JPH02233460A - Sheet paper stacking device - Google Patents

Abstract

PURPOSE:To eliminate an interference between a fork and a sheet loading bed, by supporting the fork, movably in the vertical direction, and by providing an electrical connection by which a device for vertically driving the fork, a device for longitudinally driving a fork, and a device for vertically driving the paper loading bed are operated with predetermined timing while being changed over between a manual mode and an automatic mode. CONSTITUTION:A bed 74 having a paper loading plate 73 onto which sheets conveyed by a belt 78 drops, is automatically lowered in response to a signal from a sensor for detecting the upper end of stacked sheets. When a push button is depressed after the amount of stacked sheets reaching a predetermined value, the bed 74 is slightly lowered by a predetermined degree, and accordingly, air cylinders 106, 107 are operated being delayed slightly, causing a fork to enter into a sheet dropping path so as to temporarily receive dropping sheets. The fork 104 is automatically lowered bit by bit in response to a signal from a sensor for detecting the upper end surface of the sheets. A push button is operated to lower the bed 74 down to its lower limit position during loading of the sheets onto the fork 104, and after the plate on which sheets are loaded being replaced with an empty plate, the bed 74 is elevated up to its upper limit position, thereby the descent of the fork 104 is stopped simultaneously with the stopping of the elevation of the bed 74, and is then retracted.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention is applied to a sheeter that is attached to a web-fed rotary printing machine and cuts and stacks a web into predetermined dimensions, and in which the paper that falls after being released from the grip of a belt is cut into sheets. This relates to a stacking device that temporarily loads paper on a stacking platform. [Prior Art] A web rotary printing press is equipped with a folding machine that cuts and folds the dried and cooled web into predetermined dimensions after printing.
Furthermore, in addition to this folding machine, a sheeter is often attached to the folding machine, which cuts the dried and cooled web after printing using a cutting device to a certain size and stacks it on a paper stacking table. Conventionally, this theta is generally constructed as follows.
In other words, this type of sheeter is equipped with a running belt that is stretched between a cooling device and a paper ejecting device, and the web is stretched between the cooling device and the paper discharge device, and the web is dried after printing and cooled by the cooling device. It is conveyed by being held between upper and lower belts. The belt is usually divided in the conveyance direction, and at the starting end of the front belt there is a rotating blade that rotates as the shaft rotates.
A cutting device is provided that includes a fixed blade that faces the rotating blade when it revolves, and the web conveyed by the belt is cut by the rotating blade and the fixed blade that face each other. Additionally, a kicker device is provided between the front belt and the rear belt, and is configured to press down the edge of the paper being conveyed after cutting. By decelerating the running speed of the rear stage belt compared to the running speed of the front stage belt and pressing down the edge of the paper conveyed by the rear stage belt, the front end of the paper conveyed by the front stage belt is The paper is piled up in a stack and conveyed to the paper output device. Furthermore, the paper ejecting device is equipped with a paper stacking table which is located below the paper to be released from the support of the upper and lower belts and is supported so as to be able to rise and fall. It is loaded onto the Gizumi board placed on the . The paper stacking platform automatically moves down according to the amount of stacked paper based on the signal from the paper surface detection sensor that detects the top edge of the stacked paper. In such a sheet paper machine, when the paper that has been discharged and loaded on the paper stacking machine reaches a predetermined amount, the machine must be stopped and replaced with an empty paper stacking machine, which reduces productivity. However, since the amount of waste generated when printing is restarted increases, a temporary paper receiving device that makes it possible to replace the waste plate without stopping the machine has been proposed and implemented. The temporary paper receiving device is equipped with a plurality of forks that are supported so as to move back and forth in the horizontal direction with respect to the falling path of the paper, and when the paper stack on the paper stack reaches a predetermined amount due to ejection. Then, this fork is advanced into the paper falling path to temporarily catch the paper, and during this temporary receiving, the paper-loaded paper tray is lowered together with the paper stacking platform, and the empty paper tray is lowered. After replacing the paper with the paper stack, the replaced empty Gite board is raised together with the paper stack and the fork is retracted, allowing the temporarily received paper to be transferred to the paper stack base and transferred to the regular paper stack. be. In such a temporary paper receiving device, when the fork enters, it comes into contact with the upper layer of the stacked paper and damages it, so in this case, it is recommended to lower the paper stacking platform slightly before allowing the fork to enter. It is being done. Also, if the paper size changes from, for example, full size to half size, if the fork sticks out to the full size position, it will get in the way when you move forward to the half size position and pull out the proof sheet. Since this is extremely dangerous, it has been conventional practice in semi-judicial situations to set the forward and backward stroke of the fork to 1/2 of the 7th of the paper size, and to stop the fork at an intermediate position. [Problem to be solved by the invention] However, in the conventional discharge paper stacking device, the amount of paper that falls onto the fork is limited by the height of the fork, so this cannot be increased. First, in the case of thick paper, it is difficult to replace the paper board while temporarily holding the paper. In particular,
The fork is advanced and retreated by operating a handle lever connected to the fork, and the paper stacking table is moved up and down by pushing a push button, except for automatic lowering based on paper surface detection. As a result, the forks tend to interfere with the loaded paper and the gite board, which poses problems in terms of workability and safety. [Means for Solving the Problems] In order to solve the above problems, the present invention provides a temporary system that lowers the Geidai stacked with paper and enters a fork into the lost page path of the Haigi paper to temporarily receive the ejected paper. In the sheeter paper stacking device equipped with a paper receiving device, the fork is supported in a vertically movable manner and a vertically movable drive device is provided,
This vertical movement drive device, the fork advancement/retraction movement drive device, and the paper stacking platform lifting/lowering drive device were electrically connected so that they could be switched between automatic and manual modes and operated at predetermined timings. [Function] The paper that is released from the support of the belt and falls onto the paper stacking table. The sheets are stacked on a stacked paper stack, and the paper stack is automatically lowered little by little in response to a signal from a paper surface detection sensor that detects the upper end surface of the stacked paper.

