JP2010013247A - Sheet gluing folding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet gluing folding device capable of automatically/continuously applying temporary adhesive to a plurality of unfolded sheets as well as folding and sealing them. <P>SOLUTION: The device includes a paper feeding part 1 for loading the unfolded sheets P and feeding them one by one, an adhesive applying part 2 for applying the peelable temporary adhesive on surfaces of the sheets P while conveying the sheets P fed by the paper feeding part 1, a folding part 3 for folding the sheets P applied with the temporary adhesive into a plurality of folded pieces at a folding line orthogonal to the conveyance direction, and a paper receiving part 4 for loading the folded sheets P. The adhesive applying part 2 includes a conveyance mechanism for conveying the sheets P in a nearly-horizontal state, for example, a belt conveyance mechanism 22, and an adhesive applying nozzle 25-1 arranged at least on both end parts of the sheets P in the width direction and ON/OFF-controlled by a control part 49. The adhesive applying nozzle 25-1, etc., are controlled to apply and streak the adhesive in parallel with the conveyance direction by the control part 49. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a gluing and folding device for folding paper and sealing it with a temporary adhesive so as to be peeled off.

  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)
SUMMARY OF THE INVENTION An object of the present invention is to provide a sheet glue folding apparatus that can automatically and continuously apply a temporary adhesive to a plurality of unfolded sheets, and can fold and seal the sheets. It is.

  In order to solve the above-described problems, a sheet glue folding apparatus according to the present invention stacks unfolded sheets and supplies one sheet at a time, and conveys the sheets supplied from the sheet feeding section while conveying the sheets. An adhesive application part that applies a temporary adhesive that can be peeled to the surface, a folding part that folds the paper coated with the temporary adhesive into a plurality of folds by a fold line perpendicular to the transport direction, and a folded paper The adhesive application unit is disposed at least at both ends in the width direction of the paper and is controlled to be turned on and off by the control unit. An adhesive application nozzle, and the controller applies on / off control of the adhesive application nozzle so that the temporary adhesive is applied in stripes parallel to the paper transport direction.

  According to the above configuration, the temporary adhesive can be applied automatically and continuously to the unfolded paper, and it can be folded and sealed. Direct mail and the like can be easily and continuously produced, and material costs and work costs for enclosing operations can be reduced. 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. Further, since the sheet gluing function and the folding function are provided, the entire apparatus can be reduced in size as compared with the case where the apparatus for each function is provided.

  Furthermore, since a streak-like temporary adhesive is applied and sealed, there is no need for a high-pressure pressing mechanism such as a full-surface adhesive structure for applying the temporary adhesive to the entire surface of the paper, which can reduce the cost of the apparatus. it can.

  According to the present invention, in the paper gluing and folding apparatus, the adhesive application unit may include one or a plurality of other adhesive application nozzles between the adhesive application nozzles at both ends in the paper width direction. .

  According to the above configuration, the intermediate portion in the width direction can be bonded together with the both ends in the width direction of the paper with the temporary adhesive, so that when the postal matter is transported, another postal matter enters through the gap in the intermediate portion in the width direction. It can be transported in a sealed state for each postal item.

According to the present invention, in the paper gluing / folding apparatus, another adhesive application nozzle disposed at an intermediate portion in the paper width direction is similar to the adhesive application nozzle disposed at an end portion in the paper width direction in the conveyance direction. The adhesive may be controlled so as to be applied in a streak parallel to the sheet, or may be controlled so that the adhesive is applied only to the front end portion in the paper transport direction.

  According to the above configuration, the intermediate portion in the width direction of the paper can be reliably sealed, and the amount of adhesive used can be saved by applying the ink in a dot shape.

  The present invention provides the sheet glue folding apparatus, wherein the folding unit includes a plurality of folding trays capable of reversing the paper in a switchback manner, and a sheet conveyed from the adhesive application unit. A plurality of folding rollers that are nipped and conveyed to each other, and each of the folding rollers can be divided in the paper width direction so as not to interfere with the adhesive on the paper.

