JPH03259830A - Paper sheet handling device - Google Patents

Abstract

PURPOSE:To reduce jam and undiscriminable paper sheet generating ratio by providing a separating means capable of preventing the oblique movement of the paper sheets even when a plurality of paper sheets are entered between the separating roller and a picker roller. CONSTITUTION:In a separating part 3, accumulated bills A are pushed onto a delivery roller 3a by a press plater 16, and in this state the delivery roller 3a delivers bills B between a feed roller 3c and a separating roller 3b, in which the bills can be separated one by one by the rotation of the feed roller 3c and delivered to a following carrying passage. In this case, the carrying posture of the bills B can be controlled before sending to the following carrying passage 13 by a sensor 15 provided in the separating part 3 are regularly carried with an oblique posture less than a determined quantity, so that bill discriminating operation in a discrimination part 4 situated in the rear stage of the separating part 3 can be normally performed.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to the separation of paper sheets in an automatic cash handling device, etc., and provides a separation means suitable for correcting the skewed movement of paper sheets that occurs. The present invention relates to a paper sheet handling device equipped with a paper sheet handling device.

[Prior art] In a conventional paper sheet handling device,
As described in Publication No. 152, the state of paper sheets at the time of separation is detected by a skew detection sensor in a paper sheet feeding mechanism,
The skew is corrected by rotating the separation roller in the opposite direction based on the detected information.

[Problem to be solved by the invention]

In conventional sheet handling devices, two or more sheets are placed between the separation roller and the picker roller during sheet separation.
If two or more sheets happen to enter without considering the case where they enter, the effect of correcting the skew of the sheets to be separated and fed out is reduced.

Further, FAX, LBP, etc. are not provided with a means to prevent paper sheets from being skewed.

An object of the present invention is to provide a separating means that can prevent paper sheets from skewing even when a plurality of paper sheets enter between a separation roller and a picker roller, thereby preventing jams and unidentifiable paper sheets. We aim to reduce the occurrence rate of paper sheet handling equipment with improved reliability, and also to prevent mutual interference when stacking filter paper sheets in the subsequent stages of FAX, LBP, etc., and to improve the arrangement of character strings when printing. It is an object of the present invention to provide a paper sheet handling device that does not shift from a predetermined position.

[Means to solve the problem]

In order to achieve the above object, a paper sheet handling device according to the present invention includes a separating means for separating stored paper sheets one by one, and a conveying means for transporting the separated paper sheets. In a paper sheet handling device, a pair of separation means provided on the left and right sides in the axial direction, at least one pair of drive means for driving each separation means, and each drive means according to a detection signal of skewed paper sheets. This configuration includes a control means for controlling the separation speed of each separation means to correct skew, and a conveyance means having a constant speed faster than the separation speed.

Further, the separating means includes a pair of feeding rollers that are fixed to each drive shaft and provided independently in the left and right direction to feed paper sheets, and a separating roller that is fixed to each drive shaft and facing each feeding roller. and a pair of feed rollers for separating paper sheets, and at least one pair of drive means is connected to each drive shaft.

Further, the driving means may be directly connected to the drive shafts of each feed roller and each feed roller.

Furthermore, the outer periphery of each of the feed roller and feed roller is covered with rubber, and the feed roller is
A portion of each outer periphery is coated with rubber, and each outer periphery of each feeding roller is coated with rubber, and a portion of each outer periphery of each feeding roller is coated with rubber. Alternatively, the outer periphery of the feed roller may be covered with rubber.

The control means may be a means for slowing down the speed of the drive means on the side where the skewed paper sheets are advancing, a means for increasing the speed of the drive means on the side where the paper sheets are lagging behind, or one of the drive means. The structure may include means for correcting the skew of paper sheets by equalizing the speed increase of the drive means and the speed reduction of the other drive means.

Furthermore, the control means may be configured to include means for reducing the conveying speed by the separating means to a low speed and increasing the conveying speed by the conveying means to a high speed.

The separation means may also be configured to include phase detection means for detecting the phase of the feeding roller.

[Effect]

According to the paper sheet handling device of the present invention, the paper sheet detection means is separated and detects the skewed view of the filtered paper sheets, and the control means is configured to drive the left and right sides necessary to correct this skew. The speed of the means is determined and the driving means is controlled to operate at this speed. On the other hand, the drive means drives the feed roller stage and the foot roller independently on the left and right sides based on instructions from the control means.

As a result, paper sheets that are being separated diagonally are given separate conveyance speeds on the left and right sides, so
The skew is corrected and sent out from the separating section.

In addition, by reducing the conveyance speed of paper sheets in the separating means, it is possible to secure a longer time until the paper sheets are transferred from the separating means to the next conveying means, so there is more time to correct the skew of the paper sheets. can be taken for a long time. This increases the speed characteristic margin of the drive means for skew correction.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 to 6.

As shown in Figures 1 to 4, the stored paper sheets B are
A paper sheet handling device equipped with a separation means consisting of a feed roller 3a, a separation roller 3b, and a feed roller 3c for separating sheets one by one, and a conveyance means 13 having a conveyance bell 1-13b for conveying the separated paper sheets B. In the apparatus, a pair of separating means 3a, 3b, and 3c provided on the left and right sides in the axial direction, at least a pair of driving means (drive motor) 29 for driving the respective separating means 3a, 3b, and 3c, and a diagonally traveling paper. A control means (motor control circuit) 50 that controls the separation speed of each separation means 3a, 3b, and 3c via each drive means 29 in response to a detection signal from a sensor 15 of leaves B, and corrects skew feeding. , a conveying means 13 having a constant speed faster than the separation speed.

As shown in FIG. 5, the separating means includes a pair of feeding rollers 3a which are fixed to respective drive shafts 40 and provided independently in the left and right directions to feed paper sheets B, and respective feeding rollers. 3a and each drive shaft 4]
A pair of feed rollers 3c are fixed to the separation roller 3b and separate the paper sheets B, and at least a pair of drive means 29 are connected to each drive shaft 40[deg.4].

Further, the pair of left and right drive means 29, 32 may be directly connected to respective drive shafts 40 and 41, as shown in FIG.

Next, an example in which the present invention is applied to a banknote handling device will be described with reference to FIG. The banknote handling device 1 includes a deposit/withdrawal port 2 for depositing and withdrawing banknotes into the device, a separation unit (separation means) 3 for separating deposited banknotes one by one, and a device for determining authenticity of separated banknotes. and a discriminating unit 4 for identifying severely damaged unfit notes, and an unfit note box 5 for storing unfit notes.
A stacking section 7 for returning banknotes determined to be counterfeit by authenticity determination to the deposit/withdrawal port 2, an extrusion section 8 for pushing out the banknotes accumulated in the stacking section 7 to the deposit/withdrawal port 2, and a discrimination section. a primary stacker 6 for temporarily storing banknotes deemed normal in step 4;
1,000 yen recycling box 10 and 10,000 yen recital box 11 for storing 1,000 yen banknotes and 10,000 yen banknotes separately, and replenishing and collecting banknotes in 1,000 yen recycling box 10 and 10,000 yen recycling box 11. It is equipped with a safe 12 for carrying out this operation, and a front-back reversing mechanism 9 for reversing the banknotes determined to be genuine by the discriminating section 4 and aligning the front and back sides. -2 stackers 6, 1,000 yen recycling box 10,
The 10,000 yen recycling box 11 and the safe 12 both include a stacking section 7 for stacking bills sent one by one and a separating section 3 for separating and taking out the stacked bills one by one again. It is equipped with Further, a pair of belts 13b running opposite to each other are arranged between each element such as the deposit port 2 and the next stacker 6, and the banknotes are conveyed between each element by sandwiching the banknotes between the belts. .

2 and 3 are diagrams for explaining the operations of the separating section 3 and the accumulating section 7 in the - next stacker 6, the 1,000 yen recycling box 10, the 10,000 yen recycling box 1↑, and the safe 12. The figure shows the operation of the separation section 3, and FIG. 3 shows the operation of the accumulation section 7 individually for easy understanding.

Next, the configuration and operation of the separating section 3 will be explained with reference to FIGS. 2 and 5.

The feeding rollers 3a for feeding forward the banknotes B at the top of the stacked banknotes are arranged at symmetrical positions on the left and right, and part of the surface is made of a rubber material and rotates while being pressed against the stacked banknotes. do.

The driving source for this rotation is a feed roller 3C, which will be described later. That is, the rotational force of the shaft of the feed roller 3C is transferred to the belt 1.
-4, and drives the feeding roller 3a.

Feed rollers 3c for separating the banknotes B fed out by the feeding roller 3a one by one and feeding them to the next conveying means 13 are arranged at left and right symmetrical positions, and although not shown, the feed rollers 3c It is driven by the required number of rotations by panel motors placed on the left and right sides of the machine.

The separation roller 3b for separating two or more bills into individual bills is a roller 11 that has a high coefficient of friction with the bills.
It is made up of 0-ra and is fixed.

This provisioning roller 3b is disposed opposite to the feed roller 3c at a position shifted in the axial direction, and is intertwined with each other in the radial direction.

1st sensor 1 for detecting the timing of passage of banknotes
5) The same items are placed in symmetrical positions on the left and right,
A light emitting sensor 15a and a light receiving sensor 151]. These sensors], 5a, and 15b are placed immediately after the foot roller 3C on both sides of the surface through which the banknote B passes, and are placed so as to output an output when the banknote B passes.

The bells 1 to 3b for pinching and conveying banknotes B are arranged such that the pair of bells 1- are opposed to each other.

Guide roller 13a for running bell l-13b
Bells 11 to 13b (not shown) are driven to run by another drive roller. The conveyance speed of the bells 1 to 13b is three times faster than the circumferential speed of the feed roller 3 (3). That is, the same effect can be obtained by controlling the conveyance speed by the separation roller to a low speed and the conveyance speed by the conveyance means to a high speed.

The push plate 1-6 engages with the ball screw 1-7 and moves to the second side by the rotation of the ball screw 17.

The ball screw 17 is rotated by power from a motor 19 via gears 18a and 18b. When separating banknotes, the push plate 1G pushes down the stacked banknotes A by 1- to bring them into contact with the delivery roller 3a. In this case, the contact state 57g between the payout roller 3a and the stacked banknotes is determined by the detection means 32 that detects the position of the payout roller 3a.

Next, there are two sets of feed rollers 3 on the left and right.
The control system for the motor that drives the rollers 3c and the feed roller 3a will be explained with reference to FIG.

As shown in FIG. 4, the control circuit 5o of the motor 29 includes a first interface 23 for receiving the output of the sensor 15, a calculation section 24 for performing calculations, and a phytoroller which is a control target based on the calculation results. It is composed of a control table 25 for obtaining a target value to be given to the drive motor 29, a calculation unit 24 for controlling the motor 29 based on the target value, and a second interface 27 for transmitting a control signal to the motor 29. There is.

That is, the passage timing of the separated banknotes is detected by the two left and right sensors 15, this is input into the first interface 23, and the difference in the passage time of the banknotes between these left and right sensors 1-5 is calculated by the calculation unit 24. Then, depending on the magnitude of this passing time difference, a larger number is determined and the rotational speed of the motor 24 is specified based on the control table and the control unit 2
Give to 6.

That is, the skew amount ΔQ of the banknote is calculated from the time difference between the left and right passing timings, and the speed of the drive motor on the side where the banknote is leading is set as shown below so that the skew amount is below a certain value. -・Decelerate for a fixed period of time. That is, motor speed at the time of detection by sensor 15: ■ Difference time between left and right passing timings: Δt deceleration time 2T.

On the other hand, the control unit 26 applies a control current to the motor 29 via the second interface 27 to control the rotational speed of the motor 29 .

Next, the configuration and operation of the accumulation section 7 will be explained.

The stack guide 20 is rotatably supported around the axis of the roller 21. The conveyance bell l-13b is wound around a roller 21 and is driven by a drive means (not shown). The sensor 22 is a second optical sensor and detects contact with the stacked banknotes.

When banknotes are stacked, the push plate 16 moves downward so that the stacked banknotes do not block the optical path of the upper end detection sensor 22 of the banknotes. Ru.

On the other hand, the banknotes sent by the conveyor bell l-1-3b are guided and stacked by the stack guide 20.

The above configuration enables the following operations.

In the separating section 3, the stacked banknotes A are pressed against the payout roller 3a by a push plate, and in this state, the payout roller 3a rotates and pays out the banknote B between the feed roller 3c and the separation roller 3b, where the foot roller 3C rotates. By doing so, the banknotes can be separated one by one and delivered to the next conveyance path. In this case, the conveyance posture of the banknote B can be controlled by the sensor 15 provided immediately after leaving the separating section 3 before the banknote B is sent out to the next conveyance path 1-3.

On the other hand, in the banknote B stacking section 7, the banknotes B conveyed one by one are guided by the stack guide 20, and the denomination box 1
0.11 or the safe 12 in good alignment.

The above operations produce the following effects.

Since the banknotes separated by the separation unit 3 are always conveyed in an oblique posture with a fixed amount or less, the banknote discrimination unit 4 located after the separation unit 3 can normally perform the banknote discrimination operation, and the banknote stacking unit 7 Also, banknotes can be stacked in an orderly manner without interfering with each other.

In addition, in the conveyance direction switching unit 31 for banknotes B, the gate 3o is also used when switching the gate 30 in order to guide the following banknotes in another direction after completing the guidance of the preceding banknote.
and banknotes B can be guided without interfering with each other.

Furthermore, the same effect can be obtained by controlling the drive speed of the motor for correcting the skew of banknotes using a table set in advance according to the amount of delay in the timing of the passage of banknotes. 5j゛Of course.

Further, in the above embodiment, the feed roller and the feed roller are provided with rubber rollers on a part of the circumference, but the same effect can be obtained even if these rollers are made of rubber rollers all around the circumference. That is, as shown in FIGS. 6 and 7, the feed roller 35a and the delivery roller 35c are covered with rubber all around, and the rotation of the feed roller 5c is made independent of the rotation drive system of the delivery roller 35a. It is equipped with independent motors (drive means) 32.29 for driving the feed roller 35a and feed roller 35c, and when the paper sheets to be separated come to a position where they do not come into contact with the feed roller, the motor 32 stops and the feed roller stops. A control unit 26 for controlling the motor 32 to
A configuration including the following may also be used.

That is, as shown in FIG. 8, when the paper sheets start to be separated,
The peripheral speeds of the feed roller 35a and the feed roller 35c are driven at approximately the same speed Vc. A sensor] 5 detects the skewed state of the paper sheets being separated, and the motor on the leading side of the skewed paper sheets is decelerated to correct the skew. Thereafter, after a predetermined period of time has elapsed, the paper sheet next to the paper strip being separated comes into contact with the feed-out roller 35a, and the feed-out roller is stopped before being fed out. Thereafter, after a predetermined period of time has elapsed, the next sheet is separated by repeating the above operation.

Also, as shown in FIG. 9, motor 2 is used instead of motor 32.
The power of 9 is passed through the electromagnetic clutch 36 to the delivery roller 35
E1 is transmitted to E1, and while paper sheets are being separated, the feed roller is driven at the same circumferential speed as the fee 1 roller. Similarly to the above, when the paper sheets being separated are separated from the feed roller, the mechanical clutch is actuated to move the feed roller. A similar effect of the invention can also be obtained by stopping the driving of.

Furthermore, as shown in FIG. 10, the phase control of the feeding roller 3a is performed by rotating the feeding roller 3a, detecting the position where the output of the sensor 34 is obtained, and inputting it into the motor control circuit.
A control current is applied from the control section 26 to the motor 29 so as to further rotate the feeding roller 3a by a predetermined angle based on this position.

That is, during the repeated separation of a large number of sheets, the speed of the motor 29 is then increased by the amount of skew that has been slowed down in order to correct the skew of the sheets.

〔Effect of the invention〕

According to the present invention, by correcting the skew of paper sheets using the separation means of the automatic sheet handling device, the skew state of the paper sheets after separation can be reduced to a predetermined value or less. There is an effect that banknotes can be processed without errors in the leaf post-processing section, such as the discrimination section, the goo 1 to actuator, and the stacking section.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an embodiment of the apparatus to which the present invention is applied, FIG. 2 is a cross-sectional view explaining the operation of the separation means in FIG. 1, and FIG. 3 is a diagram explaining the operation of the accumulating section in FIG. 1. FIG. 4 is a block diagram of a control circuit explaining one embodiment of the control method in the present invention, FIG. 5 is a diagram showing the configuration of the separation means, and FIG. 7 is a block diagram illustrating the control method of the separating means shown in FIG. 6, FIG. 8 is a diagram explaining the control details of the separating means shown in FIG. 7, and FIG. 9 is a block diagram illustrating the control method of the separating means shown in FIG. FIG. 10 is a diagram showing the separating means of another embodiment, and FIG. 10 is a diagram showing the separating means of the present invention. 3... Separation section (separation means), 7... Accumulation section, 15.
...first sensor, 22...second sensor.

Claims (1)

[Claims] 1. Separating means for separating stored paper sheets one by one;
A paper sheet handling device comprising a conveying means for conveying the separated paper sheets, a pair of separating means provided on the left and right sides in the axial direction, and at least one pair of driving means for driving the respective separating means. , a control means for correcting the skew by controlling the separation speed of each separation means via each drive means in response to a detection signal of the skewed paper sheet, and a constant speed faster than the separation speed. A paper sheet handling device comprising the above-mentioned conveying means. 2. The separation means includes a pair of feeding rollers that are fixed to each drive shaft and provided independently in the left and right direction to feed paper sheets, and a pair of feeding rollers that are fixed to each drive shaft and are separated from each other. 2. The paper sheet handling device according to claim 1, further comprising a pair of feed rollers for separating the paper sheets together with the roller, and at least one pair of drive means connected to each drive shaft. 3. The paper sheet handling device according to claim 1 or 2, wherein the drive means is provided directly connected to the drive shaft of each feed roller and each feed roller. 4. The paper sheet handling device according to claim 2, wherein the outer periphery of each of the feed roller and the feed roller is coated with rubber. 5. The paper sheet handling device according to claim 2, wherein a part of the outer periphery of each feed roller is coated with rubber, and each outer periphery of each feed roller is coated with rubber. 6. The sheet handling device according to claim 2, wherein a part of the outer periphery of each of the feed rollers is coated with rubber, and an outer periphery of the feed roller is coated with rubber. 7. The control means is a means for slowing down the speed of the driving means on the side where the skewed paper sheets are advancing, a means for increasing the speed of the driving means on the side where the paper sheets are lagging behind, or one of them. 2. The paper sheet according to claim 1, further comprising means for correcting the skew of the paper sheet by equalizing the speed increase of one driving means and the speed reduction of the other driving means. Paper sheet handling device according to 3. 8. The paper sheet handling apparatus according to claim 1, 2 or 3, wherein the control means comprises means for reducing the conveying speed of the separating means to a low speed and increasing the conveying speed of the conveying means to a high speed. 9. The sheet handling device according to claim 1 or 2, wherein the separation means includes phase detection means for detecting the phase of the feeding roller.