Device for feeding a web of material into a folding machine

Information

  • Patent Grant
  • 6588739
  • Patent Number
    6,588,739
  • Date Filed
    Friday, June 8, 2001
    23 years ago
  • Date Issued
    Tuesday, July 8, 2003
    21 years ago
Abstract
A device for feeding a web of material utilizes a pair of low angle bar superstructures situated adjacent to each other. Two cross or transverse folding devices are situated on the same or on different planes after, in the direction of web travel, the superstructures. Wide webs of material can be processed and if one of the transverse folders fails, production can be shifted to the other folder.
Description




The invention relates to a feeding device for a web of material in accordance with the preamble of claim


1


.




Paper web feeding devices consisting of a first and second superstructure, between which an unencumbered connecting partial paper web guide chute, which is bordered by paper guide rollers, is arranged, are known from DE 94 21 467 U1. A longitudinal folding device for so-called “funnel production”, or a draw-in device for so-called “magazine production”, are selectively provided between the superstructures and a web inlet of the folding device, or of the transverse folding device.




DE 296 17 976 U1 discloses a feeding device for a web of material for two folding devices, wherein two superstructures are arranged one above the other.




The object of the invention is based on providing a feeding device for a web of material for a folding device.




The object is attained in accordance with the invention by the means of the characteristics of claim


1


.




The following advantages in particular are achieved by means of the invention: only short paths are needed for guiding the partial webs of material because of the guidance of two partial webs of material on a horizontal level of the two-part superstructure and using respectively only one turning bar. A low structural height of the superstructure is achieved in this way which, in turn, leads to the reduction of the total height of the web-fed rotary printing press. The number of production variations is increased by the use of two transverse folding devices. The ability to vary the products is increased by means of the selective use of two arranged longitudinal folding devices, or of two arranged draw-in devices for funnel production or for magazine production, along with a low structural height of the two-piece compact superstructure, which exists anyway.




A reduced technical outlay also occurs because the feeding device for the webs of material can be used for both types of production mentioned above. It is advantageously possible to process wide webs of material with two transverse folding devices.




With an arrangement of two transverse folding devices oriented in the same direction it is possible in case of the outage of a first transverse folding device to provide a replacement function, without changing the plate on the printing cylinder, by using the second transverse folding device.











Exemplary embodiments of the invention are represented in the drawings and will be described in greater detail in what follows.




Shown are in:





FIG. 1

, a schematic plan view of feeding device for webs of material for two folding devices, selectively for funnel production or magazine production, wherein the folding devices are arranged on a common level,





FIG. 2

, a schematic plan view analogous to

FIG. 1

, but with two folding devices arranged on different levels.











A web of material, for example a printed paper web as wide as a printing cylinder and of a width b, enters a known longitudinal cutting device, not represented, from print units, not represented, of a web-fed rotary printing press, for example a web-fed rotogravure rotary printing press arranged between lateral frames


1


and


2


, for example, where the paper web is longitudinally cut into twelve partial paper webs


4


to


15


, for example. The partial paper webs


4


to


15


are conducted to a first superstructure A connected with the lateral frames


1


,


2


, as well as to a second superstructure B, in which respective partial paper web guide groups A


1


to A


6


, as well as B


1


to B


6


, are arranged above each other for guiding and diverting the partial paper webs


4


to


15


. Here, respectively two partial paper webs


4


,


10


;


5


,


11


;


6


,


12


;


7


,


13


;


8


,


14


;


9


,


15


are arranged on horizontally extending levels B


1


, A


1


; B


2


, A


2


; B


3


, A


3


; B


4


, A


4


; B


5


, A


5


; B


6


, A


6


, with respectively five intervening spaces of a partial paper web width. Each one of the said partial paper web guide groups A


1


to A


6


, as well as B


1


to B


6


has one of the turning bars


24


to


35


, one of the register rollers


39


to


50


, as well as one of the guide rollers


54


to


65


. The partial paper webs


4


to


9


of the superstructure B, or


10


to


15


of the superstructure A, which are each turned by 90° over the turning bars


24


to


35


and are guided in the horizontal direction, are conducted in the direction of the respective lateral frames


1


, or


2


, and are subsequently conducted back via the respective register rollers


39


to


44


, or


45


to


50


, which are adjustable in the horizontal direction, in the superstructures A, B, and toward each other in pairs


4


,


10


;


5


,


11


;


6


,


12


;


