JP2006347652A - Paper sheet processing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper sheet processing device with compact structure, in which double-fed paper sheets are removed to continue the processing of paper sheets efficiently and the processed paper sheets are easily treated. <P>SOLUTION: The paper sheet processing device comprises: a paper sheet loading table 13 loading the paper sheets thereon; a sucking and carrying device 2 for sucking and separating paper sheets 12 of a lowermost part loaded on the paper sheet loading table 13 and carrying the paper sheets 12 to the next stage; a counted paper sheet receiving means 29 the loading processed paper sheets; a transfer device 20 carrying the paper sheets 12 carried from the sucking and carrying device 2 to the counted paper sheet receiving member 29; a sensor device 21 for counting the paper sheets 12 while the transfer device 20 carries the paper sheets 12. The counted paper sheet receiving means 29 has a vibrating motor 32 for vibrating the processed paper sheets loaded thereon, and a blower duct 32 blowing sucked air, used in the sucking and carrying device 2 for sucking the paper sheets, toward the loaded paper sheets 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a paper sheet processing apparatus, and relates to a technique for feeding and processing stacked paper sheets for each paper sheet.

  Conventionally, this type of paper sheet processing apparatus has been used in printing machines, copiers, bill counters, and election ballot paper counters. There is a demand for paper feeding that can be separated for each sheet and that does not cause jamming by skew feeding.

  For example, Patent Document 1 discloses a paper sheet processing apparatus. This is a paper sheet processing apparatus that presses the front edge of stacked paper from above with pressure means, drives the transport means to feed out the paper, and feeds the paper in order from the bottom while being regulated by the regulating member. When the paper is fed out by driving, the regulating member is appropriately bent according to the quality of the paper such as the strength of the fed paper to regulate the feeding amount.

  In addition, in Patent Document 2, a sheet is stacked on the sheet stacking unit, and the lowermost sheet among the stacked sheets is sucked and transported by the suction unit of the suction transport unit, and is stacked on the sheet stacking unit. The lowermost sheet loaded on the sheet stacking unit is separated from the other sheets on the sheet stacking unit by blowing air from the front to the lower part of the sheet group. A stacking surface component having a sheet stacking surface for stacking a sheet and an inclined surface whose position with respect to the sheet stacking surface increases as it goes downstream in the sheet conveying direction, and a rear end seal member is arranged on the sheet stacking surface. is there.

  This rear end seal member keeps the rear part of the sheets stacked on the sheet stacking surface higher than the sheet stacking surface, thereby improving the sealing performance between the sheets at the rear end of the sheet and blowing air to the maximum. There is an effect of spreading uniformly between the lower sheet and the upper sheet.

  Japanese Patent Application Laid-Open No. H10-228688 discloses a stacking unit that stacks a plurality of sheets, a side regulating unit that regulates the sheet feeding direction, and a jet of air to a sheet side surface that intersects the sheet feeding direction. And a sheet feeding means for vacuum-sucking and transporting the lowermost sheet stacked on the stacking means, and supplying air in at least two directions toward the sheet side surface. One or more jetting means having jetting means, the directions of the airflows jetted by these jetting means do not intersect each other, and the sheet bundle loaded on the stacking means is one side portion along the conveying direction. The sheet is floated by blowing air with an injection means for injecting in two directions, and the lowermost sheet is vacuum-sucked by the sheet stacking means and separated and fed.

  In addition, what is described in Patent Document 4 is a suction vacuum chamber in which a preceding vacuum sheet is separated from a subsequent paper sheet among a large number of paper sheets whose holding vacuum chambers are arranged side by side on the mounting surface. The feeding belt feeds paper sheets in a direction perpendicular to the suction direction by the holding vacuum chamber. Between the loading surface and the feeding belt, the feeding belt is in the same direction as the suction direction by the holding vacuum chamber. Two holding auxiliary vacuum chambers for sucking paper sheets are arranged in parallel in the paper sheet feeding direction, while the preceding paper sheets are sucked and held in the holding vacuum chamber and fed, Paper sheets are sucked and held in either one of the holding auxiliary vacuum chambers.