Paper pile i! When the amount reaches a predetermined limit and you press the fork removal push button, the paper stacking platform will descend by a certain amount, and a little later than this, the drive device will operate and the fork will protrude into the paper falling path, so the paper will be placed on the fork. It is loaded by falling. The fork automatically lowers a small amount in response to a signal from a paper surface detection sensor that detects the upper end surface of the paper stacked thereon.

While paper is being loaded onto the forks, press the push button to lower the paper stacking platform to its lowering limit, replace the loaded paper stacking board with an empty stacking board, and then raise the paper stacking platform to its upper limit position. let The lower part of the fork stops at the same time as the paper loading platform stops rising. After the fork stops in the lowered position, the drive device activates and moves backwards, so the paper loaded on the fork transfers onto the empty Gizumizaka that is stopped in the raised position, and then transfers to the regular wandering paper. Transition. The retreated fork rises and returns to its original position.

(Embodiment) Figs. 1 to 4 show an embodiment of the theta discharging device according to the present invention. Fig. 1 is a side view thereof, Fig. 2 is a plan view thereof, and Fig. 3 is a main view. Figure 4 is a side view of the sheeter and folding machine according to the invention, and a flowchart of the paper stacking operation. A pair of left and right frames l are erected at the rear of the machine, with multiple points connected by stays. 4 is a web that is dried and cooled after printing and is guided to the abrasive processing section.The web is guided to a guide roller rough through guide rollers 5 and 6, and is processed according to the specifications of the printed material. The guide roller 7 is configured to move toward either the sheeter 2 or the folding machine 3. Behind the upper and lower drag rollers 8 and 9 provided at the entrance of the sheeter 2, there are designated
A cutter barrel 1l of the cutting IM device indicated by O is rotatably supported by a frame l via an eccentric bearing and is rotationally driven from the driving side, and this cutter barrel l! 2 in the circumferential direction of the outer periphery of
Rotary blades 12 and 13 each having a rectangular cross-section and a long length are removably bolted into the notches lla and llb provided at the equal parts. Below the cutter body 1l is a kofter stand l.
4 is supported by connecting the left and right frames l, and on the upper inclined surface of this cutter stand 14, a fixed blade 15 having a long and flat rectangular cross section is attached to the rotating rotary blade 12 and the corner blade part. They are bolted together so as to face each other, and are configured to cut a web 4 sent out by a drag roller and conveyed by belts 31, 35, 38, which will be described later, with a rotary blade 12, 13. When cutting the web 4 into full sheets, only one of the rotary blades 12 and 13 is installed, and when cutting the web 4 into half sheets, the rotary blade 12 and l3 are installed.
．． Attach both 13. Reference numeral 16 denotes a guide plate for guiding the workpiece 4 to the cutting device i1fIO, and a roller 30 arranged in an inverted triangular shape behind the cutting device IO.
, a plurality of belts 3l are attached to the roller 32 and stretched in parallel in the roller axial direction, and the belt 31
placed above and in front of the ? JI several rollers 33.
34, a plurality of belts 35 are stretched in parallel in the axial direction of the roller. Further, a plurality of rollers 36 and 37 disposed in front of the belt 3l are provided with a plurality of belts 3l.
8 are stretched in parallel in the direction of the roller wheels, and are cut by these belts 31, 35, and 38. ! It is configured to convey the previous web 4 and the paper after cutting.

