CN113112677A

CN113112677A - Paper sheet processing apparatus

Info

Publication number: CN113112677A
Application number: CN202010949190.7A
Authority: CN
Inventors: 北内大介; 宫坂彻; 名仓彰宏
Original assignee: Hitachi Omron Terminal Solutions Corp
Current assignee: Hitachi Omron Terminal Solutions Corp
Priority date: 2019-12-25
Filing date: 2020-09-10
Publication date: 2021-07-13
Also published as: JP2021103403A; WO2021131112A1

Abstract

The invention provides a paper processing device capable of performing high-speed and high-stability gathering operation regardless of the state of paper. In order to solve the above-described problems, a paper sheet processing apparatus for processing paper sheets includes a conveyance path for conveying paper sheets by nipping the paper sheets with rollers or belts, and an impeller including a plurality of blades for collecting the paper sheets conveyed from the conveyance path, wherein a rotation axis of a nipping unit including a pair of rollers disposed at a terminal end portion of the conveyance path is parallel to a rotation axis of the impeller, and is disposed at a position different from the rotation axis of the impeller when viewed from a direction of the rotation axis of the nipping unit, and at least a part of an outline of at least one roller of the nipping unit is disposed inside a rotation outermost circumference of the blades constituting the impeller when viewed from the direction of the rotation axis of the impeller.

Description

Paper sheet processing apparatus

Technical Field

The present invention relates to a sheet processing apparatus for stacking sheets such as banknotes.

Background

The sheet processing apparatus is as follows: the sheets fed to the input unit are bundled one by a separation mechanism and conveyed to a conveying path, the type, authenticity, and the like of the sheets are identified by an identification unit provided in the conveying path, the sheets are conveyed to each storage unit based on the identification result, and then the sheets are stacked by a stacking mechanism provided in the storage unit.

As a collecting mechanism of the paper handling apparatus, there is an impeller collecting system. The impeller is composed of a base body and a plurality of blades extending outwards from the outer peripheral surface of the base body. The paper conveyed to the storage section is stored between the blades by rotating the impeller. The paper sheets accommodated between the vanes are conveyed by the impeller in a rotating manner, and then the front ends of the paper sheets abut against the stoppers, so that the paper sheets are released from between the vanes to the outside and stacked and gathered on the bottom guide.

When the release position where the sheet is released from the transport path to the space between the blades is distant from the circular region described by the tip end portions of the blades, if the rigidity of the sheet is reduced, the sheet may not be transported to the deep position between the blades. Further, with the high-speed processing of the apparatus, the paper conveyance speed becomes high, and the paper may not be conveyed to the deep position between the blades.

Patent document 1 discloses a conveyor belt including a roller provided on a side of an impeller so as to be coaxial with the impeller, and a conveyor belt provided so as to face the roller. The roller and the conveying belt are used to set the release position for releasing the paper between the blades to be more inside than the circular area described by the front end part of the blade.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2015-026118

Disclosure of Invention

Problems to be solved by the invention

However, the paper conveyed between the blades enters deep between the blades, and is positioned radially inward of the impeller. On the other hand, the roller described in patent document 1 has a larger diameter than the impeller base. Therefore, the radial position of the sheet in contact with the blade is deviated from the radial position of the sheet in contact with the roller described in patent document 1, and the sheet is forcibly deformed. This deformation increases the conveyance resistance of the sheet from the blade. The conveyance resistance is further increased as compared with the case of a sheet whose rigidity is not reduced and a sheet whose rigidity is originally deformed such as a fold, and the sheet may not be conveyed to the deep position between the blades.

Further, the force for holding the sheet between the blades is also increased by the deformation. Therefore, when the leading end of the sheet comes into contact with the stopper and is released from between the blades to the outside, a force applied to the sheet becomes large, and the leading end of the sheet may be damaged.

The invention aims to provide a paper processing device capable of performing high-speed and high-stability gathering operation regardless of the state of paper.

Means for solving the problems

The above object is achieved by a paper sheet processing apparatus comprising: a conveyance path for nipping and conveying a sheet by using a roller or a belt; and an impeller including a plurality of blades for collecting the paper conveyed from the conveyance path, wherein a rotation axis of a nip unit including a pair of rollers disposed at a terminal end of the conveyance path is parallel to a rotation axis of the impeller, and is disposed at a position different from the rotation axis of the impeller when viewed from a direction of the rotation axis of the nip unit, and at least a part of an outline of at least one roller of the nip unit is disposed inside a rotation outermost circumference of the blades constituting the impeller when viewed from the direction of the rotation axis of the impeller.

The effects of the invention are as follows.

The present invention can provide a paper sheet processing apparatus capable of performing a high-speed and highly stable stacking operation regardless of the state of paper sheets.

Drawings

Fig. 1 is a front view of a housing section as an embodiment of the present invention.

Fig. 2 is a front view of a sheet processing apparatus as one embodiment of the present invention.

Fig. 3 is a side view of a housing part as an embodiment of the present invention.

Fig. 4 is a front view of a housing as another embodiment of the present invention.

Fig. 5 is a front view of a housing as another embodiment of the present invention.

In the figure:

1-banknote handling device, 10-box, 20-input portion, 30-recognition portion, 40-storage portion, 400, 406-impeller, 401, 407-blade, 402, 408-base, 403-rotation axis, 404-stopper, 405-bottom guide, 50-reject portion, 60-conveying path switching portion, 70-conveying path, 700, 701, 702, 703, 704, 705, 715, 716, 717-roller, 706, 707, 708, 709, 718, 719, 720, 721-rotation axis, 710, 711-conveying guide, 712, 713, 714-belt, X-conveying direction, Y-direction of the tip of blade.

Detailed Description

Example 1

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 2 is a front view of the sheet processing apparatus according to the embodiment of the present invention. The sheet processing apparatus 1 shown in the figure includes: a case 10; a loading section 20 for loading sheets; a recognition unit 30 for recognizing the paper; a storage section 40 for accumulating sheets; a reject portion 50 that collects the unrecognizable sheets; a conveying path switching unit 60 for switching the conveying path; and a conveying path 70 for connecting the above parts and conveying the paper.

The sheets stacked in the input unit 20 are separated one by a separation mechanism provided in the input unit 20, and are sent to the conveyance path 70. The fed paper is recognized by the recognition unit 30, and the storage destination is determined based on a preset paper classification pattern. The conveyance path switching unit 60 performs a positioning operation so as to form a conveyance path to the determined storage destination. The sheet having passed through the recognition unit 30 is conveyed to the storage unit 40 and the reject unit 50 through the switched conveyance path. The sheets conveyed to the storage section 40 and the reject section 50 are collected into a stacked state by a collecting mechanism provided in the storage section 40 and the reject section 50.

The input unit 20 is provided with an opening through which an operator can input paper. The storage unit 40 and the reject unit 50 are provided with openings through which an operator can take out the paper.

The paper classification modes include "classification by type", "classification by posture", "classification by state", and the like. The "sort by type" is a mode of sorting into, for example, one-thousand yen notes, five-thousand yen notes, ten-thousand yen notes in the case of notes. The "posture classification" is a mode of classifying the paper according to the front and back, and the top and bottom of the paper. The "state classification" is a mode of classifying paper sheets according to states of broken, bent, dirty, and the like.

Next, the housing section 40 of the present embodiment will be described. The storage unit 40 has the same structure as the reject unit 50.

Fig. 1 shows a front view of the housing 40 and its surrounding structure, and fig. 3 shows a side view of the housing 40 and its surrounding structure.

As shown in fig. 1 and 3,

impellers

400 and 406 are provided above the housing 40. The impeller 400 includes a base 402 that rotates about a rotation shaft 403, and a plurality of blades 401 that extend outward from the outer circumferential surface of the base 402. The impeller 406 is disposed adjacent to the impeller 400 in the direction of the rotation shaft 403, and the impeller 406 is composed of a base 408 that rotates about the rotation shaft 403, and a plurality of blades 407 extending outward from the outer peripheral surface of the base 408. The number of blades 401 is the same as the number of blades 407. The base 402 and the base 408 are fixed to the rotation shaft 403 such that the blade 401 overlaps the blade 407 when viewed from the direction of the rotation shaft 403. The rotary shaft 403 is rotatably supported by a side wall, not shown.

A stopper 404 and a bottom guide 405 are provided below the storage 40. The stopper 404 is provided to be different from the

impellers

400 and 406 in the direction of the rotation shaft 403. That is, the stoppers and the rotating shaft are alternately arranged.

The bottom guide 405 is lifted upward by a spring, not shown, to a predetermined position, and is configured to be lowered by the weight of the paper when the number of sheets of paper stacked on the bottom guide 405 increases. With this configuration, even if the number of sheets to be stacked increases, the storage space can be secured. The bottom guide 405 may be fixed to the housing 10 at a predetermined position. With such a configuration, the number of components is reduced, and the cost is reduced and the size is reduced.

During the operation of the paper sheet processing apparatus 1, the

impellers

400 and 406 are rotated in the clockwise direction in fig. 1 by a drive motor, not shown, via the rotary shaft 403. The paper is conveyed between the conveying

guides

710 and 711 of the conveying path 70. The conveyed banknotes are nipped and conveyed to the storage unit 40 and released by three sets of roller pairs, i.e., a roller 700 and a roller 701, a roller 702 and a roller 703, and a roller 704 and a roller 705, which are provided at the end of the conveyance path 70 in the direction of the rotation axis 403. The

impellers

400 and 406 accommodate the discharged paper between the blades. After the paper sheets stored between the blades are transported by the

impellers

400 and 406 to rotate, the leading ends of the paper sheets come into contact with the stoppers 404, and the paper sheets are discharged from between the blades to the outside and stacked and collected on the bottom guide 405.

By providing at least one of the plurality of impellers and the pair of rollers in the direction of the rotation shaft 403, the contact point for supporting the paper conveyed to the impellers by the nip unit is increased as compared with the case where the paper is configured by one impeller and the pair of rollers, and thus resistance to the rotational moment for causing the paper to skew increases when viewed in the paper conveying direction, and the skew of the paper is suppressed.

The three roller pairs are different from the

impellers

400 and 406 in the direction of the rotation axis 403, that is, are alternately provided, and compared to a case where the three roller pairs are provided on the same plane as the

impellers

400 and 406 in the direction of the rotation axis 403, there is an effect that the three roller pairs can be brought close to the

impellers

400 and 406 when viewed from the direction of the rotation axis 403. In this way, the positions of the three sets of roller pairs as the nip unit are arranged different from the positions of the

impellers

400 and 406 in the direction of the rotation shafts 403 of the

impellers

400 and 406. In other words, the positions of the

impellers

400 and 406 are arranged in the direction of the

rotation shafts

706 and 707 of the clamp unit to be different from the positions of the clamp unit.

The roller 700, the roller 702, and the roller 704 are fixed to a rotation shaft 706, the roller 701 is fixed to a rotation shaft 707, the roller 703 is fixed to a rotation shaft 708, and the roller 705 is fixed to a rotation shaft 709. The rotation shaft 706, the rotation shaft 707, the rotation shaft 708, and the rotation shaft 709 are rotatably supported by a side wall, not shown. The roller 700, the roller 702, and the roller 704 are rotated counterclockwise in fig. 1 by a drive motor not shown via a rotation shaft 706. The

rollers

701, 703, and 705 are pressed against the opposing

rollers

700, 702, and 704 by a pressure generated by a spring, not shown. Thereby, the

rollers

701, 703, and 705 rotate together with the rotation shaft 707, the rotation shaft 708, and the rotation shaft 709 by contact with the opposing

rollers

700, 702, and 704.

By configuring the

rollers

701, 703, and 705 to be continuously rotated by the

rollers

700, 702, and 704, and configuring them with different rotation shafts such as the rotation shaft 707, the rotation shaft 708, and the rotation shaft 709, it is possible to avoid interference of the

rotation shafts

707, 708, and 709 with the

impellers

400 and 406, and it is possible to bring the three sets of rollers close to the

impellers

400 and 406 when viewed from the direction of the rotation shaft 403 with a relatively simple configuration. Even in the case of a configuration in which the

rollers

701, 703, and 705 are rotated by a drive motor, not shown, and the

rollers

700, 702, and 704 are rotated in tandem, the rotational force can be transmitted to the

different rotation shafts

707, 708, and 709 by the drive motor via a belt or a gear.

Further, the

rollers

701, 703, and 705 may be pressurized using a link mechanism that does not interfere with the

impellers

400 and 406. With this configuration, the three sets of roller pairs are brought close to the

impellers

400 and 406 when viewed from the direction of the rotation shaft 403.

The diameters and the arrangement of the

rollers

700, 701, 702, 703, 704, 705 and the

impellers

400, 406 are determined so that the

rollers

700, 701, 702, 703, 704, 705 are located on the outer peripheral side of the rotation shaft 403 and the

impellers

400, 406 are located on the outer peripheral side of the rotation shaft 706 in the radial direction of the impeller 400 when viewed from the direction of the rotation shaft 403.

For example, in fig. 1, it is understood that the

rollers

700, 701, 702, 703, 704, and 705 are arranged so that the rollers are positioned on the outer circumferential side of the rotation shaft 403 in the radial direction as viewed from the direction of the rotation shaft 403, and the rotation shaft 706 is positioned away from the outermost rotation circle P of the

impellers

400 and 406 shown by the dotted lines.

In other words, the rotation axes 706 and 707 of the pinching units constituted by the pair of

rollers

700, 701, 702, 703, 704, and 705 disposed at the terminal end portion of the conveying path 70 are parallel to the rotation axis 403 of the impeller 400, and are disposed at positions different from the rotation axis 403 of the impeller 400 when viewed from the direction of the rotation axes 706 and 707 of the pinching units, and at least a part of the outline of at least one of the

rollers

700, 702, 704 or 701, 703, and 705 of the pinching units is disposed inside the rotation outermost circumference P of the

blades

401 and 407 constituting the

impellers

400 and 406 when viewed from the direction of the rotation axis 403 of the impeller 400.

The outer line of the clamp unit is arranged on the outer circumference side of the rotation shaft 403 of the

impeller

400, 406 in the radial direction of the

impeller

400, 406 when viewed from the direction of the rotation shaft 403 of the

impeller

400, 406.

With such a configuration, the rotation shaft 403 is inserted through the

impellers

400 and 406, and the rotation shaft 706 is inserted through the

rollers

700, 702, and 704, so that the rotation force can be transmitted to the

impellers

400 and 406 and the

rollers

700, 702, and 704 with a relatively simple configuration. The

impellers

400 and 406 and the

rollers

700, 702, and 704 form different rotating shafts, and the rotational force can be transmitted to the rotating shafts by the driving motor via a belt or a gear.

As shown in fig. 4, the paper conveyance direction X, which is a tangent line at the nip point between the pair of rollers provided at the outermost end of the conveyance path 70, may be configured to be substantially the same as the direction Y of the leading ends of the

blades

401 and 407, as viewed from the direction of the rotation axis 403. For example, in fig. 4, it is understood that the paper is disposed so that the positional relationship between the paper transport direction X and the direction Y of the leading end of the

blade

4011 or 4017 whose leading end is closest to the nip point among the

blades

401 and 407 is substantially the same horizontal direction.

In the case of the above configuration, when the

blades

401 and 407 collide with the sheet, the reaction force that the sheet receives from the

blades

401 and 407 is reduced, and there is an effect of preventing buckling, damage, and the like of the sheet. Further, if the longitudinal bending of the sheet is prevented, the sheet can be stably conveyed between the blades.

As shown in fig. 5, one of the final clamping units may be formed of a belt. In the conveyance path 70, rollers 715, 716, 717 upstream of the

rollers

700, 702, 704 are fixed to a rotary shaft 718. The rotary shaft 718 is rotatably supported by a side wall, not shown. The roller 700 is fixed to the rotation shaft 719, the roller 702 is fixed to the rotation shaft 720, and the roller 704 is fixed to the rotation shaft 721. The rotary shafts 719, 720, and 721 are rotatably supported by side walls, not shown.

The rollers 700 and 715 are provided with belts 712. The roller 702 and the roller 716 are provided with a belt 713. The roller 704 and the roller 717 are provided with a belt 714. The rollers 715, 716, 717 are rotated counterclockwise in fig. 5 by a not-shown drive motor via a rotation shaft 718. The belts 712, 713, 714 receive driving forces from the rollers 715, 716, 717, and thus move circularly. The

rollers

700, 702, 704 receive driving forces from the belts 712, 713, 714, and rotate in the counterclockwise direction in fig. 5 integrally with the respective rotation shafts 719, 720, 721.

In this way, the conveyance path 70 includes a nip unit including a roller 701 and a belt 712 facing the roller 701 at the end portion thereof, a rotation axis 707 of the roller 701 is parallel to the rotation axis 403 of the impeller 400 and is disposed at a position different from the rotation axis 403 of the impeller 400 when viewed from the direction of the rotation axis 707 of the roller 701, and at least a part of an outline of the roller 701 constituting the nip unit is disposed inside a rotation outermost circumference of the blade 401 constituting the impeller 400 when viewed from the direction of the rotation axis 403 of the impeller 400.

With such a configuration, even when the conveyed sheet is bent or broken and the dimension of the sheet in the conveying direction is shorter than the distance between the rotary shaft 718 and the rotary shaft 719, a conveying force is applied to the sheet from the belts 712, 713, and 714, and the conveying and collecting operation is stabilized. Further, since the

rollers

700, 702, and 704 are configured with different rotation shafts like the rotation shafts 719, 720, and 721, the interference of the rotation shafts 719, 720, and 721 with the

impellers

400 and 406 can be avoided, and the final sandwiching means can be brought close to the

impellers

400 and 406 when viewed from the direction of the rotation shaft 403 with a relatively simple configuration.

Claims

1. A sheet processing apparatus includes:

a conveyance path for nipping and conveying a sheet by using a roller or a belt; and

an impeller composed of a plurality of blades for collecting the paper conveyed from the conveying path,

the above-described sheet processing apparatus is characterized in that,

a rotary shaft of a clamping unit composed of a pair of rollers and arranged at the terminal end of the conveying path is parallel to the rotary shaft of the impeller and is arranged at a position different from the rotary shaft of the impeller when viewed from the direction of the rotary shaft of the clamping unit,

at least a part of an outline of at least one of the rollers of the nip unit is disposed inside a rotation outermost circumference of blades constituting the impeller when viewed from a direction of a rotation axis of the impeller.

2. The sheet processing apparatus according to claim 1,

the position of the clamping unit is different from the position of the impeller in the direction of the rotation axis of the impeller.

3. The sheet processing apparatus according to claim 1,

the position of the impeller is different from the position of the clamping unit in the direction of the rotation shaft of the clamping unit.

4. The sheet processing apparatus according to claim 1,

at least one of the impeller and the clamping unit is provided in plurality in the direction of the rotation axis of the impeller.

5. The sheet processing apparatus according to claim 1,

among the rollers constituting the nip unit, one roller closer to the rotation center of the impeller when viewed from the direction of the rotation axis of the nip unit is rotated by the other roller.

6. The sheet processing apparatus according to claim 1,

the outer line of the clamping unit is located on the outer circumferential side of the rotating shaft of the impeller in the radial direction of the impeller when viewed from the direction of the rotating shaft of the impeller.

7. The sheet processing apparatus according to claim 1,

the conveying direction of the clamping unit is approximately the same as the direction of the front end of the blade.

8. A sheet processing apparatus includes:

the above-described sheet processing apparatus is characterized in that,

a nip unit including a roller and a belt opposed to the roller is provided at an end portion of the conveying path,

the rotation axis of the roller is parallel to the rotation axis of the impeller and is arranged at a position different from the rotation axis of the impeller when viewed from the direction of the rotation axis of the roller,

at least a part of an outline of the roller constituting the nip unit is disposed inside a rotation outermost circumference of the blade constituting the impeller when viewed from a direction of a rotation axis of the impeller.