JPS63176257A - Method and device for joining terminal of two material web - 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 Field of the Invention The invention relates to a method and a device for joining the ends of two material webs according to the preamble of claim 1 or 5.

(Problem to be solved by the prior art/invention) A transverse perforation is provided, and the material webs to be joined to each other, which have been folded in advance along the perforations, are overlapped with their ends touching each other, and then an adhesive tape is used. It is known to join the ends of the levers together (European Patent Publication No. MU-i1:42619,
European Patent Publication No. 134335, US Patent No. 4289336). The adhesive tape can be provided with perforations parallel to the transverse perforations of the material web, which facilitate the subsequent folding and separation of the material web.

However, despite this perforation, a continuous web consisting of material webs joined to each other cannot be folded very well at any bond point when folding along the transverse perforations of the material web; It has already been folded into a zigzag pattern before being spliced along the perforations. The material web has a "fold memory" due to this preliminary folding, and the zigzag folds are likely to occur again after the material web is spliced. However, since the adhesive tape is not pre-folded at the joint, such "memory of the fold" is missing.

Also, the formed continuous web cannot be separated as easily as later along the transverse perforations of the material web at the bonding point.

The use of non-perforated adhesive tips correspondingly increases the aforementioned problems when folding and separating the material web along the adhesive points.

Furthermore, when the material webs joined together with adhesive tape are passed through a laser printer, the adhesive of the adhesive tape becomes thermoplastic due to the action of heat, so that the bond between the material webs is either complete or the material webs no longer hold strongly enough. It peels off to the extent that it no longer fits.

The invention therefore seeks to join one or more material webs with perforations (lines of weakness) to each other as simply and reliably as possible, without making it difficult to later fold or separate the formed continuous web at the joining point. The purpose is to provide a method and device that can

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

Folding and separation at this joint is done by applying adhesive along the area following the existing perforation and gluing the ends of the material web together.

Since the line of weakness adjacent to the joint is exposed as well as the remaining lines of weakness, it can be done virtually the same as along the remaining lines of weakness. The "fold memory" present from the pre-fold is maintained even after joining this material web.

By eliminating adhesive tapes that have to be positioned outside the material webs to be seamed.

The material webs can also be easily handled during joining.

Since the material webs are glued together (and not by adhesive tape), it is possible to use suitable heat-resistant adhesives whose adhesive effect is not impaired even by the action of heat. The material webs joined together according to the invention can therefore also be passed through a laser printer, where the material webs are heated, without any problems.

The method and apparatus of the present invention are particularly suitable for forming continuous webs for feeding into printers, primarily high speed printers, primarily from pre-folded lengths of material webs.

Preferred developments of the subject matter are evident in the dependent claims.

(Function) The frontmost paper (3B') of the paper web (34) provided with the horizontal perforation (37') is separated from the horizontal perforation (37') by the adjacent separation line (T) at a small distance from the paper web (34). Cut along K. Adhesive is applied to the paper edge band (40) thus formed. One end of another paper web is then placed on the paper edge band (4G) provided with the adhesive coating (42) in such a way that the transverse perforation (37') is not obscured. The two paper webs are thus joined together leaving a transverse perforation (37') i. This allows the webs of material joined to each other to move without difficulty at this injection perforation (37').
) can be folded or separated along. The "memory of the fold p" formed on the horizontal perforation (!17) by folding in advance is maintained. (FIG. 7) (Example) The present invention will be described in detail below with reference to the drawings.

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

In this device, a stand 1 has two table plates 2 and 3.

Table plates 2 and 5 are spaced apart, 1 table plate 2
．． 3, a gap 4 is formed extending in the lateral direction. Both table plates 2, 5 can be arranged at the same height. However, in certain cases it may be advantageous for the table plate 2 to be somewhat lower than the table plate 3. As shown in FIG. 5, both table plates 2, 3 are provided with a 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 plates 2 and 3 to communicate the outside with the hollow chamber 5, and this passage is closed by a ball 8 (FIG. 5). Compressed air supplied to the hollow chamber 5 and discharged from the discharge lower generates an air cushion. The purpose of the air cushion 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 2.6, the structure of which can best be seen in FIG. This collection container 11 has a pair of rods 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 15. The rods 14 can therefore be pivoted together in the direction of the arrow A or in the direction of the arrow A, and thus the depth of the collection container 11 can be adjusted.

A support table 16 is placed above both table plates 2 and 3 on support column 1.
It is fixed to 7. The support column is capable of sliding back and forth in the direction of arrow B. This support arm 18 extends parallel to the support table 16. A carriage 19 (FIG. 5) 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 disc blade 22 supported on a rotary AF rudder.

