JP6132514B2 - Paper crimping processing apparatus and paper crimping processing method - Google Patents

Description

  The present invention relates to a paper pressure-bonding processing apparatus and a paper pressure-bonding processing method for manufacturing a pressure-bonded letter or a pressure-bonded postcard.

  FIG. 16 is an example of a paper crimping processing apparatus for manufacturing a crimped letter or a crimped postcard (Patent Document 1). From the upstream side of the paper transport directions D1 and D2, the paper feed unit 100, the side-by-side unit 101, and the paper folding A section 102, a cutting section 103, and a sheet pressing section 104. The sheet S stacked on the sheet feeding unit 100 is coated with a pressure-sensitive adhesive that is bonded at a certain pressure or more, the sheet edges are aligned at the one-sided unit 101, and the sheet folding unit 102 is folded in half. It is folded into three folds, cut at the cutting portion 103, and pressed at the crimping portion 104, thereby producing a sealed postcard in a sealed state.

  The pressure-bonding portion 104 includes a pair of upper and lower pressure-bonding rollers 110 having the same outer diameter. One pressure-bonding roller 110 is connected to a drive motor (not shown), and the other pressure-bonding roller 110 is bonded to the drive side. The roller 110 is connected via a gear mechanism or the like. As a result, the two pressure rollers 110 are synchronously rotated in opposite directions, and the folded paper S is pressure-bonded and sealed.

Japanese Patent Laid-Open No. 2001-213070

  As shown in FIG. 16, in the pressure-bonding portion 104 including a pair of pressure-bonding rollers 110, the pressure-bonded paper curls upward or downward depending on the processing accuracy of the pressure-sensitive roller 110, the type of paper, and the work environment. Often to do. At present, even if curling occurs on the paper, it is discharged to the paper receiving section in a curled state, so the quality (product value) of the crimped postcards is reduced, and it can be loaded neatly on the paper receiving section. Can not.

  An object of the present invention is to provide a paper pressure-bonding processing apparatus and a paper pressure-bonding processing method capable of finally discharging a paper in a state in which the curl is corrected even if the paper is curled in the paper pressure bonding portion.

In order to solve the above problems, the present application employs the first invention, the second invention, and the invention of the method. The third invention is another invention disclosed in the present application. According to a first aspect of the present invention, there is provided a sheet crimping apparatus including a sheet crimping unit having at least a pair of crimping rollers for crimping a folded sheet. A correction unit is disposed, and the curl correction unit receives a folded sheet discharged from the sheet pressing unit, sandwiches and conveys the sheet, and a sheet conveyance of the first correction roller pair. A second correction roller pair disposed on the downstream side, and the second correction roller pair is parallel to the first correction roller pair whose vertical position is fixed. It is supported by a parallel link mechanism composed of a pair of upper and lower links so that the position in the vertical direction can be changed , and the second sheet conveyance surface by the second correction roller pair is the first by the first correction roller pair. For As will be parallel to the conveying surface, the is second correction roller pair is disposed, the curl correcting section, the second correction roller pair in the down position with respect to the first correction roller pair By setting, the curl of the paper curled downward after the pressing is corrected, and after the pressing by setting the second correcting roller pair to the upper position with respect to the first correcting roller pair The curl of the paper curled upward is corrected.

According to a second aspect of the present invention, there is provided a paper crimping apparatus including a paper crimping unit having at least a pair of crimping rollers for crimping a folded paper. A correction unit is disposed, and the curl correction unit receives a folded sheet discharged from the sheet pressing unit, sandwiches and conveys the sheet, and a sheet conveyance of the first correction roller pair. a second correction roller pair arranged downstream, comprises a second sheet conveyance surface by the second correction roller pair, the first sheet conveying surface by the first correction roller pair On the other hand, the second correction roller pair is fixed so as to be shifted in a direction orthogonal to the first paper conveyance surface, and the pressure roller of the paper pressure bonding part and the correction roller pair of the curl correction part. And the same It has been driven by dynamic means.

In the first invention, preferably, the following configurations (b) to (e) can be provided. In the second invention, preferably, the following configurations (a) to (c) and (e) can be provided.

(A) The second correction roller pair is arranged so that the second sheet conveyance surface by the second correction roller pair is parallel to the first sheet conveyance surface by the first correction roller pair. ing.

