JPH0940216A - Paper sheet delivery device and exchange device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a paper sheet delivery device to have high delivery performance by using pressure detection means to detect changes in force applied to a delivery means when the delivery means delivers paper sheets, and allowing delivery failure detection means to detect paper sheet faults in accordance with this pressing force. SOLUTION: When a delivery signal for bills A is input, whether or not feed rollers R3, R4 are set in initial positions appropriate for delivering the bills one by one is determined, and then a timer is set to rotate pickup rollers R1, R2 by an amount of rotation appropriate for delivering the bills A one by one and then to stop the rollers R1, R2. Before delivery of the bills A, pressure detection using strain sensors S3, S4 for the right and left pick rollers, detection of the torque of the pickup rollers R1, R2 using a torque sensor S7, and detection of pressures on gate rollers R5, R6 using strain sensors S5, S6 for the gate sensors are started. When the sensors S3 to S7 detect that the bill A itself has some fault, the pickup rollers R1, R2 and the feed rollers R3, R4 are rotated reversely to stop delivery immediately before delivery from the feed rollers R3, R4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet feeding device which is internally configured in an automatic transaction machine for handling paper sheets such as banknotes, and more particularly to a paper sheet feeding management performance. The present invention relates to a paper sheet feeding device and a transaction processing device.

[0002]

2. Description of the Related Art In general, this type of paper sheet feeding device operates to feed out paper sheets while detecting and confirming the feeding state of the paper sheets that have been fed and started one by one. At this time, if a feeding abnormality such as a skew, continuous feeding, emptying, conveyance interval failure, size failure, or deviation in the width direction is recognized, the reject processing or the return processing is immediately performed. As a result, it is possible to avoid adverse effects on the subsequent stages and to smoothly perform paper sheet stacking operation, sorting operation, transport operation, front and back reversing operation, and prevent occurrence of jam (paper jam) due to abnormal paper sheet occurrence. (See, for example, Japanese Patent Application No. 2-313714 of the prior application).

However, such a detecting means is arranged at the latter stage of the feeding device to detect and confirm the feeding of the paper sheet, and the fed abnormal paper sheet is conveyed as it is to the return processing position for a long time. In the process, the occurrence rate of jam was high due to the sorting process and the accumulation process. Further, the second paper sheet that is subsequently fed out is also adversely affected, and the jam occurrence rate is similarly high.

Further, when a paper sheet is emptied, a feeding operation is executed for a fixed time. However, since the feeding operation is carried out for a fixed time without the cause of abnormality being detected, a jam may be induced or a paper sheet may be removed. Could damage the equipment and shorten the life of the equipment.

[0005]

SUMMARY OF THE INVENTION Therefore, according to the present invention, when a feeding abnormal element is detected during feeding of a paper sheet, the feeding is immediately stopped, the recovery operation is performed, and then the feeding operation is restarted. An object of the present invention is to provide a paper sheet feeding device and a transaction processing device that the user has.

[0006]

According to the first aspect of the present invention,
A paper sheet feeding device having a feeding means for feeding a paper sheet, which is based on a pressure detection means for detecting a change in force applied to the feeding means and a pressure detected by the pressure detection means. And a feeding abnormality detecting means for detecting a feeding abnormality of the paper sheet.

According to a second aspect of the invention, the feeding abnormality detecting means is provided with subdivision determining means for subdividing and discriminating the detected feeding abnormality of the paper sheet.

According to the third aspect of the present invention, there is provided a control means for performing an operation of recovering the paper sheet feeding abnormality in accordance with the determination content determined by the subdivision determination means.

According to a fourth aspect of the present invention, there is provided a transaction processing device which is equipped with a paper sheet feeding device and performs transaction processing.

[0010]

According to the present invention, when the feeding means feeds the paper sheet, the pressing force detecting means detects a change in the force applied to the feeding means, and the feeding abnormality detecting means detects the paper sheet based on the pressure. Detects abnormal feeding of the same kind.

Further, when the feeding abnormality detecting means detects the feeding abnormality of the paper sheet, the subdivision determining means subdivides and discriminates the detected feeding abnormality of the paper sheet.

Further, the control means restores the paper sheet feeding abnormality in accordance with the content of the determination made by the subdivision determining means.

A transaction processing apparatus equipped with such a sheet feeding device processes a sheet.

