Band plate winding system

Information

  • Patent Grant
  • 6585187
  • Patent Number
    6,585,187
  • Date Filed
    Wednesday, May 15, 2002
    22 years ago
  • Date Issued
    Tuesday, July 1, 2003
    21 years ago
Abstract
The structure disclosed aims to provide a band plate winding system capable of high speed winding at a low cost. The band plate winding system comprises a carrousel type winder having a plurality of individually driven mandrels on a circular support frame provided so as to be rotationally drivable in a vertical plane, and a roll type wrapping device for supporting a plurality of unit rolls each provided so as to be moveable forward and backward between a position surrounding the mandrel located at a winding start position of the winder and a retreat position.
Description




TECHNICAL FIELD




This invention relates to a band plate winding system in rolling equipment.




BACKGROUND ART




On a line delivery side of hot rolling equipment or the like, a down coiler or carrousel type (double-drum type) winder is generally disposed as a band plate winding system for continuously winding a rolled band plate.




A conventional band plate winding system using a down coiler is shown, for example, in FIG.


36


.




As illustrated, a roller table


600


is placed on a rolling equipment line, and a pinch roll (or a deflector roll)


601


is placed near a delivery side of the rolling equipment line. A band plate


602


that has been rolled is guided to mandrels (winding drums)


603


of a plurality of down coilers placed at spaced apart locations on the delivery side of the rolling equipment line.




Around each mandrel


603


, plural pairs (


3


pairs in the drawing) of arm-shaped frames


604




a


,


604




b


,


604




c


are each provided so as to be supported at one end on a fixing base


605


via a shaft


606


. Each frame is pivotable such that its front end is brought toward or away from each mandrel


603


from three directions.




On the pairs of frames


604




a


,


604




b


,


604




c


, unit rolls


607


are supported so as to come into contact with the mandrel


603


, and presser plates


608


are also supported integrally to face an outer surface of the mandrel


603


. To these frames


604




a


,


604




b


,


604




c


, driving cylinders


609


are connected for driving the frames


604




a


,


604




b


,


604




c


so as to be brought toward or away from the outer surface of the mandrel


603


.




Thus, the rolled band plate


602


is moved from the pinch roll


601


along a guide (not shown), and its front end is guided to one of the mandrels


603


. Then, with the band plate


602


being pressed against the outer surface of the mandrel


603


by the three unit rolls


607


upon driving by the driving cylinders


609


, the mandrel


603


is rotationally driven in a winding direction. In this manner, winding of the band plate


602


is performed.




After a predetermined length of the band plate


602


is taken up, the band plate


602


is cut with a cutter (not shown) disposed on the line. A front end of the remaining band plate


602


is guided from the other pinch roll


601


to the other mandrel


603


, and the band plate


602


is similarly wound. During this period, a coil of the band plate


602


is removed from the outer surface of the mandrel


603


, which has finished winding, onto a carrier trolley or the like. In this manner, winding into a coil is continued.




A conventional band plate winding system using a carrousel type winder is exemplified in FIG.


37


.




As illustrated therein, a circular support frame


610


is installed at a delivery-side side portion of a rolling equipment line so as to be rotationally driven in a vertical plane. At symmetrical positions of the support frame


610


, a plurality of mandrels


611


are supported horizontally via bearings. The drawing shows a case in which there are two mandrels


611


.




The support frame


610


is turned, as necessary, by an inherent driving system. The mandrels


611


on the support frame


610


are driven in a winding or unwinding manner by individual driving systems when a band plate is wound into or unwound from a coil C.




At the rolling equipment line side on the support frame


610


, a wrapping device


612


for a band plate


602


is provided which moves so as to surround or expose the mandrel


611


.




The wrapping device


612


is composed of a pair of arm-shaped frames


614


and a pair of arm-shaped frames


615


having one end rotatably mounted on a fixing base


613


via shafts and spreading around the mandrel


611


, a belt or chain member


617


passed in an endless form over four guide rolls


616


supported on the pairs of arm-shaped frames


614


and


615


so as to contact the mandrel


611


, and two cylinders


618


and


619


for driving both frames


614


and


615


to open and close.




The cylinders


618


and


619


have cylinder portions rotatably supported on a fixing base


620


via shafts, and have driving ends rotatably attached to side portions of the frames


614


and


615


via shafts.




The band plate coil C wound onto the other mandrel


611


is withdrawn from the mandrel


611


, and carried by a trolley


621


.




Thus, the band plate


602


that has run on a roller table


600


of the rolling equipment line and has left a pinch roll


601


is guided to the mandrel


611


within the wrapping device


612


. Then, the band plate


602


is pressed against an outer surface of the mandrel


611


under tension of the belt or chain member


617


. During this action, the band plate


602


is formed into a band plate coil C by the winding action of the mandrel


611


.




When the diameter of the band plate coil C has become large, the cylinders


618


and


619


are driven in a contracted manner to release the belt or chain member


617


. The support frame


610


is turned 180° clockwise, and brought to a halt.




Then, the belt or chain member


617


is delivered to the surroundings of an unloaded mandrel


611


. The band plate


602


, which enters the band plate coil C supported on the mandrel


611


at the symmetrical position, is cut with a shear (not shown) disposed on the line. A front end of the cut band plate


602


is guided to the empty mandrel


611


inside the belt or chain member


617


to continue similar winding for forming a band plate coil C.




A tail end of the cut band plate


602


on the band plate coil C side, on the other hand, is taken up into the band plate coil C, and then, the winding action of the mandrel


611


is stopped. The band plate coil C on the mandrel


611


is extracted by a hoisting/lowering and traveling operation of the trolley


621


, and carried to a next step.




With the band plate winding system using a down coiler shown in

FIG. 36

, a high-temperature band plate


602


that has been hot rolled can be wound at a high rate expressed as “a plate speed of about 1,000 m/min”.




However, there may be a case in which a trailing end of a preceding band plate and a leading end of a succeeding band plate on the rolling line are weld bonded, while being continuously rolled, and are continuously wound. In this case, 2 to 3 down coilers need to be arranged in tandem on the delivery side of the rolling equipment line.




This has posed the problem that the length of the rolling equipment line becomes large, and the installation of the plural down coilers inevitably increases the equipment cost.




With the band plate winding system using a carrousel type winder shown in

FIG. 37

, the provision of plural mandrels


611


on a single circular support frame


610


reduces the length of the line and the scale of equipment.




However, even when the rotational driving force of the mandrel


611


is increased, the belt or chain driven by this rotational force can not be moved at a high speed. Thus, as high speed a run as made by the down coiler shown in

FIG. 36

is impossible with the carrousel type winding of the band plate


602


.




When a chain wrapper is used for hot rolling, for example, “a plate speed of about 250 m/min” is the maximum allowable running speed. This device cannot be used in equipment with a plate speed higher than that.




Hence, an object of the present invention is to provide a band plate winding system capable of high speed winding at a low cost.




DISCLOSURE OF THE INVENTION




To attain the above object, a band plate winding system according to the present invention comprises a carrousel type winder having a plurality of individually driven mandrels on a circular support frame provided so as to be rotationally drivable in a vertical plane; and a roll type wrapping device for supporting a plurality of unit rolls each provided so as to be movable forward and backward between a position surrounding the mandrel located at a winding start position of the winder and a retreat position.




Thus, a band plate can be wound under high speed rolling to a degree comparable to that using a conventional down coiler even during hot rolling. Also, the scale of equipment, the size of an installation space, and the cost of equipment can be markedly decreased because of the concomitant use of the carrousel type winder.




The winding start position for winding by the mandrel of the winder is at the same level as a pass line height of the band plate. Thus, the band plate delivered from a delivery side of a rolling equipment line can be smoothly fed to an empty mandrel located at the winding start position.




The roll type wrapping device that supports the plurality of unit rolls is provided on a common shaft of a support base. Thus, the wrapping device can be placed appropriately so as to surround the mandrel.




A unit roll driving device for rotationally driving each of the plurality of unit rolls comprises transmission means which transmits a rotational force of a driving motor in a direction nearly perpendicular to an axis of the unit roll and which pivots integrally with a frame for supporting the unit roll; one of connector portions of the transmission means is connected by a transmission shaft to an end of the unit roll opposed to the one connector portion; and the driving motor is connected to the other connector portion of the transmission means. Thus, the driving motor and the other connector portion of the transmission means can be connected together via a short transmission shaft or directly. Furthermore, the transmission shaft that connects the one connector portion of the transmission means to the end of the unit roll opposed to the one connector portion may be short in length, and can be held at a slight angle. Hence, a system which can be operated safely at a high speed, with vibrations being decreased, can be constructed in a compact size.




The unit roll driving device for rotationally driving each of the plurality of unit rolls comprises a parallel plate provided, outside and apart from a frame for supporting the unit roll, so as to turn integrally with the frame; at least two bevel gear boxes provided on the parallel plate; a transmission shaft for connecting these bevel gear boxes together; a transmission shaft for connecting one of the bevel gear boxes to an end of the unit roll opposed to the one bevel gear box; and a transmission shaft for connecting the other bevel gear box to a driving motor via universal joints. Thus, the transmission shaft that connects the other bevel gear box to the driving motor via the universal joints can be shortened. Furthermore, the transmission shaft that connects the one bevel gear box to the end of the unit roll opposed to the one bevel gear box may be short in length, and can be held at a slight angle. Hence, a system which can be operated safely at a high speed, with vibrations being decreased, can be constructed in a compact size.




A pair of bevel gears in the bevel gear box are constituted at a speed increasing gear ratio. Thus, the transmission shaft that connects the other bevel gear box to the driving motor via the universal joints is rotated at a relatively low speed. As a result, vibrations occurring in this transmission shaft are further suppressed to promote safety. Since the transmission shaft can be rotated at a low speed, moreover, a large allowable inclination angle can be taken for the transmission shaft, and the entire length of the transmission shaft can be shortened further.




The unit roll driving device for rotationally driving the plurality of unit rolls comprises a gear support panel provided, outside and apart from a frame for supporting the unit rolls, so as to pivot integrally with the frame; multi-stage gears placed at a pivot center position on the gear support panel, at positions on nearly the same axes as the unit rolls, and between both of the positions, and mounted and supported on the gear support panel so as to mesh with each other; a driving motor connected to a shaft of the gear placed at the pivot center position among the multi-stage gears, thereby rotationally driving this gear; and transmission shafts for connecting shafts of the gears, placed at the positions on nearly the same axes as the unit rolls among the multi-stage gears, to ends of the unit rolls corresponding to the shafts of the gears. Thus, long transmission shafts are not required for driving the unit rolls. Short transmission shafts which connect the shafts of the gears, placed at the positions on nearly the same axes as the unit rolls, to the ends of the unit rolls corresponding to the shafts of the gears can be used at a small inclination angle. Hence, a system which can be operated safely at a high speed can be constructed in a compact size.




A deflector device for guiding the band plate to the winder comprises an upper deflector roll disposed above a pass line of the band plate upstream of the winder; and upper guide means which is disposed forwardly and backwardly movably so as to be located above the pass line of the band plate between the winder and the upper deflector roll, and which has a lower surface whose upper deflector roll side can be positioned above a horizontal line in contact with a lower portion of the upper deflector roll, the lower surface of the upper guide means being an inclined surface sloping downward toward the winder. Thus, even when the spacing between the upper deflector roll and the upper guide means is great, the front end of the band plate does not enter this spacing, but is positioned below the lower surface of the upper guide means and guided to the winder by this lower surface. Hence, even if the front end of the band plate warps upward, the front end of the band plate can be guided to the winder reliably.




An auxiliary deflector roll is provided which is disposed so as to be movable forward and backward integrally with the upper guide means, and which increases an angle of deflection of the band plate from the upper deflector roll. Thus, the spacing between the upper deflector roll and the upper guide means is set to be slightly greater than the thickness of the band plate. Even if the upper deflector roll side of the lower surface of the upper guide means is set at an even larger height, the auxiliary deflector roll increases the angle of deflection of the band plate from the upper deflector roll so that the upper guide means, etc. do not impede the traveling movement of the band plate. Hence, even if the front end of the band plate warps upward, the front end of the band plate can be guided to the winder more reliably.




