JPH0455235A - Paper sheets delivering - Google Patents

Abstract

PURPOSE:To remove paper dust without damaging a soft material and certainly draw out paper sheets one by one by providing a cleaning means which removes, in non-contact state, paper dust that adhere on the soft material of a roller for delivering paper sheets. CONSTITUTION:The soft material 1a of a pusher roller 1 and the soft material 2a of a picker roller 2 make contact with the foremost paper sheet of paper sheets 8 and feed it downwards. For the purpose of certainly delivering the paper sheets one by one without slip when the soft material 1a of the pusher roller 1 makes contact with the surfaces of paper sheets 8, an air pump admits compressed air to a cleaning nozzle 9a through a guide tube 9 and the compressed air is forced to blow on the surface of the soft material 1a from the tip of the nozzle for removing paper dust that adhere on the periphery of the soft material 1a when the soft material 1a of the pusher roller 1 passes under the cleaning nozzle 9a.

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]

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 soft material 1a such as rubber is provided on a part of the surface, and a picker roller 2 that rotates in conjunction with the pusher roller 1 is provided below the pusher roller 1. The picker roller 2 is provided with a soft material 2a on a part of its outer peripheral surface.The one-way roller 4, which is provided opposite the picker roller 2, can rotate only in the - direction (direction of arrow C). The pusher roller 1 works with the picker roller 2 to convey the unfed paper sheets downward, and the high speed rotating foot roller 3 sends them out to the next process together with the picker roller 2. The paper sheet 8 is always urged in the direction of arrow B by the kite play 5 and a spring (not shown), which limits contact with the pusher roller 1 and picker roller 2 to partial contact. The paper sheet 8 is held between the back-up plates 1 to 7, and the lower end of the paper sheet 8 is placed on the second part of the plate 6, which also serves as a feeding guide.

The sheet feeding device configured as described above operates as follows.

That is, the pusher roller 1 and the picker roller 2 are driven by a drive motor (not shown), and are moved in the direction of the arrow in order to sequentially feed out the paper sheets 8 downward one by one starting from the frontmost one. Rotates intermittently. 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 foremost sheet of paper sheets 8, they are sent downward by frictional force. If multiple sheets are to be sent out at the same time, there is only a gap equal to the thickness of one sheet between the picker roller 2 and the one-way roller 4. A one-way roller 4 rotatable only prevents the second and subsequent paper sheets from being sent out, and only one sheet is surely sent out.

[Invention or problem to be solved]

In the conventional paper sheet feeding device as described above, paper dust is generated when a large number of accumulated paper sheets are fed out one by one, and this paper dust is transferred to the soft material provided on the pusher roller and picker roller. This has the disadvantage that it adheres to the surface of the paper sheets, causing slippage between the paper sheets and the surface of the paper sheets, making it impossible to reliably feed each sheet one by one.

[Means to solve the problem]

The paper sheet feeding device of the present invention is a paper sheet feeding device that stacks a large number of paper sheets, places them in an upright position, and sequentially feeds out one sheet at a time starting from the foremost sheet. A pusher roller having a first soft material that contacts the foremost sheet of leaves and performs the feeding operation thereof, and a second soft phase that contacts the paper sheet fed out by the pusher roller. a picker roller that performs a feeding operation of the paper sheets, and is provided to at least one of the first soft material and the second soft material to remove paper dust attached to them in a non-contact state. This device has a cleaning device for removing the dust, and in particular, the cleaning device includes a cleaning nozzle and a tube to air 1 that sends compressed air to the cleaning nozzle.

〔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 for contacting paper sheets 8 and feeding out the foremost paper sheet has a soft material 1a such as rubber on a part of its outer periphery. The picker roller 2 performs intermittent rotation in conjunction with the pusher roller 1. A part of the outer periphery of the picker roller 2 has a soft material 1'4' 2 a
This is provided. One-way roller 4 is Picker roller 2
, and is rotatable in only one direction, the direction of arrow C. The foot roller 4 rotates at high speed in order to convey the unreeled paper sheets to the next process. A large number of accumulated paper sheets 8 are always moved in the direction of arrow B by a guide plate 5 that limits contact with the pusher roller 1 and picker roller 2 to partial contact, and by a spring (not shown). They are held between the kite plate 7 which is biased, and their lower ends are placed on a kite plate 6'' which also serves as a feeding guide.

