JPH068666A - Paper piece treatment apparatus - Google Patents

Abstract

PURPOSE:To obtain a paper piece treatment apparatus reducing butlkiness even when paper pieces bound by a stapler are superposed one upon another by arranging a paper piece receiving part, a paper piece arranging means, a paper piece binding stapler, a treated paper piece receiving part and a paper piece binding position altering means. CONSTITUTION:A paper piece treatment apparatus 1 is provided so as to face to the paper piece discharge part of an image forming apparatus and a paper piece folding part 3 is arranged to the paper piece treatment apparatus so as to be received in the frame body 13 vertically provided on the upper surface of a truck 12 having castors 11. Further, a discharged paper piece receiving part 4 receiving paper pieces straightly discharged without folding or perforating the paper pieces is arranged and a processing part 5 binding or perforating the paper pieces supplied through the paper piece folding part 3 is arranged and a treated paper piece receiving part receiving the paper pieces treated by the processing part 5 is arranged and a control panel capable of selecting various processings or a control unit performing predetermined control is arranged. At this time, a stapler binding arranged paper pieces is arranged to the processing part 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying machine, a printer,
The present invention relates to a paper piece processing apparatus for binding a paper piece (copy paper / film sheet) discharged from an image forming apparatus such as a plotter or a printing machine with a stapler.

[0002]

2. Description of the Related Art Conventionally, a paper piece processing apparatus with a stapler is
A plurality of pieces of paper supplied from the image forming apparatus are aligned and bound by a stapler, but the binding position is constant.

[0003]

Therefore, when a stack of paper sheets bound with staples is piled up, since the staples are at the same position, only that portion becomes thicker. Further, since the staple positions are the same, the staples are easily caught and it is difficult to align them. Even when aligned, it was easy to collapse because only the staple position was thicker.

Further, when binding to a file or the like, the number of sheets to be stored may be reduced because only the staple position is thick.

It is an object of the present invention to provide a paper piece processing apparatus which is less bulky even when stacking a paper piece bundle stapled.

[0006]

In order to achieve the above-mentioned object, the present invention comprises a storage portion for storing a plurality of paper pieces, and an alignment means for aligning the side edges of the stack of paper sheets stored in the storage portion. A stapler for binding the bundle of papers aligned by the aligning means, a processing paper piece storage portion for storing the bundle of papers bound by the stapler, and a changing means for appropriately changing the position for binding by the stapler for each bundle of papers are provided. .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a paper piece processing apparatus to which the paper piece processing method of the present invention is applied will be described below with reference to the drawings.

<Structure> As shown in FIG. 1, the paper piece processing apparatus 1 in this embodiment receives a paper piece from an image forming apparatus 2 such as a copying machine, folds the paper piece into three (Z-fold), and stacks a desired number of sheets. At this point, processing such as punching and stapling is performed and the sheets are stored.

As shown in FIGS. 1 to 3, the paper piece processing apparatus 1 is connected to face the paper piece discharge means of the image forming apparatus 2 and is erected on a frame 12 which is erected on a carriage 12 having casters 11.
A paper folding unit 3 that folds a paper piece into three, a paper ejection storage unit 4 that stores a paper piece that is ejected straight without performing paper folding or punching, and a paper piece that is fed through the paper folding unit 3 A processing section 5 for making holes, a processing paper piece storage section 6 for storing the paper pieces processed by the processing section 5, a control panel capable of various processing selections as shown in FIG. 13, and flowcharts of FIGS. 14 to 16. And a control device for performing the control shown in FIG.

The paper folding section 3 is constructed as shown in FIG. First, the guide plates 21, 22, 32, and 33 form a path 28 to the discharged sheet storage section 4 and a path 34 to the processing section 5.

At the entrances of the guide plates 21 and 22, there are arranged an entrance sensor S1 and feed rollers 23a and 23b for receiving and conveying the paper pieces from the image forming apparatus 2. The feed roller 23b is driven by the pulse motor 24 via the timing belt 25, and the feed roller 23a is driven.

A switching guide 27 driven by a solenoid is provided at a branch portion between the path 28 and the path 34,
The transport route can be switched. The switching guide 27 is normally guided to the paper discharge side as shown by the solid line in FIG. 4, and when the processing mode is selected, it is rotated to the imaginary line position shown by the excitation of the solenoid. There is.

