JP2552489B2 - Stacked sheet unloading device - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet stacking and unloading device for stacking and unloading sheets such as sheets.

[Prior art and its problems]

Conventionally, it has been difficult with the current technology to continuously and automatically accumulate paper in a processing step of manufacturing Japanese paper having a basis weight of about 45 g or less into an oval paper (sheet-shaped paper). The reason for this is the current drop accumulation method. That is, in the dropping and accumulating method, there is a problem of paper alignment, which is considered to be caused by the generation of repulsive force or the adhesion force due to static electricity. Further, as a drawback of the drop accumulation method, there is a paper arrival trouble due to air resistance at the time of drop. In the drop stacking method, the trailing edge of the paper is used as a starting point to drop and stack the paper, but at this time, since the strength of the dropped paper is smaller than the air resistance, the air resistance causes The corners of the leading edge of the paper are bent, the waist is bent in the lateral direction, and the paper is jammed. Further, conventionally, since the stack after the drop stacking is immediately carried out to the next step by the conveyer conveyor, the individual sheets of the stack are not well aligned, and the air between the individual sheets only escapes. There is no time to spare, and the stack is being transported in an unstable state. Therefore, there is a drawback that the aggregate easily collapses during unloading. In view of such conventional problems, the present invention is capable of automatically accumulating sheet sheets such as paper without causing troubles due to static electricity, corner bending due to air resistance, and the like,
When carrying out the stacked body after stacking the single sheets, while securing sufficient time for the air to escape between the individual sheets and allow the stacked body to be stable, it is possible to quickly carry out the individual stacked bodies in sequence. Moreover, it is an object of the present invention to provide a sheet stacking and conveying apparatus that can prevent the entire apparatus from increasing in size and can be downsized.

[Means for Solving the Problems]

The sheet stacking / unloading device according to the present invention is configured such that each sheet A2 supplied in an overlapped state in which a subsequent sheet A2 is inserted below a preceding sheet A2.
At the stacking position 55 and sequentially stacks the stacking conveyor 49 downwardly, and a stacking transfer conveyor 50 that is disposed on the lower side of the stacking conveyor 49 and rotates in the opposite direction to the stacking conveyor 49, and stacking at the stacking conveyor 49. Single sheet
The stack A3 of A2 is provided with a transfer device 52 that transfers from the stack conveyor 49 onto the carry-out transfer conveyor 50, and a carry-out device 51 that carries out the stack A3 on the carry-out transfer conveyor 50 to the next step. The transfer device 52 has an ascending path 67 on the accumulation conveyor 49 side.
And a downward path 68 on the side of the carry-out transfer conveyor 50, a vertical path 65 is formed by connecting upper and lower ends of the lower path 68 with an upper path 69 and a lower path 70 that are longer than the respective paths 6768, and along the circulation path 65. A plurality of transfer members 66 that intermittently circulate and move in a substantially horizontal state and that lifts the stack A3 on the stack conveyor 49 and places it on the transfer transfer conveyor 50 are provided inside the transfer device 52. 50 and an unloading device 51 are arranged.

【Example】

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall layout view of a continuous cutting and accumulating apparatus equipped with a sheet sheet accumulating and discharging apparatus according to the present invention. Mainly, a shaft attachment portion 1 of a winding base paper A and a base paper A fed from the shaft attachment portion 1 are shown. Detection unit 2 for detecting the tension of the base paper, a vertical cutting unit 3 for slitting the base paper A in the vertical direction, a horizontal cutting unit 4 for cutting the slit web in the horizontal direction, and a sheet after cutting is sequentially overlapped. It is composed of an overlapping section 5, a stacking and carrying-out section 6 for stacking and stacking the sheet from below, and the like. A plurality of winding base papers A are rotatably attached to the shaft attachment portion 1 by a support shaft (not shown). A brake for braking is provided side by side with each support shaft, the tension of the unrolled base paper A is detected by the detection roll of the tension detector 2, and the brake is controlled by a control device (not shown).
