JPS63176258A - Method and device for separating lowermost section of rectangular parallelopiped stacked paper from stacked paper section on said section - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides a method for folding a material web according to the preamble of claim 1 or 5 in a zigzag manner along weakening brackets (perforations). The present invention relates to a method and apparatus for separating the bottom portion of a rectangular parallelepiped paper stack from the upper part of the stack.

(Prior Art/Problems to be Solved by the Invention) It is known that paper webs of a predetermined length are folded in a zigzag pattern and stacked together to form a continuous web to be fed to a high-speed printer, such as a laser printer. ing. For this purpose, the lower ends of the paper webs forming the first stack are respectively joined to the upper ends of the paper webs forming the next stack.

Therefore, for this joining, it is necessary to pull out the lower end of one of the stacked sheets below the TK stacked paper.

In this regard, it is known to slide the stack of paper to be subdivided on a path provided with a table finish, and in a sliding direction substantially perpendicular to the longitudinal direction of the path. As they pass over the channel, a specific, non-accurately selectable number of zigzag folds fall into the channel, which often requires assistance from the operator.

The zigzag folds thus separated have to be collected on a support in a more or less irregular EIIJ, from where they must then be pulled up through a passage in a very laborious manner and approximately one zigzag fold at a time.

By the way, a method of peeling off only the bottom paper of a stack of paper consisting of a paper web folded in a zigzag manner and joining it to the top paper of the next stack is disclosed in European Patent Publication No. 1.
It is well known from No. 34535. The stack is fed over the platform toward the aisle to peel this bottom paper from the stack. The bottom paper must then have its free end facing the path. A roller with an adhesive surface is provided at the front edge of the path in the sliding direction, which grips the bottom paper and holds it while the stack of sheets is being conveyed further along the path. . The bottom paper is folded back and becomes free. Instead of a roller with an adhesive surface, a suction device can also grip the bottom paper.

However, this known method and the equipment suitable for carrying it out are subject to the risk of contamination as well as design over-expenditure. Moreover, care must be taken to ensure that the stack of sheets moves to the correct position on the path.

SUMMARY OF THE INVENTION The invention therefore provides a simple, reliable, and quick way to separate the bottom portion of a stack of paper from its multiple zigzag folds from the portions above it, which may require significant assistance from the operator. The object of the present invention is to provide a method and a device of the type mentioned at the outset, which makes it possible to do so without any problems.

(Means for solving the problem) According to the present invention, this object is achieved by the features of claim 1 or 5.

The stack of paper to be subdivided is fed with one corner forward towards the separating element, which penetrates between the layers of the stack and lowers the lowest part of the stack consisting of multiple zigzag folded material web sections. convert to Separation takes place at substantially the same height in each case, and the separated lower stack is always at el
Almost the same size. This separation requires no operator assistance, or at most only the very first time.

The separated lower paper stack portion is simply collected in a collection container located below the channel, from which it can be removed again as a package without difficulty. This is especially true if the depth of the collection container corresponds to the height of the sheet, the height of the individual material web sections defined by the lines of weakness of the pick.

The inventive method and the inventive device are particularly suitable for forming continuous webs from folded lengths of material webs to be fed to printers, especially high speed printers.

Preferred developments of the subject matter of the invention are specified in the dependent claims.

(Function) The stack of paper (30') to be subdivided is
) is slid on a passageway (4) formed by two table plates (2, 3). One table board (3
) with a wedge-shaped cross section on the end face (6a) of the separating edge plate (
27) is fixed in the sliding direction (E) of the stacked paper (30'). The stacked paper (30') is passed from one table board (2) to the other table board (6) via the passage (4).
When slid into position, this separating edge plate (27) enters between the stacked layers and separates the lower portion (39) of the stack (50') from the portion above it. This separated stacked paper section (39) is directed downwards through the channel (4) and is collected as a packet in a collection container arranged below the channel (4).