Paper discharge rollers 26a and 26b are provided in the path 28. The discharge roller 26b is the timing belt 3
The sheet discharge roller 26a is driven by the pulse motor 29 via 0 and 31.

In the opening 35 formed at the exit of the path 34, a paper folding sensor S2, a first paper folding roller 36 for forward and reverse rotation for folding the paper, and the first paper folding roller 36.
A second paper folding roller 37 that is in rolling contact with the first paper folding roller 36 and a third paper folding roller 38 that is also in rolling contact with the first paper folding roller 36 are provided. The first paper folding roller 36 and the second paper folding roller 36
The first paper folding roller 36 and the third paper folding roller 38 form a second rolling contact roller pair, and the first paper folding roller 36 and the third paper folding roller 38 form a second rolling contact roller pair.

The first paper folding roller 36 is driven by the pulse motor 29 via the timing belt 30, and the second and third paper folding rollers 37 and 38 are provided from the shaft of the first paper folding roller 36 via a gear. It is designed to be driven.

In order to prevent the folded pieces of paper from shifting,
The paper folding roller 36 is a rubber roller having a high friction coefficient, and the paper folding rollers 37 and 38 are both metal rollers.

The portion of the guide plate 33 facing the opening 35 is provided with a curved portion K on the side of the opening 35 to facilitate the loop formation of the paper piece.

As shown in FIG. 4, the feed roller 23
A cover 14 that can be opened / closed is provided above a.
When 6 is gripped and lifted upward, the cover 14 is hinge 1
5, it is possible to open with the virtual line shown.
The guide plate 21 and the feed roller 2 are attached to the cover 14.
3a and the paper discharge roller 26a are opened together in the upper X direction as shown in FIG.

Further, as shown in FIG. 11, the guide plate 32 and the paper folding roller 38 are rotatable in the Y direction, and the structure for opening the cover 14 and for handling the paper jam extremely easily are provided. Has become.

A processing section 5 is provided obliquely below the paper folding roller 36 and the like to perform processing such as punching and stapling the paper piece. The processing unit 5 includes a storage unit 50 that receives a plurality of paper pieces L supplied from the paper folding unit 3 on a transport surface 51.
As shown in FIG. 5, a moving means 62 for moving the bundle of paper stored in the storage portion 50, a punching device 70 for punching a bundle of paper moved by the moving means 62, and a stapler for stapling. 80 and.

As shown in FIGS. 4 and 5, the conveying surface 51 of the processing section 5 for receiving the paper piece L is provided with a considerable drop from the paper folding roller 36 or the like as the paper piece discharging means, and is set in the moving direction. It is curved in the intersecting direction, and it is difficult to bend in the moving direction with a piece of paper attached to the waist.

Further, the accommodating portion 50 is provided with a groove 60 formed along the moving direction of the paper piece, and a tip regulating portion 61 protruding toward the accommodating portion 6 side.

The conveying surface 51 is inclined downward to the left as shown in FIG. 4, and is inclined downward to the left as shown in FIG. The parts are aligned in two directions at right angles. By the way, when the paper piece falls, the left end of FIG. 2 becomes the tip and the side opposite the paper surface becomes the side edge, but after the paper piece is processed while moving in the direction of arrow A in FIG. 2 and 5, the front end portion when dropped is referred to as a side edge portion, and the side edge when dropped is referred to as a rear end portion. However, even after that, when describing a pattern at the time of dropping, it may be referred to as a side edge portion (falling tip portion), a rear end portion (falling side edge portion), and the like.

FIG. 5 shows a side edge restricting member 52 as a front end restricting means for restricting the drop front end portion, and a rear end restricting member 53 for restricting the drop side edge portion.

A nip member 54 for pressing the rear end of the paper piece is provided below the rear end regulating member 53, and both are supported by a moving support portion 55. The support portion 55 is screwed onto a shaft 56 (which is a feed screw), and is configured to move by a power transmission mechanism (not shown) driven by a driving pulse motor 57 and a belt 58. There is.

Further, a nip roller 59 is attached to the rear end regulating member 53 so as to be driven by means (not shown), and a piece of paper is sandwiched between the nip roller 59 and the nip member 54.

As shown in FIG. 5, the punching device 70 has a support 71.
The plunger 72 for drilling is inserted through the arm 73 pivotally supported by the pin 74 on the support body 71.
Are engaged with each other by an engagement pin 72a.

