JPH03259837A - Feeding device for paper sheet - Google Patents

Abstract

PURPOSE:To eliminate any paper dust stuck to a soft material, prevent a slip between a roller and each of paper sheets from occurring, and deliver these paper sheets piece by piece without fail by installing a cleaning part in at least either of a pusher roller or picker roll. CONSTITUTION:In this device, there are provided a pusher roller 1 coming into contact with the uppermost one of lots of paper sheets 8 stacked in pile and delivering each of them piece by piece, and a picker roller 2 rotating in link with this pusher roller 1 and conveying these paper sheets 8 delivered by this roller 1. Also, there are provided a one-way roller 4, being installed as opposed to the picker roller 2 and rotating only in one direction, thereby checking any delivery of more than two sheets of the paper sheets 8, and a feed roller 3 rotating at high speed in order to convey the delivered paper sheets 8 along the periphery of the picker roller. At this time, a cleaning part (cleaning brush) 9 is installed in at least either of the pusher roller 1 or the picker roller 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper sheet dispensing device for separating a large number of accumulated paper sheets and dispensing them one by one.

[Conventional technology]

In a conventional paper sheet dispensing device for separating a large number of accumulated paper sheets and dispensing them one by one, as shown in FIG. A part thereof has a soft material 1a such as a comb, and a picker roller 2 that rotates in conjunction with the pusher roller 1 is provided below it. The picker roller 2 has a soft material 2a on its outer periphery. The one-way roller 4 provided opposite to the picker roller 2 operates in one direction (direction of arrow C).
It is rotatable only in this direction, and prevents the conveyance of the second sheet fed out by the pusher roller 1. A feed roller 3 that rotates at high speed is provided below the picker 2 so that the paper sheets fed out by the pusher roller 1 are conveyed along the outer periphery of the picker roller 2. A large number of accumulated paper sheets 8 are transferred to a kite play 1 5 that restricts contact with the pusher roller 1 and the pickerola 2 only partially.
and the backup plate 7, which is always pressed in the direction of arrow B by a splinter (not shown), and its lower edge contacts the kite plate 1-0, which also serves as a guide for feeding. ing.

The operation of the paper sheet feeding device configured in this way is such that the pusher roller and the picker roller 2 are rotated in the direction of arrow A by a drive motor (not shown), and the paper sheets 8 are sequentially delivered from the topmost one. Intermittent rotation is performed to feed out one sheet at a time. The soft material 1a of the pusher roller and the soft material 2a of the picker roller 2 come into contact with the surface of the paper sheet to be fed out (second
(The figure shows the state at this time). When a plurality of sheets are fed out at the same time, there is only a gap between the picker roller 2 and the one-way roller 4, which is equivalent to the thickness of one sheet. A one-way roller 4 that rotates only in the direction prevents a plurality of sheets from being fed out and ensures that one sheet at a time is fed out.

[Problem to be solved by the invention] - The conventional paper sheet dispensing device as described above generates paper dust when dispensing a large number of accumulated paper sheets one by one.
This paper powder adheres to the soft material provided around the outer periphery of the pusher roller and picker roller, which causes slippage between the paper sheets and the surface of the paper sheets, making it impossible to reliably feed each sheet one by one. There are some drawbacks.

[Means to solve the problem]

The paper sheet feeding device of the present invention includes a pusher roller that contacts and feeds out the uppermost sheet of a large number of accumulated sheets, and a pusher roller that rotates in conjunction with the pusher roller and is fed out by the pusher roller. a picker roller that conveys the paper sheets, a one-way roller that is provided opposite to the picker roller and rotates in only one direction to prevent feeding out two or more of the paper sheets, and the fed paper sheet. A paper sheet feeding device comprising a foot roller that rotates at high speed to convey leaves along the outer periphery of the picker roller, wherein a cleaning section is provided on at least one of the pusher roller or the picker roller. It is.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view showing a first embodiment of the present invention.

In FIG. 1, a pusher roller 1 that feeds paper sheets has a soft material 1a such as a comb on a part of its outer periphery, and below it is a picker roller 2 that rotates in conjunction with this pusher roller. is the provision. The picker roller 2 has a soft material 2a on a part of its outer periphery. Piccarola 2
One-way roller 4 that can rotate only in one direction facing the
A foot roller 3 is provided below the picker roller 2 and rotates at high speed in order to convey the unreeled paper sheets along the outer periphery of the picker roller 2. A large number of accumulated paper sheets 8 are always urged by a guide plate 5 that restricts contact with the pusher roller 1 and the picker roller 2 so that the contact is only partial, and a spring (not shown), so that the sheets always follow the arrow B. The paper sheet 8 is placed between the paper sheet 8 and the backup plate 7 which is pressed in the direction, and the lower edge of the paper sheet 8 is in contact with the kite plate 6 which also serves as a feeding guide. A cleaning brush 9 for cleaning the soft material 1a of the pusher roller 1 is also provided.

Next, the operation of the embodiment of the paper sheet feeding device described above will be explained.

The pusher roller 1 and the picker roller 2 are driven by a drive motor (
(not shown) in the direction of arrow A, and performs intermittent rotation in order to sequentially feed out the paper sheets 8 one by one starting from the top one. When the soft material 1a of the pusher roller 1 and the soft material 2a of the picker roller 2 come into contact with the surface of the paper sheets to be fed out (FIG. 1 shows the state at this time), the feeding operation starts one by one. . At this time, in order to ensure that the soft material 1a of the pusher roller 1 performs the feeding operation while sliding on the surface of the paper sheet, when the soft material 1a of the pusher roller 1 passes under the cleaning brush 9, the soft material 1a of the pusher roller 1 is Remove paper dust adhering to the outer periphery of material 1a.

When multiple sheets are fed out at the same time, there is only a gap between the picker roller 2 and the one-way roller 4 corresponding to the thickness of one sheet, so the arrow C
A one-way roller 4 that rotates only in the direction prevents the feeding of a plurality of sheets and reliably feeds out one sheet at a time.

FIG. 2 is a sectional view showing a second embodiment of the present invention.

While the embodiment shown in FIG. 1 uses a cleaning brush 9 to clean the soft material 1a of the pusher roller 1, this embodiment uses a cleaning brush 10.
The soft material 2a of the picker roller 2 is cleaned using the cleaning method. The configuration and operation of other parts are the same as in the first embodiment described above.

FIG. 3 is a sectional view showing a third embodiment of the present invention.

In this embodiment, the cleaning brush 9 is made of a soft material 1a of the pusher roller 1.
A cleaning brush 1o is provided for cleaning the soft material 2a of the picker roller 2.

FIG. 4 is a sectional view showing a fourth embodiment of the present invention, in which a cleaning brush 1.1 is provided between the pusher roller 1 and the picker roller 2, and the pusher roller 1. The soft material 1a of the picker roller 2 is cleaned by the lower surface 11b, and the soft material 2a of the picker roller 2 is cleaned by the lower surface 11b, so that one cleaning brush 11 can clean both rollers. The structure and operation of other parts of the embodiment of FIGS. 3 and 4 are the same as the embodiment of FIG. 1.

〔Effect of the invention〕

As explained above, the paper sheet feeding device of the present invention has a cleaning section for removing paper dust that has adhered to the soft material of the roller that feeds paper sheets. This has the effect of preventing slippage between the roller and the paper sheets and ensuring that the paper sheets can be fed out one by one.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention, FIGS. 2, 3, and 4 are sectional views showing second, third, and fourth embodiments of the present invention, respectively; FIG. 5 is a sectional view showing an example of a conventional sheet feeding device. 1... Pusher roller, 2... Picker roller, 3... Feed roller, 4...
・One-way roller, 5, 6...Guide plate, 7...Backup plate, 8...
Paper leaves, 9/10/11...cleaning brushes.

Claims (1)

[Claims] A pusher roller that contacts and feeds out the topmost sheet of a large number of stacked sheets, and a picker roller that rotates in conjunction with the pusher roller and conveys the sheet that has been fed out by the pusher roller. a one-way roller that is provided opposite to the picker roller and rotates in only one direction to prevent two or more of the paper sheets from being fed out; What is claimed is: 1. A paper sheet dispensing device comprising a feed roller that rotates at high speed for conveying paper sheets, characterized in that a cleaning section is provided on at least one of the pusher roller and the picker roller.