JP4591432B2 - Paper processing device - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper processing apparatus suitable for being applied to an apparatus for punching or binding a recording paper output from a black-and-white and color copier or printing apparatus.

  Specifically, a drive unit that vertically drives the first coupling member to which the driven roller is rotatably attached and the second coupling member to which the drive roller is rotatably attached is provided, and is interlocked with the vertical movement of the driven roller. The drive roller can also be moved up and down so that the driven roller and the drive roller can be retracted from the paper aligning section when the paper is aligned, and can be transported while the paper bundle is sandwiched between the driven roller and the drive roller when the paper is transported. It is a thing.

  In recent years, black-and-white and color copiers, printing apparatuses, and the like have been used in combination with a paper processing apparatus that performs punching and binding. According to this type of sheet processing apparatus, a recording sheet after image formation is received and punched on the downstream side of the sheet using a punch function. The plurality of sheets after punching are aligned. The binding component is automatically inserted into the punched holes of the aligned multiple sheets. The sheet bundle 3 ″ in which the binding component is inserted (ring-bound) is dropped to the discharge portion by releasing the clamp (see Patent Document 1).

  By the way, there are cases where a plurality of sheets after punching are aligned and then discharged as a bundle of sheets without performing the ring binding process. That is, it is a case where only sheets with punched holes are aligned and dropped into a discharge section in a bundle. This is the case when a booklet is created by binding a bundle of sheets with a string, or when it is filed in a dedicated loose-leaf notebook.

  Even when the paper is discharged in such a bundle of sheets, the paper processing apparatus is provided with a paper holding unit for temporarily holding the paper. The paper storage unit is provided with an alignment pin driving mechanism, and the paper storage unit stacks a plurality of papers that have entered from the paper conveyance path while being aligned. The stacked sheets are aligned so that the end faces and leading ends of the sheets are aligned with the reference position. When one sheet of paper is stacked, the paper is discharged by releasing the pinched state by the clamp moving mechanism.

Japanese Patent Laying-Open No. 2003-320780 (2nd page, FIG. 4)

  However, the sheet processing apparatus according to the conventional example has the following problems when the sheet bundle is discharged as it is.

  i. The conveyance timing of the sheet bundle to the discharge unit depends on the release of the clamp in the clamp moving mechanism that holds the sheet bundle. For this reason, at the same time when the clamp is released, the sheet bundle without the binding parts is separated during the descent, or the sheets are scattered.

  ii. In particular, a sheet bundle in a state of being charged with static electricity has different time for dropping between the surface layer and the middle layer, and jams without being dropped well to the discharge unit.

  Therefore, the present invention has been created in view of the above-described problems, and even in a state in which the sheet bundle is not subjected to the binding process with the binding component, the sheet bundle is not separated and fed out in the state of the sheet bundle. It is an object of the present invention to provide a paper processing apparatus that can be conveyed and discharged.

A sheet processing apparatus according to the present invention is a sheet processing apparatus that conveys a sheet bundle obtained by bundling a plurality of sheets, and has a sheet aligning unit that aligns the positions of the plurality of sheets and temporarily holds them. A binder paper aligning unit, and a feeding and transporting mechanism that is mounted on the binder paper aligning unit and has a driven roller and a driving roller and presses and feeds the leading end of the aligned sheet bundle. A first coupling member that is freely movable up and down with a driven roller rotatably attached thereto, and a first coupling member that is vertically engaged with respect to the vertical movement of the first coupling member and that has a driving roller rotatably attached thereto. and 2 coupling member, a first driving unit for driving the first and second coupling member in a vertical, have a second driving unit for driving the driving roller, a first driving unit, a plurality of sheets Use when aligning paper While evacuating the driven roller and the driving roller from the aligning unit, when conveying a sheet bundle aligned position of the sheet is characterized in that sandwich the sheet bundle between the driven roller and the driving roller.

According to the sheet processing apparatus of the present invention, when a sheet bundle obtained by bundling a plurality of sheets is conveyed, the feeding / conveying mechanism pushes and feeds the leading end of the sheet bundle whose sheets are aligned. It is made like. At this time, in the feeding / conveying mechanism, when the first driving unit bundles a plurality of sheets, the first coupling member to which the driven roller is rotatably attached and the second coupling member to which the driving roller is rotatably attached. Are driven up and down. By this driving, the driving roller can be moved up and down in conjunction with the vertical movement of the driven roller.

Further, when aligning a plurality of sheets, the driven roller and the driving roller are retracted from the sheet aligning unit at the time of aligning the sheets, and at the time of conveying the sheet bundle in which the aligned sheets are conveyed , the second driving unit is operated by the driving roller. drives, it carries while sandwiching the sheet bundle between the driven roller and the driving roller, even in a state that does not bind process the sheet bundle in the binding component, without Keru rose paper bundle, the state of the sheet bundle It becomes possible to carry out and carry out as it is .

According to the paper processing apparatus of the present invention, the drive unit that vertically drives the first coupling member to which the driven roller is rotatably attached and the second coupling member to which the drive roller is rotatably attached is provided. The drive unit retracts the driven roller and the drive roller from the paper aligning unit when aligning the positions of the plurality of sheets, and drives the driven roller and the drive roller when transporting the aligned sheet bundle. And a sheet bundle .

With this configuration, the driving roller can be moved up and down in conjunction with the vertical movement of the driven roller. Therefore, even in a state that does not bind process the sheet bundle in binding Ji parts without Keru rose paper bundle, it becomes possible to feed the conveying and discharging in the state of the sheet bundle.

  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 an embodiment of the present invention is applied.

  A binding device 100 shown in FIG. 1 constitutes an example of a paper processing device, and performs punch processing on recording paper (hereinafter simply referred to as paper 3) output from a copier or printing device, and each hole is punched at a predetermined position. And the sheet bundle 3 ″ obtained by bundling the plurality of sheets 3 ′ is conveyed to the bind processing unit 40. To be made. The bind processing unit 40 performs a binding process with a predetermined binding component (consumable item) 43 and discharges it.

  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 transport rollers 17c and 19a 'decelerates and stops. However, when the flap 15 is switched from the upper position to the lower position, the paper 3 is fed by the transport rollers 19a' and 19a and transported to the transport 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. .

