WO2015008865A1

WO2015008865A1 - Book-binding device

Info

Publication number: WO2015008865A1
Application number: PCT/JP2014/069241
Authority: WO
Inventors: 博志土屋; 邦昭木村
Original assignee: グラドコジャパン株式会社
Priority date: 2013-07-19
Filing date: 2014-07-18
Publication date: 2015-01-22

Abstract

[Problem] To reliably align and match side curled paper by means of a simple structure, and being able to bind a book from the result as a paper bundle. [Solution] A left-right pair of side fences (801, 802) have a c-shaped cross section for aligning the left-right edges of the paper, and have: a side wall (801a, 802a) that aligns the side surfaces of the ends of the paper; a top wall (801b, 802b) that aligns the top surface of the ends of the paper; and a bottom wall (801c, 802c) that aligns the bottom surface of the ends of the paper. A front-side protrusion (801b1, 802b1) and a back-side protrusion (801b2, 802b2) in the direction of conveyance are formed at one wall of either the top wall or the bottom wall, and a center protrusion (801c1, 802c1) in the direction of conveyance is formed at the other wall of either the top wall or the bottom wall. An alignment groove (803, 804) is formed from the front-side protrusion (801b1, 802b1) and back-side protrusion (801b2, 802b2) of one wall and the center protrusion (801c1, 802c1) of the other wall, and the alignment groove (803, 804) can hold the left and right ends of the paper and guides the ends when the paper is being aligned and matched.

Description

Bookbinding equipment

The present invention relates to a bookbinding apparatus for aligning sheets on which images have been formed to form a sheet bundle and binding the sheet bundle.

Such a bookbinding apparatus includes a sheet that is formed by an image forming unit and an image-formed sheet that is inserted from the outside, and performs post-processing for binding the sheet bundle (Patent Document 1). As the post-processing, for example, a square hole is formed in the sheet bundle, and the ring portion of the comb ring is inserted into the hole to bind the sheet bundle, the sheet bundle is bound, or the sheet is formed without using the staple. There are some which bind with a piece of paper to be bound, and further those which are bound and bound with a cover sheet by applying an adhesive.

JP 2011-207546 A

As described above, in the conventional bookbinding apparatus, the sheets on which the images are formed are aligned to form a sheet bundle, and the sheet bundle is bound and bound, but this sheet is conveyed with an image formed on the image forming apparatus. There may be side curl (toy curl). For this reason, when aligning the left and right sides of the paper with the pair of left and right side fences, the paper is displaced by side curl (toy curl) even when trying to align with the side fence, and it is difficult to align the paper.

The present invention has been made in view of the above points, and provides a bookbinding apparatus capable of reliably aligning and aligning side-curled (toy curled) sheets with a simple structure and binding a sheet as a bundle of sheets. .

In order to solve the above-described problems and achieve the object, the present invention is configured as follows.

The invention described in claim 1 is a bookbinding apparatus that aligns sheets of images formed into a sheet bundle, and binds and binds the sheet bundle.
It has an alignment unit that aligns the paper and aligns it with the paper bundle,
The matching portion is
Including a pair of left and right side fences that align and align both the left and right sides of the conveyed paper,
The pair of left and right side fences have a U-shaped cross section that aligns the left and right ends of the paper,
Side walls that align the sides of the edges of the paper;
An upper wall that aligns the upper surface of the edge of the paper;
A lower wall that aligns the lower surface of the edge of the paper,
On one wall of the upper wall or the lower wall, a front convex portion and a rear convex portion are formed in the transport direction,
On the other wall of the lower wall or the upper wall, a central convex portion is formed in the transport direction,
An alignment groove is formed by the front convex portion and the rear convex portion of the one wall, and the central convex portion of the other wall,
The alignment groove is a bookbinding apparatus characterized in that when the sheets are aligned and aligned, the end of the sheet is guided to hold the left and right ends of the sheet.

According to a second aspect of the present invention, the front convex portion has a guide surface that guides the front end of the paper in the alignment direction and bends toward the other wall.
The rear convex portion has a guide surface that guides the rear end portion of the paper in the alignment direction and bends toward the other wall,
2. The bookbinding apparatus according to claim 1, wherein the central convex portion has a guide surface that guides the central portion of the sheet in the alignment direction and bends toward the other wall.

The invention according to claim 3 is characterized in that the front convex portion, the rear convex portion, and the central convex portion are:
The bookbinding apparatus according to claim 1, wherein each of the bookbinding apparatuses has a surface inclined along the alignment direction.

The invention according to claim 4 is the bookbinding apparatus according to claim 1, wherein the alignment groove has an arc shape when viewed in the alignment direction.

The invention described in claim 5
In the previous stage of the matching part,
The paper conveyance path arranged at the upper position of the device main body,
It comprises a carry-in conveyance path on one side of the apparatus main body, a carry-out conveyance path on the other side of the apparatus main body, and a reverse conveyance path that converts the conveyance front end side of the paper to the conveyance rear end side,
With respect to the carry-in conveyance path, the carry-out conveyance path and the reverse conveyance path are arranged so as to be divergent,
At the branch position, a reversing unit that converts the conveyance leading end side of the sheet sent from the image forming apparatus to the conveyance trailing end side is arranged,
The bookbinding apparatus according to any one of claims 1 to 4, wherein a manual feed cover that allows paper to be manually carried into the reversing portion is provided on an upper portion of the apparatus main body.

The invention described in claim 6
The inversion part is
A reversing switching claw that allows only passage through the carry-in conveyance path;
A switching guide for switching the paper that has passed through the reverse switching claw to the carry-out conveyance path and the reverse conveyance path;
The switching guide is
At the carry-out position, the paper that has passed through the reverse switching claw is guided to the carry-out conveyance path,
6. The sheet according to claim 5, wherein the sheet that has passed through the reversal switching claw at the reversal position is guided to the reversal conveyance path, and the conveyance front end side of the sheet is converted to the conveyance rear end side and is sent to the binding unit. This is a bookbinding device.

The invention described in claim 7
Attach the reverse switching claw to the manual feed cover,
7. The bookbinding apparatus according to claim 5, wherein, when the manual binding is performed, when the manual cover is opened, the reversing switching claw is also opened.

The invention according to claim 8 provides:
The carry-in conveyance path is composed of a carry-in upper guide and a carry-in lower guide,
The bookbinding apparatus according to any one of claims 5 to 7, wherein the carry-in upper guide can be opened integrally with the manual feed cover.

The invention according to claim 9 is:
The carry-out conveyance path is constituted by a carry-out upper guide and a carry-out lower guide,
The bookbinding apparatus according to any one of claims 5 to 7, wherein the carry-out upper guide is openable.

The invention according to claim 10 is:
10. The bookbinding apparatus according to claim 5, wherein a part of the reversing conveyance path is formed by a reversing path cover provided on an upper part of the apparatus main body.

With this configuration, the present invention has the following effects.

According to the first aspect of the present invention, the pair of left and right side fences that align and align the left and right sides of the conveyed paper have a U-shaped cross section that aligns the left and right ends of the paper, and one of the upper wall and the lower wall. A front convex portion and a rear convex portion are formed in the conveying direction on the wall, and a central convex portion is formed in the conveying direction on the other wall of the lower wall or the upper wall. The alignment groove formed by the rear convex portion and the central convex portion of the other wall guides the edge of the paper when aligning and aligning the paper so that the left and right edges of the paper can be held. The curled (toy curled) paper can be bent and aligned in the alignment direction, and the paper can be prevented from shifting when aligned by the side fence, and the paper can be aligned and aligned reliably with a simple structure.

In the invention according to claim 2, the front convex portion has a guide surface that guides the front end portion of the sheet in the alignment direction and bends toward the other wall, and the rear convex portion is the rear end portion of the sheet. The guide has a guide surface that guides the paper in the alignment direction and bends toward the other wall, and the central convex portion has a guide surface that guides the central portion of the paper in the alignment direction and bends in the other wall direction. When aligning the sheets, the sheets are bent so that they are stiff in the alignment direction. When aligning with the side fences, it is possible to reliably prevent the sheets from shifting.

In the invention according to claim 3, the front convex portion, the rear convex portion, and the central convex portion each have a surface inclined along the alignment direction, so that the paper can be smoothly aligned along the alignment direction when aligning with the paper. Can be guided and aligned.

In the invention according to claim 4, the alignment groove has an arc shape when viewed in the alignment direction, and the alignment direction in which the edge of the side curled (toy curled) paper is bent into an arc shape by the alignment groove and thereby aligned with the paper. Therefore, it is possible to reliably prevent misalignment of the paper when aligning with the side fence.

