JP6643614B2 - Paper creasing device - Google Patents

Description

  The present invention relates to a paper crease device that imparts a crease in the transport direction while transporting a sheet.

  A pair of creased rollers in which a convex roller having a ridge formed around the outer peripheral surface, and a concave roller having a concave groove formed around the outer peripheral surface in the same manner, sandwiching the paper transport path. Various scoring mechanisms (scoring devices) for providing a crease on a sheet provided and interposed therebetween have been used (for example, see Patent Document 1). For example, when the printed paper is folded for bookbinding, the crease is formed before the folding so that the folds are formed clearly and with good precision. Therefore, a folding mechanism that bends the sheet along the provided folding line is provided at the subsequent stage of the crease mechanism.

FIG. 30 is a diagram illustrating an example of the creased roller pair, and is a diagram of the creased roller pair viewed from the transport direction. A concave roller 902 having a concave groove 902a on the outer peripheral surface is disposed above a convex roller 901 having a convex ridge 901a on the outer peripheral surface. When the sheet P passes through the gap, the sheet P is bent so as to be pushed into the concave groove 902a by the projection 901a, and a downwardly convex folding line is provided.
Contrary to FIG. 30, if the concave roller is arranged upward and the convex roller is arranged downward, an upwardly convex folding line is provided.

JP 2014-214004 A

  When the sheet to be folded is relatively thin, it is desirable to arrange the creasing mechanism and the folding mechanism such that the direction of the convex shape of the folding line is outside the subsequent folding. This is because the sheet can be folded along the folding line because it can be folded along the convex shape given as the folding line. If the convex shape of the provided crease is bent so as to be inside the subsequent bending position, the crease may be deviated from the crease because it is bent in a direction opposite to the previously provided convex shape. .

  However, if the paper to be folded is thick paper and the direction of the convex shape of the folding line is outside the subsequent folding, after folding, the print layer cracks along the fold outside the fold. May occur. At the time of folding and folding, the printed layer is pulled and deformed in the direction perpendicular to the fold on the outer surface of the convex shape of the folding line. Since the amount of deformation is larger than that of thin paper, the paper cannot withstand the deformation and a back crack occurs.

  As a result of intensive studies, the inventor has found that this back cracking phenomenon can be effectively suppressed by setting the direction of bending to the direction in which the direction of the convex shape of the preformed crease is inside the fold. . In this case, the surface on the side pressed by the convex roller at the time of applying the folding line becomes the outside at the time of bending. When the printing layer is pressed in advance by the convex stripes of the convex roller, the resistance to deformation at the time of subsequent bending is increased, and back cracks can be avoided. Further, since the cardboard has strong stiffness, the fold is not deviated from the fold line even when the fold line is bent with the convex shape inside.

  Therefore, it is desirable that the direction of the convex shape of the folding line is reversed between the case of thin paper and the case of thick paper, but for that purpose, the convex roller and concave roller must be removed once, replaced upside down, and re-mounted. However, there was a problem that it was very troublesome and required skill.

  The present invention has been made in view of such a problem, and by changing the direction of the convex shape of the folding line by a simple operation, even if it is thick paper or thin paper, there is no back crack. It is an object of the present invention to provide a paper creasing device capable of obtaining a straight fold.

  One aspect of the paper crease device of the present invention for solving the above-described problem is a paper crease device that imparts a crease in the transport direction while transporting the conveyed paper. A first creased roller provided on one side of the conveying surface and having a ridge formed around the outer peripheral surface and a groove formed at a predetermined interval in the axial direction with respect to the ridge. A ridge formed on the other side of the conveyance surface to face the first creased roller and formed around the outer peripheral surface, and a recess formed at a predetermined interval in the axial direction with respect to the ridge. A second grooved roller having a groove, a position where the ridges of the first lined roller and a concave groove of the second lined roller face each other, and a position of the concave groove of the first lined roller and the second lined roller. At least one of the first creased roller and the second creased roller can be moved in the axial direction between the position where the ridge is opposed to the ridge. Has a dynamic mechanism, the.

  According to this aspect, the first scoring roller and the second scoring roller in which the concave groove and the ridge are arranged at a predetermined interval in the axial direction are opposed to each other, so that the first scoring roller can be replaced without replacing the roller itself. By a simple operation of moving at least one of the roller with one streak and the roller with the second streak in the axial direction, the direction of the convex shape of the crease can be changed. There is an advantage that a straight crease without a back crack can be obtained.

The order in which the ridges and grooves of the first creased roller are arranged in the axial direction and the order in which the ridges and grooves of the second creased roller are arranged in the axial direction may be the same.
The axial interval between the ridges and grooves of the first creased roller and the axial interval between the ridges and grooves of the second creased roller may be the same.

  The first scoring roller and the second scoring roller each have an outer peripheral surface having a predetermined width that is smaller in diameter than the tip of the ridge and larger than the bottom surface of the concave groove. The axial distance from the end on the side where is disposed to the ridge may be shorter than the axial distance between the ridge and the groove.

  According to this aspect, since the ridges and the grooves are provided on the predetermined outer peripheral surface side by side in the axial direction, the roller can be formed in a simple and inexpensive shape, and the first creased roller and the second creased When the concave groove of one roller of the roller is opposed to the convex line of the other roller, the convex line of one roller does not oppose the outer peripheral surface of the other roller. An unintentional trace is not formed on the sheet due to the sheet being inserted therebetween.

  The transport mechanism includes a transport roller provided adjacent to both sides of the first scoring roller or the second scoring roller in the axial direction, and one transport shaft that supports the transport roller. Even if the first scoring roller or the second scoring roller can be moved without moving the conveying roller adjacent to the scoring roller or the second scoring roller and the conveying shaft supporting the conveying roller. Good.

  According to this aspect, since the paper is nipped and transported by the transport rollers on both sides in the axial direction of the first and second crease rollers, the creasing can be performed while the paper is stably transported. A straight and firm folding line can be provided, and the operation is simplified because there is no need to move the transport roller in the axial direction when changing the direction of the convex shape of the folding line.

  The center of the first creased roller or the second creased roller may be disposed downstream of the center of the transport roller in the paper transport direction.

  If the center of each of the transport roller and the first and second creased rollers is aligned, there may be cases where the paper skews when the leading edge of the paper reaches the creased roller and abuts against the ridge. Was found by the inventor's earnest research and development. According to this aspect, the skew can be effectively prevented by making the paper nip the transport roller earlier than the creased roller.

  An actuator that drives the moving mechanism, a thickness information obtaining unit that obtains information about the thickness of the paper to be creasing, and a control unit that controls the actuator based on the thickness information obtained by the thickness information obtaining unit. May be provided.

  According to this aspect, the direction of the convex shape of the folding line can be automatically switched according to the thickness of the sheet to be applied, so that an apparatus with better operability can be obtained.

  A plurality of combinations of the first creased roller and the second creased roller are arranged in the transport direction, and the first creased rollers have the same axial position of the ridges and grooves, and the second creased roller The ridges and grooves are arranged such that the axial positions of the ridges and grooves are the same, and the moving mechanism simultaneously moves all of the plurality of first creased rollers or all of the plurality of second creased rollers. May be configured to be movable.

  According to this aspect, by providing a plurality of creased rollers in the transport direction, for example, by providing a crease so that the width of the crease is gradually reduced or the depth is gradually increased. v A solid folding line can be provided in a northern line, and the direction of the convex shape of the folding line can be easily changed by moving these plurality of creased rollers all at once.

  A folding mechanism that is provided downstream of the first and second creasing rollers in the transport direction and that folds the sheet along a folding line provided by the first and second creasing rollers; Before and after the movement of the first and second creasing rollers, the axial center positions of the opposed ridges and grooves of the first and second creasing rollers may coincide with the folding line of the folding mechanism.

  According to this aspect, after the folding line is provided, there is no need to position the paper so as to align the folding line with the folding line of the folding mechanism, so that the apparatus can be simply configured.

  According to the present invention, there is provided a paper crease device that can obtain a straight crease without a back crack even by thick operation by changing the direction of the convex shape of the crease by a simple operation. There is a merit that it can be obtained.

It is a perspective view of bookbinding system 10 concerning this embodiment. FIG. 2 is a diagram illustrating a configuration of a collating device 12. FIG. 2 is a diagram illustrating a configuration of an electronic control unit 148 provided in the bookbinding system 10. FIG. 2 is a schematic diagram showing an internal structure of the direction changing device 14 when viewed from an arrow F direction shown in FIG. 1. FIG. 3 is a top view of the direction changing device 14. FIG. 2 is a view of the crease mechanism 500 and the folding device 16 as viewed from the direction of arrow G shown in FIG. 1. FIG. 3 is a top view of the folding device 16. FIG. 7A is a cross-sectional view taken along the line EE in FIG. 6, and FIG. 7B is a cross-sectional view taken along the line FF in FIG. It is AA sectional drawing in FIG. It is BB sectional drawing in FIG. FIG. 6 is a top view showing shafts 601 and 701 above a transport surface W and members that are attached to the shafts 601 and 701 or that are related to the shafts 601 and 701. FIG. 3 is a top view showing shafts 602 and 702 below a conveyance surface W and members which are attached to the shafts 602 and 702 or related members are extracted. It is CC sectional drawing in FIG. It is DD sectional drawing in FIG. It is sectional drawing which cut | disconnected the shaft 601 which penetrates the inside of the hole 618g and the streakable upper roller 618 by the surface orthogonal to a shaft. FIG. 10 is a diagram illustrating a state after the first movement as viewed from the same position as in FIG. 9. FIG. 12 is a top view illustrating a position after the first movement of the same component as in FIG. 11. FIG. 17 is a diagram illustrating a state after performing a second movement as viewed from the same position as in FIGS. 9 and 16. FIG. 3 is a functional block diagram of an electronic control unit 148. FIG. 7 is a diagram illustrating an operation in which the transport direction of the fed sheet P is changed by 90 ° and sent out in the direction changing device 14. FIG. 7 is a diagram illustrating an operation in which the transport direction of the fed sheet P is changed by 90 ° and sent out in the direction changing device 14. FIG. 7 is a diagram illustrating an operation in which the transport direction of the fed sheet P is changed by 90 ° and sent out in the direction changing device 14. It is the figure which looked at the creasing mechanism 2500 concerning a 2nd embodiment from the Y direction downstream. FIG. 24 is a diagram illustrating a state after performing third and fourth movements from the state of FIG. 23, as viewed from the same position as in FIG. 23. It is the figure which looked at the creased roller unit 3503 which concerns on 3rd Embodiment from the Y direction downstream. FIG. 26 is a view showing the state after the movement from the state of FIG. 25 as viewed from the same position as in FIG. 25. FIG. 13 is a block diagram illustrating a sheet information input and a control system that controls motors 3520, 3526, 3617, and 3717 according to the input sheet information according to the third embodiment. It is a figure showing a paper thickness selection screen 30a. 9 is a flowchart illustrating a setting operation after selection input of thick paper and thin paper. It is a figure showing an example of a roller pair with a crease.

  Hereinafter, embodiments of the present invention (hereinafter, referred to as embodiments) will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of a bookbinding system 10 according to the first embodiment of the present invention. The bookbinding system 10 includes a collating device 12, a direction changing device 14, a folding device 16, a saddle stitching device 18, a fore edge cutting device 20, a top and bottom cutting device 22, a belt stacker 24, and an integrated control device 26.

  In the present embodiment, three collating devices 12 are provided. The collating apparatus 12 has a plurality of shelves each serving as a paper storage unit. The collating device 12 overlaps the sheets while feeding the sheets from each of the plurality of shelves. The three collating devices 12 are arranged in series, and the sheet bundle created by the collating device 12 arranged on the downstream side is superimposed on the sheet bundle created by the collating device 12 arranged on the upstream side. It has become possible. Hereinafter, each of the three collating devices 12 is referred to as a first collating device 12A, a second collating device 12B, and a third collating device 12C from the downstream side.

  The direction changing device 14 carries in the paper sent from the collating device 12, changes the carrying direction by 90 degrees, and carries out the paper to the folding device 16. The direction changing device 14 is provided with a crease mechanism (not shown in FIG. 1) for forming a crease at substantially the center in a direction orthogonal to the conveyance direction while conveying the sheet or the sheet bundle after the conveyance direction conversion. Details will be described later). Hereinafter, the direction in which the sheet is carried into the direction changing device 14 is referred to as a “loading direction”, and the direction in which the sheet is carried out from the direction changing device 14 is also referred to as a “unloading direction”.

  The folding device 16 folds the sheets stacked by the collating device 12. Specifically, the folding device 16 includes an inverted V-shaped guide plate having a top portion located above, a folding mechanism, and a pair of folding rollers. The folding mechanism conveys the paper or the sheet bundle on the guide plate such that the center in the direction orthogonal to the conveyance direction passes through the top portion, thereby preliminarily setting the approximate center in the direction orthogonal to the conveyance direction of the paper or the sheet bundle. The portion where the crease is provided is bent into an inverted V-shape. The pair of folding rollers are arranged so that their axes are oriented in the vertical direction and in the direction perpendicular to the transport direction around the top of the inverted V-shape of the guide plate, and the paper or the sheet bundle folded in the inverted V-shape is arranged. By transporting while sandwiching the approximate center of the direction orthogonal to the transport direction in the direction, the fold is folded so as to be parallel to the transport direction. Details of the guide plate, the folding mechanism, and the pair of folding rollers will be described later. When the sheets are stacked by the collating device 12 and the sheet bundle is conveyed, the folding device 16 folds the sheet bundle while maintaining the state in which the sheets are overlapped.

  The folding device 16 carries out a set of sheet bundles formed by folding and overlapping to the saddle stitching device 18. The saddle stitching device 18 stacks and stacks the sheets folded by the folding device 16 until a set of sheet bundles constituting one booklet to be bound. The saddle stitching device 18 performs a binding process of binding the created sheet bundle at a fold to create a saddle stitched booklet. Hereinafter, a saddle-stitched booklet is simply referred to as a “booklet”.

  The fore edge trimming device 20 trims the fore edge of the booklet carried in, and carries it out to the top and bottom edge trimming device 22. The top and bottom cutting device 22 cuts the top and bottom of the loaded booklet and carries it out to the belt stacker 24. The belt stacker 24 sequentially accumulates the created booklets. The configurations of the fore-edge cutting device 20, the top-side cutting device 22, and the belt stacker 24 are known, and a description thereof will be omitted.

  The integrated control device 26 has a PC (Personal Computer) 28, a display 30, and an input device 32. The PC 28 has a CPU that executes various arithmetic processes, a ROM that stores various control programs, and a RAM that is used as a work area for storing data and executing programs. The input device 32 includes a keyboard or a mouse. Note that a touch panel display may be employed as the display 30. In this case, the display 30 also functions as an input device.

  FIG. 2 is a diagram illustrating the configuration of the collating apparatus 12. Each of the collating devices 12 has a shelf 40, a paper feed mechanism 42, and a vertical transport mechanism 44. A plurality of shelves 40 are provided in one collating device 12. In the present embodiment, the number of shelves 40 is ten. The number of shelves 40 may be plural other than ten.

  The plurality of shelves 40 are arranged in a substantially horizontal state in a vertical direction. The shelves 40 may be inclined, and the direction in which the shelves 40 are arranged is not limited to the vertical direction. The paper feed mechanism 42 is provided corresponding to each of the plurality of shelves 40, and executes paper feeding for feeding out sheets one by one from the corresponding shelf 40. In the present embodiment, a so-called suction type paper feeding mechanism is used as the paper feeding mechanism 42, in which the uppermost paper is separated from lower papers and sent out using the suction force of air. Such a suction-type sheet feeding mechanism is well-known, and thus description thereof is omitted. The paper feeding mechanism 42 is not limited to a suction type paper feeding mechanism, but employs a so-called friction type paper feeding mechanism that separates and sends out the uppermost sheet from a lower sheet using a separation pad or a separation roller. May be done. The sheets sent out by the sheet feeding mechanism 42 are stacked while being conveyed vertically downward by the vertical conveyance mechanism 44.

  The collating device 12 has a horizontal transport mechanism 46. Relay transfer devices 34 are arranged between the first collating device 12A and the second collating device 12B and between the second collating device 12B and the third collating device 12C, respectively. The relay conveying device 34 has a conveying mechanism 47 and conveys the sheet bundle created by the upstream collating device 12 to the downstream collating device 12. Although a belt transport mechanism is employed as the transport mechanism 47, for example, a roller transport mechanism or the like may be employed. The sheet bundle transported from the upstream collating device 12 via the relay transport device 34 is transported inside the collating device 12 by the horizontal transport mechanism 46. The downstream end of the horizontal transport mechanism 46 joins the downstream end of the vertical transport mechanism 44. At this junction, the sheet bundle conveyed from the upstream side and the sheet bundle created by the collating device 12 are formed. The sheet bundle is overlaid.

  A relay conveying device 36 is provided downstream of the first collating device 12A. The relay conveyance device 36 has a conveyance mechanism 48, and conveys the sheet bundle conveyed from the first collating device 12A and conveys it to the direction change device 14. Although a belt transport mechanism is employed as the transport mechanism 48, for example, a roller transport mechanism or the like may be employed.

  FIG. 3 is a diagram illustrating a configuration of the electronic control unit 148 provided in the bookbinding system 10. The first collating device 12A, the second collating device 12B, the third collating device 12C, the direction changing device 14, the folding device 16, the saddle stitching device 18, the fore edge cutting device 20, and the top and bottom cutting device 22 included in the bookbinding system 10. The collation control unit 150A, the collation control unit 150B, the collation control unit 150C, the alignment control unit 152, the folding control unit 154, and the binding control unit are subsystem control units each configured by a subsystem control board. 156, a fore-edge cutting control unit 158, and a top and bottom cutting control unit 160 are provided. Each of these subsystem control units has a CPU, a RAM, and a ROM, and controls the operation of an actuator provided in a corresponding device.

  The PC 28 is connected to the interface box 162 via a USB (Universal Serial Bus). The interface box 162 and each subsystem control unit are connected via a LAN (Local Area Network) cable. The PC 28 transmits a start signal, a stop signal, and other adjustment signals for operating each device to each subsystem control unit. Each subsystem control unit outputs a control signal to an actuator of a corresponding device according to these received signals, and controls the operation thereof. The electronic control unit 148 includes the PC 28 and each of these subsystem control units.

  FIG. 4 is a schematic diagram showing the internal structure of the direction changing device 14 when viewed from the direction of arrow F shown in FIG. 1, and FIG. 5 is a diagram viewed from above. In FIG. 4, the direction of arrow X is the carry-in direction, and the carry-out direction is the direction toward the far side in FIG. In FIG. 5, the arrow X direction is the carry-in direction, and the arrow Y direction is the carry-out direction. Therefore, the sheet is carried in from the left side in FIG. 5, and is carried out upward by changing the carrying direction by 90 °. Hereinafter, the carry-in direction is also referred to as an X direction, and the carry-out direction is also referred to as a Y direction.

  The direction changing device 14 has frames 101 and 102 erected on both sides in a direction orthogonal to the X direction, and connects the frames 101 and 102 at an upstream end and a downstream end in the X direction. , Frames 103 and 104 are erected. The frames 101 to 104 are plate-like members that stand upright, and are arranged so as to surround members constituting the direction change device 14.

  Subframes 201 and 301 are juxtaposed in the X direction inside the frames 101 to 104. The sub-frames 201 and 301 are formed in a U-shape having side surfaces 201b, 201c, 301b and 301c which stand vertically on both sides in a direction orthogonal to the X direction from the horizontal bottom surfaces 201a and 301a (FIG. 4). , The frame 101 on the near side in the figure and the side surfaces 201b and 301b on the sub frame on the near side are not shown).

  Screw blocks 202 and 302 are fixed on the bottom surfaces 201a and 301a. Screw holes are formed in the screw blocks 202 and 302 in parallel with the X direction. The screw shaft 106 passes through the screw holes of the screw blocks 202 and 302. On the screw shaft 106, a first screw portion 106a screwed with the screw block 202 and a second screw portion 106b screwed with the screw block 302 are formed, and the directions of the screws are reversed. The screw shaft 106 can be driven to rotate in an arbitrary rotation direction by a motor 105 provided on the frame 104. Therefore, when the screw shaft 106 is driven to rotate in one direction by the motor 105, the frames 201 and 301 move horizontally in a direction approaching each other, and when the screw shaft 106 is driven to rotate in the other direction, they move horizontally in a direction away from each other.

  The sheet is carried in from the left side in FIGS. 4 and 5. The carry-in roller pair 49 is the most downstream roller pair in the transport mechanism 48 (see FIG. 2), and transports the sheet sent from the collating device 12 in the X direction. The sheet carried in by the carry-in roller pair 31 is sandwiched between the upper carry belt 51 and the lower carry belt 52 of the carry-in carry belt 50 and further carried in the X direction. The upper transport belt 51 is hung on pulleys 53 and 54 and extends from the paper entrance to the center of the frames 103 and 104.

  On the other hand, the lower transport belt 52 is hung around pulleys 55, 56, 57 and an idler 58, and is routed in an inverted L-shape. The shaft supporting the pulleys 53, 54, 55 and the idler 58 is rotatably supported by the frames 101, 102, and the shaft supporting the pulley 56 is rotatably supported by the sub-frame 201. Therefore, when the sub-frame 201 moves horizontally, the position of the pulley 56 also moves horizontally, so that the length of the lower conveyor belt 52 that contacts the upper conveyor belt 51 and sandwiches the paper changes.

  The shaft supporting the pulley 57 moves downward by the same amount when the pulley 56 moves horizontally to the left in the figure, and moves upward by the same amount when the pulley 56 moves horizontally to the right in the figure. It is rotatably supported by a member (not shown) that moves up and down in conjunction with the horizontal movement of 201. With this configuration, even if the pulley 56 moves horizontally, the tension of the lower transport belt 52 is kept constant. Four pulleys 53, 54, 55, 56, 57 are provided in parallel in the axial direction, and an upper transport belt 51 or a lower transport belt 52 is hung on each of them. One idler 58 is formed to be long in the axial direction, and four idler belts 52 are hung on one idler 58.

  Below the pulley 54, a belt 107 is stretched horizontally. The belt 107 is a belt formed wide in the Y direction. One end of the belt 107 is fixed to the frame 103, and the other end is fixed to the frame 104. The pulleys 203 and 204 are rotatably supported on the sub-frame 201 and the pulleys 303 and 304 are rotatably supported on the sub-frame 301.

  Specifically, the belt 107 extending horizontally from the frame 103 is turned upward by the pulley 203, horizontally by the pulley 204, downward by the pulley 304, and horizontally by the pulley 303 to reach the frame 104. The vicinity of the connection with the frames 103 and 104 is both horizontal, and a horizontal plane is formed at a higher position between the pulleys 204 and 304, and the upper surface thereof functions as a placement surface 107a on which the carry-in paper is placed. . When the frames 201 and 301 move away from each other, the dimension of the mounting surface 107a in the X direction increases. Conversely, when the frames 201 and 301 move in a direction approaching each other, the dimension of the mounting surface 107a in the X direction is reduced.

  On the upstream side in the X direction of the mounting surface 107a, a U-shaped bracket 205 having an upper opening is provided over the entire width between the side surfaces 201b and 201c. Inside the U-shape of the bracket 205, a toothed pulley 206 is rotatably supported at the Y-direction upstream end, and a toothed pulley 207 is rotatably supported at the Y-direction downstream end. A toothed belt 208 is hung between the toothed pulley 206 and the toothed pulley 207. A drive source (not shown) is connected to one of the toothed pulley 206 and the toothed pulley 207 to apply a rotational driving force, and the upper linear running portion of the toothed belt 208 rotates so as to move in the Y direction. It can be driven. The upper surface of the upper straight running portion of the toothed belt 208 has a height substantially equal to the height of the mounting surface 107a.

  The bracket 205 is bent outward on both outer sides of the toothed belt 208, and the upper surface of the bent portion has a guide surface 205 a on the upstream side in the X direction of the toothed belt 208 and a guide surface on the downstream side in the X direction of the toothed belt 206. 205b. The upper surfaces of both the guide surfaces 205a and 205b are inclined so that the downstream side in the X direction becomes higher.

  On the outer peripheral surface of the toothed belt 208, two claws 208a are provided upright. The claw 208a is provided at a position where the outer peripheral lengths of the toothed belt 208 between the one claw 208a and the other claw 208a are equal to each other. Therefore, when one claw 208a is located on the upper surface side of the upper straight traveling portion, the other claw 208a is located on the lower surface side of the lower straight traveling portion. When the toothed belt 208 rotates, the pawl 208a located on the upper surface side of the upper straight traveling portion moves in the Y direction, and pushes out the paper placed on the placement surface 107a.

  An alignment guide 209 is provided upstream of the guide surface 205a in the X direction. The alignment guide 209 has an alignment portion 209a above. The matching portion 209a has an L-shape having a horizontal portion and a vertical portion, and the downstream side of the horizontal portion in the X direction is bent obliquely downward. The upper surface side of the L-shaped horizontal portion is a mounting surface 209c on which the carry-in paper is mounted.

  A drive unit 209b is attached below the matching unit 209a. A rack gear is formed in the drive unit 209b in the horizontal direction, and meshes with a drive gear 210 below the rack gear. The driving gear 210 is provided with a rotational driving force from a driving source (not shown), and is driven to rotate in one direction and the other direction. By this mechanism, the rotational driving force of the gear 210 becomes a driving force for moving the alignment guide 209 in the horizontal direction, and the alignment guide 209 is moved to a standby position (a solid line position in FIG. 4) separated from the guide surface 205a by a predetermined distance. A reciprocating movement can be made between an alignment position (a position indicated by a dashed line in FIG. 4) which is close to the guide surface 205a.

  The bracket 305, the toothed pulleys 306 and 307, the toothed belt 308, the alignment guide 309, and the gear 310 provided on the downstream side of the mounting surface 107a are respectively a bracket 205, toothed pulleys 206 and 207, and a toothed belt 208. The alignment guide 209 and the gear 210 are provided symmetrically with respect to the mounting surface 107 a, and have a symmetrical shape and structure except for the bracket 305. The bracket 305 is bent outward on both outer sides of the toothed belt 308, and the upper surface of the bent portion is a guide surface 305 a on the downstream side in the X direction of the toothed belt 308 and a guide surface 305 a on the upstream side in the X direction of the toothed belt 306. The point that the surface 305b is formed is the same as that of the bracket 205, but the direction of inclination of the guide surface is not symmetrical, and the upper surfaces of both the guide surfaces 305a and 305b are inclined so that the downstream side in the X direction is higher.

  The sheet is fed between the upper and lower conveyor belts 51 and 52 of the carry-in conveyor belt 50 by the carry-in roller pair 49 from the left in FIGS. When the leading end of the sheet passes above the pulley 56, the sheet is released from the carry-in / transport belt 50. As a surface on which the fed sheet is placed, on the downstream side in the X direction of the pulley 56, a placing surface 209c, a guide surface 205a, an upper surface of a toothed belt 208, a guide surface 205b, a placing surface 107a, a guide surface 305b, and a toothed surface. The respective surfaces are successively arranged in the X direction in the order of the upper surface of the belt 308, the guide surface 305a, and the placing surface 309c, and form a placing surface Z on which sheets are placed as a whole.

  More specifically, the mounting surface Z is configured as follows. The end of the guide surface 205a on the upstream side in the X direction is substantially the same height as the mounting surface 209c of the alignment guide 209, and the end on the downstream side in the X direction is higher than the upper surface of the toothed belt 208. The end of the guide surface 205b on the upstream side in the X direction is lower than the upper surface of the toothed belt 208, and the end on the downstream side in the X direction is higher than the mounting surface 107a. The end of the guide surface 305b on the upstream side in the X direction is lower than the mounting surface 107a, and the end on the downstream side in the X direction is higher than the upper surface of the toothed belt 308. The end of the guide surface 305a on the upstream side in the X direction is lower than the upper surface of the toothed belt 308, and the end on the downstream side in the X direction is higher than the mounting surface 309c of the alignment guide 309.

  The claws 208a, 308a located on the upper running portions of the toothed belts 208, 308 protrude upward with respect to the mounting surface Z. The height of the paper conveyance line by the carry-in conveyance belt 50 is higher than the mounting surface Z and higher than the claws 208a and 308a protruding above the mounting surface Z. Therefore, when the leading end of the sheet passes above the pulley 56, the leading end of the sheet jumps over the alignment guide 209, the bracket 205, and the claw 208a and lands on the mounting surface 107a. At this point, the portion of the sheet near the upstream in the X direction receives the conveyance force of the carry-in conveyance belt 50, so that the sheet is conveyed as it is in the X direction, and the leading end contacts the vertical portion of the alignment guide 309 and stops. At this time, the claw 308a is retracted at least before the leading edge of the carry-in paper arrives outside the passing range of the carried-in paper so that the leading end of the paper and the claw 308a do not interfere with the leading end of the paper. In this way, the sheet is placed on the placing surface Z.

  The alignment guides 209 and 309 determine the positions of the front and rear ends of the sheets placed on the placement surface Z in the X direction. When the paper is loaded and loaded, the alignment guides 209 and 309 are at the standby position. At the time of positioning, the gears 210 and 310 are driven, and the alignment guides 209 and 309 are moved in directions approaching each other to set the alignment positions. If necessary, the return to the standby position and the movement to the matching position are repeated a predetermined number of times. When the alignment guides 209 and 309 are both moved to the alignment position, the motor 105 preliminarily sets a screw according to the X-direction length of the paper so that the distance between the surfaces of the vertical portions is equal to the X-direction length of the paper. The shaft 106 is driven to rotate, and the positions of the frame 201 and the frame 301 are determined.

  After the positioning, when the alignment guides 209 and 309 are in the alignment position and start to circulate around the toothed belts 208 and 308, the pawls 208a and 308a that are waiting on the upstream side in the Y direction of the sheet to be positioned in advance move in the Y direction. As it travels, the paper on the mounting surface Z is pushed out in the Y direction. An opening (not shown) is formed in the frame 102 so that the sheet extruded from the mounting surface Z can pass through, and the sheet is sent to the downstream side of the frame 102 in the Y direction through this opening. It is.

  On the downstream side of the frame 102 in the Y direction, a creasing mechanism 500 and a folding mechanism 400 are sequentially connected. One or a plurality of stacked sheets sent out from the mounting surface Z in the Y direction pass through the creasing mechanism 500 and the folding mechanism 400 while being conveyed in the Y direction as they are, and thereby the sheet unloading direction (Y direction). The folding line is provided in a direction parallel to ()), and is bent along the folding line. Hereinafter, the transport direction of the sheet P in the crease mechanism 500 and the folding mechanism 400 is also referred to as “Y direction”.

  FIG. 6 is a diagram of the creasing mechanism 500 and the folding device 16 connected to the downstream side in the Y direction as viewed from the direction of arrow G shown in FIG. The details of the creasing mechanism 500 will be described later.

  FIG. 7 is a top view of the folding device 16. The folding mechanism 400 will be described with reference to FIGS. The folding device 16 is provided with a folding mechanism 400. In the folding mechanism 400, a lower round belt 401 is provided below the sheet conveyance path, and an upper round belt 402 is provided above. The lower round belt 401 is hung on pulleys 404 and 405, and is provided so that the upper pair runs in the Y direction at the same position as the pair of creased rollers 71 and 81 in a direction orthogonal to the Y direction. A plurality of intermediate pulleys 406 are arranged between the pulleys 404 and 405 so as to be vertically sandwiched by the lower round belt 401. A groove for guiding the lower round belt 401 is formed on the outer peripheral surface of the intermediate pulley 406, and guides the lower round belt 401 so as to prevent deflection.

  The upper round belt 402 is provided so that a total of two upper round belts run, one on each side of the lower round belt 401. The upper round belt 402 is hung between a pulley 407 on the upstream side in the Y direction which is orthogonal to the Y direction and supported on a horizontal axis and a pulley 408 on the downstream side in the Y direction which is supported on a vertical axis. I have. In the upper round belt 402, a portion connecting the lower side of the pulley 407 and the inside of the pulley 408 runs in the Y direction. From the outside of the pulley 408, the path is bent by the pulley 409 and returned to the upper side of the pulley 407.

  8A is a sectional view taken along line EE in FIG. 6, and FIG. 8B is a sectional view taken along line FF in FIG. In FIG. 8A, the upper end of the Y-direction running portion of the lower round belt 401 and the lower end of the Y-direction running portion of the upper round belt 402 substantially coincide with each other in the height direction. The height position of the upper round belt 402 is lowered with respect to the lower round belt 401, and the heights are almost the same in FIG. 8B. Accordingly, while the sheet P is conveyed between the lower round belt 401 and the upper round belt 402, the lower surface of the creased portion of the sheet P is supported by the lower round belt 401, while both sides thereof are The left and right portions are gradually pressed down by the upper round belt 402 and lowered, so that they are bent at the folding line L1.

  The relative position of the crease mechanism 500 and the folding mechanism 400 in a direction orthogonal to the Y direction (hereinafter, also referred to as “width direction”) so that the crease imparted by the crease mechanism 500 matches this folding line L1. Is decided. Therefore, the sheet P is folded at the folding line position given in advance by the creasing mechanism 500 in the folding mechanism 400. The lower round belt 402 is guided upward by the rollers 410 and 411 so that the sheet P can be more reliably folded. Thereafter, the top of the bending line is supported by the disk 412 from below, is completely bent by the pair of folding rollers 413, and is sent to the saddle stitching device 18. Below this folding mechanism 400, guide plates 416 are provided on both sides so as to spread in an inverted V-shape. The folded sheet P is transported along the guide plate 416.

  Next, details of the creasing mechanism 500 will be described. The crease mechanism 500 has frames 501 and 502 erected on both sides in the width direction. In FIG. 6, a frame 501 stands on the front end and a frame 502 stands on the rear end. In FIG. 6, when members having substantially the same shape are arranged at the back end, parenthesized numbers are assigned to the back members.

  A roller unit 503 with a crease is arranged between the frames 501 and 502. The creased roller unit 503 has subframes 504 and 505 on both sides in the width direction.

  In the frames 501 and 502, openings 501a and 502a slightly larger than the sub-frames 504 and 505 are formed at the same position in the Y direction as the sub-frames 504 and 505.

  In the creased roller unit 503, shafts 601 and 602 vertically opposed to each other with the conveyance surface W of the paper P interposed therebetween are connected to the upstream side in the Y direction, and the shafts 701 and 702 are connected to the downstream side in the Y direction.

  FIG. 9 is a view of the creased roller unit 503 viewed from the downstream side in the Y direction in the sectional view taken along the line AA in FIG. FIG. 10 is a sectional view taken along the line BB in FIG. 11 is a top view showing the shafts 601 and 701 above the transport surface W and the members attached to or related to the shafts 601 and 701, and FIG. 12 is a shaft below the transport surface W. It is a top view which extracts and shows the member attached to 602,702 and this shaft 602,702, or related. Hereinafter, with reference to FIGS. 6, 9, 10, 11, and 12, the structure of the creased roller unit 503 will be described in detail.

  In FIG. 9, the interval between the sub-frames 504 and 505 is the same as the interval between the frames 501 and 502, but the sub-frames 504 and 505 are on the left side of the frames 501 and 502 in the Y direction (the right side in FIG. 9). At a position shifted by a distance D1. The sub-frames 504 and 505 are bent outward at the lower ends in the width direction, and the bent portions are placed on the sub-gantry 506. The sub gantry 506 is fixed to the frames 501 and 502.

  The shafts 602, 702 are rotatably supported by the sub-frames 504, 505. A total of four transport rollers 603 are fixedly supported on the shaft 602, two at a time from the center in the width direction to the left and right. Similarly, on the shaft 702, a total of four transport rollers 703 are fixedly supported, two at a time from the center in the width direction to the left and right. The transport roller 703 is arranged at the same position as the transport roller 603 in the width direction.

  The fulcrum shafts 604, 704 are shafts having both ends fixed to the sub-frames 504, 505 and spanned in the width direction. A lever 605 is rotatably supported near the sub-frame 504 of the fulcrum shaft 604, and a lever 606 is rotatably supported near the sub-frame 505. The levers 605 and 606 rotatably support the shaft 601 at their lower ends. Further, springs 609 and 610 are respectively hung between the levers 605 and 606 and the pins 607 and 608 erected on the subframes 504 and 505 on the upper end side. Therefore, the levers 605 and 606 are urged about the fulcrum shaft 604 in a direction that rotates counterclockwise in FIG.

  On the shaft 601 supported by the levers 605 and 606, four transport rollers 611 are fixedly supported, two by two from the center in the width direction. The transport roller 611 is arranged at the same position as the transport roller 603 in the width direction. That is, the conveying roller 611 is pressed against the conveying roller 603 by the urging force of the springs 609 and 610.

  Similarly, a lever 705 is rotatably supported near the sub-frame 504 of the fulcrum shaft 704, and a lever 706 is rotatably supported near the sub-frame 505. The levers 705 and 706 rotatably support the shaft 701 at their lower ends. Further, springs 709 and 710 are respectively hooked between the levers 705 and 706 and the pins 707 and 708 erected on the subframes 504 and 505 on the upper end side. Therefore, the levers 705 and 706 are urged about the fulcrum shaft 704 in a direction that rotates counterclockwise in FIG. On the shaft 701 supported by the levers 705 and 706, four transport rollers 711 are fixedly supported, two by two from the center in the width direction, two to the left and right. The transport roller 711 is arranged at the same position as the transport roller 703 in the width direction. That is, the transport roller 711 is pressed against the transport roller 703 by the urging force of the springs 709 and 710.

  The shafts 601, 602, 701, and 702 are all supplied with rotational driving force from a drive source by a drive transmission mechanism, and are rotationally driven to rotate at the same rotational speed in the direction of the arrow in FIG. The drive transmission mechanism and the drive source are not shown.

  Near the upper end between the sub-frames 504 and 505, two stays 507 and 508 are provided on the sub-frames 504 and 505 with both ends fixed at intervals in the Y direction. A substantially U-shaped support member 509 with its lower side open is fixed by screws 510 and 511 at substantially the center of the stays 507 and 508 in the width direction.

  Below the support member 509, the lever 612 is rotatably supported by the fulcrum shaft 604, and similarly, the lever 712 is rotatably supported by the fulcrum shaft 704 adjacent to the downstream side in the Y direction. The lower end of the support member 509 on the open side of the U-shape extends to the vicinity of the fulcrum shafts 604, 704, and is provided inside the U-shape near the lower end so as to surround the fulcrum shafts 604, 704. Shaped spacers 627, 727 are fixed. A total of two spacers 627 are provided, one on each side in the width direction of the lever 612, and a total of two spacers 727 are provided, one each on both sides in the width direction of the lever 712, and the levers 612, 712 and the support member 509 are provided. Are arranged so as to fill the gap between them, so that the positions of the levers 612 and 712 in the width direction with respect to the support member 509 are determined.

  A spring 614 is hung between the upper end of the lever 612 and a pin 613 fixed to the support member 509, and urges the lever 612 in a direction to rotate counterclockwise in FIG. On the other hand, the outer peripheral surface of the eccentric roller 615 is in contact with the upper surface of the upper part of the lever 612. The eccentric roller 615 is supported eccentrically with respect to the shaft 616, and the shaft 616 can be manually rotated by a knob 617. That is, the eccentric roller 615 is rotated by manually rotating the knob 617, so that the angle of the lever 612 can be adjusted.

  Similarly, a spring 714 is hooked between the upper end of the lever 712 and a pin 713 fixed to the support member 509, and urges the lever 712 in a direction to rotate counterclockwise in FIG. On the other hand, the outer peripheral surface of the eccentric roller 715 is in contact with the upper surface of the upper part of the lever 712. The eccentric roller 715 is eccentrically supported with respect to a shaft 716, and the shaft 716 can be manually rotated by a knob 717. That is, by manually rotating the knob 717, the eccentric roller 715 rotates, so that the angle of the lever 712 can be adjusted.

  Each of the levers 612 and 712 has a U-shape in which two plate-shaped members are connected at the upper side, and the eccentric rollers 615 and 715 are in contact with the upper connected part. The upper rollers 618 and 718 are rotatably supported so as to be sandwiched between two plate-like members constituting the lower ends of the levers 612 and 712.

  Lower rollers 619 and 719 are provided below and opposite to the upper rollers 618 and 718 with the transport surface W interposed therebetween. The lower rollers 619 and 719 are rotatably supported by support plates 620 and 720 erected substantially at the center in the width direction of a support table 514 provided below the shafts 602 and 702. . The support base 514 is provided fixed to the sub-frames 504 and 505. That is, the positions of the creased lower rollers 619 and 719 are fixed, and the distance between the creased upper rollers 618 and 718 and the creased lower rollers 619 and 719 can be adjusted by the knobs 617 and 717.

  FIG. 13 is a sectional view taken along the line CC in FIG. As shown in FIG. 13, a concave groove 618b is formed in the circumferential direction on the outer peripheral surface 618a of the creased upper roller 618. The bottom surface of the concave groove 618b has a smaller diameter than the outer peripheral surface 618a. On both sides of the concave groove 618b, an edge portion 618c having a larger diameter than the outer peripheral surface 618a is formed. Further, a ridge 618d is formed at a predetermined interval in the width direction (axial direction) with respect to the concave groove 618b (the upper roller 618, the lower roller 619, the upper roller 718, and the stripe). Since the axial direction of the attached row 719 is arranged in parallel with the width direction, the “width direction” in the description of the shape, the moving direction, and the like of these rollers is the axial direction. .

  Similarly, a concave groove 619b is formed in the circumferential direction on the outer peripheral surface 619a of the creased lower roller 619. The bottom surface of the concave groove 619b is smaller in diameter than the outer peripheral surface 618a. On both sides of the concave groove 619b, an edge 619c having a larger diameter than the outer peripheral surface 619a is formed. Also, a ridge 619d is formed at a predetermined interval in the width direction with respect to the concave groove 619b.

  In FIG. 13, both the creased upper roller 618 and the creased lower roller 619 have a ridge on the left side and a groove on the right side, and the arrangement order of the ridges and grooves in the width direction is the same.

