JPH05208748A - Paper sheet handling device - Google Patents

Abstract

PURPOSE:To automate handling of paper sheets and to relieve the burden of a worker. CONSTITUTION:In a paper sheet handling device for bending laminated paper sheets 1, a pair of conveyors 21A and 21B are interconnected to each other in series. The paper sheet handling device comprises a conveyor device 13 by which at least one side conveyor is freely bent around a connection part, a first clamp roller 35A revolving in linkage with bend of one side conveyor and clamping the paper sheet on one conveyor, a second clamp roller 35B clamping the paper sheet 1 on the other conveyor, a revolving drive motor for bending and driving at least one side conveyor, and a conveyance drive motor 29 for effecting conveyance drive of the conveyors 21A and 21B of the conveying device 13 and inputting the paper sheet and outputting the paper sheet to a subsequent process through the conveyance drive.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet sorting device. Here, the paper sheets that can be handled by the paper sheet handling apparatus of the present invention include paper, plastic sheets, metal sheets, and the like.

[0002]

2. Description of the Related Art In a printing line or the like, when sheets stacked on a pallet are fed one by one to a lower step of a printing machine or the like, paper is preliminarily separated in order to prevent feeding of two sheets. It is planned to supply a stack of sheets on a pallet. Conventionally, this paper separation is said to be done manually.

[0003]

However, in a paper processing line such as a printing line, several tons of paper is used per day, and an operator manually carries in a large amount of paper.
It is a heavy labor to separate the paper and continue to carry it out.

The present invention automates paper separation of paper sheets,
The purpose is to reduce the burden on the operator.

[0005]

SUMMARY OF THE INVENTION The present invention is a paper sheet separating device for bending laminated paper sheets, wherein at least one pair of conveyors are connected in series and at least one of the connecting portions is centered. Conveyor device that allows the conveyor to bend freely, first clamping means that rotates in conjunction with the bending of one conveyor to clamp the paper sheets on the one conveyor, and clamp the paper sheets on the other conveyor Second clamp means, bending drive means for bending and driving at least one of the conveyors, and conveyor drive of the conveyor device, and transport drive means for carrying in and unloading paper sheets by this transport drive. And are provided.

[0006]

The paper sheet is supported by at least a pair of conveyors constituting the conveyor device, clamped on one conveyor by the first clamp means, and clamped on the other conveyor by the second clamp means, At least one of the conveyors is bent along with the bending operation, and the paper is separated.

At this time, the conveyor of the conveyor device is driven not only for the above-described bending operation but also for carrying in and out of paper sheets.

[0008]

1 is a schematic view showing a printing line, FIG. 2 is a side view showing a sheet processing apparatus, FIG. 3 is a plan view of FIG. 2, FIG. 4 is a perspective view showing an essential part of the sheet processing apparatus, and FIG. FIG. 6 is a schematic diagram showing an example of a paper sorting procedure, FIG. 6 is a schematic diagram showing another example of a paper sorting procedure, and FIG. 7 is a schematic diagram showing still another example of a paper sorting procedure.

Prior to describing the embodiment of the present invention, general work procedures (A) to (L) of a printing line will be described (see FIG. 1).

(A) Unpacking The side surface of the packing paper 2 in which the paper 1 is packed is cut open, and the paper bundle is taken out from the cut packing paper 2.

(B) Paper separation The paper separation is performed by bending the unpacked sheet bundle and blowing air between the sheets. This paper separation is for preventing the feeding of two sheets of paper to be fed to the printing machine in the subsequent process and for feeding the sheets one by one.

(C) Paper Alignment A stack of paper that has been subjected to paper sorting is stacked on a pallet 3. In this bar stacking, a stack of sheets is continuously stacked on the pallet 3 without an intermediate plate.

(D) Printing Sheet-by-sheet stacked sheets 1 are fed one by one to a printing machine 4 to perform printing on one side. The printed paper 1 is stacked on the pallet 3. In this plate stacking, a sheet bundle divided into small units is placed between the intermediate plates 6 arranged in multiple stages on the pallet 3 via the spacers 5. That is, in this plate stacking, in order to prevent ink adhesion caused by stacking a large number of sheets of paper 1 immediately after printing on a stick, stacking the printed sheets 1 on the middle plate 6 by a predetermined number of small units is repeated. It is a thing.

