JPS63295339A - Delivering device for sheet of paper - Google Patents

Abstract

PURPOSE:To securely deliver a sheet of paper regardless of its property and give a defined interval between delivered sheets of paper by providing a conveying means which deforms an endless belt from a driving delivering posture into a driven delivering posture. CONSTITUTION:As the end of a delivered sheet of paper P is caught in between the rollers 20, 21 of a conveying means 22, the sheet of paper P is pulled from the moment it is caught since the driving speed of the conveying means 22 is higher than the crawling speed of an endless belt 7. Since the downside in the rear of the delivered sheet of paper P is brought into pressure contact with the endless belt 7, the endless belt 7 is pulled together due to the friction between these, thereby, forming a sagging 7B on the front side of a rotary body 5 while following the advance of the sheet of paper P. When the sagging 7B becomes maximum, the rear end of the sheet of paper P is drawn off of the gate part 13 and the sheet of paper P is sent to a lower course side by the conveying means 22 while, on the other hand, the endless belt 7 is restored to its original condition by the drive of the driving pulley 11 of a posture holding means 8.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a paper sheet feeding device that feeds paper sheets one by one from a group of accumulated paper sheets. The present invention relates to a paper sheet feeding device that feeds out the foremost paper sheet one by one from a group of accumulated paper sheets by frictional contact.

(Prior art) Conventionally, in order to count, identify, throw out, and perform various other processing of paper sheets such as banknotes, paper sheets have been collected one by one from a group of accumulated paper sheets in which a large number of paper sheets are stored in an array. There is a sheet feeding device that takes out and conveys sheets, but these devices generally have a friction roller in frictional contact with the surface of the foremost sheet, and the rotation of this friction roller feeds out 91 sheets at a time. There is.

(Problem to be Solved by the Invention) However, in the case of the paper dispensed by the friction roller as described above, the contact portion with the paper surface is a line contact, and therefore, in the case of banknotes, new banknotes have a certain surface texture. Therefore, there is no major problem, but if the surface texture of circulating banknotes varies, such as wrinkles or creases, they may easily slip.
Feeding becomes unstable, and especially when it is necessary to pay out at regular intervals, the intervals become uneven, which causes problems in post-processing.

For this reason, conventionally, in order to provide a feeding device that needs to perform reliable feeding, a suction head is used to attract and separate paper sheets one by one, and after separation, the paper sheets are fed out by a feeding means.

However, in the case of using the above-mentioned suction head, it is necessary to make the suction head perform an oscillating motion in order to separate the paper sheets after they have been suctioned to the suction surface of the suction head.
Therefore, not only does the structure become extremely complicated, but there are also many incidental devices such as a vacuum pump, a piping system related to the vacuum pump, and a switching valve, resulting in an increase in cost. Furthermore, the suction head described above has the disadvantage that there is a limit to the speed at which paper sheets can be fed out, since the swinging movement of the suction head and the switching operation of the switching valve to create a vacuum state are inevitably involved.

In view of this, the present invention has been made with the aim of solving the above-mentioned problems of the prior art. The purpose of the present invention is to provide a paper sheet feeding device that can provide a paper sheet feeding distance of

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an apparatus for feeding out paper sheets one by one from a group of accumulated paper sheets, in which a part of the paper sheets is made freely deformable so that the outer surface of the sheet can be freely deformed. An endless belt that feeds out paper sheets by being brought into contact with the frontmost sheet surface of a group of accumulated paper sheets and forcedly moved by a belt motion applying means, and a predetermined portion of this endless belt is held between the An endless belt posture holding means that holds the belt in a driving and feeding posture, an outer surface of the endless belt, and a gate forming member, and allows only one sheet of paper fed out by the endless belt to pass through, and a sheet of paper that follows this. A gate section that regulates the feeding of leaves and a belt driven at a speed faster than the belting speed of the endless belt, which pinches and conveys paper sheets passing through the gate section, and carries the endless belt through the paper sheets. The apparatus is equipped with a conveying means for changing the position from the driven feeding position to the driven feeding position.