(B) The curl correction unit is disposed downstream of the sheet crimping unit as a next step of the sheet crimping unit.

(C) The curl correction unit is disposed at a distance at which the sheet reaches the minimum processing speed within one minute after passing through the sheet pressing unit.

(D) The pressure roller of the paper pressure bonding part and the correction roller pair of the curl correction part are driven by the same driving means.

(E) The peripheral speed of the correction roller pair of the curl correcting unit is set to be the same as the peripheral speed of the press roller of the paper pressing unit.

  A third invention of the present application includes, instead of the first straightening roller pair, a first straightening guide including a pair of guide plates having the first paper transport surface, and / or the second straightening guide. Instead of the correction roller pair, a second correction guide including a pair of guide plates is provided.

The present application also provides a paper pressure-bonding method, and a paper pressure-bonding method including a pressure-bonding step of pressure-bonding a folded paper having an adhesive applied to a mating surface with at least a pair of pressure-bonding rollers. As the next step, there is a curl correction step for correcting the curl of the paper after the pressure bonding, and the curl correction step includes a first correction roller pair on the upstream side of conveyance and a downstream side of conveyance having different paper conveyance surfaces. By cooperating with the second conveying roller pair, the sheet is bent to the side opposite to the curl side. In the curl correcting step, the sheet conveying surface of the second conveying roller pair is , in parallel with said sheet conveying surface of the first correction roller pair are set, the curl straightening step, the second correction roller pair to the first correction roller pair Then, the curl of the paper curled downward after the pressure bonding is corrected by setting the lower position, and the second correction roller pair is set to the upper position with respect to the first correction roller pair. By doing so, the curl of the paper curled upward after the pressure bonding is corrected.

  In the paper pressure-bonding processing method, preferably, after the pressure-bonding step is completed, the minimum processing speed is within one minute.

  According to the first invention of this application, since the position of the second correction roller pair on the downstream side of the sheet conveyance of the sheet crimping section can be displaced in the direction orthogonal to the first sheet conveyance surface, the sheet generated in the sheet crimping section. By adjusting the position of the second correction roller pair according to the direction and amount of the curl, the curl can be accurately corrected in any curl state, and a high-quality folded sheet can be provided. In addition, the folded sheets after crimping can be neatly stacked on the paper receiver.

  According to the second invention of the present application, similarly to the first invention, in the paper processing operation, the curl can be accurately corrected into a straight shape, and a high-quality folded paper can be provided, and the folded paper after crimping can be received by the paper receiver. Can be neatly stacked on the part, and the structure of the second straightening roller pair is simplified, thereby reducing the cost.

  According to the configuration (a), since the second sheet conveyance surface of the second correction roller pair and the first sheet conveyance surface of the first correction roller pair are parallel, the curl correction unit discharges the sheet. In addition to correcting the curl, the sheet is always discharged in a constant posture (for example, a horizontal posture), and the sheet conveyance after the curl correction unit is stabilized.

  According to the configuration (b), since the folded paper immediately after being crimped by the paper crimping section can be curled, a large curling correction effect can be obtained. In this case, it is preferable that the curl correcting unit is disposed at a distance at which the sheet reaches at least the minimum processing speed within one minute after passing through the sheet pressing unit as in the configuration (c). Of course, the shorter the reach distance, the greater the curl correction effect.

  According to the configuration (d), the pressure roller and the correction roller pair can be easily synchronized even if the conveyance speed changes due to the increase or decrease of the load because the pressure roller driving source also serves as the correction roller pair. it can.

  According to the configuration (e), by setting the peripheral speed of the correction roller pair to be substantially the same as the peripheral speed of the pressure roller, the curling is corrected and the unintentional marking on the paper due to the slip of the roller (the roller Slip marks or dirt) can be prevented.

  As in the third invention of the present application, instead of the first and / or second straightening roller pair, a first straightening guide comprising a pair of guide plates and / or a second straightening comprising a pair of guide plates. When the guide is provided, the component cost can be reduced as compared with the case where the correction roller pair is arranged.

  Note that, in the paper pressure-bonding processing method, substantially the same effect as that of the paper pressure-bonding processing apparatus according to the first invention can be obtained.