  According to the above configuration, when the temporary adhesive is applied to the paper and then folded at the folding portion, there is no possibility that the temporary adhesive adheres to the folding roller that sandwiches the paper, and the folding operation is smoothly performed without soiling the paper. be able to.

  According to the present invention, in the paper gluing and folding apparatus, each of the adhesive application nozzles may be controlled on and off by the control unit so as to apply the adhesive in a discontinuous line shape.

  According to the above configuration, by adjusting the intermittent state of the streak-like temporary adhesive, the adhesive strength can be adjusted according to the temporary adhesive and the paper. That is, it can be adjusted to an adhesive strength that does not open naturally during transportation, and can be easily opened without tearing when the recipient opens the package.

[Paper to be glued and folded by the apparatus of the present invention]
FIG. 1 shows an example of a sheet P that is glued and folded by the apparatus of the present invention. The sheet P is folded inward by two fold lines q1 and q2 that are parallel to each other. And third folded 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.

  For convenience of explanation, the direction of the folding lines q1 and q2 is the sheet width direction, the direction orthogonal to the folding lines q1 and q2 is the front-rear direction of the sheet (conveying direction F), and the first folded piece P1 side is the sheet. As the front side, the following will be described. The inner side surfaces of the first and second folded pieces P1 and P2, that is, the lower surface of the first folded piece P1 and the upper surface of the second folded piece P2 in the folded state as shown in FIG. The temporary adhesives A1, A2, A3, A4, and A5 are applied to the both end positions of the sheet, the center position in the sheet width direction, and the position between the both ends and the center in a state of extending in the front-rear direction. . Then, the second folded piece P2 and the third folded piece P3 are detachably bonded to each other by the temporary adhesives A1, A2, A3, A4, and A5 on the upper surface of the second folded piece P2. The first fold piece P1 and the third fold piece P3 are detachably bonded to each other by the temporary adhesives A1, A2, A3, A4, and A5 on the lower surface of P1.

  FIG. 2 shows a temporary adhesive application pattern in an unfolded state of the inner tri-fold paper P of FIG. That is, the temporary adhesives A1, A2, and A3 are provided at five locations at equal intervals in the paper width direction from the front end portion of the upper surface of the first folded piece P1 to the rear end portion of the upper surface of the second folded piece P2. , A4, A5 are applied in a streak shape extending in the front-rear direction.

  3 to 5 are other examples of the temporary adhesive application pattern. The application pattern in FIG. 3 is an example in which streak-like temporary adhesives A1, A3, and A5 are applied to three locations, that is, both ends and a center portion in the width direction for use. In FIG. 4, the temporary adhesives A1 and A5 at both ends in the paper width direction are applied in a streak shape, and the three temporary adhesives A2, A3, and A4 at the intermediate portion in the paper width direction are formed on the first folded piece P1. This is an example in which the front end portion is applied in the form of dots, thereby saving the amount of temporary adhesive used. Further, FIG. 5 shows a pattern applied to three portions of the both ends and the central portion in the paper width direction, and the temporary adhesives A1 and A5 at both ends in the paper width direction are applied in a streak shape, and the central portion is temporarily bonded The agent A3 is an example in which the agent A3 is applied in the form of dots on the front end portion of the first folded piece P1.

  FIG. 6 shows another example of a sheet that is glued and folded by the apparatus of the present invention. The sheet P is folded in two by one fold line q1, and the first fold piece P1 and the second fold piece P1 are folded. It has a fold piece P2. For example, on the inner side surface (lower surface in the state of FIG. 6) of the upper first folded piece P1, temporary streaks extending in the front-rear direction are provided at both end positions in the paper width direction and the center position in the paper width direction. Adhesives A1, A3, and A5 are applied, and the two folded pieces P1 and P2 are bonded to each other in a peelable manner.

