JP5145584B1 - Sheet post-processing device - Google Patents

Abstract

It is possible to improve the stackability of sheet material bundles, shorten the time for receiving sheet materials, and improve productivity.
A sheet post-processing apparatus includes a sheet transport unit that transports discharged sheet materials to a stacking tray, and a jogger stack unit that supports and stacks the sheet materials discharged by the sheet transport unit. , And a support 20 that supports the rear end of the sheet material discharged by the sheet conveying means at the advanced position, and the jogger stack means is disposed at an upper position with respect to the stacking tray, A support is arranged between the tray and the jogger stack means, the discharged sheet material is supported by a pair of left and right joggers, and the rear end portion of the sheet material is placed on the support at the advanced position to form a sheet material bundle. By opening, the aligned sheet material bundle is dropped onto the stacking tray, the support is moved backward, and the rear end of the sheet material bundle placed on the support is dropped onto the stacking tray. Loading.
[Selection] Figure 4

Description

  The present invention relates to a sheet post-processing apparatus conventionally connected to an image forming apparatus such as a copying machine or a printer.

  2. Description of the Related Art Conventionally, a sheet post-processing apparatus that performs jogger stack processing and stipple processing on a sheet material discharged from an image forming apparatus such as a copying machine or a printer is known. As the sheet post-processing apparatus, for example, by opening the fence of the jogger stack means, the sheet material discharged from the image forming apparatus is dropped and stacked on the stacking tray by stacking the sheet material stapled by the staple means. There is a type in which a next sheet material is stacked and discharged by a sheet conveying means on the sheet material bundle, and a next sheet material bundle is formed by a jogger stack means (Patent Document 1).

JP-A-8-225227

  In this way, the sheet material discharged from the image forming apparatus such as a copying machine or a printer may be curled around the conveyance direction from the structure of the conveyance system of the image forming apparatus, and the sheet material is curled. When jogger stack processing is performed, there is a possibility that the sheet material bundle may be displaced.

  In addition, the sheet material bundle is dropped on the stacking tray and stacked, and the next sheet material is stacked and discharged on the stacked sheet material stack. When the sheet material bundle is dropped onto the stacking tray, There is no air escape between the sheet material bundle and the sheet material bundle, and the sheet material bundle loaded by the air may be displaced.

  This invention has been made in view of such circumstances, it is possible to stack the sheet material bundle without shifting, to improve the stackability of the sheet material bundle, reduce the sheet material reception time, An object of the present invention is to provide a sheet post-processing apparatus capable of improving productivity.

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

According to a first aspect of the present invention, there is provided a sheet conveying unit that conveys a sheet material discharged from the image forming apparatus to a stacking tray;
A jogger stacking means having a pair of left and right joggers that support and stack the sheet material discharged by the sheet conveying means;
A support capable of moving forward and backward, and supporting a rear end portion of the sheet material discharged by the sheet conveying means at an advanced position,
Placing the jogger stack means in an upper position relative to the stacking tray;
Placing the support between the loading tray and the jogger stack means;
The sheet material discharged by the sheet conveying means is supported by the pair of left and right joggers, the rear end portion of the sheet material is placed on the support at the forward movement position to form a sheet material bundle, and the pair of left and right joggers are opened. To drop the aligned sheet material bundle onto the stacking tray,
In the sheet post-processing apparatus, the support is moved backward, and a rear end portion of the sheet material bundle placed on the support is dropped and stacked on the stacking tray.

In the invention according to claim 2, the pair of left and right joggers support and align the front end side portion and the front end bottom portion of the sheet material discharged by the sheet conveying means,
2. The sheet post-processing apparatus according to claim 1, wherein the front end side of the aligned sheet material bundle is dropped onto the stacking tray by opening the pair of left and right joggers.

  The invention according to claim 3 is the sheet post-processing apparatus according to claim 1 or 2, wherein the support supports the inner side in the width direction of the rear end portion of the sheet material.

The invention according to claim 4 is disposed on an upper portion of the image forming apparatus,
4. The sheet post-processing apparatus according to claim 1, wherein the sheet conveying unit conveys a sheet material conveyed from an upper part of the image forming apparatus to the stacking tray. 5. is there.

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

  According to the first aspect of the present invention, the jogger stack unit is disposed at an upper position with respect to the stacking tray, the support is disposed between the stacking tray and the jogger stack unit, and the sheet discharged by the sheet transport unit. The material is supported by a pair of left and right joggers, and the rear end portion of the sheet material is placed on the support at the advanced position so that the sheet material can be smoothly formed without shifting the sheet material. Also, by opening the pair of left and right joggers, the aligned sheet material bundle is dropped onto the stacking tray, the support is moved backward, and the rear end portion of the sheet material bundle placed on the support is dropped onto the stacking tray for loading. Thus, the sheet material bundle can be smoothly and quickly dropped onto the stacking tray, and the air escapes to the rear end side of the sheet material bundle, so that the sheet material bundle loaded by the air does not shift.

  In the invention according to claim 2, the pair of left and right joggers support and align the front end side and the bottom end of the sheet material discharged by the sheet conveying means, and open the pair of left and right joggers to align the sheet material. By dropping the front end side of the bundle onto the stacking tray, air escapes from the front end side to the rear end side of the sheet material bundle, so that the sheet material bundle stacked by the air does not shift.

  In the third aspect of the present invention, the support supports the inner side in the width direction of the rear end portions of the aligned sheet material bundle, so that the sheet material curls around the conveyance direction from the structure of the conveyance system of the image forming apparatus. Even if this happens, it is possible to reduce the deviation of the sheet material bundle.

  According to the fourth aspect of the present invention, the sheet material that is disposed on the upper portion of the image forming apparatus and is carried from the upper portion of the image forming apparatus can be conveyed to the stacking tray.

It is a top view of a sheet post-processing apparatus. It is a front view of a sheet post-processing apparatus. It is a side view of a sheet post-processing apparatus. It is a perspective view of a sheet post-processing apparatus. It is a block diagram of a sheet post-processing apparatus. It is sectional drawing of a sheet | seat post-processing apparatus. It is a figure which shows the action | operation of a support. It is a figure which shows a stack and a jogger. It is a figure which shows stacking | stacking of a sheet material bundle. It is a figure which shows the state of a jogger and a stack. It is a figure which shows the state of stipple. It is a figure explaining the action | operation when not stippling. It is a figure explaining the action | operation when not stippling. It is a figure explaining the action | operation in the case of stippling. It is a figure explaining the action | operation in the case of stippling.

  Hereinafter, embodiments of the sheet post-processing apparatus of the present invention will be described. The embodiment of the present invention shows the most preferable mode of the present invention, and the present invention is not limited to this.

(Configuration of sheet post-processing device)
1 is a plan view of a sheet post-processing apparatus, FIG. 2 is a front view of the sheet post-processing apparatus, FIG. 3 is a side view of the sheet post-processing apparatus, FIG. 4 is a perspective view of the sheet post-processing apparatus, and FIG. It is a block diagram of an apparatus.

  The sheet post-processing apparatus 1 according to this embodiment includes a stacking tray 3, a support 20, a jogger / stacking unit 30, a stapling unit 40, a sheet conveying unit 10, and the like in the apparatus main body 2. Positioning members 90 are provided on the bottom of the apparatus main body 2 so as to protrude downward on both the left and right sides. The positioning member 90 is inserted into the upper part of an image forming apparatus such as a copying machine or a printer so that the sheet post-processing apparatus 1 is The sheet material that is arranged and discharged from the image forming apparatus is carried in from below. The sheet conveying means 10 is configured to convey the sheet material carried from the upper part of the image forming apparatus to the stacking tray 3, and performs jogger stack processing and stipple processing by the jogger stack means 30 and the stipple means 40. The sheet material bundles thus stacked are stacked on the stacking tray 3.

  6 to 9 show the operation of the sheet post-processing apparatus, FIG. 6 is a control diagram of the sheet post-processing apparatus, FIG. 7 shows the operation of the support, and FIG. FIG. 7B is a view showing a state in which the support has advanced, FIG. 8 is a perspective view showing the stack and the jogger, FIG. 9 shows the stacking of the sheet material bundle, and FIG. 9A is the front end of the aligned sheet material bundle. FIG. 9B is a diagram showing a state in which the rear end side of the aligned sheet material bundle is dropped on the stacking tray.

  In the apparatus main body 2 of this embodiment, a sheet conveying means 10, a support 20, a jogger / stack means 30, a stipple means 40, and the like are arranged. The sheet conveying unit 10 includes a conveyance guide 11 and a conveyance roller 12, and conveys the sheet material 100 discharged from the image forming apparatus onto the stacking tray 3 from a position below the apparatus main body 2. The conveyance roller 12 is driven by a conveyance driving unit 200 including, for example, a power transmission unit such as a motor, a belt, and a gear, and the conveyance roller 12 is driven by the conveyance driving unit 200 to convey the sheet material 100.

  For example, three supports 20 are arranged in the horizontal direction above the stacking tray 3. The support 20 can move forward and backward in the sheet material discharge direction with respect to the apparatus main body 2, supports the rear end portion of the sheet material 100 discharged by the sheet conveying means 10 at the advance position of the support 20, and falls at the reverse position. Let The support 20 is driven by a support drive 201 configured by, for example, power transmission means such as a motor and a cam, and the support 20 moves forward and backward by the support drive 201.

  The jogger / stack means 30 has a pair of left and right joggers 31 for stacking and jogging. The pair of left and right joggers 31 can move in the left-right direction with respect to the sheet material discharge center position in the apparatus main body 2. The pair of left and right joggers 31 have a U-shaped cross section composed of a lower guide 31a, an upper guide 31b, and a connecting guide 31c, and both the front end both ends and the both ends bottom of the sheet material discharged by the sheet conveying means 10. Support and stack and jogger.

  The pair of left and right joggers 31 are provided on the moving body 38 by a slide lever 32. The pair of left and right joggers 31 are driven by a jogger driving means 202 configured by a power transmission means such as a motor and an operating shaft for aligning and opening and closing the pair of left and right joggers 31. The movement in the left-right direction is driven by jogger movement driving means 203 configured by power transmission means such as a motor, gears, and belts. The sheet material 100 is aligned by a pair of left and right joggers 31.

  The jogger / stack means 30 is disposed above the stacking tray 3, and the support 20 is disposed between the stacking tray 3 and the jogger / stack means 30. For this reason, the sheet material 100 discharged by the sheet conveying means 10 is supported at its leading end by a pair of left and right joggers 31 of the jogger stacking means 30, and its rear end portion is placed on the support 20 at the forward position to align the sheet material bundle. 110. At this time, the support 20 supports the inner side in the width direction of the rear end portion of the sheet material 100, and supports the inner side in the width direction of the rear end portion of the sheet material bundle 110 aligned with the support 20. Even if the sheet material 100 is curled around the conveyance direction due to the structure of the conveyance system, it is possible to reduce the deviation of the sheet material bundle 110.

  By opening the pair of left and right joggers 31, the front end side of the aligned sheet material bundle 110 is dropped onto the stacking tray 3, and only the rear end portion of the sheet material bundle 110 is placed on the support 20, and the support 20 is moved backward. Thus, the rear end portion of the sheet material bundle 110 placed on the support 20 is dropped onto the stacking tray 3 and stacked.

  When loaded, the pair of left and right joggers 31 has a U-shaped cross section composed of a lower guide 31a, an upper guide 31b, and a connecting guide 31c, and supports the both ends of the sheet material 100 and the both bottom ends of the sheet material 100. Therefore, by opening the pair of left and right joggers 31, the leading end side of the aligned sheet material bundle 110 falls on the stacking tray 3. The rear end portion of the sheet material bundle 110 is placed on the support 20, and the support 20 is disposed between the stacking tray 3 and the jogger stack means 30 and is located at a position lower than the pair of left and right joggers 31. By moving the support 20 backward and dropping and stacking the rear end portion of the sheet material bundle 110 placed on the support 20 onto the stacking tray 3, the sheet material bundle 110 can be dropped onto the stacking tray 3 smoothly and quickly. In addition, when dropping, air escapes from the front end side to the rear end side of the sheet material bundle 110, so that the sheet material bundle 110 loaded by the air does not shift.

