JP2010058440A - Gluing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gluing apparatus by which the gluing work for paper sheets can be automated, and in addition, which can reduce the generation frequency of inferior articles. <P>SOLUTION: A booklet bundle 221 is held with the gluing surface facing downward. A first coating roller 32 on the outer peripheral surface of which a glue 43 is fed applies the ultraviolet curing type glue 43 on the gluing surface by making the glue 43 on the outer peripheral surface penetrate in the gluing surface when passing under the gluing surface of the booklet bundle 221. Then, a glue removing brush 52 passes under the gluing surface, and the excessive glue 43 adherent to the gluing surface is scraped off. Then, a glue hardening section 53 passes under the gluing surface, irradiates the glue 43 on the gluing surface with an ultraviolet ray to harden the glue 43. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a gluing device, and more particularly, to a gluing device for applying gluing to the end surfaces of a plurality of stacked sheets (paper sheets).

  For various application documents and notification documents, etc., an entry form (application form, notification form, etc.), a copy for the applicant, contract agreements, precautions, and a set of other forms (hereinafter referred to as a booklet) are glued together. There is something bound to. The bound booklet can be peeled off one by one like a stationery if necessary.

  Conventionally, these booklets have been produced manually as follows. First, several sets of printed sheets (booklets) are stacked and stacked on a table, and the pasting surfaces (sheet end surfaces) are aligned. Then, in a state where the sheet is pressed and held from above, when the operator applies liquid glue to the gluing surface with a brush and the applied glue is dried, the gluing of the booklet is completed. Here, since the glue part of the first sheet of the booklet is impregnated with a release agent in advance, there is sufficient space between the first sheet of a booklet and the last sheet of the booklet above it. If a light force is applied to a bundle of glued booklets without gluing, each booklet will fall apart.

  However, in the conventional method of applying glue by brush manually, not only the work efficiency is poor, but also the application of glue becomes non-uniform, and the variation in finishing becomes large depending on the skill level of the operator. There was a bug. For this reason, the booklet is not glued securely in areas where the glue is thin, and the booklet may be scattered at the inspection stage or before filling in the booklet for application documents, etc., and the return rate of the booklet is high. Was a factor.

  On the other hand, in order to make it difficult for the booklet to be scattered, a sufficient amount of glue may be applied to the gluing surface. However, in application documents etc., it is necessary to separate the applicant's copy etc. at the glued part after filling in, but if the amount of glue applied is too large, it will not be possible to separate the paper unless a strong force is applied. There was a risk of tearing.

  In addition, there is a problem that the glued surface is bent and waved by the moisture of the glue before the applied glue dries.

  The present invention has been made in view of the technical problems as described above, and the object of the present invention is to be able to automate the pasting operation of paper sheets and to reduce the occurrence frequency of defective products. An object of the present invention is to provide a gluing device that can be used.

  In order to achieve such an object, the gluing device of the present invention is a gluing device for binding the end faces of the stacked paper sheets with glue, the glue container storing glue, and the glue An applicator roller that is supplied with glue from the container to the outer peripheral surface, and a mechanism for moving the applicator roller while rotating. It is configured so as to move in parallel with the end face of the paper sheet so as not to come into contact with the application roller but to contact with the coating roller.

  According to the gluing device of the present invention, the glue supplied to the outer peripheral surface of the application roller can be uniformly applied to the end surface of the paper sheet by moving the application roller parallel to the end surface of the paper sheet. Therefore, the gluing operation can be automated, and the occurrence of defective products can be reduced. Also, the application roller applies the glue so that the end face of the paper sheet contacts the glue on the outer peripheral surface of the application roller and does not contact the application roller, so the application roller contacts the end face of the paper sheet. It is possible to apply the paste uniformly without damaging the end face of the paper sheet and without preventing the application roller from contacting the end face of the paper sheet and preventing the glue from contacting the end face of the paper sheet. it can.

  Further, in the embodiment of the gluing device of the present invention, the application roller moves while rotating so that the portion facing the gluing surface is relatively stationary with respect to the gluing surface. Yes. According to such an embodiment, the glue on the outer peripheral surface of the application roller soaks into the end face of the paper sheet in a state of being stationary with respect to the end face of the paper sheet, so that stable glue application can be realized. it can.

  Another embodiment of the gluing device of the present invention includes a gluing remover for scraping off excess gluing of the gluing applied to the gluing surface. According to this embodiment, since excess glue can be removed, the finish of the end face of the glued paper sheets can be improved.

  Yet another embodiment of the gluing device of the present invention includes a gluing curing unit for promoting a curing reaction of the gluing applied to the gluing surface. According to such an embodiment, since the glue can be cured immediately after the glue is applied, it is possible to prevent the glue from gradually and permeating into the paper sheet after the glue is applied, and to make the penetration depth of the glue uniform. The quality of gluing can be improved.

