JP5123746B2 - Paper gluing device and gluing method - Google Patents

Description

  The present invention relates to a gluing device and a gluing method for sealing folded paper with an adhesive.

  Direct mail is a popular advertising method that has been recognized for its convenience of being delivered to individual recipients using the certainty of postal mail. However, as in recent years, many companies or stores use direct mail. As a result, each household may receive several to several tens of direct mails at the time of several to many times a day.

  In the direct mail of a sealed letter, since it is troublesome to open the envelope one by one, many recipients tend to throw away without opening it. In addition, when sending a direct mail with a sealed letter, the sender of the company or the like also encloses a greeting card, a catalog, and a reply postcard in the envelope. There is a problem that the operation cost to be sealed in becomes high.

  In contrast to direct mail sent in a sealed form as described above, recently, the folded pieces of folded paper are sealed with a pressure-sensitive pseudo-adhesive that adheres in a peelable manner when a predetermined pressure is applied, and is put in an envelope. There are direct mails or information concealment postcards directly mailed (Patent Document 1). The sheet folded as described above can be mailed as a postal item as it is with a postcard fee, and the recipient can easily confirm the contents by peeling both folded pieces. That is, it is advantageous in terms of cost as compared with the case of sending by envelope, and is convenient for both the sender and the recipient.

In addition, when sending advertisements or catalogs that do not need to be concealed by direct mail, some advertisements and catalogs are folded and sealed with adhesive tape, eliminating the need for the recipient to open the sealed letter. (Patent Document 2). In this case, the recipient can read the contents of the direct mail simply by removing the tape, and can prevent the generation of useless dust. Further, since the sealed letter is not used, the enclosing operation becomes unnecessary.
Japanese Patent Laid-Open No. 5-201179 JP-A-7-290866

  In the direct mail or the information concealment postcard according to the above-mentioned patent document 1, since the adhesive is applied to the entire surface of the folded piece in advance, and the entire surface of the folded surface is pressed by a roller for pressing, the entire sheet is applied. A processing device is required, and a roller for pressing the entire surface of the folded piece is required, which increases the size of the machine and the weight.

  In the direct mail according to Patent Document 2, the sealing sticker causes high cost, and a machine that automatically sticks the sealing sticker to the open end of the folded paper has been developed. There is a problem that is slow.

(Object of invention)
The object of the present invention is to automatically and quickly seal the open end of the folded paper without performing the adhesive coating process on the entire surface of the paper in advance, It is an object of the present invention to provide a paper gluing device and a gluing method capable of gluing a folding paper such as a direct mail that can be easily confirmed without performing an opening work or a perforation work such as a perforation.

  In order to solve the above-described problems, a paper gluing device according to the present invention is a paper gluing device that seals folded pieces of folded paper with an adhesive, and feeds the folded paper and supplies it one by one. A gluing main body that seals the open end of the paper supplied from the paper feeding unit with an adhesive, and a paper receiver that loads the sealed paper discharged from the gluing main body. The gluing main body includes a release mechanism that opens the closed paper sheet in a vertical direction, and a temporary adhesive that can be peeled off on an upper surface of an open end portion of a lower folded piece of the opened paper sheet. An adhesive application mechanism for applying a streak, an upper fold piece, a lower fold piece after provisional adhesive application, and a sealing mechanism for temporarily adhering the open ends of the upper and lower fold pieces; The sealing mechanism from the opening mechanism through the adhesive application mechanism And a, a transport mechanism for transporting the sheet over.

  According to the sheet gluing device having the above-described configuration, for example, with respect to bi-fold or tri-fold paper, the open ends of the upper fold piece and the lower fold piece are automatically and quickly attached to the temporary adhesive. Therefore, it is possible to easily and continuously produce a direct mail that can be used as a postal matter as well as an envelope, and to reduce the material cost and the work cost for the sealing work. In addition, when a direct mail or the like is produced, the recipient can easily see the contents without using a pinch or the like by simply opening the open end portion sealed with the temporary adhesive.

In the sheet gluing device according to the present invention, preferably, the opening mechanism includes an upper suction portion that sucks the upper folded piece upward and a lower suction portion that sucks the lower folded piece downward. Can be done.

  According to the above configuration, it is possible to reliably open the open ends of the upper and lower folded pieces without damaging the paper.

  In the present invention, preferably, the upper suction part is a suction box having a suction port on a lower surface, and the lower suction part is an air suction type belt conveyance mechanism having a suction box having a suction port on an upper surface. Can do.

  According to the above configuration, it is possible to open the open ends of the upper folded piece and the lower folded piece while transporting the sheet and without damaging the sheet, thereby improving the efficiency of the opening operation.