(Function) As a result of this, the endless belt is transformed from the driving feeding position to the driven feeding position and then returning to the driving feeding position again, so that paper sheets are fed out intermittently one by one.
The fed paper sheets are rapidly forwarded by the conveying means to create a space between them and the following paper sheets.

(Example) The present invention will be described below with reference to embodiments shown in the drawings.

In the examples, the case where the paper sheet is paper will be explained.

The illustrated embodiment shows a case in which paper sheets are stacked vertically and the lowest paper sheet is fed out one after another to one side. The leaves are stacked on the bottom plate 2 of the leaf storage section 1 and are fed out from a feeding opening 3 formed at one end of the bottom plate 2.

A notch 4 is formed in the bottom plate 2 at the center in the width direction extending from the end on the side of the feeding port 3 to near the rear end on the opposite side, and a rotating body 5 is mounted on a shaft at a position directly below the feeding port 3. The rotating body 5 is rotatably supported in one direction via a one-way clutch, and an endless belt 7 is wound around the rotating body 5.

This endless belt 7 is made of a flexible, elastic material with a large coefficient of friction such as rubber, and its width is r
The free deformation portion 7A, which extends rearward from the portion wound around the rotating body 5, has a length that extends to the vicinity of the rear end of the sheet P. In addition,
It is preferable that the width of this endless belt 7 is made as wide as possible.

An endless belt posture holding means 8 for holding the belt 7 in a predetermined posture is provided below the endless belt 7, and in the illustrated embodiment, this posture holding means 8 causes the endless belt 7 to move in the direction of the arrow. A case is shown in which the device also serves as a vibration imparting means for imparting vibration.

That is, the posture holding means 8 includes a pulley 10 located between the rotary body 5 and an intermediate rotary body 9 mounted on an axis at a distance from the rotary body 5 and bringing the endless belt 7 into contact with the intermediate rotary body 9.
and a freely deformable slack portion 7A of the endless belt 7.
a drive pulley 11 mounted on a shaft in a lower part near the rear end;
The belt 12 is wound around these pulleys 10 and 11. The lower surface of the endless belt 7 is pressed against the upper surface of this belt 12, and the freely deformable slack portion 7A is formed on the bottom plate 2 by this pressure. When there is no P and there is no pressing member, which will be described later, the bottom plate 2 maintains a position in which it should be bulged upwards from the upper surface of the bottom plate 2 as shown by the two-dot chain line in FIG. By driving in the direction, the endless belt 7 is moved in the direction of the arrow.

A gate forming member 14 that forms a gate portion 13 that allows passage of one sheet P between the outer surface of the endless belt 7 wound around the rotating body 5 is provided at the upper part of the feed opening 3. It is provided.

This gate forming member 14 may have a normal perfect circular roller structure, but in the illustrated embodiment, as shown in an enlarged view in FIG. 14A, and the part connected to the large diameter portion 14B is a concave arc-shaped surface 14C that coincides with the outer surface, that is, the outer peripheral surface, of the endless belt 7 around which the rotating body 5 is wound, and is connected to this concave arc-shaped surface 14C. Circumferential end portion 14 of large diameter portion 14B
D and the outer peripheral surface of the endless belt 7 constitute the entrance of the gate gap G, and the concave arc-shaped surface 14C and the endless belt 7 form the gate gap G.

When the peripheral end portion 14D of the large diameter portion 14B is worn out and the entrance of the gate gap G is enlarged, the gate forming member 14 is rotated slightly in the direction of the arrow, so that the new end portion 14D becomes endless. A predetermined gate entrance gap is formed opposite to the outer surface of the belt 7, that is, the outer peripheral surface. As a means for rotating the gate forming member 14, as shown in FIG. A knob 19 is provided on the shaft 18 so that the gate forming member 14 can be slightly rotated by rotating the knob 19, and means for fixing the gate forming member 14 with screws or the like is provided.

At a predetermined position spaced apart on the downstream side of the gate section 13, there are rollers 20.20, 21.21 mounted on shafts at symmetrical positions, a pair of upper and lower rollers that grip and convey the fed paper sheet P.
A conveying means 22 consisting of the following is provided.

In the figure, reference numeral 23 denotes a guide plate 24 formed by extending the lower end of the front wall IA of the sheet storing section 1 and guiding the upper surface of the sheet P.
A guide plate 25 is provided following the front end of the bottom plate 2 and guides the lower surface of the paper sheets P. A guide plate 25 is placed on the upper surface of the two groups of paper sheets stacked and stored in the paper sheet storage section 1, and is attached to the endless belt 7. This is a suppressing member that applies pressure so as to maintain the state shown by the solid line in FIG.

In the above embodiment, when performing intermittent feeding in which paper sheets P are fed out at predetermined intervals, the conveying means 2
roller 20. It is configured to drive at a driving speed of 20°21.21 times faster than the belting speed of the endless belt 7.

The effect will be explained below with reference to FIGS. 5(A) to 5(F).

As shown in FIG. 5(A), a large number of paper sheets P are arranged and stored in a stacked state in the paper sheet storage section 1, and a pressing member 25 is placed on the top surface to apply pressure. As a result, the freely deformable slack portion 7A that bulges upward from the endless belt 7 and protrudes upward from within the notch 4 of the bottom plate 2 is pushed by the lower surface of the foremost sheet P, and the lower surface of the sheet P is pushed. be placed in close contact with each other.

When the drive pulley 11 is rotated in the direction of the arrow based on the dispensing command, the pulley 10. Both belts 12 are rotated in the direction of the arrow, and the endless belt 7 is held between the pulley 10 and the intermediate rotating body 9 via the belt 12, so the endless belt 7 is moved, and the endless belt 7, the rotating body 5 and intermediate rotating body 9 are rotated in the direction of the arrow, and the rotation direction leading side of the portion of the endless belt 7 wound around the rotating body 5 (portion 7' in FIG. 5(A), In other words, since the portion of the endless belt 7 (between the rotary body 5 and the pulley 10) is pulled, the slack portion 7A is moved in the direction of the arrow in the posture shown in FIG. 5(A). .

When the endless belt 7 moves in the direction of the arrow as described above, the foremost sheet P that is in surface contact with the upper surface of the freely deformable slack portion 7A is displaced to the left in the figure due to the contact friction. The second and subsequent sheets of paper P are stopped by the gate part 13 and only one sheet is fed out from the feeding opening 3.

When the leading edge of the fed paper sheet P is caught between the rollers 20 and 21 of the conveying means 22 as shown in FIG. 5(B),
Since the driving speed of this conveying means 22 is faster than the belting speed of the endless belt 7, the paper sheet P is pulled from the moment it is gripped, and the rear lower surface of the fed paper sheet P touches the endless belt 7. Since they are pressed together, the endless belt 7 is pulled together due to the friction between them, and therefore, as shown in FIG. 5(C).
Since the slack 7B is not formed on the front side of the rotating body 5, the rotation body 5 follows the advance of the paper sheet P. At this time, the rotating body 5 is also rotating at the same speed as the endless belt 7.

As a result, when the rear end of the paper sheet P finishes passing through the gate part 13, when the paper sheet P passes through the gate part 13, when the paper sheet P comes out from under the stacked paper sheets, or when the paper sheet P is the last sheet, the paper sheet P comes out from under the suppressing section 25. Sometimes, as shown in FIG. 5(D), the freely deformable slack portion 7A is close to the intermediate rotating body 9, and the slack 7B becomes maximum.

At this stage, the trailing end of the paper sheet P is pulled out from the gate section 13 and sent to the downstream side by the conveyance means 22, while the drive pulley 11 of the posture holding means 8 is pulled out as shown in FIG.
As a result of the drive of It does not move and remains stationary, as shown in Figure 5 (
F), in other words, the state shown in FIG. 5(A) is restored.

Note that the rotating body 5 stops rotating from FIG. 5(E) to FIG. 5(F).

At this time, the previously fed paper sheet P is ready to be sent to the downstream side by the conveying means 22, and the next paper sheet P to be fed out is in the gripping position.

When the state shown in FIG. 5(F) is restored, the upper half of the endless belt 7 starts to move again in the direction of the arrow due to the rotation of the posture holding means 8, and the next paper sheet P is fed out on its upper surface. , thereafter, similar actions are repeated to sequentially feed out the blades.

Therefore, by appropriately selecting the driving speed of the conveying means 22, the feeding interval of the paper sheets P can be arbitrarily selected, and after feeding one sheet P, the endless belt 7
Since the upper half of the sheet P remains stationary until the next sheet P is fed out, intermittent feeding is ensured.

In the illustrated embodiment, the paper sheets P are stacked and stored, and the paper sheets P are fed out sequentially starting from the lowest one. For example, the paper sheet P at the forefront is fed out downward or upward.
The feeding direction is not restricted, and can be selected as appropriate depending on the application, and can be applied to other paper volumes and similar items.
Although the case has been shown in which the posture maintaining means 8 also serves as the belt motion imparting means for the endless belt 7, the posture maintaining means 8 merely displaces the freely deformable slack portion 7A of the endless belt 7 toward the sheet P side. It is also possible to provide a suppressing function and apply a belt motion to the endless belt 7 by pressing a drive roller against the position of the rotating body 5 or a portion corresponding to the intermediate rotating body 9. Further, the suppressing member 25 is not limited to a plate shape and may be a suppressing roller, and the suppressing function of the suppressing member is not limited to the example of always pressing, but when there is a large amount of stacked paper sheets, it does not press, and It is also possible to apply pressure as the amount of the pressure decreases. Further, the configurations of the gate portion 13, the conveying means 22, etc. are not limited to the illustrated embodiment, and design changes may be made arbitrarily without departing from the technical idea of the present invention.

〔Effect of the invention〕

As explained above, according to the present invention, intermittent feeding can be performed easily and accurately regardless of the properties of paper sheets, and all the drawbacks of conventional feeding devices are overcome despite the simple configuration. You can get excellent results.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view showing an embodiment of the paper sheet feeding device according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is an enlarged side view of the gate portion, and Fig. 4 is adjustment of the gate forming member. A side view showing an example of the means, and FIGS. 5(A) to 5(F) are explanatory diagrams showing the operating state. 7... Endless belt, 8... Endless belt posture holding means, 9... Intermediate rotating body constituting the endless belt posture holding means and banding motion imparting means, 10... Endless belt posture holding means and banding motion imparting means Pulley constituting the applying means, 11... Drive pulley constituting the endless belt posture holding means and belt motion imparting means, 12... Belt constituting the endless belt posture holding means and belt motion imparting means, 13... Gate part, 14... Gate forming part, 14... Gate forming member, 22... Conveyance means, P... Paper sheet. Applicant's agent Mr. Sato - Yuro 1.
Prisoner/-~ Figure 3 Figure 4 Procedure Neho LE letter (method) % formula % 1. Indication of the case 1988 Patent application No. 323339 2. Name of the invention Paper sheet feeding device 3. Person making the amendment Relationship to the case Patent applicant

Claims (1)

[Claims] In an apparatus that feeds out paper sheets one by one from a group of accumulated paper sheets, a part of the sheet is in a freely deformable state and its outer surface is brought into contact with the surface of the foremost paper sheet of the group of accumulated paper sheets, and the belt motion imparting means an endless belt that feeds paper sheets by being forced to move; an endless belt posture holding means that holds a predetermined portion of the endless belt in a driving feeding posture;
a gate portion, which is constituted by the outer surface of the endless belt and a gate forming member, and which allows only one sheet of paper fed out by the endless belt to pass through and restricts the feeding of subsequent sheets; a conveying means that is driven at a speed faster than the belting speed, grips and conveys paper sheets passing through the gate portion, and transforms the endless belt from a driving feeding posture to a driven feeding posture through the paper sheets; A paper sheet feeding device characterized in that the endless belt is transformed from a driving feeding posture to a driven feeding posture and then returning to the driving feeding posture again, thereby feeding out papers one by one intermittently. .