The roll type wrapping device for supporting the plurality of unit rolls is constituted such that of the plural unit rolls provided so as to be movable toward and away from the mandrel, the unit roll located above the mandrel is supported by an upper frame which moves toward and away from the mandrel from above the mandrel, while the other unit roll is supported by a lower frame which moves toward and away from the mandrel from below the pass line of the band plate. Thus, the unit roll positioned above the mandrel need not be supported by the lower frame. Hence, the length of the lower frame can be decreased to minimize a space necessary for forward and backward movement, so that the entire system can be downsized.




First guide means for guiding a front end of the band plate to a wrapping entrance of the mandrel is provided on the upper frame. Thus, the band plate can be guided to the mandrel reliably by the first guide means. Whereas the upper frame is moved to a retracted position, a position at which the upper frame does not hinder the movement of the band plate. Hence, the upper frame does not contact the band plate being wound, so that damage to the band plate can be prevented. Furthermore, when the upper frame is pushed outward to the operating position to guide the front end of a cut band plate toward the mandrel located at the winding start position, this front end is delivered to a suitable inclined or parallel posture relative to the pass line of the band plate. By this measure, the front end of the band plate can be guided reliably to the wrapping entrance of the mandrel.




Second guide means facing the pass line of the band plate from above is provided pivotably between a rolling equipment side and the first guide means. Thus, the band plate can be guided to the mandrel further reliably by the second guide means. Whereas the second guide means is pivoted to an inclined state, whereby the second guide means can be brought to a position at which it does not hinder the movement of the band plate toward the mandrel. Hence, the second guide means does not contact the band plate being wound, so that damage to the band plate can be prevented. Furthermore, the second guide means is positioned below the first guide means, whereby the front end of a cut band plate can be guided to the wrapping entrance of the mandrel further reliably and safely.




Interlocking means is provided for moving wrapping guide means backward in association with a backward movement of the unit roll supported by the lower frame, the wrapping guide means being provided, on a front end side of the lower frame opposed to a front end of the upper frame, so as to be movable toward and away from the mandrel. There may be a case in which after the front end of the band plate passes along the wrapping guide means, the wrapping guide means cannot recede when it is attempted to move the wrapping guide means backward. Even in this case, the interlocking means enables the wrapping guide means to recede in association with the backward movement of the unit roll supported by the lower frame. Hence, the front end of the band plate can be prevented from jamming between the wrapping guide means and the mandrel.




The unit roll supported by the upper frame is larger in diameter than the unit roll supported by the lower frame. Thus, the band plate contacts the mandrel at the first entrance with a large roll curved surface, so that the front end of the band plate can be drawn in more reliably along an outer peripheral surface of the mandrel, and the front end of the band plate can be reliably brought upward or downward in an assorted manner. Furthermore, even when the gap between the wrapping guide means and the mandrel is rendered large, the front end of the band plate can be reliably brought upward or downward in an assorted manner. Hence, jamming of the front end of the band plate can be prevented further reliably.




The roll type wrapping device for supporting the plurality of unit rolls is constituted such that a small cylinder for backup of the unit roll supported on a large frame via a panel-like arm among the plurality of unit rolls provided so as to be movable toward and away from a circumferential surface of the mandrel located at the winding start position has a built-in pressure oil chamber containing an amount of a pressure oil enough to absorb and cushion maximum impact force which the unit roll undergoes. Thus, failure of the system and the occurrence of a defective product due to impact force during band plate winding can be resolved, and productivity increased.




The small cylinder for backup of the unit roll comprises an oil chamber for piston stroke having a rod side connected to the panel-like arm and a cylinder side connected to a large frame side, and having a required length for extending and contracting a piston rod; and an oil chamber for impact force cushioning provided to communicate with a head side of the oil chamber for piston stroke. Thus, failure of the system and occurrence of a defective product due to impact force during band plate winding can be resolved, and productivity increased.




The oil chamber for piston stroke and the oil chamber for impact force cushioning are connected together via an intermediate cover portion, and communicate with each other through a flow path inside the intermediate cover portion. Thus, an intermediate part of the long cylinder can be reinforced, and the cylinder can be mounted safely on the large frame by the intermediate cover portion.




The roll type wrapping device for supporting the plurality of unit rolls comprises two unit roll support frames provided so as to derrick and pivot from an upstream side of a rolling equipment line about lower support shafts as centers of rotation until facing the mandrel at a wrapping start position, the two unit roll support frames being each in the form of a frame individually movable between a set mandrel facing position and a set retreat position without interference by each other. Thus, at the time of the switching movement of the two unit roll support frames to a band plate wrapping position and the retreat position, collision and interference between both of the frames are resolved. Hence, damage to the machine and interruption of operation due to their collision or interruption can be eliminated.




Of the two unit roll support frames, the support frame for the upper unit roll is placed externally, while the support frame for the lower unit roll is placed internally, and a shape of the external support frame and a shape of the internal support frame are combined such that the internal support frame is movable to the retreat position when the external support frame has been brought to a band plate wrapping position at which the external support frame faces the mandrel. Thus, at the time of the switching movement of the two unit roll support frames to the band plate wrapping position and the retreat position, collision and interference between both of the frames are resolved. Hence, damage to the machine and interruption of operation due to their collision or interruption can be eliminated.




Of the two unit roll support frames, at least the internally placed support frame for the lower unit roll is mounted detachably on the support shaft by a semi-arcuate divided type boss portion. Thus, mounting and dismounting of the internal frame become markedly easy for maintenance and so forth.




The roll type wrapping device for supporting the plurality of unit rolls supports the unit rolls on a plurality of pivoting frames which pivot so as to be movable toward and away from a circumferential surface of the mandrel located at the winding start position; a first panel-like arm and a second panel-like arm are pivotably provided on at least one of the plurality of pivoting frames, the first panel-like arm having a band plate wrapping guide at a front end thereof, and the second panel-like arm having a band plate wrapping guide at a front end thereof and being provided with the unit roll; and a pivot shaft of the second panel-like arm is placed in a plane of lateral projection of the first panel-like arm at the winding start position. Thus, the distance between the shafts of the shaft-attached portion of the second panel-like arm and the unit roll can be enlarged. Hence, when a reaction force of the band plate is imposed on the unit roll, the panel-like arm can pivot smoothly, so that concentration of stress on the shaft-attached portion is resolved.




A driving shaft for each of the unit rolls is provided on a work side of a rolling equipment line, and a detachable mandrel front end support device is provided opposite a front end of the mandrel located at the winding start position, the mandrel front end support device having a sectional shape passing between the unit rolls facing a circumferential surface of the mandrel at the winding start position, and between unit roll driving systems, and the mandrel front end support device being movable parallel to an axis of the mandrel. Thus, even when the unit roll driving system of the roll type wrapping device is provided on the work side of the rolling equipment line, the mandrel front end support device does not interfere with the driving system for the unit roll. Hence, the mandrel front end support device can be installed safely at the winding start position, and failure of band plate winding by the winder can be resolved.




The detachable mandrel front end support device is adapted to be movably engaged on track elements fixedly placed on a support base in parallel with the axis of the mandrel, and to be moved to a position, at which the detachable mandrel front end support device is attached to or detached from the front end of the mandrel, by driving means placed on the support base. Thus, movement of the detachable mandrel front end support device can be performed easily.




A parallel partition wall is provided, with the mandrel front end support device being sandwiched between the partition wall and a support frame for the unit roll, and pivots integrally with, but apart from, the support frame; and the unit roll driving system is provided, with the partition wall serving as an intermediate support point. Thus, the spacing between the unit roll driving system and the detachable mandrel front end support device becomes easy to maintain, and the unit roll driving system can be downsized.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a schematic side view of a band plate winding system showing a first embodiment of the present invention;





FIG. 2

is an enlarged side view of an essential part of

FIG. 1

;





FIG. 3

is a schematic side view of a unit roll driving device showing a second embodiment of the present invention;





FIG. 4

is a development sectional view taken along line I—I of

FIG. 3

;





FIG. 5

is a side view of the constitution of bevel gears of a unit roll driving device showing a third embodiment of the present invention;





FIG. 6

is a schematic side view of a unit roll driving device showing a fourth embodiment of the present invention;





FIG. 7

is an enlarged side view of a multi-stage gear transmission mechanism in

FIG. 6

;





FIG. 8

is a front view taken on line II—II of FIG.


7


;





FIG. 9

is a schematic side view of a deflector device showing a fifth embodiment of the present invention;





FIG. 10

is a schematic side view of a deflector device showing a sixth embodiment of the present invention;





FIG. 11

is an explanation view of the operation of the deflector device;





FIG. 12

is an explanation view of the operation of the deflector device subsequent to the operation of

FIG. 11

;





FIG. 13

is an explanation view of the operation of the deflector device subsequent to the operation of

FIG. 12

;





FIG. 14

is an explanation view of the operation of the deflector device subsequent to the operation of

FIG. 13

;





FIG. 15

is a schematic side view of a band plate winding system showing a seventh embodiment of the present invention;





FIG. 16

is a side view of an essential part of a band plate winding system showing an eighth embodiment of the present invention;





FIG. 17

is a side view of an essential part of a band plate winding system showing a ninth embodiment of the present invention;





FIG. 18

is a side view of an essential part of a band plate winding system showing a tenth embodiment of the present invention;





FIG. 19

is a side view of an essential part of a band plate winding system showing an eleventh embodiment of the present invention;





FIG. 20

is a sectional view of a small cylinder for a unit roll support arm showing a twelfth embodiment of the present invention;





FIG. 21

is a side view showing a state of mounting of the small cylinder;





FIG. 22

is a side view of two frame portions on an upstream side of a rolling equipment line showing a thirteenth embodiment of the present invention;





FIG. 23

is a front view of the frame portions in

FIG. 22

;





FIG. 24

is an enlarged side view of the III portion in

FIG. 22

;





FIG. 25

is a front view taken on line IV—IV of

FIG. 24

;





FIG. 26

is an explanation view of the operation of the frame portions in

FIG. 22

;





FIG. 27

is another explanation view of the operation of the frame portions in

FIG. 22

;





FIG. 28

is a side view of an essential part of a band plate winding system showing a fourteenth embodiment of the present invention;





FIG. 29

is a front view taken on line V—V of

FIG. 28

;





FIG. 30

is a side view of the band plate winding system in

FIG. 28

;





FIG. 31

is a front view of a band plate winding system showing a fifteenth embodiment of the present invention;





FIG. 32

is a side view taken on line VI—VI of

FIG. 31

;





FIG. 33

is a side view taken on line VII—VII of

FIG. 31

;





FIG. 34

is a front view of a band plate winding system showing a sixteenth embodiment of the present invention;





FIG. 35

is a side view taken on line VIII—VIII of

FIG. 34

;





FIG. 36

is a schematic side view showing an example of a conventional band plate winding system; and





FIG. 37

is a schematic side view showing another example of a conventional band plate winding system.











BEST MODE FOR CARRYING OUT THE INVENTION




A band plate winding system according to the present invention will now be described in detail by way of the following embodiments with reference to the accompanying drawings.




[First Embodiment]





FIG. 1

is a schematic side view of a band plate winding system showing a first embodiment of the present invention.

FIG. 2

is an enlarged side view of an essential part of FIG.


1


.




As shown in

FIG. 1

, a carrousel type double-drum winder


5


is placed on a delivery side of a rolling equipment line. This winder


5


is composed of a circular support frame


6


to be rotationally driven in a vertical plane, and two individually drivable mandrels


7


,


7


provided at symmetrical positions of the circular support frame


6


. The two mandrels


7


,


7


on the circular support frame


6


have a winding start position which is a pass line height position of a band plate


3


close to the delivery side of the rolling equipment line.




A roll type wrapping device


10


is placed so as to be movable between a position, at which the wrapping device


10


surrounds the mandrel


7


stopped at the winding start position, and a retreat position at which the wrapping device


10


does not interfere with the turning of the circular support frame


6


.