  Yet another embodiment of the gluing device of the present invention is a gluing remover for scraping off excess gluing out of gluing applied to the gluing surface by providing a traveling base that passes through a position facing the gluing surface. And a glue curing portion for promoting the curing reaction of the glue applied to the gluing surface is mounted on the same traveling base. According to such an embodiment, since the structure can be simplified as compared with the case where the glue remover and the glue curing unit are moved separately, the cost of the apparatus can be reduced.

  Still another embodiment of the gluing device of the present invention includes two coating rollers and a glue container for supplying different gluing to the outer peripheral surface of each coating roller, and each coating roller has the gluing surface respectively. The vertical distance to the plane that contains it can be adjusted. According to such an embodiment, two types of glue can be selectively applied. Alternatively, different pastes can be applied in layers.

  Further, if the two application rollers are rotated at the same rotational speed by one motor, the structure can be simplified as compared with the case where each application roller is driven by a separate motor, and the cost of the apparatus is reduced. Can be made cheaper.

  Still another embodiment of the gluing device of the present invention includes a table device that holds the stacked paper sheets together. According to this embodiment, it is possible to perform the gluing operation by aligning usages in the table device and holding the paper sheets in that state.

  Further, when the table device is rotatable between a state in which the table surface is horizontal and a state in which the table surface is vertical, the paper sheet is placed on the table with the table surface being horizontal. After loading into the apparatus and holding the paper sheets together, the table apparatus can be rotated to stand the paper sheets. Therefore, it is possible to perform a gluing operation in a state where the paper sheets are erected, and it becomes easy to apply glue.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

(Outline of gluing device)
FIG. 1 is a schematic perspective view showing a booklet manufacturing system 201 provided with a gluing device 21 (wireless binding machine) according to an embodiment of the present invention. The booklet manufacturing system 201 includes a cutting machine 211 and a gluing device 21. The cutter 211 is a general one, and includes a blade 212 for cutting above the cutter table 213. The booklet paper is subjected to predetermined printing in a printing process, and a bundle of a plurality of booklets (hereinafter referred to as a booklet bundle) is supplied to the cutting machine 211. The booklet bundle placed on the cutting machine table 213 is cut on the four sides by the blade 212 and trimmed to a predetermined size.

  The gluing device 21 has a gluing application unit 31 for applying gluing (emulsion) along one end surface of the booklet bundle, and a gluing removal drying unit 51 for removing excess gluing and curing the applied gluing. And a booklet bundle holding unit 71 (table device) that aligns and holds the booklet bundle at a predetermined position. Each of the paste applying unit 31 and the paste removing / drying unit 51 is configured to be able to travel horizontally along the rail 22 provided in the casing of the gluing device 21. The glue application unit 31 includes a first application roller 32 and a second application roller 33, and applies an adhesive to the pasting surface with one of the application rollers 32 and 33 while traveling. The glue removal drying unit 51 includes a glue removal brush 52 (glue remover) for removing excess glue, and a glue curing unit 53 for curing the applied glue. The booklet bundle holding unit 71 is rotated together with the rotary shaft 72 by a rotation motor 73 and can be rotated between a horizontal posture and a vertical posture.

  The gluing device 21 is installed so that the table surface of the cutting machine table 213 and the table surface of the booklet bundle holding unit 71 in the horizontal posture are at the same height, and the booklet in the horizontal posture with the surface of the cutting machine table 213. The table surface of the bundle holding unit 71 is connected without a gap by a connecting table 214 having the same height. Therefore, the booklet bundle 221 trimmed by the cutting machine 211 passes through the connecting table 214 and is sent to the horizontal booklet bundle holding unit 71. The booklet bundle 221 may be moved to the booklet bundle holding unit 71 manually or may be pushed in with a pusher or the like.

  As will be described in detail later, the booklet bundle 221 sent to the booklet bundle holding unit 71 is aligned by the booklet bundle holding unit 71 and held by the booklet bundle holding unit 71. Next, the booklet bundle holding unit 71 is rotated 90 degrees, and the booklet bundle 221 is set up so that the glued surface faces downward. Thereafter, the glue application unit 31 travels under the booklet bundle 221, and the first application roller 32 or the second application roller 33 applies the glue to the gluing surface of the booklet bundle 221. Next, the glue removing and drying unit 51 runs under the booklet bundle 221, removes excess glue with the glue removing brush 52 and cures the glue applied by the glue curing unit 53 to complete the gluing operation.

(Structure of glue application part and glue removal drying part)
The outline of the gluing device 21 according to the present embodiment is as described above. Hereinafter, a specific configuration of the gluing device 21 will be described. First, the structure of the glue application part 31 and the glue removal drying part 51 is demonstrated concretely. FIG. 2 is a partially broken front view showing the structures of the glue applying unit 31 and the glue removing / drying unit 51.

  The glue application unit 31 causes the traveling base 34 to travel along the rail 22. That is, a slider (not shown) provided on the back surface of the traveling base 34 slidably holds the rail 22, and a pinion gear (rotated by a traveling motor 35 (servo motor)) is rotated on the rack provided on the rail 22. (Not shown). Therefore, the traveling base 34 can be moved horizontally along the rail 22 at a constant speed by rotating the pinion gear with the traveling motor 35.