In the invention according to claim 5, the sheet conveyance path disposed at the upper position of the apparatus main body in the previous stage of the aligning section includes a carry-in conveyance path on one side of the apparatus main body, and a carry-out conveyance path on the other side of the apparatus main body. The reversal conveyance path that converts the paper conveyance leading end side to the conveyance rear end side, and the carry-out conveyance path and the reversal conveyance path are arranged to be divergent with respect to the carry-in conveyance path, and the image forming apparatus is provided at the branch position. By placing a reversing unit that converts the leading end side of the paper sent from the paper to the trailing end side, and providing a manual feed cover on the reversing unit that allows paper to be manually fed into the top of the device body, When manually feeding, the manual feed cover can be opened and the paper can be manually fed to the reversing portion, and bookbinding can be easily performed. In addition, the carry-out conveyance path and the reverse conveyance path are arranged to be branched with respect to the carry-in conveyance path, and a reversing unit that converts the conveyance leading end side of the paper sent from the image forming apparatus to the conveyance trailing end side is arranged at the branch position. Since the reversing unit is used to manually carry in the paper, it is not necessary to provide a special manual feed path, and the structure is simple and compact.

In the invention according to claim 6, the switching guide guides the paper that has passed the reverse switching claw at the carry-out position to the carry-out conveyance path, and guides the paper that has passed the reverse switching claw at the reverse position to the reverse conveyance path. The sheet conveyance front end side is converted to the conveyance rear end side and sent to the binding unit, and the conveyance can be reliably performed by switching between the carry-out conveyance path and the reverse conveyance path using the switching guide and the reverse switching claw.

According to the seventh aspect of the present invention, at the time of manual binding, when the manual cover is opened, the reversing switching claw is also opened, and the reversing switching claw located at the reversing portion is retracted to secure a manual feeding space, so that the paper is smoothly fed. Can be manually inserted.

In the invention according to claim 8, the carry-in conveyance path is constituted by a carry-in upper guide and a carry-in lower guide, and the carry-in upper guide can be opened integrally with the manual feed cover and is clogged in the carry-in conveyance path. The paper can be easily removed.

In the invention according to claim 9, the carry-out conveyance path is constituted by a carry-out upper guide and a carry-out lower guide, and the carry-out upper guide can be opened to easily remove paper clogged in the carry-out conveyance path. be able to.

In the invention according to claim 10, by forming a part of the reverse conveyance path by the reverse path cover provided on the upper part of the apparatus main body, it is possible to secure the reverse conveyance path without increasing the size of the apparatus main body. it can.

It is a figure which shows schematic structure of a bookbinding apparatus. It is a figure which shows the inversion part of a paper. It is a figure which shows bypass conveyance. It is a figure which shows bookbinding conveyance. It is a figure which shows manual feed binding. FIG. 10 is a diagram illustrating a paper jam processing on the paper input side. FIG. 10 is a diagram illustrating a paper jam processing on the bypass side. It is a perspective view which shows the structure of a binding hole formation part. It is a figure which shows the drive of a binding hole formation part. It is a figure which shows the action | operation of the stopper and punch of a binding hole formation part. It is a figure which shows the state which receives a paper in a matching part. FIG. 6 is a diagram illustrating a state in which sheets are aligned in an alignment unit. It is a perspective view which shows a left-right paired side fence. It is a perspective view in the state where a part of side fence was fractured. It is a perspective view showing a pair of left and right side fences upside down. It is the figure which looked at the side fence in the alignment direction. It is a figure which shows the state which aligns the paper of a pair of left and right side fences. It is sectional drawing of the state which aligns the paper of a pair of left and right side fences. FIG. 6 is a perspective view illustrating a state where a bundle of sheets is bound and bound. It is a figure which shows a comb-shaped ring. It is a figure which shows the paper in which the binding hole was formed. It is a figure explaining the operation | movement which arranges the paper of a compilation part. It is a figure which shows the state of the comb-shaped ring receiving position of a binding part. It is a figure which shows the state of the sheet | seat bundle receiving position of a binding part. It is a top view of a binding part. It is a front view of a binding part. It is a figure which shows the structure of the cam mechanism which opens the ring part of a comb-shaped ring. It is a figure which shows the action | operation which opens the ring part of a comb-shaped ring. It is a figure which shows a comb-shaped ring supply part. 1 is a schematic configuration diagram of an image forming apparatus assembled with a sheet post-processing apparatus main body. FIG. 3 is a perspective view of the image forming apparatus before assembling the sheet post-processing apparatus main body. 1 is a perspective view of an image forming apparatus assembled with a sheet post-processing apparatus main body. FIG. 6 is a diagram illustrating a case where a large-size sheet is taken out. FIG. 6 is a diagram illustrating a case where a small-size sheet is taken out. It is a figure which shows embodiment of the paper stacking apparatus by the sub tray of manual operation. It is a figure which shows embodiment of the paper stacking apparatus by the sub tray of automatic operation. It is a top view which shows discharge by the paper extraction position variable means of 2nd Embodiment. FIG. 6 is a front view illustrating a configuration of a sheet take-out position variable unit. It is a side view which shows the attachment structure of a discharge roller.

(Embodiment of bookbinding apparatus)
Embodiments of the bookbinding apparatus according to the present invention will be described below. The embodiment of the present invention shows the most preferable mode of the present invention, and the present invention is not limited to this.

A bookbinding apparatus according to this embodiment will be described with reference to FIGS. 1 is a diagram illustrating a schematic configuration of a bookbinding apparatus, FIG. 2 is a diagram illustrating a sheet reversing unit, FIG. 3 is a diagram illustrating bypass conveyance, FIG. 4 is a diagram illustrating bookbinding conveyance, and FIG. 5 is a diagram illustrating manual binding. FIG. 6 is a diagram showing the paper jam processing on the input side, FIG. 7 is a diagram showing the paper jam processing on the bypass side, FIG. 8 is a perspective view showing the configuration of the binding hole forming unit, and FIG. 9 is the binding hole forming unit. FIG. 10 is a diagram illustrating the operation of the stopper and punch of the binding hole forming unit, FIG. 11 is a diagram illustrating a state in which a sheet is received in the alignment unit, and FIG. 12 is a diagram illustrating a state in which the sheet is aligned in the alignment unit. 13 is a perspective view showing a pair of left and right side fences, FIG. 14 is a perspective view showing a state in which a part of the side fences is broken, and FIG. 15 is a perspective view showing the pair of left and right side fences upside down. Is a view of the side fence as viewed in the alignment direction, and FIG. FIG. 18 is a cross-sectional view of a state in which the sheets of the left and right side fences are aligned, FIG. 19 is a perspective view of a state in which sheets are bound and bound, and FIG. 20 illustrates a comb-shaped ring. FIG. 21, FIG. 21 is a diagram showing a sheet having a binding hole formed therein, FIG. 22 is a diagram for explaining the operation of aligning the sheets in the compiling unit, FIG. 23 is a diagram showing the state of the comb-shaped ring receiving position of the bind unit, and FIG. FIG. 25 is a plan view of the binding unit, FIG. 26 is a front view of the binding unit, and FIG. 27 is a diagram showing the configuration of a cam mechanism that opens the ring unit of the comb-shaped ring. 28 is a view showing the operation of opening the ring portion of the comb-shaped ring, and FIG. 29 is a view showing the comb-shaped ring supply portion.

The bookbinding apparatus 10 according to this embodiment includes a sheet conveyance path 20, a binding hole forming unit 30, a compiling unit 40, a binding unit 50, a comb-shaped ring supply unit 60, a bookbinding discharge unit 70, and a storage stacker 80. As shown in FIG. 11, the ring portion 200a of the comb-shaped ring 200 is inserted into the binding hole 100a formed on the sheet of the sheet bundle 100, and the sheet bundle 100 is bound and bound. As shown in FIG. 12, in the comb-shaped ring 200, a ring portion 200a is integrally formed with resin at a predetermined interval in the axial direction, and the ring portion 200a can be opened and closed by a notch 200b formed in a base portion.

[Configuration of paper transport path]
This paper transport path 20 is provided with a binding hole forming section 30, a compiling section 40, a binding section 50, and a bookbinding discharge section 70 in this order, on the left side of the paper transport path disposed above the apparatus main body. The carry-in conveyance path A is composed of a carry-in upper guide 29a1 and a carry-in lower guide 29a2, and a carry roller 21 is disposed in the carry-in carry path A. The carry-out lower guide 29c2 is configured, and the carry roller 22 is disposed in the carry-out carry path B. The conveyance roller 21 is driven by a roller driving unit 23 via a conveyance driving belt 23a, and the conveyance roller 22 is driven by a roller driving unit 24 via a conveyance driving belt 24a. It can be brought in from. Between the left conveyance roller 21 and the right conveyance roller 22, a reversal switching claw 25, a reversing roller 26, and a switching guide 27 constituting the reversing unit D are arranged. A reversing path cover 29d constituting a part of the reversing conveyance path C is formed on the upper part of the apparatus main body. Thus, a part of the reverse conveyance path C is formed by the reverse path cover 29d provided on the upper part of the apparatus main body, and the reverse conveyance path C can be secured without increasing the size of the apparatus main body.

The reversal switching claw 25 has a conveyance guide portion 25g in the center and is urged in a closing direction by a spring 25a, and is a position indicated by a solid line in FIG. 2, and is pushed by the conveyance force of the sheet when passing the sheet. Is opened at a position indicated by a two-dot chain line, and when the sheet passes, it closes to determine the direction of the trailing edge of the sheet. The reversing roller 26 is driven by a reversing roller driving motor 26a via a driving belt 26b to convey the paper in the forward and reverse directions. The switching guide 27 has a conveyance path 27f inside, and is provided on the one-way shaft 27a. The one-way shaft 27a rotates in conjunction with the transport roller 22 via the switching drive belt 27b.

During bypass conveyance, as shown in FIG. 3, the conveyance drive belt 24a rotates forward, and during this normal rotation, the conveyance roller 22 rotates. The switching guide 27 can be rotated in the clockwise direction by the one-way clutch of the one-way shaft 27a in conjunction with the conveying roller 22 and the switching guide 27 pulled by the spring 27c rotates in the bypass conveying direction. . The sheet transported by the transport roller 21 is transported while the leading end of the sheet is pressing the transport guide part 25g of the reversal switching claw 25, and further, bypassed by the transport roller 22 through the transport path 27f of the switching guide 27.

At the time of bookbinding conveyance, as shown in FIG. 4, the conveyance driving belt 24a is rotated in the reverse direction, the switching guide 27 is rotated, and stopped at a predetermined position. The paper transported by the transport roller 21 is transported while the front end of the paper presses the transport guide portion 25g of the reverse switching claw 25, and is further fed by the switching guide 27 in the direction of the reverse path cover 29d to rotate the reverse roller 26 forward. Then, it is rotated in the reverse direction and then bound.

The reverse switching claw 25 is supported by the manual feed cover 28, and when manually binding, as shown in FIG. 5, when only the manual feed cover 28 is opened, the reverse switching claw 25 is also opened. In this state, the sheet is manually fed and conveyed.

In addition, as shown in FIG. 6, the paper jam processing on the paper entry side is performed by opening the carry-in upper guide 29a1 integrally with the manual feed cover 28. The paper jam processing on the bypass side is performed by opening the top cover 29b and then opening the carry-out upper guide 29c1.

Thus, in the front stage of the binding unit 50, the paper conveyance path 20 disposed at the upper position of the apparatus main body is divided into a carry-in conveyance path A on one side of the apparatus main body, and a carry-out conveyance path B on the other side of the apparatus main body. The reversal conveyance path C that converts the conveyance front end side of the paper to the conveyance rear end side is arranged so that the carry-out conveyance path B and the reverse conveyance path C can be branched with respect to the carry-in conveyance path A. A reversing part D for converting the leading end side of the sheet sent from the image forming apparatus to the trailing end side of the sheet is disposed, and a manual feed cover 28 is provided at the upper part of the apparatus main body so that the sheet can be manually fed into the reversing part D. ing. When the paper is manually fed, the manual cover 28 can be opened and the paper can be manually fed to the reversing portion D, and bookbinding can be easily performed. Also, the carry-out conveyance path A and the reverse conveyance path C are arranged so as to be divergent with respect to the carry-in conveyance path A, and the reversal is performed so that the conveyance leading end side of the paper sent from the image forming apparatus is converted to the conveyance rear end side at the branch position. The part D is arranged, and by using the reversing part D, paper can be manually carried in, so that it is not necessary to provide a special manual feed path, and the structure is simple and compact. Manual paper feed is used when manually feeding papers that have been imaged by different image forming apparatuses, and binding the papers into a bundle of sheets for binding. In this case, it is also possible to use a book prepared as a back cover and a front cover by mixing sheets prepared by different printing apparatuses.

The reversing unit D that manually feeds the paper includes a reversal switching claw 25 that allows only the passage through the carry-in conveyance path A, and a switching that switches the paper that has passed through the reversal switching claw 25 to the carry-out conveyance path B and the reverse conveyance path C. The switching guide 27 has a guide 27. The switching guide 27 guides the paper that has passed through the reverse switching claw 25 at the carry-out position to the carry-out conveyance path C, and the paper that has passed through the reverse switching claw 25 at the reverse position. In this configuration, the leading end side of the sheet is converted to the trailing end side of the sheet and is sent to the binding unit 50 via the binding hole forming unit 30 and the compiling unit 40. The switching guide 27 and the reverse switching claw are used to securely It is possible to carry out the transfer by switching between the carry-out conveyance path and the reverse conveyance path.

The reversal switching claw 25 is attached to the manual feed cover 28. At the time of manual binding, the reversal switching claw 25 is also opened when the manual cover 28 is opened, and the reversal switching claw 25 located in the reversing portion D is retracted. In addition, a sufficient manual space is ensured in the reversing portion D, and the reversing switching claw 25 can smoothly feed the paper without being an obstacle.

Further, the carry-in conveyance path A is constituted by a carry-in upper guide 29a1 and a carry-in lower guide 29a2, and the carry-in upper guide 29a1 can be opened integrally with the manual feed cover 28, and paper is clogged in the carry-in conveyance path A. Then, the carry-in upper guide 29a1 is opened integrally with the manual feed cover 28, and the clogged paper can be easily removed.

Further, the carry-out conveyance path B is composed of a carry-out upper guide 29c1 and a carry-out lower guide 29c2, and the carry-out upper guide 29c1 can be opened. When the paper is clogged in the carry-out conveyance path B, the carry-out upper guide 29c1 By opening it, the clogged paper can be easily removed.

[Configuration of binding hole forming section]
A punch unit 31 is disposed in the binding hole forming unit 30 of this embodiment and is driven by a drive mechanism 32. An upstream upper paper discharge roller 33a and an upstream lower paper discharge roller 33b are disposed above the punch unit 31, and a downstream paper discharge roller pair 34 is disposed below the punch unit 31, and a drive belt 35a is driven by a drive motor 35. Then, the upstream lower discharge roller 33b and the downstream discharge roller pair 34 are driven.

The roller shaft 33c of the upstream lower paper discharge roller 33b is provided with a gear 36, which meshes with a gear 37b provided on the paddle shaft 37a and rotates the paddle shaft 37a in conjunction with the gear 36b. A paddle 37 is provided on the paddle shaft 37 a, and the sheets are aligned by the paddle 37. Further, the upstream upper discharge roller 33a is driven by the paddle shaft 37a via the conveying round belt 37c. The upstream upper paper discharge roller 33a rotates around the paddle shaft 37a, contacts the upstream lower paper discharge roller 33b, and conveys the paper.

In the punch unit 31, a stopper 38 and a punch 39 are arranged. With the upstream upper paper discharge roller 33a separated from the upstream lower paper discharge roller 33b, the leading edge of the conveyed paper is brought into contact with the stopper 38, and a predetermined number of sheets are aligned while rotating the paddle 37, and the punch 39, a binding hole 100a is formed in the binding portion of the sheet, as shown in FIG. After that, the paddle shaft 37a is rotated as a fulcrum, the upstream upper paper discharge roller 33a is brought into contact with the upstream lower paper discharge roller 33b, and the sheet bundle in which the binding hole 100a is formed is connected to the upstream upper paper discharge roller 33a and the upstream lower roller. The paper is conveyed by driving the paper discharge roller 33 b and the downstream paper discharge roller pair 34, and is sent to the compiling unit 40.

Next, the configuration of the binding hole forming portion will be described in detail with reference to FIGS. The binding hole forming unit 30 of this embodiment includes a stopper 38 that stacks and aligns sheets to form a binding hole, a punch 39 that forms binding holes in the stacked and aligned sheets, and a stopper 38 and punch 39. And an interlocking mechanism 310 that operates so as to form a binding hole with the punch 39 on the sheets stacked and aligned by the stopper 38.

The drive mechanism 32 includes a single drive source 320 that drives the interlocking mechanism 310, and the drive source 320 is a motor 321. The drive mechanism 32 of the interlocking mechanism 310 can have a simple structure.

The interlocking mechanism 310 includes a pair of links 311 for moving the stopper 38 between the position P11 and the standby position P12, and a pair of cams 312 for moving the punch 39 between the standby position P21 and the position P22 for forming the binding hole. Have. The pair of cams 312 is fixed to both ends of the rotating shaft 313 so as to be integrally rotatable, and a driving sprocket 314 is fixed to the rotating shaft 313. A speed reduction mechanism 315 and power transmission means 316 are provided between the motor 321 and the drive sprocket 314, and the motor 321 interlocks the rotating shaft 313 of the cam 312. The pair of cams 312 is provided with a drive pin 317 at a position shifted from the rotation axis, and one end 311a of the link 311 is rotatably connected to the drive pin 317. The other end 311 b of the link 311 is rotatably connected to the support pin 318 of the stopper 38. The pair of cams 312 actuate the punch 39 via the punch drive plate 319a, and the punch 39 is always urged toward the standby position by a spring 319b constituting an urging means. The punch driving plate 319a and the punch 39 are assembled together to form a unit.

The binding hole forming unit 30 of this embodiment is provided with an upstream upper paper discharge roller 33a and an upstream lower paper discharge roller 33b for discharging the sheet bundle in which the binding holes are formed. A reference position detection sensor S1 for detecting the sheet, a sheet passage detection sensor S2 for detecting the sheet supplied to the binding hole forming unit 30, and a sheet bundle for detecting the discharge of the sheet bundle in which the binding hole is formed from the binding hole forming unit 30 A discharge management sensor S3 and a rotation management sensor S4 that controls the rotation of the motor 321 are provided. Based on the detection information of the reference position detection sensor S1, the sheet passage detection sensor S2, and the sheet bundle discharge detection sensor S3, the control means 55 includes: Drive control of the motor 321 and drive control of the upstream upper paper discharge roller 33a and the upstream lower paper discharge roller 33b are performed.

Next, the operation of forming the binding hole in the sheet bundle by the interlocking mechanism 310 will be described with reference to FIGS. FIG. 10A shows the home state, where the reference position detection sensor S1 detects the rotation reference position, and at the reference position of the cam 312, the upstream upper discharge roller 33a and the upstream lower discharge roller 33b can pass the sheet. Wait in a safe state. In this home state, the stopper 38 is at the standby position P12 and the punch 39 is at the standby position P21.

FIG. 10B shows the start of work. The motor 321 is started to drive at the reference position of the cam 312. The cam 312 is rotated by the start of driving of the motor 321, and the link 311 is maintained while maintaining the punch 39 at the standby position P21. It moves to the position P11 where the stoppers 38 are aligned.

FIG. 10C shows the paper stacking, and the punch 39 shown in FIG. 10B feeds the paper one by one at the standby position P21 and the position P11 where the stopper 38 is aligned, so that the leading edge of the paper comes into contact with the stopper 38. (FIG. 9A).

FIG. 10D shows the start of the punching operation. After the sheets are stacked to form the binding holes at the position P11 where the stoppers 38 are aligned, the passage of the final sheet is detected by the sheet passing detection sensor S2, and the motor is aligned. 321 is driven. By driving the motor 321, the cam 312 operates the punch 39 via the punch drive plate 319a, and the punch 38 moves to the position P22 where the binding hole is formed, thereby forming the binding hole (FIGS. 9B and 9C). )).

FIG. 10E shows the punch return, and the cam 312 is rotated by driving the motor 321, the stopper 38 is moved to the standby position P12, the punch 39 is moved to the standby position P21, and the reference position detection sensor S1 is the rotation reference. When the position is detected, the driving of the motor 321 is stopped.

FIG. 10 (f) shows sheet discharge, and the sheet bundle having the binding holes formed therein is discharged by driving the upstream upper discharge roller 33a and the upstream lower discharge roller 33b (FIG. 9 (d)).

FIG. 10G shows the completion of paper discharge. After detecting the discharge of the paper bundle by the paper bundle discharge detection sensor S3, the cam 312 is rotated by driving the motor 321, and the motor 321 is repeatedly operated at the reference position of the cam 312. Driving is started (FIGS. 10A and 10B).

As described above, in the binding hole forming unit 30, at the position P11 where the stopper 38 is aligned by the interlocking mechanism 310, the punch 39 is set to the standby position P21, and after the punch 39 moves to the position P22 where the binding hole is formed, the standby position P21. Since the stopper 38 is moved so as to move to the standby position P12 at the same time as returning to step S12, it is not necessary to provide a mechanism for operating the stopper 38 and a mechanism for operating the punch 39 independently, and the paper has a simple and compact structure. A binding hole can be formed in a bundle, and a large number of sheets copied by connecting to an image forming apparatus can be bound and bound in a short time.

Also, by providing a single drive source for driving the interlocking mechanism 310, the drive mechanism can be made a simple structure. Further, the interlocking mechanism 310 connects the cam 312 and the link 311 at a position displaced with respect to the rotation shaft 313 of the cam 312. At the position P11 where the stopper 38 is aligned, the punch 39 is the standby position P21. After moving to the position P22 for forming the binding hole, the stopper 38 is operated to move to the standby position P12 at the same time as returning to the standby position P21, thereby forming the binding hole in the sheet bundle by the simple interlocking mechanism 310. be able to.

The drive source is a motor 321, and the power of the motor 321 is transmitted to the rotating shaft 313 of the cam 312 of the interlocking mechanism 310, and detection information of the reference position detection sensor S 1, the sheet passage detection sensor S 2, and the sheet bundle discharge detection sensor S 3. By performing the drive control of the motor 321 and the drive control of the upstream upper discharge roller 33a and the upstream lower discharge roller 33b based on the above, it is possible to form a binding hole in the sheet bundle with a simple and compact structure. .

(Alignment section)
In this embodiment, an alignment unit 800 is provided in front of the binding hole forming unit 30, and the configuration of the alignment unit 800 will be described in detail with reference to FIGS. The alignment unit 800 is configured to align the sheets P and align with the sheet bundle, and includes a pair of left and

right side fences

801 and 802 that align and align the left and right sides of the conveyed sheet P, and the pair of left and right side fences.

Reference numerals

801 and 802 are U-shaped cross sections that align the left and right end portions P1 and P2 of the paper P.

The pair of left and

right side fences

801 and 802 includes

side walls

801a and 802a that align the side surfaces of the end portions P1 and P2 of the paper P,

upper walls

801b and 802b that align the upper surfaces of the end portions P1 and P2 of the paper P, and the

paper Lower walls

801c and 802c for aligning the lower surfaces of the end portions P1 and P2 of P. On the

upper walls

801b and 802b, front convex portions 801b1 and 802b1 and rear convex portions 801b2 and 802b2 are formed in the transport direction, and on the

lower walls

801c and 802c, central convex portions 801c1 and 802c1 are formed in the transport direction. Yes. The present invention is not limited to this embodiment, and the front and rear convex portions may be formed in the conveying direction on the

lower walls

801c and 802c, and the central convex portion may be formed in the conveying direction on the

upper walls

801b and 802b. .

The front convex portions 801b1 and 802b1 have guide surfaces 801b11 and 802b11 and guide surfaces 801b12 and 802b12 that guide the front end portions P1 and P2 of the paper P in the alignment direction and bend toward the other wall, and the rear convex portions 801b2 , 802b2 have guide surfaces 801b21, 802b21 and guide surfaces 801b22, 802b22 that guide the rear end portions P1, P2 of the paper P in the alignment direction and bend in the direction of the other wall. The central convex portions 801c1 and 802c1 have guide surfaces 801c11 and 802c11 and guide surfaces 801c12 and 802c12 that guide the central portion P3 of the paper P in the alignment direction and bend in the direction of the other wall.

The front convex portions 801b1 and 802b1 have surfaces 801b13 and 802b13 that are inclined along the alignment direction, and the rear convex portions 801b2 and 802b2 have surfaces 801b23 and 802b23 that are inclined along the alignment direction. The convex portions 801c1 and 802c1 have surfaces 801c13 and 802c13 that are inclined along the alignment direction, so that the paper can be smoothly guided and aligned along the alignment direction when aligning with the paper.

Alignment grooves

803 and 804 are formed by the front convex portions 801b1 and 802b1, the rear convex portions 801b2 and 802b2, and the central convex portions 801c1 and 802c1. The

alignment grooves

803 and 804 are arcuate when viewed in the alignment direction, and when aligning the sheets P, the end portions P1 and P2 of the sheet P are guided and the left and right ends P1 and P2 of the sheet P are aligned with the alignment grooves. 803, 804 can be held inside.

As shown in FIG. 11, the pair of left and

right side fences

801 and 802 has a U-shaped cross section for aligning the left and right end portions P1 and P2 of the paper P. The

side fences

801 and 802 receive the paper P conveyed in a state of being opened to the left and right, and as shown in FIG. 12, the pair of left and

right side fences

801 and 802 are closed, and the left and right sides of the conveyed paper P are aligned and aligned. To do.

When the pair of left and

right side fences

801 and 802 are closed and the left and right sides of the sheet P to be conveyed are aligned and aligned, the left and right ends P1 and P2 of the sheet P may be side-curled (toy curled). As shown in FIGS. 17 and 18, the left and right end portions P1 and P2 of the paper P are guided in the alignment direction by the front convex portions 801b1 and 802b1, the rear convex portions 801b2 and 802b2, and the central convex portions 801c1 and 802c1. At the same time, it is bent into an arc shape and enters the

alignment grooves

803 and 804.

The

alignment grooves

803 and 804 are arcuate when viewed in the alignment direction, and when aligning the sheets P, the end portions P1 and P2 of the sheet P are guided and the left and right ends P1 and P2 of the sheet P are aligned with the alignment grooves. It can be held inside 803 and 804, and the ends P1 and P2 of the side-curled (toy-curled) paper P are bent in an arc shape, so that it can sit in the alignment direction aligned with the paper P, and a pair of left and

right side fences

801 and 801 When aligning at 802, the deviation of the paper P can be reliably prevented. In this way, the alignment direction aligning with the side-curled (toy-curled) paper P is stiffened, the paper is prevented from shifting when aligned with the pair of left and

right side fences

801, 802, and the paper P is reliably secured with a simple structure. The aligned paper P can be aligned and aligned, and the aligned paper P is fed to the binding hole forming unit 30 by the feeding mechanism 850.

