JP2531937Y2 - Stacker for bills - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bill handling device, and more particularly to a bill stacker device capable of detecting a full state of a case for storing bills.

2. Description of the Related Art A banknote handling device such as a banknote changer and a vending machine includes a banknote discriminating device (validator) and a banknote storage device (stacker) that stores banknotes that have been determined to be authentic bills by the banknote discriminating device. Generally, a bill storage device has a bill pushing device and a box-shaped storage portion detachably connected to the pushing device. The bills sent from the bill validator to the pushing device are pushed into the storage section by the operation of the pushing device. Conventionally, the fullness of banknotes in a storage unit is detected by a mechanical detection sensor such as a microswitch or an optical detection sensor such as a photocoupler mounted in an appropriate position in the storage unit.

Problems to be Solved by the Invention However, conventionally, since the detection sensor is provided in the storage unit with the electric wiring, the full state of the banknote cannot be accurately detected, and the amount and space of the banknote stored in the storage unit are limited. There is a drawback that there is a limit and the storage space for bills is restricted. Further, when removing the storage unit from the pushing device, it is necessary to remove the electric wiring of the sensor, which makes the operation troublesome.
On the other hand, when the bill is full, it is necessary to send a signal indicating that the additional bill cannot be stored to the control unit.

Conventionally, when a bill to be stored in the storage unit is full, a signal for rejecting acceptance of the next bill is generated, and when a jam of the bill (jamming) occurs in the middle of the transport path. Similarly, a display for rejecting the next bill is generated. Therefore, it is unclear whether the signal refusing to accept the bill indicates that the storage unit should be replaced when the bill is full or that jamming has occurred, and it is inconvenient that inspection and confirmation require time and effort. Was.
Further, when the storage unit is full and a banknote exceeding the limit is pushed into the storage unit and stored, a driving device including a motor or the like is locked and an overload is caused.

An object of the present invention is to provide a bill stacker device that can reliably detect a full state of bills in a case without providing a full detection sensor on the case side.

Means for Solving the Problems A bill stacker device according to the present invention has a case (40) for accommodating a bill (1), a push plate (31) for pushing the bill (1) into the case (40), and a case. (40) A pushing device (30) that detachably supports, a driving device (36) including a motor (36a) that moves the pushing plate (31) with respect to the case (40), and a driving device (36). A storage control device (50) for transmitting an activation signal or a stop signal. This banknote stacker device includes an output shaft of a motor (36a) of a driving device (36) or power transmission means (36c, 36c) drivingly connected to the output shaft.
b, 36d) a rotation sensor (38) for detecting the number of rotations, and a push plate (31) provided in the storage control device (50) and necessary for storing the banknote (1) in the case (40). The number of pulses of the rotation sensor (38) corresponding to the minimum moving distance is set to the minimum pulse number Nm.
a storage means for storing as a limit pulse number Ncr the number of pulses at a full-pressed position when the banknote (1) is pressed into the case (40), and a storage control device (5).
0), the number of pulses N detected by the rotation sensor (38) when the pressing plate (31) is moved, the minimum number of pulses Nmin necessary for storing the banknote (1), and the limit number of pulses Nc when full.
and a comparing means for comparing r with r. The storage control device (50) operates the rotation sensor (38) when the motor (36a) operates.
After setting the number of counting pulses to 0, the motor (36a) is operated to count the number of pulses of the rotation sensor (38). The comparing means detects the number of pulses N detected by the rotation sensor (38) when the driving device (36) moves the pressing plate (31) to the pressing position for storing the banknote (1) in the case (40).
Is greater than the minimum pulse number Nmin and the limit pulse number Ncr
If it is larger, it is determined that it can be stored, and the rotation sensor (3
The number of pulses N detected in 8) is the minimum number of pulses Nmin
When it is larger and smaller than the limit pulse number Ncr, the case (40) outputs a full signal (v ₄ ) which is full with the bill (1).