It is a perspective view of the crimping postcard manufacturing apparatus which is an example of the paper crimping processing apparatus which concerns on 1st invention of this application. It is the schematic which expressed each part in the crimping | compression-bonding postcard manufacturing apparatus of FIG. 1 on the same straight line along a paper conveyance direction. FIG. 2 is an enlarged plan view of a paper crimping unit and a curl correcting unit of the crimping postcard manufacturing apparatus of FIG. 1. FIG. 4 is a view (side view) taken along arrow IV in FIG. 3. It is a V arrow directional view (front view) of FIG. It is VI-VI sectional drawing of FIG. It is VII-VII sectional drawing of FIG. It is a front enlarged view of the detent mechanism of an operation lever. It is a side view similar to FIG. 4 at the time of changing the position of the 2nd correction roller pair below. It is sectional drawing similar to FIG. 6 at the time of changing the position of the 2nd correction roller pair below. It is an operation explanatory view showing a state immediately after the leading edge of the paper is discharged from the paper crimping portion. It is an action explanatory view showing the state where the curl of the paper is corrected. FIG. 5 is a side view similar to FIG. 4 when the position of the second correction roller pair is changed upward. It is sectional drawing similar to FIG. 6 at the time of changing the position of the 2nd correction roller pair upwards. It is a simplified side view of the curl correction part in 3rd invention of this application. It is a perspective view of a prior art example.

  1 to 14 show a crimping postcard manufacturing apparatus which is an example of a sheet crimping processing apparatus according to the first invention of the present application. Based on these drawings, the structure of the crimped postcard manufacturing apparatus will be described.

  FIG. 1 is a perspective view of the entire crimped postcard manufacturing apparatus, in which a first transport device 1 having a first transport direction D1 and a second transport direction D2 that is substantially orthogonal to the first transport direction D1. 2 as a whole, and is formed in an L shape in plan view. An operation panel 7 having a control unit 6 is provided on the upper surface of the second transport device 2, and various control settings, operation start and stop, etc. of the crimping postcard manufacturing work are performed by operating the keys of the operation panel 7 or the like. Is entered and displayed.

  A paper feed unit 8 that stacks unprocessed paper (postcard base paper) S and feeds the paper one by one is provided at the transport start end of the first transport device 1. Is provided with a paper receiving section 9 for sequentially stacking sheets (compression-bonded postcards) after the crimping process in an inclined state.

  FIG. 2 is an exploded view of the inside of the crimped postcard manufacturing apparatus of FIG. 1. In the first conveying apparatus 1, a sheet folding unit 11 and a slitter 12 are arranged from the upstream side in the first conveying direction D1. Yes. The sheet folding unit 11 folds the sheet S conveyed from the sheet feeding unit 8 into two or three folds along a fold line perpendicular to the first conveying direction D1, and the slitter 12 folds the folded sheet S. Is cut along the first transport direction D1.

  In the second transport device 2, an intermediate transport unit 13, a sheet crimping unit 14, and a curl correction unit 15 are disposed from the upstream side in the second transport direction D <b> 2. The intermediate transport unit 13 includes a transport belt mechanism, receives the paper S discharged from the slitter 12, and transports it in the second transport direction D2.

  The paper pressure bonding unit 14 includes an upper pressure roller 21 and a lower pressure roller 22, and the folded paper S is sandwiched between the pressure rollers 21 and 22 to pressure-bond the adhesive application region. The lower pressure roller 22 is connected to the drive motor 16 via the belt transmission mechanism 17, and the upper pressure roller 21 is driven by friction on the contact surface with the lower pressure roller 22 or is not shown. It is configured to rotate synchronously in the opposite direction to the lower pressure roller 22 via a gear transmission mechanism or the like. Both the pressure-bonding rollers 21 and 22 of the paper pressure-bonding portion 14 are made of iron, SUS, or other metal material.

  The curl correction unit 15 includes a first correction roller pair 31 on the upstream side of the sheet conveyance and a second correction roller pair 32 on the downstream side of the sheet conveyance. The second correction roller pair 32 moves in the vertical direction. It is configured to be possible. The first correction roller pair 31 includes a first upper correction roller 31a and a first lower correction roller 31b, and the second correction roller pair 32 includes a second upper correction roller 32a and a second correction roller 31b. The lower correction roller 32b.

  The curl correction unit 15 is the next process of the sheet press unit 14, and the distance from the press rollers 21 and 22 to the first correction roller pair 31 is folded and transported in the second transport direction D2 of the sheet S to be transported. It is set to a position shorter than the length. When curling occurs in the folded paper in the paper crimping unit 14, the curl correcting unit 15 causes the paper to move in the direction opposite to the curl direction by the cooperative operation of the first correction roller pair 31 and the second correction roller pair 32. , Thereby correcting the curl and discharging to the paper receiver 9. The vertical position of the second correction roller pair 32 in FIG. 2 is adjusted so as to shift downward with respect to the first correction roller pair 31 in order to correct downward curl.

[Detailed structure of curl correction unit 15]
3 is an enlarged plan view of the paper crimping section 14 and the curl correcting section 15, FIGS. 4 and 5 are views taken along arrows IV and V in FIG. 3, respectively, and FIGS. 6 and 7 are VI-VI and FIG. FIG. 8 is an enlarged front view of the detent mechanism of the operating lever.

  In FIG. 4, the upper and lower first roller shafts 31c and 31d of the first correction roller pair 31 are rotatably supported by the left and right side walls of the metal support frame 41 via bearings, and the lower first The roller shaft 31d is connected to the lower pressure-bonding roller 22 of the sheet pressure-bonding portion 14 via the speed increasing belt transmission mechanism 42. The speed increasing belt transmission mechanism 42 rotates the lower pressure roller 22 so that the peripheral speed of the outer peripheral surface of the first lower correction roller 31b is the same as the peripheral speed of the outer peripheral surface of the lower pressure roller 22. Is transmitted to the lower first roller shaft 31d.

  The first correction roller pair 31 has a first paper conveyance surface M1 corresponding to the tangent line of the nip portion N1 so that the pressure-sensitive paper conveyance surface M0 corresponding to the tangent line of the nip portion N0 of the paper pressure bonding portion 14 coincides. Has been placed. In this embodiment, since the pressure-bonding paper conveyance surface M0 of the paper pressure bonding unit 14 is set to be horizontal, the first paper conveyance surface M1 of the first correction roller pair 31 is horizontal and is a pressure-bonding paper conveyance surface. It is the same height as M0. The first correction rollers 31 a and 31 b above and below the first correction roller pair 31 are both rubber rollers, but one of them can be made of metal.

  Between the nip portion N0 of the paper crimping portion 14 and the nip portion N1 of the first correction roller pair 31, a pair of substantially horizontal upper and lower guide plates 45a and 45b are disposed, and the upper guide plate 45a is pressed against the paper. The end on the side of the portion 14 is bent upward, and the end of the lower guide plate 45b on the side of the paper crimping portion 14 is bent downward. The folded paper from the paper crimping portion 14 is guided to the nip portion N1 of the first correction roller pair 31 between the upper and lower guide plates 45a and 45b.

  In contrast to the first correction roller pair 31 whose vertical position is fixed, the second correction roller pair 32 is supported by a pair of upper and lower links 51a and 51b which are parallel to each other so that the position in the vertical direction can be changed. Specifically, the second roller shaft 32c of the second upper correction roller 32a is supported on the first roller shaft 31c of the first upper correction roller 31a by the upper link 51a so as to be rotatable in the vertical direction. The second roller shaft 32d of the second lower correction roller 32b is connected to the first roller shaft 31d of the first lower correction roller 31b by a lower link 51b so as to be rotatable in the vertical direction.

  The pitch between the axis of the first roller shaft 31c and the axis of the second roller shaft 32c in the upper link 51a, and the axis between the axis of the first roller shaft 31d and the axis of the second roller shaft 32d in the lower link 51b. The pitch is set to be the same. Further, the four correction rollers 31a, 31b, 32a, 32 are formed to have the same outer diameter in the present embodiment. Accordingly, the upper and lower links 51a and 51b constitute a parallel link mechanism. Therefore, even if the second correction roller pair 32 moves in the vertical direction, the second sheet by the second correction roller pair 32 is used. The conveyance surface M2 is always kept parallel to the first sheet conveyance surface M1 by the first correction roller pair 31. The four correction rollers 31a, 31b, 32a, and 32 can be set to different outer diameters.

  In the second embodiment, the second correction roller pair 32 is such that the second upper correction roller 32a is an iron roller and the second lower correction roller 32b is a rubber roller. However, the second correction roller pair 32 is limited to these materials. Not done.

