Patent Application
20090029839
The present invention relates to a soft roll material-translation device for the pillow type automatic packing machine or a mechanical equipment of machining and cutting after severing.
At the present, the pillow type automatic packing machines (vertical or horizontal) from all over the world are all using one roll of film to package one series of packing goods, so the working efficiency is quite low. In order to improve the packing speed largely, and decrease the occupied space, a double track automatic packing machine is developed by combining a couple of pillow type automatic packing machines back-to-back and sharing a common frame in domestic manufacturer. It is a kind of block structure assembled by two automatic packing machines with one common frame. Except the common frame, all other assemblies, such as transmission system, electric system, electron optic tracking system, vertical proper sealing device and end sealing and cutting device are all two independent set of structures, moreover its adjusting, operating and control system are all independent respectively also. During the operation, a couple of rolls of film should be installed on the two machines separately, and the two machines work independently. Though the occupied space is decreased a little, the cost of manufacture and the number of operators is nearly the same as that of the two separate machines.
The object of the present invention is to solve the technical problems that the existing pillow type automatic packing machine can only pack one series of packing goods using one single roll of film, and the work efficiency is low comparing with the prior art.
To solve the technical problems, the present invention relates to a soft roll material-translation device, which comprises a frame 1. Specially, a left turning device 2 and a right turning device 3 that each one of them is turned on the axis of turning center 6 is set apart on the frame 1, a left folding rod pair 4 is installed on the left turning device 2, and a right folding rod pair 5 is on the right turning device 3.
The frame 1 is designed to assemble and support the other part of the device. The left and right turning device 2 and 3 are all positioned on the frame 1 by the connection of rotation pair. The turning center 6 is the rotational axial of left or right turning device 2 or 3 which is run on the axis of turning center 6. Each of left folding rod pair 4 and right folding rod pair 5 comprises a couple of folding arm, and the two folding arm of one folding rod pair should be kept in parallel with one another (in some instances, a certainty included angle should be formed as described below). A couple of roll material (such as plastic film sheet cloth etc.) setting in left and right and being parallel with each other is transited respectively through left folding rod pair 4 and right folding rod pair 5 following the procedure of folding and feeding forward, then the space between the two soft roll material is changed but the two soft roll materials apart from the folding rod pair will be parallel. The left folding rod pair 4 or right folding rod pair 5 is installed direct respectively on the left or right turning device 2 and 3, or they are mounted indirect respectively on the left and right turning device 2 and 3 through the medium of other parts. When the left and right turning device 2 and 3 are turned on the axis turning center 6, the left folding rod pair 4 and right folding rod pair 5 are driven to turn. As a result, the included angle formed by the folding arm and the direction of advance of the soft roll material is adjusted. The changing of the included angle formed by the folding arm and the direction of advance of soft roll material will lead to the change of the space between the two strips of the soft roll material.
The left folding rod pair 4 of the present invention comprises a first upper folding arm 4a and a first down folding arm 4b, and the right folding rod pair 5 comprises a second upper folding arm 5a and a second down folding arm 5b.
The lower bus bar 4c of the first down folding arm 4b and the lower bus bar 5c of the second down folding arm 5b go generally through the turning center 6. First of all, the soft roll material is folded back to the opposite direction to the feeding direction by transiting the down folding arm (the soft roll material goes to the reverse direction from the feeding), then the direction of the soft roll material return to the original feeding direction by transiting and folding through upper folding arm and changing the direction.
