JPS6343580Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The invention relates to an intermittent coin feeding device in a coin processing machine, and in particular, to a device that leaves a predetermined interval between coins that are continuously fed into a coin passage. , a coin handling machine (coin counting machine, coin sorting machine, or coin sorting machine) that transfers spaced coins to the downstream side of the coin passage and performs processing such as counting, identification, sorting, stacking, etc. Coin deposit machine applied and incorporated as a receiving device,
Coin wrapping machines and the like are collectively called coin processing machines. ) relates to an intermittent coin feeding device that transfers coins at intervals that do not hinder coin processing.

(Prior Art) A conventional device for conveying coins at predetermined intervals consists of a transfer belt that faces the top of a coin passage and is wound between a pulley at the start end and a pulley at the rear end, and a pulley at the start end. There is a gripping roller which is provided at a position immediately before the transfer belt and is driven at a circumferential speed slower than the circumferential speed of the transfer belt, and the speed difference between the two is used to increase the interval between coin feedings. .

In this case, in order to ensure stable conveyance of coins, the gripping roller and the start end pulley of the transfer belt are usually provided as close as possible.

(Problem to be solved by the invention) However, according to the above-mentioned conventional device, when a coin enters under the gripping roller, the tip of the coin falls under the starting end pulley of the transfer belt while in contact with the gripping roller. Because the circumferential speed of the transfer belt is faster than the circumferential speed of the gripping roller, when a coin is transferred at the circumferential speed of this transfer belt, a slip occurs between the coin and the gripping roller. Furthermore, when a coin moves at the circumferential speed of the gripping roller, a slip occurs between the coin and the transport belt.

Therefore, in the conventional device described above, each time a coin is transferred from the gripper roller to the transfer belt,
It is inevitable that slips occur between the gripper roller and the coin, and between the transfer belt and the coin, and the gripper roller and transfer belt are prone to wear due to friction with the coins. Also, depending on whether slips occur on the gripping roller side or on the transfer belt side during transfer, the feeding interval of the coins sent to the coin passage changes, which can lead to various unfavorable results in processing. It had the disadvantage of bringing

In view of this, the present invention was developed with the aim of eliminating the drawbacks of the above-mentioned prior art.It prevents slippage between the gripping roller and the transport belt and the coin, and the coin is transported at a predetermined feeding interval. To provide an intermittent feeding device for coins in a coin processing machine, which allows coins to be fed through a coin passage reliably.

[Structure of the idea]

(Means for Solving the Problems) In order to achieve the above object, there is a coin transporting body arranged along a coin passage for transporting coins, and a coin transporting body disposed in front of the coin transporting body for transporting coins by holding the coins in its mouth. a gripping roller that feeds the coin into the body, a drive shaft that rotates the gripping roller at a circumferential speed slower than the circumferential speed of the coin transfer body, and a gripping roller that rotates the gripping roller by this drive shaft in the direction of increasing speed in the rotational driving direction. The structure includes a one-way clutch that allows the roller to rotate freely.

(Function) With the above configuration, the coin that has entered under the gripping roller is first transferred toward the transfer belt at the circumferential speed of the gripping roller, and then the tip of the coin is moved under the pulley on the start end side of the transfer belt. When it is gripped, it is pulled at a peripheral speed of the transfer belt that is faster than the peripheral speed of the gripping roller. At this time, since the gripping roller is equipped with a one-way clutch that can freely rotate to the speed increasing side, the gripping roller rotates according to the circumferential speed of the transfer belt, and transfers the coin and the gripping roller, or the coin and the coin. There is no slippage between the belts.

(Embodiments) The present invention will be described below with reference to embodiments shown in the drawings.

Fig. 1 shows an example of the structure of a coin passage and its surroundings of a coin processing machine to which the present invention is applied, and Fig. 2 shows an example of the structure of the coin passage and its surroundings.
The drive system shown in the figure is shown, and FIG. 3 shows a cross section taken along the line shown in FIG. The centrifugal force of the drive aligns the coins C along the peripheral wall 2, sequentially sends the coins C onto the coin passage 3 provided in the tangential direction of the rotating disk 1, and performs a process of ejecting and sorting predetermined coins. ing.

The coin passage 3 includes a passage bottom plate 4 having approximately the same surface as the upper surface of the rotating disk 1, and passages located on the left and right sides of the passage bottom plate 4 and forming a passage width corresponding to the diameter of the largest coin among the coins to be processed. It consists of side plates 5, 5. In some cases, one of the passage side plates 5, 5 is movable in the passage width direction so that the passage width can be adjusted according to the type of denomination to be processed.

Along the longitudinal direction of the coin passage 3, a rotating disk 1
A coin transport body 9 is provided near the periphery of the coin passage 3 and at a position protruding from the end of the coin passage 3, the coin transport body 9 having a transport belt 8 wound around pulleys 6 and 7 which are respectively supported by support means (to be described later). The lower surface of the belt 8 is pressed against the upper surface of the coin C on the coin passage 3 with a predetermined contact pressure, and the belt movement of the transfer belt 8 transports the coin C toward the end of the coin passage 3. .

A discriminator for identifying the denomination of the coin C is provided in the coin passage 3 near the pulley 6 on the upstream side thereof. In the illustrated embodiment, the denomination of the coin C is determined by detecting two elements, its material and diameter, and a magnetic sensor for detecting the material of the coin C is provided immediately downstream of the pulley 6. 10
is installed in the detection hole 11 of the passage bottom plate 4, and a pair of left and right image sensors 12, 12 for detecting the outer diameter of the coin C are provided immediately downstream of the magnetic sensor 10. The image sensors 12, 12 are light-receiving elements that receive light from a light emitter 12' that is emitted through detection holes 13, 13 formed in the passage bottom plate 4, and are shielded by the outer diameter of the coin C passing between them. The area determines the type of coin.

Near the end of the coin passage 3, a conveying coin branching device 14 is provided on the downstream side of one or two coins from the installation position of the image sensors 12, 12.

This branching device 14 has a longitudinal length slightly longer than the diameter of the largest coin to be processed, and has a notch with a residual bottom plate 4A of about 1/3 of the passage width left on one side and open on the other side. A shaped coin ejection hole 15 and a width of the ejection hole 15 that is approximately the same as the remaining bottom plate 4A are located in the coin passage 3 and are inserted into the remaining bottom plate 4.
A movable passage bottom member 16 having a bottom plate constituting surface portion 16A that cooperates with A and allows non-ejected coins to pass, and a position where this bottom member 16 is placed in the same plane as the passage bottom plate 4 (position shown by solid line in FIG. 5); and coin aisle 3
position to move outward from the passage width range (5th position)
It consists of an electric drive unit 17 for moving it across the position shown by the chain line in the figure. In the embodiment shown in the figure, the movable passage bottom member 16 (as shown in the fifth figure) has an arm 16B established on its outer upper surface, and the upper end of this arm 16B is connected to the fixed member 18.
This arm 1 is pivotally supported by a pin 19.
A plunger 17B of a solenoid 17A serving as an electric drive unit 17 is connected to the midpoint of the solenoid 6B. 20 is a return spring, and 21 is a stopper for determining the return position.

At a position almost directly above the coin ejection hole 15,
A driven pulley 22 as a pressing rotating body is provided in pressure contact with the upper side of the lower running side of the transfer belt 8,
When the coin C is ejected into the ejection hole 15 at this location, the existence of the driven pulley 22 provides a function of forcibly ejecting the coin C into the ejection hole 15.

A redirect box 23 is installed directly below the coin ejection hole 15, and the coins C ejected through the coin ejection hole 15 are collected in the redirect box 23 and can be returned.

The end of the coin passage 3 faces a belt conveyor 24 for conveying the coins C to a predetermined location, and a pulley 7 protrudes from the top surface of the belt conveyor 24 and the end of the coin passage 3. The vertical distance between the belt conveyor 24 is slightly smaller than the outer diameter of the coin to be processed, and there is a shutter plate (not shown) at the end of the belt conveyor 24.
4. It is now possible to temporarily hold coins on the top.
The end opposite to the coin discharging direction faces the reject box 23, and a shutter plate for preventing reject is also provided at this end. When the counted values do not match, the shutter plate for preventing rejects is opened, and the belt conveyor 24 is driven in reverse to collect the temporarily reserved coins into the reject box 23.

A detection mechanism 25 for sending coins C to the coin passage 3 at regular intervals is provided on the passage bottom plate 4 below the pulley 6 on the upstream side. This detection mechanism 25 is located on both sides of the transfer belt 8 as shown in FIG.
6A are notch holes 27, 27 bored in the passage bottom plate 4.
The intermediate portion is pivotally supported by a shaft 28 so that it can protrude upward from the passage bottom plate 4, and the lower part 26B of the detection lever 26 is opposed to the proximity switch SW (which may be other switches). The sensor 2 is normally closed by a spring 29.
6A is held in a position protruding above the passage bottom plate 4, and when the coin C passes, the lower part 26B of the detection lever 26 is separated from the proximity switch SW by being pushed by this, and a signal is transmitted. This is because when a succeeding coin presses the detection lever 26 before the coin C has passed through the image sensors 12, 12 (in the middle of being identified), a signal from the proximity switch SW that detects this pushes the solenoid 1
The setting is such that both coins are rejected by energizing 7A.

In the present invention, a gripping roller 30 and a gate roller 31 are sequentially arranged and provided in the immediate vicinity of the pulley 6 on the upstream side of the transfer belt 8. The distance between the gripping roller 30 and the gate roller 31 is set such that the pulley 6 and the gripping roller 30, and the gripping roller 30 and the gate roller 31 can contact each other at the same time for one coin C. .

The gripping roller 30 has a drive shaft 32 thereof.
A one-way clutch 33 that allows free rotation in the feeding direction is interposed between the two. This clutch 33, as an example of which is partially shown in FIG.
Several tapered grooves 30B are formed on the inner periphery of the rotating body 30A of the gripping roller 30.
A roller 30C (a ball may be used) is inserted between 0B and the outer periphery of the shaft 32 to ensure free rotation when the rotating body 30A rotates in the direction of the arrow, and when rotating in the opposite direction, the roller 30C and the groove 30B A device that rotates integrally with the shaft 32 due to the wedge action is used. Note that this one-way clutch 33 is not limited to this, and may have other configurations as long as it has a similar function.

The support means and drive system for the pulleys 6, 7, gripping roller 30, and gate roller 31 of the transfer belt 8 are shown schematically in FIG.
As shown in the horizontal cross section in each figure, rotation is transmitted from one drive motor 34 that drives the rotary disk 1. That is, the shaft 35
The support frame 36 is supported so as to be able to swing upwards around the
A shaft 37 of a gate roller 31 is inserted through and supported at the tip of the support frame 36, and this support frame 36 is biased downward (towards the back of the paper in FIG. 3) by a spring not shown, and the lowering position is determined by a stopper, and the rotating disk 1 is moved to a lower position. The gap between the upper surface and the gate roller 31 is defined to be slightly smaller than the thickness of one of the thinnest coins among the coins to be processed. Therefore, when the coin C enters under the gate roller 31, the support frame 36 floats upward around the shaft 35 against the spring, and as the coin C passes, it descends to its original position.

The shaft 32 of the gripping roller 30 is inserted and supported through the ends of support pieces 38, 38 which are supported so as to be swingable about the shaft 37 of the gate roller 31, and this support piece 38 is tensioned with a spring (not shown). The supporting piece 38 is urged downward, and the lowering position is determined by the stopper on the main body side, and the thinnest coin 1 among the coins to be processed is placed between the rotating disk 1 and the gripping roller 30.
When the coin C enters under the holding roller 30, the support pieces 38, 3
8 floats upward around the shaft 37 against the spring,
It is designed to descend to its original position as the coin C passes. Therefore, the gripping roller 30 and the gate roller 31 move up and down independently.

A shaft 39 driven by a drive motor 34 is provided with a small diameter pulley 40 with a radius r ₁ and a large diameter pulley 41 with a radius r ₅ . A belt 44 is stretched through a shaft pulley 43, and a belt 47 is stretched around another pulley 45 on the shaft 35 of this pulley 42 and a pulley 46 on the shaft 37 of the gate roller 31. Also, gate roller 3
1 and the gripping roller 30, each pulley 31
A belt 49 is placed between A and 48 so that they are rotated in the same direction and at the same speed.

A belt 53 is hung between the large-diameter pulley 41 and the pulley 51 on the shaft 50 on the tip side of the coin transfer body 9 via a tension pulley 52, so that the transfer belt 8 is moved in the direction of the arrow. ing.

Note that the radius of each pulley and each roller described above has the following relationship.

Radius of pulleys 40 and 42 = r ₁ , pulley 45
radius = r ₂ , radius of pulley 46 = r ₃ , radius of gripping roller 30 and gate roller 31 = r ₄ , radius of pulley 51 = r ₃ , radius of pulley 7 = r ₄ .
It is assumed that the radius of the pulley 41 = r ₅ , the radius of the pulley 31A = the radius of the pulley 48 , and the angular velocity of the shaft 39 w.

According to this, the circumferential speed v ₁ of the gripping roller 30 and the gate roller 31 is v ₁ =w・r ₂・r ₄ /r ₃ , and the circumferential speed v ₂ of the transfer belt 8 is v ₂ =w・_r5・_r4 / _r3 . The peripheral speed v ₃ of the rotating disk 1 is the peripheral speed v ₂ of the transfer belt 8
The circumferential velocity _v3 is set to a value sufficient to send the coin to the coin passage 3 by centrifugal force.
Since this peripheral speed v ₃ is insufficient for the peripheral speed v ₁ of the gripping roller 30 and gate roller 31, v ₃ >
v ₁ is required, and the relationship v ₃ =v ₂ with respect to the peripheral speed v ₂ of the transfer belt 8 is assumed. Therefore, v ₁ : v ₂ = r ₂ : r ₅
Therefore, r ₅ is approximately twice as large as r ₂ .

Next, the operation of the above embodiment will be explained.

Taking the case where the above embodiment is used as a coin deposit machine as an example, a coin C fed from above the rotating disk 1 passes through the magnetic sensor 10 and the discriminator of the image sensors 12, 12, and the material and outer diameter are determined. If the identified coin C is a coin other than the set denomination, such as a fake coin, the above-mentioned identifier 1
Based on the identification signals from 0 and 12, the solenoid 17A of the conveying coin branching device 14 is energized, which pulls the plunger 17B, so that the movable passage bottom member 16 rotates backward as shown by the chain line in FIG. Fully open the discharge hole 15.

The preceding coin C ₁ is inserted into the movable passage bottom member 16.
When the opening operation starts, the tip of the coin is already on the rear edge of the discharge hole 15, as shown in FIG.
C ₁ advances as it is without falling into the discharge hole 15 and is dropped onto the belt conveyor 24 from the end of the coin passage 3. When the coin C ₂ to be removed following this coin C ₁ reaches the ejection hole 15, since the movable passage bottom member 16 is completely in the retreat position at this time, it falls downward from the ejection hole 15. Reject box 23 through a chute (not shown)
will be collected within. If the next coin is a coin that you want to pass through the discharge hole 15, the solenoid 17A is de-energized based on the identification signal, and the movable bottom member 16 advances and returns to the passage 3, but at the end of the return, the coin that you want to pass through It is sufficient that the process is completed just before the liquid is fully placed on the discharge hole 15.

On the other hand, regarding the coin C ₃ that has entered the coin passage 3 from the rotating disk 1, the coin C ₃ is transferred to the transfer belt 8.
When the detection lever 2 is gripped by the lower surface of the starting end of
6 and 26 and press down. At this point, if the preceding coin C ₂ is still in the position blocking the discriminators 10 and 12, it is detected that the coins C ₂ and C ₃ are abnormally close, and the detection signal is input and the solenoid 17A is activated. The movable passage bottom member 16 is energized and moved out of the discharge hole 15.
is opened, and both the coins C ₂ and C ₃ are discharged from the discharge hole 15.

Every time a normal coin passes through the discriminators 10, 12, a count signal is issued, the number of coins for each denomination is added up, and the deposited amount is displayed. The count signal is input to the drive motor (pulse motor) of the belt conveyor 24, and the conveyor 24 is intermittently moved in the direction of the arrow at a pitch of about 1/2 of the minimum coin diameter. The coins on top are conveyed in a partially overlapping state, sent to the end, and temporarily held.

When the user presses the deposit button, the belt conveyor 24 moves at a faster speed than when the coins are temporarily held, and a shutter plate (not shown) opens to take the coins held on the belt conveyor 24 into a money box or the like. .

When the user presses a cancel button that prevents deposits, a shutter plate for preventing reject is opened, the belt conveyor 24 is driven in the opposite direction, and the suspended coins are returned to the reject box 23. The user pulls out the redirect box 23 to take out coins.

Next, gripping roller 30 and gate roller 3
1, when a coin on the rotary disk 1 enters under the gate roller 31, it is sent by the rotational speed of the gate roller 31, which is rotating at a circumferential speed _v1 , and then transferred to the gripping roller 30. Go below. Since the gripping roller 30 is also rotating at the same speed as the gate roller 31, the coin C ₄ is sent to the lower surface of the starting end of the transfer belt 8, but the circumferential speed of the transfer belt 8 is lower than the circumferential speed v ₁ of the gripping roller 30. Since the coin C 4 is moving at a high circumferential speed v ₂ , the coin C ₄ is rapidly sent over the coin path 3 . Therefore, the preceding coins are conveyed at intervals with respect to the coins conveyed from the gate roller 31 under the gripping rollers 30,
Discharge from the discharge hole 15 will not be hindered. Coins on the upstream side of the gate roller 31 are held on the rotating disk 1 and wait to be gripped by the lower surface of the gate roller 31.

When a coin is transferred from the gripping roller 30 to the lower surface of the starting end of the transfer belt 8, the coin is rapidly pulled by the frictional force of the transfer belt 8, and the rear part of the coin is still in contact with the gripping roller 30. However, since the gripping roller 30 is equipped with a one-way clutch 33, the coin will be rotated idly by the pulled coin, preventing slippage between the gripping roller 30 and the coin. This prevents the gripping roller 30 from being worn out.

In the above description, the coin transport body 9 has been shown to have a belt structure, but it may also be constructed by a row of rollers, and by providing a gate roller 31, the coin can be held in its mouth and transferred under the rollers 30 reliably. Although it can be fed at a constant speed, this gate roller 31 is omitted and the rotating disk 1
It is also possible to use the rotation of . Furthermore, although the illustrated example shows a case in which the present invention is applied to a device that discharges and sorts predetermined coins from a discharge hole, it is of course applicable to devices that process other coins.

[Effect of idea]

As explained above, the intermittent coin feeding device according to the present invention leaves a predetermined interval between the coins that are continuously fed into the coin passage, transfers the coins to the downstream side of the coin passage at regular intervals, counts them, In a coin processing machine that performs necessary processing such as identification and sorting, there is a coin transfer body arranged along the coin passage for transferring coins, and a coin transfer body disposed in front of the coin transfer body to transfer the coins by holding the coins in its mouth. A gripping roller that feeds coins into the body, a drive shaft that rotates the gripping roller at a circumferential speed slower than the circumferential speed of the coin transport body, and a drive shaft that is interposed between the drive shaft and the gripping roller, The gripping roller is provided with a one-way clutch that freely rotates the gripping roller on the increasing speed side in the rotational drive direction, and the gripping roller is moved at a circumferential speed corresponding to the transport speed of the coin gripped under the coin transporting body. Since the following rotation is made, when a coin is placed across the coin transporting body and the coin transporting body, slips will not occur due to the accelerated rotation of the gripping roller, and therefore, the coin transporting body and the coin transporting body will not slip. It is possible to prevent wear and tear, and since slips do not occur, the coin feeding interval can be maintained reliably.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an example of a coin passage section of a coin processing machine to which the device of the present invention is applied, Fig. 2 is a configuration diagram showing an example of the same drive system, and Fig. 3 is a sectional view taken along the line - Fig. 2. , FIG. 4 is a partial sectional view of an example of the one-way clutch used in the gripping roller shown in FIG. 1, FIG. 5 is a sectional view taken along the line shown in FIG. . 1... Rotating disk, 3... Coin passage, 4... Passage bottom plate, 4A... Remaining bottom plate, 5... Passage side plate, 8...
...Transfer belt, 9...Coin transfer body, 10...Magnetic sensor, 12...Image sensor, 14...Transporting coin branching device, 15...Coin discharge hole, 16...Movable passage bottom member, 23...Rigid Ectobox,
24... Belt conveyor, 25... Detection mechanism, 2
6... Coin detection lever, 30... Gripping roller, 31... Gate roller, 32... Drive shaft, 3
3... One-way clutch, 34... Drive motor.

Claims (1)

[Scope of utility model registration request] In a coin handling machine that leaves a predetermined interval between coins that are continuously fed into a coin passage, transfers them to the downstream side of the coin passage at a certain interval, and performs necessary processing such as counting, identification, sorting, etc. a coin transporting body disposed along the coin passage to transport coins; a gripping roller disposed immediately before the coin transporting body for gripping coins and sending them to the coin transporting body;
A drive shaft that rotationally drives the gripping roller at a circumferential speed slower than the circumferential speed of the coin transporting body, and a drive shaft that is interposed between the drive shaft and the gripping roller to increase the rotational driving direction of the gripping roller by the drive shaft. The fast side is equipped with a one-way clutch that allows the gripping roller to rotate freely, so that the gripping roller follows the rotation at a circumferential speed corresponding to the transport speed of the coin gripped under the coin transporting body. A coin intermittent feeding device in a coin processing machine characterized by the following.