  Between the end of the upper link 51a on the second conveying direction D2 side and the support frame 41, a first coil spring 55 that can be expanded and contracted in the vertical direction is stretched. The second correction roller pair 32 is urged downward by the elastic force. In order to raise the second correction roller pair 32 against the elastic force of the first coil spring 55, a cam 56 is disposed below the lower link 51b, and the upper end of the cam 56 is The cam contacts (cam follower) 57 formed at the lower end of the lower link 51b are in contact. That is, by rotating the cam 56 around the eccentric axis Oc, the lower link 51b is pushed up, and accordingly, the upper link 51a and the second correction roller pair 32 are also raised.

  The cam 56 is connected to a lifting operation lever 65 via a belt transmission mechanism including upper and lower pulleys 61 and 62 and a belt 63. The operation lever 65 is supported by the main body frame 44 so as to be rotatable in the vertical direction above the support frame 41, and the knob 66 at the tip of the operation lever 65 extends in the second transport direction D2, and is shown in FIG. Thus, it protrudes outside the cover of the crimping postcard manufacturing apparatus.

  FIG. 8 shows a detent mechanism for stopping and holding the operation lever 65 at a desired rotation position. A ball fitting hole 71 is formed in the case portion 70 fixed to the side wall of the main body frame 44, and a detent ball 72 is fitted in the ball fitting hole 71 so as to be movable in the hole center direction. The detent ball 72 is urged toward the operation lever 65 side by a leaf spring 73 and engages with a ball engagement hole 74 formed in the base portion of the operation lever 65.

  As shown in FIG. 4, the engagement hole 74 has a shape in which a plurality of arc-shaped enlarged portions are connected in a bead shape. When the operation lever 65 is stopped at a desired position, the ball 72 is arc-shaped. The control lever 65 is held in a stopped state by engaging with the enlarged shape portion.

  In FIG. 5, the second coil spring 60 is stretched between the end of the upper link 51a on the second transport direction D2 side and the end of the lower link 51b on the second transport direction D2 side. The nip pressure of the second correction roller pair 32 is generated by the elastic force of the second coil spring 60. When the nip pressure of the second correction roller pair 32 is set to be higher than the nip pressure of the first correction roller pair 31, the function of correcting the curl becomes higher.

  In FIG. 3, a lower first roller shaft 31d and a second roller shaft 32d are connected to be synchronously rotated in the same direction by a belt transmission mechanism 80 using a toothed belt.

  In FIG. 6, a pair of upper and lower intermediate guide plates 83a and 83b are disposed between the nip portion N1 of the first straightening roller pair 31 and the nip portion N2 of the second straightening roller pair 32. The guide plates 83a and 83b are arranged in an inclined manner so that a vertical interval is opened toward the first correction roller pair 31 side.

  In FIG. 7, both side walls in the axial direction of the upper intermediate guide plate 83a are rotatably supported by the upper first roller shaft 31c and the second roller shaft 32c, and the axial direction of the lower intermediate guide plate 83b. Both side walls are rotatably supported by the lower first roller shaft 31d and the second roller shaft 32d. Accordingly, following the movement of the second correction roller pair 32 in the vertical direction, the end portions of the intermediate guide plates 83a and 83b on the second correction roller side move in the vertical direction. Therefore, the paper is always smoothly fed from the nip portion N1 of the first correction roller pair 31 to the nip portion N2 of the second correction roller pair 32 regardless of the vertical position of the second correction roller pair 32. I can guide you.

[Adjustment of the straightening roller]
As a preparatory stage before the paper processing operation, the vertical position of the second correction roller pair 32 in the curl correction unit 15 is adjusted.

  First, as shown in FIGS. 4, 6, and 7, the second sheet conveyance surface M <b> 2 of the second correction roller pair 32 matches the first sheet conveyance surface M <b> 1 of the first correction roller pair 31. Further, the height of the second correction roller pair 32 is set by operating the operation lever 65. In this case, the nip portions N1 and N2 of the first correction roller pair 31 and the second correction roller pair 32 may be opened with a large gap.

  Next, the paper is experimentally supplied and a crimped postcard manufacturing operation is performed, and it is confirmed whether or not the paper discharged to the paper receiving portion 9 is curled.

  When the discharged paper is curled downward, the cam 56 is rotated by lowering the operation lever 65 as shown in FIG. 9, and the elastic force of the first coil spring 55 is used to The link 51a and the lower link 51b are lowered, whereby the second correction roller pair 32 is lowered. After the second correction roller pair 32 is lowered by an appropriate amount, the test processing operation is performed again.

  The test operation as described above is repeated, and when the curled paper is no longer curled, the actual crimp postcard manufacturing operation is performed. In addition, once the raising / lowering position of the second correction roller pair 32 is determined, the work can be performed at the raising / lowering position substantially the same in the next work.

[Crimp postcard manufacturing work]
A brief description of the work to produce a crimped postcard. In FIG. 1, unprocessed sheets of pressure-bonding postcards S are stacked on the sheet feeding unit 8, and these sheets S are supplied one by one into the first transport device 1 by a sheet feeding mechanism. The A pressure sensitive adhesive that is bonded to the sheet S by applying a certain pressure or more is applied to a predetermined location.

  In FIG. 2, a sheet S conveyed in the first conveying direction D1 in the first conveying apparatus 1 is folded in two along a fold line in a direction perpendicular to the first conveying direction D1 in the sheet folding unit 11. Alternatively, the sheet is folded in three and then cut along the transport direction by the slitter 12 and supplied to the second transport device 2.

  In the second transport device 2, the folded sheet S is transported in the second transport direction D2 by the intermediate transport unit 13, and is sealed by being crimped by the upper and lower press rollers 21 and 22 in the sheet press unit 14. Next, the curl correction unit 15 corrects the curl and then discharges it to the paper receiving unit 9.

  11 and 12 show the action during curl correction, and a case where downward curling occurs in the paper S in the paper crimping section 14 as shown in FIG. 11 will be described. The folded sheet S curled downward and discharged from the nip portion N0 of the sheet crimping section 14 is promptly guided between the guide plates 45a and 45b by the inclined end portions of the guide plates 45a and 45b. The first correction roller pair 31 is conveyed to the first nip portion N1.

  The sheet S discharged substantially horizontally from the nip portion N1 of the first correction roller pair 31 is forcibly guided downward by the intermediate guide plates 83a and 83b, and then to the nip portion N2 of the second correction roller pair 32. Supplied with.

  In FIG. 12, the folded paper S is sandwiched between the nip portions N1 and NN2 that are positioned at different levels in the vertical direction, and finally has a convex shape along the outer peripheral surface of the second upper correction roller 32a. By curving, the downward curl is corrected, becomes a straight line when viewed from the side, and is discharged to the paper receiver 9 in FIG. Since the curl is corrected, the paper S after the press bonding is neatly stacked on the paper receiving unit 9.

  In a test processing operation at the preparation stage, in a model in which the paper is curled upward by the crimping action, the operation lever 65 is operated upward to raise the second correction roller pair 32 as shown in FIG. Accordingly, as shown in FIG. 14, the second sheet conveyance surface M2 of the second correction roller group 32 is set to be positioned above the first sheet conveyance surface M1 of the first correction roller pair 31. Is done. At the same time, the intermediate guide plates 83a and 83b also change so that the end portion on the second correction roller pair 32 side is positioned above the end portion on the first correction roller pair 31 side.

[Effect of the embodiment]
(1) In FIG. 6, the vertical position of the second correction roller pair 32 of the curl correction unit 15 can be displaced in the direction perpendicular to the first paper transport surface M1, and thus occurs at the paper pressure bonding unit 14. By adjusting the position of the second correction roller pair 32 with respect to the first sheet conveying surface M1 of the first correction roller pair 31 according to the direction and amount of the sheet curl, it is possible to accurately adjust the curl state of the sheet. It can be straightened (planar) and can provide a folding sheet with good quality. In addition, as shown in FIG. 2, the paper sheets after the press bonding can be stacked orderly in the paper receiving portion 9.

(2) In FIGS. 6, 10, and 14, the second correction roller pair 32 is always arranged so that the second paper transport surface M <b> 2 is parallel to the first paper transport surface M <b> 1. The paper discharged from the curl correction unit 15 is corrected in curl and always discharged in a horizontal posture, and the paper processing conveyance after the curl correction unit 15 is stabilized.

(3) In FIG. 2, since the curl correction unit 15 is disposed in the next process of the sheet press-bonding unit 14, the curl can be quickly corrected after the press bonding and before the adhesive is cured.