  FIG. 7 shows a temporary adhesive application pattern in the unfolded state of the folded paper P of FIG. In other words, at three locations of the both ends and the central portion in the sheet width direction, a streak extending in the front-rear direction from the front end portion of the upper surface of the first folded piece P1 to the rear end portion of the upper surface of the first folded piece P1. Temporary adhesives A1, A3, and A5 are applied.

  FIG. 8 shows another example of the temporary adhesive application pattern of the bi-fold paper P of FIG. 6. The temporary adhesives A1 and A5 at both ends in the paper width direction are applied in a streak shape, and the temporary adhesive is applied at the central portion. The adhesive A3 is an example in which the adhesive A3 is applied to the front end portion of the first folded piece P1 in a dot shape.

[Embodiments of the present invention]
(Configuration of the entire paper gluing and folding device)
9 to 11 show an embodiment of the gluing / folding device according to the present invention, which is mainly used for paper folded in an inner tri-fold or a double fold as shown in FIGS. The first embodiment of the present invention will be described based on these drawings.

  9 is a plan view of the entire sheet gluing and folding apparatus, FIG. 10 is a front view of FIG. 9, and FIG. 11 is an enlarged sectional view taken along line XI-XI of FIG. Here, for convenience of explanation, the downstream side in the paper transport direction F will be described as the front side of the apparatus.

  In FIG. 10, the sheet glue folding apparatus stacks the unfolded sheets P in order from the upstream side (rear side) in the sheet transport direction F, and feeds the sheets one by one, and the unfolded state. An adhesive application unit 2 that applies temporary adhesive to the upper surface of the paper P, a folding unit 3 that folds the unfolded paper in three or two and seals the adhesive application part, and the folded paper P Are arranged in a scale shape and are provided with a paper receiving portion 4 that is stacked in an upright state.

(Paper Feeder 1)
The paper feed unit 1 includes a paper feed table 11 and an air suction belt transport mechanism 12 on which a large number of unfolded sheets P are stacked, and a pair of upper and lower paper feeds disposed in front of the air suction belt transport mechanism 12. A roller 13, a separation member 14 disposed at a lower end opening of a paper front end regulating plate 16 erected on the air suction belt conveyance mechanism 12, and the like, and the air suction belt conveyance mechanism 12 and the paper feed roller 13. Is linked to a paper feed drive motor 15 via a transmission mechanism. In other words, the unfolded sheet P on the sheet feeding table 11 is fed forward one by one from the lowest position by the air suction belt conveying mechanism 12 and the separating member 14, and is fed to the adhesive application unit 2 by the sheet feeding roller 13. It comes to supply.

(Adhesive application part 2)
The adhesive application unit 2 includes a substantially horizontal transport path plate 21 extending in the front-rear direction, a belt transport mechanism 22 that extends in the front-rear direction and transports the paper P on the transport path plate 21 forward, and the belt transport mechanism 22 A pair of front and rear press rollers 23 for pressing the paper P from above, and a plurality of adhesive application nozzles 25-1, 2, 3 for applying temporary adhesive to the upper surface of the paper P on the transport path plate 21 from above. 4 and 5 are provided. The belt transport mechanism 22 is linked to, for example, the drive motor 15 of the paper feed unit 1, and at the same paper transport speed V 1 as the air suction belt transport mechanism 12 and the paper feed roller 13 of the paper feed unit 1. Transport the paper. The distance between the front and rear pressing rollers 23 is set to be at least shorter than the length in the front-rear direction of the unfolded sheet P, so that the sheet P on the transport path plate 21 is brought into a flat state without generating wrinkles. It can be maintained.

  In FIG. 11, five adhesive application nozzles 25-1, 2, 3, 4, 5 are arranged in this embodiment, and the positions in the paper width direction can be adjusted. The adhesive application nozzles 25-1 and 25-5 arranged at both ends in the paper width direction are adjusted to positions corresponding to the width direction end portions of the paper P to be used, and are arranged at the center portion in the paper width direction. The agent application nozzle 25-3 is adjusted to a position corresponding to the central portion in the paper width direction of the paper P to be used, and the remaining adhesive application nozzles 25-2 and 25-4 are respectively applied with adhesive at both ends. It is adjusted to an intermediate position between the nozzles 25-1 and 25-5 and the adhesive application nozzle 25-3 at the center. As a whole, the five adhesive application nozzles 25-1, 2, 3, 4, 5 are adjusted to positions at equal intervals in the paper width direction.

