JP2007039145A - Paper sheet processing unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper sheet processing unit capable of ensuring a paper sheet advancing path when a paper sheet advances, guiding the paper sheet to a predetermined position even when the thickness or the size of the paper sheet is changed, and reliably holding a rear end side of the paper sheet during the temporary storage. <P>SOLUTION: The paper sheet processing unit comprises a paper sheet conveying unit 10 for conveying a paper sheet 3' to a predetermined position, and a binder paper jogging unit 30 for jogging paper sheets 5 conveyed by the paper sheet conveying unit 10 and temporarily storing them. The binder paper jogging unit 30 has a paper sheet guide and hold mechanism 31. The paper sheet guide and hold mechanism 31 guides the paper sheets 3' at the predetermined position when the paper sheets advance, and presses the rear end side of the paper sheets when the paper advancement is completed. By this configuration, the paper advance path can be ensured when the paper sheets advance, and the curl of the paper sheets can be corrected. Thus, even when the thickness and the size of the paper sheets 3' are changed, the paper sheets 3' can be led to the predetermined position, and the rear end side of the paper sheets 3' can be reliably pressed during the temporary storage. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a paper processing apparatus suitable for use in a binder paper aligning unit that aligns and binds recording paper output from a black-and-white or color copier or printing apparatus. Specifically, a paper holding means having a paper guide pressing mechanism is provided, and when a paper enters when a plurality of papers are aligned and temporarily held, the paper is guided to a predetermined position and a paper entrance path when the paper enters can be secured. In addition, the curl of the paper can be corrected, and even if the thickness or size of the paper changes, the paper is guided to a predetermined position, and after the paper entry is completed, the rear edge side of the paper The rear end side of the sheet can be securely pressed and placed during temporary holding.

  In recent years, there are many cases where a punching device is used in combination with a black-and-white and color copier or printing device. According to this type of punching apparatus, the recording paper after image formation is received and punched on the downstream side of the paper using the punch function. The punched sheets are aligned again, and the binding process such as ring binding is automatically performed using the holes.

  By the way, a paper storage unit is provided on the downstream side of the punch processing unit, and the papers are aligned and temporarily stored. The sheet holding unit has a height of the conveyance path larger than the sheet conveyance path through which one sheet passes so that a plurality of sheets can be reserved. On the other hand, in many cases, the paper is U-turned through a plurality of transport rollers or is transported in an R shape and reaches the paper storage section. In such a case, the sheet-like paper may be curled. If the paper curls, it will block the travel path. Therefore, measures are taken so that the travel path is not blocked.

  According to Patent Document 1, a paper processing device is disclosed in relation to a paper processing device provided with this type of curl countermeasure. According to this sheet processing apparatus, the sheet bending correction means is provided, and the bending of the edge of the sheet parallel to the sheet conveying direction on the sheet stacking surface of the staple tray is corrected. With such means, the lateral sheet can be satisfactorily aligned with the sheet with the curled side face.

  Patent document 2 discloses a sheet processing apparatus. According to this sheet processing apparatus, at the time of stapling a bundle of sheets, the sheet is stapled while being stored in the sheet storage bin. In this way, since it is not necessary to move the sheet, it is possible to prevent the sheet bundle from being gripped and to prevent the gripping failure, and to perform the stapling process reliably.

  According to Patent Document 3, a paper post-processing apparatus is disclosed. According to this sheet post-processing apparatus, the sheet bundle is exposed by retracting the movable piece for pivoting the sheet from the rear edge of the bin so as not to interfere with the stapler operation at the time of stapling the sheet bundle. In this way, an arbitrary number of staples can be applied at an arbitrary position excluding the central portion of the sheet bundle.

Japanese Patent Laying-Open No. 2002-321868 (FIG. 2 on page 3) Japanese Examined Patent Publication No. 08-025684 (Fig. 1 on page 3) Japanese Patent Application Laid-Open No. 09-175723 (FIG. 2 on page 2)

  However, the conventional paper processing apparatus has the following problems.

  i. According to the processing apparatus described in Patent Document 1, when the rear end side of the paper is pressed and the front end of the paper is to be bound with the binding component, the rear end side of the paper is moved by the correcting means of Patent Document 1. By pressing with the pressing member, it is difficult to reliably press the rear end side of the sheet even if the curl can be corrected or the thickness of the sheet bundle is increased.

ii. In addition, according to the paper processing apparatuses described in Patent Documents 2 and 3, when the paper bundle temporarily held in the paper holding unit is further moved in the transport direction to perform post-processing, the presser member comes off from the rear edge of the paper. It becomes difficult to hold the position close to the rear end side of the sheet securely during post-processing.

  Accordingly, the present invention solves the above-described problem, and enables a paper entry path when paper enters to be secured, and allows the paper to be stored in a predetermined state even when the thickness or size of the paper changes. It is an object of the present invention to provide a sheet processing apparatus that can guide the sheet to a position and can reliably press and place the trailing end of the sheet during temporary holding.

  In order to solve the above-described problem, a paper processing apparatus according to claim 1 is a paper processing apparatus that aligns predetermined papers and temporarily holds them, paper transporting means for transporting papers to a predetermined position, and the paper transporting device. And a paper holding means for temporarily holding the paper conveyed by the means, and the paper holding means has a paper guide pressing mechanism, and the paper guide pressing mechanism guides the paper to a predetermined position when the paper enters. The rear end side of the paper is pressed after completion of paper entry.

  According to the sheet processing apparatus of the present invention, the sheet holding unit has the sheet guide pressing mechanism. Based on this premise, the sheet conveying means conveys the sheet to a predetermined position. The paper holding means guides the paper to a predetermined position at the time of paper entry by the paper guide press mechanism when aligning and temporarily holding a plurality of papers conveyed by the paper conveyance means, and after completion of paper entry, The rear end side is pushed in.

  Therefore, when the paper enters, it is possible to secure the paper entrance path and correct the curl of the paper, so that even if the thickness or size of the paper changes, the paper is guided to a predetermined position; and During the temporary holding, the rear end side of the paper can be securely pressed and placed.

