KR20100066835A - Method and apparatus for control of media pressurization force, and automatic teller machine with the same - Google Patents

Abstract

PURPOSE: A method and a device for controlling a media pressure force, and a media depositing and withdrawing device using the same are provided to improve media output quality by controlling the pressurization force by moving a pushing plate forward and backward. CONSTITUTION: A pushing plate(11) pressurizes media to output the loaded media in order. A driving unit generates a rotation force to move the pushing plate. A first sensor senses the output error of the media. A plurality of pushing plate sensors senses the position of the pushing plate. A controller(16) controls the driving unit to control the pressure force applied to the media by moving the pushing plate forward and backward when an media output error occurs.

Description

METHOD AND APPARATUS FOR CONTROL OF MEDIA PRESSURIZATION FORCE, AND AUTOMATIC TELLER MACHINE WITH THE SAME}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a media storage device, and more particularly, to a media pressure control method and apparatus for controlling a pressure applied to a loaded medium when a media discharge error occurs, and a media storage device using the same.

As used herein, the term "medium" refers to a bill, a check, a ticket, a certificate, or the like, and may be variously thinner than a width or a length.

The media teller machine is applied to financial teller machines such as cash dispensers, vending machines, money exchangers, and media handlers such as certificate issuers and ticket vending machines to perform various functions such as storing, depositing, exchanging, issuing media, and the like. Here, the explanation will be made by using a cash dispenser that puts and puts out banknotes.

The cash dispenser is provided with a loading cassette for preloading the banknotes to release the banknotes in the withdrawal transaction.

1 is a block diagram of a loading cassette applied to a general ATM.

The loading cassette 1 is configured to be detachable from the ATM. The stacking cassette 1 is provided with a discharge module (Auto Cash Feeder) 4 for releasing the bill to the outside. The discharge module 4 includes a pickup roller 4a for picking up the banknotes loaded inside the stacking cassette 1, and a pickup motor generating rotational power to rotate the pickup roller 4a. 4b is provided. In the drawing, the side of the stacking cassette 1 is shown so that only one pick-up roller 4a is shown, but the pick-up rollers 4a are separated by a predetermined interval so as to pick up both sides of the banknote, respectively. It is provided side by side.

A pressing plate 2 is provided to apply a pressing force in the discharge direction of the banknote so that the discharge module 4 releases the banknotes one by one. The plate 2 presses the banknote while moving by the drive of the plate driving motor (hereinafter referred to as the motor) 3.

A first sensor 5 is provided for inspecting whether the release module 4 is moved by the banknote pressed by the pusher plate 2 to reach an appropriate position to release the banknote. In addition, the stacking cassette (1) is provided with a second sensor (6) for sensing the bill discharged to the outside by the discharge module (4). When the discharge module 4 normally releases the bill, the second sensor 6 outputs an on signal whenever it detects the bill. However, when the pickup roller 4a cannot pick up the bills normally because the pressing force applied to the bills by the pusher 2 is excessive or insufficient, since the bills are not normally ejected, the second sensor ( 6) continuously outputs an off signal.

When the discharge module 4 reaches the proper position and the signal from the first sensor 5 is output, the controller (not shown) of the cash dispenser stops driving the motor 3. And, if the second sensor 6 continuously outputs an off signal as the pick-up operation of the bill is interrupted, the controller controls to perform the bill release operation again. That is, the control unit drives the motor 3 according to a predetermined driving ratio to move the plate 2 in the opposite direction of the discharge direction, and then the bill is picked up normally using the second sensor 6 to It is tested to see if it is released.

However, a cash dispenser to which a stacking cassette having the above configuration is applied has the following problems.

First, in the conventional cash dispenser, when a bill release error occurs due to a pickup failure, the bill release operation is restarted by driving the motor 3 to move the plate 2 in the opposite direction to the discharge direction regardless of the reason for the pickup failure. Do it. Therefore, when the pressing force applied to the medium loaded from the plate 2 is excessive, the case of normally releasing the loaded paper money through the bill release operation performed again while the plate 2 is moved in the opposite direction to the release direction. There is also. However, if the excessive pressing force is not appropriately reduced due to the movement of the plate 2, or if the pressing force is insufficient, the banknote cannot be released normally even if the banknote release operation is performed again.