If the lower bus bar 4c of the first down folding arm 4b and the lower bus bar 5c of the second down folding arm 5b is not in a line, the space of the two film strips of the soft roll material will be changed after they traversing the left folding rod pair 4 and right folding rod pair 5. The interface portion of the soft roll material contacting to any one of the first upper folding arm 4a, the first down folding arm 4b, the second upper folding arm 5a or the second down folding arm 5b is the working surface, so, no matter what shape the cross section of the folding arm is adopted, the bus bar of the working surface should be kept in straight line. If the interior tension of the two strips of soft roll material is relatively uniform (mostly referring to that the tension of two border for one strip of the soft roll material is basic identity) , the bus bar of the working surface of the first upper folding arm 4a and the first down folding arm 4b is parallel to each other, and the bus bar of the working surface of the second upper folding arm 5a and the second down folding arm 5b is parallel to each other either. In this way, the forward feeding direction of the strip of soft roll material will be unchanged after two times folding across a couple of arms. If the interior tension of the two strips of soft roll material is uneven (mostly referring to that the tension of two border for one strip of the soft roll material is different in a large extent), a certain degree of included angle should be formed between the bus bar of the working surface of the first upper folding arm 4a and the first down folding arm 4b, meanwhile, a certain degree of included angle should be formed between the bus bar of the working surface of the second upper folding arm 5a and the second down folding arm 5b, in this way, the forward feeding direction of the strip of soft roll material will be kept unchanged after two times folding across a couple of arms. The lower bus bar 4c of the first down folding arm 4b, or the lower bus bar 5c of the second down folding arm 5b refers herein to the line where the soft roll material is back folded to change the direction.
The left or right turning device 2 or 3 of the present invention comprises a turning seat 7, a turning guide unit and a turning regulating unit respectively. The left folding rod pair 4 or right folding rod pair 5 is installed on the turning seat 7 of the left or right turning device 2 or 3 separately.
The turning seat 7 is connected rotatable with frame 1 by the rotation pair. The turning guide unit is designed to guide the turning seat 7 turning on the axis of the turning center 6 on the frame 1. The turning regulating unit may be a gear-sector wheel, worm sector-worm pair, turn pair and screw pair etc. The turning regulating unit is designed to adjust the angular degree which is formed by the turning seat 7 turning around the turning center 6. The left folding rod pair 4 is set on the left turning device 2 directly, or it may be mounted indirectly through other part. The right folding rod pair 5 is installed on the right turning device 3 directly, or it may be mounted indirectly through the medium of other part.
The turning guide unit of the present invention comprises a slide block 8 and a turning slide guide 31 on the frame 1. The turning regulating unit comprises a sector gear 9 and gear 10. Each sector gear 9 of the left or right turning device 2 or 3 is fixed to the left or right sides of frame 1 separately, and their centers of circle are all coincided with the turning center 6. The gear 10 is engaged with sector gear 9, the gear shaft 11 of the gear 10 is set on the turning seat 7, and a rotary knob 12 is positioned on the gear shaft 11. The slide block 8 is mounted on the rotating seat 7, and it is fitted with the rotating slide guide 31 on the frame 1. The virtual centre of a circle of the rotating slide guide 31 is coincided with the rotating center 6.
The rotary knob 12 may be replaced by handgrip or other structure having the similar function. When turning the rotary knob 12, the gear shaft 11 is rotated to drive gear 10 rolling upon sector gear 9. When gear 10 rolls along the sector gear 9, the turning seat 7 and slide block 8 which is cooperated with the turning slide guide 31 on frame 1 and driven by the gear shaft 11 is turned around turning center 6.
The turning regulating unit of the present invention further comprises a first screw stem 14 and knob 15. The first screw stem 14 is cooperated with bolt hole in the slide block 8 with one end of the first screw stem 14 contacted with frame 1 and another end connected with knob 15.
The first screw stem 14 and knob 15 are used for loosing or locking the turning seat 7 from or with the frame 1, and knob 15 may be a handgrip or other institution for performing the similar function. As the slide block 8 is mounted on the turning seat 7, the turning seat 7 is loosen or locked through lockout or lock of slide block 8. In the present invention, the first screw stem 14 and knob 15 may also be positioned on the turning seat 7, so the turning seat 7 is loosen or locked directly by turning the first screw stem 14 and knob 15. The technical solution that the first screw stem 14 and knob 15 installed on the turning seat 7 is in the protection field of the present invention. Any other technical solution for loosing and locking supplied for the substitution of the first screw stem 14 and knob 15 may also be taken. As long as the substitutional device may loose the turning seat 7 from frame 1 or fix the turning seat 7 with the frame 1, it should be in the protection field of the present invention.
The turning guide unit and turning regulating unit of present invention is described as followed: The turning guide unit comprises a first pin roll 16 on frame 1, and an axle hole on the turning seat 7 of the left and right turning device 2 and 3 is installed in the first pin roll 16 through the corresponding axle hole. Moreover, the axis of the first pin roll 16 is coherent with the axis of rotating center 6 of the left and right rotating device 2 and 3. The turning regulating unit comprises an arc channel 17, a third pin roll 18, an adjusting shaft 19, a second screw stem 20, a third screw stem 21 and a second pin roll 22. The arc channel 17 is located on the frame 1, its centre matches together with the turning center 6. The middle part of third pin roll 18 is situated in the arc channel 17. One end of third pin roll 18 is fasten on the turning seat 7, and another end is connected with the third screw stem 21. One end of second pin roll 22 is fixed on the frame 1, and the other end is connected with the second screw stem 20. Both the two ends of the adjusting shaft 19 have the female thread with adverse rotary direction, and the second screw stem 20 and 21 with the adverse rotary direction combines with the female thread in the two ends of adjusting shaft 19.
The third pin roll 18 takes the movement of arcs of circles along the arc channel 17 to drive the turning seat 7 turning all along the turning center 6. When turning the adjusting shaft 19, the second screw stem 20 and 21 flex along the adjusting shaft 19 in reverse direction, thereby, the turning seat 7 which is driven by third pin roll 18 moves around turning center 6. The self-locking action between one female thread in the two ends of adjusting shaft 19 and one of the second screw stem 20 and 21 is provided, so the turning seat 7 is locked up upon frame 1.
At least one of the first and second upper folding arm 4a and 5a is installed on the motional seat 23 which is mounted on the turning seat 7. A motional guide unit and a motional regulating unit are equipped on the motional seat 23.
The first upper folding arm 4a or the second upper folding arm 5a may be mounted directly upon motional seat 23, or it may be installed indirectly through the medium of other device. The motional seat 23 and turning seat 7 is connected by motional pair, motional seat 23 may shift on the turning seat 7. The parallel translation of the first upper folding arm 4a over the first down folding arm 4b, or the second upper folding arm 5a the second down folding arm 5b is driven by motional seat 23. The motional seat 23 which takes the straight line motion along the turning seat 7 is guided by the motional guide unit in order to change the space between the first upper folding arm 4a and first down folding arm 4b, or the space between second the upper folding arm 5a and the second down folding arm 5b. The moving space of adjusting motional seat 23 along turning seat 7 is controlled by the motional regulating unit, namely, the space between the first folding arm 4a and the first down folding arm 4b, or the space between the second upper folding arm 5a and the second down folding arm 5b.
The first and the second upper folding arm 4a and 5a of the present invention is installed on the turning seat 7 or motional seat 23 respectively through the corresponding swing pin roll 24, and the first and the second upper folding arm 4a and 5a are all equipped with swing regulating units.
The first upper folding arm 4a or the second upper folding arm 5a is mounted directly upon the motional seat 23, or it may be installed indirectly through the medium of other device. The motional seat 23 and turning seat 7 is connected by motional pair (prism pair), motional seat 23 may shift on the turning seat 7. The parallel translation of the first upper folding arm 4a over the first down folding arm 4b, or the second upper folding arm 5a over the second down folding arm 5b is driven by the motional seat 23. The motional seat 23 which takes the straight line motion along the turning seat 7 is guided by the motional guide unit in order to change the space between the first upper folding rod 4a and the first down folding arm 4b, or the space between the second upper folding arm 5a and the second down folding arm 5b. The motional regulating unit is provided for adjusting the moving space of the motional seat 23 along turning seat 7, namely, adjusting the space between the first upper folding arm 4a and the first down folding arm 4b, or the space between the second upper folding arm 5a and the second down folding arm 5b.
The first or the second upper folding arm 4a or 5a of the present invention is installed on the turning seat 7 or motional seat 23 respectively through the corresponding swing axis pin 24, and the first and the second upper folding arm 4a and 5a are all equipped with swing regulating units.
