JP2017007752A - Sheet processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To align a center of a sheet bundle and a center of binding.SOLUTION: A sheet processing device comprises: a binding part for binding a sheet bundle; a sheet bundle loading part for loading the sheet bundle to be bound; and an operation control part for controlling an operation so as to a center of a sheet bundle in a thickness direction of the loaded sheet, and a position of a center of a binding in the thickness direction in the binding part are aligned in the thickness direction. The operation control part controls the operation so that the center of the sheet bundle and the center of binding are aligned in the thickness direction by at least one of the binding part and the sheet bundle loading part.SELECTED DRAWING: Figure 16

Description

  The present invention relates to a sheet processing apparatus.

  2. Description of the Related Art In recent years, there has been known a sheet processing apparatus that is used by being connected to an image forming apparatus as a part of an image forming system and binds a plurality of image-formed sheets output by the image forming apparatus (for example, patents). Reference 1).

  In such a sheet processing apparatus, when binding a sheet bundle, the sheet bundle is received by a binding port of the binding unit, and the received sheet bundle is bound from the thickness direction of the sheet bundle.

  However, in such a sheet processing apparatus, the center in the thickness direction of the sheet bundle (hereinafter referred to as “sheet bundle center”) and the center of the binding position in the thickness direction by the binding unit (hereinafter referred to as “binding center”). When the sheet bundle is bound in a state in which the sheet bundle is misaligned, various problems occur such as wrinkles in the sheet bundle, the binding position is shifted, and the alignment accuracy of the sheet bundle is lowered.

  The present invention has been made to solve such a problem, and an object thereof is to align the sheet bundle center with the binding center.

  In order to solve the above-described problem, an aspect of the present invention includes a binding unit that binds a sheet bundle, a sheet bundle stacking unit that stacks a sheet bundle to be bound, and a sheet in the thickness direction of the stacked sheet bundle. And an operation control unit that controls an operation in accordance with a positional relationship in the thickness direction between the bundle center and the binding center in the thickness direction by the binding unit.

  According to the present invention, the sheet bundle center and the binding center can be aligned.

1 is a diagram showing a simplified overall configuration of an image forming system according to an embodiment of the present invention. 1 is a block diagram schematically showing a hardware configuration of an image forming system according to an embodiment of the present invention. 1 is a block diagram schematically illustrating a functional configuration of an image forming system according to an embodiment of the present invention. It is a perspective view which shows the inside of the binding processing apparatus which concerns on embodiment of this invention. It is a top view which shows the inside of the binding processing apparatus which concerns on embodiment of this invention. It is a side view which shows the inside of the binding processing apparatus which concerns on embodiment of this invention from the main scanning direction. It is a perspective view which shows the inside of the binding processing apparatus which concerns on embodiment of this invention. It is a side view from the main scanning direction of the stapleless binding unit according to the embodiment of the present invention. It is a perspective view which shows the inside of the binding processing apparatus which concerns on embodiment of this invention. It is a top view which shows the inside of the binding processing apparatus which concerns on embodiment of this invention. It is a side view from the sub scanning direction of the sheet bundle bound by the stapleless binding unit according to the embodiment of the present invention. It is a perspective view which shows the inside of the binding processing apparatus which concerns on embodiment of this invention. It is a top view which shows the inside of the binding processing apparatus which concerns on embodiment of this invention. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a flowchart for demonstrating the process when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center. It is a figure which shows the operation example when the binding processing apparatus which concerns on embodiment of this invention aligns a sheet | seat bundle center and a binding center.

Embodiment 1 FIG.
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, the overall configuration of the image forming system 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a diagram showing a simplified overall configuration of an image forming system 1 according to the present embodiment. As shown in FIG. 1, the image forming system 1 according to the present embodiment includes an image forming device 2, a paper feeding device 3, a binding processing device 4, and a document reading device 5.

  The image forming apparatus 2 generates drawing information of CMYK (Cyan Magenta Yellow Key Plate) based on the input image data, and generates a sheet of paper fed from the paper feeding device 3 based on the generated drawing information. To execute image forming output.