The wrapping device


10


has three pairs of large and small arm-shaped frames (i.e., a pair of arm-shaped frames


13


, a pair of arm-shaped frames


14


and a pair of arm-shaped frames


15


) extending so as to surround the mandrel


7


, with one end of each frame being supported by a common shaft


12


on a support base


11


placed below the mandrel


7


located at the winding start position and near the delivery side of the rolling equipment line; and three pairs of frame opening and closing cylinders (i.e., a pair of opening and closing cylinders


17


, a pair of opening and closing cylinders


18


, and a pair of opening and closing cylinders


19


) each having a rod end connected to an outer portion of each of the frames


13


to


15


, and having a cylinder portion connected onto the support base


11


by a shaft


16


in a configuration in which the cylinders pivot the frames


13


to


15


to the retreat position.




The pair of frames


13


, as shown in

FIG. 2

, extend from below toward a rear surface of the mandrel


7


in, and have at a front end portion and an intermediate portion thereof two panel-like arms


20


,


21


connected at one end onto the frames


13


by shafts


20




a


and


21




a


. The two panel-like arms


20


,


21


are provided, respectively, with a unit roll


22




a


and a presser plate


23




a


, and a unit roll


22




b


and a presser plate


23




b


, which come into contact with the band plate


3


onto the mandrel


7


. Between an intermediate portion of each of the arms


20


and


21


and the frame


13


, small cylinders


24




a


,


24




b


are provided for pressing the unit rolls and the presser plates against a surface of the mandrel


7


.




The pair of frames


14


are in a size comparable to that of the panel-like arms


20


,


21


, extend to an outer lower half surface of the mandrel


7


. Like the panel-like arms


20


,


21


, the frame


14


is provided with a unit roll


22




c


and a presser plate


23




c


, which are to be pushed against the surface of the mandrel


7


by the opening and closing cylinder


18


.




The pair of frames


15


extend to pass above the frame


14


and face an upper outer surface of the mandrel


7


. Similarly, the frame


15


is provided with a unit roll


22




d


and a presser plate


23




d


, which are to be pushed against the surface of the mandrel


7


by the opening and closing cylinder


19


.




The four unit rolls


22




a


to


22




d


and presser plates


23




a


to


23




d


are adapted to press the band plate


3


being wound by the mandrel


7


against the surface of the mandrel


7


at four circumferentially spaced locations with an adjusted force, thereby shaping it.




Furthermore, a trolley


25


is provided for taking a coil C, wound onto the other mandrel


7


on the circular support frame


6


, out of the mandrel


7


and carrying the coil C.




The band plate winding system of the present invention constituted as above is used in the following manner:




During rolling operation, the winder S turns the circular support frame


6


clockwise to send an empty mandrel


7


sequentially to the winding start position, and stops.




At this time, the wrapping device


10


contracts the cylinders


17


to


19


to move the frames


13


to


15


to the retreat position indicated by dashed lines, and enters await state. After the empty mandrel


7


moves to and stops at the winding start position, the cylinders


17


to


19


are extended to bring the frames


13


to


15


to positions indicated by solid lines in the surroundings of the empty mandrel


7


.




The band plate


3


, which runs on a roller table


1


and is delivered from a pinch roll


2


on the delivery side of the rolling equipment line, is guided by guide rollers onto the empty mandrel


7


located at the winding start position.




The band plate


3


begins to be pressed by the unit rolls


22




a


to


22




d


of the wrapping device


10


, and wound by the mandrel


7


at the same time, whereby a coil C of the band plate


3


is formed on the mandrel


7


.




At this time, bulges of the band plate


3


between the unit rolls


22




a


to


22




d


are prevented by the presser plates


23




a


to


23




d.






At a time when a predetermined length of the band plate


3


has been wound, the wrapping device


10


is released and moved to the retreat position shown by the dashed line. The circular support frame


6


of the winder


5


is turned a half turn clockwise to move an empty mandrel


7


to the winding start position and stop it there.




The wrapping device


10


is sent to the solid-line position to make it ready for winding of a next band plate


3


.




The band plate


3


is cut with a shear on the delivery side of the rolling equipment line. A tail end side of the cut band plate


3


is guided by guide means, whereupon winding of the band plate


3


onto the mandrel


7


moved to an upper right position of the circular support frame


6


is completed. At this time, winding of this mandrel


7


is stopped.




A front end of the cut band plate


3


is guided by guide rollers onto an empty mandrel


7


located at the winding start position, and the same winding of the band plate


3


as described above is repeated.




The coil C on the upper right mandrel


7


that has finished winding is taken out by the trolley


25


from the mandrel


7


, and carried to a subsequent step.




On this occasion, the wrapping device


10


is constituted to be of a roll type having the plurality of unit rolls


22




a


to


22




d


. Thus, even during hot rolling, winding of the band plate


3


under high speed rolling at a speed as fast as “a plate speed of 1,000 m/min” can be performed as with a conventional down coiler (FIG.


36


).




Also, the carrousel type (double-drum type) winder


5


can be used concomitantly, so that the scale of equipment, the size of an installation space, and the cost of equipment can be markedly decreased.




The foregoing embodiment shows an example in which the four unit rolls are present, but three or more unit rolls may be used.




[Second Embodiment]





FIG. 3

is a schematic side view of a unit roll driving device showing a second embodiment of the present invention.

FIG. 4

is a development sectional view taken along line I—I of FIG.


3


.




In

FIGS. 3 and 4

, the reference numeral


51


denotes a parallel plate. This parallel plate


51


is fixedly supported via a binding material


60


on an outside of a large frame


41


on a front end side of a mandrel


35


, and is provided parallel at a distance from the large frame


41


. The parallel plate


51


is also constituted to have a shape spreading along loci


37




a


,


37




b


ranging from positions at which it faces ends of two unit rolls


37


,


37


on the large frame


41


, to retracted positions


37


′,


37


′ to which the unit rolls


37


,


37


on the large frame


41


move.




On an outer surface of the parallel plate


51


, four bevel gear boxes


52


are fixed. Of them, the upper two bevel gear boxes


52


are placed at positions opposed to the ends of the unit rolls


37


,


37


on the large frame


41


, while the lower two bevel gear boxes


52


are placed at the other end and an obliquely lower portion of the parallel plate


51


along the loci


37




a


,


37




b


of the unit rolls


37


,


37


on the large frame


41


moving to their retracted positions


37


′,


37


′.




In

FIG. 4

, the reference numeral


53


denotes a pair of perpendicularly intersecting bidirectional bevel gears rotatably supported in each bevel gear box


52


via bearings. The reference numeral


54


denotes a transmission shaft connected via universal joints


55


between an end portion of each of the unit rolls


37


,


37


on the large frame


41


and a shaft end of the bevel gear


53


of the bevel gear box


52


corresponding to the end portion. The reference numeral


56


denotes a transmission shaft fixedly connected between shaft ends of each pair of bevel gear boxes


52


along the movement loci


37




a


,


37




b


. The reference numeral


57


denotes a unit roll driving motor installed near the height of the parallel plate


51


when retracted. The reference numeral


58


denotes an output shaft of the driving motor


57


. The reference numeral


59


denotes a transmission shaft connected via universal joints


55


between the end of a horizontal shaft of the lower bevel gear box


52


on the parallel plate


51


and the end of the motor output shaft


58


.




That is, the upper bevel gear box


52


and the lower bevel gear box


52


are connected together by the transmission shaft


56


. The upper bevel gear box


52


and the end of the unit roll


37


opposed to the upper bevel gear box


52


are connected together by the transmission shaft


54


via the universal joints


55


. The lower bevel gear box


52


and the driving motor


57


are connected together by the transmission shaft


59


via the universal joints


55


. The driving motor


57


is placed at a position at which the angle of inclination of the transmission shaft


59


is kept within 15°.





FIG. 4

shows only the unit roll


37


located at the front end side of the large frame


41


, and the driving system therefor. However, the same driving system as this one is constituted for the unit roll


37


on the intermediate portion side of the large frame


41


. The other constitution is the same as in the first embodiment, and a detailed explanation will be omitted herein by reference to the first embodiment.




According to the system of the above constitution, the large frame


41


of a wrapping device


36


is moved between an operating position, which is opposed to a mandrel


35


moved to a winding start position


35




a


, and a retracted position


41


′ (see

FIG. 6

) upon extension and contraction of a driving cylinder


46


. Other frames, i.e., a medium frame


42


and a small frame


43


, are also moved between the operating position and the retracted position simultaneously upon extension and contraction of driving cylinders


47


,


48


. The parallel plate


51


is moved between the operating position and the retracted position integrally with the large frame


41


.




In a state in which the large frame


41


and the parallel plate


51


have been brought to the operating position indicated by a solid line in

FIGS. 3 and 4

, the mandrel


35


and the unit roll


37


are rotationally driven to wrap a band plate


33


delivered from a rolling line around the mandrel


35


.




At this time, the unit roll


37


is rotationally driven by the driving motor


57


. That is, a rotational force of the driving motor


57


is transmitted to the bevel gear box


52


via the transmission shaft


59


. Then, this force is transmitted by the bevel gear box


52


and the transmission shaft


56


in a direction perpendicular to the axis of the unit roll


37


. The force is further transmitted to the unit roll


37


by the transmission shaft


54


.




At the completion of winding of the band plate


33


onto the mandrel


35


, driving by the driving motor


57


is stopped. Upon contraction of the driving cylinders


46


to


48


, the frames


41


to


43


and the parallel plate


51


are moved to retracted positions indicated by one-dot chain lines in the drawing. At this time, the transmission shaft


59


keeps a constant angle of inclination (e.g., 15°), with the universal joint


55


at the end of the motor output shaft


58


as a fixed point, and with the universal joint


55


at the end of the lower bevel gear box


52


as a moving point. In this manner, the transmission shaft


59


pivots between the operating position and the retracted position. A radius of pivoting, r, of the universal joint


55


on the lower bevel gear box


52


side about the axis of the motor output shaft


58


is about r=1.3 m on an actual machine basis. Thus, the radius of pivoting, r, can be reduced by a little more than 20% compared with conventional systems.




Under these conditions (angle of inclination: 15°, radius of pivoting: 1.3 m), the transmission shaft


59


is connected between the lower bevel gear box


52


and the driving motor


57


. By so doing, the length, l, of the transmission shaft


59


is halved to a little more than about 5 m, as shown in FIG.


4


.




The transmission shaft


54


between the upper bevel gear box


52


and the unit roll


37


may be short, and can be held at a slight angle of inclination, even if a gap allowance by the driving cylinder for the panel-like arm is included.




According to the unit roll driving device of the present embodiment, therefore, there can be provided a system of a compact size in which the length of the transmission shaft


59


for driving of the unit roll can be shortened to decrease vibrations, and which can be operated safely at a high speed with a large angle of inclination.




[Third Embodiment]





FIG. 5

is a side view of the constitution of bevel gears of a unit roll driving device showing a third embodiment of the present invention.




The driving device of this embodiment is the unit roll driving device of the second embodiment constituted with a change in the gear ratio of the pair of bevel gears


53


inside the bevel gear box


52


.




In

FIG. 5

, the reference


52


denotes a bevel gear box corresponding to the two unit rolls


37


on the large frame


41


. Within the bevel gear box


52


, bevel gears


61


,


63


are provided as a pair of bevel gears


53


. The bevel gear


61


is supported by a bearing


62


of the bevel gear box


52


, and connected to a transmission shaft


54


. Whereas the bevel gear


63


is supported by a bearing


62


′, and connected to a transmission shaft


56


.





FIG. 5

shows a case in which the gear ratio between the bevel gears


61


and


63


is set at ½, so that revolutions on the part of the transmission shaft


56


are doubled and transmitted to the transmission shaft


54


on the part of the unit roll


37


. This gear ratio is not restricted to ½, but may be set as necessary. A speed increasing gear ratio may also be applied to the bevel gears of the lower bevel gear box


52


to increase the speed progressively.




When such a speed increasing gear ratio is used, for instance, when the gear ratio between the bevel gears


61


and


63


is set at ½, driving the output shaft


58


of the driving motor


57


and the transmission shaft


59


in

FIG. 4

at 700 revolutions per minute enables the unit roll


37


side to be driven at predetermined 1400 revolutions per minute.




Thus, according to the unit roll driving device of the present embodiment, the transmission shaft


59


is rotated at a relatively low speed. Consequently, vibrations occurring in the transmission shaft


59


are further suppressed, and safety is enhanced. Since the transmission shaft


59


can be rotated at a low speed, the allowable angle of inclination of the transmission shaft


59


can be made large, and the entire length of the transmission shaft


59


can be shortened further.




[Fourth Embodiment]





FIG. 6

is a schematic side view of a unit roll driving device showing a fourth embodiment of the present invention.

FIG. 7

is an enlarged side view of a multi-stage gear transmission mechanism in FIG.


6


.

FIG. 8

is a front view taken on line II—II of FIG.


7


.




In

FIGS. 6 and 8

, the reference numeral


71


denotes a gear support panel. The gear support panel


71


is fixedly supported via a binding material


72


on an outside of a large frame


41


at a front end side of a mandrel


35


, and is provided in parallel with and apart from the large frame


41


. The gear support panel


71


is formed in a range extending from a position at which it covers end portions of two unit rolls


37


,


37


on the large frame


41


, to a position at which it covers a support shaft


40


for the large frame


41


. As shown in

FIG. 8

, the gear support panel


71


contains six gears


73


,


74


,


75


,


76


,


77


and


78


meshing in multiple stages. These gears


73


to


78


are each supported via a bearing (not shown) on the gear support panel


71


. In

FIGS. 6 and 7

, these built-in gears


73


to


78


are illustrated in an exposed state.




The first-stage gear


73


is supported by the gear support panel


71


coaxially with the support shaft


40


for the large frame


41


. The shaft of this first-stage gear


73


is coupled via a coupling


81


to an output shaft


80


of a driving motor


79


provided on and adjacent a base


38


. The shaft of this first-stage gear


73


is also supported by a bearing


82


on the base


38


together with the gear support panel


71


.




The fourth-stage gear


76


and the sixth-stage gear


78


have the same diameter, and are rotatably provided on the gear support panel


71


at positions nearly coaxial with the intermediate and upper unit rolls


37


,


37


on the large frame


41


. The second-stage gear


74


and the third-stage gear


75


are placed linearly between the first-stage gear


73


and the fourth-stage gear


76


to transmit a rotational force of the first-stage gear


73


to the fourth-stage gear


76


. The fifth-stage gear


77


is placed linearly between the fourth-stage gear


76


and the sixth-stage gear


78


to transmit the rotational force.




These multi-stage gears


73


to


78


may be arranged on as stated above, or may be arranged zigzag with the second-, third- and fifth-stage gears being displaced right and left. In

FIGS. 6

to


8


, the first-stage gear


73


to the fourth-stage gear


76


are shown to have the same diameter. However, these gears, from


73


to


76


, may be gears having a speed increasing ratio.




In

FIG. 8

, the reference numerals


83


and


84


denote extendable transmission shafts connected via universal joints


85


between the shafts of the fourth-stage gear


76


and the sixth-stage gear


78


and end portions of the unit rolls


37


,


37


corresponding to these shafts. That is, the shafts of the gears


76


,


78


at positions nearly coaxial with the unit rolls


37


,


37


on the large frame


41


, and the ends of the unit rolls


37


,


37


corresponding to these gear shafts, are interconnected by the transmission shafts


83


,


84


. The reference numeral


86


in

FIG. 8

denotes a moving bearing which attaches to or detaches from the front end of a mandrel


35


. The other constitutions are the same as in the first embodiment, and a detailed explanation for them will be omitted by referring to the first embodiment.




According to the system of the above constitution, the large frame


41


of a wrapping device


36


is conveyed between an operating position, which is opposed to the mandrel


35


moved to a winding start position


35




a


, and a retracted position


41


′, by the extension and contraction of a driving cylinder


46


. Simultaneously, a medium frame


42


and a small frame


43


are also conveyed between an operating position and a retracted position by the extension and contraction of driving cylinders


47


,


48


. The gear support panel


71


is moved between an operating position and a retracted position integrally with the large frame


41


.




In a state in which the large frame


41


and the gear support panel


71


have been fed to the operating position indicated by solid lines in

FIGS. 6

to


8


, the mandrel


35


and the unit rolls


37


are rotationally driven to wrap a band plate


33


delivered from the rolling line around the mandrel


35


.




When, on this occasion, the output shaft


80


is driven at 1,400 rpm by the driving motor


79


, the first-stage gear


73


is rotated at the same revolution speed. These revolutions are sequentially transmitted to the multistage gears


74


to


78


, whereby the fourth-stage gear


76


and the sixth-stage gear


78


are rotated at the same speed in the same direction. That is, the rotational force of the driving motor


79


is transmitted by the multi-stage gears


73


to


78


in a direction perpendicular to the axis of the unit roll


37


. Revolutions of the fourth-stage gear


76


and the sixth-stage gear


78


are transmitted to the unit rolls


37


via the transmission shafts


83


,


84


, respectively, whereupon the unit rolls


37


are rotated in the same direction at the same speed.




When the multi-stage gears


73


to


76


are constituted to have a constant speed increasing gear ratio, the motor output shaft


80


is rotated at a low speed (e.g., 700 rpm), and the fourth-stage gear


76


and the sixth-stage gear


78


(accordingly, the unit rolls


37


) can be rotated at a high speed (1,400 rpm).




At this time, the gear support panel


71


may be provided at a position relatively close to the end of the mandrel


35


. Thus, the transmission shafts


83


,


84


interconnecting the unit rolls


37


to the fourth-stage gear


76


and the sixth-stage gear


78


may be used with a short length and a gentle angle of inclination. Upon driving by the driving motor


79


located at a very near position, the transmission shafts


83


,


84


can transmit a rotational force, necessary for winding of the band plate


33


, to the two unit rolls


37


,


37


in the same direction at the same speed. Moreover, the entire system can be constituted in a very compact size.




Arrangement of the multi-stage gears


73


to


78


on a line facilitates the placement of the binding material


72


between the large frame


41


and the gear support panel


71


.




At the completion of winding of the band plate


33


onto the mandrel


35


, driving by the driving motor


79


is stopped. Upon contraction of the driving cylinders


46


to


48


, the frames


41


to


43


are moved to retracted positions. The large frame


41


and the gear support panel


71


are turned integrally about the support shaft


40


, and the unit rolls


37


,


37


are moved to retracted positions


37


′ shown in

FIGS. 7 and 8

.




Then, a circular support frame


34


is turned in a direction of an arrow A, whereupon the mandrel


35


at the winding start position


35




a


moves to a winding completion position


35




b


. An empty mandrel


35


at the winding completion position


35




b


moves to the winding start position


35




a


. The winding unit roll


37


is sent to the operating position again, and similar winding of the band plate


33


is repeated.




According to the unit roll driving device of the present embodiment, therefore, a long transmission shaft is not required for the driving of the unit roll


37


, and the short transmission shafts


83


,


84


can be used with a small angle of inclination. Thus, a compact system which can be operated safely at a high speed can be provided.




[Fifth Embodiment]





FIG. 9

is a schematic side view of a deflector device showing a fifth embodiment of the present invention.




As shown in

FIG. 9

, a lower deflector roll


91


is disposed below a pass line of a band plate


98


beside a pinch roll


99


between the pinch roll


99


and a wrapping device


104


. Above a pass line of the band plate


98


on the wrapping device


104


side (upstream of a winder


100


) between the pinch roll


99


and the wrapping device


104


, an upper deflector roll


92


is disposed. Below a pass line of the band plate


98


between the lower deflector roll


91


and the wrapping device


104


, entrance guide means


93


is disposed. To a front end of a medium frame


105




c


of the wrapping device


104


, lower guide means


94


is attached. To a front end of a large frame


105




a


of the wrapping device


104


, upper guide means


95


is attached.




In the upper guide means


95


, a front end of its downward guide surface


95




a


is positioned at a necessary and sufficient height, h


1


, from a horizontal L


1


in contact with a lower part of the upper deflector roll


92


. Furthermore, the downward guide surface


95




a


forms an inclined surface as a gently curved surface or a flat surface sloping downward toward mandrels


101


,


102


of the winder


100


. A gap, g, between the band plate


98


, which runs sloping upward, beginning at the upper deflector roll


92


, and the upper guide means


95


is set to be slightly greater than the thickness, of the band plate


98


(by several millimeters).




That is, the upper guide means


95


is disposed forwardly and backwardly movably so that the upper guide means


95


can be located above the pass line of the band plate


98


between the winder


100


and the upper deflector roll


92


. The upper deflector roll


92


side (front end) of its downward guide surface


95




a


(lower surface) can be positioned above the horizontal line L


1


, and the downward guide surface


95




a


forms an inclined surface sloping downward toward the winder


100


.




The above-mentioned lower deflector roll


91


, upper deflector roll


92


, entrance guide means


93


, lower guide means


94


, and upper guide means


95


together constitute a deflector device


90


of the present embodiment. The other constitutions are the same as in the first embodiment, and a detailed explanation for them will be omitted by reference to the first embodiment.




According to such a deflector device


90


, the upper deflector roll


92


side of its downward guide surface


95




a


can be positioned above the horizontal line L


1


. Thus, even when a spacing w


1


in the horizontal direction between the upper deflector roll


92


and the front end of the upper guide means


95


is large, the front end of the band plate


98


being fed at a high speed from the rolling equipment is not allowed to enter this spacing w


1


, but can be positioned below the downward guide surface


95




a


of the upper guide means


95


. In addition, the downward guide surface


95




a


of the upper guide means


95


forms an inclined surface sloping downward toward the winder


100


. Thus, the front end of the band plate


98


can be guided to a wrapping entrance of the mandrels


101


,


102


at a winding start position


100




a.






According to the above deflector device


90


, therefore, even if the front end of the band plate


98


warps upward, the front end of the band plate


98


can be guided reliably to the wrapping entrance of the mandrels


101


,


102


at the winding start position


100




a


. Hence, the band plate


98


can be continuously wound.




[Sixth Embodiment]





FIG. 10

is a schematic side view of a deflector device showing a sixth embodiment of the present invention.

FIG. 11

is an explanation view of the operation of the deflector device.

FIG. 12

is an explanation view of the operation of the deflector device subsequent to the operation of FIG.


11


.

FIG. 13

is an explanation view of the operation of the deflector device subsequent to the operation of FIG.


12


.

FIG. 14

is an explanation view of the operation of the deflector device subsequent to the operation of FIG.


13


.




As shown in

FIG. 10

, a large frame


105




a


of a wrapping device


104


according to the present embodiment is extended as follows: When unit rolls


106




a


,


106




b


(see

FIG. 11

) of the large frame


105




a


are stopped with a predetermined spacing from and around a mandrel


101


or


102


at a winding start position


100




a


(i.e., in the operating state), a front end of the large frame


105




a


is located nearer to an upper deflector roll


92


than in the case of the large frame


105




a


of the preceding embodiment.




At the front end of the large frame


105




a


, upper guide means


96


is provided. The upper guide means


96


is constituted such that a horizontal spacing w


2


between its front end and the upper deflector roll


92


is set to be smaller than the horizontal spacing w


1


between the upper deflector roll


92


and the upper guide means


95


in the preceding embodiment so that it will be slightly greater than the thickness, t, of a band plate


98


(i.e., t+several millimeters). Besides, the front end of its downward guide surface


96




a


is positioned at a height, h


2


, greater than the height h


1


in the preceding embodiment.




Above the upper guide means


96


at the front end of the large frame


105




a


, an auxiliary deflector roll


97


is provided rotatably. The auxiliary deflector roll


97


is held at such a position that its center makes a predetermined deflection angle α (e.g., 60°) for upward deflection from the center of the upper deflector roll


92


, in a state in which the unit rolls


106




a


,


106




b


of the large frame


105




a


are stopped with a predetermined spacing from and around the mandrel


101


or


102


at the winding start position


100




a


(i.e., in the operating state).




That is, the auxiliary deflector roll


97


is disposed so as to be movable forward and backward integrally with the upper guide means


96


, and increases the angle of deflection of the band plate


98


from the upper deflector roll


92


.




The above-mentioned lower deflector roll


91


, upper deflector roll


92


, entrance guide means


93


, lower guide means


94


, upper guide means


96


, and auxiliary deflector roll


97


together constitute a deflector device


90


according to the present embodiment. The other constitutions are the same as in the first embodiment, and a detailed explanation for them will be omitted by reference to the first embodiment.




According to such a deflector device


90


, as explained earlier, the horizontal spacing w


2


between the front end of the upper guide means


96


and the upper deflector roll


92


is set to be slightly greater than the thickness, t, of the band plate


98


(i.e., t+several millimeters), and the front end of the downward guide surface


96




a


of the upper guide means


96


is positioned at the height h


2


which is larger than the aforementioned height h


1


. Thus, as shown in

FIG. 10

, even if the front end of the band plate


98


being fed at a high speed from the rolling equipment warps upward, it becomes more difficult, than in the aforementioned embodiment, for this front end to enter the horizontal spacing w


2


between the front end of the upper guide means


96


and the upper deflector roll


92


. Instead, the front end can be positioned more reliably below the downward guide surface


96




a


of the upper guide means


96


. Consequently, the front end of the band plate


98


can be guided further reliably to the wrapping entrance of the mandrel


101


or


102


at the winding start position


100




a.






Once the band plate


98


begins to be wound by the mandrel


101


, a wrapping device


104


is retreated as shown in FIG.


11


. With the mandrel


101


being driven to wind the band plate


98


, a circular support frame


103


(see

FIG. 14

) is turned to move the mandrel


101


to a winding completion position


100




b


(see FIG.


12


). At the same time, an empty mandrel


102


at the winding completion position


100




b


is moved to the winding start position


100




a


. As shown in

FIG. 12

, the band plate


98


is wound onto the mandrel


101


while being caused to run in a deflected manner in an upwardly inclined direction under the action of the upper deflector roll


92


. As shown in

FIG. 13

, on the other hand, the wrapping device


104


is advanced to the original operating position, and set again. In this condition, the auxiliary deflector roll


97


of the deflector device


90


contacts a lower surface of the band plate


98


being wound, pushing the band plate


98


upward. Thus, the band plate


98


is deflected so that the large frame


105




a


and the upper guide means


96


do not impede the travel of the band plate


98


.




Then, upon sensing of a predetermined winding length of the band plate


98


on the mandrel


101


at the winding completion position


10




b


, the band plate


98


is cut with a cutter (shear) which is not shown. A preceding band plate


98


is wound onto the mandrel


101


at the winding completion position


10




b


, while the front end of a succeeding band plate


98


is guided by the deflector device


90


to a wrapping entrance of the mandrel


102


at the winding start position


100




a


, and wound onto the mandrel


102


(see FIG.


14


). Subsequently, the same action as above is repeated.




As stated earlier, the horizontal spacing w


2


between the front end of the upper guide means


96


and the upper deflector roll


92


is set to be slightly greater than the thickness, t, of the band plate


98


(i.e., t+several millimeters), and the front end of the downward guide surface


96




a


of the upper guide means


96


is positioned at the height h


2


which is greater than the aforementioned height h


1


. In so setting, the auxiliary deflector roll


97


is provided so that the large frame


105




a


and the upper guide means


96


do not impede the travel of the band plate


98


. By this measure, the angle of deflection of the band plate


98


from the upper deflector roll


92


is increased.




According to the above deflector device


90


, therefore, even if the front end of the band plate


98


warps upward, the front end of the band plate


98


can be guided more reliably, than in the aforementioned embodiment, to the wrapping entrance of the mandrel


101


or


102


at the winding start position


100




a


. Hence, the band plate


98


can be continuously wound more reliably.




[Seventh Embodiment]





FIG. 15

is a schematic side view of a band plate winding system showing a seventh embodiment of the present invention.




In

FIG. 15

, the reference numeral


110


denotes a roll type wrapping device disposed in combination with a carrousel type winder


210


. The wrapping device


110


comprises a pair of arcuate lower large frames


113


, a pair of arcuate lower medium frames


114


and a pair of arcuate lower small frames


115


having one end pivotably supported on a support shaft


111


so as to be movable toward and away from a mandrel


212


at a winding start position


210




a


below a pass line of a band plate


200


; an upper frame


116


having one end pivotably supported on a support shaft


112


so as to be movable toward and away from the mandrel


212


at the winding start position


210




a


above the pass line of the band plate


200


; a unit roll


117


, a unit roll


118


, a unit roll


119


and a unit roll


120


supported on the frames


113


to


116


, respectively; cylinders


121


to


124


for moving the frames


113


to


116


back and forth about the support shafts


111


and


112


, namely, for moving the frames


113


to


116


to an operating position indicated by a solid line and a retracted position indicated by a chain line; an arm


125


pivotably supported by the lower large frame


113


to pivotably support the unit roll


117


; a small cylinder


126


for pivoting the arm


125


to finely adjust the position of the unit roll


117


; a wrapping guide arm


127


pivotably supported by a front end side of the lower large frame


113


; a small cylinder


128


for pivoting the wrapping guide arm


127


to finely adjust its position; an arm


129


pivotably supported by the upper frame


116


to pivotably support the unit roll


120


; and a small cylinder


130


for pivoting the arm


129


to finely adjust the position of the unit roll


120


.




At a front end of the lower medium frame


114


, lower guide means


131


is provided. At a band plate


200


entry side of the lower guide means


131


, entrance guide means


132


is independently disposed. According to the present embodiment, the wrapping guide arm


127


, small cylinder


128


, etc. constitute winding guide means.




The band plate


200


winding action of the carrousel type winder


210


combined with the roll type wrapping device


110


is described below.




The frames


113


to


116


and unit rolls


117


to


120


of the wrapping device


110


are each set at a solid line position opposed to the mandrel


212


of the winder


210


. Then, when the band plate


200


is fed from rolling equipment, the mandrel


212


and the unit rolls


117


to


120


are driven and rotated in a winding direction to wind the band plate


200


around the mandrel


212


.




Along with the winding of the band plate


200


around the mandrel


212


, the frames


113


to


116


move to positions outside a locus of revolution of the mandrel


212


(i.e., to positions indicated by chain lines) according to the turning of a circular support frame


211


. In accordance with the turning of the circular support frame


211


in a direction of an arrow A, the mandrel


212


moves to a winding completion position


210




b


while being driven to perform winding. During this action, an empty mandrel


213


at the winding completion position


210




b


moves to the winding start position


210




a.






At this time, the upper frame


116


moves to an upper retracted position (indicated by a chain line). The band plate


200


from the rolling equipment is deflected in an upwardly inclined manner at a pinch roll


203


, and wound round the mandrel


212


at the winding completion position


210




b.






Then, the frames


113


to


116


are each set again at the original operating position (indicated by a solid line) opposed to the mandrel


213


. Simultaneously, the unit roll


120


on the upper frame


116


contacts an upper surface of the band plate


200


, and is set at the original operating position (indicated by a solid line) while pushing the band plate


200


downward.




Upon sensing of a predetermined winding length of the band plate


200


, the band plate


200


is cut with a cutter


202


. A preceding band plate


200


is wound onto the mandrel


212


at the winding completion position


210




b


. Whereas the small cylinder


128


of the wrapping guide arm


127


and the small cylinder


130


of the arm


129


are actuated synchronously, whereupon the unit roll


120


and the wrapping guide arm


127


act cooperatively, thereby winding a succeeding band plate


200


round the mandrel


213


.




That is, the unit roll


120


on the upper frame


116


enables the band plate


200


to be deflected in an upwardly inclined direction, and also the band plate


200


to be directed in a different direction.




Thus, even when the band plate


200


is wound round the mandrel


212


of the winder


210


, while the wrapping device


110


is reset around the other empty mandrel


213


, the band plate


200


is no more damaged. Besides, it becomes possible to wind the rear end of the preceding band plate


200


on the winding completion position


210




b


side, and the front end of the succeeding band plate


200


on the winding start position


210




a


side, reliably in a divided manner.




Furthermore, the unit roll


120


to be located at the upper winding entrance of the mandrel


213


is supported by the upper frame


116


. Thus, the length of the lower large frame


113


can be shortened, so that the range of movement of the lower large frame


113


during retraction can be decreased. Hence, the diameter of revolution of the mandrel


212


or


213


according to the turn of the circular support frame


211


can also be decreased, so that the diameter of the circular support frame


211


can be reduced.




If the maximum diameter of a coil taken up by the mandrel


212


or


213


is a constant value of 2.1 m, for example, the diameter of revolution of the mandrel


212


or


213


according to the turn of the circular support frame


211


needs to be set at about 2.7 m in the case of the conventional system. According to the present embodiment, on the other hand, the diameter of revolution of the mandrel


212


or


213


according to the turn of the circular support frame


211


may be about 2.3 m. Thus, the circular support frame


211


of the carrousel type winder


210


can be reduced by about 15% compared with the conventional system.




[Eighth Embodiment]





FIG. 16

is a side view of an essential part of a band plate winding system showing an eighth embodiment of the present invention.




As shown in

FIG. 16

, first guide means


140


for guiding a front end of a band plate


200


from rolling equipment to a wrapping entrance of a mandrel


212


or


213


is provided at a front end portion of the upper frame


116


indicated in the preceding embodiment.




The first guide means


140


comprises a moving guide plate


141


having one end attached pivotably to a front end of the upper frame


116


and extending toward the rolling equipment; a tilting small cylinder


142


connected by a shaft between the other end side of the moving guide plate


141


and the upper frame


116


; and a fixed guide plate


143


fixed to the upper frame


116


in a manner continued from a base end of the moving guide plate


141


.




With the above-described wrapping device, the band plate


200


can be reliably guided to the mandrel


212


by the moving guide plate


141


and fixed guide plate


143


of the first guide means


140


. Furthermore, the small cylinder


142


is actuated to lift the moving guide plate


141


(to a chain line position in

FIG. 16

) and move the upper frame


116


to a retracted position. By so doing, the first guide means


140


can be held at a position at which it does not impede the movement of the band plate


200


from a pinch roller


203


toward the mandrel


212


at a winding completion position


210




b


. When the mandrel


212


has moved to the winding completion position


210




b


, therefore, the first guide means


140


does not contact the band plate


200


being wound, and damage to the band plate


200


can be prevented.




The upper frame


116


is pushed outward to an operating position (indicated by a solid line) to guide a front end of a cut band plate


200


toward the mandrel


213


located at a winding start position


210




a


. At this time, the moving guide plate


141


is brought to a suitable inclined or parallel posture relative to a pass line of the band plate


200


. By this measure, the front end of the band plate


200


can be guided reliably to a wrapping entrance of the mandrel


213


.




[Ninth Embodiment]





FIG. 17

is a side view of an essential part of a band plate winding system showing a ninth embodiment of the present invention.




As shown in

FIG. 17

, second guide means


150


opposed from above to a pass line of a band plate


200


is pivotably disposed on an entry side of the first guide means


140


in the preceding embodiment, i.e., between a rolling equipment side and the first guide means


140


, so as to be continued from the first guide means


140


.




The second guide means


150


comprises a moving guide plate


151


which has one end attached upwardly and downwardly pivotably to a stand or the like of a pinch roll


203


above an upwardly inclined pass line of the band plate


200


heading from the pinch roll


203


toward a mandrel


213


at a winding completion position


210




b


, and which extends to a position close to or overlapping an entry-side end of the first guide means


140


; and a tilting small cylinder


152


connected by a shaft between the other end side of the moving guide plate


151


and an upper fixed structure.




With the above-described wrapping device, the band plate


200


can be further reliably guided to a mandrel


212


by the first guide means


140


and the second guide means


150


. Besides, a small cylinder


142


of the first guide means


140


is actuated to lift a moving guide plate


141


and move an upper frame


116


to a retracted position. Then, the small cylinder


152


of the second guide means


150


is actuated to lift the moving guide plate


151


for a constant stroke in an inclined manner. By so doing, the guide means


140


and


150


can be held at positions at which they do not impede the movement of the band plate


200


from the pinch roller


203


toward the mandrel


212


at the winding completion position


210




b


. When the mandrel


212


has moved to the winding completion position


210




b


, therefore, the guide means


140


and


150


do not contact the band plate


200


being wound, and damage to the band plate


200


can be prevented.




When the moving guide plate


151


of the second guide means


150


is moved downward, the front end of the moving guide plate


151


is positioned below the front end of the moving guide plate


141


of the first guide means


140


. By this measure, the front end of a cut band plate


200


can be guided to a wrapping entrance of the mandrel


213


further reliably and safely.




[Tenth Embodiment]





FIG. 18

is a side view of an essential part of a band plate winding system showing a tenth embodiment of the present invention.