The first or the second upper folding arm 4a or 5a of the present invention is installed either on the turning seat 7 or on the motional seat 23 respectively through the corresponding swing pin roll 24, and at least one of a swing pin roll shaft 24 is positioned on the motional seat 23. The included angle between the first upper folding arm 4a and the first down folding arm 4b, or the included angle formed by the second upper folding arm 5a and the second down folding arm 5b may alter by turning the first or the second upper folding arm 4a or 5a around the corresponding swing pin roll 24. The tension of each border of each film strip of the soft roll material can be governed by adjusting the included angle formed by the first upper folding arm 4a and the first down folding arm 4b, or the included angle formed by the second upper folding arm 5a and the second down folding arm 5b. The turning regulating unit may be a slide block, screw pair, column pair and screw pair, eccentric wheel or clutch etc. The angular degree of pendular movement of the first upper folding arm 4a or the second upper folding arm 5a is regulated by the turning regulating unit which also fixes the first upper folding arm 4a and the second upper folding arm 5a at this angular degree.
A drive roll 25, a tool carrier 27 are placed on the frame 1, and a cutting knife 26 is carried by the tool carrier 27. The drive roll 25 stands in front of the first and the second upper folding arm 4a and 5a. The cutting knife 26 is situated in the middle of drive roll 25.
The drive roll 25 is provided for driving the soft roll material which moves forward and fed to the folding rod pair 4 and 5. When the present invention is applied for packing machine or related equipment, the film drive roll of the packing machine may substitutes the drive roll 25. The extended line of the cutting knife which cut the soft roll material along the longitudinal direction into two film strip goes through the middle of folding pair 4 and 5.
A guide roll 28 is provided on the frame 1 of the present invention, and it is situated at the backside of the first and second down folding arm 4b and 5b.
The guide roll 28 is provided for guiding the two cut film strip of soft roll material which is folded and drawn apart with a space from each other by the folding rod. When the device of the present invention is provided for a packing machine, frame 1 swings and modulates around drive roll 25, and the guide roll 28 translate parallel along the surface of frame 1 simultaneity, thus the bag making compact adjusting roller for the packing machine may be replaced by the guide roll 28.
The present invention is mainly applied in (vertical or horizontal) pillow type automatic packing machine or other mechanical apparatus for re-machining and cutting after cutting and severing. By adding a few devices, the work efficiency may improve for one times comparing with the prior art. For example: while a set of the device of the present invention, a side by side supply and transportation device for supplying the packaged goods, a bag making device, and a vertical sealing device are equipment with the original package machine, and the portion relating to the width of the film is widened, a two series automatic packaging for goods in one automatic packing machine can be accomplished by using one set of transmission electric appliance, electron optic tracking system, and operating and controlling device. The packing efficiency can be improved duplication without increasing the number of operating staff.
The present invention shall be described in details by the preferred embodiments with reference to the drawings.
As shown in
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With reference to
The working principle of the three embodiments of the present invention is shown in
Two series of goods can be packaged at one time by using film strip 57 and 58 simultaneity. The space L between the film strip 57 and 58 is adjusted by changing the degree of angular α formed by frame 1 and the first upper folding arm 4a or the first down folding arm 4b, as well as the second upper folding arm 5a or the second down folding arm 5b by regulating the turning regulating unit. By adjusting the space between the first upper folding arm 4a and the first down folding arm 4b, or the space between the second upper folding arm 5a and the second down folding arm 5b of the motional regulating unit, the error of length between film 57 and film strip 58 generated by the different elongation of drawn stretch during the procedure of downstream process can be controlled. The tension of each border of film strip 57 and film strip 58 is governed by adjusting the included angle formed by the first upper folding arm 4a and the first down folding arm 4b, or the included angle formed by the second upper folding arm 5a and the second down folding arm 5b of swing regulating unit.
| Number | Date | Country | Kind |
|---|---|---|---|
| 200510054921.7 | Mar 2005 | CN | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/CN2006/000353 | 3/9/2006 | WO | 00 | 9/18/2007 |