(4) In this embodiment, in FIG. 6, the upper guide plate 45a is configured to be openable and closable among the guide plates 45a and 45b arranged on the upstream side of the first conveyance roller pair 31 in the sheet conveyance. Yes. As a result, the folded sheet S can be directly supplied to the first correction roller pair 31 by manual feeding. That is, even if curl remains on the curled paper that has been curled, it can be straightened by supplying it to the curl straightening unit 15 by manual feeding again.

[Other embodiments]
(1) Referring to FIG. 4, as the second invention of the present application, the second sheet conveying surface M <b> 2 is set in advance without changing the position of the second correcting roller pair 32 in the curl correcting unit 15. The second correction roller pair 32 may be arranged and fixed so as to be shifted in a direction perpendicular to the first sheet conveying surface M1. Paper crimping processing devices such as crimping postcard manufacturing devices have different manufacturing errors or environments for each device, and curl often occurs in a substantially constant direction, so if you can predict the curl direction of a specific model in advance, Accordingly, the second straightening roller pair can be fixed.

  According to the second invention, the position changing mechanism is not required, and the structure of the apparatus is simplified.

(2) FIG. 15 is a schematic diagram of the third aspect of the invention, and instead of the first and second straightening roller pairs, a first straightening guide comprising a pair of upper and lower guide plates 91a and 91b on the upstream side of paper conveyance. 91, and a second correction guide 92 composed of a pair of upper and lower guide plates 92a and 92b on the downstream side of the sheet conveyance. The second correction guide 92 is movable in a direction perpendicular to the first sheet conveyance surface M1 of the first correction guide 91, and the guide plates 83a and 83b of the intermediate guide 83 are downstream of the sheet conveyance downstream end. The position of the part can be changed in the vertical direction together with the second correction guide 92.

  The functions and operations in the third invention are the same as those of the first correction roller pair 31, the second correction roller pair 31, and the intermediate guide plates 83a and 83b in the first embodiment.

  In the third invention, only the second correction roller pair 32 may be replaced with the second correction guide 92, or only the first correction roller pair 31 may be replaced with the first correction guide 91. In any case, the function and action are the same as those in the case where the first and second straightening roller pairs 31 and 32 are provided.

(3) In each of the above embodiments, the curl correction unit is arranged in the next step of the crimping unit, and the curl of the folded paper is corrected immediately after the crimping. It can also be set as the structure which reaches a curl correction part through this process. In this case, if the curl is corrected at the curl correcting portion within one minute after the crimping, the curl can be easily corrected and a sufficient effect can be obtained. However, after a few minutes have passed since crimping, curl correction becomes difficult due to the condition of the adhesive, etc., so the curl correction effect is greatly reduced and curl correction becomes insufficient. In addition, even when the paper that has been left for one day without being subjected to curl correction after being crimped is again crimped by the crimping part and then subjected to curl correction, the effect of curl correction on the elapsed time after the second crimping is the same. Therefore, it is preferable that the curl correction unit be arranged so as to be corrected within one minute at the lowest conveyance speed after the pressure bonding.

(4) In the above embodiment, a single sheet of paper is stacked and supplied to the paper supply unit. However, continuous paper is supplied instead of the single sheet of paper, and a cutting unit (not shown) It is also possible to cut a continuous sheet into a predetermined length along a direction orthogonal to each other to form a single sheet. After cutting into a single sheet of paper, as in the case of the above-described embodiment, the paper folding part and the subsequent parts may be conveyed and subjected to predetermined processing.

(5) In the above embodiment, the supplied paper is folded inside the apparatus, and finally crimped to correct the curl. However, as an apparatus that supplies the already folded paper and performs the crimping process. For example, a sheet feeding unit, a sheet crimping unit, and a curl correcting unit are provided, and the folded sheet supplied from the sheet feeding unit is sealed by crimping with the upper and lower pressing rollers in the sheet crimping unit, and then the curl correcting unit In this case, the curl may be corrected and then discharged.