  Specific modes of the image forming mechanism in the image forming apparatus 2 according to the present embodiment include an electrophotographic method and an ink jet method. The sheet on which the image is formed by the image forming apparatus 2 is conveyed to the binding processing apparatus 4 or discharged to the discharge tray 6a and sequentially stacked. The paper feeding device 3 feeds paper to the image forming device 2.

  The binding processing device 4 executes a binding process of binding a plurality of image-formed sheets conveyed from the image forming device 2 together. Further, the binding processing device 4 according to the present embodiment includes a stapleless binding unit that executes a binding process (hereinafter referred to as “needleless binding”) using a binding method that does not use a needle. That is, in the present embodiment, the binding processing device 4 functions as a sheet processing device. The sheet bundle bound by the binding processing device 4 is discharged to the discharge tray 6b and sequentially stacked.

  The document reading device 5 has a plurality of photodiodes arranged in a line, and a document is read by a linear image sensor in which light receiving elements such as a CCD (Charge Coupled Device) and a CMOS (Complementary Metal Oxide Semiconductor) image sensor are arranged in parallel. The original is digitized by scanning. The document reading device 5 includes an automatic document feeder that automatically conveys a document to be read, and can also read a document that is automatically conveyed from the automatic document feeder.

  The image forming system 1 according to the present embodiment is an MFP (Multi Function Peripheral) that can be used as a printer, a facsimile, a scanner, and a copying machine by including an imaging function, an image forming function, a communication function, and the like. .

  Next, the hardware configuration of the image forming system 1 according to the present embodiment will be described with reference to FIG. FIG. 2 is a block diagram schematically showing a hardware configuration of the image forming system 1 according to the present embodiment.

  As shown in FIG. 2, the image forming system 1 according to the present embodiment includes a CPU (Central Processing Unit) 10, a RAM (Random Access Memory) 20, a ROM (Read Only Memory) 30, an HDD (Hard Disk Drive) 40, A dedicated device 50, an operation device 60, a display device 70, and a communication I / F 80 are connected via a bus 90.

  The CPU 10 is a calculation unit and controls the operation of the entire image forming system 1. The RAM 20 is a volatile storage medium capable of reading and writing information at high speed, and is used as a work area when the CPU 10 processes information. The ROM 30 is a read-only nonvolatile storage medium and stores a program such as firmware.

  The HDD 40 is a non-volatile storage medium capable of reading and writing information, and stores various data such as image data, various programs such as an OS (Operating System), various control programs, and application programs.

  The dedicated device 50 is hardware for realizing a dedicated function in the image forming system 1. That is, the dedicated device 50 is hardware for realizing a dedicated function in a printer, a facsimile, a scanner, a copying machine, and a binding processing mechanism.

  The operation device 60 is a user interface for inputting information to the image forming system 1 and is realized by an input device such as a keyboard, a mouse, an input button, or a touch panel.

  The display device 70 is a visual user interface for the user to check the state of the image forming system 1 and is realized by a display device such as an LCD (Liquid Crystal Display) or an output device such as an LED (Light Emitting Diode). .

  The communication I / F 80 is an interface for the image forming system 1 to communicate with other apparatuses, and is Ethernet (registered trademark), USB (Universal Serial Bus), Bluetooth (registered trademark), Wi-Fi (Wireless Fidelity) ( Interfaces such as (registered trademark), FeliCa (registered trademark), PCIe (Peripheral Component Interconnect Express), and IEEE (The Institute of Electrical and Electronics Engineers) standards are used.

  In such a hardware configuration, a program stored in a storage medium such as the ROM 30 or the HDD 40 is read into the RAM 20, and the CPU 10 performs an operation according to the program loaded in the RAM 20, thereby configuring a software control unit. A functional block that realizes the function of the image forming system 1 according to the present embodiment is configured by a combination of the software control unit configured as described above and hardware.

  Next, the functional configuration of the image forming system 1 according to the present embodiment will be described with reference to FIG. FIG. 3 is a block diagram schematically showing a functional configuration of the image forming system 1 according to the present embodiment.