After the paper stack (30') has slid completely over the channel (4) onto the second table plate (3), the separated lower paper stack part (39) can be easily removed by hand from the collection container. It can be removed and placed next to the remaining stack (30'). The lower end of the paper stack (30') can then be joined to the end of a subsequent paper web to form a continuous web. (FIG. 5) (Example) The present invention will be described in detail below based on the drawings.

1 to 9, the construction and operation of a first embodiment of an apparatus for splicing previously folded material webs together to form a continuous web will be described below.

In this device, a pedestal 1 has two table plates 2.3.

The table plates 2 and 3 are spaced apart, and both table plates 2 and 3 are spaced apart.
．． A gap 4 is formed extending horizontally between the holes 6 and 6. The two table plates 2.3 can be arranged at opposite heights. However, it may be advantageous for the particular 'ilJ joint Y-pull plate 2 to be somewhat lower than the table plate 3. As shown in FIG. 5, both table plates 2.3 have a completely sealed hollow chamber 5 into which a connecting pipe 6 connected to a compressed air source (not shown) flows. A discharge lower is provided on the upper surface of the table plate 2.5, communicating the outside with the hollow chamber 5, and closing this passage with a ball 8 (FIG. 5). Compressed air supplied to the hollow chamber 5 and discharged from the discharge lower produces air silane. The purpose of the air dots will be explained later.

A vertical wall 9 is fixed to one rear end surface of the frame 1. A feed drive 10 of known construction, which is only schematically indicated at the foot of this wall, is disposed within the pedestal 1.

A collection container 11 is arranged below the gap 4 between the two table plates 2.3, the structure of which can best be seen in FIG. This collecting container 11 has a pair of barrels 12 connected to each other in a V shape.
formed by.

The floor grid 13 closing under the collection vessel 11 is formed by individual bars 14 which engage between the pairs of bars 12, as can be seen in FIG. The rods 14 of the floor grid 13 are fixed to a common pivot shaft 13. The rods 14 can therefore be pivoted together in the direction of the arrow A or A, and thus the depth of the collection container 11 can be adjusted.

A support table 16 is placed above both table plates 2.3 and support column 1.
It is fixed to 7. The support column is capable of sliding back and forth in the direction of arrow B. A support arm 18 extends from this column 17 in parallel with the support table 16. A carriage 19 (FIG. 3) is suspended on this support arm 18 and is slidable along the support arm 18 in the direction of arrow C or in the backward direction C.

A separator 20 and an adhesive applicator 21 are disposed on this carriage 19. The separator 20 is formed by a rotatably mounted disc knife 22 .

The adhesive applicator 21 has an adhesive container 23 that can be moved vertically, that is, in the direction of the arrow. The adhesive container 25 is provided with an adhesive application tip 25af at the lower end. The carriage 19 can further be provided with a press machine (not shown) and a detection array (also not shown) for monitoring adhesive application and film. The purpose of the press array and detection array will be explained in more detail later.

Projecting above the support table 16 are chips 24, 25 arranged in two mutually parallel rows. This chip row 24, 25 extends perpendicularly to the sliding direction c, c' of the carriage 19. As will become clearer later on, the distance between both chip rows corresponds to the width of the material web to be processed, while within one row the distance between the chips 24, 25 corresponds to the perforation hole in the material web to be processed. The table part 16a of the support table 16, which in the illustrated embodiment is formed by a metal edge plate, is located between the chips 24, 25 arranged in region 2 of this part, which is adjacent to the separator 20 and the glue applicator 21. It is provided with a discharge hole 26, which is only shown schematically at least. Only some of the holes are shown in FIG. This hole communicates with a 4-nitrogen pump (not shown).

End surface 30 (second
An edge plate 27 with a wedge-shaped cross section is fixed to the edge plate 27 (FIG. 2), whose cutout 27a (FIG. 2) faces toward the table plate 2. A guide edge plate 28 is fixed to the table plate 2.3 along the longitudinal machining hole on the front side of Figure 1, but this is only shown in Figure 4 and is omitted in the remaining figures for clarity. The guide edge plate 28 has a first guide surface 28 a f parallel to the longitudinal edge of the table surface 2.6, which extends from the table plate 3 across the gap 4 to the table plate 2.