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

Overhanging from the support table 16 are chips 24 and 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 clear later on, the distance between both chip rows corresponds to the width of the material web to be treated, while
Inside the row, the distance between the tips 24, 25 corresponds to the perforations in the web of material to be treated. The table part 16a of the support table 16, which in the illustrated embodiment is formed by a metal frame, adjoins the separator 20 and the adhesive applicator 21, is located in the area of this part between the chips 24, 25. It is provided with a discharge hole 26, which is only schematically shown. Only some of the holes are shown in FIG. This hole communicates with a vacuum pump (not shown).

End face 3a of table plate 5 facing table plate 2 (second
A rim plate 27 of wedge-shaped cross section is fixed to FIG. The guide edge plate 28 is fixed to the longitudinal machining bolt on the front side of the table board 2゜3 in Figure 1 by a stone, but this is only shown in Figure 4, and is made easier to see in the remaining figures. Ama is omitted. The guide edge plate 28 has a first guide surface 28a 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 clearly seen in FIG. 4, following this first guide surface 28a, a second guide surface 28b bent from the corner 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.
9,3.3. A pile of stacked papers 31 is placed on the table board 2. The paper stacks 29.30, 31 are formed by zigzag folded paper webs 32, 33.64, respectively. Paper web 52.33.34 is wire type (spread hole)
33, 56, the line of weakness is determined and the material webs 52, 53
．． 34 f transverse perforation 5 dividing into individual web pieces 68
7. The folding of the paper webs 52, 35, 34 takes place along this transverse perforation 37. Three material webs 32, 33, 34 are spliced together to form one continuous web P.
This is pulled out from the stacked paper 29 by the feed drive device 10 and supplied to a high-speed printer, such as a laser printer, by a well-known method (not shown).

A detection arrangement (not shown), for example a photodetector, is arranged in the guide edge plate 28 for monitoring the presence of a stack of paper on the table plate 2.3, which detects when the stack is not being fed. 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 2.5 can be selected to be essentially arbitrary, and it is also possible to prepare three or more stacks of paper on the table board 3.

Hereinafter, a description will be given of how to join the zigzag folded paper webs to each other based on the paper webs 33 and 34. Figures 4 to 9 are particularly useful for this purpose.

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 30Fi 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 the corner 30Ci in front. In order to place the stacks ie and so in the correct position, the longitudinal end surfaces 50b 1 &
: Touch the guide surface 28b of the guide edge plate 2nd with your hand (4th
figure). The now slanted stack of paper is 6q in Figures 4 and 5.
It is shown by . The paper stack 50' is now fed along the guide surface 28b, ie in the direction of the arrow E. During this feeding, the corner 30c defined by the end faces 30b and 50a reaches within the action range of the am plate 270 stretched into the gap 4. As the stack 60' is further advanced, this separating edge plate passes between the two overlapping web strips 38, separating the lower portion 59 (FIG. 5) of the stack 30' from the rest of the stack. This lower part 39 consists of several zigzag folds. Next, the stacked paper 30' is reversely rotated again while being further fed, so that the longitudinal end surface 50b of the stacked paper 30 is brought into contact with the guide surface 28a of the guide edge plate 28, as is clear from FIG. The stack of sheets 30 is then fed in the direction of arrow E'. In this case, the one-separation edge plate 27 completely strips off the aforementioned stacking drop 39. Due to the wedge-shaped design of the separating edge plate 27, this stripping of the stack drop 39 is carried out without damaging the paper web 35.

The stack drop portion 39, which has been stripped off as described above, then falls into the collection container 11, as seen in FIG. The floor grate 15 is adjusted in advance to the height of the paper by appropriately rotating the rod 14, and the stack lowering part 39 that has been peeled off f' falls into the collecting container 11 simply because it falls into the collecting container 11. It is only to the extent that it can be easily taken out again by hand. The depth of the collector 11 is ideally adjusted so that it corresponds to the height of the web strip 38, ie the distance between adjacent transverse 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 50. The remaining paper stack can be fed further in the direction of arrow E' towards the wall 9 if this is desired. Next, place the stacked paper portion 39 on the table board 2.
Or put it on table board 3. The last web piece 38'' of the paper stack section 59 is also the last piece of the paper web 35 and must now be joined to the beginning of the next stack 31.The next ff1 stack 31 is now attached to the table board. 2
I'll put it on. The column 17 with the support table 16 is brought into the working position as shown in FIG. The paper web 34 forming the paper stack 31 is now placed on the support table 16 with its upper two web sections 5B', 5B'', and these two sections 68'
.

A transverse perforation 37' separating the blades 38'' will be adjacent to the working plane of the disc knife 22, as can be seen from FIG.

Therefore, this plane of action of the disc cutter 22 is at the horizontal perforation 57'.
It passes through the frontmost single nib piece 58' spaced apart from the nib. The positions of both paper web pieces 38' and 38'' are adjusted by engaging the tips 24 and 25 in the binding holes 35 and 36 (Fig. 7).
Hold it firmly at part 16a.