[0014]

As a result, since it is possible to detect the feeding abnormality of the paper sheet at the start of feeding the paper sheet, the restoration operation can be performed at the feeding start time to eliminate the feeding abnormality element at the feeding start time. Therefore, it is possible to convey and supply all the paper sheets to the conveyance path in the subsequent stage in an appropriate state, eliminate the jam occurrence element, and avoid down of the paper sheet processing system, and reliable and stable feeding. Is obtained.

Further, since the detection configuration detects the abnormal feeding element for the sheet from the change state of the force applied to the feeding means when the sheet is fed, the cause of the abnormal feeding can be subdivided and specified. It is possible to select and restore the optimum restoration operation according to the present feeding condition based on the identification of the above. Since such accurate detection information is obtained for each delivery, it is possible to adjust the delivery conditions to the optimal delivery conditions for each sheet that change depending on the type and distribution degree of the sheet, and then perform delivery while self-correcting during operation. it can. Further, in the case where the paper sheet feeding device is internally configured in the transaction processing device, it is possible to carry out the transaction processing of the paper sheet with stable feeding performance and high reliability.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an automatic teller machine (ATM) 11 installed in a financial institution such as a bank. This ATM 11 is a CRT 12 also serving as a touch panel for displaying transaction operations to a customer and a passbook insertion slot on the upper front surface of the main body of the apparatus. 13, a card insertion slot 14, a coin deposit / withdrawal slot 15, and a banknote deposit / withdrawal slot 16
And a handling indicator 17 are provided to allow transactions such as deposit, withdrawal, transfer, passbook entry, and balance inquiry.

FIG. 2 shows a block diagram of the control circuit of the ATM 11. The CPU 21 controls each circuit device according to a program stored in the ROM 22, and the control data is stored in the RAM.
It is stored so that it can be read at 23.

The CPU 21 is the interface 2
4, the CRT 12, the passbook processing unit 25, the card processing unit 26, the coin processing unit 27, the bill processing unit 28, the statement processing unit 29, the journal processing unit 30, the center communication processing unit 31,
A remote monitoring device (CRMC) communication processing unit 32 and a staff panel processing unit 33 are connected.

Of these, the CRT 12 displays various transaction display guides and their operating procedures, and has a touch input function that allows touch input corresponding to the display portion displayed on the screen.

The passbook processing section 25 reads transaction data of the passbook inserted in the passbook insertion slot 13 and writes update data, and performs transaction data and unregistered data entry processing in the passbook print field. Further, the passbook is returned to the passbook insertion slot 13 when the transaction ends and is cancelled.

The card processing unit 26 reads transaction data of the cash card inserted in the card insertion slot 14 and writes updated data, and ejects the card to the card insertion slot 14 when the transaction is completed or canceled.

The coin processing unit 27 takes in the coins inserted into the coin deposit / withdrawal port 15 and accepts the coins therein, and discharges the coins from the coin deposit / withdrawal port 15 at the time of dispensing and canceling the deposit.

The banknote processing unit 28 takes in the banknotes inserted into the banknote pay-in / pay-out port 16 and receives the banknotes therein, and ejects the banknotes from the banknote pay-in / pay-out port 16 at the time of paying out and canceling the payout.

The statement slip processing unit 29 issues a statement slip in which transaction data of various transaction contents such as deposit / withdrawal transaction and balance inquiry are described for each transaction.

Each time the journal processing unit 30 issues a statement slip, it saves a journal (copy slip) having the same recorded contents inside the apparatus.

The center communication processing unit 31 sends the edited deposit / withdrawal request message, bookkeeping request message, etc. to the center 34, and receives the automatic transaction data such as deposit / withdrawal reply and book data sent from the center 34. To do.

Remote monitoring device (CRMC) communication processing unit 32
Sends the detection data of ATM11 to CRMC,
The response data returned from the MC is received and processed.

The clerk panel processing section 33 handles a clerk panel provided inside the ATM to attach and detach bills and coins,
Execute operations such as distribution / scrutiny, fault recovery and maintenance inspection.

FIG. 3 shows a banknote processing device 35 which is internally provided in the ATM 11. The banknote processing device 35 is connected to the banknote pay-in / pay-out port 16 and is provided with a temporary holding section 36 via a transfer line L and an operating section. The cartridge 37, the denomination-based stackers 38a to 38c, the banknote collecting unit 39, and the like are conveyed and connected, and the denomination-specified denomination and the number of denominations are fed out from the denomination-based stackers 38a to 38c. ing.

FIGS. 4 and 5 show a bill feeding device 41 installed at a bill feeding / withdrawing operation position. The bill feeding device 41 is disposed along a feeding path 42 for bills A fed from, for example, the stacker 38a. The left and right pickup rollers R1 and R2 for initial feeding, and the left and right feed rollers R
3, R4, left and right gate rollers R5, R6, left and right feeding detection sensors S1, S2, and left and right pressing force adjusting mechanism 4
3, 44 and left and right gap adjusting mechanisms 45, 46.

The above-mentioned stacker 38a includes a bill pressing plate 47.
Then, the stacked banknotes A are pressed and urged upward from below, and the pickup rollers R1 and R2 which are divided into left and right are arranged at the upwardly opposed positions which are pressed and urged to both pickup rollers R1 and R2. The stacked banknotes A are pressed and received to be received, and the received topmost banknote A is waited in a contact-corresponding state in which one roller can be drawn out by these rollers R1 and R2.

These left and right pickup rollers R1 and R
In driving 2, the rotation transmission force from the pickup roller pulse motor M1 is transmitted to the rollers R1 and R2 via the rotation shaft 48 and both transmission belts B1 and B2 which are installed in the feeding width direction. Both rollers R1 and R2
By rotationally driving, the banknote A on the upper surface is sequentially initially fed out from the stacker 38a.

The left and right pickup rollers R
1 and R2 are urged downward by the left and right urging springs 49 and 50 via the pressing arms 51 and 52 for contacting the bills.

At the feeding position of the feeding path 42, the left and right feed rollers R3 on which a high-friction member 53 such as a rubber material for carrying out one sheet with one rotation is mounted on a part of the peripheral surface.
, R4 and left and right gate rollers R5, R6 for single sheet feeding control that regulates the rotation in the feeding direction are provided in pairs, and these rollers R3 to R6 are formed in an overlapped form so as to correspond to the unevenness for promoting separation. The banknotes A are fed out one by one.

The left and right feed rollers R3, R
When driving 4, the feed roller pulse motor M
The rotation transmission force from 2 is applied to the rotating shaft 5 installed in the feeding width direction.
The driving force is transmitted to both rollers R3 and R4 via No.4.

The above-mentioned left and right gap adjusting mechanisms 45 and 46 are
Taking the gap adjusting mechanism 45 on the one side as an example, which has the same mechanism on the left and right sides, the tilt lever 55 for allowing the tilting of the gate roller R5 to be supported, and the tilting amount of the tilting lever 55 are adjusted to control the gate roller R5. An expansion and contraction adjusting shaft 56 for adjusting the overlap amount between the feed rollers R3 is provided.

The above-mentioned tilt lever 55 has a G-shape, and the gate roller R5 described above is pivotally attached to the G-shaped projecting piece 57 in the middle portion thereof, and the upper end pivotal support portion 58 of the tilt lever 55 is used as a tilt fulcrum. The gate roller R5 is biased and supported by the feed roller R3 by the biasing action of the biasing spring 59 connected to the lower end of the tilting lever 55.

The expansion / contraction adjusting shaft 56 is expanded / contracted by an actuator (not shown) to connect the tilting lever 55 and the frame 60, and the tilting lever 55 side is moved forward and backward with the frame 60 as a reference point to feed the gate roller R5 and the feed roller. Finely adjust the gap facing the roller R3.

The left and right pickup rollers R1 and R
The pick-up roller strain detection sensors S3 and S4 are attached to the left and right pressing arms 51 and 52 corresponding to 2 to detect changes in the force applied to the pick-up rollers R1 and R2 on both sides during bill feeding. S3
, S4 is detected from the output waveform and the propriety of feeding is judged.

Similarly, the left and right tilting levers 55, 55 corresponding to the left and right gate rollers R5, R6 are provided with gate roller strain detection sensors S5, S6, respectively, so that the force applied to the gate rollers R5, R6 at the time of feeding the banknotes can be reduced. The change is detected from the output waveforms of the gate roller strain detection sensors S5 and S6 to determine whether the feeding is appropriate.

Further, the rotary shaft 48 of the pickup roller
A torque detection sensor S7 is attached to the torque detection sensor S7, and the change in the force applied to the rotary shaft 48 of the pickup rollers R1 and R2 at the time of feeding the bill is detected from the output waveform of the torque detection sensor S7 to determine the feeding propriety.

FIG. 6 shows a block diagram of a control circuit of the bill feeding device 41. The CPU 61 controls each circuit device according to a program stored in the ROM 62, and the control data is stored in the RAM 63 so as to be readable.

The CPU 21 controls the pulse motors M1 and M2 through the motor driver circuits 64 and 65 at the time of feeding the bill.
And detecting the detection signals of the respective detection sensors S1 to S7 at the time of this feeding through the A / D conversion circuits 66 to 72,
Further, the timer T measures the rotational driving time of the pickup rollers R1 and R2.

By the way, the above-mentioned detection sensors S1 to S7
When it is determined whether or not the bill A is properly fed, if the bill is not properly fed,
Further, the abnormality contents are subdivided from the output waveforms of the pickup roller strain detection sensors S3 and S4, the gate roller strain detection sensors S5 and S6, and the torque detection sensor S7 so that the abnormality contents can be clearly detected and determined. Detect and judge.

As shown in the time chart of FIG. 7, the output waveforms of the detection sensors S3 to S7 are compared with normal waveforms, and if they are out of the reference permissible range, it is determined that an abnormality may occur. Further, from the characteristics of the waveform analysis and the frequency analysis of the respective detection sensors S3 to S7, the type of abnormality and the cause of abnormality are estimated.

For example, with respect to the reference output waveform 71 of the torque detection sensor S7 in FIG. 7, as indicated by the broken line, the pickup roller R is output from the output waveform of this torque detection sensor S7.
When it is detected that the feeding load of 1 and R2 is still high, it is estimated that the bill is in the feeding state of the half-folded bill A with a high feeding load in which the bill is folded in two, as shown in FIGS. 8 to 10. Is presumed to be deformed or torn along with the feeding of the half-folded banknote A and to be fed out of two.

Further, as shown in FIG. 11, when it is detected that the stop timing of the pickup rollers R1 and R2 is late, the bill feeding interval cannot be sufficiently set, and the second bill is continuously fed after the first bill. Then, it is estimated that the buckling deformed banknote A is generated by colliding with the first banknote. On the contrary, as shown in FIG. 12, when it is detected that the stop timing of the pickup rollers R1 and R2 is early, it is presumed that the trailing footnote A, which hinders the feeding of the first bill, will be fed out.

Further, as shown by a broken line with respect to the reference output waveform 72 of the strain detection sensor S5 for the right gate roller in FIG. 7, the output waveform of the strain detection sensor S5 for the right gate roller is used to output the right gate roller at the initial stage of feeding. It is estimated that a half-folded banknote A will be generated when the pressing force of R5 is suddenly increased, and when the pressing force of the right gate roller R5 is detected to be rapidly increased at the end of feeding, as shown in FIG. , It is estimated that the continuous bill A is generated.

Similarly, with respect to the reference output waveform 73 of the strain detection sensor S6 for the left gate roller in FIG. 7, as shown by the broken line, from the output waveform of the strain detection sensor S6 for the left gate roller to the left at the initial stage of feeding. If the pressing force of the gate roller R6 is not detected, it is estimated that a skew will be generated during that time, and if the excessive pressing force of the left gate roller R6 is detected at the end of the feeding, as shown in FIGS. 8 to 11, as shown in FIGS. It is presumed that the half-folded bill A is fed out, or that the bill itself is abnormal due to a gap abnormality between rollers or deformation or breakage.

Further, if the output waveform of the strain sensor S3 for right pickup roller coincides with the reference output waveform 74 of the strain sensor S3 for right pickup roller in FIG. 7, an appropriate pressing force acts. It is presumed that stable feeding is performed.

On the other hand, with respect to the reference output waveform 75 of the strain detection sensor S4 for the left pickup roller in FIG. 7, as shown by the broken line, from the output waveform of the strain detection sensor S4 for the left pickup roller to the left at the end of feeding. When the excessive pressing force of the pickup roller R2 is detected, it is presumed that the continuous paper currency A is generated as shown in FIG. Further, if abnormal vibration is detected at the end of feeding, it is estimated that the frictional force of the pickup roller has decreased, it is determined that cleaning of the roller is necessary or it is time to replace the roller, and that fact is output and guided to the staff.

As described above, since the bill feeding abnormality is detected at the time of feeding the bill, and the abnormality content can be subdivided and specified, the CPU 61 detects the feeding abnormality and at the same time specifies the abnormality content. Stable feeding can be performed by starting a recovery operation corresponding to the specified abnormality content at the feeding point.

In this recovery operation, the feeding operation is stopped at the time of detecting the feeding abnormality and the restoration processing is performed for each abnormal form. When the place where the bill itself is detected to be abnormal is the bill deposit / withdrawal port 16, The stacker 38a is returned to the customer as it is, and in the case of the stacker 38a, the occurrence of a jam is displayed or reject processing is performed to prevent the occurrence of an abnormality due to an abnormality of the bill itself.

Further, when it is detected that there is an abnormality in the bill feeding device 41 itself, for example, when a skew or a gap between notes is detected from a change in the pressing force of the gate roller, or when a change in the pressing force of the gate roller and the pickup roller is detected. Empty
When the continuous feeding is detected, the restoration contents are: 1, gate rollers R5, R6 and feed rollers R3, R
The gap facing 4 is adjusted by the expansion and contraction adjusting shaft 56. 2. Adjust the pressing force of the pickup rollers R1 and R2. 3. Clean or replace the pickup rollers R1 and R2.

Further, when the abnormal torque of the pickup rollers R1 and R2 is detected, or when the abnormal pressing force of the pickup rollers R1 and R2 is detected, the stop timing of the pickup rollers R1 and R2 is corrected.

FIG. 14 shows the relationship between the bill feeding interval and the pressing force of the pickup roller in the recovery operation example.
In the empty detection region 142 that is detected as other than the above, it is determined that the repeated output of the first sheet is insufficient. Further, in the continuous feeding detection area 143 with a low pressing force, as shown in FIG. 15, it is determined that the regulation force for the second banknote A is reduced. On the contrary, in the continuous feeding detection area 144 with a high pressing force, as shown in FIG. 16, it is determined that the bill output of the banknote A is set high. In this way, the cause of the abnormality is clarified, and based on this clarification, the optimum recovery operation according to the present feeding condition is executed.

Further, every time when a bill is started to be fed out, accurate feed-out detection information for the bill is obtained, so that it is possible to adjust to an optimum feeding condition for each bill that changes depending on the kind and circulation degree of the bill. It can be drawn out while self-correcting.

The processing operation of the bill feeding device 41 thus configured will be described with reference to the flowchart of FIG. Now, when the bill feeding signal is input, the CPU 61 detects and confirms whether the feed rollers R3 and R4 are set to the initial positions suitable for feeding one sheet (step n1).
), Set timer T and pick up roller R1,
The rotation of R2 is stopped at a rotation amount suitable for taking out one bill A (steps n2 to n4).

At this time, the CPU 61 starts the pressing detection of the left and right pickup rollers R1 and R2 by the left and right pickup roller distortion detection sensors S3 and S4 prior to the feeding of the bill A, and the torque detection sensor S7 picks up the same. The torque detection of the rollers R1 and R2 is started, and the pressure detection of the gate rollers R5 and R6 is started by the gate roller strain detection sensors S5 and S6 (step n5).
~ N7).

The bill A from these detection sensors S3 to S7
If it is confirmed that there is no abnormality in itself and that there is no abnormality in the bill feeding device 41, the CPU 61 determines that proper feeding is performed and allows the bill A to be fed (steps n8 to n).
9).

On the other hand, when it is detected that the bill A itself is abnormal, the pickup rollers R1 and R2 and the feed rollers R3 and R4 are reversely rotated to immediately stop the feeding before feeding from the feed rollers R3 and R4. (Step n10).

When it is detected that the bill feeding device 41 itself is abnormal, the pickup rollers R1 and R are immediately connected.
The rotation of 2 is stopped to stop feeding, and the bill feeding device 41
The recovery process of itself is started (steps n11 to n12).

Next, the processing operation when the feeding state of the bill is detected by using the torque detection sensor S7 will be described with reference to the flowchart of FIG. When paying out bills, the CPU
Reference numeral 61 takes in the torque detection data of the pickup rollers R1 and R2 from the torque detection sensor S7 prior to feeding the banknote A (step n21), removes noise from the read torque detection data, and starts waveform analysis. (Steps n22 to n23).

As shown in FIG. 19, this compares the peak output T1 of the positive torque and the peak output T2 of the negative torque with normal values, and the positive torque output time t1 and the negative torque output time t2 are normal. The value is compared with the value, and finally the gradient ΔT of the torque output is compared with the normal value (steps n24 to n27).

If there is no abnormality in comparison with these normal values, it is determined that the torque is normal and the pickup rollers R1 and R
It is determined that the feeding operation by 2 is properly performed (step n28).

On the other hand, if it is detected that there is an abnormality compared with the normal value, it is determined that the feeding abnormality has occurred due to the pickup rollers R1 and R2 (step n29). Further, not only the waveform analysis but also the frequency analysis can detect the feeding abnormality. This is as shown in FIG.
The power spectrum of the input wave is created by (Fast Fourier Transform), the peak outputs f0 and f1 obtained from this power spectrum are compared with normal values, and the peak frequencies are compared with normal values, and compared with these normal values. If there is no abnormality, it is determined that the torque is normal, and the pickup rollers R1 and R
It is determined that the feeding operation by 2 is properly performed (steps n30 to n32).

On the other hand, when it is detected that there is an abnormality as compared with the normal value, it is determined that the feeding abnormality has occurred due to the pickup rollers R1 and R2. CP based on this abnormality judgment
U61 immediately stops the rotation of the pickup rollers R1 and R2 to stop the feeding, and the pickup roller R1
, R2 is started (step n3)
3).

Next, the area setting processing operation for determining the suitability of the detected data will be described with reference to the flowchart shown in FIG. First, the CPU 61 first receives a bill acceptance rate (the number of deposits accepted / the number of deposits) of the number of sheets to be processed when setting the area.
And the acceptance rate according to the feeding performance of the bill feeding device 41 are compared to obtain a predicted acceptance rate (step n41), and
A jam caused by the feeding performance of the bill feeding device 41 with respect to the jam occurrence rate (number of jam occurrences / number of conveyed sheets) (circulation degree of bills, ambient environment of temperature and humidity, machine difference due to device error, deterioration degree due to wear and dirt of device parts) The predicted jam occurrence rate is calculated by comparing the occurrence rate (step n42), and FIG. 22 is obtained from the acceptance rate and the jam occurrence rate.
As shown in, the range of the normal area is set. This is because there is a contradictory relationship between increasing the acceptance rate of bills and decreasing the occurrence rate of jams, and in this case, it is desired that the normal area is set as wide as the device 41 allows.
As the abnormality determination parameter that determines the reliability of the device 41, the range of the normal region is changed and set so that the jam occurrence rate becomes the specified value (step n43).

After the normal area is set, it is determined whether it is appropriate by comparing it with the input value. If the input value is in the normal area, it is determined that the bill feeding operation is properly performed (step n44), and the normal area is determined. If it comes off, a jam may occur, so the feeding of the bills is stopped (step n45).

FIG. 23 shows a case where a normal area cannot be set, which is due to an unacceptable acceptance rate curve 231 with a low acceptance rate and an unacceptable jam occurrence rate curve 232 with a high jam occurrence rate. The values do not overlap, and therefore the CPU 61 determines that continuous operation is impossible. At this time, the operation is stopped and the staff is notified of that fact by an alarm output or the like.

As described above, since the bill feeding abnormality can be detected at the bill feeding start time, the recovery operation can be simultaneously performed at the bill feeding start time to eliminate the feeding abnormality at the feeding start time. Therefore, it is possible to always convey and supply the bill in an appropriate state without conveying the bill determined to be the feeding abnormality to the conveying path in the subsequent stage, and to eliminate the jam occurrence element and reliably avoid the down of the bill processing system. It is possible to obtain a reliable and stable feeding.

Further, since the detection configuration detects the abnormal feeding element for the bill from the change state of the force applied to the feeding system at the time of feeding the bill, the cause of the abnormal feeding can be subdivided and specified.
Based on the identification of the cause of this abnormality, it is possible to select and restore the optimum restoration operation according to the present feeding conditions. Furthermore, since accurate detection information can be obtained each time the bill is started to be fed out, it can be fed out while being self-corrected during operation by adjusting to the optimal feeding condition for each bill that changes depending on the type of bill and the degree of circulation, Such a bill feeding device is AT
When M is internally configured, the payout performance is stable and highly reliable banknote transaction processing can be performed.

In the correspondence between the configuration of the present invention and the above-described embodiment, the paper sheet feeding device of the present invention corresponds to the bill feeding device 41 of the embodiment, and hereinafter, the transaction processing device is ATM11. Paper sheets correspond to the banknote A,
The feeding means includes left and right pickup rollers R1 and R2,
Corresponding to the feeding system of the left and right feed rollers R3, R4 and the left and right gate rollers R5, R6, the pressurizing force detection means includes the pickup roller strain detection sensors S3, S4 and the gate roller strain detection sensors S5, S6. The feeding abnormality detecting means, the subdivision determining means, and the controlling means correspond to the CPU 61, but the present invention is not limited to the configuration of the above-described embodiment.
For example, instead of the torque detection sensor S7, torque data can be obtained from the motor current value of the pulse motor M1.

[Brief description of drawings]

FIG. 1 is an external perspective view of an ATM according to the present invention.

FIG. 2 is a block diagram of an ATM control circuit according to the present invention.

FIG. 3 is an internal configuration diagram of the bill processing apparatus of the present invention.

FIG. 4 is a side view of an essential part showing a bill feeding device of the present invention.

FIG. 5 is a plan view showing a bill feeding device of the present invention.

FIG. 6 is a control circuit block diagram of the bill feeding device of the present invention.

FIG. 7 is a time chart showing an output waveform of the bill feeding device of the present invention.

FIG. 8 is an explanatory view showing a fed-out state of a half-folded banknote of the present invention.

FIG. 9 is an explanatory view showing a deformed and extended state of a half-folded banknote of the present invention.

FIG. 10 is an explanatory view showing a two-sheet feeding state in which a half-folded banknote of the present invention is attracted.

FIG. 11 is an explanatory view showing a generation state of buckling banknotes of the present invention.

FIG. 12 is an explanatory view showing a generation state of a skirted banknote of the present invention.

FIG. 13 is an explanatory view showing a generation state of the continuous dispensing banknote of the present invention.

FIG. 14 is a chart showing the relationship between the bill feeding interval and the pressing force of the pickup roller of the bill feeding device of the present invention.

FIG. 15 is an explanatory view showing a continuous feeding state of a pressing force insufficient region of the present invention.

FIG. 16 is an explanatory view showing a continuous feeding state of an excessive pressing force region of the present invention.

FIG. 17 is a flowchart showing a processing operation of the bill feeding device of the present invention.

FIG. 18 is a flowchart showing a detection processing operation using the torque detection sensor of the present invention.

FIG. 19 is an explanatory diagram showing waveform analysis using the torque detection sensor of the present invention.

FIG. 20 is an explanatory diagram showing frequency analysis using the torque detection sensor of the present invention.

FIG. 21 is a flowchart showing a normal region setting processing operation of the bill feeding device of the present invention.

FIG. 22 is an explanatory diagram when a normal area of the present invention is set.

FIG. 23 is an explanatory view showing a case where an abnormal extension in which a normal area of the present invention cannot be set occurs.

[Explanation of symbols]

 11 ... ATM 16 ... Banknote deposit / withdrawal port 35 ... Banknote processing device 38a-38c ... Stacker 41 ... Banknote feeding device 61 ... CPU 71-75 ... Standard output waveform 141 ... Normal area A ... Paper R1 and R2 ... Pickup roller R3, R4 ... Feed rollers R5, R6 ... Gate rollers M1, M2 ... Pulse motors S3 to S7 ... Detection sensor

Claims (4)

[Claims] 1. A paper sheet feeding device comprising a feeding means for feeding a paper sheet, the pressure detecting means detecting a change in force applied to the feeding means, and the pressure detecting means. A sheet feeding device including a feeding abnormality detection unit that detects a feeding abnormality of a sheet based on the applied pressure. 2. The paper sheet feeding device according to claim 1, wherein the feeding abnormality detecting means includes subdivision determining means for subdividing and discriminating the detected feeding abnormality of the paper sheet. 3. The paper sheet feeding device according to claim 2, further comprising control means for performing an operation of recovering the paper sheet feeding abnormality in accordance with the content of the determination made by the subdivision determination means. 4. A transaction processing apparatus comprising the paper sheet feeding apparatus according to claim 1, 2 or 3, and performing transaction processing.