  As shown in FIG. 3, the image forming system 1 according to the present embodiment includes a controller 100, a display panel 110, operation buttons 120, a network I / F 130, and a drive unit 140. The controller 100 includes a main control unit 101, an operation display control unit 102, an input / output control unit 103, an image processing unit 104, a signal input control unit 105, a setting information storage unit 106, and a drive control unit 107.

  The display panel 110 is an output interface that visually displays the state of the image forming system 1, and an input when the user directly operates the image forming system 1 or inputs information to the image forming system 1 as a touch panel. It is also an interface. That is, the display panel 110 includes a function for displaying an image for receiving an operation by the user. The display panel 110 is realized by the operation device 60 and the display device 70 shown in FIG.

  The operation button 120 is an input interface when the user directly operates the image forming system 1 or inputs information to the image forming system 1. The operation button 120 is realized by the operation device 60 shown in FIG.

  The user can input setting information such as sheet information by operating the display panel 110 and the operation buttons 120.

  The network I / F 130 is an interface for communicating with an information processing apparatus such as a PC (Personal Computer) operated by a user. The network I / F 130 is realized by the communication I / F 80 shown in FIG. The image forming system 1 receives setting information such as sheet information and various information such as image data and print jobs from the information processing apparatus via the network I / F 130.

  The driving unit 140 is a driving unit such as a motor or a sensor that operates in the image forming apparatus 2, the paper feeding device 3, the binding processing device 4, and the document reading device 5.

  The controller 100 is configured by a combination of software and hardware. That is, the controller 100 includes a software control unit configured by the CPU 10 loading a program stored in a storage medium such as the ROM 30 and the HDD 40 into the RAM 20 and performing operations according to the program, and hardware such as an integrated circuit. Is done.

  The main control unit 101 plays a role of controlling each unit included in the controller 100, and gives a command to each unit of the controller 100.

  The operation display control unit 102 displays information on the display panel 110 or notifies the main control unit 101 of information input via the display panel 110. The main control unit 101 stores the information notified from the operation display control unit 102 in the setting information storage unit 106 or gives a command to each unit of the controller 100 according to the information notified from the operation display control unit 102.

  The input / output control unit 103 inputs information input via the network I / F 130 to the main control unit 101. The main control unit 101 stores the information notified from the input / output control unit 103 in the setting information storage unit 106 or gives a command to each unit of the controller 100 according to the information input from the input / output control unit 103.

  In this way, the main control unit 101 uses the operation display control unit 102 and the input / output control unit 103 to acquire setting information such as sheet information and various types of information such as image data and print jobs.

  The image processing unit 104 outputs drawing information based on image information described by PDL (Page Description Language), for example, document data or image data included in an input print job, under the control of the main control unit 101. Generate as information. The drawing information is information such as CMYK (Cyan Magenta Yellow Black) bitmap data, and is information for the image forming system 1 to draw an image to be formed in the image forming operation.

  Further, the image processing unit 104 processes image data input from the document reading device 5 to generate image data. The image data is information stored in the image forming system 1 as a result of the scanner operation or transmitted to another device via the network I / F 130. Note that the image forming system 1 according to the present embodiment can directly input drawing information instead of image information, and can execute image forming output based on the directly input drawing information.

  The signal input control unit 105 inputs a detection signal and a measurement signal input from a sensor such as a stapleless binding unit detection sensor 422 and an encoder and a measurement device to the main control unit 101. The main control unit 101 inputs the detection signal and measurement signal input from the signal input control unit 105 to the drive control unit 107.

  The setting information storage unit 106 stores setting information such as sheet information. The drive control unit 107 controls the operation of the drive unit 140.

  Next, the configuration of the binding processing device 4 according to the present embodiment will be described with reference to FIGS. FIG. 4 is a perspective view showing the inside of the binding processing device 4 according to the present embodiment. FIG. 5 is a top view showing the inside of the binding processing device 4 according to the present embodiment. FIG. 6 is a side view showing the inside of the binding processing apparatus 4 according to the present embodiment from the main scanning direction.

  As shown in FIGS. 4 to 6, the binding processing device 4 according to the present embodiment includes a rear end alignment stopper 410, a needleless binding unit 420, a needleless binding unit moving guide rail 421, a needleless binding unit detection sensor 422, A sheet stacking plate 440, a jogger fence 450, and a conveyance roller 470 are provided.