  A glue container 41 is fixed to the upper surface of the traveling base 34. The inside of the glue container 41 is divided into two parts, one being a first glue reservoir 42 for collecting booklet glue 43 and the other being a second glue tank 45 for storing the glue 45 for binding. A paste reservoir 44 is formed. The glues 43 and 45 are desirably ultraviolet (UV) curable adhesives, but may be thermosetting adhesives. Further, the paste 43 and the paste 45 are different in viscosity and the like.

  A first application roller 32 is disposed above the first glue reservoir 42, and the lower part of the first application roller 32 is immersed in the glue 43. The first application roller 32 is a stainless steel cylinder having a smooth surface. A roller holding part 36 is installed behind the first glue reservoir 42, and the first application roller 32 is attached to the center of a rotation shaft 32 a provided on the roller holding part 36.

  Further, the first application roller 32 can be moved up and down by extending and retracting the lifting and lowering servo cylinder 39, and the vertical position adjustment can be performed. For this purpose, the first application roller 32 may be moved up and down together with the roller holding portion 36 by the lifting servo cylinder 39, and the rotating shaft 32a and the first shaft are moved by the lifting servo cylinder 39 while the roller holding portion 36 is kept stationary. The application roller 32 may be moved up and down.

  Similarly, a second application roller 33 is disposed above the second glue reservoir 44, and the lower part of the second application roller 33 is immersed in the glue 45. The second application roller 33 is a stainless steel cylindrical body having a smooth surface, and has the same diameter as the first application roller 32. A roller holding portion 37 is installed behind the second glue reservoir 44, and the second application roller 33 is attached to the center of a rotation shaft 33 a provided on the roller holding portion 37.

  Further, the second application roller 33 can be moved up and down by expanding and contracting the lifting and lowering servo cylinder 40, and the vertical position can be adjusted. For this purpose, the second application roller 33 may be moved up and down together with the roller holding portion 37 by the lifting servo cylinder 40, and the rotating shaft 33 a and the second shaft are moved by the lifting servo cylinder 40 while the roller holding portion 37 is kept stationary. The application roller 33 may be moved up and down.

  The first application roller 32 and the second application roller 33 are driven by a single roller rotation motor 38 (servo motor), and rotate at a rotational speed equal to the arrow direction and at a relatively low speed. Further, the rotational speeds of the first application roller 32 and the second application roller 33 can be controlled by controlling the rotation speed of the roller rotation motor 38. Thus, when the first application roller 32 rotates at a constant speed, a film of glue 43 is formed on the outer peripheral surface of the first application roller 32. Similarly, when the second application roller 33 rotates at a constant speed, a film of glue 45 is formed on the outer peripheral surface of the second application roller 33.

  A base of a film thickness adjuster 46 is attached to the roller holder 36. The tip of the film thickness adjuster 46 is curved along the outer peripheral surface of the first application roller 32, and faces the outer peripheral surface of the first application roller 32 over the entire length of the first application roller 32. Therefore, the film thickness of the glue 43 formed on the outer peripheral surface of the first application roller 32 is determined by the size of the gap between the curved tip of the film thickness adjuster 46 and the outer peripheral surface of the first application roller 32. In addition, by adjusting the position of the film thickness adjuster 46, the film thickness of the paste 43 on the outer peripheral surface of the first application roller 32 can be adjusted.

  Similarly, the base of the film thickness adjuster 47 is attached to the roller holding part 37. The tip of the film thickness adjuster 47 is curved along the outer peripheral surface of the second application roller 33, and faces the outer peripheral surface of the second application roller 33 over the entire length of the second application roller 33. Therefore, the film thickness of the glue 45 formed on the outer peripheral surface of the second application roller 33 is determined by the size of the gap between the curved tip of the film thickness adjuster 47 and the outer peripheral surface of the second application roller 33. Further, by adjusting the position of the film thickness adjuster 47, the film thickness of the glue 45 on the outer peripheral surface of the second application roller 33 can be adjusted.

  The paste removing / drying unit 51 causes the travel base 54 to travel along the rail 22. A slider (not shown) provided on the back surface of the travel base 54 slidably holds the rail 22, and a rack provided on the rail 22 meshes with a pinion gear (not shown) that is rotated by a travel motor 55. ing. Therefore, the traveling base 54 can be moved horizontally along the rail 22 at a constant speed by rotating the pinion gear with the traveling motor 55.

  A waste liquid receiver 58 is fixed on the upper surface of the traveling base 54, and a paste removing brush 52 is disposed above the waste liquid receiver 58. The paste removing brush 52 is a brush planted in a cylindrical shape. A brush holding part 56 is installed behind the waste liquid receiver 58, and the glue removing brush 52 is attached to a rotation shaft 52 a provided on the brush holding part 56. The glue removing brush 52 is rotationally driven by a motor (not shown) provided in the brush holding portion 56 and rotates in the direction of the arrow.

