Corner back forming device
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- DUPLO CORP
- Filing Date
- 2021-12-02
- Publication Date
- 2026-08-05
AI Technical Summary
【0008】 本発明によれば、角背成形に要する時間を短縮できる。
Smart Images
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Abstract
Description
Technical Field
[0006] , , ,
[0005] , ,
[0001] The present invention relates to a square-back forming device.
Background Art
[0002] Patent Document 1 discloses a device that creates a booklet by folding a sheet bundle in half at the bound part, pressing a roller against the back of the booklet, and moving it to finish the square back. In this device, the back of the booklet being conveyed with the back at the front is made to abut against a stopper and stopped, gripped by a clamper, then the stopper is retracted, and the square-back roller is moved to form the square back.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In the device of Patent Document 1, in order to prevent interference between the square-back roller and the stopper, when the square-back forming is finished, the square-back roller is made to wait at the non-operating position of one end of the clamping jaw. Therefore, when forming the square back of the next booklet, regardless of the length of the back of the booklet, the square-back roller starts moving from this non-operating position. When the length of the back of the booklet is short, the moving distance from when the square-back roller starts moving until it presses against the back of the booklet becomes long. In other words, the useless moving distance during which the square-back roller does not press against the back of the booklet during its movement becomes long. This hinders the shortening of the time required for square-back forming.
[0005] The present invention has been made in such a situation, and an exemplary object of one aspect thereof is to provide a square-back forming device capable of shortening the time required for square-back forming.
Means for Solving the Problems
[0006] To solve the above problems, a square spine forming apparatus according to one aspect of the present invention comprises a roller movable in a predetermined direction, a clamp that grips a booklet such that the longitudinal direction of the spine coincides with the direction of movement of the roller and the spine is pressed when the roller moves in the predetermined direction, and a control unit that moves the roller from a starting position to an ending position while the clamp is gripping the booklet. At least one of the starting position and the ending position is a position corresponding to the length of the spine of the booklet. The end position becomes the start position in the molding of the next booklet. ru. A square-spine forming apparatus according to another aspect of the present invention comprises a roller movable in a predetermined direction, a clamp that grips a booklet such that the longitudinal direction of the spine coincides with the direction of movement of the roller and the spine is pressed when the roller moves in the predetermined direction, a control unit that moves the roller from a starting position to an ending position while the clamp is gripping the booklet, and a stopper that brings the spine of the incoming booklet into contact with the stopper to stop the booklet at a predetermined position. At least one of the starting position and the ending position is a position corresponding to the length of the spine of the booklet, the starting position is a position corresponding to the length of the spine of the booklet and does not interfere with the stopper, and the starting position includes a position between a plurality of stoppers arranged in a predetermined direction.
[0007] Furthermore, any combination of the above components, or any substitution of the components or expressions of the present invention between methods, apparatus, systems, etc., are also valid embodiments of the present invention. [Effects of the Invention]
[0008] According to the present invention, the time required for square back molding can be reduced. [Brief explanation of the drawing]
[0009] [Figure 1] This diagram shows the overall configuration of the bookbinding system according to the embodiment. [Figure 2] Figure 1 is a side view of the saddle-stitch folding machine and the square-back forming machine. [Figure 3] This is a block diagram showing the functional configuration, centered on the control device of the bookbinding system according to the embodiment. [Figure 4] Figures 4(a) and 4(b) show an example of a square back molding scene using a square back molding machine. [Figure 5] Figures 5(a) and 5(b) show an example of a square back molding scene using a square back molding machine. [Figure 6] Figures 6(a) and 6(b) show an example of a square back molding scene using a square back molding machine. [Figure 7] Figures 7(a) and 7(b) show an example of a square back molding scene using a square back molding machine. [Figure 8]This is a top view showing the square back stopper and square back roller of a square back molding apparatus according to a modified example. [Modes for carrying out the invention]
[0010] The present invention will be described below with reference to the drawings, based on preferred embodiments. The embodiments are illustrative and not limiting, and not all features or combinations thereof described in the embodiments are necessarily essential to the invention. The same or equivalent components, members, and processes shown in each drawing will be denoted by the same reference numerals, and redundant explanations will be omitted as appropriate.
