JPH02211595A - Carrying control method for discriminating machine for paper sheet or the like - Google Patents

Abstract

PURPOSE:To temporarily hold a present position at the time when a detection by a position detection sensor is executed before carrying is ended, and to secure a correct stop position by carrying an object to be detected by a carrying distance extending from a draw-out preventive lever to a position detection sensor through a carrying mechanism and a tachogenerator in a detection of a lever detection sensor. CONSTITUTION:When an object to be detected 01 is passing through in the X direction under a draw-out preventive lever 12 of a carrying control system, a lever operation detection sensor 06 becomes ON, and it becomes OFF, when the passing is ended and the object passes through a rear end BE. Subsequently, when the detection object 01 decided to be true by a discriminating part 02 is carried to a temporary holding part 01, a control part 03 detects OFF of the operation detection sensor 06, and starts counting of an output pulse of a tachogenerator TG. Next, the detection object 01 is carried until counting of the number of pulses of the generator corresponding to a distance extending from the preventive lever 12 to a position detection sensor 07 being a known carrying distance is ended, and whether the sensor 07 becomes OFF by a true step or not is discriminated.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a method for controlling the conveyance of filtered paper sheets in an identification machine for paper sheets such as banknotes and beer tickets, and in particular, a method for controlling the conveyance of paper sheets stored in a temporary storage section so that the paper sheets can be stored in a storage section without clogging. Regarding control method. Note that in the following figures, the same reference numerals indicate the same or corresponding parts.

[Conventional technology]

FIG. 3 is a block diagram showing an example of the configuration of a banknote validating machine as a paper sheet validating machine according to the present invention and a conventional paper sheet validating machine. In the figure, 01 is an object to be detected such as a banknote, and IL is an inlet for the object. Reference numeral 11 denotes a transport mechanism for the object to be detected 01, which includes a transport belt, a pulley for driving this belt, and the like. 02 is an identification unit as a sensor that identifies the authenticity of the detected object 01;
03 is a control unit that controls the entire bill validator. T
G is a tacho generator that is linked to a pulley or a drive motor (not shown) of the transport mechanism 1, and this tacho generator generates a predetermined number of pulses for each predetermined transport movement amount of the transport mechanism 11 (in this example, the object to be detected 01 outputs 39 pulses for every 10 mm of movement. 05 is a waveform shaping unit that shapes the output pulse waveform of the tacho generator TG into a rectangular wave pulse; 07 (07A, 0
7B) is a position detection sensor that detects passage of the rear end (end in the X1 direction) of the detected object 01 and turns off.
This is a sensor that detects that the paper has been transported to the temporary storage section 09. 09 is a temporary holding part as a place to temporarily hold the detected object 01 that has been identified as true, and 08 is a place where the detected part 01 held in the temporary holding part 09 is stored based on a storing command given from the outside. storage unit as, 1O (IOA, l0
B) is a return mechanism that returns the stored or reserved object 01 based on a return command given from the outside. Reference numeral 12 denotes a pull-out prevention lever that prevents the detected object 01 held in the temporary holding section 09 from being pulled out from the input port IL side, and this lever 12 prevents the detected object O1 from being pulled out from the input port IL side. When transported, it moves easily and there are no objects to be detected.
However, when an attempt is made to pull out the detected object 01 from the temporary holding section 09 in the direction of the force direction of the input port IL force, the lever 12 gets caught on the rear end of the detected object 01, preventing its movement. This prevents withdrawal. Further, 06 is a lever operation detection sensor for detecting the operation of the pull-out prevention lever 12. In addition, when returning a change bill or the like from the temporary holding section 09 or the storage section 08, the control section 03 operates the withdrawal prevention lever 12 to free the conveyance path for the detected object 01 (bill). Returns are made via the return mechanism IO. Next, the outline of the operation shown in FIG. 3 will be described. When the object 01 to be detected is thrown into the input port IL, the control unit 03 transports the object 01 to be detected in the X direction via the transport mechanism 11 and transfers the object 01 to the identification unit 02.
The authenticity of the object to be detected 01 is identified through the . If the detected object 01 is identified as false here, the control unit 03
is returned to the input port rL side (X1 direction), but if it is determined to be true, the detection object 01 continues to be transported in the X direction and is transported to the temporary holding section 09. When the detected object 01 reaches the temporary storage section 09, the control section 03 detects passage of the rear end of the detected object 01 via the position detection sensor 07, and stores the detected object 01.
Stop and hold here. Next, upon receiving a storage command (collection command) from a main control unit of a vending machine (not shown), the control unit 03 stores the temporarily reserved object 01 into the storage unit 08 . On the other hand, upon receiving a return command from the main control section, the control section 03 operates the withdrawal prevention lever as described above to return the temporarily held object O1 to the input port IL via the return mechanism 10.

[Problem to be solved by the invention]

As mentioned above, in the conventional banknote validating machine, the detected object 01 conveyed to the temporary storage section 09 is detected by the position detection sensor 07 (07A, 07B) of the temporary storage section 09 at 0FF(
(passage detection). FIG. 4 is a diagram illustrating variations in the position of the detected object 01 during this stop, and is a plan view of the detected object 01 in the temporary storage section 09 as seen from above in FIG. 3. In this case, in order to avoid interference with the position of the return mechanism 10A, the position detection sensor 07 cannot be provided at the center of the conveyance path of the detected object 01, but is provided at the end of the conveyance path. Here, if the detected object 01 (OIA) has a normal rear end BE, it is correctly stopped at the temporary holding section 09 as shown in FIG. 4(a). However, if the detected object 01 (OIB) has an abnormality at the rear end BE (for example, a corner is bent or torn), the detected object The rear end BE of the object to be detected stops. After that, when receiving a collection command from the main control unit of the vending machine, the control unit 03 transports the detected object 01 a certain distance from the stop position of the temporary storage unit 09 to the storage unit 08 side, and then transfers it to the storage unit 08. Store it. FIG. 5 is a diagram showing a state in which the detected object 01 is stored in the storage section 08, and corresponds to a partially enlarged sectional view of FIG. 3. As shown in FIG. 5, a normal detected object 01A is normally stored in the storage section 08, but a detected object 01B with an abnormal rear end remains in the temporary storage section 09 with its rear end BE. There is a problem in that when the object 01 is stored in the storage section 08 and the next object 01 to be detected is placed therein, the object gets clogged. To prevent this problem, for example, a method of arranging a plurality of position detection sensors in a line along the trailing edge of the object to be detected at the stop position of the object to be detected in the temporary storage section 09 can be considered, but this method is difficult due to the mechanism. This was difficult to realize due to constraints and increased costs. Therefore, in the present invention, in addition to the detection signal of the position detection sensor 07 of the temporary holding part, the rear end of the detected object 01 is detected in the temporary holding part 09.
Another position detection sensor detects when the object has reached a predetermined transport position before stopping at the position, and the detection position of this rear end in the direction orthogonal to the transport direction of the object is detected by the position detection sensor 07. By providing a conveyance control method for a paper sheet discriminator that uses a detection signal from a position detection sensor (lever motion detection sensor 06 in this example), which is different from the position, and a signal from a tacho generator TG. The objective is to solve the above problem.

[Means to solve the problem]

In order to solve the above-mentioned problems, the method of the present invention temporarily holds the paper sheets (detected object 01, etc.) that have been identified as genuine (via the identification unit 02, etc.) via the transport means (*transport mechanism 11, etc.). Paper sheets that are transported to a storage section (such as 09), stopped, and held, and then stored (to storage section 08, etc.) or returned (to input slot IL, etc.) based on a storage or return command. The identification device is a discriminator that detects the rear end (
BE, etc.)); and a means for detecting the position of the trailing edge of the paper sheet that has been conveyed to a predetermined position on the way to the stop position. and a second detection in which the detection position of the trailing edge of the paper sheet in a direction perpendicular to the conveying direction of the paper sheet is different from the detection position of the trailing edge of the paper sheet detected by the first detection means. means (lever detection sensor 06, etc.); and conveyance distance detection means (tachogenerator TG, control unit 03, etc.) for detecting the conveyance distance of paper sheets by the conveyance means.
In the paper sheet identification machine, after detection by the second detection means, the paper sheet is transferred from the second detection means to the first detection means via the conveyance means and the conveyance distance detection means. The transport path 1idf (TG constant pulse transport distance S, etc.) leading to the detection means is transported, and before finishing this transport, the first
When the detection means detects the paper sheet, the current conveyance position of the paper sheet is regarded as the stop position of the temporary holding section, and when the detection means does not detect it, this detection is performed further. The position at which the paper sheet has been conveyed through the conveyance means is regarded as the stop position of the temporary holding section.

[For use]

Since the distance in the transport direction between the position detection sensor (second detection means) located on the input port side of the temporary storage section and the position detection sensor (first detection means) of the temporary storage section is known, the second detection At the same time as the means F (passage detection), the tacho generator (conveyance distance detection means) that detects the moving amount of the paper sheet starts counting, and the count value of the tacho generator is used to detect the first
If the first detection means is not turned off, the transportation is continued further, and the first detection means is not turned off.
The conveyance is stopped by detecting the OFF state of the detection means to ensure the correct stopping position.

【Example】

The present invention will be described in detail below with reference to FIGS. 1 to 3. FIG. 1 is a diagram illustrating the principle of the present invention, and is a plan view similar to FIG. 4. Further, FIG. 2 is a flowchart showing the operation of the control section 03 of FIG. 3 in the present invention. In the present invention, the detection signal of the lever operation detection sensor 06 is used in order to correctly convey the detected object 01 to the temporary storage section 09 even if the rear end BE is bent. That is, detected object 01
The lever operation detection sensor 06 is ON when the lever is passing under the pull-out prevention lever 12 in the X direction, but it is configured to be OFF when this passage ends (that is, when the rear end BE passes). ing. Next, the operations in FIGS. 1 and 3 will be described using FIG. 2. The detected object 01 determined to be true by the identification unit 02 as described above is transported to the temporary holding unit 09. At this time, the control unit 03 turns off the lever operation detection sensor 06, that is, the object to be detected is 0.
When it is detected that the rear end BE of 1 has passed under the pull-out prevention lever 12 (step 101), counting of output pulses of the tachogenerator TG is started (step 102).
. Then, in step 103, the object to be detected O1 is transported until the number of pulses of the tachogenerator TG (217 pulses in this case) corresponding to the distance from the pull-out prevention lever 12 to the position detection sensor 07 as a known transport distance is counted.
), the position detection sensor 07 is turned off in the next step 104.
(ie, whether the rear end BE of the detected object 01 has passed). Here, if sensor 07 is OFF (branch Y), the conveyance is immediately stopped (step 105), but if sensor 07 is not OFF (branch N), sensor 07
The conveyance of the object to be detected 01 is continued until F reaches F, and then the conveyance is stopped. In this way, among the positions of the rear end BH of the detected object 01,
Detection position of pull-out prevention lever 12 or position detection sensor 0
If any of the detection positions 7 is normal, the detected object 01 will be correctly transported to the stop position of the temporary holding section 09. This principle is shown in FIG. In the figure, S is the distance from the extraction lever 12 to the position detection sensor 07, and the detected object 0
After the passage of the rear end BE is detected by the lever operation detection sensor 06, the tachometer 1 is transported for at least this distance of 8 minutes by counting a predetermined pulse (217 pulses in this case) of the tacho generator TG. Therefore, according to the present invention, even a detected object Of having an abnormality in the rear BE can be stopped at the same temporary holding position as a normal detected object. In addition, there is no bend at the rear end, and a part near the rear end of the object to be detected is thin, like the blind mark on banknotes, and the light emitted from the position detection sensor 07 passes through this thin part, making it easy to mistake it for the rear end. It can be stopped correctly even in such cases.

【Effect of the invention】

According to the present invention, after detection by the lever detection sensor 06,
When the detected object 01 is transported by the transport distance S from the pull-out prevention lever 12 to the position detection sensor 07 via the transport mechanism 11 and the tacho generator TG, and the position detection sensor 07 detects the detection before the transport is finished. considers the current conveyance position of the detected object 01 as the stop position of the temporary holding section 09, and on the other hand, when this detection is not performed, the detected object 01 is kept in the conveyance mechanism 11 until this detection is further performed. Since the position at which the detected object 01 (banknote) is transported through the intermediate holding unit 09 is regarded as the stopping position of the temporary holding unit 09, a stable stopping position of the detected object 01 (banknote) in the temporary holding unit 09 can be ensured. Therefore, it is possible to prevent the trouble of not being able to accept the next banknote.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the principle of the present invention, Fig. 2 is a flowchart showing the control operation of the present invention, Fig. 3 is a block diagram showing a configuration example of the present invention and a conventional bill validator, and Fig. 4 is a temporary hold. FIG. 5 is an explanatory diagram of variations in bill stopping positions in the storage section, and FIG. 5 is an explanatory diagram of variations in bill storage states in the storage section. ■L: Inlet, 01 (OIA, 0IB): Object to be detected, 02: Identification section, 03: Control section, TG: Tacho generator, 05: Waveform shaping section, 06: Lever operation detection sensor, 07: (07A, 07B): Position detection sensor, 0
8: Storage section, 09 d Temporary storage section, 10 (IOA, l0
B): Return mechanism, 11: Conveyance mechanism, 12: Pull-out prevention lever, X, Xl: VA feeding direction, BE: Rear end, S
:TG constant pulse minute diagram diagram

Claims (1)

[Scope of Claims] 1) Paper sheets identified as genuine are conveyed to a temporary holding section via a conveyance means, stopped and held, and then the held paper sheets are stored or returned based on a storage or return command. A paper sheet identification device that detects the position of a trailing edge of a paper sheet conveyed to a stop position of the temporary holding section, and a first detection means for detecting the position of a trailing edge of a paper sheet conveyed to a stop position of the temporary holding section; A means for detecting the position of a trailing edge of a conveyed paper sheet, wherein the detection position of the trailing edge in a direction perpendicular to the conveying direction of the sheet is detected by the first detection means. A paper sheet discriminator comprising: a second detection means having a position different from the rear end detection position; and a conveyance distance detection means for detecting a conveyance distance of the paper sheet by the conveyance means, After the detection by the second detection means, the paper sheet is conveyed by the conveyance distance from the second detection means to the first detection means via the conveyance means and the conveyance distance detection means. If the first detection means detects the paper sheet before the paper is finished, the current conveyance position of the paper sheet is considered to be the stop position of the temporary holding section; on the other hand, if the detection is not carried out, Furthermore, until this detection is performed, the position at which the paper sheet is transported via the transport means is regarded as the stop position of the temporary holding section.