  According to the sheet processing apparatus of the first aspect of the present invention, the sheet processing unit includes a sheet storage unit that aligns and temporarily stores a plurality of sheets, and the sheet storage unit includes a sheet guide press mechanism, The paper is guided to a predetermined position, and after the paper entry is completed, the rear end side of the paper is pressed.

  With this configuration, it is possible to secure a paper entry path and correct paper curl when entering paper. Therefore, even when the thickness or size of the paper changes, the paper can be guided to a predetermined position, and the rear end side of the paper can be surely pressed and placed during temporary holding. As a result, when the paper is moved in a process after aligning the paper, the individual paper is not displaced, and the presser member comes off from the rear edge of the paper, or the paper is caught. Therefore, the moving process can be performed with a series of sheets fixed.

  Hereinafter, a sheet processing apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a conceptual diagram illustrating a configuration example of a binding device 100 to which a paper processing device according to a first embodiment of the invention is applied.

  A binding apparatus 100 shown in FIG. 1 constitutes an example of a paper processing apparatus, punches recording paper (hereinafter simply referred to as paper 3) output from a copier or printing apparatus, and then performs predetermined binding components (consumables). ) 43 for binding and discharging. Of course, the sheet processing apparatus may be applied only to an apparatus that arranges predetermined sheets 3 and temporarily holds them. The binding device 100 has a device main body (housing) 101. The binding apparatus 100 is preferably used side by side with a copying machine, a printing machine (image forming apparatus), and the like, and the apparatus main body 101 has a height comparable to that of a copying machine, a printing machine, or the like.

  In the apparatus main body 101, a paper transport unit 10 that constitutes an example of a paper transport unit is provided. The paper transport unit 10 includes a first transport path 11 and a second transport path 12. The transport path 11 has a paper feed port 13 and a discharge port 14, and has a through-pass function for transporting the paper 3 drawn from the paper feed port 13 toward the discharge port 14 at a predetermined position.

  Here, the through-pass function means that the conveyance path 11 positioned between the upstream copying machine or printing machine and the downstream downstream sheet processing apparatus transfers the sheet 3 from the copying machine or printing machine to another sheet processing apparatus. A function that directly transfers When this through-pass function is selected, the later-described conveyance roller acceleration processing, binding processing, and the like are omitted. The sheet 3 is usually sent face down in the case of single-sided copying. A paper feed sensor 111 is attached to the paper feed port 13 to detect the leading edge of the paper 3 and output a paper feed detection signal S11 to the control unit 50.

  The transport path 12 has a switchback function capable of switching the transport path from the transport path 11. Here, the switchback function decelerates and stops the conveyance of the sheet 3 at a predetermined position in the conveyance path 11, and then switches the conveyance path of the sheet 3 from the conveyance path 11 to the conveyance path 12, and The function to send in the reverse direction. The conveyance path 11 is provided with a flap 15 so that the conveyance path is switched from the conveyance path 11 to the conveyance path 12.

  Three transfer rollers 17c, 19a 'and 19a are provided at a switching point between the transfer path 11 and the transfer path 12. The transport rollers 17c and 19a rotate clockwise, and the transport roller 19a 'rotates counterclockwise. For example, the transport roller 19a 'is a driving roller and the transport rollers 17c and 19a are driven rollers. The sheet 3 taken in by the conveying rollers 17c and 19a ′ is decelerated and stopped. However, when the flap 15 is switched from the upper position to the lower position, the sheet 3 is fed by the conveying rollers 19a ′ and 19a and conveyed to the conveying path 12. The A paper detection sensor 114 is disposed in front of the three transport rollers 17c, 19a ′, 19a, and detects the front and rear ends of the paper and outputs a paper detection signal S14 to the control unit 50. .

  On the downstream side of the conveyance path 12, a punch processing unit 20 as an example of a punching unit is disposed. In this example, the conveyance path 11 and the conveyance path 12 are designed to have a predetermined angle. For example, a first depression angle θ <b> 1 is set between the conveyance surface of the conveyance path 11 and the sheet punching surface of the punch processing unit 20. Here, the paper perforated surface is a surface for perforating the paper 3. The punch processing unit 20 is disposed so as to set the sheet perforated surface at a position having a depression angle θ1 with respect to the transport surface of the transport path 11.

  The punch processing unit 20 switches back from the conveyance path 11 and punches two or more binding holes at one end of the sheet 3 conveyed by the conveyance path 12. The punch processing unit 20 includes, for example, a motor 22 that drives a punch blade 21 that can reciprocate. The sheets 3 are punched one by one by a punch blade 21 driven by a motor 22.

  An openable / closable fence 24 serving as a reference for the punching position is provided in the punch processing unit 20, and is used to apply the paper 3. Further, the punch processing unit 20 is provided with a side jogger 23 which is an example of a paper posture correcting means, and corrects the posture of the paper 3. For example, the leading edge of the paper 3 is in contact with the openable / closable fence 24 as an example of the position reference means. The fence 24 serves as a position reference when aligning the sheet edge. A paper detection sensor 118 is provided in front of the side jogger 23 to detect the front and rear edges of the paper and output a paper detection signal S18 to the control unit 50.

  The punch processing unit 20 stops the sheet 3 by bringing it into contact with the fence 24, and then punches the leading end of the sheet 3. A punch residue storage 26 is provided below the punch processing body so as to store punch scraps cut off by the punch blade 21. A paper discharge roller 25 as an example of a paper discharge unit is provided on the downstream side of the punch processing unit 20 so as to convey the paper 3 'after punching the paper to the next stage unit.

  A binder paper alignment unit 30, which is an example of a paper storage unit, is disposed downstream of the punch processing unit 20, and the temporary storage is performed by aligning the positions of the holes of a plurality of sheets 3 ′ discharged from the punch processing unit 20. (Accumulation) is done. The binder paper alignment unit 30 is disposed so as to set the paper holding surface at a position having the second depression angle θ2 with respect to the conveyance surface of the conveyance unit 11. Here, the sheet holding surface refers to a surface for holding (stacking) the sheets 3 ′ having holes formed therein. In this example, the relationship between the depression angle θ1 and the depression angle θ2 is set to θ1 <θ2. This setting is for reducing the width of the main apparatus 101 and for conveying the sheet 3 'linearly under this condition.