[0011] Figure 1 is a block diagram showing the overall configuration of a bookbinding system 10 according to an embodiment. The bookbinding system 10 is a system for performing post-processing on sheets printed with characters and images, and comprises a sheet supply device 100, a saddle-stitch folding device 200, a corner spine forming device 300, a cutting device 400, a stacker 500, and a control device 600. The sheets are not particularly limited, but are typically paper.
[0012] The sheet supply device 100 supplies sheets one at a time. The saddle-stitch folding device 200 performs saddle-stitch folding on the sheets supplied from the sheet supply device 100. Specifically, the saddle-stitch folding device 200 stacks the sheets supplied one by one from the sheet supply device 100 to create a sheet bundle, sews the sheet bundle together, for example in the middle, and folds it in half at the sewn point to create a booklet. The square spine forming device 300 forms the spine of the booklet created by the saddle-stitch folding device 200 into a square shape. The cutting device 400 trims the edges, top, and bottom of the booklet to complete it. The completed booklets are stacked in the stacker 500. The control device 600 is, for example, an information processing terminal such as a PC, and comprehensively controls the bookbinding system 10.
[0013] FIG. 2 is a side view schematically showing the center stitching device 200 and the corner-back forming device 300. The sheet is conveyed in the arrangement direction of the center stitching device 200 and the corner-back forming device 300. Hereinafter, the direction in which the sheet is conveyed (the direction from right to left in FIG. 1) is referred to as the conveyance direction Y, and the direction orthogonal to the conveyance direction Y (the direction orthogonal to the plane of the paper in FIG. 1) is referred to as the width direction X. Further, regarding the width direction X, the right side as viewed in the conveyance direction Y from the upstream side is referred to as the right side in the width direction X, and the left side is referred to as the left side in the width direction X. Further, regarding the sheet and the booklet, the downstream edge in the conveyance direction Y is referred to as the leading edge, and the upstream edge is referred to as the trailing edge.
[0014] The center stitching device 200 includes a stitching portion 202 that creates a sheet bundle and stitches the sheet bundle, a folding portion 204 that folds the stitched sheet bundle at the stitched portion, and a discharge portion 206 that discharges the folded sheet bundle to the corner-back forming device 300.
[0015] The stitching portion 202 includes a conveyance mechanism 210 that conveys the sheet downstream, a stitching stopper 212, a pair of side guides 214, a back jogger 216, and a stitching unit 218. The sheet supplied from the sheet supply device 100 abuts against the stitching stopper 212 and stops, and the sheet is stacked at this position to create a sheet bundle.
[0016] The pair of side guides 214 position the sheet, and thus the sheet bundle, in the width direction X. Specifically, the interval between the pair of side guides 214 is adjustable and is adjusted in advance to an interval corresponding to the width of the sheet (for example, equal to the sheet width). The sheet is conveyed between the pair of side guides 214 and is positioned in the width direction X by the pair of side guides 214 before abutting against the stitching stopper 212.
[0017] The back jogger 216 repeatedly reciprocates between a position slightly separated from the trailing edge of the sheet bundle toward the upstream side and a position abutting against the sheet bundle, thereby pressing the sheet bundle against the stitching stopper 212 a plurality of times. Thereby, the front and rear end faces of the sheet bundle are aligned, and the sheet bundle is positioned in the front and rear directions.
[0018] The binding unit 218 binds the sheet bundle. The binding unit 218 includes a stitcher 220 and a clincher 222. The stitcher 220 drives a binding needle into the sheet bundle, and the clincher 222 bends the tip of the driven needle. When the sheet bundle is bound, the binding stopper 212 descends, and the sheet bundle is conveyed to the folding portion 204.
