JPH03166146A - Sheet transport device - Google Patents

Abstract

PURPOSE:To prevent the sheets following a one, which is sensed to be inclined, from becoming incapable of being distinguished by furnishing a stopping means to stop the exfoliating motion when skew of sheet is sensed by a sensing means. CONSTITUTION:In case a sheet of paper 7 has inclination in a size which allows distinction, a skew sensing part 6 gives an admit signal to a distinction part 3, which thus performs distinction of the sheet 7. In the opposite case, the skew sensing part 6 gives a stop signal to a sheet exfoliating part 1, which thus once stops the exfoliating motion, and also gives a non-admit signal to the distinction part 3, which thus refrains from performance of distinguishing the sheet 7. Eventual inclination of the sheets following this sheet concerned 7 can be corrected by stopping in this manner the exfoliating motion of the sheet exfoliating part 1, which should prevent the following sheets from becoming incapable of being distinguished.

Description

TECHNICAL FIELD The present invention relates to a paper sheet conveying device, and more particularly to detecting skewed feeding of paper sheets after peeling one of a plurality of sheets.

Conventional technology Conventionally, in a paper sheet conveying device, when the paper sheet is conveyed without tilting with respect to the conveyance path, the identification section can identify the sheet, and the paper sheet is not tilted toward the conveyance path. When paper sheets are peeled off by the peeling section and are conveyed to the recognition section, a sensor detects the tilt of the paper sheets just before the recognition section. After the paper sheet whose tilt is detected by the sensor becomes unidentifiable by the identification section, processing such as returning it to the peeling section is performed.

In such conventional paper sheet conveying devices, a sensor detects the inclination of the paper sheet immediately before the identification unit, and the paper sheet whose inclination is detected by the sensor is transferred to the peeling unit after the paper sheet whose inclination is detected cannot be identified by the identification unit. Therefore, when the sensor determines that there is a tilt, there is a high possibility that other sheets on the conveyance path after that sheet are also tilted, and those sheets The drawback is that everything must be made indistinguishable.

Purpose of the Invention The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional method, and even if the tilt of the paper sheet is detected, it is possible to prevent the subsequent paper sheets from becoming indistinguishable. The purpose of the present invention is to provide a paper sheet conveying device that can transport paper sheets.

Structure of the Invention The paper sheet conveying device according to the present invention includes a peeling means for peeling one of a plurality of paper sheets, and an identification device for identifying the paper sheets peeled by the peeling means and conveyed. a paper sheet conveying device comprising: a detection means for detecting skew feeding of the paper sheet immediately after peeling by the peeling means; and a stop means for stopping the peeling operation of the peeling means.

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

FIG. 1 is a block diagram of an embodiment of the present invention. In the figure, a paper sheet peeling section 1 sends out a bundle of paper sheets 7 onto a conveyance path 2 while peeling them one by one.

Immediately after the paper sheets 7 on the conveyance path 2 are peeled off by the paper sheet peeling section 1, the sheets 7 are removed from the conveyance path 2 by a sensor 4.5 (the sensor 5 is not shown).
After the inclination with respect to is checked, it is conveyed in the direction of arrow A and sent to the identification section 3.

Here, the sensors 4 and 5 include light emitting elements 4a and 5a (light emitting element 5a is not shown) and light receiving elements 4b and 5b (light receiving element 5b).
(not shown), and when the paper sheet 7 passes between the light emitting elements 4a, 5a and the light receiving elements 4b, 5b, the light emitting element 4a
, 5a is blocked, the light receiving element 4b,
5b outputs "1" to the skew detection section 6, and the light emitting element 4
When the irradiated light from a, 5a is not blocked by the sheet 7, the light receiving elements 4b, 5b output 0'' to the skew detection section 6.

The identification unit 3 identifies the paper sheet 7 if the inclination of the paper sheet 7 on the transport path 2 is within the permissible range, and identifies the paper sheet 7 if the inclination of the paper sheet 7 on the transport path 2 is outside the permissible range. Leaves 7 are not identified.

FIG. 2 is a diagram showing a method for detecting the inclination of paper sheets according to an embodiment of the present invention. In the figure, sensors 4.5 are provided to detect both sides of the filter paper sheet 7 being conveyed in the direction of arrow A on the conveyance path 2, and the sensors 4 and 5 are arranged to detect when the paper sheet 7 is traveling diagonally. Outputs the detection signal to.

FIG. 3 is a timing chart showing the operation of the sensors 4 and 5 shown in FIG. In the figure, timing a is sensor 4
indicates the timing at which the sensor 5 begins to be shielded from light by the sheet 7, and timing b indicates the timing at which the sensor 5 begins to be shielded from light by the sheet 7.

Further, a time difference C indicates a shift between timing a when the sensor 4 begins to be shielded from light by the sheet 7 and timing b when the sensor 5 begins to be shielded from light by the sheet 7.

The operation of one embodiment of the present invention will be explained using these FIGS. 1 to 3.

When the paper sheet 7 is peeled off by the paper sheet peeling section 1 and sent onto the conveyance path 2, and the sensors 4 and 5 are shielded from light, the skew detection section 6 detects light from the light receiving elements 4b and 5b of the sensors 4 and 5. Timings a and b when the light begins to be blocked by the paper sheet 7 due to the output signal of
By detecting the time difference C, the inclination of the paper sheet 7 is detected.

If the inclination of the paper sheet 7 is a value that allows identification, the skew detection section 6 outputs a permission signal to the identification section 3 to cause the identification section 3 to identify the paper sheet 7.

In addition, if the inclination of the paper sheet 7 is not a value that allows identification, the skew detection section 6 outputs a stop signal to the paper sheet separation section 1 and temporarily stops the separation operation in the paper sheet separation section 1. Along with letting
A disallow signal is output to the identification section 3 to prevent the identification section 3 from identifying the paper sheet 7.

In this way, the paper sheet 7 immediately after being peeled off by the paper sheet peeling section 1
The sensor 4.5 and the skew detection section 6 detect the skew of the paper sheet 7, and when the skew detection section 6 detects the skew of the paper sheet 7, the paper sheet separation section 1 stops the stripping operation. By doing so, even if the inclination of the paper sheet 7 is detected, the peeling of the paper sheet 7 is temporarily stopped, so that the paper sheet 7 is
Since the inclination of the subsequent paper sheets can be corrected, it is possible to prevent the subsequent paper sheets from becoming unidentifiable.

Effects of the Invention As explained above, according to the present invention, the skew of paper sheets immediately after peeling is detected, and when the skew of paper sheets is detected, the peeling operation is stopped. This has the effect that even if the inclination of the paper sheet is detected, it is possible to prevent subsequent paper sheets from becoming unidentifiable.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a diagram showing a method for detecting the inclination of paper sheets according to an embodiment of the present invention, and FIG.
The figure is a timing chart showing the operation of the sensor of FIG. 2. Explanation of symbols of main parts 1... Paper sheet peeling section 2... Conveyance path 3... Identification section 4.5... Sensor 6... ...Oblique detection section

Claims (1)

[Claims] (1) A paper sheet conveyance device including a peeling means for peeling one of a plurality of paper sheets, and an identification means for identifying the paper sheet peeled and conveyed by the peeling means. a detection means for detecting skew of the paper sheet immediately after being peeled by the peeling means; and a stop for stopping the peeling operation of the peeling means when the skew of the paper sheet is detected by the detection means. What is claimed is: 1. A paper sheet conveying device comprising: means.