Note that the running speed of the belt 38 is set to be lower than the running speed of the belts 31 and 35.

Above the starting end of the belt 38, a force device, generally designated by the reference numeral 40, is provided. This kicker if40 is
This device pushes the tail of cut paper, and is equipped with a kicker shaft 42 that is rotatably supported on left and right frames I via eccentric bearings 4l. It is rotated by a drive device (not shown) so that it rotates once each time one sheet is sent out. On the kicker shaft 42, two sets of kicker levers 44, each consisting of a plurality of kicker levers 44 each having a kicker roller 43 pivoted on the free end thereof, are fixed in parallel in the axial direction, and the belt 35 is clamped. When the trailing edge of the cut paper fed between the rear half of the belt 35 and the belt 38 in a decelerated state by the front half and the belt 3l reaches above the roller 36, the kicker roller 43 rotates around and cuts this paper. It is constructed so that the trailing edge of the paper is pressed against the belt 38 on the roller 36, and the leading edge of the paper that follows without being decelerated is made to overlap the trailing edge of the paper. The kicker rollers 43 of one set and the kicker rollers 43 of the other set are configured to have the same phase when the paper to be cut is full size, and to have different phases when the paper to be cut is half size. This phase setting is performed by loosening the clamping of the kicker lever 44 and rotating it. Reference numeral 45 denotes an adjusting threaded shaft with a knob that is movably supported by the studs on the left and right side of the frame l and is screwed into the outer circumferential threaded hole of the eccentric bearing 4l. The kicker shaft 4 is rotated due to the eccentric action of the eccentric bearing 41.
2 moves up and down, and the contact pressure of the kicker roller 43 against the paper increases to l.
ift. Note that the phase of the kicker roller 43 is adjusted by changing the phase between the members in the drive system and the kicker shaft 42.
A plurality of levers 47 are fixed in parallel in the axial direction to a lever wheel 46 which is located in front of the frame L and is pivotably mounted between the left and right frames L. A presser roller 48, which lowers at a lower angle, is pivotally mounted. By doing this, the front end of the paper whose girth is pressed by the kicker roller 43 is configured to be pressed by the presser roller 48. Then, the lever 47 is rotated by the f movement so as to move the presser roller 4B to the solid line position in the figure when the paper is full size, and to the chain line position in the figure when the paper is half size. Reference numeral 49 denotes a speed reducer that drives the belt 3B in a non-stop state, and a lever 50 fixed to its human power shaft has a threaded hole at the free end thereof, and a universal joint 52 is connected to the operating shaft 51 with a handle of the example frame. A threaded shaft 53 connected through the is screwed in, and by rotating the operating shaft 5l, the running speed of the belt 38 is reduced to a4t! via the reducer 49. B. Next, the sheeter discharge paper stacking device will be explained.