  The protruding ridge 619d of the creased lower roller 619 and the concave groove 618b of the creased upper roller 618 face each other so that their center positions in the width direction coincide with each other, and a part of the protruding ridge 619d on the distal end side is formed as a concave groove 618b. It is arranged so as to fit into. When the sheet P passes between the creased upper roller 618 and the creased lower roller 619, the ridge 619d is bent along the crease line L2 at the central position in the width direction of the concave groove 618b. Is formed. Furthermore, by pressing both sides of the line L2 with a crease against the outer peripheral surface 619a of the lower roller 619 with the crease by the edge portion 618c having a diameter larger than that of the outer peripheral surface 618a, both sides of the crease of the sheet are provided. Since the flatness of the side is maintained, more stable creasing is possible.

  With respect to the width direction position where the concave groove 618b and the convex line 619d face each other, the convex line 618d and the concave groove 619b are arranged on different sides in the width direction. The distance D2 between the center position in the width direction of the groove 618b and the center position in the width direction of the ridge 618d is the distance D3 between the center position in the width direction of the groove 618b and the right end of the outer peripheral surface 618a in FIG. It is formed larger than the interval D4 between the center position in the width direction and the left end of the outer peripheral surface 618a in FIG. Similarly, the distance D5 between the widthwise center position of the groove 619b and the widthwise center position of the protruding ridge 619d is the distance D6 between the widthwise center position of the groove 619b and the right end of the outer peripheral surface 619a in FIG. The gap D7 is formed to be larger than the interval D7 between the center position in the width direction of the ridge 619d and the left end of the outer peripheral surface 618a in FIG.

  Therefore, the concave groove 619b is located at a position not overlapping the outer peripheral surface 618a in the width direction, and similarly, the ridge 618d is located at a position not overlapping the outer peripheral surface 619a in the width direction. There is no trace left by Article 618d. Further, the interval D2 is equal to the interval D5, and is also equal to D1, which is the amount of shift in the width direction between the sub-frames 504 and 505 and the frames 501 and 502.

  The creased upper roller 618 includes a first boss portion 618e and a second boss portion 618f which are smaller in diameter than the outer peripheral surface 618a, the concave portion 618b, and the ridge 618d, and protrude in opposite directions in the width direction. The outer periphery of the first boss 618e and the second boss 618f is fitted into the inner periphery of the bearing 621. The outer periphery of the bearing 621 is fitted into the lever 621. With this configuration, two plate-shaped portions on the U-shaped open side of the lever 621 rotatably support the first boss portion 618e and the second boss portion 618f via the bearing 621, respectively.

  Similarly, the creased lower roller 619 has a first boss portion 619e and a second boss portion 619f that are smaller in diameter than the outer peripheral surface 619a, the concave portion 619b, and the protruding ridge 619d and protrude in opposite directions in the width direction. The outer periphery of the first boss 619e and the second boss 619f is fitted to the inner periphery of the bearing 622. The outer periphery of the bearing 622 is fitted into the support plate 620. With this configuration, the two support plates 620 rotatably support the first boss 619e and the second boss 619f via the bearings 622, respectively.

  FIG. 14 is a sectional view taken along line DD in FIG. As shown in FIG. 14, a concave groove 718b is formed on the outer peripheral surface 718a of the creased upper roller 718 in the circumferential direction. The bottom surface of the concave groove 718b has a smaller diameter than the outer peripheral surface 718a. On both sides of the concave groove 718b, an edge portion 718c having a larger diameter than the outer peripheral surface 718a is formed. A ridge 718d is formed at a predetermined interval in the width direction with respect to the concave groove 718b.

  Similarly, a concave groove 719b is formed in the outer circumferential surface 719a of the creased lower roller 719 in the circumferential direction. The bottom surface of the concave groove 719b is smaller in diameter than the outer peripheral surface 718a. On both sides of the concave groove 719b, an edge portion 719c having a larger diameter than the outer peripheral surface 719a is formed. A ridge 719d is formed at a predetermined interval in the width direction with respect to the concave groove 719b.

  In FIG. 14, both the creased upper roller 718 and the creased lower roller 719 have a ridge on the left side and a groove on the right side, and the arrangement order of the ridges and grooves in the width direction is the same.

  The ridge 719d of the creased lower roller 719 and the concave groove 718b of the creased upper roller 718 face each other so that their center positions in the width direction coincide with each other, and a part of the distal end side of the ridge 719d is a concave groove 718b. It is arranged so as to fit into. When the sheet P passes between the creased upper roller 718 and the creased lower roller 719, the ridge 719d is bent along the crease line L2 at the center position in the width direction of the concave groove 718b. Is formed. Furthermore, both sides of the line L2 with a crease are pressed against the outer surface 719a of the lower roller 719 with a crease by the edge portion 718c having a larger diameter than the outer peripheral surface 718a. Since the flatness of the side is maintained, more stable creasing is possible.

  With respect to the width direction position where the concave groove 718b and the convex line 719d face each other, the convex line 718d and the concave groove 719b are respectively arranged on different sides in the width direction. The distance D8 between the widthwise center position of the groove 718b and the widthwise center position of the protrusion 718d is the distance D9 between the widthwise center position of the groove 718b and the right end of the outer peripheral surface 718a in FIG. The distance D10 is larger than the distance D10 between the center position in the width direction and the left end of the outer peripheral surface 718a in FIG. Similarly, an interval D11 between the center position in the width direction of the groove 719b and the center position in the width direction of the protrusion 719d is an interval D12 between the center position in the width direction of the groove 719b and the right end of the outer peripheral surface 719a in FIG. It is formed larger than the interval D13 between the widthwise center position of the ridge 719d and the left end of the outer peripheral surface 718a in FIG.

  Therefore, the concave groove 719b is located at a position not overlapping with the outer peripheral surface 718a in the width direction, and similarly, the ridge 718d is located at a position not overlapping with the outer peripheral surface 719a in the width direction. There is no trace of 718d. Further, the interval D11 is equal to the interval D8, and is also equal to D1, which is the amount of displacement in the width direction between the sub-frames 504 and 505 and the frames 501 and 502. That is, D1, D2, D5, D8, and D11 are all equal.

  The creased upper roller 718 includes a first boss portion 718e and a second boss portion 718f which are smaller in diameter than the outer peripheral surface 718a, the concave portion 718b, and the protruding ridge 718d, and protrude in opposite directions in the width direction. The first boss portion 718e and the second boss portion 718f have their outer periphery fitted into the inner periphery of the bearing 721. The outer periphery of the bearing 721 is fitted into the lever 721. With this configuration, the two plate-shaped portions of the lever 721 on the U-shaped open side rotatably support the first boss portion 718e and the second boss portion 718f via the bearings 721, respectively.

  Similarly, the creased lower roller 719 includes a first boss portion 719e and a second boss portion 719f which are smaller in diameter than the outer peripheral surface 719a, the concave portion 719b, and the protruding ridge 719d, and protrude in opposite directions in the width direction. The outer periphery of each of the first boss portion 719 e and the second boss portion 719 f is fitted into the inner periphery of the bearing 722. The outer circumference of the bearing 722 is fitted into the support plate 720. With this configuration, the two support plates 720 rotatably support the first boss portion 719e and the second boss portion 719f via the bearings 722, respectively.

  As shown in FIGS. 13 and 14, the concave groove 618b, the edge 618c, and the ridge 618d are formed in the same shape as the concave groove 619b, the edge 619c, and the ridge 619d, respectively. Therefore, the width D14 of the groove 618b and the width D16 of the groove 619b are equal, and the width D15 of the root of the protrusion 618d is equal to the width D17 of the root of the protrusion 619d. Similarly, the concave groove 718b, the edge 718c, and the ridge 718d are formed in the same shape as the concave groove 719b, the edge 719c, and the ridge 719d, respectively. Therefore, the width D18 of the groove 718b is equal to the width D20 of the groove 719b, and the width D19 of the root of the protrusion 718d is equal to the width D21 of the root of the protrusion 719d.

  The width D18 of the groove 718b and the width D20 of the groove 719b are formed smaller than the width D14 of the groove 618b and the width D16 of the groove 619b. Also, the width D19 of the root of the protruding ridge 718d and the width D21 of the root of the protruding ridge 719d are formed to be smaller than the width D15 of the root of the protruding 618d and the width D17 of the root of the protruding ridge 619d. That is, the upper creased roller 718 and the lower creased roller 719 on the downstream side in the Y direction have a greater width of the concave groove and the more ridges than the upper creased roller 618 and the lower creased roller 619 on the upstream side in the Y direction. Are formed to be small.

  Then, as shown in FIGS. 11 and 12, the creased line by the creased upper roller 618 and the creased lower roller 619 and the creased line by the creased upper roller 718 and the creased lower roller 719 have creases at the same position in the width direction. The line L2 is configured so that the crease line L2 coincides with the folding line L1. Accordingly, the upper creased lower roller 718 and the creased lower roller 719 on the downstream side have a larger force than the upstream creased upper roller 618 and the creased lower roller 619 for deforming the sheet P during creasing. Join. In this way, by increasing the deformation force on the sheet P in a stepwise manner on the same crease line L2, the folding line is accurately formed without shifting or bending in the width direction. .

  In this embodiment, the depths of the grooves 618b, 619b and the grooves 718b, 719b are the same, and the heights of the protrusions 618d, 619d and the protrusions 718d, 719d are the same, but the grooves 718b , 719b may be formed deeper than the recessed grooves 618b, 619b, and the ridges 718d, 719d may be formed higher than the ridges 618d, 619d. Also according to these modes, it is possible to perform the creasing so that the deformation of the sheet P increases stepwise from the upstream side.

  In FIG. 13, the creased upper roller 618 has a hole 618g penetrating in the width direction including the first boss portion 618e and the second boss portion 618f. The hole 618g has a larger diameter than the shaft 601 and the shaft 601 is inserted inside the hole 618g with a predetermined gap. Similarly, the creased lower roller 619 has a hole 619g penetrating in the width direction including the first boss portion 619e and the second boss portion 619f. The hole 619g has a larger diameter than the shaft 602, and the shaft 602 is inserted inside the hole 619g with a predetermined gap.

  In FIG. 14, the creased upper roller 718 has a hole 718g penetrating in the width direction including the first boss portion 718e and the second boss portion 718f. The hole 718g has a larger diameter than the shaft 701, and the shaft 701 is inserted inside the hole 718g with a predetermined gap. Similarly, the creased lower roller 719 has a hole 719g penetrating in the width direction including the first boss portion 719e and the second boss portion 719f. The hole 719g has a larger diameter than the shaft 702, and the shaft 702 is inserted inside the hole 719g with a predetermined gap.

  FIG. 15 is a cross-sectional view of the upper roller with creasing 618 and the shaft 601 penetrating the inside of the hole 618g, taken along a plane perpendicular to the shaft. As shown in FIG. 15, the center of the creased upper roller 618 is arranged at a distance D22 downstream of the center of the shaft 601 in the Y direction. Similarly, the center of the creased roller 619 and the shaft 602, the center of the creased roller 719 and the shaft 702, and the center of the creased roller are located on the downstream side in the Y direction with respect to the center of the shaft by a distance D22. It is out of alignment.

  The transport rollers 603, 611, 703, 711 are supported so that their centers are the same as the axes 601, 602, 701, 702, respectively. With this configuration, the leading end of the sheet is held by the transport rollers 603 and 611 supported by the shafts 601 and 602 earlier than the upper end of the sheet comes into contact with the upper roller 618 and the lower roller 619. Similarly, the leading edge of the sheet is held by the transport rollers 703 and 711 supported by the shafts 701 and 702 earlier than the upper edge of the sheet comes into contact with the upper roller 718 and the lower roller 719. Since the creasing is started after the paper is held by the transport rollers, the creasing is performed while traveling straight without skew.

  As shown in FIG. 13, a pulley groove 618h is formed on the outer periphery of the first boss portion 618e of the creased upper roller 618 near the left end in FIG. Further, as shown in FIG. 14, a pulley 723 is provided adjacent to the creased upper roller 718 in the width direction. The pulley 723 is fixedly supported on the shaft 701 and is driven to rotate together with the shaft 701. On the outer periphery of the pulley 723, a pulley groove 723a that is wide in the width direction is formed. Then, as shown in FIG. 11, a round belt 624 is hung between the pulley groove 723a and the pulley groove 618h. Therefore, the rotational driving force of the shaft 701 is transmitted to the creasing upper roller 618 by the round belt 624.

  Further, as shown in FIG. 14, a pulley groove 718h is formed on the outer periphery of the first boss portion 718e of the creased upper roller 718 near the right end in FIG. As shown in FIG. 13, a pulley 623 is provided adjacent to the creased upper roller 618 in the width direction. The pulley 623 is fixedly supported on the shaft 601 and is driven to rotate together with the shaft 601. On the outer periphery of the pulley 623, a pulley groove 623a wide in the width direction is formed. Then, as shown in FIG. 11, a round belt 724 is hung between the pulley groove 623a and the pulley groove 718h. Therefore, the rotational driving force of the shaft 601 is transmitted to the creased upper roller 718 by the round belt 724.

  Further, as shown in FIG. 13, a pulley groove 619h is formed on the outer periphery of the first boss portion 619e of the creased lower roller 619 near the left end in FIG. As shown in FIG. 14, a pulley 725 is provided adjacent to the creased lower roller 719 in the width direction. The pulley 725 is fixedly supported on the shaft 702 and is driven to rotate together with the shaft 702. A pulley groove 725a is formed on the outer periphery of the pulley 725. Then, as shown in FIG. 12, a round belt 626 is hung between the pulley groove 725a and the pulley groove 619h. Therefore, the rotational driving force of the shaft 702 is transmitted to the creasing lower roller 619 by the round belt 626.

  Further, as shown in FIG. 14, a pulley groove 719h is formed on the outer periphery of the first boss portion 719e of the creased lower roller 719 near the right end in FIG. Further, as shown in FIG. 13, a pulley 625 is provided adjacent to the creased lower roller 619 in the width direction. The pulley 625 is fixedly supported on the shaft 602, and is driven to rotate together with the shaft 602. A pulley groove 625a wide in the width direction is formed on the outer periphery of the pulley 625. Then, as shown in FIG. 12, a round belt 726 is hung between the pulley groove 625a and the pulley groove 719h. Therefore, the rotational driving force of the shaft 602 is transmitted to the creasing lower roller 719 by the round belt 726.

  The creased roller unit 503 includes the creased upper rollers 618 and 718 at a portion where the creased upper roller 618 and the creased lower roller 619 face each other and at a portion where the creased upper roller 718 and the creased lower roller 719 face each other. The moving mechanism has a moving mechanism in which a ridge and a groove facing each other can be switched up and down by moving in the width direction. Hereinafter, this movement is referred to as a first movement, and a mechanism for performing the first movement will be described as a first moving mechanism.

  FIG. 16 is a view of the state after the first movement as viewed from the same position as in FIG. 9, and FIG. 17 is a top view illustrating the same position of the same component as in FIG. 11 after the first movement. 9, the support member 509 is fixed to the stay 508 by screwing the screw 511 into the screw hole 508a, but in FIG. 16, the screw 511 is formed in the screw hole 508a in the width direction by a distance D23. The support member 509 is fixed to the stay 508 by screwing with the stay 508. Therefore, in FIG. 16, the positions of the support member 509 and each member attached to the support member 509 are shifted to the right side in the figure by a distance D23 as compared with FIG. 9.

  The screw hole 508b is located at the same position as the screw hole 508a in the Y direction, and is provided at a distance D23 from the screw hole 508a in the width direction to the right side in FIG. 9. This distance D23 is equal to twice the shift amount D1 between the sub-frames 504 and 505 and the frames 501 and 502 in the width direction. Further, the distance D2 between the concave groove 618b and the convex line 618d, the distance D5 between the concave groove 619b and the convex line 619d, the distance D8 between the concave groove 718b and the convex line 718d, and the distance D11 between the concave groove 719b and the convex line 719d. Equal to twice.

  Similarly, a screw hole 507a into which the screw 510 is screwed is formed in the stay 507 (see FIG. 6). A screw hole 507b is formed at a position apart from the screw hole 507a in the width direction by a distance D23 (not shown). The screw hole 507b has the same position in the width direction as the screw hole 508b.

  In the first movement, the support member 509 is moved from the position shown in FIG. 9 to the position shown in FIG. In the procedure, first, the knobs 617 and 717 are turned so that the large-diameter portions of the eccentric rollers 615 and 715 come into contact with the levers 612 and 712. That is, the creased upper rollers 618, 718 are separated from the creased lower rollers 619, 719. Next, the screws 510 and 511 are removed from the screw holes 507a and 508a, the support member 509 is slid to the right in the drawing, the screw holes of the support member 509 are aligned with the screw holes 507b and 508b of the stays 507 and 508, and the screw 510 is re-inserted. And 511 are inserted and screwed and fixed. Since the screw hole provided in the support member 509 has at least the maximum dimension in the width direction thereof substantially the same as that of the screws 510 and 511, the position of the support member 509 in the width direction is determined by fixing the screws 510 and 511. . Therefore, the screw hole of the support member 509 is moved to the position of the screw holes 507b and 508b separated from the position of the screw holes 507a and 508a by the distance D23 by this sliding movement. Will only move.

  Then, since the spacers 627 and 727 attached to the support member 509 also move by the same distance in the same direction, the levers 612 and 712 sandwiched by the spacers 627 and 727 also move by the same distance in the same direction. The moving distance D23 is twice the interval D2, D8, D5, D11 between the ridges and grooves adjacent to each other in the width direction of the creased rollers 618, 718 and the creased lower rollers 619, 719. As a result, from the position where the concave groove 618b and the convex line 619d and the concave groove 718b and the convex line 719d face each other, the position becomes the position where the convex line 618d and the concave groove 619b and the convex line 718d and the concave groove 719b are opposite.

  Therefore, in the portion where the upper creased roller 618 and the lower creased roller 619 face each other, the ridges and the concave grooves opposing each other are switched up and down by the sliding movement of the creased upper roller 618 in the width direction. . Similarly, in the portion where the upper creased roller 718 and the lower creased roller 719 face each other, the upper and lower creased rollers 718 slide in the width direction, so that the opposed ridges and concave grooves are switched up and down. Become. After the slide movement, the knobs 617 and 717 are turned again to adjust the upper scoring rollers 618 and 718 and the lower scoring rollers 619 and 719 to positions suitable for scoring the sheet. Thus, the first movement is completed.

  Since the shafts 601 and 701 penetrate inside the holes 618g and 718g of the creased upper rollers 618 and 718, respectively, the positions of the shafts 601 and 701 remain unchanged and the movement of the creased upper rollers 618 and 718 is performed. It can be performed. Therefore, during this movement, the positions of the transport rollers 611, 711 and the pulleys 623, 723 supported by the shafts 601 and 701 remain unchanged. However, as shown in FIG. 17, the round belts 724, 624 hanging on the pulleys 623, 723 move from one end to the other end in the width direction of the pulley grooves 623a, 723a (from the left end to the right end in FIG. 17). I do. The pulley grooves 623a and 723a are formed to have such a width as to be able to move, that is, to allow the hanging round belts 724 and 624 to move by the distance D23.

  By the way, due to the first movement, the line L2 moves to the right side shown in FIGS. 9 and 16, and is shifted from the folding line L1. Therefore, it is necessary to perform the second movement for aligning the crease line L2 with the folding line L1. FIG. 18 is a view showing the state after the second movement is viewed from the same position as in FIGS. Hereinafter, the second movement will be described.

  In FIG. 9, an angle member 528 is attached to the upper surface of the right end of the stay 508 with a screw 513. The angle member 528 is an inverted L-shaped plate member, and a portion rising above the angle member 528 is fixed to the frame 501. As shown in FIG. 6, the angle member 528 is formed to be long in the Y direction over the stay 508 and the stay 507, and is also screwed to the stay 507 by a screw 512 similarly to the stay 508 (not shown). The screw 513 is screwed into the screw hole 508c of the stay 508.

  A screw hole 508d having the same shape as the screw hole 508c is formed at the same position in the Y direction as the screw hole 508c and at a position apart from the screw hole 508c by the distance D24 in the width direction. Although not shown, screw holes 507c and 507d are also formed in the stay 507 in parallel with the screw holes 508c and 508d at the same position in the width direction. A screw 512 is screwed into the screw hole 507c, and an angle is formed. The member 528 and the stay 507 are fixed.

  The distance D24 is equal to D1 which is the amount of displacement in the width direction between the sub-frames 504 and 505 and the frames 501 and 502 in FIGS. In addition, the distance D2 between the concave groove 618b and the convex line 618d, the distance D5 between the concave groove 619b and the convex line 619d, the distance D8 between the concave groove 718b and the convex line 718d, and the distance D11 between the concave groove 719b and the convex line 719d. Is also equal.

  In order to make the crease line L2 of FIG. 16 coincide with the folding line L1 (from the state of FIG. 16 to the state of FIG. 18), first, the screws 512 and 513 are removed from the screw holes 507c and 508c. Next, all of the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 are moved on the sub-gantry 506 by the distance D1 to the left in FIG. Then, as shown in FIG. 18, the sub-frames 504 and 505 are located at the same positions as the frames 501 and 502 in the width direction, and the screw holes of the angle material 528 containing the screws 512 and 513 are replaced with the screw holes of the stays 507 and 508. 507d and 508d. Next, screws 512 and 513 are inserted into the screw holes 507d and 508d and screwed together, and the angle member 528 and the stays 507 and 508 are fixed. Since the screw hole provided in the angle member 528 has at least the maximum dimension in the width direction substantially the same as the screws 512 and 513, the member supported by the sub-frames 504 and 505 by fixing with the screws 512 and 513. The overall position in the width direction is determined. Thus, the second movement is completed.

  By this operation, the crease line L2 moves to the left side in FIG. 16 by the distance D1, so that the crease line L2 and the folding line L1 can be matched. Therefore, by performing the second movement following the sliding movement of the support member 509, the ridge and the groove facing each other are switched up and down, and the replaced creased position is changed to the folding device 16 in the subsequent stage. Can be matched with the fold line L1, so that a crease can be added to the creased position before and after the replacement.

  The first and second movements are not limited to a form in which a screw is removed and moved, but employs a mechanism for clicking and stopping at each position, and manually switching from one position to the other without removing a screw or the like. May be made.

  In the above description, the second movement is performed after the first movement, but the reverse may be performed. That is, the second movement may be performed first, and then the first movement may be performed.

  The directions of the concave groove and the convex line of the upper roller 618, 718 and the lower roller 619, 719 are opposite to each other. When changing to the state of the ridge, the movement in the direction opposite to the second movement (hereinafter, referred to as a second reverse movement) and the movement in the direction opposite to the first movement (hereinafter, referred to as a first reverse movement) ).

  In the second reverse movement, first, the screws 512 and 513 are removed from the screw holes 507d and 508d. Next, the sub-frames 504 and 505 and all the members supported by the sub-frames 504 and 505 are moved on the sub-gantry 506 to the right in FIG. Then, the positions of the screw holes provided in the angle member 528 match the positions of the screw holes 507c and 508c. Screws 512 and 513 are screwed into the screw holes 507c and 508c, respectively, and the angle member 528 and the stays 507 and 508 are fixed.

  In the first reverse movement, first, the knobs 617 and 717 are turned to separate the creased upper rollers 618 and 718 from the creased lower rollers 619 and 719. Next, the screws 510, 511 are removed from the screw holes 507b, 508b, the support member 509 is moved to the left as shown in FIG. 16, the screw holes of the support member 509 are aligned with the screw holes 507a, 508a of the stays 507, 508 and again. The screws 510 and 511 are inserted and screwed and fixed. By this movement, the creased upper rollers 618 and 718 also move by the same distance (distance D23) in the same direction as the support member 509, and from the position where the convex 618d and the concave groove 619b and the convex 718d and the concave groove 719b are opposed to each other. The groove 618b and the ridge 619d are located at positions where the groove 718b and the ridge 719d face each other. That is, the ridges and grooves facing each other are switched up and down. Finally, the knobs 617 and 717 are turned again to adjust the upper creased rollers 618 and 718 and the lower creased rollers 619 and 719 to positions suitable for creasing the sheet.

  By performing the first reverse movement and the second reverse movement, the ridges and the grooves facing each other are switched up and down, and the crease line L2 and the folding line L1 coincide.

  FIG. 19 is a functional block diagram of the electronic control unit 148. In FIG. 6, the electronic control unit 148 illustrates functional blocks realized by cooperation of hardware such as a CPU, a ROM, and a RAM, and software. Therefore, these functional blocks can be realized in various forms by a combination of hardware and software.

  The integrated control device 26 includes a processing content acquisition unit 170 and a start instruction acquisition unit 171. The processing content acquisition unit 170 acquires the paper size, the number of booklets created, the shelves to be used, the presence / absence of trimming, the trimming position, and the like input by the user using the input device 32. Therefore, the processing content acquisition unit 170 functions as a paper size acquisition unit. The paper size includes at least the length in the X and Y directions of the paper used to create the booklet.

  The collation control unit 150, the alignment control unit 152, the folding control unit 154, the binding control unit 156, the fore edge cutting control unit 158, the top and bottom cutting control unit 160, and the stacker control unit 162 are respectively a collating device 12, a direction changing device 14, The drive units of the folding device 16, the saddle stitching device 18, the fore edge cutting device 20, the top and bottom cutting device 22, and the belt stacker 24 are controlled. At the time of this control, the information acquired by the processing content acquisition unit 170 is referred to as necessary.

  Note that each of the shelves 40 of the collating apparatus 12 may be provided with a paper size sensor for detecting a paper size. The collation control unit 150 may obtain the detection result of the paper size sensor, determine the paper size, and output the determination result to the integrated control device 26. This also allows the processing content acquisition unit 170 to acquire the paper size.

  The alignment control unit 152 acquires the paper size from the integrated control device 26 and controls the movement of the alignment guides 209 and 309 based on the paper size. In addition, drive control of the carry-in conveyance belt 50 and the toothed belts 208 and 308 is also performed.

  Next, the operation of the bookbinding system 10 configured as described above will be described. The integrated control device 26 acquires the lengths of the sheet P in the X direction and the Y direction in advance by the user input or the like by the processing content acquisition unit 170. The alignment control unit 152 drives the alignment guides 209 and 309 based on the acquired length of the sheet P in the X direction so that the distance between the vertical portions 209a and 309a is smaller than the X direction length of the acquired sheet size. The standby position is set to allow a certain amount of time to allow a margin. Further, one of each of two claws 208a and 308a provided on the toothed belts 208 and 308 is located at a position closer to the Y-direction upstream edge of the paper P carried in by the carry-in conveyor belt 50. The driving source is driven so as to be in the standby position retracted to the fixed amount upstream side.

  Note that the collating apparatus 12 of the present embodiment is configured to stack the paper P on the basis of the edge on the upstream side in the Y direction. Therefore, when the length of the paper P in the Y direction changes, the paper P is carried in by the carry-in conveyance belt 50. The position of the edge of the incoming sheet on the downstream side in the Y direction changes, but the position of the edge on the upstream side in the Y direction does not change, so that the standby positions of the claws 208a and 308a are always constant. However, the present invention is not limited to this mode, and the paper P may be transported based on the center. In this case, the integrated control device 26 also acquires the length of the sheet in the Y direction as the sheet size, and the unloading / transporting control unit 184 determines the position of the claw 208a in accordance with the position of the Y-direction upstream edge that changes according to the length in the Y direction. , 308a to change the standby position.

  In the binding control unit 156, the fore edge trimming control unit 158, the top and bottom trimming control unit 160, and the stacker control unit 162, the saddle stitching device 18, the fore edge trimming device 20, the top and bottom trimming device 22, and the belt stacker 24 are positioned in advance according to the sheet size. The member to be adjusted is driven to set the position.

  When the user performs an operation to instruct the bookbinding system 10 to start processing by the integrated control device 26, the start instruction acquisition unit 171 acquires this instruction, and the bookbinding system 10 starts operating. Then, the required paper P is sent out from the collating device 12, and the direction is changed, folded, saddle stitched, fore edge trimming, and top and bottom trimming are sequentially performed to create a booklet.

  FIGS. 20 to 22 are diagrams showing the operation of the direction changing device 14 in which the transport direction of the sheet P sent from the upstream side in the X direction is changed by 90 ° and sent out toward the downstream side in the Y direction. In FIGS. 20 to 22, the carry-in / transport belt 50 is not shown in order to facilitate understanding of the operation of the sheet P.

  The sheet P (FIG. 20) sent from the upstream side in the X direction stops at the leading end in the X direction abutting on the alignment guide 309. At this time, the sheet P transported between the upper transport belt 51 and the lower transport belt 52 of the carry-in transport belt 50 passes above the pulley 56, and is released below the pulley 56. Since the paper conveyance line by the carry-in conveyance belt 50 is provided at a position higher than the mounting surface Z, the leading end of the paper P jumps over the alignment guide 209, the guide surface 205a, the upper surface of the toothed belt 206, and the guide surface 205b. , Lands on the mounting surface 107a of the belt 107. The paper P is conveyed in the X direction as it is, and the leading end of the paper P abuts on the vertical portion 309a of the alignment guide 309 and stops, and the paper P is mounted on the mounting surface Z between the alignment guides 209 and 309. Is placed. At this time, the alignment guides 209 and 309 are at the standby position.

  Next, the alignment guide control unit 182 drives the gears 210 and 310 to move the alignment guide 209 and the alignment guide 309 to the alignment position. The upstream edge and the downstream edge of the sheet P in the X direction are sandwiched between the alignment guide 209 and the alignment guide 309 (FIG. 21). The position of the sheet P at this time is a position where the crease line L2 by the crease mechanism 500 is the center of the sheet P in the X direction.

  Next, the toothed belts 208 and 308 are driven by the carry-out / transport control unit 184, and the claws 208a and 308a on the upper surface start moving in the Y direction. The claws 208a and 308a come into contact with the edge of the sheet P on the upstream side in the Y direction, and push the sheet P in the Y direction.

  The sheet P carried out in the Y direction is introduced into the crease mechanism 500, and a crease is provided at the center of the sheet P in the width direction (X direction) (FIG. 22). When the sheet P enters the creasing mechanism 500, the front and rear ends in the X direction are sandwiched between the alignment guides 209 and 309, so that the position of the sheet P in the X direction is fixed. Therefore, a folding line can be accurately provided at the center of the sheet P in the width direction (X direction).

  The upper rollers 618, 718 and the lower rollers 619, 719 have a combination of a convex ridge upward and a concave groove below, or a combination of a concave groove above and a convex ridge below. It is configured to be selectable. That is, the direction of the convex shape of the folding line can be arbitrarily selected in advance. Therefore, when the paper P is a relatively thin paper, a concave groove is arranged above and a convex stripe is arranged below to provide a convex folding line, and the direction of the convex is determined by the fold by the folding mechanism 400. In the case where the paper P is relatively thick paper, a convex ridge is provided upward and a concave groove is provided below, so that a convex folding line is provided downward. By directing the inside of the fold by the folding mechanism 400, a straight fold with no back crack can be obtained regardless of whether it is thick paper or thin paper.

The standard for separating the thick paper and the thin paper is preferably about 0.3 mm for the thickness and about 200 g / m ^{2 for the} continuous amount.
Note that the folding mechanism 400 of the present embodiment is configured to bend the upper side to the outside. However, instead of the folding mechanism 400, when a folding mechanism is provided to bend the lower side to the outside, if the paper P is relatively thin paper, a convex ridge is arranged upward and a concave groove is arranged below. When the paper P is a relatively thick paper, a concave groove is arranged above and a convex groove is arranged below, so that the direction of the convex stripe is directed to the outside of the fold by the folding mechanism. Is preferably directed toward the inside of the fold by the folding mechanism. In short, in the case of thin paper, the ridges are oriented in the direction toward the outside by the subsequent folding mechanism, and in the case of thick paper, the ridges are oriented in the direction toward the inside by the subsequent folding mechanism. It is desirable to do so.

  In addition, the centers of the shafts 601, 701, 602, and 702 that support the transport rollers 611, 711, 603, and 703, respectively, are slightly more Y than the centers of the creased upper rollers 618 and 718 and the creased lower rollers 619 and 719. Since the sheet P is shifted to the upstream side in the direction, the sheet P enters the scoring roller while being held by the transport rollers 611, 711, 603, and 703. It can be formed in a straight line parallel to the direction.

  Also, two pairs of the creased rollers are arranged in the Y direction, and the creased upper roller 718 and the creased lower roller on the downstream side of the ridges and grooves of the creased upper roller 618 and the creased lower roller 619 on the upstream side. Since the ridges and grooves 719 are formed to be narrower, a greater force is applied to the downstream scoring roller to deform the sheet P during scoring. Therefore, since the deforming force on the sheet P is gradually increased on the same crease line L2, the folding line is accurately formed without shifting or bending in the width direction. .

In the present embodiment, the screws 510, 511, 512, and 513, which are operation units that are operated when the combination of the ridges and the grooves are switched upside down, are all in one direction (upward). Therefore, since the user can switch the upper and lower sides only by operating from above, a device with good operability can be obtained.
After the pushing of the paper P by the claws 208a and 308a is completed, the alignment guides 209 and 309 return to the standby positions, and wait for the paper P to be carried in next.

  The paper direction changing device 14 can also form a bundle by accumulating the paper P sequentially carried in on the mounting surface Z. The number of sheets to be stacked on the mounting surface Z is acquired in advance by the integrated control device 26 through input by a user or the like. When the acquired number of sheets is one, the sheet direction conversion device 14 carries out the sheets P sent one by one. When the acquired number is a plurality of sheets, a bundle of sheets P fed one by one and stacked on the mounting surface Z by the number acquired is carried out. By stacking the stacked bundles at the front and rear ends in the X direction between the alignment guides 209 and 309, the bundles are aligned and positioned in the X direction, and sent out to the creasing mechanism 500.

  In addition, the collating apparatus 12 can take out the sheets placed on each of the paper feed shelves 40 one by one, and send them out one after another while transporting them in the vertical transport mechanism 44. In this case, the sheet is sent to the direction changing device 14 in a state where a plurality of sheets are stacked in advance by the collating device 12 to change the direction, and the sheet is sent to the creasing mechanism 500.

  As described above, when a plurality of overlapping sheets are already sent from the direction changing device 14, the crease mechanism 500 applies a crease to the overlapped sheets at once, and the folding mechanism 400 in the subsequent stage also applies A fold is provided at one time. Also in this case, when the plurality of sheets are made of relatively thin paper, the upwardly convex ridge (the ridge is directed to the outside of the fold by the folding mechanism) is made of relatively thick paper. In this case, by setting the directions of the ridges and grooves of the creased roller in advance so as to provide a downwardly convex (the ridges face the inside of the fold by the folding mechanism), there is no back crack. A straight fold is obtained.

  Instead of the collating device 12, a sheet feeder 13 may be provided. FIG. 20 is a diagram illustrating a bookbinding system 1010 provided with a sheet feeder 13 instead of the collating apparatus 12 of the first embodiment. The sheet feeder 13 is an apparatus provided with one stacking unit for stacking a large-capacity sheet bundle P0, and separating and sending out the sheets P one by one from the sheet bundle P0. The fed sheet P is sent to the direction changing device 14. The direction changing device 14 may send out the sheets P one by one in the Y direction each time the sheets P are sent one by one in the X direction, send them to the creasing mechanism 500, and perform the creasing one by one. In that case, a plurality of sheets are accumulated in the subsequent saddle stitching device 18 and bound and bound. On the other hand, the number of sheets to be stacked on the placing surface Z is stored in the integrated control device 26 by, for example, inputting in advance by a user, and the number of sheets is stacked on the placing surface Z to form a sheet bundle. You may send it out. In that case, a plurality of sheet bundles are sent to the creasing mechanism 500, and the plurality of sheets are creasing at once. The number of sheets to be stacked on the mounting surface Z may be stored in advance in the integrated control device 26 as a different number for each sheet bundle, and the number of sheets may be stacked on the mounting surface Z to form a sheet bundle and sent out. . Further, it goes without saying that the configuration and operation of the sheet feeder 13 in the bookbinding system 1010 may be performed using one of the shelves 40 of the collating apparatus 12 of the bookbinding system 10.

  In the first embodiment, after the leading and trailing ends in the X direction are positioned by the alignment guides 209 and 309, a folding line is provided at the center in the width direction of the sheet carried out in the Y direction. . That is, the intermediate lines of the alignment guides 209 and 309 in the X direction are configured to coincide with the folding line L1 and the crease line L2. Since the alignment guides 209 and 309 are symmetrically moved in the X direction by the screw shaft 106, a folding line is formed at the center of the sheet in the width direction (X direction) regardless of the size of the sheet in the X direction. I have.

  However, the present invention is not limited to such a form, and the alignment guides 209 and 309 can be individually moved in the X direction, and when the support member 509 is slid, the paper is shifted to the upstream side in the X direction by that amount. The second slide moving mechanism may be omitted by controlling the driving of the alignment guides 209 and 309 so that the folding guide is provided at the center in the width direction (X direction) of the sheet. . At this time, by detecting and acquiring the positions of the support member 509 and the levers 612 and 712, it is determined whether the groove or the ridge is up or down, and the paper is streaked along the crease line L2 in that case. The alignment guides 209 and 309 may be controlled so as to be supplied to the attachment mechanism 500.

  When the second slide mechanism is omitted, the entire folding device 16 or the folding mechanism 400 can be slid in the width direction so that the line L2 and the folding line L1 coincide with each other. By sliding and moving by the distance D1 in the same direction, the crease line L2 and the folding line L1 may be matched.

  The sheet to which the crease is provided by the crease mechanism 500 is gradually folded in an inverted V shape along the crease while being conveyed in the Y direction by the folding mechanism 400 of the folding device 16. The sheet P or sheet bundle Pb folded by the folding device 16 is carried into the saddle stitching device 18. The saddle stitching device 18 is provided with a stitcher (not shown) for driving and binding a U-shaped needle at two places along the folding line, and stacks the folded paper on the upstream side of the binding portion. It has a storage unit that can store the data. After one sheet of paper is stored in the storage unit, the sheets can be bound with a stitcher. The booklet bound by the saddle stitching device 18 is cut at the fore edge side by the fore edge cutting device 20 and the top and bottom sides by the top and bottom cutting device 22 to complete the booklet, and sent out and arranged on the belt stacker 24.

  Next, a second embodiment of the present invention will be described. Members having the same shape and function as those of the first embodiment are assigned the same reference numbers in principle, and detailed description is omitted. The second embodiment of the present invention includes a creasing mechanism 2500 in place of the creasing mechanism 500 in the first embodiment. FIG. 23 is a diagram of the creasing mechanism 2500 viewed from the downstream side in the Y direction (a diagram viewed from the same position and direction as FIG. 9 in the first embodiment).

  Hereinafter, a description will be given focusing on differences from the creasing mechanism 500 according to the first embodiment. As shown in FIG. 23, in the creasing mechanism 2500, there are no members corresponding to the sub-frames 504 and 505 in the creasing mechanism 500, and no openings corresponding to the openings 501a and 502a in the frames 501 and 502 are formed. The fulcrum shaft 704 is fixed to the frames 2501 and 2502, and the shaft 702 is rotatably supported by the frames 2501 and 2502. The pins 707 and 708 are erected on the frames 2501 and 2502, respectively.

  A creased upper roller 2718 is provided instead of the creased upper roller 718. The creased upper roller 2718 has the same shape as the creased upper roller 718, except that the first boss portion 2718e is formed to have a smaller width dimension than the first boss portion 718e of the creased upper roller 718. That is, the outer peripheral surface 2718a, the concave groove 2718b, the edge 2718c, the convex line 2718d, and the second boss portion 2718f having the same shape as the outer peripheral surface 718a, the concave groove 718b, the edge portion 718c, the convex ridge 718d, and the second boss portion 718f are respectively formed. The dimensions (D8, D9, D10, D18, D19) of each part are the same. The creased upper roller 2718 is arranged to face the creased lower roller 719 having the same shape as that of the first embodiment.

  Instead of the stay 508, a stay 2508 is fixedly mounted on the frames 2501 and 2502. The stay 2508 has screw holes 2508a and 2508b formed in parallel in the width direction. The distance D25 between the center of the screw hole 2508a and the center of the screw hole 2508b is equal to the distance D8 between the center in the width direction of the groove 2718b of the creased upper roller 2718 and the center in the width direction of the ridge 2718d. The support member 509 is fixed to the stay 2508 by screwing the screw 511 into the screw hole 2508a.

  A pulley 2723 is fixedly supported on the shaft 701 instead of the pulley 723 in the first embodiment, and is provided adjacent to the creased upper roller 2718 in the width direction. The pulley 2723 has a pulley groove 2723a that is narrower than the pulley groove 723a of the pulley 723.

  The first and second boss portions 719e and 719f on both sides of the creased lower roller 719 are supported by a support plate 2720 provided in place of the support plate 720. The support plate 2720 is composed of two plate members. Below the support plate 2720, a support member 2515 whose opening side faces upward is provided. Each of the two support plates 2720 is fixed to each of the U-shaped open ends of the support member 2515. The support member 2515 is fixed by screws 2516 to a support 2514 provided in place of the support 514 in the first embodiment.

  The support 2514 is fixedly mounted on the frames 2501 and 2502. Screw holes 2514a and 2514b are formed in the support base 2514 in parallel in the width direction. The distance D26 between the center of the screw hole 2514a and the center of the screw hole 2514b is equal to the distance D11 between the center in the width direction of the groove 719b of the lower roller 719 and the center of the protrusion 719d in the width direction. The screw 2516 is screwed into the screw hole 2514a, thereby fixing the support member 2515 to the support base 2514.

  A pulley 2725 is fixedly supported on the shaft 702 instead of the pulley 725 in the first embodiment, and is provided adjacent to the creased lower roller 719 in the width direction. The pulley 2725 has a pulley groove 2725a that is narrower than the pulley groove 725a of the pulley 725. Further, the fixed position to the shaft 702 is a position farther than the pulley 725 when viewed from the creased lower roller 719.

  Similar to the first embodiment, similar members (hereinafter referred to as “rear members”) are also provided on the back side (upstream in the Y direction) of the creased upper roller 5718, the creased lower roller 719, and the members that support or drive these. ) Is provided. As for the member on the back side, the boss portion and the pulley of the upper roller and the lower roller with a round belt are opposite to each other in the width direction with respect to the upper roller 2718 and the lower roller 719. In that the widths of the ridges and grooves are the same as those of the upper creased roller 618 and the lower creased roller 619 in the first embodiment, a support member 509, a support member 2515, a support base 2514, a frame 2501, A member 2502 has the same shape and the same configuration as the member shown in FIG. 23 except that the member 2502 extends to a position where the member on the back side is arranged. The members having the same shape as in the embodiment will be described using the same reference numerals as those in the first embodiment.)

  Similarly to the first embodiment, the support member 509 is also provided on the stay of the same shape provided on the back side of the stay 2508 by using the screw hole on the left side in FIG. 23 among the two screw holes provided in parallel. It is screwed, supports the pin 613 and the shaft 616 on the back side, and also contacts the spacer 627 on the back side.

  The round belt 624 is located between the pulley 2723 and the boss of the upper creased roller on the back side, the round belt 626 is located between the pulley 2725 and the boss of the lower creased roller 619, and the round belt 724 is located on the first boss. The round belt 726 is hung between the first boss portion 719e and the pulley fixedly supported on the shaft 602, respectively, between the portion 2718e and the pulley fixedly supported on the shaft 601. The driving force is transmitted to the upper roller and the lower roller 619 from the shafts 701 and 702, and to the upper roller 2718 and the lower roller 719 from the rear shafts 601 and 602. Similarly to the first embodiment, the shafts 601, 602, 701, and 702 are provided with a driving force by a driving source (not shown) and a driving transmission unit.

  The support 2514 is fixedly mounted on the frames 2501 and 2502. The support member 2515 also supports a member of the same shape provided on the back side of the support plate 2720. The support member 2515 is formed with an opening through which a rising portion of the support plate 2720 can be penetrated.

  Hereinafter, in the second embodiment, a mechanism and an operation in which a ridge and a groove facing each other are exchanged up and down in a portion where the creased upper roller 2718 and the creased lower roller 719 face each other will be described. In the second embodiment, a third movement is performed in which the creased upper roller 2718 is moved in the width direction with respect to the creased lower roller 719, and the creased lower roller 719 is also moved in the width direction with respect to the creased upper roller 2718. A fourth movement is made to move to.

  FIG. 24 is a view of the state after performing the third and fourth movements from the state of FIG. 23, as viewed from the same position as in FIG. In FIG. 23, the screw 511 is screwed into the screw hole 2508a to fix the support member 509 to the stay 2508, but in FIG. 24, it is screwed into the screw hole 2508b. Therefore, in FIG. 24, the positions of the support member 509 and each member attached to the support member 509 are shifted to the right in the figure by a distance D25 as compared with FIG.

  In FIG. 23, the screw 511 is screwed into the screw hole 2514a in order to fix the support member 2515 to the support base 2514, but in FIG. 24, it is screwed into the screw hole 2514b. Accordingly, in FIG. 24, the positions of the support member 2515 and each member attached to the support member 2515 are shifted to the left in the figure by a distance D26 as compared with FIG.

The distance D25 between the screw holes 2508a and 2508b and the distance D26 between the screw holes 2514a and 2514b are determined by the distance D8 between the groove 2718b and the ridge 2718d and the distance D11 between the groove 719b and the ridge 719d. equal. Further, the distance is also equal to the interval between the ridges and concave grooves of the upper creased roller and the lower creased roller 619 provided on the upstream side in the Y direction (the back side in FIGS. 23 and 24).
The third and fourth movement procedures will be described. First, before the third and fourth movements, the knobs 617 and 717 are turned to separate the deep upper crease roller and the upper crease roller 2718 from the lower crease rollers 619 and 719.

  In the third movement (moving the support member 509 from the position shown in FIG. 23 to the position shown in FIG. 24), the screw 511 is then removed from the screw hole 2508a. The screw 510 on the back side is also removed. Then, the support member 509 is moved rightward in the figure, and the screw hole of the support member 509 is aligned with the screw hole 2508b of the stay 2508, and the screw 511 is inserted again to be screwed and fixed. Similarly, the screw 510 on the back side is screwed and fixed to a screw hole adjacent to the screw hole removed. Thus, the third movement is completed.

  Similarly to the first embodiment, by fixing with screws 510 and 511, the position of the support member 509 in the width direction is determined. Accordingly, the third movement causes the support member 509 to move rightward in the figure by the distance D25, and similarly to the first movement in the first embodiment, the support member 509 and the levers 612, 712, The creased upper roller supported by this also moves by the same distance in the same direction.

  The moving distance D25 is equal to the interval D8, D2 between the ridge and the groove adjacent in the width direction in each of the creased upper roller 2718 and the back creased upper roller. As a result, the center in the width direction of the groove 2718b before the movement coincides with the position of the ridge 2718d after the movement.

  Next, a fourth movement (movement of the creased lower roller) is performed. First, the screw 2516 is removed from the screw hole 2514a. Then, the support member 2515 is moved to the left in the figure, and the screw hole of the support member 2515 is aligned with the screw hole 2514b of the support base 2514, and the screw 2516 is inserted again to be screwed and fixed. As in the case of the support member 509, by fixing with the screw 2516, the position of the support member 2515 in the width direction is determined. Similarly to the support member 509, a screw fixing portion may be provided on the back side and screwed and fixed to a screw hole adjacent to the screw hole similarly removed. Thus, the fourth movement is completed.

  By this fourth movement, the support member 2515 slides leftward in the drawing by the distance D26, and together with the support member 2515, the support plate 2720 and the creased lower roller 719 supported by the support plate 2720 also move in the same direction. Move a distance. Similarly, the lower creased roller 619 on the back side moves by the same distance in the same direction.

  The moving distance D26 is equal to the interval D11, D5 between the ridge and the groove adjacent in the width direction in each of the creased lower rollers 719, 619. As a result, the center in the width direction of the ridge 719d before the movement coincides with the position of the concave groove 718b after the movement. The same applies to the lower creased roller 619 on the back side.

  As a result of the third and fourth movements, the position where the concave groove 2718b faces the convex groove 719d is changed to the position where the convex groove 2718d faces the concave groove 719b. Therefore, in the portion where the upper creased roller 2718 and the lower creased roller 719 oppose each other, the upper creased roller 2718 and the lower creased roller 719 move in opposite directions in the width direction, so that the ridge and the concave opposing each other. The groove will be switched up and down. The same applies to the upper creased roller and the lower creased roller 619 on the back side.

After the third and fourth movements, the knobs 617 and 717 are turned again, and the upper scoring roller 2718 and the lower scoring roller 719, and the upper scoring upper roller and the lower scoring roller 619 are creased on the sheet. Adjust to a suitable position.

  Although the fourth movement is performed after the third movement in the above description, the reverse may be performed, that is, the third movement may be performed after the fourth movement. In addition, by performing each of the movements in a procedure reverse to the third and fourth movements, contrary to the third and fourth movements, the lower part has a concave groove and the upper part has a ridge, and the upper part has a convex ridge. The concave groove and the lower part can be in a state of a ridge.

  Also in the second embodiment, whether the upper roller with a crease and the lower roller with a crease are a combination of an upwardly convex ridge and a downwardly concave groove, or a combination of an upwardly concave groove and a downwardly convex ridge ( Whether the direction of the ridge is the outer side or the inner side of the fold formed by the folding mechanism can be selected in advance. Therefore, a straight fold with no back crack can be obtained by using a combination of the convex stripe and the concave groove suitable for each of thick paper and thin paper.

  Further, in the present embodiment, since the upper creased roller and the lower creased roller can be individually moved in the width direction, the sub-frame as in the first embodiment is not required, so that the apparatus can be configured simply. can do.

  Further, as in the first embodiment, the relationship between the center rollers of the upper roller with crease, the lower roller with crease, and the shafts 601, 602, 701, 702 is displaced such that the shaft is shifted to the upstream side in the Y direction as in the first embodiment. Therefore, the paper P can be made to advance straight from the paper P without fail, and the crease can be formed as a straight line parallel to the Y direction.

  Furthermore, similarly to the first embodiment, the upper roller and the groove of the lower roller are more downstream than the upper roller and the groove of the lower roller on the upstream side. Is formed with a smaller width, so that the folding line does not shift or bend in the width direction and is formed accurately.

  Next, a third embodiment of the present invention will be described. Members having the same shape and function as those of the first embodiment are assigned the same reference numbers in principle, and detailed description is omitted. The third embodiment of the present invention includes a creasing mechanism 3500 instead of the creasing mechanism 500 in the first embodiment. The crease mechanism 3500 includes a crease roller unit 3503. FIG. 25 is a diagram of the creased roller unit 3503 viewed from the downstream side in the Y direction (a diagram viewed from the same position and direction as FIG. 9 in the first embodiment).

  Hereinafter, a description will be given focusing on differences from the creasing mechanism 500 according to the first embodiment. As shown in FIG. 25, in the creasing mechanism 3500, a rack 3517 is formed on the upper surface of the support member 509, and a pinion gear 3518 meshes with the rack 3517 from above. A timing pulley 3519 is provided coaxially with the pinion gear 3518, and a timing belt 3522 is hung between the timing pulley 3521 provided on the output shaft of the motor 3520.

  When the motor 3520 is rotationally driven, the pinion gear 3518 is rotationally driven via the timing pulley 3521, the timing belt 3522, and the timing pulley 3519, so that the support member 509 on which the rack 3517 is formed moves in the width direction.

  A rack 3523 is formed on the lower surface of the support base 514, and a pinion gear 3524 meshes with the rack 3523 from below. A timing pulley 3525 is provided coaxially with the pinion gear 3524, and a timing belt 3528 is hung between the timing pulley 3527 provided on the output shaft of the motor 3526. The shaft of the pinion gear 3524 is supported by a member fixed to the sub frame 506, and the motor 3526 is also fixed to the sub frame 506.

  When the motor 3526 is rotationally driven, the pinion gear 3524 is rotationally driven via the timing pulley 3527, the timing belt 3528, and the timing pulley 3525, so that the support 514 on which the rack 3523 is formed moves in the width direction.

  Further, a motor 3717 is provided instead of the knob 717 on the shaft 716 on which the eccentric roller 715 is fixedly supported, and the shaft 716 can be driven. Also in this embodiment, similar to the first embodiment, similar members are provided on the back side (upstream in the Y direction) of the creased upper roller 718, the creased lower roller 719, and the members supporting or driving these. Have been. A motor 3617 (not shown) for driving the eccentric roller 615 on the back side is provided.

  That is, in the present embodiment, a part that has been manually moved when replacing the upper and lower combinations of the ridges and grooves of the creased upper roller and the creased lower roller in the first embodiment is automated. When the motor 3520 is driven to rotate, the support member 509 moves in the width direction, so that the creased upper rollers 618 and 718 also move in the width direction. The motor 3520 has two states: a state in which the creased upper rollers 618 and 718 are at the position shown in FIG. 25 (hereinafter, referred to as a first position) and a state in which the scoring upper rollers 618, 718 are at the same position as FIG. It is rotationally driven to stop at the street position. By rotating the motor 3526, the support base 514 moves in the width direction, so that the sub-frames 504 and 505 and all the members supported by the sub-frames move in the width direction. The motor 3526 operates in a state where the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 are at the position shown in FIG. 25 (or the same position as FIG. 16 in the first embodiment) (hereinafter referred to as a third position). (Hereinafter, referred to as a fourth position).

  The first position and the second position correspond to the support members 509 and the support members 509 regardless of whether the subframes 504 and 505 and the members supported by the subframes are at the third position or the fourth position. It indicates the relative position with respect to the stay 3508. Similarly, the third position and the fourth position indicate relative positions of the sub-frames 504 and 505 and the frames 501 and 502 regardless of whether the support member 509 is at the first position or the second position. I do.

  FIG. 27 is a block diagram illustrating a paper information input and a control system for controlling the motors 3520, 3526, 3617, and 3717 according to the input paper information according to the third embodiment. The input device 32 inputs predetermined data to the PC 28 including the CPU. The display 30 performs screen display necessary for this input. The scoring determining unit 28a determines, based on the data input to the PC 28 by the input device 32, the combination of the opposing ridges and grooves of the upper scoring rollers 618, 718 and the lower scoring rollers 619, 719, It is determined whether the upper part is a convex groove and the lower part is a concave groove, or the upper part is a concave groove, and the lower part is a convex groove.

  More specifically, the combination of the ridge and the groove is a ridged direction flag FL for identifying whether the upper part is a ridge and the lower part is a ridge, or the upper part is a ridge but a concave groove. The setting is made in advance, and the scoring determining unit 28 sets FL = 0 when it is determined that the upper part is a concave groove and the lower part is a convex groove, and sets FL = 1 when it is determined that the upper part is a convex groove and the lower part is a concave groove. Thus, the information is sent to the drive control unit 28b. The drive control unit 28b thereafter refers to the crease direction flag FL as necessary.

  The upper sensor S1 is a sensor capable of detecting whether the creased upper rollers 618, 718 are at the first position or the second position (not shown in FIG. 25). For example, a sensor that can detect the support member 509 when it is at the first position and a sensor that can detect this when it is at the second position are fixed to the stay 3508.

The lower sensor S2 is a sensor capable of detecting whether the sub-frames 504 and 505 and the members supported by the sub-frames are at the third position or the fourth position (not shown in FIG. 25). For example, a sensor that detects that the sub-frame 505 is at the third position is fixed to the frame 502, and a sensor that detects that the sub-frame 504 is at the fourth position is fixed to the frame 501.
The drive control unit 28b drives the motors 3520, 3526, 3617, and 3618 based on the determination result of the crease determination unit 28a (contents of the crease direction flag FL) and the detection results of the upper sensor S1 and the lower sensor S2. Judgment is made, and a driving signal is sent if driving is necessary.

  FIG. 28 is a diagram showing a paper thickness selection screen 30a displayed on the display 30. The paper thickness selection screen 30a includes a thin paper key 30b and a thick paper key 30c. The user selects and inputs one of the thin paper key 30b and the thick paper key 30c using the mouse or keyboard of the input device 32 according to the thickness of the paper to be used.

  FIG. 29 is a flowchart showing the setting operation after the selection input. A number such as “S02” indicates each step. Hereinafter, the “step” is omitted, and is simply represented by only a symbol such as “S02”. First, it is determined whether "thick paper" is selected by the thick paper key 30c by the input device 32 or "thin paper" is selected by the thin paper key 30b (S02, S04). If “thick paper” is selected (Y in S02), the process proceeds to S206. If “thin paper” is selected (Y in S04), the process proceeds to S106. If there is no input (N in S02, N in S04), the process returns to S02 and waits for an input.

  First, the operation when “thin paper” is input will be described. In S106, the crease determining unit 28a sets the crease direction flag FL = 0. FL = 0 means that the combination of the ridges and grooves facing each other of the creased upper rollers 618 and 718 and the creased lower rollers 619 and 719 is that the upper part is a concave part and the lower part is a convex part. The drive control unit 28b controls the drive of each part as necessary after the next step so that such a combination is obtained.

  Next, it is determined whether or not the positions of the creased upper rollers 618 and 718 detected by the upper sensor S1 are the first positions (S108). When the positions of the creased upper rollers 618 and 718 are the first position (Y in S108), the combination of the ridge and the groove already facing each other is a groove on the top and a ridge on the bottom. After that, the setting operation ends without operating.

  If the positions of the creased upper rollers 618 and 718 are not the first position (N in S108), the motors 3617 and 3717 are driven to rotate the eccentric rollers 615 and 715, thereby rotating the levers 612 and 712. Then, the upper rollers 618, 718 are raised, separated from the lower rollers 619, 719 by a predetermined amount, and stopped (S110). The predetermined amount is a portion of the upper roller 618 and the lower roller 619, and the upper roller 718 and the lower roller 719 where the ridges and the grooves are opposed to each other. Are radially separated from the edge of the groove, so that the upper rollers 618 and 718 and the lower rollers 619 and 719 can move in the width direction without interfering with each other. It is.

Next, the motors 3520 and 3526 are driven to rotate (S112). The motors 3520 and 3526 are rotatable in the forward and reverse directions, and the rotation of the motors 3520 and 3526 in FIG. In S112, both the motors 3520 and 3526 are rotated forward.

  The rotation of the motor 3520 causes the support member 509 to move rightward in FIG. Since the spacers 627, 727 attached to the support member 509 also move in the same direction, the levers 612, 712 sandwiched between the spacers 627, 727 also move in the same direction. Further, the rotation of the motor 3526 causes the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 to all move on the sub-gantry 506 to the left in FIG.

  When the upper sensor S1 detects that the support member 509 has reached the second position (Y in S114), the rotation of the motor 3520 is stopped (S116). With this control, the support member 509 stops at the second position.

  When the lower sensor S2 detects that the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 have reached the fourth position (Y in S118), the rotation of the motor 3526 is stopped. (S120). By this control, the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 stop at the fourth position.

  When at least one of the motors 3520 and 3526 is rotationally driven (N in S122), the process returns to S114. That is, the motor 3520 continues to rotate until the supporting member 509 reaches the second position, and the motor 5326 continues until the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 reach the fourth position. Continues to rotate.

  When the rotation of both the motors 3520 and 3526 is stopped (Y in S122), the support member 509 is in the second position, and the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 are in the fourth position. Since the motors 3617 and 3717 have reached the respective positions, the motors 3617 and 3717 are driven in the opposite direction to S110 (S24), and the levers 612 and 712 are rotated by the rotation of the eccentric rollers 615 and 715. The rollers 618 and 718 are lowered to approach the lower rollers 619 and 719 with a predetermined distance. The predetermined distance is a distance at which a folding line can be reliably provided without the paper being cut when the paper passes during the predetermined distance. It may be made different depending on the thickness and / or the number of sheets passing therethrough.

  Next, an operation when “thick paper” is input will be described. In S206, the crease determining unit 28a sets the crease direction flag FL = 1. FL = 1 means that the combination of the ridges and grooves facing each other of the creased upper rollers 618 and 718 and the creased lower rollers 619 and 719 is that the top is a ridge and the bottom is a groove. The drive control unit 28b controls the drive of each part as necessary after the next step so that such a combination is obtained.

  Next, it is determined whether or not the positions of the creased upper rollers 618 and 718 detected by the upper sensor S1 are the second positions (S208). When the position of the creased upper rollers 618 and 718 is the second position (Y in S208), the combination of the ridge and the groove already facing each other is a ridge on the top and a groove on the bottom. After that, the setting operation ends without operating.

  If the positions of the creased upper rollers 618 and 718 are not the second position (N in S208), the motors 3617 and 3717 are driven to move the creased upper rollers 618 and 718 and the creased lower rollers 619 and 719 by a predetermined amount. The operation is stopped after being separated (S210). This operation is the same as S110, that is, by this operation, the upper creased rollers 618, 718 and the lower creased rollers 619, 719 can move in the width direction without interfering with each other.

  Next, both the motors 3520 and 3526 are reversed (S212). By the rotation of the motor 3520, the support member 509 moves to the left in FIG. 25, that is, the spacers 627, 727 and the levers 612, 712 also move in the same direction. Further, by the rotation of the motor 3526, all of the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 move rightward in FIG.

  When the upper sensor S1 detects that the support member 509 has reached the first position (Y in S214), the rotation of the motor 3520 is stopped (S216). With this control, the support member 509 stops at the first position.

  When the lower sensor S2 detects that the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 have reached the third position (Y in S218), the rotation of the motor 3526 is stopped. (S220). By this control, the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 stop at the third position.

  When at least one of the motors 3520 and 3526 is rotationally driven (N in S222), the process returns to S214. That is, the motor 3520 continues to rotate until the support member 509 reaches the first position, and the motor 5326 continues until the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 reach the third position. Continues to rotate.

  When both the motors 3520 and 3526 stop rotating (Y in S222), the support member 509 is at the first position, and the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 are the third position. Since the positions have already been reached, the process proceeds to S24, and the distance between the creased upper rollers 618, 718 and the creased lower rollers 619, 719 is set to a predetermined distance.

  In the present embodiment, by the operation of this flowchart, the support member 509 moves between the first position and the second position, the sub-frames 504 and 505, and the members supported by the sub-frames 504 and 505 become the third. After the operation, when the support member 509 is at the first position, the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 are moved after the operation. When the support member 509 is at the third position and the support member 509 is at the second position, the subframes 504 and 505 and the members supported by the subframes 504 and 505 are at the fourth position.

  Therefore, if the support member 509 is at the first position in S108, the motor 3526 is rotated forward assuming that the subframes 504 and 505 and the members supported by the subframes 504 and 505 are at the third position. In order to achieve more reliable control, the condition for proceeding to S110 is also based on the fact that the sub-frames 504 and 505 and the members supported by the sub-frames 504 and 505 are at the third position by the lower sensor S2 in S108. It may be. Similarly, in S208, the condition that the members supported by the sub-frames 504 and 505 are at the fourth position may be the condition for proceeding to S210.

  At this time, the distance between the first and second positions of the support member 509 is the same as the moving distance D23 in the first embodiment, ie, the upper rollers 618 and 718 and the lower rollers 619 and 719 Each is twice the distance D2, D8, D5, D11 between the adjacent ridges and grooves in the width direction. Therefore, this first. By the movement between the second positions, the corresponding concave groove and convex ridge are switched.

  Further, the distance between the sub-frames 504, 505 and the third and fourth positions of the members supported by the sub-frames 504, 505 is equal to the movement distance D24 of the second movement in the first embodiment. It is equal to D1, which is the amount of shift in the width direction between the sub-frames 504, 505 and the frames 501, 502 in FIGS. 9 and 16, and is also equal to the amount of shift in the width direction between the sub-frames 504, 505 and the frames 501, 502 in FIG. In addition, the distance D2 between the concave groove 618b and the convex line 618d, the distance D5 between the concave groove 619b and the convex line 619d, the distance D8 between the concave groove 718b and the convex line 718d, and the distance D11 between the concave groove 719b and the convex line 719d. Is also equal. Accordingly, the movement between the third and fourth positions moves the scored line L2 by the distance D1, so that the scored line L2 and the folding line L1 can be matched.

  In the present embodiment, the movement of the support member 509 and the movement of the members supported by the sub-frames 504 and 505 are performed. Therefore, similarly to the first embodiment, the ridges and the concave grooves facing each other are switched up and down, and the replaced creased position can be matched with the folding line L1 of the folding device 16 at the subsequent stage. After the scoring, before and after the replacement, a crease can be provided at the scoring position.

  Further, in the present embodiment, the movement of the support member 509 and the movement of the members supported by the sub-frames 504 and 505 are performed automatically at the same time, so that the movement time can be shortened and an easy-to-use device can be obtained. There is a merit that can be. Further, since the operation is performed in accordance with the input of the paper thickness by the input device 32, it can be automatically changed to a form suitable for thick paper and thin paper.

In the present embodiment, the user selects one of the thin paper key 30b and the thick paper key 30c on the paper thickness selection screen 30a of the input device 32. However, the present invention is not limited to this mode. Alternatively, the continuous amount may be input. If the thickness or ream of the paper is equal to or greater than a predetermined value, the upper side is a combination of convex ridges, and the lower side is a combination of concave grooves. The drive of the motors 3520, 3526 and the like is controlled so as to be as follows. This predetermined value is desirably about 0.3 mm for paper thickness and about 200 g / m ^{2 for} continuous weight.

  Further, the combination of the ridges and the grooves may be determined based on the thickness of the paper or the data on the amount of reams contained in the job data input by the user or externally obtained through a network or the like.

  Further, a measuring device for measuring the thickness of one sheet fed from the sheet feeding mechanism 42 may be provided, and the combination of the ridges and the grooves may be determined according to the measurement result. The measuring device measures the displacement of a roller when a sheet enters between a pair of rollers whose outer peripheral surfaces are in contact with each other across the paper transport path, or emits light to one side across the paper transport path. An element having a light receiving element on the other side and measuring the amount of light transmitted through the sheet may be employed.

  In addition, during the process of continuously folding a plurality of paper sheets sequentially fed through the creasing mechanism, the ridges and ridges are automatically adjusted according to the thickness of each of the fed paper sheets. The combination of the upper and lower grooves may be changed. For example, in a process in which a set of five sheets is sequentially fed one by one, if only the fifth sheet is thick paper, the upper part is automatically grooved and the lower part is convex after the fourth sheet is creased. The upper part is changed to the convex part, and the lower part is changed to the concave groove. After that, before the first sheet of the next set of five sheets is sent, the upper surface is changed again so that the upper surface becomes a concave groove and the lower surface becomes a convex line.

  Control is performed so as to feed the paper with a time interval between the fourth sheet and the fifth sheet and between the fifth sheet and the first sheet of the next five sheets so that the above change can be made. Even if the number of pages per book and the combination of thick paper and thin paper in each book are different, whether the paper is thick or thin for each page is extracted from the job data, etc. You may make it change the combination of up and down of a groove | channel and a groove.

REFERENCE SIGNS LIST 10 bookbinding system 12 collating device 13 sheet feeder 14 paper direction changing device 16 folding device 18 saddle stitching device 20 fore edge cutting device 22 top and bottom cutting device 24 belt stacker 26 integrated control device 400 folding mechanism 500 creasing mechanism 503 streak roller unit 509 Supporting member 618 Creased upper roller 618b Concave groove 618d Convex ridge 619 Creased lower roller 619b Concave groove 619d Convex ridge 718 Creased upper roller 718b Concave groove 718d Protrusion 719 Creased lower roller 719b Concave groove 719d Convex line L1 fold line Creased line W Transfer surface X Loading direction Y Discharge direction Z Mounting surface P Paper

Claims (9)

A paper crease device that imparts a crease in the transport direction while transporting the loaded paper,
A ridge provided on one side of the conveying surface of the conveyed sheet and having a ridge formed around the outer peripheral surface and a groove formed at a predetermined interval in the axial direction with respect to the ridge. A roller with one streak,
A ridge provided on the other side of the transport surface opposite to the first creased roller and formed around the outer peripheral surface, and formed at a predetermined interval in the axial direction with respect to the ridge. A second creased roller having a concave groove,
A position at which the ridges of the first creased roller face the groove of the second creased roller, and a position at which the groove of the first creased roller faces the protrusion of the second creased roller. A moving mechanism that allows at least one of the first creased roller and the second creased roller to move in the axial direction.
A paper crease device comprising:   The axial arrangement order of the ridges and grooves of the first creased roller and the axial arrangement order of the ridges and grooves of the second creased roller are the same. Item 6. The paper creasing device according to Item 1.   3. An axial distance between the ridges and the grooves of the first creased roller and an axial distance between the ridges and the grooves of the second creased roller are the same. Paper creasing device according to the above.   The first scoring roller and the second scoring roller each have an outer peripheral surface having a smaller diameter than the tip of the ridge and a larger diameter than the bottom surface of the concave groove. 4. The axial distance from the end on the side where the ridges are arranged to the ridges is shorter than the axial distance between the ridges and the grooves. Paper creasing device according to the above. A transport roller provided adjacent to both sides of the first creased roller or the second creased roller in the axial direction, and one transport shaft that supports the transport roller;
The moving mechanism may be configured to move the first scoring roller or the second scoring roller without moving a conveying roller adjacent to the first scoring roller or the second scoring roller and a conveying shaft supporting the conveying roller. The paper creasing device according to any one of claims 1 to 4, wherein the device is configured to be movable.   The sheet creasing device according to claim 5, wherein a center of the first scoring roller or the second scoring roller is disposed downstream of a center of the conveyance roller in a sheet conveyance direction. An actuator for driving the moving mechanism;
Thickness information acquisition means for acquiring information about the thickness of the paper to be creasing,
Control means for controlling the actuator based on the thickness information obtained by the thickness information obtaining means,
The paper creasing device according to any one of claims 1 to 6, further comprising: A plurality of combinations of the first creased roller and the second creased roller are arranged in the transport direction, and among the first creased rollers, the axial positions of the ridges and grooves are the same, and the second creased roller is the same. Along with being arranged so that the axial position of the ridges and grooves of the rollers is the same,
8. The moving mechanism according to claim 1, wherein all of the plurality of first creased rollers or all of the plurality of second creased rollers are configured to be movable at a time. Paper creasing device according to the above. A folding mechanism provided on the downstream side in the transport direction of the first and second creasing rollers, for folding a sheet along a folding line provided by the first and second creasing rollers;
In the moving mechanism, before and after the movement by the moving mechanism, the axial center positions of the ridges and grooves facing each other of the first and second creasing rollers coincide with the folding line of the folding mechanism. The paper creasing device according to claim 1, wherein the paper creasing device is configured to perform the following.

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