JP2009091153A - Sheet material stacking apparatus and method of stacking sheet material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet material stacking apparatus and a method of stacking sheet material, capable of aligning both end surfaces of a sheet material in a width direction stacked on a sheet material stacking base. <P>SOLUTION: This sheet material stacking apparatus includes: the stacking base 102 on which a planographic printing plate 48 thrown into from a belt conveyer 42 is stacked; a first guide member 126A erected along a conveying direction a on the stacking base 102 and aligning one end surface of the planographic printing plate 48 in the width direction; a second guide member 126B arranged parallel to the first guide member 126A and relatively opposite thereto across the stacking base 102; a pusher 226 composing at least a part of the first guide member 126A and displaced between a reference position in which the distance to the second guide member 126B is equal to the width D of the planographic printing plate 48 and a separating position in which the distance to the second guide member 126B is larger than the width D of the planographic printing plate 48; and a drive means 136 displacing the pusher 226 and aligning both the end surfaces of the sheet material in the width direction. The method of stacking sheet material uses the sheet material stacking apparatus. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sheet material accumulating apparatus and a sheet material accumulating method.

  In a line for producing a lithographic printing plate, a heat-sensitive or photosensitive plate-making layer is formed on the roughened surface of a support web roughened on one side or both sides of an aluminum web. After slitting to a predetermined width, it is cut into a predetermined length to form a lithographic printing plate.

  Sheet materials such as a lithographic printing plate and recording paper obtained in this way are accumulated by a sheet material accumulating device in the manufacturing process.

  As an example of the sheet material accumulating device, a pair of leaf spring members are arranged in parallel with the conveying direction so as to be spaced apart from the width of the planographic printing plate by +0 to −5 mm to form side walls, and printing is performed by the biasing force of the leaf spring members There is one that positions the plate at the center position (see, for example, Patent Document 1).

As another example of the sheet material accumulating device, the sheet material accumulating unit is provided with first and second side guides movable across the conveying direction, and the first side guides are convex and arched. There is a rigid position adjustment member having a shape surface, and a second side guide is a flexible position adjustment member (for example, see Patent Document 2).
JP 2002-308513 A JP-A-10-120280

  However, in the sheet material accumulating device described in Patent Document 1, when the lithographic printing plate has been meandered and conveyed, the lithographic printing plate is biased along the width direction from the normal loading position. If the deviation or inclination is noticeable when it is thrown in or in a state inclined with respect to the traveling direction, the lithographic printing plate cannot be corrected by the spring member and the lithographic printing plate is The leaf spring member may be caught.

  Moreover, in the sheet material stacking apparatus of the form described in Patent Document 2, even if an end surface of a large amount of stacked sheet bundles is aligned with the first and second side guides, a flexible surface on one side In some cases, it was difficult to push in and alignment was not possible.

  An object of the present invention is to provide a sheet material accumulating apparatus and a sheet material accumulating method that can align both end surfaces in the width direction of sheet materials accumulated on a sheet material accumulating table.

  The sheet material stacking apparatus according to claim 1 of the present invention includes a sheet material stacking table on which the sheet material loaded from a sheet material transporting unit that transports the sheet material is stacked, and the sheet material is stacked on the sheet material stacking table. A first guide member that is erected along the conveying direction and aligns one end surface in the width direction of the sheet material, and is parallel to the first guide member and opposed to each other with the sheet material stacking table interposed therebetween. A second guide member disposed on the first guide member, a reference position at which a distance between the second guide member and the second guide member is equal to a width of the sheet material, and the first guide member And a driving unit that displaces the pusher in the second guide member and aligns both end surfaces in the width direction of the sheet material. It is characterized by a door.

  According to the above configuration, normally, when the sheet material is input from the sheet material conveying unit to the sheet material stacking table, the sheet material is loaded in a biased manner in the width direction of the sheet material.

  For this reason, when the sheet material is loaded, the driving means is driven to displace the pusher to a separated position where it is not in contact with the other end surface in the width direction of the sheet material.

  Thereby, the sheet material is accumulated on the sheet material accumulation stand without being caught by the first guide member and the second guide member.

  Thereafter, the pusher is displaced to a reference position where it comes into contact with the other end surface in the width direction of the sheet material, so that one end surface in the width direction of the sheet material hits the second guide member and is accumulated on the sheet material accumulation stand. Both end surfaces in the width direction of the sheet material can be aligned.

  According to a second aspect of the present invention, in the sheet material stacking apparatus according to the first aspect, the height of the upper surface of the sheet bundle formed by stacking the sheet materials on the sheet stacking table is the height of the upper edge of the pusher. It relates to the one whose height is controlled to be lower than the height.

  According to the sheet material accumulating apparatus, the sheet material to be input to the sheet accumulating table is placed on the sheet bundle after being reliably positioned by the pusher and the first guide member.

  A third aspect of the present invention relates to the sheet material accumulating apparatus according to the first or second aspect, wherein the entire first guide member is a pusher.

  According to the sheet material accumulating device, since the entire first guide member is a pusher, the configuration is simple.

  According to a fourth aspect of the present invention, in the sheet material accumulating device according to the first or second aspect, the first guide member is fixed at a separated position where the distance from the second guide member is larger than the width of the sheet material. It is related with what is divided | segmented into the made guide part and the pusher located under the said guide part.

  In the sheet material accumulating apparatus, a sheet accumulating frame is formed by the guide portion of the first guide member and the second guide member. The width of the sheet accumulating frame is greater than the width of the sheet material. Since it becomes larger by the amount, the allowable range of meandering when the sheet material is meandered and fed is expanded as compared with the case where the width of the sheet stacking frame is substantially equal to the width of the sheet material.

  Therefore, when a sheet material is loaded at a short interval, the previously loaded sheet material cannot be dropped due to being caught between the first guide member and the second guide member and interferes with the next loaded sheet material. Is prevented.

  In addition, since the sheet material put on the sheet stacking table is positioned by the pusher, the same alignment accuracy in the width direction as when the first guide member or the entire second guide member is used as the pusher can be obtained.

  The sheet material accumulating device according to claim 5 is the sheet material accumulating device according to any one of claims 1 to 4, wherein the sheet material is disposed above the first guide member and above the second guide member. Is formed with an inclined surface that guides the sheet material to the sheet material accumulation stand.

  According to the above configuration, when the sheet material is input from the sheet material conveying unit to the sheet material stacking table, the sheet material may contact the upper part of the first guide member or the second guide member.

  At this time, since the inclined surface is formed on the upper part of the first guide member and the upper part of the second guide member, the sheet material comes into contact with the inclined surface and is guided to the sheet material stacking table.

  Accordingly, the sheet material is not caught at the upper part of the first guide member or the upper part of the second guide member, and both end surfaces in the width direction of the sheet material can be aligned.

  The sheet material accumulating device according to claim 6 is the sheet material accumulating device according to any one of claims 1 to 5, wherein the sheet material accumulating device detects a tip of the sheet material put into the sheet material accumulating table. And a control unit that starts driving the driving unit in synchronization with the timing detected by the detecting unit and displaces the pusher to the separated position.

  According to the above configuration, the detecting means detects the leading edge of the sheet material that is put into the sheet material stacking table.

  Since the control means drives the drive means in synchronization with the timing detected by the detection means and displaces the second guide member to the separation position, the sheet is kept in a state where the distance between the first guide member and the second guide member is increased. The material can be put into the sheet material stacking table.

  As a result, the sheet material is not caught in the middle, and both end surfaces of the sheet material can be aligned.

  The sheet material accumulating apparatus according to claim 7 is the sheet material accumulating apparatus according to claim 6, wherein the control unit selects a period of displacement of the pusher in accordance with a conveyance speed of the sheet material. The drive means is controlled based on the above, and the pusher is vibrated.

  According to the above configuration, the control unit selects the displacement period of the pusher in accordance with the sheet material conveyance speed in the sheet material conveyance unit, and controls the drive of the drive unit based on the period to vibrate the pusher. .

  Thus, even if the sheet material is continuously input to the sheet material accumulation stand, the sheet material can be input when the second guide member is in the separated position, so that the sheet material is not caught and the sheet material Can be aligned.

  The sheet material accumulating device according to claim 8 of the present invention is the sheet material accumulating device according to any one of claims 1 to 7, wherein the driving means is provided at a plurality of locations, and the pushers are simultaneously disposed at a plurality of locations. It relates to what is driven.

  According to the above configuration, the pusher is simultaneously driven at a plurality of locations, so that the pusher is uniformly contacted with the end surface of the sheet material without being bent, so that the end surfaces of the sheet material are aligned.

  The sheet material accumulating device according to claim 9 of the present invention is the sheet material accumulating device according to any one of claims 2 to 8, wherein the entire first guide member functions as a pusher and the second guide. A member is provided that can be displaced to the separation position or the reference position by the driving means, and the first guide member and the second guide member are alternately displaced.

  According to the above configuration, the first guide member is displaced to the separation position, and the sheet material is input to the sheet material stacking table.

  Subsequently, the first guide member is displaced to the reference position, and one end face of the sheet material is aligned.

  Subsequently, after the second guide member is displaced to the separation position, it is displaced to the reference position.

  Thereby, the both end surfaces of the width direction of a sheet | seat material can be arrange | equalized.

  The invention according to claim 10 is a sheet material stacking table on which the sheet material loaded from a sheet material transporting unit that transports the sheet material is stacked, and is along the transport direction of the sheet material of the sheet material stacking table. A first guide member which is erected in parallel to the side edge and aligns one end surface in the width direction of the sheet material, and is erected so as to be opposed to the first guide member with the sheet material accumulation base interposed therebetween. The sheet material is made by swinging the second guide member that aligns the other end surface in the width direction of the sheet material, the first guide member and the second guide member in a closing direction or an opening direction with a lower end as a center. And a swinging means for aligning both end faces in the width direction of the sheet material.

  According to the sheet material accumulating apparatus having the above configuration, the sheet material is thrown between the first guide member and the second guide member. Then, while the loaded sheet material falls between the first guide member and the second guide member, the first guide member and the second guide member are swung to place the sheet material on the sheet material stacking table. To the predetermined position. Thereby, the both end surfaces of the width direction of a sheet | seat material are arrange | equalized.

  According to an eleventh aspect of the present invention, in the sheet material accumulating device according to the tenth aspect, the first guide member and the second guide member are both closed with the first guide member and the second guide member. A vertical portion formed to be perpendicular to the sheet stacking table, and an inclined portion that is inclined outwardly above the vertical portion, the first guide member and the second guide The members are arranged so that the interval between the vertical portions when they are closed to each other is a dimension obtained by adding the permissible width of the sheet material to the width of the accumulated sheet material.

  According to the sheet stacking apparatus having the above-described configuration, each of the first guide member and the second guide member has the vertical portion and the inclined portion that extends upward and is inclined in the direction of opening outward. When the sheet material is loaded when the first guide member and the second guide member are closed, the sheet material is loaded even if there is a slight error in the width direction at the sheet material loading position. The sheet material is fed without being caught by either the first guide member or the second guide member.

  Then, when the inserted sheet material falls between the vertical portion of the first guide member and the vertical portion of the second guide member, the first guide member and the second guide member are swung in a closing direction. Thus, the sheet material is guided to a predetermined stacking position and stacked on the sheet stacking table. Here, since the interval between the vertical portions is a dimension obtained by adding an allowable amount to the width of the sheet material, even if there is some error in the width of the sheet material, the vertical portion falls without being caught by the vertical portion.

  According to a twelfth aspect of the present invention, in the sheet material accumulating device according to the eleventh aspect, the first guide member and the second guide member swing in synchronization with each other.

  According to the sheet laminating apparatus having the above-described configuration, when the first guide member and the second guide member swing in the opening direction, the movements of both are synchronized. Therefore, the first guide member and the second guide member are Compared with the sheet material accumulating apparatus that is not synchronized, it is possible to more effectively prevent the loaded sheet from being caught by the first guide member or the second guide member.

  According to a thirteenth aspect of the present invention, in the sheet stacking apparatus according to the twelfth aspect, the first guide member and the second guide member are in a closed state before the sheet material is inserted, and the sheet When the material is inserted, the first guide member and the second guide member swing from the closed state to the opening direction by the swinging means, and the sheet material is moved to the first guide member and the second guide. The first guide member and the second guide member swing in the closing direction again by the swinging means while falling between the vertical portions of the members.

  According to the sheet material accumulating apparatus having the above-described configuration, the first guide member and the second guide member are moved while the input sheet material falls between the vertical portions of the first guide member and the second guide member. Since the sheet material swings again in the closing direction, the sheet material is stacked on the stacking table while being positioned by the first guide member and the second guide member.

  Therefore, the sheet material can be stacked in a state where the shift of the side edges of the sheet material on the stacking table is minimized.

  According to a fourteenth aspect of the present invention, in the sheet material accumulating device according to the twelfth aspect, the first guide member and the second guide member are in an open state before the sheet material is charged, While the sheet material is charged and the sheet material falls between the vertical portions of the first guide member and the second guide member, the first guide member and the second guide member are opened from each other. The swinging means swings in a closing direction, and then swings in the opening direction again.

  According to the sheet material accumulating device, the sheet material is positioned by the first guide member and the second guide member after the first guide member and the second guide member are put in an open state.

  Therefore, as compared with the sheet material accumulating device according to claim 13, the sheet material is further caught on the first guide member and the second guide member when the variation in the feeding position along the width direction of the sheet is large. Effective deterrence.

  A fifteenth aspect of the present invention is the sheet material stacking apparatus according to the thirteenth or fourteenth aspect, further comprising a sheet material detection sensor that detects a sheet material input from a sheet material conveying unit, wherein the swinging unit includes the swinging unit, The timing at which the first guide member and the second guide member are swung is determined based on the timing at which the sheet material detection sensor detects the sheet material.

  According to the sheet material accumulating device, the swinging means determines the timing for swinging the first guide member and the second guide member based on the timing when the sheet material detection sensor detects the sheet material. Therefore, even if the timing of feeding the sheet material varies, the sheet material can be continuously collected while effectively preventing the sheet material from being caught on the first guide member and the second guide member.

  A sheet material accumulating method according to claim 16 of the present invention is a sheet material accumulating method for accumulating sheet materials using the sheet material accumulating device according to any one of claims 1 to 9, wherein the pusher is Displacing the sheet material into the sheet material stacking table and displacing the pusher to the reference position and aligning both end surfaces in the width direction of the sheet material. It is a feature.

  According to the above configuration, the sheet material is input from the sheet material conveying means to the sheet material stacking table, and the pusher is displaced to the separation position. Thus, the sheet material is accumulated on the sheet material accumulation stand without being caught by the first guide member and the pusher.

  Thereafter, the pusher is displaced to a reference position where it comes into contact with the other end surface in the width direction of the sheet material, so that one end surface in the width direction of the sheet material hits the first guide member and is accumulated on the sheet material accumulation stand. Both end surfaces in the width direction of the sheet material can be aligned.

  A sheet material accumulating method according to claim 17 of the present invention is a sheet material accumulating method for accumulating sheet materials using the sheet material accumulating apparatus according to claim 9, wherein the first guide member is moved to the separated position. Displacing and feeding the sheet material into the sheet material stacking table; displacing the first guide member to the reference position and aligning one end surface of the sheet material; and And a step of displacing the second guide member to the reference position and aligning the other end surface of the sheet material.

  According to the above configuration, the first guide member is displaced to the separation position, and the sheet material is input to the sheet material stacking table.

  Subsequently, the first guide member is displaced to the reference position, and one end face of the sheet material is aligned.

  Subsequently, after the second guide member is displaced to the separation position, it is displaced to the reference position.

  Thereby, both end surfaces of the sheet material can be aligned.

  The invention according to claim 18 is a sheet material accumulating method for accumulating sheet materials using the sheet material accumulating device according to any one of claims 10 to 15, wherein the first guide member and the second material A step of swinging the guide members in a direction to open each other and feeding the sheet material into the sheet material stacking base; and a step of swinging the first guide member and the second guide member in a direction to close each other. And a step of aligning both end faces in the width direction.

  According to the sheet material accumulating apparatus having the above-described configuration, when a sheet is loaded, the first guide member and the second guide member swing to position the sheet material.

  Therefore, even if there is a slight error in the loading position in the width direction, the sheet material is loaded above the sheet stacking table without being caught by either the first guide member or the second guide member, and stacked. Since the sheets are accumulated at predetermined positions on the table, both end faces in the width direction of the sheet material are aligned.

  Since this invention set it as the said structure, the both end surfaces of the width direction of the sheet | seat material integrated | stacked on the sheet | seat material integration | stacking stand can be aligned.

1. Embodiment 1

  Hereinafter, in the sheet material accumulating apparatus of the present invention, an example in which the entire first guide member functions as a pusher will be described.

  1 and 2 show a configuration of a processing line 10 for a lithographic printing plate in which the stacking apparatus 100 according to one embodiment is incorporated.

  As shown in FIG. 1, a web feeder 16 is disposed on the upstream side of the processing line 10 (upper right side in FIG. 1).

  The web delivery machine 16 is detachably loaded with a web roll 14 in which a web 12 that is a material of a lithographic printing plate is wound into a roll. Further, the web feeder 16 continuously feeds the web 12 from the web roll 14 to the downstream side at a speed corresponding to the line speed of the processing line 10.

  After the curl is corrected by the leveler 18, the web 12 is conveyed to the pressure roller 20 disposed on the downstream side.

  The pressure roller 20 presses the belt-shaped slip sheet 24 sent from the slip sheet feeder 22 to the upper surface (surface of the photosensitive layer) of the web 12. At this time, the interleaf paper 24 pressed onto the web 12 is charged by a charging device (not shown) and electrostatically bonded to the web 12. A notch 26 is disposed on the downstream side of the pressure roller 20.

  In the present embodiment, the case where the slip sheet 24 is used is described, but the slip sheet 24 may be omitted.

  When the slit width of the web 12 is changed, the notch 26 punches out the center portion and both side end portions along the width direction of the web 12, and the notch portions (predetermined shapes) are respectively formed at the center portion and both side end portions of the web 12. Notch). Thereby, the width of the web 12 can be changed while continuously cutting the web 12 and the interleaf 22 at the same time.

  A slitter device 28 for cutting the web 12 into a predetermined slit width is disposed on the downstream side of the notch 26. Further, a length measuring device 30 for counting the feed length is disposed on the downstream side of the slitter device 28.

  Here, the web 12 cut to a predetermined slit width by the slitter device 28 is counted in the feed width by the length measuring device 30, and when it reaches a preset count value, the cutter 32 synchronizes with it in the web width direction. It is designed to be cut along. Thereby, a lithographic printing plate 48 of a predetermined size is manufactured.

  As shown in FIG. 2, a conveying device 36 composed of a plurality of belt conveyors 34 and 42 is provided on the downstream side of the cutter 32.

  In the belt conveyor 34, a belt is stretched between a pair of rollers 33 that are rotatably provided, and the belt can move in the direction of arrow F. Similarly, the belt conveyor 42 has a belt stretched around a pair of rollers 41 that are rotatably provided, and the belt can move in the direction of arrow F.

  By the belt conveyors 34 and 42, the planographic printing plate 48 cut from the web 12 is conveyed downstream.

  The web 12 may be divided into two along the width direction by the slitter device 28 (see FIG. 1), and the two lithographic printing plates 48 may be cut simultaneously by the cutter 32. In this case, the two planographic printing plates 48 are distributed on different belt conveyors 42 by distribution gates (not shown) installed in the middle of conveyance to the accumulation apparatus 100, and two accumulations installed at different positions. Each is loaded into the apparatus 100.

  On the other hand, between the belt conveyor 34 and the belt conveyor 42, a sorting gate 40 for switching the transport destination of the planographic printing plate 48 is installed.

  The sorting gate 40 distributes the corresponding lithographic printing plate 48 onto the belt conveyor 38 for line-out when the lithographic printing plate 48 cut from the web 12 is a sample product or a defective product. .

  The belt conveyor 38 has a configuration in which a belt is stretched around a pair of rollers 37 that are rotatably provided, and a lithographic printing plate 48 such as a sample product or a defective product is collected in a collection box 44 arranged on the downstream side. It is designed to be transported to.

  A stacking device 100 that stacks a plurality of planographic printing plates 48 is provided at the end of the transport device 36.

  A sensor 45 that detects the passage of the leading end of the lithographic printing plate 48 that has been conveyed is disposed on the front side of the stacking apparatus 100 and above the belt conveyor 42.

  The sensor 45 is a reflective optical sensor and detects the passage of the front end portion of the planographic printing plate 48 based on the amount of reflected light received. The sensor 45 is connected to a control device 47 that controls driving of each unit of the integrated device 100 based on a detection signal detected by the sensor 45.

  Next, the integrated device 100 will be described.

  As shown in FIG. 2, the stacking apparatus 100 includes a flat stacking table 102.

  The upper surface of the stacking table 102 is a flat stacking surface 103 on which the planographic printing plates 48 are stacked. Further, the stacking table 102 is supported by a lifter 104.

  The lifter 104 always keeps the height of the uppermost lithographic printing plate 48 according to a detection signal from a level sensor (not shown) that detects the height of the uppermost lithographic printing plate 48 accumulated on the collecting surface 103. The stacking table 102 is moved up and down along the thickness direction of the planographic printing plate 48 so as to be constant.

  A back stopper 106 is provided on the downstream side in the transport direction of the planographic printing plate 48 on the stacking table 102, and a front stopper 146 is provided on the upstream side.

  The back stopper 106 is provided with a stopper plate 108 so as to face the end surface of the planographic printing plate 48 stacked on the stacking surface 103.

  The stopper plate 108 includes a base portion 110 made of a metal plate or a plastic plate, and a pad-shaped cushion material 114 fixed to the base portion 110. The cushion material 114 is disposed so as to come into contact with the end face of the planographic printing plate 48.

  Further, a receiving plate 112 that temporarily receives the end portion of the planographic printing plate 48 protrudes from the surface of the cushion material 114 of the stopper plate 108.

  The receiving plate 112 is a plate-like member that is inclined downward toward the stacking table 102. The inclination angle of the receiving plate 112 with respect to the horizontal plane is preferably about 15 to 30 degrees, but can be arbitrarily set according to the properties of the planographic printing plate 48, the input speed, and the like.

  The receiving plate 112 may be coated with a soft material such as a polyamide resin (trade name MC nylon), a high-density polyethylene resin, a polypropylene resin, or a fluorine resin on the surface on which the planographic printing plate 48 contacts. .

  A cylinder 116 for supporting the stopper plate 108 and attenuating the impact from the planographic printing plate 48 is provided on the back side of the base portion 110 of the stopper plate 108 (on the side opposite to the cushion material 114).

  The cylinder 116 is fixed to a frame, a floor, and the like of the processing line 10 via a bracket (not shown) so that the positional relationship with the belt conveyor 42 is not displaced.

  Further, the cylinder 116 supports the rod 118 so as to be slidable along the conveying direction, and the distal end portion of the rod 118 is connected and fixed to the base portion 110.

  A compressed coil spring 120 is disposed on the outer peripheral side of the rod 118. The coil spring 120 biases the stopper plate 108 in the direction opposite to the conveying direction.

  Here, the position of the cylinder 116 can be adjusted along the transport direction. Accordingly, the position of the stopper plate 108 in the transport direction can be adjusted according to the length along the transport direction of the planographic printing plate 48 loaded on the stacking table 102.

  On the other hand, as shown in FIGS. 2 and 3, the front stopper 146 has a substantially rectangular parallelepiped shape and is hollow, so that the thickness direction coincides with the transport direction and the longitudinal direction coincides with the width direction of the stacking table 102. Is arranged.

  The upper end of the front stopper 146 is slightly lower than the upper surface of the belt conveyor 42, and the downstream end is processed into an R shape. Further, the inner surface on the downstream side of the front stopper 146 positions the lithographic printing plate 48 placed on the stacking table 102 along the transport direction.

  A plurality of slit-like nozzle holes 140 elongated in the width direction are formed in the upper part of the inner side surface of the front stopper 146. An air pipe (not shown) for supplying air to the plurality of nozzle holes 140 is provided in the front stopper 146, and air is blown from the plurality of nozzle holes 140 when the planographic printing plate 48 is accumulated. It has become so.

  As a result, an air layer is formed between the planographic printing plate 48 and the stacking surface 103 or between the planographic printing plates 48 immediately after being fed from the belt conveyor 42, and moves (slides) on the stacking surface 103 by inertial force. The movement resistance of the lithographic printing plate 48 is suppressed.

  Below the nozzle hole 140, a receiving plate 144 is erected to temporarily support the end of the planographic printing plate 48 loaded by the belt conveyor 42 from below.

  Similar to the receiving plate 112, the receiving plate 144 is a plate-like member that is inclined downward toward the stacking table 102. The angle of inclination of the receiving plate 144 with respect to the horizontal plane is preferably about 15 to 30 degrees, like the receiving plate 112, but can be arbitrarily set according to the properties of the planographic printing plate 48 and the input speed.

  Similarly to the receiving plate 112, the upper surface of the receiving plate 144 may be covered with a soft material such as AC nylon, high molecular weight polyethylene resin, polypropylene resin, or fluorine resin, and the tip may be curved downward. Good.

  As shown in FIGS. 3 and 4, the stacking apparatus 100 is provided with side guides 122 </ b> A and 122 </ b> B on the outer sides of both (left and right) side end surfaces of the stacking table 102.

  The side guide 122A includes a casing 125A in which a hollow portion 124A is formed, a guide plate 126A that forms one side wall of the casing 125A and is arranged to face the left end surface of the integrated planographic printing plate 48, and a guide plate The guide plate driving portion 136 is configured to abut or separate 126A from the planographic printing plate 48.

  The guide plate 126A is erected in the vertical direction, and is perpendicular to the vertical portion 130A facing the end surface of the bundle 49 (sheet bundle) of the planographic printing plates 48 that is a sheet body, and at the upper end side of the vertical portion 130A. The inclined portion 128A is inclined by θ and the flat portion 132A is provided so as to protrude outward from the upper end side of the inclined portion 128A. The angle θ is preferably 0 to 60 degrees with respect to the vertical plane, and more preferably 0 to 40 degrees.

  The guide plate 126A is made of a stainless steel plate and has sufficient strength so that it does not deform even when it receives an impact load from the planographic printing plate 48.

  The guide plate driving unit 136 includes a rotating body 137, a first link member 138, a second link member 139, a support member 142, a holding member 141, and a base 140.

  The rotating body 137 is rotatably supported by a bracket or the like (not shown), and reciprocates in the direction of arrow R by a motor (not shown) driven by a control device 47 disposed in the vicinity of the stacking device 100. It is designed to rotate. The above-described sensor 45 (see FIG. 2) is connected to the control device 47, and when a detection signal is sent from the sensor 45, the motor is driven by counting a predetermined time.

  The first link member 138 is fixed to the rotating body 137 by adhesion or welding, and is driven to reciprocate and rotate integrally with the rotating body 137.

  The second link member 139 has one end rotatably connected to the end of the first link member 138 with a pin, and the other end rotatably connected to the end of the support member 142 with a pin. .

  The support member 142 is formed of a substantially L-shaped steel plate, and a portion bent in the vertical direction is fixed to the back side of the vertical portion 130A of the guide plate 126A by welding or the like.

  The holding member 141 is fixed on a base 140 fixed to the inside of the casing 125A, and an arm portion that protrudes horizontally at a predetermined interval moves (slids) the support member 142 in the horizontal direction. Hold it possible.

  Here, when the rotating body 137 and the first link member 138 rotate counterclockwise, the left end portion of the second link member 139 moves obliquely upward to the left, and the right end portion of the second link member 139 moves to the left side. . As a result, the support member 142 moves to the left, the guide plate 126A moves to the left, and is separated from the left end surface of the planographic printing plate 48.

  Further, when the rotating body 137 and the first link member 138 rotate clockwise, the left end portion of the second link member 139 moves obliquely downward to the right, and the right end portion of the second link member 139 moves to the right side. As a result, the support member 142 moves to the right and the guide plate 126A moves to the right, and comes into contact with the left end surface of the planographic printing plate 48.

  On the other hand, the side guide 122B includes a casing 125B in which a hollow portion 124B is formed, and a guide plate 126B that forms one side wall of the casing 125B and is disposed to face the right end surface of the integrated planographic printing plate 48. It is configured.

  The guide plate 126B is erected in the vertical direction and faces the end face of the bundle of lithographic printing plates 48. The inclined portion 128B is inclined at an angle θ with respect to the vertical direction on the upper end side of the vertical portion 130B. It comprises a flat portion 132B projecting outward from the upper end side of the inclined portion 128B. The angle θ is preferably 0 degrees to 40 degrees from the vertical plane, similar to the guide plate 126A described above.

  The guide plate 126B is made of a stainless steel plate and has sufficient strength so that it does not deform even when it receives an impact load from the planographic printing plate 48.

  A hard film is formed on the inner surfaces of the guide plates 126A and 126B, that is, the surface on which the planographic printing plate 48 abuts.

  The surface hardness of the hard coating is higher than that of stainless steel, which is the base material of the guide plates 126A and 126B, and preferably the surface hardness is 2000 Vickers hardness or more. Further, the friction coefficient between the hard coating and the lithographic printing plate 48 is lower than the friction coefficient between the base material and the lithographic printing plate 48, and specifically, preferably 0.2 or less.

  Examples of such a film include a hard chromium plating film and a diamond-like carbon film (DLC film). The diamond-like carbon film (DLC film) can be formed, for example, by treating the guide plates 126A and 126B with a plasma of a hydrocarbon gas in a plasma CVD apparatus.

  Here, in the present embodiment, the guide plate 126B is fixed to the housing 125B with a bolt (not shown). The casings 125A and 125B are fixed by fixing means such as bolts (not shown).

  As shown in FIG. 5A, the guide plate drive unit 136 is provided at two locations along the width direction of the guide plate 126A, and the guide plate 126A is supported by the support member 142A and the support member 142B. ing. In this way, by supporting the guide plate 126A at a plurality of locations, the guide plate 126A is prevented from bending and the flatness of the vertical portion 130A is maintained.

  As a comparative example, FIG. 5B shows a state in which the guide plate 126A is supported by the support member 135 at one place. Such support at one place may cause bending at the end portion of the guide plate 126A, and therefore it is preferable to support the guide plate 126A at a plurality of locations.

  Next, the operation of Embodiment 1 of the present invention will be described.

  First, positioning (end face alignment) in the transport direction of the planographic printing plate 48 placed in the stacking table 102 will be described.

  As shown in FIG. 3, the planographic printing plate 48 is loaded onto the stacking table 102 by the belt conveyor 42. At this time, air is blown from the nozzle hole 140 of the front stopper 146, and the frictional resistance between the loaded lithographic printing plate 48 and the integrated surface 103 or the integrated lithographic printing plate 48 is suppressed.

  Further, the position of the accumulation surface 103 or the accumulated planographic printing plate 48 is adjusted to a certain height by the lifter 104. Thereby, the planographic printing plates 48 sequentially fed by the belt conveyor 42 land at substantially the same position regardless of the number of planographic printing plates 48 on the stacking surface 103.

  The front end surface of the planographic printing plate 48 placed on the stacking surface 103 comes into contact with the back stopper 106. The stopper plate 108 that receives a load from the planographic printing plate 48 by this contact receives the damping force from the cylinder 116 at the same time as it moves in the conveying direction while compressively deforming the coil spring 120. Thereby, the movement of the planographic printing plate 48 in the transport direction is stopped.

  The back stopper 106 extends the rod 118 by the restoring force of the coil spring 120 and biases the planographic printing plate 48 to the front stopper 146 via the stopper plate 108. As a result, the rear end surface of the planographic printing plate 48 comes into contact with the front stopper 146.

  In this way, the planographic printing plate 48 is positioned along the transport direction.

  The planographic printing plate 48 positioned in the transport direction falls toward the stacking surface 103. At this time, the planographic printing plate 48 is supported from below by the receiving plates 112 and 144 and falls onto the stacking surface 103 while being bent downward. The fallen lithographic printing plate 48 comes into contact with the lithographic printing plate 48 with its abdomen first and then its end accumulated due to its own weight.

  Next, positioning (end face alignment) in the width direction (direction orthogonal to the transport direction) of the planographic printing plate 48 will be described.

  As shown in FIG. 6A, before the lithographic printing plate 48 (see FIG. 3) is inserted, the guide plates 126A and 126B abut against the width direction both ends of the bundle 49 of the lithographic printing plate 48, Both end faces of the planographic printing plate 48 are aligned. In this state, the distance between the guide plate 126A and the guide plate 126B is the same as the width of the planographic printing plate 48, and this is taken as the reference position. Here, the bundle 49 corresponds to the sheet bundle of the present invention.

  Subsequently, as shown in FIGS. 2, 4, and 6 (b), the sensor 45 detects the passage of the front end portion of the planographic printing plate 48 on the belt conveyor 42. Based on this detection signal, the guide plate drive unit 136 is driven by the control device 47 described above, and the guide plate 126A moves in the arrow -X direction. A position where the guide plate 126A is not in contact with the other end face (left side of the drawing) of the planographic printing plate 48 is defined as a separated position.

  Here, the range of displacement of the guide plate 126A is preferably within 0 to +10 mm, with the reference position being 0. Further, it is preferable that the correction allowance can be displaced by about −2 to −3 mm.

  Subsequently, the planographic printing plate 48 is loaded in a state where the guide plate 126A is located at a separated position and is spaced from the end face of the bundle 49 by a distance d1. For this reason, the planographic printing plate 48 is not caught on the guide plates 126A and 126B.

  Here, if the lithographic printing plate 48 is dropped in a state where the center position of the lithographic printing plate 48 and the central position of the bundle 49 coincide with each other, both end faces of the lithographic printing plate 48 and both end faces of the bundle 49 are aligned. However, if the lithographic printing plate 48 falls with these center positions shifted, as shown in FIG. 6C, the lithographic printing plate 48 is placed with a distance d2 protruding from the other end face (left side of the drawing) of the bundle 49. It will be.

  Subsequently, as shown in FIG. 6D, the control device 47 described above drives the guide plate drive unit 136 after a predetermined time has elapsed after detecting the lithographic printing plate 48, and the guide plate 126A moves to the arrow + X. Move in the direction. The guide plate 126A contacts the other end surface (left side of the drawing) of the planographic printing plate 48 and moves the planographic printing plate 48 toward the guide plate 126B.

  The other end surface (left side in the drawing) of the planographic printing plate 48 is urged by the guide plate 126A, and one end surface (right side in the drawing) contacts the guide plate 126B. Thereby, both ends of the bundle 49 and the planographic printing plate 48 are aligned.

  The period of movement of the guide plate 126A in the X direction is set to 0.1 second to 1 second (10 Hz or less in terms of frequency).

  As described above, when the planographic printing plate 48 is loaded from the belt conveyor 42, the guide plate driving unit 136 drives the guide plate 126A to displace the guide plate 126A to the separation position. Thereby, the planographic printing plate 48 is stacked on the stacking table 102 without being caught by the guide plate 126A and the guide plate 126B.

  Thereafter, the guide plate 126A is displaced to a reference position that contacts the other end surface (left side of the drawing) in the width direction of the planographic printing plate 48, whereby both ends in the width direction of the planographic printing plate 48 accumulated on the stacking table 102 are obtained. You can align the faces.

  In addition, since the inclined portions 128A and 128B are formed on the guide plate 126A and the guide plate 126B, even if the planographic printing plate 48 comes into contact with the guide plate 126A or the guide plate 126B, the planographic printing plate 48 is used. Is guided to the stacking table 102 in contact with the inclined portion 128A or 128B. For this reason, the planographic printing plate 48 is not caught on the way.

  Further, since the control device 47 drives the guide plate driving unit 136 in synchronization with the timing detected by the sensor 45 and displaces the guide plate 126A, the lithographic plate with the distance between the guide plate 126A and the guide plate 126B being separated. The printing plate 48 can be loaded on the stacking table 102.

  Further, since the guide plate 126A is simultaneously driven by the guide plate driving portions 136A and 136B, the guide plate 126A comes into uniform contact with the end surface of the planographic printing plate 48 without bending, so that the end surface of the planographic printing plate 48 is aligned. It is done.

  Note that vibration may be applied to the inclined portion 128B of the guide plate 126B, which is a reference guide (fixed guide), by a vibrator or the like so that the planographic printing plate 48 is not caught on the guide plate 126B.

2. Embodiment 2

  Next, another example of the sheet material accumulating apparatus of the present invention in which the entire first guide member functions as a pusher will be described. Note that components that are basically the same as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  As shown in FIGS. 7A and 7B, a sensor 150 that detects the speed of the planographic printing plate 48 conveyed by the belt conveyor 42 is disposed above the belt conveyor 42. .

  The sensor 150 is an optical sensor similar to the sensor 45 (see FIG. 2) in the first embodiment, and is connected to a control device 152 that measures the speed of the planographic printing plate 48 and moves the guide plate 126A.

  Based on the detection signal from the sensor 150, the control device 152 counts the time (passage time) from the passage of the leading end portion of the planographic printing plate 48 to the passage of the trailing end portion, and a preset planographic printing The passage speed (conveyance speed) is measured by dividing the length of the plate 48 by the passage time.

  On the other hand, an accumulation device 160 is disposed on the downstream side of the belt conveyor 42.

  The stacking device 160 is provided with the back stopper 106 and the front stopper 146 described above in the transport direction of the planographic printing plate 48.

  Further, the stacking device 160 is provided with a side guide 162 in the width direction of the planographic printing plate 48. The side guides 162 are provided on both sides of the bundle 49 of the planographic printing plates 48. However, the right side has the same configuration as the side guides 122B (see FIG. 3), and the description thereof is omitted.

  The side guide 162 includes a housing 164 in which a hollow portion 166 is formed, the above-described guide plate 126A (see FIG. 4), and a guide plate driving unit 168 that contacts or separates the guide plate 126A from the planographic printing plate 48. Has been.

  The guide plate driving unit 168 is a piston-type air vibrator, and includes a base 170 fixed to the inside of the housing 164, a piston portion 172 disposed from the base 170 toward the guide plate 126A, and a piston portion 172. And a support plate 174 fixed to one end of the plate.

  The support plate 174 is fixed to the back side of the guide plate 126A by adhesion or the like.

  The piston portion 172 can supply air from an air supply portion (including a regulator and a solenoid valve) (not shown), and is connected to the control device 152 described above.

  The control device 152 selects a cycle to be set from a plurality of cycles based on the speed of the planographic printing plate 48 detected by the sensor 150, and vibrates the guide plate 126A based on the set cycle. Yes. In the present embodiment, the frequency of the guide plate 126A is set to about 50 Hz.

  A speed matrix including the transport speed of the planographic printing plate 48 and the timing of displacement of the guide plate 126A is stored in the controller 152 in advance, and the measured transport speed of the planographic printing plate 48 is used based on this speed matrix. The timing of displacement of the guide plate 126A may be determined.

  In this manner, when the control device 152 drives the air supply unit, air is supplied to the piston unit 172, and the guide plate 126A vibrates in the arrow X direction.

  Next, the operation of Embodiment 2 of the present invention will be described. Note that the positioning (end face alignment) in the transport direction of the planographic printing plate 48 placed on the stacking table 102 is the same as that in the first embodiment, and thus the description thereof is omitted.

  As shown in FIG. 8A, before the lithographic printing plate 48 (see FIG. 3) is inserted, the guide plates 126A and 126B are brought into contact with both end surfaces in the width direction of the bundle 49 of the lithographic printing plate 48. Both end faces of the planographic printing plate 48 are aligned. The position in this state is set as a reference position.

  Subsequently, as shown in FIG. 7, the sensor 150 detects the passage of the front end portion and the rear end portion of the planographic printing plate 48 on the belt conveyor 42. Based on this detection signal, the guide plate driving unit 168 is driven by the control device 152, and the guide plate 126A starts to vibrate.

  The guide plate 126A vibrates in synchronization with the conveyance speed of the planographic printing plate 48, and as shown in FIG. 8B, the planographic printing plate 126A is moved when the guide plate 126A moves a distance d3 in the arrow -X direction. 48 is inserted. The position in this state is set as a separated position. Note that the displacement amount of the distance d3 is the same as the distance d1 in the first embodiment.

  Subsequently, as shown in FIG. 8C, the guide plate 126A moves in the arrow + X direction. The guide plate 126A contacts the other end surface (left side of the drawing) of the planographic printing plate 48 and moves the planographic printing plate 48 toward the guide plate 126B.

  Subsequently, as shown in FIG. 8D, the other end surface (left side of the drawing) of the planographic printing plate 48 is urged by the guide plate 126A, and one end surface (right side of the drawing) contacts the guide plate 126B. Thereby, both ends of the bundle 49 and the planographic printing plate 48 are aligned.

