JP4372221B1 - Paper sheet transport device - Google Patents

Abstract

The present invention provides a technique capable of improving the operating rate of a paper sheet conveying apparatus that conveys paper sheets by an air flow.
A recovery device includes a separation unit that separates a paper sheet conveyed through a blower tube and an air flow, and is disposed in the separation unit to detect the paper sheet. A paper sheet detection sensor 42, a paper sheet detection sensor 43 that is disposed on the required upstream side of the paper sheet detection sensor 42 and detects the paper sheet, and a paper sheet detection sensor 42 alone. A control unit 49 that determines that a paper jam is detected when the paper is detected by the paper sheet detection sensor 42 and the paper sheet detection sensor 43.
[Selection] Figure 8

Description

  The present invention relates to an apparatus for conveying paper sheets by an air flow.

  2. Description of the Related Art Conventionally, when a banknote is transported at a game hall or the like, a transport device that transports using a belt or a roller has been used. However, in such a transport apparatus, the entire apparatus becomes large in a game area having a large area, and the running cost for driving the belt and the rollers becomes very high.

  Then, this inventor has proposed the paper sheet conveying apparatus which conveys paper sheets, such as a banknote, using an airflow (patent document 1). According to the paper sheet conveying apparatus using such an air flow, the apparatus can be downsized and the running cost can be reduced as compared with a conveying apparatus using a belt or a roller. .

Japanese Patent No. 4130697

  The paper sheet transport technology disclosed in Patent Document 1 forms a deformed portion (bent or curved portion) at the rear end of the paper sheet in the transport direction, and applies wind pressure to the deformed portion. As a result, the paper sheet obtains a propulsive force, and the paper sheet is conveyed so as to flow in the blower pipe in a state where the deformation portion is formed. When the paper is collected in the collection device at the transport destination, the paper sheet and the air flow are separated by the separation unit, and the paper sheet is stored in the storage unit in a state where the deformed part is corrected and flattened by the correction unit. Stored.

  However, before being conveyed from the separation unit to the correction unit, the paper sheets may be separated from the air flow and stay in the separation unit. In such a case, the paper sheets that are transported subsequently overlap with each other, so that a stay group (clogging) occurs in the separation unit, and the paper sheets cannot be collected. For this reason, it is necessary to stop the operation of the paper sheet transport device and remove the staying paper sheets.

  The objective of this invention is providing the technique which can improve the operation rate of the paper sheet conveying apparatus which conveys paper sheets by an air flow.

In the paper sheet conveying device according to one embodiment of the present invention, a blower tube, a feeding device that forms a deformed portion at the rear end of the paper sheet, and sends the paper sheet into the blower tube, and a deformation of the paper sheet An air flow generator for generating an air flow for conveying paper sheets in the blower pipe by applying wind pressure to the section, and a paper sheet disposed in the terminal part of the blower pipe and conveyed in the blower pipe And a recovery device for recovering. The collection device includes a separation unit that separates the paper sheet that has been transported through the blower pipe and the air flow. Here, the paper sheet conveying device is disposed in the separation unit and is disposed on the required upstream side of the first sensor for detecting the paper sheet, and detects the paper sheet. A control unit that determines that a paper sheet is not jammed when only the first sensor is detected and the first sensor is not jammed, and that is jammed when a paper sheet is detected by the first sensor and the second sensor. And have. In addition, a long slot is formed in the air blowing tube along the paper sheet conveying direction, and the air duct is slidable along the paper sheet conveying direction, and a bracket for closing the slot is disposed. The second sensor attached to the bracket is slidable in the elongated hole.

  An effect obtained by a representative one of the inventions disclosed in the present application will be briefly described. It is possible to improve the operating rate of a paper sheet transporting apparatus that transports paper sheets by an air flow.