As shown in

FIG. 18

, at a front end of the wrapping guide arm


127


in the previous embodiment, there are provided a wrapping guide plate


161


facing a mandrel


212


or


213


, and a deflecting guide plate


162


facing a band plate


200


which deflects in an upwardly inclined direction at a unit roll


120


of an upper frame


116


set at an operating position. At a portion of the wrapping guide arm


127


which faces an arm


125


, a safety plate


163


, as interlocking means, is provided so as to face the arm


125


with a slight gap present between the safety plate


163


and the arm


125


.




With the above-described wrapping device, there may be a case in which after the front end of the band plate


200


passes along the wrapping guide plate


161


, a small cylinder


128


does not work for an unexpected reason when it is attempted to move the wrapping guide arm


127


backward by driving the small cylinder


128


. Even in this case, as the arm


125


recedes by the action of the small cylinder


126


, the safety plate


163


is pushed by the arm


125


to move the wrapping guide arm


127


backward. That is, the wrapping guide arm


127


recedes in association with the backward movement of the unit roll


120


of the upper frame


116


.




Hence, even if the small cylinder


128


does not act for an unexpected reason when its driving is to move the wrapping guide arm


127


, the front end of the band plate


200


can be prevented from jamming between the wrapping guide plate


161


and the mandrel


213


.




[Eleventh Embodiment]





FIG. 19

is a side view of an essential part of a band plate winding system showing an eleventh embodiment of the present invention.




As shown in

FIG. 19

, a unit roll


120


′ of the upper frame


116


in the previous embodiment is larger in diameter than other unit rolls


117


to


119


.




Thus, a band plate


200


contacts a mandrel


212


or


213


at the first entrance on a large roll curved surface of the unit roll


120


′, so that the front end of the band plate


200


can be drawn in more reliably, than in the case of the unit roll


120


used in the previous embodiment, along an outer peripheral surface of the mandrel


212


or


213


. Moreover, the front end of the band plate


200


can be reliably brought upward or downward in an assorted manner.




Furthermore, even when the gap between a wrapping guide plate


161


of a wrapping guide arm


127


and the mandrel


212


or


213


is rendered large, the front end of the band plate


200


can be reliably brought upward or downward in an assorted manner. Hence, jamming of the front end of the band plate


200


can be prevented further reliably.




[Twelfth Embodiment]





FIG. 20

is a sectional view of a small cylinder for a unit roll support arm showing a twelfth embodiment of the present invention.

FIG. 21

is a side view showing a state of mounting of the small cylinder.




In

FIG. 20

, the reference numeral


220


denotes a small cylinder for backing up a unit roll


259


shown in the tenth and eleventh embodiments.




The small cylinder


220


is composed of a rod-side cylinder cover


221


, an intermediate cover


222


, a head-side cover


223


, and two cylinder barrels


224


,


225


provided in series between these covers. The reference numeral


226


denotes a rod. The reference numeral


227


denotes a piston. The reference numeral


228


denotes a piston stroke oil chamber inside the cylinder barrel


224


. The reference numeral


229


denotes a through-hole inside the intermediate cover


222


. The reference numeral


230


denotes a head-side cushioning oil chamber formed in the cylinder barrel


225


so as to communicate with the piston stroke oil chamber


228


via the through-hole


229


. The reference numeral


231


denotes a longitudinal shaft for support of the small cylinder


220


on a large frame.




The stroke length, S, of the piston stroke oil chamber


228


is the same as the length in the conventional system that is the sum of a necessary forward or backward movement amount, L, of the unit roll


259


during winding of a band plate and an allowance α. The head-side cushioning oil chamber


230


has a length over which to contain an amount of a pressure oil enough to cushion maximum impact force that the unit roll


259


undergoes from a band plate


200


side.





FIG. 21

shows a case in which the small cylinder


220


produced on an actual machine basis with the above-mentioned constitution is applied onto a lower large frame


233


of the roll type wrapping device in the tenth and eleventh embodiments.




The small cylinder


220


of the above-mentioned constitution can be used in place of the small cylinder


24




b


in the wrapping device of the first embodiment. In either case, the small cylinder


220


can be mounted on the large frame whose shape is unchanged or slightly changed.




Provision of the intermediate cover


222


between the piston stroke oil chamber


228


and the impact force cushioning oil chamber


230


cab reinforce the intermediate portion of the elongated cylinder


220


. Thus, the cylinder


220


can be mounted on the lower large frame safely at the intermediate cover


222


.




According to this constitution, the pressure oil chamber containing an amount of a pressure oil capable of cushioning maximum impact force imposed on the unit roll


259


is provided on the head side of the piston rod of the small cylinder


220


. Thus, all impact forces, high and low, which are imposed on the unit roll


259


on the lower large frame from the band plate


200


side during winding of the band plate


200


onto the mandrel


212


can be absorbed and cushioned by the backup small cylinder


220


always safely. Hence, failure of the system and occurrence of a defective product due to impact force during band plate winding can be dissolved, and productivity increased.




[Thirteenth Embodiment]





FIG. 22

is a side view of two frame portions on an upstream side of a rolling equipment line showing a thirteenth embodiment of the present invention.

FIG. 23

is a front view of the frame portions in FIG.


22


.

FIG. 24

is an enlarged side view of the III portion in FIG.


22


.

FIG. 25

is a front view taken on line IV—IV of FIG.


24


.

FIG. 26

is an explanation view of the operation of the frame portions in FIG.


22


.

FIG. 27

is another explanation view of the operation of the frame portions in FIG.


22


.




In

FIG. 22

, the reference numeral


301


denotes a mandrel resting statically at the winding start position


301




a


in the tenth and eleventh embodiments. The reference numerals


362


,


363


denote two (i.e., upper and lower) rolls facing a side surface, on a rolling line upstream side, of the mandrel


301


. The reference numeral


352


denotes a support shaft shared by a large frame


113


(see

FIG. 18

) below the mandrel


301


. The reference numeral


311


denotes a support shaft additionally provided on a rolling line upstream side of the support shaft


352


. The reference numeral


312


denotes a frame for supporting the unit roll


362


, the frame having a lower end pivotably supported by the support shaft


311


. The reference numeral


313


denotes a frame for supporting the unit roll


363


, the frame having a lower end pivotably supported by the support shaft


352


. The support shaft


352


is fixedly supported by a bearing


352




a


, while the support shaft


311


is rotatably provided on a bearing


311




a


via a bearing.




The support frame


312


is provided externally so as to be pivotable by having an upper central rear portion connected to a rod end of a cylinder


367


. The support frame


313


is provided internally so as to be pivotable by having an upper central rear portion connected to a rod end of a cylinder


368


which passes through an opening portion


314


of the support frame


312


, as shown in

FIGS. 22 and 23

.




In the internal support frame


313


, lower rear surface portions of both side plates thereof which support the unit roll


363


and a band plate wrapping guide member


365


are each a concave curved surface portion


315


in a panel-like form so as not to interfere with the support shaft


311


at an adjacent position during retreating movement.




In the external support frame


312


, upper portions of both side plates which support the unit roll


362


and a band plate wrapping guide member


364


are each shaped like a panel. In a lower portion between both side plates, the opening portion


314


is formed. An upper half of the support frame


313


can come in and go out of the opening portion


314


.




At an inner edge portion of both side plates of the external support frame


312


, a concave curved surface portion


316


is formed. The concave curved surface portion


316


is designed such that when the internal support frame


313


is moved to a set retreat position with the external support frame


312


being set at a band plate winding position, the external support frame


312


does not contact or interfere with the unit roll


363


of the internal support frame


313


.




In

FIGS. 24 and 25

, a shaft-attached portion at a lower end of the internal support frame


313


is constituted such that a boss portion fitted onto an outer surface of a bearing on the support shaft


352


has a semi-arcuate split piece


317


. The semi-arcuate split piece


317


is joined to the boss portion on the frame


313


body side by screws


318


while sandwiching the bearing on the support shaft


352


, whereby the frame


313


can be fixed detachably to the support shaft


352


.





FIG. 26

shows a state in which after the aforementioned two pivotable frames


312


and


313


upstream of the mandrel are set in the band plate winding position, only the internal pivotable frame


313


is moved to the set retreat position.




When a band plate


300


begins to be wound, and is piled up on the mandrel


301


, the unit rolls


362


,


363


pressing the surface of the band plate


300


against the mandrel


301


at a constant oil pressure are pushed back as the diameter of the band plate increases. The band plate


300


piled on the mandrel


301


reaches a set coil diameter (thickness)


300




a


, all the unit rolls including the unit rolls


362


,


363


are separated from the band plate surface, and moved to a predetermined retreat position.





FIG. 26

shows a case in which while the unit roll


362


of the external frame


312


is in contact with the coil surface, the unit roll


363


of the internal frame


313


precedes, and moves to the retreat position.




The unit roll


363


of the internal frame


313


, as shown in

FIGS. 22 and 26

, sets as a predetermined retreat position a position in the concave curved surface


316


of the external frame


312


held in a condition in contact with the coil surface. By detecting its moving distance or the like by means of a detector, the unit roll


363


is allowed to move to the retreat position without contacting the external frame


312


.




In the state of

FIG. 26

, at this time, clearances C


1


, C


2


in agreement with the pivoting distance of the external frame


312


corresponding to the coil thickness


300




a


are retained between the concave curved surface portion


315


of the internal frame


313


and the support shaft


311


, and between the concave curved surface portion


316


of the external frame


312


and the unit roll


363


, respectively. Of these clearances, the clearance C


2


is set to be kept minimal when only the external frame


312


is pivoted and returned to the wrapping position relative to the empty mandrel


301


, as shown in FIG.


22


.




According to the above constitution, when only the internal frame


313


is moved to the retreat position in a preceding manner, and when only the external frame


312


is returned to the wrapping position relative to the empty mandrel


301


, collision and interference between the unit roll


363


on the internal frame


313


and the external frame


312


are resolved.




Next,

FIG. 27

shows a case in which the external frame


312


and the internal frame


313


are synchronously moved to a retreat position. The external frame


312


sets as a retreat position a position at which the external frame


312


is apart by a certain distance, as illustrated, from the surface of the band plate wrapping thickness


300




a


on the mandrel


301


. With its moving distance or the like being detected by a detector, the external frame


312


is moved to the retreat position. At this time, the internal frame


313


is moved to the same retreat position as shown in

FIG. 26

, and stopped there. The clearance C


1


between the concave curved surface portion


315


of the internal frame


313


and the support shaft


311


of the external frame


312


is kept minimal in this state.




According to the above constitution, when the external frame


312


and the internal frame


313


are synchronously moved from the retreat position in

FIG. 27

to the band plate wrapping position, collision and interference between the external frame


312


and the unit roll


363


on the internal frame


313


no longer occur, even if only the external frame


312


moves to the band plate wrapping position in a preceding manner.




With both frames


312


and


313


having moved to the retreat position, the mandrel


301


during winding of the band plate


300


revolves clockwise according to the turning of the circular support frame while winding the band plate


300


. In this manner, this mandrel


301


is replaced by an empty mandrel


301


located at the winding completion position.




Besides, the attachment boss portion of at least the internal frame


313


for attachment to the support frame


352


is shaped like the semi-arcuate split form


317


, and is adapted to be detachably secured to the support frame


352


by the screws


318


. Thus, attachment and detachment of the internal frame


313


become markedly easy for maintenance, etc.




According to the above-described embodiment, at the time of the switching movement of the two pivotable frames


312


and


313


for support of the unit rolls


362


and


363


of the mandrel


301


to the band plate wrapping position and the retreat position, collision and interference between both frames


312


and


313


are resolved. Hence, damage to the machine and interruption of operation due to their collision or interruption can be eliminated. Furthermore, a system easy to assemble and maintain can be provided.




[Fourteenth Embodiment]





FIG. 28

is a side view of an essential part of a band plate winding system showing a fourteenth embodiment of the present invention.

FIG. 29

is a front view taken on line V—V of FIG.


28


.

FIG. 30

is a side view of the band plate winding system in FIG.


28


.




In

FIGS. 28

to


30


, the reference numeral


401


denotes a roller table of a rolling equipment line,


402


denotes a plate cutter on a delivery side of the line,


403


denotes a pinch roll,


404


denotes a rolled band plate,


406


denotes a carrousel type winder, and


450


denotes a roll type wrapping device placed in combination with the carrousel type winder


406


. The carrousel type winder


406


and the roll type wrapping device


450


constitute a band plate winding system.