  Further, the glue removing brush 52 is moved up and down by extending and retracting the lifting and lowering servo cylinder 57, and the position thereof is adjusted up and down. For that purpose, the glue removing brush 52 may be moved up and down together with the brush holding section 56 by the lifting servo cylinder 57, and the rotating shaft 52a and the glue removing brush are moved by the lifting servo cylinder 57 while the brush holding section 56 is kept stationary. 52 may be moved up and down.

  A cleaning blade 59 is attached to the outer surface of the brush holding portion 56, and the tip of the cleaning blade 59 is in contact with the paste removing brush 52 over the entire length of the paste removing brush 52. If the excess glue 43 and 45 removed by the glue removing brush 52 remains attached to the glue removing brush 52, the glue 43 and 45 attached to the glued surface cannot be removed. The glue 43 and 45 adhering to is immediately scraped off and discharged from the lower end into the waste liquid receiver 58.

  The glue curing unit 53 is installed on the upper surface of the traveling base 54. As the glue curing unit 53, when the glues 43 and 45 are ultraviolet curing adhesives, an ultraviolet irradiation lamp is used to irradiate ultraviolet rays upward. Alternatively, when the glues 43 and 45 are thermosetting adhesives, a blower that blows hot air may be used as the glue curing part 53.

(Structure of booklet bundle holder)
Next, the structure of the booklet bundle holding unit 71 will be specifically described. 3, 4, and 5 are a side view, a front view, and a plan view of the booklet bundle holding unit 71. FIG. 6 is a schematic view showing a structure for positioning and holding the booklet bundle 221 in the booklet bundle holding unit 71, as viewed obliquely from the rear.

  First, a structure for positioning and holding the booklet bundle 221 will be described with reference to FIG. The holding unit main body 74 has rib portions 76 suspended from both side ends of the lower surface of the table 75 on which the booklet bundle 221 is placed, and the side surface of the booklet bundle 221 is brought into contact with one end portion of the upper surface of the table 75. Side walls 78 for positioning are provided vertically. The rotation shaft 72 is inserted into the through hole 77 of the rib portion 76, and the rib portion 76 is fixed to the rotation shaft 72. The table 75 has a plurality of parallel first guide holes 79 extending in the front-rear direction and a plurality of parallel second guide holes 80 extending in the left-right direction.

  A front positioning plate 81 for abutting and positioning the front end surface (gluing surface) of the booklet bundle 221 is provided at a position facing the front end surface of the holding unit main body 74. The front positioning plate 81 is arranged perpendicular to the table 75 and can be moved up and down.

  A plate-like or rod-like back surface aligner 82 is inserted into each first guide hole 79, and the back surface aligner 82 protrudes from the upper surface of the table 75 and is arranged in a comb-like shape. The back aligner 82 can move in parallel with the table 75 along the first guide hole 79. The booklet bundle 221 is sandwiched from the front and the back by the front positioning plate 81 and the back aligner 82, and the booklet bundle 221 is inserted. Can be aligned. Further, as will be described later, the back surface aligner 82 can be moved up and down, and can be lowered so as not to jump out from the upper surface of the table 75.

  A plate-like or bar-like side aligner 83 is inserted into each second guide hole 80, and the side aligner 83 protrudes from the upper surface of the table 75 and is arranged in a comb shape. The side surface aligner 83 moves in parallel with the table 75 along the second guide hole 80, and the booklet bundle 221 is aligned with the side wall 78 and the side surface aligner 83 sandwiching the booklet bundle 221 from both sides. Can do.

  The pressing plate 85 holds the booklet bundle 221 aligned on the upper surface of the table 75 from above, and a plurality of pressing plates 85 extend in the front-rear direction. Each pressing plate 85 is fixed to a horizontal first beam 84 disposed so as to intersect the pressing plate 85, and moves up and down together with the first beam 84. The side wall 78 is provided with a slit 86 so as to face the gap between the side surface aligners 83, and the first beam 84 passes through the gap between the side surface aligners 83 and the slit 86, and the pressing plate 85 is disposed on the back surface. By passing through the gap between the aligners 82, the pressing plate 85 can be lowered to the upper surface of the table 75.

  A mechanism for moving the front positioning plate 81, the back surface aligner 82, the side surface aligner 83, and the pressing plate 85 configured as described above will be described. As shown in FIGS. 3 and 4, the guide plate 87 erected on both sides of the front end portion of the holding portion main body 74 is provided with guide holes 88 extending vertically, and a horizontal second beam extending in the left-right direction. Both end portions of 89 are respectively inserted into the guide holes 88. An elevator servo cylinder 90 is provided in the vicinity of each guide plate 87, and the end of the second beam 89 is coupled to the upper ends of the rods 90 a of the left and right elevator servo cylinders 90. Therefore, when the rod 90 a is expanded and contracted by the lifting servo cylinder 90, the second beam 89 moves up and down along the guide hole 88. Thrust bearings 91 are fixed to the lower surfaces of both end portions of the second beam 89, and the upper surface of the rear surface of the front positioning plate 81 is fixed to the tip of the sliding shaft 91a held by the thrust bearing 91. Therefore, the front positioning plate 81 can be moved up and down by the lifting servo cylinder 90, and the front positioning plate 81 can be smoothly moved back and forth by the thrust bearing 91 and the sliding shaft 91a.

  On both sides of the front end portion of the holding portion main body 74, magnet devices 92 are disposed at substantially the same height as the upper surface of the table 75, respectively. The magnet device 92 includes an electromagnet 92a. When the front positioning plate 81 is lowered, the lower portion of the rear surface of the front positioning plate 81 is attracted by the electromagnet 92a so that the front positioning plate 81 can be positioned in the front-rear direction. . As shown in FIG. 5, the magnet device 92 is attached to the position adjusting servo cylinder 94 via a U-shaped connecting fitting 93. The position adjusting servo cylinder 94 is fixed to the apparatus housing, and the position of the front positioning plate 81 can be adjusted in the front-rear direction by the position adjusting servo cylinder 94. Therefore, by adjusting the position of the magnet device 92 back and forth with the servo cylinder 94 for position adjustment, the position when the front positioning plate 81 is lowered is adjusted back and forth so that the front end of the booklet bundle 221 is moved from the front end of the table 75. The amount of popping out can be adjusted. The connecting fitting 93 connects the magnet device 92 and the position adjusting servo cylinder 94, bypassing the rod 90a.

  FIGS. 7A and 7B are a plan view and a side view showing a mechanism for moving the back aligner 82 in the front-rear direction and moving it up and down. The lower end portion of the back aligner 82 is fixed to the horizontal bar 95 at the same pitch as the first guide holes 79. A rear aligner servo cylinder 97 is fixed to the back of the vertical piece of the L-shaped cylinder holder 96, and the back central portion of the horizontal bar 95 is fixed to the rod tip of the rear aligner servo cylinder 97. Yes. Further, a guide bearing 98 a is fixed to the back surface of the vertical piece of the cylinder holding table 96, and the front ends of the guide shaft 98 b through which the guide bearing 98 a and the cylinder holding table 96 are inserted are fixed to both sides of the back surface of the horizontal bar 95. Yes. The lower surface of the cylinder holding table 96 is attached to a lifting / lowering servo cylinder 99 fixed to the apparatus housing.

  Accordingly, the cylinder holder 96 is moved up and down by extending and lowering the lifting / lowering servo cylinder 99, so that the rear aligner 82 protrudes from the upper surface of the table 75, and the rear aligner 82 does not protrude from the upper surface of the table 75. And can be controlled. That is, when the booklet bundle 221 is carried into the upper surface of the table 75, the rear aligner 82 is retracted from the upper surface of the table 75 so as not to hinder the carry-in, and the booklet is formed by the front positioning plate 81 and the rear aligner 82. When aligning the booklet bundle 221 in the front-rear direction across the bundle 221, the back aligner 82 is projected from the upper surface of the table 75.

  Further, the horizontal bar 95 can be moved back and forth by expanding and contracting the back aligner servo cylinder 97, whereby the back aligner 82 can be moved along the first guide hole 79. Therefore, the booklet bundle 221 on the table 75 is sandwiched between the front positioning plate 81 and the back aligner 82 from the front and back to align the booklet bundle 221 in the front and rear direction, and the glued surface of the booklet bundle 221 is positioned on the back of the front positioning plate 81. can do.

  As shown in FIG. 4, the lower end of each side surface aligner 83 is fixed to the horizontal bar 100 at the same pitch as the second guide holes 80, and the horizontal bar 100 is attached to the side surface aligner servo cylinder 101. Yes. Accordingly, the lateral bar 100 can be moved in the lateral direction by expanding and contracting the side surface aligner servo cylinder 101, whereby the side surface aligner 83 can be moved along the second guide hole 80. Accordingly, the booklet bundle 221 on the table 75 can be sandwiched from the left and right by the side wall 78 and the side surface aligner 83 to align the booklet bundle 221 on the left and right.

  Lifting servo cylinders 102 are fixed to both sides of the front end portion of the holding body 74, and both ends of the first beam 84 are supported by the lifting servo cylinders 102. Accordingly, the first beam 84 and the pressing plate 85 can be lowered by contracting the lifting / lowering servo cylinder 102, and the booklet bundle 221 can be pressed and held by the pressing plate 85.

(Explanation of operation of gluing device)
Next, the operation when the booklet bundle 221 is glued by the gluing device 21 will be specifically described with reference to FIGS. The operations shown below are automatically controlled according to numerical values and operation programs input in advance.

  First, a case where a plurality of booklets (set roses) are pasted together will be described. Prior to the start of the gluing operation, the holding portion main body 74 is in a horizontal posture. Further, the front positioning plate 81 is raised above the table 75, the rear aligner 82 and the side aligner 83 are retracted, and the back aligner 82 is lowered so as not to protrude from the upper surface of the table 75.

  When the booklet bundle 221 is loaded onto the table 75 and the operator turns on the start button (or when the sensor detects that the booklet bundle 221 is loaded onto the table 75), The rod 90a contracts and the front positioning plate 81 descends. Then, when the lower end of the front positioning plate 81 becomes lower than the upper surface of the table 75, it stops. When the front positioning plate 81 is lowered, the magnet device 92 is moved forward by the position adjusting servo cylinder 94 and comes into contact with the back surface of the front positioning plate 81, the electromagnet 92a is excited, and the front positioning plate 81 is attracted to the magnet device 92. The Next, the magnet device 92 moves backward to a predetermined position while the front positioning plate 81 is attracted by the position adjusting servo cylinder 94. Thereby, the back surface of the front positioning plate 81 is positioned at a predetermined position, and the position of the glue surface of the booklet bundle 221 is determined. The position of the gluing surface is determined according to the type of booklet bundle 221, the type of gluing, the gluing strength, etc., and is programmed in advance.

  Next, as shown in FIG. 8, the back aligner 82 is raised by the lifting servo cylinder 99 and protrudes from the upper surface of the table 75, and the back aligner 82 protrudes forward by the back aligner servo cylinder 97. As a result, the booklet bundle 221 on the table 75 is positioned by bringing the gluing surface into contact with the back surface of the front positioning plate 81 and is sandwiched between the front positioning plate 81 and the back aligner 82 so that the front and rear are aligned. It is done.

  Next, as shown in FIG. 9, the side surface aligner 83 protrudes by the side surface aligner servo cylinder 101, presses the booklet bundle 221 against the side wall 78, and sandwiches the booklet bundle 221 between the side wall 78 and the side surface aligner 83. Align the left and right sides of the booklet bundle 221.

  When the booklet bundle 221 is aligned in this manner, as shown in FIG. 10, the lifting servo cylinder 102 is contracted and the pressing plate 85 is lowered to strongly press the booklet bundle 221 from above. Next, by extending the position adjusting servo cylinder 94, the front positioning plate 81 is moved forward and away from the gluing surface, the electromagnet 92a is demagnetized, and only the magnet device 92 is retracted. Then, the lifting servo cylinder 90 is extended to raise the front positioning plate 81 to the original position, and the pasting surface of the booklet bundle 221 is exposed. In this state, the gluing surface protrudes before the front end of the table 75.

  Next, as shown in FIG. 11, the rotating shaft 72 is rotated to bring the holding portion main body 74 down to a vertical posture. In this state, the aligned booklet bundle 221 is erected vertically, and its glued surface is the lower surface. At this time, the front positioning plate 81, the side surface aligner 83, the presser plate 85, and the mechanism associated therewith also rotate together with the holding portion main body 74. However, since the lifting servo cylinder 99 and the position adjusting servo cylinder 94 are fixed to the apparatus housing, the back aligner 82 and the magnet device 92 remain in their original positions.

  Thereafter, the paste is applied to the pasting surface of the booklet bundle 221 as described below. The coating rollers 32 and 33 rotate at a constant speed, and films of glue 43 and 45 are formed on the outer peripheral surfaces thereof. In addition, the films of the glues 43 and 45 are adjusted to have a constant film thickness by the film thickness adjusters 46 and 47. When only the booklet is glued, only the glue 43 needs to be applied, so that the first application roller 32 is raised and the second application roller 33 is lowered. As a result, the first application roller 32 has a height at which the glue 43 on the outer peripheral surface touches the gluing surface of the booklet bundle 221, but the first application roller 32 itself does not contact the gluing surface. Neither the glue 45 nor the second application roller 33 has such a height that it touches the gluing surface.

  When the holding unit main body 74 rotates as described above and the booklet bundle 221 is set up vertically, the glue application unit 31 moves horizontally in the direction of the arrow at a constant speed as shown in FIG. Then, the first application roller 32 applies the glue 43 to the gluing surface. At this time, the rotation speed of the application rollers 32 and 33 is synchronized with the movement speed of the glue application unit 31, and the peripheral speed of the application rollers 32 and 33 (the speed of the outer peripheral surface of the application roller) is the movement speed of the glue application unit 31. Is controlled to be equal to Therefore, at the place where the glue 43 touches the glue surface, the outer peripheral surface of the first application roller 32 is stationary relative to the glue surface, and the glue surface is partially immersed in the stationary glue 43. It is in a state. Therefore, as shown in FIG. 17, the glue 43 on the surface of the first application roller 32 penetrates into the booklet bundle 221 in a stable state.

  The gluing strength for gluing the sheets in the booklet bundle 221 is determined by the penetration depth h of the glue 43 that has penetrated into the booklet bundle 221, and this penetration depth h is determined by the first application roller 32 on the gluing surface of the booklet bundle 221. The depth d of the outer peripheral surface immersed in the glue 43 (which is determined by the height of the first application roller 32 and the film thickness of the glue 43) and the moving speed of the first application roller 32 (this is the movement of the glue application unit 31) Is the same as speed.) According to the experiment, the penetration depth h has a much stronger correlation with the moving speed of the first application roller 32 than the depth d in which the booklet bundle 221 is immersed in the paste 43. Therefore, in order to adjust the gluing strength of the booklet bundle 221 in accordance with the viscosity of the glue 43, the movement speed of the glue application unit 31 is adjusted, and the rotation speed of the first application roller 32 is adjusted in synchronization therewith. That's fine.

  When the glue 43 is applied to the gluing surface of the booklet bundle 221 in this way, the glue removing / drying unit 51 passes under the booklet bundle 221 as shown in FIG. . When the glue removal drying unit 51 passes through the glued surface, the excess glue 43 not soaked in the glued surface is removed by the glue removal brush 52. The excess glue 43 removed by the glue removing brush 52 is scraped off from the glue removing brush 52 by the cleaning blade 59 and discharged into the waste liquid receptacle 58.

  The glued surface from which the excess glue 43 has been removed is irradiated with, for example, ultraviolet rays by the glue curing unit 53, and the glue 43 soaked between the sheets is quickly cured and the glued surface of the booklet bundle 221 is bonded together.

  When the glue removing / drying unit 51 has passed under the booklet bundle 221 and the gluing operation is completed, the glue removing / drying unit 51 and the glue applying unit 31 pass again under the booklet bundle 221 again as shown in FIG. Return to the first position. At this time, the glue removal brush 52, the second application roller 33, and the first application roller 32 are lowered downward so as not to touch the adhesive surface.

  Thereafter, the holding unit main body 74 returns to the horizontal posture, and the pressing plate 85 rises to open the booklet bundle 221. The booklet bundle 221 glued in this way is a stack of a plurality of booklets, but since the first glued portion of each booklet is impregnated with a release agent in advance and is not glued, it is lightly attached to the booklet bundle 221. When power is applied, each booklet will fall apart.

  Next, a case will be described in which a booklet bundle is glued and individual booklets are glued, and then the glued booklets are further glued and combined (in the case of booklets). In this case, a cover or mount may be added to the front and back of the booklet bundle.

  When combining a plurality of sets of booklets, the glue 43 is applied to the gluing surface as described above (see FIGS. 8 to 14), and the glue application unit 31 and the glue removal drying unit 51 are set as shown in FIG. After returning to the original position, the glue 45 is applied from the top of the glue 43 to the gluing surface by the second application roller 33 as described below.

  When the glue application unit 31 returns to the original position, the second application roller 33 is raised upward while the first application roller 32 remains lowered. As a result, in the second application roller 33, the glue 45 on the outer peripheral surface touches the glue surface of the booklet bundle 221, but the second application roller 33 itself has a height that does not contact the glue surface (the glue 43 applied). The first application roller 32 has such a height that neither the glue 43 nor the first application roller 32 touches the gluing surface.

  In addition, when applying the glue 45 by the second application roller 33, it is desirable to shorten the distance between the roller surface and the gluing surface by several mm, compared to applying the glue 43 by the first application roller 32. For this purpose, the height of the roller during application may be set to be several mm higher for the second application roller 33 than for the first application roller 32. Alternatively, a mechanism may be provided in which the booklet bundle 221 is further protruded by several mm from the table 75 before the glue 45 is applied by the second application roller 33.

  Next, as shown in FIG. 14, the glue application section 31 moves horizontally in the direction of the arrow at a constant speed and passes under the glue surface. Also in this case, the rotation speeds of the application rollers 32 and 33 are synchronized with the movement speed of the glue application unit 31, and the peripheral speed of the application rollers 32 and 33 is controlled to be equal to the movement speed of the glue application unit 31. The Accordingly, when the glue application unit 31 passes under the glue surface, the glue 45 is further applied onto the glue 43 on the glue surface by the second application roller 33.

  When the glue 45 is applied to the glued surface of the booklet bundle 221 in this way, the glue removing and drying unit 51 passes under the booklet bundle 221 as shown in FIG. . When the paste removing and drying unit 51 passes the pasting surface, the excess paste 45 is removed by the paste removing brush 52. The excess glue 45 removed by the glue removing brush 52 is scraped off from the glue removing brush 52 by the cleaning blade 59 and discharged into the waste liquid receiver 58.

  The glued surface from which the excess glue 45 has been removed is irradiated with, for example, ultraviolet rays by the glue curing unit 53, the glue 45 applied to the glued surface is cured, and the glued surface of the booklet bundle 221 is integrally bonded. In the booklet bundle bound in this way, the booklet is glued by glue 45, so even if force is applied, the booklet will not be easily separated, but if it is grabbed and peeled off, it will be separated from the booklet bundle. be able to.

  Thereafter, the glue applying unit 31 and the glue removing / drying unit 51 are returned to their original positions, the holding unit main body 74 is returned to the horizontal posture, and the glued booklet bundle is discharged.