Patent Document 5 describes hopper means for accumulating paper sheets to be fed, sorting means for feeding paper sheets deposited on the hopper means one by one, and paper fed by the sorting means A conveying unit that conveys the leaf along the traveling guide; a determination sensor unit that is provided in the middle of the conveying unit of the fed paper sheet and that determines the authenticity and type of the conveyed paper sheet; and a determination sensor unit In a paper sheet counting apparatus provided with a stacker impeller for feeding out the paper sheets determined in step 1, stacker means for storing paper sheets sent out from the stacker impeller, a DC motor and a stepping motor, By means of applying a reverse voltage to the DC motor and causing rapid braking, the next bill is prevented from entering the transport means following the bill not subject to counting.
JP-A-7-117882 Japanese Patent Laid-Open No. 10-167482 JP-A-9-315605 Japanese Patent Laid-Open No. 11-11712 JP 2000-259883 A

  By the way, in the conventional configuration described above, a regulating member and an air blowing means are arranged as means for preventing double feeding. However, as described in Patent Document 1, the strength of the feeding paper is low. In the configuration in which the regulating member is appropriately bent in accordance with the paper quality and the feeding amount is regulated, the edge of the regulating member is in sliding contact with the paper surface when the conveying means is driven to feed the paper, and the paper surface may be scratched. .

  Further, in Patent Documents 2 and 3, a device for blowing air that separates the lowermost sheet stacked on the sheet stacking unit from other sheets on the sheet is necessary. Since two auxiliary vacuum chambers for holding paper sheets alternately are required, there is a problem that the apparatus becomes large and that separation adjustment takes time.

  Further, in Patent Document 5, the paper sheets that have been processed are simply stacked, and the processing is stopped in the case of non-target paper sheets or multi-feeding. Therefore, when counting, it is necessary to restart the processing from the beginning. there were.

  SUMMARY OF THE INVENTION The present invention solves the above-described problems, and in a compact configuration, when a double feed of paper sheets occurs, the multi-feed paper sheets are removed without performing an erroneous process. It is an object of the present invention to provide a paper sheet processing apparatus that can perform processing on leaves continuously and efficiently and can easily handle the processed paper sheets.

  In order to solve the above-described problem, a paper sheet processing apparatus according to the first aspect of the present invention includes a paper sheet stacking unit for stacking paper sheets, and a lowermost paper sheet stacked on the paper sheet stacking unit. Adsorbing and conveying means for adsorbing and separating paper, transporting processed paper sheets to the next stage, processed paper sheet loading means for loading processed paper sheets, and processing paper sheet stacking for paper sheets conveyed from the suction conveying means And a processing unit that performs a predetermined process on the paper sheet while the paper sheet is being transported by the transporting unit, and the processed paper sheet stacking unit Vibration means for vibrating the air and air blowing means for blowing the air sucked in for suction by the suction conveying means toward the stacked paper sheets.

  According to a second aspect of the present invention, there is provided a paper sheet processing apparatus according to the present invention, wherein a paper sheet detecting means for detecting a passing paper sheet and a paper sheet are conveyed in the middle of a transport path for transporting the paper sheet by the transport means. A detaching means for detaching from the conveying path is provided, and when the paper sheet detecting means detects double feeding or chain conveying, the detaching means excludes the paper sheets from the conveying path of the conveying means, and the operation is continued.

  As described above, according to the present invention, the processed paper sheets can be easily handled by aligning the processed paper sheets by the vibration by the vibration means and the air supply by the air blowing means, and the paper sheet detection means can be overlapped. In the compact configuration, when paper feed or chain transport is detected, the paper is removed from the transport path of the transport means by the detaching means and the operation is continued. Therefore, it is possible to efficiently perform processing on paper sheets without performing the above processing.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 7, the paper sheet processing apparatus 1 has a suction conveyance device 2 that constitutes a suction conveyance means. In this suction conveyance device 2, a suction paper feed belt 3 is arranged over a drive roll 4 and a support roll 5, and a suction fan 6 and a suction chamber 7 are arranged inside the suction paper feed belt 3.

  As shown in FIG. 6, the suction chamber 7 forms a raceway surface 8 of the suction paper feed belt 3 and has an opening 9 in the raceway surface 8, and the opening 9 corresponds to the suction fan 6. The track surface 8 is formed with a recess 10 that is one step lower than the track surface 8 on the front side in the sheet transport direction following the opening 9, and the suction paper feed belt 3 forms a recess following the shape of the recess 10. While sliding on the track surface 8.

  The suction paper feeding belt 3 has a plurality of holes 11, and the suction force of the suction fan 6 acts on the paper sheets 12 on the transport surface through the holes 11. The holes 11 form a group for each paper sheet of the paper sheet 12, and a plurality of groups of holes 11 are provided in the suction paper feeding belt 3.