  A punch processing unit 20 is disposed on the downstream side of the conveyance path 12. 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 transport path 11 and punches two or more binding holes (hereinafter referred to as punch holes 3 a) at one end of the paper 3 transported by the transport 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 to correct the posture of the paper 3. For example, the front end of the sheet 3 is in contact with the openable / closable fence 24 evenly. 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 discharge roller 25 is provided on the downstream side of the punch processing unit 20 so as to convey the sheet 3 'after punching the sheet to the next stage unit.

  A binder paper alignment unit 30 is disposed downstream of the punch processing unit 20 so that the positions of the punch holes 3a of a plurality of sheets 3 ′ discharged from the punch processing unit 20 are aligned and temporarily held (accumulated). To be made. 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 is a surface for holding (stacking) the sheets 3 'on which the punch holes 3a are formed. In this example, the relationship between the depression angle θ1 and the depression angle θ2 is set to θ1 <θ2. The depression angle θ1 is set to 0 ° <θ1 <45 °, and the depression angle θ2 is set to 0 ° <θ2 <90 °. 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 curl pressing mechanism 31. The paper curl pressing mechanism 31 is disposed in the vicinity of the paper entrance in the unit 30 and guides the paper 3 ′ to a predetermined position (paper holding unit 32, etc.) of the binder paper alignment unit 30 when the paper enters, and the paper entry is completed. Sometimes the rear end side of the sheet 3 'is pressed (see FIGS. 3 and 4).

  Further, the binder paper alignment unit 30 has a paper front end and end width alignment function. In this example, the unit 30 is provided with a multi-spindle-shaped rotating member (hereinafter referred to as a paddle roller 37). It is made to align the sheet bundle.

  The binder paper alignment unit 30 has a clamp moving mechanism 80. The clamp moving mechanism 80 is configured to move the sheet bundle 3 ″ obtained by stacking the sheets 3 ′ after the sheet punching by the clamp member and move in the sheet conveying 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 43 are set in the binder cassette 42. The binding component 43 is, for example, injection molded, 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 3a are positioned from the binder paper aligning unit 30, and inserts the binding component 43 into the punch holes 3a to execute the binding process (automatic operation). Bookbinding function).

  A discharge unit 60 is disposed on the downstream side of the bind processing unit 40, 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 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 3a 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 ′ on which the binding punch holes 3 a are formed 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 the sheet bundle 3 ″ shown in FIG. 2C, the binding punch holes 3 a are aligned, and the binding processing unit 40 The binding component 43 is inserted into the punch hole 3a in cooperation with each other, whereby a booklet 90 as shown in Fig. 2D through which the binding component 43 is inserted can be obtained.

  FIG. 3 is a perspective view showing a configuration example of the binder paper alignment unit 30 and shows a state where the shutter 83 is opened. FIG. 4 is a perspective view showing a configuration example of the paper curl pressing mechanism 31 and the peripheral mechanism.

  The binder paper aligning unit 30 shown in FIG. 3 aligns and stacks the punch holes 3a of the sheet bundle 3 ″ by bringing a plurality of sheets 3 ′ conveyed by the sheet conveying unit 10 shown in FIG. The binder paper alignment unit 30 includes a paper storage unit 32. The binder paper alignment unit 30 includes a paper curl pressing mechanism 31 in the vicinity of the paper entrance.

  In the paper curl pressing mechanism 31, a pair of curl fences 34 a and 34 b that are rotationally driven at a paper entry position are arranged to face each other at a paper entry allowable interval, and a protrusion 342 is formed on each of the opposed surfaces of the curl fences 34 a and 34 b. A plurality of erections are provided at a predetermined interval at the portion, and the front end side of the sheet 3 ′ is guided between the adjacent protrusions 342 by the curl fences 34a and 34b when the sheet enters, and the protrusions protrude from the lower surface of the sheet 3 ′ when the sheet passes. 342 is retracted, and the rear end side of the sheet 3 ′ is pressed by the next protrusion 342.

  The paper holding unit 32 accumulates and temporarily holds the paper 3 ′ whose rear end is pressed by the paper curl pressing mechanism 31. A sheet bundle conveyance path is formed before and after the sheet carry-out port.

  A shutter 83 constituting an example of a sheet bundle conveyance opening / closing mechanism is provided in the vicinity of the sheet carry-out port of the sheet holding unit 32, and the sheet bundle conveyance path is closed when the sheet bundle is aligned. On the inner side of the shutter 83 (on the paper storage portion 32 side), the clamp member including the movable upper arm 801b and the fixing lower arm 801a of the clamp moving mechanism 80 is opened, and the paper 3 'is bundled in this state. When the paper is carried out, the shutter 83 is opened, and the paper bundle is sandwiched between the upper arm 801b and the lower arm 801a and carried out to the next process.

  The paper curl pressing mechanism 31 shown in FIG. 4 is taken out from the binder paper alignment unit 30 shown in FIG. 3, and includes curl fence parts 34a and 34b, rear guide parts (introduction guides) 304a and 304b (see FIG. 3), and curl. Guide portions (running guides) 305a and 305b are provided.

  Curl fence sections 34a and 34b are provided on the left and right sides of the sheet storage section 32 near the sheet entrance. The curl fence sections 34a and 34b guide the front end side of the sheet 3 ′ guided by the rear guide sections 304a and 304b between the adjacent protrusions 342 by the curl fences 34a and 34b when the sheet enters, and the sheet 3 passes when the sheet passes. The projection 342 is retracted from the lower surface of 'and the rear projection 342 operates to press the rear end side of the sheet 3'.

The left and right curl fence portions 34 a and 34 b are attached to a power transmission shaft (curl fence shaft) 307. One end of the power transmission shaft 307, the motor 301 is mounted via a reduction gear 309. The motor 301 constitutes an example of a drive unit, and rotates the curl fence units 34a and 34b in a predetermined direction.