  A pair of the belt 22a and the pressing roller 23 of the belt conveying mechanism 22 are arranged at intervals in the paper width direction, but the paper is applied to each of the adhesive application nozzles 25-1, 2, 3, 4, and 5. It is arranged at a position that does not overlap in the width direction. Specifically, between the adhesive application nozzle 25-1 disposed at one end (right end in the drawing) in the paper width direction and the adhesive application nozzle 25-2 adjacent thereto, and in the paper width direction. The belt 22a and the pressing roller 23 are respectively disposed between the adhesive application nozzle 25-5 disposed at the other end portion (left end portion of the figure) and the adhesive application nozzle 25-4 adjacent thereto. Has been.

  Each adhesive application nozzle 25-1, 2, 3, 4, 5 is electrically connected to the control unit 49, and an adhesive discharge state and an adhesive stop state are determined by an on / off signal from the control unit 49. On / off control is performed between the two. The controller 49 is electrically connected to an encoder 48 attached to a drive motor 15 that drives the belt conveyance mechanism 22, and controls the rotation angle and the rotation speed of the drive motor 15 detected by the encoder 48. The movement position and amount of movement of the belt 22a of the belt conveyance mechanism 22 are calculated based on the input values input to the section 49.

(Folding part 3)
In FIG. 10, the folding unit 3 protrudes forward and upward from the paper conveyance path, and the first folding tray 31 capable of reversing the paper in a switchback manner, and projects rearward and downward from the paper conveyance path and in a switchback manner. The sheet is composed of a second folding tray 32 capable of reversing the sheet and four first, second, third, and fourth folding rollers 41, 42, 43, 44 arranged between the folding trays 31, 32. The folding trays 31 and 32 are respectively provided with stoppers 31a and 32a whose positions can be changed in the folding tray length direction. Each of the folding rollers 41, 42, 43, 44 is in contact with adjacent rollers to form a nip portion, and is linked to a folding portion drive motor 45 via a linkage mechanism (not shown). A pair of upper and lower pressure pressing rollers 46 is disposed between the third and fourth folding rollers 43 and 44 and the paper receiving portion 4. The pressing roller 46 is interlocked with the driving motor 45 for the folding portion and is rotated in synchronization with the folding rollers 41, 42, 43, 44.

  Among the four folding rollers 41, 42, 43, 44, at least the first, second and third folding rollers 41, 42, 43 are not attached to the temporary adhesive applied to the paper P. As shown in FIG. 9, it is divided into six pieces in the paper width direction. For example, in the first folding roller 41 divided into six parts, each divided roller portion does not overlap the position of the adhesive application nozzles 25-1, 2, 3, 4, 5 in the paper width direction. They are arranged at intervals in the paper width direction. However, each divided roller portion can be individually adjusted in the left-right direction position with respect to the roller shaft.

  The folding unit 3 is configured to be able to fold the paper P in an inward tri-fold state in FIG. 2 by operating as shown in FIGS. 12 (a) to 12 (c), for example. That is, as shown in FIG. 12A, the unfolded sheet P conveyed from the adhesive application unit 2 is first fed into the nip portion between the first and second folding rollers 41 and 42. , And fed into the upper first folding tray 31. The position of the stopper 31a of the first folding tray 31 is set to a position corresponding to the total length of the first and second folding pieces P1 and P2. Therefore, after the leading edge of the paper P comes into contact with the stopper 31a of the first folding tray 31, when the paper P is further fed by the first and second folding rollers 41 and 42, the paper P is in the second folding line. Folded at q2, the fold line q2 is sandwiched between the nip portions of the second folding roller 42 and the third folding roller 43, and the lower second folding tray 32 as shown in FIG. Sent in.