  The binder paper alignment unit 30 has a paper guide press function, and guides the paper 3 ′ to a predetermined position when the paper enters, and presses the rear end side of the paper 3 ′ after the paper entrance is completed. . Further, the binder paper aligning unit 30 has a paper leading edge corner aligning function, and when the paper enters, a multi-spindle-shaped rotating member (hereinafter referred to as a paddle roller unit) for aligning the leading end and the side end of the paper 3 ′ to the reference position. 37) is guided to the proper position of the sheet 3 '. The paddle roller unit 37 has a multiple fin structure in which a plurality of fins 704 having a predetermined thickness and predetermined elasticity are configured in a ring shape.

  The binder paper alignment unit 30 has a clamp moving mechanism 80. The clamp moving mechanism 80 is configured to move the paper guide pressing mechanism 31 holding the paper bundle 3 ″ in which the papers 3 ′ after punching the paper are stacked in the paper transport direction.

  Further, a bind processing unit 40 is disposed downstream of the binder paper alignment unit 30, and a booklet 90 is created by binding a plurality of sheet bundles 3 ″ aligned by the unit 30 with a binding component 43. The booklet 90 is a sheet bundle 3 ″ in which the binding component 43 is fitted and bound.

  In this example, the bind processing unit 40 has a moving mechanism 41. The moving mechanism 41 moves so as to reciprocate between the paper conveyance direction of the binder paper alignment unit 30 and the position orthogonal to the conveyance direction of the conveyance unit 11 described above. The binding processing unit 40 includes a binder (binding component) cassette 42. A plurality of binding components are set in the binder cassette 42. For example, the binding component is formed by injection molding, and a plurality of types are prepared according to the thickness of the sheet bundle 3 ″.

  For example, the moving mechanism 41 pulls out and holds one binding component 43 from the binder cassette 42 at a position orthogonal to the conveyance direction of the conveyance unit 11, and in this state, a position where the paper conveyance direction of the binder paper alignment unit 30 can be seen. To turn. At this position, the bind processing unit 40 receives the sheet bundle 3 ″ in which the punch holes are positioned from the binder paper aligning unit 30, and inserts the binding component 43 into the punch holes to execute the binding process (automatic bookbinding function). ).

  On the downstream side of the bind processing unit 40, a discharge unit 60 that constitutes an example of a discharge unit is disposed, and the booklet 90 created by the bind processing unit 40 is discharged. The discharge unit 60 includes, for example, a first belt unit 61, a second belt unit 62, and a stacker 63.

  The belt unit 61 constitutes an example of a booklet reception switching unit, and receives the booklet 90 falling from the binder paper alignment unit 30 and switches the sending direction. For example, the belt unit main body is turned in a predetermined discharge direction from a position where the binder paper alignment unit 30 can see the paper conveyance direction.

  The belt unit 62 constitutes an example of a booklet transport unit, and receives the booklet 90 whose sending direction is switched by the belt unit 61 and transports the booklet 90 by relay. The stacker 63 constitutes an example of a booklet accumulating unit, and stores the booklet 90 conveyed by the belt units 61 and 62.

Next, a paper processing method according to the present invention will be described. 2A to 2D are process diagrams illustrating an example of functions of the binding device 100.
The sheet 3 shown in FIG. 2A is fed from the upstream side of the binding device 100. The punch hole is not opened. The sheet 3 ′ is transported toward a predetermined position on the transport path 11 illustrated in FIG. 1, and is decelerated and stopped at a predetermined position on the transport path 11. Thereafter, the conveyance path of the sheet 3 ′ is switched from the conveyance path 11 to the conveyance path 12, and the sheet 3 is sent in the reverse direction and conveyed to the punch processing unit 20.

  In the punch processing unit 20, as shown in FIG. 2B, a predetermined number of binding holes are formed at one end of the paper 3. The sheet 3 ′ with the binding holes punched is conveyed to the binder sheet aligning unit 30. In the binder paper alignment unit 30, when the number of sheets 3 ′ reaches a preset number of sheets and becomes a sheet bundle 3 ″, the positions of the binding holes are aligned, and the binding component 43 cooperates with the binding processing unit 40. The booklet 90 into which the binding component 43 has been inserted can be obtained.

  FIG. 3 is a perspective view illustrating a configuration example of the binder paper alignment unit 30. The binder paper alignment unit 30 shown in FIG. 3 aligns and temporarily holds the paper 3 ′ transported by the paper transport unit 10.

  The binder paper alignment unit 30 has a paper guide (guide) pressing mechanism 31. The paper guide pressing mechanism 31 guides the paper 3 'to a predetermined position when the paper enters, and presses the rear end side of the paper 3' after the paper entrance is completed, for example, during the binding process.

  The paper guide pressing mechanism 31 includes, for example, a paper holding portion 32 and left and right rotatable guide portions 34a and 34b. The paper storage unit 32 is configured to accumulate and temporarily store the paper 3 '.

  The rotatable guide portion 34a constitutes an example of a guide member, and guides the paper 3 ′ to the paper holding portion 32 on one side when the paper enters, or presses the paper 3 ′ after the paper entrance is completed. Operate. The rotatable guide portion 34a includes, for example, a solenoid 301, a connecting rod 302, a guide frame 303a, a pressing member 304a, and a link mechanism 305a.

  The rotatable guide portion 34b operates to guide the paper 3 'to the paper holding portion 32 on the other side when the paper enters, or to press the paper 3' after completion of paper entry. The rotatable guide portion 34b includes, for example, a guide frame 303b, a pressing member 304b, and a link mechanism 305b.

  A pair of link mechanisms 305 a and 305 b are arranged on the left and right sides of the paper storage unit 32. The link mechanisms 305a and 305b are movably engaged by a connecting rod 302. For example, a solenoid 301 is attached to one link mechanism 305a. The solenoid 301 is attached to the paper storage unit main body.

  In this example, the reciprocating motion of the solenoid 301 is transmitted to the left and right link mechanisms to 305a and 305b. A guide frame 303a is attached to the link mechanism 305a, and a guide frame 303b is attached to the link mechanism 305b. Each of the guide frames 303a and 303b has an R curved surface (R) shape that protrudes upward in the paper surface of the paper 3 ', and guides the paper 3' to the paper storage unit 32. The solenoid 301 described above is configured to actuate the pressing members 304a and 304b by driving the guide frames 303a and 303b via the left and right link mechanism portions 305a and 305b.

  A pressing member 304a is rotatably attached to the tip of the guide frame 303a, and operates to press the paper 3 'after the paper entry is completed. The pressing member 304a is, for example, an injection mold product made of resin and has a flat bottom portion. The size is about 20 mm to 30 mm in width and about 60 mm to 80 mm in length. The thickness is about 8 mm to 10 mm.

  For example, the presser member 304a is configured to be a travel guide-shaped extension guide formed by the rotatable guide portion 34a when the paper enters, and the presser member 304a is always rotated when the presser function by the presser member 304a is released. It is urged by the urging member so as to have a traveling guide shape cooperating with the traveling guide shape by the possible guide portion 34a. The presser member 304a has a structure in which after the paper entry is completed, the presser member 304a is brought into contact with the paper 3 'and presses the paper 3' with a flat surface. The guide frame 303b and the pressing member 304b are configured similarly (see FIG. 6).

FIG. 4 is a block diagram illustrating a configuration example of a control system of the binder paper alignment unit 30.
A solenoid drive unit 35, a motor drive unit 36, a carry-out roller drive unit 122, and a motor drive unit 180 are connected to the control unit 50 shown in FIG.
The solenoid driving unit 35 is an example of a driving unit, and when the paper enters, the pressing function by the left and right pressing members 304 a and 304 b is released, and the pressing members 304 a and 304 b guide the sheet 3 ′ to the sheet holding unit 32. The rotatable guide portions 34a and 34b are controlled so as to function as travel guides. By this control, the rotatable guide portions 34a and 34b serve as travel guides for opening the holding members 304a and 304b on both sides and guiding the paper holding portion 32 when the paper enters.

  For example, during the binding process, the solenoid driving unit 35 closes the travel guide function by the pressing members 304a and 304b, and after the sheet 3 ′ in which the pressing members 304a and 304b are held in the sheet holding unit 32, during the binding process. The rotatable guide portions 34a and 34b are controlled so as to function as planar contact parts for pressing the end side. By this control, the rotatable guide portions 34a and 34b close the travel guide after completion of paper entry, and press the paper on the both sides on the rear end side of the paper 3 ′ accumulated in the paper holding portion 32. Made.

  The control unit 50 controls at least the output of the solenoid driving unit 35 to drive the rotatable guide units 34a and 34b in a time-sharing manner. For example, the control unit 50 outputs a paper discharge control signal S22 to the paper discharge roller driving unit 122 when the paper 3 'after punching is discharged. The paper discharge roller driving unit 122 discharges the punched paper 3 'downward based on the paper discharge control signal S22.

  The control unit 50 outputs a solenoid control signal S35 to the solenoid driving unit 35 while driving the paper discharge roller 25 or each time it is driven. The solenoid drive unit 35 drives the solenoid 301 based on the solenoid control signal S35 to release the pressing function by the pressing members 304a and 304b. In addition, the solenoid driving unit 35 drives the solenoid 301 based on the solenoid control signal S35 when paper enters, and performs a pressing function by the pressing members 304a and 304b. As a result, the paper guide presser mechanism 31 can be controlled.

  The motor drive unit 36 is connected to the control unit 50 and controls the paddle roller unit 37. The paddle roller unit 37 is provided with a motor 708. For example, the motor drive unit 36 inputs the motor control signal S36 from the control unit 50, drives the motor 708, and controls the paddle roller unit 37.

  The motor driving unit 180 is connected to the control unit 50 and controls the clamp moving mechanism 80. The clamp moving mechanism 80 is provided with a motor 308. For example, the motor drive unit 180 inputs the movement control signal S80 from the control unit 50, drives the motor 308, and controls the opening and closing of the clamp moving mechanism 80. The control unit 50 preferably executes control based on paper detection by the travel sensor 119.

  Next, an operation example of the binder paper alignment unit 30 will be described. FIG. 5 is a side view showing an operation example of the paper guide pressing mechanism 31 (at the time of paper entry). FIG. 6 is a perspective view showing a configuration example of the rotatable guide portions 34a and 34b on the paper.

  The paper guide pressing mechanism 31 shown in FIG. 5 guides the paper 3 'to a predetermined position when the paper enters. At this time, the solenoid driving unit 35 drives the guide frames 303a and 303b via the link mechanism units 305a and 305b to flip up the pressing members 304a and 304b. The guide frames 303a and 303b of the rotatable guide portions 34a and 34b are curved surfaces (R) provided below the frames, and hold the sheet 3 ′ that falls from its top or is forcedly discharged by the discharge roller 25 from the upper side. Guide to the section 32 is made.

  At this time, as shown in FIG. 6, the pressing members 304a and 304b have a structure that jumps upward sufficiently than the thickness of the sheet bundle 3 ″ accumulated in the sheet holding section 32. As a result, when the sheet enters. In addition, it is possible to secure a paper entry path to the paper storage unit 32 and to correct the curl of the paper 3 ', and the paper 3' is conveyed by the paper storage unit 32 until it reaches a paper alignment position (not shown).

  FIG. 7 is a side view showing an operation example of the paper guide presser mechanism 31 (when paper entry is completed). FIG. 8 is a perspective view showing a configuration example of the rotatable guide portions 34a and 34b on the paper.

  The paper guide pressing mechanism 31 shown in FIG. 7 is configured to press the rear end side of the paper 3 'when the paper entry is completed. At this time, the solenoid drive unit 35 drives the guide frame 303a of the rotatable guide unit 34a and the guide frame 303b of the rotatable guide unit 34b counterclockwise via the link mechanism units 305a and 305b. The guide frames 303a and 303b strongly press the pressing members 304a and 304b downward so that each pressing member 304a and 304b presses the sheet surface individually.