7


,


13


;


8


,


14


;


9


,


15


in the partial paper guide groups B


1


to B


6


, as well as A


1


to A


6


, to a connecting partial paper web guide chute


51


, on whose two chute sides


52


,


53


the guide rollers


54


to


65


, which are fixed in place in the lateral frames, are respectively provided per partial paper web guide group B


1


to B


6


, as well as A


1


to A


6


, for the vertical diversion of the partial paper webs


4


to


15


. The guide rollers


54


to


65


are each embodied as separately driven draw rollers, but are called guide rollers in the following description. Thus, guide rollers, register rollers, as well as a plurality of turning bars, for example two turning bars, are arranged on each level A


1


, B


1


to A


6


, B


6


. In this case, the partial paper webs


4


to


9


, which are conducted at the first chute side


52


over the guide rollers


54


to


59


are combined into a first partial paper web strand


67


, and the partial paper webs


10


to


15


, which are conducted at the second chute side


53


over the guide rollers


60


to


65


, are combined into a second partial paper web strand


68


.




The two partial paper web strands


67


,


68


are each conducted at the lower end


69


of the partial paper web guide chute


51


over guide rollers


71


,


72


, fixed in the lateral frames, and over pairs of draw rollers


73


,


75


to draw units C, D located on a machine level underneath the superstructures A, B.




Each one of the draw units C, D is used for “magazine production” and consists of a pair of draw rollers


74


,


76


.




The pairs of draw rollers


74


,


75


are spaced apart from each other at least horizontally, and can be located in separate lateral frames, not represented. Each one of the draw units. C, D is respectively located on a level above a strand inlet E, or F, of two transverse folding units G, H located on the lowest level L (FIG.


1


).




The transverse folding units G, H located on a common level are placed “back to back”, and their delivery belts each point in opposite directions (FIG.


1


). It is also possible for the transverse folding units G, H to be arranged one behind the other, and for their delivery belts to point in the same direction. Finally, it is possible to arrange both transverse folding units G, H next to each other in the axial direction.




The transverse folding units G, H can be embodied as so-called jaw folders or as so-called wheel folders.




The strand inlet E, F of each transverse folding unit G, H consists of a pair of draw rollers


78


,


79


for drawing in one of the two partial paper web strands


67


,


68


, as well as of a known transverse strand cutting device


81


,


82


of the transverse cutting unit G. H.




All shafts, or axes, of the register rollers


39


to


50


, as well as of the guide rollers


54


to


60


, the guide rollers


71


,


72


, of the rollers of the strand inlets E, F, as well as of the transverse strand cutting device


81


,


82


, extend with their axes parallel to each other and at right angles to the shafts, or axes, of the print units of the web-fed rotary printing press.




The partial paper web guide chute


51


, which separates the two superstructures A, B to form the partial paper web strands


67


,


68


receives the guide rollers


54


to


59


, as well as


60


to


65


, which are arranged above each other on its chute sides


52


,


53


, of the superstructures B, A, wherein the guide rollers


54


to


59


of the superstructure B are located on a level


86


, and the guide rollers


60


to


65


of the superstructure A are located on a level


85


. Both levels


85


,


86


intersect a horizontal line


84


at an acute angle alpha


1


, alpha


2


, and can extend parallel with each other. Viewed in the running direction of the partial paper webs


9


to


15


, a paper guide roller


87


to


89


is respectively arranged ahead of the guide rollers


59


to


65


in order to achieve an improved looping of the paper web around the associated guide rollers


59


to


65


.




When operating as a “magazine production”, the operation of the paper web feeding underneath the superstructures A, B is as follows: coming from the pair of draw rollers


73


, the first partial paper web strand


67


runs through the left draw unit C and can be introduced over a paper guide roller


83


into the left strand inlet E of the left transverse folding unit G.




In the same way it is possible, to conduct the second partial paper web strand


68


coming from the pair of draw rollers


75


over the right draw unit D and a paper guide roller


94


into the right strand inlet F to the right transverse folding unit H.




However, it is also possible to assign the left partial paper web strand


67


via a paper guide roller


101


to the right draw unit D, and therefore to the strand inlet F and the right transverse folding unit H.




Moreover, the second partial paper web strand


68


can be assigned via a paper guide roller


102


to follow the left strand inlet E, and therefore to the left transverse folding unit G.




