JP3706241B2 - Coin feeding device, coin processing device and coin feeding method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a coin feeding device, a coin processing device, and a coin feeding method used in a vending machine and a coin counting device, and more particularly to a device and a method in which a rotating surface on which a coin rotates is inclined.
[0002]
[Prior art]
  As shown in FIG. 9, the coin processing device 130 separates coins one by one and sends out coins to the next stage from the feeding unit, or a coin that discriminates the type of coins provided in the middle thereof. Identification device 131WithThere are a transport unit 132, a coin sorting device 133 that sorts coins from the transport unit 132 according to the type based on a signal from the coin identification device 131, and the like. A conventional coin feeding device 101 in a coin processing device stores received coins in a hopper case 102 provided in the coin feeding device 101, and the stored coins one by one on a protrusion 103 </ b> A provided on a rotating disk 103. Place and scrape to separate. In the coin feeding device 101, the rotating disk 103 is arranged such that the rotating surface thereof is inclined with respect to the horizontal plane.
[0003]
[Problems to be solved by the invention]
  In order to increase the number of coins processed by the coin processing device per time, first, the number of coins that are fed out by the coin feeding device 101 and processed by the transport unit may be increased.
[0004]
  In order to achieve this object, measures have been taken such as eliminating the loss of processing time by increasing the supply of coins to the coin feeding device 101 and increasing the rotational speed of the rotating disk 103. However, due to these measures, a phenomenon in which the coin feeding device 101 has a flawing failure has occurred.
[0005]
  This is because there is a so-called bridge phenomenon in which coins replenished more in the hopper case 102 in order to increase the processing speed overlap with each other locked in an oblique posture, and a space is formed by the inclined coins. This occurs because it becomes difficult to ride on the protrusion 103 </ b> A of the rotating disk 103.
[0006]
  Further, since the rotational speed of the rotating disk 103 is high, when the number of coins stored in the hopper case 102 is reduced, a phenomenon occurs in which the coins dance in a cycle synchronized with the rotational cycle of the rotating disk 103. When this phenomenon occurs, it becomes difficult for the coin to ride on the protrusion 103 </ b> A of the rotating disk 103.
[0007]
  Therefore, the present invention can deal with a case where a coin is picked up with an inclined rotating disk, and can deal with a pick-up failure, especially when a phenomenon of coin dancing occurs. An object is to provide a coin processing device including an apparatus, a coin feeding method, and a coin feeding device.
[0008]
[Means for Solving the Problems]
  In order to achieve the above object, a coin feeding device according to a first aspect of the present invention is arranged, for example, as shown in FIG. A rotating disk 3 configured to feed out the coins; detecting devices S1, S2, and S4 for detecting a defective lifting of the coin; and a rotating disk according to the lifting failure detected by the detecting devices S1, S2, and S4 ThreeSelect either decelerated rotation or reverse rotationAnd a control device 7 that performs control.
[0009]
  Rotation of the coins caused by a rotating disk that is not picked up properly, for example, when the remaining amount of coins is low, the phenomenon that the coins before being picked up dance or the so-called bridge phenomenon of the coins before being picked up. Of coins by diskFriedIf a failure occurs, it will be detected by the detector and the rotating diskReduced rotation andRotating discSelect one of the reverse rotationTake control. As a result, the phenomenon of coins dancing, the bridge phenomenon, and the like are eliminated. As a result, if a coin has a lifting protrusion attached to the rotating disk, it becomes easy to ride on this protrusion and the lifting failure is improved.
[0010]
  For example, the detection device detects whether or not a scraping failure has occurred by monitoring whether or not a predetermined amount or less of coins remain and whether or not a coin swept up by a rotating disk is not detected for a predetermined time. Can be done by. That is, in this case, the remaining coins before being picked up are detected even though a predetermined coin has not been picked up and detected for a predetermined time after a certain coin has been picked up by the rotating disk. When it is considered that a scraping failure has occurred, the rotating diskSelect either decelerated rotation or reverse rotationControl is performed.
  A coin feeding device according to a second aspect of the present invention is the coin feeding device according to the first aspect, for example,1, FIG. 3, FIG. 4, FIG.As shown inA hopper case 2 for storing coins swept up by a rotating disk 3;The detection devices S1, S2, S4 areHopper case 2 A first detection device S1 for detecting a first residual coin in the vicinity of the lowermost part of the first detection device, and a second detection device S2 for detecting a second residual coin at a predetermined level higher than the mounting position of the first detection device S1. And a third detection device S4 that detects the delivery of coins from the coin feeding device 1; the control device 7 does not detect the delivery for a predetermined time by the third detection device S4 (NO in STP204). If the second residue is not detected by the second detector S2 (NO in STP206) and the first residue is detected by the first detector S1 (YES in STP207), Deceleration rotation is performed (STP 223), the third detection device S4 does not detect the delivery for a predetermined time (NO in STP 204, YES in STP 205), and the second detection device S2. If the second residual is detected Te (YES in STP206) performs the reverse rotation (STP242).
[0011]
  Claim3The coin feeding device according to the invention according to claim 1 is the first aspect.Or claim 2The coin feeding device according to claim 1, further comprising a DC motor for driving the rotating disk, wherein the control device changes a power ON / OFF time of the DC motor.Due to the reduced speed rotationConfigured as possible. For example, rotation control that decreases to a rotation speed that eliminates the lifting failure due to the phenomenon of the above-mentioned coin dancing can be performed by turning on and off the power supply to the DC motor at a predetermined cycle. Here, the on / off time refers to the time during which the power is on and the time during which the power is off.
[0012]
  Claim4The coin processing device according to the invention is directed to claim 1.Any one of Claim 3Including the coin feeding device according to claim 1,DeliveryThe coins paid out by the device are processed.
[0013]
  In order to achieve the above object, a coin feeding method according to a fifth aspect of the present invention includes a step of turning a coin in a plane inclined with respect to a horizontal plane, lifting the coin, and feeding the coin; Detecting a defect; and according to the detected scraping defect, in the in-plane of the coinSelect one of slow turn and reverse turnProcess. Here, turning means mainly rotating in a circle around a point in the plane at a predetermined distance from the coin. Here, the circle is not limited to a true circle, but may be a circle, an ellipse, or the like that deviates from the circle activation during the turn.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
  Embodiments of the present invention will be described below with reference to the drawings.
[0015]
  FIG. 1 is a three-dimensional perspective view of a coin feeding device 1 according to an embodiment of the present invention. As shown in the figure, a coin feeding device 1 includes a hopper case 2 for storing received coins, a substantially disk-shaped rotating disk 3 for separating and transporting coins one by one by turning the coins, and a rotating disk 3. A feeding motor M1 as a DC motor of the present invention to be driven, a feeding guide 6 for guiding the fed coins and guiding them to the feeding unit 5;Hopper case2 includes four coin sensors S1, S2, S3, and S4 (coin sensor S4 is not shown in FIG. 1) and a control unit 7 as detection devices of the present invention for detecting a residual state in the present invention. In FIG. 1, the control unit 7 is connected only to the feeding motor M <b> 1 (part of the connection line is omitted), but is actually connected to the coin sensors S <b> 1 to S <b> 4, a hopper case opening / closing motor M <b> 2 to be described later.
[0016]
  The hopper case 2 is open at the top and has a substantially trapezoidal cross-sectional shape whose upper side is longer than the lower side. The hopper case 2 is a case for storing received coins in bulk, and the lower part of the hopper case 2 can be opened and closed around a shaft 9 by a hopper case opening / closing motor M2. When a foreign object that cannot be scraped or fed out, such as banknotes, is introduced, the hopper case 2 can be opened and the foreign object can be dropped downward.
[0017]
  Three coin sensors S1, S2, S3 for detecting coins are attached to the end side surface 2A of the hopper case 2, and the coin sensor S3 for full detection is closest to the upper opening. For residual confirmation at a position farther from the upper opening than the sensor S3As a second detectorCoin sensor S2 for residual confirmation at a position further from the upper openingAs the first detection deviceA coin sensor S1 is attached. The coin sensors S1 to S4 are composed of a pair of a light emitter and a light receiver. The coin sensors S1, S2, and S3 have a light emitter attached to one end side surface 2A and a light receiver attached to the other end side surface 2A. It has been.As a third detectorThe coin sensor S4 is attached to the feeding unit 5 as a pair in the same manner as the other coin sensors S1, S2, and S3 (not shown).
[0018]
  The coin sensor S1 is for detecting that coins remain in the vicinity of the lowermost portion of the hopper case 2, and after a certain coin passes through the feeding unit 5, the next coin passes a predetermined time T1. Even if it does not pass through the feeding unit 5 and a coin is detected in the hopper case 2 by the coin sensor S1, it means that a coin pick-up failure has occurred. In the present embodiment, the coin scraping failure in this case is a cycle in which the remaining coins are synchronized with the rotation cycle of the rotating disk 3 because the rotational speed of the rotating disk is fast and the amount of coins remaining in the hopper case is small. This is due to the phenomenon of dancing.
[0019]
  The coin sensor S2 is for detecting, for example, a bar or a large foreign object that cannot be detected by the coin sensor S1. That is, the coin sensor S2 is for detecting that coins remain in a portion higher than the attachment position of the coin sensor S1 of the hopper case 2 by a predetermined level.
[0020]
  When a coin passes through the feeding unit 5 and then the next coin does not pass through the feeding unit 5 even if a predetermined time T1 has elapsed, and a coin is detected in the hopper case 2 by the coin sensor S2. For example, the following two cases can be considered. First of all, there is a case where a large foreign object such as a bar or a bill is present in the hopper case 2 as described above, and then, in the hopper case 2, a scraping defect caused by a so-called bridge phenomenon occurs. This is the case.
[0021]
  The coin sensor S3 is a coin that has been replenished or conveyed from the front stage of the coin feeding device 1.SensorIt is monitored that the installation level of S3 is reached. When a coin is detected by the coin sensor S3, it means that the hopper case 2 is almost full of coins. In this case, the operation of the previous stage is stopped, and thereby the supply of coins to the hopper case 2 or The conveyance is stopped so that excessive coins are not replenished or conveyed to overflow from the hopper case 2.
[0022]
  The coin sensor S4 monitors the coins sent from the coin feeding device 1 to the next-stage transport unit. In particular, in the present embodiment, the coin sensor S4 is a case where, after a certain coin passes through the feeding unit 5, the next coin does not pass through the feeding unit 5 even after a predetermined time T1, and the coin sensor S1. , S2 is used to stop the operation of the coin feeding device 1 as a normal operation when there is no detection of S2, and when any of the coin sensors S1, S2 is detected, any of the above-described rake failure Is used to detect the occurrence of.
[0023]
  A rotating disk 3 is provided so as to constitute a part of one of the two longitudinal side surfaces 2B in a direction substantially orthogonal to the two end side surfaces 2A of the hopper case 2. The rotating disk 3 normally rotates in the direction of the solid arrow in the figure (clockwise as viewed from the rotating disk), and its rotating surface is inclined with respect to the horizontal plane symmetrically with the other longitudinal side surface 2B of the hopper case 2. Are arranged. The rotating surface of the rotating disk 3 refers to a circular plane of the rotating disk 3. Since the rotating surface is inclined with respect to the horizontal plane, the rotation axis of the rotating disk 3 is inclined by the same angle with respect to the vertical axis.
[0024]
  The rotating surface of the rotating disk 3 is provided with a total of 16 protrusions 3A (only a part of which is shown) arranged in pairs and arranged in pairs in a uniform manner in the angular direction with respect to the rotation center. One projection 3A (eight) of the pair is arranged on a radius R1 from the center of rotation, and the other projection 3A (eight) of the pair is arranged on a radius R2 having a radius larger than R1, both of which are paired Adjacent to each other. Further, the rotating surface of the rotating disk 3 is arranged radially in a circle that is concentric with the rotating disk 3 and has a radius smaller than R1, and is also disposed at approximately the intermediate portion in the angular direction of the pair of protrusions 3A and 3A. Eight ridges 3B are provided. The coins are placed one by one from the protrusions 3A located on the radius R1, and then swept up, separated, and conveyed. When the separated coins are conveyed to a position above half of the rotary disk 3 (opening side of the hopper case 2), the coins are put between the protrusions 3A located on the radius R1 and the ridges 3B (FIG. 1). The coins in this state are indicated by broken lines) and further conveyed.
[0025]
  The protrusion 3A is urged toward the surface side of the rotating disk 3 by a leaf spring (not shown) so that the coin is caught in the restricting portion 11 and the like to prevent the rotation of the rotating disk 3 from stopping when the coin is conveyed. It is comprised so that.
[0026]
  The feeding motor M1 is provided to drive the rotating disk 3 via the gear head 10. The feed motor M1 can rotate forward and backward, and change the rotation speed by PWM control described later.
[0027]
  The feeding unit 5 is provided with a regulating unit 11 and a delivery guide 6, and the bottom surface of the regulating unit 11 is slightly larger than the thickness of the thickest 500 yen coin among the coins to be processed from the rotating surface of the rotating disk 3. Two grooves are processed so that the protrusions 3A are not in contact with each other by a distance having a large gap. When the thickness of the coin that is placed on the protrusion 3A and the ridge 3B on the rotating disk surface of the rotating disk 3 and is swept up and deformed is more than the regular thickness, the coin passes through the regulating portion 11. It cannot be done, and it falls out of the protrusion 3A and the ridge 3B and falls back into the hopper case 2. The processing of the deformed coin will be described later.
[0028]
  The coins that have passed through the restricting portion 11 are guided by the delivery guide 6 while changing the member for transporting from the protrusion 3A positioned on the radius R1 to the protrusion 3A positioned on the radius R2, and the traveling direction is outside the rotating disk 3. It changes to a certain feeding direction, passes the feeding part 5, and is fed to a conveyance part. The bottom surface of the delivery guide 6 is disposed slightly away from the rotating surface of the rotating disk 3, and two grooves are processed so that the projection 3 </ b> A that rotates as the rotating disk 3 rotates does not contact. A coin sensor S4 (not shown) is attached to the feeding unit 5 and detects a coin to be fed.
[0029]
  When a coin is bitten by the bottom surface of the restricting portion 11, the feeding motor M1 cannot rotate. In this case, the current value of the winding of the feeding motor M1 is detected. Further, the inability to rotate is detected by the occurrence of an abnormal current of this winding, and the reverse operation of the feeding motor M1 is automatically performed, or an alarm is issued. To supply power to the feeding motor M135May be turned off. Further, if the feeding motor M1 can be manually reversed, the coin can be released from the biting and dropped into the hopper case 2 by the reverse rotation of the rotating disk 3.
[0030]
  With reference to FIG. 2, the structure of the control part 7 as a control apparatus of this invention of the coin feeding apparatus 1 is demonstrated. The control unit 7 includes an operation control unit 13, a signal detection unit 14, a timer 15, a storage unit 16, a motor drive unit 17, and a drive time conversion unit 18. As will be described later, only signal exchange with the coin sensors S1 to S4, the feeding motor M1, and the hopper case opening / closing motor M2 is illustrated. Although not shown in the drawing, a push button for manual rotation of the feeding motor M1, a push button for manual rotation of the hopper case opening / closing motor M2, an on time setting button for driving time conversion means, and an off time setting button are provided on the front surface. It may be. The set on time and off time may be displayed.
[0031]
  The storage unit 16 includes a ROM and a RAM. A program for controlling each unit is stored in the ROM. The RAM temporarily stores information on the coin sensors S1, S2, S3, and S4 and time information. It is a parameter for controlling each part. The timer 15 starts ticking by a signal emitted from the coin sensor S4 and passing through the signal detecting means 14 and the operation control section 13 or by a signal sent from the operation control section 13 to the motor driving means 17 and the timer simultaneously, The CPU monitors predetermined items.
[0032]
  The signal detecting means 14 detects a light shielding detection signal 31 that detects the light shielding by the coin from the coin sensor S1, a similar light shielding signal 32 from the coin sensor S2, a similar light shielding signal 33 from the coin sensor S3, and a similar light shielding signal 34 from the coin sensor S4. Is detected. The motor driving means 17 supplies power supplies 35 and 36 to the feeding motor M1 and the hopper case opening / closing motor M2. The drive time conversion means 18 is a means for generating a control signal for controlling the motor drive means 17 of the feeding motor M1, and generates a control signal using PWM control (pulse width modulation control). Based on this control signal, power supply from the motor driving means 17 to the feeding motor M1 is controlled.
  Next, with reference to FIG. 3, FIG. 4, FIG. 5, the operation | movement at the time of the normal operation | movement of the coin feeding apparatus 1 and a flawing failure is demonstrated.
[0033]
  FIG. 3 is a flowchart composed of steps STP200 to STP210 showing the operation of the coin feeding device 1, FIG. 4 is composed of STP221 to STP226, and FIG. 5 is composed of STP241 to STP249. FIG. 3 mainly shows normal operation, and FIGS. 4 and 5 mainly show the case of poor lifting, which is largely divided by the phenomenon of coins dancing (FIG. 4) and the case of coin bridging ( Fig. 5). In the figure, the outline of the operation is described in a rectangle and a diamond representing each step.
[0034]
  The operation during normal operation shown in FIG. 3 is as follows. When the coin feeding device 1 is activated (STP200), a motor drive signal 35A is issued (STP201), and the feeding motor M1 starts to rotate forward (STP202). Actually, the motor drive signal 35A is sent from the operation controller 13 to the motor drive means 17, and the motor drive means 17 supplies power to the feeding motor M1.35And the feeding motor M1 starts normal rotation at the normal rotation speed.
[0035]
  Next, although it is drawn that the timer 15 is activated (STP203), in practice, the operation control unit 13 issues the motor drive signal 35A and simultaneously activates the timer 15 (STP203).
[0036]
  The rotating disk 3 is rotated by the driving of the feeding motor M <b> 1, and the coins are picked up one by one and guided to the feeding unit 5. Whether or not the coin sensor S4 is shielded from light is monitored by the coin sensor S4 attached to the feeding unit 5 and confirming feeding (STP 204). Each time a coin shades the coin sensor S4 (in the case of YES in STP204), the timer is reset (STP203) and starts counting from 0 again.
[0037]
  Here, the case where the coins are normally lifted up will be described. The coins in the hopper case 2 are lifted up by the rotary disk 3 and are all conveyed through the feeding unit 5 and no coins are left in the hopper case 2. In the process, first, the coin sensor S2 for confirming that coins remain in the hopper case 2 is not shielded from light (in the case of NO in STP206), and then attached to a level closer to the bottom of the hopper case 2 than the coin sensor S2. Thus, the coin sensor S1 for confirming the remaining of coins is not shielded from light (in the case of STP207 NO), and the coin sensor S4 of the feeding unit 5 for confirming feeding is also not shielded from light (in the case of STP204 NO). Phenomenologically changes in this order, but the sequence changes in such a manner that the coin sensor S4 does not detect light shielding, the predetermined time T1 has elapsed, the coin sensor S2 does not detect light shielding, and the coin sensor S1 does not detect light shielding.
[0038]
  The operation control unit 13 starts the operation of the timer 15 (STP203) together with the start of the rotation of the feeding motor M1 (STP202) as described above, and after the feeding motor M1 starts operating (STP202), or the coin is fed out. 5 is a predetermined time T1 after light shielding is detected by the coin sensor S4 when the coin is fed out (in the case of YES in STP204) (in one embodiment, the time required for the rotating disk to make about 1.5 laps is about 1.5 seconds). It is monitored whether or not it has passed (STP 205).
[0039]
  Here, the reason why the length of the monitoring time is the predetermined time T1 will be described below. Consider a case where coins cannot be swept up continuously at a certain point. For example, when the N + 1th coin is picked up by the rotating disk 3 after a certain time interval T1 ′ after being detected by passing through the coin sensor S4 that detects feeding and being shielded from light. To do. A predetermined transport time is required for the (N + 1) th coin to be transported to the coin sensor S4 after being swung up by the rotary disk 3, and this transport time is added to T1 'to obtain a value T1, between this T1 It was decided to monitor.
[0040]
  Next, when the predetermined time T1 has elapsed (in the case of YES at STP205), the operation control unit 13 receives a time-out signal issued from the timer 15 indicating the elapse of the predetermined time T1, and receives the coin sensor S2 for residual confirmation and Whether or not the coin sensor S1 is shielded is investigated (STP206, STP207). If it is confirmed that the coin sensor S2 and the coin sensor S1 for residual confirmation are not shielded (NO in STP206, NO in STP207), the motor drive signal 35A issued to the motor drive means 17 is stopped (STP208). ). When the motor drive signal 35A from the operation control unit 13 is stopped, the motor drive means 17 supplies power to the feeding motor M1.35Therefore, the feeding motor M1 stops rotating (STP209), and then the coin feeding device 1 ends its operation (STP210).
[0041]
  FIG. 6 is an operation sequence diagram of the coin sensors S1, S2, S4, the power supply 35 of the feeding motor M1, and the motor drive signal 35A during normal operation. The horizontal direction represents the passage of time, and the vertical direction represents changes in signals and the like. The rising of the light shielding signals 31, 32, 34 of the coin sensors S1, S2, S4 represents light shielding due to the presence of coins, and the fall of the signal represents the end of light shielding due to the absence of coins. Receiving the feeding signal from the operation control unit 13, the motor driving means 17 sends the power source 35 to the feeding motor M1. The rise of the line representing the rotational speed of the feeding motor M1 indicates that the power supply 35 is supplied and the feeding motor M1 is activated, the rotational speed increases and reaches the normal rotational speed, and the line representing the rotational speed falls. Power supply35This indicates that the feeding motor M1 has stopped rotating and has stopped. It takes time to increase and decrease the rotational speed, but here, for the sake of simplicity, this passage of time is omitted, and the rotational speed is displayed so as to change instantaneously.
[0042]
  The motor drive signal 35A is sent from the operation control unit 13 to the motor drive means 17, and the motor drive means 17 turns on the power supply 35 to the feeding motor M1 in response to the motor drive signal 35A. The rise of the motor drive signal 35A indicates that the motor drive signal 35A is sent to the motor drive means 17, and the fall of the motor drive signal 35A indicates that the motor start signal 35A is no longer sent to the motor drive means 17.
[0043]
  Next, the contents of the sequence will be described in order. The coin feeding device 1 is activated, the coin sensors S1, S2 detect light shielding, a motor drive signal 35A is generated, and the power source 35 is supplied to the feeding motor M1 (P301). Next, the coin sensor S4 is detected by the picked up coins (P302). The number of coins in the hopper case 2 is decreased, and the light shielding detection by the coin sensor S2 is not performed (P303), and further, the light shielding detection by the coin sensor S1 is not performed (P304). Next, there is no coin in the hopper case 2, and the detection of light shielding by the coin sensor S4 is lost (P305). Since the timer 15 is not reset from this point, the timer 15 keeps ticking. After a predetermined period T1, the motor drive signal 35A is stopped and the supply of the power source 35 to the feeding motor M1 is stopped (P306).
[0044]
  Next, with reference to FIGS. 3, 4, and 5 again, the operation of the coin feeding device 1 when the coins are poorly picked up due to the phenomenon that the coins dance and the phenomenon that the coins form a so-called bridge will be described.
[0045]
  The operations in the following brackets are almost the same as in the normal case described above. That is, “a motor drive signal 35A is issued, the feeding motor M1 starts to rotate forward, the timer 15 is activated, and it is monitored whether or not the coin swept up by the rotating disk 3 shields the coin sensor S4. The timer 15 is reset each time the coin sensor S4 is shielded from light, and after the time that the timer 15 ticks has elapsed T1, the presence / absence of light shielding detection by the coin sensor S2 and the coin sensor S1 is checked. To do. "
  The following cases are considered as the case where the coins in the hopper case 2 fail to be lifted up, so the description starts from the detection of the light shielding by the coin sensor S2 for confirming the residual, and the subsequent operation is further described.
[0046]
  First, as described above, the operation control unit 13 determines whether or not light is blocked by the coin sensor S2 that confirms the remaining coins (STP206). When the coin sensor S2 is not shielded from light (when it is assumed that a scraping failure has occurred and the process proceeds from NO at STP 206 to YES at STP 207), the coin sensor S2 is shielded from light (STP 206). In the case of YES). In this case, it is considered that a so-called coin bridging phenomenon occurs in the hopper case 2.
[0047]
  Then, the operation control unit 13 sends a motor drive change signal to the motor drive means 17 (STP 241), and the motor drive means 1735Is supplied to the feeding motor M1, and rotation is started at the normal rotation speed in the reverse rotation direction (STP242), and the timer 15 is started (STP243). The feeding motor M1 rotates reversely (when STP243A is NO) for a certain period of time T6 (500 ms in one embodiment) (when STP243A is YES), then shifts to normal rotation (normal rotation speed) similar to normal operation. (STP245).
[0048]
  When the bridge state of the coin is released by the reverse rotation of the feeding motor M1 for a predetermined time T6, the coin is then picked up and conveyed by the forward rotation of the feeding motor M1, and the coin sensor S4 for feeding confirmation is shielded from light. (STP247 YES) By detecting this light shielding, the operation is shifted to the normal operation, the timer is reset (STP203), and the light shielding monitoring by the coin sensor S4 is continued (STP204).
[0049]
  When the coin sensor S4 does not detect light shielding (in the case of STP247 NO), the bridge state of the coin has not been released during the predetermined time T6, or some new defect has occurred even if it is released. Alternatively, it is assumed that there is a foreign substance due to the cause described later, and a feeding failure (STP 249) is determined by a time-out signal after a predetermined time T3 (about 2 seconds in one embodiment) has elapsed (in the case of NO in STP 248).
[0050]
  If the feeding failure is determined (STP 249), the motor drive signal from the operation control unit 13 is stopped in the same manner as the feeding operation is stopped during the normal operation described above.35AIs stopped (STP208), and the motor drive means 17 uses the signal to supply power to the feeding motor M1.35In order to stop the supply, the feeding motor M1 stops rotating (STP209), and then the coin feeding device 1 stops (ends) its operation.
[0051]
  Although not shown, in order to more reliably solve the feeding failure, after the reverse rotation during the time T6, when the scraping failure continues due to the normal rotation (STP242 to STP245) during the time T3 (YES in STP248) In this case, the motor drive conversion signal is sent again (STP 241), and the above-mentioned reverse rotation and forward rotation operations are performed several times, and the time referred to hereoutA signal may be output.
[0052]
  As a matter of fact, as described above, there are many cases where a large foreign object such as a metal bar or a banknote is present as described above. Therefore, the hopper case opening / closing motor M2 is operated to open the hopper case and move the foreign object downward. It is good to drop it. The hopper case opening / closing motor M2 may be provided either automatically or by providing a manual operation push button for the hopper case opening / closing motor M2 on the front surface of the control unit 7 and operating after the coin feeding device 1 is stopped. . In addition, when the deformation | transformation coin which is not paid out by control of the control part 11 remains in a hopper case, it will fall together at this time.
[0053]
  The stopping procedure of the feeding operation is the same as that in the normal operation described above, and a motor drive signal from the operation control unit 13 is used.35AIs stopped (STP208), the motor drive means 17 supplies power to the feeding motor M1.35Therefore, the feeding motor M1 stops rotating (STP209), and then the coin feeding device 1 ends its operation (STP210).
[0054]
  Next, a case where the coin sensor S2 for confirming the remaining of coins is not shielded from light in a poorly-raised state (in the case of NO in STP206) will be described.
. In this case, the light shielding state of the coin sensor S1 for residual confirmation is further determined (STP207). At this time, when the coin sensor S1 is not shielded from light (in the case of NO at STP 207), it does not correspond to the flawed defective state, and is a normal operation, and the feeding is finished as described above. On the other hand, when the coin sensor S1 is shielded from light (in the case of YES at STP 207), a scraping failure occurs due to a phenomenon in which the coin does not get on the rotating disk 3 and dances in the hopper case 2. This is the case. However, the detection of light shielding by the coin sensor S1 is not necessarily continuous, and may be intermittent. When the situation where the continuous detection of the light shielding by the coin sensor S1 occurs, the light shielding is not detected only when the light shielding is not detected continuously for a certain time or more. Consider it.
[0055]
  Therefore, after detecting the light blocking by the coin sensor S1, the operation control unit 13 sends a drive time change signal to the drive time conversion means 18 (STP221), and thereafter, the motor drive signal 35A is sent to the motor drive means via the drive time conversion means 18. Send to 17. Since the motor drive signal 35A is sent via the motor drive time conversion means 18, the rotation speed of the feed motor M1 is a variable mode in which PWM control described later is performed, and the feed motor M1 is rotated at a reduced speed (STP223). In FIG. 4, the timer 15 is started after the motor decelerating rotation (STP224), but actually the timer 15 is activated simultaneously with the decelerating rotation (STP224).
[0056]
  When the phenomenon of coin dancing is resolved by setting the rotation speed to the variable mode and reducing the rotation speed to reduce the rotation (in the case of YES of STP225), the disk returns to the normal state (STP202). The coin 3 starts to be picked up. When the decelerating rotation is performed to eliminate the dance phenomenon before returning to the normal state (STP 223), the longest light shielding of the coin by the coin sensor S4 for feeding confirmation is performed for a predetermined time T2 (in one embodiment, It is monitored (in the case of STP 226 NO) during a period of about 1.5 rotations of the rotating disk (about 3 seconds) (STP 225). As described above, if the sensor S4 detects light shielding (YES in STP225), the operation control unit 13 regards that the flawing failure has been resolved, and the rotational speed at that time is the case of positive rotation before the original deceleration. Is returned to the normal value (normal rotation speed), that is, the control mode is shifted from the variable mode to the normal operation (STP202).
[0057]
  After that, when a lifting failure due to the coin dance phenomenon occurs again (in the case of STP207 YES), the same procedure is repeated. In this case, when the rotational speed variable mode is set (STP 221), the rotational speed may be set to a value smaller than the rotational speed value of the previous decelerated rotation. The feeding motor M1 may be stopped when the rotational speed has been reduced to a predetermined value or less previously or when the coin dance phenomenon has already occurred several times.
[0058]
  If the phenomenon of coin dancing does not disappear even if the rotational speed is changed to the variable mode and the rotational speed is reduced, the coin sensor S4 detects light shielding for a predetermined time T2 (in the case of STP226 NO). There is nothing (in the case of STP225 NO). Accordingly, when the time-out signal is detected after elapse of time T2 (in the case of YES of STP226), it is considered that the scraping failure has not yet been resolved, and the operation proceeds to the operation of reversing the feeding motor M1 (STP242). A motor drive change signal is sent to the motor drive means 17 (STP241). In this case, generally, only the rotation direction is reversed, and the rotation speed is maintained as it is before the reverse rotation. The subsequent procedure is the same as that in the case where the rotation direction is reversed.
[0059]
  Next, the control of the rotation speed of the feeding motor M1 will be described (for the sake of convenience, the slow mode is set). In the slow mode, the motor drive current is controlled by using PWM control for T4 (10 ms in one embodiment).35And power for T5 (70 ms in one embodiment)35It is done by repeating the action of shutting off. At this time, the feeding motor M1 is powered35Since the rotation is maintained by the inertial force even during the time when the rotation is not supplied, the rotation is almost continuous. The rotational speed was about half of the normal speed when T4 and T5 were the values in the parentheses. The reason why the values of T4 and T5 are set so that the number of revolutions is approximately halved is that the number of revolutions can be eliminated due to the phenomenon of coin dancing, and the coin feeding device according to this embodiment is used. The number of rotations obtained by the experiment. T4 (ON time) and T5 (OFF time) for determining the number of revolutions may be incorporated in the program in advance, and an ON time setting button for driving time conversion means is provided on the front surface of the control unit 7. May be used to set the on time, and an off time setting button may be provided to set the off time.
[0060]
  In this embodiment, when control is performed by software (CPU), if software capable of higher speed processing is selected, the ON / OFF cycle can be set smaller, and the rotation of the feeding motor M1 can be made finer. Can be controlled. In order to enable PWM control, the circuit may be changed or an external circuit design may be used, and hardware (electrical components) can be used. However, when control is performed using programmable software, the contents of the program need only be changed, the current hardware can be used as it is, and furthermore, the specification of the feeding motor M1 changes, and the rotational speed at which scraping defects are eliminated. Even if the change occurs, it can be dealt with only by changing the deceleration rotational speed to that rotational speed. Therefore, it can be said that the coin feeding device capable of PWM control using programmable software has versatility.
[0061]
  Next, referring to FIG. 7 and FIG. 8, in the case of a scraping failure, the power source of the coin sensors S1, S2, S4 and the feeding motor M135And motor drive signal35AThe operation sequence will be described. 7 and 8, the rising and falling of the signal and the like are expressed in the same way as in FIG. 6. However, in FIG. 7 and FIG.35A decrease in the number of rotations due to PWM control and a decrease beyond the line representing the current value 0 represent a reversal of the rotation direction due to the reversal of the power supply polarity.
[0062]
  FIG. 7 is a sequence diagram of the operation of the lifting failure due to the so-called bridge phenomenon. The coin feeding device 1 is activated, the coin sensors S1 and S2 detect light shielding, a motor drive signal 35A is generated, and a power is supplied to the feeding motor M1.35Is supplied (P301). Next, the coin sensor S4 is detected by the picked up coins (P302). When the coin at the bottom of the hopper case 2 is transported and a bridge phenomenon occurs, a space is formed and light shielding by the coin sensor S1 is not detected (P311). However, the light shielding detection by the coin sensor S2 is continued. Next, the picking up of the coin by the rotating disk 3 is eliminated, and the detection of the light shielding by the coin sensor S4 is eliminated (P312).
[0063]
  Since the timer 15 is not reset from here, the timer 15 keeps ticking, and the feeding motor M1 rotates in the reverse direction after a predetermined period T1 (P313). When the bridge of the coin is broken by the reverse rotation of the rotating disk 3 and the bridge phenomenon is resolved, the light shielding of the coin sensor S1 is started (P314). When a predetermined time T6 has passed after the reverse rotation of the feeding motor M1, the feeding motor starts normal rotation (P315), and since the coin is lifted up, the coin sensor S4 starts to block light (P316) and shifts to normal operation. . Eventually, the shielding of the coin sensor S1 is finished due to the decrease of the coins in the hopper case 2 (P317), and after the last coin shields the coin sensor S4 (P318), the time until the timer 15 passes the predetermined time T1. However, since the subsequent sequence is the same as in the normal operation described above, the description thereof is omitted.
[0064]
  In the case where the bridge does not collapse due to the reversal of the rotating disk 3 and the bridge phenomenon is not resolved, in FIG. It replaces the sequence shown. That is, at the time corresponding to P314, the light shielding of the coin sensor S1 is not started (case 1), or the bridge collapse is insufficient even when the light shielding of the coin sensor S1 is started (case 2). The light shielding is not interrupted, the light shielding continues, and the coin is not picked up by the rotating disk 3 thereafter, so that the coin is not detected by the coin sensor S4. When a predetermined time T6 has passed after the reverse rotation of the feeding motor M1, the feeding motor M1 starts normal rotation (P319). However, when a predetermined time T3 has elapsed after the start of forward rotation, the motor driving signal 35A is regarded as a feeding failure. Stops and power supply to feeding motor M135Is stopped (P320). Here, the feeding motor M1 is stopped by one forward rotation operation after reverse rotation, but may be stopped after further reverse rotation and forward rotation are repeated.
[0065]
  FIG. 8 is a sequence diagram of an operation of a lifting failure due to a coin dance phenomenon. The coin feeding device 1 is activated, the coin sensors S1 and S2 detect light shielding, a motor drive signal 35A is generated, and a power is supplied to the feeding motor M1.35Is supplied (P301). Next, the coin sensor S4 is detected by the picked up coins (P302). The coins in the hopper case 2 decrease, the detection of light shielding by the coin sensor S2 is lost (P331), and the phenomenon of coin dancing occurs, so that the continuous light shielding detection by the coin sensor S1 is not performed (P332), and intermittently. Will be detected. Almost simultaneously with the end of the continuous light shielding detection, the coins in the hopper case 2 are not picked up, and the light shielding detection by the coin sensor S4 is eliminated (P333). However, intermittent coin detection with a non-detection time of a predetermined value or less by the coin sensor S1 is treated as coin detection in sequence. Since the timer 15 is not reset from here, the timer 15 keeps ticking, and after a predetermined period T1, the driving time change signal is issued (not shown in FIG. 8), and the motor driving signal35ABecomes a variable mode by PWM control, decelerates and rotates the feeding motor M1, and the count of the timer 15 proceeds continuously (P334). At this time, the motor drive signal35AIs a power supply at intervals of T4 and T5 as shown in the central part of the figure.35Perform pulse width modulation control to turn on and off. When the dancing phenomenon is eliminated by the decelerating rotation of the rotating disk 3, the intermittent detection of the light shielding by the coin sensor S1 ends (P335), and the picking up of the coin by the rotating disk is resumed and detected by the coin sensor S4. (P336), the feeding motor M1 escapes from the variable mode and returns to the normal rotation speed (P337). Since the subsequent sequence is the same as the normal operation, the description thereof is omitted.
[0066]
  A case where the coin dance phenomenon is not eliminated even by the slow rotation will be described below. In this case, the part shown on the right side in the figure is replaced with the sequence shown in the lower half of the figure rather than the line indicated by the two-dot chain line of the sequence shown in the upper half of the figure. In this case, the intermittent detection of the light shielding by the coin sensor S1 is continued, and the picking up of the coin is not resumed, and when the predetermined time T2 has elapsed after the start of the deceleration operation, the feeding motor M1 does not escape from the variable mode. Since the process proceeds when the feeding motor M1 rotates in the reverse direction, the following description is omitted.
[0067]
【The invention's effect】
  As described above, according to the present invention, when a scraping failure due to the rotating disk occurs, this is detected by the detection device so that the scraping failure does not occur.Select either decelerated rotation or reverse rotation of the rotating disk,It is possible to eliminate the scraping defect. Therefore, even if the rotational speed of the rotating disk is increased during normal operation, it is not necessary to interrupt the operation of the coin feeding device when a coin feeding failure occurs, and the overall coin feeding rate can be improved. did it.
[Brief description of the drawings]
FIG. 1 is a three-dimensional perspective view of a coin feeding device according to an embodiment of the present invention.
FIG. 2 is a schematic configuration diagram schematically showing a configuration of a control unit of the coin feeding device according to the embodiment of the present invention.
FIG. 3 is an operation flow diagram during normal operation of the coin feeding device.
FIG. 4 is an operation flow diagram when the lifting of the coin due to the coin dancing phenomenon of the coin feeding device is poor.
FIG. 5 is an operation flow diagram in the case of a lifting failure due to a coin bridging phenomenon of the coin feeding device.
FIG. 6 is an operation sequence diagram of the coin sensor and the feeding motor during normal operation of the coin feeding device.
FIG. 7 is an operation sequence diagram of the coin sensor and the feeding motor at the time of a lifting failure due to a coin bridging phenomenon of the coin feeding device.
FIG. 8 is an operation sequence diagram of the coin sensor and the feeding motor at the time of lifting failure due to the phenomenon of coins dancing in the coin feeding device.
FIG. 9 is a cross-sectional view schematically showing an overall configuration of a coin processing device using a conventional coin feeding device.
[Explanation of symbols]
    1 Coin feeding device
    2 Hopper case
    2A end side
    2B Longitudinal side
    3 Rotating disc
    3A protrusion
    3B uplift
    5 feeding section
    6 Sending guide
    7 Control unit
    9 axes
  10 Gear head
  11 Regulatory Department
  13 Operation control unit
  14 Signal detection means
  15 timer
  16 Memory unit
  17 Motor drive means
  18 Driving time conversion means
  M1 feeding motor
  M2 Hopper case opening / closing motor
  31, 32, 33, 34 Shading signal
  35 Power supply
  35A Motor drive signal
  S1 coin sensor
  S2 coin sensor
  S3 coin sensor
  S4 coin sensor

Claims (5)

A rotating disk having a rotating surface inclined with respect to a horizontal plane and configured to scoop up coins and pay out the coins;
A detection device for detecting a scraping defect of the coin;
A control device that performs control to select either decelerated rotation or reverse rotation of the rotating disk in accordance with the scraping failure detected by the detection device;
Coin feeding device. A hopper case for storing coins swept up by the rotating disk;
The detection device detects a first residue of coins in the vicinity of the lowermost portion of the hopper case, and a second residue of coins at a predetermined level higher than a mounting position of the first detector. A second detection device for detecting, and a third detection device for detecting the sending of coins from the coin feeding device;
In the control device, the transmission is not detected for a predetermined time by the third detection device, the second residue is not detected by the second detection device, and the first residue is detected by the first detection device. If it is, the decelerated rotation is performed, and if the third detection device does not detect the delivery for a predetermined time and the second detection device detects the second residual, the reverse rotation is performed. ;
  The coin feeding device according to claim 1. Wherein for driving the rotating disk DC motor further comprising a said control device is configured to allow the reduced rotation More modify the on-off time of the power supply of the DC motor;
The coin feeding device according to claim 1 or 2 . A coin processing device comprising the coin feeding device according to any one of claims 1 to 3, and processing a coin fed out by the coin feeding device. Turning the coins in a plane inclined with respect to a horizontal plane, lifting the coins, and feeding them;
Detecting a scraping defect of the coin;
Selecting either in- plane deceleration turning or reverse turning of the coin according to the detected scraping failure;
Coin feeding method.

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