  The trailing edge aligning stopper 410 aligns the sheet conveying direction of the sheet bundle A by abutting the leading edge in the sheet conveying direction of the sheets stacked on the sheet stacking plate 440.

  Prior to the binding process, the stapleless binding unit 420 stands by at the home position that is the reference position, and at the stage of the binding process, as shown in FIG. 7, the stapleless binding unit 420 moves along the home along the stapleless binding unit moving guide rail 421. Move from position to binding position.

  Then, as shown in FIGS. 8 (a) and 8 (b), the needleless binding unit 420 is positioned between the concave and convex upper binding teeth 420a and the lower binding teeth 420b (hereinafter referred to as the following) at the binding position. The sheet bundle A is bound by pressing the sheet bundle A from the thickness direction of the sheet bundle with a “binding edge”. That is, in the present embodiment, the needleless binding unit 420 functions as a binding portion, and the upper binding teeth 420a and the lower binding teeth 420b function as a first pressing portion and a second pressing portion, respectively.

  As shown in FIGS. 9 to 11, the sheet bundle A thus pressed is bound by binding the fibers between the sheets at a plurality of binding positions B.

  Thereafter, the stapleless binding unit 420 returns to the home position along the stapleless binding unit moving guide rail 421 when the binding process is completed. At this time, the binding processing device 4 detects that the stapleless binding unit 420 is waiting at the home position by the stapleless binding unit detection sensor 422 or returns the stapleless binding unit 420 to the home position. Is detected.

  The sheet stacking plate 440 stacks the sheets until all the sheets to be processed for binding the sheet bundle are prepared. That is, in this embodiment, the sheet stacking plate 440 functions as a sheet bundle stacking unit.

  As shown in FIGS. 12 and 13, the jogger fence 450 moves to both ends of the sheet bundle A in the sheet width direction while moving in opposite directions at both ends in the sheet width direction of the sheet bundle A stacked on the sheet stacking plate 440. By pressing, the end portions in the sheet width direction of the sheet bundle A are aligned.

  The conveyance roller 470 further conveys the sheet conveyed to the sheet stacking plate 440 to the downstream side in the sheet conveyance direction, and abuts the front end of the sheet in the sheet conveyance direction against the trailing edge alignment stopper 410. Further, the conveyance roller 470 discharges the sheet bundle A after the binding process to the discharge tray 6b.

  In the binding processing apparatus configured as described above, when the sheet bundle is bound in a state in which the position in the thickness direction is shifted from the center in the thickness direction of the sheet bundle and the center of the binding position in the thickness direction by the stapleless binding unit. Various problems occur, such as wrinkles in the sheet bundle, binding position shift, and sheet bundle alignment accuracy decreases.

  Therefore, the binding processing device 4 according to the present embodiment includes a center position in the thickness direction of the sheet bundle (hereinafter referred to as “sheet bundle center”) and a center of the binding position in the thickness direction of the stapleless binding unit 420 (hereinafter referred to as “sheet bundle center”). The operation is controlled according to the positional relationship in the thickness direction of the sheet bundle.

  That is, the binding processing device 4 according to the present embodiment is configured to align the position in the thickness direction of the sheet bundle with the sheet bundle center binding center, as shown in FIGS. 14 and 15. 14 and 15 are diagrams illustrating an operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center.

  Next, processing when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center will be described with reference to FIG. FIG. 16 is a flowchart for explaining processing when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center. Hereinafter, the distance between the sheet bundle center and the binding center is referred to as a “deviation amount”.

  As shown in FIG. 16, when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center, first, the main control unit 101 calculates the thickness of the sheet bundle to be bound. As the sheet bundle information necessary for printing, the number of sheet bundles and the thickness per sheet are acquired from the print job or setting information storage unit 106 (S1601).

  Then, the main control unit 101 calculates the thickness of the sheet bundle to be bound from the number and thickness acquired in S1601 (S1602), and refers to the deviation amount description information to calculate the thickness of the sheet bundle calculated in S1602. A deviation amount corresponding to the depth is calculated (S1603).

  Here, the deviation amount description information is information describing how the deviation amount changes according to the thickness of the sheet bundle, that is, information describing the relationship between the thickness of the sheet bundle and the deviation amount. This is stored in the setting information storage unit 106 in advance.

  Then, the main control unit 101 controls the drive control unit 107 based on the deviation amount calculated in S1603 so that the deviation amount becomes 0, that is, the sheet bundle center and the binding center are aligned. Is operated (S1604). That is, in the present embodiment, the main control unit 101 functions as an operation control unit.

  Note that the main control unit 101 directly measures the amount of deviation by a measuring device such as a sensor instead of calculating the amount of deviation, that is, the process of S1601 to S1603, and controls the drive control unit 107 based on the measured value. Thus, each part may be configured to operate so that the sheet bundle center and the binding center are aligned.

  Next, an operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center will be described with reference to FIGS. 17 to 19. 17 to 19 are diagrams illustrating an operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center.

  As shown in FIGS. 17 and 18, the binding processing device 4 according to the present embodiment moves the stapleless binding unit 420 in the thickness direction of the sheet bundle in accordance with the amount of deviation, thereby determining the sheet bundle center and the binding center. Are configured to align.

  At this time, as shown in FIG. 19, the binding processing device 4 according to the present embodiment rotates the worm gear 420g by the needleless binding unit drive motor 420f via the drive pulley 420c, the driven pulley 420d, and the timing belt 420e.

  Then, as shown in FIG. 19, the binding processing device 4 according to the present embodiment converts the rotation of the worm gear 420g into the movement in the thickness direction of the sheet bundle of the unit base 420h fixed to the stapleless binding unit 420. By doing so, the stapleless binding unit 420 is configured to move in the thickness direction of the sheet bundle.

  Further, as shown in FIG. 19, the needleless binding unit 420 moves along the posture stabilization shaft 420k via the bearing 420i and the bearing 420j fixed to the needleless binding unit 420, thereby changing its posture. Configured to maintain.

  Next, another operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center will be described with reference to FIGS. 20 to 22 are diagrams illustrating an operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center.

  As shown in FIGS. 20 and 21, the binding processing device 4 according to the present embodiment moves the upper binding teeth 420a and the lower binding teeth 420b in the thickness direction of the sheet bundle according to the amount of deviation. The center and the binding center are configured to be aligned.

  At this time, as shown in FIG. 22, the binding processing device 4 according to the present embodiment drives the upper binding tooth drive motor and the lower binding tooth drive motor to move the upper binding tooth movement gear 420l and the lower binding tooth movement. The upper binding teeth 420a and the lower binding teeth 420b are moved in the thickness direction of the sheet bundle via the gear 420m.

  The binding processing device 4 according to the present embodiment moves the upper binding tooth by driving the upper binding tooth driving motor and the lower binding tooth driving motor from that state when the sheet bundle center and the binding center are aligned. By moving the upper binding teeth 420a and the lower binding teeth 420b through the gear 420l and the lower binding teeth moving gear 420m at the same speed and with the same force in the thickness direction of the sheet stack, the sheet bundles are moved. Bind.

  In this way, the binding processing device 4 according to the present embodiment is configured to align the sheet bundle center and the binding center by moving the upper binding teeth 420a and the lower binding teeth 420b in the thickness direction of the sheet bundle. Therefore, there is no need to change the configuration of the stapleless binding unit 420.

  The binding processing device 4 according to the present embodiment includes separate driving sources for the upper binding teeth 420a and the lower binding teeth 420b, that is, upper binding teeth driving motors and lower binding teeth driving motors. 420a and lower binding teeth 420b may be configured to have the same drive source.

  However, when the binding processing device 4 according to the present embodiment is configured to have the same drive source for the upper binding teeth 420a and the lower binding teeth 420b, when aligning the sheet bundle center and the binding center, Although a drive source is used, in the binding process, separate drive sources are used for the upper binding teeth 420a and the lower binding teeth 420b.

  Next, another operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center will be described with reference to FIGS. 23 to 25. 23 to 25 are diagrams illustrating an operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center.

