JP2020100452A - Paper sheet conveying system - Google Patents

Abstract

To provide a paper sheet conveying system that can maintain stable conveyance performance and does not interrupt business.SOLUTION: A paper sheet conveying system 1 for conveying a paper sheet by an air flow that includes a blower tube 10 for guiding an air flow in the tube and conveying a paper sheet 2, a feeding device 20 for sending the paper sheet 2 into the blower tube 10, an air flow generation device 30 for generating an air flow in the blower tube 10, a collection device 40 provided at an end of the blower tube 10 for collecting the paper sheet 2, and a control unit 100 for controlling the device, in which the control unit 100 controls the airflow generation device 30 so as to change a wind speed in the blower tube 10 based on fact that the feeding device 20 has notified the control unit 100 that feeding of the paper sheet 2 has been completed or is on standby.SELECTED DRAWING: Figure 4

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet conveying system that conveys paper sheets by an air flow.

A system for transporting paper sheets by an air stream is provided and is used in a game arcade and the like. This air flow sheet conveying system can be downsized as compared with a conveying device using a belt or a roller, and consumables such as a belt and a roller are not required, so that the running cost can be suppressed and operated.

In addition, the paper sheet transportation system by air flow has a more flexible transportation layout than the belt and roller type, and it is more flexible not only to transport paper sheets to different locations in the same room but also between different rooms and different floors. It is also high and enables long distance transportation. For example, the paper sheets sent into the blower pipe from the sending device on the pachinko island of the game hall are carried by the air flow to the safe room, which is a separate room, where they can be collected and collected (Patent Document 1: Patent 4409626).

Patent No. 4409626

However, even in the system described in Patent Document 1, a plurality of paper sheets are being conveyed in the blower tube, or a paper sheet is held by the blowing device and a part of the paper sheet is being discharged into the blower tube during standby. In some cases, the conveyance performance is not stable, and there is a possibility that paper sheets may accumulate or jam.

INDUSTRIAL APPLICABILITY The present invention maintains stable conveyance performance and does not stop business even when a plurality of paper sheets are being conveyed in the blower tube or in a standby state in which some of the paper sheets are being discharged into the blower tube. Provide a leaf transportation system.

The paper sheet transport system according to the present invention is a system for transporting paper sheets by an air flow, and includes a blower tube that guides an air flow in a tube and conveys the paper sheets, and a paper sheet into the blower tube. A feeding device for feeding air, an air flow generating device for generating the air flow in the blower pipe, a collecting device provided at a terminal end of the blower pipe for collecting paper sheets, and a control unit for controlling the devices In the paper sheet conveying system including, the feeding unit notifies the control unit that the feeding of the paper sheets is completed or waiting for feeding, and the control unit causes the wind velocity in the blower pipe by the air flow generation device. Is controlled so as to change.

Based on the fact that the feeding device notifies the control unit that the feeding of the paper sheets is completed, the control unit can control the air flow generation device and control to increase the wind speed in the blower pipe. ..
The control unit controls the air flow generation device based on the fact that the feeding device notifies the control unit that the sheet is waiting to be fed, and controls to increase the wind speed in the blower pipe. You can

A detection unit is provided in the blower pipe or the collection device, the detection unit detects the paper sheet, and based on the notification to the control unit, the control unit determines the wind speed in the blower pipe by the airflow generation device. It can be controlled to be fast or slow.

The control unit calculates a difference between the information of the completion of feeding the paper sheets notified by the feeding device and the information detected by the detection unit provided in the blower tube or the collecting device, and based on the result, the air The flow generator can be controlled to control the wind speed in the blower pipe to be faster or slower.

The control unit calculates a difference between the information on the standby for feeding the paper sheet notified by the feeding device and the information detected by the detection unit provided in the blower tube or the collecting device, and based on the result, the air The flow generator can be controlled to control the wind speed in the blower pipe to be faster or slower.

According to the present invention, even when a plurality of paper sheets are being conveyed in the blower tube or a standby state in which some of the paper sheets are being discharged into the blower tube, stable conveyance performance is maintained and business is suspended. It is possible to provide a paper sheet transport system that does not.