(Other)
1. When only one kind of glue is applied, only one application roller is required. When three or more kinds of glue are applied, three or more application rollers may be provided accordingly.
2. The booklet bundle holding unit may not be a rotary type. In other words, the booklet holding unit may be one in which a booklet bundle is inserted vertically, and the booklet bundle is held together while being kept vertically.
3. A conveyor for discharging the glued booklet or booklet bundle may be installed so as to be connected in front of a horizontal table.

FIG. 1 is a schematic perspective view showing a booklet manufacturing system provided with a gluing device according to an embodiment of the present invention. FIG. 2 is a partially broken front view showing the structure of the glue applying part and the glue removing / drying part. FIG. 3 is a side view of the booklet bundle holding unit. FIG. 4 is a front view of the booklet bundle holding unit. FIG. 5 is a plan view of the booklet bundle holding unit. FIG. 6 is a schematic diagram showing a structure for positioning and holding the booklet bundle in the booklet bundle holding unit. FIGS. 7A and 7B are a plan view and a side view showing a mechanism for moving the back surface aligner in the front-rear direction and moving it up and down. FIG. 8 is a schematic cross-sectional view showing a step of aligning the front and rear of the booklet bundle in the booklet bundle holding unit. FIG. 9 is a schematic cross-sectional view showing a step of aligning the left and right sides of the booklet bundle in the booklet bundle holding unit. FIG. 10 is a schematic cross-sectional view showing a step of holding and holding the aligned booklet bundle by a pressing plate. FIG. 11 is a schematic cross-sectional view showing a step of raising the booklet bundle by rotating the holding body. FIG. 12 is a schematic front view showing a process of applying glue to the pasting surface of the booklet bundle by the first application roller. FIG. 13: is a schematic front view which shows the process of removing excess glue from the gluing surface to which the glue was apply | coated, and making it harden | cure. FIG. 14 is a schematic front view showing a process of returning the glue removing / drying unit and the glue applying unit to their original positions. FIG. 15 is a schematic front view showing a process of applying glue to the pasting surface of the booklet bundle by the second application roller. FIG. 16 is a schematic front view showing a process of removing excess glue from the glued surface to which glue has been applied and curing the glue. FIG. 17 is a schematic diagram for explaining how glue penetrates into a booklet bundle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 21 Gluing apparatus 22 Rail 31 Glue application part 32 1st application roller 33 2nd application roller 35 Traveling motor 38 Roller rotation motor 39, 40 Lifting servo cylinder 43 Glue 45 Glue 51 Glue removal drying part 52 Glue removal brush 53 Paste curing part 55 Traveling motor 57 Lifting servo cylinder 58 Waste liquid receiver 59 Cleaning blade 71 Booklet bundle holding part 72 Rotating shaft 75 Table 78 Side wall 79 First guide hole 80 Second guide hole 81 Front positioning plate 82 Rear alignment element 83 Side aligner 84 First beam 85 Holding plate 90 Lifting servo cylinder 91 Thrust bearing 92 Magnet device 94 Position adjusting servo cylinder 97 Rear aligner servo cylinder 99 Lifting servo cylinder 101 Side aligner servo cylinder 102 Lifting servo Cylinder 221 Booklet bundle

Claims (9)

A gluing device for binding the end faces of the stacked paper sheets with glue,
A paste container for storing glue; an application roller for supplying glue from the paste container to the outer peripheral surface; and a mechanism for moving the application roller while rotating,
The application roller moves in parallel with the end surface of the paper sheet such that the end surface of the paper sheet is in contact with the glue on the outer peripheral surface of the application roller and not in contact with the application roller. Glueing device.   The gluing device according to claim 1, wherein the application roller moves while rotating so that a portion facing the gluing surface is relatively stationary with respect to the gluing surface.   The gluing apparatus of Claim 1 or 2 provided with the glue removal device for scraping off the excess glue among the glue apply | coated to the said gluing surface.   The gluing apparatus of any one of Claim 1 to 3 provided with the glue hardening part for accelerating the hardening reaction of the glue apply | coated to the said gluing surface.   A traveling base that passes through a position facing the gluing surface is provided, a glue remover for scraping off excess glue from the glue applied to the gluing surface, and a curing reaction of the glue applied to the gluing surface. The gluing device according to claim 1 or 2, wherein a glue curing portion for promoting is mounted on the same traveling base.   It is provided with two application rollers and an adhesive container for supplying different adhesives to the outer peripheral surface of each application roller, and each application roller can adjust the vertical distance from the plane including the adhesive surface. The gluing device according to any one of claims 1 to 5, characterized in that:   The gluing apparatus according to claim 6, wherein the two application rollers are rotated at the same rotation speed by a single motor.   The gluing device according to any one of claims 1 to 7, further comprising a table device that holds the stacked paper sheets together.   The gluing device according to claim 8, wherein the table device is rotatable between a state where the table surface is horizontal and a state where the table surface is vertical.

Images