  As shown in FIGS. 23 and 24, the binding processing device 4 according to the present embodiment includes an upper binding unit 420n and a lower binding unit 420o in the stapleless binding unit 420, and the upper binding unit 420n according to the amount of displacement. By moving the lower binding unit 420o in the thickness direction of the sheet bundle, the sheet bundle center and the binding center are aligned. That is, in this embodiment, the upper binding unit 420n and the lower binding unit 420o function as a first movable part and a second movable part, respectively.

  At this time, as shown in FIG. 25, the binding processing device 4 according to this embodiment drives the upper binding unit driving motor and the lower binding unit driving motor, thereby moving the upper binding unit moving gear 420p and the lower binding unit. The upper binding unit 420n and the lower binding unit 420o are configured to move in the thickness direction of the sheet bundle via the gear 420q.

  The binding processing device 4 according to the present embodiment moves the upper binding unit by driving the upper binding unit driving motor and the lower binding unit driving motor from that state when the sheet bundle center and the binding center are aligned. The sheet bundle is moved by moving the upper binding unit 420n and the lower binding unit 420o in the thickness direction of the sheet bundle so as to face each other at the same speed and with the same force via the gear 420p and the lower binding unit moving gear 420q. Bind.

  In this way, the binding processing apparatus 4 according to the present embodiment is configured to align the sheet bundle center and the binding center by moving the upper binding unit 420n and the lower binding unit 420o in the thickness direction of the sheet bundle. Therefore, it is possible to freely change the width of the binding opening according to the number of sheet bundles to be bound and the binding position.

  The binding processing device 4 according to the present embodiment includes separate drive sources for the upper and lower binding units 420n and 420o, that is, an upper binding unit drive motor and a lower binding unit drive motor. The unit 420n and the lower binding unit 420o may be configured to include the same drive source.

  However, when the upper binding unit 420n and the lower binding unit 420o are configured to have the same drive source, the binding processing device 4 according to the present embodiment is configured to align the sheet bundle center with the binding center. Although a drive source is used, in the binding process, separate drive sources are used for the upper binding unit 420n and the lower binding unit 420o.

  Next, another operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center will be described with reference to FIGS. 26 and 27. FIG. 26 and 27 are diagrams illustrating an operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center.

  As shown in FIGS. 26 and 27, the binding processing apparatus 4 according to the present embodiment includes a unit fixing portion 420r that fixes the stapleless binding unit 420, and the unit fixing portion 420r is adjusted to the thickness of the sheet bundle according to the amount of deviation. The sheet bundle center and the binding center are aligned by moving in the vertical direction. That is, in the present embodiment, the unit fixing part 420r functions as a fixing part.

  The binding processing apparatus 4 according to the present embodiment is configured to align the sheet bundle center and the binding center by moving the unit fixing portion 420r in the thickness direction of the sheet bundle as described above. There is no need to change the configuration of the binding unit 420.

  Next, another operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center will be described with reference to FIGS. 28 and 29. FIG. 28 and 29 are diagrams illustrating an operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center.

  As illustrated in FIGS. 28 and 29, the binding processing device 4 according to the present embodiment moves the sheet stacking plate 440 in the thickness direction of the sheet bundle according to the amount of deviation, thereby moving the sheet bundle center and the binding center. Are configured to align.

  Since the binding processing device 4 according to the present embodiment is configured to align the sheet bundle center with the binding center by moving the sheet stacking plate 440 in the thickness direction of the sheet bundle in this way, There is no need to change the configuration of the bindingless unit 420.

  Further, the binding processing device 4 according to the present embodiment is configured to align the sheet bundle center and the binding center by moving the sheet stacking plate 440 in the thickness direction of the sheet bundle in this way. The binding processing quality can be improved.

  Further, the binding processing device 4 according to the present embodiment is configured to align the sheet bundle center and the binding center by moving the sheet stacking plate 440 in the thickness direction of the sheet bundle in this way. Thus, the alignment accuracy of the sheet bundle can be improved.

  Next, another operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center will be described with reference to FIGS. 30 and 31. 30 and 31 are diagrams illustrating an operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center.

