JP2018016450A - Recording material processing device and image formation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the loading abnormality of recording materials that may occur in a case of biasing the recording materials by a rotary member in comparison to a case where the deviation in the thickness direction of the recording material is not suppressed.SOLUTION: A recording material processing device includes: a sheet loading part 60 which is loaded with sheets; a second paddle 692 which biases the sheets in the direction where the sheets extend by being in contact with the sheets on the sheet loading part 60; and a movable roll 62 which suppresses deviation in the thickness direction of the sheets that occurs due to contact of the second paddle 692 with the end of the sheets.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a recording material processing apparatus and an image forming system.

  Patent Document 1 discloses a paper aligning device that includes a first aligning unit that aligns end surfaces parallel to the paper transport direction and a second aligning unit that aligns end surfaces orthogonal to the paper transport direction.

JP 2006-225119 A

When the rotating member is brought into contact with the recording material of the recording material stacking portion and the recording material is urged in the direction in which the recording material extends, the recording material moves in the thickness direction of the recording material when the rotating member contacts the end of the recording material. May be displaced, causing recording material loading disturbance.
An object of the present invention is to suppress the recording material stacking disturbance that may occur when the recording material is urged by the rotating member, as compared with the case where the displacement of the recording material in the thickness direction is not suppressed.

According to the first aspect of the present invention, there is provided a recording material stacking unit on which a recording material is stacked, and a rotating member that contacts the recording material of the recording material stacking unit and biases the recording material in a direction in which the recording material extends. And a suppressing member that suppresses displacement in the thickness direction of the recording material that occurs when the rotating member contacts the end of the recording material.
According to a second aspect of the present invention, before the new recording material is supplied to the recording material stacking unit, the restraining member is retracted from the recording material stacking unit, and the new recording material The recording material processing apparatus according to claim 1, wherein the recording material processing unit advances toward the recording material stacking unit after being supplied to the recording material stacking unit.
According to a third aspect of the present invention, the recording material stacking portion is provided with a recording material support surface that supports the recording material to be stacked, and the restraining member is disposed at a position facing the recording material support surface. A recording material processing apparatus according to claim 1.
According to a fourth aspect of the present invention, each time the recording material is supplied to the recording material stacking unit, the rotating member and the restraining member advance into the recording material stacking unit and retreat from the recording material stacking unit. The recording material according to claim 1, wherein after the retraction of the rotary member from the recording material stacking portion is started, the advancement of the restraining member to the recording material stacking portion is started. It is a processing device.
A fifth aspect of the present invention is the recording material processing apparatus according to any one of the first to fourth aspects, wherein the restraining member is pressed against the recording material of the recording material stacking portion.
According to a sixth aspect of the present invention, the restraining member advances toward the recording material stacking unit every time a new recording material is supplied to the recording material stacking unit, and the new recording material is determined in advance. The recording material processing apparatus according to claim 1, wherein when the new recording material is supplied, the advance is not performed when the new recording material is supplied.
According to a seventh aspect of the present invention, the restraining member is a rotating member, and after a predetermined number of recording materials are stacked on the recording material stacking unit and a recording material bundle is generated, 7. The recording material processing apparatus according to claim 1, wherein the recording material bundle is moved by contact and rotation.
According to an eighth aspect of the present invention, there is provided an image forming unit that forms an image on a recording material, a recording material stacking unit on which a recording material on which an image is formed by the image forming unit is stacked, and the recording material stacking unit A rotating member that contacts the recording material and urges the recording material in a direction in which the recording material extends, and a displacement in the thickness direction of the recording material that occurs when the rotating member contacts the end of the recording material. An image forming system including a restraining member for restraining.

According to the first aspect of the present invention, it is possible to suppress the recording material stacking disturbance that may occur when the recording material is biased by the rotating member, as compared with the case where the displacement of the recording material in the thickness direction is not suppressed.
According to the second aspect of the present invention, it is possible to suppress the movement of the recording material from being restricted by the suppressing member as compared with the case where the suppressing member is always advanced to the recording material stacking portion side.
According to the invention of claim 3, the displacement in the thickness direction of the recording material can be suppressed from both sides of the recording material by both the recording material support surface and the suppressing member.
According to the fourth aspect of the present invention, it is possible to more reliably urge the recording material by the rotating member than when the advancement of the holding member is started before the retracting of the rotating member is started.
According to the fifth aspect of the present invention, the swelling of the recording material in the recording material stacking portion can be reduced as compared with the case where the suppressing member is not pressed against the recording material in the recording material stacking portion.
According to the sixth aspect of the present invention, compared with the case where the suppressing member advances to the recording material stacking portion regardless of the size of the recording material, it is possible to reduce the movement of the recording material due to the recording material coming into contact with the suppressing member. .
According to the seventh aspect of the present invention, the number of parts can be reduced as compared with the case where a member for suppressing the displacement of the recording material and a member for moving the recording material bundle are provided.
According to the eighth aspect of the present invention, it is possible to suppress the recording material stacking disturbance that may occur when the recording material is biased by the rotating member, as compared with the case where the displacement of the recording material in the thickness direction is not suppressed.