(6) In the embodiment, as shown in FIG. 1, the first transport device having the first transport direction and the second transport device having the second transport direction are formed in an L shape in plan view. Although the arrangement is such that the conveyance direction of the first conveyance device and the conveyance direction of the second conveyance device are the same, both the conveyance devices are arranged continuously on the same straight line in plan view You can also

14 Paper pressure bonding unit 15 Curl correction unit 21, 22 Pressure roller 31 First correction roller pair 31a, 31b Upper and lower first correction roller 32 Second correction roller pair 32a, 32b Upper and lower second correction rollers 51a, 51b Link 56, 65 Cam, operation lever (movement mechanism)
91 First correction guide 92 Second correction guide

Claims (9)

In a paper pressure bonding apparatus provided with a paper pressure bonding portion having at least a pair of pressure rollers for pressure-bonding folded paper,
A curl correction unit for correcting the curl of the paper is disposed on the downstream side of the paper conveyance of the paper pressure bonding part,
The curl correction unit receives, holds, and conveys the folded paper discharged from the paper crimping unit, and a second correction roller disposed on the downstream side of the first correction roller pair. And a pair of straightening rollers,
The second correction roller pair can change its vertical position by a parallel link mechanism composed of a pair of upper and lower parallel links with respect to the first correction roller pair whose vertical position is fixed. Supported,
The second correction roller pair is arranged so that the second sheet conveyance surface by the second correction roller pair is parallel to the first sheet conveyance surface by the first correction roller pair;
The curl correction unit corrects the curl of the paper curled downward after the press-bonding by setting the second correction roller pair at a position below the first correction roller pair, and By setting the second straightening roller pair at an upper position with respect to the first straightening roller pair, the curl of the paper curled upward after the press bonding is corrected. Paper crimping equipment. In a paper pressure bonding apparatus provided with a paper pressure bonding portion having at least a pair of pressure rollers for pressure-bonding folded paper,
A curl correction unit for correcting the curl of the paper is disposed on the downstream side of the paper conveyance of the paper pressure bonding part,
The curl correction unit receives, holds, and conveys the folded paper discharged from the paper crimping unit, and a second correction roller disposed on the downstream side of the first correction roller pair. And a pair of straightening rollers,
The second sheet conveying surface by the second correction roller pair is deviated from the first sheet conveying surface by the first correction roller pair in a direction perpendicular to the first sheet conveying surface. The second straightening roller pair is fixed,
The paper pressure-bonding processing apparatus, wherein the pressure-bonding roller of the paper pressure-bonding part and the correction roller pair of the curl correction part are driven by the same driving means. In the paper press-bonding apparatus according to claim 2 ,
The second correction roller pair is arranged so that the second sheet conveyance surface by the second correction roller pair is parallel to the first sheet conveyance surface by the first correction roller pair, Paper crimping equipment. In the paper press-bonding processing apparatus according to any one of claims 1 to 3,
The curl correction unit is a paper pressure-bonding processing device that is disposed downstream of the paper pressure-bonding unit as a next step of the paper pressure-bonding unit. In the paper press-bonding processing apparatus according to any one of claims 1 to 4,
The curl correction unit is a sheet press processing apparatus that is disposed at a distance at which the sheet reaches the minimum processing speed within one minute after passing through the sheet press unit. In the paper press-bonding apparatus according to claim 4 or 5, which refers to claim 1,
A paper pressure-bonding processing apparatus, wherein the pressure-bonding roller of the paper pressure-bonding part and the correction roller pair of the curl correction part are driven by the same driving means. In the paper crimping processing apparatus according to any one of claims 1 to 6,
The paper pressure processing apparatus, wherein a peripheral speed of the correction roller pair of the curl correction unit is set to be the same as a peripheral speed of the pressure roller of the paper pressure bonding part. In a paper pressure-bonding processing method including a pressure-bonding step of pressure-bonding a folded paper whose adhesive is applied to a mating surface with at least a pair of pressure-bonding rollers,
As the next step of the crimping step, it has a curl correction step of correcting the curl of the paper after the crimping,
In the curl correcting step, the paper is placed on the side opposite to the curl side by the cooperative operation of the first upstream correction roller pair and the second downstream transport roller pair having different paper transport surfaces. It is designed to curve
In the curl correction step, the sheet conveyance surface of the second conveyance roller pair is set to be parallel to the sheet conveyance surface of the first correction roller pair,
The curl correcting step corrects curling of the paper curled downward after the press-bonding by setting the second correction roller pair at a position below the first correction roller pair, and By setting the second straightening roller pair at an upper position with respect to the first straightening roller pair, the curl of the paper curled upward after the press bonding is corrected. Paper crimping method. In the paper press-bonding processing method according to claim 8,
The curl correction process is a paper pressure-bonding processing method that is performed within one minute at the minimum processing speed after the pressure-bonding process is completed.

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