  As shown in FIGS. 30 and 31, the binding processing apparatus 4 according to the present embodiment has a sheet stacking plate that matches the amount of misalignment so that the binding position side end of the sheet bundle moves in the thickness direction of the sheet bundle. By changing the angle of a part of 440, the sheet bundle center and the binding center are aligned.

  Since the binding processing device 4 according to the present embodiment is configured to align the center of the sheet bundle and the binding center by changing the angle of a part of the sheet stacking plate 440 as described above, the stapleless binding unit There is no need to change the configuration of 420.

  Note that when the sheet stacking plate 440 is arranged perpendicular to or near the gravitational direction, the sheet bundle may be displaced by changing the binding position side angle. A mechanism for suppressing the deviation is required.

  However, when the binding position side of the sheet stacking plate 440 is tilted so as to be lower than the opposite side, the angle of the sheet stacking plate 440 changes due to its own weight even if the angle of the binding position changes. Since the sheet P is about to fall into the portion P, the sheet bundle is not displaced. Therefore, when the binding position side of the sheet stacking plate 440 is tilted so as to be lower than the opposite side, a mechanism for suppressing the deviation of the sheet bundle is not necessary.

  30 and 31, the binding processing apparatus 4 configured to change the angle of a part of the sheet stacking plate 440 has been described. However, the binding processing apparatus 4 according to the present embodiment is configured to perform sheet stacking. The entire angle of the plate 440 may be changed.

  Next, another operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center and the binding center will be described with reference to FIGS. 32 and 33. FIG. 32 and 33 are diagrams illustrating an operation example when the binding processing device 4 according to the present embodiment aligns the sheet bundle center with the binding center.

  As shown in FIGS. 32 and 33, the binding processing apparatus 4 according to the present embodiment stacks sheets according to the shift amount so that the binding position side end of the sheet bundle moves in parallel in the thickness direction of the sheet bundle. A part of the plate 440 is translated in the thickness direction of the sheet bundle so that the sheet bundle center and the binding center are aligned.

  Since the binding processing apparatus 4 according to the present embodiment is configured to align the sheet bundle center and the binding center by translating a part of the sheet stacking plate 440 in this manner, the stapleless binding unit 420 is configured as described above. There is no need to change the configuration.

  In addition, since the binding processing apparatus 4 according to the present embodiment is configured to align the sheet bundle center and the binding center by translating a part of the sheet stacking plate 440 in this way, the binding processing quality Can be improved.

  Note that when the sheet stacking plate 440 is arranged perpendicularly to the gravity direction or arranged in a nearly perpendicular state, the sheet bundle may be displaced by moving the binding position side in the thickness direction of the sheet bundle. For this reason, a mechanism for suppressing the deviation of the sheet bundle is required.

  However, when the binding position side of the sheet stacking plate 440 is tilted so as to be lower than the opposite side, even if the angle on the binding position side changes, the sheet bundle is moved by the weight P of the sheet stacking plate 440 due to its own weight. Therefore, the sheet bundle does not shift. Therefore, when the binding position side of the sheet stacking plate 440 is tilted so as to be lower than the opposite side, a mechanism for suppressing the deviation of the sheet bundle is not necessary.

  In the present embodiment, as described with reference to FIGS. 17 to 27, an example in which the center of the sheet bundle and the binding center are aligned by the stapleless binding unit 420, and FIGS. As described with reference to FIG. 33, the example in which the sheet stacking plate 440 is configured to align the sheet bundle center and the binding center has been described.

  When the binding processing device 4 according to the present embodiment is configured as in the former case, the sheet stacking plate 440 can be fixed unlike in the case of being configured as in the latter case. Therefore, when the binding processing device 4 according to the present embodiment is configured as in the former, it is possible to improve the alignment accuracy of the sheet bundle as compared with the case where it is configured as in the latter.

  In the present embodiment, the binding processing device 4 configured to bind the sheet bundle by pressing the sheet bundle from the thickness direction with the upper and lower binding teeth 420a and the lower binding teeth 420b has been described. In addition, the binding processing device 4 according to the present embodiment may be configured to bind the sheet bundle by other methods.

  Further, in the present embodiment, the needleless binding unit 420 has been described. However, the present invention can be similarly applied to a needled binding unit that executes a binding process (hereinafter referred to as “needle-bound”) by a binding method using a needle. It is.

  Further, the binding processing device 4 according to the present embodiment is configured such that the stapleless binding unit 420 and the stapled binding unit are arranged so as to be movable up and down in the thickness direction of the sheet bundle, and they move up and down. By doing so, you may be comprised so that needle | hook binding and needleless binding may be switched.

  Further, the binding processing device 4 according to the present embodiment is configured so that the stapleless binding unit 420 and the needle-bound binding unit are arranged so as to be movable in the sheet width direction, and they are moved in the sheet width direction. It may be configured to switch between needled binding and needleless binding.

DESCRIPTION OF SYMBOLS 1 Image forming system 2 Image forming apparatus 3 Paper feeding apparatus 4 Binding processing apparatus 5 Original reading apparatus 10 CPU
20 RAM
30 ROM
40 HDD
50 I / F
60 LCD
DESCRIPTION OF SYMBOLS 70 Operation part 80 Dedicated device 90 Bus 100 Controller 101 Main control part 102 Operation display control part 103 Input / output control part 104 Image processing part 105 Signal input control part 106 Setting information storage part 107 Drive control part 110 Display panel 120 Operation button 130 Network I / F
140 Drive unit 410 Stack unit 420 Needleless binding unit 421 Needleless binding unit movement guide rail 422 Needleless binding unit detection sensor 440 Sheet stacking plate 450 Jogger fence 470 Conveying roller

JP 2014-037310 A

Claims (10)

A binding section for binding the sheet bundle;
A sheet bundle stacking unit for stacking sheet bundles to be bound;
An operation control unit that controls an operation according to a positional relationship in the thickness direction between a sheet bundle center in the thickness direction of the stacked sheet bundle and a binding center in the thickness direction by the binding unit;
A sheet processing apparatus comprising:   The sheet processing apparatus according to claim 1, wherein the operation control unit controls the operation so that positions of the sheet bundle center and the binding center in the thickness direction are aligned.   The operation control unit controls an operation so that the binding center moves in the thickness direction so that positions of the sheet bundle center and the binding center in the thickness direction are aligned. The sheet processing apparatus according to 1 or 2. The binding portion includes a first pressing portion and a second pressing portion that are arranged to face each other in the thickness direction, and the stacked sheet bundle is pressed against the first pressing portion and the second pressing portion. Binding by pressing from the thickness direction by the part,
The operation control unit moves at least one of the first pressing unit and the second pressing unit in the thickness direction so that the positions in the thickness direction of the sheet bundle center and the binding center are aligned. The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is moved to the position. The binding portion includes a first pressing portion and a second pressing portion that are arranged to face each other in the thickness direction, and a first movable portion and a second that are arranged to face each other in the thickness direction. A movable portion, and the stacked sheet bundle is bound by pressing between the first pressing portion and the second pressing portion from the thickness direction, and binding,
The operation control unit moves at least one of the first movable part and the second movable part in the thickness direction so that the sheet bundle center and the binding center are aligned in the thickness direction. The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is moved to a position.   The operation control unit moves the binding unit in the thickness direction so that the positions of the sheet bundle center and the binding center in the thickness direction are aligned. The sheet processing apparatus according to item 1. A fixing portion for fixing the binding portion;
The operation control unit moves the fixing unit in the thickness direction so that the sheet bundle center and the binding center are aligned in the thickness direction. The sheet processing apparatus according to item 1.   The operation control unit controls an operation so that the sheet bundle center moves in the thickness direction so that positions of the sheet bundle center and the binding center in the thickness direction are aligned. Item 8. The sheet processing apparatus according to any one of Items 1 to 7.   The operation control unit moves at least a part of the sheet bundle stacking unit in the thickness direction so that positions in the thickness direction of the sheet bundle center and the binding center are aligned. Item 9. The sheet processing apparatus according to any one of Items 1 to 8.   The operation control unit changes an angle of at least a part of the sheet bundle stacking unit so that positions in the thickness direction of the sheet bundle center and the binding center are aligned. The sheet processing apparatus according to any one of 9.