JP2005335903A - Sheet processing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet processing device capable of resuming various processings for paper sheets or a bundle of sheets remaining in the device after a jam stop condition is released, following the processing status before occurrence of the jam stop, and conducting the post-processing continuously. <P>SOLUTION: The sheet processing device having sheet transporting devices 3, 22, 26, 34, 42, 44, 45 to transport the sheets or the bundle of sheets and processing devices 100 and 200 to apply the predetermined processing to the sheets or the bundle of sheets transported by the sheet transporting devices, is equipped with jam sensors 8, 13, 15, 24, 29, 35, 50, 51 to sense jamming with the sheets or the bundle of sheets, a control device to control the processing devices 100 and 200 and the sheet transporting devices so as to stop the sheet processing in conformity to the jam sensing signal given by the jam sensors, and a residual sheet processing start control device to control the processing devices 100 and 200 and the sheet transporting devices so as to resume processing the sheets or the bundle of sheets remaining in the device after the jam stop condition is released. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sheet processing apparatus capable of resuming various processes for a sheet or a sheet bundle remaining in the apparatus after a jam stop and subsequent to the process state before the jam stop. .

  When a paper jam (hereinafter referred to as jam) occurs in a paper processing apparatus that performs processing such as binding, folding, cutting and punching while conveying a paper or a bundle of paper (hereinafter simply referred to as paper), the paper processing apparatus Detects jam and stops. After that, in order to resume the processing, it is necessary to remove the paper that caused the jam.

  In a paper processing device that is connected to a copying machine, a collating machine, or the like and processes binding, folding, bending, etc., on paper after copying or collating, a jam occurs in the copying machine or collating machine that is the connection destination. In such a case, control is performed so that the apparatus is stopped after all post-processing is performed on sheets or sheet bundles remaining in the sheet processing apparatus. Since the jam occurrence location is a connected copier or collating machine, the paper that has already entered the paper processing apparatus at that time is not damaged, and processing such as binding, folding, and bending is performed as it is. This is because it is judged that it can be discharged after performing.

  Patent document 1 is mentioned as such prior art. FIG. 7 shows an intermediate stack means for stacking and stacking copies received from a copying machine in the order of acceptance, a finishing means for finishing a copy group stacked on the intermediate stack means with staples, and a finished copy group. 6 is a flowchart showing a control method when a jam occurs in a conventional bookbinding apparatus having a discharge means for discharging outside the apparatus. In FIG. 7, “RET” means returning to the beginning of the flow of the copier jam subroutine.

  In FIG. 7, even if the copier jam subroutine is entered, if there is no abnormality in the copier, the subroutine is immediately exited. When an abnormal signal such as a jam is sent from the CPU of the copier body to the CPU of the bookbinding apparatus, the flow proceeds to the next. That is, it is checked whether the counter of the inlet sensor and the counter of the intermediate stack inlet sensor match. If they do not match, the process waits until they match.

  After that, after the counters match and it is confirmed that all the copies that have entered the bookbinding apparatus have passed through the intermediate stack inlet sensor, it is counted up to an arbitrary count set in the timer 1, and then the stapler is turned on. Turn on. Next, the timer 2 corresponding to the time required for the stapling operation counts up, the discharge motor is turned on, the discharge belt is rotated, the stapled copy group is discharged, and the initial state is restored (Patent Document 1, Gazette). 3rd page, upper right column, line 8 to lower left column, line 15).

Japanese Unexamined Patent Publication No. 63-50872

  However, the above prior art relates to a case where a jam occurs in a copying machine that is a connection destination, and does not mention anything about a case where a jam occurs in the bookbinding apparatus main body instead of the connection destination. Therefore, if a jam occurs in the bookbinding apparatus, the bookbinding apparatus main body must be stopped when the jam occurs, and the processing cannot be resumed until all the remaining paper or sheet bundle in the bookbinding apparatus is removed. There was a problem.

  In recent years, with the diversification of paper or paper bundle processing, processing forms have become diverse, such as stapling, folding, cutting, and punching. Devices equipped with these functions, and devices that perform these processes, respectively. The processing is often performed using a combination of the above. Therefore, the conveyance path of the processing apparatus is inevitably long, and a plurality of sheets are simultaneously present in the processing apparatus during the processing. If a jam occurs in a processing device with such a long conveying path, it cannot be restarted unless other paper remaining in the device is removed besides the paper that caused the jam. Although the sheets other than the formed sheets are intact, they have to be removed once and supplied again to the processing apparatus, resulting in a problem that the operation becomes complicated.

  In addition, there has already been a problem that sheets that have been partially processed among a plurality of processes cannot be re-supplied into the processing apparatus and are wasted. Furthermore, there is also a problem that if the paper that can be processed continuously is removed even if it causes a jam, the processing cannot be resumed unless it is removed.

  The present invention has been made in view of such a problem. When a jam stop state is canceled after a jam stop, the sheet or sheet bundle remaining in the apparatus continues to the processing state before the jam stop. It is an object of the present invention to provide a sheet processing apparatus that can restart various processes and continue the subsequent processes.

  A sheet processing apparatus according to a first aspect of the present invention is a sheet processing apparatus having a sheet conveying apparatus that conveys a sheet or a sheet bundle and a processing apparatus that performs a predetermined process on the sheet or sheet bundle conveyed by the sheet conveying apparatus. A jam sensor that detects a jam of the paper or a bundle of paper, a control device that controls the processing device and the paper transport device to stop paper processing based on a jam detection signal from the jam sensor, and a jam stop state And a residual paper processing start control device for controlling the processing device and the paper transport device so that the processing of the paper or the paper bundle remaining in the device is resumed.

  A sheet processing apparatus according to a second invention of the present application includes a sheet conveying apparatus that conveys a sheet or a bundle of sheets, a sheet binding apparatus that binds a sheet or a sheet bundle conveyed by the sheet conveying apparatus, a sheet punching apparatus that pierces holes, and a sheet that is folded. In a sheet processing apparatus having at least one of a folding apparatus and a sheet cutting apparatus that cuts the edge of a sheet or sheet bundle, the sheet binding apparatus, the sheet punching apparatus, the sheet folding apparatus, and the sheet cutting apparatus respectively perform corresponding processes. A processing part to be performed, a paper stopping part for stopping the paper or paper bundle conveyed to the processing part, and a paper detection part for detecting the paper or paper bundle stopped at the paper stopping part. A jam sensor for detecting a jam of a sheet bundle, and each processing device and a sheet conveying device so as to stop each processing based on a jam detection signal from the jam sensor After the jammed stop state is released and the sheet or sheet bundle remaining in the apparatus is conveyed until it comes into contact with the sheet stop part of each processing apparatus and detected by the sheet detection part of each processing part Residual paper for controlling each processing device and the paper transport device so that each processing is performed on the paper or the paper bundle, and further processing is performed at a processing portion on the downstream side of the processing, and then discharged to the outside of the device. And a process start control device.

  In the first or second invention of the present application, the residual paper processing start control device is activated by opening the cover that covers the conveyance path of the sheet or sheet bundle conveyed by the sheet conveying device, removing the jam, and then closing it. It is preferable.

  In the first or second invention of the present application, the residual paper processing start control device may be activated by operating a residual paper processing start control device activation switch after removing the jam.

  In the first or second invention of the present application, the residual paper processing start control device may be activated based on a jam release signal from a jam sensor that detects a jam after removing the jam.

  In the first or second invention of the present application, it is preferable to provide a display device that displays a jam detection location when the jam detection sensor detects a jam.

  According to the sheet processing apparatus of the first invention of the present application, when the jam stop state is canceled after the jam stop, the sheet or the sheet bundle remaining in the apparatus is controlled to be processed subsequent to the process before the jam stop. As a result, residual paper is not wasted and productivity is improved. Also, even if the paper or paper bundle that caused the jam is a slight scratch, the jam stop state can be released and the residual paper processing start control device can be started after the paper is repaired. More improved.

  According to the sheet processing apparatus of the second invention of the present application, after the jam stop, when the jam stop state is released, the sheet or the sheet bundle remaining in the sheet processing apparatus is subjected to the sheet binding following the process before the jam stop, Since control can be performed so as to perform each processing such as punching, folding, and cutting, residual paper is not wasted and productivity is improved. Further, even if the paper or the sheet bundle causing the jam is slight, if the jam is stopped, the residual paper processing start control device can be activated after the jam stop state is corrected, which is wasted. Paper is reduced and productivity is improved.

  In the first or second invention of the present application, the residual paper processing start control device is activated by once opening the cover that covers the conveyance path of the paper or paper bundle conveyed by the paper conveyance device, removing the jam, and then closing it. By doing so, safety is improved.

  Further, the residual paper processing start control device is started by operating the switch for starting the residual paper processing start control device after removing the jam, thereby restarting the processing device after visual confirmation by the operator. Safety can be further improved.

  Furthermore, after removing the jam, the residual paper processing start control device is started based on a jam release signal from the jam sensor that detected the jam, thereby starting one jam sensor for jam detection and restarting. It can function as a sensor.

  In the first or second invention of the present application, by providing a display device that displays a jam detection location, it is easy for an operator to detect and release a jam, and the time required to start the residual paper processing can be shortened.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings. FIG. 1 is a side view showing a sheet processing apparatus according to an embodiment of the present invention. The sheet processing apparatus is installed adjacent to the collating machine, for example, and includes a saddle stitch bookbinding machine 100 and a cutting machine 200 connected to the saddle stitch bookbinding machine 100.

  In the saddle stitch binding machine 100, a paper binding unit 20 as a first processing unit and a paper folding unit 40 as a second processing unit are arranged in this order in the paper transport direction. The sheet binding unit 20 is provided with an entrance roller 2 that receives a bundle of sheets collated by the collating machine 1 that is a connection destination, and is provided with a carry-in belt 3 that contacts the lower side of the entrance roller 2. The carry-in belt 3 forms a paper conveyance path from the paper receiving port to the end of the paper binding unit 20. The carry-in belt 3 is supported by carry-in belt rollers 4, 5, 6 and 7 arranged at four vertices of a horizontally long rectangle in the figure, and the upper side surface supported by the carry-in belt rollers 4 and 5 is a sheet conveyance path. Become. A carry-in sensor 8 is disposed in the paper conveyance path on the downstream side of the entrance roller 2. The carry-in sensor 8 detects that a sheet bundle has been carried into the apparatus at a predetermined interval, and detects the occurrence of a jam.

  A pair of binding side joggers 9 are arranged on both sides of the downstream sheet conveyance path of the carry-in sensor 8, and the binding side joggers 9 align the width direction of the loaded sheet bundle.

  A conveyance auxiliary roller 14a and an auxiliary belt 14b are provided in the paper conveyance path sandwiched between the pair of binding side joggers 9, and a jog sensor 15 is disposed on the upstream side of the conveyance auxiliary roller 14a. The jog sensor 15 detects a jam of the sheet bundle carried into the sheet binding unit 20.

  A stitcher 10 as a sheet binding device 12 and a clincher 11 provided below the sheet conveyance path corresponding to the stitcher 10 are arranged on the sheet conveyance path downstream of the binding side jogger 9 in the sheet conveyance direction. The stitcher 10 and the clincher 11 cooperate to bind the sheet bundle with, for example, a U-shaped wire.

  A binding sensor 13 is disposed in the paper transport path on the upstream side of the paper binding device 12. The binding sensor 13 serves as both a processing part sensor and a jam detection sensor in the paper binding unit 20, and after the paper bundle has passed through the binding sensor 13 or the jog sensor 15 on the upstream side, the paper binding device 12 has a predetermined time. It is supposed to start.

  On the downstream side of the clincher 11, a flat stitching stopper 16 that is lifted onto the paper conveyance path by the solenoid to define the leading edge of the paper when the paper bundle is stapled is provided so as to be able to advance and retreat with respect to the paper conveyance path. Further, a saddle stitch stopper 17 is provided downstream of the stitcher 10 in the sheet conveyance direction at a predetermined distance from the stitcher 10. The saddle stitch stopper 17 is lifted onto the sheet conveyance path by a solenoid when the sheet bundle is saddle-stitched, and the leading edge of the sheet. Specify the part. When the solenoid is energized, the saddle stitching stopper 17 rises on the paper conveyance path, and is buried in the paper conveyance path by its own weight when the solenoid is off.

  A paper folding unit 40 is provided downstream of the paper binding unit 20. At the entrance of the sheet folding section 40, a folding section conveying belt 22 is provided, one of which is supported by the loading belt roller 5 and the other is supported by the folding section conveying roller 21 so as to be connected to the loading belt 3 of the sheet binding section 20. In addition, the sheet conveyance path is formed on the folding part conveyance belt 22. A back stopper 28 is disposed on a paper conveyance path formed by the folding part conveyance belt 22, and the back stopper 28 defines a rear end part of the paper when a folding operation is performed on the paper.

  A pair of side stitching and unloading rollers 23 are provided on the downstream side of the folding unit conveying belt 22 and function mainly when the sheets are ejected without being folded after the side stitching. A flat stitch discharge sensor 24 is provided on the upstream side of the flat stitch discharge roller 23, and the flat stitch discharge sensor 24 detects a jam of paper discharged outside the apparatus without performing a folding operation after the flat binding operation. To detect.

  A folding stopper unit 27 having a folding stopper 25 and a folding belt 26 is provided on the downstream side of the flat stitching roller 23. The folding stopper 25 defines the leading edge of the sheet when the saddle stitched sheet is folded.

  The folding stopper unit 27 is pivotable upward with the rear end portion as a fulcrum, and when the flat stitched paper is discharged out of the apparatus without performing the folding operation, the folding stopper unit 27 comes out of the paper transport path and is flat stitched. Is carried out to the side stitch stacker 30 below.

  A pair of folding rollers 31 and a pair of press rollers 32 are disposed immediately above the sheet conveyance path between the folding portion conveyance belt 22 and the side stitch discharge roller 23. A folding knife 33 is disposed below the paper conveyance path so as to correspond to these roller pairs. A fold sensor 29 is disposed on the upstream side of the fold stopper 25. The fold sensor 29 detects that a bundle of sheets has been carried in at a predetermined interval and detects the occurrence of a jam. After detecting that the sheet has been carried in by the folding sensor 29, the front end of the folding knife 33 intermittently moves up and down between the pair of folding rollers 31 after a predetermined time, and the front end is moved by the folding stopper 25 and the rear end. The folding operation is performed on the sheets defined by the back stopper 28.

  Above the press roller 32, a pair of folding discharge belts 34, which are endless belts hung on a pair of folding discharge belt rollers, are arranged so as to correspond to the press rollers 32. The sheet is conveyed so as to be sandwiched between the folding discharge belts 34 and discharged outside the apparatus. A folding / discharging sensor 35 is provided on the downstream side of the folding / discharging belt 34, and the folding / discharging sensor 35 detects that a sheet bundle has been carried out from the saddle stitch binding machine 100 and detects occurrence of a jam. To do.

  A cutting machine 200 is disposed downstream of the saddle stitch binding machine 100. A carry-in belt 42 hung on a pair of carry-in rollers 41 is disposed at the entrance of the cutting unit 60 in the cut machine 200 so as to correspond to the folding discharge belt 34 of the saddle stitch bookbinding machine 100, and is placed on the carry-in belt 42. A holding unit 43 is arranged.

  On the downstream side of the carry-in belt 42, a cut portion upper belt 44 and a cut portion lower belt 45 supported by four cut portion belt rollers 52 arranged at the apexes of the horizontally long squares are provided on the side views, A sheet conveyance path is formed so as to be sandwiched between the upper and lower belts 44 and 45 of the cutting portion. A cutting section stopper 49 is provided on the sheet conveyance path sandwiched between the cutting section upper and lower belts 44 and 45, and the cutting section stopper 49 defines a front end portion of a booklet in which sheets fed into the cutting section are bound. A paper sensor 50 is disposed on the upstream side of the cutting portion stopper 49. The paper sensor 50 detects a jam along with a processing part sensor that detects that a booklet is loaded at a predetermined time interval. Functions as a detection sensor.

  A cutting blade 46 for cutting the end portion of the booklet is provided between the cutting portion upper and lower belts 44 and 45 and the carry-in belt 42. The cutting blade 46 is composed of an upper movable blade 47 and a lower fixed blade 48. After detecting that a booklet has been carried in by the paper sensor 50, the movable blade 47 is moved after a predetermined time has elapsed. In cooperation with the fixed blade 48, the end of the booklet is cut and aligned.

  A cutting unit discharge sensor 51 is disposed on the sheet conveyance path in the vicinity of the rear end portions of the cutting unit upper belt 44 and the lower belt 45. The cutting unit discharge sensor 51 detects the occurrence of a jam in the discharge unit of the cutting machine 200.

  The saddle stitch bookbinding machine 100 and the cutting machine 200 are each provided with a control unit, and these control units are connected by communication means or the like to form an integrated control unit 101. The control unit 101 is configured by a microprocessor or the like, and is connected to various sensors and processing devices, a sheet transport device, and an operation panel 102 provided in the saddle stitch binding machine 100 and the cutting machine 200. The control unit 101 is based on information input via the operation panel 102 and signals from various sensors, the sheet binding unit 20 of the saddle stitch binding machine 100, the sheet folding unit 40, the cutting unit 60 of the cutting machine 200, and the sheet conveying device. To control the operation. Further, the saddle stitch bookbinding machine 100 and the cutting machine 200 are provided with a top cover (not shown) as an exterior, and this top cover is provided with an interlock switch that operates by opening and closing as necessary. This interlock switch is connected to the control unit 101.

  In the apparatus of the present embodiment, a portion where the binding operation is actually performed in the saddle stitch binding machine 100 is referred to as a binding portion, and a portion where the folding operation is performed is referred to as a folding portion. In addition, a portion where the cutting process is actually performed in the cutting machine 200 is referred to as a cutting portion. Reference numeral 103 denotes an arrow indicating the sheet conveyance direction.

  Next, the operation of the sheet processing apparatus according to the present embodiment having such a configuration will be described separately for a case where a cutting process is performed after a saddle stitching operation and a case where only a side stitching process is performed.

  When the cutting process is performed after the saddle stitching operation, the apparatus according to the present embodiment operates as follows. That is, a sheet conveyance path is formed by the carry-in belt 3 driven by the carry-in belt rollers 4 to 7 arranged at the apexes of the horizontally long squares in the cross-sectional view of FIG. 1 at the entrance of the sheet binding unit 20 of the saddle stitch bookbinding machine 100. To do. The carry-in belt 3 cooperates with the entrance roller 2 arranged so as to abut on the upper surface thereof, and receives and carries the sheet bundle collated by the collator 1 as a connection destination into the saddle stitch bookbinding machine 100. . At this time, the carry-in sensor 8 arranged at the entrance of the paper binding portion detects that the paper bundle is carried in at a predetermined interval, and detects if a jam occurs in the paper bundle.

  The carry-in belt 3 rotates in the counterclockwise direction in the figure with the sheet placed thereon, and conveys the sheet in the left direction in the figure. At this time, the pair of binding side joggers 9 align the width direction of the paper. Further, a jam of the paper carried into the paper binding portion is detected by the jog sensor 15 arranged on the upstream side of the auxiliary roller 14a.

  The carry-in belt 3 abuts the leading end portion of the paper to be conveyed against the saddle stitch stopper 17 protruding onto the paper conveyance path by the solenoid ON, so that the disturbance in the paper conveyance direction is made uniform. At this time, it is detected by the binding sensor 13 provided on the upstream side that the paper is carried into the paper binding portion at a predetermined interval, and if a jam occurs, this is detected.

  After a predetermined time elapses after the binding sensor 13 or the upstream-side jog sensor 15 detects that the paper has been carried in, the paper binding device 12 including the stitcher 10 and the clincher 11 is activated by an electromagnetic clutch / brake (not shown). Then, the stop is repeated, and in cooperation, for example, a U-shaped wire is used to bind a predetermined position of the sheet bundle, for example, the central portion at two locations. After completion of the sheet binding operation, the saddle stitch stopper 17 is lowered below the conveyance surface of the sheet conveyance path by the solenoid OFF, and in this state, the carry-in belt 3 and the folding part conveyance belt 22 of the sheet folding part 40 are rotated, The sheet bound by the stitcher 10 and the clincher 11 is conveyed to the sheet folding portion, and the leading end of the sheet is brought into contact with the folding stopper 25 of the stopper unit 27 to be defined. At this time, the back end of the paper is defined by the backstopper 28.

  The folding knife 33 is raised after a lapse of a predetermined time after detecting that the sheet bundle having the leading end portion and the trailing end portion thus defined is loaded by the folding portion sancer 29. The bundle advances, for example, between the pair of folding rollers 31 so as to push up the center portion of the bundle, and the sheet is folded. The folded sheet advances between the pair of folding discharge belts 34, and the discharge belt 34 discharges the folded sheets from the saddle stitch binding machine 100. At this time, the folding discharge sensor 35 provided at the discharge port detects that the paper is discharged at a predetermined interval, and if a jam occurs, this is detected.

  After the saddle stitching operation, the folded booklet is carried into the downstream cutting machine 200 and cut. In other words, the carry-in belt 42 disposed at the entrance of the cutting machine 200 intermittently rotates to accept the booklet discharged from the saddle stitch bookbinding machine 100 and convey it to the cutting site.

  The cutting unit upper belt 44 and the cutting unit lower belt 45 convey the booklet carried in the cutting machine 200 in the left direction in the drawing and position the leading end of the booklet in contact with the cutting unit stopper 49. At this time, the paper sensor 50 detects that the booklet has been carried in, and after a predetermined time has elapsed, the movable blade 47 of the cutting blade 46 is moved to cut the rear end portion of the booklet with a predetermined dimension, and end processing is performed. . After such end processing is performed, the cut portion upper and lower belts 44 and 45 rotate intermittently, and the cut booklet is discharged. At this time, the paper discharge sensor 51 provided at the discharge port detects a jam occurring in the paper discharge unit.

  On the other hand, the sheet processing apparatus according to the present embodiment operates as follows when a bundle of sheets is discharged without being saddle stitched and bound in a flat stitch. That is, the carry-in belt 3 of the saddle stitch bookbinding machine 100 conveys the received sheet bundle in cooperation with the entrance roller 2 in the left direction in the figure, similar to the saddle stitch bookbinding operation. At this time, instead of the saddle stitching stopper 17, the flat stitching stopper 16 protrudes on the paper conveyance path according to the ON state of the solenoid, and the leading edge of the paper is brought into contact with this flat stitching stopper to align the length direction of the paper. At this time, the jog sensor 15 detects that the paper has been carried in, and after a predetermined time has elapsed, the stitcher 10 and the clincher 11 cooperate to bind a predetermined position of the paper bundle, for example, the vicinity of the front end portion, at two locations with a wire. After completion of the sheet binding operation, the side stitching stopper 16 is lowered below the sheet conveyance surface by the solenoid OFF, and in this state, the carry-in belt 3 and the folding part conveyance belt 22 are intermittently rotated, and the sheets that are side-bound. The bundle is conveyed below the back stopper 28 to the flat binding roller 23.

  At this time, the back stopper 28 moves upward by an interval necessary for paper conveyance. The stopper unit 27 rotates upward with the downstream side as a fulcrum. The side-stitching roller 23 discharges the paper whose end is bound onto a side-stitching stacker 30 provided below the stopper unit 27, and the side-stitching stacker 30 receives and stacks the paper bundle.

  Next, residual paper processing start control of the paper processing apparatus according to the present embodiment will be described. FIG. 2 is a diagram illustrating a flow of a control method in the residual paper processing start control device after detecting a jam in the present embodiment until restarting the operation by releasing the jam. The control device includes various sensors, a microprocessor and an operation panel connected to the sensors.

  In FIG. 2, for example, after the processing by the paper processing apparatus of FIG. 1 is started, when a jam is detected by any sensor, the control unit 101 recognizes this and the paper binding unit 20, the paper folding unit 40, and the cutting unit 60. Stop all processing and transport. If no jam is detected, do not proceed. Accordingly, the processing at each processing site is continued. The control device for stopping paper processing is also composed of various sensors, a microprocessor and an operation panel connected to the sensors.

  After the jam stops, for example, when the top cover is opened (cover switch OFF), the jammed paper is removed, and the top cover is closed (cover switch ON), the conveyance is started and the jam stop state is released. Then, residual paper processing start control to be described later is performed. When the cover is not closed, that is, when the cover switch is not turned on, the standby state is maintained until the cover is turned on. The detection of the jam is detected by either sensor not detecting the conveyed paper for a certain period of time or if the sheet detection state continues for a certain period of time.

  FIG. 3 is a flowchart illustrating the residual paper processing start control method. In FIG. 3, when the jam stop state is released, the control unit 101 recognizes this and activates the paper transport device to transport the paper. That is, the paper transporting operation is performed until a predetermined timer count is increased after receiving the signal that the jammed state is released, or until the operator releases the hand after pressing the jog key (switch) provided on the operation panel 102. Is done and then stops. As a result, the paper stopped in the middle of the paper transport path is transported to each downstream processing site, and stops in contact with the paper stop site provided in the processing site.

  After transporting the remaining paper to the paper stop part of the paper processing part in this way, first, whether the paper sensor of the cutting part is turned on, that is, whether the paper has reached the paper stop part of the cutting part. If the paper arrives, the paper is cut and then discharged out of the machine. On the other hand, if the paper has not reached, the process proceeds to the next step.

  Next, it is detected whether or not the folding portion sensor, which is a paper detection sensor for the folding portion, is turned on, that is, whether or not the paper has reached the paper stop portion of the folding portion. After the folding process, the sheet is conveyed to the cutting unit, cut, and then discharged out of the machine. On the other hand, if the paper has not reached, the process proceeds to the next step.

  Next, it is detected whether or not the binding unit sensor, which is the paper detection sensor of the binding unit, is turned on, that is, whether or not the paper has reached the paper stop portion of the binding unit. After performing the binding process, the sheet is conveyed to the folding unit to be folded, and then conveyed to the cutting unit to be cut and then discharged outside the apparatus. On the other hand, if the paper has not reached, the residual paper processing operation is terminated.

  In this way, after performing a series of residual paper processing operations, a normal control device sequentially performs binding processing, folding processing, and cutting processing sequentially.

  According to the present embodiment, after the jam is stopped, when the jam stop state is canceled, the paper remaining in the paper processing apparatus is bound, folded, and cut following the process before the jam stop. Therefore, productivity is improved without wasting residual paper. Also, even if the paper that caused the jam is slight, if the scratch is minor, the jammed stop state can be canceled and the remaining paper processing start control device can be started after correcting it, reducing the amount of wasted paper Productivity.

  According to the present embodiment, after the jam is stopped, the jam stop state is not released unless the top cover of the paper processing apparatus is closed, so that the operator is not restarted during the jam paper removal operation, thereby ensuring safety. Can do.

  Further, according to the present embodiment, after the jam stop state is released, the paper detection in the downstream processing portion and various processing are performed in preference to the operation of the upstream processing portion, thereby remaining paper processing. After the start, paper batting at each processing site can be prevented, and the residual paper processing can be started smoothly.

  Next, modified examples of the present invention will be described. In the present invention, after the jam stop, the control unit 101 can confirm that the jam stop state release switch has been turned on by the operator, and then control can be performed to release the jam stop state. FIG. 4 is a diagram showing a flow of such a control method.

  In FIG. 4, for example, when a jam is detected by any of the sensors after the operation of the sheet processing apparatus of FIG. 1 is started, all processing and conveyance of the sheet binding unit 20, the sheet folding unit 40, and the cutting unit 60 are stopped. To be controlled. Thereafter, for example, after the top cover is opened and the jammed paper is removed by the operator, the control unit 101 confirms that the jammed stop state release button (switch) is turned on, and then residual paper processing start control is performed. . If the jam stop state release button is not turned on, the standby state is set until it is turned on.

  By controlling in this way, the residual paper processing start control is performed after the operator's final intention to cancel the jam stop state and resume paper conveyance, and the safety is further improved. .

  In the present invention, it is also possible to perform control so as to cancel the jam stop state after detecting that the jam has been canceled by the jam sensor that has detected the jam and confirming this by the control unit 101. FIG. 5 is a diagram showing a flow of such a control method.

  In FIG. 5, for example, after the operation of the paper processing apparatus of FIG. 1 is started, if any jam detection sensor detects a jam, all processing and conveyance of the paper binding unit 20, the paper folding unit 40, and the cutting unit 60 are performed. Controlled to stop. After that, for example, after the top cover is opened and the jammed paper is removed by the operator, the jam sensor that detects the jam is turned off, that is, the jam is removed. After the predetermined time elapses, residual paper processing start control is performed. By controlling in this way, the jam sensor can function as a jam detection sensor and a jam release detection sensor. When the jam detection sensor is not turned off, the jam detection sensor is in a standby state until it is turned off.

  In the present invention, after confirming that the paper has been transported at each processing portion in the residual paper processing start control, the operator can also control to start various processing operations by pressing a jog key, for example.

  FIG. 6 is a diagram showing a flow of such a control method. In FIG. 6, when the jam stop state is released, a predetermined timer count corresponding to the time until the paper stopped on the transport path is transported to the paper stop portion of each processing portion is increased, or the operator operates the operation panel. The point that the paper transport device is activated and transports the paper until the jog key provided in 102 is pressed and the hand is released is the same as in the case of FIG. The difference from FIG. 3 is that various paper processing is resumed after detecting that the remaining paper has been conveyed by the processing part sensor at various processing parts and then waiting for the switch operation by the operator, for example, pressing the jog key. It is.

By adding the residual paper processing start condition in each processing part in this way, it is possible to visually check by the operator, and a clear intention display by the operator thereafter can be used as a condition for restarting the process. Can be further improved.
In the present embodiment, the processing part of the paper processing apparatus has been described as binding, folding, and cutting parts. However, the present invention is not limited to this, and the apparatus that performs only binding, the apparatus that performs binding and folding, and the necessity. A device that performs perforation may be used. In other words, the present invention can be applied to all processes for the conveyed paper.

  After the jam stop, after the jam stop state is released, the paper processing apparatus according to the present invention can perform subsequent paper processing on the residual paper remaining in the apparatus following the processing performed before the jam stop. Is useful in various paper processing fields, particularly in the paper processing field where sheets are bound, folded, cut and the like.

1 is a side view showing a sheet processing apparatus according to an embodiment of the present invention. It is a figure which shows the flow of the control method until a jam stop state is cancelled | released after jam stop. It is a figure which shows the flow of a residual paper process start control method after the jam stop state is cancelled | released. It is a figure which shows the flow of the other control method until a jam stop state is cancelled | released after jam stop. It is a figure which shows the flow of another control method until a jam stop state is cancelled | released after jam stop. It is a figure which shows the flow of another residual paper process start control method after the jam stop state is cancelled | released. It is a figure which shows a prior art.

Explanation of symbols

1: Collating machine 2: Entrance roller 3: Carrying belt 4: Carrying belt roller 5: Carrying belt roller 6: Carrying belt roller 7: Carrying belt roller 8: Carrying sensor 9: Binding side joker 10: Stitcher 11: Clincher 12: Sheet binding device 13: Binding sensor 14a: Conveyance auxiliary roller 14b: Conveyance auxiliary belt 15: Jog sensor 16: Flat binding stopper 17: Saddle binding stopper 20: Paper binding section 21: Folding section conveying belt roller 22: Folding section conveying belt 23 : Flat stitch discharge roller 24: flat stitch discharge sensor 25: folding stopper 26: folding belt 27: stopper unit 28: back stopper 29: folding section sensor 30: flat binding stacker 31: folding roller 32: press roller 33: folding knife 34 : Folding and discharging belt 35: Folding and discharging sensor 40: Paper folding part 41: Loading row 42: carry-in belt 43: pressing unit 44: cutting unit upper belt 45: cutting unit lower belt 46: cutting blade 47: movable blade 48: fixed blade 49: cutting unit stopper 50: paper sensor 51: cutting unit discharge sensor 62: cutting Part roller 100: saddle stitch bookbinding machine 101: control unit 102: operation panel 103: arrow 200 indicating the sheet conveying direction 200: cutting machine

Claims (6)

  In a sheet processing apparatus having a sheet conveying apparatus that conveys a sheet or a sheet bundle and a processing apparatus that performs a predetermined process on the sheet or sheet bundle conveyed by the sheet conveying apparatus, a jam of the sheet or the sheet bundle is detected. A jam sensor, a control device that controls the processing device and the paper transport device to stop paper processing based on a jam detection signal from the jam sensor, and the jam sensor that remains in the device after the jam stop state is released A paper processing apparatus comprising: a residual paper processing start control device that controls the processing device and the paper transport device so as to restart processing of a paper or a paper bundle.   A sheet conveying apparatus that conveys a sheet or a sheet bundle, a sheet binding apparatus that binds a sheet or sheet bundle conveyed by the sheet conveying apparatus, a sheet punching apparatus that pierces holes, a sheet folding apparatus that folds, and an edge of a sheet or sheet bundle. In a paper processing device having at least one of paper cutting devices to be cut, the paper binding device, paper punching device, paper folding device, and paper cutting device are each conveyed to a processing part for performing a corresponding process and this processing part. A jam sensor for detecting a jam of the sheet or sheet bundle, and a sheet stop portion for stopping the incoming sheet or sheet bundle; and a sheet detection portion for detecting the sheet or sheet bundle stopped at the sheet stop portion; A control device that controls each processing device and the sheet conveying device to stop each processing based on a jam detection signal from the jam sensor; After the sheet is released, the sheet or sheet bundle remaining in the apparatus is conveyed until it comes into contact with the sheet stop portion of each processing apparatus, and is detected at the sheet detection portion of each processing section. A residual paper processing start control device for controlling each processing device and the paper transport device so that the processing is performed, and further processing is performed at a processing portion on the downstream side of the processing, and then discharged to the outside of the device. A paper processing apparatus.   The residual paper processing start control device is activated by temporarily opening a cover that covers a conveyance path of a sheet or a bundle of sheets conveyed by the sheet conveyance device, removing a jam, and then closing the cover. The sheet processing apparatus according to claim 1 or 2.   3. The paper processing apparatus according to claim 1, wherein the residual paper processing start control device is activated by operating a residual paper processing start control device activation switch after removing the jam. .   3. The paper processing according to claim 1, wherein the residual paper processing start control device is activated based on a jam release signal from a jam sensor that detects the jam after removing the jam. apparatus.   The sheet processing apparatus according to claim 1, further comprising a display device that displays a jam detection location when the jam sensor detects a jam.

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