JPS6248272B2 - - Google Patents

Description

[Detailed description of the invention]

"Industrial Application Field" This invention relates to a bill type discrimination device for a paper sheet counting machine, and in particular, it separates stacked paper sheets one by one by friction or suction and peeling them off, and uses rollers, belts, etc. The present invention relates to a bill type discriminating device for a paper sheet counting machine that transports paper sheets at predetermined intervals and counts the number of paper sheets by mechanical or electrical means during the transport process. ``Prior art'' Conventionally, this type of paper sheet counting machine does not distinguish the type of paper sheet such as banknotes being counted due to the high speed of the counting operation or due to accuracy issues. For example, if a different type of note than the one to be counted or a counterfeit note is mixed in, these will be counted together with the genuine note, and therefore the paper sheet counting machine will not be able to handle it. As a result, it is necessary to visually check the counted paper sheets and eliminate different types of bills, and there is a problem in that the automation of the work by introducing the paper sheet counter cannot be fully realized. Therefore, by adding a bill type discrimination function to the above-mentioned paper sheet counting machine, it is possible to prevent erroneous counting caused by the presence of different types of tickets. As a known technique for determining the width of printed matter, for example, there is a "printed matter width detection device" described in Japanese Patent Application Laid-Open No. 1983-4562. An optical sensor is installed on both sides of the printed material to cross the light beam, and this optical sensor measures the width of the printed material based on the size of the area where the light is blocked as the paper sheet passes, and the obtained width data is obtained. The ticket type is determined from “Problems to be Solved by the Invention” However, the width detection device described above is accurate only when the width direction of the object to be detected (direction perpendicular to the direction of travel) and the arrangement direction of the optical sensors match. Since it is possible to perform a discrimination operation, if the object to be detected is sent obliquely, there is a risk that the width of the object will be mistakenly recognized and a malfunction will occur. This invention was made in consideration of these circumstances, and its purpose is to provide a counting machine that can reliably identify the mixture of different types of bills even when paper sheets are conveyed diagonally. It's about getting. "Means for Solving the Problems" In order to achieve the above object, the present invention separates stacked paper sheets one by one and transports them at predetermined intervals, and in the process of this transport, the number of paper sheets is reduced. In a paper sheet counter for counting, a plurality of optical sensors for width detection, each of which crosses a beam of light, are arranged in the width direction of the paper sheets perpendicular to the transport direction near both side edges of the paper sheets to be transported. optical sensors for detecting diagonal feed that intersect light beams on the paper sheets are provided at a plurality of locations spaced apart from each other in both the paper sheet width direction and the paper sheet transport direction; A bill type discrimination unit is provided which calculates the width dimension of paper sheets from the number of sheets with which the sensors are shielded, and the bill type discrimination unit includes a plurality of width detection optical sensors that are shielded by the paper sheets. a shielded number counting means for counting the number of shielded pieces; a time difference counting means for counting the difference in time when each of the plurality of diagonal feed detection optical sensors is switched from a non-shielded state to a shielded state; Correcting means for correcting the counting result of the shielding number counting means accordingly is provided, and the correcting means adds a correction value to the counting result of the shielding number counting means when the count value of the time difference counting means is large. It is designed to increase the size of . "Function" When the diagonal feed detection section detects the difference in time between the optical sensors for diagonal feed detection switching from the non-shielding state to the shielding state, if this time difference is large, it is added to the counting result of the shielded number counting means. Increase the correction value to correct the width dimension. "Embodiment" Hereinafter, an embodiment in which the present invention is applied to a friction type sheet counting machine will be described. (1) Outline of the Embodiment FIG. 1 shows the mechanical section 2 of the bill counting machine of this embodiment, and FIG. 2 shows the circuit section 3 of the bill counting machine of this embodiment. In FIGS. 1 and 2, the banknote counting machine of this embodiment consists of a mechanism section 2 and a circuit section 3. The mechanism section 2 consists of a paper feed mechanism 4, a separation mechanism 5, a conveyance mechanism 6, a reject mechanism 7, a collection vehicle 8, and a main body case 9 for housing each of these sections. When loose banknotes are placed on the paper feeding mechanism 4, these loose banknotes are sent one by one to a separation mechanism 5, where they are sequentially sent to a subsequent transport mechanism 6 at predetermined intervals. In addition to transporting banknotes, this transport mechanism 6 also
The sensor unit 10 is designed to detect various errors in the transported banknotes. If there is no error, the banknotes are sent to the stacking car 8 and then stacked in the stacking box 11.