The wandering paper stacking device 70 includes a pair of left and right columns 7l that are erected along the vertical members of the frame 1.
The support plate 72 is fitted into the guide groove of No. 1 so as to be movable up and down.
A wheeled paper stacking platform 74 on which a paper stacking board 73 is mounted is supported in a horizontal state. On the other hand, a pair of left and right lifting chains 76, which are formed in an endless shape and are driven to run in forward and reverse directions by a motor (not shown), are stretched around a plurality of sprockets 75 that are rotatably attached to the left and right frames 1. The holder 72 is fixed to this chain 76. A plurality of belts 78 are stretched in parallel in the axial direction of the rollers on a plurality of rollers 77 which are rotatably mounted above the paper stacking table 74.
The paper conveyed while being held by the paper stacking table 74 is released from the holding and is guided by the belt 78 and falls onto the paper stacking board 73 and is stacked thereon. The motor is rotated by a signal from a paper surface detection sensor (not shown), and the machine is arranged so that it automatically lowers itself little by little according to the load. In addition, the paper stacking table 74 can be moved between the upper limit position shown by the solid line and the lower limit position shown by the chain line in the figure even when the push button for raising and lowering is operated by switching the automatic/manual changeover switch provided on the operation panel. Go up and down in between. Reference numeral 54 denotes a mitt switch as far as the paper stacking table 74 is raised, which issues a signal and stops the motor when the support plate 72 comes into contact with it at the upper limit of the paper stacking table 74; This is a mitt switch that issues a signal when the plate 72 comes into contact with it and stops the motor as long as the filter paper stacking table is lowered. On the roller side, which is provided near the front end of the paper stacking table 74 at the upper limit position, there is provided a front support 79 that can be moved back and forth in accordance with the paper size by a moving mechanism to be described later. 81 It is constructed so that the front edges of the paper placed on it are brought into contact and aligned. A support holder 85 is fitted to the eccentric portions of both wheels of the roller 37, which is disposed near the rear end of the paper stacking table 74 at the upper limit position, and the paper is fixed to the holder 85. Rear pads 80 formed in an inverted L shape are fixed to a bar 87 extending in the left-right direction in parallel in the axial direction. On the other hand, a lever 8 formed in an L-shape is attached to a bin 88 that is fixedly supported by the frame L.
9 is movably supported, and one free end thereof is pivotally connected to the free end of the abutment holder 85. By doing this, when the a-ra 37 is rotationally driven, the abutment holder 85 rotates eccentrically due to the eccentric action of the eccentric part, and at the same time, the free end of the abutment holder 85 moves up and down by the swinging of the lever 89, so that the back abutment is rotated. 80 includes back and forth motion by combining these two motions. It is configured to be linked to the lower F. As a result, vibrations are applied to the trailing edges of the falling and stacked papers to align them. Further, between the front support 79 and the rear support 80, a bracket 90 formed in a U-shape in plan view is fixed to the left and right frames 1, and a shifter 91 and a guide rod 92 are fixed to the shaft hole of the bracket 900. is supported slidably in the left and right direction of the paper, and the screw shaft 93 screwed into the threaded hole of the shifter 9l and the guide rod 92 have a pair of left and right horizontal plates formed in a vertical plate shape. The support 81 is the paper stacking stand 7
It is supported above both the left and right ends of 4. Reference numeral 94 denotes an L-shaped lever that is supported horizontally on the left and right frame l side and has a roller 95 at its free end engaged with a groove in the shifter 9l, and the other free end and the lever 89 are Wi is connected by an adjustable rod 96. By doing this, when the lever 89 moves, the side support 81 reciprocates with respect to the end while sliding the shifter 91 and guide rod 92, causing vibration. It is configured to give On the other hand, an operating shaft 8 with a knob 82a is rotatably supported by a bracket 60, 61 on the frame L side, with sliding movement restricted.
A bevel gear 63 is pivotally attached to the frame 2, and this bevel gear 76 ( ) meshes with a bevel gear 65 pivotally attached to the bin 64 of the frame l example. is the gear 6 pivotally attached to the shifter 9l.
7, and in this way, the operating shaft 82 is engaged with 1.
When the shifter 9l is rotated through the gear train, the screw shaft 93 screwed into the screw hole advances and retreats, and the side support 81 moves in the left and right direction of the paper! The Il clause is configured to be performed.