On the other hand, the crank pin 75a of the crank arm 75 is engaged with the guide groove 73a of the arm 73,
The crank arm 75 is connected to a pulse motor 78 via gears 76 and 77.

The stapler 80 has a frame 8 as shown in FIG.
It is attached to 7 so as to be rotatable about a shaft 88 by 45 degrees, for example. This is because not only parallel striking of staples but also square striking can be performed, and a parallelogram link mechanism is adopted as the rotating mechanism. This link mechanism includes an arm 89 attached to a shaft 88 and an arm 91 attached to a frame 87 via a shaft 90.
And a guide 94 attached to the arms 89 and 91 via shafts 92 and 93 so as to form a parallelogram.

The guide 94 has an inclined slope 95 so that the roller 84 attached to the moving portion 55 can easily enter.

In addition, a stopper 96 and a return spring 97 are provided in this rotating mechanism. Then, as shown in FIG. 13, the control device can select various processing modes such as paper folding and the like for processing a piece of paper.

That is, as the processing mode, there are a non-processing mode and a processing mode. In this non-processing mode, the paper piece sent from the image forming apparatus 2 is discharged straight as it is.

As a processing mode, Z-folding (tri-folding) and non-paper folding can be selected. Among these, non-paper folding is selected when performing processing such as punching without folding the paper. To do.

After selecting whether or not to fold the paper in the processing mode, it is possible to select punching (punching) and stapling, and in the case of punching, specify the number of punches.
In the case of stapling, it is possible to select either parallel striking or square striking, and to specify the number in the case of parallel striking.

Information on the size of the paper piece is obtained by the image forming apparatus 2.
It is designed to be given by.

<Operation> The Z-folding paper folding operation will be mainly described with reference to the paper folding operation explanatory diagrams of FIGS. 4 to 10 and the flowcharts of FIGS. 14 to 16.

(1) Straight paper discharge operation As shown in FIG. 14, one of the processing modes for the paper sheet L discharged from the image forming apparatus 2 is selected in advance by the control panel (ST1). It is checked whether the mode is the non-machining mode or the machining mode (ST2). If the mode is the non-machining mode, the switching guide 27 is switched to the non-machining side (solid line in FIG. 4) as shown in FIG. 15 (ST3).

When the sheet L is supplied from the image forming apparatus 2 and the entrance sensor S1 detects the leading edge of the sheet (ST4), the pulse motors 24 and 29 are normally rotated (ST5), and at the same time, the timer operates. When the predetermined time T1 during which the piece of paper is discharged from the discharge rollers 26a and 26b has elapsed (ST6), the pulse motors 24 and 29 are stopped (ST7). The paper pieces ejected from the paper ejection rollers 26a and 26b are accommodated in the paper ejection accommodating portion 28. Then, it is checked whether the sensor S1 has again detected the front end of the paper piece (ST8). If it is detected, the process returns to ST5, and if it is not detected during the elapse of the predetermined time T2 (ST9), the process ends.

(2) Non-Paper Folding Operation Returning to FIG. 14, when it is determined that the processing mode is selected in ST2, the switching guide 27 is switched to the processing side (phantom line in FIG. 4) (ST10). And non-folded paper or Z
It is judged whether it is a fold (ST11).
Move to 6. The sensor S1 detects the leading edge of the paper piece (ST
12), the motors 24 and 29 are driven (ST13),
The piece of paper is conveyed through the path 34 and is gripped by the paper folding rollers 36 and 37.

The sensor S2 detects the trailing edge of the sheet (ST1
4), the timer operates and the trailing edge of the piece of paper is the paper folding roller 3.
A predetermined time T3 of passing through 6 and 37 has passed (ST1
5) and the motors 24 and 29 are stopped (ST16). The ejected paper piece falls into the accommodating portion 50, the side edge regulating member 52 regulates the side edge (falling edge portion) of the paper piece leading edge La, and the rear portion (side edge when falling) is regulated by the rear edge regulating member 53. The side edges are aligned. Then, it is checked whether the sensor S1 has again detected the front end of the piece of paper (ST17). If it is detected, the process returns to ST13, and if it is not detected during a predetermined time T4 (ST18), the process ends.