  The curl fence part 34a includes a disk-shaped rotating main body part 341 and a plurality of protrusions 342. The rotation main body 341 has a shaft portion 341a. A power transmission shaft 307 is attached to the shaft portion 341a. For example, four protrusions 342 are arranged at 90 ° intervals on the circumferential portion of the rotating main body 341. Each protrusion 342 has a shape protruding in a direction parallel to the shaft portion 341a. When the curl fence portion 34a is configured in this manner, the curled paper 3 'can be pressed by the protrusion 342 during temporary holding of the paper alignment.

  For example, the protruding portion 342 circulates upward every time the paper enters, so that a state where the curled portion of the paper 3 'being stacked can be pressed can be maintained. Note that the structure and function of the curl fence part 34b are configured in the same manner as the curl fence part 34a and function in the same manner, and thus description thereof is omitted.

  Rear guide portions 304a and 304b are provided in the vicinity of the left and right curl fence portions 34a and 34b. The rear guide portions 304a and 304b guide the leading end portion of the sheet 3 'entering the binder sheet aligning unit 30 in a predetermined direction.

  The above-described rear guide portions 304a and 304b have a spatula-shaped projecting piece (not shown) and a rotatable structure. With this rotating structure, the sheet 3 ′ can be guided to the position closest to the curl fences 34a and 34b, and even when the curled sheet 3 ′ enters, the curl fences 34a and 34b can be guided. A crash situation can be prevented, and jams caused by this collision can be prevented.

  Curl guide portions 305a and 305b are provided below the power transmission shaft 307 connecting the curl fence portions 34a and 34b. The curl guide portions 305 a and 305 b guide the paper 3 ′ guided by the rear guide portions 304 a and 304 b to the paper storage portion 32. The curl guide portions 305 a and 305 b have a structure that is fixed at a position away from the paper alignment surface of the paper storage portion 32. For example, the curl guide portions 305a and 305b are fixed to a pair of guide support bars 303a and 303b that are passed to the left and right of the sheet entrance.

  An upper guide 310 is attached to the guide support bar 303b to hold the bottom of the sheet 3 'and guide it to the sheet holding unit 32. The curl guide portions 305a and 305b are, for example, injection-molded products made of resin, and the bottom portion has an arcuate R surface when viewed from above. The size is about 20 mm to 30 mm in width and about 60 mm to 80 mm in length. The height is about 8 mm to 10 mm. In this way, when the curled paper 3 'enters, the force that the paper 3' tries to lift can be relaxed, and jamming caused by the entrance of the curled paper 3 'can be prevented.

  The above-described rear guide portion 304a has a cam 311 that is interlocked with the curl fence portion 34a. When the paper entry is completed, the cam 311 is driven to retreat (retreat) from the rotation trajectory of the curl fence portion 34a. For example, the cam 311 of the rear guide part 304a is coupled by followering, and is interlocked with the rotation of the curl fence part 34a. In this way, the curl fence part 34a rotates and the rear guide part 304a also rotates, so that when the paper entry is completed, the curl fence part 34a can be prevented from retracting and interfering with the protrusions.

  In addition, since the rear guide portion 304a can be rotated, a guide can be formed up to the immediate vicinity of the curl fence portion 34a, and jamming can be prevented. In addition, regarding the cam 311 and the follower ring, the curl fence part 34b is configured in the same manner as the curl fence part 34a and functions in the same manner, and thus the description thereof is omitted.

  A side jogger 70 is provided inside the paper exit of the paper storage unit 32 shown in FIG. 3, and when the paper bundle is aligned, the width-adjusting members are pressed from both sides of the paper bundle 3 ″ so that the paper bundle 3 ″. The width of is made uniform. An alignment pin drive mechanism is provided on the downstream side of the side jogger 70, that is, in the vicinity of the sheet carry-out port of the unit main body, and the sheet bundle 3 ′ is rearranged using the punch holes 3a formed in the sheet 3 ′. Made. When the paper is carried out, the width adjusting member in the side jogger 70 is retracted to both sides of the paper bundle 3 ″.

  In addition to the side jogger 70, press rollers 33a and 33b and feeding rollers 38a and 38b (see FIG. 6) are arranged inside the paper exit of the paper storage unit 32, and the paper bundle 3 ″ is discharged to the next process. In doing so, the sheet bundle 3 ″ is pressurized from the front and back.

  A shutter 83 is provided at the paper carry-out port, and operates to open and close the paper bundle conveyance path. For example, when the shutter 83 is opened, the above-described press rollers 33a and 33b and the feeding rollers 38a and 38b convey (discharge) the sheet bundle 3 ″ along the sheet bundle conveyance path. If the paper carry-out roller is configured, even when the paper bundle 3 ″ is not bound by the binding component 43, the paper bundle 3 ″ can be carried out to the next process while maintaining the bundle state.

  FIG. 5 is a perspective view illustrating a configuration example of the side jogger 70 in the binder paper alignment unit 30.

  In this example, the side jogger 70 includes a width alignment reference guide 72a that serves as an end surface reference of the sheet 3 ′ and a width alignment guide 72b that presses the sheets 3 ′ one by one against the width alignment reference guide 72a in the sheet width direction. The two width adjusting reference guides 72a and 72b are both independently driven and are driven independently. The side jogger 70 is arranged so that, for example, the sheets 3 ′ are aligned one by one and pressed to the reference side. As a result, the width of the paper 3 ′ temporarily held in the binder paper alignment unit 30 can be aligned (paper edge alignment processing).

The side jogger 70 shown in FIG. 5 is provided in the binder paper alignment unit 30 shown in FIG. The side jogger 70 includes a main body casing 71, a width alignment reference guide 72a, a width alignment guide 72b, rails 73a and 73b, motors 74a and 74b, and moving stages 75a and 75b.

  The main body casing 71 has an upper surface portion and a back surface portion. The main body casing 71 is formed in a box shape by bending an iron plate. The upper surface portion of the box-shaped body is open. In this example, the back surface portion of the main body casing 71 is a motor attachment region. The upper surface portion is a moving stage region.

In the moving stage area, a width adjusting reference guide 72a, a width adjusting guide 72b, rails 73a and 73b, and moving stages 75a and 75b are arranged. For example, rails 73a and 73b are installed between both wall surfaces inside the main body casing 71 so as to bridge. The rails 73a and 73b are attached so as to fix the two round bars at positions passing through the right and left ends of the main body casing 71. A pair of moving stages 75a and 75b are engaged with the rails 73a and 73b so as to be movable left and right.

