JP6446719B2 - Sheet separating and conveying device - Google Patents

Sheet separating and conveying device Download PDF

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JP6446719B2
JP6446719B2 JP2014014313A JP2014014313A JP6446719B2 JP 6446719 B2 JP6446719 B2 JP 6446719B2 JP 2014014313 A JP2014014313 A JP 2014014313A JP 2014014313 A JP2014014313 A JP 2014014313A JP 6446719 B2 JP6446719 B2 JP 6446719B2
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sheet
unit
conveyance
stacking
conveying
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JP2015140244A (en
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秀紀 萬
秀紀 萬
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デュプロ精工株式会社
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Description

The present invention relates to a sheet separating and conveying equipment.
As a technique for separating and conveying one sheet at a time from a sheet bundle on which a plurality of sheets are stacked, apparatuses as described in Patent Documents 1 and 2 below are known. Patent Document 1 describes a card discharge device that takes out one sheet from a stacked card and discharges it to a card stacking base. Patent Document 2 describes a technology for a form transporting apparatus that transports a form, in which a part of the form is taken into a reject stacker and then transported in a switchback manner to be discharged to a normal stacker. .
JP 2006-298637 A JP 58-31853 A
A company that sends out direct mail mainly selects a necessary sheet for each destination from a plurality of different types of sheets and encloses it in an envelope mainly manually. In the devices disclosed in Patent Documents 1 and 2, the discharge direction when separating and discharging one sheet from a plurality of cards and sheets stacked on the stacking unit is different from the sheet stacking direction of the stacking unit before separation and conveyance. It has become. In this case, the operator may have to change the direction of the sheet to a necessary direction. However, such work is very troublesome for an operator who manually fills a large amount in a short time.
The present invention has been made to solve the above problems, an object from a plurality of sheets, providing improved sheet capable separating and conveying equipment efficiency of the work of separating one sheet.
In order to achieve the above object, a sheet separating and conveying apparatus according to the present invention includes a stacking unit on which a plurality of sheets are stacked, and a sending unit that separates the sheets stacked on the stacking unit one by one and sends them to a conveying path. The sheet transported in the transport path is placed so that an operator can take out the sheet, and the sheet is transported in a switchback manner in the transport path, and is moved in the same direction as the sheet stacking direction in the stacking section. A defect is detected by a defect detection unit that detects a defect in the conveyed sheet that is provided in the middle of the conveyance path, and a defect detection unit that conveys the sheet so that the sheet is placed on the recording unit. And a notifying unit for notifying a new collection of the sheet to the reject unit when a defective sheet is newly collected by the reject unit .
The sheet separating and conveying apparatus according to the present invention includes a stacking unit on which a plurality of sheets are stacked, a sending unit that separates the sheets stacked on the stacking unit one by one and sends them to the conveying path, and conveys the conveying path. The sheet is transported in a switchback manner within the transport path, and the sheet is placed on the mounting section in the same direction as the sheet stacking direction in the stacking section. A conveyance unit in which conveyance rollers for conveying the sheet to be placed are installed , a control unit that controls the operation of the conveyance unit to convey the sheet at a predetermined timing, and the sheet is placed on the placement unit Bei example a mounting sheet detector for detecting the placement portion includes an endless belt passed over the belt rollers, and the installed mounting table in the conveying direction downstream side of the sheet by the belt , The control unit is placed Based on the detection result that there is no sheet on the mounting table by the output unit, after the sheet is conveyed while being nipped by the conveying roller of the conveying unit, the sheet released from the nip by the conveying roller is run on the loading unit. It transported one by one to the table by the belt.
Further, in the above configuration, the placement unit is provided above or below the stacking unit.
  Further, in each of the above configurations, the control unit controls the conveyance of the sheet by the conveyance unit based on an operation for starting conveyance of the sheet by the operator.
According to the sheet separating and conveying apparatus according to the present invention, a stacking unit on which a plurality of sheets are stacked, a sending unit that separates the sheets stacked on the stacking unit one by one and sends them to the conveying path, and conveying in the conveying path The sheet is transported in a switchback manner within the transport path, and the sheet is placed on the mounting section in the same direction as the sheet stacking direction in the stacking section. A conveyance unit that conveys the sheet so as to be placed, a defect detection unit that is provided in the middle of the conveyance path and detects that a defect has occurred in the conveyed sheet, and a sheet in which the defect is detected by the defect detection unit a reject unit for collecting, when the defective sheet is newly collected in the reject unit, since a notification unit for notifying a new collection of the sheet to the reject unit, a defective sheet That newly collected in the reject unit, the operator can easily grasp.
In addition, according to the sheet separating and conveying apparatus according to the present invention, the control unit that controls the operation of the conveying unit to convey the sheet at a predetermined timing, and the loading that detects that the sheet is loaded on the loading unit. e Bei a location sheet detecting portion, the mounting portion comprises an endless belt passed over the belt rollers, and a mounting table installed in the downstream side of the sheet by the belt, the control unit Based on the detection result that there is no sheet on the placement table by the placement sheet detection unit, the sheet is conveyed while being nipped by the conveyance roller of the conveyance unit, and then the sheet released from the nip by the conveyance roller is placed on the placement unit. Runode be conveyed by said belt traveling to the mounting table one by one in, the operator can take out quickly placed on the table sheet.
Further, when the placement unit is provided above or below the loading unit, the area occupied by the apparatus can be reduced.
The control unit can convey the sheet according to the pace of the operator when controlling conveyance of the sheet by the conveyance unit based on an operation of starting conveyance of the sheet by the operator.
1 is a perspective view of a sheet separating and conveying apparatus according to an embodiment of the present invention. It is a front view of the sheet separating and conveying apparatus. It is a longitudinal section of the sheet separation conveyance device. FIG. 3 is an enlarged view of a part of the opening / closing mechanism of the sheet separating and conveying apparatus and its periphery. FIG. 3 is a usage diagram of the sheet separating and conveying apparatus. FIG. 3 is a usage diagram of the sheet separating and conveying apparatus. FIG. 3 is a usage diagram of the sheet separating and conveying apparatus. FIG. 3 is a usage diagram of the sheet separating and conveying apparatus.
FIG. 1 is an external perspective view of a sheet separating and conveying apparatus according to an embodiment of the present invention. FIG. 2 is a front view of the sheet separating and supplying apparatus. FIG. 3 is a longitudinal sectional view of the sheet separating and conveying apparatus. The sheet separating and conveying apparatus 100 includes a stacking unit 2 on which a plurality of sheets are stacked in the center of the front surface of the apparatus main body 1. Behind the stacking unit 2 is provided a sending unit 6 that separates the sheets S stacked on the stacking unit 2 one by one and sends them to the conveyance path 5.
In addition, a placement unit 3 is provided below the stacking unit 2 so that the operator can take out the sheet S conveyed in the conveyance path 5. Above the stacking unit 2, a reject unit 4 that collects the sheet S when a problem occurs in the sheet conveyed through the conveyance path 5. Further, a transport unit that transports the sheet S in the transport path 5 in a switchback manner and transports the sheet S so that the sheet S is placed on the placement unit 3 in the same direction as the stacking direction of the sheets S in the stacking unit 2. 9 is provided. The stacking unit 2, the stacking unit 3, and the reject unit 4 are connected to each other by a transport path 5 at the rear of the apparatus main body 1, and the sheet S is transported by the transport unit 9 so that it can go back and forth. Further, the sheet separating and conveying apparatus 100 includes a control unit 8 that controls the operation of the entire apparatus.
The sheet S separated and conveyed in the present embodiment is, for example, a printed matter such as a leaflet, a pamphlet, or a catalog enclosed in an envelope, or a printing paper that forms each page of a booklet, an address to which an envelope is sent, a name, and others. Examples include documents with personal information, films, cards, etc. By separating and conveying the sheets S, the operator takes out only one sheet from the stack of sheets S and encloses it in an envelope, or folds only one sheet S manually or automatically, or other printed matter. It can be overlaid with other documents and booklets.
The stacking unit 2 includes a stacking base 21, an abutting member 22, a pair of regulating plates 23, and lifting means 24. The stacking table 21 can be moved up and down by the lifting means 24, and the uppermost sheet S among the plurality of sheets S stacked on the stacking table 21 comes into contact with the feeding roller 61 of the feeding unit 6. Thus, the height of the loading table 21 is adjusted. As shown in FIG. 3, the loading table 21 is inclined so that the front side is high and the rear side is low.
The abutting member 22 is abutted against the tip of the sheet S. The abutting member 22 is installed vertically at the rear of the loading table 21, and the upper part is installed slightly rearward and the lower part is slightly inclined forward. Accordingly, the loading table 21 and the abutting member 22 are arranged so as to be substantially orthogonal. The pair of restricting plates 23 come into contact with both edges in the width direction of the sheet S and restrict their positions. The pair of restricting plates 23 are erected on the loading table 21 and are movable in the left-right width direction.
The delivery unit 6 includes a delivery roller 61 and a separating member 62. A plurality of delivery rollers 61 are provided apart from each other in the width direction of the sheet S. The delivery roller 61 is preferably composed of a rubber roller in that the sheet S can be efficiently conveyed. The delivery roller 61 is connected to the delivery motor 63 via a power transmission mechanism (not shown). A plurality of the separating members 62 face the lower side of the feeding roller 61 and are spaced apart in the width direction of the sheet S, and the feeding roller 61 moves the uppermost sheet S out of the plurality of sheets S on the stacking table 21 backward. The uppermost sheet S is separated from the lower sheet S.
The placement unit 3 is a mechanism for placing the sheet S sent from the stacking unit 2 by the sending unit 6 and conveyed to the lower position via the conveyance path 5 on the front side of the apparatus main body 1. The placement unit 3 includes a placement conveyance unit 31, a placement table 32, and a placement sheet detection unit 33.
The placement conveyance unit 31 includes a rubber endless belt 311 and a pair of front and rear belt rollers 312 and 313 around which the belt 311 is stretched. As shown in FIG. 2, the belt 311 and the pair of belt rollers 312 and 313 are divided in the width direction, and a plurality of belt rollers 312 and 313 are arranged in parallel with a predetermined amount apart. The belt rollers 312 and 313 are installed on the side plates 26 and 27 of the apparatus main body 1, and are respectively fixed to rotating shafts 314 and 315 that are pivotally supported on the side plates 26 and 27. The belt 311 is installed in a state in which the belt 311 is in pressure contact with the driving roller 85 of the fifth conveyance roller 75 constituting the conveyance unit 9 from above. As the drive roller 75 rotates, the belt 311 is driven to run.
The mounting table 32 is installed in front of the mounting transport unit 31. On the mounting table 32, the sheet S that has been transported forward on the upper surface of the belt 311 of the transporting unit 31 for mounting is placed. The placement sheet detection unit 33 detects that the sheet S is placed on the placement unit 3. The placed sheet detection unit 33 includes a first detection unit 34 and a second detection unit 35. The first detection unit 34 is installed on the upstream side in the conveyance direction of the sheet S, and the second detection unit 35 is installed on the downstream side of the first detection unit 34.
The first detection unit 34 is installed in the vicinity of the rear of the belt roller 313 installed on the front side. The second detection unit 35 is installed in the vicinity of the front of the belt roller 313 and below the rear part of the mounting table 32. Each of the first detection unit 34 and the second detection unit 35 is a reflection composed of a light emitting element and a light receiving element for detecting the leading edge and the trailing edge of the sheet S when the sheet S is conveyed to the placement unit 3. Type optical sensor. The placement sheet detection unit 33 is electrically connected to the control unit 8, and the detection result is transmitted to the control unit 8.
The reject unit 4 loads the sheet S on the lower side when the sheet S is conveyed in a state where two sheets S are delivered from the stacking unit 2 or the like is conveyed, and the sheet S is not conveyed normally. It collects without sending it to the placement unit 3. The reject unit 4 includes a reject table 41 and a reject detection unit 42. The collected sheet S is placed on the reject table 41. The reject detection unit 42 detects that the defective sheet S is collected by the reject unit 4 by detecting the presence or absence of the sheet S on the reject table 41. The reject detection unit 42 includes an optical sensor that includes a light emitting element and a light receiving element. The rejection detection unit 42 is electrically connected to the control unit 8, and the detection result of the rejection detection unit 42 is transmitted to the control unit 8.
The transport unit 8 includes first to fifth transport rollers 71 to 75, a guide member 56, and first and second motors 11 and 12. The first to fifth transport rollers 71 to 75 are installed along the transport path 5 at predetermined intervals. The 1st-5th conveyance rollers 71-75 are the driving rollers 81-85 formed in large diameter, and the small diameter driven rollers 91-81 facing the driving rollers 81-84 of the 1st-4th conveyance rollers 71-74. 94.
Two sets of first conveying roller 71 and driving rollers 81 and 82 of the second conveying roller 72 arranged on the upper part transmit power such as gears and belts (not shown) to the first motor 11 provided at the upper rear part of the apparatus main body 1. It is connected through a mechanism. On the other hand, the driving rollers 83 to 85 of the third to fifth transport rollers 73 to 75 arranged in the lower part are driven by a second motor 12 provided at the rear lower part of the apparatus main body 1 such as a gear, a belt, etc. They are connected via a transmission mechanism.
A plurality of guide members 56 are arranged facing each other with a predetermined distance apart in the front-rear and top-bottom directions. Between the opposing guide members 56 is a conveyance space 57 in which the sheet S is conveyed at a predetermined speed. The transport path 5 is formed by the plurality of guide members 56.
The conveyance path 5 includes a main conveyance path 51, a loading conveyance path 52, a reject conveyance path 53, and a delivery conveyance path 54. The main transport path 51 is provided at the rear part of the apparatus main body 1. The main transport path 51 extends in the vertical direction. The placement transport path 52 is formed to be curved forward from the lower part of the main transport path 51, and connects the lower part of the main transport path 51 and the placement unit 3. The reject conveyance path 53 is formed to be curved forward from the upper part of the main conveyance path 51, and connects the upper part of the main conveyance path 51 and the reject unit 4. The delivery conveyance path 54 is installed so as to connect the rear part of the stacking unit 2 and a height position of about one third from the top of the main conveyance path 51. The delivery conveyance path 54 is inclined higher on the downstream side than on the upstream side in the delivery direction of the sheet S because the front conveyance path 54 is inclined lower and the rear is higher.
A defect detection unit that detects that a defect has occurred in the conveyed sheet is provided at an intermediate position in the conveyance path 5. The defect detection unit includes a double feed detection unit 66 and a sheet end detection unit 67. The double feed detection unit 66 and the sheet end detection unit 67 are arranged above and below the junction point between the main conveyance path 51 and the delivery conveyance path 54. The double feed detection unit 66 detects that a plurality of sheets S are conveyed while being overlapped on the conveyance path 5. The type of the double feed detection unit 66 is not particularly limited. For example, an ultrasonic sensor, a transmission type photosensor, or the like can be used. FIG. 4 shows a case where a super-transmission type acoustic wave sensor is used as the double feed detection unit 66, and a transmitter 661 and a receiver 662 are arranged to face each other via the conveyance path 5. By passing the sheet S through the conveyance space 57 between the transmitter 661 and the receiver 662, the attenuation amount when the ultrasonic wave collides with the sheet S is measured, and from this, it is possible to reliably detect double feeding. it can. In addition, it is possible to properly detect double feeding regardless of the thickness and translucency of the sheet S.
The sheet edge detection unit 67 detects the leading edge and the trailing edge of the sheet S conveyed along the conveyance path 5. Although the kind of sheet edge detection part is not specifically limited, For example, a photo sensor, a mechanical mechanism, etc. can be used. The detection result of the defect detection unit is transmitted to the control unit 8. FIG. 4 shows a case where the sheet edge detection unit 67 uses a photosensor, and the light emitting element 671 and the light receiving element 672 are arranged to face each other via the conveyance path 5. When the sheet S passes through the conveyance space 57 between the light emitting element 671 and the light receiving element 672, the light transmission is switched to light shielding, and the end of the sheet S is detected from this.
An opening / closing mechanism 7 is provided in the middle of the transport path 5. The opening / closing mechanism 7 is provided at a junction of the main conveyance path 51 and the delivery conveyance path 54. FIG. 4 shows a partially enlarged view of the opening / closing mechanism 7 and its periphery. The opening / closing mechanism 7 includes an opening / closing member 76, a swing shaft 77, an opening / closing member drive motor (not shown), and an angle detection unit (not shown). The open / close member 76 is installed in substantially the same plane as the guide member 561 installed on the front side of the main transport path 51 in the upright posture shown by the solid line. The opening / closing member 76 is slightly bent toward the rear where the lower portion 761 is on the sheet S conveying space 57 side. In addition, the upper portion 562a of the guide member 562 installed below the opening / closing member 76 so as to face the bent opening / closing member 76 lower portion 761 is slightly bent toward the front, contrary to the lower portion 761 of the opening / closing member 76. Is formed.
A substantially central portion in the vertical direction of the opening / closing member 76 is fixed to the swing shaft 77. As shown by the arrow Y in FIG. 4, the opening / closing member 76 swings back and forth as the swing shaft 77 rotates. The swing shaft 77 is pivotally supported by the left and right side plates 26 constituting the apparatus main body 1, and is connected to a power transmission mechanism (not shown) outside the right side plate 27. The power transmission mechanism is connected to an opening / closing member drive motor installed outside the right side plate 27. The angle detection unit detects whether the opening / closing member 76 is in an upright posture indicated by a solid line or an inclined posture indicated by a two-dot chain line.
As shown in FIGS. 1 and 2, an operation unit 14 and a display unit 15 are provided on the front right side of the apparatus main body 1. The operation unit 14 includes a firing pressure adjustment lever 16, a count reset button 17, and a manual operation button 18. The winding pressure adjusting lever 16 is a lever for adjusting the pressing force of the winding member 62 against the delivery roller 61. The count reset button 17 is pressed by an operator at the start of the separation and conveyance operation of the sheet S, so that the number of sheets S that have been separated and conveyed stored in the control unit 8 is reset. The manual operation button 18 is used to perform an operation for starting conveyance of the sheet S by the operator and an operation for stopping conveyance, and is also used when the operator sets the size of the sheet S.
The display unit 15 includes a count display unit 20 and a notification unit 43. The count display unit 20 displays the number of sheets S that have been separated and conveyed. The notification unit 43 includes a notification lamp 44 and a status display lamp 19. The notification unit 43 indicates that the sheet S is placed on the placement unit 3 during standby of the sheet S conveyance or during normal operation, that the sheet S is collected in the reject unit 4, a malfunction or error during conveyance. Any information about the device is notified based on the setting of the operator.
The notification lamp 44 is provided so as to protrude upward from the upper surface of the apparatus main body 1. The status display lamp 19 is composed of light emitting elements that can emit various colors such as blue, orange, and red. Each color indicates a different state, for example, blue indicates standby or normal operation, orange indicates a state where the sheet S rejected due to a failure exists, red indicates occurrence of various errors, etc. Is possible.
The operation unit 14 and the display unit 15 are electrically connected to the control unit 8. Although not shown, a power button for operating whether power is supplied to the sheet separating and conveying apparatus 100 is provided at the rear of the apparatus main body 1.
The control unit 8 is realized by a CPU, a ROM, a RAM, and the like. The control unit 8 receives the detection results transmitted from the placement sheet detection unit 33, the reject detection unit 43, the defect detection unit, and the angle detection unit. Further, the control unit 8 receives information from the operation unit 14. The control unit 8 stores various programs for separating and conveying the sheet S. The control unit 8 drives the first motor 11, the second motor 12, and the opening / closing member drive motor according to the program based on the detection results from the various detection units and the information from the operation unit 14, and displays necessary for the display unit 15. I do.
The control unit 8 counts the number of sheets S separated and conveyed one by one on the stacking table 21 and displays the counted number on the count display unit 20. Further, when receiving a signal that the count reset button 17 has been pressed by the operator, the control unit 8 resets the cumulative value of the count and sets the display of the count display unit 20 to zero.
Further, the control unit 8 performs control so as to determine whether or not a plurality of sheets S are conveyed in a continuous state based on the detection results of the leading and trailing ends of the sheet S from the sheet end detection unit 67. . At that time, the control unit 8 starts measuring the number of steps of the first motor 11 when a signal indicating that the leading end portion of the sheet S has been detected from the sheet end detection unit 67. Thereafter, the control unit 8 stores the cumulative value of the number of steps of the first motor 11 until a signal indicating that the trailing end of the sheet S has been detected is sent from the sheet end detection unit 67. And the control part 8 compares whether the memorize | stored accumulated value is below the predetermined value according to the magnitude | size of the sheet | seat S set by the operator. When the accumulated value is equal to or less than the predetermined value, the control unit 8 determines that only one sheet S is normally conveyed.
If the cumulative value of the number of steps of the first motor 11 stored in the control unit 8 is larger than the set value, the sheets S are not properly separated and are conveyed in a continuous state with almost no gap. There is a possibility. In this case, since the sheets S are continuous, the length in the transport direction of the sheet S obtained from the detection result of the sheet end detection unit 67 is longer than the actual size of the sheet S. In such a case, the control unit 8 controls the status display lamp 19 to turn on the red light emitting element and perform error display. Then, control is performed to perform an operation when the sheet S to be rejected is generated.
Further, the control unit 8 controls the operations of the sending unit 6 and the conveyance unit 9 so that the sheets S on the stacking table 21 are separated and conveyed at a predetermined timing. The predetermined timing can be selected and set from a plurality of types of patterns by the operator's selection. For example, the control unit 8 controls the conveyance of the sheet S by the conveyance unit 9 based on the detection result of the placed sheet detection unit 33. Further, the control unit 8 controls the conveyance of the sheet S by the conveyance unit 9 based on an operation for starting conveyance of the sheet S by the operator, for example, an operation of pressing the manual operation button 18.
Then, when the defective sheet S to be rejected is generated, the control unit 8 controls to perform the operation selected and set by the operator. For example, when the control unit 8 receives the detection result that the defective sheet S is collected by the reject unit 4 from the reject detection unit 42 according to the setting of the operator, the notification unit 43 collects the sheet to the reject unit 4. And the status display lamp 19 is lit in orange. Thereafter, the control unit 8 may perform control so as to temporarily interrupt the separation and conveyance operation of the sheet S by, for example, disabling the manual operation button 18. Alternatively, when the control unit 8 receives the detection result that the defective sheet S is collected by the reject unit 4 from the reject detection unit 42, the control unit 8 separates and conveys the subsequent sheet S on the stacking unit 2. It may be controlled to drive 63 and rotate the delivery roller 61 to deliver the sheet S to the conveyance path 5. Also, according to the setting of the operator, the control unit 8 receives the detection result from the reject detection unit 42 and then separates and conveys the subsequent sheet S when the operator performs an operation to start conveyance of the sheet S. It is also possible to control to start.
In the state where the control unit 8 grasps that the reject operation by the defect detection has already been performed and the sheet S exists on the reject table 41 based on the detection result from the reject detection unit 42, the separation transport operation of the sheet S is performed. If the subsequent sheet S needs to be rejected due to a failure, the control unit 8 is necessary to transport the subsequent sheet S to be rejected onto the reject table 41. The feeding motor 63 and the first motor 11 are controlled to be driven for a predetermined time set in advance. Then, the control unit 8 sends the sheet S after a predetermined time elapses from the time when the sheet S to be rejected is conveyed on the reject conveyance path 53 and the sheet S to be rejected is placed on the reject table 41. The motor 63 can be driven to control the subsequent sheet S on the stacking table 21 to be separated and conveyed.
At this time, the control unit 8 puts the sending unit 6 into a standby state at the time when the succeeding sheet S to be rejected is placed on the reject table 41, and responds to the pressing of the manual operation button 18 by the operator. Then, control may be performed so that the separation and conveyance of the subsequent sheet S on the stacking table 21 is resumed.
When the trouble of separating and conveying the sheet S occurs continuously for a predetermined number of times such as three times, some problem has occurred in any of the sheet separating and conveying devices 100 such as the conveying path 5 and the sending unit 6. there is a possibility. In this case, it may be necessary to eliminate or adjust the problem by the operator. Therefore, when either the double feed detection unit 66 or the sheet edge detection unit 67 or both of the detection results indicating the abnormality is transmitted continuously for a predetermined number of times, and the control unit 8 receives the detection result, the control unit 8 Changes the status display lamp 19 from orange indicating that a sheet S to be rejected is generated to red indicating the occurrence of an error. Further, the control unit 8 may stop driving the first motor 11 after the conveyance of the sheet S to be rejected by the first and second conveyance rollers 71 and 72 to the rejection table 41 is completed.
Next, the operation of the sheet separating and conveying apparatus 100 according to this embodiment will be described below. When an operator stacks sheets S on the stacking unit 2, presses the power button, and power supply to the sheet separating and conveying apparatus 100 is started, the control unit 8 activates the lifting / lowering unit 24, and on the stacking table 21. The stacking base 21 is raised to a position where the uppermost sheet S among the sheets S comes into contact with the delivery roller 61. Further, the status display lamp 19 is lit in blue. Then, the control unit 8 controls the opening / closing member drive motor, and controls the opening / closing member 76 to be in a tilted posture indicated by a two-dot chain line in FIG.
Thereafter, the operator operates the operation unit 14 to set the size of the sheet S. The size of the sheet S may be automatically set by installing a sheet size detection sensor in the stacking unit 2 instead of the manual setting by the operator.
Further, the operator sets the timing for separating and conveying the sheet S on the stacking table 21, the subsequent countermeasure when the trouble is detected in the conveyed sheet S, the error display, and the like. When the manual setting by the operator is not performed, the subsequent operation may be executed on the assumption that the size and operation state of the initially set general-purpose sheet S are set.
In this way, when the preparation for the sheet S separating and conveying operation is completed, the operator presses the manual operation button 18 in order to start the sheet S separating and conveying operation. Then, the control unit 8 drives the delivery motor 63. As the delivery motor 63 rotates, the delivery roller 61 rotates through the power transmission mechanism. At the same time, the control unit 8 drives the first motor 11. Accordingly, the drive rollers 81 and 82 of the first and second transport rollers 71 and 72 are rotated via the power transmission mechanism, and the driven rollers 91 and 92 are driven to rotate.
The sheet S on the stack 21 is separated from the lower sheet S among the plurality of sheets S on the stack 21 by the delivery roller 61 and the separating member 62, and the rear delivery transport path 54. Sent out. FIG. 5 shows a state where the sheet S is being sent from the delivery conveyance path 54 to the main conveyance path 51.
In FIG. 5, since the upper part 762 of the opening / closing member 76 is inclined at a predetermined angle such as about 20 to 40 degrees from the vertical direction, the sheet S is guided by the guide members 563, 564 and the opening / closing member 76 that constitute the delivery conveyance path 54. Guided and enters the rear main conveyance path 51 from the transmission conveyance path 54. The sheet S is conveyed upward along the main conveyance path 51 by the feeding roller 61 and the second conveyance roller 72 while being guided by the front and rear guide members 56.
Thereafter, the leading end of the sheet S passes through the double feed detection unit 66 installation position and further passes through the sheet end detection unit 67 installation position. Then, the sheet end detection unit 67 transmits to the control unit 8 that the leading end portion Sa of the sheet S has passed. The control unit 8 receives this signal from the sheet end detection unit 67 and starts measuring the number of steps of the first motor 11 in order to determine whether or not the length of the sheet S in the transport direction is appropriate. Further, the double feed detection unit 66 checks whether or not the sheets S are conveyed in a state where a plurality of sheets S are overlapped, and transmits the detection result to the control unit 8.
Thereafter, the leading end portion Sa of the sheet S is sent from the main transport path 51 to the reject transport path 53 by the first and second transport rollers 71 and 72. The control unit 8 stops the driving of the feeding motor 63 when the trailing edge of the sheet S is sent to the feeding conveyance path 54 by the feeding roller 61. Thereafter, the trailing edge of the sheet S leaves the delivery conveyance path 54 and is fed into the main conveyance path 51. Thereafter, the sheet S is further conveyed upward along the main conveyance path 51, the rear end portion Sb of the sheet S passes through the installation position of the double feed detection unit 66, and further passes through the installation position of the sheet end detection unit 67. FIG. 6 shows a state after the rear end portion Sb of the sheet S has passed the installation position of the sheet end detection unit 67. The sheet end detection unit 67 transmits to the control unit 8 that the rear end Sb of the sheet S has been detected.
When the detection result of the trailing edge Sb of the sheet S is received from the sheet edge detection unit 67, the control unit 8 detects the first edge Sa of the sheet S detected by the sheet edge detection unit 67 until the detection of the trailing edge Sb. It is confirmed whether the accumulated value of the number of steps of one motor 11 is equal to or less than a predetermined value corresponding to the size of the sheet S set by the operator. When the accumulated value is equal to or less than a predetermined value corresponding to the set size of the sheet S, the control unit 8 determines that the sheet S is normally separated and conveyed.
As described above, when the length of the sheet S in the conveyance direction is appropriate and the double feed detection unit 66 does not detect the double feed of the sheet S, the control unit 8 drives the opening / closing member drive motor to The swing shaft 77 is rotated counterclockwise in FIG. 4 via the transmission mechanism, and the open / close member 76 is swung so as to be in the upright posture shown by the solid line.
Then, the control unit 8 rotates the first motor 11 in the reverse direction and starts driving the second motor 12. Due to the reverse rotation of the first motor 11, the rotation directions of the first and second transport rollers 71 and 72 are reversed, and the sheet S transported upward in the main transport path 51 starts transporting downward in a switchback manner. Is done. The lower end of the leading sheet S sequentially passes through the installation position of the sheet edge detection unit 67 and the installation position of the double feed detection unit 66 and reaches the installation position of the opening / closing member 76.
At this time, as shown in FIG. 7, the opening / closing member 76 is already in a substantially upright posture, and the opening / closing member 76 is substantially flush with the guide member 561 installed on the front side of the main transport path 51. Therefore, even if the lower end Sb, which is the leading end of the sheet S, is conveyed to the installation position of the opening / closing member 76, it is smoothly moved downward without being obstructed and obstructed by contacting the upper portion 762 of the opening / closing member 76. It is conveyed to.
The opening / closing member 76 is bent slightly toward the rear where the lower portion 761 is on the sheet S conveyance space 57 side, and an upper portion 562a of a guide member 562 installed below the lower portion 761 of the bent opening / closing member 76 is provided. On the contrary, since it is bent slightly forward, the lower end portion of the sheet S comes into contact with the upper part 562a of the guide member 562 installed below the opening / closing member 76 when passing through the installation position of the opening / closing member 76. Thus, the sheet S can be properly conveyed downward without causing a jam.
By driving the second motor 12, the driving rollers 83 to 85 of the third to fifth conveying rollers 73 to 75 rotate, and the belt 311 rotates. The sheet S is transported downward by the third to fifth transport rollers 73 to 75, and the lower end portion that is the leading end of the sheet S enters the mounting transport path 52 curved from the lower part of the main transport path 51. The sheet S is changed in the transport direction to the front and sent to the placement unit 3.
When the sheet S reaches the placement unit 3, the sheet S is conveyed forward by the traveling belt 311. In the conveyance path 5, the sheet S is conveyed while being nipped by the pair of first to fourth conveyance rollers 71 to 74 facing each other, but in the loading conveyance unit 31, the sheet S is released from the nip by the pair of conveyance rollers, The sheet S is conveyed by the force fed forward by the nip between the fifth conveying roller 75 and the belt 311 and the frictional force of the rubber belt 311, and sent to the front mounting table 32.
As described above, in the loading conveyance unit 31, the sheet S is conveyed by the force conveyed by the nip between the fifth conveyance roller 75 and the belt 311 and the frictional force of the belt 311, so that the sheet S is placed on the loading table 32. The operator can quickly take out the sheet S. Further, when the operator takes out the sheet S, the sheet S is not nipped from both sides by a pair of conveying rollers or other pressing members, so that no extra force is required to extract the sheet S, thereby reducing the burden on the operator. Is possible.
The first detection unit 34 detects the leading end of the sheet S, then detects the trailing end of the sheet S, and transmits the detection result to the control unit 8. When the control unit 8 receives the detection result of the rear end portion of the sheet S from the first detection unit 34, the first and second motors 11 start from the time when the rear end portion is received until a predetermined time elapses thereafter. , 12 is continued. Then, the controller 8 stops driving the first and second motors 11 and 12 after the predetermined time has elapsed.
Thus, the control unit 8 continues to drive the first and second motors 11 and 12 until a predetermined time elapses from the time when the detection result of the trailing edge of the sheet S is received from the first detection unit 34. Thus, as shown in FIG. 8, the sheet S sent on the mounting table 32 has the rear end portion Sa of the sheet S positioned in front of the belt roller 313 on the front side of the belt 311. The front portion Sc of the sheet S is placed in a state of protruding further forward than the front end portion 321 of the placement table 32. Thus, the operator can easily grasp the front end portion of the sheet S and remove it from the mounting table 32.
Further, since the placement unit 3 is provided below the stacking unit 2, the operator can easily take out the sheet without reaching a high place.
When the sheet S is removed from the mounting table 32 by the operator, the second detection unit 35 determines that the sheet S on the stacking table 32 has been removed and the sheet S is not on the mounting table 32. 8 is transmitted. When the operator has set to send the subsequent sheet S immediately after the sheet S is removed from the mounting table 32 by the operator, the timing for separating and conveying the subsequent sheet S on the stacking table 21 is controlled. When receiving the detection result from the second detection unit 35, the unit 8 drives the feeding motor 63 and the first motor 11 and starts conveying the subsequent sheet S.
In this manner, by driving the feeding motor 63 and the first motor 11 according to the detection result from the placed sheet detection unit 33, the conveyance of the subsequent sheet S is automatically started even if there is no manual operation by the operator. And can be separated and conveyed more quickly than the sheet S.
Further, even if the sheet S is removed from the mounting table 32 by the operator, the conveyance of the subsequent sheet S is not started immediately, but is kept waiting for sending by the sending unit 6, and the operator presses the manual operation button 18. When the operator has set to start the separation and conveyance of the subsequent sheet S at this time, the control unit 8 causes the feeding motor 63 and the first motor in response to the manual operation button 18 pressed by the operator. 11 is driven to start separation and conveyance of the sheet S by the delivery unit 6. Thus, the sheet S can be conveyed according to the pace of the worker.
When the sheet S is conveyed, when the double feed detection unit 66 detects the double feed of the sheet S or based on the detection result of the sheet end detection unit 67, the first motor 11 measured by the control unit 8. Since the cumulative value of the number of steps is larger than a predetermined value corresponding to the size of the sheet S set by the operator, only one sheet S is not normally conveyed, but a plurality of sheets are conveyed in a continuous state. When it is determined that the control unit 8 is, the control unit 8 executes a reject operation described below.
That is, in the rejecting operation, the control unit 8 first controls the status display lamp 19 to change from blue indicating normal operation to orange indicating that the rejected sheet S has occurred. And the control part 8 continues the rotation in the same rotation direction as it is, without making rotation of the 1st motor 11 into a reverse direction. The control unit 8 stops driving the first motor 11 after a predetermined time has elapsed since the time when the sheet end detection unit 67 detected the trailing end of the sheet S.
Thus, the sheet S is conveyed upward along the main conveyance path 51, reaches the rejection conveyance path 53, and the conveyance direction is changed forward by the curved guide member 56. After the trailing edge of the sheet S has passed the installation position of the sheet edge detection unit 67, the sheet S is conveyed by the first and second conveyance rollers 71 and 72 for a predetermined time, so that the sheet S is transferred to the reject unit 4. Sent. In the reject unit 4, the sheet S placed on the reject table 41 is detected by the reject detection unit 42 and transmitted to the control unit 8.
As described above, since the reject unit 4 that collects the sheet S in which the defect is detected by the defect detection unit is provided, when the sheet S is separated and transported to the placement unit 3, multiple sheets S or a plurality of sheets are fed. When problems such as continuous conveyance occur, the defective sheet S can be collected in the reject unit 4 and the subsequent sheet S can be continuously conveyed. Therefore, it is only necessary to maintain the work without stopping the apparatus every time there is a problem. Thus, the work time can be shortened.
After receiving the detection result of the sheet S on the reject table 41 from the reject detection unit 42, the control unit 8 performs an operation according to the operator's setting. For example, the control unit 8 can notify the collection of the sheet S to the reject unit 4 by the notification unit 43 and can continue the state in which the state display lamp 19 is lit in orange when a failure is detected. Thus, since the notification unit 43 notifies the sheet collection to the reject unit 4 based on the detection result of the reject detection unit 42, it is easy for the operator that the defective sheet S is collected in the reject unit 4. Can grasp. Further, it is possible to prevent the sheet S from being left collected in the reject unit 4.
Thereafter, according to the setting of the operator, the control unit 8 performs control so as to temporarily interrupt the separating and conveying operation of the sheet S by making it impossible to operate the manual operation button 18 or the like. Then, when the sheet S on the reject table 41 is removed by the operator, the separating and conveying operation of the sheet S can be resumed.
Further, when only one sheet S thus rejected is generated by the setting of the operator, the operation is not immediately stopped, and the control unit 8 drives the feeding motor 62 and remains on the stacking table 21. It is possible to continue the separating and conveying operation of the subsequent sheet S.
When all the sheets S on the stacking table 21 are sent out to the transport path 5 by the sending unit 6 and placed on either the placing table 32 or the rejecting table 41, the control unit 8 performs the separating and transporting operation of the sheet S. Stop.
As described above, the sheet separating and conveying apparatus 100 includes the stacking unit 2 on which a plurality of sheets are stacked, the sending unit 6 that separates the sheets stacked on the stacking unit 2 one by one and sends them to the conveying path 5, and the conveying path 5. The sheet S transported inside is placed in a placement unit 3 on which the worker can take out the sheet S, and the sheet S is transported in a switchback manner in the transport path 5, and is the same direction as the sheet stacking direction in the stacking unit 2. And the transport unit 9 for transporting the sheet S so as to place the sheet S on the placement unit 3, the operator takes out only one sheet S from the sheet bundle on which the plurality of sheets S are stacked. However, since only one sheet can be easily taken out and the sheet S is placed on the placement unit in the same direction as the sheet stacking direction of the stacking unit, the working efficiency is improved.
In the above embodiment, the placement unit 3 of the sheet separating and conveying apparatus 100 is provided below the stacking unit 2, but is not limited thereto, and may be provided above the stacking unit, either left or right You may install in parallel. It is preferable that the mounting portion is provided above or below the loading portion in that the apparatus can be made smaller than the right and left sides.
Further, the sheet conveyance path in the conveyance path may be switched between the loading conveyance path and the reject conveyance path according to the setting of the operator. In this case, the sheet in which the defect is detected by the defect detection unit is conveyed in a switchback manner, passes through the loading conveyance path, is placed on the loading unit, and the sheet in which the defect is not detected is loaded on the conveyance roller. It is also possible to pass the reject conveyance path as it is without reversing the rotation direction, collect it at the reject section, and allow the operator to take it out.
In addition, the apparatus includes a defect detection unit that is provided in the middle of the conveyance path and detects that a defect has occurred in the conveyed sheet, and a reject unit 4 that collects the sheet in which the defect is detected by the defect detection unit. However, it is possible to adopt a configuration not including these, and to perform only the operation of separating and conveying the sheet and placing it on the placement unit. In addition, a rejection detection unit 42 that detects that a defective sheet has been collected in the rejection unit, and a notification unit 43 that notifies the collection of the sheet S to the rejection unit 4 based on the detection result of the rejection detection unit 42 are provided. However, these may not be provided.
In this manner, by driving the feeding motor 63 and the first motor 11 according to the detection result from the placed sheet detection unit 33, the conveyance of the subsequent sheet S is automatically started even if there is no manual operation by the operator. it can be, it is possible to more quickly separating and conveying the sheet S.
A placement sheet detection unit 33 that detects that the sheet S is placed on the placement unit 3 is provided, and the control unit 8 controls the sheet S by the transport unit 9 based on the detection result of the placement sheet detection unit 33. Although the conveyance is controlled, the placement sheet detection unit 33 may not be provided. In addition, when the second detection unit 35 transmits to the control unit 8 that the sheet S on the stacking table 32 has been removed and the sheet S is not on the mounting table 32, The control unit sends out the subsequent sheet S on the loading table by the sending unit immediately or after pressing the manual operation button 18 by the operator. However, the control unit is not limited to this, and the operator removes the sheet from the placing unit. It may be possible to start transporting from the stacking unit to the transporting path by the sending unit and to stand by in the transporting path before the removal. And if a control part receives the detection result that the sheet | seat on the mounting base was removed from the 2nd detection part, the drive of a 2nd motor may be restarted and a subsequent sheet | seat may be mounted on a mounting base. . Thus, the subsequent sheet can be placed on the placement table in a shorter time.
S Sheet 2 Stacking unit 3 Loading unit 4 Rejecting unit 6 Sending unit 8 Control unit 9 Conveying unit 33 Placed sheet detecting unit 42 Rejecting detecting unit 43, 431-438 Notification unit 98 Control device 99 Personal computer 100 Sheet separating and conveying device

Claims (4)

  1. A stacking unit on which a plurality of sheets are stacked;
    A sending unit that separates the sheets stacked on the stacking unit one by one and sends them to the conveyance path;
    A placement unit for placing the sheet conveyed in the conveyance path so that an operator can take out the sheet; and
    A conveyance unit that conveys the sheet in a switchback manner in the conveyance path, and conveys the sheet so as to place the sheet on the placement unit in the same direction as the sheet stacking direction in the stacking unit;
    A defect detection unit that is provided in the middle of the conveyance path and detects that a defect has occurred in the conveyed sheet;
    A reject unit for collecting a sheet in which a defect is detected by the defect detection unit;
    A sheet separating and conveying apparatus comprising: a notifying unit that notifies a new collection of a sheet to the reject unit when a defective sheet is newly collected by the reject unit.
  2. A stacking unit on which a plurality of sheets are stacked;
    A sending unit that separates the sheets stacked on the stacking unit one by one and sends them to the conveyance path;
    A placement unit for placing the sheet conveyed in the conveyance path so that an operator can take out the sheet; and
    In the conveyance path, a conveyance unit in which a sheet is conveyed in a switchback manner, and a conveyance roller that conveys the sheet so as to place the sheet on the placement unit in the same direction as the sheet stacking direction in the stacking unit,
    A control unit that controls the operation of the conveying unit to convey the sheet at a predetermined timing;
    Bei example a mounting sheet detection unit sheet placing portion detects that it is placed,
    The placement unit includes an endless belt that is stretched over a belt roller, and a placement table that is installed on the downstream side in the sheet conveyance direction by the belt ,
    The control unit conveys the sheet released from the nip by the conveyance roller after conveying the sheet while being nipped by the conveyance roller of the conveyance unit based on the detection result that there is no sheet on the placement table by the placement sheet detection unit. sheet separating and conveying apparatus you conveyed to the mounting table one by one by the belt traveling in the mounting portion.
  3. The sheet separating and conveying apparatus according to claim 1, wherein the placement unit is provided above or below the stacking unit.
  4. A control unit that controls an operation of the conveyance unit to convey the sheet at a predetermined timing, and the control unit controls conveyance of the sheet by the conveyance unit based on an operation of starting conveyance of the sheet by an operator. The sheet separating and conveying apparatus according to any one of claims 1 to 3.
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JPH03182447A (en) * 1989-12-11 1991-08-08 Canon Inc Sheet load quantity detecting device
JPH07277584A (en) * 1994-04-12 1995-10-24 Ricoh Co Ltd Discharged paper tray of image forming device
JPH11199077A (en) * 1998-01-12 1999-07-27 Fuji Xerox Co Ltd Image forming device
JP2001155210A (en) * 1999-11-26 2001-06-08 Nippon Totor Co Ltd Paper sheets reader
JP2008050117A (en) * 2006-08-25 2008-03-06 Kyocera Mita Corp Conveyance sheet stacking device, image forming device, and method of stacking and feeding conveyance sheet
JP5489596B2 (en) * 2009-08-21 2014-05-14 キヤノン株式会社 Image forming apparatus
JP2011046511A (en) * 2009-08-28 2011-03-10 Kyocera Mita Corp Image forming device
JP2011053888A (en) * 2009-09-01 2011-03-17 Sinfonia Technology Co Ltd Cash processing apparatus

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