[0019] The folding portion 204 includes conveying mechanisms 230, 231 for conveying the sheet bundle to the downstream side, a folding stopper 232, a pair of side guides not shown in FIG. 2, a back stopper 236, a pair of folding rollers 238, and a folding knife 240. The sheet bundle conveyed from the binding portion 202 abuts against the folding stopper 232 and stops.
[0020] The pair of side guides position the sheet bundle in the width direction X. Specifically, the interval between the pair of side guides is adjustable and is adjusted in advance to an interval corresponding to the width of the sheet (for example, equal to the sheet width). The sheet bundle is positioned in the width direction X by the pair of side guides as it is conveyed between the pair of side guides until it abuts against the folding stopper 232. The back stopper 236 abuts against the rear end of the sheet bundle, presses the sheet bundle against the folding stopper 232, and positions the sheet bundle in the conveying direction Y.
[0021] The pair of folding rollers 238 are arranged side by side in the conveying direction Y such that the axial direction faces the width direction X. When the folding knife 240 is raised between the pair of folding rollers 238 in a state where it is positioned in the conveying direction Y by the folding stopper 232 and the back stopper 236, the sheet bundle is卷入 between the pair of folding rollers 238. The pair of folding rollers
[0022] The discharge section 206 includes an upstream transport mechanism 242 and a downstream transport mechanism 244. In other words, the discharge section 206 has two transport mechanisms. The downstream transport mechanism 244 is located downstream of the upstream transport mechanism 242. The upstream transport mechanism 242 transports the bundle of booklet-shaped sheets fed from the folding section 204 to the downstream transport mechanism 244. The downstream transport mechanism 244 transports the booklets fed from the upstream transport mechanism 242 to the square-back forming position, which is the position for square-back forming in the square-back forming device 300. At the square-back forming position, the leading edge (i.e., the spine) of the booklet is located in the square-back forming device 300, and the rear end of the booklet is located in the saddle-stitch folding device 200. In other words, the rear end of the booklet, which is stopped at the square-back forming position for square-back forming, is supported by the belt of the downstream transport mechanism 244. Once the square-back molding is complete, the downstream transport mechanism 244 transports the booklet located at the square-back molding position further downstream.
[0023] The upstream transport mechanism 242 obtains power from the main motor (not shown) of the saddle-stitching and folding device 200 and drives the belt in a continuous circular motion. The downstream transport mechanism 244 obtains power from a different power source than the upstream transport mechanism 242, i.e., a different power source than the main motor of the saddle-stitching and folding device 200, or obtains power from the main motor of the saddle-stitching and folding device 200 via an electromagnetic clutch or the like, and drives the belt in a continuous circular motion. Therefore, as described above, the upstream transport mechanism 242 drives the belt in a continuous circular motion, while the downstream transport mechanism 244 can stop the belt while the booklet is stopped for spine forming.
[0024] The square spine forming device 300 includes a square spine stopper 302, a pair of clampers 304, a square spine roller 306, and a bottom guide 308. The booklet is transported from the saddle-stitch folding device 200 with the spine facing the front and the longitudinal direction of the spine coinciding with the width direction X. The booklet stops when its spine contacts the square spine stopper 302. The pair of clampers 304 grip the vicinity of the spine of the stopped booklet.
[0025] The square spine roller 306 is configured to be rotatable around a vertical axis and movable in the width direction X. When the square spine stopper 302 is retracted to a position where it does not interfere with the movement of the square spine roller 306, and the pair of clampers 304 are gripping the booklet, the square spine roller 306 is moved in the width direction X, the spine of the booklet is pressed against the square spine roller 306, and the booklet is finished with a square spine. After the booklet is finished with a square spine, the grip of the pair of clampers 304 is released, and the booklet with the square spine is transported to the cutting device 400.