  In the present invention, it is preferable that the upper suction part is an air suction type belt conveyance mechanism having a suction box having a suction port on a lower surface, and the lower suction part has a suction box having a suction port on an upper surface. An air suction belt conveyance mechanism can also be used.

  According to the above configuration, since the upper folded piece and the lower folded piece are each conveyed by the air suction type belt conveyance unit, it is possible to reliably maintain the posture of the paper in a predetermined posture and convey the paper. it can.

  In the present invention, it is preferable that the upper folded piece of the paper released by the opening mechanism is guided to the adhesive application mechanism so that the degree of opening is expanded, and the extension guide member is temporarily installed by the adhesive application mechanism. A sealing guide member that guides the upper folded piece of the paper after the adhesive is applied to the lower folded piece side.

  According to the above configuration, the upper folded piece and the lower folded piece can be bonded to each other with an accurate mutual positional relationship without causing wrinkles, displacement, or useless folding.

  In the present invention, a folding machine that folds an unfolded sheet and supplies the folded sheet to the sheet feeding unit can be connected to the sheet feeding unit.

  According to the above configuration, the operation of folding the unfolded paper and the pasting operation can be performed automatically and continuously, and the work efficiency from the unfolded state is further improved.

  The present invention relates to the gluing device to which the folding machine is connected, wherein the folding machine is configured to apply a peelable temporary adhesive to the end of the unfolded sheet in the folding line direction in a streak shape. An application mechanism can be provided.

  According to the above configuration, not only the open end portion of the folding paper but also both ends in the fold line direction can be sealed with the temporary adhesive, so that the entire circumference of the folding paper can be sealed with the temporary adhesive. It is suitable for the production of postal items on which information with concealment is described.

  In addition, the present invention provides a paper gluing method for sealing folded pieces of folded paper with an adhesive, and an opening process for opening the end on the open side of the folded paper in the vertical direction by an opening mechanism; The application process of applying a peelable temporary adhesive to the open end of the lower folded piece of the printed paper by the adhesive application mechanism, and the upper folded piece on the lower side after applying the temporary adhesive And a sealing step of temporarily adhering the open ends of the upper and lower folded pieces by a sealing mechanism.

  According to the gluing method, it is possible to obtain substantially the same effect as that of the basic gluing device.

[Folded paper glued by the apparatus and method of the present invention]
1 to 3 show examples of folding sheets that are glued by the apparatus and method of the present invention. FIG. 1 shows a sheet P folded in two by one fold line q1, which has a first fold piece P1 and a second fold piece P2, and is provided on the open side of the lower second fold piece P2. The temporary adhesive A1 is applied in a streak shape parallel to the fold line q1 on the upper surface of the end, and the open ends of the upper first fold piece P1 and the lower fold piece P2 are bonded to each other by the temporary adhesive A1. , Releasably bonded.

  FIG. 2 shows a sheet P that is folded inside by two fold lines q1 and q2 that are parallel to each other, and has first, second, and third fold pieces P1, P2, and P3. The third fold piece P3 is folded above the second fold piece P2 by the second fold line q2, and the first fold piece P1 is folded by the first fold line q1 to the third fold piece P3. Folded to the upper side. Temporary adhesive A1 is applied in a streak pattern parallel to the second fold line q2 on the upper surface of the open end of the third fold piece P3 with respect to the first fold piece P1, and the upper first fold piece. The open end of P1 is detachably bonded to the third folded piece P3 by the temporary adhesive A1.

  FIG. 3 shows a sheet P that is folded in three in a Z shape by two parallel folding lines q1 and q2, and has first, second, and third folded pieces P1, P2, and P3. The third fold piece P3 is folded below the second fold piece P2 by the second fold line q2, and the first fold piece P1 is folded by the first fold line q1. Folded above P2. Folding is performed on the upper surface of the open end of the second folded piece P2 with respect to the first folded piece P1 and the upper surface of the open end of the third folded piece P3 with respect to the second folded piece P2. In parallel with the lines q1 and q2, strip-like temporary adhesives A1 and A2 are applied, and the respective open ends are bonded to the temporary adhesives A1 and A2 in a peelable manner.

[Embodiments of the present invention]
(Configuration of the entire paper gluing device)
4 to 13 show a first embodiment of a gluing device according to the present invention, which is mainly a device used for gluing the folding sheets shown in FIGS. 1 and 2, and based on these drawings. The first embodiment of the present invention will be described.