It is of course also possible to operate as a so-called “funnel production” with the configuration of the paper feeding device represented in

FIG. 1

, which is performed analogously to the remarks regarding FIG.


2


. In this case the partial paper webs


4


to


15


are conducted over the funnel inlet group M of the longitudinal folding units I, K.




In case it is intended to operate as a so-called “funnel production”, i.e. longitudinally folded partial paper web strands are produced from wider partial paper webs, which are subsequently intended to be transversely cut and transversely folded, then in accordance with

FIG. 2

a printed paper web, for example of the width of a printing cylinder, of a width b is longitudinally cut into, for example, five partial paper webs


96


to


100


of equal width. The partial paper webs


96


to


100


are conducted to the superstructures A, B (same parts have the same reference numerals), wherein the partial paper webs


96


,


97


,


98


are turned on the turning bars


24


,


27


,


29


in the partial paper web guide groups B


1


, B


4


, B


6


on the left side of the partial paper web guide chute


51


and are horizontally guided, and the partial paper webs


99


,


100


are turned on the turning bars


30


,


35


in the partial paper web guide groups A


1


, A


6


on the right side of the partial paper web guide chute


51


and, as already described above, are conducted in an approximately vertical direction to the lower end


69


of the partial paper web guide chute


51


. In the process, a common paper web strand


103


is formed, which is conducted over a guide roller


71


to a left longitudinal folding unit I located on a machine level underneath the superstructures A, B.




It would also be possible, to provide a right partial paper web strand


105


, constituted by the partial paper webs


100


and


99


, over the guide roller


72


to a right longitudinal folding unit K, which is located on the same level as the left longitudinal folding unit I.




Finally, it is also possible to conduct the paper web strand


103


coming out of the two superstructures A, B to the right longitudinal folding unit K.




The two longitudinal folding units I, K are arranged mirror-inverted in respect to a level


106


extending between them, and are therefore provided with the same reference numerals.




Each longitudinal folding unit I, K consists of a known longitudinal folding funnel


107


with two pairs of funnel inlet rollers


108


,


109


arranged above it, only one roller of which is shown. The elements


107


,


108


,


109


of the longitudinal folding unit I, K are located in a separate frame, not represented. The frame also receives a funnel inlet group M respectively located above the longitudinal folding units I, K, and consists of five turning bars


113


to


117


arranged above each other. Five paper guide rollers


120


to


124


, which are fixed in place in the frame and extend axis-parallel with the guide roller


71


, are arranged upstream of the turning bars


113


to


117


on the same horizontal level, and paper guide rollers


131


to


135


, located on the same horizontal level, are arranged downstream from them. In this way the partial paper webs


96


to


100


, which are fed in from the superstructure A, B as a paper web strand


103


, are separately conducted by the paper guide rollers


120


to


124


of the funnel inlet group M of the longitudinal folding unit I through 90° from the vertical into a horizontal direction, turned by means of the turning bars


113


to


117


, and are conducted to the longitudinal folding unit I over the following paper guide rollers


131


to


135


through 90° in a vertical direction, which is offset by 90° in respect to the first vertical direction.




Thereafter, the longitudinally folded paper web strand


103


is conducted to the transverse folding unit H located on the lowest level C for further processing, after the longitudinally folded paper web strand


103


has passed over the pair of draw rollers


78


located upstream of the transverse folding unit H (FIG.


2


).




The two transverse folding units G, H are arranged on different horizontal levels O, N, wherein the level N with the transverse folding unit G is located above the level O. Here, the strand inlets E, F are each offset and distant from each other at a distance p.




In this case the delivery belts for the printed products are pointing in the same direction. Because of this it is possible that both transverse folding devices G, H can be operated separately or, when one of the transverse folding devices G or H fails, its production can be taken over by the other transverse folding device. List of Reference Numbers


















 1




Lateral frame






 2




Lateral frame






 3











 4 to 15




Partial paper webs






10 to 23











24 to 35




Turning bar (A, B)






36











37











38











39 to 50




Register roller (A, B)






51




Partial paper web guide chute






52




Chute side, first (51)






53




Chute side, second (51)






64 to 65




Guide roller (A, B)






66











67




Partial paper web strand, first






68




Partial paper web strand, second






69




End, lower (51)






70











71




Guide roller






72




Guide roller






73




Pair of draw rollers (67)






74




Pair of draw rollers, left






75




Pair of draw rollers (68)






76




Pair of draw rollers, right






77











78




Pair of draw rollers (E)






79




Pair of draw rollers (F)






80











81




Transverse strand cutting device (G)






82




Transverse strand cutting device (H)






83




Paper guide roller






84




Horizontal line






85




Level (60 to 65)






86




Level (54 to 59)






87 to 93




Paper guide roller






94




Paper guide roller






95











96 to 100




Partial paper webs






101 




Paper guide web






102 




Paper guide web






103 




Paper web strand, left






104 











105 




Paper web strand, right






106 




Level (I, K)






107 




Longitudinal folding funnel






108 




Pair of funnel inlet rollers (F)






109 




Pair of funnel inlet rollers (F)






110 











111 











112 











113 




Turning bar (I, K, 96)






114 




Turning bar (I, K, 97)






115 




Turning bar (I, K, 98)






116 




Turning bar (I, K, 99)






117 




Turning bar (I, K, 100)






118 











119 











120 




Paper guide roller (I, K, 96)






121 




Paper guide roller (I, K, 97)






122 




Paper guide roller (I, K, 98)






123 




Paper guide roller (I, K, 99)






124 




Paper guide roller (I, K, 100)






125 to 130






131 to 135




Paper guide roller






A




Superstructure, first






B




Superstructure, second






C




Draw unit (74)






D




Draw unit (75)






E




Strand inlet






F




Strand inlet






G




Transverse folding unit






H




Transverse folding unit






I




Longitudinal folding unit, left






K




Longitudinal folding unit, right






L




Level






M




Funnel inlet group (I, K)






N




Level






O




Level






A1 to A6




Partial paper web guide groups






B1 to B6




Partial paper web guide groups






b




Width of paper web






p




Distance (G, H)






alpha 1




Angle (84, 85)






alpha 2




Angle (84, 85)













Claims
  • 1. A material web feeding device for a folding unit comprising:a first superstructure having a plurality of first superstructure levels and a second superstructure having a plurality of second superstructure levels, said first and second superstructures being arranged next to each other; a plurality of turning bars and guide rollers arranged on each of said first and second superstructure levels; an unencumbered connecting guide chute for receiving several partial webs of material, said guide chute being positioned between said turning bars on each of said first and second superstructure levels; a plurality of transverse folding units adapted to process the partial webs of material, said transverse folding units being located after, in a direction of travel of the partial webs of material, said first and second superstructures, each of said plurality of transverse folding units having a delivery belt, said delivery belts of said plurality of transverse folding units pointing in the same direction, said plurality of transverse folding units each being separated arranged on a different level; and a plurality of longitudinal folding units and a plurality of draw units arranged intermediate said first and second superstructures and said plurality of transverse folding units.
  • 2. The material web feeding device of claim 1 wherein said guide rollers are driven draw rollers.
  • 3. The material web feeding device of claim 1 further including register rollers on each of said plurality of first and second superstructure levels.
  • 4. The material web feeding device of claim 1 wherein an even number of said turning bars is provided on each of said first and second superstructure levels.
  • 5. The material web feeding device of claim 1 wherein two of said turning bars are provided on each of said first and second superstructure levels.
  • 6. The material web feeding device of claim 1 wherein each of said transverse folding units is a jaw folder.
  • 7. The material web feeding device of claim 1 wherein each of said transverse folding units is a wheel folder.
Priority Claims (1)
Number Date Country Kind
198 56 422 Dec 1998 DE
PCT Information
Filing Document Filing Date Country Kind
PCT/DE99/03537 WO 00
Publishing Document Publishing Date Country Kind
WO00/34167 6/15/2000 WO A
US Referenced Citations (14)
Number Name Date Kind
3819172 Santaella Jun 1974 A
3977665 Bowman et al. Aug 1976 A
4349185 Small et al. Sep 1982 A
4691908 Bradley Sep 1987 A
4725050 Fujishiro Feb 1988 A
5303909 Maylaender Apr 1994 A
5503379 Michalik et al. Apr 1996 A
5573231 Stab Nov 1996 A
5685528 Weis Nov 1997 A
5707054 Loquet et al. Jan 1998 A
5775222 Zweifel et al. Jul 1998 A
6010122 Weber Jan 2000 A
6024684 Mayländer et al. Feb 2000 A
6193640 Weis Feb 2001 B1
Foreign Referenced Citations (3)
Number Date Country
2435972 May 1983 DE
9421467 Jan 1996 DE
29617976 Feb 1997 DE