JPS61295934A - Take-out device for paper sheet - Google Patents

Abstract

PURPOSE:To surely separate stacked paper sheets from each other, by providing a back-up position detector to control the stopping position of a back-up, and by providing an air nozzle and a jet detecting sensor at opposing sides of paper sheets, respectively. CONSTITUTION:A band notes P are raised together with a back-up 1 in response to an instruction for taking up bank notes, and a position detecting lever 11 is actuated so that a position sensor 12 stops the back-up 1, Further, there is provided, at one side of stacked bank notes P, an air nozzle 21 which jets air when the back-up 1 comes to a stop. Air having passed through gaps among the stacked layers of the bank notes P is detected by a jet detecting sensor positioned at the opposite side of the stacked bank notes P. At this time, if a deformed bank note P is present at the topmost layer, the back-up 1 makes in close contact with a take-out roll 4, excessively so that the gaps between the stacked bank notes P are closed to block air. Therefore, the back-up descends to release its excessive close contact condition, thereby the topmost layer bank note P may be surely separated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a paper sheet take-out device that sequentially takes out a large number of stacked paper sheets such as banknotes and securities one by one.

[Technical background of the invention and its problems]

This type of withdrawal device is installed in automatic teller machines installed in bank stores, etc., and its conventional configuration is shown in FIG.
A large number of paper sheets, for example, banknotes P, are stacked and placed horizontally on the upper surface of the paper. This backup 1 is the drive motor 2
It is connected to a belt 3 that moves in conjunction with the belt 3, and is raised and lowered in accordance with the running movement of the belt 3. A cylindrical take-out rotor 4 is provided above the backup 1, and a suction chip 5 made of rubber or the like with a large frictional force is attached to a part of the outer peripheral surface of the take-out rotor 4. A plurality of small holes 6 are bored throughout the inside of the holder 4, thereby forming a suction section 7. A vacuum air chamber 8 communicating with a vacuum air pump (not shown) is provided inside the take-out rotor 4, and when the take-out rotor 4 rotates in the direction of the arrow, the suction unit 7 moves into the vacuum air chamber 8.
By facing the opening 8a of the banknote P, vacuum force acts on the suction part 7 through each small hole 6...
is sucked by the suction section 7.

A conveyance path 10 is provided on one side of the take-out rotor 4, a position detection lever 11 is provided on the other side facing the banknote P, and a position detection sensor 12 is provided adjacent to the position detection lever 11. It is being

The position detection lever 11 is rotatably supported via a bin 13, and the position detection sensor 12 detects its rotational movement. In addition, 15 is a side wall that guides the raising and lowering of the banknote P.

When a command to take out the banknote P is input, the drive motor 2 is driven, and the banknote P rises together with the backup 1. When the top layer of the banknote P reaches a position close to the takeout roll 4, this The top layer of the banknote P contacts the position detection lever 11, the position detection lever 11 rotates, this movement is detected by the position detection sensor 12, and depending on this detection, the backup 1 stops rising or slows down. , and in some cases it is controlled to fall slightly. Then, as the take-out roll 4 rotates, the uppermost banknote P is attracted to the suction unit 7 and taken out, and is fed into the conveyance path 10 and conveyed to a predetermined location. In this way, the bills P are taken out one by one, and when the number reaches several, the position of the top layer of bills P placed on the backup 1 is lowered, so that the position detection lever 11 returns to its original state. Based on this, the backup 1 is raised again, and by repeating such an operation, the removal of banknotes P placed on the backup 1 is continued one after another.

Here, there is no particular problem if all the banknotes P are smooth and flat, but for example, as shown in FIG.
If there is a banknote P that has a habit of deforming into a curved shape, the timing at which the topmost banknote P contacts the position detection lever 11 is shifted, causing a delay in controlling the rise of the backup 1, and as a result, the banknote P There is a problem in that the bill P comes in too close contact with the take-out roller 4, resulting in failure to take out the banknote P, occurrence of double-sheet taking, and further damage to the suction chip 5.

[Purpose of the invention]

This invention was made with attention to these points, and its purpose is to prevent paper sheets from coming into excessive contact with the take-out roll due to deformation of the paper sheets. To provide a paper sheet take-out device which can quickly release the adhesion state and prevent failure of paper sheet take-out, occurrence of double-sheet pick-up, and damage to a suction tip. There is a particular thing.

[Summary of the invention]

That is, in this invention, a take-out roll is provided on one side of a backup that supports and moves stacked paper sheets, and as the backup moves, the outermost layer of the paper sheets reaches a position close to the take-out roll. In a system in which the movement of the backup is controlled by detecting this with a position detection means, and the paper sheets of the outermost layer are taken out one by one by rotation of the take-out roll under such conditions, the above-mentioned paper sheets are A gap detection means is provided to detect the presence or amount of a gap between the stacks, and the gap between the stacks is closed or reduced due to deformation of the paper sheets, which causes the paper sheets to adhere excessively to the take-out roll. At this time, this is detected by the gap detection means, and based on this detection, the backup operation is controlled to release the paper sheets from close contact.

(Embodiments of the invention) Examples of the invention will be described below with reference to the drawings. In each embodiment, parts corresponding to the conventional configuration are given the same reference numerals in the drawings, explanations thereof are omitted, and only different parts will be described.

First, a first embodiment is shown in FIGS. 1 to 3, and a side wall 15 that guides the raising and lowering of banknotes P is provided with a side wall 15 that guides the raising and lowering of banknotes P. roll 4
Air blowout hole 20$ in the part that deviates to the side where
An air nozzle 21 is provided opposite the air blowing hole 20 . This air nozzle 21 communicates with an air blowing pump 24 via a hose 23 having an on-off valve 22 in the middle. A blowout detection lever 25 is provided on the opposite side of the air nozzle 21 so as to face the air nozzle 21 across the banknote P.
Further, a blowout detection sensor 26 is provided adjacent to the blowout detection lever 25. The blowout detection sensor 26 is rotatably supported via a bottle 27, and the blowout detection sensor 26 detects the rotational movement.

On the other hand, near the entrance side of the conveyance path 10, a passage detection sensor 28 for detecting passage of banknotes P is provided.

When a command to take out the banknote P is input, the banknote P rises together with the backup 1 in the same way as described above, the top layer of banknotes P approaches the takeout roll 4, and the position of this top layer of banknotes P is detected. The position detection lever 11 rotates when it comes into contact with the lever 11, and this movement is detected by the position detection sensor 1.
2 detects.

Then, in response to this detection, the backup 1 is controlled to stop rising, or to slow down, and further to be slightly lowered depending on the case, and at the same time, the opening/closing valve 22 is opened. The air nozzle 2 is opened by opening the on-off valve 22.
Air is blown out from 1, this air passes between the stacks of banknotes P and hits the blowout detection lever 25, and accordingly the blowout detection lever 25 rotates, and this movement is detected by the blowout detection sensor 26. .

As the top layer of banknotes P approaches the take-out roll 4,
As the take-out roll 4 rotates, the top layer of banknotes P is attracted to the suction unit 7 and taken out, and is fed into the conveyance path 10.

Here, if a banknote P that has a tendency to deform into a curved shape is placed on the backup 1, for example, the banknote P will come into close contact with the take-out roll 4 due to the deformation as described above. However, in response to this close contact, the stacked banknotes P are compressed and the gap between the stacks is closed, and accordingly, the blowing of air to the blowout detection lever 25 is cut off. This is detected by the blowout detection sensor 26. Then, upon this detection, the backup 1 is immediately
is controlled to stop or descend. As a result, the excessive adhesion of the banknotes P to the take-out roll 4 is released, and as a result, the top layer of banknotes P can be properly transferred to the take-out roll 4.
It is adsorbed to the suction unit 7 and taken out, and sent to the conveyance path 10. A passage detection sensor 28 detects the passage of this banknote P.
Based on this detection, the backup 1 is controlled to stop descending to return to the initial state, or the air blown from the air nozzle 21 passes between the stacks of banknotes P and the blowout detection lever 25 The backup 1 is controlled to continue descending until it acts on the original state, and in this way, even if there is a peculiar banknote P, it is possible to always smoothly take out the banknotes one by one. In addition, damage to the suction chip 5 can be prevented.