  4 is a plan view of the entire sheet gluing apparatus, and FIG. 5 is a front view of the entire sheet gluing apparatus. In FIG. 4, the sheet gluing apparatus includes a sheet feeding unit 1 and a gluing body in order from the upstream side in the sheet conveying direction F. A section 2 and a paper receiving section 3 are provided. Here, for convenience of explanation, the downstream side in the conveyance direction F is the front side of the sheet gluing device, and the left and right when viewed from the upstream side in the conveyance direction F toward the downstream side are the left and right sides of the sheet gluing device. explain.

  In the gluing main body 2, an opening mechanism 11 that opens a closed sheet in the vertical direction in order from the upstream side in the transport direction F, that is, from the rear side, and an open state of the opened upper and lower folded pieces are provided. An adhesive application mechanism 12 that applies a strip of temporary adhesive that can be expanded and peeled to the lower fold, and the upper fold is overlapped with the lower fold so that the open ends of the upper and lower folds are A sealing mechanism 13 for temporary bonding, and a main transport mechanism 15 and an auxiliary transport mechanism 16 for transporting paper along the opening mechanism 11, the adhesive application mechanism 12, and the left side of the sealing mechanism 13. It has.

  The opening mechanism 11 of the gluing main body 2 includes a suction box 30 disposed on the upper side of the conveyance path, and an air suction type belt conveyance mechanism 32 disposed on the lower side of the conveyance path. , An application nozzle 33 for applying a temporary adhesive, a pair of upper and lower guide plates 34 and 35 for guiding the lower folded piece, and a pair of left and right guide rods (expansion guide members) 36 for guiding the upper folded piece, 37, and the sealing mechanism 13 presses the upper folded piece against the lower folded piece, and a sealing guide rod (sealing guide member) 38 for guiding the upper folded piece downward. And a pressing roller 39.

  In FIG. 5, the paper feed unit 1 includes an air suction belt conveyance mechanism 22 that loads a large number of folded sheets P, and a pair of upper and lower paper feeds disposed in front of the air suction belt conveyance mechanism 22. And a roller member 24, and the like, which is provided at a lower end opening of a sheet front end regulating plate erected on the air suction belt conveyance mechanism 22, and includes an air suction belt conveyance mechanism 22, a paper feed roller 23, and the like. Are linked to the first drive motor 26 for paper feed through a transmission mechanism. That is, the lowermost sheet P is fed forward one by one by the air suction type belt conveying mechanism 22 and the buckling member 24, and is supplied to the gluing main body 2 by the sheet feeding roller 23. The paper feed unit 1 is provided with a position restricting plate 25 for aligning the right end of the stacked paper P at a predetermined position.

  The main conveying mechanism 15 of the gluing main body 2 is composed of a pair of upper and lower belt conveying portions 15a and 15b, and the lower belt conveying portion 15b is connected to a second driving motor 28 for conveying via a transmission mechanism. The upper belt conveyance unit 15a is interlocked and connected, and operates in synchronization with the lower belt conveyance unit 15b via an appropriate linkage mechanism (not shown), and sandwiches the left end of the sheet between the upper and lower belt conveyance units 15a and 15b. The sheet is conveyed forward (conveying direction F).

  The paper receiving unit 3 includes, in order from the rear side, a belt conveyance mechanism 41 and a paper receiving tray 40. The belt conveyance mechanism 41 is linked to a third drive motor 44 for paper reception via a transmission mechanism. It is connected. A pair of front and rear metal auxiliary pressure rollers 42 are disposed above the belt conveyance mechanism 41, and the auxiliary pressure rollers 42 are supported by a bracket 43 so as to be movable up and down. The paper transport speed V3 of the belt transport mechanism 41 of the paper receiver 3 is set to be lower than the paper transport speed V1 of the main transport mechanism 15 of the gluing main body 2, and thus the belt transport mechanism 41 of the paper receiver 3 Then, the paper after the gluing continuously discharged from the gluing main body 2 is conveyed in a partially overlapped state, that is, in a so-called scale-like state, and in the state of being overlapped in the scale-like state, the auxiliary pressure roller 42 Finally, the pressure is applied.

(Detailed structure of the opening mechanism 11)
6 is an enlarged plan view showing main components of the gluing main body 2, and FIG. 7 is a front view of FIG. FIGS. 8 to 13 show the sizing operation of the folded paper in the order of the processes, and are enlarged sectional views taken along the lines VIII-VIII, IX-IX, XX, XI-XI, XII-XII and XIII-XIII in FIG. It corresponds to.

  In FIG. 7, the opening mechanism 11 includes the suction box 30 disposed on the upper side of the transport passage and the air suction type belt transport mechanism 32 having the suction box 31 disposed on the lower side as described above. The front portion of the lower surface of the upper suction box 30 has an inclined surface 30b that opens upward toward the front.

  In FIG. 9, a pair of left and right suction holes 30a extending in a rectangular shape in the front-rear direction are formed on the lower surface of the upper suction box 30 so that the upper fold piece P1 of the paper P is sucked upward. On the other hand, on the upper surface of the suction box 31 of the lower air suction belt conveyance mechanism 32, a pair of left and right suction holes 31a extending in a rectangular shape in the front-rear direction so as to correspond to the suction holes 30a of the upper suction box 30 are provided. The lower fold P2 formed on the sheet P is sucked downward and conveyed forward. The lower air suction belt transport mechanism 32 is provided with three transport belts spaced apart from each other on the left and right, and the suction holes 31a and 30a are located between the transport belts. Yes.

(Detailed structure of adhesive application mechanism 12)
In FIG. 6, the application nozzle 33 is disposed at the front end portion of the adhesive application mechanism 12, and the lower end discharge port 33 a corresponds to the right end portion of the lower folded piece of the paper P being conveyed from above. Is arranged.

  In FIG. 7, a pair of upper and lower guide plates 34 and 35 for guiding a lower folded piece (P2, P3, etc.) of the paper P are disposed substantially horizontally with a predetermined gap in the vertical direction and the opening mechanism. 11 is set at substantially the same height as the upper end conveying surface of the belt conveying mechanism 32. The lower guide plate 35 extends rearward from a position near the front end of the belt conveyance mechanism 32 of the opening mechanism 11, passes under the application nozzle 33, and reaches the vicinity of the pressing roller 39 of the sealing mechanism 13. On the other hand, the upper guide plate 34 extends rearward from the position near the front end of the belt conveyance mechanism 32 of the opening mechanism 11 and is interrupted at a position slightly behind the lower end discharge port 33 a of the application nozzle 33.

  Of the pair of left and right guide rods 36 and 37 that guide the upper folded piece P1, the first guide rod 36 disposed on the right side is integrally provided with a wedge-shaped separation claw 36a at the rear end, The separation claw 36 a is disposed between the front inclined surface 30 b of the upper suction box 30 of the opening mechanism 11 and the lower belt conveyance mechanism 32. The first guide rod 36 on the right side extends forward from the separation claw 36 a so as to be inclined upward and reaches the left side of the application nozzle 33. On the other hand, the second guide rod 37 on the left side has a rear end located above the separation claw 36a, extends substantially horizontally forward, reaches the left side of the application nozzle 33, and further extends forward. Each of the guide rods 36 and 37 is made of stainless steel or aluminum steel having a circular cross section so that the paper can be smoothly guided.

(Detailed structure of the sealing mechanism 13)
In FIG. 7, the sealing guide rod 38 of the sealing mechanism 13 has a rear end located in the vicinity of the left side of the application nozzle 33 and a front end of the second guide rod 37 of the adhesive application mechanism 12. And extends forward in a downwardly inclined manner to the right and reaches the vicinity of the lower end of the pressing roller 39. In FIG. 6, the front end portion of the sealing guide rod 38 extends rightward to a position substantially the same as the position of the application nozzle 33 in the left-right direction in plan view, and reaches a position near the pressing roller 39.

  In FIG. 13, the pressing roller 39 is formed of metal so as to have a predetermined weight and is provided with a pair of left and right, and is rotatably supported on the front end portion of the swing arm 50 via a rotating shaft 51. A rubber roller 45 having a diameter smaller than that of the pressing roller 39 is provided on the lower side of each pressing roller 39. Each rubber roller 45 is fixed to the drive shaft 49 of the main transport mechanism 15 and rotates synchronously with the main transport mechanism 15.

  As shown in FIG. 5, the swing arm 50 is supported by a support shaft 52 so that the rear end portion thereof is freely rotatable. As a result, the pressing roller 39 can be moved up and down. Pressurize from above.

(Paper detection sensor)
In FIG. 5, the paper gluing device is provided with paper detection sensors at a plurality of locations. For example, between the paper feed roller 23 of the paper feed unit 1 and the rear end of the main transport mechanism 15 of the gluing main body unit 2, light transmissive first and second paper detection sensors S 1 and S 2 are arranged. In the vicinity of the application nozzle 33 of the adhesive application mechanism 12, a light transmissive fourth paper detection sensor S4 that detects the front edge of the paper and issues an adhesive application start signal, and the rear edge of the paper are detected. A light-transmitting third paper detection sensor S3 that emits an adhesive application end signal is disposed. Further, between the sealing mechanism 13 and the paper receiving portion 3, a light transmissive fifth paper detection sensor S5 is disposed. As described above, the third and fourth paper detection sensors S3 and S4 are sensors for issuing signals for starting and ending adhesive application by the application nozzle 33, and the other sensors S1, S2 and S5 are , A sensor used primarily to detect paper jams.