The carrousel type winder


406


is composed of a circular support frame


407


placed at a side portion on the delivery side of the line so as to be rotationally drivable, and two mandrels


408


,


408


supported at symmetrical positions of the circular support frame


407


individually rotationally drivable about a horizontal axis. The reference numeral


408




a


denotes a winding start position of the mandrel


408


, while the reference numeral


408




b


denotes a winding completion position of the mandrel


408


.




The wrapping device


450


has a pair of arcuate piece-like lower large frames (pivoting frames)


433


, a pair of arcuate piece-like medium frames (pivoting frames)


454


, and a pair of arcuate piece-like small frames (pivoting frames)


455


, each frame having one end supported pivotably on a support shaft


452


on a base


451


. On the pair of lower large frames


433


, a second panel-like arm


410


and a first panel-like arm


411


having both ends pivotably supported are mounted. On front end portions of the second panel-like arm


410


and the first panel-like arm


411


, wrapping guide members


461


,


460


are provided. On the second panel-like arm


410


, a unit roll


459


is also provided. On the pair of medium frames


454


and the pair of small frames


455


, respectively, a unit roll


462


and a unit roll


463


having both ends supported are provided, and wrapping guide members


464


,


465


are also provided. To the frames


433


,


454


,


455


, cylinders


466


,


467


,


468


to be moved back and forth around the support shaft


452


are connected. To the second panel-like arm


410


and the first panel-like arm


411


, small cylinders


441


,


470


for moving toward and away from a mandrel side on the frames


433


are connected.




An upper frame


434


has one end pivotably supported by a horizontal shaft


436


on an upper base


435


, and has the other end on which a panel-like arm


438


is provided so as to be pivotable by a small cylinder


439


. To an intermediate portion of the upper frame


434


, a cylinder


437


is connected. Upon extension and contraction of the cylinder


437


, the upper frame


434


is pivoted so as to be movable toward and away from the mandrel


408


. On the panel-like arm


438


, an upper-side unit roll


458


having both ends supported is independently provided.




The circular support frame


407


and the mandrels


408


,


408


are moved in a direction of an arrow A, with the frames


433


,


434


,


454


,


455


of the wrapping device


450


being open at positions shown by one-dot chain lines. In a state in which an empty mandrel


408


is stopped at a winding start position


408




a


, the unit rolls


458


,


459


,


462


,


463


and the wrapping guide members


460


,


461


,


464


,


465


are set, as shown by solid lines, around this mandrel


408


. At this time, winding of a rolled band plate


404


is started.




After wrapping of the band plate


404


around the mandrel


408


is confirmed, the frames


433


,


434


,


454


,


455


of the wrapping device


450


become open at the positions shown by the one-dot chain lines. In this state, the circular support frame


407


revolves in the direction of arrow A. According to this revolution, the mandrel


408


also moves along the periphery of the circular support frame


407


while winding the band plate


404


. When the mandrel


408


stops at the winding completion position


408




b


, winding of the band plate


404


is finished. Then, winding of the band plate


404


around the mandrel


408


at the winding start position


408




a


is repeated by the same procedure as described above.




According to the present embodiment, as shown in

FIGS. 28 and 29

, the second panel-like arm


410


is composed of a U-shaped panel-like arm body, and has shaft-attached portions


410




a


at protruding ends of its U shape. The first panel-like arm


411


is composed of a roughly I-shaped panel-like arm body, and has shaft-attached portions


411




a


at its lower jutting portions. On its upper jutting portion, the wrapping guide member


460


is provided. The upper head side of the first panel-like arm


411


passes through a U-shaped space defined by the second panel-like arm


410


, and faces a surface of the mandrel


408


.




That is, the shaft-attached portions


410




a


of the second panel-like arm


410


are provided in a plane of projection of a head portion


411




b


of the first panel-like arm


411


at the winding start position, and the first panel-like arm


411


and the second panel-like arm


410


are constituted as above. Thus, the head side of the first panel-like arm


411


can pass between the shaft-attached portions


410




a


and


410




a


of the second panel-like arm


410


, and move toward and away from the mandrel


408


.




The shaft-attached portion


410




a


of the second panel-like arm


410


is supported on a fixing shaft


412


which is supported via a bearing


413




a


by a bearing


413


provided on the lower large frame


433


. The shaft-attached portion


411




a


of the first panel-like arm


411


is also supported via a bearing


413




a


by a bearing


413


provided on the lower large frame


433


.




According to the above constitution, the head side of the first panel-like arm


411


can freely move back and forth in the U-shaped space between the shaft-attached portions


410




a


of the second panel-like arm


410


. Thus, the length, including the shaft-attached portions


410




a


, of the second panel-like arm


410


can be designed freely, without interference with the first panel-like arm


411


. Also, the shaft-attached portion


410




a


of the second panel-like arm


410


can be supported on the lower large frame


433


in an outward open free space.




Thus, the center distance S between the unit roll


459


and the shaft-attached portion


410




a


of the second panel-like arm


410


can be made great. In addition, the shaft-attached portion


410




a


can be safely supported by the bearing


413


, etc. on the lower large frame


433


. Consequently, when a reaction force of the band plate is imposed on the unit roll


459


, the second panel-like arm


410


can pivot smoothly counterclockwise, so that concentration of stress on the shaft-attached portion


410




a


and damage thereto are resolved.




[Fifteenth Embodiment]





FIG. 31

is a front view of a band plate winding system showing a fifteenth embodiment of the present invention.

FIG. 32

is a side view taken on line VI—VI of FIG.


31


.

FIG. 33

is a side view taken on line VII—VII of FIG.


31


.




As shown in

FIG. 32

, a wrapping device


505


at a winding start position


504




a


is provided with four unit rolls


516




a


,


516




b


,


516




c


,


516




d


. The unit roll


516




a


on an upper side has both ends supported on a frame


518




a


turning upward about a support shaft


517




a


. The unit rolls


516




b


,


516




c


,


516




d


on a lower side each have both ends supported on frames


518




b


,


518




c


and


518




d


turning downward about support shafts


517




b


and


517




d.






As shown in

FIG. 31

, a detachable mandrel front end support device


520


is provided on a support base


521


on a work side W


s


of the wrapping device


505


. The mandrel front end support device


520


has a contour formed in a rail sectional shape. Each unit roll driving system


522


is placed along a side portion of the mandrel front end support device


520


, and is placed between the shaft ends of the unit rolls


516




a


to


516




d


and each support base


523


apart on the work side.




As shown in

FIGS. 31 and 33

, the mandrel front end support device


520


is supported on two track elements


524


provided parallel in a mandrel shaft direction on the support base


521


, and is connected to a horizontal driving cylinder


525


provided on the support base


521


. Upon driving of the cylinder


525


, the mandrel front end support device


520


is moved in a switching manner to a mounting position or a dismounting position in an axial direction of a mandrel


504


. The mandrel front end support device


520


has a lower portion spreading over and spanning the two track elements


524


. A portion of the mandrel front end support device


520


passing between the unit rolls


516




b


and


516




c


forms a waist portion with a narrow width, and extends upward. An upper portion of the mandrel front end support device


520


forms a transverse cylindrical mandrel front end receiving portion. The entire contour of the mandrel front end support device


520


is in the shape of a rail section.




Each driving system


522


for the unit roll is composed of a motor


526


placed on the support base


523


apart on the work side, and an extendable transmission shaft


528


connected between an output shaft end of the motor


526


and a shaft end of the unit roll via universal joints


527


.





FIG. 33

shows an arrangement relationship of the mandrel front end support device


520


and the unit roll driving systems


522


as viewed sideways. The four driving motors


526


are arranged at positions near the axes of the support shafts


517




a


,


517




b


and


517




d


for the unit rolls. The transmission shafts


528


and the four unit rolls


516




a


,


516




b


,


516




c


,


516




d


connected to the driving motors


526


are each arranged in such a manner as to keep a clearance from the upper portion and the waist portion of the mandrel front end support device


520


.




At a winding completion position


504




b


, a mandrel front end support device


510


, and a carrier trolley


511


for coil extraction are provided. The other constitutions are the same as in the first embodiment, and a detailed explanation therefor is omitted by reference to the first embodiment.




The action of the wrapping device


505


of the above-described constitution will now be described. The mandrel front end support device


520


is moved, by extension and contraction of the driving cylinder


525


, to a position shown by a solid line and a position shown by a chain line in FIG.


31


. Upon contraction of the driving cylinder


525


, the mandrel front end support device


520


moves to the solid line position apart from the front end of the mandrel


504


, and enters a wait state. In accordance with the contraction of the cylinder, the unit rolls


516




a


,


516




b


,


516




c


,


516




d


are each moved backward in a direction of an arrow to a position apart from the mandrel


504


, and put on standby. In this state, a circular support frame


503


is turned, whereby the mandrel


504


can be freely made to make a revolving movement between the winding start position


504




a


and the winding completion position


504




b.






With an empty mandrel


504


being moved to and stopped at the winding start position


504




a


, the unit rolls


516




a


,


516




b


,


516




c


,


516




d


are sent to face a peripheral surface of the empty mandrel


504


. Upon extension of the driving cylinder


525


, the mandrel front end support device


520


is brought to the chain line position to support the front end of the mandrel, completing preparations for winding of a band plate. At this time, the unit rolls


516




a


,


516




b


,


516




c


,


516




d


and the transmission shafts


528


remain spaced from the mandrel front end support device


520


, and can move between the solid line position and the chain line position, without touching the mandrel front end support device


520


.




In this state, the mandrel


504


and the unit rolls


516




a


,


516




b


,


516




c


,


516




d


are rotationally driven, and a band plate is fed from the rolling line to a space between the unit rolls


516




a


,


516




b


and the mandrel


504


, whereupon the band plate is wrapped about the mandrel


504


. During rotation of the unit rolls


516




a


,


516




b


,


516




c


,


516




d


, the transmission shafts


528


rotate while keeping spaced from the mandrel front end support device


520


. Thus, the interference of the unit roll driving system


522


with the mandrel front end support device


520


is resolved.




At the start of winding of the band plate, both ends of the mandrel


504


are supported. Thus, warpage of the front end of the mandrel


504


due to impact by the incoming band plate at the start of winding is resolved, and deviated winding of the band plate in the axial direction is also eliminated.




After wrapping of the band plate around the mandrel


504


is confirmed, the mandrel front end support device


520


is moved backward to the solid line position upon contraction of the driving cylinder


525


. Also, the unit rolls


516




a


,


516




b


,


516




c


,


516




d


are withdrawn to retracted positions. In this state, the mandrel


504


at the winding start position


504




a


continues to wind the band plate, and is moved revolvingly to the winding completion position


504




b


in accordance with the turning of the circular support frame


503


. Synchronously with this movement, the empty mandrel


504


that has a coil taken out at the winding completion position


504




b


is moved to the winding start position


504




a.






At the winding start position


504




a


, the mandrel front end support device


520


is brought to a position at which it supports the front end of the empty mandrel


504


. Also, the unit rolls


516




a


,


516




b


,


516




c


,


516




d


are each brought to a position opposed to the mandrel


504


to be ready for next winding of the band plate. At the winding completion position


504




b


, the front end of the mandrel


504


is supported by the front end support device


510


to perform winding of the band plate. At completion of winding, a front end of the band plate cut on the rolling line is supplied to the empty mandrel


504


on standby. In this manner, wrapping of a next band plate is repeated, and extraction of a coil that has been wound at the winding completion position


504




b


is repeated.




According to the foregoing band plate winding system, even when the unit roll driving systems


522


of the wrapping device


505


are provided on the work side of the rolling line, the mandrel front end support device


520


can be safely placed at the winding start position


504




a


without its interference with the unit roll driving system. Thus, a failure in winding of a band plate by the winder can be resolved.




[Sixteenth Embodiment]





FIG. 34

is a front view of a band plate winding system showing a sixteenth embodiment of the present invention.

FIG. 35

is a side view taken on line VIII—VIII of FIG.


34


.




