JPH0445023A - Paper sheet handling equipment - Google Patents

Abstract

PURPOSE:To prevent the double delivery and short feed of paper memory or the like after separation by providing a control means whose purpose is to control the force of paper sheets or their kind drawing out transport by means of a separation means on the basis of information from an inspection sensor, and a drive means whose purpose is to control separation means transport on the basis of information from the control means. CONSTITUTION:The transport condition of paper sheets or their kind B being intermittently separated and transported is inspected by means of sensors 15a, 15b. When paper sheets B intended for separation come to a position where they do not come into contact with a drawing out roller 3a, its motor 32 is stopped by a control portion 26 on the basis of the inspection signal. Next, the rotation drive of the roller 3a is made by means of the motor 32 which is controlled by the portion 26, so that paper sheets B being separated may be completely sent out of a separation portion 3 and then, the next B may be separated. As a result, short feeding whose transport cycle is short, or double delivery can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a banknote separating device having a function of preventing double feeding of banknotes occurring in a banknote separating section of an automatic cash handling device.

[Conventional technology]

As described in Japanese Unexamined Patent Application Publication No. 1-203129, the conventional technology uses a banknote dispensing mechanism to prevent short feed and double feed, which shorten the conveyance interval after separation, when the paper sheets are uniform in size. Mechanical dimension specifications were determined to prevent this from occurring.

[Problem to be solved by the invention]

The above-mentioned conventional technology does not consider the separation of paper sheets of different sizes, and there is a possibility that double feeding may occur if paper sheets with a small length in the transport direction are attempted to be separated. It gets expensive.

Furthermore, in FAX machines and the like, double feeds and short feeds are prevented by eliminating the conveying force on the feeding side after one separation and the leading edge of the filter paper sheet is detected, as is well known.

An object of the present invention is to provide a separating device that can prevent double feeding and short feeding even when paper sheets of different sizes are separated.

[Means to solve the problem]

In order to achieve the above objects, the present invention provides a means for detecting the state of paper sheets being separated, a feeding means for applying a feeding force to the paper sheets without contacting the accumulated paper sheets, and a feeding means for applying a feeding force to the paper sheets without contacting the accumulated paper sheets. a peeling means for applying a force to separate the paper sheets so that two or more of the paper sheets are not fed simultaneously; and a driving means for driving the feeding means and the feeding means. The separation means includes a control means for controlling the conveyance force by the drive means based on the information from the detection means to prevent double feeding and short feed of separated filter paper sheets. It is something.

[Effect]

The paper sheet detection means detects the passing timing of the leading edge of the separated paper sheet, and the control means detects the passing timing of the leading edge of the separated paper sheet, and the control means detects the passing timing of the leading edge of the separated paper sheet, and the control means detects the passing timing of the leading edge of the paper sheet when the paper sheet leaves the feeding means and contacts the next sheet. The conveyance force by this driving means is controlled so as not to apply a conveyance force to the conveyance force.

On the other hand, the driving means controls the conveying force of the feeding means based on instructions from the control means. Further, the feeding means is driven after the paper products to be fed out are fed out from the separating section, and is controlled so as to apply a conveying force to the next paper sheet.

As a result, the conveying force from the feeding roller is removed from the banknotes that are about to be separated next, and the conveying force by the feeding means is applied to the next sheet after this sheet is completely fed out from the separating section. This makes it possible to prevent short feeds with short conveyance cycles or double feeds.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. FIG. 1 shows a schematic diagram of a device that handles banknotes, which are one type of paper sheet. Banknote handling device ll is 1
A deposit/withdrawal port 2 for depositing and withdrawing banknotes into the device, a separating section 3 for separating deposited banknotes into individual sheets, and a separating section 3 for determining the authenticity of the separated banknotes and determining whether the banknotes are severely damaged or damaged. a discriminating section 4, an unfit bill box 5 for storing unfit bills, a stacking section 7 for returning bills determined as counterfeit bills by authenticity discrimination to the deposit/withdrawal slot 2; An extrusion section 8 for pushing out banknotes to the deposit/withdrawal port 2; a primary stacker 6 for temporarily storing banknotes deemed normal by the discrimination section 4;
1,000 yen recycling box 1o and 10,000 yen recycling box 11 for separately storing 1,000 yen and 10,000 yen.
, a safe 12 for replenishing and collecting banknotes into the 1,000-yen recycling box 10 and the 10,000-yen recycling box 11, and a banknote for reversing the banknotes that have been determined to be genuine by the above-mentioned identification unit 4 so that the front and back sides are aligned. A reversing mechanism 9 is provided. -Next stacker 6, 1,000 yen recycling box 10. Both the 10,000 yen recycling box 11 and the safe 12 include a stacking section 7 for stacking banknotes sent one by one and a separation section for separating and taking out the stacked banknotes one by one again. 3. Further, a pair of belts 13b running opposite to each other are arranged between each element such as the deposit slot 2 and the next stacker 6, and the banknotes are conveyed between each element by sandwiching the banknotes between the belts. .

FIGS. 2 and 3 show the primary stacker 6, the 1,000 yen recycling box 10. FIG. 2 is an explanatory diagram of the operation of the separation section 3 and the accumulation section 7 in the 10,000 yen recycling box 11 and the safe 12. FIG. 2 shows the operation of the separation section 3, and FIG.
This is an easy-to-understand outline of each individual operation.

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

Denoted at 3a is a feed-out roller for feeding forward the topmost banknote A of the stacked banknotes, which is arranged at symmetrical positions on the left and right, and whose surface is made of a rubber material and rotates while being pressed against the stacked banknotes. The driving source for this rotation is the pulse motor 3.
I got it from 2.

Reference numeral 3c denotes a foot roller for separating the banknotes A fed out by the feeding roller 3a one by one and feeding them to the primary conveying means 13. The foot rollers 3c are arranged at symmetrical positions on the left and right, and only one motor is operated. Although not shown, it is driven by the required number of rotations by pulse motors placed on the left and right sides, respectively.

Reference numeral 3b denotes a separating roller for separating two or more bills fed into one sheet at a time, and is fixed to a rubber roller having a high coefficient of friction with the banknotes.

The separation roller 3b is disposed opposite to the feed roller 3c at a position offset from the feed roller 3c in the axial direction, and is intertwined with each other in the radial direction.

15 is a first sensor for detecting the timing of passage of banknotes, and the same sensors are arranged at symmetrical positions on the left and right.
15a is a light emitting sensor, and 15b is a light receiving sensor. These sensors 15a and 15b are placed immediately after the feed roller 3c on both sides of the surface through which banknotes A pass, and are placed so as to output an output when one banknote A passes.

Reference numeral 13b denotes belts for holding and conveying banknotes A, and a pair of belts are disposed facing each other.

13a is a guide roller for running the belt 1'3b. Although not shown, the belt 13b is driven to run by another drive roller. The conveyance speed of this belt 13b is twice faster than the peripheral speed of the feed roller 3c.

The push plate 16 is engaged with a ball screw 17 and moves up and down as the ball screw 17 rotates.

The ball screw 17 is rotated by power from a motor 19 via gears 18a and 18b. In the banknote separation section, a push plate 16 moves the stacked banknotes A up and down.

It is brought into contact with the feeding roller 3a. In this case, confirmation of the contact state between the feeding roller 3a and the stacked banknotes is performed using the feeding roller 3a.
This is done by a detection means 32 that detects the position of.

Next, a control system for the motors that drive the two sets of left and right independent feed rollers 3c and delivery rollers 3a will be explained using FIG. 4.

As shown in FIG. 4, the control circuits for the motors 29 and 32 include a first interface 23 for taking in the output of the sensor 15, a calculation section 24 for performing calculations, and a control target based on the calculation results. It is composed of a control table 25 for obtaining target values to be given to the motors 29 and 32, a calculation unit 24 for controlling the motor 29 based on the target values, and a second interface 27 for transmitting control signals to the motor 29. There is.

That is, the two left and right detection sensors 15 detect the counting timing of the bills separated by one, and input this into the first interface 23, and the calculation unit 24 calculates the difference in the passage time of the bills between the left and right detection sensors. Then, depending on the magnitude of this transit time difference, the rotational speed of the motor 24 is specified based on a predetermined control table and is given to the control section 26. That is, the skew amount ΔQ of the banknote is calculated from the time difference between the left and right passage timings, and the speed of the drive motor on the side where the banknote is leading is set as shown below so that the skew amount is below a certain value. Decelerates for a certain period of time. That is, motor speed at the time of detection by the sensor 15: ■ Shift time between left and right passing timing = Δ is set as deceleration time: T.

On the other hand, the control unit 26 applies a control current to the motors 29 and 32 via the second interface 27 to control the rotational speeds of the motors 29 and 32. Moreover, as shown in FIG. 6, when the banknotes to be separated are
The motor 32 is controlled so that the feeding roller stops when the motor 32 reaches a position where it does not come into contact with a, and the next sheet is removed after the sheet being separated is completely fed out from the separating section. The configuration includes a control section 26 that operates to rotate the feed roller 3a after that so that the rollers 3a are separated.

That is, at the start of separating one banknote, the peripheral speeds of the feed roller 3a and the feed roller 3c are driven at approximately the same speed VC. A sensor 15 detects the skewed state of the banknotes being separated, and the motor on the preceding side of the skewed banknotes is decelerated to correct the skew.

Thereafter, after a predetermined period of time has elapsed, the feeding roller 35a is stopped before the banknote next to the banknote being separated is brought into contact with the feeding roller 35a and fed out. Thereafter, after a predetermined period of time has elapsed, the first banknote is separated again by repeating the above operation so that the next paper sheet is fed out after the paper sheet being separated is completely fed out from the separating section. do.

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

The stack guide 20 is rotatably supported around the axis of the roller 21 as the center of rotation. The conveyance bell 1-13b is wound around a roller 21 and is driven by a drive means (not shown). The sensor 22 is a second optical sensor and detects contact with the stacked banknotes.

When stacking banknotes, the pusher plate 16 moves downward so that the stacked banknotes are lowered by the pusher plate 16 so that the optical path of the upper end detection sensor 22 of the stacked banknotes is not blocked by the stacked banknotes, and a space is always formed above.

On the other hand, the banknotes sent by the conveyor belt 1.3b are
The stack guide 20 guides the stacking process.

The above configuration enables the following operations.

In the separating section 3, the stacked banknotes A are pressed against the feed-out roller 3a by a push plate, and in this state, the feed-out roller 3a rotates to feed the banknote B between the feed roller 3b and the separation roller 3c, where the feed roller 3b By rotating, bills can be separated one by one and delivered to the next conveyance path. In this case, the conveyance posture of the banknote B can be controlled by the sensor 15 provided immediately after leaving the first separation section 3 before the banknote B is sent out to the next conveyance path 13 . Further, since only the banknotes that should originally be fed out are fed out, double feeding or short feeding can be prevented.

On the other hand, in the banknote B stacking section 7, the banknotes B conveyed one by one are guided by the stack guide 20, and the denomination box 1
0, 11, or safe 12 can be deposited in good alignment.

The above operations produce the following effects.

The banknotes separated by the separator 3 are always conveyed in an oblique posture with a certain amount or less, and short feeds and double feeds do not occur, so that the banknote discrimination operation in the discrimination unit 4 located after the separator 3 is normal. The banknote stacking section 7 can also stack the banknotes in an orderly manner without interfering with each other.

In addition, since the conveyance direction switching unit 31 for banknotes B guides subsequent banknotes in a different direction after completing the guidance of the preceding banknotes, when switching the gate 30, the gate 30 and the banknote B
can be guided without interference.

Further, the same effect can be obtained by controlling the driving speed of the motor for correcting the skew of the banknotes using a table set in advance according to the amount of delay in the passage timing of the banknotes.

Although not shown, the power of the motor 29 is transferred to the feed roller 3 through a mechanical clutch instead of the motor 32 described above.
a, and while paper sheets are being separated, the feed roller is driven at the same speed as the feed roller, and in the same manner as described above, when the banknotes being separated are separated from the feed roller, the mechanical clutch is activated to stop driving the feed roller. A similar effect can also be obtained by

〔Effect of the invention〕

According to the present invention, double feeding and short feeding of banknotes after separation can be prevented, so banknotes can be processed without errors in the post-processing units for these paper sheets, such as the identification, gate actuator, and stacking unit. I can do it.

[Brief explanation of the drawing]

FIG. 1 is a system diagram of an embodiment of the present invention, FIG. 2 is an explanatory diagram of the operation of the separating section in FIG. 1, FIG. 3 is an explanatory diagram of the operation of the integrating section in FIG. 1, and FIG. FIG. 6 is a block diagram of the control system according to the present invention, and FIG. 5 is an explanatory diagram showing the configuration of the separating section. 3... Separation section, 7. Accumulation section, 15. First sensor,
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Claims (1)

[Scope of Claims] 1. A paper sheet handling device comprising a separating means for separating stored paper sheets one by one, and a conveying means for conveying the separated paper sheets. A detection sensor for detecting the conveyance state of the paper sheets that are intermittently separated and conveyed; and controlling a force for feeding and conveying the paper sheets by the separation means based on information from the detection sensor. A paper sheet handling device comprising: a control means for controlling the separation means; and a drive means for controlling the conveyance of the separation means based on information from the control means.