As can be clearly seen from FIG. 4, this first guide surface 28a
Subsequently, a second guide surface 28b, which is bent from this, is arranged over the entire area of the table board 2.

As shown in FIG. 1, there are two piles of paper 2 on the table board 6.
9.33, A pile of stacked papers 31 is placed on the table board 2. The paper stacks 29, 30, 61 are each formed by a zigzag folded paper web 32, 55, 34. Paper web 32, 33, 34 is fed (feed hole) 65
．． 33, confirm the line of weakness and material web 52.55.54
transverse perforations 57 separating the web into individual web pieces 38. The folding of the paper web 52, 35, 34 takes place along this transverse perforation 57. 3 Ingredients Kuep 32.
33 and 34 are spliced together to form one continuous web P, which is pulled out from the stack 29 by the feed drive 10 and fed to a high-speed printer, for example a laser printer, by a known method (not shown).

A detection arrangement (not shown), for example a photodetector, is disposed in the guide edge plate 28 to monitor the presence of a stack of paper on the table plate 2.3. It is connected to this for control purposes in order to stop the high-speed printer connected to the subsequent stage. Of course, the length of the table board 2.3 can be selected to any desired size, and it is also possible to prepare five or more stacks of paper on the table board 3.

Hereinafter, based on the paper webs 53 and 54, it will be explained how to join the zigzag folded paper webs to each other. Figures 4-9 are particularly helpful in this regard.

A new stack of paper (in this case stack of paper 30) is placed on the table board 2. This can be done manually or automatically. This paper stack 30Vi is formed by a zigzag folded material web 33, as already mentioned. The stacked paper 30 rests on an air cushion formed by air discharged from the discharge lower, and therefore can be easily moved by hand. The stack of papers 30 is then pushed towards the other table board 3 with its corners 30c pushed forward.

In order to position the stacked paper 30 in the correct position, the longitudinal end surface 30b of the stacked paper is brought into contact with the guide surface 28b of the guide edge plate 28 by hand (FIG. 4). The now slanted stack of paper is number 4.5.
It is indicated by 30 in the figure.

The paper stack 30 is now fed along the guide surface 28b, ie in the direction of the arrow E. During this feeding, the end faces 30b, 3
The corner 50c defined by 0a reaches within the active range of the separating edge plate 27 which projects into the gap 4. As the stack 30 is fed further, this separating edge plate forms two overlapping web pieces 38.
The lower part 39 (FIG. 5) of the stack 30' is separated from the remaining stack. This lower part 39Fi consists of several zigzag folds. Next, the stacked paper 30' is rotated in the opposite direction again while being further fed, and as is clear from FIG.
contact with. Stacked paper 30 is then fed in the direction of arrow E.

At this time, the separating edge plate 27 completely peels off the aforementioned stacked paper lower part 39. Due to the wedge-shaped design of the separating edge plate 27, this stripping of the lower paper stack 39 takes place without damaging the paper web 33.

The lower stack 39, which has been torn off as described above, then falls into the collecting container 11, as seen in FIG. The floor grid 13 is adjusted to the height of the paper by appropriately rotating the rod 14 in advance, and the lower part 39 of the stacked paper that has been peeled off is placed in the collecting container 1.
1 only to such an extent that it can be easily taken out again by hand from the collecting container 11.

Ideally, the depth of the collection container 11 is such that it is
, that is, the distance between adjacent horizontal perforations 37.

In the stacking table 3, the feeding movement of the stacked paper 30 placed still on the air cushion ends as soon as the stacked paper 30 passes over the gap 4 and is completely placed on the table board 3 as shown in FIG. do.

