JP2020117356A - Sheet processing device - Google Patents

Abstract

To provide a sheet processing device in which folding processing of giving a fold line at an angle to an edge of a sheet can be performed.SOLUTION: A sheet processing device for giving folding processing to a sheet P comprises: an input unit for accepting an angle and a position of a fold line; a sheet turning part (a turning roller 3) for turning the sheet correspondingly to the angle of the fold line; and a folding-processing executing unit (one or both of a first folding-processing executing unit consisting of a first turning roller, a second turning roller and a folding blade 6, and a second folding-processing executing unit consisting of the second turning roller and a third turning roller) which folds the sheet turned by the turning roller 3 at the position of the folding line. Further, the sheet processing device comprises a plurality of detection elements (a line sensor 4) arranged at a different position in the conveyance direction as a turning-angle detection part 4b for detecting a turning angle of a sheet.SELECTED DRAWING: Figure 2

Description

The present invention relates to a sheet processing device that executes a folding process for folding a sheet.

2. Description of the Related Art Conventionally, a sheet processing apparatus that performs a folding process on a sheet has been used (for example, see Patent Document 1). The sheet processing apparatus that performs the folding process includes, for example, a pair of folding rollers and a folding blade that presses the sheet between the pair of folding rollers to perform center folding of the sheet at the fold position.

JP, 2010-157131, A

However, in the conventional technique, the fold line of the paper is limited to the one parallel to the edge of the paper perpendicular to the transport direction, and there is a problem that it cannot cope with various folding methods.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a sheet processing apparatus that can perform folding processing at a fold line that is angled with respect to the edge of the sheet.

A sheet processing apparatus of the present invention is a sheet processing apparatus that executes a folding process for folding a sheet, including an input unit that receives an angle and a position of a fold, and a sheet turning unit that turns the sheet according to the angle of the fold. A folding processing execution unit that folds the sheet that has been turned by the sheet turning unit at the position of the fold line.

Advantageous Effects of Invention According to the present invention, it is possible to perform a folding process by using an existing horizontal crease-provided booklet mechanism with a crease angled with respect to the edge of a sheet, and to cope with various folding methods. Play.

It is a schematic diagram showing a schematic structure of an embodiment of a sheet processing apparatus according to the present invention. It is a figure which shows arrangement|positioning of the turning roller shown in FIG. 1, a line sensor, and a folding blade. It is explanatory drawing explaining the turning operation in the turning roller shown in FIG. It is a block diagram showing a configuration of an embodiment of a sheet processing apparatus according to the present invention. 6 is a flowchart illustrating a folding processing operation according to the exemplary embodiment of the sheet processing apparatus according to the present invention. FIG. 6 is an explanatory diagram illustrating a folding processing operation according to the embodiment of the sheet processing apparatus according to the present invention. FIG. 6 is an explanatory diagram illustrating a folding processing operation according to the embodiment of the sheet processing apparatus according to the present invention. It is a figure which shows the example of the folding process by embodiment of the sheet processing apparatus which concerns on this invention.

Next, embodiments of the present invention will be specifically described with reference to the drawings.

Referring to FIG. 1, the sheet processing apparatus 1 according to the present embodiment includes a conveyance path 2, a turning roller 3, a line sensor 4, a first folding roller 5a, a second folding roller 5b, and a third folding roller. 5 c, a folding blade 6, an abutting conveyance path 7, and a stop plate 8.

The transport path 2 guides the received paper P to the turning roller 3 and also functions as a guide to the folding blade 6. As shown in FIG. 2, the transport path 2 has an opening 21 for the folding blade 6 and an opening 22 for the line sensor 4.

The turning roller 3 functions as a paper turning unit that turns the paper P obliquely on the paper surface. As shown in FIG. 2, the turning roller 3 includes a first turning roller 3a disposed on the left and right with respect to the conveyance direction of the sheet P guided and conveyed by the conveyance path 2 (hereinafter, simply referred to as a conveyance direction). The second turning roller 3b is provided. The first turning roller 3a and the second turning roller 3b are configured to be independently rotatable.

As shown in FIG. 3A, in the state where the paper P is in contact with the first turning roller 3a and the second turning roller 3b, the first turning roller 3a is stopped and only the second turning roller 3b is rotated. As a result, as shown in FIGS. 3B and 3C, the end of the first turning roller 3a on the second turning roller 3b side becomes the fulcrum X, and the paper P is turned obliquely on the paper surface. It should be noted that FIG. 3B shows a state in which the sheet P is rotated by 15 degrees, and FIG. 3C shows a state in which the sheet P is rotated by 30 degrees.

Referring to FIG. 2, the line sensor 4 includes a plurality of detection elements that detect a sheet, and the plurality of detection elements are arranged at different positions in the transport direction. The line sensor 4 includes a detection element that functions as the contact detection unit 4a, and as illustrated in FIG. 3A, the line sensor 4 contacts the turning roller 3 (the first turning roller 3a and the second turning roller 3b) of the paper P. Detect contact. Further, the line sensor 4 includes a plurality of detection elements that function as the turning angle detection unit 4b, and as shown in FIGS. 3B and 3C, the combination of detection and non-detection (the number of detections) changes The turning angle of the paper P is detected.

The first folding roller 5a, the second folding roller 5b, and the folding blade 6 function as a first folding processing execution unit that folds the sheet P at the first fold F1. Each of the first folding roller 5a and the second folding roller 5b is rotatably provided and has a nip portion where the outer peripheral surfaces of the first folding roller 5a and the second folding roller 5b contact each other. The first folding roller 5a and the second folding roller 5b perform the first folding process of folding the sheet P at the first fold F1 by nipping and conveying the sheet P at the nip portion.

The folding blade 6 is a plate-shaped member that is arranged perpendicular to the transport direction. The folding blade 6 protrudes toward the nip portion between the first folding roller 5a and the second folding roller 5b through the opening 21 of the conveyance path 2 and the standby position below the sheet P to be conveyed. It moves back and forth between the protruding position. When the tip of the folding blade 6 moves from the standby position to the protruding position, the paper P is folded, and the paper P is pinched in the nip portion between the first folding roller 5a and the second folding roller 5b.

The abutting conveyance path 7 functions as a guide for guiding the first fold line F1 of the paper P sent out from the nip portion between the first folding roller 5a and the second folding roller 5b to the stop plate 8.

The second folding roller 5b and the third folding roller 5c function as a second folding processing execution unit that folds the sheet P at the second fold F2. Each of the second folding roller 5b and the third folding roller 5c is rotatably provided, and has a nip portion where the outer peripheral surfaces of the second folding roller 5b and the third folding roller 5c contact each other. The second folding roller 5b and the third folding roller 5c perform the second folding process of folding the paper P at the second fold F2 by nipping and conveying the paper P at the nip portion.

The paper P sent out from the nip portion between the first folding roller 5a and the second folding roller 5b is bent at the surplus portion which cannot be accommodated in the abutting conveyance path 7 after the first fold F1 contacts the stop plate 8. As a result, it is sandwiched between the second folding roller 5b and the third folding roller 5c.

The stopper plate 8 is configured to be movable along the abutting conveyance path 7, and the length of the abutting conveyance path 7 is changed depending on the position of the stopper plate 8. Therefore, the stopper plate 8 functions as an interval setting unit that sets the interval between the first fold F1 and the second fold F2.

Further, referring to FIG. 4, the sheet processing apparatus 1 includes an input unit 11, a turning roller driving unit 12, a blade driving unit 13, a folding roller driving unit 14, a stop plate driving unit 15, and a control unit 16. Equipped with.

The input unit 11 receives inputs from a user or a higher-level device of the angle and position of the first fold F1 to be applied to the sheet P and the position of the second fold F2 parallel to the first fold F1. It should be noted that the valid range of the angle and the position to be received may be set so that the positions of the first fold F1 and the second fold F2 are not too short or too far. Further, it is preferable to set the valid range of the angle and the position to be accepted for each size of the paper P.

The turning roller drive unit 12 is a motor that rotationally drives the turning roller 3, and rotates the first turning roller 3a and the second turning roller 3b independently.

The blade drive unit 13 is an actuator that moves the folding blade 6 between a standby position and a protruding position.

The folding roller driving unit 14 is a motor that rotationally drives the first folding roller 5a, the second folding roller 5b, and the third folding roller 5c, and drives the first folding roller 5a, the second folding roller 5b, and the third folding roller 5c. Rotate at the same peripheral speed.

The stop plate drive unit 15 is an actuator that causes the stop plate 8 to abut and move along the conveyance path 7.

The control unit 16 controls the turning roller driving unit 12, the blade driving unit 13, the folding roller driving unit 14, and the stop plate driving unit 15 based on the input from the input unit 11, a CPU (Central Processing Unit), a ROM ( An information processing unit such as a microcomputer including a read only memory) and a RAM (Random Access Memory). The ROM stores a control program for controlling the operation of the sheet processing apparatus 1. The control unit 16 reads the control program stored in the ROM and expands the control program in the RAM, thereby functioning as the folding information setting unit 17, the first folding processing unit 18, and the second folding processing unit 19 to operate the apparatus. Control the behavior of.

Next, the folding processing operation of the sheet processing apparatus 1 will be described in detail with reference to FIGS.