[0026] The bottom guide 308 is a plate-shaped member that can rotate around a pivot axis 310 that extends in the axial direction. This pivot axis 310 also serves as the roller axis of the lower transport roller 320 of a pair of transport rollers 320 located downstream of the square back stopper 302 and the square back roller 306. When forming a square back, the bottom guide 308 takes a retracted position (solid line position) away from the space in which the square back roller 306 moves so as not to come into contact with the square back roller 306. When transporting a booklet, the bottom guide 308 takes a position (dashed line position) entering the space in order to support the bottom surface of the booklet with its main surface 308a. This prevents the booklet from getting caught and jammed in the space in which the square back roller 306 moves.
[0027] Instead of the bottom guide 308, guide plates may be provided on both sides of the square back roller 306 in the width direction X, having guide surfaces parallel to the bottom surface of the booklet being transported. The relative position of these guide plates to the square back roller 306 is fixed, and therefore they are movable in the width direction X together with the square back roller 306. Furthermore, the dimensions of the guide plates in the width direction X are shorter than those of the booklet, so that they do not protrude outside the device regardless of the position of the square back roller 306. When transporting a booklet, the guide plates support a portion of the bottom surface of the booklet in the width direction X.
[0028] Figure 3 is a block diagram showing the functional configuration of the bookbinding system 10, centered on the control device 600. Each block of the control device 600 can be implemented in hardware terms by elements and mechanical devices, including the CPU (Central Processing Unit) of a computer, and in software terms by computer programs, etc., but here, the functional blocks that are implemented through the coordination of these are depicted. Therefore, it will be understood by those skilled in the art who have read this specification that these functional blocks can be implemented in various forms by combinations of hardware and software.
[0029] The control device 600 comprises a main control unit 602, a sheet supply control unit 604, a binding control unit 606, a folding control unit 608, an ejection control unit 610, a corner spine control unit 612, and a cutting control unit 614.
[0030] The main control unit 602 comprehensively controls the bookbinding system 10. The main control unit 602 accepts input regarding the definition of a bookbinding job, for example. The main control unit 602 may also display a predetermined job management screen on a predetermined display and accept input regarding the job definition via the job management screen. The job definition includes, for example, the number of booklets to be bound and the size of the sheets included in the booklets (the size of the spine of the booklets). The sheet supply control unit 604, the binding control unit 606, the folding control unit 608, the discharge control unit 610, the corner spine control unit 612, and the cutting control unit 614 each control the sheet supply device 100, the binding unit 202 and folding unit 204 of the saddle stitching and folding device 200, the corner spine forming device 300, and the cutting device 400, respectively, based on the job definition.
[0031] The square back forming apparatus 300 further includes a square back stopper drive mechanism 312 that moves the square back stopper 302 in the width direction X or in the vertical direction, a stopper drive mechanism 316 that moves or stops the square back roller 306 in the width direction X, a clamper drive mechanism 314 that causes a pair of clampers 304 to grip a booklet or release the grip by the clampers, and a bottom guide drive mechanism 318 that switches the position of the bottom guide 308. Each drive mechanism is configured, for example, to include a motor and is controlled by the square back control unit 612.
[0032] The above is the basic configuration of the bookbinding system 10.
[0033] As a variation, the bookbinding system 10 may be equipped with a printer that prints characters and images on sheets instead of the sheet supply device 100, and the sheets may be fed one by one from the printer.
[0034] Next, we will explain in detail the square back forming process using the square back forming apparatus 300. Figures 4(a)-(b), 5(a)-(b), 6(a)-(b), and 7(a)-(b) show an example of a square back forming scene using the square back forming apparatus 300. In each of Figures 4(a)-(b), 5(a)-(b), 6(a)-(b), and 7(a)-(b), the upper figure is a plan view, and the lower figure is a side view seen in the width direction X. In this example, the square back forming apparatus 300 is equipped with a pair of square back stoppers 302.
[0035] In Figure 4(a), the square-backed roller 306 is located at the right end of the movable width range X R (hereinafter referred to as the "movable range R").
[0036] In Figure 4(b), the spine stopper 302 is moving to the stopping position. The “stopping position” is a position where the transported booklet can be stopped, and is a position corresponding to the length of the booklet’s spine. The “position corresponding to the length of the booklet’s spine” on the spine stopper 302 may be a position that can contact the vicinity of both ends of the booklet’s spine in the width direction X. The “ vicinity of both ends of the booklet’s spine” may be, for example, a position where at least a part of the spine stopper 302 contacts the ends of the booklet when the spine of the booklet is divided into four equal parts in the width direction X. The “length of the booklet’s spine” may be determined based on the sheet size entered as part of the job definition, or based on the sheet size acquired by a sensor provided at an appropriate location, or it may be the length of the booklet’s spine acquired by a sensor provided at an appropriate location.
[0037] In this example, booklet S1 is being transported, so the spine stopper 302 moves to a stopping position corresponding to the spine length of booklet S1. If booklet S2, which has a longer spine than booklet S1, is being transported, the spine stopper 302 will move to a stopping position corresponding to the spine length of booklet S2 (the position of the spine stopper 302 shown by the dotted line). In other words, the spine stopper 302 moves to a stopping position corresponding to the spine length of the transported booklet, and the longer the spine length of the booklet, the further outward it moves in the width direction X (further from the center in the width direction X).
[0038] In Figure 4(b), the square back roller 306 has moved to the starting position. The "starting position" is the position of the square back roller 306 when square back forming is started. More specifically, it is the position of the square back roller 306 when both conditions are met: the booklet that has reached the square back forming position is gripped by the clamper 304, and the square back stopper 302 has moved to a retracted position where it does not interfere with the movement of the square back roller 306.
[0039] The corner spine control unit 612 can determine the starting position in the width direction X. In this example, the starting position is a position corresponding to the length of the spine of the booklet being transported, and a position that does not interfere with the corner spine stopper 302 at the stopping position. The "position corresponding to the length of the spine of the booklet" at the starting position is a position where the corner spine roller 306 does not come into contact with the booklet when the booklet is transported, and a position that avoids the outermost position of the movable range R (i.e., a position closer to the booklet than when it is located at the end of the movable range R).
[0040] Preferably, the "position corresponding to the spine length of the booklet" is a position in the width direction X where the square spine roller 306 is close to the booklet. The "close position" may be, for example, a position where the distance L between the square spine roller 306 and the booklet in the width direction X is less than or equal to the radius of the square spine roller 306, as shown in Figure 5(a) below, or a position where the distance L between the square spine roller 306 and the booklet in the width direction X is 10 mm or less. In this example, since booklet S1 is being transported, the square spine roller 306 moves to a starting position close to booklet S1. If booklet S2, which has a longer spine than S1, is being transported, the square spine roller 306 moves to a starting position close to booklet S2 (the position of the square spine roller 306 shown by the dotted line). In other words, preferably, the square spine roller 306 moves to a starting position corresponding to the spine length of the booklet being transported, and the longer the spine length of the booklet, the further outward it moves to a starting position in the width direction X (a position farther from the center in the width direction X).
[0041] In Figure 5(a), the transported booklet S1 comes into contact with the square-back stopper 302 and stops. The position of the booklet S1 at this time is the square-back forming position, which is the position for square-back forming.
[0042] In Figure 5(b), a pair of clampers 304 grip the vicinity of the spine of the booklet S1, and the spine stopper 302 is retracted to a retracted position. In this example, the retracted position is a position raised from the stopping position. Preferably, the booklet S1 is gripped by the pair of clampers 304 before the spine stopper 302 is retracted to the retracted position, but the spine stopper 302 may be retracted before the booklet S1 is gripped by the clampers 304, or the retraction of the spine stopper 302 and the gripping of the booklet S1 by the clampers 304 may be performed substantially simultaneously.
[0043] With the clamp 304 gripping the booklet S1, the square spine roller 306 is moved from the starting position to the ending position described later. Figure 6(a) shows the movement in progress. As the square spine roller 306 moves along the booklet S1 in the width direction X, the spine of the booklet S1 is pressed by the square spine roller 306.
[0044] In Figure 6(b), the spine roller 306 has moved to the end position and stopped. The entire spine of the booklet S1 is finished with a square spine. The "end position" is the position of the spine roller 306 when the spine forming process begins, and more specifically, it is the position of the booklet when the grip of the booklet by the clamper 304 is released in order to transport the booklet toward the cutting device 400. In this example, the "end position" is a position corresponding to the length of the spine of the booklet S1, and is a position that does not interfere with the spine stopper 302 when the spine stopper 302 moves from the retracted position to the stop position. The "position corresponding to the length of the spine of the booklet" for the end position is, similar to the start position, a position where the spine roller 306 does not come into contact with the booklet, and where the distance between the spine roller 306 and the booklet in the width direction X is close.
[0045] In Figure 7(a), the gripping by the pair of clamps 304 is released, and the booklet S1, which has been finished with a square spine, is being transported toward the cutting device 400.
[0046] In Figure 7(b), the roller is moving to the stop position in preparation for the next booklet. In this example, the spine length of the next booklet is the same as that of the previous booklet, and the end position of the spine forming for the previous booklet becomes the start position for the spine forming of the next booklet. In this case, the start position will be a position corresponding to the spine length of the booklet without moving the spine roller 306.
[0047] In the above description, as a preferred example, the square back roller 306 is moved to the starting position before the booklet is transported to the square back forming machine 300. However, the description is not limited to this, and the square back roller 306 may be moved to the starting position after the booklet has reached the square back forming position, as long as the position of the square back roller 306 before moving to the starting position does not come into contact with the transported booklet. For example, when the booklet is gripped by a pair of clampers 304 and then the square back stopper 302 is moved to the retracted position, or when the retraction of the square back stopper 302 and the gripping of the booklet by the clampers 304 are performed substantially simultaneously, the square back roller 306 should be moved so that it is completed to move to the starting position before the square back stopper 302 is moved to the retracted position. For example, when the square spine stopper 302 is moved to a retracted position and then the booklet is gripped by the pair of clampers 304, the square spine roller 306 should be moved so that it is completed to its starting position before the pair of clampers 304 grip the booklet.
[0048] Furthermore, while the above description described a preferred example where both the start and end positions correspond to the length of the spine of the booklet, the explanation is not limited to this, and it is sufficient if at least one of the start and end positions corresponds to the length of the spine of the booklet. For example, one of the start and end positions may be at the end of the range R in the width direction X from which the corner spine roller 306 can move.
[0049] The effects of the above-described square back molding apparatus 300 will be explained.
[0050] According to this embodiment, since at least one of the start position and the end position is a position corresponding to the length of the spine of the booklet, compared to the case where both the start position and the end position are not corresponding to the length of the spine of the booklet, specifically, for example, compared to the case where one end of the width direction X range R in which the square spine roller 306 can move is the start position and the other end is the end position, the distance that the square spine roller 306 travels when forming the square spine of the booklet is shortened, the time required for square spine forming is reduced, and productivity is improved.
[0051] Furthermore, according to this embodiment, preferably, the square back roller 306 is moved to the starting position before the booklet is transported to the square back forming device 300. This ensures that the square back roller 306 does not come into contact with the transported booklet.
[0052] If the spine stopper 302 comes into contact with the center of the spine of the booklet, the booklet will tilt and stop, preventing proper spine forming. In contrast, according to this embodiment, the spine stopper 302 is moved to a position corresponding to the length of the spine of the booklet. This allows the spine stopper 302 to come into contact with the vicinity of both ends of the spine of the booklet, thus preventing the booklet from tilting and stopping.
[0053] Furthermore, according to this embodiment, preferably, the end position is a position corresponding to the length of the spine of the booklet, and the end position becomes the starting position for the corner spine forming of the next booklet. This means that the starting position will be a position corresponding to the length of the spine of the booklet without having to move the corner spine roller 306. In other words, productivity is improved because it is not necessary to move the roller to a starting position corresponding to the length of the spine of the booklet.