The paper stack portion 39 in the collection container 11 is then manually removed and placed next to the remaining paper stack 30. The remaining paper stack can be fed further in the direction of arrow E towards the wall 9 if this is desired. Next, the stacked paper portion 39 is placed on the table board 2 or 3. The last web piece 38 of the paper stack section 39 is at the same time the last piece of paper web 35 and must now be joined to the beginning of the next paper stack 31. The next stack of papers 31 is now placed on the table board 2. The column 17 with the support table 16 is brought into the working position as shown in FIG. The paper web 34 forming the stack 31 is now resting on the support table 16 with the upper two web sections 38, 38, and the transverse perforation 57 separating the two sections 38.38 can be seen in FIG. It will be adjacent to the plane of action of the disc cutter 22. This plane of action of the disc cutter 22 thus passes through the frontmost web piece 68 at a distance from the transverse perforation 37 . Both paper web single pieces 38 and 38 are attached to the binding holes 35 and 56 -P tab 24
．． 25 to adjust the position (Fig. 7). The single piece of paper web 38 is held securely in the portion 16a of the support table 16 by means of negative pressure.

While the web pieces 38 , 38 2 rest on the support table 16 , the carriage 19 in its rear end position is now fed in the direction of the arrow C. At this time, the adhesive container 25 is supported by hand in the direction of the arrow and pushed toward the table 16 to bring the adhesive application tip 25a into contact with the edge of the paper edge 40 adjacent to the horizontal perforation 57. While the carriage 19 is being fed in the direction of the arrow C, the web strips 38 are now separated by the disc cutter 22 along a separation line TK extending parallel to and spaced from the transverse perforation 37 . This separation line T, together with the transverse perforation 57, forms the aforementioned paper edge 40 which forms part of the first web piece 38. At the same time as cutting, the adhesive 41 contained in one adhesive container 23 is applied to the paper edge band 40 described above. The adhesive container 23 is attached to the carriage 1
9, the adhesive is applied 42 to the paper edge band 40 in the remaining first web single piece 38, as can be easily seen from FIG. Do this before cutting.

After the cutting process is completed, the cut portion of the web piece 38 is removed from the support table 16.

In order to be able to check the adhesive application 42, the carriage 19 can be provided with a suitable detection arrangement (not shown), which can include, for example, a fluorescent lamp for illuminating the adhesive coating. Adhesive 41 is doped with suitable particles which, when irradiated with a fluorescent rung, emit light to allow inspection of the applied adhesive. Depending on the type of particles added to the adhesive 41, other types of lamps than fluorescent lamps may be required. The detection array may be of any other suitable configuration.

□This method of monitoring the adhesive coating 42 is advantageous because the adhesive 41 does not have to be colored. This is because colored adhesives are undesirable because they run the risk of cutting the paper.

Grasp by hand the last single web piece 68 of the stacked paper portion 39 that has been previously peeled off from the stacked paper 50 as described above, and make sure that the end edge 38a is just in front of the horizontal perforation 57' so that the horizontal perforation is not hidden. Place it on the support table 16 (Fig. 8). This adjustment of the position of the web piece 38 is easily possible due to the pin 24.25'f engaging the feed-in 35.33 of the paper web 33. The paper web 33 is now glued together with the end region 46 of the last web piece 58 resting on the adhesive-coated paper strip 40 of the following paper web 34. Both overlapping areas 40,45 are compressed by hand. Alternatively, it is also conceivable to provide the carriage 19 with a press (not shown) that causes the desired suppression when the carriage 19 retreats in the direction of the arrow d. It is also naturally possible to provide a press machine separate from the carriage 19 on the support arm 181C.

The two paper webs 33, 34, joined together as described above, are then lifted by hand or by a suitable lifting device, not shown, from the support table 16, which, together with the carriage 19, is now brought into position rearwardly in the direction of arrow B.

The stack of papers 31, which has been placed on the table board 2, is then slid onto the table board 3, now with its corners forward, across the gap 4, by means of the separating edge plate 27, as already mentioned above. The bottom part of the stacked paper 31 is peeled off and the collection container 1 is removed.
Fall within 1. The end of the paper web 64 is then joined to the beginning of the next paper web to be placed in a stack on the table board 2, as previously described. The previously described process of peeling off the bottom zigzag layer of the stack and laminating the next paper web is repeated as described above.

The described apparatus and method for seaming a web of material into a continuous web has various advantages, some of which are already apparent from the above description. For example, the bottom part 39 of the paper stack can be peeled off quickly and successfully without damaging the paper web. No operator assistance is required in this case, or at most only to a limited extent. The stripped stack of paper remains neatly arranged within the receiving container and can be easily grasped and removed from the receiving container without difficulty.

The lamination of the paper webs to be joined together is simple and quick and does not require any adhesive tape.

Since the transverse perforations are not hidden when the paper webs are spliced together, it is also easily possible to fold or separate the spliced paper webs at the joint. The "fold memory" created by pre-folding the paper web to form a stack is maintained at the joint, so that the spliced material web can later be folded again without difficulty at the joint. 1, which can be easily seen from FIG. 9, which shows the joint area between the paper webs 53 and 34. It can be seen from this figure that the last web piece 33 of the paper web 33 does not obscure the transverse perforation 37'.

A modification of the device shown in FIGS. 1-8 is shown in FIG. 10.11 in a diagram corresponding to FIG. 2.6. In this variant, instead of the fixed separating edge plate 270, a rotationally driven separating element 44 is provided in the gap 4 between the two table plates 2.3, and the stack of sheets is fed from the table plate 2 to the table plate 3. This differs from the embodiment of FIGS. 1-8 in that the front clause 30C (FIG. 4) moves toward this separating element.

This separating element 44 has a support 45 which is rotatably driven in the direction of the arrow F in a manner not shown, to which a separating finger 46 is attached in such a way that it somewhat overhangs the cylindrical support 45.

As shown in FIG. 11, this separation finger 46 enters between the zigzag layers of the stacked paper 6o being fed in front of it, and
The bottom part 39 of the paper stack 30 is peeled off as already described with reference to FIG. 5.6. The embodiment shown in FIGS. 1 to 8 has the advantage that a drive device for the separation member is not required compared to the modification shown in FIGS. 10 and 11.

Of course, the various components of the device described above may be constructed differently than shown.

Furthermore, not only prefolded paper webs but also those drawn from rolls can be joined together as described above. Instead of being located in front of the printer as shown, a gluing station of the type described above may also be located within the printer itself, provided there is sufficient space there.

Furthermore, if the roles of the two material webs to be joined to each other are exchanged at the time of lamination, that is, if we refer to Figure 7.8, the paper web 33 has a material edge band 40 protruding from the transverse perforation, to which the paper web 33 is bonded. After applying the agent, the subsequent material web 34
Of course, it is also possible to place the paper on the paper edge band 40 so that the horizontal perforations 37 are not hidden. In this case, the machine 20 and the adhesive applicator 21 would have to be adapted accordingly.

Instead of applying a liquid or pasty adhesive as described above, a so-called tra-sphere adhesive is used to apply the material edge strip 4.
It is also possible to provide 0 with an adhesive coating 42. Transfer adhesives suitable for this purpose consist of a strip-shaped support coated with adhesive on one side. This support has an adhesive layer on the material edge strip 4
Place the material on the edge band facing ゜. The support is then peeled off, leaving adhesive on the material edge band 40.

The transfer adhesive is primarily drawn from a roll and placed on the material edge strip 40 for the required length.

Heat-resistant adhesives are used if the joints of the material webs are subjected to thermal effects, for example when passing through a laser printer.

A continuous web consisting of a spliced material web as described above can of course be fed not only to a printer but also to another processing station for continuous webs.

(Effects of the Invention) The present invention provides that when a stack of paper is sent with one corner forward from one table plate to the other table plate through a passage toward a separating element, the separating element is moved between the stacked layers. It enters the stack and separates the bottom part of the stack of paper, which consists of a large number of zigzag folds, from the part above it, making it possible to easily and reliably perform the separation work.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a device that joins paper webs folded in a zigzag pattern to form a continuous web, Figures 2.3 are side views and perspective views of the main parts of the device shown in Figure 1, and Figure 4 is 1 is a plan view of the support table of the apparatus shown in FIG. 1; FIGS. 5 to 8 are side views or perspective views of essential parts of the apparatus of FIG. Figure 9 is a perspective view showing the joint between two material workpieces, Figures 10 and 11 are side views showing modifications of the device shown in Figure 1, 35, 34--. Material web, 57-=-- Line of weakness, 38-- Single piece, 40-- Material edge band, 43-- End, T--・Separation line

Claims (1)

[Claims] 1) The lowest part (39) of the rectangular parallelepiped stacked paper (30) formed by folding the material web (33) in a zigzag manner along the horizontal weakening line (37) is stacked on top of it. paper(
30) A method of separating from a stacked paper (30)
) is placed on a stand (2) and slid on a path (4) transverse to the sliding direction of the stacked paper, and a single piece of material web (38) consisting of a number of zigzag-folded material webs (38) of the stacked paper (30) is produced. In the device in which the bottom part (39) is dropped from the passage, the stacked paper (30) is placed in the passage with one corner (30c) in front.
4) towards the effective separating element (27, 44), the separating element enters between the stacked layers and the separating element separates the stacked paper (27, 44) without separating the material web (33).
30) is diverted into the channel (4) and the separated bottom paper stack portion (39) is collected in the collection container (11) and then this stack is A method characterized in that the paper part (39) is removed from the collection container again mainly by hand. 2) At the end (3) of the bottom separated paper stack (39)
8″′) to one end (38, 38) of the second material web (34).
3) The method according to claim 1, characterized in that the end portion (39) of the separated bottom stacked paper portion (39)
The last named end (38, 38") is folded into this stack in order to join it with the end (38, 38) of the second web of material (34) which is zigzag folded into a stack of paper (31). 3. Method according to claim 2, characterized in that it is lifted up from the paper (31). 4) Pre-folded material webs of predetermined length (32, 33, 34
) is a continuous web (
Claim 1 characterized in that it is formed in p).
3. The method according to any one of items 3 to 3. 5) comprising a platform (2) for the paper stack (30) with a passage (4) transverse to the path of travel of the paper stack (30) to be subdivided, for directing the material web (33) into transversely extending lines of weakness (37); In a device for separating a bottom part (39) of a rectangular parallelepiped stacked paper (30) formed by folding it in a zigzag along a passage (
4) and moves towards the separating element (27, 44) with one corner (30c) in front
) in such a way as to enter between the stacked layers of the paper stack (30) and divert the lowest part (39) of the stack (30), consisting of a number of zigzag material web sections (38), into the channel (4). characterized in that it comprises elements (27, 44) and a collection container (11) arranged below the passageway (4) for collecting the separated bottom stacked paper portion (39). Device. 6) The device according to claim 5, characterized in that the depth of the collection container (11) is variable. 7) A rod (12) under which the collection container (11) can mainly rotate.
7. Device according to claim 6, characterized in that it is closed by a height-adjustable floor (13) formed by. 8) Claims 5 to 7, characterized in that the separating element is constructed as a rim plate (27) of predominantly wedge-shaped cross section oriented in the direction of movement (E) of the stack of sheets (30). Apparatus according to any of paragraphs. 9) The separating element (44) has a separating finger (46) driven in rotation about an axis (45a) extending substantially in the longitudinal direction of the passageway (4). The device according to any of paragraph 7. 10) Device according to any one of claims 5 to 9, characterized in that the platforms (2, 3) are equipped with a pressure medium outlet (7) forming an air cushion. 11) A guide member (2, 3) extending over the passage (4)
28), which has a first guide surface (28b) in front of the channel (4), which forms an acute angle with respect to the longitudinal direction of the channel, as seen in the direction of movement (E) of the stack of sheets (30). 11. Device according to any one of claims 5 to 10, characterized in that a second guiding surface (28a) following this extends approximately at right angles to the longitudinal direction of the channel (4). 12) The platform has two supports (
2, 3), of which stacked paper (30
), the support (2) disposed in front of the passage (4) is lower than the other support (3) when viewed in the direction of movement (E) of the passageway (4). The device described in any of the above. 13) A pre-folded material web of a predetermined length (32, 33, 3
4) is formed into a continuous web to be fed to a printer, mainly a high speed printer.
13. The device according to any of clauses 12.