In order to remove paper dust adhering to the soft material 1a of the pusher roller 1, as a means of cleaning it in a non-contact state,
It is provided with a kite duplex 9 for guiding compressed air sent out from an air pump (not shown) and a cleaning nozzle 9a attached to its tip.

The sheet feeding device configured as described above operates as follows.

That is, the pusher roller 1 and the picker roller 2 are driven by a drive motor (not shown) and rotate intermittently in the direction of arrow A in order to feed out the paper sheets 8 one by one starting from the foremost one. The soft material 1a of the pusher roller 1 and the soft material 2a of the picker roller 2 contact the foremost sheet of paper sheets 8 and send it downward. When the soft material 1a of the pusher roller 1 comes into contact with the surface of paper sheets, the soft material 1a of the pusher roller 1 has a lubrication mechanism that allows the soft material 1a of the pusher roller 1 to reliably feed out one sheet at a time without causing slippage. When passing under the cleaning nozzle 9a, compressed air is sent from the air pump to the cleaning nozzle 9a through the kite tube 9, and is blown from its tip onto the surface of the soft material 1a to remove paper dust attached to its outer periphery. When multiple sheets of paper are sent out at the same time, there is only a gap equal to the thickness of one sheet of paper 8 between the picker roller 2 and the one-way roller 4, so that the paper is fed out in the direction of arrow C. The one-way roller 4, which is only rotatable, prevents the second and subsequent sheets from being fed out, and the feeding operation one by one is reliably performed.

FIG. 2 is a sectional view showing a second embodiment of the invention. In this embodiment, the cleaning nozzle 10a is provided to clean the soft material 2a of the picker roller 2. Other configurations and operations are similar to those of the first embodiment.

FIG. 3 is a sectional view showing a third embodiment of the present invention. In this embodiment, a cleaning nozzle 9a is provided for cleaning the soft material 1a of the pusher roller 1, and a cleaning nozzle Oa 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 this embodiment, by providing the cleaning nozzle lla between the pusher roller 1 and the picker roller 2, one cleaning nozzle can clean both the soft material 1a of the pusher roller 1 and the soft material 2a of the picker roller 2. This makes cleaning possible. The structure and operation of other parts of the embodiment of FIGS. 3 and 4 are similar to the embodiment of FIG. 1.

〔Effect of the invention〕

As explained above, the paper sheet feeding device of the present invention prevents damage to the soft material by providing a cleaning means that removes paper dust adhering to the soft material of the roller that feeds paper sheets in a non-contact state. This has the effect of being able to remove paper dust and reliably feed out paper sheets one by one.

1, 1 a...Cleaning nozzle.

Claims (1)

[Scope of Claims] 1. A paper sheet dispensing device that stacks a large number of paper sheets, places them in an upright position, and sequentially feeds them out one by one starting from the foremost sheet, wherein the paper sheets are a pusher roller having a first soft material that makes contact with the most forward part of the sheet and performs the feeding operation thereof; and a second soft material that makes contact with the paper sheet fed out by the pusher roller and said paper sheet. and a picker roller that performs a feeding operation of leaves, and is provided for at least one of the first soft material and the second soft material to remove paper dust attached to them in a non-contact state. A paper sheet feeding device characterized by having a cleaning device for cleaning. 2. In a paper sheet dispensing device that stacks a large number of paper sheets, places them in an upright position, and sequentially feeds them out one by one starting from the foremost sheet, A pusher roller having a first soft material in contact and performing the feeding operation thereof, and a pusher roller having a second soft material in contact with the paper sheets fed out by the pusher roller and performing the feeding operation of the paper sheets. a picker roller for cleaning, a cleaning nozzle provided for at least one of the first soft material and the second soft material, and a guide tube for sending compressed air to the cleaning nozzle. A paper sheet feeding device comprising: