JP-7855965-B2 - Image forming system, post-processing device, and binding device

JP7855965B2JP 7855965 B2JP7855965 B2JP 7855965B2JP-7855965-B2

Inventors

見城達弥

Assignees

マックス株式会社

Dates

Publication Date: 20260511
Application Date: 20220804

Claims (13)

An image forming apparatus that forms an image on paper, A post-processing device having a binding device for binding paper output from the image forming apparatus, An image forming system comprising a control unit for controlling the binding device, The aforementioned stapling device is capable of performing a stapling process through a needle forming step in which a needle is formed and moved toward the punching position, and a needle punching step in which the needle is punched out from the punching position. The control unit controls the binding device to repeat the needle forming process multiple times without going through the needle punching process.
The control unit has a first mode in which it performs a binding process after the needle forming process and the needle punching process, The image forming system according to claim 1, wherein the binding device is controlled to switch between a second mode, which performs a needle head-out process that repeats the needle forming process multiple times without going through the needle-punching process, and a second mode, the image forming system according to claim 1.
The binding device comprises a needle forming unit that forms a needle in the needle forming process and moves it toward the punching position, a needle punching unit that punches out the needle at the punching position in the needle punching process, and a displaceable operating unit, wherein the needle forming unit or the needle punching unit operates according to the direction and amount of displacement of the operating unit. The image forming system according to claim 2, wherein the control unit controls the displacement direction and amount of the operating unit to switch the number of operations of the needle forming unit and whether or not the needle ejection unit is operated.
The binding device comprises a plurality of staple forming units, a plurality of staple ejection units, a plurality of operating units, and a single motor that drives the plurality of operating units. The image forming system according to claim 3, wherein the control unit controls the operating unit via the motor.
A post-processing device comprising a binding device for binding paper output from an image forming apparatus that forms an image on paper, The device includes a control unit that controls the binding device, The aforementioned stapling device is capable of performing a stapling process through a needle forming step in which a needle is formed and moved toward the punching position, and a needle punching step in which the needle is punched out from the punching position. The control unit controls the stapling device to repeat the needle forming process multiple times without going through the needle punching process.
The binding device comprises a needle forming unit that forms a needle in the needle forming process and moves it toward the punching position, a needle punching unit that punches out a needle at the punching position in the needle punching process, and a displaceable operating unit, wherein the needle forming unit or the needle punching unit is configured to operate according to the direction and amount of displacement of the operating unit, and the control unit controls the direction and amount of displacement of the operating unit to switch the number of times the needle forming unit operates and whether or not the needle punching unit operates, as described in claim 5.
The binding device comprises a plurality of staple forming units, a plurality of staple ejection units, a plurality of operating units, and a single motor that drives the plurality of operating units. The post-processing device according to claim 6, wherein the control unit controls the operating unit via the motor.
A needle forming unit that forms the needle and moves it toward the ejection position, A needle-punching unit that ejects the needle at the aforementioned ejection position, The system includes a cam that operates the needle molding section and the needle ejection section, A binding device wherein the cam has a first cam surface that operates the needle forming section and the needle dispensing section, and a second cam surface that operates the needle forming section by bypassing all or part of the operation of the needle dispensing section by the first cam surface.
The first cam surface has a needle forming cam surface for operating the needle forming section and a needle ejection cam surface for operating the needle ejection section. The binding device according to claim 8, wherein the second cam surface has a needle forming cam surface for operating the needle forming unit and a needle ejection restricting cam surface that bypasses part or all of the needle ejection cam surface.
The cam is a rotary type cam that rotates around an axis as a pivot point, and the first and second cam surfaces are formed in the circumferential direction. The needle-formed cam surface is formed on one surface in the axial direction of the cam, The stapler according to claim 9, wherein the staple-punching cam surface and the staple-punching restricting cam surface are formed on the other surface in the axial direction.
The staple forming cam surface is formed in a region that partially or completely overlaps with the staple ejection cam surface and the staple ejection restricting cam surface along the rotational direction of the cam, according to claim 10.
The needle ejection section has a driver follower that contacts the needle ejection restricting cam surface, The binding device according to claim 11, wherein the second cam surface has a restricting portion that restricts the driver follower from moving from the needle-extraction restricting cam surface to the needle-extraction cam surface.
Multiple needle forming units that form the needles and move them toward the ejection position, Multiple needle-punching units that eject needles at the aforementioned ejection positions, Multiple cams for operating the needle molding section and the needle ejection section, The cam is driven by a single motor, A binding device wherein the cam has a first cam surface that operates the needle forming section and the needle dispensing section, and a second cam surface that operates the needle forming section by bypassing all or part of the operation of the needle dispensing section by the first cam surface.

Description

This disclosure relates to an image forming system, a post-processing device, and a binding device, comprising an image forming apparatus for forming an image on paper and a post-processing device having a binding device for binding the paper output from the image forming apparatus. An electric stapler, attached to an image forming apparatus or post-processing device, comprises a forming plate that shapes straight staples into a U-shape, a driver plate that drives the U-shaped staples onto paper, and a feed unit that feeds the staples toward a position below the forming plate and driver plate. The staples are connected in a sheet-like manner and housed within the electric stapler as sheet staples. The forming plate is positioned upstream of the driver plate in the feed direction of the sheet staple, and the forming plate and driver plate are configured to work in conjunction. Therefore, when the forming plate and driver plate are operated with staples positioned below each plate, the staples below the forming plate are formed into a U-shape, and the staples below the driver plate are ejected. By the way, when starting an electric stapler, the lead staple of a sheet staple may not be positioned below the forming plate or driver plate. Therefore, it is necessary to repeatedly operate the machine to move (feed) the lead staple to the position below the driver plate, i.e., until it is ready to use for actual staplering. However, during the needle advance process—that is, until the needle is positioned below the driver plate—the driver plate performs a so-called "dry firing" action, resulting in a problem where dry firing marks are left on the paper. For example, an automatic stapling preparation mechanism for an electric stapler is disclosed (Patent Document 1) that uses a detection means to detect whether the leading staple is positioned below the driver plate, and waits without setting the paper to be stapled until the leading staple is positioned below the driver plate, i.e., until actual stapling is possible. According to this mechanism, since the paper to be stapled is not set until the staple head is fully extended, no stapling marks are left on the paper. Patent No. 2932438 This is a configuration diagram showing an example of an embodiment of an image forming system and post-processing device.This is a block diagram showing an example of an embodiment of an image forming system and post-processing device.This is an explanatory diagram showing an example of a needle.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device.This is a flowchart illustrating an example of the operation of the control unit.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device equipped with a binding device of another embodiment.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device equipped with a binding device of another embodiment.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device equipped with a binding device of another embodiment.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device equipped with a binding device of another embodiment.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device equipped with a binding device of another embodiment.This is an explanatory diagram showing an example of the operation of an image forming system and post-processing device equipped with a binding device of another embodiment.This is a perspective view showing an example of an embodiment of a binding device.This is a side cross-sectional view showing an example of an embodim