When printing is completed only by single-sided printing
Go to (J) and go through (E) to (I) when printing on both sides.
Go to (J).

(E) Stripping The sheets 1 stacked after printing in (D) above are reloaded into bars. That is, the small unit sheet bundle on each middle plate 6 is transferred onto the pallet 3 for stick stacking, and the middle plate 6 from which the sheet bundle is removed is manually or robotically removed.

(F) Reversing paper separation In the process of (E) above, the stack of paper is reversed (reversal so that the remaining one side is the printing surface), and it is bent and blown between the sheets. Paper is treated at.

(G) Removal of Defective Paper In the process of plate removal in (E) above, defective paper mixed in the paper bundle is removed.

(H) Paper Alignment A stack of sheets subjected to reverse paper sorting is stacked on a pallet 3 with a stick.

(I) Printing Sheet-by-sheet stacked sheets 1 are fed to the printing machine 4 one by one, and the remaining one side is printed. The printed paper 1 is stacked on the pallet 3.

(J) Plate removal Paper 1 stacked on the plate after printing in (D) or (I) above
Is transferred to a bar stack.

(K) Removal of Defective Paper In the process of plate removal in (J) above, defective paper mixed in the paper bundle is removed.

(L) Shipping The printed paper 1 is shipped in a stacked state.

However, the embodiment shown here uses the paper processing apparatus 10 shown in FIGS. 2 to 4 in order to automate the paper separating work of (B) and (F) in the above-mentioned printing line. is there.

The sheet processing apparatus 10 includes a front-stage stocker 11 that stacks and supports the sheets 1 and moves up and down, a rear-stage stocker 12 that stacks and supports the sheets 1, and the sheets 1 stacked on the front-stage stocker 11 sequentially in the rear-stage section. The conveyor device 13 conveys the stocker 12 toward the stocker 12. Then, the sheet processing apparatus 1
0 indicates the operation of the front stage stocker 11, the rear stage stocker 12, and the conveyor device 13 for the type of sheet 1 and the sheet processing apparatus 10.
It has a control device 100 that automatically controls according to the operating conditions of the above.

The front-stage stocker 11 is vertically provided with a lift device 14, and additionally includes an extruding device 15 for chucking the uppermost sheet bundle and pushing it out to the conveyor device 13. The stack of sheets is lifted so that it is set at the chuck position by the pushing device 15.

The rear-stage stocker 12 is additionally provided with a pull-in device 17 that moves up and down by a lift device 16 and chucks a bundle of sheets carried out from the conveyor device 13 to pull it to the uppermost layer. The uppermost upper surface is lowered so that the drawing device 17 sets the uppermost surface to the sheet unloading position. The rear stocker 12 is
The back reference plate 18A, the front aligning plate 18B, and the both side aligning plates 19A and 19B are arranged on the four lower sides of the uppermost surface, and the front aligning plate 18B vibrates in small steps by a front aligning drive unit (not shown) to form the uppermost layer. The sheet 1 is struck on the rear reference plate 18A, and the uppermost sheet 1 is struck from both sides by the both-sides aligning plates 19A and 19B which vibrate oppositely in small steps by the both-sides aligning drive unit (not shown) to align the sheets.

The conveyor device 13 is constructed as follows. The conveyor device 13 connects a pair of first and second conveyors 21A and 21B in series via a connecting shaft 22 and also connects both conveyors 21 around the connecting shaft 22.
A and 21B are bendable.

That is, the connection shaft 22 is rotatably supported on the gantry 20. The base of the first arm 24A is bolted to the first pulley 23A that is rotatably supported around one end of the connecting shaft 22, and the support shaft 25A is rotatably supported at the tip of the first arm 24A. Connected shaft 2
A first conveyor 21A is wound around a pulley 26A that is fixed around two and a pulley 27A that is rotatably supported around a support shaft 25A. On the other hand, the base of the second arm 24B is bolted to the second pulley 23B that is rotatably supported around the other end of the connecting shaft 22, and the support shaft 25B is rotatably attached to the tip of the second arm 24B. A pulley 26B that is supported and fixed around the connecting shaft 22 and a pulley 27B that is rotatably supported around the support shaft 25B.
The second conveyor 21B is wound around.