  Since the stopper 32a of the lower folding tray 32 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 32a. Then, when the sheet is fed by the third and fourth folding rollers 43 and 44, it is folded at the first folding line q1 portion, and the folding line q1 portion is connected to the third folding roller 43 and the second folding roller 43. 4, the sheet is nipped at the nip portion with the four folding rollers 44, and as shown in FIG. That is, when folded along the first and second fold lines q 1 and q 2, respectively, the inner three-fold state is obtained and supplied to the paper receiver 4.

(Paper receiving part 4)
In FIG. 10, the paper receiver 4 includes a belt transport mechanism 51, a forwardly inclined paper tray 52 disposed at the front end of the belt transport mechanism 51 (the end in the paper transport direction F), and the belt transport. And a metallic auxiliary pressure roller 53 disposed above the rear portion of the mechanism 51. The belt conveyance mechanism 51 is linked to a paper receiving drive motor 54 via a transmission mechanism, and the sheet conveyance speed V3 of the belt conveyance mechanism 51 is determined by the folding rollers 41, 42, 43, 44 of the folding unit 3 and It is set to be smaller than the paper discharge speed V2 by the pressing roller 46. Thereby, on the belt conveyance mechanism 51 of the paper receiving unit 4, the folded paper continuously discharged from the folding unit 3 is conveyed in a partially overlapped state, that is, in a so-called scale-like state, and the scale-like In this state, the sheet is pressurized by the auxiliary pressure roller 53 and finally stacked on the paper receiving tray 52 in a standing state.

(Paper detection sensor)
In FIG. 10, the paper gluing and folding apparatus is provided with paper detection sensors at a plurality of locations. For example, a light transmission type first paper detection sensor S1 is disposed between the paper feed roller 13 of the paper feed unit 1 and the rear end of the belt transport mechanism 21 of the adhesive application unit 2, and the adhesive application unit 2 At a position corresponding to the position in the front-rear direction of the adhesive application nozzle 25, a light-transmissive second paper detection sensor S 2 that detects the front edge of the paper and issues an adhesive application start signal is disposed. Between the pressing roller 46 and the paper receiving portion 3, a light transmissive third paper detection sensor S3 is disposed.

  In FIG. 11, the three paper detection sensors S <b> 1, S <b> 2, and S <b> 3 are electrically connected to the control unit 49 and input the presence / absence of paper detection to the control unit 49. In particular, the second paper detection sensor S2 is a sensor for generating a signal for starting application of temporary adhesive by the adhesive application nozzles 25-1, 2, 3, 4, 5 as described above. When the front edge of the paper P is detected by the paper detection sensor S2 and a detection signal is input to the control unit 49, the control unit 49 turns on each adhesive application nozzle 25-1, 2, 3, 4, and 5 Agent application start signal) is sent to start application of the temporary adhesive.

  In addition, in order to control the adhesive application time (application length), the control unit 49 receives the detection signal of the second paper detection sensor S2 and at the same time inputs from the encoder 48 of the drive motor 15. When the predetermined number of pulses is counted, an OFF signal (adhesive application end signal) is issued to each of the adhesive application nozzles 25-1, 2, 3, 4, and 5 to complete the application operation. Let The predetermined number of pulses to be counted is determined according to the required application length of the temporary adhesive. The other paper detection sensors S1 and S3 are sensors used mainly for detecting paper jam.

(Function)
A description will be given of the flow of operations when the inner tri-fold paper P as shown in FIG. 1 is glued by the paper glue folding apparatus shown in FIGS. 9 to 12 and folded.

(1) Paper Feeding Process In FIG. 10, the unfolded sheets P stacked on the paper feed tray 11 and the air suction belt transport mechanism 12 of the paper feed unit 1 are transported from the lowest position by the air suction belt transport. The paper is fed forward one by one by the action of the mechanism 12 and the separating member 14, is sandwiched by the upper and lower paper feed rollers 13, and is supplied to the front adhesive application unit 2 at a predetermined transport speed V1. Since the paper feeding unit 1 supplies the paper P in order from the lowest paper P, the paper P can be additionally supplied onto the paper feed tray 11 even during the glue folding operation.