On the other hand, when an error occurs, the transported banknotes are not sent to the stacking car 8 but are sent to the reject box 12 by the reject mechanism 7. The circuit section 3 includes a sensor section 10, a detection section 13, a detection output processing section 14, an amount calculation/display section 15, a reject drive section 16, and the like. and,
When the banknote is transported by the transport mechanism 6, the sensor section 10
generates various sensor outputs depending on the width of the banknote, etc.
Based on these sensor outputs, the detection unit 13 detects a ticket type discrimination signal JUD, a width abnormality signal WID, and an offset conveyance signal.
AFD etc. are starting to occur. When the mode switch 17 is operated to set the amount display mode, the amount calculation/display section 15 displays or prints the number and amount of each ticket type based on these output signals from the detection section 13. On the other hand, when in the different type ticket detection mode, the reject drive unit 16 drives the above-mentioned reject mechanism 7, thereby rejecting different types of tickets. (2) Configuration of mechanism section 2 Next, the configuration of each section will be explained. First, the mechanism section 2 will be explained. As described above, the mechanism section 2 in FIG. 1 is comprised of the paper feeding mechanism 4, the separating mechanism 5, the conveying mechanism 6, the reject mechanism 7, the stacking car 8, and the like. This paper feeding mechanism 4 consists of a paper feeding tray 18 and a kick-out roller 19. A through hole 20 is provided in the paper feed tray 18, and the kick-out roller 19 projects slightly from the lower side to the upper surface of the sheet feed tray 18 through the through hole 20. The kick-out roller 19 is eccentrically attached to a shaft rotating clockwise in FIG. 1, and its surface is made of rubber or the like having a large coefficient of friction and is formed into an uneven shape. When loose banknotes are placed on the paper feed tray 18, the banknotes are sent to the separating mechanism 5, which will be described below, while being regulated by a kick-out roller 19 and a regulating plate 21. The separation mechanism 5 includes a feed roller 22 and a pressure roller 2.
3. It consists of a first brake member 24 and a second brake member 25. The feed roller 22 is made of rubber or the like and is formed into an uneven shape, similar to the above-mentioned kick-out roller 19. In this separation mechanism 5, when about two or three bills are sent from the paper feed mechanism 4 at the same time, they are separated one by one and sent to the conveyance mechanism 6 one after another. The pressing roller 23 is rotatably supported by an arm 26, and the arm 26 is twisted counterclockwise in FIG. 1 by a coil spring or the like. In an emergency, this arm 26 can be moved away clockwise. The conveyance mechanism 6 includes a conveyance roller 27 and an acceleration roller 28.
and a guide 29, etc. One of the transport roller 27 and the acceleration roller 28 (the lower roller) is a drive roller, and the other is rotatably supported by the arm 30 by a shaft. This arm 30 can be rotated and retracted clockwise in the figure about the axis of the pressing roller 23 mentioned above. Therefore, when a bill conveyance jam occurs, the jammed bill can be removed by retracting this arm 30. The banknotes conveyed from the separation mechanism 5 are conveyed along the guide 29 to the conveyance roller 27, further conveyed to the acceleration roller 28, and further conveyed to the acceleration roller 2.
At this point, the intervals between each banknote are widened and the banknotes are sent to the stacking car 8. Further, the guide 29 is provided with a sensor section 10 at a position on its entrance side, and a reject fork 31 at a position on its exit side. These sensor parts 10
and the rigid fork 31 will be described later. The collection car 8 has a plurality of claws 32, and these claws 3
The conveyed banknotes are sandwiched between the stacking boxes 11 and 2, and then the conveyed banknotes are sequentially and regularly stacked in the stacking box 11. The Reject Mechanism 7 is a Reject Fork 3
1, a conveyance roller 33, a conveyance belt 34, etc. This rigid fork 31 is rotatably supported at a predetermined position, and is normally pressed counterclockwise in the figure by a coil spring or the like. When the fork solenoid 35 (see FIG. 2), which will be described later, is driven, the rigid fork 31 rotates clockwise from the angular position shown in FIG. 1 against the elastic force of a coil spring or the like. It's getting old. Note that in the state shown in FIG.