  By repeating this process, since the guide plate 126A continuously vibrates between the reference position and the separated position, the planographic printing plate 48 falls without being caught between the guide plate 126A and the guide plate 126B. Further, even when the next lithographic printing plate 48 is inserted, both end faces of the lithographic printing plate 48 are similarly aligned.

  As described above, the control device 152 selects the displacement period of the guide plate 126A in accordance with the conveyance speed of the planographic printing plate 48 on the belt conveyor 42, and controls the drive of the guide plate drive unit 168 based on the period. Then, the guide plate 126A is vibrated.

  As a result, even if the planographic printing plate 48 is continuously loaded into the stacking table 102, the planographic printing plate 48 can be loaded when the guide plate 126A is separated from the guide plate 126B. Both end faces of the printing plate 48 can be aligned.

3. Embodiment 3

  Next, in the sheet material accumulating apparatus of the present invention, another example in which the entire first guide member functions as a pusher will be described. Note that components that are basically the same as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  In the present embodiment, a stacking device 180 is disposed instead of the stacking device 100 on the downstream side of the belt conveyor 42 shown in FIG.

  As shown in FIG. 9, the stacking apparatus 180 is provided with side guides 182 </ b> A and 182 </ b> B on the outer sides of both (left and right) side end surfaces of the stacking table 102.

  Here, since the side guide 182A and the side guide 182B have a configuration in which the same members are symmetrically arranged, the description of the right side guide 182B is omitted. In addition, about the right side guide 182B, the code | symbol B is provided and demonstrated as needed.

  The side guide 182A includes a casing 184A in which a hollow portion 186A is formed, the above-described guide plate 126A that forms one side wall of the casing 184A and is opposed to the left end surface of the integrated planographic printing plate 48, The guide plate driving unit 136 is configured to bring the guide plate 126A into contact with or separate from the planographic printing plate 48.

  Next, the operation of the third embodiment of the present invention will be described. Note that the positioning (end face alignment) in the transport direction of the planographic printing plate 48 placed on the stacking table 102 is the same as that in the first embodiment, and thus the description thereof is omitted.

  Before the introduction of the planographic printing plate 48 (see FIG. 3), the guide plates 126A and 126B are brought into contact with both end surfaces in the width direction of the bundle 49 of the planographic printing plates 48 so that both end surfaces of the planographic printing plate 48 are aligned.

  Subsequently, as shown in FIGS. 2, 9, and 10 a, the sensor 45 detects the passage of the front end portion of the planographic printing plate 48 on the belt conveyor 42. Based on this detection signal, the guide plate driving unit 136A is driven by the control device 47 described above, and the guide plate 126A moves in the direction of arrow -X by a distance d4. Note that the distance d4 is the same as the distance d1 described above.

  Since the planographic printing plate 48 is loaded in a state where the guide plate 126A is disposed with a gap of the distance d4 from the end face of the bundle 49, the planographic printing plate 48 is not caught on the guide plates 126A and 126B.

  Subsequently, as shown in FIGS. 9 and 10b, the control device 47 described above drives the guide plate driving unit 136A after a predetermined time has elapsed after detecting the planographic printing plate 48, and the guide plate 126A moves in the direction of the arrow + X. Move to. The guide plate 126A contacts the other end surface (left side of the drawing) of the planographic printing plate 48 and moves the planographic printing plate 48 toward the guide plate 126B.

  The other end surface (left side in the drawing) of the planographic printing plate 48 is urged by the guide plate 126A, and one end surface (right side in the drawing) contacts the guide plate 126B. Thereby, both ends of the bundle 49 and the planographic printing plate 48 are aligned. The period of movement of the guide plate 126A in the X direction is set to 0.1 second to 1 second (10 Hz or less in terms of frequency).

  Subsequently, as shown in FIGS. 2, 9, and 10 c, the sensor 45 detects the passage of the leading end of the next planographic printing plate 48 on the belt conveyor 42. Based on this detection signal, the guide plate driving unit 136B is driven by the control device 47 described above, and the guide plate 126B moves in the arrow + X direction.

  The planographic printing plate 48 is loaded in a state where the guide plate 126B is arranged with a gap of one end face (right side of the drawing) of the bundle 49 and a distance d4.

  Subsequently, as shown in FIGS. 9 and 10d, the control device 47 described above drives the guide plate driving unit 136B after a lapse of a predetermined time after detecting the planographic printing plate 48, and the guide plate 126B moves to the arrow -X. Move in the direction. The guide plate 126B contacts one end surface (right side of the drawing) of the planographic printing plate 48 and moves the planographic printing plate 48 toward the guide plate 126A.

  The planographic printing plate 48 has one end surface (right side in the drawing) biased by the guide plate 126B, and the other end surface (left side in the drawing) contacts the guide plate 126A. Thereby, both ends of the bundle 49 and the planographic printing plate 48 are aligned.

  The planographic printing plate 48 may be a sheet material such as recording paper.

  The guide plate driving unit 136 may be a cam type driven by a motor.

  The guide plate driving unit 168 may be a turbine type air vibrator. In this case, the frequency is 100 to 300 Hz.

4). Embodiment 4

  In the sheet material accumulating apparatus of the present invention, an example in which the first guide member is divided into a guide portion fixed at a separated position and a pusher positioned below the guide portion will be described. Note that components that are basically the same as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  As shown in FIG. 11, in the sheet material stacking apparatus 200 according to the fourth embodiment, the first guide member is divided into a guide plate 126A corresponding to the guide portion of the present invention and a pusher 226 positioned below the guide plate 126A. . The height of the stacking table 102 is controlled so that the lower edge of the guide plate 126 </ b> A and the upper edge 226 </ b> A of the pusher 226 are higher than the upper surface 133 of the bundle 49.

  Note that cushion materials 127A and 127B are inserted between the guide plate 126A and the housing 125A and between the guide plate 126B and the housing 125B, respectively.

  The pusher 226 reciprocates between a separation position indicated by a solid line and a reference position indicated by a two-dot chain line in FIG. 11 by a pusher driving unit 236 accommodated in the housing 125A. The distance between the pusher 226 and the guide plate 126B corresponding to the second guide portion is equal to the width D of the planographic printing plate 48 at the reference position, and the amplitude A of the pusher 226 is set to the width D of the planographic printing plate 48 at the separated position. Equal to the added length.

  The pusher drive unit 236 has the same configuration as the guide plate drive unit 136 in the first to third embodiments, and is driven by the control device 147. A sensor 45 (see FIG. 2) is connected to the control device 147, and when a detection signal is sent from the sensor 45, a motor for driving the pusher driving unit 236 is counted by counting a predetermined time.

  Except for the above points, the integrated device 200 has the same configuration as the integrated device 100 of the first embodiment.

  Hereinafter, the operation of the stacking apparatus 200 will be described by taking as an example the case where the (N-1) th lithographic printing plate 48, the Nth lithographic printing plate 48, and the (N + 1) th lithographic printing plate 48 are loaded.

  As shown in FIGS. 12A and 12B, the Nth planographic printing plate 48, which is the next planographic printing plate 48 after the N−1th planographic printing plate 48, is conveyed in the conveying direction a by the belt conveyor 42. When the tip portion is detected by the sensor 45, the motor 137 is turned on after T seconds and starts rotating.

  Time t elapses from the time when the sensor 45 detects the leading edge of the Nth lithographic printing plate 48, and as shown in FIGS. 13A and 13B, the (N-1) th lithographic printing plate 48. Comes into contact with the surface of the cushion material 114 included in the back stopper 106. At this time, the pusher 226 is at the reference position, and guides the (N−1) th lithographic printing plate 48 put on the bundle 49 above the bundle 49. The time t is from when the sensor 45 detects the leading end of the Nth planographic printing plate 48 to when the leading end of the (N−1) th planographic printing plate 48 contacts the cushion material 114 of the back stopper 106. It can be determined a priori as time. The time T is set so that t = T + tm (where tm is a time for the motor 137 to make a half turn, that is, a time required for the pusher 226 to move from the separated position to the reference position). The

  The motor 137 continues to rotate as it is, and the pusher 226 returns to the separated position, as shown in FIGS. At this point, the (N-1) th lithographic printing plate 48 is stacked on the bundle 49, and the Nth lithographic printing plate 48 is being fed toward the lithographic printing plate bundle 49. The tip of the planographic printing plate 48 is detected by the sensor 45.

5). Embodiment 5

  In the sheet material accumulating apparatus of the present invention, the first guide member and the second guide member are in an open state, i.e., a state where they are separated from each other, and a state where they are closed, i.e., a state where they are close to each other. An example of this will be described. Note that components that are basically the same as those of the second embodiment are denoted by the same reference numerals as those of the second embodiment, and description thereof is omitted.

  As shown in FIG. 15, in the sheet material accumulating apparatus 202 according to the fifth embodiment, the guide plates 126A and 126B are continuously provided so as to open outwardly above the vertical portions 131A and 131B, respectively. Inclined portions 128A and 128B. The angle θ formed by the vertical portions 131A and 131B and the inclined portions 128A and 128B is preferably in the range of 10 to 60 degrees, and more preferably in the range of 20 to 40 degrees.

  The guide plates 126A and 126B are swingably attached to the lower ends of the inner surfaces of the casings 125A and 125B of the side guides 122A and 122B at the base portions of the vertical portions 131A and 131B. Note that the guide plates 126A and 126B are formed so that the vertical portions 131A and 131B become vertical when swinging so as to be in a closed state as shown by a solid line in FIG. In the guide plates 126A and 126B, the distance between the base portions of the vertical portions 131A and 131B is set to a regulation width, that is, the width of the planographic printing plate 48, that is, a dimension along the direction perpendicular to the loading direction of the planographic printing plate 48. The allowable width of the sheets is set to a dimension obtained by adding the size of deviation along the width direction that is allowed when the planographic printing plates 48 are stacked. The regulation width is normally set to about the width of the planographic printing plate 48 + 1 mm.

  Inside the casings 125A and 125B, swing mechanisms 336A and 336B for swinging the guide plates 126A and 126B are provided.

  As shown in FIGS. 15 and 16, the swing mechanisms 336 </ b> A and 336 </ b> B each move the motor 337, the crank 338 rotated by the motor 337, the rockers 339 and 340 that are followers of the crank 338, and the movement of the rocker 340. And a transmission rod 341 that transmits to the guide plates 126A and 126B. The transmission rod 341 is rotatably attached to the back surface of the inclined portions 128A and 128B of the guide plates 126A and 126B, that is, the surface opposite to the side on which the planographic printing plate 48 abuts. The crank 338 and the rocker 339 are coupled by a pin 342, the rocker 339 and the rocker 340 are coupled by a pin 343, and the rocker 340 and the transmission rod 431 are coupled by a pin 344. Further, the locker 340 is pivotally supported by the pin 345 on the inner wall of the casing 125A or 125B.

  When the crank 338 rotates around the rotation shaft 337A of the motor 337 as indicated by an arrow a, the rocker 339 reciprocates within a range indicated by a solid line and a two-dot chain line. Accordingly, the rocker 340 swings around the pin 345 as indicated by arrows b and c, so that the transmission rod 341 reciprocates. Thus, the guide plates 126A and 126B are pushed or pulled by the transmission rod 341 at the inclined portions 128A and 128B, and swing as indicated by the solid line and the two-dot chain line in FIG. In swing mechanisms 336A and 336B, motor 337 is controlled by controller 147 so that guide plates 126A and 126B open and close in synchronization.

  As shown in FIG. 17A, the guide plates 126A and 126B can be operated in the order of operation of closing, opening, and closing. That is, when the planographic printing plate 48 is loaded onto the stacking table 102 by the belt conveyor 42, the guide plates 126A and 126B are in a closed state, and the planographic printing plate 48 falls between the inclined portions 128A and 128B. In the meantime, the guide plates 126A and 126B are swung in the opening direction so that the planographic printing plate 48 is not caught between the vertical portions 131A and 131B. When the planographic printing plate 48 falls between the vertical portions 131A and 131B, the guide plates 126A and 126B are swung in the closing direction again to guide the planographic printing plate 48 to a predetermined position on the stacking table 102. .

  On the contrary, the guide plates 126A and 126B can be operated in the order of opening → closing → opening operation as shown in FIG. That is, when the planographic printing plate 48 is loaded onto the stacking table 102 by the belt conveyor 42, the guide plates 126A and 126B are opened from each other. When the planographic printing plate 48 falls between the vertical portions 313A and 131B, the guide plates 126A and 126B are swung in a closing direction to guide the planographic printing plate 48 to a predetermined position on the stacking table 102. When the planographic printing plate 48 is stacked on the stacking table 102, the guide plates 126A and 126B are swung in the opening direction again.

  Except for the above points, the accumulation device 202 has the same configuration as the accumulation device 180 of the third embodiment.

  Hereinafter, the operation of the stacking apparatus 202 will be described by taking as an example the case where the (N-1) th lithographic printing plate 48, the Nth lithographic printing plate 48, and the (N + 1) th lithographic printing plate 48 are loaded. First, the case where the guide plates 126A and 126B are swung in the order of closing, opening, and closing when the planographic printing plate 48 is loaded will be described.

  18 and 19, the Nth planographic printing plate 48, which is the next planographic printing plate 48 after the N−1th planographic printing plate 48, is transferred by the belt conveyor 42. When transported along the transport direction a and the leading end is detected by the sensor 45, the motor 337 starts rotating at a timing set by a timer (not shown), and the guide plates 126A and 126B are opened in the mutual direction. Start swinging.

  Therefore, when the sensor 45 detects the leading edge of the Nth lithographic printing plate 48, the guide plates 126A and 126B are closed as shown in FIGS. While the lithographic printing plate 48 of the eye falls between the inclined portions 128A and 128B, the guide plates 126A and 126B swing in the opening direction as shown in FIGS. 18 and 19B. While the Nth lithographic printing plate 48 falls between the vertical portions 131A and 131B to the vicinity of the stack 49, the guide plates 126A and 126B are moved as shown in FIG. Swing again and close each other. As a result, the Nth planographic printing plate 48 is guided to a predetermined position on the stacking table 102, and the stacking position is aligned.

  Next, a case where the guide plates 126A and 126B are swung in the order of opening, closing, and opening when the planographic printing plate 48 is loaded will be described.

  20 and 21, the Nth planographic printing plate 48, which is the next planographic printing plate 48 after the N−1th planographic printing plate 48, is transferred by the belt conveyor 42. When transported along the transport direction a and the leading end is detected by the sensor 45, the motor 337 starts rotating at the timing set by the timer, and the guide plates 126A and 126B start swinging in the closing direction. .

  Therefore, when the sensor 45 detects the leading edge of the Nth lithographic printing plate 48, the guide plates 126A and 126B are open as shown in FIG. 20A and FIG. While the lithographic printing plate 48 of the eye falls between the inclined portions 128A and 128B, the guide plates 126A and 126B are swung in a closing direction as shown in FIG. 20 and FIG. The planographic printing plate 48 is guided to a predetermined position on the stacking table 102 while the plate 48 falls between the vertical portions 131A and 131B to the vicinity of the stacking bundle 49. When the lithographic printing plate 48 falls to the vicinity of the stacking bundle 49, the guide plates 126A and 126B are again swung and opened as shown in FIG. 20C.

FIG. 1 is an overall view of a processing line of a planographic printing plate according to Embodiment 1 of the present invention. FIG. 2 is a partial configuration diagram of a processing line according to Embodiment 1 of the present invention. FIG. 3 is a configuration diagram of the integrated device according to the first embodiment of the present invention. FIG. 4 is a cross-sectional view in the width direction of the integrated device according to the first embodiment of the present invention. FIG. 5 is an explanatory diagram illustrating a support state of the guide plate according to the first embodiment of the present invention. FIG. 6 is an explanatory diagram showing a procedure for moving the guide plate according to Embodiment 1 of the present invention to align the end faces of the planographic printing plate. FIG. 7 is a partial configuration diagram of a processing line and a cross-sectional view in the width direction of the accumulation device according to the second embodiment of the present invention. FIG. 8 is an explanatory diagram showing a procedure for moving the guide plate according to Embodiment 2 of the present invention to align the end faces of the planographic printing plate. FIG. 9 is a cross-sectional view in the width direction of the integrated device according to the third embodiment of the present invention. FIG. 10 is an explanatory diagram showing a procedure for moving the guide plate according to Embodiment 3 of the present invention and aligning the end faces of the planographic printing plate. FIG. 11 is a cross-sectional view in the width direction of an integrated device according to Embodiment 4 of the present invention. FIG. 12 is a side view and a front view showing the operation of the pusher when the N−1 to (N + 1) th planographic printing plates are loaded in the stacking apparatus according to the fourth embodiment of the present invention. FIG. 13 is a side view and a front view showing the operation of the pusher when the N−1 to (N + 1) th planographic printing plates are loaded in the stacking apparatus according to the fourth embodiment of the present invention. FIG. 14 is a side view and a front view showing the operation of the pusher when the N−1 to (N + 1) th planographic printing plates are loaded in the stacking apparatus according to the fourth embodiment of the present invention. FIG. 15 is a cross-sectional view in the width direction of the integrated device according to the fifth embodiment of the present invention. FIG. 16 is an enlarged cross-sectional view illustrating a detailed configuration of the swing mechanism included in the stacking apparatus according to the fifth embodiment of the present invention. FIG. 17 is an explanatory diagram illustrating an operation procedure of the guide plate provided in the stacking apparatus according to the fifth embodiment of the present invention. FIG. 18 is a side view showing the operation of the guide plate when the N−1 to (N + 1) th planographic printing plates are loaded in the stacking apparatus according to Embodiment 4 of the present invention. FIG. 19 is a front view showing the operation of the guide plate when the N−1 to (N + 1) th planographic printing plates are loaded in the stacking apparatus according to Embodiment 4 of the present invention. FIG. 20 is a side view showing the operation of the guide plate when the N−1 to (N + 1) th planographic printing plates are loaded in the stacking apparatus according to the fourth embodiment of the present invention. FIG. 21 is a front view showing the operation of the guide plate when the N−1 to (N + 1) th planographic printing plates are loaded in the stacking apparatus according to Embodiment 4 of the present invention.

Explanation of symbols

10 Processing line 42 Belt conveyor (sheet material conveying means)
45 sensor (detection means, sheet material detection sensor)
47 Control device (control means)
48 Planographic printing plate (sheet material)
100 stacking device (sheet material stacking device)
102 Stacking table (sheet material stacking table)
126A Guide plate (first guide member)
126B Guide plate (second guide member)
128A inclined part (inclined surface)
128B inclined part (inclined surface)
131A Vertical part 131B Vertical part 136 Guide plate drive part (drive means)
150 sensor (detection means)
152 Control device (control means)
160 Stacking device (sheet material stacking device)
168 Guide plate driving section (driving means)
180 Stacking device (sheet material stacking device)
200 Stacking device (sheet material stacking device)
202 Stacking device (sheet material stacking device)
226 pusher 236 pusher drive (drive means)
336 Oscillation mechanism (oscillation means)
337 Motor 338 Crank 339 Rocker 340 Rocker 341 Transmission rod 342 Pin 343 Pin 344 Pin 345 Pin

Claims (18)

A sheet material stacking table on which the sheet material input from the sheet material transporting means for transporting the sheet material is stacked;
A first guide member that is erected along the conveying direction of the sheet material to the sheet material stacking table and aligns one end surface in the width direction of the sheet material;
A second guide member arranged in parallel to the first guide member and facing each other across the sheet material stacking table;
While constituting at least a part of the first guide member, the distance between the second guide member and the reference position where the distance from the second guide member is equal to the width of the sheet material, and the distance from the second guide member is larger than the width of the sheet material A pusher that is displaced between large spaced positions;
The sheet material accumulating apparatus comprising: a driving unit that displaces the pusher and aligns both end surfaces of the sheet material in the width direction.   The height of the sheet material stack is controlled so that the height of the upper surface of the sheet bundle formed by stacking the sheet materials on the sheet stack is lower than the height of the upper edge of the pusher. The sheet | seat material integration | stacking apparatus as described in.   The sheet material stacking apparatus according to claim 1, wherein the entire first guide member is a pusher.   The first guide member is divided into a guide portion fixed at a spaced position where the distance from the second guide member is larger than the width of the sheet material, and a pusher located below the guide portion. Or the sheet material accumulating device according to 2;   The inclined surface which guides the said sheet material to the said sheet material accumulation stand was formed in the upper part of the said 1st guide member and the said 2nd guide member, The any one of Claims 1-4 characterized by the above-mentioned. The sheet material accumulating apparatus according to the description. Provided a detecting means for detecting the leading edge of the sheet material to be put on the sheet material accumulation table,
6. The apparatus according to claim 1, further comprising a control unit that starts driving the driving unit in synchronization with the timing detected by the detecting unit and displaces the pusher to the separation position. The sheet | seat material accumulation | storage device as described in 2.   The said control means selects the period of the displacement of the said pusher according to the conveyance speed of the said sheet material, controls the drive of the said drive means based on this period, The said pusher is vibrated, It is characterized by the above-mentioned. Item 7. The sheet material accumulating device according to Item 6.   The sheet material accumulating apparatus according to claim 1, wherein the driving unit is provided at a plurality of locations, and the pusher is driven at the plurality of locations simultaneously.   The entire first guide member functions as a pusher, and the second guide member is provided so as to be displaceable to the separation position or the reference position by the driving means. The first guide member and the second guide member are The sheet material accumulating apparatus according to any one of claims 2 to 8, wherein the sheet material accumulating apparatus is alternately displaced. A sheet material stacking table on which the sheet material input from the sheet material transporting means for transporting the sheet material is stacked;
A first guide member that is erected in parallel with a side edge along the conveying direction of the sheet material of the sheet material stacking table and aligns one end surface in the width direction of the sheet material;
A second guide member that is erected so as to face the first guide member across the sheet material stacking table, and that aligns the other end surface in the width direction of the sheet material;
Oscillating means for oscillating the first guide member and the second guide member in a closing direction or an opening direction around a lower end to align both end faces in the width direction of the sheet material;
A sheet material accumulating apparatus comprising:   Each of the first guide member and the second guide member includes a vertical portion formed to be perpendicular to the sheet stacking table when the first guide member and the second guide member are closed, An inclined portion that inclines toward the outside above the vertical portion, and the first guide member and the second guide member are arranged such that the interval between the vertical portions when they are closed is a sheet material to be accumulated. The sheet material accumulating apparatus according to claim 10, wherein the sheet material accumulation device is disposed so as to have a dimension obtained by adding an allowable width of the sheet material to the width.   The sheet material stacking apparatus according to claim 11, wherein the first guide member and the second guide member swing in synchronization with each other. The first guide member and the second guide member are in a closed state before the sheet material is charged,
When the sheet material is inserted, the first guide member and the second guide member swing from the closed state to the opening direction by the swinging means, and the sheet material is moved to the first guide member and the first guide member. 13. The sheet material accumulating apparatus according to claim 12, wherein the first guide member and the second guide member are swung again in the closing direction by the swinging means while falling between the vertical portions of the two guide members. . The first guide member and the second guide member are in an open state before the sheet material is charged,
While the sheet material is charged and the sheet material falls between the vertical portions of the first guide member and the second guide member, the first guide member and the second guide member are opened from each other. The sheet material accumulating apparatus according to claim 12, wherein the sheet material is swung in a closing direction by the swinging means and then swinged in a direction in which the swinging means is opened again.   A sheet material detection sensor configured to detect a sheet material input from the sheet material conveying unit; and the swinging unit includes the first guide member and the second guide based on a timing at which the sheet material detection sensor detects the sheet material. The sheet material accumulating apparatus according to claim 13 or 14, wherein a timing for swinging the member is determined. A sheet material accumulating method for accumulating sheet materials using the sheet material accumulating device according to any one of claims 1 to 9,
Displacing the pusher to the separated position and loading the sheet material into the sheet material stacking table; displacing the pusher to the reference position and aligning both end faces in the width direction of the sheet material. A sheet material accumulation method characterized by the above. A sheet material accumulating method for accumulating sheet materials using the sheet material accumulating device according to claim 9,
Displacing the first guide member to the separation position and feeding the sheet material to the sheet material stacking table;
Displacing the first guide member to the reference position and aligning one end face of the sheet material; and
Displacing the second guide member to the separation position;
Displacing the second guide member to the reference position and aligning the other end face of the sheet material. A sheet material accumulating method for accumulating sheet materials using the sheet material accumulating device according to any one of claims 10 to 15,
Swinging the first guide member and the second guide member in a direction to open each other and feeding the sheet material into the sheet material stacking table;
Oscillating the first guide member and the second guide member in a closing direction to align both end faces in the width direction of the sheet material;
A sheet material accumulating method characterized by comprising:

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