  The moving stages 75a and 75b are made of, for example, resin molded parts. The moving stages 75a and 75b are provided with openings (not shown) penetrating left and right, and rails 73a and 73b are provided in the openings. Passed.

A width adjusting reference guide 72a is attached to the upper right end of the moving stage 75a, and a width adjusting guide 72b is attached to the upper left end thereof. As the width alignment reference guide 72a and the width alignment guide 72b, for example, an iron plate bent into a deformed U shape is used. The width alignment reference guide 72a and the width alignment guide 72b are wide on the upstream side and narrow on the downstream side. This is because the curled sheet 3 ′ is guided to the front end of the sheet holding unit 32 with good reproducibility.

The upstream side of the width aligning reference guide 72a and the width aligning guide 72b has a shape (flap) in which the upper end part jumps up for paper guidance, and the lower end part has a shape that hangs in the opposite direction. These shapes are provided to guide the sheet 3 ′ sent from the punch processing unit 20 to the clamp moving mechanism 80 together with the paddle roller 37.

  In addition, motors 74 a and 74 b are attached to the motor attachment region provided in the rear portion of the main body casing 71. Stepping motors are used for the motors 74a and 74b, respectively. In the motors 74 a and 74 b, the motor rotation shafts are provided so as to penetrate from the back surface portion to the top surface portion of the main body housing 71.

  A belt driving pulley (not shown) is attached to the motor rotation shaft of the motor 74a, and a belt driving pulley is also attached to the motor rotation shaft of the motor 74b. A driven pulley 77 a is attached to the upper surface portion side of the main body casing 71. An endless belt 78a is engaged between a belt driving pulley of the motor 74a and a driven pulley 77a. Similarly, the endless belt 78b is engaged between the belt driving pulley and the driven pulley 77b of the motor 74b.

  In this example, only one of the opposing belts 78a and 78b is restrained by the moving stages 75a and 75b. The side jogger 70 is constituted by these members.

  FIG. 6 is a perspective view illustrating a configuration example of the feeding and transporting mechanism 51 mounted on the binder paper alignment unit 30.

  6 is taken out from the binder paper aligning unit 30 shown in FIG. 3, and is configured to press and feed the leading end portion of the sheet bundle 3 ″. The feed and transport mechanism 51 is a binder. It is mounted on the paper aligning unit 30 (paper holding unit). The feeding and conveying mechanism 51 is disposed at the leading end of the paper bundle 3 ″. The feeding / conveying mechanism 51 is arranged at this position in order to feed and convey the sheet bundle 3 ″ as stably as possible.

  The feeding / conveying mechanism 51 includes press rollers 33a and 33b, feeding rollers 38a and 38b, a press roller shaft 52, U / D plates 53a and 53b, rack plates 54a and 54b, press roller guides 55a and 55b, and press roller movement. Motor 58, feeding drive motor 59, and press roller HP sensor 115.

  In this example, a U / D plate 53a for moving a press roller constituting an example of a first coupling member (first link) is attached to the left side of the shaft 52 with screws 501 when viewed from the Y direction in the figure. On the right side, a U / D plate 53b for moving the press roller, which is similarly configured, is attached by a screw 502. By these three members, the feeding / conveying mechanism 51 has a gate (gate) shape. The shaft 52 forms a shaft portion of the press rollers 33a and 33b. For the shaft 52, a metal bar having a predetermined thickness and length is used.

  The U / D plates 53a and 53b are made by bending and punching a metal plate having a predetermined thickness. Long holes are opened at predetermined positions of the U / D plates 53a and 53b.

  Two press rollers 33a and 33b constituting an example of a driven roller are rotatably attached to a predetermined position where the shaft 52 is divided into approximately three equal parts. The press rollers 33a and 33b are made of resin so that the resistance during conveyance of the sheet bundle is reduced. The press rollers 33a and 33b are linked to driving means by a rack and pinion via a coupling mechanism 56 so that the press rollers 33a and 33b move between a retracted position during the paper aligning operation and a paper bundle nipping position during the paper bundle conveyance. ing.

  In this example, a second coupling member (second link) is coupled to the left and right U / D plates 53 a and 53 b via a coupling mechanism 56. The second coupling member includes press-up and down (press U / D) rack plates 54a and 54b. The U / D plate 53a is connected to the rack plate 54a, and the U / D plate 53b is connected to the rack plate 54b. A bearing fixing member 542 is movably engaged with the rack plate 54b. A rotary bearing portion (material) 543 is attached to the bearing fixing member 542. A roller shaft 544 is bridged between the rotary bearing portions 543, and feeding rollers 38a and 38b constituting an example of a driving roller are rotatably attached to the roller shaft 544.

  The feeding rollers 38a and 38b are disposed so as to be positioned below the sheet bundle 3 ″. The feeding rollers 38a and 38b have a frictional force that only conveys the sheet bundle 3 ″, for example, a high level of hard rubber or the like. It is composed of a friction elastic body.

  In this example, the connection mechanism 56 described above has a structure in which the U / D plate 53a and the rack plate 54a, and the U / D plate 53b and the rack plate 54b are slidably connected to each other via an urging member. . For example, concave grooves 545 and 546 (see FIG. 6) for sliding are provided on side surfaces (outer surfaces) that are not opposed to the rack plates 54a and 54b. Both sides in the longitudinal direction of the U / D plate 53a are slidably engaged with the concave groove 545 of the rack plate 54a, and the U / D plate 53b is similarly connected to the concave groove 546 of the rack plate 54b. It is slidably engaged.

  Spring engagement protrusions 511 and 512 (see FIG. 8) are provided at predetermined positions on the sides where the U / D plates 53a and 53b face each other. The protruding portion 511 is inserted into the long hole portion 513 of the rack plate 54a, and the protruding portion 512 is inserted into the long hole portion 514 (see FIG. 8) of the rack plate 54b so that the protruding portions 511 and 512 face each other. . Protrusions 515 and 516 (see FIG. 8) for spring engagement are provided at predetermined positions on the sides where the rack plates 54a and 54b face each other.

  In the coupling mechanism 56, for example, an urging member 56a is attached between the protrusion 511 of the U / D plate 53a and the protrusion 515 of the rack plate 54a. An urging member 56b (see FIG. 8) is attached between the protrusion 512 (see FIG. 8) of the U / D plate 53b and the protrusion 516 of the rack plate 54b. A spring coil spring is used for each of the urging members 56a and 56b, and the U / D plates 53a and 53b are urged in a direction in which the sheet bundle 3 ″ is sandwiched with respect to the rack plates 54a and 54b.

  On the other hand, a press roller moving motor 58 constituting a first drive unit is disposed at a predetermined position of the feeding / conveying mechanism 51 to drive the U / D plates 53a and 53b and the rack plates 54a and 54b up and down. It is made like. The feeding / conveying mechanism 51 has a power shaft 521. A pinion gear 522 is attached to one end of the power shaft 521. A pinion gear (not shown) is attached to the other end of the power shaft 521. A pinion gear (not shown) drives the left rack gear 523.

  A reduction gear 59b is engaged with the motor 58, and the motor speed is reduced based on a predetermined gear ratio. A pinion gear 522 is engaged with the reduction gear 59b. The rack plate 54 b has a rack gear 523. A rack gear 523 is engaged with the pinion gear 522. The rack gear 523 operates to receive a motor rotational force of a predetermined rotational speed reduced by the reduction gear 59b through the pinion gear 522 and to reciprocate (up and down). The rack plates 54a and 54b operate integrally with the left and right rack gears 523.

  If the connection mechanism 56 is configured in this manner, the U / D plates 53a and 53b can be engaged with the rack plates 54a and 54b so as to be movable up and down. In addition, when the sheet bundle 3 ″ is sandwiched between the press rollers 33a and 33b and the feeding rollers 38a and 38b, a pressing force depending on the thickness of the sheet bundle 3 ″ can be generated.

  At another predetermined position of the feeding / conveying mechanism 51, a feeding driving motor 59 constituting the second driving unit is arranged to drive the feeding rollers 38a and 38b. A stepping motor is used as the motor 59. A reduction gear 59a is engaged with the motor 59, and the motor speed is reduced based on a predetermined gear ratio. A gear 531 for driving the feeding roller is engaged with the reduction gear 59a. The feeding rollers 38 a and 38 b are attached to the rotation shaft of the gear 531. As a result, the feeding rollers 38a and 38b can be linked to a motor 59 such as a stepping motor.

  In this example, the rack plate 54b is provided with a long hole portion 541 having an oblique shape (character shape: see FIG. 8) with respect to the hanging direction at a predetermined position. The rectangular shape of the long hole portion 541 is arranged so as to fall down as it moves in the paper transport direction. An end portion of a bearing fixing member 542 (lever) is engaged with the long hole portion 541. The end portion of the bearing fixing member 542 is a rod-shaped end that forms the rotation fulcrum shaft of the rotary bearing portion 543 to which the feeding rollers 38a and 38b are rotatably attached. With this configuration, the rack plates 54a and 54b are lowered, and the feeding rollers 38a and 38b can be projected onto the paper transport path. This is because the end portion of the bearing fixing member 542 traces the square shape of the long hole portion 541.

  On the left side of the above-described press roller 33a, a press roller guide 55a for guiding a sheet, which is an example of a conveyance auxiliary member, is provided. The press roller guide 55a is attached by screws 503 and 504. Similarly, a press roller guide 55b for paper guidance is also provided on the right side of the press roller 33b. The press roller guide 55b is attached by screws 505 and 506. The press roller guides 55a and 55b have a structure that moves up and down simultaneously with the press rollers 33a and 33b that move up and down in conjunction with the up and down movement of the U / D plates 53a and 53b.

  For the press roller guides 55a and 55b, for example, a metal plate having a predetermined thickness is bent and punched into a U shape. When the press roller guides 55a and 55b are configured in this way, the sheet bundle 3 "can be transferred from the side jogger 70 to the press rollers 33a and 33b without cutting the conveyance guide, and the sheet bundle 3" is conveyed. Guide in the direction with good reproducibility.

  In this example, a sensor (hereinafter referred to as a press roller HP sensor or simply referred to as an HP sensor 115) for detecting the home position of the press rollers 33a and 33b constituting an example of the detecting means is provided below the right rack plate 54b. Then, the press conveyance home position of the rack plate 54b is detected and a roller detection signal S15 (position detection information) is output. The feeding drive motor 58 rotates the feeding rollers 38a and 38b based on a roller detection signal S15 obtained from the HP sensor 115 for the press roller. In this way, the conveyance of the sheet bundle 3 ″ can be started when the HP sensor 115 detects the position where the rack plates 54a and 54b are fully pulled by the feeding and conveying mechanism 51.

  7-10 is a front view which shows the operation example (the 1-4) of the delivery conveyance mechanism 51. FIG. 7 to 10 are views seen from the X direction in FIG. FIG. 7 is a front view showing an operation example of the feeding / conveying mechanism 51 when the U / D roller is opened.

  In the feeding / conveying mechanism 51 shown in FIG. 7, when the sheets are aligned, the press roller 33a (33b) and the feeding roller 38a (38b) are opened. This state is obtained when the rack gear 523 rotates the pinion gear 522 counterclockwise by the motor 58 via the reduction gear 59b and raises the rack gear 523 by the pinion gear 522 from the closed state of the feeding / conveying mechanism 51. As a result, the rack gear 523 is fully raised. At this time, the HP sensor 115 for the press roller outputs a roller detection signal S15 indicating that the rack plate 54a is away from the home position HP to the control unit 50. The sheet detection sensor 116 detects the sheet bundle 3 ″ and outputs a sheet detection signal S16 to the control unit 50. For example, the sheet detection sensor 116 outputs a sheet detection signal S16 of a high level (hereinafter referred to as “H” level). .

  FIG. 8 is a front view illustrating an operation example of the feeding / conveying mechanism 51 when the U / D roller is closed.

  In the feeding / conveying mechanism 51 shown in FIG. 8, the press roller 33a (33b) and the feeding roller 38a (38b) are in a closed state during sheet conveyance. This state is obtained from the state shown in FIG. 7 when the rack gear 523 rotates the pinion gear 522 clockwise by the motor 58 via the reduction gear 59b and lowers the rack gear 523 by the pinion gear 522. As a result, the rack gear 523 is lowered and the leading end of the sheet bundle 3 ″ is held. At this time, the HP sensor 115 for the press roller is in a state where the rack plate 54a is present at the home position HP. Is output to the control unit 50. The sheet detection sensor 116 detects the sheet bundle 3 ″ and outputs the sheet detection signal S16 to the control unit 50. For example, the paper detection sensor 116 outputs a low level (hereinafter referred to as “L” level) paper detection signal S16.

  FIG. 9 is a front view illustrating an operation example immediately before the U / D roller is opened when the sheet bundle is conveyed in the feeding and conveying mechanism 51.

In the feeding / conveying mechanism 51 shown in FIG.
The sheet bundle 3 ″ is conveyed in a state in which a and the feeding roller 38a (38b) are closed. In this example, the sheet bundle 3 ″ is conveyed from the left (upstream side) to the right (downstream side). 6 is obtained by rotating the motor 59 shown in FIG. 6 in the clockwise direction and rotating the gear 531 in the counterclockwise direction via the reduction gear 59a. The press roller 33a (33b) and the feeding roller 38a (38b) are closed at the ends, and the sheet bundle 3 ″ is moved to a position immediately before completion of discharge. At this time, the HP sensor for the press roller 115 still detects the home position of the rack plate 54a, and the sheet detection sensor 116 also detects the sheet bundle 3 ″.

  FIG. 10 is a front view showing an operation example after the U / D roller is opened during conveyance of the sheet bundle in the feeding conveyance mechanism 51.

  In the feeding / conveying mechanism 51 shown in FIG. 10, when the paper is discharged, the paper bundle 3 ″ is discharged with the press roller 33a (33b) and the feeding roller 38a (38b) being opened. The rack gear 523 is obtained by rotating the pinion gear 522 counterclockwise by the motor 58 via the reduction gear 59b and raising the rack gear 523 by the pinion gear 522 from the closed state of the transport mechanism 51.

  As a result, the rack gear 523 is fully raised, and the press roller 33a (33b) and the feed roller 38a (38b) are opened and closed from the rear end of the sheet bundle 3 ″ shown in FIG. 6 rotates in the clockwise direction, and the gear 531 rotates in the counterclockwise direction via the motor 59a, so that the sheet bundle 3 ″ moves from the left (upstream side) to the right (downstream side) of the sheet. Is discharged.

  At this time, the HP sensor 115 for the press roller outputs a roller detection signal S15 indicating that the rack plate 54ba is away from the home position HP to the control unit 50. The sheet detection sensor 116 outputs a sheet detection signal S16 indicating that the sheet bundle 3 ″ has been discharged to the control unit 50. For example, the sheet detection sensor 116 outputs an “L” level sheet detection signal S16.

  Next, a configuration example of the control system of the binder paper alignment unit will be described. FIG. 11 is a block diagram illustrating a configuration example of a control system of the binder paper alignment unit 30.

  The motor drive units 35 and 36, the HP sensor 115 for the press roller, the paper detection sensors 116 and 119, the discharge roller drive unit 122, and the motor drive units 180 to 185 are connected to the control unit 50 shown in FIG.

  The sheet detection sensor 119 detects the sheet 3 ′ discharged from the punch processing unit 20 and outputs a sheet detection signal S <b> 19 to the control unit 50. The control unit 50 controls the motor driving units 35 and 36 and the motor driving units 180 to 183 based on the paper detection signal S19. For example, the motor control signal S36 is output to the motor drive unit 36 based on the paper detection signal S19.

  A discharge roller rotating motor 205 is connected to the discharge roller driving unit 122. The discharge roller driving unit 122 receives the motor control signal S22 from the control unit 50, drives the motor 205, and rotates the discharge roller 25. The sheet 3 ′ discharged from the punch processing unit 20 is conveyed by the rotation of the discharge roller 25 and enters the binder sheet aligning unit 30.

  A motor 301 for rotating the curl fence is connected to the motor drive unit 35. The motor drive unit 35 receives the motor control signal S35 from the control unit 50, rotates the motor 301, and drives the curl fence units 34a and 34b.

  A motor 708 for rotating paddle rollers is connected to the motor drive unit 36. The motor drive unit 36 receives the motor control signal S36 from the control unit 50, rotates the motor 708, and drives the paddle roller 37.

  A motor 308 for a clamp movement mechanism is connected to the motor drive unit 180. The motor driving unit 180 receives the motor control signal S80 from the control unit 50, rotates the motor 308, and drives the clamp moving mechanism 80. For example, in the clamp moving mechanism 80, the shutter 83 is opened, and the clamp member holding the sheet bundle 3 ″ is lowered to shift to the next process. Thereafter, the sheet bundle 3 ″ is opened, The clamp member is raised and the shutter 83 is closed.

  A motor 86 for driving the clamp member is connected to the motor drive unit 181. The motor drive unit 181 receives the motor control signal S81 from the control unit 50, rotates the motor 86, and drives clamp members such as the lower arm 801a and the upper arm 801b. When the sheets are aligned, the clamp member is opened. When pinching the sheet bundle 3 ″, the clamp member is closed.

  The motor driving unit 182 is connected to a motor 89 for driving the alignment pins. The motor drive unit 182 receives the motor control signal S82 from the control unit 50, rotates the motor 89, and drives the alignment pins 85a, 85b and the like. At the time of sheet bundle alignment, the alignment pins 85a and 85b are passed through the punch holes 3a of the sheet bundle 3 ″.

  Side motor joggers 74 a and 74 b are connected to the motor drive unit 183. The motor driving unit 183 receives the motor control signal S83 from the control unit 50, rotates the motors 74a and 74b, and drives the side jogger 70. When aligning the sheet bundle, the width alignment reference guide 72a and the width alignment guide 72b of the side jogger 70 align the width direction of the sheet bundle 3 ″. When discharging the sheet bundle, the width alignment reference guide 72a and the width alignment guide 72b is retracted.

