JP2011045989A - Cutting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting device in a simple configuration, cutting a plurality of positions of a single paper bundle by using a single blade. <P>SOLUTION: The cutting device is provided with a movable blade so as to cut the paper bundle. A table moving mechanism 18 moves a placement table 170 between a cutting position to cut a placed paper bundle and a retreat position farther away from a cutting-edge moving surface to which a cutting edge of the blade moves than the cutting position. A rotating mechanism 176 rotates the placement table 170 in such a manner as to switch the cutting position of the paper bundle placed on the placement table 170 between a retreating time from the cutting position to the retreat position and a re-advancing time to the cutting position. A sprocket 220 is arranged so as to move and rotate together with the placement table 170. A chain 222 engages with the sprocket 220 during movement of the placement table 170, thereby rotating the placement table 170 by using a force with which the placement table 170 moves. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cutting apparatus, and more particularly to a cutting apparatus that cuts a sheet bundle by moving a blade.

  Conventionally, in the bookbinding finishing process, a cutting process has been performed to align the booklet's forehead, top, and ground to improve the appearance of the booklet. In such a cutting process, a booklet is generally fixed on a cutting table, and the edge is removed by moving the blade toward the booklet. Here, for example, when a top, a ground, a small edge, or the like is cut with a single blade, a cutting device that rotates a rotary table on which a sheet bundle is placed and switches a cutting position has been proposed (see, for example, Patent Document 1). ).

JP 2003-71779 A

  In the technique described in the above-mentioned patent document, a cutting unit including a blade and a mechanism for moving the blade is moved using a drive source. However, since such a cutting unit is generally heavy, it is difficult to reduce the size and cost of a mechanism and a drive source for moving the cutting unit.

  Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a cutting device capable of cutting a plurality of portions of one sheet bundle using a single blade with a simple configuration. It is in.

  In order to solve the above-described problems, a cutting apparatus according to an aspect of the present invention includes a blade provided movably to cut a sheet bundle, and a placement table having a placement surface on which the sheet bundle is to be placed. A table moving means for moving the placement table between a cutting position at which the placed sheet bundle is to be cut, and a retreat position separated from the cutting edge moving surface where the cutting edge of the blade moves from the cutting position; A rotation mechanism that rotates the placement table so as to switch a portion of the sheet bundle placed on the placement table to be cut while the sheet is retracted from the cutting position to the retracted position and advanced again to the cutting position.

  According to this aspect, it is possible to cut the sheet bundle without moving the cutting mechanism including the blade. For this reason, it is possible to cut a plurality of portions of the sheet with a simple configuration.

  The rotation mechanism may rotate the mounting table using a force that moves the mounting table. A paper bundle having a large mass may be placed on the placement table. For this reason, when the mounting table is rotated using a drive source such as a motor, it is difficult to reduce the size and cost of the drive source. According to this aspect, since it is not necessary to provide a drive source for rotating the mounting table, a low-cost rotation mechanism can be realized.

  The rotating mechanism has a rotating member provided to move and rotate together with the mounting table, and an engagement member arranged to rotate the mounting table by engaging with the rotating member during the movement of the mounting table. May be.

  According to this aspect, for example, the mounting table is rotated using the force by which the mounting table moves, by providing a meshing member such as a chain or a rack gear and a rotating member such as a sprocket meshing with the meshing member. Can do. For this reason, a low-cost rotation mechanism can be realized.

  When the mounting table moves between the cutting position and the retracted position, the meshing position engages with the rotating member, and even when the mounting table moves between the cutting position and the retracted position, the rotating table does not mesh with the rotating member. You may further provide the meshing switching mechanism which advances and retracts a meshing member between meshing positions.

  According to this aspect, for example, in the reciprocating path between the cutting position and the retracted position, the mounting table is reversed by meshing the rotating member and the meshing member on one of the forward path and the return path and not meshing on the other. Rotation can be avoided. For this reason, a mounting table can be rotated appropriately in order to cut the next cutting location.

  You may further provide the locking mechanism which locks the mounting table which rotates in a predetermined circumferential direction position. According to this aspect, the shift of the circumferential position of the mounting table can be suppressed. For this reason, it is possible to cut the sheet bundle uniformly.

  The rotating member may be provided so as to idle with respect to the mounting table when the mounting table is locked by the lock mechanism when the rotating member meshes with the meshing member and rotates.

  According to this aspect, it is possible to prevent the movement of the mounting table from being stopped when the rotation of the mounting table is locked by the lock mechanism. For this reason, the mounting table can be locked at the circumferential position for the next cutting and the mounting table can be moved appropriately.

  You may further provide the one-way clutch interposed in a mounting table and a rotation member. According to this aspect, for example, even if the meshing member is not retracted, the mounting table is reciprocated between the cutting position and the retracting position, thereby rotating the mounting table on one of the forward path and the return path and mounting on the other. It is possible to avoid rotating the table.

  The cutting device according to the present invention may further include a detected member that rotates together with the mounting table, and a sensor that detects a position in the rotation direction of the mounting table by detecting the detected member.

  For example, it may be difficult for the apparatus to grasp the position of the mounting table in the rotation direction between the cutting position and the retracted position due to some reason such as turning off the power. For this reason, a countermeasure for providing a sensor for detecting the position of the mounting table in the rotation direction when such a situation occurs can be considered. At this time, for example, if a sensor is provided on the mounting table that moves between the cutting position and the retracted position, the cable connected to the sensor has a length that takes into account the movement of the mounting table, and a space for moving the cable is also secured. This becomes a factor that hinders downsizing or cost reduction of the apparatus. According to this aspect, since mounting of the sensor on the mounting table can be avoided, it is possible to avoid moving the sensor together with the mounting table. For this reason, the length of the sensor cable and the routing space can be suppressed, and downsizing and cost reduction of the apparatus can be realized with a simple configuration.

  The member to be detected may have a protrusion that protrudes radially outward with respect to the rotation center of the mounting table, and the sensor may detect the position of the mounting table in the rotation direction by detecting the protrusion. .

  According to this aspect, for example, the position of the mounting table in the rotation direction can be easily grasped by detecting the protruding portion with a non-contact sensor or the like. For this reason, the further cost reduction of an apparatus is realizable.

  The detected member has a recess that is recessed radially inward with respect to the center of rotation of the mounting table, and the sensor detects the position of the mounting table in the rotation direction by detecting the recess while moving together with the mounting table. May be.

  According to this aspect, for example, the position of the mounting table in the rotation direction can also be detected by moving the sensor by a part of the moving range of the mounting table. For this reason, for example, the space required for detection, such as the sensor space and the path of light received by the sensor, can be suppressed, and further space saving of the device can be realized.

  According to the present invention, it is possible to provide a cutting apparatus capable of cutting a plurality of portions of one sheet bundle using a single blade with a simple configuration.

It is a perspective view showing composition of a cutting device concerning a 1st embodiment. It is the front view which looked at the cutting apparatus which concerns on 1st Embodiment from the viewpoint P of FIG. It is the reverse view which looked at the cutting apparatus which concerns on 1st Embodiment from the viewpoint Q of FIG. It is the left view which looked at the cutting apparatus which concerns on 1st Embodiment from the viewpoint R of FIG. (A) is a figure which shows the relationship between the booklet, the fixing mechanism, and the blade edge | tip moving surface L1 when cutting one side of the top and bottom. (B) is a figure which shows the cutting mechanism in case a cutter exists in an initial position in order to cut one side of a top and bottom. (C) is a figure which shows the cutting mechanism when a cutter falls to a lowered position to cut one side of the top and bottom. (A) is a figure which shows the relationship between the booklet, the fixing mechanism, and the blade edge moving surface L1 when cutting a forehead. (B) is a figure which shows the cutting mechanism in case a cutter exists in an initial position in order to cut a fore edge. (C) is a figure which shows a cutting mechanism when a cutter falls to a lowered position to cut a fore edge. (A) is a figure which shows the relationship with the booklet, the fixing mechanism, and the blade edge | tip moving surface L1 when cutting the other top and bottom. (B) is a figure which shows the cutting mechanism in case a cutter exists in an initial position in order to cut the other top and bottom. (C) is a figure which shows a cutting mechanism when a cutter falls to a lowered position to cut the other of the top and bottom. It is the figure which looked at the table unit from the viewpoint S of FIG. It is an enlarged view of the table unit periphery of FIG. (A) is a figure which shows operation | movement of the mounting table when advancing from cutting position P2 to cutting position P1 to cut one side of the top and bottom. (B) is a figure which shows operation | movement of the mounting table when it retracts | saves from the cutting position P1 to the retracted position P2 after cutting one side of the top and bottom. (A) is a figure which shows operation | movement of the mounting table when advancing from the retracted position P2 to the cutting position P1 to cut the fore edge. (B) is a figure which shows operation | movement of the mounting table when retracting from the cutting position P1 to the retracted position P2 after cutting the edge. (A) is a figure which shows operation | movement of a mounting table when advancing from cutting position P2 to cutting position P1 in order to cut the other of the top and bottom. (B) is a figure which shows the operation | movement of a mounting table when it retracts | saves from the cutting position P1 to the retracted position P2 after cutting the other top and bottom. It is a right view of a cutting device. It is a perspective view which shows the back surface of a cutting device. (A) is a left side view of the cutting apparatus according to the first embodiment when the placement table is at the retracted position P2. (B) is a left side view of the cutting apparatus according to the first embodiment when the placement table has advanced to the cutting position P1. (C) is a left side view of the cutting apparatus according to the first embodiment when the booklet is pressed by the pressing member when the placing table is held at the cutting position P1. It is a figure which shows the area | region pressed by the pressing member. (A) is a left side view of the cutting apparatus according to the second embodiment when the placement table is at the retracted position P2. (B) is a left side view of the cutting apparatus according to the second embodiment when the placement table has advanced to the cutting position P1. (C) is a left side view of the cutting apparatus according to the second embodiment when the booklet is pressed by the pressing member when the placing table is held at the cutting position P1. It is a figure which shows the area | region pressed by the pressing member and the other pressing member. It is a figure which shows the structure of the initial position detection mechanism which concerns on 3rd Embodiment. It is a flowchart which shows the procedure of the initialization process by the initial position detection mechanism which concerns on 3rd Embodiment. It is the thing which showed typically the motion of the to-be-detected member when the initialization process which concerns on 3rd Embodiment was performed. (A) And (b) is a figure which shows the structure of the initial position detection mechanism which concerns on 4th Embodiment. (A) And (b) is a figure which shows the state of an initial position detection mechanism when a chain is advanced to an advance position. (A) is a figure which shows the state of the initial position detection mechanism when the recessed part of a slit board is detected by the optical sensor, (b) is when the chain is retracted from the state of (a) to the retracted position. It is a figure which shows the state of this initial position detection mechanism. It is a flowchart which shows the procedure of the initialization process by the initial position detection mechanism which concerns on 4th Embodiment.