  At this time, as shown in FIG. 8, the pressing members 304a and 304b press the sheet 3 ′ per surface against the thickness of the sheet bundle 3 ″ sequentially accumulated in the sheet holding unit 32. As a result, after the sheet entry is completed. When the sheet bundle 3 ″ is moved by the above process or the like, the individual sheets 3 ′ of the sheet bundle 3 ″ are not displaced, and the pressing member is removed from the rear end side of the sheet 3 ′. The holding member is not hooked on 3 ′, and the moving process is performed in a state where a series of sheet bundles 3 ″ are fixed.

  For example, the paper guide pressing mechanism 31 is configured to guide the paper 3 ′ to the reference position and align the paper bundle 3 ″ by the motor driving unit 36. The motor driving unit 180 clamps based on the movement control signal S80. The moving mechanism 80 is controlled so that the leading edge of the sheet bundle 3 ″ is pressed by a comb blade member or the like. Thereafter, the clamp moving mechanism 80 puts the sheet bundle 3 ″ by applying a guide member to a position covering a part of the binding hole from the front surface and the back surface of the sheet bundle 3 ″ 3. In this state, the clamp moving mechanism 80 that sandwiches the sheet bundle 3 ″ shifts to a step of attaching a binding component to the sheet bundle 3 ″.

[Other embodiments]
The presser members 304a and 304b are made of an elastic member, and even if the member is deformed, the function of restoring to the original shape is used, and the function of the paper guide shape is used when entering the paper. When the sheet is being pressed, a function of flattening along the sheet surface may be used.

  As described above, according to the binding device 100 as the first embodiment, the binder paper alignment unit 30 has the paper guide pressing mechanism 31. Based on this premise, the paper transport unit 10 transports the paper 3 'to a predetermined position. The binder paper aligning unit 30 guides the paper 3 ′ to a predetermined position by the paper guide press mechanism 31 when the paper enters the paper 3 ′ when the paper 3 ′ is transported by the paper transport unit 10 and temporarily held. Then, after the paper entry is completed, the rear end side of the paper 3 'is pressed down.

  Accordingly, when the paper enters, the paper entrance path can be secured and the curl of the paper 3 ′ can be corrected. Therefore, even when the thickness or size of the paper 3 ′ changes, the paper 3 ′ is placed at a predetermined position. And the rear end side of the sheet 3 ′ can be reliably pressed and placed during temporary holding. As a result, when the sheet 3 ′ is moved in the process after the sheets 3 ′ are aligned, the pressing member is moved from the rear end side of the sheet 3 ′ without any positional displacement. The moving process can be performed in a state in which the series of sheets 3 ′ is fixed without being detached or hooking the pressing member on the sheet 3 ′.

FIG. 9 is a side view illustrating a configuration example of the sheet leading end corner alignment mechanism 39 in the binding device 100 according to the second embodiment.
The binding device 100 shown in FIG. 9 is configured to have a paper leading edge corner alignment mechanism 39 in the binder paper alignment unit 30. The paper leading edge corner alignment mechanism 39 guides the leading edge of the paper 3 ′ to an appropriate position of the paddle roller unit 37 for aligning the leading edge and the side edge of the paper 3 ′ to the reference position when the paper enters the paper holding portion 32. To be made. The sheet leading end corner aligning mechanism 39 includes a sheet holding section 32, a paddle roller unit 37, and two fillers 38a and 38b.

  The sheet storage unit 32 has a sheet conveyance path, and the sheet conveyance path is arranged obliquely with an arbitrary angle (an depression angle) θ2 with respect to the conveyance path 11 of the apparatus main body 101. If the paper transport path is arranged obliquely with respect to the transport path 11 of the apparatus main body 101 as described above, a mechanism that guides the paper 3 'by the fillers 38a and 38b hanging down by its own weight can be employed. . Therefore, the fillers 38a and 38b can be configured with a small amount of parts.

  The paddle roller unit 37 constitutes an example of a multi-spindle-shaped rotating member, and is disposed in the paper storage unit 32, so that the front end and the side end of the paper 3 'that has entered the paper storage unit 32 are aligned with the reference position. The paper 3 'is scraped.

  The fillers 38 a and 38 b constitute an example of a movable guide member, and guide the leading edge of the sheet 3 ′ to an appropriate position of the paddle roller unit 37. The fillers 38a and 38b are, for example, rod-shaped members (shafts) that are bridged (bridged from both sides) in the width direction of the paper retaining portion 32 at a position in front of the paddle roller unit 37 at a position where the traveling path of the paper retaining portion 32 can be seen. ) Is movably attached, and forms a rotating guide movable piece that hangs down under its own weight.

  In this example, the binder paper alignment unit 30 is attached obliquely (angle θ2) with respect to the apparatus main body 101, and the traveling path of the paper 3 ′ is inclined. Therefore, the fillers 38a and 38b are weighted by this weight. The guide function is configured by hanging.

  When such fillers 38a and 38b form a rotating guide movable piece, when the accumulated number of sheets 3 'increases and the total laminated thickness of sheets increases, the fillers 38a and 38b come into contact with the sheet 3'. However, since it is a weak pressing force, it does not hinder the entry of the paper 3 '. The fillers 38a and 38b have a center of gravity so as to form a travel guide shape to the paddle roller unit 37 when the fillers 38a and 38b hang down in the travel path under their own weight.

  Next, an example of the operation of the paper leading edge alignment mechanism 39 will be described. FIGS. 10A and 10B show functional examples of the fillers 38a and 38b (the sheet bundle 3 ″ is thin), and FIGS. 11A and 11B are explanatory diagrams showing functional examples of the fillers 38a and 38b (the sheet bundle 3 ″ is thick). It is.

  In this embodiment, the fillers 38 a and 38 b are disposed so as to be rotatable at positions in front of the paddle roller unit 37 in the paper storage section 32 in which the depression angle (inclination angle) θ 2 is set with respect to the paper conveyance surface of the conveyance path 11. Thus, the entry of the paper 3 'is not hindered.