(Function)
The flow of operations when gluing the inner tri-folded paper P as shown in FIG. 2 with the paper gluing device shown in FIGS.

(1) Paper Feeding Process In FIG. 5, a number of sheets P in the inner tri-fold state (state shown in FIG. 2) are stacked on the air suction belt conveyance mechanism 22 of the paper feed unit 1, and the lowest sheet. P is fed forward by the action of the air suction type belt conveyance mechanism 22 and the buckling member 24, and is sandwiched between the upper and lower paper feed rollers 23 as shown in FIG. 8, and is moved forward in a substantially horizontal closed state (planar state). Supplied.

(2) Opening Process In FIG. 9, the sheet P supplied to the opening mechanism 11 in a substantially horizontal closed state is sandwiched between the upper and lower belt conveying portions 15 a and 15 b of the main conveying mechanism 15 and conveyed forward. The During this conveyance, the lower second folded piece P2 is sucked downward by the lower suction box 31, and the intermediate third folded piece P3 substantially overlaps the upper surface of the second folded piece P2 by its own weight. The upper first folded piece P1 is maintained in the state and is lifted upward from the lower second and third folded pieces P2 and P3 by being sucked upward by the upper suction box 30. That is, the paper P changes from a closed state to a state where the right end is opened. Then, the released paper P is machined into the upper first folded piece P1 and the lower second and third folded pieces P2 and P3 by the tip separation claw 36a of the first guide rod 36. Separated.

(3) Opening and expanding step In FIG. 10, when the paper P moves to the adhesive application mechanism 12, the lower second and third folded pieces P <b> 2 and P <b> 3 are placed in the gap between the lower guide plates 34 and 35. It enters and is transported while being maintained in a substantially horizontal state. On the other hand, the upper first folded piece P1 is gradually pushed up from the lower side by the right first guide rod 36 in the vicinity of the right end portion, and on the other hand, between the first guide rod 36 and the main transport mechanism 15. The upward movement of the portion is restricted by the substantially horizontal second guide rod 37 on the left side. As a result, the right half of the upper folded piece P1 gradually rises so as to approach the vertical posture. That is, the degree of opening expands.

(4) Application Step In FIG. 11, when the paper P reaches a position corresponding to the application nozzle 33, the upper guide plate 34 is interrupted, so that the upper surface of the third folded piece P3 is exposed. At this time, the first folded piece P <b> 1 stands up to a state where it does not interfere with the application nozzle 33. In this state, the temporary adhesive is discharged from the lower end discharge port 33a of the nozzle and the paper P is conveyed forward, thereby forming a streak parallel to the conveyance direction F at the right end of the upper surface of the third folded piece P3. Apply temporary adhesive A1.

  As described with reference to FIG. 5, the application start and end times by the application nozzle 33 are determined by detecting the front end of the paper P by the fourth sensor S4, and after the paper P by the third sensor S3. By detecting the end, the application is terminated. Thereby, as shown in FIG. 2, the peelable temporary adhesive A <b> 1 is applied in a streak shape over substantially the entire width of the paper P in the front-rear direction.

(5) Sealing Step In FIG. 11, after the temporary adhesive A1 is applied, the upper first guide piece P1 is released from the position restriction by the first and second guide rods 36, 37 for expansion. At the same time, as shown in FIG. 12, it is guided downward by the sealing guide rod 38 of the sealing mechanism 13 toward the third folded piece P3.

  In FIG. 13, after the first folded piece P <b> 1 is superimposed on the upper surface of the third folded piece P <b> 3, the paper P is sandwiched between the metal pressing roller 39 and the rubber roller 45. In particular, the application portion of the temporary adhesive A1 is directly pressed by the right pressure roller 39, and the right open end of the paper is securely temporarily bonded to be peelable. The pressing roller 39 is not limited to metal, and can be a resin pressing roller.

  In FIG. 5, during the period from the opening mechanism 11 to the sealing mechanism 13, the main transport mechanism 15 is transported at a predetermined transport speed V <b> 1.

(6) Loading Step In FIG. 5, after sealing, the paper P discharged onto the belt transport mechanism 41 of the paper receiver 3 has a transport speed V3 of the belt transport mechanism 41 of the main transport mechanism 15 of the gluing main body 2. Since it is set to be smaller than the conveyance speed V1, it is superposed on the belt conveyance mechanism 41 in a scale-like manner, and finally the adhesive portion is pressed by the auxiliary pressure roller 42 and the paper P is aligned, and the paper receiving tray Stack on top of 40.

(7) Effect As described above, the folded paper P can be automatically and continuously sealed in a detachable manner with a temporary adhesive.

(8) The auxiliary transport mechanism 16 disposed in parallel with the main transport mechanism 15 is disposed only on the lower side of the transport path. When the left and right width of the sheet to be glued is large, the auxiliary transport mechanism 16 is moved to the left from the main transport mechanism 15. The paper portion that protrudes in the direction is supported from the lower side and conveyed at the same speed as the main conveyance mechanism. As a result, deformation of the sheet being conveyed is prevented, and the sheet is conveyed in a stable state.

(Gluing action of different types of paper)
(1) When the two-folded paper P as shown in FIG. 1 is glued, it can be continuously glued by the gluing device of FIGS. 1 to 7 as in the case of the paper of FIG.

(2) As shown in FIG. 3, with respect to the paper P folded in the Z-shape, the adhesives A1 and A2 can be simultaneously applied to two places by one operation in the gluing device shown in FIGS. Can not. However, once the open ends of the first fold piece P1 and the second fold piece P2 in FIG. 3 are temporarily bonded with the temporary adhesive A1, the sheet is fed from the paper receiving portion 3 in FIG. 1, the open ends of the second fold piece P2 and the third fold piece P3 can be temporarily bonded with the temporary adhesive A2 by the second operation.

[Second Embodiment]
FIG. 14 is a front view of the gluing main body 2 according to the second embodiment of the present invention. As the unsealing mechanism 11, the air suction belt conveying mechanisms 29, 32 each having suction boxes 30, 31 on both the upper and lower sides. It is the structure which arranged. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals.

  According to the second embodiment, even when the paper P is soft or thin, the folded paper can be transported without being wrinkled while being separated into upper and lower folded pieces. .

[Third Embodiment]
FIGS. 15 to 17 show an example in which a paper folding machine 60 is connected to a paper gluing device similar to that of the first embodiment shown in FIGS.

  In FIG. 15, a folding machine 60 is connected to the right side of the paper feeding unit 1, and the folding machine 60 itself has a structure in which an additional adhesive application mechanism 66 is added to a known folding machine. Briefly, the structure will be described. A sheet placing portion 61 for stacking unfolded sheets, a feeder section 62 for feeding the sheets of the sheet placing section 61 one by one, and a first for conveying unfolded sheets. A transport unit 63; an adhesive application unit 66 in which a pair of front and rear application nozzles 65 are disposed to apply a streak-like temporary adhesive to front and rear ends of the paper being transported; a folding unit 67 that folds the paper; And a second conveying unit 68 that conveys and stacks the folded sheets to the sheet feeding unit 1 of the gluing device.

  In FIG. 16, the sheet placing unit 61 has a placing table 77 that can be raised and lowered, and the belt conveying type feeder unit 62 is disposed at the upper end of the sheet placing unit 61. In FIG. 15, the pair of front and rear application nozzles 65 of the adhesive application unit 66 can be adjusted in the front-rear direction, and is fixed at positions corresponding to the front and rear end portions of various sheets in an unfolded state.

  In FIG. 16, the folding portion 67 includes a pair of upper and lower folding trays 69, 70 and four first to fourth folding rollers 71, 72, 73, 74 disposed between the folding trays 69, 70. The folding trays 69 and 70 can be freely changed in the positions of the stoppers 69a and 70a at their tips. The folding rollers 71 to 74 are in contact with adjacent rollers to form a nip portion. ing.

  The folding portion 67 operates, for example, as shown in FIGS. 17A to 17C, so that the paper P can be folded, for example, in an inwardly folded state in FIG. That is, as shown in FIG. 17A, the paper P conveyed from the adhesive application unit 66 is sent to the nip portion between the first and second folding rollers 71 and 72, and first the upper folding sheet is fed. It is sent into the tray 69. The position of the stopper 69a of the upper folding tray 69 is set to a position corresponding to the total length of the first and second folding pieces P1, P2. Accordingly, after the leading edge of the paper P comes into contact with the upper end stopper 69a of the upper folding tray 69, when the paper is further fed by the first and second folding rollers 71 and 72, the paper P is in the second folding line q2. The fold line q2 is sandwiched by the nip portion between the second folding roller 72 and the third folding roller 73 and fed into the lower folding tray 70 as shown in FIG. 17B. .

  Since the lower end stopper 70a of the lower folding tray 70 is set at a position corresponding to the length of the second folding piece P2 (or the third folding piece P3), the second folding line q2 portion is the stopper. When the sheet is further fed by the third and fourth folding rollers 73 and 74 after coming into contact with 70a, it is folded at the first folding line q1 portion, and the folding line q1 portion is separated from the third folding roller 73. It is nipped at the nip portion with the fourth folding roller 74, and as shown in (c) of FIG. 17, it is in a three-fold state inside and is conveyed to the second conveyance unit 68. That is, when folded along the first and second fold lines q1 and q2, respectively, the inner fold state is obtained and supplied to the second transport unit 68.

  In the third embodiment, the adhesive application unit 66 of the folding machine 60 applies a stripped temporary adhesive to the upper surfaces of the front and rear end portions of the unfolded paper P in a streak shape. The subsequent temporary adhesive is not pressed by a folding roller or a pressing roller that is grooved so as to avoid the application portion, and is supplied to the sheet feeding unit 1 of the gluing device in an unbonded state, 15 reaches the paper receiving portion 3 of FIG. 15 in a substantially non-pressurized state, and the front and rear end portions of the paper P are finally temporarily bonded by being pressed by the auxiliary roller 42 of the paper receiving portion 3. Become. Therefore, in the third embodiment, the sheet is finally glued in a state where the front, rear, left and right are all sealed or bound.

[Other embodiments]
(1) When gluing a Z-shaped tri-fold paper P as shown in FIG. 3, the first fold piece P1 and the second fold piece P2 are glued in the gluing device of the first embodiment. After that, it has been described that the sheet must be supplied to the sheet feeding unit 1 again in the upside down direction to perform the gluing operation between the second folded piece P2 and the third folded piece P3. For example, FIG. As shown in FIG. 4, two sets of gluing main body portions 2 are arranged in series in the paper conveyance direction F and arranged in the opposite directions from each other. In one gluing main body portion 2, the first folded piece P1 and the second folding piece 2 are arranged. It can also be configured such that the folding piece P2 is glued, and the other glueing main body 2 performs the glueing operation of the second folding piece P2 and the third folding piece P3.

(2) In addition to the paper as shown in FIGS. 1 to 3, the booklet B with one end 80 as shown in FIG. 18A is bound by the folding machine 60 as shown in FIGS. 18 (b) and 18 (c), it is folded in three with the binding end 80 inward, and then the binding end 80 is inward (lower) as shown in FIG. 18 (d). After the upper and lower sides are switched, the temporary adhesive A1 can be applied in a streak shape and sealed by a gluing device as shown in FIGS.

(3) In the embodiment shown in FIGS. 4 to 7, one application nozzle 33 is arranged in the adhesive application mechanism 12 and the temporary adhesive A <b> 1 is applied at a glance. It is also possible to place two in close proximity and apply a streak-like adhesive in two pieces. Thereby, the adhesive strength can be improved.

(4) When the temporary adhesive is applied in a streak pattern by the application nozzle 33, it is not limited to the case where the temporary adhesive is continuously applied, and it is also possible to apply it on a discontinuous broken line.

(5) The position of the application nozzle 33 in the left-right direction can be appropriately changed according to the position where the adhesive is applied. Further, the adjustment at that time can be performed either automatically using a spring or manually.

(6) In the above embodiment, as shown in FIG. 5, for example, two paper detection sensors (S3 and S4) for starting and ending adhesive application are arranged, but one paper detection sensor is used. It is also possible to control the start and end of application of the adhesive. For example, it is possible to control the start and end of coating by detecting the leading edge of a sheet with a single sheet detection sensor and then counting the number of pulses linked to the transport motor.

(7) The position of the suction port of the suction box of the opening mechanism is most preferably close to the edge in the left-right direction of the paper in both the upper and lower sides.

(8) In the paper gluing apparatus according to the present invention, this adhesive which cannot be peeled can be used instead of the temporary adhesive. In that case, a perforation may be applied after the adhesive coating process so that it can be easily opened if necessary. Alternatively, in the case of the third embodiment, a known slitting machine may be installed at a predetermined processing position, and the perforation may be performed simultaneously with the adhesive application process.

FIG. 3 is a perspective view of a folded paper that is glued by the apparatus and method of the present invention. FIG. 4 is a perspective view of an inner tri-fold paper that is glued by the apparatus and method of the present invention. FIG. 3 is a perspective view of an outer (Z-shaped) tri-fold paper that is glued by the apparatus and method of the present invention. 1 is a plan view of an entire sheet gluing apparatus according to a first embodiment of the present invention. FIG. 5 is a front view of FIG. 4. FIG. 5 is an enlarged plan view of a gluing main body portion of the paper gluing device in FIG. 4. FIG. 7 is a front view of FIG. 6. FIG. 6 is a cross-sectional view taken along the line VIII-VIII in FIG. 5 showing a paper feeding process. FIG. 6 is a cross-sectional view taken along the line IX-IX in FIG. 5 showing a paper opening process. FIG. 6 is a cross-sectional view taken along the line XX of FIG. FIG. 6 is a cross-sectional view taken along the line XI-XI of FIG. 5 showing a paper adhesive application process. FIG. 6 is a cross-sectional view taken along the line XII-XII of FIG. FIG. 6 is a cross-sectional view taken along the line XIII-XIII of FIG. 5 illustrating a pressing stage of a paper sealing process. It is a front view of the gluing main-body part which shows the 2nd Embodiment of this invention. It is a top view of the whole gluing apparatus which shows the 3rd Embodiment of this invention. FIG. 16 is a schematic cross-sectional view of the folder of FIG. 15. It is an operation explanatory view which shows operation by a folding machine of Drawing 15 in order. It is a perspective view which shows the booklet which can be glued by this invention, and shows the state of a folding process and a gluing process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper feed part 2 Gluing main-body part 3 Paper receiving part 11 Opening mechanism 12 Adhesive application mechanism 13 Sealing mechanism 29 Belt conveyance mechanism above an opening mechanism 30 Upper suction box (upper suction part) of an opening mechanism
31 Lower suction box of the opening mechanism 32 Belt transport mechanism of the lower side of the opening mechanism 33 Coating nozzles 34 and 35 Lower guide plates 36 and 37 of the adhesive coating mechanism Guide rods (guide rods for expansion) )
38 Guide rod for sealing (guide member for sealing)
39 Pressure roller for sealing 45 Rubber roller for sealing 60 Folding machine 65 Application nozzle of folding machine 67 Folding part

Claims (8)

In a paper gluing device that seals folded pieces of folded paper with an adhesive,
A paper feeding unit for loading folded sheets and supplying them one by one;
A gluing main body for sealing the open end of the paper supplied from the paper feeding unit with an adhesive;
A paper receiving portion on which the sealed paper discharged from the gluing main body portion is loaded, and the gluing main body portion includes:
An opening mechanism that opens the paper in the closed state vertically;
An adhesive application mechanism for applying a peelable temporary adhesive in a streaky manner to the upper surface of the open end of the lower folded piece of the released paper;
A sealing mechanism that superimposes the upper folded piece on the lower folded piece after applying the temporary adhesive, and temporarily bonds the open ends of the upper and lower folded pieces;
A transport mechanism for transporting paper from the opening mechanism to the sealing mechanism through the adhesive application mechanism;
A paper gluing device characterized by comprising: The paper gluing device according to claim 1,
The open mechanism is a sheet gluing device that includes an upper suction part that sucks the upper folded piece upward and a lower suction part that sucks the lower folded piece downward. The paper gluing device according to claim 2,
The upper suction part is a suction box having a suction port on the lower surface,
The lower suction unit is a paper gluing device, which is an air suction type belt conveyance mechanism including a suction box having a suction port on an upper surface. The paper gluing device according to claim 2,
The upper suction part is an air suction type belt conveyance mechanism provided with a suction box having a suction port on the lower surface,
The lower suction unit is a paper gluing device, which is an air suction type belt conveyance mechanism including a suction box having a suction port on an upper surface. In the paper gluing device according to any one of claims 1 to 4,
An extension guide member that guides the upper folded piece of the paper released by the release mechanism to the adhesive application mechanism so that the degree of opening is expanded;
A paper gluing device comprising: a sealing guide member that guides the upper folded piece of the paper after the temporary adhesive is applied by the adhesive application mechanism to the lower folded piece side. In the paper gluing device according to any one of claims 1 to 5,
A sheet gluing device to which a folding machine that folds an unfolded sheet and supplies the folded sheet to the sheet feeding unit is connected to the sheet feeding unit. In the paper gluing device according to claim 6,
A sheet gluing device provided with an adhesive application mechanism for applying a peelable temporary adhesive in a streak-like manner to an end of the unfolded sheet in the fold line direction. In the paper gluing method of sealing the folded pieces of folded paper with an adhesive,
An opening step of opening the end on the open side of the folded paper in the vertical direction by an opening mechanism;
An application step of applying a peelable temporary adhesive in a streaky manner to the open end of the lower folded piece of the released paper by an adhesive application mechanism;
The upper fold is overlaid on the lower fold after application of the temporary adhesive, and a sealing step of temporarily bonding the open ends of the upper and lower folds by a sealing mechanism;
A paper gluing method.

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