JP2547888B2 - Gap adjustment mechanism of bill feeding device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a gap adjusting mechanism of a bill feeding device,
Particularly, it relates to a gap adjusting method for adjusting a gap between the picker roller and the peeling roller.

2. Description of the Related Art Conventionally, in a bill feeding device, as shown in FIG. 4, the adjusting arm 33 is adjusted by an adjusting screw 35, an adjusting nut 36, an adjusting spring 37, and a fixing nut 38 attached to a base 34, and the adjusting arm 33 is not shown. A minute gap between the picker roller 31 for feeding the bill and the peeling roller 32 rotatable only in one direction, that is, the gap value between the picker roller 31 and the peeling roller 32 is adjusted.

The adjustment of the gap value is performed separately for each pair of the picker roller 31 and the peeling roller 32 that face each other.

Further, the gap value is adjusted by setting a thickness gauge (not shown) in the gap between the picker roller 31 and the peeling roller 32.
And the thickness of the thickness gauge is pulled out via a tension gauge (not shown), and the resistance is adjusted to be equal to the resistance of the other picker rollers and the peeling roller.

In such a gap adjusting method of the conventional bill feeding device, since the peeling roller 32 is positioned by the adjusting arm 33, the adjusting screw 35, the adjusting nut 36, the adjusting spring 37, and the fixing nut 38, after the initial setting of the gap value. When a banknote is fed, the left and right gap values fluctuate due to the load of the banknote, etc. This fluctuation causes the left and right gap values to be unbalanced, and skews and jams are likely to occur in the fed banknotes. Has the drawback of having to reset.

Also, adjust the gap value so that the resistance force when pulling out the thickness gauge sandwiched between the picker roller 31 and the peeling roller 32 via the tension gauge becomes equal to the resistance force of other picker rollers and peeling roller. Since this is done, there is a drawback that it takes time to adjust the gap value.

An object of the present invention is to eliminate the above-mentioned drawbacks of the conventional ones, and it is possible to always maintain an appropriate gap value and shorten the gap value adjustment time. The purpose is to provide a mechanism.

Configuration of the invention, the gap adjusting mechanism of the bill feeding device according to the present invention,
A gap adjusting mechanism of a bill feeding device that separates the bills to be fed by passing through a gap between the picker roller and the peeling roller, the parallelism detecting means for detecting the parallelism between the picker roller and the peeling roller, and the parallelism. Parallelism adjusting means for adjusting the parallelism between the picker roller and the peeling roller according to the detection result of the degree detecting means,
Measuring means for measuring the distance between the picker roller and the peeling roller, and distance adjusting means for adjusting the distance between the picker roller and the peeling roller so that the distance measured by the measuring means becomes a predetermined distance. And is provided.

Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view including a partial cross section of an embodiment of the present invention, and FIG. 2 is a cross sectional view taken along the line AA of FIG. In these figures, idler rollers 2a and 2b are arranged on the same axis as the picker rollers 1a to 1c for feeding out banknotes (not shown) with the picker rollers 1a to 1c interposed therebetween, and also face the picker rollers 1a to 1c. Thus, the peel rollers 3a and 3b are arranged.

For the shaft 3c supporting the peeling rollers 3a and 3b, the peeling roller 3
The rotary shaft 15 is attached in the middle between a and 3b.
When the worm wheel 5 rotates in the direction of arrow B, the shaft 3c also rotates in the direction of arrow B.

Further, on the shaft 3c, distance detection mechanisms 4a and 4b for measuring the distance to the idler rollers 2a and 2b are provided.

Here, the distance detection mechanisms 4a, 4b have the same configuration as the focus error detection optical system of the astigmatism method used for focus control in the optical disc device, and this optical system allows the idler rollers 2a, 2b and the peeling roller 3a, The distance and parallelism with 3b are detected.

Regarding the focus error detection optical system of the astigmatism method, "optical disc technology" (Noboru Murayama, Hiroshi Koide, Kasaku Yamada,
Kunikane Shin, Radio Technology, 1989, P.82-85).

The worm wheel 5 meshes with the worm 6 attached to the rotation shaft of the rotation motor 7, and rotates in the direction of arrow B when the rotation motor 7 is rotationally driven.

A table on which the rotation motor 7 and the rotation shaft 15 are placed.
13 moves in the direction of arrow C by the rack 8 meshed with the pinion gear 9.

The pinion gear 9 is provided coaxially with the gear 10 meshed with the gear 11 attached to the rotating shaft of the moving motor 12, and rotates in conjunction with the rotation of the moving motor 12.

The spring 14 compensates for rattling caused by the rack 8 and the pinion gear 9 when the table 13 moves in the direction of arrow C.

FIG. 3 is a flow chart showing the operation of one embodiment of the present invention. The operation of the embodiment of the present invention will be described with reference to FIGS.

Distance between idler rollers 2a, 2b and peel roller 3a, 3b,
That is, after the distance between the picker rollers 1a to 1c and the peeling rollers 3a and 3b is initialized, the bills are fed out by the picker rollers 1a to 1c and the peeling rollers 3a and 3b, and when the gap variation occurs due to the feeding, it is not illustrated. When the control unit knows that the gap variation has occurred based on the signals from the distance detection mechanisms 4a and 4b, the worm 6 is rotated by rotationally driving the rotation motor 7 according to the variation, and the worm 6 is rotated.
The worm wheel 5 meshed with is rotated in the direction of arrow B (step 21 in FIG. 3).

At this time, the control unit determines whether the distances l1 and l2 from the distance detection mechanisms 4a and 4b to the idler rollers 2a and 2b have become equal by the signals from the distance detection mechanisms 4a and 4b, that is, the picker roller 1a.
~ 1c and the peeling rollers 3a, 3b are in parallel and l1-l2 = 0
It has been determined (step 22 in FIG. 3) that l1−
When l2 = 0, the rotation motor 7 is stopped (step 23 in FIG. 3).

After that, the control unit rotates the moving motor 12 to rotate the pinion gear 9, and the rack 8 moves the table 13 in the direction of arrow C (step 2 in FIG. 3).
Four).

In this case, the control unit determines whether the distances l1 and l2 from the distance detection mechanisms 4a and 4b to the idler rollers 2a and 2b have become the initial setting value l0 by the signals from the distance detection mechanisms 4a and 4b, that is, l1 (= l
2) = l0 is judged (Fig. 3, step 2
5) When l1 (= l2) = l0, the moving motor 12 is stopped (step 25 in FIG. 3).

Thus, the distance detection mechanisms 4a and 4b enable the picker roller 1
The parallelism and distance between the a to 1c and the peeling rollers 3a and 3b are detected, and the picker rollers 1a to 1c and the peeling rollers 3a and 3b are detected by the worm wheel 5, the worm 6 and the rotation motor 7 according to the detection result. In parallel with each other, and the table 13 is moved in the direction of the arrow C by the rack 8, the pinion gear 9, the gears 10 and 11, and the moving motor 12 according to the detection result, and the picker rollers 1a to 1c and the peeling roller 3a, By adjusting so that the distance to 3b becomes a predetermined distance, it is possible to always maintain an appropriate gap value even when the gap value fluctuates due to the load of bills and the like.

In addition, the picker rollers 1a to 1c are provided by the distance detection mechanisms 4a and 4b.
By detecting the parallelism and the distance between the peeling roller 3a and the peeling roller 3a and driving the rotation motor 7 and the movement motor 12 in accordance with the detection result, the picker roller 1a.
Since the gap between the 1c and the peel roller 3a, 3b is adjusted, the gap value adjustment time can be shortened.

As described above, according to the present invention, the parallelism and the distance between the picker roller and the peeling roller are measured by the distance detecting mechanism, and the parallelism between the picker roller and the peeling roller is measured according to the measurement result. By adjusting the distance and the distance, an accurate gap value can always be maintained, and the gap value adjustment time can be shortened.

[Brief description of drawings]

1 is a plan view including a partial cross section of an embodiment of the present invention, FIG. 2 is a cross sectional view taken along the line AA of FIG. 1 in the direction of the arrow, and FIG. 3 shows the operation of the embodiment of the present invention. The flowchart shown in FIG. 4 is a block diagram showing a conventional example. Explanation of symbols of main parts 1a to 1c …… Picker roller 2a, 2b …… Idler roller 3a, 3b …… Punching roller 4a, 4b …… Distance detection mechanism 5 …… Worm wheel 6 …… Warm 7 …… Rotation motor 8 ...... Rack 89 …… Pinion gear 12 …… Movement motor 13 …… Table

Claims (1)

(57) [Claims] 1. A gap adjusting mechanism of a bill feeding device for separating bills to be fed by passing through a gap between a picker roller and a peeling roller, wherein parallelism detection for detecting parallelism between the picker roller and the peeling roller. Means, parallelism adjusting means for adjusting the parallelism between the picker roller and the peeling roller according to the detection result of the parallelism detecting means, and measuring means for measuring the distance between the picker roller and the peeling roller. And a distance adjusting means for adjusting the distance between the picker roller and the peeling roller so that the distance measured by the measuring means becomes a predetermined distance.