[Configuration of compilation section]
The compiling unit 40 includes a front jogger 41, a rear jogger 42, an end fence 43, and a paddle unit 44, as shown in FIGS. In the paddle unit 44, a paddle 440 is provided on a rotating shaft 441, and a belt 444 is stretched between a pulley 442 and a driving pulley 443 of the rotating shaft 441. The driving pulley 443 is configured by a speed reduction mechanism and a driving motor. The sheet is rotated by the driving unit 445 and the sheets sent to the compiling unit 40 are aligned by the paddle 440.

When the paper is conveyed to the compiling unit 40, the front jogger 41 and the rear jogger 42 are in the standby position (FIG. 22A), and the paper is stored in the compiling unit 40 and supported by the end fence 43. The process moves to (FIG. 22B) and performs an alignment operation. By repeating this operation, a predetermined number of sheets are aligned and moved to the binding position (FIG. 22C) after the final sheet alignment operation is performed. After performing the binding, the robot moves to the home position (FIG. 22D). The ring portion 200a of the comb-shaped ring 200 is inserted into the binding hole 100a formed on the sheet of the sheet bundle 100 in which the binding portion 50 is aligned, and is bound and fed to the bookbinding discharge portion 70, and both the front jogger 41 and the rear jogger 42 are on standby. After the movement to the position (FIG. 22A) is completed, the next sheet is sent to the compiling unit 40.

[Configuration of the binding part]
As shown in FIGS. 23 to 28, the binding unit 50 receives the comb-shaped rings 200 supplied one by one from the comb-shaped ring supply unit 60, receives the sheet bundle 100 from the compiling unit 40, and binds the sheets. The ring part 200a of the comb-shaped ring 200 is inserted into the hole 100a and bound and bound.

The binding unit 50 includes binding means 51 and moving means 52. The binding means 51 receives the comb ring 200 supplied at the ring binder receiving position P1, moves to the paper bundle receiving position P2, receives the sheet bundle 100 with the ring portion 200a of the comb ring 200 opened, and receives the paper. The ring part 200a of the comb ring 200 is inserted into the binding hole 100a of the bundle 100 and bound, and the moving means 52 reciprocates the binding means 51 between the comb ring receiving position P1 and the sheet bundle receiving position P2. The configuration of the binding means 51 and the moving means 52 will be described in detail.

The binding means 51 includes a holding claw member 510, an opening / closing claw member 520, and a ring portion opening / closing mechanism 530. The holding claw member 510 protrudes along the end of the holder body 511 and is provided integrally. The interval between the holding claw members 510 is set to be insertable between the ring portions 200 a of the comb-shaped ring 200. The holding claw member 510 is inserted between the ring portions 200 a of the supplied comb ring 200 to hold the comb ring 200.

The opening / closing claw member 520 is integrally provided so as to protrude along the end of the movable plate 521, and the interval between the opening / closing claw members 520 is set to be insertable between the ring portions 200 a of the comb-shaped ring 200. The opening / closing claw member 520 has a rising portion 520a and a bent portion 520b, and the bent portion 520b has substantially the same width as the holding claw member 510 and is inserted between the ring portions 200a of the comb-shaped ring 200 together with the holding claw member 510. It is set to be possible. The opening / closing claw member 520 is inserted between the ring portions 200a of the supplied comb-shaped ring 200, moves to a position where it is locked to the ring portion 200a, and operates to open the ring portion 200a.

The ring part opening / closing mechanism 530 includes a movable plate 521, a drive plate 531, and a guide plate 532. The movable plate 521 is disposed on the drive plate 531, and the guide plate 532 is disposed on the movable plate 521. An opening / closing claw member 520 is integrally formed at the end of the movable plate 521, and cam holes 521a are formed at three locations in the center. The drive plate 531 is formed with three cam pins 531a in the central portion, and the cam holes 521a are movably engaged with the cam pins 531a so that the movable plate 521 moves when the drive plate 531 moves forward and backward. It has become.

Guide groove 532a is formed in guide plate 532, and guide groove 532a has wide part 532a1 and narrow part 532a2. The wide portion 532a1 is formed to have a width substantially the same as the width of the holding claw member 510 so as to face the holding claw member 510, and the narrow width portion 532a2 extends in a direction away from the holding claw member 510 from the wide portion 532a1. As the movable plate 521 moves, the opening / closing claw member 520 moves along the guide groove 532a.

A rack 533 is formed on the lower side of the drive plate 531, and a pinion 534 is engaged with the rack 533, and the pinion 534 is fixed to the drive shaft 535. Both end portions of the drive shaft 535 are rotatably supported by the holder body 511, and a drive gear 536 is fixed to one end portion. The drive gear 536 meshes with the worm gear 538 via the speed reduction mechanism 537, and the pulley 540 provided on the worm gear shaft 539 is connected to the drive motor 542 via the belt 541. The driving force of the driving motor 542 is transmitted to the belt 541, the pulley 540, the worm gear shaft 539, the worm gear 538, the speed reduction mechanism 537, the driving gear 536, and the driving shaft 535 to rotate the pinion 534, thereby driving through the rack 533. The plate 531 moves forward or backward.

The opening / closing claw member 520 is in the initial position A (FIG. 28A) at the same position as the holding claw member 510, and when the drive plate 531 moves backward by driving of the drive motor 542, the cam pin 531a contacts the cam hole 521a, As a result, the movable plate 521 moves the opening / closing claw member 520 along the wide portion 532a1 of the guide groove 532a in a direction to engage with the ring portion 200a of the comb ring 200. Direction of opening the ring portion 200a of the comb-shaped ring 200 along the narrow width portion 532a2 of the guide groove 532a from the engagement position B (FIG. 28B) where the opening / closing claw member 520 engages with the ring portion 200a of the comb-shaped ring 200 And stops at the position C (FIG. 28C) where the ring portion 200a is opened. The opening / closing claw member 520 is stopped by stopping the driving of the drive motor 542 when the sensor S11 detects the detection flag 543 provided on the driving plate 531, and thereby the opening / closing claw member 520 is engaged with the ring portion 200a of the comb-shaped ring 200. open.

At the position C (FIG. 28 (c)) where the opening / closing claw member 520 opens the ring portion 200a of the comb-shaped ring 200, the drive plate 531 is advanced by the drive of the drive motor 542, and the cam pin 531a contacts the cam hole 521a. As a result, the movable plate 521 moves the opening / closing claw member 520 along the narrow width portion 532a2 of the guide groove 532a, closes the ring portion 200a of the comb-shaped ring 200, and the opening / closing claw member 520 contacts the ring portion 200a of the comb-shaped ring 200. The engagement position B is returned to the engagement position B (FIG. 28B). Further, when the drive plate 531 is advanced, the cam pin 531a is moved in contact with the cam hole 521a, whereby the movable plate 521 causes the opening / closing claw member 520 to move along the wide portion 532a1 of the guide groove 532a and the ring portion 200a of the comb-shaped ring 200. The opening / closing claw member 520 returns to the initial position A (FIG. 28 (a)) at the same position as the holding claw member 510, and the ring portion 200a of the comb ring 200 is closed and stopped. . The opening / closing claw member 520 is stopped by stopping the drive of the drive motor 542 when the sensor S12 detects the detection flag 544 provided on the drive plate 531. Thus, based on the detection information of the sensors S11 and S12, the control means 55 controls the drive motor 542, and the initial position A where the opening / closing claw member 520 is inserted between the ring portions 200a of the comb-shaped ring 200, and the ring The part 200a is reciprocated between the opened positions C, whereby the ring part 200a of the comb-shaped ring 200 is inserted into the binding hole 100a of the sheet and bound.

The moving means 52 is provided with a pair of left and right driven rollers 521 rotatably on the upper part of the pair of left and right support frames 550 and a pair of drive rollers 522 on both ends of the drive shaft 523. The belt 524 is stretched between the driven roller 521 and the drive roller 522, and the drive motor 525 rotates the drive shaft 523 via the power transmission mechanism 526.

A holder body 511 is disposed between the pair of left and right belts 524, both ends of the holder body 511 are fixed to the belt 524, and the drive shaft 523 is rotated via the power transmission mechanism 526 by the rotation of the drive motor 525. Thus, the belt 524 is configured to be raised or lowered. Based on the detection information of the sensors S21 and S22, the control means 55 controls the drive motor 525 to reciprocate the binding means 51 between the comb-shaped ring receiving position P1 and the sheet bundle receiving position P2.

Thus, the moving means 52 reciprocates the binding means 51 between the comb ring receiving position P1 and the sheet bundle receiving position P2, and the binding means 51 moves the comb ring 200 supplied at the comb ring receiving position P1. The sheet bundle is received in a state where the ring portion 200a of the comb-shaped ring 200 is opened by moving to the sheet bundle receiving position P2, and the ring portion 200a of the comb-shaped ring 200 is inserted into the binding hole 100a of the sheet bundle and bound.

The binding means 51 receives the comb-shaped ring 200 supplied at the comb-shaped ring receiving position P1, and moves to the sheet bundle receiving position P2 while opening the ring portion 200a of the comb-shaped ring 200. If the sheet bundle is received in the opened state, the opening time can be shortened because the ring portion 200a of the comb-shaped ring 200 is opened while moving, and bookbinding efficiency is improved.

The binding means 51 receives the comb-shaped ring 200 supplied at the comb-shaped ring receiving position P1, opens the ring portion 200a of the comb-shaped ring 200 at the comb-shaped ring receiving position P1, and then moves to the sheet bundle receiving position P2. The sheet bundle can be configured to be received with the ring portion 200a of the moving comb-shaped ring 200 opened, and the comb-shaped ring 200 can be reliably received and moved.

[Combination of comb ring supply unit]
The comb-shaped ring supply unit 60 according to this embodiment prepares a comb-shaped ring according to the paper size and the number of sheets to be bound, selects the comb-shaped ring based on the information on the bookbinding paper size and the number of sheets, and selects the comb-shaped ring. One comb-shaped ring is supplied to the binding unit 50 one by one with the ring unit 200a closed. This embodiment will be described with reference to FIG. FIG. 29 is a view showing a comb-shaped ring supply unit.

In this embodiment, the comb-shaped ring supply unit 60 includes a supply unit 930, and the control unit 55 selects the comb-shaped ring 200 loaded on the cartridge 61 based on the information on the paper size and the number of sheets, and the selected comb is used. The ring 200 is supplied to the binding part 50 with the ring part 200a closed.

The comb-shaped ring 200 is selected based on the information on the paper size to be bound and the number of sheets. For example, when binding with a paper size of A4, the comb-shaped ring 200 is a long comb-shaped ring and the number of sheets is 40. A comb-shaped ring with a large diameter is selected, and when the number of sheets is 20, a comb-shaped ring with a small diameter is selected. Further, for example, when binding with a paper size of B5, a short comb ring is selected, and when the number of sheets is 40, a comb ring with a large diameter is selected and the number of sheets is 20 sheets. In this case, a comb-shaped ring having a small diameter is selected.

The comb-shaped ring supply unit 60 stores, in the cartridge 61, a plurality of rows of comb-shaped rings 200 corresponding to the size and number of sheets to be bound in a state where the ring unit 200a is closed. In FIG. 29, for example, when the paper size is A4 from the left side of the drawing, a long and large comb-shaped ring is accommodated and a long and small comb-shaped ring is accommodated, and when the paper size is B5, a short and large comb-shaped ring is stored. The ring has a short comb-shaped ring with a small diameter and is stacked in four vertical rows.

The comb-shaped ring supply unit 60 is provided with elevating rails 940 corresponding to the columns of the stacked comb-shaped rings 200 constituting the supplying means 930, and the elevating lift 941 is provided on each elevating rail 940 so that the elevating lift 941 can be moved up and down. It has been. A comb-shaped ring 200 is selected according to the size and number of sheets to be bound, and the lift lift 941 arranged corresponding to the stacking row of the comb-shaped rings 200 having the selected length is driven, and the comb-shaped ring 200 is driven. To raise.

The comb-shaped ring supply unit 60 is provided with delivery means 950 that constitutes supply means 930, and this delivery means 950 includes a drive motor 951, a delivery belt 952, and a knob arm 953 provided on the delivery belt 952. Based on the detection information of the comb-shaped ring receiving position P1, the control means 55 drives the drive motor 951, rotates the feed belt 952, holds the comb-shaped ring 200 selected by the knob arm 953, and holds the comb-shaped ring 200. It supplies to the binding part 50 in the state which closed the part 200a. For example, when binding is performed with a paper size of B5, since the short comb-shaped ring 200 and the number of sheets are 40, the comb-shaped ring 200 having a large diameter is selected, and the comb-shaped ring 200 is selected. The lift lift 941 corresponding to is raised, and the comb-shaped ring 200 is supplied to the bind portion 50 with the ring portion 200a closed.

The binding means 51 receives the comb ring 200 supplied at the comb ring receiving position P1, moves to the paper bundle receiving position P2, receives the sheet bundle in a state where the ring portion 200a of the comb ring 200 is opened, and receives the sheet. The ring part 200a of the comb-shaped ring 200 is inserted into the binding hole 100a of the bundle and bound to bind. As described above, the comb-shaped ring 200 corresponding to the paper size and the number of sheets to be bound is stacked and stored in the cartridge 61 in a state where the ring portion 200a is closed, and the cartridge 61 is based on the information on the paper size and the number of sheets. By selecting the comb-shaped ring 200 loaded on the sheet and supplying the binding unit 50 with the ring unit 200a closed, the booklet can be bound by the comb-shaped ring 200 according to the sheet size and the number of sheets to be bound.

In this embodiment, a long comb-shaped ring is used when binding with a paper size of A4, and a short comb-shaped ring is used when binding with a paper size of B5. Even when bookbinding with a paper size of B5 is performed, a long comb-shaped ring may be used, and a long extra portion may be cut after the bookbinding.

In addition, the control means 55 performs control with the image forming apparatus side. That is, bookbinding is performed based on information from a sensor (not shown) of the binding unit 50, and when an abnormality is detected in the sheet passing through the bookbinding apparatus, it is immediately transmitted to the image forming apparatus side, and the image forming apparatus side operates. Instruct to stop. Further, for example, the bookbinding apparatus notifies the image forming apparatus of the occurrence of a paper jam, the occurrence of a component failure, the stacking tray 900 being full, and the like, and the image forming apparatus controls the stop and return of the apparatus. In this case, the subsequent operation is impossible at the location where the paper jam has occurred or the location where the failure has occurred. When the stacking tray 900 is full, unless the printer side instructs it to “stop operation”, it is physically jammed. Continue operation.

In this embodiment, information on the size of paper to be bound and information on the number of sheets to be bound are received from the image forming apparatus that forms an image on the paper for bookbinding, and the control means 55 performs the same based on this information. Alternatively, the supplying unit 930 may be controlled to select the comb-shaped ring 200 loaded on the cartridge 61, and the selected comb-shaped ring 200 may be supplied to the binding unit 50 with the ring unit 200a closed.

Also, a comb-shaped ring corresponding to the paper size and binding thickness of the paper to be bound is prepared in the comb-shaped ring supply unit 60, the comb-shaped ring is selected based on the information on the bookbinding paper size and binding thickness, and the selected comb-shaped ring is selected. You may make it bind by. Further, a comb ring corresponding to the paper size of the paper to be bound and the number of sheets to be bound is prepared in the comb ring supply unit 60, and the comb ring is selected based on the information on the bookbinding paper size and the number of sheets of paper to be bound. The book may be bound by the selected comb ring. As for the paper size, the case of performing A4 bookbinding and the case of performing paperbinding of the paper size B5 have been described. However, the present invention is not limited to this, and, for example, letter size and legal size can be similarly implemented.

[Composition of booklet discharge unit]
The bookbinding discharge unit 70 includes an extruding unit 71 and a conveying unit 72. The sheet bundle bound by the binding unit 50 is extruded to the conveying unit 72 by the extruding unit 71 and conveyed to the storage stacker 80. The push-out means 71 is supported by the support base 446 and is advanced by a rack 447 and a pinion 448 integrated with the push lever 710. After pushing out the bound sheet bundle to the transport means 72, the push-out means 71 moves backward and returns to the standby position. .

The conveying means 72 is disposed between the storage stacker 80 and the binding section 50 above the comb-shaped ring supply unit 60, and has a belt 720 as an endless conveying means, a conveying claw 721, and a driving motor 722 as a driving means. . The belt 720 is stretched over a pair of

pulleys

723 and 723, and the conveyance claw 721 is provided on the belt 720. By driving the belt 720 by the drive motor 722, the transport claw 721 transports the sheet bundle bound by the bind unit 50 to the storage stacker 80.
The storage stacker 80 is provided with a stacking tray 800 that can be moved up and down, and the stacking tray 900 is lowered while stacking the sheet bundles bound to the stacking tray 900, so that a large amount of bookbinding can be performed.

(Embodiment of the first paper stacking apparatus)
Next, an embodiment of the first paper stacking device will be described. 2. Description of the Related Art Conventionally, some image forming apparatuses include a paper stacking device for stacking paper on which an image is recorded, and take out a paper on which an image stacked on the paper stacking device is recorded. Also, the image forming apparatus is provided with a replaceable sheet post-processing apparatus, and is processed by one or a combination of a stapler, a puncher, a binder, a folding machine, a sealer, and other paper processing machines provided in the sheet post-processing apparatus. There is.

As described above, some image forming apparatuses and sheet post-processing apparatuses are provided with a sheet stacking apparatus for stacking sheets on which images are recorded. In particular, an image is recorded in a situation where the image forming apparatus is downsized. It is difficult to secure a space for taking out paper from a tray on which stacked paper is stacked.

The present invention has been made in view of the above points, and provides a paper stacking apparatus that can easily take out paper by changing the paper take-out position in accordance with the paper size.