(2) Application Step In the adhesive application unit 2, the paper P is conveyed forward at a predetermined conveyance speed V1 by the belt conveyance mechanism 12 and maintained in a flat state by the pressing roller 23, and the adhesive application nozzle By passing below 25-1, 2, 3, 4, and 5, as shown in FIG. 2, the front end of the unfolded first folded piece P1 extends to the rear end of the second folded piece P2. The five layers of temporary adhesives A1, A2, A3, A4, and A5 are applied in a streak shape parallel to the transport direction F.

  As described above, the application start timing by the adhesive application nozzles 25-1, 2, 3, 4, and 5 is determined by the second paper detection sensor S2 detecting the front edge of the paper, and the application time (application length). 11), the rotation angle and the number of rotations of the drive motor 15 in FIG. 11 are measured by the encoder 48, and after the front end of the sheet is detected by the second sheet detection sensor S2, the controller 49 counts a predetermined number of pulses. Controlled.

(3) Folding process The paper P on which the temporary adhesive has been applied is conveyed to the folding unit 3, and is folded into an inner tri-fold state at the folding unit 3. Although the specific folding procedure has already been described in detail, it will be briefly described again. First, as shown in FIG. 12A, the unfolded sheet P is fed to the first folding tray 31 by the first and second folding rollers 41 and 42, and the front end of the sheet comes into contact with the stopper 31a. Further, by being pushed in from the adhesive application unit 2 in the transport direction F, it is folded along the second fold line q2 by the second and third folding rollers 42 and 43 and the inside of the first folding tray 31 is reversed. As shown in FIG. 12B, the sheet is fed into the second tray 32. Next, after the second fold line q2 portion comes into contact with the stopper 32a, the first fold piece P1 moves backward in the first fold tray 31, so that the third and fourth fold rollers 43 and 44 While being folded along the first fold line q1, the inside of the second fold tray 32 is reversed, and the inner fold state is obtained as shown in FIG. Subsequently, the pressing roller 46 in FIG. 10 presses the entire width of the paper P from above and below, presses the adhesive application portion, and seals the folded pieces P1, P2, and P3 into a temporarily bonded state that can be peeled off, The paper is discharged to the paper receiver 4.

(4) Loading process In FIG. 10, after temporarily bonding and sealing, the paper P discharged onto the belt conveyance mechanism 51 of the paper receiving portion 4 is conveyed on the belt conveyance mechanism 51 at a predetermined conveyance speed V3. However, since the conveyance speed V3 of the belt conveyance mechanism 51 is set to be lower than the discharge speed V2 from the folding portion 3 by the pressing roller 46 or the like, the continuously discharged paper P is transferred on the belt conveyance mechanism 51. The adhesion portions are finally pressed by the auxiliary pressure roller 53 and stacked on the paper receiving tray 52 in an upright state.

  As described above, according to the gluing and folding apparatus of the present embodiment, the temporary adhesive is applied to the unfolded paper P automatically and continuously, and is folded and sealed so as to be peelable. It can be done.

(Working on another example of a gluing pattern)
(1) As shown in FIG. 3, in the case where the temporary adhesive is applied to three locations (A1, A3, A5) of both ends in the width direction of the paper P and the central portion, for example, during the application operation, FIG. Of the five adhesive application nozzles 25-1, 2, 3, 4, and 5, only the required three application nozzles 25-1, 25-3, and 25-5 are operated.

(2) As shown in FIG. 4, when there are portions (A2, A3, A4) for applying the temporary adhesive in the form of dots, the five adhesive application nozzles 25-1, 2, 3, 4 in FIG. 5, the corresponding coating nozzles 25-2, 25-3, and 25-4 are controlled so as to shorten the coating time.