The paper discharge and stacking device 70 includes a fork for exchanging a loaded paper stacking table and an empty paper stacking table without stopping the machine when the I loading amount of paper reaches a predetermined value. A pick-up device is attached. That is, on the left and right vertical guides 100 fixed to the opposing vertical surfaces of the left and right frames 1, a fork stand lOl, which is formed into a rectangular frame in plan view by a vertical member 101a and a horizontal member 10lb, is attached to the left and right ends of the vertical guides 100, respectively. A slide handle 102 is slidably fitted and supported so as to be freely raised and lowered, and a slide par 103 that connects the front and rear members of this fork stand 101 has a plurality of forks arranged in parallel in the left-right direction of the paper. 104 is slidably fitted to a supporting member 104a having a fixed base end, and is supported so as to be freely forward and backward in the front and back direction. Vertical member 1 of frame-shaped fork stand 101
Ij on 01a! The pivot point of the lever 105 that is movably connected and the rear side member to of the frame-shaped fork stand 101.
ib is the piston rod l06a. of a pair of air cylinders 106 and 107 connected in series concentrically. l07b
The long hole 105a of the free end of the lever 105 is pivotally connected to the support member at the base end of the fork 104. By doing so, when the air cylinders 106 and 107 are actuated, the lever lO5 is moved, and the fork 104 is configured to advance and retreat with respect to the falling path of the paper. Reference numeral 56 denotes a fork automatic return limit switch which issues a signal when the support member 104a of the fork 104 comes into contact with it at the backward limit, stopping the air cylinders 106 and 107. The air cylinders 106 and 107 are operated by moving the front stopper 79 in accordance with the paper size to operate one or two air cylinders 106 and 107, thereby changing the stroke of the fork 104 to the size of the paper. A device is installed to accommodate this. That is, the support arm 110 of the roller 77 in the center is fixed to a freely rotatable support shaft ll1, and by rotating the support shaft 111, the roller 77 moves from the solid line position to the chain line position. A roller 112 is provided on the support shaft 111. Furthermore, roller 11
A plurality of arms 1 are arranged in parallel in the axial direction at the rear of 2.
A roller 114 is pivotally attached to the roller 13, and several rollers 116 are provided on a support shaft 115 that supports the front roller 77. 117 is the left and right frame l
A slide holder 118 is supported on this guide rail 117 so as to be able to move back and forth in the front and rear directions as shown by the solid line and chain line in the figure, and the slide holder 118 is supported by the guide rail 117 so as to be able to move back and forth in the front and rear directions. 77, support shaft 115, rollers 116, etc., are configured to move forward and backward integrally with this slide holder. Note that the slide holder 118 is
It is configured so that it can be fixed by operating the handle at both extremes of movement. By doing this, when the paper is full size, the belt 78 is stretched as shown by the solid line in the figure, and when the paper is half size, the slide holder 118 is stretched over the guide rail 11.
When the belt 78 is moved along line 7 to the chain line position, the belt 78 contracts in the front-rear direction and can be stretched as shown by line II, so that the belt 78 is configured to correspond to a semi-trial. Slide holder 11B
As a result of the movement of , pre-order 79 is also moved and corresponds to a semi-judgment. Limit switches 119 and 1 emit a signal when the striker on the slide holder 11B comes into contact with the slide holder 11B near both end limits of movement.
20 is provided, and when the limit switch 119 issues a signal, the two air cylinders 106, 10
7 is activated and the limit switch 120 issues a signal, so that only one air cylinder 106 is activated. And both air cylinders 10
6. When 107 is activated, the fork 104 moves to the paper stacking table 74.
It is configured to enter all the way to the front end of the paper and temporarily receive it to accommodate full-size paper. Further, when only the air cylinder 106 is operated, the fork 104 moves to the paper stacking table 7.
Move to the middle position of 4 to correspond to half-trial. Furthermore, a guide 1 is provided in the threaded hole of the slide plate 102.
A screw shaft 108 is rotatably supported by the screw shaft 108, and this screw shaft 108 is drivingly connected to the motor 57 via a bevel gear 109. By doing this, when the fork 104 is switched to automatic lowering by operating the push button at the position where the fork 104 enters the paper falling path,
The motor 57 is rotated by a signal from a paper surface detection sensor that detects the upper end of the paper, and the fork 104 is automatically lowered little by little to stack paper on top of the fork 104. The switch 8 is a fork ascent limit switch fixed to the guide 100, which issues a signal each time the fork 104 rises to its ascent limit and comes into contact with the slide 102, and stops the ascent of the fork 104 via the motor 57. It is structured as follows. Further, 59 is a fork lowering limit switch fixed to the guide l00,
When the fork 104 descends to its lower limit and comes into contact with the slide plate 102, a signal is generated and the lower part of the fork 104 is stopped via the motor 57. When the fork 104 is in the lowered position, the loaded paper is
．． After retreating to move onto 73, ij! When the limit is reached, the motor 57 is rotated via the limit switch 5G and the fork 104 is raised.
An air cylinder 106 moves the fork 104 forward and backward.
A timer is provided in the electric circuit of the electromagnetic valve for , 107 and the electric circuit of the motor that raises the paper stacking table 74.
Press the push button to start fork removal. The configuration is such that the masu paper stand 74 descends and the fork 104 protrudes with a slight delay. The folding machine 3 includes a cutting cylinder 131 disposed on the guide roller 7'F side via a bipping roller 130, and a double-diameter folding cylinder 132 that is in contact with the cutting cylinder 131. double diameter gripper barrel l3,
3 are in contact. A cutting blade 134 is provided on the outer periphery of the cutting drum 131, and a blade receiver 135 and a total of 136 are provided at two locations on the outer periphery of the folding drum 132 at positions corresponding to the cutting blade 134 as the cylinder rotates. It is located in Furthermore, an insertion knife 137 is attached to the outer periphery of the folding drum 132.
36 and is provided with a 90' phase difference in the circumferential direction,
A pair of grip plates 13B are provided on the outer periphery of the grip cylinder 133 at positions corresponding to the insertion knives 137 when the cylinder rotates. In front of the gripper body 133 is an impeller l39.
is provided, and below it is a paper discharge conveyor 140.
is being strung up. With this configuration, the web 4 guided between the cutting cylinder 131 and the folding cylinder 132 via the nipping roller 130 is cut by the cutting blade 134, held by the needle 136, and folded by rotation of the cylinder. Torso 132
The trailing edge of the paper is then cut by a cutting blade 134.

When the cylinder further rotates and the center of the paper held by the needle 136 reaches the contact point between the cylinders 132 and 133, the grip plate 138
The center of the paper is gripped by the gripping plate 138 by the cooperation of the insertion knife 137, and the paper is folded in half by the rotation of the drum and conveyed as signatures. This signature is conveyed onto a paper discharge conveyor 140 by a rotating impeller 139, and then discharged outside the machine. Accumulated.

Next, we will explain the operation of theta. After printing, the dried and cooled web 4 is pulled out by drag rollers 8, 9 via guide rollers 5, 6.7, and conveyed while being held between the front half of the belt 35 and the bell I-31. At this time, the cutter body 11 is rotating and the rotating blades 1, 2, 13 and the fixed blades 15
The web 4 is cut because it revolves so as to be in contact with the web 4. When cutting full size paper, use one row of rotary blades l2.
When installing a chisel and cutting semi-judicial paper, use two rows of rotating blades! Attach 2.1.3. The paper cut in this way is transferred to the belt 3 by the front half of the belt 35 and the belt 31.
5 and the belt 38, and is conveyed while being held between the presser roller 48 and the belt 38 in a decelerating state. At this time, the kicker shaft 42 is rotating and the kicking force is around 4.
3 rotates around, Gijiri is pressed against the belt 38 attached to the roller 36. A subsequent paper that has not been decelerated is conveyed there, so its leading edge is overlapped with the girder of the decelerated paper as it is conveyed. The conveyed paper is guided by a belt 78 and projected above the paper stacking table 74, and falls onto the paper stack IPi 73 and is stacked thereon. At this time,
The front end of the paper is brought into contact with a front support 79 to be aligned, and is vibrated by a side support 81 that reciprocates from side to side to align both left and right ends.

Further, since the rear support 80 is oscillated by the eccentric action of the end of the shaft of the roller 37, the paper is vibrated and its rear end is aligned. The fallen paper is stacked on the paper stacking board 73, and the paper stacking table 74
automatically lowers based on a signal from the paper surface detection sensor that detects the top edge of the loaded paper. When the paper load reaches a predetermined limit and you press the push button to start fork removal, the paper stacking table 7
4 is slightly lowered by a fixed amount, and after a short period of time as measured by the timer, if the paper is full size, the slide holder 118 integrated with the front cover 79 moves to the limit switch 119.
Both air cylinders 106
, 107 operate, the piston rods 105a, l
07a moves forward, and a fork 104 connected to it via a lever 105 enters the paper falling path and temporarily catches the falling paper. In this case, since the paper stacking table 74 is always lowered, the fork 104 never comes into contact with the paper. When the paper starts to be loaded on the fork 104, the paper surface detection sensor detects the upper end of the paper and rotates the motor 57, so the screw shaft 108 rotates via the bevel gear 109, and the fork 104 moves the slide plate 102 to the guide 100. It automatically descends a small amount while being guided by the . When the fork 104 protrudes, the lifting and lowering of the paper stacking table 74 is switched from automatic to manual, so while the paper is stacked on the fork 104, the paper stacking table 74 can be lowered by pressing the push button. Loaded Gizumi board 7
After replacing 3 with an empty paper stacking board 73, the paper stacking table 74 is raised. When the upper end of the raised Gizumi board 73 comes into contact with the paper on the fork 104 and stops, the fork 104 is engaged in the groove provided in the Gizumi board 73. When the fork removal push button is pressed to turn OFF in this state, the air cylinders 106 and 107 are activated and the fork 104 is moved backward, so the paper on the fork 104 is transferred onto the empty paper stack plate 73 and the paper is properly ejected. to move to. Retracted fork 104
is raised when the motor 57 rotates via the limit switch 56 which generates a signal when the support member 104 of the fork 104 comes into contact with it at the backward limit, and returns to the original position.

When the printed matter is changed from a full sheet size to a half sheet size, when the front plate 97 that the front edge of the paper comes into contact with during paper ejection is moved to an intermediate position, the roller 7 that was above the front edge of the paper stacking table 74 is moved.
7 moves to the intermediate position, so reposition the belt 78 as shown by the chain line in Figure 1. After preparing in this way,
After stacking the paper on the paper stacking board 73 in the same way as for the above-mentioned full paper format, press the push button to start fork removal.
Since the slide guide 11B, which is moving to the intermediate position together with the front stopper 79, is in contact with the limit switch 120, one air cylinder is used when the fork 104 moves forward after the paper stacking platform 74 has been lowered by a fixed amount. Only 106 operates,
The fork 104 advances to an intermediate position and temporarily receives the paper. Since the fork 104 is supported by the air cylinder 106, it does not wobble. The operation after this is the same as for the full paper format described above. [Effects of the Invention] As is clear from the above description, the present invention provides a temporary paper tray that temporarily receives stray paper by lowering the paper stacking table loaded with paper and inserting a fork into the falling path of the discharged paper. In the sheeter paper loading device equipped with the device, the fork is supported so as to be freely movable in the downward direction, and a downward movement drive device is provided therefor,
By electrically connecting this vertical movement drive device, the fork advancement/retraction drive device, and the paper stacking table elevation drive device so that they can be switched between automatic and manual operation and operated at a predetermined timing, the fork can move the paper temporarily. Since the fork lowers when receiving, even if the paper to be ejected is cardboard, it is possible to replace the paper stack while temporarily receiving the paper, which improves versatility and allows the fork to move forward and backward, up and down Since the timing of the vertical movement of the paper stacking platform is made more precise through automation, there is no interference between the paper stacking platform and the fork, improving work efficiency and safety.

[Brief explanation of the drawing]

1 to 4 show an embodiment of a sheet discharge sheet stacking device according to the present invention, FIG. 1 is a side view thereof, FIG. 2 is a plan view thereof, and FIG. A side view of the sheeter and the folding machine, and Figure 4 is a flowchart of the paper folding operation. 2... Theta, 56... Fork automatic return limit switch, 57... Fork lifting motor, 5
8... Mint switch as long as the fork rises, 59...
...Fork f lowering limit switch, 74... Paper stacking stand, 100... Guide, 101... Fork stand, 102... Slide plate, 104... Fork, l04a. ...Supporting member, 106, 107...
·Air cylinder.

Claims (1)

[Claims] In a paper discharge paper stacking device for a sheeter equipped with a temporary paper receiving device that lowers a paper stacking table loaded with paper and temporarily receives the discharged paper by entering a fork into the falling path of the discharged paper, the fork is moved up and down. A vertical movement drive device is provided so that the vertical movement drive device can be freely supported, and the vertical movement drive device, the fork advancement/retraction drive device, and the paper stacking platform lifting/lowering drive device can be switched between automatic and manual modes, and a predetermined operation can be performed. A sheet discharge stacking device for a sheeter, characterized in that it is electrically connected so as to operate at a timing.