JPH0223909B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a coin dispensing device that separates and delivers a large number of coins that are not stacked and aligned one by one.

(Prior Art) In a conventional coin processing machine, such as a coin counting machine or a hard wrapping machine, this device sends out a large number of coins placed in a coin storage section and not stacked and aligned one by one to a sorting passage. , generally a rolling disk is used. In this system, the coins are caused to move along the peripheral wall by centrifugal force by the rotation of a rotating disk, and the coins are sent out one by one from a delivery section cut out in a part of the peripheral wall to the sorting passage.

Further, recently developed devices such as coin deposit machines and circulating coin deposit and withdrawal machines also use rotating disks as coin feeding devices.

However, in the case of a coin dispensing device using a rotating disk, the size of the rotating disk needs to be increased to a certain extent regardless of the amount of coins to be processed. Therefore, even if an attempt is made to make the device smaller in order to respond to the miniaturization of devices that have been developed in recent years, it has been impossible to make the diameter of the rotating disk smaller, so it has also been impossible to make the device itself smaller.

Therefore, as described in Japanese Utility Model Application Publication No. 57-161081, separating rollers are provided oppositely on the conveying surface of the conveying belt with an interval that allows one coin to pass through, and the conveying belt is aligned in the coin conveying direction. The conveyor belt and the separation roller are rotated in conjunction so that the opposing circumferential surface moves in the opposite direction to the rotation, and the coins conveyed in an overlapping state are separated and conveyed one by one by the rotation of the separation roller. As a result, a coin dispensing device that could be made smaller was devised.

(Problems to be Solved by the Invention) By the way, in the case of the above-mentioned coin feeding device using a conveyor belt and a separation roller, if a plurality of coins are interlocked between the conveyor belt and the separation roller, the coins will be sent in the opposite direction. It may happen that the overlapping state of the meshed coins cannot be resolved only by the force of sending back the coins by the rotating separation roller.

If a plurality of coins become interlocked between the conveyor belt and the separation roller, the coin jam becomes even more severe, and in some cases, it may lead to damage to the device. There is.

The present invention was made in view of the above-mentioned problems, and an object of the present invention is to provide a coin feeding device that can easily and reliably eliminate coin jamming between the conveyor belt and the separating roller. It is something.

[Structure of the invention]

(Means for Solving the Problems) The present invention provides separation rollers 27 that are arranged oppositely on the conveyance surface of the conveyor belt 24 with an interval that allows one coin to pass therethrough, so that the separation rollers 27 are arranged in opposition to each other in the coin conveyance direction of the conveyor belt 24. In a coin feeding device that separates and conveys coins conveyed in an overlapping state one by one by rotating the separation roller 27 so that the opposing circumferential surface moves in the opposite direction with respect to the forward rotation of the conveyor belt 24, A motor _M2 is provided to perform reverse rotational drive, and also to rotate and drive the separating roller 27 in a direction opposite to the coin feeding direction when the conveying belt 24 is rotationally driven in the coin feeding direction. 24 and the separation roller 27, and when the coin jam detection means detects a coin jam, the motor _M2 is driven in reverse. A motor drive control means 45 is provided to control the separation roller 27 from the motor _M2 .
In the power transmission system, the motor drive control means 45 transmits power from the motor M2 to the separation roller ₂₇ when the motor rotates in the normal direction, and transmits power from the motor _M2 to the separation roller 27 when the motor rotates in the reverse direction. A one-way clutch 27a is provided to interrupt the transmission.

(Function) In the present invention, when sending out coins, the motor drive control means 45 rotates the motor M ₂ in the forward direction, rotates the conveyor belt 24 in the coin sending direction, and rotates the separating roller 27 in the opposite direction to the coin sending direction. By rotationally driving, the coins are sent out one by one. On the other hand, when the coin jam detection means detects that a coin is jammed between the conveyor belt 24 and the separation roller 27, the motor drive control means 45 The motor M ₂ is reversed to rotate the conveyor belt 24 in the opposite direction to the coin feeding direction, and the one-way clutch 27 a provided in the power transmission system from the motor M ₂ to the separation roller 27 rotates the separation roller 27 . By interrupting the rotational drive in the coin feeding direction,
When the motor reverses rotation, the separation roller 27 does not send out the coins in the coin sending direction, and the conveyor belt 2
The coin jam is cleared by reversing step 4.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 and FIG. 2 show a coin dispensing device, and this coin dispensing device has a machine frame 1, and this machine frame 1 is provided with a receiving section 2 that opens on the top surface and receives coins C. There is also a coin C inside.
The processing section 3 of the machine frame 1 has a long length in one horizontal direction (horizontal direction in FIG. 1) and a long length in the coin width direction in the other direction. The length (in the front and back directions of the paper in FIG. 1) is configured such that the upper end is larger than the diameter of the denomination that can be processed, and the lower end is configured to have approximately the maximum diameter of the denomination that can be processed.

A first holding section 5 is provided in the receiving section 2 of the machine frame 1, and the first holding section 5 has a bottom surface formed by a first conveyor belt 6, and a side surface in the coin processing direction formed with a side plate 7. It is composed of a regulating member 8. The first conveyor belt 6 is stretched between a drive pulley 11 and a driven pulley 12 along the coin processing direction, and is driven to rotate clockwise in FIG. ₁ in the forward direction and counterclockwise by the motor M1. The coin C received on the first conveyor belt 6 is normally conveyed in the direction of the regulating member 8 and discharged from the end of the belt.

The regulating member 8 is rotatably mounted around a support shaft 15 at the upper end, and is rotatable in the counterclockwise direction in FIG. ) is the first conveyor belt 6
Rotation is restricted at a vertical position facing the top surface of the rear end 8.
b (upper end) is constantly biased clockwise by a tension spring 16 connected to the upper end. and,
When the coins C are conveyed in the direction of the restriction member 8 by the forward rotation of the first conveyor belt 6, this restriction member 8 restricts passage at the tip 8a even if a plurality of coins C are conveyed in piles. This prevents the stacked coins C from being ejected from the end of the first conveyor belt 6 all at once.

Further, a detection plate 18 having a detection piece 17 bent at its tip is protruded from the upper part of the regulation member 8, and this detection plate 17 intervenes between the photo sensors PS ₁ when the regulation member 8 is in a vertical state. to block light. This photo sensor PS ₁ is turned on when the detection piece 17 is interposed in a light-blocking state, and turned off when the detection piece 17 is moved and the light is emitted. When the photo sensor PS ₁ is turned off, the first conveyor belt 6 is driven to rotate in the opposite direction, and the first conveyor belt 6 and the regulating member 8 are rotated in the opposite direction.
This prevents the coin C from getting stuck between the

Further, a photo sensor PS ₂ is disposed on the machine frame 1 in the coin width direction facing the upper surface of the first conveyor belt 6 at a position where the coin C received from the receiving section 2 falls, and this photo sensor PS ₂ is off when light is transmitted, and is turned on when the coin C falls onto the first conveyor belt 6 and blocks light, and this on causes the second conveyor belt 24, which will be described later, to be driven.

Coins C released from the first conveyor belt 6
is an introduction chute 21 whose width becomes narrower along the bottom.
and is received into the second storage section 23 via the side plate 22. The second holding section 23 is constructed such that the coin width direction thereof is slightly wider than the maximum diameter coin conveying diameter of the denomination to be processed, and the bottom surface is connected to the second conveying belt 2.
It is composed of 4. This second conveyor belt 24 is stretched along the coin processing direction below the first conveyor belt 6 with a drive pulley 26,
It is designed to be rotated in forward and reverse directions by a motor _M2 , and the coins C discharged onto the second conveyor belt 24 are conveyed to the left in FIG. 1 by the forward rotation.

Further, a coin 1 is placed from the upper surface of the second conveyor belt 24 above the end of the second conveyor belt 24 in the sending direction.
Separation roller 2 with a predetermined interval that allows the sheets to pass through
7 are arranged opposite to each other, and this separation roller 27 is rotationally driven so that its outer peripheral surface moves in the opposite direction (counterclockwise direction) with respect to the conveyance direction of the upper surface of the second conveyor belt 24. Of the coins C that are sent in two or more piles by the conveyor belt 24, only the coins C that overlap are pushed back, and only one coin C is sent to the second coin C.
The sheets are passed between the second conveyor belt 24 and the separation roller 27 and released one by one from the end of the second conveyor belt 24. Further, a guide plate 28 is provided at an upper position facing the outer circumferential surface of the separation roller 27, and the guide plate 28 allows the guide plate 28 to rise upward as the separation roller 27 rotates and to jump over the separation roller 27. The coin C is returned to the second storage section 23.

The coin C ejected from the end of the second conveyor belt 24 is received by a receiving plate 31, and the received coin C is transferred to the lead-out belt 33 by the ejecting roller 32 that protrudes from the receiving surface of the receiving plate 31. Derive above. This lead-out belt 33 is adapted to convey the led-out coins C onto a discrimination path where coins are discriminated in a coin processing machine to which this coin feeder is installed, for example.

In addition, the separation roller 27 and the discharge roller 3
2 is a motor that drives the second conveyor belt 24;
One-way clutches 27a and 32a are provided in _the power transmission system from motor _M2 to separation roller 27 and discharge roller 32, respectively.
is being intervened. The one-way clutches 27a and 32a transmit power from the motor _M2 to the separation roller 27 and the discharge roller 32 when the motor _M2 rotates in the normal direction, and transmit power from the motor _M2 to the separation roller 27 when the motor _M2 rotates in the reverse direction.
And power transmission to the discharge roller 32 is interrupted to prevent it from rotating.

Further, a photo sensor PS ₃ and a photo sensor PS ₄ are installed at the upper and lower portions of the second storage section 23 facing the side plate 22.
A photo sensor PS 5 is disposed facing the upper surface of the second conveyor belt 24, and a photo sensor PS ₅ is disposed facing the upper surface of the second conveyor belt 24, and a photo sensor PS 5 is disposed facing the upper surface of the second conveyor belt 24 and the discharge roller 32.
A photo sensor PS ₆ is installed between the outer periphery of the
Each of the photo sensors PS ₃ to _{PS 6} is turned off when the light is emitted without a coin C inserted therein, and turned on when the light is blocked by the coin C.

Next, the configuration of the control section 40 will be explained based on the control block diagram shown in FIG.

The control unit 40 includes a central control unit (hereinafter referred to as CPU) 41 and a read-only memory (hereinafter referred to as ROM) 4 that stores coin processing programs and the like.
2, and a random access memory (hereinafter referred to as RAM) 43 having various memory flags.

The CPU 41 includes a drive control circuit 44 for the motor M 1 that controls the motor M ₁ that rotates the first conveyor belt 6 in the forward and reverse directions, and a drive control circuit 44 that controls the motor M ₁ that rotates the second conveyor belt 24 in the forward and reverse directions. At the same time, a drive control circuit 45 for the motor M ₂ serves as a motor drive control means for controlling the motor M ₂ that rotates the separation roller 27 and the discharge roller 32 in one direction.
are connected to each other, and each photo sensor PS ₁ to _{PS 6} is connected to each photo sensor.
Detection signals from PS ₁ to PS ₆ are input to the CPU 41. Further, the CPU 41 is provided with first to fifth timers counted by the CPU 41.

Although the details will be described later, in this embodiment, each of the photo sensors SP ₄ , SP ₅ , SP ₆ and the fourth
The timer constitutes a coin jam detection means for detecting a coin jam between the second conveyor belt 24 and the separation roller 27.

Next, the coin feeding operation will be explained based on the flowchart shown in FIG.

When the coin C is placed on the first conveyor belt 6 of the first holding section 5, the photo sensor PS ₂ is detected and turned on (step), and the motor of the second conveyor belt 24 is turned on by turning on the photo sensor PS ₂ . M ₂ is driven in forward rotation (step). This is because the CPU 41 receives the detection signal from the photo sensor PS ₂ , and the ROM 4
It will be held based on the program of 2. Subsequently, the motor _M1 is driven to rotate in the forward direction, and the coins C on the first conveyor belt 6 are sent to the second holding section 23 (step), and all the first to fifth timers (CPU
41) is reset (step).

Since the number of input coins C conveyed by the first conveyor belt 6 is large, the regulating member 8 rotates counterclockwise and the photo sensor PS ₁ is turned off (step), and the first timer is activated ( (Step), it is determined whether or not this first timer has elapsed for a predetermined period of time, for example, 3 seconds or more (Step);
If more than 3 seconds have elapsed, the photo sensor PS ₂
is on and photo sensors PS ₃ and PS ₄ are off (step).

As the regulation member 8 rotates, the coin C is falling from the end of the first conveyor belt 6, so the photo sensor PS ₃ or PS ₄ is on, and the second timer is reset ( step) (in this case the second timer is not started yet but is reset). Next, it is determined whether the photo sensor PS ₃ is on or not (step).
At this point, if the coin C is detected and turned on, the third timer is activated (step). Then, it is determined whether or not this third timer is longer than a predetermined time, for example, 0.5 seconds or more (step).

If the third timer time has not yet elapsed, then photo sensors PS ₄ and PS ₅ are on, and
It is determined whether the photo sensor PS ₆ is off (step), and if the coin C has not reached the photo sensor PS ₅ and the photo sensor PS ₅ is in the off state, the fourth timer is reset (step). Next, it is determined whether all of the photo sensors PS ₂ to _{PS 6} other than photo sensor PS ₁ are off (step), and since the coin C is currently flowing, one of the photo sensors PS ₂ to _{PS 4} is turned on. Therefore, the fifth timer is reset (step), and the process returns to the step to start the photo sensor.
It is determined whether PS ₁ is off. Then, in step, if the rotation of the regulating member 8 was instantaneous, the photo sensor PS ₁ is
is on, the first timer is reset (step). In other words, each timer continues to turn on or off only when its state is continuously detected during the repeated determination operation.

Next, the operation when the flow of coins C is stagnant will be explained.

If a large amount of coins C are sent by the first conveyor belt 6 and the coins C are stuck while pressing the regulating member 8, the photo sensor PS ₁ is turned off and the first timer is set for a predetermined period of time or more, for example, 3 seconds or more. (step), or the photo sensor PS ₂ is on and both photo sensors PS ₃ and PS ₄ are off, and the second timer operates (step);
When this second timer has elapsed for a predetermined period of time, for example 3 seconds or more (step), the motor _M1 is stopped (step) and the motor _M1 is reversed for a predetermined period of time, for example, 1 second (step), thereby regulating the motor. The coin C stuck between the member 8 and the first conveyor belt 6 is returned to the first holding section 5 to clear the coin jam, and after one second, the motor _M1 is stopped (step). Returning to _{step 1} , the motor M1 is rotated in the normal direction, and all timers are reset to continue coin conveyance. Note that, after the motor M ₁ is stopped, the regulating member 8 rapidly returns to its home position by the force of the tension spring 16, thereby pushing back the coins C and eliminating the coin jam.

Also, the coin C is stuck in the introduction chute 21, the photo sensor PS ₃ is turned on, and the third timer is set to 0.5, for example.
If more than a second has elapsed (step), motor M ₁ is temporarily stopped (step 〓〓), and when the photo sensor PS ₃ turns off again (step), the process returns to step and motor M ₁ is rotated forward. Continue coin conveyance and reset the third timer at step 〓〓.

Further, the coins C become stuck in the second holding section 23, that is, the coins C get stuck between the conveyor belt 24 and the separating roller 27, and the coins stop being sent out from the conveyor belt 24, causing both the photo sensors PS ₄ and PS ₅ to When the photo sensor PS ₆ turns off (step)
The fourth timer is activated (Step 〓〓), and if this fourth timer continues for a predetermined time or more, for example, 2 seconds or more (Step 〓〓), that is, each photo sensor SP ₄ , SP ₅ , SP ₆ and the fourth When a coin jam is detected by the coin jam detection means consisting of a timer, motor _M2 and motor
At the same time as stopping _M1 (Step 〓〓), only motor _M2 is reversed for a predetermined period of time, for example, 1 second (Step 〓〓). This reversal of the motor _M2 causes the separation roller 27 interposed between the one-way clutch 27a to
does not rotate, but only the conveyor belt 24 reverses,
Coins C stuck between the conveyor belt 24 and the separation roller 27 are removed. Thereafter, the reverse rotation of the motor M ₂ is stopped (Step 〓〓), and the process returns to the step again to rotate the motors M ₂ and M ₁ in the normal direction to continue coin conveyance.

Next, the operation when all the coins C are gone will be explained.

When all of the photo sensors PS ₂ to PS ⁶ are turned off, a fifth timer is activated (step), and when this fifth timer continues for more than a predetermined time, for example, 3 seconds or more (step), it is determined whether the photo sensor PS ₁ is on ( step), photo sensor
If PS ₁ is on, motors M ₁ and M ₂ are stopped (step 〓〓), and the operation of this feeding device is completed. Furthermore, if the photo sensor PS ₁ is off, the fifth timer is reset (step 〓〓), and then the process returns to step 3. If the photo sensor PS 1 remains off for more than 3 seconds, the motor M ₁ is reversed again as described above to remove the coin jam. Eliminate.

Note that the feeding operation started when the photo sensor PS ₂ detected that the coin C was inserted into the first holding section 5, but instead of this, when a separate receiving command was obtained, or when a separate The motors M ₁ and M ₂ may be started when the bottom of the provided storage section opens.

In addition, in the above-mentioned embodiment, the structure that characterizes the present invention, that is, the coin feeding device consisting of the conveyor belt 24, the separation roller 27, the one-way clutch 27a, the motor _M2 , etc., is replaced with another structure, that is, the first conveyor belt 6, etc. An example of a combination is shown.

〔Effect of the invention〕

According to the present invention, when sending out coins, the motor drive control means rotates the motor in the forward direction, rotates the conveyor belt in the coin sending direction, and
By rotating the separation roller in the opposite direction to the coin feeding direction, the coins are sent out one by one. On the other hand, when the coin jam detection means detects a coin jam, the motor drive control means reverses the motor and rotates the conveyor belt. The conveyor belt and the separating roller are driven to rotate in the opposite direction to the coin feeding direction, and the one-way clutch installed in the power transmission system from the motor to the separating roller interrupts the rotational driving of the separating roller in the coin feeding direction. Even if a coin jams between the machine and the machine, it will detect the coin jam and automatically reverse the motor.
Only the conveyor belt can be reversed without rotating the separation roller, which allows coin jams to be easily and reliably cleared, guarantees a stable coin separation and feeding function, and prevents damage to the device. can.

[Brief explanation of drawings]

The figures show one embodiment of the coin dispensing device of the present invention, FIG. 1 is a front view with one side of the machine body removed, FIG. 2 is a side view, and FIG. 3 is a block diagram showing the configuration of the control section. 4 are flowcharts. 24...Conveyance belt, 27...Separation roller, 2
7a... One-way clutch, 45... Drive control circuit as motor drive control means, C... Coin,
_M2 ...Motor.

Claims (1)

[Scope of Claims] 1 Separation rollers are disposed opposite to each other on the conveying surface of the conveying belt with an interval that allows one coin to pass therethrough, and the opposing circumferential surface is In a coin dispensing device that separates and conveys coins that are conveyed in an overlapping state one by one by rotating a separation roller so as to move in the opposite direction, the conveyor belt is rotated in forward and reverse directions, and the conveyor belt is rotated in a forward and reverse direction. a motor that rotates the separating roller in a direction opposite to the coin feeding direction when rotationally driven in the coin feeding direction; and a coin jam detection means that detects that a coin jam has occurred between the conveyor belt separation roller. a motor drive control means for driving the motor in reverse when a coin jam is detected by the coin jam detection means; and a motor drive control means in a power transmission system from the motor to the separation roller. A coin feeding device characterized by comprising a one-way clutch that transmits power from the motor to the separation roller when the motor rotates in the normal direction, and interrupts power transmission from the motor to the separation roller when the motor rotates in the reverse direction.