(3) As shown in FIG. 5, the temporary adhesive is applied to three places (A1, A3, A5) of the paper P in the width direction of the paper P, and one place (A3) is dotted. In the case of application, only the necessary three application nozzles 25-1, 25-3, and 25-5 among the five adhesive application nozzles 25-1, 2, 3, 4, and 5 in FIG. 11 are operated. At the same time, the application nozzle 25-3 corresponding to the dot application is controlled so that the application time is shortened.

(4) Even when the two-fold paper P as shown in FIG. 6 is glued and folded, it is continuously glued by the glue-folding device shown in FIGS. 9 to 12 as in the case of the three-fold paper shown in FIG. And can be folded. However, in the case of folding in two, only the upper first folding tray 31 in FIG. 10 is used, the lower second folding tray 32 is not used, and the stopper 31a of the first folding tray 31 is not used. The position is adjusted to the length of the first folded piece P1 in FIG. Furthermore, an attachment 70 having a U-shaped guide 70 a at the upper end as shown in FIG. 13 is attached to the second folding tray 32, or the second folding tray 32 and the attachment 70 are exchanged. As described above, when the attachment P is attached, the sheet P sent to the first tray 31 comes into contact with the stopper 31a and then reverses, so that the fold line q1 portion is moved to the second folding tray 32. Is not fed in, is guided by the U-shaped guide 70a, is fed into the third and fourth folding rollers 43 and 44, and is discharged in a folded state.

(5) When the folded paper P as shown in FIG. 8 has a portion (A3) where the temporary adhesive is applied in the form of dots, the application time of the corresponding application nozzle 25-3 is shortened in FIG. Control to be.

(7) For paper P folded in three as shown in FIG. 14, it is necessary to apply temporary adhesives A1, A3, A5 and A1 ′, A3 ′, A5 ′ to both front and back sides of the paper. In the gluing and folding apparatus shown in FIGS. 9 to 11, gluing and folding cannot be performed. However, an adhesive application nozzle is provided on the lower side of the conveyance path so that the temporary adhesive can be applied between the adhesive application part 3 and the folding part 3 in FIG. It is possible to cope with the problem by increasing the number of the second adhesive application section.

[Other embodiments]
(1) The temporary adhesive applied in the form of streaks has a discontinuous broken line shape as shown in FIGS. 15 and 16 in addition to the case where it is continuously applied in the form of streaks as shown in FIG. It can also be applied. Thus, by applying in a broken line shape, the amount of temporary adhesive used can be saved, and the adhesive strength can be adjusted so as not to be excessive. For example, FIG. 15 and FIG. 16 can be peeled off with a weaker force than when continuously applied in a streak form by applying them on a broken line, but the structure of FIG. Compared to FIG. 16, the temporary adhesive has more discontinuous portions, which makes it easier to peel off with a smaller force than in FIG. 16.

(2) The position of the application nozzles 25-1, 2, 3, 4, 5 in the paper width direction can be appropriately changed according to the position where the temporary adhesive is applied, as described above. The adjustment at that time can be performed either automatically using a spring or manually.

(3) In the above embodiment, as shown in FIGS. 9 and 10, one sheet detection sensor S2 is used for the start of application of the temporary adhesive and the setting of the application time. It is also possible to control the start and end of temporary adhesive application with a sensor. For example, in addition to the one second sheet detection sensor S2, an additional sheet detection sensor that detects the rear end of the sheet at a position rearward of the second sheet detection sensor S2 (a position upstream in the transport direction F). , And the trailing end of the sheet is detected by the additional sheet detection sensor, thereby controlling the application work to be completed.

(4) In the gluing and folding 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.