First, as shown in FIG. 6A, the input unit 11 receives inputs of the angles and positions of the first fold F1 and the second fold F2 to be applied to the paper P from the user or the higher-level device (step S101). The angles and positions of the first fold line F1 and the second fold line F2 may be selected from preset values.

Next, the control unit 16 functions as the folding information setting unit 17, and calculates the post-turning transport distance L (step S102). As shown in FIG. 6B, the post-turning transport distance L is a distance for transporting the sheet P that is diagonally rolled by the roll roller 3 to a position where the first fold F1 faces the folding blade 6.

Next, the folding information setting unit 17 calculates the folding interval W between the first folding line F1 and the second folding line F2 (step S103).

Next, the control unit 16 functions as the second folding processing unit 19, and controls the stopper plate driving unit 15 based on the crease spacing W calculated in step S103, so that the stopper plate 8 is abutted on the conveyance path 7. It is moved along and is positioned so that the second fold F2 is sandwiched by the nip portion between the second folding roller 5b and the third folding roller 5c (step S104).

Next, the control unit 16 functions as the first folding processing unit 18, monitors the output of the detection element that functions as the contact detection unit 4a of the line sensor 4, and receives the paper P received from the upstream side device such as the image forming apparatus. The contact with the turning roller 3 is awaited (step S105).

When the sheet P contacts the turning roller 3 in step S105, the first folding processing unit 18 controls the turning roller driving unit 12 to stop the first turning roller 3a and rotate only the second turning roller 3b. The turning process is started (step S106).

Next, the first folding processing unit 18 monitors the outputs of the plurality of detection elements that function as the turning angle detection unit 4b of the line sensor 4, and determines the angles of the first fold F1 and the second fold F2 received in step S101. Waits for (step S107).

When the angles of the first fold F1 and the second fold F2 are reached in step S107, the first folding processing unit 18 controls the tumbling roller driving unit 12 so that the first tumbling roller 3a and the second tumbling roller 3b are the same. The sheet P rotated and rotated at the peripheral speed is conveyed by the post-turning conveyance distance L calculated in step S102 (step S108). As a result, the first fold line F1 faces the folding blade 6 as shown in FIG.

Next, the first folding processing unit 18 controls the folding roller driving unit 14 to start the rotation of the first folding roller 5a, the second folding roller 5b, and the third folding roller 5c (step S109), and the blade. The drive unit 13 is controlled to move the folding blade 6 at the standby position to the protruding position, and then returns to the standby position (step S110).

As a result, as shown in FIG. 7B, the sheet P is folded at the first fold F1 by the folding blade 6, and the sheet P is held in the nip portion between the first folding roller 5a and the second folding roller 5b. Then, the sheet P is nipped at the nip portion between the first folding roller 5a and the second folding roller 5b and conveyed, whereby the first folding process of folding at the first fold F1 is executed.

The first fold F1 of the sheet P sent out from the nip portion between the first folding roller 5a and the second folding roller 5b contacts the stop plate 8. Then, as shown in FIG. 7C, the surplus portion that cannot be accommodated in the abutting conveyance path 7 is bent at the second fold F2 and is sandwiched in the nip portion between the second folding roller 5b and the third folding roller 5c. .. The sheet P is nipped at the nip portion between the second folding roller 5b and the third folding roller 5c and conveyed, so that the second folding process of folding at the second fold F2 is executed, and the first fold F1 and the second fold F2. The sheet P folded in three by the fold F2 is discharged to a discharge unit (not shown).

Next, the first folding processing unit 18 waits for the ejection of the sheet P due to the ejection sensor (not shown) or the passage of time (step S111). Then, when the discharge of the paper P is completed in step S111, the first folding processing unit 18 controls the folding roller driving unit 14 to rotate the first folding roller 5a, the second folding roller 5b, and the third folding roller 5c. Is stopped (step S112), and the folding operation is completed.

FIG. 8A shows a sheet P for making an envelope, which is folded at the first fold F1, the second fold F2, the third fold F3, and the fourth fold F4, and the overlapped portion is simply glued. As shown in (b), an envelope can be easily created. Such envelope-making paper P is used, for example, as an envelope for replying to hometown tax payments, and it is becoming cheaper and more mainstream than preparing an actual envelope. In the sheet processing apparatus 1 according to the present embodiment, the sheet P can be folded in three at diagonal folds. Therefore, as shown in FIG. 8C, it can be provided to the user in the state of being folded at the first fold F1 and the second fold F2, and the user can intuitively support the envelope creation. ..