(3) Paper Folding Operation Returning to FIG. 14, when it is determined to be Z-folding in ST11,
When the sensor S1 detects the leading edge of the paper piece (ST19), the motor 29 is driven (ST20), and the paper folding roller 36,
As 37 and 38 rotate, the timer operates. As shown in FIG. 8, the paper piece hits the rolling contact portion of the feed rollers 23a and 23b and is bent to correct the registration of the leading end.

When a predetermined time T5 has passed since the sensor S1 detected the tip (ST21), the pulse motor 24
Is driven (ST12), the paper discharge rollers 23a and 23b rotate to take in the paper sheet whose registration has been corrected.
4 is transported.

When the paper folding sensor S2 detects the leading edge of the paper piece (ST23), counting of drive pulses of the pulse motor 29 is started. The paper piece L passes through the rolling contact portion of the paper folding rollers 36 and 37 and has a predetermined amount of entry, for example, a predetermined number of pulses P1.
Is sent (ST24), the pulse motor 29 is temporarily stopped, and the first step is completed. Then, the motor 29 is immediately reversely rotated (ST25).

At this time, the feed rollers 23a and 23b continue to feed the paper, the paper piece L is curved as shown in FIG. 9, and the curved portion W1 is directed to the rolling contact portion of the paper folding rollers 36 and 38. After the lapse of the predetermined pulse P2 (ST26), the pulse motor 29 is stopped (second step) (ST27). As a result, the piece of paper is folded in two.

The number of pulses P2 is smaller than the number of pulses P1, and the non-folded portion L1 is attached to the leading edge La of the paper piece after Z-folding.
Are set in advance in the control device for each size so as to remain.

The pulse motor 29 immediately starts to rotate normally after stopping reverse rotation. Then, the paper piece L again forms the curved portion W2 as shown in FIG. 10, and the curved portion W2 enters the first rolling contact portion. The piece of paper is now Z-folded. Then, the trailing edge of the piece of paper is detected by the paper folding sensor S2 (ST28).
At that time, the pulse motor 24 is stopped (ST29),
At the same time, the timer starts.

Then, the predetermined time T6 elapses (ST3
0), the pulse motor 29 also stops (the third step is completed).
(ST31). In the meantime, the paper piece L is Z-folded, discharged from the first rolling contact portion and dropped to the processing portion 5, and the paper piece leading end portion La is
The side edge regulating member 52 of the housing portion 50 regulates the side edge (falling edge portion), and the rear portion (side edge when falling) is regulated by the rear edge regulating member 53 so that the side edges are aligned.

Then, it is checked whether or not the sensor S1 again detects the front end of the paper piece (ST32). If it is detected, the process returns to ST20. If it is not detected during a predetermined time T7 (ST33), the process ends.

Since the registration correction of the paper piece is performed before the paper folding operation is started, the fold line is not displaced or bent and folded.

(4) Stapling / Punching Operation When a predetermined number of sheets of paper are stored in the storage section 50 in this way, the nip roller 59 is lowered and the bundle of paper is gripped between the sheet and the nip member 54.

Then, the motor 57 is driven to drive the supporting portion 55.
Is moved upward in the direction of the treated paper piece accommodating portion 6. Depending on the rotation amount of the pulse motor 57 after the movement is started, the stapler 80 and the punching device 7 are set at a preset position.
If 0 is driven, as shown in FIG. 12, an appropriate number of holes P1,
Formation of P2, P3 and P4 and driving of staples H1 and J1 are performed.

Further, when the support portion 55 is moved, the roller 84 engages the inclined surface 95 of the guide 94 and pushes the guide 94 from the state shown in FIG. As a result, the link mechanism is deformed as shown in FIG. 7, and the support portion 55 continues to move, but the stapler 80 rotates 45 degrees. In this state, when the bundle of paper has moved to the predetermined position, the stapler 80
Drive the staple K to the corner of the piece of paper as shown in FIG.
You can hit 1. When the support portion 55 moves to the upper limit, the nip roller 59 rises to release the pressure contact of the piece of paper. Therefore, the bundle of paper pieces cannot be supported only by the tip end support member 61, and the paper piece bundle is dropped and stored in the processed paper piece storage portion 6.

By repeating the above-described operation, the bundle of paper sheets supplied from the paper folding unit 3 can be bound and punched. At that time, in the case of parallel stapling of the next sheet bundle, stapling is performed at the positions H2 and J2, and further stapling of the next sheet bundle is performed at positions H3 and J3. In this way, by sequentially changing the staple position for each sheet bundle to H1 to H3 and J1 to J3,
It is possible to minimize overlapping of staple positions.

Further, in the case of square-punching, the next sheet bundle is K2.
The binding is performed at the position of, and the positions of K1 and K2 are alternately repeated.

Therefore, even if a stack of paper sheets bound with staples is piled up, the position of the staples is displaced, and the bulkiness of that portion can be minimized. Further, since the staple positions are deviated, the staples are unlikely to be caught by each other and are easily aligned. Even when stacked, it is less likely to collapse than before. Furthermore,
When binding to a file or the like, the number of sheets that can be stored can be increased compared to the conventional case.

<Modification> Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and the following modifications can be made.

(1) In the above embodiment, the side edge regulating member 52
However, as shown in FIG. 5, the side edge restricting portion 52 should be movable in the direction B by a motor or solenoid, and the side edge restricting portion 52 should be moved before the paper piece is accommodated in the accommodating portion 50. Thus, the amount of the stapler 80 entering from the side edge of the paper piece L can be made different. Therefore, as shown in FIG. 17, the position H deeper than the staple positions H1, J1, and K1.
The positions of 4, H5, J4, J5 and K3 can also be bound.

(2) The binding position of the bundle of paper pieces need not be changed for each bundle of paper pieces. In this case, for example, the binding position may be changed every several bundles.

[0059]

According to the present invention, the accommodating portion for accommodating a plurality of paper pieces, the aligning means for aligning the side edges of the paper piece bundle accommodated in the accommodating portion, and the paper piece bundle aligned by the aligning means. A stapler for binding, a processing paper piece accommodating portion for accommodating a paper piece bundle bound by this stapler, and a changing means for appropriately changing the position for binding by the stapler for each paper piece bundle, so that the stapled paper piece bundle It is possible to obtain a paper piece processing device with little bulkiness even when stacked.

[Brief description of drawings]

FIG. 1 is an external perspective view of a state where a paper piece processing apparatus according to an embodiment of the present invention is attached to an image forming apparatus.

FIG. 2 is a vertical sectional view of the paper piece processing apparatus of FIG.

FIG. 3 is a view showing an arrangement state of a processing unit and a treated paper piece storage unit of the paper piece processing apparatus of FIG.

FIG. 4 is a vertical cross-sectional view of a paper folding unit and a processing unit of the paper piece processing apparatus of FIG.

FIG. 5 is a structural explanatory view of a processing portion.

FIG. 6 is an explanatory view of the operation of the stapler for staking.

FIG. 7 is an explanatory diagram of an operation of driving a stapler into a square shape.

FIG. 8 is a diagram illustrating a paper folding operation.

FIG. 9 is an explanatory diagram of a paper folding operation.

FIG. 10 is an explanatory diagram of a paper folding operation.

FIG. 11 is a structural explanatory view of a paper folding unit of the paper piece processing apparatus.

FIG. 12 is a state explanatory view of a paper piece on which perforations are formed and stapled.

FIG. 13 is a selection diagram of paper piece processing.

FIG. 14 is a flowchart of a paper folding operation.

FIG. 15 is a flowchart of a non-machining mode.

FIG. 16 is a flowchart of a non-paper folding operation in a processing mode.

FIG. 17 is a state explanatory view of a paper piece on which perforations are formed and stapled in a modified example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper piece processing device 5 Processing part 23a Feed roller (paper piece feeding means) 23b Feed roller (paper piece feeding means) 36 Paper folding roller (paper folding means / ejection means) 37 Paper folding roller (paper folding means / ejection means) 38 Paper folding roller (paper folding means) 52 Side edge regulation member (tip regulation means) L Paper piece L1 Z Unfolded portion of folded paper piece La Tip of paper piece

Claims (2)

[Claims] 1. An accommodating portion for accommodating a plurality of paper pieces, an aligning means for aligning side edges of a bundle of paper pieces accommodated in the accommodating portion, a stapler for binding the bundle of paper pieces aligned by the aligning means, A paper piece processing apparatus comprising: a processing paper piece accommodating portion for accommodating a paper piece bundle bound by a stapler; and changing means for appropriately changing a position for binding by the stapler for each paper piece bundle. 2. The paper piece processing apparatus according to claim 1, further comprising an alignment position changing means for appropriately changing the alignment position of the alignment means for each bundle of paper pieces.