It is a figure for demonstrating the outline | summary of a paper sheet conveying apparatus. It is a figure for demonstrating the conveyance method of paper sheets. It is a figure for demonstrating the outline | summary of a collection | recovery apparatus. It is a top view in the state where the termination part of a blast tube and the separation part of a recovery device were connected. It is a perspective view of the termination | terminus part of a blast pipe. It is a perspective view of the principal part of a isolation | separation part. It is a figure for demonstrating a mode that paper sheets are conveyed. It is a figure for demonstrating a mode that paper sheets are conveyed. It is a figure for demonstrating a mode that paper sheets are conveyed. It is a figure for demonstrating the positional relationship of a paper sheet detection sensor. It is a side view of the ventilation pipe to which the paper sheet detection sensor which has a position adjustment function was attached. It is sectional drawing of the XX line of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiments, and the repetitive description thereof may be omitted.

(Embodiment 1)
First, a paper sheet conveying apparatus 1 as shown in FIG. 1 will be schematically described. In addition, about this paper sheet conveying apparatus 1, the technique of patent document 1 which this inventor proposed can also be referred.

  The paper sheet conveying apparatus 1 includes a blower tube 10, a feeding device 20 that forms a deformed portion at the rear end of the paper sheet and sends the paper sheet into the blower tube 10, and wind pressure on the deformed portion of the paper sheet. The air flow generating device 30 that causes the paper sheets to generate an air flow in the blower pipe 10 and the paper sheets that are transported through the blower pipe 10 are collected at the terminal portion of the blower pipe 10. And a recovery device 40 that performs the recovery. In the paper sheet conveying apparatus 1, for example, an air flow generated by an air flow generating device 30 such as a blower is circulated through a delivery pipe 31, a connecting pipe 32, a blower pipe 10, a collecting apparatus 40, and a return pipe 33. It is configured. The blower pipe 10 is formed with a bent portion 10a bent in a U shape so as to constitute a circulation path. The return pipe 33 has an external air intake 34. Thereby, external air is taken in with return air, and it blows in the ventilation pipe 10 from the airflow generator 30 again.

  In the paper sheet transport apparatus 1, a plurality of feeding apparatuses 20 are arranged at appropriate positions on the blower pipe 10. The feeding device 20 includes a bill recognition device 21 disposed on the front side of the feeding and a bending device 22 disposed on the back side and connected to the blower tube 10.

  Among them, the bending device 22 has a zigzag-shaped deformed portion 2b (a bent portion) at the rear end in the transport direction with respect to the flat portion 2a at the front end in the transport direction of the paper sheet 2 as shown in FIG. Is formed). A wind pressure from an air flow (indicated by a hatched arrow in FIG. 2) flowing in the blower pipe 10 acts on the deformed portion 2 b, and the paper sheet 2 is conveyed in the blower pipe 10. In the present embodiment, a case where the deformed portion 2b of the paper sheet 2 is formed in a zigzag shape is shown. However, the present invention is not limited to this, and the deformed portion 2b is L-shaped as long as the wind pressure of the airflow acts. Alternatively, it may be bent or curved into a round shape. That is, the bending device 22 is disposed in the feeding device 20 and deforms the rear end portion (deformation portion 2b) of the paper sheet 2 into a bent or curved shape (referred to as a bent or curved portion).

  FIG. 3 is a diagram for explaining an outline of the collection device 40. 3 schematically shows a state in which the components (apparatus) constituting the collection device 40 are arranged in the direction in which the paper sheet 2 is conveyed (the right direction in FIG. 3). . As shown in FIG. 3, the collection device 40 included in the paper sheet conveyance device 1 includes a separation unit 50, a correction unit 70, and a storage unit 90 that are sequentially arranged from the terminal end side of the blower tube 10 in the conveyance direction. It consists of The collection device 40 is detachably attached to the terminal end of the blower tube 10 and collects the paper sheet 2 conveyed through the blower tube 10.

  First, the separation unit 50 of the recovery device 40 will be described. The separation unit 50 separates the paper sheet 2 that has been transported through the blower tube 10 and the air flow that has given the driving force to the paper sheet 2. 4 is a top view of a state in which the terminal portion of the blower tube 10 and the separation unit 50 of the recovery device 40 are connected, FIG. 5 is a perspective view of the blower tube 10, and FIG. The perspective view of the principal part is shown.

  The separation unit 50 includes four sets of a transport belt 51 that is an endless belt, and a drive pulley 52 and a passive pulley 53 on which the transport belt 51 is engaged, and each extends in the transport direction (x direction). It is arranged in the recovery device 40. The four conveyor belts 51 convey the paper sheet 2 to the inside (correcting unit 70) side of the collection device 40.

  Further, the separation unit 50 has four rollers 54 at positions facing the four drive pulleys 52, respectively. The four rollers 54 are arranged to clamp the paper sheet 2 together with the four drive pulleys 52 (conveying belt 51) and send them to the correction unit 70. Thus, the drive pulley 52 and the roller 54 arranged in the collection device 40 are feed bodies that convey the conveyed paper sheet 2 to the inside of the collection device 40.

  As shown in FIG. 6, the drive pulley 52 is connected to a concentric gear 57, and the roller 54 is connected to a concentric gear 58. The gear 57 and the gear 58 are meshed with each other, and the driving pulley 52 and the roller 54 are rotated synchronously by the separation unit motor 45 (see FIG. 3) that rotationally drives the gears 57 and 58. Thereby, as shown in FIG. 7, the paper sheet 2 can be fed into the correction unit 70 while being pressed between the drive pulley 52 and the roller 54. In FIG. 7, the paper sheets 2 are hatched.

  In the present embodiment, for example, as shown in FIG. 4, paper sheets are used in front of the drive pulley 52 and the roller 54, which are feeding bodies, to determine whether the paper sheets 2 are jammed in the separation unit 50. Paper sheet detection sensors 42 and 43 for detecting 2 are disposed. The first paper sheet detection sensor 42 is disposed in the separation unit 50 at a distance D1 from the drive pulley 52 and the roller 54 to the blast pipe 10 side (upstream side). Further, the second paper sheet detection sensor 43 is a position where the distance from the driving pulley 52 and the roller 54 to the blast pipe 10 side (upstream side) is a distance D2 longer than the distance D1, and the paper sheet detection sensor 43 42 is arranged in the air blowing pipe 10 on the required upstream side. Further, the paper sheet transport device 1 includes a control unit 49 (see FIG. 7) that controls the paper sheet detection sensors 42 and 43 and the like. The sheet detection sensors 42 and 43 and the control unit 49 will be described in detail later.

  As shown in FIG. 4, the passage of the paper sheet 2 in the separation unit 50 is formed by a conveyance belt 51 and a squeegee 55 that is disposed to face the conveyance belt 51 and has a protrusion 55 a. . The squeegee 55 is attached to a guide plate 56 that is disposed from the blower tube 10 side toward the correction unit 70 side. Further, as shown in FIG. 3, the squeegee 55 is formed in a Y shape whose side surface is widened toward the inside (correcting portion 70) side, and has a protruding portion 55a at the branching position.

  As shown in FIG. 4, the separation unit 50 has a discharge port facing the conveyance belt 51 on the back side of the conveyance belt 51, and the air flow is performed so that the conveyed paper sheet 2 comes into contact with the conveyance belt 51. A discharge pipe 41 for discharging (shown by hatched arrows) is provided. A lattice plate 56 (see FIG. 6) having a plurality of openings (square holes) 56a penetrating through the space surrounded by the conveyor belt 51 which is an endless belt is disposed at the discharge port of the discharge pipe 41. Yes. By discharging the air flow through the openings 56a of the lattice plate 56, the conveyed paper sheet 2 can be brought into contact with the transport belt 51 before being separated from the air flow. The paper sheet 2 abutted against the conveyance belt 51 receives the frictional force of the conveyance belt 51, is conveyed by the conveyance belt 51, and is provided with a roller 54 and a driving pulley 52 (conveyance belt 51) arranged in front of the correction unit 70. ).

  Next, the correction part 70 of the collection | recovery apparatus 40 is demonstrated. As shown in FIG. 3, the correction unit 70 is disposed between the separation unit 50 and the storage unit 90 and corrects the deformation unit 2 b of the paper sheet 2. The correction unit 70 has four correction rollers 71. In this correction part 70, it arrange | positions through the clearance gap which can pass the paper sheet 2 between what the four correction rollers 71 adjoin. A guide plate (not shown) having an arcuate cross section is disposed so as to cover the outer periphery of each correction roller 71 so that a fixed space is formed between the correction roller 71 and the outer peripheral surface.

  When the paper sheet 2 is detected by the inlet sensor 44 disposed at the inlet of the correction unit 70, the separation unit motor 45 is stopped, and the correction unit motor 46 is driven to rotate the four correction rollers 71. . The rotation shafts of the correction unit motor 46, which is a drive motor for driving the correction rollers 71, and the gears fixed to the respective rotation shafts of the four correction rollers 71 are sequentially meshed so that each adjacent correction roller 71 is engaged. They are rotated in opposite directions. As a result, the paper sheet 2 that has entered between the correction rollers 71 is conveyed in a zigzag shape and is sequentially bent in the reverse direction, and the bending (deformation) is corrected and sent to the inlet side of the storage unit 90. When the end of the paper sheet 2 is detected by the end detection switch 47, the correction unit motor 46 is stopped. In addition, the inlet sensor 44 can be omitted depending on the situation such as when the distance between the drive pulley 52 or the roller 54 and the end detection switch 47 is short.

  Next, the storage part 90 of the collection | recovery apparatus 40 is demonstrated. The storage unit 90 stores the paper sheet 2 in an expanded state (flat state) after the deformation of the deformation unit 2 b is corrected by the correction unit 70. As shown in FIG. 3, a terminal detection switch 47 is disposed at the entrance of the storage unit 90. The end detection switch 47 uses a photo interrupter. The conveyed paper sheet 2 pushes the lever, and the photo interrupter reacts at the tip of the lever.

  Further, a press plate 91 that can be moved by the storage unit motor 48 and a receiving plate (not shown) that receives the paper sheet 2 are disposed in the storage unit 90. When the paper sheet 2 is carried into the storage unit 90 and the end detection switch 47 detects that the end of the paper sheet 2 has passed, the storage unit motor 48 is driven. By driving the storage motor 48, the press plate 91 moves toward the receiving plate, and the paper sheet 2 is pressed and stored between the press plate 91 and the receiving plate.

  By the way, in such a recovery device 40, the frictional force of the transport belt 51 of the separation unit 50 may not be sufficiently obtained, and the transported paper sheet 2 is separated from the air flow to drive the pulley 52 and the roller. 54 may not be delivered. In this case, as shown in FIGS. 8 and 9, the paper sheet 2 (hatched) stays near the middle of the conveyance belt 51. Further, depending on the stay, the transported paper sheets 2 are sequentially overlapped to generate a stay group (clogging), which requires a large-scale restoration work (manual work) such as disassembling the collecting device 40 and the air duct 10, Thereby, the operation rate of the paper sheet conveying apparatus 1 may be lowered.

  In view of this, the paper sheet transport device 1 according to the present embodiment is disposed in the separation unit 50, and detects the paper sheet 2 and the required upstream of the paper sheet detection sensor 42. When the paper sheet 2 is detected only by the paper sheet detection sensor 43 and the paper sheet detection sensor 42 disposed on the side, the paper sheet detection sensor 42 does not determine that the paper sheet 2 is jammed. And a control unit 49 (see FIGS. 8 and 9) that determines that the paper sheet 2 is jammed when the paper sheet 2 is detected by the paper sheet detection sensor 43. In addition, when the paper sheet detection sensors 42 and 43 are, for example, a light receiving / emitting transmission type, in order to prevent displacement of the light receiving / emitting shafts, the paper sheet detection sensors 42 and 43 are arranged as a position-fixed sensor and provided with a positioning boss.

  Specifically, the first paper sheet detection sensor 42 is disposed at a position where it is possible to detect the stay of the first paper sheet 2, and the paper sheet detection sensor 43 has two or more sheets following the first stay. If the second paper sheet detection sensor 43 is installed at a position where the rear end of the paper sheet 2 in the last part of the staying group can be detected when the staying group extends backward and reaches the limit number of sheets due to the above staying. good.

  As shown in FIG. 4, the first paper sheet detection sensor 42 is disposed in a through hole 50 a formed on the side surface of the separation unit 50, and a direction (y direction) intersecting the transport direction (x direction), That is, the paper sheet 2 is detected (monitored) in the direction in which the sensor light is transmitted through the back surface of the conveyed paper sheet 2. The detection light of the paper sheet detection sensor 42 passes through one of the openings 56a (hatched square holes) of the lattice plate 56 from, for example, the side surface of the separation unit 50 shown in FIG. Moreover, it passes between the upper and lower conveyance belts 51 so as not to be blocked by the conveyance belt 51.

  Further, as shown in FIGS. 4 and 5, the second paper sheet detection sensor 43 is disposed in the through hole 10 b formed in the side surface of the blower pipe 10 and intersects the transport direction (x direction). The paper sheet 2 is detected (monitored) in the direction (y direction), that is, the direction in which the sensor light is transmitted through the back surface of the paper sheet 2 being conveyed. A through hole 10 b is formed between the ribs 11 protruding from the inner wall of the blower tube 10.

  As described above, when the paper sheet 2 is detected only by the paper sheet detection sensor 42 by arranging the two paper sheet detection sensors 42 and 43 (see FIG. 8), for example, a CPU or the like is included. The control unit 49 configured as follows can determine that the stagnation (clogging) is not serious and can be stopped only by a slight stagnation signal, so that it is not necessary to perform another operation. For example, even if the paper sheet 2 stays, the remaining paper sheet 2 is small and is detected by the first paper sheet detection sensor 42, but is not detected by the second paper sheet detection sensor 43. In the meantime, the stay is only displayed by a lamp or a display, and the sheet transport apparatus 1 continues to operate.

  In addition, by arranging the two paper sheet detection sensors 42 and 43, when the paper sheet detection sensor 42 and the paper sheet detection sensor 43 detect staying at the same time (see FIG. 9), the control unit 49 determines that the stagnation is serious (clogging) and issues a stagnation alarm, and performs necessary operations such as partial stoppage of the paper sheet transport apparatus 1. For example, when the sheet 2 stays from 3 sheets to 4 sheets or more, the operation of the storage unit 90 and the air flow from the air flow generator 30 in the sheet transport apparatus 1 are stopped. An alarm is issued during operation.

  As described above, in the paper sheet conveying apparatus 1 according to the present embodiment, the paper sheet detection sensor 42 disposed in the separation unit 50 and the required upstream side of the paper sheet detection sensor 42 are disposed. The stay limit is monitored by the paper sheet detection sensor 43 and the control unit 49 that uses these to determine whether the paper sheet 2 is jammed. By this monitoring, it is possible to reduce the number of operation stops due to staying and improve the operation rate of the paper sheet transport apparatus 1.

  Note that the paper sheet detection sensor 43 shown in FIGS. 8 and 9 is not provided, and only the paper sheet detection sensor 42 is used, and the paper sheet is detected at the position of the paper sheet detection sensor 42 (see FIGS. 8 and 9). If the clogging is not eliminated even after a certain period of time has elapsed since the class 2 stayed, a warning signal can be issued, the collection device 40 can be stopped, and the staying group (clogging) can be eliminated manually. However, this method is effective when the paper sheets 2 are continuously fed at a constant time interval. However, if the feeding time interval is irregular and random, the estimation of the number of jammed papers is not accurate. It's not appropriate.

  Hereinafter, an example of the positional relationship between the paper sheet detection sensor 42 and the paper sheet detection sensor 43 will be described with reference to FIG. In FIG. 10, the position where the drive pulley 52 and the roller 54 are disposed is indicated by a symbol A.

  FIG. 10 is a diagram for explaining the positional relationship between the paper sheet detection sensors 42 and 43, and shows three states (2A, 2B, and 2C) of the paper sheet 2 staying in the blower tube 10 and the separation unit 50. Has been. Here, the paper sheet 2 </ b> A is the paper sheet 2 that is transported and stays first in the separation unit 50, and the paper sheet 2 </ b> B is the last paper sheet that stays without being related to the paper sheet detection sensor 43. The paper sheet 2 </ b> C is a paper sheet 2 that stays in association with the paper sheet detection sensor 43.

  First, the average staying position of the paper sheet 2 is obtained from the experiment, and the position of the second paper sheet detection sensor 43 estimated to reach the limit number of sheets (retention limit) is first determined based on the average staying position. Here, the limit number of sheets (retention limit) is the number of sheets 2 in which the retention is eliminated without requiring a recovery operation.

  In the paper sheet transport apparatus 1 shown in the present embodiment, it is estimated that the stay limit that can eliminate stay is about three sheets. This stay limit is that the average value of the number of stays immediately before the stay is resolved is concentrated on two sheets, and the impact force caused by the rear-end collision of the sheet 2 that is transported later, and up to three sheets If the retention of type 2 occurs, the retention can be almost eliminated, and if the retention of four or more sheets occurs, the subsequent impact impact of the fifth and subsequent sheets is absorbed by the sheets 2 that retain at four or more sheets, and the retention It is presumed that there are about 3 sheets because the stay is almost eliminated only by extending to the upstream side.

  The numerical value of the stay limit is increased or decreased by changing the size / design value of the recovery device 40, and is not limited to the number of sheets (about 3 sheets) described above. Further, the apparent length of the paper sheet 2 is between several millimeters and several tens of millimeters because the deformed portion 2b of the paper sheet 2 immediately after being fed may extend during conveyance or conversely shrink. Therefore, the apparent total length of the paper sheet 2 viewed from the paper sheet detection sensors 42 and 43 varies and varies. For this reason, the numerical value of a residence limit is also an expected value.

  In this way, the second paper sheet detection sensor 43 is disposed at the position indicated by the symbol D shown in FIG. Next, the apparent (average) tip position of the deformed paper sheet 2B from the position D where the paper sheet detection sensor 43 is disposed is indicated by a symbol B. Further, when the paper sheet 2A conveyed in the same shape stays in front of the drive pulley 52 and the roller 54 (position A), the apparent (average) rear end position is indicated by a reference symbol C.

  The first paper sheet detection sensor 42 may serve to determine the jam of the paper sheet 2 by detecting the leading edge of the paper sheet 2B or detecting the trailing edge of the paper sheet 2A. it can. Further, the position C is changed by the stay experiment, and the position B is changed by the stay experiment and the expansion and contraction of the paper sheet 2 being conveyed (particularly the expansion and contraction in the deforming portion 2b). If the sensor 42 is disposed, the sensor 42 is deviated from the average staying position obtained from the experiment, and the accuracy of detecting the jam of the paper sheet 2 is lowered. Accordingly, the position where the paper sheet detection sensor 42 is disposed may be disposed anywhere from the position B to the position C as long as the safety margin is taken into consideration.

  In the present embodiment, as shown in FIG. 4, the distance D <b> 1 shorter than the length of the paper sheet 2 from the position of the drive pulley 52 and the roller 54 (position A in FIG. 10) to the blast pipe 10 side (upstream side). 10 (between position B and position C in FIG. 10), the first sheet detection sensor 42 for detecting the sheet 2 is disposed, and the position at the distance D2 longer than the distance D1 (the position in FIG. 10). D) is provided with a second paper sheet detection sensor 43 for detecting the paper sheet 2.

  In such a paper sheet transport apparatus 1, for example, a paper sheet 2 having a size of 76 mm × 150 mm (the same size as the Bank of Japan thousand yen issued on November 1, 2004) can be used. Further, the distance from the paper sheet detection sensor 42 to the paper sheet detection sensor 43 (the interval between the paper sheet detection sensor 42 and the paper sheet detection sensor 43) is 150 mm, which is the same as the length of the paper sheet 2 being conveyed. As a result, the probability of detection by the paper sheet detection sensor 43 when three to four paper sheets 2 stay can be made almost 100%.

(Embodiment 2)
In the first embodiment, after the paper sheet detection sensor is disposed as a position-fixed sensor with a positioning boss, and the paper sheet detection sensor is attached to the blower pipe and the separation unit depending on the component accuracy, Position adjustment is unnecessary. By the way, as paper sheets, for example, there are banknotes of various sizes depending on the amount and country, and slips and the like have standard lengths that vary depending on the type. If a paper sheet transport device corresponding to each size of such a paper sheet is prepared, parts corresponding to the respective sizes are required.

  Therefore, in this embodiment, a paper sheet detection sensor to which a position adjusting function capable of accommodating various sizes of paper sheets is added will be described with reference to FIGS. The first embodiment is different from the first embodiment only in the configuration in which the position detection function is added to the paper sheet detection sensor, and the other configurations are the same. Further, in the present embodiment, description is made by applying to the second paper sheet detection sensor attached to the blower pipe, and the position adjustment function is similarly applied to the first paper sheet detection sensor disposed in the separation unit. The description thereof is omitted.

  11 is a side view of a blower tube to which a paper sheet detection sensor having a position adjusting function is attached, and FIG. 12 is a cross-sectional view taken along line XX of FIG. In FIG. 11, the bracket 100 and the connection body 101 are hatched, and a state where the light emitting portion 43 b and the sensor long hole 10 c formed in the blower tube 10 are seen through is shown.

  As shown in FIG. 11 and FIG. 12, when a light receiving / emitting transmission type sensor is applied as the paper sheet detection sensor 43, the light emitting portion 43a and the light receiving portion 43b are attached to the bracket 100 and face the y direction. 10 on both sides. Since there is a protruding rib 11 on the inner wall of the blower tube 10, if the space between the ribs 11 is used, even if the paper sheet detection sensor 43 protrudes into the blower tube 10, the conveyance of the paper sheet 2 is not hindered. .

  The light emitting unit 43 a and the light receiving unit 43 b are integrally connected across the outside of the blower tube 10 via the connection body 101. The function of the light receiving / emitting transmission type sensor is deteriorated due to the positional deviation between the light emitting unit 43a and the light receiving unit 43b. Therefore, in the present embodiment, the light emitting unit 43a and the light receiving unit 43b are integrally connected via the connection body 101.

  In addition, as shown in FIG. 11, long sensor elongate holes 10 c are formed on both side surfaces of the blower tube 10 along the conveyance direction (x direction) of the paper sheet 2. A bracket 100 is disposed so as to close the sensor long hole 10c. A long fixing screw hole 102 is formed in the bracket 100 along the conveying direction of the paper sheet 2, and a bolt that penetrates the fixing screw hole 102 within the range of the fixing screw hole 102 in the conveying direction. The tube wall of the blower pipe 10 is sandwiched between 103 and a washer (not shown), and is fixed to the tube wall from the outside of the pipe line by a bolt 103. That is, the bracket 100 can slide within the range of the fixing screw hole 102.

  Further, a sensor having a predetermined width (z direction) having a length (x direction) to be adjusted from the upstream side to the downstream side of the pipe line, which is the conveyance direction of the paper sheet 2, on the pipe wall at the sensor mounting position of the blower pipe 10. The elongate hole 10 c is formed wider than the paper sheet detection sensor 43. Therefore, the paper sheet detection sensor 43 attached to the bracket 100 can slide within the sensor slot 10c. For this reason, if the position of the paper sheet detection sensor 43 can be adjusted within the length range of the sensor long hole 10c, the distance D2 from the drive pulley 52 and the roller 54 to the blower tube 10 side (see FIG. 4). Can also be adjusted.

  Further, the outer shape of the bracket 100 is larger than the width (z direction) of the sensor long hole 10c formed in the blower tube 10 and the length (x direction) of the adjustment length to be slid. Thus, the air flow and the outside air can be shielded by completely covering the sensor long hole 10c of the blower pipe 10 with the bracket 100 from the pipe inner wall side.

  Thus, by attaching the paper sheet detection sensor 43 to the bracket 100 slidable along the conveyance direction (x direction) of the paper sheet 2, for example, according to various sizes of the paper sheet 2, The position of the paper sheet detection sensor 43 can be adjusted. That is, by monitoring the stay limit with the paper sheet detection sensor 42 and the paper sheet detection sensor 43 arranged at the optimum position by the position adjustment function, the number of operation stoppages due to stay is reduced, and the paper sheet The operating rate of the similar transport device 1 can be improved.

  Moreover, in this Embodiment, the light emission part 43a and the light-receiving part 43b which comprise a light reception / emission permeation | transmission sensor are integrally connected via the connection body 101. FIG. For this reason, it is possible to prevent the light receiving and emitting shafts from being displaced during the slide adjustment, so that it is possible to accurately detect the conveyed paper sheet 2.

  Note that the bracket 100 may be attached to the blower pipe 10 by another method. For example, a long hole for sensor 10c and a plurality of mounting screw holes are provided on the tube wall of the blower pipe 10, and a long hole having an adjustment length corresponding to the number and position of the mounting screw holes is provided in the bracket 100. You may clamp | tighten with the volt | bolt 103 on both sides of the pipe outer wall of the ventilation pipe 10, and a washer. Accordingly, the exposure of the paper sheet detection sensor 43 can be retreated from the inner wall of the air duct 10 by the thickness of the inner wall of the air duct 10, so that the paper sheet can be installed on any surface of the air duct 10. The detection sensor 43 can be installed so that the tip of the detection sensor 43 does not protrude from the inner wall of the pipe, so that the flow of the paper sheets is not hindered.

  The present invention is widely used in the manufacturing industry of a paper sheet transport apparatus using the paper sheet transport method.

DESCRIPTION OF SYMBOLS 1 Paper sheet conveying apparatus 2, 2A, 2B, 2C Paper sheet 2a Plane part 2b Deformation part 10 Blower pipe 10a Bending part 10b Through-hole 10c Sensor long hole 11 Rib 20 Feeding apparatus 21 Bill identification apparatus 22 Bending apparatus 30 Air Flow generator 31 Sending pipe 32 Connecting pipe 33 Return pipe 34 Intake port 40 Recovery apparatus 41 Discharge pipe 42 Paper sheet detection sensor (first sensor)
43 Paper sheet detection sensor (second sensor)
43a Light emitting unit 43b Light receiving unit 44 Entrance sensor 45 Separating unit motor 46 Correction unit motor 47 Termination detection switch 48 Storage unit motor 49 Control unit 50 Separating unit 50a Through hole 51 Conveying belt 52 Drive pulley 53 Passive pulley 54 Roller 55 Squeegee 55a Projection 56 Lattice plate 56a Opening 57, 58 Gear 70 Straightening portion 71 Straightening roller 90 Storage portion 91 Press plate 100 Bracket 101 Connector 102 Fixing screw hole 103 Bolt

Claims (2)

An air duct,
A feeding device that forms a deformed portion at the rear end of the paper sheet and feeds the paper sheet into the air duct;
An air flow generator for generating an air flow for conveying a paper sheet in the blow pipe by applying wind pressure to a deformed portion of the paper sheet;
A paper sheet transporting device having a collecting device that is disposed at a terminal portion of the air blowing tube and collects paper sheets transported through the air blowing tube;
The collection device is configured to include a separation unit that separates the paper sheet that has been transported in the blower pipe and the air flow,
A first sensor disposed in the separation unit for detecting paper sheets;
A second sensor that is disposed upstream of the first sensor and detects paper sheets;
Not determined that clogging when the paper sheet only in the first sensor is detected, possess a clog and determining control unit when the paper sheet by the first sensor and the second sensor is detected,
A long slot is formed in the air blowing pipe along the conveying direction of the paper sheet,
It is slidable along the transport direction of the paper sheet, and a bracket for closing the elongated hole is disposed.
The paper sheet transporting apparatus , wherein the second sensor attached to the bracket is slidable in the elongated hole . The paper sheet conveying apparatus according to claim 1, wherein the paper sheet is a banknote.

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