It is now being sent to (3) Configuration of sensor unit 10 and principle of ticket type discrimination Next, the sensor unit 10 will be explained, and then the principle of bill type discrimination will be explained. FIG. 3 shows the arrangement of various sensors in the sensor section 10, and FIG. 4 shows the left and right photodiode arrays 3 forming the ticket type discrimination sensor 36 (see FIG. 2).
7 and 38 are shown. In Figure 3,
Left and right photodiode arrays 37 and 38 of the sensor section 10, length detection sensor 39, optical double feed detection sensor 40, and diagonal feed detection sensors 41 and 4
2 and a timing generation sensor 43. These sensors 37 to 43 of the sensor section 10 are provided at the entrance side of the guide 29 as described above, and are arranged in the arrangement shown in FIG. 3. In addition, the left and right photodiode arrays 3
7 and 38 are arranged at both end positions of the guide 29,
As shown in FIG. 4, it consists of 16 photodiodes arranged in a direction (hereinafter referred to as the width direction of paper sheets) perpendicular to the banknote transport direction (indicated by arrows). In FIG. 2, each sensor output of the sensor section 10 described above is sent to the detection section 13, the timing pulse generation section 44, or the reject drive section 16. That is, the sensor output of the bill type discrimination sensor 36 is sent to the bill type discrimination section 45, and the sensor output is sent to the bill type discrimination section 45, and the sensor output is also sent to the diagonal feed detection sensor 41, 42, the length detection sensor 29, the double feed detection sensor 40, the timing generation sensor 43, and The respective sensor outputs of the reset sensor 46 are sent to a diagonal feed detection section 47, a stub/continued ticket detection section 48, an optical double feed detection section 49, a timing pulse generation section 44, and a reject fork drive control section 50. ing. The timing pulse generator 44 generates various timing pulses TP1, TP2, TP3, TP4, and TP5. That is, every time a banknote covers the timing generation sensor 43, the timing pulse generation section 44 sequentially generates timing pulses TP1 to TP1.
It is generating TP5. These timing pulses TP1 to TP5 are sent to various circuits. Next, the principle of ticket type discrimination in this embodiment will be explained. This banknote type determination is based on the width of the banknote (the fourth
(indicated by l in the figure) is detected. This width is the width of the left and right photodiode arrays 37,
The determination is made based on how many of the 38 photodiodes are hidden in the banknote. In this embodiment, by setting the spacing between individual photodiodes of the photodiode arrays 37 and 38 and the spacing between the photodiode arrays 37 and 38 to predetermined values, it is possible to produce 22 or 10,000 yen bills.
23 individual photodiodes are hidden inside the banknote. For example, when a 10,000 yen bill is conveyed as shown by the dashed-dotted line in FIG. A single photodiode is hidden in a banknote. Similarly, when the banknote is a 5,000 yen note,
20 or 21 individual photodiodes are hidden, and when a banknote is a 1,000 yen note or a 500 yen note, each photodiode is hidden.
18 or 19, 16 or 17 photodiodes are hidden. The outputs of the photodiode arrays 37 and 38 correspond to the width of the banknote as described above,
This output is sent to the bill type discrimination section 45 as a sensor output of the bill type discrimination sensor 36. Note that such bill type discrimination cannot accurately discriminate when a bill is fed diagonally. In addition, as shown by the two-dot chain line in FIG. 4, when the banknote is conveyed in a skewed manner and therefore exceeds the detection range of the photodiode arrays 37 and 38, the banknote may be a stub. , even when they are connected, accurate discrimination cannot be made. In this embodiment, such a situation is dealt with by correcting the discrimination or generating an error signal.
This point will be discussed later. (4) Configuration of the detection unit 13 Next, the detection unit 13 will be explained. In FIG. 2, the detection unit 13 includes the ticket type discrimination unit 4.
5, a diagonal feed detection section 47, a stub/continuous ticket detection section 48, and a double feed detection section 49.
The ticket type discrimination section 45 generates ticket type signals JUD1 to JUD4 based on the sensor output of the ticket type discrimination sensor 36 and timing pulses TP1 and TP5, and
At the timing of timing pulse TP1, the width abnormality signal WID in the longitudinal direction of the banknote and the offset conveyance signal are generated.
The AFD is detected and stored and reset at the timing of timing pulse TP5. The configuration of this ticket type discrimination section 45 will be explained in detail later in (8). The diagonal feed detection section 47 includes the diagonal feed detection sensor 4
Based on the outputs of the sensors 1 and 42, the time from when one of these sensors 41 and 42 is hidden to when both are hidden is detected, thereby detecting skew feeding. The diagonal feed detection section 47 performs the following three operations depending on the inclination of the transported bill. (a) When the inclination is small, so even if the visible length changes slightly according to the inclination, the bill type can be identified without making any corrections. In this case, the oblique feed detection unit 47 does not send any error signal. Does not occur. (b) When the inclination is a little large and accurate ticket type discrimination cannot be performed without correction In this case, a correction signal is sent from the skew feed detection section 47.
Comp is sent to the ticket type discrimination section 45 so that accurate compensation can be performed. This point will be discussed later. (c) When the tilt is too large and accurate bill type discrimination cannot be performed even after correction In this case, the tilt abnormal signal ASF is set at the timing of timing pulse TP1, and the OR circuit 5
1 to the latch timing control section 52 and gate control section 53 as an error signal ERR, and further sent to the reject drive section 16 via the OR circuit 54. This oblique abnormality signal ASF is reset at the timing of the timing pulse TP5. Note that, like the abnormal signals WID, AFD and the abnormal length bedding ASF, which will be described later, this error signal is sent to each section as an error signal ERR via the OR circuit 51. Next, the stub/continuous ticket detection section 48 receives the output from the length detection sensor 39 and the timing pulse.
Based on TP1 and TP5, the time when the sensor 39 is interrupted by the banknote is detected. Then, based on this detection, it is determined whether the length of the banknote is within a predetermined range or not, and if it is abnormal, a length abnormality signal LNG is output at the timing of timing pulse TP1, and is reset at the timing of timing pulse TP2. It is becoming more and more common. Further, the optical double feed detection section 49 receives the output from the double feed detection sensor 40 and the timing pulse.
Double feeding of banknotes is detected based on TP1 and TP2. That is, the timing pulse TP
1 timing pulse to detect the amount of transmitted light of the banknote at the position of the sensor 40, and when this amount of transmitted light is below a reference level, output a double feed signal DBL,
It is designed to be reset at the timing of timing pulse TP5. Further, the output of the reset sensor 46 is sent as a reset signal to the reject drive unit 16, and has the role of returning the reject fork 31 and releasing the lock of the fork 31 during the reset. (5) Configuration of detection output processing section 14 Next, the detection output processing section 14 will be explained. In FIG. 2, this detection output processing unit 14 includes a reference note type setting input unit 55, a reference note type setting unit 56,
It consists of a different type ticket detection section 57 and a latch timing control section 52. The reference note type setting input section 55 is for presetting the reference note type before counting, and setting input signals BSI1 to BSI4 are sent to the reference note type setting section. In addition, 1 of the banknotes to be counted
When the first bill is to be of the standard bill type, the latch signal TPL from the latch timing control section 52 is sent to the standard bill type setting section 56, so that one of the bill type signals JUD1 to JUD4 is latched. The latch timing control section 52 determines the first banknote that has been normally conveyed, and generates a latch signal TPL at the timing at which the banknote is set and stored as a standard banknote type. That is, this control unit 52 receives the counting start signal CST and receives the error signal ERR.
is not input, the latch signal TPL is output to the reference note type setting section by the first input timing pulse TP2. Therefore, if the standard bill type is set using the first timing pulse TP2 generated after the start of counting, even if the first bill has an abnormal width or slant, the bill type is different from the actual bill. (apparent ticket type) is not likely to be set as the standard ticket type. Therefore, there is no problem that a few mixed bills of different types are counted as normal bills, while most of the bills are rejected. The dissimilar ticket detection unit 57 receives discrimination signals JUD1 to JUD4,
Based on the reference bill type signals BST1 to BST4 and timing pulses TP3 and TP5, it is determined whether the transported bill is a different type of bill. When the transported banknote is a different type of note, the different type of note detection section 57 stores and outputs the different type of note signal DIF at the timing of the timing pulse TP3. This different type ticket signal DIF is reset at the timing of timing pulse TP5. This different ticket signal DIF is connected to the AND circuit 58 and
The signal is sent to the reject drive unit 16 via the OR circuit 54 and directly to the gate control unit 53. (6) Configuration of Reject Drive Unit 16 The Reject Drive Unit 16 consists of a Reject Fork Drive Control Unit 50, an AND circuit 59, and a flip-flop 60. The fork solenoid 35 is excited at the timing of the timing pulse TP5, except when a lock signal LOCK, which will be described below, is input. Therefore,
When the lock signal LOCK is not generated, the reject fork 31 (see FIG. 1) is pressed clockwise in FIG. The flip-flop 60 stores the error at the timing of the timing pulse TP4 when the error signal ERR or the dissimilar bill signal DIF is input, and sends a lock signal LOCK to the rigid fork drive control section 50. When the lock signal is generated, the drive control section 50 performs the following operations.
Timing pulse TP5 is disabled to prevent fork solenoid 35 from being excited. Therefore, at this time, the transported banknotes are rejected. Furthermore, the flip-flop 60 is reset by the reset signal RST and the lock signal
LOCK is now cleared. Further, the rigid fork drive control section 50 also controls the fork solenoid 3 in response to the reset signal RST.
5 is de-energized. (7) Configuration of Amount Calculation/Display Unit 15 The Amount Calculation/Display Unit 15 is composed of a gate control unit 53, a number counting unit 61, a calculation unit 62, an addition unit 63, a display unit 64, and a printing unit 65. The gate control unit 53 has a gate for each ticket type, and receives a discrimination signal.
The timing pulse TP3 is gated based on JUD1 to JUD4, mode signals TPM, CKM, error signal ERR, and dissimilar ticket signal DIF. In other words, the detection mode is set to the amount calculation mode,
Therefore, the mode signal TPM is transmitted to the gate control section 53.
, the gate control unit 53 blocks the gate of the timing pulse TP3 only when the error signal ERR is generated, and, on the other hand, controls the timing pulse through the gate of the determined denomination at other times. The pulse TP3 is sent to the sheet number counting section 61. On the other hand, the detection mode is set to different ticket detection mode, and therefore other mode signals
If CKM is input to the gate control unit 53, not only the error signal ERR but also the dissimilar ticket signal DIF
The gate of the timing pulse TP3 is also blocked when the denomination is occurring, and on the other hand, the timing pulse TP3 is sent to the number counting unit 61 through the gate of the determined denomination at other times. The pulse TP3 gated in this manner is sent to the sheet number counting section 61 as a counting pulse directly or via the OR circuit 66. As described above, the number counting section 61 counts the timing pulses TP3 gated for each ticket type from the gate control section 53 individually for each ticket type. Further, this sheet number counting section 61 includes an OR circuit 66
This is to count timing pulses TP3 from , that is, pulses corresponding to the total number of sheets. Various counting outputs of this sheet number counting section 61 are processed by a calculating section 62,
The information is sent to a display section 64 and a printing section 65. The display section 64 and printing section 65 display and print the number of bills for each ticket type and the total number of bills. The calculating section 62 calculates the amount of money for each ticket type based on the count output for each ticket type from the number counting section 61. The amount for each ticket type is also displayed and printed on the display section 64 and the printing section 65. Further, the addition unit 63 adds the amounts for each ticket type to calculate the total amount. This total amount is also displayed and printed on the display section 64 and the printing section 65. (8) Configuration of the ticket type discrimination section 45 Next, the bill type discrimination section 45 of the detection section 13 will be explained. FIG. 5 shows this bill type discrimination section 45. In FIG. 5, the bill type discrimination section 45 includes encoders 67, 68, an addition circuit 69, a decoder 70,
It consists of a width abnormality detection section 71, a width detection section 72, and the like. The encoder 67 is a 4-bit binary number that indicates how many individual photodiodes are hidden in the banknote based on the output of the left photodiode array 37.
The output of this 4-bit binary number is sent to the AND circuit 73 of the detection section 72 from the adder circuit 69 and one side. The other encoder 68 produces a 4-bit binary output for the photodiode array 38 on the right side, and this binary output is sent to the adder circuit 69 and the rest of the detection section 72 from one side to the other.
It is sent to the AND circuit 74. Adder circuit 69 is a 4-bit binary adder circuit, and is adapted to add the outputs of encoders 67 and 68. When the correction signal COMP is generated from the diagonal feed detection section 47, the addition circuit 69 outputs the addition result as is. In addition, a correction signal is sent from the diagonal feed detection section 47.
When COMP has not occurred, the adder circuit 69 further adds "+1" to the above-mentioned addition result. For example, as shown by the dashed line in FIG. 4, when both sides of the banknote cover up to L-10 and R-12, the calculation "10+12+1" is performed. The signal at the S5 terminal of the adder circuit 69 is sent to one input terminal of the OR circuit 76 of the width abnormality detection section 71 via the inverter 75. Also S4
The signal at the terminal is directly sent to the other input terminal of the OR circuit 76. Furthermore, the signal at the S4 terminal and the signals at each terminal S3, S2, and S1 are sent to a decoder 70. The decoder 70 is adapted to produce a decoded output corresponding to 16 to 23 individual photodiodes hidden in the banknote based on the 4-bit signal from the adder circuit 69. This decoded output is sent through an OR circuit 77 as discrimination signals JUD1 to JUD4 to a different type of ticket discrimination section 57 and the like. In addition, even when 0 to 7 photodiodes are hidden in a banknote, the above-mentioned method is applied.
The same decoding output as when 16 to 23 photodiodes are hidden is outputted from the decoder 70. However, in this case, since the signal at the terminal S5 of the adder circuit 69 is "L" (carry output is not generated), a width abnormality signal WID is generated from the width abnormality detection section 71, which will be described below, and the determination is invalid. This makes it possible to prevent misjudgment. Incidentally, the attached Tables 1 and 2 show which discrimination signal is generated when which individual photodiode among the photodiode arrays 37 and 38 is hidden.

【table】

[Table] Note that Table 1 shows the case where the banknotes were conveyed normally, and Table 2 shows the case where the banknotes were conveyed slightly tilted and the discrimination was corrected for this reason. Also, A corresponds to the discrimination of 500 yen notes, B, C,
D corresponds to the determination of a 1,000 yen note, 5,000 yen note, and 10,000 yen note, respectively, and E corresponds to an error. The width abnormality detection section 71 includes an OR circuit 76 and an AND circuit 7
8 and a flip-flop 79.
Then, the signal at the S5 terminal of the adder circuit 69 is "L".
(When the banknote is a stub, etc., only 0 to 15 photodiodes are hidden by this banknote) or when the signal at the S4 terminal is "H" (When the banknote is connected Therefore, if 24 or more photodiodes are hidden by banknotes), the flip-flop 79 is set at the timing of the timing pulse TP1. The Q output of flip-flop 79 is sent to OR circuit 51 (FIG. 2) as width abnormality signal WID. The detection section 72 has AND circuits 73, 74, 8
0, an OR circuit 81 and a flip-flop 82. When the banknote is on the left side of FIG. 4 and all the photodiodes of the photodiode array 37 are hidden by the banknote, an output is generated from the AND circuit 73. Similarly, when a banknote is placed on the right side of FIG. 4, an output is generated from the AND circuit 74. In the above case, the flip-flop 82 is set at the timing of the timing pulse TP1. The Q output of this flip-flop 82 is a signal AFD on one side.
The signal is sent to the OR circuit 51 (FIG. 2) as a signal. This completes the description of the configuration of the banknote counting machine of the embodiment. Next, the operation of the banknote counting machine of this embodiment will be explained for each operation mode. (1) Different type of ticket detection mode First, the operation of the different type of ticket detection mode will be explained. In FIGS. 1 and 2, the mode switch 17 is operated to generate the mode signal CKM. Next, the reference note type setting input unit 55 is operated to input the reference note type signal BSI to the reference note type setting unit 56 to set the reference note type. After that, the banknotes are placed on the paper feed table 18 and counting is started. Then, the banknotes are sent to the separating mechanism 5, where they are separated one by one. Then, the separated banknotes are transported to a later stage by the transport mechanism 6, and
Here, various detections are performed on this banknote.
Then, based on this detection, the banknotes are stacked in the stacking box 11, rejected, and the like. First, the bill type is determined for the transported bill, and a discrimination signal JUD is sent to the different type bill detection section 57 and the gate control section 53. On the other hand, if the banknotes are skewed, stubbed or stacked, double-fed, or excessively diagonally fed, these conditions will be detected and an error signal ERR will be sent to the reject drive unit. 16 and the gate control section 53. Therefore, the lock signal LOCK is sent from the flip-flop 60 of the reject drive unit 16 to the reject fork drive control unit 50, and as a result, even if the timing pulse TP5 is input, the reject fork drive control unit 50 will not operate the fork solenoid 3.
Do not energize step 5. Therefore, reject
The fork 31 remains pressed in the counterclockwise direction as shown in FIG. 2, and the banknotes with errors are sorted to the reject mechanism 7 side and sent to the reject box 12. In addition, since the error signal ERR is sent to the gate control unit 53, even if the banknote type is determined and the discrimination signal JUD is sent to the gate control unit 53, the timing pulse TP5 is sent to the number counting unit 61. Not entered. Therefore, the banknotes that have been rejected as described above are not counted. On the other hand, when the conveyed banknotes are different types of notes, the different types of notes detection unit 57 detects the discrimination signal JUD and the reference note type signal.
A dissimilar ticket signal DIF is sent to the reject drive section 16 and the gate control section 53 based on the BST. Therefore, the banknotes are rejected in the same way as when the error signal ERR is generated, and similarly, calculations such as the number of banknotes are not performed on the banknotes that have been rejected in this way. In addition, if the banknote is a valid banknote and there is no error in the conveyance of the banknote (including cases where the banknote is fed diagonally but can be corrected), the timing pulse TP3 counts the number of banknotes in accordance with the discrimination signal JUD. Part 61
sent to. Then, every time a valid bill is conveyed normally, a timing pulse is sent to the number counting section 61.
TP3 is sent, and the number of genuine notes, amount, etc. are displayed on display section 6.
4 and the printing section 65 for display and printing. In the above description, the reference note type is set using the reference note type setting input unit 55, but the note type of the first banknote to be counted is determined by the latch signal of the latch timing control unit 52. The standard ticket type setting unit 56 can be input based on the TPL. In this case, it is sufficient to output the mode signal CKM by operating the mode switch 17, and if the reference note type setting input section 55 is not installed, the reference note type will be automatically set. (2) Amount Calculation Mode Next, the amount calculation mode will be explained. In this case, the mode switch 17 is operated to generate the mode signal TPM. After that, the banknotes are placed on the paper feed table 18 and counting is started. Then, as in the case of the above-mentioned different type of bill detection mode, the banknotes are sent out one by one to the transport mechanism 6, where various detections are performed on the banknotes. By the way, in this amount calculation mode, even if the dissimilar bill signal DIF is input to one input terminal of the AND circuit 58, a "1" signal is not sent to the other input terminal, so that reject is performed when a dissimilar bill is detected. I've learned not to get caught. That is, no matter what type of bill the bill is, unless an error occurs in the conveyance of the banknote, the banknote is conveyed as is to the stacking box 11. In addition, in this amount calculation mode, the different ticket signal DIF
Timing pulse TP3 is sent to sheet number counting section 61 in response to determination signal JUD, regardless of the presence or absence of the determination signal JUD. Therefore, the number, amount, etc. of each ticket type are displayed and printed on the display section 64 and the printing section 65. This completes the explanation of the operation of the banknote counting machine of this embodiment. Next, the effects of this embodiment will be explained.
The effects of this embodiment are as follows. (1) It is possible to perform high-speed and highly accurate bill type discrimination with a simple configuration. (2) By operating the mode switch, it is possible to reject different types of tickets, and calculate and display the number and amount of tickets for each type of ticket. (3) When an error occurs in the conveyance of banknotes, the banknotes can be rejected to prevent erroneous discrimination. (4) When a banknote is fed slightly diagonally, a discrimination correction is performed to enable accurate discrimination. In the embodiment described above, when an error occurs or a different type of bill is conveyed, the banknote is rejected. However, the present invention is not subject to such restrictions, and the reject mechanism may be omitted as shown in FIG. Instead, counting can be stopped when an error occurs or when a different item is transported. To do this, in Figure 2
The output of the OR circuit 54 may be used to send a stop signal CSP to the feed/conveyance drive section 83 as shown by the broken line. This feed/conveyance drive unit 83 receives a counting start signal.
The CST transmits the drive of the motor, etc. through an electromagnetic clutch, timing belt, etc. to perform feeding drive, and the transmission of the motor drive is cut off by the counting stop signal CSP. In addition, stopping by counting the set number of bills, stopping when all loaded bills are counted, stopping when all loaded bills are counted, and manual stop signal using a stop button, etc.
Performed by CSP. "Effects of the Invention" As is clear from the above description, according to the present invention, optical sensors for width detection that intersect light beams are installed near both side edges of the paper sheet along the transport direction. For diagonal feed detection, a plurality of light beams are arranged side by side in the paper sheet width direction at right angles to the paper sheet, and light beams intersect the paper sheet at multiple locations spaced apart from each other in both the paper sheet width direction and the paper sheet transport direction. A shielding number counting means for counting the number of sheets that the plurality of width detection optical sensors are shielded by paper sheets, and a shielding number counting means for counting the number of sheets that are shielded by the plurality of paper sheets, and a shielding number counting means for counting the number of sheets that are shielded by the plurality of paper sheets, and a shielding number counting means for counting the number of sheets that are shielded by the plurality of paper sheets, and a shielding number counting means for counting the number of paper sheets that are shielded by the plurality of optical sensors for width detection, and a shielding number counting means for counting the number of paper sheets that are shielded by the plurality of optical sensors for detecting diagonal feed. The width dimension of the paper sheet is determined by a time difference counting means for counting the difference in time when the state is switched, and a correction means for correcting the counting result of the shielding number counting means according to the counted value of the time difference counting means. At the same time, when the count value of the time difference counting means is large, the correction means can make a correction so as to increase the correction value to be added to the counting result of the shielding number counting means, and therefore, Width dimension data when paper sheets are fed diagonally can be corrected to the correct value by simple addition processing, and bill type discrimination processing can be performed at high speed using a simple calculation mechanism. It has the effect of being able to do so.

[Brief explanation of the drawing]

All the drawings show a banknote counting machine according to an embodiment of the present invention, and FIG. 1 is a schematic diagram showing the mechanism section 2;
FIG. 2 is a block diagram showing the circuit section 3, FIG. 3 is a diagram showing the arrangement of the sensor section 10, FIG. 4 is a diagram showing the arrangement of photodiode arrays 37 and 38, and FIG.
This figure is a block diagram showing details of the bill type discriminating section 45 of FIG. 2, and FIG. 6 is a schematic diagram showing a mechanical section of a modified example. 3...Circuit section, 10...Sensor section, 13...Detection section, 6...Sensor for ticket type discrimination, 37, 38...
Photodiode array, 41, 42...Diagonal feed detection sensor, 44... Timing pulse generation section, 45... Bill type discrimination section.

Claims (1)

[Claims] 1 In a paper sheet counting machine that separates stacked sheets one by one and transports them at predetermined intervals, and counts the number of sheets during this transport process, A plurality of optical sensors for width detection are arranged in the width direction of the paper sheet perpendicular to the conveying direction, and the width detection optical sensors are arranged near both side edges so that the light beams intersect, respectively.
A plurality of optical sensors for detecting diagonal feed that cross the paper sheet are provided at a plurality of locations spaced apart from each other in both the paper sheet width direction and the paper sheet transport direction, and the width detection optical sensor is shielded. a bill type discrimination section that calculates the width dimension of paper sheets from the number of paper sheets, and the bill type discrimination section counts the number of the plurality of width detection optical sensors that are blocked by the paper sheets. a time difference counting means for counting the difference in time at which each of the plurality of optical sensors for detecting diagonal feed is switched from a non-shielding state to a shielding state; A correction means for correcting the count result of the number counting means is provided, and the correction means increases a correction value to be added to the count result of the shielded number counting means when the count value of the time difference counting means is large. A bill type discrimination device for a paper sheet counting machine, which is characterized by: