JPH054734A - Initial delivery pressure controller for paper sheets - Google Patents

Abstract

(57) [Abstract] [Purpose] When feeding the first sheet of paper, by reducing the pressing force applied to this first sheet of paper, it is possible to obtain a proper quality regardless of the paper quality of the paper. The point that the first pressing force can be stably fed out by controlling and controlling the initial pressing force. [Structure] A feed roller that feeds the paper sheet by pressingly contacting the feeding side of the paper sheet stored in the paper sheet storage unit, and the pressing force of the feed roller based on the detection data at the time of feeding the paper sheet. A pressing device for adjusting a pressing force, and a paper sheet feeding device having a one-sheet feeding restricting portion for controlling one feeding of the fed paper sheet, wherein a plurality of the paper sheets are continuously fed. At the start of feeding out, the pressing force of the feeding roller is reduced from a preset normal pressing force, and after the first one sheet is fed out, the sheet is provided with an initial feeding pressure control means for allowing the return to the normal pressing force. It is characterized in that it is an initial feeding pressure control device.

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 specifically, to improve initial feeding performance of paper sheets. The present invention relates to an initial feeding pressure control device for paper sheets.

[0002]

2. Description of the Related Art Generally, a paper sheet feeding device of this type includes a feed roller for feeding a paper sheet by pressingly contacting a feeding side of the paper sheet stored in a paper sheet storage section, and a feed roller therefor. The pressing force adjustment mechanism that adjusts the pressing force of the sheet feeding device, the sheet feeding control unit that regulates the feeding of one sheet of paper that has been fed out, and the facing gap of the sheet feeding control unit within the set sheet feeding range. With a gap adjusting mechanism for adjusting, when the paper sheet is fed out, the pressure is adjusted by the pressing force adjusting mechanism based on the feeding detection data, and the gap is adjusted by the gap adjusting mechanism at the subsequent stage, and the skew, continuous feeding, emptying is performed. Stable feeding is performed without feeding defects such as feeding. In this case, for example, old circulating banknotes having a weakened waist, moistened banknotes wet with rain, etc., or foreign banknotes having a weak waist, when fed out from the paper sheet storage part, are fed from the feed roller. The leaves tend to bend at the position of the single-sheet-feeding restricting portion, which causes buckling and paper jam. As a solution to this, it is known that there is a paper quality tendency that the weakness of the paper sheet is proportional to the feeding timing speed, and the feeding timing degree of the paper sheet is detected from this paper quality tendency, and the feeding timing is As early as possible, it means that the stiffness of the paper sheet is weak. At that time, the pressing force of the feed roller is reduced so that the feeding force is weak according to the paper quality. No. 308392 is provided.

[0003]

However, the adjustment of the pressing force of the feed roller is effective for the feeding of the second and subsequent sheets, which can accurately detect the feeding timing, and is effective for one sheet. Since the delivery timing of the first paper sheet delivered to the eye cannot be detected, there is a problem that a delivery failure is likely to occur when the first sheet is delivered. Therefore, according to the present invention, when the first sheet of the first sheet is fed out, the pressing force for the first sheet of the first sheet is reduced, so that an appropriate initial pressing force is obtained regardless of the paper quality state of the sheet. An object of the present invention is to provide an initial feeding pressure control device for a paper sheet that can be controlled and managed to stably feed the first paper sheet.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a feed roller for feeding a paper sheet in press contact with a feeding side of the paper sheet stored in a paper sheet storage section, and a pressing force of the feed roller. A paper sheet feeding device comprising a pressing force adjusting means for adjusting based on detection data at the time of feeding a leaf, and a one-sheet feeding restricting unit for regulating one sheet of the fed paper sheet, wherein: At the start of feeding out a plurality of sheets of paper continuously, an initial feeding is performed in which the pressing force of the feed roller is reduced from a preset regular pressing force, and after the first one sheet is fed out, it is allowed to return to the regular pressing force. It is characterized in that it is an initial feeding pressure control device for paper sheets, which is provided with a pressure control means.

[0005]

According to the present invention, when the feeding of a plurality of sheets of paper is continuously started, the initial feeding pressure control means reduces the pressing force of the feed roller from a preset regular pressing force, The first roller is fed out with the pressure-reduced feed roller, and after the first roller is fed out, the feed roller is allowed to return to a normal pressing force and the second and subsequent sheets are pressed and fed.

[0006]

As described above, since the feed roller is fed at a pressure lower than the normal pressing force for the first sheet at the time of feeding the paper sheet, it is suitable for the paper sheet having a weak stiffness. It becomes the feeding pressure, and even if this first sheet of paper is weak, it can be stably fed out, and the buckling and paper jam at the passage position of the one-sheet feed-out regulation part are eliminated in advance. It can be fed out.
Then, after feeding the first sheet, in order to allow the feed roller to return to the normal pressing force, the pressing force adjusting means is pressed and adjusted for the second and subsequent sheets based on the detection data, It is possible to perform stable pressing control as usual.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 and 2 show an initial payout pressure control device for bills, and the initial payout pressure control device 11 for bills is a left and right initial payout pressure control device 11 arranged along a payout path 14 for bills 13 fed from a stacker 12. Rollers R1 and R2,
Left and right feed rollers R3, R4, left and right gate rollers R5, R6, and left and right feeding detection sensors S1, S2
, A bill upper limit detection switch S3, a timing detection sensor S4, left and right pressing force adjusting mechanisms 15 and 16, and left and right gap adjusting mechanisms 22 and 23.

The above-mentioned stacker 12 is a bill urging motor M.
The banknote pressing plate 17 that moves up and down by 1 presses the stacked banknotes 13 upward from below, and detects the upper limit position suitable for feeding the banknotes 13 at the upwardly opposed position where the pressing is pressed. The upper limit detection switch S3 and the left and right divided initial feeding rollers R1 and R2 are provided, and the above-mentioned bill 13 is pressed and received by both of these initial feeding rollers R1 and R2. Topmost banknote 13
However, the rollers R1 and R2 are on standby in a contact correspondence state in which they can be drawn out. When the left and right initial feeding rollers R1 and R2 are driven, the rotation transmission force from the initial feeding motor M2 having a built-in clutch is transferred via the horizontal shaft 18 and both transmission belts B1 and B2 that are installed in the feeding width direction. Drive is transmitted to both rollers R1 and R2, and both rollers R1 and R2 are rotationally driven, whereby the stacker 1
The banknotes 13 on the upper surface are sequentially fed from 2 to the initial stage. Further, with respect to the left and right initial feeding rollers R1 and R2, the pressing contact force of both the rollers R1 and R2 can be individually and independently adjusted by the left and right pressing force adjusting mechanisms 15 and 16. .. The above-mentioned pressing force adjusting mechanism 15, 16
Is the rotational transmission force from the left and right pressing motors M3 and M4,
The horizontal shaft 18 is connected via the left and right pressing force transmission belts B3 and B4.
The pressing arms 19 and 20 that are transmitted to the left and right pressing arms 19 and 20 that are pivotally supported above and receive the rotation transmitting force are
With the rotation fulcrum as a fulcrum, the left and right initial feeding rollers R1 and R2 pivotally attached to the tip ends of the arms 19 and 20 can be individually adjusted downward by pressing. At the feeding position of the feeding path 14, the left and right feed rollers R3 and R4 mounted with a high friction member 21 such as a rubber material for feeding one sheet per rotation on a part of the peripheral surface, and rotation in the feeding direction. Left and right gate rollers R5 for single-sheet feeding control
, R6 are opposed to each other in a so-called overlap type in which concaves and convexes correspond to facilitate separation, and a timing detection sensor S4 is provided on the feed roller R3 to detect one rotation operation of the feed roller, and thereby, the bill The bill 13 is fed out at a constant pitch by controlling the timing of feeding one bill. The above-mentioned left and right gap adjusting mechanisms 22 and 23 have the same left and right mechanisms. Of these, the left side gap adjusting mechanism 22 will be described as an example. A tilt lever 24 that allows the gate roller R5 to tilt and supports the tilt roller 24, and this tilting mechanism. It is composed of a gap adjusting motor M5 which adjusts the tilt amount of the lever 24 to adjust the overlap amount between the gate roller R5 and the feed roller R3. The tilting lever 24 described above has a G shape, and the gate roller R5 described above is pivotally attached to the G-shaped projecting piece 25 in the middle portion thereof, and the gate roller R5 mounts the upper end pivotally supporting portion 26 of the tilting lever 24. The gate roller R5 is biased and supported on the feed roller R3 side by the biasing action of the biasing spring 27 connected to the lower end of the tilting lever 24 and allowed to tilt at the tilting fulcrum. A clearance adjusting motor M5 equipped with a lead screw 28 that moves forward and backward by a pulse output is provided opposite to the lower part of the tilt lever 24.
By moving the lead screw 28 of No. 5 forward, the lower part of the tilt lever 24 is pushed in the reverse urging direction and the gate roller R5
Is slightly displaced and finely adjusted in a direction to widen the facing gap between the gate roller R5 and the feed roller R3. Conversely, by retracting the lead screw 28, the bias spring 27
The lower part of the tilting lever 24 is tilted in the direction in which the urging force of the gate roller R5 acts to slightly displace the gate roller R5.
5 Finely adjust in the direction of narrowing the opposing gap between 5 and the feed roller R3. In this case, the left and right gap adjusting mechanisms 22, 23
Are individually driven by the left and right independent gap adjusting motors M5 and M6, and in conjunction with this, the left and right independent gate rollers R5 and R6 are individually finely adjusted by a predetermined amount.
Further, right and left feeding detection sensors S1 and S2 are arranged in the conveyance width direction at the rear positions of the rollers R3 to R6,
The feeding timing state, skew state, etc. of the bill 13 to be fed are detected. Then, based on these detection data, the pressing forces of the left and right initial feeding rollers R1 and R2 are individually adjusted to adjust the feeding pressure to an optimum feeding pressure state. If there is room for correction, the gap adjusting mechanisms 22 and 23 located at the subsequent stage perform re-correction operation and feed-out control. As a result, the fed-out bill 13 is corrected and fed out to an appropriate feeding-out state in which the deviation of the feeding-out timing degree and the skew degree is eliminated.

FIG. 3 is a block diagram of a control circuit of the initial feeding pressure control device for bills, in which the proper pressing value calculation circuit 31 is optimal based on the paper quality tendency in which the weakness of the bill and the feeding timing speed are proportional. The pressure data at the time of control output such as fuzzy data for calculating the feed operation amount is stored and managed, and the data is read at the time of control output, and the left and right feed detection sensors S1 and S2 and the timing detection sensor S4 are used. The optimal right and left proper pressing values PRn and PLn are calculated and obtained based on the bill feeding state detection data such as the skew degree and the timing degree input as described above. The right and left proper pressure values PR obtained by this calculation
n and PLn are output to the left and right current control circuits 32 and 33, respectively, and the left and right drive current values IR and IL corresponding to the right and left proper pressure values PRn and PLn are output to the left and right pressing motors M, respectively.
Supply to 3, M4. As a result, the pressing forces of the left and right initial feeding rollers R1 and R2 corresponding to the two motors M3 and M4 are individually adjusted to correspond to the optimal feeding pressing force according to the feeding conditions at that time. Further, the initial feeding pressure control circuit 34 depressurizes the initial feeding rollers R1 and R2 so that the pressing force of the initial feeding rollers R1 and R2 becomes a decompression value suitable for feeding a weak banknote at the start of feeding of a plurality of bills continuously. The data ΔP is output, and this depressurization data ΔP is added at the time of the first output of the right and left proper pressure values PRn, PLn output from the proper pressure value calculation circuit 31 described above, and is initialized. The pressing force of the feeding rollers R1 and R2 is reduced below a preset normal pressing force. As a result, even if the first banknote has a weak stiffness, the banknote can be stably fed out, and the buckling at the banknote passing position between the feed rollers R3, R4 and the gate rollers R5, R6 may occur. It is possible to perform stable feeding with paper jams eliminated. After the first first sheet is fed by the control signal in consideration of this pressure reduction data ΔP, the initial feeding roller is allowed to return to the normal pressing force, and the second and subsequent sheets are pressed and fed as usual.

The processing operation of the banknote initial payout pressure control device 11 thus constructed will be described below with reference to the flowchart of FIG. Now, stack 1 of multiple banknotes 13
2 when continuously feeding, the initial feeding pressure control circuit 34 outputs the pressure reduction data ΔP so that the pressure reduction value is suitable for feeding a weak banknote, and the initial feeding roller R1, The pressing force of R2 is reduced from the preset regular pressing force (step n1). The first first sheet is delivered by the low pressing force of the reduced initial delivery rollers R1 and R2. At this time, the first sheet is delivered with a tendency to be delayed, but this first sheet is temporarily The feed rollers R3 and R4 can be stably fed out under the optimum feeding conditions corresponding to old weakened banknotes, moistened banknotes wet with rain, etc., or weak foreign currency banknotes.
The gate rollers R5 and R6 can easily pass through the single-sheet restricting portion and are reliably delivered. In addition, when the first first bill is a normal bill, the bill is fed gently, and the bill can be fed stably without any trouble. After feeding the first sheet, the pressing force of the initial feeding rollers R1 and R2 is allowed to return to the preset regular pressing force,
The second and subsequent sheets are pressed and fed as usual (steps n2 to n5).

As described above, since the feed roller is fed at a pressure lower than the normal pressing force for the first first sheet when the banknote is delivered, the delivery pressure is suitable for a banknote having a weak stiffness. The first bill can be stably fed even if the stiffness of the first bill is weak, and stable feeding can be performed by eliminating the buckling and the paper jam at the passage position of the one-sheet feeding restricting unit. Then, after feeding the first sheet, in order to allow the feed roller to return to the normal pressing force, the pressing force adjusting means is pressed and adjusted for the second and subsequent sheets based on the detection data, It is possible to perform stable pressing control as usual.

In the correspondence between the present invention and the configuration of the above-described one embodiment, the initial feeding pressure control device for paper sheets according to the present invention corresponds to the initial feeding pressure control device 11 for banknotes according to the embodiment, and so on. The sheet storage section corresponds to the stacker 12, the sheet corresponds to the banknote 13, the feed rollers correspond to the left and right initial feeding rollers R1 and R2, and the pressing force adjusting means corresponds to the left and right. Corresponding to the pressing force adjusting mechanisms 15 and 16, the proper pressing value calculation circuit 31, the left and right current control circuits 32 and 33, and the left and right pressing motors M3 and M4. Although R4 corresponds to the left and right gate rollers R5 and R6, and the initial feeding pressure control means corresponds to the initial feeding pressure control circuit 34, the present invention is not limited to the configuration of the above-described embodiment. Absent.

[Brief description of drawings]

FIG. 1 is a side view of essential parts showing a bill initial feeding pressure control device of the present invention.

FIG. 2 is a plan view of a principal part of a bill initial feeding pressure control device according to the present invention.

FIG. 3 is a control circuit block diagram of the banknote initial feeding pressure control device of the present invention.

FIG. 4 is a flowchart showing the processing operation of the bill initial feeding pressure control device of the present invention.

[Explanation of symbols]

 11 ... Initial payout pressure control device for banknotes 12 ... Stacker 13 ... Paper money 15, 16 ... Left and right pressing force adjusting mechanism 31 ... Proper pressing value calculation circuit 32, 33 ... Left and right current control circuit 34 ... Initial payout pressure control circuit R1 , R2 ... left and right initial feeding rollers R3, R4 ... left and right feed rollers R5, R6 ... left and right gate rollers M3, M4 ... left and right pressure motors ΔP ... pressure reduction data

Claims (1)

Claim: What is claimed is: 1. A feed roller for feeding a paper sheet in press contact with a feeding side of the paper sheet stored in the paper sheet storage section, and a pressing force of the feed roller. What is claimed is: 1. A sheet feeding device, comprising: a pressing force adjusting unit that adjusts based on detection data at the time of feeding a sheet; and a sheet feeding regulation unit that regulates a sheet fed out by one sheet. Initial feeding pressure control to reduce the pressing force of the feed roller from a preset regular pressing force at the start of feeding out a plurality of sheets of the same kind continuously, and allow the pressure to return to the regular pressing force after the first one sheet is fed out. An initial feeding pressure control device for paper sheets, which is provided with a means.