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

(First embodiment)
FIG. 1 is a perspective view showing a configuration of a cutting apparatus 10 according to the first embodiment. The cutting device 10 includes a frame 12, a cutting mechanism 14, a table unit 16, a table moving mechanism 18, and a sheet pressing mechanism 20.

  FIG. 2 is a front view of the cutting apparatus 10 according to the first embodiment viewed from the viewpoint P of FIG. The cutting mechanism 14 includes a blade unit 22, an upper right guide unit 24, an upper left guide unit 26, a lower guide unit 28, an upper right horizontal rail 30, an upper left horizontal rail 32, and a lower horizontal rail 34.

  The blade unit 22 includes a blade 40, a center plate 42, an upper plate 44, a lower plate 46, a right vertical rail 48, and a left vertical rail 50. The blade unit 22 is provided so as to be movable in the horizontal direction and the vertical direction, whereby the blade 40 is provided so as to be movable so as to cut the sheet bundle.

  The blade 40 is provided in a flat plate shape and is disposed so that the blade edge faces downward. In the first embodiment, the blade 40 is provided so that the blade edge is lowered as it goes to the right. The upper part of the blade 40 is fixed below the central plate 42. An upper plate 44 is disposed above and on the same surface of the central plate 42, and a lower plate 46 is disposed below and on the same surface of the central plate 42. The center plate 42, the upper plate 44, and the lower plate 46 are connected to each other on the right side by a right vertical rail 48 that extends vertically, and are connected to each other on the left side by a left vertical rail 50 that extends vertically. Yes.

  The upper right guide unit 24 includes a vertical guide 52, a horizontal guide 54, and a block 56. The vertical guide 52 has a recess extending in the vertical direction so that the right vertical rail 48 is slidably fitted. The upper right horizontal rail 30 is fixed to the upper right of the front surface of the frame 12 so as to extend in the horizontal direction. The horizontal guide 54 has a recess extending in the horizontal direction so that the upper right horizontal rail 30 is slidably fitted. The vertical guide 52 and the horizontal guide 54 are coupled to each other by a block 56.

  The upper left guide unit 26 includes a vertical guide 58, a horizontal guide 60, and a block 62. The vertical guide 58 has a concave portion extending in the vertical direction so that the left vertical rail 50 is slidably fitted. The upper left horizontal rail 32 is fixed to the upper left of the front surface of the frame 12 so as to extend in the horizontal direction. The horizontal guide 60 has a recess extending in the horizontal direction so that the upper left horizontal rail 32 is slidably fitted. The vertical guide 58 and the horizontal guide 60 are coupled to each other by a block 62. Further, the central plate 42 and the lower plate 46 are coupled to each other by a connecting member 47.

  The lower guide unit 28 includes a vertical guide 64, a vertical guide 66, a horizontal guide 68, and a block 70. The vertical guide 64 has a recess extending in the vertical direction so that the right vertical rail 48 is slidably fitted. The vertical guide 66 has a recess extending in the vertical direction so that the left vertical rail 50 is slidably fitted. The lower horizontal rail 34 is fixed below the front surface of the frame 12 so as to extend in the horizontal direction. The horizontal guide 68 has a recess extending in the horizontal direction so that the lower horizontal rail 34 is slidably fitted. The vertical guide 64 and the vertical guide 66 and the horizontal guide 68 are coupled to each other by a block 70.

  In this way, the blade unit 22 is configured such that the right vertical rail 48 is slidably fitted to the vertical guide 52 and the vertical guide 64, and the horizontal guide 54 and the vertical guide 66 are slidably fitted to the left vertical rail 50. It is provided so as to be movable in the vertical direction. Hereinafter, the vertical guide 52, the vertical guide 58, the vertical guide 64, the vertical guide 66, the right vertical rail 48, and the left vertical rail 50 for moving the blade 40 vertically will be referred to as a vertical linear guide mechanism 80.

  In addition, the blade unit 22 includes a horizontal guide 54, a horizontal guide 60, and a horizontal guide 68 that are slidably fitted to the upper right horizontal rail 30, the upper left horizontal rail 32, and the lower horizontal rail 34, respectively. 24, the upper left guide unit 26, and the lower guide unit 28 are provided so as to be movable in the horizontal direction. Hereinafter, the horizontal guide 54, the horizontal guide 60, the horizontal guide 68, the upper right horizontal rail 30, the upper left horizontal rail 32, and the lower horizontal rail 34 for enabling the blade 40 to move in the horizontal direction are referred to as a horizontal linear guide mechanism 82. .

  One end of a first hydraulic cylinder 86 is connected to the periphery of the right end portion of the lower plate 46. The other end of the first hydraulic cylinder 86 is connected to the frame 12. For this reason, the blade unit 22 can be moved in the vertical direction by expanding and contracting the first hydraulic cylinder 86. Hereinafter, the vertical linear guide mechanism 80 and the first hydraulic cylinder 86 are referred to as a vertical drive mechanism 90 that drives the blade 40 in the vertical direction.

  One end of a second hydraulic cylinder 88 is connected to the center of the back surface of the lower plate 46. The other end of the second hydraulic cylinder 88 is connected to the frame 12. For this reason, the blade unit 22 can be moved in the horizontal direction by expanding and contracting the second hydraulic cylinder 88. Hereinafter, the horizontal linear guide mechanism 82 and the second hydraulic cylinder 88 are referred to as a horizontal drive mechanism 92 that drives the blade 40 in the horizontal direction.

  A hook 103 is attached to the block 62. A hook 104 is attached to the left end of the lower plate 46. The hook 103 and the hook 104 are respectively engaged with both ends of the coil spring 102. By providing the coil spring 102 in this way, a force for lifting the blade unit 22 is given, and the first hydraulic cylinder 86 assists the driving force when the blade unit 22 is driven upward.

  The cutting apparatus 10 includes an electronic control unit (not shown) having a CPU that executes various arithmetic processes, a ROM that stores various control programs, a RAM that is used as a work area for data storage and program execution, and the like. Have. The electronic control unit controls the operations of the vertical drive mechanism 90 and the horizontal drive mechanism 92 by controlling the operations of the first hydraulic cylinder 86 and the second hydraulic cylinder 88, respectively. In the first embodiment, the electronic control unit drives the blade 40 with both the vertical drive mechanism 90 and the horizontal drive mechanism 92 to cause the blade 40 to cut the sheet bundle. A detailed driving method of the blade 40 will be described later.

  The right position sensor 120 is fixed to the upper right portion of the frame 12. A left position sensor 122 is fixed to the upper left portion of the frame 12. The right position sensor 120 detects that the cutting tool 40 has reached the allowable rightmost position by detecting the upper right guide unit 24. The left position sensor 122 detects that the blade 40 has reached the allowable leftmost position by detecting the upper left guide unit 26.

  An upper position sensor 116 and a lower position sensor 118 are fixed above the frame 12. The upper position sensor 116 is disposed above the lower position sensor 118. The upper position sensor 116 detects that the blade 40 has reached the uppermost position allowed by detecting the upper end of the upper plate 44. The lower position sensor 118 detects that the blade 40 has reached the lowest position allowed by detecting the upper end of the upper plate 44.

  A cutting table 124 is disposed in the lower center of the frame 12 so as to spread horizontally. On the upper surface of the cutting table 124, a placement surface 124a on which a sheet bundle is to be placed is provided.

  A vertically extending guide bar 98 is fixed to the right side of the back surface of the center plate 42. A guide block 94 is fixed to the right side of the cutting table 124 so as to contact the back surface of the guide bar 98. A guide bar 100 extending vertically is fixed to the left side of the back surface of the center plate 42. A guide block 96 is fixed to the left side of the cutting table 124 so as to contact the back surface of the guide bar 100. When the blade 40 moves vertically and horizontally, each of the guide bar 98 and the guide bar 100 slides with the guide block 94 and the guide block 96, respectively, and restricts the movement of the blade 40 in the front-rear direction.

  FIG. 3 is a rear view of the cutting apparatus 10 according to the first embodiment as viewed from the viewpoint Q of FIG. The sheet pressing mechanism 20 includes a pressing member 130, a relay member 132, a connecting member 134, a third hydraulic cylinder 136, and a linear guide 140. The pressing member 130 is formed in a shape obtained by bending a flat plate into an L shape. The pressing member 130 is disposed such that one outer surface faces downward. The outer surface facing downward is a pressing surface 130 a that presses the sheet bundle against the mounting surface 124 a of the cutting table 124.