Air may be blown out from the air nozzle 21 before the top layer of the banknote P comes into contact with the position detection lever 11, but in this case, the banknote P will dance under the blowing pressure while the banknote P is rising. Therefore, as in this embodiment, when the top layer of the banknote P comes into contact with the position detection lever 11 and is detected by the position detection sensor 12, the blowing of air is started based on that signal. It is preferable to do so. However, if the banknote P is deformed, the banknote P may come into excessive contact with the take-out roll 4 before the top layer contacts the position detection lever 11. , banknote P
It is preferable to start blowing out air midway through the rise of the air.

FIG. 4 shows a second embodiment of the present invention, in which the opening at the tip of the air nozzle 21 is shaped like a long hole extending along the stacking direction of the banknotes P. By configuring it in this way,
By increasing the amount of air passing between the stacks of banknotes P, the blowout detection lever 25 can be operated accurately. and,
By tapering the tip of the air nozzle 21,
It is possible to increase the air blowing pressure.

FIG. 5 shows a third embodiment of the present invention, in which the oldness of the gap between the stacks of banknotes P is detected by optical means and the backup 1
In other words, a light emitting element 21a is placed on one side of the banknotes P arranged in a stacked state.
Similarly, light receiving elements 25a are provided on the other side, and if there is a gap between stacks of banknotes P, the light emitting elements 21
Let the light a enter the light receiving element 25a through the gap,
When the bill P is too closely attached to the take-out roll 4 and the gap is reduced, the incidence of light to the light receiving element 25a is narrowed based on this, and thereby the amount of the gap between stacks of bills P is detected. As shown in FIG. 6, the operation of the backup 1 is controlled according to the amount of incident light.

Note that in each of the above embodiments, banknotes are used as examples of paper sheets, but it goes without saying that other paper sheets such as securities may also be used.

〔Effect of the invention〕

As explained above, according to the present invention, when paper sheets come into excessive contact with the take-out roll due to deformation of the paper sheets, the Since the close contact is detected and the backup operation is controlled according to this detection, the close contact of paper sheets to the take-out roll is immediately released, preventing problems with take-out, double-sheet picking, and even adsorption. This has the effect of preventing damage to the chip.

[Brief explanation of drawings]

FIG. 1 is a side view showing a first embodiment of the invention, FIG. 2 is a front view, FIG. 3 is a front view for explaining the operation, and FIG. 4 is a second embodiment of the invention. FIG. 5 is a side view showing an example; FIG. 5 is a front view showing a third embodiment of the present invention; FIG.
The figure is a graph showing the relationship between the amount of incident light and the backup operation in the same embodiment, FIG. 7 is a side view showing the conventional device, and FIG. 8 is a side view during operation. 1... Backup, 4... Take-out roll, 11...
・Position detection lever, 21...Air nozzle, 25...
・Blowout detection lever, 21a...Light emitting element, 25a...
·Light receiving element.

Claims (6)

[Claims] (1) A take-out roll is provided on one side of a backup that supports and moves stacked paper sheets, and when the back-up moves, the end layer of the paper sheets reaches a position close to the take-out roll. In a system in which the movement of the backup is controlled by detecting this with a position detection means, and the sheets of the outermost layer are taken out one by one by rotation of the take-out roll under such conditions, the distance between the stacks of sheets is A gap detection means is provided to detect the presence or absence of a gap or the amount of a gap. A paper sheet retrieval device characterized in that this is detected by the gap detection means, and based on this detection, a backup operation is controlled to release the paper sheets from close contact. (2) Based on the detection by the gap detection means, the adhesion of the paper sheets is released, and the control of the backup operation is not released until the removal of the first paper sheet is achieved by this release. A paper sheet take-out device according to claim 1. (3) The gap detection means is provided with an air nozzle on one side of the stacked paper sheets, and detects when the air blown from the air nozzle passes through the gap between the stacks of paper sheets on the other side. 3. The paper sheet take-out device according to claim 1 or claim 2, further comprising a blowout detection lever that operates with the blowout pressure. (4) The paper sheet take-out device according to claim 3, wherein the air nozzle does not start blowing air until the endmost layer of the paper sheets approaches the take-out roll. (5) The paper sheet according to claim 3 or 4, characterized in that the air nozzle is provided in a portion facing the side surface of the paper sheet and deviated toward the side where the take-out roll is arranged. extraction device. (6) Paper sheets according to claim 3, 4, or 5, characterized in that the opening at the tip of the air nozzle is formed in the shape of a long hole along the stacking direction of the paper sheets. type of extraction device.