JPS608995A - Sheet paper delivery mechanism - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention relates to 1 paper sheets such as banknotes, etc. Regarding the processing device, it particularly relates to a paper sheet feeding mechanism (for feeding out stacked paper sheets one by one using a flexible seal).

Technical background In recent years, automatic teller machines, automatic deposit machines, or automatic deposit/withdrawal machines have been used to streamline counter operations at banks, etc. In these automatic machines, banknotes 7 are loaded from the banknote storage section for withdrawals, and from the banknote input section for deposits.
a- A banknote feeding mechanism is used that feeds out one bill at a time (two times).

Conventionally, as a paper sheet feeding mechanism such as this banknote feeding mechanism, a general opening 2 stack of paper sheets is pressed by a big roller and a feeding roller (2), and the big roller and feeding roller are rotated. A so-called friction-type sheet feeding mechanism is used, which has two configurations, to feed out the sheets Y one by one using the mechanism.

However, the conventional 7-reaction type paper sheet dispensing mechanism has problems as described below, and countermeasures are desired.

PRIOR ART AND PROBLEMS In the conventional mechanism as described above, one stack of paper sheets is suppressed by two big rollers and a feed roller C.

The paper sheet is fed out by simply rotating both rollers in the forward direction from a stationary state. If the pressure is uneven, the feeding force will be uneven, and the fed sheets will tend to run skewed.Also, the static friction force is large.

There was a problem in that the feeding was unstable, such as the second sheet being dragged by the first sheet and sometimes being fed out.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned problems of the conventional Flixiron paper sheet feeder @-2.

That is, the object is to provide a paper sheet feeding mechanism that enables stable feeding.

Structure of the Invention The present invention provides a means for slightly vibrating both of the rollers in both forward and reverse rotational directions in the flixilon type sheet feeding mechanism C2 as described above, and after the two-end run is slightly vibrated, the C2 It is configured to feed paper sheets by rotating it in the forward direction.

(3) Embodiments of the Invention Below, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic diagram of an embodiment of the present invention (double paper sheet feeding mechanism).
The paper sheets S are placed on a stacking table la which is urged upward by a spring lb (
There are two accumulations. The feeding mechanism is Pi-Tsu crawler 2. It is equipped with a feeding roller 31, a separating roller 4, and feeding rollers 5 and 6. Figure 3 ↓ (As shown in Figure 3) (2. The feeding roller and one feeding roller 5 are attached to a common shaft 71, the separation roller 4 is placed opposite the feeding roller 3, and the feeding rollers 5 and 6 are mutually connected. (The two are arranged opposite each other. The feeding roller 3 is connected to the shaft 7 (:
The delivery roller 5 is fixed and rotatably attached to the shaft 7 via a bearing (not shown). The shaft 7 (2 is connected to a motor M1 that can be driven in both forward and reverse directions, and the change shaft 7 is connected to the belt 8 (2) and the support shaft 9 (2) of the pick roller 2 is connected to the belt 8 (2). The rollers 3 can be driven to rotate in both forward and reverse directions in synchronization with each other (°C (4)).
are connected, and this (: Therefore, the delivery rollers 5 and 6 are always (
It is rotationally driven in the two sheet feeding direction.

Next, what is the feeding action of the above feeding mechanism? explain.

The stack of paper sheets S is pushed up by the action of the spring ib (2) and the pick roller 2 (2) and the feed roller 3 (2).

When the sheet feeding command signal st is input to the control circuit 20 of the feeding mechanism, the motor M1 is controlled as follows to perform feeding.

(1) As shown in Fig. 4, the command signal s is
When t is input, the control circuit 20 first applies an oscillating current pulse LY of two forward and reverse polarities to the motor M1 (rL, 1).
1 (: As shown, the pick roller 2 and the feed roller 3 vibrate slightly in both forward and reverse rotation directions.

As a result, one sheet S1 is transferred to the pick roller 2. Feeding roller 3
and the second sheet of paper (the state of static friction changes to a state of dynamic friction between the two).

(2) The second control circuit 20 operates at 1 time 1. and motor M1 (
Two positive polarity currents I27a1' are applied. Then, as shown in FIG. 2, the roller 2 and the feed roller 3 rotate in one direction (5) and the paper sheet SI is fed out.

(3) The paper sheet S1 is fed out and the sensor 11 (
When detected by Y, this detection signal net is sent to the control circuit 2.
0. Based on this detection signal Detl2, the control circuit 20 cuts the current by 12fg as shown in FIG.

The pick roller 2 and feed roller 3 are stopped. The paper sheet S1 is then conveyed to the conveyance path 12 by the conveyance rollers 5 and 61m which are continuously driven by the motor M2.

As mentioned above, one sheet S is not suddenly fed out from the two-static friction state as in the conventional case, but is fed out after being changed from the -dynamic friction state (two). Since the influence of non-uniformity of the paper sheet S1 becomes smaller, the paper sheet S1 is skewed after being fed out, and 1:<<,
In addition, the second sheet S2 is pulled together (-) and is hardly dragged out at the edges, and stable feeding is achieved.As described above, the paper sheet feeding mechanism of the present invention is stable. It is expected to have great effects, such as being able to improve reliability by applying it to automatic turnout (6) devices, etc.

[Brief explanation of the drawing]

1 and 2 are diagrams showing the schematic structure and operation of an embodiment of the paper sheet feeding mechanism according to the present invention 1, and FIG. 3 is a partial plan view of the feeding mechanism viewed from the direction of arrow A in FIG. 1. , FIG. 4 is a drive current waveform diagram of the motor for driving the pick roller and the feeding roller. 1...Paper stacking unit, Ja...Stacking stand,
ib...Spring, 2...Pick roller,
3...Feeding roller. 4... Separation roller, 5.6... Delivery roller. 7.9.10...axis, 8...bell),
11...Sensor, ]2...Paper delivery path, Sl...Paper, M, , M2...Drive motor. Patent applicant Fujitsu Ltd. Patent agent Akira Aoki Patent attorney Kazuyuki Nishidate 1) Yukio patent attorney Akira Yamaguchi (7) 12 nights [￥M1

Claims (1)

[Claims] 1. Spread the stack of paper sheets onto a big roller and a feeding roller, and by rotating the big roller and feeding roller, the paper sheets are fed out one by one using a flexible roller. In the constructed paper sheet feeding mechanism, a means for slightly vibrating both the rollers in both forward and reverse rotational directions is provided, and after the two rollers are slightly vibrated, they are rotated in the C2 forward direction to feed out the paper sheets. (: #1 A paper sheet feeding mechanism characterized by the following.