  Also, a pair of left and right joggers 31 are disposed on the stacking tray 3, and a support 20 is disposed between the stacking tray 3 and the pair of left and right joggers 31, and the support 20 is positioned lower than the pair of left and right joggers 31. Then, the support 20 is moved backward, and the sheet material bundle 110 is dropped and stacked on the stacking tray 3 in a short time, and the next sheet material 100 can receive the pair of left and right joggers 31, shortening the receiving time, Productivity can be improved.

  The stipple means 40 is disposed on the right side of the apparatus main body 2 and stipples the sheet material bundle 110 aligned by the jogger stack means 30, and the stipple is aligned with the aligned sheet material bundle 110. The rear end corner is closed with a needle, and a conventionally known one is used.

  FIG. 10 is a diagram showing the jogger and stack states, and FIG. 11 is a diagram showing the stipple state. On the right side of the apparatus main body 2, a sheet material bundle holder 50 is disposed at a position where the sheet material bundle 110 aligned by the jogger stack means 30 is stapled. The sheet material bundle holder 50 functions as a cover for covering the staple means 40 and holding the sheet material bundle 110 to be stapled.

  In FIG. 10, the pair of left and right joggers 31 of the jogger stack means 30 are at the position of the jogger stack, and the sheet material bundle holder 50 functions as a cover for covering the stipple means 40 and enters a position where fingers and the like are stapled. Is preventing. In this state, the projection 33 formed on the slide lever 32 that supports the right jogger 31 is in a position where the arm 34 is not operated. When the arm 34 pushes one end 36a of the link 36 via the auxiliary lever 35, the other end 36b pushes the contact 37a of the safety switch 37 to turn off the safety switch 37.

  When the pair of left and right joggers 31 of the jogger stack means 30 is in the position of the jogger stack, the projection 33 formed on the slide lever 32 that supports the right jogger 31 is in a position where the arm 34 is not operated. Since the arm 34 does not push the one end 36a of the link 36 via the auxiliary lever 35 and the link 36 does not operate, the safety switch 37 prohibits the operation of the staple means 40 in the off state. .

  In FIG. 11, the pair of left and right joggers 31 of the jogger stack means 30 move to the stipple position and stipple. At this stipple position, the projection 33 formed on the slide lever 32 that supports the right jogger 31 moves the arm 34. Since the arm 34 is actuated, the arm 36 pushes one end 36a of the link 36 via the auxiliary lever 35, the link 36 is actuated, and the other end 36b pushes the contact 37a of the safety switch 37 to activate the safety switch 37. The energization is turned on, and the stipple means 40 operates to stipple.

(Operation of sheet post-processing equipment)
The control device 300 receives an instruction for the number of sheets 100 to be aligned from the control device of the image forming apparatus, drives the conveyance driving means 200, the support drive 201, the jogger driving means 202, and the jogger movement driving means 203, and does not stap. The shift product operation and the bar product operation in the case of the case, the shift product operation and the bar product operation in the case of the stippling are performed.

[Shift product operation without stippling]
The operation when not stippling will be described with reference to FIGS. The pair of left and right joggers 31 can move in the left-right direction with respect to the sheet material discharge center position K1, and the sheet material 100 is based on the sheet material discharge center position K1 that has been conveyed, and the right end surface and the left side of the sheet material 100. The end surfaces are aligned by the operation of the pair of left and right joggers 31. The rear end portion of the sheet material 100 is supported by the support 20 at the advanced position (step a11).

  After aligning the right end surface and the left end surface of the sheet material 100, the sheet material bundle 110 is moved rightward from the sheet material discharge center position K1 while being sandwiched between the pair of left and right joggers 31, and separated by a distance L1. The loading position is K2 (step a12).

  At this stacking position K 2, the pair of left and right joggers 31 are opened, the leading end side of the aligned sheet material bundle 110 is dropped onto the stacking tray 3, and only the rear end portion of the sheet material bundle 110 is placed on the support 20. In this state, the support 20 is then moved backward, and the rear end portion of the sheet material bundle 110 placed on the support 20 is dropped onto the stacking tray 3 and stacked (step a13). When the sheet material bundle 110 is dropped onto the stacking tray 3, air escapes from the front end side to the rear end side of the sheet material bundle 110 to be dropped, so that the sheet material bundle 110 loaded by the air does not shift.

  Next, the pair of left and right joggers 31 are moved to the sheet material discharge center position K1, and the sheet material 100 that is sent next has the right and left end surfaces of the sheet material 100 left and right with respect to the sheet material discharge center position K1. The rear ends of the sheet material 100 are supported by the support 20 at the advanced position (step a14).

  After the right end surface and the left end surface of the sheet material 100 are aligned, the sheet material bundle 110 is moved leftward from the sheet material discharge center position K1 while being sandwiched between the pair of left and right joggers 31 and separated by a distance L2. The loading position K3 is set (step a15).

  At this stacking position K3, the pair of left and right joggers 31 are opened, the leading end side of the aligned sheet material bundle 110 is dropped onto the stacking tray 3, and only the rear end portion of the sheet material bundle 110 is placed on the support 20. In this state, the support 20 is then moved backward, and the rear end portion of the sheet material bundle 110 placed on the support 20 is dropped onto the stacking tray 3 and stacked (step a16). When the sheet material bundle 110 is dropped onto the stacking tray 3, air escapes from the front end side to the rear end side of the sheet material bundle 110 to be dropped, so that the sheet material bundle 110 loaded by the air does not shift.

  In this way, the sheet material bundle 110 is aligned at the sheet material discharge center position K1 and moved to one of the left and right directions, the pair of left and right joggers 31 are opened at the stacking position K2, and the support 20 is moved backward to stack the sheet material bundle 110. The operation of dropping and stacking on the tray 3 and the sheet material bundle 110 are aligned at the sheet material discharge center position K1 and moved to the other side in the left-right direction to open the pair of left and right joggers 31 at the stacking position K3 to move the support 20 backward. Then, the operation of dropping and stacking the sheet material bundle 110 on the stacking tray 3 is repeated, and the sheet material bundle 110 is alternately displaced L3 and stacked on the stacking tray 3 (step a17).

[Bar stack operation without stippling]
Steps a11 to a13 described in the shift product operation without stapling are repeated, and the operations after step a14 are not performed. In this way, the sheet material bundle 110 is aligned at the sheet material discharge center position K1 and moved only in one of the left and right directions, the pair of left and right joggers 31 are opened at the loading position K2, and the support 20 is moved backward to move the sheet material bundle 110. The operation of dropping and stacking on the stacking tray 3 is repeated, and the sheet material bundle 110 is stacked on the stacking tray 3 without being displaced alternately.

[Shift product operation when stippling]
The operation for stapling will be described with reference to FIGS. The pair of left and right joggers 31 can be moved in the left-right direction with respect to the sheet material discharge center position K1, and the sheet material 100 is based on the conveyed sheet material discharge center position K1, and the right end surface and the left end surface of the sheet material 100. Are aligned by the operation of the pair of left and right joggers 31. The rear end portion of the sheet material 100 is supported by the support 20 at the advanced position (step a21).

  After the right end surface and the left end surface of the sheet material 100 are aligned, the right end surface and the left end surface of the sheet material bundle 110 are moved to the right while being sandwiched between the pair of left and right joggers 31 and are stapled by the stipple means at the stipple position K4 (step) a22). After the stapling, the right end surface and the left end surface of the sheet material bundle 110 are moved to the left while being sandwiched between the pair of left and right joggers 31 and set to the return stacking position K2 (step a23).

  At this stacking position K2, the pair of left and right joggers 31 are opened, the leading end side of the stapled sheet material bundle 110 is dropped onto the stacking tray 3, and only the rear end portion of the sheet material bundle 110 is placed on the support 20. In this state, the support 20 is then moved backward, and the rear end portion of the sheet material bundle 110 placed on the support 20 is dropped onto the stacking tray 3 and stacked (step a24).

  Next, the pair of left and right joggers 31 are moved to the sheet material discharge center position K1, and the sheet material 100 that is sent next has the right and left end surfaces of the sheet material 100 left and right with respect to the sheet material discharge center position K1. The rear end portion of the sheet material bundle 110 is supported by the support 20 at the forward position (step a25).

  After aligning the right end surface and left end surface of the sheet material, the right end surface and the left end surface of the sheet material bundle 110 are moved to the right while being sandwiched between the pair of left and right joggers 31 and are stapled by the stipple means at the stipple position K4 (step a26). ). After the stapling, the right end surface and the left end surface of the sheet material bundle 110 are moved leftward while being sandwiched between the pair of left and right joggers 31 and set to the return stacking position K3 (step a27).

  At this stacking position K3, the pair of left and right joggers 31 are opened, the leading end side of the stapled sheet material bundle 110 is dropped onto the stacking tray 3, and only the rear end portion of the sheet material bundle 110 is placed on the support 20. In this state, the support 20 is then moved backward, and the rear end portion of the sheet material bundle 110 placed on the support 20 is dropped onto the stacking tray 3 and stacked (step a28).

  In this manner, the sheet material bundle 110 is aligned at the sheet material discharge center position K1 and moved to one side in the left-right direction, and then stapled by the stipple means 40 at the stipple position K4, and then moved to the left and right at one stacking position K2. Opening the pair of joggers 31 and moving the support 20 backward to drop and stack the sheet material bundle 110 on the stacking tray 3, and aligning the sheet material bundle 110 at the sheet material discharge center position K1 and moving it to one side in the left-right direction Then, the stapler 40 is stipulated at the stipple position K4 and then moved to open the pair of left and right joggers 31 at the other stacking position K3. The sheet material bundle 110 is alternately displaced L3 on the stacking tray 3 and stacked. That (step a29).

[Bar stack operation when stippling]
Steps a21 to a24 described in the shift product operation in the case of stippling are repeated, and the operations after step a25 are not performed. In this way, the sheet material bundle 110 is aligned at the sheet material discharge center position K1 and moved only in one of the left and right directions and is stapled by the stipple means 40 at the stipple position K4. The pair of left and right joggers 31 are opened, the support 20 is moved backward, and the sheet material bundle 110 is dropped onto the stacking tray 3 and stacked, and the sheet material bundle 110 is stacked on the stacking tray 3 without being displaced alternately. To do.

  The present invention is conventionally applied to a sheet post-processing apparatus connected to an image forming apparatus such as a copying machine or a printer, and can stack a sheet material bundle without shifting, thereby improving the stackability of the sheet material bundle. In addition, the sheet material receiving time can be shortened and productivity can be improved.

DESCRIPTION OF SYMBOLS 1 Sheet post-processing apparatus 2 Apparatus main body 3 Stack tray 10 Sheet conveyance means 11 Conveyance guide 12 Conveyance roller 20 Support 30 Jogger stack means 31 A pair of left and right joggers 31a Lower guide 31b Upper guide 31c Connection guide 32 Slide lever 33 Protrusion 34 Arm 35 Auxiliary lever 36 Link 37 Safety switch 38 Moving body 40 Stapling means 50 Sheet material bundle holder 100 Sheet material 110 Sheet material bundle 200 Conveyance drive means 201 Support drive means 202 Jogger drive means 203 Jogger movement drive means 300 Controller

Claims (4)

Sheet conveying means for conveying the sheet material discharged from the image forming apparatus to a stacking tray;
A jogger stacking means having a pair of left and right joggers that support and stack the sheet material discharged by the sheet conveying means;
A support capable of moving forward and backward, and supporting a rear end portion of the sheet material discharged by the sheet conveying means at an advanced position,
Placing the jogger stack means in an upper position relative to the stacking tray;
Placing the support between the loading tray and the jogger stack means;
The sheet material discharged by the sheet conveying means is supported on the pair of left and right joggers, and the rear end portion of the sheet material is placed on the support at the advance position to form a sheet material bundle,
By opening the pair of left and right joggers, the aligned sheet material bundle is dropped onto the stacking tray,
A sheet post-processing apparatus, wherein the support is moved backward, and a rear end portion of the sheet material bundle placed on the support is dropped and stacked on the stacking tray. The pair of left and right joggers support and align the leading end side and the leading end bottom of the sheet material discharged by the sheet conveying means,
2. The sheet post-processing apparatus according to claim 1, wherein the front end side of the aligned sheet material bundle is dropped onto the stacking tray by opening the pair of left and right joggers.   The sheet post-processing apparatus according to claim 1, wherein the support supports a width direction inner side of a rear end portion of the sheet material. Placed at the top of the image forming device,
4. The sheet post-processing apparatus according to claim 1, wherein the sheet conveying unit conveys a sheet material conveyed from an upper part of the image forming apparatus to the stacking tray. 5.