  The third hydraulic cylinder 136 is fixed to the upper part of the frame 12. The relay member 132 and the connecting member 134 connect the pressing member 130 and the third hydraulic cylinder 136. The linear guide 140 guides the pressing member 130 to move in the vertical direction. Specifically, the linear guide 140 includes a rail 142 and a guide 144. The rail 142 is fixed to both the pressing member 130 and the relay member 132 so as to extend in the vertical direction. The rail 142 is fixed to the frame 12 facing the pressing member 130. The guide 144 is provided with a recess in which the rail 142 is slidably fitted. When the rail 142 is fitted into the guide 144, the linear guide 140 guides the pressing member 130 to move in the vertical direction.

  As described above, when the third hydraulic cylinder 136 expands and contracts, the pressing member 130 is driven in the vertical direction. Specifically, when the third hydraulic cylinder 136 is extended, the pressing member 130 is lowered to press the sheet bundle placed on the placement surface 124a of the cutting table 124 downward. When the third hydraulic cylinder 136 contracts, the pressing member 130 rises, and the pressing force against the sheet bundle is released.

  4 is a left side view of the cutting apparatus 10 according to the first embodiment as viewed from the viewpoint R of FIG. The table unit 16 includes a mounting table 170, a support bracket 172, a fixing mechanism 174, and a rotating mechanism 176. The placement table 170 has a placement surface 170a on which a sheet bundle is placed. The mounting table 170 is supported by the support bracket 172 so as to be rotatable about an axis perpendicular to the mounting surface 170a.

  The fixing mechanism 174 functions as a fixing unit that fixes the periphery of any edge of the sheet bundle placed on the placement table 170 to the placement table 170. The fixing mechanism 174 is provided on the upper surface around one end edge of the mounting table 170. The fixing mechanism 174 includes a clamper 180, a rod 182, an air cylinder 184, and a positioning pin 186. Two positioning pins 186 are arranged in parallel on the upper surface of one end edge of the mounting table 170 in parallel to the one end edge. The positioning pin 186 functions as a positioning member that regulates the position in one direction of the sheet bundle placed on the placement table 170. When the booklet is placed on the placement table 170, the booklet spine is abutted against the positioning pin 186 and positioned.

  The air cylinder 184 is disposed between the positioning pin 186 and one end edge of the mounting table 170. The rod 182 extends vertically upward from the air cylinder 184. The air cylinder 184 moves the rod 182 in the axial direction, that is, in the vertical direction. The clamper 180 has an L-shaped cross section, and one inner surface is fixed to the upper end of the rod 182. As described above, when the air cylinder 184 contracts, the clamper 180 moves down together with the rod 182, and the sheet bundle placed on the placement table 170 is pressed downward and fixed. Therefore, when the booklet is placed on the placement table 170, the fixing mechanism 174 fixes the periphery of the booklet back.

  The table moving mechanism 18 includes a frame 200, a ball screw 202, and a motor 204. The frame 200 is provided so as to extend in the front-rear direction (hereinafter simply referred to as “front-rear direction”) of the cutting apparatus 10. The frame 200 is provided with a guide (not shown) extending in the front-rear direction, and the support bracket 172 of the table unit 16 is slidably supported by the guide. The frame 200 thus supports the entire table unit 16 so that the placement surface 170a of the placement table 170 becomes horizontal and can slide in the front-rear direction.

  The ball screw 202 is disposed so as to extend in the front-rear direction and is rotatably supported by the frame 200. The support bracket 172 is provided with a female screw portion (not shown) that meshes with the ball screw 202, and the entire table unit 16 can be moved in the front-rear direction when the ball screw 202 rotates. A motor 204 is fixed to the rear portion of the frame 200. The motor 204 is connected to one end of the ball screw 202 so as to drive the ball screw 202. The electronic control unit controls the movement of the table unit 16 in the front-rear direction by controlling the operation of the motor 204.

  The rotation mechanism 176 rotates the mounting table 170 around an axis perpendicular to the mounting surface 170a. A specific configuration of the mounting table 170 will be described later. The rotation mechanism 176 rotates the mounting table 170 to switch the position in the circumferential direction so as to switch the portion to be cut during each cutting timing when cutting a plurality of locations of a single sheet bundle a plurality of times. When the booklet is placed on the placement table 170, the electronic control unit and the rotation mechanism 176 are positioned in the circumferential direction of the placement table 170 so that the blade 40 cuts and trims the booklet in the order of one of the top, the bottom, and the other. Switch sequentially.

  Fig.5 (a) is a figure which shows the relationship between the booklet 2, the fixing mechanism 174, and the blade edge | tip moving surface L1 when cutting one side of the top and bottom. The blade 40 is movably provided to cut the sheet bundle. The moving path of the blade edge of the blade 40 at this time is defined as a blade edge moving surface L1. The booklet 2 is cut along the blade edge moving surface L1 by the blade 40.

  In this example, when the circumferential direction position of the mounting table 170 is held so that the fixing mechanism 174 is positioned on the right, the top 2c that is an adjacent edge in contact with the spine 2a fixed to the fixing mechanism 174 is forward. It is assumed that the booklet 2 is fixed to the placement table 170 so that the ground 2d that is another adjacent edge is located rearward. At this time, the fore edge 2b which is the back edge of the back 2a is located on the left side. The directions of the top 2c and the ground 2d may be reversed.

  When the booklet placed on the placement table 170 is first cut, the electronic control unit rotates the placement table 170 using the rotation mechanism 176 so that the fixing mechanism 174 is positioned on the right side of the booklet. For this reason, the top 2c exceeds the cutting edge moving surface L1, and the top 2c is the first cutting target.

  FIG.5 (b) is a figure which shows the cutting mechanism 14 when the cutter 40 exists in an initial position to cut one side of the top and bottom. When the electronic control unit cuts and removes the top 2c or the ground 2d, the vertical drive mechanism 90 and the horizontal drive mechanism 92 are arranged so as to cut the sheet bundle by moving the blade 40 in the direction from the back 2a toward the fore edge 2b. Control each operation. For this reason, the electronic control unit holds the cutter 40 at the right initial position on the back 2a side from the center position before cutting the booklet 2, that is, when the cutter 40 is above the booklet 2. In the first embodiment, the initial position is when the blade 40 is in the uppermost position and the rightmost position.

  FIG.5 (c) is a figure which shows the cutting mechanism 14 when the cutter 40 descend | falls to the lowered position so that one of the top and bottom may be cut. The electronic control unit controls the operation of the vertical drive mechanism 90 and the horizontal drive mechanism 92 so as to lower the blade 40 while moving from the back 2a toward the fore edge 2b, that is, from right to left. In the first embodiment, the blade 40 is linearly moved toward the lowest position and the leftmost position. By lowering the blade 40 while moving from the spine 2a toward the fore edge 2b in this way, it is possible to suppress a decrease in the beauty of the booklet 2 after cutting.

  FIG. 6A is a diagram illustrating a relationship between the booklet 2, the fixing mechanism 174, and the blade edge moving surface L1 when cutting the fore edge. When the booklet placed on the placement table 170 is cut next, the electronic control unit rotates the placement table 170 using the rotation mechanism 176 so that the fixing mechanism 174 is positioned behind the booklet. For this reason, the fore edge 2b exceeds the cutting edge moving surface L1, and the fore edge 2b becomes the next cutting object.

  FIG. 6B is a view showing the cutting mechanism 14 when the blade 40 is in the initial position to cut the fore edge. In the first embodiment, when cutting the fore edge 2b, the blade 40 is lowered while moving from the right to the left. For this reason, the electronic control unit holds the blade 40 at an initial position above the booklet 2 and on the right of the center position before cutting the fore edge 2b, similarly to before cutting the top 2c. In the first embodiment, the initial position is when the blade 40 is in the uppermost position and the rightmost position.

  In order to hold the blade 40 in this initial position, the electronic control unit 90 moves the blade 40 to the initial position where movement should be started in the cutting process of the fore edge 2b after the cutting process of the top 2c. And the operation of each of the horizontal drive mechanisms 92 is controlled. At this time, the electronic control unit linearly moves the blade 40 from the position shown in FIG. 5C to the position shown in FIG.

  FIG.6 (c) is a figure which shows the cutting mechanism 14 when the blade 40 descend | falls to a lowered position to cut a fore edge. The electronic control unit controls the operations of the vertical drive mechanism 90 and the horizontal drive mechanism 92 so as to lower the blade 40 while moving it from the right to the left. Thus, even when cutting the edge 2b, the aesthetic loss of the booklet 2 after cutting can be suppressed by moving the blade 40 diagonally. In the first embodiment, the blade 40 is linearly moved toward the lowest position and the leftmost position.

  The electronic control unit may control the operations of the vertical drive mechanism 90 and the horizontal drive mechanism 92 so as to lower the blade 40 while moving it from the left to the right. In this case, the electronic control unit holds the blade 40 at an initial position above the booklet 2 and to the left of the center position before cutting the fore edge 2b. In the first embodiment, the initial position is when the blade 40 is at the uppermost position and the leftmost position.

  Fig.7 (a) is a figure which shows the relationship between the booklet 2, the fixing mechanism 174, and the blade edge | tip moving surface L1 when cutting the other top and bottom. When the booklet placed on the placement table 170 is cut next, the electronic control unit rotates the placement table 170 using the rotation mechanism 176 so that the fixing mechanism 174 is positioned on the left side of the booklet. For this reason, the ground 2d exceeds the cutting edge moving surface L1, and the ground 2d becomes the next cutting object.

  FIG. 7B is a diagram showing the cutting mechanism 14 when the blade 40 is in the initial position to cut the other of the top and bottom. The electronic control unit moves the blade 40 in the direction from the spine 2a toward the fore edge 2b and cuts the sheet bundle before cutting the booklet 2, that is, when the blade 40 is above the booklet 2, The blade 40 is held at the initial position on the left side of the back 2a from the position.

  In order to hold the cutter 40 in this initial position, the electronic control unit 90 moves the cutter 40 to the initial position where movement should be started in the cutting process of the ground 2d after the cutting process of the edge 2b. And the operation of each of the horizontal drive mechanisms 92 is controlled. At this time, the electronic control unit linearly moves the blade 40 from the position shown in FIG. 6C to the position shown in FIG.

  As described above, when the electronic control unit proceeds to the second step of cutting the sheet bundle by moving the blade 40 in the direction different from the first step after the first step of cutting the sheet bundle, the first step is performed. After the above process is completed, the operations of the vertical drive mechanism 90 and the horizontal drive mechanism 92 are controlled so that the blade 40 is moved to the initial position where the movement is to be started in the second process and waits. As a result, it is possible to promptly proceed to the next step of cutting the sheet bundle.

  FIG.7 (c) is a figure which shows the cutting mechanism 14 when the blade 40 descend | falls to the lowered position so that the other top and bottom may be cut. The electronic control unit controls the operations of the vertical drive mechanism 90 and the horizontal drive mechanism 92 so as to lower the blade 40 while moving the blade 40 from the left to the right, that is, in the direction from the back 2a to the fore edge 2b. In the first embodiment, the blade 40 is moved linearly toward the lowest position and the rightmost position.

  As described above, when the mounting table 170 is held at the first circumferential position where one of the top and bottom is to be cut, the electronic control unit rotates the circumferential position 180 degrees from the first circumferential position, that is, the top and bottom. When the mounting table 170 is held at the second circumferential position where the other of the paper sheets is to be cut, the blade 40 is moved in a direction in which the moving direction parallel to the paper surface of the paper bundle is opposite to the paper bundle. The operation of each of the vertical drive mechanism 90 and the horizontal drive mechanism 92 is controlled so as to cut the line. When the placement table 170 rotates and switches the position of the booklet 2 to cut the top and bottom of the booklet 2, the direction from the back 2a to the fore edge 2b differs between when cutting the top 2c and when cutting the ground 2d. It will be. Thereby, when cutting the top 2c or the ground 2d, the cutting tool 40 can be cut while appropriately moving from the spine 2a toward the fore edge 2b.

  Further, in this way, the electronic control unit has a direction different from that when the mounting table 170 is held at the second circumferential position when the mounting table 170 is held at the first circumferential position. The operation of each of the vertical drive mechanism 90 and the horizontal drive mechanism 92 is controlled so that the blade 40 is moved to cut the sheet bundle. Thereby, the fall of the aesthetics of the booklet 2 after cutting can be suppressed appropriately.

  FIG. 8 is a view of the table unit 16 as viewed from the viewpoint S of FIG. The rotation mechanism 176 is provided in the middle of the placement table 170 when it moves between the cutting position and the retracted position. The rotation mechanism 176 includes a sprocket 220, a chain 222, and a meshing switching mechanism 224. The sprocket 220 is connected to the mounting table 170 so as to move and rotate together with the mounting table 170. Accordingly, the sprocket 220 functions as a rotating member that rotates together with the mounting table 170. The chain 222 functions as a meshing member that meshes with the sprocket 220. The chain 222 is arranged to rotate the mounting table 170 by meshing with the sprocket 220 during the movement of the mounting table 170.

  The table moving mechanism 18 moves the placement table 170 between a cutting position at which the placed sheet bundle is to be cut and a retreat position that is further away from the blade edge moving surface L1 than the cutting position. In the mesh switching mechanism 224, the placement table 170 moves between the meshing position that engages with the sprocket 220, the cutting position, and the withdrawal position when the placement table 170 moves between the cutting position and the withdrawal position. However, the chain 222 is moved back and forth between the non-engagement position where it does not mesh with the sprocket 220.

  Specifically, the mesh switching mechanism 224 includes an air cylinder 226, a rod 228, a slider 230, and a rail 232. The sliders 230 are fixed to both ends of the rod 228, respectively. The pair of sliders 230 are fixed vertically to the rod 228 so as to be parallel to each other.

  A pair of rails 232 are provided so as to be slidably fitted to each of the pair of sliders 230. The pair of rails 232 are fixed to the frame 200 of the table moving mechanism 18. At this time, the rail 232 is attached to the frame 200 so as to be perpendicular to the moving direction of the table unit 16 in order to slide the slider 230 perpendicular to the moving direction of the table unit 16.

  The end of the chain 222 is fixed to the tip of each of the pair of sliders 230. The rod 228 is connected to the air cylinder 226. As described above, by extending the air cylinder 226 when the sprocket 220 passes in the vicinity of the mesh switching mechanism 224, the mounting table 170 can be rotated by meshing the chain 222 with the sprocket 220.

  As described above, the rotation mechanism 176 rotates the mounting table 170 using the force by which the mounting table 170 moves. Since a heavy booklet or the like may be placed on the placement table 170, if a drive source for rotating the placement table 170 is separately provided, it is difficult to reduce the size of the drive source. According to the rotation mechanism 176 according to the first embodiment, it is possible to reduce the cost as compared with a case where a drive source for rotating the mounting table 170 is separately provided.

  The table moving mechanism 18 includes a cutting position sensor 240 and a retracted position sensor 242. The cutting position sensor 240 detects that the placement table 170 has advanced to a cutting position where the placed sheet bundle should be cut when the support bracket 172 of the table unit 16 contacts the cutting position sensor 240. . The retreat position sensor 242 detects that the placement table 170 has retreated to a retreat position that is farther from the cutting edge moving surface L1 than the cutting position when the support bracket 172 contacts the retraction position sensor 242. The detection results of the cutting position sensor 240 and the retracted position sensor 242 are input to the electronic control unit.

  FIG. 9 is an enlarged view around the table unit 16 of FIG. The rotation mechanism 176 further includes a lock mechanism 250. The lock mechanism 250 includes a positioning rotor 252, a positioning pin 254, and an air cylinder 256.

  The positioning rotor 252 is formed in a disk shape and is fixed to the sprocket 220 so as to be coaxial with the sprocket 220. On the outer periphery of the positioning rotor 252, there are provided three cutout portions 252 a provided so that the circumferential interval is an angle of 90 °. The positioning pin 254 has one end facing the outer periphery of the positioning rotor 252 and the other end connected to the air cylinder 256. The air cylinder 256 is fixed to the support bracket 172.

  Therefore, when the air cylinder 256 is extended, the positioning pin 254 advances toward the outer periphery of the positioning rotor 252. The positioning rotor 252 is locked at a position where the positioning pin 254 is fitted into the notch 252a. Thus, the lock mechanism 250 locks the rotating mounting table 170 at a predetermined circumferential position.

  In the first embodiment, the notch 252a is located at a position where the rotation of the mounting table 170 is locked at the circumferential position shown in each of FIGS. 5 (a), 6 (a), and 7 (a). Is provided. In this way, the rotation mechanism 176 rotates the placement table 170 so as to switch the portion of the sheet bundle placed on the placement table 170 to be cut while retracted from the cutting position to the retracted position and advanced again to the cutting position. Of course, the circumferential position of the mounting table 170 locked by the locking mechanism 250 is not limited to these.

  The electronic control unit advances the positioning pin 254 at the timing when the notch portion 252a to be fitted faces the positioning pin 254, and retracts the chain 222 from the sprocket 220. However, in consideration of the case where the retraction timing of the chain 222 is delayed from the advance timing of the positioning pin 254, the sprocket 220 is connected to the mounting table 170 via a torque limiter (not shown). For this reason, the sprocket 220 is provided to rotate idly with respect to the mounting table 170 when the mounting table 170 is locked by the lock mechanism 250 while meshing with the chain 222 and rotating. Thereby, the situation where the movement of the table unit 16 stops when the positioning pin 254 is fitted to the positioning rotor 252 can be avoided.

  Further, the mounting table 170 is supported by the support bracket 172 via the biasing support mechanism 270. The biasing support mechanism 270 includes a flange 272, a piston 274, a cylinder 276, a flange 278, and a coil spring 280. The flange 272 is formed in a disc shape and is fixed to the lower surface of the mounting table 170 so as to be coaxial with the rotation axis of the mounting table 170. The piston 274 is formed in a columnar shape having a smaller diameter than the flange 272, and one end is fixed to the lower surface of the flange 272 so as to be coaxial with the flange 272.

  The cylinder 276 is provided in a bottomed cylindrical shape having an inner diameter substantially the same as the outer diameter of the piston 274. The flange 278 is provided so as to protrude outward from the upper end of the cylinder 276. The coil spring 280 that is an urging means is disposed between the flange 272 and the flange 278 and applies an urging force to the two in a direction in which they are separated from each other. Thereby, the placing table 170 is moved between the cutting position and the retracted position by the table moving mechanism 18 in a lifted state.

  FIG. 10A is a diagram showing the operation of the mounting table 170 when moving from the retracted position P2 to the cutting position P1 to cut one of the top and bottom. Hereinafter, FIG. 10A, FIG. 10B, FIG. 11A, FIG. 11B, FIG. 12A, and FIG. 12B show the mounting table 170 viewed from below. Show. As shown on the left side of FIG. 10A, the circumferential position of the mounting table 170 when the clamper 180 as a pressing member for pressing the booklet 2 is positioned on the right side of the apparatus is the initial position before cutting. This is referred to as a “first circumferential position”. When the placement table 170 is at the retracted position P <b> 2, the booklet 2 to be cut at this first circumferential position is placed on the placement surface 170 a and fixed by the clamper 180.

  When the booklet 2 placed on the placement table 170 is fixed by the clamper 180, the electronic control unit causes the table moving mechanism 18 to move the placement table 170 from the retracted position P2 to the cutting position P1. At this time, the electronic control unit holds the chain 222 in the non-meshing position and does not advance the meshing position. For this reason, the mounting table 170 advances to the cutting position P1 while maintaining the first circumferential position.

  FIG. 10B is a diagram illustrating the operation of the mounting table 170 when the top and bottom sides are cut and then retracted from the cutting position P1 to the retracted position P2. When the cutting of the top 2c is completed, the electronic control unit retracts the placement table 170 from the cutting position P1 to the retracted position P2. Also at this time, the electronic control unit holds the chain 222 in the non-meshing position and does not advance to the meshing position. For this reason, the mounting table 170 is retracted to the retracted position P2 while maintaining the first circumferential position.

  FIG. 11A is a diagram illustrating the operation of the mounting table 170 when moving from the retracted position P2 to the cutting position P1 to cut the fore edge. When the mounting table 170 moves to the retracted position P2, the electronic control unit moves the mounting table 170 again toward the cutting position P1. At this time, the electronic control unit advances the chain 222 to the meshing position so as to rotate the mounting table 170 by 90 °, and retracts it again to the non-meshing position. The position rotated 90 ° from the first circumferential position in this way is referred to as a “second circumferential position”. The placement table 170 advances to the cutting position P1 at the second circumferential position. Thereby, the fore edge 2b reaches the blade edge moving surface L1.

  FIG. 11B shows the operation of the mounting table 170 when the fore edge is cut and then retracted from the cutting position P1 to the retracted position P2. When the cutting of the fore edge 2b is completed, the electronic control unit retreats the placement table 170 from the cutting position P1 to the retreat position P2. At this time, the electronic control unit holds the chain 222 in the non-meshing position and does not advance the meshing position. For this reason, the mounting table 170 is retracted to the retracted position P2 while maintaining the second circumferential position.

  FIG. 12A is a diagram illustrating the operation of the mounting table 170 when moving from the retracted position P2 to the cutting position P1 to cut the other of the top and bottom. When the mounting table 170 moves to the retracted position P2, the electronic control unit moves the mounting table 170 again toward the cutting position P1. At this time, the electronic control unit advances the chain 222 to the meshing position so as to rotate the mounting table 170 again by 90 °, and retracts it again to the non-meshing position. The position rotated 90 ° from the second circumferential position in this way is defined as a “third circumferential position”. The mounting table 170 advances to the cutting position P1 at the third circumferential position. Thereby, the ground 2d reaches the cutting edge moving surface L1.

  FIG. 12B is a diagram illustrating the operation of the mounting table 170 when the other of the top and bottom is cut and then retracted from the cutting position P1 to the retracted position P2. When the cutting of the ground 2d is completed, the electronic control unit retreats the mounting table 170 from the cutting position P1 to the retreat position P2. At this time, the electronic control unit advances the chain 222 to the meshing position so as to rotate the mounting table 170 by 180 ° in the reverse direction and retracts the chain 222 to the non-meshing position again. As a result, the mounting table 170 is returned to the first circumferential position again. The electronic control unit performs a cutting process on each of the plurality of booklets 2 by repeating the same operation thereafter.

  FIG. 13 is a right side view of the cutting apparatus 10. FIG. 14 is a perspective view showing the back surface of the cutting apparatus 10. The cutting table 124 has a mounting surface 124a on which a portion of the sheet bundle mounted on the mounting table 170 that protrudes from the mounting table 170 is mounted when the mounting table 170 is in the cutting position. Further, the cutting table 124 has a recess 124b for accommodating the mounting table 170 when in the cutting position. The recess 124b is formed such that the rear center of the cutting table 124 is cut off.

  The guide roller 150, which is a guide member, guides the portion of the sheet bundle placed on the placement table 170 that protrudes from the placement table 170 to the placement surface 124a while the placement table 170 is moving. For example, when a sheet bundle having a large sheet size is placed on the placement table 170, the portion that protrudes from the placement table 170 may drop drastically. In this way, when the placement table 170 is moved from the retracted position to the cutting position while the sheet bundle is drooping greatly, the suspended portion hits the rear part of the cutting table 124, and the sheet bundle is appropriately placed above the placement surface 124a. In some cases, it may not be possible to transport the product. By providing the guide roller 150 in this manner, even in such a case, it is possible to appropriately avoid the situation where the protruding portion of the booklet hits the cutting table.

  FIG. 15A is a left side view of the cutting apparatus 10 according to the first embodiment when the placement table 170 is at the retracted position P2. The coil spring 280 urges and lifts the mounting table 170 so that the mounting surface 170 a becomes higher than the mounting surface 124 a during the movement of the mounting table 170.

  FIG. 15B is a left side view of the cutting apparatus 10 according to the first embodiment when the mounting table 170 has advanced to the cutting position P1. Since the placement table 170 is lifted in this manner, even when a portion of the booklet 2 placed on the placement table 170 that protrudes from the placement table 170 hangs down, the portion strikes the cutting table 124. You can avoid that.

  FIG. 15C is a left side view of the cutting apparatus 10 according to the first embodiment when the booklet 2 is pressed by the pressing member 130 when the placement table 170 is held at the cutting position P1. is there. The pressing member 130 moves the placement table 170 toward the placement surface 124a when the placement table 170 is in the cutting position, so that a portion of the sheet bundle placed on the placement table 170 is protruded from the placement table 170. Press against the cutting table 124. At this time, the pressing member 130 lowers the placement table 170 against the urging force of the coil spring 280 by the force pressing the sheet bundle against the cutting table 124.

  Thus, by lowering the mounting table 170 using the pressing force of the pressing member 130, it is not necessary to separately provide a drive source for lowering the mounting table 170, so that the configuration of the apparatus is simplified. And an increase in cost due to lifting the mounting table 170 can be suppressed.

  FIG. 16 is a diagram illustrating a region pressed by the pressing member 130. FIG. 16 shows a state in which the cutting table 124 is viewed from above when the mounting table 170 is in the cutting position. By forming the concave portion 124b in this way, the placement surface 124a is at the cutting position within the region around the placement table 170 except the movement path of the placement table 170 at the cutting position. It is formed so as to surround the mounting table 170 at a certain time. By forming the placement surface 124a in this way, a portion of the sheet bundle placed on the placement table 170 that protrudes from the placement table 170 can be placed on the placement surface 124a in a wide range. Thus, the bending of the sheet bundle can be suppressed.

  The pressing surface 130 a of the pressing member 130 loads the booklet 2 in a region between the mounting table 170 and the blade edge moving surface L <b> 1, a region above the mounting table 170, and a region in the left-right direction from the mounting table 170. It is provided so as to be pressed against the placement surface 124a. Thereby, the booklet 2 can be appropriately fixed while lowering the placement table 170.

(Second Embodiment)
FIG. 17A is a left side view of the cutting apparatus according to the second embodiment when the placement table 170 is at the retracted position P2. The cutting apparatus according to the second embodiment is configured in the same manner as the cutting apparatus 10 according to the first embodiment, except that the center pressing unit 300 is provided. Hereinafter, the same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  The central pressing unit 300 includes a support member 302, a pressing member 304, and a coil spring 306. The support member 302 is an L-shaped member, and one end is fixed to the back surface of the pressing member 130 so that the rear portion protrudes downward. A pressing member 304 is attached to the lower end of the rear portion of the support member 302 via a coil spring 306. The pressing member 304 is formed in a rectangular parallelepiped shape, and has a pressing surface 304 a that presses the booklet 2 downward on the lower surface.

  The pressing member 304 is disposed such that the pressing surface 304 a is positioned behind the apparatus with respect to the pressing surface 130 a of the pressing member 130. Further, the pressing member 304 is suspended by the support member 302 via the coil spring 306 so that the pressing surface 304 a is positioned below the pressing surface 130 a of the pressing member 130 when the booklet 2 is not pressed.

  FIG. 17B is a left side view of the cutting apparatus according to the second embodiment when the placement table 170 has advanced to the cutting position P1. At this time, the pressing member 304 is positioned such that the center of the pressing surface 304 a overlaps the center of the piston 274, that is, the rotation axis of the mounting table 170.

  FIG. 17C is a left side view of the cutting apparatus according to the second embodiment when the booklet 2 is pressed by the pressing member 130 when the placement table 170 is held at the cutting position P1. . FIG. 18 is a diagram illustrating a region pressed by the pressing member 130 and the other pressing member 304. When the pressing member 130 is lowered, the booklet 2 is first pressed downward by the pressing surface 304 a of the pressing member 304. Next, the coil spring 306 contracts and the booklet 2 is pressed downward by both the pressing member 304 and the pressing member 130. Eventually, the booklet 2 is gripped by the cutting table 124 and the pressing member 130.

  In this way, when the pressing member 130 presses the portion of the booklet 2 placed on the placement table 170 that protrudes from the placement table 170 against the cutting table 124, the pressure member 304 is placed on the placement table 170. The placement table 170 is lowered by pressing downward the portion of the booklet 2 that includes the rotation center of the placement table 170. Since the pressing member 304 presses the rotation center of the mounting table 170, that is, the center of the piston 274 downward, it is possible to suppress the occurrence of galling between the piston 274 and the cylinder 276, and to smoothly lower the booklet 2. be able to.

  Note that the support member 302 and the coil spring 306 may be omitted, and the pressing member 304 may be formed integrally with the pressing member 130. At this time, the pressing member 304 and the pressing member 130 may be configured so that the pressing surface 304a and the pressing surface 130a are positioned on the same plane. Also by this, the mounting table 170 can be smoothly lowered.

(Third embodiment)
FIG. 19 is a diagram illustrating a configuration of an initial position detection mechanism 400 according to the third embodiment. FIG. 19 shows a state where the table unit 16 and the table moving mechanism 18 are viewed from the viewpoint S of FIG. Hereinafter, the same parts as those in the above-described embodiment are denoted by the same reference numerals and description thereof is omitted.

  For example, it may be difficult for the device to grasp the circumferential position of the mounting table 170 between the cutting position and the retracted position for some reason, such as when the power is turned off. In such a case, it is necessary to properly grasp the position of the mounting table 170 again. For this reason, the cutting apparatus according to the third embodiment is provided with an initial position detection mechanism 400. Except for the provision of the initial position detection mechanism 400, the configuration of the cutting apparatus according to the third embodiment is the same as the cutting apparatus according to any of the above-described embodiments.

  The initial position detection mechanism 400 includes a detected member 404, an optical sensor 406, a detected member 410, and an optical sensor 412. The detected member 404 is fixed to the mounting table 170 so as to rotate together with the mounting table 170. The optical sensor 406 detects the position (circumferential position) in the rotation direction of the mounting table 170 by detecting the detected member 404.

  Specifically, the detected member 404 has a protruding portion 404 a that protrudes radially outward with respect to the rotation center of the mounting table 170. The optical sensor 406 includes a light emitting element and a light receiving element, and one is arranged in front of the apparatus and the other is arranged in the rear of the apparatus. The optical sensor 406 is arranged so that the detection line X, which is a target portion where light shielding should be detected, is parallel to the moving direction of the mounting table 170. The detected member 404 is provided such that the protruding portion 404a advances and retreats to the detection line X with the rotation of the mounting table 170 when the chain 222 is advanced and meshed with the sprocket 220. The optical sensor 406 detects the protrusion 404a by blocking light passing through the detection line X when the protrusion 404a advances into the detection line X. The optical sensor 406 detects the circumferential position of the mounting table 170 by detecting the protruding portion 404a that the detected member 404 has rotated and reaches the detection line X.

  For example, when a sensor for detecting a circumferential position is provided on the mounting table 170, it is necessary to secure a movement space for the sensor cable accompanying the movement of the mounting table 170. For this reason, in the initial position detection mechanism 400, only the detected member 404 is provided on the table unit 16 on which the placement table 170 is mounted, and the optical sensor 406 is attached to the frame 200. Thus, it is necessary to consider that the cable for connecting to the sensor moves together with the mounting table 170 by avoiding mounting the sensor for detecting the circumferential position of the mounting table 170 on the table unit 16. Disappear. For this reason, the space which the cable connected to a sensor occupies can be suppressed, and size reduction or cost reduction of an apparatus can be realized.

  The optical sensor 412 is attached to a support member fixed to the frame 200. The detected member 410 is attached to the support bracket 172 of the table unit 16. The optical sensor 412 is provided so as to detect the detected member 410 when the placement table 170 moves to a certain position. Hereinafter, the position of the mounting table 170 when the detected member 410 is detected by the optical sensor 412 is referred to as “origin”. Therefore, the optical sensor 412 functions as an origin sensor that detects the origin position of the mounting table 170.

  FIG. 20 is a flowchart showing a procedure of initialization processing by the initial position detection mechanism 400 according to the third embodiment. The processing in this flowchart is repeatedly executed every processing time after the start button is pressed by the user in the cutting device 10 and the cutting processing is started until the cutting processing is stopped or interrupted.

  The electronic control unit determines whether or not an initialization process is necessary (S10). The case where the initialization process is necessary is, for example, when the device door is opened by the user during the cutting process, the electronic control unit interrupts the cutting process, and then the door is closed and the electronic control unit resumes the cutting process. In addition, a case where a power failure or a user power is turned off by the user during the cutting process and the power is turned on again is applicable. Of course, the case where the initialization process is necessary is not limited to these cases, and the initialization process is also performed in other cases where the electronic control unit cannot recognize the circumferential position of the mounting table 170 during the cutting process. Necessary. If the initialization process is not necessary (N in S10), the process in this flowchart is terminated.

  When the initialization process is necessary (Y in S10), the electronic control unit moves the placement table 170 to the origin (S12). When the placement table 170 moves to the origin, the electronic control unit places the chain 222 in the direction toward the cutting position P1 (hereinafter referred to as “advance direction”) toward the engagement start position where the chain 222 starts to engage with the sprocket 220. The table 170 is moved (S14).

  When the mounting table 170 is moved to the meshing start position, the electronic control unit advances the chain 222 to mesh with the sprocket 220 (S16). At this time, since the mounting table 170 continues to move in the advance direction, the mounting table 170 and the detected member 404 start to rotate.

  The electronic control unit determines whether the protruding portion 404a is detected by the optical sensor 406 (S18). When the protrusion 404a is not detected (N in S18), the electronic control unit determines whether or not the rotation angle of the mounting table 170 from the meshing start position has reached 90 degrees (S26). (N of S26), it returns to the determination of S18. In this way, the electronic control unit finishes meshing while the placement table 170 is rotated 90 degrees, that is, the placement table 170 is retracted from the sprocket 220 and the rotation of the placement table 170 is stopped by retracting the chain 222 from the sprocket 220. While moving to the position, the determination of S18 is repeated every predetermined time. In the third embodiment, since the mounting table 170 rotates 90 degrees during this one step, the protrusion 404a is detected by the optical sensor 406 during at most four steps.

  When the rotation angle of the mounting table 170 reaches 90 degrees (Y in S26), the electronic control unit retracts the chain 222 immediately after stopping the movement of the mounting table 170 in the advance direction. The rotation of 170 is stopped (S28), and the process returns to S12. That is, the mounting table 170 is returned to the meshing start position, the chain 222 is advanced and meshed with the sprocket 220, and the mounting table 170 is moved in the advanced direction until the meshing end position is reached. It is determined whether or not the protrusion 404a is detected by the optical sensor 406 while rotating the table 170. The electronic control unit repeats this process until the protruding portion 404a is detected by the optical sensor 406.

  When the protruding portion 404a is detected (Y in S18), the electronic control unit continues to move the mounting table 170 in the advance direction even after the detection of the protruding portion 404a, and is placed so as to be positioned at the first circumferential position. The angle of the table 170 is finely adjusted (S20). When the mounting table 170 is located at the first circumferential position, the electronic control unit retracts the chain 222 (S22), moves the mounting table 170 in the retracting direction, and moves it to the origin (S24).

  FIG. 21 schematically shows the movement of the detected member 404 when the initialization process according to the third embodiment is executed. FIG. 21 shows a state in which the detected member 404 is viewed from below as in FIG. In FIG. 21, the origin is indicated as “P10”, the engagement start position as “P11”, the engagement end position as “P12”, and the detection line by the optical sensor 406 as “X”.

  If it is determined that the initialization process is required, the electronic control unit moves the placement table 170 (that is, the detected member 404) to the origin P10 and moves the detected member 404 in the advance direction as shown in FIG. Move. When the detected member 404 reaches the meshing start position P11, the electronic control unit advances the chain 222 to mesh with the sprocket 220. The electronic control unit continues to move the detected member 404 in the advancing direction as shown in (b), whereby the detected member 404 starts to rotate.

  The electronic control unit monitors whether the protruding portion 404a is detected by the optical sensor 406 while the detected member 404 moves from the meshing start position P11 to the meshing end position P12 while rotating. In the example shown in FIG. 21, as shown in (c), the protrusion 404 a does not reach the detection line X while the detected member 404 moves from the engagement start position P11 to the engagement end position P12 for the first time. For this reason, the electronic control unit stops the movement of the detected member 404 at the engagement end position P12 and also retracts the chain 222 to release the engagement with the sprocket 220. This time, as shown in FIG. Is moved in the retracting direction. At this time, the detected member 404 moves in the retracting direction without rotating.

  When the detected member 404 reaches the engagement start position P11, the electronic control unit stops the movement of the detected member 404 in the retracting direction, and advances the chain 222 again to engage the sprocket 220, as shown in FIG. Then, the detected member 404 is moved again in the advance direction. As a result, the detected member 404 moves in the advance direction while rotating again.

  In the example shown in FIG. 21, in the second step of moving the detected member 404 between the engagement start position P11 and the engagement end position P12, the protrusion 404a reaches the detection line X, and the protrusion 404a is the optical sensor 406. Detected by. The position of the detected member 404 at this time is set as a detection position P13.

  As shown to (e), when the to-be-detected member 404 exists in the detection position P13, the protrusion part 404a does not face the upper direction in FIG. 21, ie, the apparatus left direction in the cutting device 10. FIG. In the third embodiment, the mounting table 170 is provided so as to be positioned at the first circumferential position when the projecting portion 404a faces in the left direction of the apparatus. Therefore, the electronic control unit finely adjusts the circumferential position of the mounting table 170 by rotating the detected member 404 by moving the detected member 404 further from the detection position P13 in the advance direction, as shown in (e). To do.

  The motor 204, which is an actuator for moving the mounting table 170 in the advance direction and the retracting direction, is configured by a stepping motor. The motor 204 moves the mounting table 170 by rotating the ball screw 202 by an angle corresponding to the number of steps of the step signal given from the electronic control unit. On the other hand, the electronic control unit can grasp the actual rotation angle of the motor 204 by receiving the rotation amount signal transmitted from the encoder attached to the motor 204, and further determine the rotation angle of the detected member 404. I can grasp it.

  The motor 204 may be constituted by a servo motor. In this case, the electronic control unit can grasp the actual rotation angle of the motor 204 by receiving an FG (Frequency Generator) signal transmitted from the motor 204, and further grasp the rotation angle of the detected member 404. can do.

  The electronic control unit is a motor that should be received from when the protruding portion 404a is detected by the optical sensor 406 until the protruding portion 404a faces in the left direction of the apparatus, that is, until the mounting table 170 is positioned at the first circumferential position. The reference value of the rotation amount signal 204 is held. The electronic control unit monitors the rotation angle of the detected member 404 using the rotation amount signal of the motor 204 after the protrusion 404a is detected by the optical sensor 406, and the rotation amount signal reaches the held reference value. When it is determined that the placement table 170 is located at the first circumferential position, the movement of the detected member 404 in the advance direction is stopped and the rotation is stopped. Thus, as shown in (f), the mounting table 170 can be positioned at the first circumferential position with the protruding portion 404a facing the device leftward (upward in FIG. 21).

  It should be noted that the electronic control unit determines that the motor 204 is in a state from when the protruding portion 404a is detected by the optical sensor 406 until the protruding portion 404a faces in the left direction of the apparatus, that is, until the mounting table 170 is positioned at the first circumferential position. May hold a reference value of the number of steps to be given to. The electronic control unit counts the number of steps applied to the motor 204 after the protrusion 404a is detected by the optical sensor 406, monitors the rotation angle of the detected member 404, and the number of steps reaches the held reference value. Then, assuming that the mounting table 170 is located at the first circumferential position, the movement of the detected member 404 in the advance direction may be stopped to stop its rotation. Also by this, the mounting table 170 can be appropriately arranged at the first circumferential position.

  Finally, after the chain 222 is retracted from the sprocket 220, the electronic control unit moves the detected member 404 again in the retracting direction and stops at the origin P10 as shown in (g). Thereafter, the electronic control unit executes a predetermined process such as resuming the cutting process that has been interrupted in order to execute the initialization process.

(Fourth embodiment)
FIG. 22A and FIG. 22B are diagrams showing a configuration of an initial position detection mechanism 500 according to the fourth embodiment. FIG. 22A shows a state in which the sprocket 220 and the mesh switching mechanism 224 and the periphery thereof are viewed in the retracting direction of the mounting table 170, and FIG. 22B shows a state T- in FIG. It is T sectional drawing.

  The initial position detection mechanism 500 includes an advance / retreat unit 502, a slit plate 504, and a table side pin 506. The advance / retreat unit 502 is provided in the mesh switching mechanism 224. The slit plate 504 is formed in a disk shape, and is disposed coaxially between the sprocket 220 and the positioning rotor 252. The slit plate 504 has a recess 504 a that is recessed radially inward with respect to the rotation center of the mounting table 170. The table side pin 506 is fixed to the support bracket 172 so as to protrude downward from the lower surface of the support bracket 172. Therefore, the table side pin 506 moves between the cutting position P1 and the retracted position P2 together with the mounting table 170, the sprocket 220, and the slit plate 504.

  The advance / retreat unit 502 includes a sensor unit 510, a guide 512, and a coil spring 514. The guide 512 is attached to the rod 228 so as to extend in parallel with the moving direction of the mounting table 170 above the chain 222. The guide 512 supports the sensor unit 510 so as to be movable in parallel with the moving direction of the mounting table 170.

  The sensor unit 510 includes a sensor base 520, a sensor side pin 522, and an optical sensor 524. The sensor base 520 is a portion supported by the guide 512. The sensor side pin 522 is fixed to the sensor base 520 so as to protrude in a direction from the sensor base 520 toward the moving region of the table side pin 506. When the chain 222 is in the retracted position, the sensor-side pin 522 is retracted from the moving area of the table-side pin 506, and when the chain 222 is advanced to the advanced position by the mesh switching mechanism 224, the sensor-side pin 522 is advanced to the moving area of the table-side pin 506. To be provided.

  The optical sensor 524 is fixed to the sensor base 520 so as to protrude from the sensor base 520 toward the moving region of the slit plate 504. The optical sensor 524 has a recess that is recessed in the direction in which the chain 222 is retracted, and a light emitting element and a light receiving element are respectively disposed above and below the recess. Therefore, in the optical sensor 524, the inside of this recess is the detection range. In the optical sensor 524, when the chain 222 is in the retracted position, the moving area of the slit plate 504 is out of the detection range, and when the chain 222 is advanced to the advanced position by the mesh switching mechanism 224, the moving area of the slit plate 504 is detected. It is provided to be inside. When the concave portion 504 a of the slit plate 504 is detected by the optical sensor 524, the electronic control unit grasps the circumferential position of the mounting table 170. Therefore, the slit plate 504 functions as a member to be detected that is detected by the optical sensor 524.

  Each end of the coil spring 514 is attached to the side surface of the sensor base 520 on the rear side of the device and a support member fixed to the frame 200. The coil spring 514 functions as a biasing member that biases the sensor unit 510 in the rear direction of the apparatus, that is, in the retracting direction of the mounting table 170.

  22A and 22B show the state of the initial position detection mechanism 500 when the chain 222 is in the retracted position. At this time, the sensor-side pin 522 is retracted from the movement area of the table-side pin 506, and the movement area of the slit plate 504 is out of the detection range of the optical sensor 524.

  FIG. 23A and FIG. 23B are views showing the state of the initial position detection mechanism 500 when the chain 222 is advanced to the advanced position. When the placement table 170 moves in the advance direction to the mesh start position P11, the chain 222 is advanced to the advance position by the mesh switching mechanism 224. At this time, the sensor side pin 522 advances into the moving area of the table side pin 506, and the moving area of the slit plate 504 is within the detection range of the optical sensor 524.

  The table-side pin 506 is arranged so as to be positioned slightly in the retracting direction of the placement table 170 so as not to contact the sensor-side pin 522 when the chain 222 has advanced to the advance position. After the chain 222 has advanced to the advanced position, the mounting table 170 further moves in the advanced direction, whereby the table-side pin 506 contacts the sensor-side pin 522 and starts to push the sensor unit 510 in the advanced direction. Thus, the optical sensor 406 moves in the advance direction together with the mounting table 170.

  At this time, since the chain 222 is meshed with the sprocket 220, the sprocket 220 and the slit plate 504 rotate as the mounting table 170 moves in the advance direction. The optical sensor 406 detects the circumferential position of the mounting table 170 by detecting the concave portion 504a of the rotating slit plate 504 while moving in the advance direction together with the mounting table 170. FIG. 23A and FIG. 23B show a state immediately after the table 222 has come into contact with the sensor-side pin 522 after the chain 222 has advanced to the advance position.

  FIG. 24A is a diagram illustrating a state of the initial position detection mechanism 500 when the concave portion 504a of the slit plate 504 is detected by the optical sensor 524, and FIG. 24B is a state of FIG. FIG. 6 is a diagram illustrating a state of the initial position detection mechanism 500 when the chain 222 is retracted from the position to the retracted position.

  When the concave portion 504a of the slit plate 504 reaches the left side of the apparatus, that is, the left side in FIG. 24A from the start of rotation of the slit plate 504 to 90 degrees, the optical sensor 524 reaches the left side of the slit plate 504 by reaching the concave portion 504a. The recessed portion 504a is detected by releasing the light shielding. The electronic control unit finely adjusts the rotation angle of the mounting table 170 until it is positioned at the first circumferential position after the recess 504a is detected, and then moves the mounting table 170 in the advance direction. Is stopped, and the chain 222 is further retracted to the retracted position.

  Thereby, the mounting table 170 is held at the first circumferential position in a state where the engagement between the chain 222 and the sprocket 220 is released. At this time, as shown in FIG. 24B, the sensor unit 510 is returned in the retracting direction of the mounting table 170 by the urging force of the coil spring 514. By providing the recess 504a in the slit plate 504 in this way, it is possible to appropriately grasp the circumferential position of the mounting table 170 without providing a sensor in the table unit 16 provided with the mounting table 170. Become.

  FIG. 25 is a flowchart showing a procedure of initialization processing by the initial position detection mechanism 500 according to the fourth embodiment. The processing in this flowchart is repeatedly executed every processing time after the start button is pressed by the user in the cutting device 10 and the cutting processing is started until the cutting processing is stopped or interrupted. Hereinafter, the same steps as those in the flowchart shown in FIG.

  The flowchart shown in FIG. 25 is the same as the flowchart shown in FIG. 20 except that S40 and S42 are provided instead of S18 and S20. When the mounting table 170 is moved to the meshing start position P11 and the chain 222 advances and meshes with the sprocket 220 (S16), the electronic control unit rotates the mounting table 170 by 90 degrees, that is, the mounting table. While 170 moves from the meshing start position P11 to the meshing end position P12, it is determined every predetermined time whether or not the concave portion 504a is detected by the optical sensor 524 (S40). When the recessed part 504a is not detected (N of S40), it transfers to determination of S26.

  At this time, until the concave portion 504a is detected by the optical sensor 524, the electronic control unit returns the placing table 170 to the meshing start position again, meshes the chain 222 with the sprocket 220, and then moves the placing table 170 in the advance direction again. The process of determining whether or not the recess 504a is detected by the optical sensor 524 while rotating the slit plate 504 is repeated.

  When the concave portion 504a is detected (Y in S40), the electronic control unit continues to move the mounting table 170 in the advance direction after the detection of the concave portion 504a so that the mounting table 170 is positioned at the first circumferential position. Are finely adjusted (S42).

  In the fourth embodiment, the mounting table 170 is provided at the first circumferential position when the concave portion 504a faces to the left of the apparatus. However, similarly to the detection of the protruding portion 404a in the third embodiment, even when the concave portion 504a is detected by the optical sensor 524, the concave portion 504a does not reach the position slightly facing the left direction of the apparatus. For this reason, the electronic control unit further moves the mounting table 170 in the advance direction from the position where the recess 504a is detected to rotate the slit plate 504 so that the mounting table 170 is positioned at the first circumferential position. The position of the mounting table 170 in the circumferential direction is finely adjusted.

  The electronic control unit detects the motor 204 to be received from when the recess 504a is detected by the optical sensor 524 until the recess 504a faces to the left of the apparatus, that is, until the mounting table 170 is positioned at the first circumferential position. The reference value of the rotation amount signal is held. The electronic control unit monitors the rotation angle of the slit plate 504 using the rotation amount signal of the motor 204 after the recess 504a is detected by the optical sensor 524, and when the rotation amount signal reaches the held reference value. Then, assuming that the mounting table 170 is located at the first circumferential position, the movement of the mounting table 170 in the advancing direction is stopped to stop the rotation of the slit plate 504. As a result, the mounting table 170 can be positioned at the first circumferential position with the recess 504a facing leftward in the apparatus.

  The electronic control unit may hold a reference value for the number of steps to be given to the motor 204 from when the recess 504a is detected by the optical sensor 524 until the recess 504a faces in the left direction of the apparatus. The electronic control unit counts the number of steps applied to the motor 204 after the recess 504a is detected by the optical sensor 524, monitors the rotation angle of the slit plate 504, and when the number of steps reaches the held reference value In addition, assuming that the mounting table 170 is located at the first circumferential position, the movement of the slit plate 504 in the advance direction may be stopped to stop its rotation.

  The present invention is not limited to the above-described embodiment, and an appropriate combination of the elements of the first embodiment is also effective as an embodiment of the present invention. Various modifications such as design changes can be added to the first embodiment based on the knowledge of those skilled in the art, and embodiments to which such modifications are added are also included in the scope of the present invention. sell. Here are some examples.

  In a modification, a first drive mechanism and a second drive mechanism are provided in place of the vertical drive mechanism 90 and the horizontal drive mechanism 92. The first drive mechanism drives the blade 40 along a first line extending in a predetermined direction that is not the horizontal direction. The second drive mechanism drives the blade 40 along a second line that extends at an angle with the first line and extends in a predetermined direction that is not a vertical direction. Thus, even when each drive mechanism does not drive the blade 40 horizontally or vertically, if each drive direction has an angle, by adjusting the drive speed by each linear guide, The blade 40 can be moved in the direction.

  In another modification, instead of the table moving mechanism 18, a cutting position at which a sheet bundle placed on the placing table 170 is to be cut, and the placement table 170 and the blade edge of the cutter move from the cutting position. Moving means is provided for moving the relative position between the mounting table 170 and the blade edge moving surface between the retracted position where the power cutting edge moving surface is separated. The moving means may be a moving mechanism that advances and retracts the cutting mechanism 14 toward the mounting table 170. Also at this time, the coil spring 280 urges and lifts the mounting table 170 so that the mounting surface 170a is higher than the mounting surface 124a during the movement of the relative position between the mounting table 170 and the blade edge moving surface. . Further, the pressing member 130 lowers the placing table 170 against the urging force of the coil spring 280 by the force pressing the sheet bundle against the cutting table 124. As a result, for example, even when the blade 40 is moved toward the placement table 170 without moving the placement table 170, the hanging portion of the sheet bundle placed on the placement table 170 hits the cutting table 124. The situation can be avoided.

  In another variation, the cutting device 10 can be input by the user using the input device such as a mouse or a keyboard, with respect to the moving direction of the blade 40 when cutting the sheet bundle. The electronic control unit acquires the movement direction of the blade 40 thus input. Therefore, the electronic control unit functions as a movement direction acquisition unit that acquires the movement direction of the blade 40 at the time of cutting. The electronic control unit controls the operation of the vertical drive mechanism 90 or the horizontal drive mechanism 92 to move the blade 40 in the acquired moving direction and cut the sheet bundle.

  An appropriate moving direction of the blade 40 when cutting the sheet bundle varies depending on the thickness of the sheet bundle. As a result, for a material that is relatively difficult to cut, such as a thick booklet or a thick paper, it is possible to cut the paper bundle more appropriately by inputting the moving direction of the blade 40 so that the inclination angle with respect to the surface of the paper bundle becomes small. It becomes.

  In another modification, a one-way clutch interposed between the mounting table 170 and the sprocket 220 is provided. In this case, the rotation mechanism 176 holds the chain 222 while being advanced both when the mounting table 170 is advanced to the cutting position and when it is retracted to the retracted position. By providing the one-way clutch in this way, it is possible to avoid rotating the mounting table on one of the forward path and the return path and rotating the mounting table on the other. For this reason, the retracting operation of the chain 222 can be omitted.

  In another modification, a second meshing switching mechanism is provided. The second meshing switching mechanism has a second chain. The second chain is provided on the opposite side across the chain 222 and the sprocket 220. The second chain is provided so as to be able to advance and retreat between a meshing position that meshes with the sprocket 220 at a position opposite to the meshing position of the chain 222 and a non-meshing position that does not mesh with the sprocket 220. Other configurations of the second mesh switching mechanism are the same as those of the mesh switching mechanism 224. By providing the second chain on the opposite side of the chain 222 and the sprocket 220 in this way, the mounting table 170 can be rotated in the same direction on both the forward path and the return path of the mounting table 170.

  For example, in FIG. 10 (a), a fourth circumferential position rotated 90 ° in the reverse direction from the first circumferential position when in the retracted position P2 is set as the initial position. Here, when the mounting table 170 advances to the cutting position P1, the chain 222 is advanced to the meshing position and turned to the non-meshing position so that the mounting table 170 is rotated by 90 ° to the first circumferential position. Evacuate. Further, in FIG. 12B, instead of rotating the mounting table 170 by 180 ° in the reverse direction by the chain 222, the mounting table 170 is rotated by 90 ° to be in the fourth circumferential position. The second chain is advanced to the meshing position by the meshing switching mechanism 2 and retracted to the non-meshing position. By providing the second meshing switching mechanism in this way, the mounting table 170 can be returned to the initial position without rotating 180 degrees. For this reason, the length of the chain 222 or the second chain can be suppressed, and the size of the meshing switching mechanism can be suppressed.

  DESCRIPTION OF SYMBOLS 10 Cutting device, 14 Cutting mechanism, 16 Table unit, 18 Table moving mechanism, 20 Paper pressing mechanism, 40 Cutting tool, 80 Vertical linear guide mechanism, 82 Horizontal linear guide mechanism, 86 1st hydraulic cylinder, 88 2nd hydraulic cylinder, 90 Vertical drive mechanism, 92 Horizontal drive mechanism, 124 Cutting table, 124a Placement surface, 124b Recess, 130 Press member, 130a Press surface, 144 Guide, 170 Place table, 170a Place surface, 176 Rotation mechanism, 180 clamper, 202 Ball screw, 204 motor, 220 sprocket, 222 chain, 224 meshing switching mechanism, 250 locking mechanism, 252a notch, 254 positioning pin, 270 urging support mechanism, 280 coil sp Ring.

Claims (10)

A cutter provided movably to cut a bundle of paper,
A placement table having a placement surface on which the sheet bundle is to be placed;
A table moving means for moving the mounting table between a cutting position at which the stacked sheet bundle is to be cut, and a retreat position separated from a cutting edge moving surface to which the cutting edge of the blade moves than the cutting position; ,
A rotation mechanism that rotates the placement table so as to switch a portion to be cut of a bundle of sheets placed on the placement table while retreating from the cutting position to the retracted position and re-entering the cutting position;
A cutting apparatus comprising:   The cutting apparatus according to claim 1, wherein the rotation mechanism rotates the placement table using a force by which the placement table moves. The rotation mechanism is
A rotating member provided to move and rotate together with the mounting table;
A meshing member arranged to rotate the mounting table by meshing with the rotating member during movement of the mounting table;
The cutting apparatus according to claim 2, further comprising:   Even if the mounting table moves between the cutting position and the retracted position, the rotating member engages with the rotating position when the mounting table moves between the cutting position and the retracted position. The cutting apparatus according to claim 3, further comprising a mesh switching mechanism that moves the meshing member forward and backward between a non-meshing position that does not mesh with the meshing device.   The cutting apparatus according to claim 3, further comprising a lock mechanism that locks the table before rotation at a predetermined circumferential position.   6. The rotating member is provided to idle with respect to the mounting table when the mounting table is locked by the locking mechanism when the rotating member is rotating while meshing with the meshing member. The cutting device described in 1.   The cutting apparatus according to claim 3 or 4, further comprising a one-way clutch interposed between the mounting table and the rotating member. A detected member that rotates together with the mounting table;
A sensor that detects the position of the mounting table in the rotational direction by detecting the detected member;
The cutting device according to any one of claims 1 to 7, further comprising: The detected member has a protruding portion that protrudes radially outward with respect to the rotation center of the table.
The cutting apparatus according to claim 8, wherein the sensor detects the position of the mounting table in the rotation direction by detecting the protruding portion. The detected member has a recess that is recessed radially inward with respect to the rotation center of the table.
The cutting apparatus according to claim 8, wherein the sensor detects a position in a rotation direction of the mounting table by detecting the concave portion while moving together with the mounting table.

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