It is a schematic diagram which shows the structure of a paper sheet conveyance system. It is an explanatory view of a recovery device. It is explanatory drawing which shows the wiring system of a paper sheet conveyance system. It is a flow chart which shows a 1st embodiment of the example of control in a control part. It is a flow chart which shows a 2nd embodiment of the example of control in a control part. It is a flowchart which shows 3rd Embodiment of the example of control in a control part. It is a flow chart which shows a 4th embodiment of the example of control in a control part. It is a flow chart which shows a 5th embodiment of the example of control in a control part. It is a flow chart which shows a 6th embodiment of the example of control in a control part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In all the drawings for explaining the embodiments, members having the same function are designated by the same reference numeral, and the repeated description thereof may be omitted.

First, the overall configuration of the paper sheet transport system 1 according to this embodiment will be described with reference to FIGS. 1 and 2. Regarding the paper sheet transport system 1, the technique proposed by the present inventor in Patent Document 1 and the like can be referred to.
In the following, bills will be described as an example of paper sheets.

As shown in FIG. 1, in the paper sheet conveying system 1, for example, an air flow generated by an air flow generation device 30 such as a blower is delivered by a delivery pipe 31, a connection pipe 32, a blower pipe 10, a recovery device 40, a return pipe 33. It is configured to circulate through. In order to configure this circulation path, the blower tube 10 is formed with a bent tube 10a bent in a U shape. In addition, a plurality of feeding devices 20 for feeding the banknotes 2 into the blower tube 10 are installed at appropriate places of the blower tube 10. The airflow generation device 30, the delivery pipe 31, the connection pipe 32, the return pipe 33, and the recovery device 40 are installed, for example, inside the housing 49, and the blower pipe 10 and the blowing device 20 are installed outside the housing 49. ..

The feeding device 20 has a bill identifying device 21 installed on the front side of the feeding and a bending device 22 installed on the back side and connected to the blower tube 10. The bending device 22 that constitutes the feeding device 20 forms a zigzag-shaped deformed portion 2b (which is a bent portion) at the rear end portion in the conveyance direction with respect to the flat surface portion 2a at the front end portion in the conveyance direction of the banknote 2. Is. Wind pressure from an air flow (indicated by an arrow in FIG. 1) flowing in the blower pipe 10 acts on the deformed portion 2b, and the banknote 2 is conveyed in the blower pipe 10.

Further, the recovery device 40 is configured to include a separation unit 50, a correction unit 70, and a storage unit 90 that are installed in the order of conveyance from the terminal end side of the blower pipe 10. Of these, the separating unit 50 separates the banknote 2 that has been conveyed through the blower tube 10 and the airflow that has given a propulsive force to the banknote 2 and sends the banknote 2 to the correction unit 70. Further, the correction section 70 corrects the deformed section 2b of the banknote 2 sent from the separating section 50. The storage unit 90 stores the banknote 2 separated from the airflow by the separation unit 50 in a stretched state (flattened state) by correcting the deformation of the deformation unit 2b via the correction unit 70. Is.

FIG. 1 has described the paper sheet transport system 1 on one row of pachinko islands (island-like places where a plurality of pachinko machines are arranged back to back) in the hall.
However, this is not a system for collecting the banknotes 2 in the same room by the collecting device (safe) 40, but the collecting device 40 is arranged in another room (not shown), and the blower pipe 10 crawls along the wall surface or the ceiling ceiling. It may be a system that is installed together and is guided to a recovery device 40 that is installed in a separate room for recovery.

FIG. 2 shows a specific example of the recovery device 40. As the recovery device 40, a known recovery device as shown in Patent Document 1 can be used.
The following is a brief description.
In the separating unit 50, the airflow and the banknote 2 are separated, and the airflow is discharged to the outside from an exhaust pipe (not shown). The banknote 2 is guided and conveyed by the conveyor belt 51 disposed downstream of the separating unit 50, and is sent to the correction unit 70 by the roller 54. The straightening unit 70 has straightening rollers 72 arranged in a zigzag shape, and the bill 2 passes through the straightening roller 72 so that the bending (deformation) is straightened to form a flat bill 2, which is well known. By the mechanism, they are sequentially stacked and stored in the storage section 90.

A motor 60 drives the conveyor belt 51 and the roller 54.
The storage portion 90 has a press plate 96 that is vertically moved by a motor 98, and a receiving plate 94 that is biased upward by a spring 92.
At the site of the collection device 40, a paper sheet detection unit that detects the banknotes 2 conveyed into the collection device 40 is installed. For example, the paper sheet detection unit is provided between the inlet sensor 43 (detection unit) that detects the banknote 2 and the correction unit 70 and the storage unit 90 before being separated from the air flow by the separation unit 50. It has a terminal sensor 44 and the like for detecting the bill 2.

As described above, the paper sheet transporting system 1 sends the bills 2 into the blower tube 10 by forming the deformed portion 2b at the rear end of the banknote 2 and the blower tube 10 in which the paper sheets are transported by the air flow. The blowing device 20, the air flow generator 30 that applies a wind pressure to the deformed portion 2b of the banknote 2 to generate an airflow of the banknote 2 in the blower tube 10, and is installed at the end portion of the blower tube 10. It is provided with a collecting device 40 for collecting the banknotes 2 conveyed inside. Further, the paper sheet transport system 1 includes a control unit 100 that controls devices such as the airflow generation device 30, the feeding device 20, and the collection device 40 (see FIG. 3 ). In such a paper sheet transport system 1, a transport path is configured in the order of the blowing device 20, into which the banknote 2 is inserted, the blower tube 10, the separating unit 50, the correction unit 70, and the storage unit 90, and the banknote 2 is transported by this transport system. Transported on the road.

As shown in FIG. 3, the control unit 100 includes a feeding device 20 via a loop communication line 25, a display device 103 for displaying various states of the paper sheet transport system 1 via a communication line 101, and a communication line 102. It is electrically connected to the recovery device 40 via. As described above, in the paper sheet transport system 1, the control unit 100 and other devices such as the feeding device 20 are built in the wiring system including the paper sheet detection unit. The control unit 100 has a control function of controlling devices such as the feeding device 20 via a wiring system. In the present application, the ON state of the paper sheet detection unit refers to a state in which the banknote 2 is detected, and the OFF state refers to the opposite state.

The control unit 23 of the blowing device 20 is fed into the blower pipe 10 at an inlet sensor 26 that detects that the bill 2 is inserted into the feeding device 20 and a portion of the blower pipe 10 to which the blowing device 20 is connected. The outlet sensor (detection unit) 27 that detects the banknotes 2 that have been stored and that detects the staying state of the banknotes 2, the feed motor 28 of the bending device 22, and the control unit 29 of the banknote recognition device 21 are electrically connected. There is. In addition, the display device 103 is a display lamp (for example, an LED) that lights up in a normal operation state or an error state such as when a jam of the banknote 2 is detected, an alarm device that warns, a reset button for the display device, and a display device. It has a power switch.

The control unit 100 further has the following basic functions (basic forms).
That is, when the outlet sensor 27 in the feeding device 20 detects that the bill 2 is fed into the blower tube 10 (the sensor is from ON to OFF), a counter addition function of adding 1 to the counter,
A function of subtracting 1 from the counter when the end sensor 44 in the collection device 40 detects that the bill 2 has been sent into the storage unit 90 and is collected (the sensor is from ON to OFF),
A discharge prohibition function of prohibiting the discharge (feeding) of the banknotes 2 into the blower pipe 10 when the value of the counter exceeds the specified value (K),
When the value of the counter does not exceed the specified value (K), the blower pipe 10 has a discharge permission function of permitting the bill 2 to be discharged.

Further, when the value of the counter exceeds the specified value (K), the control unit 100 may display it on the display device 103 to give a warning, and in some cases stop part or all of the device. ..
As described above, the control unit 100 controls the banknotes 2 so that the banknotes 2 are always present in the blower tube 10 within the specified number. As a result, the bill 2 can be conveyed in the blower tube 10 with a stable conveying force.
For the series of controls described above, the functions detailed in Patent Document 1 can be adopted as they are.
In the present embodiment, the counter value exceeds the specified value (K), the ejection of the banknotes 2 from the feeding device 20 into the blower tube 10 is prohibited, and the number of banknotes 2 in the standby state is waited. It is designed to count by a counter.

FIG. 4 is a flowchart showing the first embodiment of the control example in the control unit 100.
When a main switch (not shown) of the paper sheet transport system 1 is turned on, the airflow generation device 30 enters a standby state (step S10) in which it is driven with a required output (F).
In the feeding device 20, when the exit sensor 27 notifies the control unit 100 that the bill 2 has been fed into the blower tube 10 (step S12), the control unit 100 sets the output of the airflow generation device 30 from F. The output F+α increased by the value α is set, and the wind speed in the blower tube 10 is controlled to be increased thereby (step S14). When the banknotes 2 are discharged into the blower pipe 10, the carrying load increases and the wind speed decreases accordingly. Therefore, the output of the airflow generation device 30 is increased and the wind speed is compensated.

The output increase α is experimentally obtained in advance and is input to the control unit 100. The set value α may be a constant value or may be increased according to the number of discharged (sent) sheets.
The output is reduced when the end sensor 44 detects that the banknote 2 discharged into the blower tube 10 has been recovered by the recovery device 40, and the standby mode is set when the banknote 2 is zero. Return to output F.

The present embodiment may be performed in addition to the above basic functions of the control unit 100. That is, even if the number of banknotes 2 existing in the blower tube 10 is within the specified value (K), the output of the airflow generation device 30 is increased or decreased if the banknotes 2 are discharged and collected.
As a result, finer control can be performed, and the conveyance function of the banknote 2 can be stabilized.
Alternatively, this embodiment may be adopted regardless of the basic function. That is, since the output of the airflow generation device 30 is simply increased or decreased to change the wind speed in the blower pipe 10 when the bill 2 is discharged into the blower pipe 10 or when the bill 2 is collected. It may be.

FIG. 5 is a flowchart showing a second embodiment of a control example in which further control is added to the basic function of the control unit 100.
In the present embodiment, in the feeding device 20, the outlet sensor (detection unit) 27 is in the ON state, that is, the specified number (K) of banknotes 2 are discharged into the blower tube 10, and more banknotes 2 are sent. It is an embodiment of control of the airflow generation device 30 in the case of a standby state in which discharge into the inside is prohibited.

When the banknote 2 is in the standby state, the banknote 2 is in a state in which one end of the banknote 2 is held and held by a feed roller (not shown) in the feeding device 20, and in this case, the other end of the bill 2 is partially blown. It is in a state of being discharged into the tube 10. Therefore, even when the banknote 2 is in such a standby state, it becomes a ventilation resistance and the function of transporting the banknote 2 in the blower tube 10 is deteriorated.
Therefore, in the present embodiment, in the feeding device 20, when the outlet sensor 27 notifies the control unit 100 that the bill 2 is prohibited from being fed into the blower tube 10 (standby state) (step S16), the control unit 100 causes the control unit 100 to The output of the airflow generator 30 is set to the output F+α which is increased from F by the set value α, and the wind speed in the blower tube 10 is controlled to be increased thereby (step S18).

Also in the present embodiment, the set value α may be a constant value or may be increased according to the number of banknotes 2 in the standby state.
When the banknote 2 in the standby state becomes zero, the output of the airflow generation device 30 is returned to the standby output F.
The first embodiment and the second embodiment may be implemented together.

FIG. 6 is a flowchart showing the third embodiment.
As described above, the collection device 40 has a conveyance mechanism including belts and rollers such as the conveyance belt 51, the roller 54, and the correction roller 72. A large difference occurs in the transportation speed of the banknotes 2 in the device 40, and when the banknotes 2 enter the recovery device 40 at the transportation speed in the blower tube 10, the banknotes 2 are crushed and cause a jam. In particular, as shown in FIG. 2, when the blower pipe 10 immediately in front of the collection device 40 is a vertical downcomer pipe, the speed difference becomes large, the crushing phenomenon of the banknote 2 occurs, and the jamming phenomenon occurs. It was easy. Further, in the first embodiment and the second embodiment, when the output of the airflow generation device 30 is increased and the wind speed in the blower pipe 10 is increased, the speed difference is increased, and the inside of the recovery device 40 is increased. The jamming phenomenon of the bill 2 easily occurs in the above.

Therefore, in the present embodiment, when the passage of the banknote 2 is confirmed by the entrance sensor (detection unit: not shown) provided in the blower pipe 10 in front of the collection device 40 (step S20), the detection signal is sent to the control unit 100. The control unit 100 reduces the output of the airflow generation device 30 by a preset decrease β of the output, and drives the airflow generation device 30 with the output of F−β (step S22). ). As a result, the speed of the bills 2 sent to the collection device 40 is reduced to the required speed, and the jamming phenomenon of the bills 2 in the collection device 40 can be suppressed. When the bill 2 is detected by the terminal sensor 44 in the storage portion 90, the output of the airflow generation device 30 is returned to the standby output F.
The output decrease β is experimentally obtained in advance and is input to the control unit 100.

FIG. 7 is a flow chart showing the fourth embodiment.
When the blower pipe 10 immediately before the recovery device 40 is a vertically rising pipe (not shown), the wind speed inside the blower pipe 10 is the same as in the first embodiment or the second embodiment. Even when the speed is increased, the conveyance speed of the banknotes 2 in the collection device 40 becomes too low, and this also contributes to the jamming phenomenon of the banknotes 2.

Therefore, in the present embodiment, when passage of the banknote 2 is confirmed by an entrance sensor (detection unit: not shown) provided in the blower pipe 10 before the collection device 40 (step S24), the detection signal is sent to the control unit 100. The control unit 100 increases the output of the airflow generating device 30 by a preset increase amount α of the output, and drives the airflow generating device 30 with the output of F+α (step S26). As a result, the speed of the bills 2 sent to the collection device 40 increases to the required speed, and the jamming phenomenon of the bills 2 in the collection device 40 can be suppressed. The output increase α may be preliminarily obtained on a trial basis similarly to the third embodiment. When the bill sensor 2 detects that the bill 2 has been collected in the storage portion 90, the output of the airflow generation device 30 is returned to the standby output F.

FIG. 8 is a flow chart showing the fifth embodiment.
In the present embodiment, when a bill 2 is newly sent into the blower tube 10, the difference between the number of bills 2 fed into the blower tube 10 and the number of bills 2 collected by the collecting device 40 is calculated and actually In addition, the output of the airflow generation device 30 is controlled by the number of bills 2 conveyed in the blower pipe 10.

That is, in step S30, when the exit sensor (detection unit) 27 detects that the feeding of the bill 2 into the blower pipe 10 by the blowing device 20 is completed, the control unit 100 blows the bill 2 up to that time. The cumulative number A of sheets fed into the tube 10 (the newly detected banknote 2 is set to +1) and the cumulative number of collected banknotes 2 of the banknotes 2 collected by the collecting apparatus 40 up to that time (the newly banknote 2 is (If it is collected, it is set to +1) and the difference C is calculated, and the number C of the banknotes 2 being conveyed in the blower tube 10 is calculated (step S32).

Then, when it is determined in step S34 that the number C of the banknotes 2 being conveyed is greater than the specified number K, the control unit 100 sets the output of the airflow generation device 30 to the output F+α that is increased from F by the set value α. Thus, the wind speed in the blower tube 10 is controlled to be increased (step S36).
The set value α may be a constant value or may be increased according to the number of the banknotes 2 which is larger than the specified number K.

In step S34, when the number C of banknotes 2 being conveyed in the blower tube 10 is less than or equal to the specified number K, the output of the airflow generation device 30 remains F (step S38), and the inside of the blower tube 10 is kept. When the number C of the bills 2 being conveyed becomes zero (step S40), the output of the airflow generation device 30 is set to the output in the standby state (step S42), and the collection of the bills 2 by the collection device 40 ends.

In the present embodiment, even in the case of the basic function (basic form) of prohibiting the feeding of the banknotes 2 of the specified number K or more into the blower tube 10, the banknotes 2 of the specified number K or more are mistakenly blown by the blower tube 10. It is effective in that case because it may be sent inside.
Alternatively, the present embodiment is particularly effective in the case of an embodiment in which the number of bills 2 fed into the blower tube 10 is not particularly limited, rather than the basic function.

FIG. 9 is a flowchart showing the sixth embodiment.
The present embodiment is a case of the above-mentioned basic function (basic form) of prohibiting the feeding of the banknotes 2 of the specified number K or more into the blower pipe 10, and the number and the collection of the banknotes 2 in the standby state by the sending device 20. The output of the airflow generation device 30 is controlled by the difference from the number of the banknotes 2 that have been collected by the device 40.

That is, in step S44, when the exit sensor (detection unit) 27 detects the banknote 2 newly placed in the standby state in the feeding device 20, the control unit 100 causes the standby number A of the banknotes 2 (new standby banknote). When 2 is detected, it is set to +1), and the difference with the number B of collected banknotes 2 newly collected by the collection device 40 is calculated (step S46). In the basic function, when the banknote 2 in the standby state exists, when the banknote 2 is newly collected by the collection device 40, the banknote 2 in the standby state is sent into the blower pipe 10 each time. The difference of B is calculated, and the number of banknotes 2 actually in the standby state is calculated.

Then, when it is determined in step S48 that the number C of the banknotes 2 on standby is greater than the specified number K, the control unit 100 sets the output of the airflow generation device 30 to the output F+α that is increased from F by the set value α. Thus, the wind velocity in the blower tube 10 is controlled to be increased (step S50). Even when the banknote 2 is in the standby state, the airflow resistance in the blower pipe 10 is increased, so that the output of the airflow generation device 30 is increased and the banknote 2 can be stably transported.
The set value α may be a constant value or may be increased according to the number of the banknotes 2 which is larger than the specified number K.

When the number C of the banknotes 2 in the standby state is equal to or less than the specified number K in step S48, the output of the airflow generation device 30 remains F (step S52), and the number C of the banknotes 2 in the standby state is C. When becomes zero (step S54), the output of the airflow generation device 30 is set to the output in the standby state (step S56), and the control of the airflow generation device 30 ends.

1 Paper sheet transport system 2 Banknotes (paper sheets)
2a Flat part 2b Deformation part 10 Blower tube 10a Bending part 20 Feeding device 21 Banknote identification device 22 Bending device 23 Control part 25 Loop communication line 26 Entrance sensor 27 Exit sensor (detection part)
28 Feeding Motor 29 Control Unit 30 Air Flow Generator 31 Delivery Pipe 32 Connection Pipe 33 Return Pipe 40 Recovery Device 43 Inlet Sensor (Detection Unit)
44 Terminal Sensor 49 Housing 50 Separation Part 51 Conveyor Belt 54 Roller 60 Motor 70 Correction Section 72 Correction Roller 90 Storage Section 92 Spring 94 Receiving Plate 96 Press Plate 98 Motor 100 Control Unit 101, 102 Communication Line 103 Display Device

Claims (6)

A system for transporting paper sheets by an air flow, comprising a blower tube for guiding the air flow in the tube and transporting the paper sheets, a feeding device for feeding the paper sheets into the blower tube, and In a paper sheet conveying system comprising an air flow generating device for generating an air flow, a collecting device provided at a terminal end of the blower pipe for collecting paper sheets, and a control section for controlling the devices,
The control unit controls the air flow generation device to change the wind speed in the blower tube based on the fact that the feeding device notifies the control unit that the feeding of the paper sheets is completed or the feeding standby is notified. Paper transport system. The control unit controls the air flow generation device based on the fact that the feeding device notifies the control unit that the feeding of the paper sheets has been completed, and controls to increase the wind speed in the blower pipe. The paper sheet conveying system according to claim 1. The control unit controls the airflow generation device based on the fact that the feeding device has notified the control unit that the sheet is waiting to be fed, and controls to increase the wind speed in the blower pipe. The paper sheet conveying system according to claim 1. A detection unit is provided in the blower pipe or the collection device, the detection unit detects the paper sheet, and based on the notification to the control unit, the control unit determines the wind speed in the blower pipe by the airflow generation device. The paper sheet conveying system according to any one of claims 1 to 3, wherein the paper sheet conveying system is controlled so as to speed up or slow down. The control unit calculates a difference between the information of the completion of feeding the paper sheets notified by the feeding device and the information detected by the detection unit provided in the blower tube or the collecting device, and based on the result, the air The sheet conveying system according to claim 4, wherein the flow generator is controlled to control the wind velocity in the blower pipe to be increased or decreased. The control unit calculates a difference between the information on the standby for feeding the paper sheet notified by the feeding device and the information detected by the detection unit provided in the blower tube or the collecting device, and based on the result, the air The sheet conveying system according to claim 4, wherein the flow generator is controlled to control the wind velocity in the blower pipe to be increased or decreased.