[0054] The present invention has been described above based on embodiments. These embodiments are illustrative, and it will be understood by those skilled in the art that various modifications are possible in combinations of these components and processing processes, and that such modifications also fall within the scope of the present invention. Such modifications will be described below.
[0055] In the embodiment described, the case in which the square spine forming apparatus 300 is equipped with two square spine stoppers 302 and moves two square spine rollers 306 to a position corresponding to the length of the spine of the booklet was described, but the invention is not limited to this. For example, the square spine forming apparatus 300 may be equipped with a plurality of square spine stoppers 302, and these plurality of square spine stoppers 302 may be provided at equal intervals in the width direction X and immovably in the width direction X.
[0056] Figure 8 is a top view showing the square back stoppers 302 of a modified square back forming apparatus 300. In this example, the square back forming apparatus 300 includes four square back stoppers 302. The four square back stoppers 302 are movable in the vertical direction but are fixed in the width direction X. A booklet S1, shown by a solid line, with a relatively short spine length in the width direction X, is stopped by the two square back stoppers 302 on the central side in the width direction X. A booklet S2, shown by a dashed line, with a relatively long spine length in the width direction X, is stopped by the four square back stoppers 302, including the two square back stoppers 302 on both ends in the width direction X.
[0057] In the case of a booklet with a relatively short spine length in the width direction X, such as booklet S1 shown by the solid line, the position of the square spine roller 306 shown by the solid line may be used as the starting position. In other words, the starting position may be the position between two square spine stoppers 302 that are adjacent to each other in the width direction X.
[0058] According to this modified example, since the multiple square back stoppers 302 are immovable in the width direction X, the square back stopper drive mechanism 312 can be made into a simple configuration.
[0059] Any combination of the embodiments and modifications described above is also useful as an embodiment of the present invention. The new embodiments resulting from these combinations possess the combined effects of the respective embodiments and modifications. Furthermore, it will be understood by those skilled in the art that the functions to be performed by each component described in the claims can be achieved by each component shown in the embodiments and modifications individually or in combination thereof. [Explanation of Symbols]
[0060] 10 Bookbinding system, 300 Square spine forming machine, 302 Square spine stopper, 304 Clamper, 306 Square spine roller, 600 Control device.
Claims
1. A roller that can move in a predetermined direction, A clamper that grips a booklet such that the longitudinal direction of the spine coincides with the direction of movement of the roller, and the spine is pressed when the roller moves in the predetermined direction, The clamp is equipped with a control unit that moves the roller from a starting position to an ending position while the clamp is gripping the booklet, At least one of the aforementioned start position and end position is a position corresponding to the length of the spine of the booklet. The aforementioned end position becomes the aforementioned start position in the molding of the next booklet, in a square-back molding apparatus.
2. It is equipped with a stopper that holds the spine of the incoming booklet in place by pressing it against the stopper, The square spine forming apparatus according to claim 1, wherein the starting position is a position corresponding to the length of the spine of the booklet and a position that does not interfere with the stopper.
3. The stopper is provided with a drive mechanism that moves it in the predetermined direction. The corner spine forming apparatus according to claim 2, wherein the control unit controls the drive mechanism and moves the stopper to a position corresponding to the length of the spine of the booklet.
4. The square back molding apparatus according to claim 2 or 3, wherein the starting position includes a position between a plurality of stoppers arranged in the predetermined direction.
5. A roller that can move in a predetermined direction, A clamper that grips a booklet such that the longitudinal direction of the spine coincides with the direction of movement of the roller, and the spine is pressed when the roller moves in the predetermined direction, A control unit moves the roller from the starting position to the ending position while the clamp is gripping the booklet, It includes a stopper that presses against the spine of the incoming booklet to stop it in a predetermined position, At least one of the aforementioned start position and end position is a position corresponding to the length of the spine of the booklet. The starting position is a position corresponding to the length of the spine of the booklet and a position that does not interfere with the stopper. The starting position includes the position between a plurality of stoppers arranged in the predetermined direction, in a square back molding apparatus.