  Above the suction chamber 7 via the suction paper feeding belt 3, a paper sheet mounting table 13 serving as a paper sheet stacking unit for mounting the paper sheets 12 is provided. The paper sheet mounting table 13 is sucked and conveyed. On the transport surface of the apparatus 2, the rear part in the transport direction of the paper sheet 12 is separated from the suction paper feed belt 3 and held in a non-contact state.

  A bar-like spreading member 14 hangs down on the conveyance surface of the suction paper feeding belt 3 so as to be adjustable in height, in front of the paper sheet mounting table 13 in the paper sheet conveyance direction. The separating member 14 locks the paper sheet 12 in the paper sheet conveyance direction, and the position is adjusted so that the lower end is lower than the lowermost paper sheet 12 of the paper placing table 13.

  The spreading member 14 corresponds to the recess 10 of the suction conveyance device 2, and the recess 10 has a shape lower than the lower end of the spreading member 14. One or a plurality of the recesses 10 and the rolling members 14 are arranged, and in the present embodiment, a pair is arranged. Further, the suction conveyance device 2 and the paper sheet mounting table 13 hold the paper sheet 12 in an inclined state of 20 ° or more so that the front part of the paper sheet 12 in the conveyance direction is higher than the rear part in the conveyance direction. .

  A driven roller 15 a is disposed on the terminal side of the suction conveyance device 2 in the paper sheet conveyance direction, and the driven roller 15 a faces the support roll 5 disposed in front of the suction chamber 7 via the suction paper feeding belt 3. The paper sheet 12 is urged to the suction paper feeding belt 3. In the suction conveyance device 2, a portion corresponding to the sheet bundle in the suction chamber 7 forms an adsorption region, and a position away from the suction chamber 7, that is, a portion corresponding to the driven roller 15 a forms a non-adsorption region.

  A transfer device 20 as a next-stage transport means is provided at the end position of the suction transport device 2, that is, a position separated from the driven roller 15a by a predetermined distance in the paper sheet transport direction. A detection sensor device 21 serving as a paper sheet detection unit is disposed on the conveyance trajectory. The sensor device 21 is composed of an optical sensor or the like, and has a function of detecting the passing paper sheet 12 and detecting double feeding or chain conveyance.

  A control device (not shown) receives the signal output from the sensor device 21 and counts the number of passing sheets 12, and if the sensor device 21 detects double feeding, it does not count the number of passing sheets, and a reject operation described later. I do. In the present embodiment, processing performed during the conveyance path of the paper sheet 12 is performed to count the paper sheet 12, but processing such as printing can also be performed.

  The transfer device 20 constitutes a transport unit that transports paper sheets from the suction transport device 2 to a counting paper sheet receiving member 29 as a processed paper sheet stacking unit to be described later. A guide 23 is provided between the transfer roller 22 and the outer peripheral surface of the transfer roller 22, and the guide 23 is positioned on the suction paper feed belt 3 at the starting end side in the paper sheet transport direction. Driven rollers 15 a, 15 b, 15 c are arranged at a plurality of appropriate positions of the guide 23, and the driven rollers 15 a, 15 b, 15 c are in sliding contact with the suction paper feeding belt 3 or the transfer roller 22 through openings formed in the guide 23. ing.

  A reject branching member 24 that serves as a means for detaching the paper sheet 12 is disposed on the end side of the guide 23 in the sheet transporting direction. A reject paper receiving member 25 and an impeller are disposed in front of the reject branching member 24. 26 is provided. The reject branching member 24 rotates between a position for guiding the paper sheet 12 toward the reject paper receiving member 25 and a position for guiding the paper sheet 12 toward the impeller 26, and normally the paper sheet 12. Is moved to a position for guiding the sheet 12 toward the reject paper receiving member 25 when the control device instructs a reject operation.

  The impeller 26 has a plurality of blades 28 arranged at equal intervals around the hub 27. The paper sheet 12 conveyed by the transfer device 20 is received between the blades 28 and placed on the counting paper sheet receiving member 29. Invert and discharge.

  The counting paper sheet receiving member 29 constituting the processed paper sheet stacking means includes a receiving base 30 for receiving the paper sheets 12, side plates 31 disposed on both sides of the receiving base 30, and a vibration motor 32. While the paper sheet 12 held on the table 30 is vibrated, it is aligned so that one side of the paper sheet 12 is along the side plate 31.

  A blower duct 33 serving as air blowing means is disposed above the counting paper sheet receiving member 29. The blower duct 33 has a blower opening 34 that opens toward the cradle 30, and a base end side that exhausts the suction fan 6. It communicates with the side. The exhaust of the suction fan 6 is ejected through the air duct 33 toward the paper sheet 12 on the receiving table 30, and the ejected air separates the paper sheet 12 and the paper sheet 12 to promote alignment by vibration. To do.

  Hereinafter, the operation of the above-described configuration will be described. The suction conveyance device 2 adsorbs the lowermost paper sheet 12 loaded on the paper sheet mounting table 13 to the conveyance surface of the suction paper feeding belt 3 by the suction force of the suction fan 6 acting through the hole 11 of the suction paper feeding belt 3. Then, the paper sheet 12 is separated from the paper sheet bundle and conveyed along with the movement of the suction paper feeding belt 3.

  At this time, the lowermost paper sheet 12 of the bundle of paper sheets is sucked and flattened entirely on the transport surface of the suction transport means except the rear part in the transport direction held by the paper sheet mounting table 13. The rear part in the transport direction of the paper sheet 12 changes from the non-adsorption state to the suction state when moving from the paper sheet mounting table 13 onto the transport surface.

  For this reason, separation between the lowermost paper sheet 12 of the paper sheet bundle and the adjacent paper sheet 12 thereon can be promoted to prevent double feeding. Even bills and election ballots are entirely adsorbed onto the conveyance surface of the suction paper feeding belt 3 of the suction conveyance device 2 and the conveyance force of the adsorption conveyance device 2 is applied to the entire paper sheet 12, thereby allowing the paper sheet This can prevent the occurrence of skew and jam.

  Moreover, since the paper sheet mounting table 13 and the suction conveyance device 2 hold the paper sheet 12 in an inclined state of 20 ° or more so that the front part in the conveyance direction of the paper sheet 12 is higher than the rear part in the conveyance direction, A part of the weight of the paper sheet 12 is dispersed toward the rear of the paper sheet conveyance direction, and the frictional force between the paper sheets of the stacked paper sheets 12 is reduced, thereby preventing double feeding.

  As shown in FIG. 8, the paper sheet 12 that is attracted and separated by the suction conveyance device 2 and moves in the paper sheet conveyance direction together with the suction paper feeding belt 3 is disposed at a position corresponding to the recess 10. It bends along the shape of the recess 10 while being attracted to the transport surface, and passes through the rolling member 14 while diving at the lower end of the rolling member 14. Therefore, the rolling member 14 does not slidably contact the paper surface of the paper sheet 12, and the paper surface is not scratched.

  When the suction conveyance device 2 conveys the lowermost paper sheet 12, the paper sheet 12 superposed on the lowermost paper sheet 12 maintains the flat shape without bending, thereby conveying the paper. In the direction, it is locked to the separating member 14 and double feeding is prevented.

  The paper sheet 12 passing through the separating member 14 in the recess 10 is sent out of the suction chamber 7 and is synchronously conveyed by the suction paper feeding belt 3 at a predetermined conveyance speed during suction separation while being urged by the driven roller 15a. The number of passing sheets is counted by the sensor device 21.

  The paper sheet 12 conveyed by the suction paper feeding belt 3 reaches the transfer device 20 at the next stage at a position where the paper sheet 12 is fed over a predetermined distance to a region where the suction force of the suction transport device 2 does not reach. For this reason, the paper sheet 12 is in a state where the suction force by the suction conveyance device 2 does not act, that is, a state in which the rear part in the conveyance direction of the paper sheet 12 is sent out by the driven roller 15a and the suction paper feeding belt 3 The transfer device 20 reaches the next transfer device 20 in a state in which the suction force of the suction conveyance device 2 acting on the head is reduced, that is, in a state where the area of the paper sheet 12 positioned above the suction chamber 7 is small.

  For this reason, when the transfer device 20 starts conveyance by the transfer roller 22 and the driven roller 15b, the paper sheet 12 is conveyed in synchronization with the conveyance speed of the transfer device 20 while sliding on the suction paper feeding belt 3, and jamming is performed. In order to prevent the occurrence, the paper sheet 12 can be smoothly transferred between the transfer device 20 that transports at a higher speed than the suction transport device 2 and the suction transport device 2 having a different transport speed. Even if it occurs, the increase in the degree can be suppressed.

  The paper sheet 12 passing between the driven roller 15c and the transfer roller 22 is guided by the reject branching member 24 and discharged between the blades 28 of the impeller 26. The impeller 26 reverses and discharges the paper sheet 12 on the counting paper sheet receiving member 29 by its rotation.

  By the way, when a sticky substance is interposed between the sheets 12 for some reason, or depending on environmental conditions such as humidity, the suction conveyance device 2 may simultaneously suck and double-feed a plurality of sheets 12. For this reason, the control device detects that the paper sheet 12 has been double-fed by the difference in light transmittance, or the paper sheet 12 is chain-conveyed in a continuous state and the paper sheet 12 When the state of detecting the passage continues beyond the time required for the passage of one sheet of paper 12, the reject branch member 24 is displaced toward the reject paper receiving member 25. The plurality of sheets 12 that have been double fed are guided to the reject branch member 24 from between the driven roller 15 c and the transfer roller 22 and discharged onto the reject paper receiving member 25. The control device detects that the rear end of the paper 12 to which the sensor device 21 has been fed has passed, and returns the reject branching member 24 in the direction toward the impeller 26 when a predetermined time has elapsed.

  The control device does not add the multi-fed paper sheets 12 to the count number, and the paper sheets 12 discharged onto the reject paper receiving member 25 are returned to the paper sheet mounting table 13 to be conveyed again. And counted. Therefore, it is not necessary to stop the apparatus even when double feeding occurs, and it is not necessary to return all the paper sheets to the paper sheet mounting table 13 and re-count, and only the double-fed paper sheets 12 are stored. It is only necessary to count again.

  The paper sheet 12 discharged onto the receiving tray 30 of the counting paper sheet receiving member 29 is urged so that the paper sheets 12 are separated from each other by the air ejected from the air blowing port 34, and the vibration motor 32. Are aligned so that one side is aligned with the side plate 31 under the vibration of.

The front view which shows the paper sheet processing apparatus in embodiment of this invention The perspective view which shows the paper sheet processing apparatus in the embodiment The perspective view which shows the paper sheet processing apparatus in the embodiment The perspective view which shows the paper sheet processing apparatus in the embodiment The perspective view which shows the paper sheet processing apparatus which removed the suction paper feeding belt in FIG. The perspective view which shows the suction chamber of the paper sheet processing apparatus in the embodiment The rear view which shows the paper sheet processing apparatus in the embodiment The principal part enlarged view which shows the paper sheet processing apparatus in the embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper sheet processing apparatus 2 Adsorption conveyance apparatus 3 Suction paper feed belt 4 Drive roll 5 Support roll 6 Suction fan 7 Suction chamber 8 Track surface 9 Opening part 10 Recessed part 11 Hole 12 Paper sheet 13 Paper sheet mounting base 14 Rolling member 15a, b, c Follower roller 20 Transfer device 21 Sensor device 22 Transfer roller 23 Guide 24 Reject branch member 25 Reject paper receiving member 26 Impeller 27 Hub 28 Blade 29 Count paper sheet receiving member 30 Receiving base 31 Side plate 32 Vibration motor 33 Air duct 34 Air outlet

Claims (2)

Paper sheet loading means for loading paper sheets, suction conveying means for sucking and separating the bottommost paper sheets loaded on the paper sheet loading means and conveying them to the next stage, and loaded processed paper sheets Processed paper sheet stacking means, a transport means for transporting paper sheets transported from the suction transport means to the processed paper sheet stacking means, and a paper sheet while being transported by the transport means A processing unit that performs a predetermined process, and the processed paper sheet stacking unit includes a vibration unit that vibrates the loaded processed paper sheet, and a paper sheet on which the air sucked by the suction conveyance unit for suction is stacked. A paper sheet processing apparatus comprising air blowing means for spraying onto leaves. In the middle of the conveyance path for conveying the paper sheet by the conveyance means, a paper sheet detection means for detecting the passing paper sheet and a detaching means for separating the paper sheet from the conveyance path of the conveyance means, the paper sheet detection means 2. The paper sheet processing apparatus according to claim 1, wherein when the double feeding or chain transportation is detected, the paper is removed from the transport path of the transport means by the detaching means and the operation is continued.

Images