FIG. 4 is a perspective view of an inner tri-fold paper that is glued and folded by the apparatus of the present invention. FIG. 2 is a developed plan view of the sheet of FIG. 1 showing a state immediately after applying a temporary adhesive. It is an expansion | deployment top view of the inner side trifold paper similar to FIG. 2 which shows another example of the application pattern of temporary adhesive. It is an expansion | deployment top view of the inner side trifold paper similar to FIG. 2 which shows another example of the application pattern of temporary adhesive. It is an expansion | deployment top view of the inner side trifold paper similar to FIG. 2 which shows another example of the application pattern of temporary adhesive. It is a perspective view of the double fold paper which is glued and folded by the apparatus of this invention. FIG. 7 is a developed plan view of the sheet of FIG. 6 showing a state immediately after applying a temporary adhesive. FIG. 7 is a developed plan view of a folded paper similar to that in FIG. 6, showing another example of a temporary adhesive application pattern. 1 is a plan view of an entire sheet gluing and folding apparatus according to a first embodiment of the present invention. FIG. 10 is a front view of FIG. 9. It is a XI-XI cross-sectional enlarged view of FIG. It is operation | movement explanatory drawing which shows the operation | movement by a folding part in order. It is the front schematic diagram which shows the modification of the folding part used when gluing and folding the folding paper. It is a perspective view of an outside (Z shape) tri-fold paper. It is an expansion | deployment top view similar to FIG. 2 which shows another example of the application pattern of temporary adhesive. It is an expansion | deployment top view similar to FIG. 2 which shows another example of the application pattern of temporary adhesive.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper feed part 2 Adhesive application part 3 Folding part 4 Paper receiving part 15 Drive motor 22 Belt conveyance mechanism of adhesive application part 25-1, 2, 3, 4, 5 Adhesive application nozzle 31, 32 Folding tray 41, 42, 43, 44 Folding roller 46 Pressing roller 48 Encoder 49 Control unit P1 First folding piece P2 Second folding piece P3 Third folding piece q1 First folding line q2 Second folding line

Claims (7)

A paper feeding unit that stacks unfolded sheets and supplies them one by one;
An adhesive application unit that applies a peelable temporary adhesive to the surface of the paper while conveying the paper supplied from the paper supply unit;
A folding section that folds the paper coated with the temporary adhesive into a plurality of folds by a fold line perpendicular to the transport direction;
A paper receiver for loading folded paper,
The adhesive application unit includes a conveyance mechanism that conveys the paper in a substantially horizontal state, and at least an adhesive application nozzle that is disposed at both ends in the width direction of the paper and is on / off controlled by the control unit, A paper gluing / folding apparatus, wherein the temporary adhesive is applied in a streak parallel to the paper transport direction by controlling the adhesive application nozzle on and off by a control unit. In the paper glue pasting and folding device according to claim 1,
The sheet glue folding apparatus, wherein the adhesive application unit includes one or a plurality of other adhesive application nozzles between the adhesive application nozzles at both ends in the paper width direction. In the paper glue pasting and folding device according to claim 2,
The another adhesive application nozzle arranged at the intermediate portion in the paper width direction is formed in a streak shape parallel to the paper conveyance direction by the control unit, similar to the adhesive application nozzle arranged at the end portion in the paper width direction. A paper gluing and folding device that is controlled on and off to apply an adhesive. In the paper glue pasting and folding device according to claim 2,
The another adhesive application nozzle arranged at the intermediate portion in the paper width direction is a paper glue folding apparatus that is controlled on and off by the control unit so as to apply the adhesive only to the front end portion in the paper conveyance direction. In the paper glue pasting and folding device according to claim 1,
The folding unit includes a plurality of folding trays capable of reversing the paper in a switchback manner, and a plurality of folding rollers for nipping and conveying the paper conveyed from the adhesive application unit to each folding tray and the paper receiving unit. Has
Each of the folding rollers is a sheet glue folding apparatus that is divided in the sheet width direction so as not to interfere with the adhesive on the sheet. In the paper glue pasting and folding device according to claim 1,
Each of the adhesive application nozzles is a sheet gluing / folding device that is on / off controlled by a control unit so as to apply the adhesive in a continuous line shape. In the paper glue pasting and folding device according to claim 1,
Each of the adhesive application nozzles is a sheet gluing and folding device that is controlled on and off by a control unit so as to apply the adhesive in a discontinuous streak shape.

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