In an embodiment of the invention, the comparison means comprises a rotation sensor (3
When the number of pulses detected in step 8) is smaller than the minimum number of pulses Nmin, an error signal (v ₃ ) is output.

The comparison means of the storage control device (50) is configured such that when the push plate (31) is moved by the drive device (36) to the push position for storing the bill (1) in the case (40), the rotation sensor (38) When the pulse number N counted by the above is larger than the minimum pulse number Nmin and larger than the limit pulse number Ncr, it is determined that storage is possible, and when the pulse number N is larger than the minimum pulse number Nmin but smaller than the limit pulse number Ncr, The case (40) outputs a full signal (v ₄ ) when the case (40) is full with the bill (1).
Therefore, by counting the number of pulses by the rotation sensor (38), it is possible to reliably detect a full state without providing a full state detection sensor on the case (40) side. For this reason, an excessive electrical load and a mechanical load of the driving device (36) do not occur, and occurrence of a failure can be suppressed. In addition, since the sensor is not attached to the case (40) side for storing the bill (1), there is no need for electrical wiring from the pushing device (30) to the case (40) side, and wiring is required when removing the case (40). No need to remove. Further, the space for storing the bill (1) in the case (40) is not restricted.

An embodiment of a bill stacker according to the present invention will be described below with reference to FIGS.

As shown in FIG. 2, the bill stacker device 20 according to the present invention includes a pushing device 30 and a case 40 which is detachably supported by the pushing device 30 and stores bills pressed from the pushing device 30. The pushing device 30 includes a housing 34, a pushing plate 31 that is arranged vertically and presses the bill 1, and a link device 21 that attaches the pushing plate 31 to the housing 34. The link device 21 includes two link members 32 and 33 intersectingly connected by a connecting pin 35a at an intersection in an X shape, and a transmission link connected at one end to a connecting pin 35a at the intersection of the link members 32 and 33. A drive unit 36 such as a pulse motor (36a) is connected to the drive unit 35 via a transmission link 35. One end of the link member 32 is rotatably mounted on a pin 32a on the back surface of the pressing plate 31, and the other end of the link member 32 is a moving pin having a roller.
It comes into contact with the housing 34 via 32b. The moving pin 32b having a roller comes into contact with the housing so as to roll along the housing, and the moving pin 33a having a roller comes into contact with the pushing plate 31 so as to roll along the pressing plate 31. One end of the link member 33 is in contact with the push plate 31 via a moving pin 33a having a roller, and the other end of the link member 33 is rotatably mounted on the housing 34 via a pin 33b.

As shown in FIG. 5, the driving device 36 includes a motor 36a,
A small gear 36b fixed to the output shaft of the motor 36a, a screw shaft 36d rotatably mounted on the housing 34, and a screw shaft 3
A reduction gear 36c fixed to 6d and meshing with the small gear 36b,
A pin 35b meshes with the screw shaft 36d and the other end of the transmission link 35
And a female screw portion 35c rotatably attached by Therefore, the rotation of the motor 36a is controlled by the small gear 36b and the reduction gear.
The internal thread 35c is transmitted to the screw shaft 36d and the screw shaft 36d, and the female screw portion 35c is moved vertically along the screw shaft 36d by the rotation of the screw shaft 36d. The small gear 36b, the reduction gear 36c, and the screw shaft 36d constitute power transmission means. When the female screw portion 35c moves along the screw shaft 36d, the transmission link 35 presses the connecting pin 35a away from the screw shaft 36d or pulls the connecting pin 35a in a direction approaching the screw shaft 36d. As described above, the rotation of the screw rod 36d is
It is converted into the oscillating motion of the transmission link 35 and the linear motion of the connecting pin 35a via 5c, and the two link members 32, 33 are rotated around the connecting pin 35a through the linear motion of the connecting pin 35a. Thus, the push plate 31 can be moved to the case 40 between the return position shown in FIG. 2 and the pressing position shown in FIG. The number of rotation pulses generated when the disk-shaped encoder 37 attached to the output shaft of the motor 36a is rotated is detected by a rotation sensor 38 that detects a pulse of a photocoupler or the like, and the position of the pressing plate 31 is determined. Can be. The rotation sensor 38 detects the rotation speed N of the output shaft of the motor 36a of the driving device 36 or the rotation speed N of the reduction gear device drivingly connected to the motor 36a. The number of rotations N is, for example, the number of rotation pulses. The pushing plate 31 is moved to the case 40 by the operation of the driving device 36.
Can be moved forward or backward.

The case 40 of the stacker device 20 is formed in a housing large enough to store a large number of banknotes 1, and the entire case 40 is a pushing device.
30 can be removed. Inside the case 40, a back plate 41 movably disposed and receiving the banknote 1, and a shoulder portion disposed between the back plate 41 and the case 40 and provided with the back plate 41 at the front of the case 40. A spring 42 for pressing against 43 is arranged. The bill 1 taken into the case 40 is pressed from behind by the back plate 41 and the spring 42 by the pressing force of the spring 42 and comes into contact with the inner surface of the shoulder 43. When the banknote 1 in the case 40 is full, the spring 42 is turned on as shown in FIG.
Is sufficiently compressed to be in a contracted state.

FIG. 1 is a block diagram showing an electric control circuit used in the bill stacker device 20 according to the present invention. The bill stacker device 20 includes a rotation sensor 38 and a return detection sensor 39.
And the output v ₁ of the return detection sensor 39 and the output of the rotation sensor 38
v has ₂ and the storage control unit 50 for receiving, and a driving device 36 that is driven by the output of the storage control device 50. Storage control device
Reference numeral 50 denotes a microcomputer used as a CPU, and the storage control device 50 has storage means and comparison means (not shown). As shown in FIG. 3, the storage means stores the number of pulses of the rotation sensor 38 corresponding to the minimum moving distance of the push plate 31 necessary for storing bills in the case 40 by the minimum pulse number Nmin.
In addition, as shown in FIG. 4, when the bill 1 is pushed into the case 40, the number of pulses at the pushed position that is full is stored as the limit pulse number Ncr. The comparison means calculates the number of pulses N detected by the rotation sensor 38 when the pressing plate 31 moves.
Is compared with the minimum pulse number Nmin necessary for storing bills and the limit pulse number Ncr when full. The comparison means of the storage control device 50 determines that the pulse number N detected by the rotation pulse number detection sensor 38 is larger than the minimum pulse number Nmin and the limit pulse number
When it is larger than Ncr, it is determined that the storage is possible and the number of pulses N
However, when the number of pulses is larger than the minimum pulse number Nmin but smaller than the limit pulse number Ncr, a detection signal indicating that the case 40 is full of bills is output.

As shown in FIG. 2 to FIG.
A bill validator (validator) 10 is attached to the lower part of the box. A transport passage 22 formed in the bill validator 10 has an entrance 23.
And an outlet 24. The bill discriminating apparatus 10 has an entrance sensor for detecting insertion of a bill into the entrance 23, a conveying means for moving the bill 1 along the conveying passage 22, and a discriminating means for discriminating the bill. Omitted. Exit 24
Communicates with the transport passage 25 of the bill stacker device 20 formed between the pushing device 30 and the case 40. While the bill 1 inserted into the entrance 23 of the bill discriminating device 10 is being conveyed along the transport passage 25, the authenticity of the bill 1 is determined by the discriminating means provided in the bill discriminating device 10, and the bill discriminating device 10 The banknote 1 determined to be a true banknote is sent from the outlet 24 to the transport passage 25. When the bill 1 is sent from the bill discriminating device 10 to the transport passage 25, the storage control device 50 starts rotating the motor 36a at an appropriate timing to the case 40, and the sent bill 1 is actuated by the operation of the pushing device 30. It is stored in a state of being stacked on the case 40.

At the time of using the bill stacker according to the present invention, the process proceeds to step 100 from the start of FIG. 7, and when the bill 1 is inserted into the entrance 23 of the bill validator 10, the bill is generated by the entrance sensor provided at the entrance 23. The output is given to the storage control device 50,
The storage control device 50 detects insertion of the bill 1. Next, proceeding to step 101, the storage control device 50 determines whether or not the push plate 31 of the push device 30 is at the return position by the return detection sensor 39 that detects the return position of the push plate 31, as shown in FIG. Or to detect. Restoration detection sensor 39 sends a the return position signal v ₁ pushing plate 31 is in the return position to the storage control device 50. When the push plate 31 is not at the return position in step 101, the motor 3
The driving device 36 is operated by the reverse rotation of 6a, and the pushing plate 31 is moved to the second position.
Return to the return position in the figure (step 200). At this time, the time required for the push plate 31 to move to the return position is set (step 201), and the storage control device 50 uses the return detection sensor 39 to return to the return position (home position) in step 202.
It is determined whether or not has returned. When the pressing plate 31 returns to the return position (home position), the process proceeds from step 202 to step 102. If the push plate 31 does not return to the return position (home position), it is determined whether or not the time set in step 201 has been exceeded (step 203). ). If the set time is not exceeded, the process returns to step 202, and if the set time is exceeded, the process proceeds from step 203 to 133 as an error.

The bill validator 10 transports the bill 1 inserted from the entrance 23 through the transport passage 22 and checks the optical characteristics of the bill 1 such as the amount of transmitted light, and determines whether the amount of transmitted light is within the set value range. Is determined (step 102). If the transmitted light amount of the inserted banknote 1 in step 103 is out of the predetermined level, the banknote discriminating apparatus 10 does not determine the banknote 1 as a true bill and returns the banknote 1 to the entrance (step 104). step 1
When the transmitted light amount of the inserted bill 1 at 03 is at a predetermined level and it is determined that the bill is a true bill, the process proceeds from step 103 to 105, and the bill validator 10 sends the bill 1 from the outlet 24 to the transport passage 25.

When the banknote 1 is sent from the banknote discriminating apparatus 10 to the transport path 25 of the banknote stacker apparatus 20, the storage control apparatus 50 sends an operation signal to the driving device 36 at an appropriate timing, and the motor 36a
Operation is started, and the rotation sensor 38 of the encoder 37 is started.
Is set to N = 0, and the number of pulses from the rotation sensor 38 is counted (step 106). The forward rotation of the motor 36a rotates the small gear 36b, the reduction gear 36c, and the screw shaft 36d, and moves the female screw portion 35c downward along the screw shaft 36d. When the female screw portion 35c moves downward, the transmission link 35 pushes the connecting pin 35a in a direction away from the screw shaft 36d, so that the two link members 32 and 33 are operated in the opening direction, and the pushing plate 31 is pushed in the pushing direction. To move forward. At the same time, the rotation sensor 38 detects the number of pulses generated when the encoder 37 rotates, and the pulse number signal v ₂ is sent to the storage control device 50.

In steps 107 to 114, the motor 36a is
2 shows a process of detecting the rotation speed of the camera. That is, the encoder 37
The rotation sensor 38 alternately detects “Lo-pulse” and “Hi-pulse” by the rotation of “
-Pressing plate
The full state can be detected by detecting the moving speed of 31. That is, in step 107, the rotation sensor 38 sets a timer for the output time of the low-level pulse “Lo-pulse”, and determines the limit value of the time for maintaining the “Lo-pulse” level. In step 108, the rotation sensor 38 determines whether or not a high-level pulse “Hi-pulse” has been received, and when the rotation sensor 38 generates a high-level output, in step 109, a timer for the high-level output time is set. Then, the limit value of the time for maintaining the “Hi-pulse” level is determined.

If a high-level pulse has not been received in step 108, it is determined in step 113 whether the output of the low-level pulse has passed the time set by the timer in step 107. If the time set by the timer has not elapsed and the low-level pulse does not have the given pulse width, the process returns to step 108. When a pulse at the lung level is detected in step 108, the process proceeds to step 109. In step 113, when the low-level pulse exceeds the given pulse width and a predetermined time has elapsed, the process proceeds to step 115.

Proceeding from step 109 to 110, it is determined whether or not the pulse is a low-level pulse. If the pulse is a high-level pulse, the process proceeds to step 114. It is determined whether the pulse width has been exceeded. If the time set by the timer in step 109 has not elapsed, the process returns to step 110, and if the time exceeds the given pulse width and the timer has elapsed, the process proceeds to step 115. If it is determined in step 110 that the pulse is a low-level pulse having a pulse width that does not elapse for a predetermined time, the process proceeds to step 111, where 1 is added to the pulse count N to count N + 1. This is because when the pressing plate 31 reaches a position corresponding to the position where the pulse number N has been counted, 1 is added to N, and at step 112, N> N
This is to confirm cr. In step 112, N> Ncr
In the case of, the pushing plate 31 reaches N = Ncr and the bill 1 is
It is determined that the pushing position at the time of filling is exceeded when pushing into 0, and the routine proceeds to step 115. In step 112, N> Ncr
If not, it is determined that the pushing plate 31 is not sufficiently moved, and the process returns to step 107.

Since banknote 1 has already been stored in case 40, step
At 115, the motor 36a is reversed, and at step 116, the reverse rotation time of the motor 36a is set. When the motor 36a is reversed, the small gear 36b, the reduction gear 36c, and the screw shaft 36d are reversed, and the female screw portion 35c is moved upward along the screw shaft 36d. When the female screw portion 35c moves upward, the transmission link 35 pulls the connecting pin 35a in a direction approaching the screw shaft 36d. At the same time, the rotation sensor 38 detects a pulse generated when the encoder 37 rotates, and the pulse number signal v ₂ is sent to the storage control device 50.

In step 117, the push-in plate 3 is detected by the return detection sensor 39.
It is determined whether 1 has been returned to the return position (home position). When returning to the return position (home position),
When the operation of the motor 36a is stopped (step 118), the comparison means of the storage control device 50
Are compared with the minimum pulse number Nmin necessary for storing the bill and the limit pulse number Ncr when the banknote is full. When the case 40 is less than full, the push plate 31
By the operation of 36a, the bill 1 can be pushed into the case 40 with a sufficient stroke. In this case, the storage control device 50
When the pulse number N detected by the rotation sensor 38 is larger than the minimum pulse number Nmin and larger than the limit pulse number Ncr, the comparison means determines that storage is possible. However, when the pulse number N detected by the rotation sensor 38 is smaller than the minimum pulse number Nmin even when the driving device 36 is operated for a predetermined time or longer, the comparing means determines that the banknote 1 is jammed or has failed. The comparing means of the storage control device 50 determines that the pulse number N detected by the rotation sensor 38 is equal to the minimum pulse number Nmin.
If it is larger than the limit pulse number Ncr, case 40
Output a full detection signal because the banknotes cannot be stored any more.

In step 119, the storage control device 50 determines whether or not N> Nmin. If this condition is satisfied, it is determined that the banknote has been stored. Next, in step 120, N> Ncr
If this condition is satisfied, it is determined that the state is not full, and the process returns to the start.

If the push plate 31 is not at the return position (home position) in step 117, the process proceeds to step 131, and step 116
It is determined whether or not it has returned to the return position within the time set in.
If the set time is not reached, the process returns to step 117. If the set time has elapsed, the process proceeds from step 131 to 132, where the operation of the motor 36a is stopped, and in step 133, the comparing means outputs a stacker error signal. It may not be storing bills inside the case 40 in N> Nmin next reliably in step 119, and outputs a stacker error signal v ₃ in step 133. If N> Ncr and the pushing plate 31 does not move with the predetermined stroke in step 120,
Proceeds to 130, comparison means outputs a stacker full signal v _4.

 The operational effects of the present embodiment are as follows.

The number of pulses is counted by the rotation sensor 38, so that the full state can be reliably detected.

It is not necessary to provide a full detection means such as a sensor or a microswitch on the case 40 side.

It is possible to distinguish and detect the full state and the jamming state or the failure state when the banknote 1 is stored.

Since the motor 36a is not locked by the overload when the banknote 1 is stored, the electric load and the mechanical load applied to the driving device 36 are small.

There is no need for electrical wiring from the pushing device 30 to the case 40 side,
There is no need to remove the wiring when removing the case 40.

The space for storing the banknote 1 in the case 40 is not restricted.

Effect of the Invention As described above, the bill stacker device according to the invention can reliably detect the full state of the bill in the case by detecting the pulse of the rotation sensor without providing a full detection sensor on the case side. The case is easy to handle and does not apply excessive electrical and mechanical loads to the driving device. For this reason, there are few failures that occur in the bill stacker device, and the service life can be extended.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an electric control circuit used in the bill stacker device according to the present invention, and FIG. 2 is a cross-sectional view showing an embodiment of the bill stacker device according to the present invention holding the pushing plate at the return position. FIG. 3 is a cross-sectional view showing a state in which the pushing plate has moved to the storage position, FIG.
Fig. 6 is a sectional view of the pushing device, Fig. 6 is a plan sectional view of the pushing device and the case, and Figs. 7 (a) and 7 (b) are flowcharts showing an operation sequence of the storage control device. 1 ... bill, 10 ... bill validator, 20 ... stacker device,
30… Pressing device, 31… Pressing plate, 36a …… Motor, 36b,
36c, 36d: power transmission means, 37: rotation pulse encoder, 38: rotation sensor, 39: return detection sensor, 40:
Case, 50 ... storage control device,

Claims (2)

(57) [Scope of request for utility model registration] 1. A pushing device having a case (40) for accommodating a bill (1), a pushing plate (31) for pushing the bill (1) into the case (40), and supporting the case (40) in a detachable manner. (3
0), a driving device (36) including a motor (36a) for moving the pressing plate (31) with respect to the case (40), and a driving device (3
Storage control device (5) that sends an operation signal or a stop signal to (6)
0), the rotation sensor for detecting the number of rotations of the output shaft of the motor (36a) of the driving device (36) or the power transmission means (36c, 36b, 36d) drivingly connected to the output shaft. (38) and a rotation sensor (38) provided in the storage control device (50) and corresponding to the minimum moving distance of the pushing plate (31) necessary for storing the banknote (1) in the case (40). The number of pulses is stored as the minimum number of pulses Nmin, and the bill (1) is stored in the case (4
0) A storage means for storing the number of pulses at the push position that has reached a full position when the push plate is fully loaded as a limit pulse number Ncr, and a rotation sensor provided in the storage control device (50) and moving the push plate (31). The storage control device (50) is provided with comparing means for comparing the number of pulses N detected in (38) with the minimum number of pulses Nmin necessary for storing the banknote (1) and the limit number of pulses Ncr when full. When the number of pulses of the rotation sensor (38) is set to 0 when the motor (36a) is operated, the number of pulses of the rotation sensor (38) is counted by operating the motor (36a). The number of pulses N detected by the rotation sensor (38) when the pushing plate (31) is moved by the device (36) to the pushing position where the bill (1) is stored in the case (40).
Is greater than the minimum pulse number Nmin and the limit pulse number Ncr
If it is larger, it is determined that it can be stored, and the rotation sensor (3
The number of pulses N detected in 8) is the minimum number of pulses Nmin
A bill stacker device for outputting a full signal (v ₄ ) in which the case (40) is full with the bill (1) when the number is larger and smaller than the limit pulse number Ncr. 2. The comparing means, when the number of pulses detected by the rotation sensor (38) is smaller than the minimum number of pulses Nmin,
Banknote stacker apparatus of claim outputting an error signal (v ₃₎ (1).