1 is a diagram illustrating a configuration of an image forming system. It is the figure which showed the structure of the recording material processing apparatus. It is the figure which showed detailed structures, such as a movable roll and a 2nd paddle. It is a figure at the time of seeing a 2nd paddle, an advancing body, a control member, etc. from the arrow IV direction of FIG. It is the figure which showed the control member before attaching to an advancing body. (A), (B) is a figure explaining the movement of a control member. It is the figure which showed the other structural example of the recording material processing apparatus. (A), (B), (C) is a figure explaining the motion of a movable roll. It is the figure which showed the other structural example of the recording material processing apparatus.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram illustrating a configuration of an image forming system 500.
The image forming system 500 includes an image forming apparatus 1 that forms a color image on a sheet P that is an example of a recording material, and post-processing such as binding for the sheet P on which image formation has been performed by the image forming apparatus 1. And a recording material processing apparatus 2 for performing the above.

The image forming apparatus 1 as an example of an image forming unit is provided with four image forming units 100Y, 100M, 100C, and 100K (also collectively referred to as “image forming unit 100”) that perform image formation based on each color image data. ing.
Further, the image forming apparatus 1 is provided with a laser exposure apparatus 101 that exposes the photosensitive drum 107 provided in each image forming unit 100. Further, the image forming apparatus 1 is provided with an intermediate transfer belt 102 on which the toner images of the respective colors formed by the image forming units 100 are transferred in a multiple manner.

  The image forming apparatus 1 also includes a primary transfer roll 103 that sequentially transfers (primary transfer) each color toner image formed by each image forming unit 100 to the intermediate transfer belt 102, and each color transferred onto the intermediate transfer belt 102. A secondary transfer roll 104 that collectively transfers (secondary transfer) the toner image onto the paper P, and a fixing device 105 that fixes the secondary-transferred color toner images onto the paper P are provided. Further, the image forming apparatus 1 includes a main body control unit 106 that is configured by a program-controlled CPU (Central Processing Unit) and controls the operation of each unit of the image forming apparatus 1.

In each image forming unit 100 of the image forming apparatus 1, the charging process to the photosensitive drum 107, the electrostatic latent image forming process on the photosensitive drum 107 by the scanning exposure from the laser exposure apparatus 101, and the formed electrostatic latent image The toner image of each color is formed through the development process of each color toner.
Each color toner image formed on each image forming unit 100 is sequentially electrostatically transferred onto the intermediate transfer belt 102 by the primary transfer roll 103. Each color toner image is conveyed to the installation position of the secondary transfer roll 104 as the intermediate transfer belt 102 moves.

Further, in the image forming apparatus 1, sheets P of different sizes and different paper types are accommodated in the sheet accommodating portions 110A to 110D, respectively.
At the time of forming an image on the paper P, for example, the paper P is taken out from the paper storage unit 110A by the pickup roll 111 and conveyed one by one to the position of the registration roll 113 by the conveyance roll 112.

Then, the paper P is supplied from the registration roll 113 in accordance with the timing when each color toner image on the intermediate transfer belt 102 is conveyed to the arrangement position of the secondary transfer roll 104.
As a result, the toner images of each color are collectively electrostatically transferred (secondary transfer) onto the paper P by the action of the transfer electric field formed by the secondary transfer roll 104.

Thereafter, the paper P onto which the color toner images are secondarily transferred is peeled off from the intermediate transfer belt 102 and conveyed to the fixing device 105. In the fixing device 105, each color toner image is fixed on the paper P by a fixing process using heat and pressure.
Thereafter, the paper P is discharged from the paper discharge unit T of the image forming apparatus 1 by the transport roll 114 and is supplied to the recording material processing apparatus 2. The recording material processing apparatus 2 is disposed on the downstream side of the paper discharge unit T of the image forming apparatus 1 and performs post-processing such as punching and binding on the paper P on which the image is formed.

FIG. 2 is a diagram showing the configuration of the recording material processing apparatus 2.
The recording material processing apparatus 2 includes a transport unit 21 connected to the paper discharge unit T of the image forming apparatus 1 and a finisher unit 22 that performs a predetermined process on the paper P conveyed by the transport unit 21. Is provided.

  Further, the recording material processing apparatus 2 includes a sheet processing control unit 23 that is configured by a program-controlled CPU (Central Processing Unit) and controls each unit of the recording material processing apparatus 2. The paper processing control unit 23 is connected to the main body control unit 106 (see FIG. 1) via a signal line (not shown), and transmits and receives control signals and the like.

The transport unit 21 of the recording material processing apparatus 2 is provided with a punch function unit 30 for punching (punching) such as 2 holes or 4 holes.
Further, the transport unit 21 is provided with a plurality of transport rolls 211 for transporting the paper P after the image is formed by the image forming apparatus 1 toward the finisher unit 22.

On the other hand, the finisher unit 22 is provided with a finisher unit main body 221. Further, the finisher unit 22 is provided with a paper stacking unit 60 as an example of a recording material stacking unit. In the sheet stacking unit 60, a predetermined number of sheets P are stacked, and a sheet bundle is generated.
Furthermore, the finisher unit 22 is generated by a transport roll 222 that transports the paper P toward the paper stacking unit 60, a paper detection sensor S that detects the paper P transported to the paper stacking unit 60, and the paper stacking unit 60. A binding unit 51 that performs binding (edge binding) on the end of the sheet bundle is provided.

Further, the finisher unit 22 is provided with a transport roll 61 that is rotatably provided and used for transporting a bundle of sheets generated by the sheet stacking unit 60. Further, a movable roll 62 is provided that is swingable about the rotation shaft 62 </ b> A and moves to a position retracted from the transport roll 61 and a position in contact with the transport roll 61.
Here, each of the transport roll 61 and the movable roll 62 is a rotating member, and when a sheet bundle is generated in the sheet stacking unit 60, it rotates in contact with the sheet bundle. As a result, the sheet bundle is sent to the stacker 80. The stacker 80 moves up and down according to the amount of the sheet bundle to be held.

The paper stacking unit 60 is provided with a support member 67 that supports the paper P from below.
The support member 67 is formed in a plate shape and is disposed in a state inclined with respect to the horizontal direction and the vertical direction. The support member 67 has a paper support surface 67A as an example of a recording material support surface that supports the paper P from below.

Further, in the present embodiment, a first paddle 691 and a second paddle 692 are provided for urging the paper P supplied on the support member 67 toward the end guide 64 positioned at the end of the support member 67. ing. In other words, a first paddle 691 and a second paddle 692 that are in contact with the paper P and urge the paper P in the extending direction of the paper P are provided.
The first paddle 691 is located on the side close to the end guide 64, and the second paddle 692 is located on the side away from the end guide 64.

In this embodiment, an alignment member 65 is provided that is movable in the width direction of the sheet bundle (is provided so as to be movable in a direction orthogonal to the paper surface of FIG. 2) and aligns the position in the width direction of the sheet bundle. ing.
Two aligning members 65 are provided, and one aligning member 65 is disposed on one side in the width direction of the sheet bundle, and the other aligning member 65 is disposed on the other side in the width direction of the sheet bundle.

  When processing by the recording material processing apparatus 2 is performed, first, the paper P from the image forming apparatus 1 is supplied to the transport unit 21 of the recording material processing apparatus 2. In the transport unit 21, after punching by the punch function unit 30, the paper P is sent to the finisher unit 22 by the transport roll 211.

When there is no instruction for punching, the paper P is sent to the finisher unit 22 as it is without being punched by the punch function unit 30.
Then, the paper P sent to the finisher unit 22 is supplied to the paper stacking unit 60 by the transport roll 222. In this embodiment, the leading edge and the trailing edge of the paper P are detected by the paper detection sensor S at this time.

  The paper P supplied to the paper stacking unit 60 is transported to above the paper stacking unit 60 and then falls to the paper stacking unit 60. The paper P is supported from below by the paper support surface 67A of the support member 67. Further, the sheet P slides on the support member 67 by the first paddle 691 and the second paddle 692 which are inclined and rotated on the sheet support surface 67A. Then, the paper P abuts against the end guide 64 positioned at the end of the support member 67.

Furthermore, in the present embodiment, when the paper P is supplied to the paper stacking unit 60, the end (side) in the width direction of the paper P is pressed by the aligning member 65, and the width direction of the paper P (paper bundle) The positions at are aligned.
Thereafter, these operations are performed each time the paper P is conveyed from the upstream side, and a paper bundle in which the end portions of the paper P are aligned is generated in the paper stacking unit 60.

Each of the first paddle 691 and the second paddle 692 is rotationally driven in the clockwise direction as indicated by an arrow in the figure.
Further, each of the first paddle 691 and the second paddle 692 has a plurality of projecting portions 93 projecting outward in the radial direction. More specifically, each of the first paddle 691 and the second paddle 692 includes a cylindrical base 92 and a plurality of protrusions 93 that protrude outward from the outer peripheral surface of the base 92.

Each of the first paddle 691 and the second paddle 692 is formed of a resin material, and each of the protrusions 93 is formed of a rectangular elastic piece.
Further, in the present embodiment, each of the protrusions 93 is arranged in an inclined state with respect to both the tangential direction and the radial direction of the base 92. In addition, each of the protrusions 93 protrudes toward the upstream side in the rotation direction of the first paddle 691 and the second paddle 692.

Here, each of the first paddle 691 and the second paddle 692 rotates in the clockwise direction and urges the paper P supplied from the paper stacking unit 60 toward the end guide 64.
The second paddle 692 as an example of a rotating member advances toward the paper stacking unit 60 every time a new paper P is supplied to the paper stacking unit 60.

Specifically, the second paddle 692 advances toward the paper stacking unit 60 when a new paper P is supplied to the paper stacking unit 60. Then, the protruding portion 93 of the second paddle 692 comes into contact with the new paper P, and the new paper P is urged toward the end guide 64. Thereafter, the second paddle 692 moves upward and retracts from the paper stacking unit 60.
In the present embodiment, the movable roll 62 advances and retreats with respect to the paper stacking unit 60 every time a new paper P is supplied to the paper stacking unit 60 (details will be described later).

When a predetermined number of sheets P are stacked on the sheet stacking unit 60 (on the sheet support surface 67A) (when a sheet bundle is generated), the binding unit 51 binds the end of the sheet bundle. Processing is executed.
Here, the binding unit 51 performs a binding process using a stapler. Note that the binding process for the sheet bundle may be performed without using staples, and for example, the sheet bundle may be pressed by a pair of pressing teeth.

When the binding process for the sheet bundle is completed (when the generation of the sheet bundle is completed), the movable roll 62 advances toward the conveyance roll 61, and the sheet bundle positioned between the movable roll 62 and the conveyance roll 61 is The movable roll 62 and the transport roll 61 are pressed. In other words, the sheet bundle is sandwiched between the movable roll 62 and the transport roll 61.
Thereafter, the transport roll 61 and the movable roll 62 rotate, and the sheet bundle subjected to the binding process moves to the stacker 80.

FIG. 3 is a diagram showing a detailed structure of the movable roll 62, the second paddle 692, and the like.
As shown in FIG. 3, in this embodiment, an advancing body 300 as an example of an installation member is installed on the left side of the second paddle 692.
The advancing body 300 is installed with a gap G1 between the advanced body 300 and the second paddle 692. In this embodiment, the movable roll 62 is attached to the advancement body 300. More specifically, the movable roll 62 is attached to the end of the advancing body 300 on the side close to the second paddle 692.

Further, the advancing body 300 is supported by a rotating shaft 62A that penetrates the left end portion of the advancing body 300 in the figure, and rotates around the rotating shaft 62A.
In the present embodiment, the movable roll 62 advances toward the paper stacking unit 60 by the advancement body 300 rotating in the clockwise direction. Further, when the advancement body 300 rotates counterclockwise, the movable roll 62 is retracted from the paper stacking unit 60.

Furthermore, in this embodiment, an advance / retreat mechanism 310 is provided to advance and retract the advancement body 300 with respect to the paper stacking unit 60.
The advancing / retreating mechanism 310 includes a rotating shaft 310A that is rotated by a stepping motor (not shown), a rotating member 310B that rotates about the rotating shaft 310A, and a connecting member 310C that connects the distal end portion of the rotating member 310B and the advancing body 300. With.
In the present embodiment, the rotation member 310B rotates about the rotation shaft 310A, so that the connecting member 310C advances and retreats with respect to the paper stacking unit 60, whereby the advancement body 300 advances and retreats with respect to the paper stacking unit 60. .

Further, a paddle advance / retreat mechanism 400 for advancing / retreating the second paddle 692 with respect to the paper stacking unit 60 is provided.
The paddle advance / retreat mechanism 400 is provided with a circular drive member 410 that is rotated by a drive source (not shown). Further, the paddle advance / retreat mechanism 400 is provided with a connection member 420 that connects the outer peripheral portion of the drive member 410 and the second paddle 692. Further, a guide member (not shown) for guiding the second paddle 692 is provided so that the second paddle 692 moves along a predetermined route.
In the paddle advance / retreat mechanism 400, the connecting member 420 advances and retreats with respect to the paper stacking unit 60 as the drive member 410 rotates, and thereby the second paddle 692 advances and retracts with respect to the paper stacking unit 60.

Furthermore, in this embodiment, a cover member 480 is provided as an example of the second installation member.
The cover member 480 is provided above the discharge port 490 used for discharging the sheet bundle T. The cover member 480 is provided on the side opposite to the side where the advancement body 300 is provided with the second paddle 692 interposed therebetween. Further, the cover member 480 is installed with a gap G2 between the cover member 480 and the second paddle 692.

Further, in the present embodiment, a regulating member 90 that regulates the movement of the paper P is provided.
The restricting member 90 is attached to the lower part of the advancing body 300. Further, the regulating member 90 extends toward the cover member 480 when the portion attached to the advancement body 300 is a starting point, and further reaches the outside of the cover member 480 through the lower portion of the cover member 480. Yes.
Further, FIG. 3 shows a state in which the advancing body 300 is retracted from the paper stacking unit 60. In this state, the regulating member 90 is pressed against the lower end portion 480A of the cover member 480.

Further, in the present embodiment, an opening 89 for passing the second paddle 692 is provided between the advancement body 300 and the lower end portion 480A of the cover member 480. The opening 89 is provided so as to cross the opening 89.
Furthermore, the regulating member 90 of the present embodiment is formed of a resin plate material and has elasticity.

FIG. 4 is a view of the second paddle 692, the advancing body 300, the regulating member 90, and the like viewed from the direction of arrow IV in FIG.
In the present embodiment, four second paddles 692 are provided, and the four second paddles 692 are arranged in the left-right direction (a direction orthogonal to the conveyance direction of the paper P) in the drawing. The four second paddles 692 are supported by a common rotating shaft 692A, and rotate by receiving a driving force from the rotating shaft 692A.
Further, the advancing body 300 is positioned below the second paddle 692. Two movable rolls 62 are attached to the advancement body 300. The two movable rolls 62 are also supported by a common rotating shaft 62B.

Further, in the present embodiment, the regulating member 90 is attached to the central portion in the width direction of the advancement body 300. The restricting member 90 extends in the front direction in the drawing through the rotating shaft 62 </ b> B that supports the movable roll 62 and the rotating shaft 692 </ b> A that supports the second paddle 692.
In the present embodiment, the regulating member 90 is located between the two second paddles 692 located at the center of the four second paddles 692. Further, the regulating member 90 is located between the two movable rolls 62.

FIG. 5 is a view showing the regulating member 90 before being attached to the advancement body 300. In other words, it is a view showing the regulating member 90 in a natural state.
The regulating member 90 of the present embodiment is bent at the center in the longitudinal direction, and the regulating member 90 is formed to be warped. In other words, it is formed in a bent state so as to be convex downward.

The restricting member 90 includes a base portion 90A attached to the advancing body 300 and an inclined portion 90B connected to the base portion 90A and disposed at an angle with respect to the base portion 90A.
Here, the angle θ formed by the base portion 90A and the inclined portion 90B is an obtuse angle. Furthermore, in this embodiment, a part of the regulating member 90 is folded back to the base 90A side at the tip of the inclined portion 90B, and the regulating member 90 of the present embodiment has a folded portion 90C.

The movement of the second paddle 692 and the like will be described with reference to FIG.
Here, in the present embodiment, the second paddle 692 descends from the state shown in FIG. 3, and the protruding portion 93 of the second paddle 692 contacts the end YT of the sheet bundle T.
In the present embodiment, when the sheet bundle T is generated, the second paddle 692 is always rotating, and the second paddle 692 advances and retreats with respect to the sheet stacking unit 60 while rotating.

Here, in this embodiment, when the size of the paper P is small, the end portion YT of the paper P (paper bundle T) is positioned immediately below the second paddle 692, as shown in FIG.
In this case, when the second paddle 692 comes into contact with the paper P, a force for turning the end YT acts on the paper P, and the end YT of the paper P moves in the thickness direction of the paper P. In other words, the end YT of the paper P moves upward in the figure, and the paper P tries to float up.

In this case, the end portion YT may enter the gap G1 between the second paddle 692 and the advancing body 300.
When the end YT of the paper P enters the gap G1, the movement of the new paper P that is supplied next is restricted by the paper P that has entered the gap G1, so that the stacking of the paper P and the jamming of the paper P are prevented. It will occur.

In the present embodiment, a regulating member 90 is provided to prevent the paper P from entering the gap G1. In the present embodiment, when the end portion YT of the paper P is going toward the gap G <b> 1, the end portion YT hits the regulating member 90. In other words, in the present embodiment, the restricting member 90 is installed so as to straddle the gap G1, and the movement of the paper P that is going toward the gap G1 is restricted.
Thereby, the approach of the end YT to the gap G1 is suppressed. In this case, paper P stacking disturbance and paper P jamming are less likely to occur.

In the present embodiment, there is a gap G2 between the cover member 480 and the second paddle 692, and the end portion YT of the paper P may enter the gap G2.
In contrast, in the present embodiment, the regulating member 90 is also provided in the gap G2 (the regulating member 90 is provided so as to straddle the gap G2), and the cover member 480, the second paddle 692, The sheet P is also prevented from entering the gap G2 between the two.

The restricting member 90 is provided along the moving direction of the newly supplied paper P.
Specifically, in the present embodiment, the paper P newly supplied to the paper stacking unit 60 moves along the direction indicated by the arrow 3A in FIG. The regulating member 90 is provided along the direction indicated by the arrow 3A.

Accordingly, the paper P newly supplied to the paper stacking unit 60 can be moved more smoothly than in the case where the regulating member 90 is not along the moving direction of the paper P.
In other words, if the regulating member 90 is placed in the direction of movement of the newly supplied paper P, even if the paper P comes into contact with the regulating member 90, the paper P is easily moved downstream.

6A and 6B are diagrams for explaining the movement of the regulating member 90. FIG.
FIG. 6A is a diagram illustrating a state of the regulating member 90 when the second paddle 692 has advanced with respect to the paper stacking unit 60.
In the present embodiment, when the second paddle 692 advances with respect to the paper stacking unit 60, the regulating member 90 is pressed by the second paddle 692 and bends so that a part thereof is directed toward the paper stacking unit 60 (elasticity). Deform).
In this embodiment, the restricting member 90 is positioned on the movement path of the second paddle 692 (rotary shaft 692A). However, since the restricting member 90 is elastically deformed, the movement of the second paddle 692 is restricted. It is not obstructed by 90.

Here, in the present embodiment, as shown in FIG. 5, the distal end portion of the regulating member 90 is folded back toward the base portion 90A, and the regulating member 90 of the present embodiment has a folded portion 90C.
Thereby, it is suppressed that the edge of the base material which comprises the control member 90 contacts the paper P, and a damage | wound etc. on the paper P are suppressed.

Here, in the example illustrated in FIG. 6A, the regulating member 90 protrudes toward the paper stacking unit 60, and the leading end of the regulating member 90 may come into contact with the paper P on the paper stacking unit 60. There is.
More specifically, when a sheet P larger in size than the sheet P shown in FIG. 6A is stacked, the leading end of the regulating member 90 may come into contact with the sheet P. .

  By the way, in this embodiment, the front-end | tip part of the control member 90 is turned back, and in this embodiment, when the control member 90 contacts with the paper P, the connection which the bending part 90C and the inclination part 90B connect. The portion 90D (see FIG. 5) contacts the paper P. Thereby, it is suppressed that the paper P is damaged.

Here, in this embodiment, in the manufacture of the regulating member 90, a plate material as a material is cut to form a base material from which the regulating member 90 is formed, and then the base material is bent. To form the restricting member 90. The regulating member 90 manufactured through such a process is assumed to have a rough periphery, and if the peripheral portion is brought into contact with the paper P, the paper P may be damaged.
On the other hand, in this embodiment, as described above, the connection portion 90D where the bent portion 90C and the inclined portion 90B are connected contacts the paper P. In such a case, the peripheral portion of the base material is prevented from coming into contact with the paper, and the paper P is prevented from being damaged.

FIG. 6B is a diagram illustrating a state of the regulating member 90 when the advancing body 300 (the movable roll 62) has advanced to the paper stacking unit 60.
In the present embodiment, as described above, the regulating member 90 is warped. For this reason, as shown in FIG. 6B, even if the advancement body 300 advances, the inclined portion 90B side of the regulating member 90 faces the cover member 480 and contacts the cover member 480.

Thereby, in this embodiment, even after the advancing body 300 has advanced, the opening 89 (see FIG. 3) located between the advancing body 300 and the cover member 480 is closed.
In addition, in this embodiment, even if the advancement body 300 advances, the regulating member 90 is disposed so as to straddle the gap G1 (see FIG. 3) and the gap G2. The entry of the paper P into the gap G2 is suppressed.

  Further, in the present embodiment, as shown in FIG. 6B, when the advancement body 300 has advanced to the paper stacking portion 60, the inclined portion 90B of the restriction member 90 (a part of the restriction member 90) is on the right side in the drawing. As it advances in the direction, it is arranged in an inclined state so as to gradually move away from the sheet bundle T of the sheet stacking unit 60.

More specifically, in this embodiment, a movable roll 62 is attached to the advancing body 300, and the advancing body 300 moves the paper P of the paper stacking unit 60 in one direction (the direction indicated by the arrow 6C in the drawing). Has a function to send out.
In the present embodiment, when the advancing body 300 has advanced to the paper stacking portion 60 (in the state shown in FIG. 6B), the downstream side portion (the portion of the inclined portion 90B) in this one direction of the regulating member 90. ) Is inclined so as to gradually move away from the sheet bundle T of the sheet stacking unit 60 as it proceeds downstream in this one direction. In other words, the downstream portion is disposed in an inclined state with respect to the one direction.

Thereby, in this embodiment, as the control member 90 approaches the sheet bundle T of the sheet stacking unit 60 as it goes downstream in one direction, the paper P can be sent out more smoothly by the advancing body 300.
Here, when the regulating member 90 approaches the sheet bundle T as it proceeds downstream in one direction, the sheet bundle T contacts the regulating member 90 when the sheet bundle T is moved to the stacker 80 (see FIG. 2). However, the sheet bundle T may be difficult to move.

Further, when the restricting member 90 approaches the sheet bundle T as it proceeds downstream in one direction, the restricting member 90 comes into contact with the sheet bundle T when the advancement body 300 advances to the sheet stacking unit 60. There is a possibility that the positional deviation of the paper P included in the paper bundle T may occur.
In addition, in this embodiment, every time a new paper P is supplied to the paper stacking unit 60, the advancement body 300 is advanced to the paper stacking unit 60 (details will be described later). On the other hand, when the regulating member 90 comes into contact, there is a possibility that the position of the sheet P included in the sheet bundle T is displaced.
On the other hand, when the regulating member 90 is warped as in this embodiment, the regulating member 90 is prevented from coming into contact with the paper P when the advancing body 300 advances to the paper stacking unit 60. Misalignment is suppressed.

In the above description, the configuration in which the regulating member 90 is attached to the advancing body 300 has been described as an example. In other words, the configuration in which the regulating member 90 is attached to the advancing body 300 that is a moving body has been described as an example. By the way, the attachment destination of the regulating member 90 is not limited to the advancing body 300 and may be the main body side of the recording material processing apparatus 2.
Specifically, for example, as shown in FIG. 7 (a diagram showing another configuration example of the recording material processing apparatus 2), a regulating member 90 may be attached to the cover member 480.

In this case, when the second paddle 692 advances to the paper stacking unit 60, the regulating member 90 is deformed as indicated by a broken line.
Also in this case, the movement of the end portion YT of the paper P about to float by the second paddle 692 is restricted by the restriction member 90. Also in this case, the end portion YT of the paper P enters the gap G1 located between the advancing body 300 and the second paddle 692 or the gap G2 located between the cover member 480 and the second paddle 692. It is suppressed.

FIGS. 8A, 8 </ b> B, and 8 </ b> C are diagrams for explaining the movement of the movable roll 62.
In the present embodiment, as described above, when the sheet bundle T is moved to the stacker 80, the movable roll 62 is advanced toward the sheet stacking unit 60.
Furthermore, in this embodiment, every time a new paper P is supplied to the paper stacking unit 60, the movable roll 62 is advanced toward the paper stacking unit 60. More specifically, every time the paper is newly supplied to the paper stacking unit 60, the movable roll 62 advances to the paper stacking unit 60 and the movable roll 62 is retracted from the paper stacking unit 60.

FIG. 8A shows the state of the movable roll 62, the second paddle 692, and the like when the trailing edge of the paper P is detected by the paper detection sensor S.
In the present embodiment, as shown in FIG. 8A, when the trailing edge of the newly supplied paper P is detected by the paper detection sensor S, the second paddle 692 advances toward the paper stacking unit 60. To do.
When the second paddle 692 advances toward the paper stacking unit 60, the second paddle 692 comes into contact with the newly supplied paper P, and the paper P is urged toward the end guide 64. .

Here, in the present embodiment, as described above, when the second paddle 692 is advanced, the second paddle 692 comes into contact with the end YT of the paper P, and the end YT becomes the second paddle. 692 may be lifted.
In this case, as described above, the end YT may enter the gap G1 (see FIG. 3) or the gap G2.

Therefore, in the present embodiment, the movable roll 62 (advancing body 300) is advanced toward the paper stacking unit 60 as indicated by an arrow 8A in FIG.
In addition, in this embodiment, in addition to providing the regulating member 90 as described above, the movable roll 62 is advanced toward the paper stacking unit 60.

More specifically, in this embodiment, after a predetermined time has elapsed after the trailing edge of the paper P is detected by the paper detection sensor S, the advance / retreat mechanism 310 (see FIG. 3) is driven to move. The roll 62 is advanced toward the paper stacking unit 60.
More specifically, in this embodiment, after the retraction of the second paddle 692 that has advanced to the paper stacking unit 60 is started, the advance of the movable roll 62 to the paper stacking unit 60 is started.

  More specifically, in this embodiment, before the new paper P is supplied to the paper stacking unit 60, the movable roll 62 is retracted from the paper stacking unit 60. After being supplied to 60, the movable roll 62 advances toward the paper stacking unit 60.

Here, if the movable roll 62 is advanced before the second paddle 692 starts to be retracted, the sheet P to be moved toward the end guide 64 using the second paddle 692 is moved to the movable roll 62. There is a risk that it will be difficult to move by touching.
For this reason, in this embodiment, after the second paddle 692 starts to be retracted from the paper stacking unit 60, the advance of the movable roll 62 to the paper stacking unit 60 is started.

In addition, when the paper P supplied to the paper stacking unit 60 is larger than a predetermined size, a process in which the movable roll 62 is not advanced may be performed.
This is because when the size of the paper P is larger than a predetermined size, the second paddle 692 does not contact the end YT of the paper P, and the paper P does not lift up.

Here, when the movable roll 62 is advanced even when the size of the paper P is large, the movable roll 62 is advanced although it is not necessary, and the movable roll 62 is moved closer to the moving path of the paper P. 62 will be located. In such a case, the possibility that the supplied paper P comes into contact with the movable roll 62 increases, and the possibility that the movement of the paper P is restricted increases.
On the other hand, in the case where the movable roll 62 is not moved, unnecessary contact of the paper P with the movable roll 62 is avoided, and the paper P can be moved more smoothly.

FIG. 8B shows a state after the movable roll 62 is advanced to the paper stacking unit 60.
When the movable roll 62 advances to the paper stacking unit 60, the movable roll 62 approaches the paper bundle T of the paper stacking unit 60. As a result, the movement of the paper P about to rise is restricted.

Here, in the present embodiment, as shown in FIG. 8B, the movable roll 62 sandwiches the sheet bundle T placed on the sheet support surface 67A of the support member 67, and is opposed to the sheet support surface 67A. Placed in.
In the present embodiment, when the movable roll 62 advances to the paper stacking unit 60, the movable roll 62 advances toward the paper support surface 67A and is disposed opposite to one surface of the paper P on the paper support surface 67A. . As a result, the paper P about to rise comes into contact with the movable roll 62 and its movement is restricted.

More specifically, in this embodiment, when the second paddle 692 contacts the end YT of the paper P, the end YT is displaced in the thickness direction of the paper P.
At this time, in this embodiment, the movable roll 62 as an example of a restraining member is positioned at a position opposite to the end portion YT, and the displacement (variation in the thickness direction of the paper P) of the end portion YT is restrained. It is done.

FIG. 8C shows the state of the movable roll 62 and the second paddle 692 when a new sheet P is further conveyed.
In the present embodiment, when a new sheet P is conveyed from the upstream side, the leading end of the sheet P is detected by the sheet detection sensor S. In this case, in this embodiment, the movable roll 62 is retracted upward as indicated by an arrow 8C.
Accordingly, the new paper P is suppressed from coming into contact with the movable roll 62, and the movement of the new paper P is suppressed from being regulated by the movable roll 62.

Thereafter, in this embodiment, new sheets are sequentially supplied to the sheet stacking unit 60. When a predetermined number of sheets P are stacked on the sheet stacking unit 60 (when the sheet bundle T is generated), the binding process by the binding unit 51 (see FIG. 2) is performed.
Thereafter, in the present embodiment, the movable roll 62 advances again toward the paper stacking unit 60, and the paper bundle T is sandwiched between the movable roll 62 and the transport roll 61. Then, the movable roll 62 and the transport roll 61 are rotated, and the sheet bundle T is transported to the stacker 80.

In the processing described above, as shown in FIG. 8B, when the movable roll 62 is advanced toward the paper stacking unit 60, the movable roll 62 is not pressed against the paper bundle T. More movable rolls 62 may be advanced to press the movable roll 62 against the sheet bundle T of the sheet stacking unit 60.
In this case, as compared with the case where the movable roll 62 is not pressed against the sheet bundle T, the swelling of the sheet bundle T of the sheet stacking unit 60 can be reduced.

Here, in the present embodiment, the movable roll 62 is advanced and retracted by using a stepping motor, and the position of the movable roll 62 can be adjusted (adjustment of the movable roll 62 can be adjusted).
If the movable roll 62 is advanced to a position closer to the paper stacking unit 60, the movable roll 62 can be pressed against the paper bundle T as described above.

Further, in the above, the movable roll 62 is used to suppress the displacement of the paper P of the paper stacking unit 60 (displacement in the thickness direction of the paper P), but a dedicated member for suppressing the displacement is installed, The displacement of the paper P may be suppressed.
Further, in the above description, the movable roll 62 is advanced and retracted every time the paper P is transported to the paper stacking unit 60. However, when the first paper P constituting the paper bundle T is transported. Alternatively, the movable roll 62 may be advanced and the movable roll 62 may remain advanced until the last sheet P constituting the sheet bundle T is conveyed.

Furthermore, the advance position of the movable roll 62 may be changed according to the number of sheets P constituting the sheet bundle T.
Specifically, for example, when the number of sheets P constituting the sheet bundle T is smaller than a predetermined number, the movable roll 62 is advanced to the first position, and the sheets P constituting the sheet bundle T are moved. When the number of sheets is equal to or greater than the predetermined number, the movable roll 62 may be advanced to a second position that is farther from the sheet stacking unit 60 than the first position.

Further, as new paper P is supplied to the paper stacking unit 60, the advance position of the movable roll 62 may be gradually separated from the paper stacking unit 60.
Specifically, when the number of sheets P stacked on the sheet stacking unit 60 is smaller than a predetermined number, the movable roll 62 is advanced to the first position, and the number of sheets P stacked gradually increases. When the number of sheets P stacked on the sheet stacking unit 60 exceeds a predetermined number, the movable roll 62 is moved to a second position farther from the sheet stacking unit 60 than the first position. May advance.

(Other)
The lift of the sheet P caused by the contact of the second paddle 692 with the end YT of the sheet bundle T is also caused by the configuration example shown in FIG. 9 (a diagram illustrating another configuration example of the recording material processing apparatus 2). Occurrence can be suppressed.
In the configuration example shown in FIG. 9, the end guide 64 is moved so as to approach the second paddle 692, and the stacking position of the sheets P is shifted to the second paddle 692 side.
Specifically, in this configuration example, when the size of the sheet P is smaller than a predetermined size, the end guide 64 is moved so as to approach the second paddle 692, and the stacking position of the sheet P is moved to the second paddle. It is shifted to the 692 side.

As a result, the generation position of the sheet bundle T is shifted to the second paddle 692 side, and the end portion YT of the sheet bundle T is positioned at a position off the position immediately below the second paddle 692. In this case, the contact of the second paddle 692 with the end portion YT of the sheet bundle T is avoided, and the lifting of the sheet P is suppressed.
In this configuration example, the end guide 64 is moved to move the stacking position of the paper P. However, another member different from the end guide 64 may be moved to move the stacking position of the paper P. Good.

  Further, in the image forming system 500 of the present embodiment, as illustrated in FIGS. 1 and 2, the recording material processing apparatus 2 including the binding mechanism and the punching mechanism has been described as an example. In addition, a mechanism such as a folding mechanism or a booklet creation unit may be provided.

DESCRIPTION OF SYMBOLS 1 ... Image forming apparatus, 2 ... Recording material processing apparatus, 60 ... Paper stacking part, 62 ... Movable roll, 67A ... Paper support surface, 90 ... Restriction member, 300 ... Advancement body, 500 ... Image forming system, 692 ... 2nd Paddle, G1 ... Gap, G2 ... Gap, P ... Paper, YT ... End

Claims (8)

A recording material loading section on which the recording material is loaded;
A rotating member that contacts the recording material of the recording material stacking unit and biases the recording material in a direction in which the recording material extends;
A suppressing member that suppresses displacement in the thickness direction of the recording material, which occurs when the rotating member contacts the end of the recording material;
A recording material processing apparatus comprising:   The holding member is retracted from the recording material stacking unit before a new recording material is supplied to the recording material stacking unit, and the new recording material is supplied to the recording material stacking unit. The recording material processing apparatus according to claim 1, wherein the recording material processing unit advances toward the recording material stacking unit. The recording material stacking portion is provided with a recording material support surface for supporting the recording material to be loaded.
The recording material processing apparatus according to claim 1, wherein the holding member is disposed at a position facing the recording material support surface. The rotating member and the restraining member perform advance and retreat from the recording material stacking unit each time recording material is supplied to the recording material stacking unit,
The recording material processing apparatus according to claim 1, wherein after the retraction of the rotating member from the recording material stacking unit is started, the advancement of the restraining member to the recording material stacking unit is started.   The recording material processing apparatus according to claim 1, wherein the pressing member is pressed against the recording material of the recording material stacking unit.   When the new recording material is larger than a predetermined size, the restraining member advances toward the recording material stacking unit every time a new recording material is supplied to the recording material stacking unit. The recording material processing apparatus according to claim 1, wherein the advancement is not performed when the new recording material is supplied.   The holding member is a rotating member, and after a predetermined number of recording materials are stacked on the recording material stacking unit and a recording material bundle is generated, the recording material bundle rotates after contacting the recording material bundle. The recording material processing apparatus according to claim 1, wherein the recording material processing apparatus is moved. Image forming means for forming an image on a recording material;
A recording material stacking unit on which recording materials on which image formation has been performed by the image forming unit are stacked;
A rotating member that contacts the recording material of the recording material stacking unit and biases the recording material in a direction in which the recording material extends;
A suppressing member that suppresses displacement in the thickness direction of the recording material, which occurs when the rotating member contacts the end of the recording material;
An image forming system comprising:

Images