Each base paper A is rewound and fed out in a predetermined tension state. The longitudinal cutting unit 3 is a base paper A fed from the shaft-attaching unit 1.
Is cut in the vertical direction so as to form a plurality of strips (hereinafter referred to as web A1), and is provided with a plurality of slitter knives arranged at predetermined intervals in the horizontal direction.
Each slitter knife is adapted to rotate at a speed faster than the moving speed of the web A1. The lateral cutting portion 4 is for laterally cutting the moving web A1 in a predetermined length, and as shown in FIG. 2, a rotary cutter 7 constitutes a main portion thereof. Draw roll 8 and nip roll 9 on the good side
However, the first conveyors 10 are respectively arranged on the lower side. The draw roll 8 is laterally arranged so as to pull out a plurality of webs A1 and convey and feed the web A1 to the rotary cutter 7. The draw roll 8 is rotationally driven about the axis by a drive unit (not shown). On the upper side of the draw roll 8, a nip roll 9 is rotatably arranged so as to firmly sandwich the web A1 with the draw roll 8. The nip roll 9 has a rubber-wrapped surface,
In order to prevent wrinkles from occurring in the web A1, a plurality of spirally wound grooves 11 are formed on the outer peripheral surface about the center in the axial direction. A pair of upper and lower feed rolls 12 are provided between the horizontal cutting section 4 and the draw roll 8. The feed roll 12 is configured to lightly clamp the web A1 from above and below and convey and supply the web A1 to the rotary cutter 7 at a speed faster than that of the draw roll 8. As shown in FIG. 2, the rotary cutter 7 includes a top knife 13 that serves as a rotary blade and a bottom knife that serves as a fixed blade.
It is composed of 14 and. The top knife 13 is a top knife body that is rotatably supported around the horizontal axis.
It is equipped with an adjustable knife spacing. Protruding rough surfaces 16 are formed on the outer peripheral surface of the top knife body 15 at appropriate intervals, so that when the top knife body 15 rotates at a high speed, the surface side thereof does not become a negative pressure state due to centrifugal force. The bottom knife 14 is attached to the upper end of a bottom knife body 20 arranged below the top knife body 15, and is configured so that the distance between the bottom knife 14 and the top knife 13 can be adjusted. A web passing table 19 is provided on the upper surface of the bottom knife body 20 so as to form a web passage with the top knife body 15. The web passing table 19 is formed by recessing the upper surface in an arc shape from the tip side of the bottom knife 14 toward the receiving port 22 side of the first conveyor 10, and at the end side of the web passing table 19, the first conveyor 10 is provided. A plurality of air nozzles 23 are provided in the lateral direction so as to open toward the transfer port 22 of. The air nozzle 23 ejects air toward the transfer port 22 side of the first conveyor 10 to make the upper surface side of the web transfer table 19 in a negative pressure state, and the front end side of the web A1 conveyed to the first conveyor 10 side is a web. The transfer table 19 is guided along the upper surface thereof to the transfer port 22 side of the first conveyor 10. Further, the air pressure ejected from the air nozzle 23 is appropriately adjusted in accordance with the rotation speed of the first conveyor 10 by an air valve 25 provided in a pipe 24 communicating with the air nozzle 23. The first conveyor 10 is composed of a belt conveyor having a pair of upper and lower belts 26 for nipping and conveying the web A1 in a sliding state, and each of the belts 26 with respect to the web A between the draw roll 8 and the nip roll 9. The draw roll 8 is rotated in the transport direction at a speed higher than the peripheral speed of the draw roll 8 so as to appropriately apply a tensile force. When the web A1 is cut by the top knife 13 and the bottom knife 14 in the middle of the first conveyor 10, the web A1 is almost simultaneously cut.
A pair of upper and lower pulling rolls 27 are provided so as to more strongly pull the moving web A1 in a tensioned state by sandwiching. Each of the pulling rolls 27 makes the leading end of the web A1 first when cutting.
The belt 26 of the conveyor 10 is sandwiched via the feeding portion side of the belt 26, and is disposed on the lower side by the cutting length of the web A1 from the lateral cutting portion 4. In addition, each tension roll 27
Is configured to be movable and adjustable in the moving direction of the web A1 in accordance with the cutting length of the web A1 by rotating a handle provided at the shaft end of the moving gear that engages on the fixed rack gear. . The web A1 (hereinafter referred to as a sheet A2) which has been cut into a sheet shape by being cut to a predetermined cutting length by the lateral cutting section 4 is
It is sandwiched by a pair of upper and lower belts 26 of the conveyor 10 and is conveyed to the pinch roll 28 side while keeping an appropriate space between it and the subsequent sheet A2. The pinch roll 28 is movably arranged at an appropriate position, and the single sheet A2 is firmly sandwiched via the feeding portion side of the belt 26 of the first conveyor 10 so that the single sheet A2 can be sandwiched. A pair of upper and lower parts are provided so as to be conveyed and supplied to the overlapping part 5 at the feeding speed of. As shown in FIG. 3, the overlapping section 5 includes a pair of upper and lower kicker rolls 29 arranged in the middle of the first conveyor 10 and a pair of upper and lower second conveyors 30 arranged on the lower side of the first conveyor 10. And the first and second conveyors 10,3
It is composed of an upper overlap roll 31 and a lower overlap roll 32 which are arranged between zero. The pair of upper and lower kicker rolls 29 are the first when rotating normally.
It rotates at about the same speed as the conveyor 10 or at a preferable speed, but it speeds up faster than the first conveyor 10 in place, and speeds up and slows down to rotate at a reduced speed in the space between the individual sheets A2. It is adapted to be driven via means 45. As shown in FIGS. 4 and 5, the acceleration / deceleration driving means 45 includes an input shaft 34 having an input gear 33 and a revolution differential gear 3.
5, arm rod 36, cam follower 37, cam body 38 and the like. The input shaft 34 is rotatably supported by a fixed frame via bearings, and the power output from a timing adjustment differential (not shown) is input via an idler. The kicker roll 29 is rotated once. The input shaft 34 rotates in the direction of the arrow in FIG. 5, and the revolution differential gear 35 meshes with the input gear 33. The revolution differential gear 35 is rotatably attached to a bracket 39 fixed to the lower kicker roll 29 at a proper position via a pin 40a. The revolution differential gear 35 is integrally formed on one end of the arm rod 36, and a cam follower is formed on the other end of the arm rod 36.
37 is pivoted. The cam body 38 includes an arcuate cam surface 40 formed concentrically with the input shaft 34 and a linear cam surface 41 formed in a straight line on the inner circumference, and is fixed to a fixed frame. Each cam surface 40, 41 of the cam body 38 is a cam follower 3 of the arm rod 36.
The cam follower 37 guides the 7 and the arc cam surface 40
When the cam follower 37 is on the straight cam surface 41, the kicker roll 29 is rotated at a normal constant speed when
As shown in FIG. 6, the arm rod 36 is rotated around the pin 40a in the direction of the arrow on the front half side thereof to rotate the kicker roll 29 at an increased speed, and on the latter half side thereof is decelerated to the normal rotation. Note that in FIG. 6, the kicker roll 29 accelerates to end the overlap of the sheet A2, and the succeeding sheet A2.
The state when it is in the interval with A2 is shown. The lower kicker roll 29 is arranged on the axis of the input shaft 34, one end of which is rotatably supported by a needle bearing inserted in the inner diameter hole of the input gear 33, and the other end of which is rotatably supported by a ball bearing. Has been done. The upper kicker roll 29 is rotatably supported by bearings at both ends, and is configured to rotate synchronously with the lower kicker roll 29 via a gear (not shown). The belt 42 of the second conveyor 30 is configured to rotate at a slower speed than the belt of the first conveyor 10.
Further, the second conveyor 30 is provided with a catch roll 43 so as to firmly sandwich the sheet A2 via the feeding portion side of the belt 42 thereof. The upper overlap roll 31 has arcuate recesses 46 formed at appropriate positions on the circumferential surface, and the lower overlap roll 32
A plurality of claws 47 are provided on the upper part of the upper overlap roll 31 and the lower overlap roll 32,
The concave portion 46 and the claw 47 are configured to rotate in the transport direction in synchronization with each other so as to coincide with each other during rotation. The upper and lower overlap rolls 31 and 32 are configured to rotate once each time the rotary cutter 7 makes one rotation, and the driving unit thereof feeds the sheet A2 that moves during driving. On the other hand, a differential for timing adjustment for matching the concave portion 46 and the claw 47 is incorporated. In the overlapping section 5, the preceding sheet A2
When the leading end of the sheet passes between the upper overlap roll 31 and the lower overlap roll 32, the first conveyor 10
Belt 42 of the second conveyor 30 rotating at a slower speed than
Enter in between. When the leading edge of the preceding sheet A2 is firmly sandwiched by the pair of upper and lower catch rolls 43, the trailing edge of the sheet A2 is lifted by the claw 47 of the lower overlap roll 32. At this time, since the kicker roll 29 is accelerated and rotated by the acceleration / deceleration driving means 45, the subsequent sheet A2 sandwiched by the kicker roll 29 is higher than the normal feed speed by the accelerated rotation of the kicker roll 29. The sheet is rapidly sent at a high speed and is inserted under the rear end of the preceding sheet A2. Therefore, since the lifting operation by the claw 47 of the lower overlap roll 32 and the feeding action by the acceleration of the kicker roll 29 are performed in synchronization, the feeding speed of the front and rear sheet A2 becomes relatively high. , Preceding sheet A2
The leading end of the succeeding sheet A2 can be quickly inserted into the lower side of the rear end without interference, and the individual sheets A2 can be sequentially and reliably overlapped. The pinch roll 28, the kicker roll 29, and the catch roll 43 are configured to move in the feeding direction by turning a gear that meshes with a fixed rack gear by a handle, and if the length of the sheet A2 is different, Each roll position can be adjusted accordingly. As shown in FIGS. 7 and 8, the stacking and carrying-out section 6 is provided on the lower side of the second conveyor 30 and a pair of upper and lower timing rolls 48 provided on the rear end side of the second conveyor 30. A stacking conveyor 49, a carry-out transfer conveyor 50 and a carry-out device 51, a transfer device 52 for transferring the stack A3 on the stacking conveyor 49 onto the carry-out transfer conveyor 50, and a stopper 53.
And an air nozzle 54. The timing roll 48 normally rotates in the transport direction at the speed of the second conveyor 30 or at a slightly slower preferable speed to supply the overlapped sheet A2 onto the stacking conveyor 49. Each time the stacked sheet A2 reaches a predetermined stacking set number, the sheet is decelerated and the sheet A2 is unwrapped at the position of the set number, and the preceding sheet A2 and the subsequent sheet are stacked. The kicker roll 29 is configured to be accelerated / decelerated by a drive unit (not shown) similar to the acceleration / deceleration drive unit 45 of the kicker roll 29 so as to form an appropriate front-rear space with respect to the sheet A2. The stacking conveyor 49 stacks the individual sheet A2 supplied from the second conveyor 30 in an overlapped state, and at the stacking position 55 on the trailing end side, the succeeding sheet below the preceding single sheet A2.
This is for accumulating the individual sheet A2 from the lower side while sequentially pulling in the A2. As shown in FIG. 8, the stacking conveyor 49 includes an upper drive roll 56 formed to have a working width, a plurality of lower end rolls 57 disposed on the lower side, and the drive rolls 56 and It is provided with a plurality of belts 58 wound between the tip rolls 57 and has a comb-like shape having a gap 59. The drive roll 56 is rotatably supported between the left and right main bodies 60, and each tip roll 57 is rotatably supported by the tip of a support arm 61 in a cantilever manner. Each support arm 61 is a left and right body
It is fixed by two support rods 62 supported between 60. The carry-out transfer conveyor 50 is for carrying out the stack A3 in which the sheet A2 is stacked to the carry-out device 51, and is arranged separately on the lower side of the stack conveyor 49 and in the opposite direction to the stack conveyor 49. It is configured to rotate. The carry-out transfer conveyor 50 has the same structure as the accumulating conveyor 49. The carry-out device 51 carries out the stack A3 on the carry-out transfer conveyor 50 to the next step, and is arranged at the end of the carry-out transfer conveyor 50, for example, the stack A3 in a direction perpendicular to the carry-out direction of the carry-out transfer conveyor 50. Is sent. As shown in FIGS. 7 and 8, the transfer device 52 has a circulation path 65 configured by arranging two chain rows 63 and 64 on both left and right sides, and a substantially horizontal state along the circulation path 65. And a plurality of transfer members 66 that intermittently circulate and move the stack A3 on the stack conveyor 49 to lift and stack the stack A3 on the carry-out transfer conveyor 50. The circulation path 65 is an ascending path 67 arranged on the accumulation conveyor 49 side and a descending path arranged on the carry-out transfer conveyor 50 side.
68, and an upper path 69 and a lower path 70 that connect the upper and lower ends of these paths 67, 68 in a substantially horizontal direction. The upper path 69 and the lower path 70 are the ascending path 6
7. It is longer than the descending path 68. Therefore, the circulation path 65 is a rectangular path that is long in the horizontal direction. The left and right chain chains 63 and 64 are respectively arranged at the four corners of the circulation path 65, and the four sprocket wheels 71 and 72 are arranged in a staggered manner.
A clutch brake (not shown) attached to the timing roll 48 is driven to intermittently rotate synchronously. As shown in FIG. 8, each transfer member 66 is composed of a base rod 73 whose both ends are pivotally connected to the left and right chain rows 63, and a plurality of fork main bodies 74 fixed to the base rod 73. The front ends of the fork bodies 74 at the left and right ends are pivotally connected to the left and right chain rows 64. In addition, the fork body 74 is the accumulation conveyor 49
And a gap 59 between the belts 58 of the carry-out transfer conveyor 50. The carry-out transfer conveyor 50 and the carry-out device 51 are inside the transfer device 52, that is, between the upper path 69 and the lower path 70.
It is arranged from the descending path 68 side toward the accumulation conveyor 49 side. The stopper 53 is for stopping each sheet A2 on the stacking conveyor 49 at the stacking position 55 so that the subsequent sheet A2 is sequentially drawn below the preceding sheet A2 by the stacking conveyor 49. It is a thing. The air nozzle 54 is for ejecting air to the upper surface of the subsequent sheet A2 in the vicinity of the rear of the accumulating stack A3 and for floating the accumulating stack A3 on the stacking conveyor 49. When stacking the single-wafer sheets A2 in the stacking / unloading unit 6, the transfer device 52 is stopped with one of the transfer members 66 corresponding to the lower side of the stacking position 55 of the stacking conveyor 49. . Then, when the individual sheet A2 in the overlapped state is supplied onto the stacking conveyor 49, the first sheet A2 is fed.
A2 contacts the stopper 53 at the stacking position 55. Then, after the next sheet A2 is drawn below the previous sheet A2 by the stacking conveyor 49, it abuts on the stopper 53 and stops. After that, the succeeding single-wafer sheets A2 are sequentially conveyed to the accumulation conveyor.
By 49, it is drawn under the sheet A2 on the bottom surface of the stack A3 being stacked, and is stacked downward. At this time, if the speed of the collecting conveyor 49 is sufficiently high,
Since each sheet A2 is drawn into the lower side of the sheet A2 of the stack A3 being accumulated by the stacking conveyor 49 together with the surrounding air, the frictional resistance between the sheets A2 is not a problem. Therefore, the individual sheets A2 can be smoothly and reliably stacked without causing a trouble due to static electricity.
Further, since the sheet is drawn in by the accumulating conveyor 49, the single sheet A2 does not receive a large air resistance. Therefore, the edge of the sheet A2 is not bent at the corner, folded at the center, or clogged. On the other hand, if air is ejected from the air nozzle 53 onto the upper surface of the sheet A2, the aggregate A3 that is being accumulated floats, and thus the frictional resistance between the sheets A2 can be further reduced.
Therefore, the end portions of the individual sheets A2 can be neatly aligned and stacked, which is effective when the stacking amount is large or when the individual sheets A2 are thin paper. When the stack A3 on the stack conveyor 49 reaches the set amount,
The timing roll 48 decelerates to open a space between the adjacent sheet A2 in front and rear at the set number of positions. Then, when the sheet A2 on the lower side of the interval is pulled in to the lower side of the stack A3 by the stacking conveyor 49 and the stacking is completed, at the same time, the transfer device 52 intermittently rotates by one pitch. Therefore, the transfer member 66 on the lower side of the stacking position 54 does not lift the stack A3 on the stacking conveyor 49 from the lower side and ascends to receive the stack A3 from the stacking conveyor 49. Then, when the next transfer member 66 comes under the stacking position 55 of the stacking conveyor 49, the transfer device 52 stops, and the same operation is repeated thereafter. When the transfer device 52 intermittently rotates, the aggregate A3 on each transfer member 66 intermittently moves in the substantially horizontal direction on the upper path 69 side and intermittently descends on the descending path 68 side. Then, when the transfer member 66 descends along the descending path 68, if the transfer member 66 falls below the unloading transfer conveyor 50, the aggregate A3 on it is placed on the unloading transfer conveyor 50. Then, it is carried out from the carry-out transfer conveyor 50 through the carry-out device 51 to the next process. The stack A3 is intermittently sent by the transfer device 52, and there is sufficient transfer time to reach the carry-out transfer conveyor 50 from the stack conveyor 49, so that each sheet A2 of the stack A3 during this period. The air between them escapes and the aggregate A3 becomes stable.

【The invention's effect】

According to the present invention, each sheet A2 supplied in the overlapped state in which the subsequent sheet A2 is inserted below the preceding sheet A2 is sequentially downwards by the stacking conveyor 49 at the stacking position 55. I'm pulling in and collecting it, so
Without causing troubles due to static electricity, such as the conventional dropping and accumulating method, and corner breaks of the sheet A2 due to air resistance,
The individual sheets A2 can be stacked smoothly and surely. Further, the stack A3 of the single sheets A2 stacked by the stack conveyor 49 is carried out from the stack conveyor 49 and transferred to the stack conveyor.
While the transfer device 52 for transferring onto the 50 is provided, this transfer device
52 is provided with a plurality of transfer members 66 that intermittently circulate and move along a circulation path 65 in a substantially horizontal state, and by the cyclic movement of the transfer members 66, the stack A3 on the stack conveyor 49 is lifted to be transferred. Since it is placed on the conveyor 50,
Transfer of stack A3 from stack conveyor 49 Transfer conveyor 50
It is possible to secure a sufficient transfer time before transferring to. Therefore, the stack A3 after stacking is immediately collected on the stacking conveyor 49.
The transfer time is longer than that of transferring from the transfer conveyor 50 to the transfer transfer conveyor 50, and the air between the individual sheets A2 can be removed during this time, which improves the stability of the stack A3 and improves the transfer transfer conveyor. It is possible to prevent the collapse of the integrated body A3 when it is sent to the next process through the 50 and the unloading device 51. Moreover, there are a plurality of transfer members 66, and each transfer member 66 is
While intermittently circulating along the circulation path 65, the stacks A3 are sequentially transferred from the stacking conveyor 49 to the unloading transfer conveyor 50, so while ensuring a sufficient transfer time. The stack A3 on the stack conveyor 49 can be quickly taken out. In addition, the circulation path 65 is an ascending path on the accumulation conveyor 49 side.
67 is provided with a descending path 68 on the carry-out transfer conveyor 50 side, and the stacking member A3 is lifted up and down along the respective paths 67 and 68, and the stack A3 is lifted from the stacking conveyor 49 and carried out. Since it is mounted on the transfer conveyor 50, the stack A3 can be delivered and received very smoothly. Further, since the upper path 69 and the lower path 70 connecting the upper and lower ends of the ascending path 67 and the descending path 68 of the circulation path 65 are configured to be longer than the ascending path 67 and the descending path 68, the circulation path 65 Even when the length is increased to secure a sufficient transfer time, the vertical size of the entire apparatus can be reduced. Moreover, while lengthening the upper path 69 and the lower path 70,
Since the rotation direction of the carry-out transfer conveyor 50 is opposite to the rotation direction of the accumulating conveyor 49 and the transfer conveyor 50, the transfer device 51, and the transfer device 52 are arranged, the transfer device 52 is disposed.
In spite of the fact that these are used, the length of the entire device can be shortened and the vertical dimension can be reduced in comparison with the case where these are simply arranged in series. The size can be reduced. Further, since the carry-out transfer conveyor 50 rotates in the direction opposite to that of the stacking conveyor 49, even if a stopper 53 for stacking is provided on each transfer member 66 side, the stack A3 sent to the carry-out device 51 side by the carry-out transfer conveyor 50. And the stopper 53 for collecting do not interfere with each other. Therefore, the stopper 53 can be provided on the stacking conveyor 49 side or the like, and each transfer member
Since it can be installed on the 66 side and can be designed according to the installation site, specifications, etc., the degree of freedom in design is significantly improved.

[Brief description of drawings]

FIG. 1 is an overall layout view of an embodiment of the present invention, FIG. 2 is a sectional side view of a lateral cutting portion, FIG. 3 is a sectional side view of an overlapping portion, and FIG. 4 is a perspective view of a kicker roll driving portion. 5 and 6 are side views of the kicker roll driving unit, FIG. 7 is a side view for explaining the stacking and discharging unit, and FIG. 8 is a plan view for explaining the structure of the stacking and discharging unit. Is. A2: single sheet, A3: stack, 49: stack conveyor, 50: transfer transfer conveyor, 51: transfer device, 52 ...
… Transfer device, 55 …… accumulation position, 65 …… circulation path, 66 ……
Transfer member, 67 ... ascending path, 68 ... descending path, 69 ... upper path, 70 ... lower path.

Claims (1)

(57) [Claims] 1. Sheet-by-sheet sheets (A2) supplied in an overlapped state in which a succeeding sheet-by-sheet (A2) is inserted under a preceding sheet-by-sheet (A2), successively at a stacking position (55). A stacking conveyor (49) that is pulled down and stacked, and a transfer transfer conveyor (50) that is arranged on the lower side of the stacking conveyor (49) and that rotates in the opposite direction to the stacking conveyor (49).
And the single-wafer sheets (A
Transfer device (52) for transferring the stack (A3) of 2) from the stack conveyor (49) to the carry-out transfer conveyor (50).
And a transfer device (51) for transferring the aggregate (A3) on the transfer transfer conveyor (50) to the next step, and the transfer device (52)
Between the upper and lower ends of the ascending path (67) on the accumulation conveyor (49) side and the descending path (68) on the unloading transfer conveyor (50) side, which is longer than each of these paths (67, 68). (69) and the lower path (70) are connected to form a circulation path (6
5) and intermittently circulates in a substantially horizontal state along the circulation path (65) and lifts up the stack (A3) on the stack conveyor (49) to carry out the transfer conveyor (50).
A stack of single-sheets, characterized by comprising a plurality of transfer members (66) to be placed on the transfer device (52), and a transfer transfer conveyor (50) and a transfer device (51) arranged inside the transfer device (52). Unloading device.