As described above, the present embodiment is the sheet processing apparatus 1 that executes the folding process for folding the sheet P, and includes the input unit 11 that receives the angle and position of the first fold F1 and the angle of the first fold F1. According to the sheet folding unit (rolling roller 3) that rolls the sheet P, and a folding processing execution unit (first folding roller 5a, second folding roller 5a) that folds the sheet P rolled by the rolling roller 3 at the position of the first fold F1. Either or both of a first folding process execution unit including a roller 5b and a folding blade 6 and a second folding process execution unit including a second folding roller 5b and a third folding roller 5c) are provided.
With this configuration, it is possible to perform the folding process on either or both of the first fold F1 and the second fold F2 that are angled with respect to the edge of the paper P, using the existing booklet mechanism that allows horizontal folds. It can be used for various folding methods. The existing horizontal foldable booklet mechanism can use the post-processing device optionally connected to the image forming apparatus. Also, the angle of the fold line can be adjusted by adjusting the inclination angle of the paper P to be carried in.

Further, according to the present embodiment, the turning roller 3 includes the first turning roller 3a and the second turning roller 3b arranged on the left and right with respect to the conveyance direction of the paper P, and stops the first turning roller 3a. The paper P is rotated by rotating only the second rotation roller 3b.
With this configuration, the angle of the paper P can be controlled with a simple configuration.

Further, according to the present embodiment, the turning roller 3 turns the sheet P, and then rotates the first turning roller 3a and the second turning roller 3b at the same peripheral speed to turn the first fold F1 into the folding blade 6. Transport to.
With this configuration, the turning roller 3 can be used as a transport roller.

Furthermore, according to the present embodiment, as the turning angle detection unit 4b that detects the turning angle of the paper P, a plurality of detection elements (line sensors 4) arranged at different positions in the transport direction are provided.
With this configuration, the turning angle can be set accurately.

Furthermore, according to the present embodiment, the input unit 11 receives inputs of the angle and position of the first fold F1 and the position of the second fold F2 parallel to the first fold F1, and is turned by the turning roller 3. The first folding processing execution unit (first folding roller 5a, second folding roller 5b and folding blade 6) that folds the sheet P at the first fold F1, and the sheet P that is turned by the turning roller 3 at the second fold F2. The second folding processing execution unit (the second folding roller 5b and the third folding roller 5c) for folding is provided.
With this configuration, it is possible to provide the sheet P that is obliquely folded in three. For example, since it is possible to provide the user with the envelope-forming paper P folded in three, the user can intuitively support the envelope creation.

It should be noted that the present invention is not limited to each of the above-described embodiments, and it is apparent that each embodiment can be appropriately modified within the scope of the technical idea of the present invention.

1 Paper Processing Device 2 Conveying Path 3 Rolling Roller 3a First Rolling Roller 3b Second Rolling Roller 4 Line Sensor 4a Contact Detection Unit 4b Rolling Angle Detection Unit 5a First Folding Roller 5b Second Folding Roller 5c Third Folding Roller 6 Folding Blade 7 Hitting and conveying path 8 Stop plate 11 Input unit 12 Rolling roller drive unit 13 Blade drive unit 14 Folding roller drive unit 15 Stop plate drive unit 16 Control unit 17 Folding information setting unit 18 First folding processing unit 19 Second folding process Portions 21 and 22 Opening F1 First fold F2 Second fold F3 Third fold F4 Fourth fold L Transport distance after roll P Paper W Fold spacing X Support point

Claims (5)

A paper processing device for executing folding processing for folding paper,
An input unit that receives the angle and position of the fold,
A sheet turning unit that turns the sheet according to the angle of the fold,
A sheet processing apparatus, comprising: a folding process execution unit that folds the sheet rolled by the sheet roll unit at the position of the fold line. The paper tumbling unit includes a first tumbling roller and a second tumbling roller that are arranged on the left and right with respect to the transport direction of the paper, and stops the first tumbling roller and rotates only the second tumbling roller. 2. The sheet processing apparatus according to claim 1, wherein the sheet is turned over. The sheet turning unit rotates the sheet and then rotates the first turning roller and the second turning roller at the same peripheral speed to convey the fold to the folding processing execution unit. The sheet processing apparatus according to item 2. The sheet processing apparatus according to claim 2, further comprising a plurality of detection elements arranged at different positions in the transport direction as a turning angle detection unit that detects a turning angle of the sheet. The input unit receives inputs of an angle and a position of a first fold and a position of a second fold parallel to the first fold,
The folding processing execution unit folds the sheet rolled by the sheet rolling unit at the first fold, and the folding processing execution unit folds the sheet rolled by the sheet rolling unit at the second fold. The sheet processing apparatus according to claim 1, further comprising: a two-fold processing execution unit.

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