While the web pieces 58', 38'' are resting on the support table 16, the carriage 19 in its rear end position is now moved in the direction of the arrow C. In doing so, the adhesive container 25fc is manually moved towards the support table 16 in the direction of the arrow. The adhesive applicator rung 23a is brought into contact with the paper edge strip 40 adjacent to the transverse perforation 37'.While the carriage 19 is being fed in the direction of arrow C, the web single piece 58' is now passed through the disc cutter 22; Separation occurs along a separation line T extending parallel to and spaced from the transverse perforation 37'. A border band 40 is formed. At the same time as cutting, the adhesive 41 contained in one adhesive container 23 is applied to the paper green band 40. Since it is supported at the front, the adhesive is applied 42 to the paper edge band 40.
As can be easily seen in FIG. 7, this is done before cutting out the remaining first web piece 58'.

After the cutting process is completed, the cut portion of the web single piece 68' 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 lamp, emit light to allow inspection of the applied adhesive. Depending on the type of particles added to the adhesive 41, different types of lamps than fluorescent rungs are 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.

1'# Grasp the last single web piece s8d of the stacked paper portion 39 that has been peeled off in advance from the stacked paper 30 as described above with your hands, and make sure that the end edge 38a is just in front of the horizontal perforation 57'. Support table 16i to prevent it from being hidden.
C (Figure 8). This position adjustment of the web single piece s8//l is easily possible by relying on the pin 24.25 'i which engages the line 33.56 of the paper web 53. The paper web 35 is now the last web single piece. The end region 45 of Sa/// is laminated onto the adhesive coated paper edge band 40 of the following paper web 64. Compress both overlapping areas 40°45 by hand. Or, if the carriage 19 is in the direction of arrow C'
It is also conceivable to provide the carriage 19 with a press (not shown) which causes the desired suppression when retracting in the direction. It is also naturally possible to provide the support arm 18 with a press machine that is separate from the carriage 19.

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 sheets 61, which has been placed on the table board 2, is then slid onto the table board 3, now with its corner facing forward, over the gap 4, in which case it is stacked by the separating edge plate 27, as already mentioned above. The bottom part of the paper 31 is peeled off and the collection container 1
Fall within 1. Then the end of the paper web 34 as described above.

It is joined to the beginning of the next paper web which is placed in a stack on the table board 2. The previously described process of peeling off the bottom zigzag layer of the paper stack and laminating it with the next paper web is repeated as described above.

The above-described apparatus and method for seaming a complete 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 organized 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 horizontal perforations are not hidden when the paper webs are spliced, it is easily possible to fold the spliced paper webs into multiple layers at the joints. Since the "fold memory" of the paper web which was previously folded to form a stack is maintained at the joint, the spliced material web can later be folded again without difficulty at the joint. This can be easily seen from FIG. 9, which shows the joining area between paper webs 33, 34. It can be seen from this figure that the last web piece 38/// of the paper web 33 does not cover the transverse perforation 37'.

A modification of the apparatus shown in FIGS. 1 to 8 is shown in FIG. 10.11 in a diagram corresponding to FIGS. 2 and 6. In this variant, instead of the fixed separating edge plate 27, a rotationally driven separating element 44 is provided in the gap 4 between the two table plates 2, 3, and the stack is fed from the table plate 2 to the tear-pull plate 5. It differs from the embodiment of FIGS. 1-8 in that the paper advance plate 30C (FIG. 4) moves toward this separating element.

This separating element 44 has a support 45 which can be rotated in the direction of arrow F in a manner not shown, to which the N1 finger 43 is attached in such a way that it somewhat overhangs the cylindrical support 45.

As shown in FIG. 11, this separation finger 43 penetrates between the zigzag layers of the stack of papers 5o being fed, and as already explained on the basis of FIG.
Peel off the bottom part 59 of. The embodiment of FIGS. 1 to 8 has the advantage over the variant of FIG. 10.11 that one drive of the separating member is not required.

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. The above types of gluing stations are:

instead of in front of the printer as shown.

It is also possible to provide it in the key glinter itself, where there is sufficient space.

Furthermore, if the roles of the two material webs that are joined to each other are exchanged at the time of lamination, and if we refer to Figs.
r: After applying adhesive to this, the subsequent material web 34 is attached to the paper binding band 4 so that the horizontal perforations 37 are not hidden.
Of course, it is also possible to place it at 0. In this case, the separator 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 transfer adhesive is used to apply the material edge strip 40.
It is also possible to provide an adhesive coating 42. Transfer 1 adhesives suitable for this purpose consist of a strip-shaped support coated with adhesive on one side. This support places the adhesive layer on the material edge strip 40 with the adhesive layer directed towards the material edge strip 40 . 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 web of material spliced 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) In the present invention, one end of another paper web is then placed and bonded to the paper binding strip provided with the adhesive coating, so that the material webs bonded to each other are can be folded or separated along this horizontal perforation line without any difficulty.

[Brief explanation of the drawings] Figure 1 is a perspective view of a device that combines zigzag (folded paper webs) into a continuous web. 4 is a plan view of the support table of the apparatus shown in FIG. 1. FIGS. 5 to 8 are diagrams showing the various stages of joining together the web of material folded in a zigzag manner into stacked sheets. 1 is a side view or a perspective view of the main part of the apparatus shown in Fig. 1. Fig. 9 is a perspective view showing the joint tube F9Tfr between two material workpieces. Fig. 10.11 shows a modification of the apparatus shown in Fig. 1. Each side view shown. 33.34... Material web, 37'... Line of weakness, 3
8'...Single piece. 40... Material edge band, 43... Terminal +p... Separation line Patent applicant jog. Hunkeller-A-Game C (

Claims (1)

[Claims] 1) In a method of joining the ends of two material webs that have been folded in a zigzag manner in advance mainly along this line of weakness by providing a transverse line of weakness, one end of one first material web (34); Single piece (
38') along a separation line (T) spaced from the adjacent line of weakness (37'), leaving a material edge strip (40) tangent to this line of weakness (37'), and then the other second A method characterized in that one end (43) of the material web (33) is brought together with the material edge band (40) leaving said line of weakness (37') and bonded thereto by applying adhesive. 2) Hold firmly the material edge strip (40) of the first material web (34) when joining the two material webs (33, 34) and place the end (43) of the second material web (33) on this; A method according to claim 1, characterized in that: 3) cutting off mainly the front single piece (38') of the first material web (34) into the material edge band (40) of the first material web (34) before joining the two material webs (33, 34); 3. A method according to claim 1, characterized in that the adhesive (42) is applied at the same time as the application of the adhesive (42). 4) Mainly pre-folded material webs (32, 33,
34) is formed into a continuous web to be fed to a printer, primarily a high speed printer.
3. The method according to any one of items 3 to 3. 5) In an apparatus for joining the ends of two material webs which have been folded in a zigzag manner in advance mainly along this line of weakening with a transverse line of weakening, a single piece (
38') along a separation line (T) spaced apart from the adjacent line of weakness (37'), a separator (20) for separating the material edge band (40) in contact with the line of weakness (37'); , the material edge band (40) of the first material web (34) or the end region of the other second material web (33) superimposed thereon (
adhesive applicator (21) that applies adhesive (42) to
). 6) Two material webs (33, 34) to be joined to each other
a support member (16) for the separator (16) and a line of weakness (37') between two successive pieces (38'38'') of the material web.
a positioning arrangement (24) holding the first material web (34) in a position extending a distance from the range of action of the positioning arrangement (20);
, 25, 26). 7) characterized in that the positioning arrangement has pins (24, 25) arranged on the support member (16) and adapted to engage in the edge holes (35, 36) of the material webs (33, 34); An apparatus according to claim 6. 8) The first material web (34) is supported by the member (1) by negative pressure.
Device according to claim 6 or 7, characterized in that it is firmly held by 6). 9) The separator (20) has a separating member (22) which is reciprocatable primarily perpendicularly across the longitudinal direction of the first material web (34) and which is arranged primarily above the support member (16). 9. Device according to any one of claims 5 to 8, characterized in that it has mainly a cutting member and in particular a disc knife. 10) The adhesive applicator (21) applies the first material web (34) to the first material web (34).
Claim 5, characterized in that it has an adhesive application member (23) which is reciprocatable primarily transversely at right angles to the longitudinal direction of ) and which is arranged primarily above the support member (16). The device according to any one of items 1 to 9. 11) Claims 9 or 10, characterized in that the separating member (22) and the adhesive application member (23) are fixed to a common slidably supported support (19).
Equipment described in Section. 12) The sliding direction of the support (19) that causes separation (
As seen in C), the adhesive application member (
Claim 1 characterized in that it supports 23)
The device according to item 1. 13) Device according to any one of claims 5 to 12, characterized by a press which compresses the material web regions (40, 43) which are primarily fixed to the support (19) and are to be laminated together. 14) Mainly disposed on the support (19) and coated with adhesive (
14. Device according to any one of claims 5 to 13, characterized by a detection arrangement for monitoring 42). 15) Mainly pre-folded lengths of material webs (32, 33
, 34) are formed into a continuous web that is mainly fed to high-speed printers.
15. The device according to any one of items 1 to 14. 16) A horizontal weakening line (37) is provided, and this weakening line (37) is mainly used.
) consists of at least two material webs (32, 33, 34) previously folded in a zigzag manner along , the material web (3) tangent to the line of weakness (37')
A continuous web formed by applying an adhesive and bonding the material edge band (40) of 4).