The present invention is a paper stacking device for stacking paper on which images are recorded, and a tray on which paper on which images are recorded and a paper on which images to be discharged onto the tray are recorded according to the paper size. The paper stacking apparatus is characterized by comprising a paper take-out position varying means for changing the paper take-out position.
The paper take-out position varying means has a sub-tray that can move between a loading position and a take-out position that are located in a direction perpendicular to the paper discharge direction, and the paper is placed in front of the sub-tray according to the paper size. The sub-tray is ejected to a placement position, and the sub-tray is moved to the take-out position so that the placed paper can be taken out.

Further, the paper take-out position variable means has a discharge roller capable of changing a roller angle with respect to the paper transport direction, changes the roller angle according to the paper size, and changes the paper angle according to the paper size. The discharge direction is changed.

With this configuration, the present invention has the following effects.

In the present invention, the paper take-out position variable means is provided, and the paper on which the image to be discharged onto the tray is recorded is changed according to the paper size, so that, for example, a small-size paper can be easily taken out. Can be discharged into position. The paper can be easily taken out by discharging the paper to the placement position of the sub-tray according to the paper size and moving the sub-tray to the take-out position. Further, by changing the roller angle with respect to the paper transport direction and changing the paper discharge direction according to the paper size, the paper can be easily taken out.

A paper stacking apparatus according to this embodiment will be described with reference to FIGS. 30 is a schematic configuration diagram of an image forming apparatus assembled with a paper post-processing apparatus main body, FIG. 31 is a perspective view of the image forming apparatus before the paper post-processing apparatus main body is assembled, and FIG. 32 is an image with the paper post-processing apparatus main body assembled. 33 is a perspective view of the forming apparatus, FIG. 33 is a view showing a case of taking out a large size paper, FIG. 34 is a view showing a case of taking out a small size paper, and FIG. 35 is an embodiment of a paper stacking device using a manually operated sub-tray. FIG. 36 is a diagram showing an embodiment of a paper stacking apparatus using an automatically operated sub-tray, FIG. 37 is a plan view showing discharge by the paper take-out position varying means of the second embodiment, and FIG. 38 is a paper take-out position varying means. FIG. 39 is a side view showing the mounting structure of the discharge roller. *

(First embodiment)
The sheet post-processing apparatus main body 2012 of this embodiment is an apparatus for processing a sheet on which an image is recorded by the finisher unit 2011, and is assembled to a set unit 2052 formed on the apparatus main body 2051 of the image forming apparatus 2050. A paper supply unit 2053 for supplying paper is disposed below the apparatus main body 2051, an image forming unit 2054 is disposed above the paper supply unit 2053, and a document reading unit 2055 is disposed above the apparatus main body 2051. And a display unit 2059 for displaying and inputting processing information on the front side. An image forming unit 2054 is positioned below the sheet post-processing apparatus main body 2012, and a document reading unit 2055 is positioned above. An original image is read by the original reading unit 2055, and this image information is sent to the image forming unit 2054. The image forming unit 2054 records the image information on the paper sent from the paper supply unit 2053.

The sheet post-processing apparatus main body 2012 includes a conveyance path 2013 for processing a sheet on which an image is recorded by the finisher unit 2011, and a conveyance path 2014 for discharging the sheet without being processed by the finisher unit 2011. The paper that is processed and discharged by the finisher unit 2011 is placed on the discharge tray 2015, and the paper that is discharged without being processed by the finisher unit 2011 is placed on the top tray 2016 of the paper stacking device 2010. The finisher unit 2011 includes, for example, one that is processed by one or a combination of a stapler, a puncher, a binder, a folding machine, a sealing machine, and other paper processing machines, which are known and record images. This is a configuration for post-processing the printed paper. In this embodiment, the sheet post-processing apparatus main body 2012 is configured to process a sheet on which an image is recorded by the finisher unit 2011. However, the sheet post-processing apparatus main body 2012 may be configured to accumulate on a tray without the finisher unit 2011. In addition, the paper stacking device 2010 may be integrated with the image forming device 2050 or may be replaceable.

The discharge tray 2015 is disposed so as to protrude from the side surface of the apparatus main body 2051 of the image forming apparatus 2050 in the discharge direction. The top tray 2016 is positioned below the document reading unit 2055 and is placed on the top tray 2016. The sheet is located in the space K formed by the setting unit 2052 and is taken out from the narrow space K.

The paper stacking device 2010 of the paper post-processing device main body 2012 is provided with a paper take-out position varying means 2020. The paper take-out position varying means 2020 is configured to change the paper take-out position, and has a sub-tray 2021 that can move between a placement position and a take-out position that are orthogonal to the paper discharge direction. The sub-tray 2021 is movably provided on the top tray 2016. As shown in FIG. 35, one end 2022a of the urging means 2022 is attached to the apparatus main body 2012 by a fixing member 2023, and the other end 2022b is fixed by a fixing member 2024. It is attached to the sub-tray 2021. The urging means 2022 is constituted by, for example, a coil spring, and the sub-tray 2021 is urged by the urging means 2022 so that it is always located at the mounting position. The sub-tray 2021 is provided with a clue 2021a on the take-out side, and the sub-tray 2021 can be moved to the take-out position against the urging force of the urging means 2022 by the clue 2021a.

Next, processing performed by the image forming apparatus 2050 in which the sheet post-processing apparatus main body 2012 is assembled to the setting unit 2052 of the apparatus main body 2051 will be described. In the image forming apparatus 2050, an image of the original is read by the original reading unit 2055, this image information is sent to the image forming unit 2054, and the image information is recorded on the paper sent from the paper supply unit 2053 by the image forming unit 2054.

When processing is performed by the finisher unit 2011 of the sheet post-processing apparatus main body 2012, a sheet on which an image is recorded is sent from the transport path 2013 to the finisher unit 2011, and the sheet processed by the finisher unit 2011 is output to the discharge tray 2015. Placed. The paper discharged without being processed by the finisher unit 2011 is placed on the top tray 2016 of the paper stacking device 2010 from the conveyance path 2014.

The paper stacking apparatus 2010 is provided with a paper take-out position variable means 2020, and changes the paper take-out position of paper discharged without being processed by the finisher unit 2011 according to the paper size. For example, when the paper size is a large size (B4 large size), the discharged paper is placed in a wide range from the top of the sub-tray 2021 to the top tray 2016 as shown in FIG. Therefore, the user can take out the paper on the front side without putting his hand into the space K formed by the setting unit 2052.

On the other hand, for example, when the paper size is a small size (A5 large size), the discharged paper is placed on the central portion of the sub-tray 2021, as shown in FIG. Holds the clue 2021a of the sub-tray 2021, pulls the clue 2021a forward, and moves the sub-tray 2021 to the take-out position against the urging force of the urging means 2022. In this way, since the sub-tray 2021 can be moved to the front take-out position, the user can take out the paper without putting his hand into the space K formed by the setting unit 2052.

Next, another embodiment of the paper take-out position varying means 2020 will be described with reference to FIG. The paper take-out position varying means 2020 of this embodiment controls the drive mechanism 2025 that moves the sub-tray 2021 between the placement position and the take-out position, and the drive mechanism 2025 so that the sub-tray 2021 is placed when the paper is discharged. And a control means 2026 for positioning the sub-tray 2021 at the take-out position.

The drive mechanism 2025 includes a rack 2025a provided on the sub-tray 2021, a drive motor 2025b, and a pinion 2025c provided on the output shaft of the drive motor 2025b, and the rack 2025a and the pinion 2025c are engaged with each other. By driving the drive motor 2025b and rotating the pinion 2025c, the sub-tray 2021 is moved between the placement position and the take-out position via the rack 2025a.

For example, when the paper size is a large size (B4 large size), the discharged paper is placed in a wide range from the top of the sub-tray 2021 to the top tray 2016. The sheet can be taken out without putting the hand into the space K formed by the portion 2052.

On the other hand, for example, when the paper size is a small size (A5 large size), the discharged paper is placed on the central portion of the sub-tray 2021, as shown in FIG. Reference numeral 2026 drives the drive motor 2025b based on the size information of the discharged paper and rotates the pinion 2025c to move the sub-tray 2021 from the placement position to the take-out position via the rack 2025a. In this way, since the sub-tray 2021 is moved to the front take-out position, the user can take out the paper without putting his hand into the space K formed by the setting unit 2052. When the paper is taken out from the sub-tray 2021, the drive motor 2025b is driven and the pinion 2025c is rotated to return the sub-tray 2021 to the placement position via the rack 2025a.

(Second Embodiment)
This embodiment will be described with reference to FIGS. Since the paper stacking apparatus 2010 of this embodiment is configured in the same manner as in the first embodiment, description thereof is omitted. The paper take-out position varying means 2020 of this embodiment has a discharge roller 2031 that can change the roller angle with respect to the paper transport direction, and changes the roller angle according to the paper size, depending on the paper size. Change the paper discharge direction.