To a work-side pivoting frame


518




b


for supporting the unit roll


516




b


in the previous embodiment, a parallel partition wall


530


is integrally joined, with spacing, by a joining plate


531


, as shown in

FIGS. 34 and 35

. A mandrel front end support device


520


is provided on a support base in a spacing portion between the pivoting frame


518




b


and the partition wall


530


.




The reference numeral


532


denotes a driving system for the unit roll


516




b


, the driving system being constituted to have the partition wall


530


as an intermediate support point. The unit roll driving system


532


comprises upper and lower connecting boxes


534


,


535


each containing a bevel gear


533


and fixed to an outer surface of the partition wall


530


; a transmission shaft


536




c


connected between the upper connecting box


534


and the unit roll


516




b


via universal joints


527


and nearly parallel to an axis of a mandrel; a transmission shaft


536




b


connected between the upper and lower connecting boxes


534


and


535


; and a transmission shaft


536




a


for connecting the lower connecting box


535


to a driving motor


526


. The shaft between the upper and lower connecting boxes


534


and


535


may be replaced by multi-stage transmission gears.




In

FIGS. 34 and 35

, only the driving system


532


for the unit roll


516




b


is shown, but the other unit rolls


516




a


,


516




c


and


516




d


can also be constituted in the same fashion.




With the above-described band plate winding system, a driving force of the driving motor


526


rotationally drives the unit roll via the transmission shafts


536




a


,


536




b


and


536




c


. At this time, the transmission shaft


536




c


is nearly parallel to the mandrel axis, or the upper connecting box


534


is situated slightly externally. This configuration makes it easy to retain the spacing between the transmission shaft


536




c


and the mandrel front end support device


520


at the time of driving of the driving system


532


and during turning of the unit roll


516




b


for retraction. Furthermore, the lower connecting box


535


can be placed near the unit roll


516




b


and a support shaft


517




b


for the support frame


518




b


. Thus, the angle of inclination of the transmission shaft


536




a


for advancing and retracting the unit roll becomes small. Consequently, the driving motor


526


can be located at a near position, and the driving system


532


can be constructed in a small size.




The present invention is not restricted to the above embodiments, and needless to say, various changes and modifications, such as those in the shapes and dimensions of the various members, can be made without departing from the gist of the invention.




Industrial Applicability




As described above, the band plate winding system of the present invention comprises a carrousel type winder having a plurality of individually driven mandrels on a circular support frame provided so as to be rotationally drivable in a vertical plane; and a roll type wrapping device for supporting a plurality of unit rolls provided so as to be movable forward and backward between a position surrounding the mandrel located at a winding start position of the winder and a retreat position. Thus, a band plate can be wound under high speed rolling to a degree comparable to that using a down coiler. Also, the scale of equipment, the size of an installation space, and the cost of equipment can be markedly decreased because of the concomitant use of the carrousel type winder. Hence, this band plate winding system is preferred for use in hot rolling equipment.



Claims
  • 1. A band plate winding system comprising:a carrousel winder having a plurality of individually driven mandrels on a circular support frame, said circular support frame being rotationally drivable in a vertical plane; a roll wrapping device for supporting a plurality of unit rolls each provided so as to be movable forward and backward between a position surrounding the mandrel located at a winding start position of a winder and a position that does not surround the mandrel, a pressure plate located adjacent to each one of the unit rolls, the pressure plate and each one of the unit rolls are spaced apart along different portions of the circumference of the mandrel, the pressure plate applies pressure directly to the mandrel by direct physical contact, wherein a unit roll driving device for rotationally driving each of the plurality of unit rolls comprises transmission means which transmits a rotational force of a driving motor in a direction nearly perpendicular to an axis of the unit roll and which pivots integrally with a frame for supporting the unit roll; one connector portion of the transmission means is connected by a transmission shaft to an end of the unit roll opposed to the one connector portion; and the driving motor is connected to another connector portion of the transmission means.
  • 2. The band plate winding system of claim 1 whereinthe unit roll driving device for rotationally driving each of the plurality of unit rolls comprises: a parallel plate provided, outside and apart from the frame for supporting the unit roll, so as to turn integrally with the frame; at least two bevel gear boxes provided on the parallel plate; a transmission shaft for connecting these bevel gear boxes together; a second transmission shaft for connecting one of the bevel gear boxes to the end of the unit roll opposed to the one bevel gear box; and a third transmission shaft for connecting another bevel gear box to the driving motor via universal joints.
  • 3. The band plate winding system of claim 2, wherein a pair of bevel gears in a bevel gear box have a speed increasing gear ratio.
  • 4. The band plate winding system of claim 1 whereinthe unit roll driving device for rotationally driving the plurality of unit rolls comprises: a gear support panel provided, outside and apart from the frame for supporting the unit rolls, so as to pivot integrally with the frame; multi-stage gears placed at a pivot center position on the gear support panel, at positions on nearly the same axes as the unit rolls, and between both of these positions, and mounted and supported on the gear support panel so as to mesh with each other; the driving motor is connected to a shaft of a gear placed at the pivot center position among the multi-stage gears, thereby rotationally driving this gear; and transmission shafts for connecting shafts of the gears, placed at the positions on nearly the same axes as the unit rolls among the multi-stage gears, to ends of the unit rolls corresponding to the shafts of the gears.
  • 5. The band plate winding system of claim 1 whereina deflector device for guiding a band plate to the winder comprises: an upper deflector roll disposed above a pass line of the band plate upstream of the winder; and upper guide means which is disposed forwardly and backwardly movably so as to be located above the pass line of the band plate between the winder and the upper deflector roll, and which has a lower surface whose upper deflector roll side can be positioned above a horizontal line in contact with a lower portion of the upper deflector roll, said lower surface of the upper guide means being an inclined surface sloping downward toward the winder.
  • 6. The band plate winding system of claim 5, further comprising an auxiliary deflector roll which is disposed so as to be movable forward and backward integrally with the upper guide means, and which increases an angle of deflection of the band plate from the upper deflector roll.
  • 7. The band plate winding system of claim 1, wherein the roll wrapping device for supporting the plurality of unit rolls is structured, so that of the plural unit rolls provided so as to be movable toward and away from the mandrel, a unit roll located above the mandrel is supported by an upper frame which moves toward and away from the mandrel from above the mandrel, while another unit roll is supported by a lower frame which moves toward and away from the mandrel from below a pass line of the band plate.
  • 8. The band plate winding system of claim 7, wherein first guide means for guiding a front end of the band plate to a wrapping entrance of the mandrel is provided on the upper frame.
  • 9. The band plate winding system of claim 8, wherein second guide means facing the pass line of the band plate from above is provided pivotably between a rolling equipment side and the first guide means.
  • 10. The band plate winding system of claim 7, further comprising interlocking means for moving wrapping guide means backward in association with a backward movement of the unit roll supported by the lower frame, said wrapping guide means being provided, on a front end side of the lower frame opposed to a front end of the upper frame, so as to be movable toward and away from the mandrel.
  • 11. The band plate winding system of claim 7, wherein the unit roll supported by the upper frame is larger in diameter than the unit roll supported by the lower frame.
  • 12. The band plate winding system of claim 1, wherein the roll wrapping device for supporting the plurality of unit rolls is structured so that a small cylinder for backup of a unit roll supported on a large frame via a panel arm among the plurality of unit rolls provided so as to be movable toward and away from a circumferential surface of the mandrel located at the winding start position has a built-in pressure oil chamber containing an amount of pressure oil enough to absorb and cushion maximum impact force which the unit roll undergoes.
  • 13. The band plate winding system of claim 12, whereinthe small cylinder for backup of the unit roll comprises: an oil chamber for piston stroke having a rod side connected to the panel arm and a cylinder side connected to a large frame side, and having a required length for extending and contracting a piston rod; and an oil chamber for impact force cushioning provided to communicate with a head side of the oil chamber for piston stroke.
  • 14. The band plate winding system of claim 13, wherein the oil chamber for piston stroke and the oil chamber for impact force cushioning are connected together via an intermediate cover portion, and communicate with each other through a flow path inside the intermediate cover portion.
  • 15. The hand plate winding system of claim 1 wherein the roll wrapping device for supporting the plurality of unit rolls comprises two unit roll support frames provided so as to derrick and pivot from an upstream side of a rolling equipment line about lower support shafts as centers of rotation until facing the mandrel at a wrapping start position, said two unit roll support frames being each in the form of a frame individually movable between a set mandrel facing position and a set retreat position without interference by each other.
  • 16. The band plate winding system of claim 15, wherein of the two unit roll support frames, the support frame for the upper unit roll is placed externally, while the support frame for the lower unit roll is placed internally, and a shape of the external support frame and a shape of the internal support frame are combined such that the internal support frame is movable to the retreat position when the external support frame has been brought to a band plate wrapping position at which the external support frame faces the mandrel.
  • 17. The band plate winding system of claim 15, wherein of the two unit roll support frames, at least an internally placed support frame for a lower unit roll is mounted detachably on the support shaft by a semi-arcuate divided boss portion.
  • 18. The band plate winding system of claim 1, whereinthe roll wrapping device for supporting the plurality of unit rolls supports the unit rolls on a plurality of pivoting frames which pivot so as to be moveable toward and away from a circumferential surface of the mandrel located at the winding start position; a first panel arm and a second panel arm are pivotably provided on at least one of the plurality of pivoting frames, said first panel arm having a band plate wrapping guide at a front end thereof, and said second panel arm having a second band plate wrapping guide at a front end thereof and being provided with a unit roll; and a pivot shaft of the second panel arm is placed in a plane of lateral projection of the first panel arm at the winding start position.
  • 19. The band plate winding system of claim 1, whereina driving shaft for each of the unit rolls is provided on a work side of a rolling equipment line; and a detachable mandrel front end support device is provided opposite a front end of the mandrel located at the winding start position, said mandrel front end support device having a sectional shape passing between the unit rolls facing a circumferential surface of the mandrel at the winding start position, and between unit roll driving systems, and said mandrel front end support device being movable parallel to an axis of the mandrel.
  • 20. The band plate winding system of claim 19, wherein the detachable mandrel front end support device is adapted to be movably engaged on track elements fixedly placed on a support base in parallel with the axis of the mandrel, and to be moved to a position, at which the detachable mandrel front end support device is attached to or detached from the front end of the mandrel, by driving means placed on the support base.
  • 21. The band plate winding system of claim 19, whereina parallel partition wall is provided, with the mandrel front end support device being sandwiched between the partition wall and a support frame for a unit roll, and pivots integrally with, but apart from, the support frame; and the unit roll driving systems are provided, with the partition wall serving as an intermediate support point.
  • 22. A bend plate winding system comprising:a carrousel winder having a plurality of individually driven mandrels on a circular support frame, said circular support frame being rotationally drivable in a vertical plane; a roll wrapping device for supporting a plurality of unit rolls each provided so as to be movable forward and backward between a position surrounding the mandrel located at a winding start position of a winder and a position that does not surround the mandrel, a pressure plate located adjacent to each one of the unit rolls, the pressure plate and each one of the unit rolls are spaced apart along different portions of the circumference of the mandrel, are effective to apply direct pressure to the mandrel, wherein each unit roll and each pressure plate have a face facing the mandrel and the distance between the center of the mandrel and each of the faces is equal.
Priority Claims (6)
Number Date Country Kind
9-325678 Nov 1997 JP
9-359139 Dec 1997 JP
10-5315 Jan 1998 JP
10-16510 Jan 1998 JP
10-109002 Apr 1998 JP
10-190781 Jul 1998 JP
Parent Case Info

This application is a divisional of co-pending Application No. 09/297/936, filed on Jul. 8, 1999 and for which priority is claimed under 35 U.S.C. § 120. Application No. 09/297,936 is the national phase of PCT International Application No. PCT/JP98/05309 filed on Nov. 26, 1998 under 35 U.S.C. § 371. The entire contents if each of the above-identified applications are hereby incorporated by reference. This application also claims priority of Application Nos 9-325678, 9-359139, 10-5315, 10-16510, 10-109002 and 10-190781, filed in Japan on Nov. 27, 1997, Dec. 26, 1997, Jan. 14, 1998, Jan. 29, 1998, Apr. 20, 1998, and Jul. 6, 1998, respectively under 35 U.S.C. § 119.

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5035373 Perrigo Jul 1991 A
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