A pulley 28 is fixed to the other end projecting portion of the connecting shaft 22, a pulley 30 fixed to the output shaft of the conveyance drive motor 29, and the conveyance drive belt 3 on the pulley 28.
1 is wound. That is, the rotational force of the transport drive motor 29 rotates the connecting shaft 22, and thus drives the two conveyors 21A and 21B wound around the pulleys 26A and 26B fixed to the connecting shaft 22 to transport the paper 1 and then Try to carry it out to the process.

The first bending drive belt 34A is wound around the first pulley 23A to which the first arm 24A is fixed and the pulley 33A (not shown) fixed to the output shaft of the first turning drive motor 32A. ing. That is, the rotational force of the first turning drive motor 32A rotates the first pulley 23A, and thus the first arm 24 fixed to the first pulley 23A.
By rotating A around the connecting shaft 22, the first
The conveyor 21A is rotated and bent as appropriate.

A second bending drive belt 34B is attached to the second pulley 23B to which the second arm 24B is fixed, and a pulley 33B fixed to the output shaft of the second turning drive motor 32B.
Is wound. That is, the second turning drive motor 32B
Rotating force of the second pulley 23B causes the second arm 24B fixed to the second pulley 23B to rotate about the connecting shaft 22.
1B is appropriately rotated and bent.

Further, the conveyor device 13 is equipped with a first clamp roller 35A which rotates in conjunction with the bending of the first conveyor 21A and clamps the sheet 1 on the first conveyor 21A. That is, the guide rail 36 is attached to the first arm 24A.
A is extended and the slider 3 is attached to the guide rail 36A.
7A is fitted to the slider 37A, and the lifting cylinder 38 is attached to the slider 37A.
The bearing chock 39A, which can be moved up and down along the slide guide 37S by A, is supported.
A first clamp roller 35A is supported by the. The support shaft 25A at the tip of the first arm 24A is rotatable by the first clamp moving motor 40A.
A sprocket 41A fixed to the sprocket and a sprocket 42A rotatably supported by the connecting shaft 22 have a chain 43A.
Is wound around, and the above-mentioned slider 37A is fixed to this chain 43A. As a result, the first clamp roller 35A pivots in conjunction with the bending of the first conveyor 21A, laterally moves by the rotational force of the first clamp moving motor 40A, and moves up and down by the operation of the lifting cylinder 38A to move the first clamp roller 35A. The appropriate position of the sheet 1 on the conveyor 21A is clamped. The bearing chock 39A is the brake 4
4A is provided, and the first clamp roller 35A can be rotationally locked as appropriate.

Further, the conveyor device 13 is equipped with a second clamp roller 35B which rotates in conjunction with the bending of the second conveyor 21B and clamps the sheet 1 on the second conveyor 21B. That is, the guide rail 36 is attached to the second arm 24B.
B is extended and the slider 3 is attached to the guide rail 36B.
7B is fitted, and the lift cylinder 38 is attached to the slider 37B.
A bearing chock 39B that can be raised and lowered along a slide guide 37S (not shown) is supported by B, and a second clamp roller 35B is supported by the bearing chock 39B. The support shaft 25B at the tip of the second arm 24B can be rotated by the second clamp moving motor 40B, and the sprocket 41B fixed to the support shaft 25B and the sprocket 42B rotatably supported by the connecting shaft 22. A chain 43B is wound around the chain 43B, and the above-mentioned slider 37B is fixed to the chain 43B. As a result, the second clamp roller 35B rotates in conjunction with the bending of the second conveyor 21B, and the second clamp movement motor 40 moves.
The sheet is laterally moved by the rotational force of B and moved up and down by the operation of the elevating cylinder 38B to clamp an appropriate position of the sheet 1 on the second conveyor 21B. The bearing chock 39B includes a brake 44B so that the second clamp roller 35B can be rotationally locked at a proper time.

Therefore, the control device 100 includes the lifting device 14, the pushing device 15, the lifting device 16, the retracting device 17, the conveying drive motor 29 of the conveyor device 13, and the swing drive motor 3 of the front stage stocker 11.
2A, 32B, the elevating cylinders 38A, 38B, the clamp moving motors 40A, 40B, the brakes 44A, 44B, etc. are automatically controlled according to the type of the sheet 1 and the operating condition of the sheet processing apparatus 10.

When the paper processing apparatus 10 is used in the above-mentioned printing line (B) paper separating work step, the front-stage stocker 11 supports the unstacked paper 1 in a stacked state and the rear-stage paper stocker 11. The stocker 12 supports the sheets 1 which have been subjected to the paper separation in the conveyor device 13 in a bar-stacked state as described below. Then, the pushing device 15 attached to the front-stage stocker 11 sequentially feeds the sheets 1 on the front-stage stocker 11 to the conveyor device 13 in a block unit (sheet bundle 1A) including a plurality of sheets.

Hereinafter, a procedure for separating paper by the paper processing apparatus 10 will be described (see FIG. 5).

(A) The sheet 1 on the front stage stocker 11 is conveyed by the pushing device 15 in the state of the sheet bundle 1A.
Bring to 3.

(B) The first clamp roller 35A is laterally moved from the original position to clamp the sheet bundle 1A on the first conveyor 21A.

(C) The second clamp roller 35B is laterally moved from the original position to clamp the sheet bundle 1A on the second conveyor 21B almost directly above the connecting shaft 22.

(D) The first clamp roller 35A is rotationally locked by the brake 44A, and the second clamp roller 35B is locked.
The second conveyor 21B (and the second clamp roller 35B) is bent in the positive direction by 67.5 degrees in a state in which it is rotatable.

(E) The second clamp roller 35B is laterally moved to clamp the right end of the sheet bundle 1A on the second conveyor 21B, and the second clamp roller 35B is rotationally locked by the brake 44B. Then, the first clamp roller 35
In a state in which A is rotatable, the second conveyor 21B (and the second clamp roller 35B) is further bent in the positive direction by 67.5 degrees, and the first clamp roller 35A is laterally moved to move the left end of the sheet bundle 1A to the first position. Clamped on the conveyor 21A,
Further, the first clamp roller 35A is rotationally locked by the brake 44A.

(F) The second conveyor 21B (and the second clamp roller 35B) is bent back by 135 degrees. As a result, slack is formed in the middle portion of the sheet bundle 1A. Then, the first conveyor 21A (and the first clamp roller 3
5A) and the second conveyor 21B (and the second clamp roller 35B) are rocked several times in both the forward and reverse directions, and the sheet bundle 1
Blow into A. This is the paper separation.

After this step (F), both clamp rollers 35
A and 35B are raised to move the sheet bundle 1A to the rear end stocker 1
It may be carried out to the side of No. 2, but in this embodiment, the process (G)
~ (I) is applied.

(G) The first conveyor 21A (and the first clamp roller 35A) and the second conveyor 21B (and the second clamp roller 35B) are bent so as to form a mountain shape. As a result, air is removed from the bundle of sheets 1.

(H) Both clamp rollers 35A and 35B are raised to feed the sheet bundle 1 to both conveyors 21A and 21B.
Release the clamp of A.

(I) The first conveyor 21A (and the first clamp roller 35A) and the second conveyor 21B (and the second clamp roller 35B) are bent back to be horizontal.

After completion of this paper separation, the conveyor device 13
Drives both conveyors 21A and 21B to carry out the above-mentioned paper stack 1A that has been separated into the rear stocker 12 side. In this way, the sheet bundle 1A carried out from the conveyor device 13 is pulled out by the retracting device 17 of the rear stage stocker 12 and transferred onto the rear stage stocker 12.

Note that the method of separating paper by the paper processing apparatus 10 may be performed as shown in FIG. The method of FIG. 6 is the same as that of all the steps of FIG.
The steps corresponding to (D) and (E) are modified as follows.

That is, as a modification of FIG. 5 (D), the second clamp roller 35B is rotationally locked by the brake 44B, and the first clamp roller 35A is rotatable, while the second conveyor 21B (and the second clamp 21B) is rotated. Roller 35
B) is bent in the positive direction by 67.5 degrees.

As a modification of FIG. 5 (E), the first clamp roller 35A is moved laterally to clamp the left end of the sheet bundle 1A on the first conveyor 21A, and the first clamp roller 35A is applied to the brake 44A. Lock rotation. Then, in a state in which the second clamp roller 35B is rotatable, the second conveyor 21B (and the second clamp roller 35B
B) is further bent in the positive direction by 67.5 degrees, and the second clamp roller 35B is laterally moved to move the right end of the sheet bundle 1A to the second position.
The conveyor 21B is clamped, and the second clamp roller 35B is rotationally locked by the brake 44B.

Further, the method of separating paper by the paper processing apparatus 10 may be performed as shown in FIG. The method of FIG. 7 is the same as the method of FIG. 5 (A) to (I)
The steps (C) to (E) (bending only the second conveyor 21B) are modified into a chevron bending step for both the conveyors 21A and 21B. That is, each step of FIGS. 7A to 7G is as follows.

(A) Same as FIG. 5 (A). (B) Same as Fig. 5 (B). (C) The first clamp roller 35A clamps the left end of the sheet bundle 1A to the first conveyor 21A, and the second clamp roller 35B clamps the right end of the sheet bundle 1A to the second conveyor 21B.
Clamp to. Then, both clamp rollers 35A, 3
5B is in a rotatable state, the first conveyor 21A (and the first clamp roller 35A) and the second conveyor 21B
(And the second clamp roller 35B) are bent so as to form a mountain shape. After that, both clamp rollers 35A, 3
5B is rotationally locked by the brakes 44A and 44B.

(D) Same as FIG. 5 (F). (E) Same as Fig. 5 (G). (F) Same as Fig. 5 (H). (G) Same as Fig. 5 (I).

The operation and effect of this embodiment will be described below. The sheet bundle 1A is supported by a pair of conveyors 21A and 21B forming the conveyor device 13, clamped to the first conveyor 21A by the first clamp roller 35A, and clamped to the second conveyor 21B by the second clamp roller 35B. And at least one conveyor 21
Along with the bending operation of A and 21B, the sheets are bent and the paper is separated.

At this time, the conveyors 21A and 21B of the conveyor device 13 are not only bent as described above, but also are driven to carry in and out the sheet bundle 1A.

Due to the above, carrying in the sheet bundle 1A,
A series of operations for separating paper and carrying out can be automated to reduce the burden on the operator.

As described above, the conveyor device 13 itself, which serves as a paper separating device, also has a function of conveying the sheet bundle 1A, so that no special conveying device is required and the device can be simplified.

[0058]

As described above, according to the present invention, it is possible to automate the paper separation of paper sheets and reduce the burden on the operator.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a print line.

FIG. 2 is a side view showing a sheet processing apparatus.

FIG. 3 is a plan view of FIG.

FIG. 4 is a perspective view showing a main part of the sheet processing apparatus.

FIG. 5 is a schematic diagram showing an example of a paper separating procedure.

FIG. 6 is a schematic view showing another example of a paper separating procedure.

FIG. 7 is a schematic diagram showing still another example of the paper sorting procedure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper (paper sheet) 13 Conveyor device 21A, 21B, Conveyor 29 Conveyance drive motor (conveyance drive means) 32A, 32B Rotation drive motor (bending drive means) 35A 1st clamp roller (1st clamping means) 35B 2nd Clamp roller (second clamp means)

Claims (1)

[Claims] 1. A paper sheet separating device for bending laminated paper sheets, wherein at least one pair of conveyors are connected in series,
A conveyor device that allows at least one of the conveyors to freely bend around the connecting portion, a first clamping means that rotates in conjunction with the bending of the one conveyor, and clamps the paper sheets to the one conveyor, and the other. Second clamping means for clamping the paper sheets on the conveyor, bending drive means for bending and driving at least one of the conveyors, and conveyor driving of the conveyor device. A paper sheet separating device having a conveyance driving means for carrying out the sheet.