  Under these operating conditions, when the sheet 3 ′ shown in FIG. 10A is fed from the upstream side, the fillers 38 a and 38 b guide the leading edge of the sheet 3 ′ to an appropriate position of the paddle roller unit 37. Made. When the number of sheets 3 ′ accumulated in the sheet storage unit 32 is small, the force with which the fillers 38a and 38b press the sheet 3 ′, which is the reaction force of the sheet 3 ′ trying to push the fillers 38a and 38b, is shown in FIG. As shown in FIG. If the gravity of the filler is g, the resultant force is the vector sum of the gravity g and the pressing force f1. The paddle roller unit 37 is adapted to scrape the paper 3 'in order to align the front end and the side edge of the paper 3' guided to an appropriate position by the fillers 38a and 38b.

  On the other hand, as shown in FIG. 11A, when the sheet bundle 3 ″ 37 becomes thicker, the fillers 38a and 38b, which are the reaction force of the force that the sheet 3 ′ tries to push away the fillers 38a and 38b, depress the sheet 3 ′. 11B, the force is f1 ′, since the self-gravity g of the filler does not change, the resultant force is the vector sum of the self-gravity g and the pressing force f1 ′. The relationship between the force by which the fillers 38a and 38b press the sheet 3 ′ is f1 ′> f1 when the sheet bundle 3 ″ is thick. Therefore, as the thickness of the sheet bundle 3 ″ increases, it is necessary. It is possible to cope with an increase in the pressing force of the sheet bundle 3 ″.

  In this way, since the fillers 38a and 38b are suspended by their own weights and are held so as to be rotatable, the total thickness of the paper accumulated in the paper holding unit 32 is increased and comes into contact with the fillers 38a and 38b. However, it can be configured to contact with a weak force without hindering the entry of the paper.

[Other embodiments]
In addition, a filler driving unit that drives the fillers 38a and 38b in a time-sharing manner may be provided, and the fillers 38a and 38b may be controlled in the rotation direction. In that case, the filler drive unit controls the entry timing of the sheet 3 ′ and the angles of the fillers 38a and 38b according to the total thickness so as to avoid the guide to the paddle roller unit 37 and the hindrance to the sheet entry. It may be.

  Further, an urging member may be attached to the fillers 38a and 38b to force the traveling guide function for the paddle roller unit 37. At that time, if the accumulated number of sheets 3 'increases and the total laminated thickness of sheets increases, a weak biasing force that does not hinder the entry of the sheet 3' may be set on the biasing member.

  Thus, according to the binding device 100 as the second embodiment, the binder paper alignment unit 30 has the paper leading edge corner alignment mechanism 39. On the premise of this, the discharge roller 25 conveys the sheet 3 ′ to a predetermined position of the sheet holding unit 32. In the binder paper alignment unit 30, when a plurality of sheets 3 ′ conveyed by the discharge roller 25 are aligned and temporarily held, the sheets 3 ′ are entered at the time of paper entry by the fillers 38 a and 38 b of the sheet leading edge alignment mechanism 39. The leading edge of the sheet 3 ′ is guided to an appropriate position of the paddle roller unit 37 for aligning the leading edge and the side edge of the paper to the reference position.

  Accordingly, the sheet 3 ′ can be scraped with good reproducibility from the appropriate position of the paddle roller unit 37 toward the reference position. Thereby, even if the paper 3 'flutters or curls the paper 3', the front end and the side edge of the paper 3 'can be aligned with the reference position. Note that even if the fillers 38a and 38b come into contact with the stacked sheets 3 'with the total thickness of the sheet bundle 3 "increased, the force does not hinder the entry of the sheets 3' because the fillers 38a and 38b come into contact with each other. Thus, since a mechanism for guiding the sheet 3 ′ is employed, the sheet leading end corner aligning mechanism 39 can be configured with a small amount of components.

FIG. 12 is a diagram illustrating a configuration example of the paddle roller unit 37 in the binding device 100 as the third embodiment.
A paddle roller unit 37 shown in FIG. 12 is a component mounted on the binding device 100 shown in FIG. The paddle roller unit 37 is mounted in the binder paper alignment unit 30 shown in FIG. It has a double fin structure. This structure maintains the bending repulsive force of the fin 704 within an appropriate range even when the bending state of the fin 704 changes as the thickness of the stacked sheet bundle 3 ″ changes, and the paddle roller unit 37 This is to suitably secure the scratching force.

  The paddle roller unit 37 includes, for example, a rotation main body 701, a belt drive shaft 702, and a drive main body 703. The belt drive shaft 702 is cantilevered, and the rotation main body at the tip of the belt drive shaft 702. A structure in which 701 is fixed by screwing is employed.

  A pair of paddle rollers 705a and 705b are arranged on the rotating main body 701. In this embodiment, a combination of the rotating main body 701 and the fins 704 is referred to as a paddle roller. The paddle rollers 705a and 705b are arranged on the left and right of the rotating main body 701. Eight sets (45 degrees) of fins 704 are attached to the paddle rollers 705a and 705b. For example, the paddle rollers 705a and 705b are configured by processing a thin rubber plate having a thickness of about 0.8 mm to 1.2 mm into a fin shape and placing the two on the outer periphery in a stacked manner. An elastic member such as rubber is used for the fin 704.

  The rotation main body 701 is detachable from the belt drive shaft 702, and the rotation main body 701 is fitted to the belt drive shaft 702 and fixed with screws 706 during assembly. At the time of disassembly, the screw 706 is loosened, and the rotary main body 701 is handled so as to be pulled out from the belt drive shaft 702.

  The drive main body 703 includes a gear unit 707, a motor 708, and a belt 709. The belt drive shaft 702 is movably engaged with bearing portions 711 and 712 provided in the gear unit 707. A gear unit 707 and a motor 708 are attached to the drive main body 703, and the rotational speed of the motor 708 is reduced by a predetermined gear ratio.

  The motor 708 is engaged with the gear of the gear unit 707 and drives the gear. The belt 709 is attached between the gear drive shaft 713 of the gear unit 707 and the belt drive shaft 702, and transmits the rotational force of the gear unit 707 to the belt drive shaft 702. In the paddle roller unit 37, when the belt drive shaft 702 rotates, the paddle rollers (rotating main body 701 + fins 704) 705a and 705b rotate. The double fin structure described above may be a paddle roller unit 37 configured by fins 704 having a shape in which the thickness of the base is made thinner than the thickness of the tip.

  FIG. 13 is a perspective view showing an exploded example of the paddle roller unit 37. The paddle roller unit 37 shown in FIG. 13 is in a state where the rotating main body 701 is pulled out from the belt drive shaft 702. In order to do this, a structure in which the rotating main body 701 can be detached from the belt driving shaft 702 by loosening the screw 706 screwed to the belt driving shaft 702 from the rotating main body 701 and removing the screw 706. It has become. Of course, the present invention is not limited to this, and the paddle roller unit 37 may have a structure in which the rotating main body 701 is fixed to the belt drive shaft 702 by latching.

  In FIG. 13, the rotating main body 701 is detachably engaged with the belt drive shaft 702 supported on one side by bearings 711 and 712 (cantilevered) on the other side. With such a configuration, since the paddle roller unit 37 is pulled out from the belt drive shaft 702, the paddle roller unit 37 can be replaced very easily. Further, only the rotating main body (paddle roller) 701 with fins can be replaced without disassembling the belt drive shaft 702 from the drive main body 703. Therefore, the cost of maintenance parts for regular replacement can be reduced.

  14A and 14B are diagrams illustrating an example of the function of the fin 704. FIG. In this embodiment, the degree of scraping of the fins 704 of the paddle roller unit 37 is compared between when the sheet bundle 3 ″ is thin and when the sheet bundle 3 ″ is thick. When the sheet bundle 3 ″ is thin as shown in FIG. 14A, the tip of the double-structured fin 704 is bent slightly. A stable bending force is ensured by the fin bending repulsive force due to the bending of the tip of the fin 704. .

  In addition, when the sheet bundle 3 ″ shown in FIG. 14B is thick, the tip of the double-structured fin 704 bends greatly. The bending of the tip of the fin 704 depends on whether the sheet bundle 3 ″ is thin or thick (insertion of the waist). Is different). Since the bending repulsion force is dispersed by the thin fin 704 having a double structure as compared with the thick fin 704 having a single structure, the accumulated number of sheets 3 ′ increases, and the sheet bundle 3 ″ (total laminated thickness) becomes larger. Even if the thickness is increased, the bending repulsive force of the fins 704 does not become so strong that the buckling of the sheet 3 ′ can be prevented.

  FIG. 15 is a top view illustrating an example of functions of the paddle roller unit 37. The belt drive shaft 702 of the paddle roller unit 37 shown in FIG. 15 has a predetermined angle θ5 with respect to the direction orthogonal to the paper transport direction. With this angle θ5, the paddle rollers 705a and 705b scrape the sheet 3 'from the sheet conveying direction to the corner of the sheet holding unit 32.

  For example, the first sheet 3 ′ is brought to the corner of the sheet holding unit 32 by the paddle rollers 705 a and 705 b, and the second sheet 3 ′ conveyed in the sheet carrying direction is also brought to the corner. The sheet 3 'that has reached the corner is pressed by the rotation of the paddle rollers 705a and 705b. As a result, the front end and the side end of the plurality of sheets 3 ′ can be aligned at the reference position.

  FIG. 16 is a perspective view showing a configuration example of a paddle roller unit 37 ′ as another embodiment. In the paddle roller unit 37 ′ shown in FIG. 16, the paddle rollers 725 a and 725 b are composed of semicircular divided parts, and the semicircular paddle rollers 725 a and 725 b are fixed while being wound around the belt drive shaft 722. To be made.

  For example, the paddle roller 725a is attached to the drive main body 703 ', and includes a rotary main body 721, a belt fixing screw 723, and a split component fastening screw 724. The rotation main body 721 is provided with a cut along the belt drive shaft direction so that the rotation main body 721 can be developed. The rotation main body 721 has a ring shape, and a fin 704 is attached to the outer peripheral part thereof, and a screw fixing part is provided adjacent to this part. The fin 704 has a double fin structure.

  The screw fixing portion is fixed to the belt drive shaft by a belt fixing screw 723, and the divided part of the rotating main body 721 is fastened by a divided part fastening screw 724. The other paddle roller 725b has the same configuration. When the belt drive shaft attached in this way is rotated, the paddle rollers 725a and 725b can be rotated. Note that the screwing of the paddle roller unit 37 ′ may be fixed by a latch.

  FIG. 17 is a perspective view showing an exploded example of the paddle roller unit 37 ′. The paddle roller unit 37 ′ shown in FIG. 17 is in a state where the paddle rollers 725 a and 725 b are removed from the belt drive shaft 722.

  For example, in the attachment state of the belt drive shaft 722 shown in FIG. 16, first, the belt fixing screw 723 and the split component fastening screw 724 are loosened from the screw fixing portion of the rotating body 721 of the paddle roller 725a. Remove. Thereafter, when the rotary main body 721 is divided in the belt drive shaft direction, the paddle roller 725a can be removed from the belt drive shaft 722. By similarly handling the paddle roller 725b, the paddle roller 725b can be detached from the belt drive shaft 722. With this structure, it is possible to easily replace only consumable parts without disassembling the belt drive shaft 722 from the drive main body.

  FIG. 18 is a perspective view showing an exploded example of the paddle roller 725a of the paddle roller unit 37 '.

  In this embodiment, the paddle roller 725a has a structure in which the rotating main body 721 and the fin 704 ′ (rubber part; consumable part) having a double fin structure can be divided. And the fin 704 ′ is detachable from the rotary main body 721.

  For example, the paddle roller 725a shown in FIG. 18 has opening groove portions 715 into which six member slides (at an angle of 60 °) can be inserted. The opening groove 715 is disposed at a position parallel to the belt drive shaft Bc on the outer periphery of the paddle roller 725a.

  Fins 704 'whose roots are convex are slid into the six opening groove portions 715. For example, the fin 704 ′ is press-fitted along the belt drive shaft Bc in a direction orthogonal to the rotation direction. One set of fins 704 'constitutes a consumable part having a double fin structure.

  The fins 704 ′ press-fitted into each of the opening grooves 715 are detachable as a set, so that the fins 704 ′ can be removed by pulling them forward along the belt drive shaft Bc. With this structure, it is possible to easily replace only the fin 704 'without disassembling the drive main body 703' from the belt drive shaft 722 shown in FIG.

  Thus, according to the binding device 100 as the third embodiment, the binder paper alignment unit 30 has the paddle roller unit 37, and the paddle roller unit 37 has a predetermined thickness and a predetermined elasticity. Two or more fins 704 ′ having a multi-fin structure are provided around the rotating main body 701 by overlapping two or more. Based on this assumption, when the predetermined paper 3 'is aligned and temporarily held, the discharge roller 25 conveys the paper 3' to a predetermined position. The binder paper alignment unit 30 aligns and temporarily holds a plurality of sheets 3 ′ conveyed by the discharge roller 25. At this time, the paddle roller unit 37 is configured such that the front end and the side end of the sheet 3 ′ are aligned at the reference position by the fin 704 ′ having a multiple fin structure.

  Therefore, a stable scraping force is ensured as compared with the paddle roller unit 37 in which a plurality of fins 704 ′ are provided around the rotating main body 701 without being affected by the thickness of the stacked sheets 3 ′. can do. Moreover, even if the accumulated number of sheets 3 ′ increases and the total laminated thickness of the sheets increases, the bending repulsive force of the fins 704 ′ does not become so strong, so that buckling of the sheets 3 ′ can be prevented.

  The present invention is extremely suitable when applied to a binder paper aligning unit that aligns and binds recording sheets output from a black-and-white or color copier or printing apparatus.

1 is a conceptual diagram illustrating a configuration example of a binding device 100 to which a paper processing device according to a first embodiment of the invention is applied. (A)-(D) are process drawings which show the function example of the binding apparatus 100. FIG. 3 is a perspective view illustrating a configuration example of a binder paper alignment unit 30. FIG. 3 is a block diagram illustrating a configuration example of a control system of a binder paper alignment unit 30. FIG. FIG. 10 is a side view showing an operation example (at the time of paper entry) of the paper guide pressing mechanism 31. It is a perspective view which shows the structural example of the rotatable guide part 34a, 34b on the paper. FIG. 10 is a side view showing an operation example of the paper guide pressing mechanism 31 (when paper entry is completed). It is a perspective view which shows the structural example of the rotatable guide part 34a, 34b on the paper. It is a side view which shows the structural example of the paper front-end | tip corner | angular_part alignment mechanism 39 in the binding apparatus 100 as a 2nd Example. (A) And (B) is explanatory drawing which shows the function example (paper bundle 3 "is thin) of the fillers 38a and 38b. (A) And (B) is explanatory drawing which shows the example of a function (paper bundle 3 '' is thick) of the fillers 38a and 38b, respectively. It is a perspective view of the example of composition of paddle roller unit 37 in bind device 100 as the 3rd example. 4 is a perspective view showing an example of disassembly of a paddle roller unit 37. FIG. (A) And (B) is a figure which shows the function example of the fin 704. FIG. 4 is a top view showing an example of functions of a paddle roller unit 37. FIG. It is a perspective view which shows the structural example of the paddle roller unit 37 'as another Example. It is a perspective view which shows the example of decomposition | disassembly of the paddle roller unit 37 '. It is a perspective view which shows the disassembled example of the paddle roller 725a of the paddle roller unit 37 '.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Paper conveyance path 11 1st conveyance path 12 2nd conveyance path 15 Flap 20 Punch process part 21 Punch blade
22 motor 23 side jogger (paper posture correction means)
30 Binder paper alignment unit (paper storage unit)
31 Paper Guide Pressing Mechanism 37 Paddle Roller 38 Filler 39 Paper Tip Corner Alignment Mechanism 40 Binding Processing Unit 41 Movement Mechanism 42 Binder Cassette 43 Binding Parts 50 Control Unit 55 CPU (Control Unit)
60 Discharging Unit 61 First Belt Unit 62 Second Belt Unit 81 Clamp Movement Mechanism 100 Binding Device (Paper Processing Device)

Claims (7)

A paper processing device that arranges predetermined papers and temporarily holds them,
Paper transport means for transporting the paper to a predetermined position;
Paper holding means for aligning and temporarily holding the paper conveyed by the paper conveying means,
The paper holding means has a paper guide presser mechanism,
The paper processing device, wherein the paper guide pressing mechanism guides the paper to a predetermined position when the paper enters, and presses the rear end side of the paper after the paper entrance is completed. A punching means for punching two or more binding holes at one end of the paper transported by the paper transporting means;
The paper holding means is
The paper processing apparatus according to claim 1, wherein the holes of the plurality of sheets discharged from the punching unit are aligned and temporarily held. The paper guide presser mechanism is
A paper storage unit for accumulating and temporarily holding the paper;
A guide member for guiding the paper to the paper storage unit;
A presser member that is movably provided at the tip of the guide member and presses the paper;
The sheet processing apparatus according to claim 1, further comprising a driving unit that drives the guide member in a time-sharing manner. The driving means includes
4. The guide member is controlled so that a pressing function by the pressing member is released when the paper enters, and the pressing member functions as a travel guide for guiding the paper to the paper holding unit. The paper processing apparatus according to 1. The driving means includes
After the paper entry is completed, the guide member is closed so that the travel guide function by the presser member is closed, and the presser member functions as a plane contact part for pressing the rear end side of the paper held in the paper holding part. The sheet processing apparatus according to claim 3, wherein the sheet processing apparatus is controlled. The pressing member is
At the time of paper entry, it is configured to be an extended guide in the form of a travel guide formed by the guide member,
The urging member is always urged by the urging member so as to have a traveling guide shape cooperating with the traveling guide shape by the guide member in the released state of the pressing function by the pressing member. The paper processing apparatus as described. The pressing member is
4. The paper processing apparatus according to claim 3, wherein the paper processing apparatus has a structure in which the paper is brought into contact with the paper after completion of paper entry to press the paper with a flat surface.

Images