The discharge roller 2031 has a roller 2032, a roller holder 2033, and an operation arm 2034. The roller 2032 is rotatably supported by a roller holder 2033 via a support shaft 2035, and an operation arm 2034 is integrally formed with the roller holder 2033. A support shaft 2036 is formed integrally with the roller holder 2033, and the support shaft 2036 is attached to a support bar 2037 so as to be rotatable.

The support bar 2037 is arranged in a direction perpendicular to the paper discharge direction, and the discharge roller 2031 is arranged in four places on the support bar 2037. The arrangement of the discharge rollers 2031 is not limited to four, but may be a plurality of places. The operation arms 2034 of these discharge rollers 2031 are connected to an operation bar 2038 via a connection pin 2039. By operating the operation bar 2038, it becomes possible to change the roller angle θ with respect to the paper transport direction. ing.

A rack 2040 is provided at the end of the operation bar 2038, the rack 2040 meshes with the pinion 2041, and the pinion 2041 is provided on the output shaft of the drive motor 2042. The drive motor 2042 is controlled by the control means 2043. The control means 2043 rotates the drive motor 2042 according to the paper size, and the rotation of the drive motor 2042 causes the rollers of the discharge roller 2031 to pass through the operation bar 2038 and the operation arm 2034. Change the angle and change the paper discharge direction according to the paper size.
For example, when the paper size is a large size (B4 large size), the discharged paper is fed by a discharge roller 2031 whose roller angle is parallel to the paper discharge direction, and this paper is placed on the sub-tray 2021. From the top tray 2016 to the top tray 2016, the user can take out the sheet without putting his hand to the back of the space K formed by the set portion 2052.

On the other hand, for example, when the paper size is a small size (A5 large size), the discharged paper is placed on the central portion of the sub-tray 2021, and the control unit 2043 discharges the paper. The drive motor 2042 is driven based on the size information of the paper to be rotated, and the pinion 2041 is rotated to change the roller angle θ of the discharge roller 2031 via the operation bar 2038 and the operation arm 2034 via the rack 2040, and thereby the discharge roller The sheet fed by 2031 is discharged to the front take-out position. Therefore, the user can take out the paper without putting his hand into the depth of the space K formed by the setting unit 2052. In this way, by changing the roller angle θ with respect to the paper transport direction, the paper discharge direction can be changed according to the paper size, and the paper can be easily taken out.

The present invention can be applied to a bookbinding apparatus that aligns image-formed sheets to form a sheet bundle, and binds and binds the sheet bundle, and reliably aligns and aligns side-curled (toy curled) sheets with a simple structure. It is possible to bind as a bundle.

A carry-in conveyance path B carry-out conveyance path C reverse conveyance path D reverse unit 10 bookbinding apparatus 20

paper conveyance paths

21, 22

conveyance rollers

23, 24 roller drive means 25 reverse switching claw 26 reverse roller 27 switching guide 28 manual feed cover 29a1 carry-in upper side Guide 29a2 Carry-in lower guide 29c1 Carry-out upper guide 29c2 Carry-out lower guide 29d Reverse path cover
30 Binding hole forming section 31 Punch unit 32 Drive mechanism 33, 34 Roller driving means 33a Upstream upper sheet discharge roller 33b Upstream lower sheet discharge roller 38 Stopper 39 Punch 40 Compile section 41 Front jogger 42 Rear jogger 43 End fence 44 Paddle unit 50 Binding unit 51 Binding unit 52 Moving unit 55 Control unit 60 Comb ring supply unit 61 Cartridge 62 Lifting unit 63 Delivery unit 70 Bookbinding discharge unit 71 Extruding unit 72 Conveying unit 80 Storage stacker 100 Sheet bundle 100a Binding hole 200 Comb ring 200a Ring Unit 310 interlocking mechanism 311 link 312 cam 313 rotating shaft 314 drive sprocket 315 deceleration mechanism 316 power transmission means 317 drive pin 318 support pin 319a punch drive plate 319b spring 320 drive source 3 DESCRIPTION OF SYMBOLS 1 Motor S1 Reference | standard position detection sensor S2 Paper passage detection sensor S3 Paper bundle discharge | emission detection sensor S4 Rotation management sensor 510 Holding claw member 520 Opening / closing claw member 521 Movable plate 530 Ring part opening / closing mechanism 531 Driving plate 532 Guide plate 800 Alignment part 801, 802 A pair of left and right side fences 801a, 802a Side walls 801b, 802b Upper wall 801c, 802c Lower wall 801b1, 802b1 Front convex part 801b11, 802b11, 801b12, 802b12 Guide surface 801b13, 802b13 Inclined surface 801b2, 802b2 Rear convex part 801b2180 , 801b22, 802b22 Guide surfaces 801b23, 802b23 Inclined surfaces 801c1, 802c1 Central convex portions 801c11, 802c11, 801c12, 8 2c12 Guide surfaces 801c13, 802c13 Inclined surfaces 803, 804 Alignment groove 900 Stack tray 2010 Paper stacking device 2011 Finisher unit 2012 Paper post-processing device main body 2013, 2014 Transport path 2015 Discharge tray 2016 Top tray 2020 Paper take-out position variable means 2021 Sub-tray 2021a Clue 2022 Biasing means 2023 and 2024 Fixing member 2025 Drive mechanism 2026 and 2043 Control means 2031 Discharge roller 2037 Support bar 2038 Operation bar

Claims

A bookbinding apparatus that aligns sheets of image-formed sheets to form a bundle of sheets, and binds and binds the bundle of sheets.
It has an alignment unit that aligns the paper and aligns it with the paper bundle,
The matching portion is
Including a pair of left and right side fences that align and align both the left and right sides of the conveyed paper,
The pair of left and right side fences have a U-shaped cross section that aligns the left and right ends of the paper,
Side walls that align the sides of the edges of the paper;
An upper wall that aligns the upper surface of the edge of the paper;
A lower wall that aligns the lower surface of the edge of the paper,
On one wall of the upper wall or the lower wall, a front convex portion and a rear convex portion are formed in the transport direction,
On the other wall of the lower wall or the upper wall, a central convex portion is formed in the transport direction,
An alignment groove is formed by the front convex portion and the rear convex portion of the one wall, and the central convex portion of the other wall,
The bookbinding apparatus, wherein the alignment groove guides an end portion of the sheet when the sheets are aligned and aligns and can hold the left and right ends of the sheet.
The front convex portion has a guide surface that guides the front end of the paper in the alignment direction and bends toward the other wall,
The rear convex portion has a guide surface that guides the rear end portion of the paper in the alignment direction and bends toward the other wall,
2. The bookbinding apparatus according to claim 1, wherein the central convex portion has a guide surface that guides the central portion of the sheet in the alignment direction and bends toward the other wall.
The front convex portion, the rear convex portion, and the central convex portion are
The bookbinding apparatus according to claim 1, wherein each of the bookbinding apparatuses has a surface inclined along the alignment direction.
The bookbinding apparatus according to claim 1, wherein the alignment groove has an arc shape when viewed in the alignment direction.
In the previous stage of the matching part,
The paper conveyance path arranged at the upper position of the device main body,
It comprises a carry-in conveyance path on one side of the apparatus main body, a carry-out conveyance path on the other side of the apparatus main body, and a reverse conveyance path that converts the conveyance front end side of the paper to the conveyance rear end side.
With respect to the carry-in conveyance path, the carry-out conveyance path and the reverse conveyance path are arranged so as to be divergent,
At the branch position, a reversing unit that converts the conveyance leading end side of the sheet sent from the image forming apparatus to the conveyance trailing end side is arranged,
The bookbinding apparatus according to any one of claims 1 to 4, wherein a manual feed cover that allows paper to be manually carried into the reversing portion is provided on an upper portion of the apparatus main body.
The inversion part is
A reversing switching claw that allows only passage through the carry-in conveyance path;
A switching guide for switching the paper that has passed through the reverse switching claw to the carry-out conveyance path and the reverse conveyance path;
The switching guide is
At the carry-out position, the paper that has passed through the reverse switching claw is guided to the carry-out conveyance path,
6. The sheet according to claim 5, wherein the sheet that has passed through the reversal switching claw at the reversal position is guided to the reversal conveyance path, and the conveyance front end side of the sheet is converted to the conveyance rear end side and is sent to the binding unit. Bookbinding equipment.
Attach the reverse switching claw to the manual feed cover,
7. The bookbinding apparatus according to claim 5, wherein, when the manual binding is performed, when the manual cover is opened, the reverse switching claw is also opened.
The carry-in conveyance path is composed of a carry-in upper guide and a carry-in lower guide,
The bookbinding apparatus according to any one of claims 5 to 7, wherein the carry-in upper guide can be opened integrally with the manual feed cover.
The carry-out conveyance path is constituted by a carry-out upper guide and a carry-out lower guide,
The bookbinding apparatus according to any one of claims 5 to 7, wherein the carry-out upper guide is openable.
The bookbinding apparatus according to any one of claims 5 to 9, wherein a part of the reversing conveyance path is formed by a reversing path cover provided on an upper part of the apparatus main body.