In the conventional cash dispenser, when a bill release error occurs, the bill release operation is performed again by driving the motor at a predetermined driving ratio regardless of the amount of bills loaded. That is, when the banknotes loaded on the stacking cassette 1 are in a full state, the pressing force applied to the banknotes by the motor 3 driven at the constant driving ratio is insufficient. On the other hand, when the banknotes loaded in the stacking cassette 1 are discharged close to the fully discharged state, the pressing force becomes excessive. For this reason, since the discharge module 4 cannot release the bills normally, a conventional cash dispenser generates a bill release error despite the re-execution of the bill release operation, so that the cashier or the manager checks the stacking cassette directly. There is a problem that the transaction is delayed.

Accordingly, an object of the present invention is to solve the problems described above, and an object of the present invention is to provide a medium and pressure control method and apparatus for controlling a pressure applied to a medium so that a loaded medium is normally discharged when a medium is released. In providing a cashier.

Another object of the present invention is to control to provide an appropriate pressing force according to the amount of the loaded medium so that the loaded medium is normally released in the event of a medium release error.

According to a feature of the present invention for achieving the object as described above, the present invention is a compact plate for pressing the medium so that the loaded medium is discharged in order; A driving unit generating rotational power to move the wheat plate; A first sensor for detecting an emission error of the medium; And a control unit for controlling the driving unit to adjust the pressing force applied to the medium by moving the contact plate back and forth when the medium release error occurs.

According to another feature of the present invention, the present invention provides a pressure plate for pressurizing the medium so that the loaded medium is discharged in order; A driving unit generating rotational power to move the wheat plate; A first sensor for detecting an emission error of the medium; A plurality of plate detection sensors for detecting the position of the plate; And a control unit for controlling the drive unit to a driving ratio set based on the position of the close plate so as to adjust the pressing force applied to the medium by moving the close plate back and forth when the medium release error occurs.

The present invention further includes a discharge module for discharging the medium pressurized by the moved compact plate to the outside, and a second sensor for detecting whether the discharge module is moved to a preset discharge position to normally discharge the loaded medium. The control unit controls the driving unit to reduce the pressing force by moving the contact plate in a direction opposite to the discharge direction when the discharge module is moved to the discharge position when the medium release error occurs.

The control unit controls the pressing force by performing at least one of a first process of increasing the forward movement amount of the compact plate and a second process of reducing the backward movement amount of the compact plate when the medium release error occurs.

The sensor is a limit switch.

The sensor, the body portion formed on the inner surface of the stacking module for loading the bill; An elastic part formed on one surface of the body part facing the inside of the loading module to be elastically deformed according to the movement of the wheat plate; A roller part formed on one surface of the elastic part to be in contact with the contact plate; And a switch terminal formed to contact a portion of the elastic portion when the roller portion is in contact with the mill plate.

According to still another aspect of the present invention, there is provided an apparatus for controlling a force applied to a medium, the apparatus comprising: a medium pressure control device adapted to change a pressure applied to the medium; And a control unit for controlling the driving unit to adjust the pressing force applied to the medium in the case of a medium release error.

According to another feature of the invention, the present invention comprises the steps of pressing the loaded medium in the discharge direction; Discharging the pressurized medium to the outside using a discharge module; Detecting an error in release of the medium; In the case of the medium release error, the pressure plate applied to the medium is controlled by moving the pressing plate pressing the medium back and forth.

The present invention further includes the step of sensing the position of the pressing plate for pressing the medium, and changing the driving ratio of the drive unit for pressing the pressing plate in accordance with the detected position of the pressing plate, the re-run step is the pressing plate The re-execution mode of the medium discharge operation is performed to drive the driving unit at a driving ratio changed according to the position of the to adjust the pressing force applied to the medium.

Detecting whether the release module that releases the medium reaches a preset discharge position to release the medium to the outside at the moment when the medium release error occurs in the sensing step; And when the discharge position is reached, moving the contact plate in a direction opposite to the discharge direction to reduce the pressing force.

In the re-execution step, the pressing force is adjusted by performing at least one of a first process of increasing the forward movement of the compact plate and a second process of reducing the backward movement of the compact plate.

The medium pressing force control method and apparatus of the present invention having such a configuration, and a medium taking out device using the same have the following effects.

First, the present invention can adjust the pressing force by moving the mill back and forth even if the medium release error occurs because the pressing force applied to the loaded medium is excessive or insufficient, it is possible to improve the medium release quality by releasing the medium normally.

In addition, the present invention provides an appropriate pressing force so that the loaded medium can be normally discharged by controlling the driving ratio of the motor according to the amount of the loaded medium during the medium release error, thereby increasing the probability of success of the medium release operation, Transaction delays can be prevented.

Hereinafter, a method and apparatus for controlling a media force according to a preferred embodiment of the present invention, and a media storage device using the same will be described in detail with reference to the accompanying drawings.

2 is a block diagram showing the configuration of a cash dispenser including a stacking cassette for controlling banknote pressing force when a banknote release error according to a preferred embodiment of the present invention, Figure 3 is a detail of the stacking cassette shown in FIG. The configuration is shown in side view.

As shown in these figures, the cash dispenser of the present invention is provided with a loading cassette 10 for preloading banknotes to be released during withdrawal transaction. The stacking cassette 10 is configured to be detachable from the ATM.

The stacking cassette 10 is provided with a discharge module 13 for releasing the loaded bill to the outside. The discharge module 13 is installed side by side spaced apart by a predetermined interval so that the pick-up roller 13a for picking up the loaded banknotes can pick up both sides of the banknote. In the figure, the side of the stacking cassette 10 is shown, so only one pickup roller 13a is shown. In addition, the discharge module 13 is provided with a pickup motor 13b for driving the pickup roller 13a.

An emission module detection sensor (hereinafter referred to as a 'first sensor') 14 is provided to detect that the emission module 13 is moved to a preset discharge position. The discharge position is a position set in advance by an experimental value so that the discharge module 13 separates the loaded bills one by one and release them to the outside. The first sensor 14 detects that the emission module 13 is moved to the discharge position and outputs an on signal.

In addition, an emission bank detection sensor (hereinafter referred to as a “second sensor”) 15 for detecting banknotes emitted by the emission module 13 one by one is provided. The second sensor 15 outputs an on signal when a banknote is emitted and continuously outputs an off signal when a banknote release error occurs due to a pickup failure.

A pressing plate 11 is provided to press the banknote at a predetermined pressing force in the discharge direction, that is, the direction of arrow A, so that the discharge module 13 releases the banknote one by one.

A motor 12 for generating rotational power for moving the wheat plate 11 is provided. The motor 12 is a direct current motor or a step motor.

A first pulley 12a and a second pulley 12b are connected to the rotation shaft of the motor 12 by a belt 12c at a position spaced apart from the first pulley 12a by a predetermined interval in a horizontal direction. . The first and second pulleys 12a and 12b and the belt 12c are respectively provided on the left and right sides of the wheat plate 11 to move the wheat plate 11.

When the stacking cassette 10 is mounted in the cash dispenser, the controller 16 controls the driving of the motor 12 to press the stacked banknotes in the discharge direction A to release the stacked banknotes one by one. ) Is provided. The controller 16 performs a bill release operation re-execution mode when a bill release error occurs due to a pickup failure of the pickup roller 13a caused by excessive or insufficient pressure applied to the bills loaded from the wheat plate 11. In order to control the movement of the contact plate 11 by selectively changing the driving direction of the motor 12. Thus, when the banknote is normally released by the pressing force changed as the position of the wheat plate 11 is moved and the signal from the second sensor 15 is outputted, the rerun mode is terminated, and the normal banknote release operation is returned. do. However, if the bill release error persists despite the re-execution mode, the controller 16 preferably notifies a bill release error to the account manager terminal or the management terminal not shown.

In addition, the cash dispenser is provided with a display and input unit 17 for displaying various operation menus and operation states and receiving transaction selections and operation commands from customers.

Next, a bill pressing force control method when a banknote release error of the ATM according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 4 and 5A to 5E.

Figure 4 is a flow chart illustrating a step-by-step method for controlling the bill pressing force when a banknote release error of the cash dispenser according to a preferred embodiment of the present invention is shown, Figures 5a to 5e bill billing pressure when the bill release error shown in Figure 4 In order to explain the control method, an operating state diagram illustrating the operating state of the mill is shown.

In the present embodiment will be described using a cash dispenser having a loading cassette 10 is configured to be removable. In addition, it will be described that the motor 12 that presses the plate 11 provided in the stacking cassette 10 is driven by a preset driving ratio, for example, an on time for 3 ms and an off time for 12 ms.

First, a loading cassette 10 in which banknotes are loaded is mounted on an ATM. For convenience of description, the stacking cassette 10 will be described as being loaded in a full state.

In step S10 of FIG. 4, the controller 16 drives the motor 12 in the direction of the arrow B to press the plate 11 in the discharge direction A, and carries the banknote on which the pickup roller 13a is loaded. The pickup motor 13b is driven to pick up one by one and discharge it to the outside. At this time, the first sensor 14 detects whether the discharge module 13 is moved to the discharge position. When the discharge module 13 is moved to the discharge position and the first sensor 14 outputs an ON signal, the controller 16 determines that the pressing force applied to the banknote is appropriate and stops driving the motor 12. In this way, when a proper pressing force necessary for releasing the banknote from the push plate 11 is applied to the loaded banknote, as the pickup motor 13b of the discharge module 13 is driven, the pickup roller 13a moves in the direction of arrow C. Rotate the loaded bills one by one and release them to the outside. At this time, the second sensor 15 detects the banknote emitted and outputs a signal.

On the other hand, when the pressing force applied to the stacked banknotes from the plate 11 is excessive or insufficient, or when the stacked banknotes are in poor alignment, the pick-up roller 13a cannot pick up the stacked banknotes, thereby causing a bill release error. Occurs. At this time, the second sensor 15 continuously outputs an off signal due to a bill release error. Thus, in the twelfth step S12, if the off signal of the second sensor 15 lasts for a predetermined time or more, the controller 16 determines that a bill release error has occurred and enters the rerun mode of the bill release operation. To control.

The re-run mode of the bill release operation moves the wheat plate 11 forward and backward in the stacking cassette 10 to adjust the pressing force applied to the stack of bills when a bill is released, and realigns the bills with a poor loading state. It refers to the operation to release. In this rerun mode, the forward movement amount of the compact plate starts to be smaller than the backward movement amount, and the forward movement amount gradually changes to be larger than the backward movement amount. The rerun mode will be described in more detail.

When entering the re-execution mode of the bill release operation, the basic operation for solving the pickup failure due to excessive pressing force among the causes of the bill release error. In detail, in the fourteenth step S14, the controller 16 checks whether the first sensor 14 outputs an on signal. That is, when the first sensor 14 outputs an ON signal in a state in which the discharge module 13 is moved to the discharge position, the controller 16 determines that pick-up failure occurs due to excessive pressing force. Thus, in the fifteenth step S15, the controller 16 drives the motor 12 in the direction of the arrow B 'so as to reduce the excessive pressing force so that an appropriate pressing force is applied, and thus the mill 11 is pressed. Is moved in the direction opposite to the discharge direction (A). At this time, the motor 12 is driven with a driving ratio of 3ms on time and 12ms off time. Then, the compact plate 11 is moved from the initial position X to the opposite direction of the discharge direction A to move to the change position X '.

When such a basic operation is performed, the control unit 16 performs the re-run mode of the bill release operation in earnest by moving the plate 11 forward and backward to change the pressing force applied to the bill from the plate 11. Here, the first to third processes which are divided according to the magnitude of the forward movement amount and the backward movement amount will be described separately. In the first process, the forward movement amount of the compact plate is set smaller than the backward movement amount, in the second process, the forward movement amount and the backward movement amount are set to the same value, and in the third process, the forward movement amount is set larger than the backward movement amount. In the present embodiment, for the sake of convenience, a position at which each process starts is referred to as an initial position X, and a changed position after performing each process will be described as a change position X '.

First, the first process will be described in detail with reference to FIG. 5B.

In the sixteenth step (S16), the control unit 16 drives the motor 12 to apply a predetermined pressing force to the stacked banknotes by first moving the plate 11 in the discharge direction A once. In addition, in the eighteenth step S18, the controller 16 controls the plate 11 to move backwards twice (②, ③). Thus, the plate 11 is moved from the initial position X to the change position X 'which has been moved back one time, and the pressing force applied to the loaded banknote is less than the initial pressing force by one forward movement of the plate 11. It becomes larger and then becomes smaller than the initial pressing force by two backward movements. In this case, the initial position X corresponds to the changed position X ′ of FIG. 5A when the 14th step S14 is performed, and when the 14th step S14 is not performed. It corresponds to the initial position (X).

By this operation, the stacked banknotes are rearranged so as to be released by the discharge module 13 according to the change in the pressing force due to the movement of the mill 11. This first process enables the paper to be released normally in the case of a bill release error due to excessive pressure applied to the loaded bills.

Subsequently, in the twentieth step S20, the controller 16 checks whether the bill is released to the outside by the discharge module 13 continuously driven by using the second sensor 15. However, when the banknote release error condition continues and the second sensor 15 continuously outputs an off signal, the controller 16 controls to proceed to the next second process.

Next, the second process will be described in detail with reference to FIG. 5C.

In the twenty-second step (S22), the control unit 16 drives the motor 12 to advance the push plate 11 in the discharge direction A once to apply a predetermined pressing force to the bill. Then, in the twenty-fourth step S24, the control unit 16 controls the plate 11 to move backward ⑤ once. In this way, the plate 11 is moved forward once and moved backward once, starting from the initial position X, and returned to the initial position X again, and the pressing force applied to the loaded banknote is initialized by one forward movement. It becomes larger than the pressing force and returns to the initial pressing force by one backward movement. Accordingly, the banknotes are rearranged to be released by the discharge module 13 in accordance with the change in the pressing force due to the movement of the wheat plate (11). This second process enables the banknote to be normally discharged through the rerun mode when the loaded banknotes are in poor alignment.

Subsequently, in the 26th step S26, the controller 16 checks whether the bill is released to the outside by the discharge module 13 continuously driven by using the second sensor 15. However, when the banknote release error condition continues and the second sensor 15 continuously outputs the OFF signal, the controller 16 controls to proceed to the next third process.

Next, a third process will be described in detail with reference to FIG. 5D.

In the 28 th step (S28), the control unit 16 drives the motor 13 to move the plate 11 in the discharge direction twice (⑥, ⑦) to apply a predetermined pressing force to the bill. Then, in the thirtieth system S30, the control unit 16 controls to move backward one time (⑧). In this way, the plate 11 is moved forward two times and moved backward one time to the changed position X 'which has been moved forward from the initial position X, and the pressing force applied to the loaded banknote is initialized by two forward movements. Although larger than the pressing force and smaller by one backward movement, the state is larger than the initial pressing force in correspondence with the one forward movement. Accordingly, the banknotes are rearranged to be released by the discharge module 13 in accordance with the change in the pressing force due to the movement of the wheat plate (11). This third process makes it possible to release the bills normally when the pressure applied to the loaded bills is insufficient.

Subsequently, in the thirty-second step S32, the controller 16 checks whether the bill is released to the outside by the discharge module 13 continuously driven by using the second sensor 15. However, when the banknote release error condition continues and the second sensor 15 continuously outputs an off signal, the controller 16 displays the banknote release operation error through the display and input unit 17 in step 34 (S34). Displays a message guiding the occurrence of an error. At this time, it is preferable that the controller 16 notifies the management terminal or the accountant terminal of the error occurrence.

On the other hand, due to the continuous banknote release error, the operation state of moving the plate according to the first to third processes can be confirmed through Figure 5e. That is, the plate 11 performs the forward and backward movements (① to ⑧) from the initial position (X) to return to the initial position (X) again, and the bill is changed by the change of the pressing force according to the movement of the plate 11. It is rearranged and discharged to the outside by the discharge module 13.

When the second sensor 15 outputs the ON signal in the twentieth step S20, the twenty-sixth step S26, and the thirty-second step S32, the control unit 16 determines that the banknote is normally in the 36th step S36. It is determined to be discharged to control the banknote release operation re-execution mode and return to the normal banknote release operation. At this time, in the present embodiment, for convenience of description, after performing each of the first to third processes, it is described as checking whether the second sensor 15 is turned on or off, but the controller 16 performs the re-execution mode. In the state of continuously driving the emission module 13 during the continuous check whether the output signal of the second sensor (15). At this time, the plate 11 is moved during the on time of the motor 12, but is fixed at a predetermined position during the off time. This off time is a time waiting for a banknote to be discharged according to the pressing force changed by the movement of the close plate 11. In addition, when the first sensor 14 outputs an ON signal during the re-execution mode of the bill release operation, the controller 16 omits the forward movement of the push plate 11 in the discharge direction A, The first sensor 14 controls to perform only the reverse movement operation until the first sensor 14 outputs an off signal.

Through the above-described process, the present invention realigns the banknotes while changing the pressing force by moving the wheat plates forward and backward when the banknote release error is performed, and re-executes the banknote release operation.

Next, FIG. 6 is a plan view of a stacking cassette for controlling banknote pressing force when a banknote release error is shown according to another embodiment of the present invention, and FIG. 7 is a perspective view of the plate detection sensor shown in FIG. Since the configuration of FIG. 6 is similar to that of FIG. 3, a description of the same configuration will be omitted.

First, referring to FIG. 6, in this embodiment, a plurality of plate detection sensors (hereinafter, abbreviated as 'sensors') 28 are provided at one side of the stacking cassette 20. In the present embodiment, the sensor 28 is installed as the third to fifth sensors 28a, 28b, 28c spaced by a predetermined interval, about 7 cm on the side of the movement path of the plate 21. The sensor 28 uses a limit switch that is a contact sensor. The limit switch detects the plate 21 according to whether or not the mechanical contact with the bill, it is possible to accurately detect the plate 21 regardless of whether the power is on or off. The sensor 28 outputs an on signal when the plate 21 is detected, and outputs an off signal when the plate 21 passes the sensor 28 as the loaded banknote is released. The number, position, and interval of the sensor 28 may be variously changed according to the size of the loading cassette 20, the output of the motor 22, the sensitivity of the sensor 28.

And the control part 26 which controls the drive of the motor 22 which presses the said close plate 21 is provided. The control unit 26 is similar to the third to fifth sensors according to the amount of bills loaded, even when performing the re-execution mode of the bill discharge operation by moving the plate 21 forward and backward in the case of bill release error. The driving ratio of the motor 22 is changed in accordance with the output signals of 28a, 28b, and 28c.

Next, the structure of the plate detection sensor will be described in detail with reference to FIG. 7.

As shown in FIG. 7, the sensor 28 is formed with a body 31 forming an appearance. The body portion 31 is installed on the inner surface of the stacking cassette 20 in a substantially rectangular parallelepiped shape.

One surface of the body portion 31, that is, the surface facing the inside of the loading cassette 20, is in contact with an elastic portion 33 elastically deformed according to the movement of the wheat plate 21, and a part of the elastic portion 33. The switch terminal 32 is formed to be provided. One end of the elastic portion 33 is fixed and is formed to be inclined as a whole. In addition, a roller portion 34 is formed on a part of the elastic portion 33 which is in contact with the wheat plate 21 so that the elastic portion 33 may be easily contacted with the switch terminal 32 when the wheat plate 21 is transferred. Is further provided. When the roller part 34 is in contact with the contact plate 21 and the switch terminal 32 is in contact with the elastic part 33, the sensor 28 outputs an ON signal.

The bill pressing force control method at the time of a bill release error of the ATM according to another embodiment of the present invention configured as described above is similar to the above embodiment. However, the control unit 26 changes the driving ratio of the motor 22 based on the output signals of the third to fifth sensors 28a to 28c which are changed according to the amount of bills loaded in the stacking cassette 20. . This is described with reference to Table 1 in which the output signal tables of the first to third sensors 28a to 28c are shown.

3rd sensor 4th sensor 5th sensor (a) ON ON ON (b) OFF ON ON (c) OFF OFF ON (d) OFF OFF OFF

As shown in Table 1, in the case of (a) in which the banknotes are stacked close to the full state in the stacking cassette, each roller portion 34 of the third to fifth sensors 28a to 28c has a banknote and a mill 21. In contact with the elastic portion 33 is in contact with the switch terminal (32). Accordingly, all of the third to fifth sensors 28a to 28c output the on signals.

Subsequently, in the case of (b) in which the plate 21 passes the third sensor 28a as the bill is released, the contact of the roller portion 34 of the third sensor 28a that has been in contact with the plate 21 is released. The elastic portion 33 is restored to its original state by a predetermined elastic force. As a result, the third sensor 28a outputs an off signal, and the fourth and fifth sensors 28b and 28c output an on signal because the fourth and fifth sensors 28b and 28c are in contact with the bill and the plate 21.

 Then, in the case where the plate 21 passes through the fourth sensor 28b (c), the contact of the roller portion 34 of the fourth sensor 28b that has been in contact with the plate 21 is released, and the elastic portion ( 33) is restored to its original state by a predetermined elastic force. Accordingly, the third and fourth sensors 28a and 28b output the off signal, and the fifth sensor 28c outputs the on signal because the fifth sensor 28c is in contact with the banknote and the plate 21.

Finally, in the case where the plate 21 passes through the fifth sensor 28c (d), the contact of the roller portion 34 of the fifth sensor 28c in contact with the plate 21 is released, and the elastic portion 33 is restored to its original state by a predetermined elastic force. Accordingly, all of the third to fifth sensors 28a to 28c output off signals.

Then, the controller 26 determines the driving ratio of the motor 22 according to the output signals of the third to fifth sensors 28a to 28c. For example, FIG. 8 is a timing diagram illustrating a driving ratio of a motor in order to explain a bill pressing force control method when a bill is released in accordance with another embodiment of the present invention.

In the present embodiment, the control unit 26 drives the motor 22 with an on time of 3 ms and an off time of 12 ms when the banknote is loaded about half of the loading space formed in the stacking cassette 20. In this case, the on time and the off time may be changed according to the output of the motor 22 or the specification of the stacking cassette 20 as a value set by an experimental value.

As shown in FIG. 8, the control unit 26 controls to increase the on / off driving ratio of the motor 22 as the number of banknotes loaded is increased. That is, in the case of (a) in which the third to fifth sensors 28a to 28c are all in contact with the bill and the plate 21 because the loaded bill is near full, the control unit 26 is a motor. The on time for driving the motor 22 is increased to 5 ms while the off time for stopping driving of the 22 is maintained at 12 ms. If a banknote release error occurs in this state, the control unit 26 drives the motor 22 at a driving ratio of 5ms on time and 12ms off time to perform the banknote release operation again.

In the case of (b) in which the bills are normally released and the third sensor 28a outputs the off signal, and the fourth and fifth sensors 28b and 28c continue to output the on signal, the control unit 26 With the off time maintained at 12 ms, change the on time to 4 ms. If a banknote release error occurs in this state, the control unit 26 drives the motor 22 at a driving ratio of 4ms on time and 12ms off time to perform the banknote release operation again.

In addition, in the case of (c) in which the third and fourth sensors 28a and 28b output the off signal and only the fifth sensor 28c outputs the on signal, the control unit 26 maintains the off time at 12 ms. Change the on time from to 3ms. Similarly, when a banknote release error occurs in this state, the control unit 26 drives the motor 22 at a driving ratio of 3ms on time and 12ms off time to perform the banknote release operation again.

In addition, in the case of (d) in which the bills are emitted close to the fully released state and all of the third to fifth sensors 28a to 28c output the off signal, the control unit 26 is on time in a state where the off time is maintained at 12 ms. Decreases to 2ms. Similarly, when a banknote release error occurs in this state, the control unit 26 drives the motor 22 at a driving ratio of 2ms on time and 12ms off time to perform the banknote release operation again.

As a result, the control unit 26 increases the on / off driving ratio by increasing the on / off driving ratio when the amount of the loaded banknotes is close to the full state, thereby increasing the pressing force applied to the stacked banknotes 21 and completely discharging the number of loaded banknotes. As the state approaches, the on / off drive ratio is reduced to reduce the pressing force. In addition, when the control unit 26 performs the re-execution mode of the bill release operation upon bill release error, the control unit 26 drives the motor 22 at a driving ratio changed according to the amount of bills loaded to move the plate 21 forward and backward. To control.

Through the above process, the present invention changes the pressing force applied to the banknotes so that the loaded banknotes can be normally discharged by driving the motor at a driving ratio changed according to the amount of the banknotes loaded when the banknote release error.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and a person of ordinary skill in the art without departing from the spirit and scope of the present invention. It will be apparent that various modifications, changes, and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Although the above embodiment has been described using a cash dispenser, the present invention can be applied to not only banknotes but also automatic teller machines, vending machines, money exchangers, and media issuers that issue various certificates or tickets.

In addition, in the above embodiment, it was described that the amount of reverse movement is reduced by one time while proceeding from the first process to the second process, and the amount of forward movement is increased once by proceeding from the second process to the third process. However, the amount of forward / reverse movement for performing the re-release mode may be variously changed to an appropriate value by the experimental value. For example, the first process may be set to two forwards and four backwards, the second process may be set to two forwards / backwards, the third process to four forwards and two backwards.

In addition, in the above embodiment, the sensing of the position of the wheat plates using three sensors provided at predetermined intervals has been described. However, the present invention may vary the interval, position, and number of sensors according to the specification of the loading cassette, the sensitivity of the sensor, and the like. Can be applied. In addition, the sensor may be applied to various types of sensing sensors as well as limit switches.

In addition, in the above embodiment, the on time was changed to change the on / off driving ratio of the motor. However, the present invention may change the off time or change both the on time and the off time.

1 is a configuration diagram of a loading cassette applied to a general ATM.

Figure 2 is a block diagram of a cash dispenser including a stacking cassette for controlling banknote pressing force when a bill release error in accordance with a preferred embodiment of the present invention.

Figure 3 is a side view showing a detailed configuration of the stacking cassette shown in FIG.

Figure 4 is a flow chart illustrating a bill pressing force control method when a bill release error of the ATM according to a preferred embodiment of the present invention.

Figures 5a to 5e is an operating state diagram illustrating the operating state of the mill plate to explain the bill pressing force control method when the bill release error shown in FIG.

Figure 6 is a side view of a cash dispenser including a stacking cassette for controlling the bill pressing force when the bill release error in accordance with another embodiment of the present invention.

7 is a perspective view showing a detailed configuration of the plate detection sensor shown in FIG.

8 is a timing diagram illustrating a driving ratio of a motor for explaining a banknote pressing force control method when a banknote release error of a cash dispenser according to another embodiment of the present invention.

`` Explanation of symbols for main parts of drawings ''

10: Stacking cassette 11: plate

12: motor 12a, 12b: pulley

12c: belt 13: discharge module

13a: pickup roller 13b: pickup motor

14: emission module detection sensor 15: emission bank detection sensor

16: control unit 17: display and input unit

28: plate detection sensor

Claims (11)

A pressing plate for pressing the medium so that the loaded medium is discharged in order; A driving unit generating rotational power to move the wheat plate; A first sensor for detecting an emission error of the medium; And And a control unit for controlling the driving unit to adjust the pressing force applied to the medium by moving the contact plate back and forth when the medium release error occurs. A pressing plate for pressing the medium so that the loaded medium is discharged in order; A driving unit generating rotational power to move the wheat plate; A first sensor for detecting an emission error of the medium; A plurality of plate detection sensors for detecting the position of the plate; And And a control unit for controlling the drive unit to a driving ratio set based on the position of the close plate so as to adjust the pressing force applied to the medium by moving the close plate back and forth when the medium release error occurs. Device. The method according to claim 1 or 2, A discharge module for discharging the medium pressurized by the moved compact plate to the outside; And a second sensor for detecting whether the discharge module is moved to a preset discharge position so as to discharge the loaded medium normally. And the control unit controls the driving unit to reduce the pressing force by moving the contact plate in a direction opposite to the discharge direction when the discharge module is moved to the discharge position when the medium release error occurs. Device. The method of claim 1 or 2, wherein the control unit, And adjusting the pressing force by performing at least one of a first process of increasing the forward movement of the compact plate and a second process of reducing the backward movement of the compact plate at the time of the medium release error. 3. The method of claim 2, And the sensor is a limit switch. The method of claim 2, wherein the sensor, Body portion formed on the inner surface of the stacking module for loading the bill; An elastic part formed on one surface of the body part facing the inside of the loading module to be elastically deformed according to the movement of the wheat plate; A roller part formed on one surface of the elastic part to be in contact with the contact plate; And And a switch terminal formed to contact a portion of the elastic portion when the roller portion is in contact with the mill plate. A medium pressing force control device as set forth in claim 1 or 2 for changing a pressing force applied to the medium; And a control unit for controlling a driving unit to adjust a pressing force applied to the medium in the case of a medium release error. Pressing the loaded medium in a discharge direction; Discharging the pressurized medium to the outside using a discharge module; Detecting an error in release of the medium; And re-executing a medium ejection operation for controlling the press force applied to the medium by moving back and forth the pressing plate that presses the medium when the medium ejection error occurs. The method of claim 8, Sensing the position of the compact plate for pressing the medium; Changing a driving ratio of a driving unit for pressing the plate according to the sensed position of the plate; And wherein said re-executing step performs a re-execution mode of a medium release operation to drive the drive unit at a drive ratio changed according to the position of said compact plate to adjust the force applied to said medium. The method according to claim 8 or 9, Detecting whether the release module that releases the medium reaches a preset discharge position to release the medium to the outside at the moment when the medium release error occurs in the sensing step; And when the discharge position is reached, moving the contact plate in a direction opposite to the discharge direction to reduce the pressing force. 10. The method of claim 8 or 9, wherein the rerun step, And controlling the pressing force by performing at least one of the first process of increasing the forward movement of the mill and the second process of decreasing the backward movement of the mill.

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