  The HP sensor 115 detects the home position of the press rollers 33a and 33b and outputs a roller detection signal S15 to the control unit 50. The home position HP of the press rollers 33a and 33b is a position that is elevated a predetermined distance from the sheet alignment surface. The press rollers 33a and 33b stand by at this position.

  The paper detection sensor 116 detects the paper 3 ′ temporarily held in the paper processing unit 32 and outputs a paper detection signal S <b> 16 to the control unit 50. The control unit 50 controls the motor driving units 184 and 185 based on the roller detection signal S15 and the paper detection signal S16. For example, the control unit 50 outputs a motor control signal S84 to the motor driving unit 184 and outputs a motor control signal S85 to the motor driving unit 185 based on the roller detection signal S15 and the paper detection signal S16 when the sheet bundle is discharged.

  A motor 58 for moving the press roller is connected to the motor driving unit 184. The motor driving unit 184 receives the motor control signal S84 from the control unit 50, rotates the motor 58, and moves the press rollers 33a and 33b so as to move up or down.

  A motor 59 for rotating the feeding roller is connected to the motor driving unit 185. The motor driving unit 185 receives the motor control signal S85 from the control unit 50, rotates the motor 59, and drives the feeding rollers 38a and 38b. At the time of discharging the sheet bundle, the press rollers 33a and 33b and the feeding rollers 38a and 38b are configured to press the sheet bundle 3 ″ from the front and back and send it out to the next process.

  Next, a control example at the time of paper alignment in the binding device 100 will be described. FIG. 12 is a flowchart illustrating a control example of the bind sheet alignment unit 30.

  In this embodiment, the alignment pins 85a and 85b after the alignment of the sheet bundle are retracted, and the sheet bundle 3 "is discharged from the state in which the sheet bundle 3" is clamped by clamps (not shown) arranged on both sides. Take the case as an example. In this example, a case will be described in which the binding component 43 is discharged without being bound to the sheet bundle 3 ″.

  Under these control conditions, a paper discharge operation start command is awaited in step ST1 of the flowchart shown in FIG. At this time, in the feeding / conveying mechanism 51 shown in FIG. 7, the press roller 33a and the feeding roller 38a are opened. The HP sensor 115 for the press roller outputs an “H” level roller detection signal S15 indicating that the rack plate 54a is away from the home position HP to the control unit 50. Further, the sheet detection sensor 116 detects the sheet bundle 3 ″ and outputs, for example, a “H” level sheet detection signal S16 to the control unit 50.

  If there is a start command from the upper control system, the press rollers 33a and 33b are closed in step ST2. At this time, in the feeding / conveying mechanism 51 shown in FIG. 8, the rack roller 523 is moved by the motor 58 through the reduction gear 59b from the state where the press roller 33a (33b) and the feeding roller 38a (38b) are shown in FIG. By rotating 522 clockwise and lowering the rack gear 523 by the pinion gear 522, the closed state is obtained. As a result, the rack gear 523 is fully lowered and the leading end of the sheet bundle 3 ″ is held. At this time, the HP sensor 115 for the press roller sends the roller detection signal S15 of “L” level to the control unit 50. Output to.

  In this example, since the end portions of the bearing fixing member 542 are engaged with the slanted elongated holes 541 of the rack plates 54a and 54b, the rack plates 54a and 54b are lowered and the feeding rollers 38a and 38b are moved. It becomes possible to project on the paper conveyance path.

  Next, in step ST3, the shutter 83 is opened, and in step ST4, the upper arms 801b of the clampers 82a and 82b are opened to predetermined positions. In this example, the upper arm 801b is opened to the fully open position to facilitate the discharge of the sheet bundle 3 ″. At this time, the alignment pins 85a and 85b are retracted to the outside of the sheet bundle conveyance path.

  Thereafter, in step ST5, the feeding roller is rotated. At this time, according to the feeding / conveying mechanism 51 shown in FIG. 9, the sheet bundle 3 ″ is conveyed with the press roller 33a and the feeding roller 38a being closed. In the example shown in FIG. At this time, the motor 59 shown in FIG. 6 rotates in the clockwise direction, and the gear 531 rotates in the counterclockwise direction via the reduction gear 59a.

  Further, the press roller guides 55a and 55b move up and down in conjunction with the vertical movement of the U / D plates 53a and 53b, and guide the sheet bundle 3 ″ in the sheet bundle conveyance direction with good reproducibility without breaking the conveyance guide. As a result, the state immediately before completion of discharging the sheet bundle 3 ″ is obtained. The HP sensor 115 for the press roller still detects the home position of the rack plate 54b. The sheet detection sensor 116 still detects the sheet bundle 3 ″.

  In step ST6, the control unit 50 monitors whether the paper detection sensor 116 is turned off. If the paper detection sensor 116 is turned off, the process proceeds to step ST7. In step ST7, the press rollers 33a and 33b are opened. At this time, in the feeding / conveying mechanism 51 shown in FIG. 10, the sheet bundle 3 ″ is discharged in a state where the press roller 33a and the feeding roller 38a are opened. The rack plate 54b is used as the HP sensor 115 for the press roller. The roller detection signal S15 of “H” level indicating a state away from the position HP is output to the control unit 50. Further, the sheet detection sensor 116 outputs an “L” level sheet detection signal S16 indicating a state in which the sheet bundle 3 ″ is discharged to the control unit 50.

  Thereafter, the process proceeds to step ST8, where the shutter 83 is closed, and then, the process proceeds to step ST9, where the control unit 50 monitors whether or not the sheet detection sensor 116 is kept off. When the sheet detection sensor 116 is kept off, the sheet bundle 3 ″ is fed out and the conveyance process is terminated. In this case, the normal termination process is performed. If the state of being turned on again is maintained after being turned off, the process proceeds to step ST10 and proceeds to the abnormal processing of the sheet bundle 3 ″. In step ST10, for example, an error display process is executed on a display unit (not shown) to display the cause of the error. In this case, it is an abnormal termination process.

  As described above, according to the sheet processing apparatus as the embodiment, when the sheet bundle 3 ″ obtained by bundling a plurality of sheets 3 ′ is conveyed, the feeding and conveying mechanism 51 uses the leading end of the sheet bundle 3 ″. It is made to push and push out. At this time, in the feeding / conveying mechanism 51, when a plurality of sheets 3 'are bundled, the press roller moving motor 58 is provided with rack plates 54a and 54b to which the feeding rollers 38a and 38b are rotatably attached, and the press roller 33a. , 33b are rotatably driven up and down with U / D plates 53a, 53b, which are rotatably mounted. By this driving, the feeding rollers 38a and 38b can be moved up and down in conjunction with the vertical movement of the press rollers 33a and 33b.

  Therefore, when the sheets are aligned, the press rollers 33a and 33b and the feeding rollers 38a and 38b can be retracted from the sheet holding section 32. Further, when the sheets are conveyed, the feeding drive motor 59 drives the feeding rollers 38a and 38b. Therefore, the sheet bundle 3 ″ can be conveyed while being sandwiched between the press rollers 33a and 33b and the feeding rollers 38a and 38b. Thus, even if the sheet bundle 3 ″ is not bound by the binding component, the sheet bundle 3 ″ can be conveyed. 3 ″ can be stably conveyed and discharged in the state of the sheet bundle 3 ″ without being separated.

  In this embodiment, when the press roller moving motor 58 and the rack plates 54a and 54b are driven via the reduction gear 59b, the feeding drive motor 59 and the feeding rollers 38a and 38b are connected via the reduction gear 59a. However, the present invention is not limited to this, and a structure driven by a conveyor belt instead of the reduction gears 59a and 59b may be used.

  The present invention is extremely suitable when applied to a paper processing apparatus that performs punch processing, binding processing, paper bundling processing, and the like on recording paper output from a black-and-white and 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 as an embodiment according to 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. FIG. 6 is a perspective view illustrating a configuration example of a paper curl pressing mechanism 31 and a peripheral mechanism. FIG. 6 is a perspective view showing a configuration example of a side jogger 70 in a binder paper alignment unit 30. FIG. 4 is a perspective view illustrating a configuration example of a feeding and conveying mechanism mounted on a binder paper alignment unit 30. FIG. 10 is a front view showing an operation example (part 1) of the feeding conveyance mechanism 51; FIG. 10 is a front view showing an operation example (No. 2) of the feeding conveyance mechanism 51; FIG. 10 is a front view showing an operation example (No. 3) of the feeding and conveying mechanism 51; FIG. 10 is a front view showing an operation example (No. 4) of the feeding conveyance mechanism 51; 3 is a block diagram illustrating a configuration example of a control system of a binder paper alignment unit 30. FIG. 4 is a flowchart illustrating an example of control of a bind paper alignment unit 30.

Explanation of symbols

10 Paper transport section (paper transport means)
DESCRIPTION OF SYMBOLS 11 1st conveyance path 12 2nd conveyance path 15 Flap 20 Punch process part 21 Punch blade
22, 86, 89 Motor 23, 70 Side jogger (guide member for width adjustment)
30 Binder paper alignment unit (paper holding means)
31 Paper curl pressing mechanism 32 Paper holding part 33a, 33b Press roller (driven roller)
34a, 34b Curl fence part (holding member)
37 Paddle roller 38a, 38b Feeding roller (drive roller)
40 Binding Processing Unit 41 Moving Mechanism 42 Binder Cassette 43 Binding Parts 50 Control Unit 51 Feeding and Conveying Mechanism 53a, 53b U / D Plate (First Binding Member)
54a, 54b Rack plate (second coupling member)
55 Press roller guide (conveyance auxiliary member)
56 coupling mechanism 58 motor (first drive unit)
59 Motor (second drive unit)
60 Discharging Unit 61 First Belt Unit 62 Second Belt Unit 80 Clamp Movement Mechanism 83 Shutter 82a, 82b Clamper (Clamp Member)
85a, 85b Alignment pin 100 Binding device (paper processing device)
115 Feeding press HP sensor (detection means)
801a Lower arm (fixing clamp member)
801b Upper arm (movable clamp member)

Claims (5)

A paper processing device for conveying a paper bundle obtained by bundling a plurality of papers,
A binder paper alignment unit having a paper alignment section that aligns and temporarily holds the positions of the plurality of sheets;
A feeding conveyance mechanism that is mounted on the binder paper alignment unit and includes a driven roller and a drive roller, and presses and feeds the leading end of the sheet bundle aligned .
The feeding and conveying mechanism is
A first coupling member that is movable up and down and to which the driven roller is rotatably attached;
A second coupling member that is engaged with the vertical movement of the first coupling member so as to be movable up and down, and the drive roller is rotatably attached;
A first drive unit for driving the first and second coupling members up and down;
A second drive unit for driving the drive roller;
The first driving unit includes:
The driven roller and the driving roller are retracted from the paper aligning unit when aligning the positions of the plurality of sheets, and the driven roller and the driving roller are used when conveying the aligned sheet bundle. A sheet processing apparatus characterized by sandwiching a sheet bundle . A conveyance assisting member for paper guidance is provided on the shaft portion for the driven roller attached to the first coupling member,
The conveyance auxiliary member is
The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is configured to move up and down simultaneously with the driven roller that moves up and down in conjunction with up and down movement of the first coupling member. A coupling mechanism coupling the first coupling member and the second coupling member;
In the connection mechanism,
The sheet processing apparatus according to claim 1, wherein a biasing member that biases the first coupling member in a direction in which the sheet bundle is sandwiched with respect to the second coupling member is attached. Detecting means for detecting the position of the second coupling member;
The second driving unit includes:
The sheet processing apparatus according to claim 1, wherein the driving roller is rotated based on position detection information obtained from the detection unit. The second coupling member is
Provided with a long hole portion having an oblique shape with respect to the hanging direction at a predetermined position,
The drive roller is engaged with a rotary bearing member;
The rotation bearing member is attached to a rod-shaped body that forms a rotation fulcrum shaft,
The sheet processing apparatus according to claim 1, wherein an end portion of the rod-shaped body is engaged with the elongated hole portion.

Images