JPH0610057B2 - Banknote feeding device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a bill feeding device that feeds bills by separating them one by one, and particularly when the bill feeding timing is deviated, the bills are reliably fed, The present invention also relates to a bill feeding device that can reduce the torque of a drive motor.

"Prior Art" Conventionally, as a bill feeding device for separating and feeding bills one by one, there is a device as shown in Japanese Patent Publication No. 57-12787. As shown in FIG. 5 (A) and FIG. 5 (B), this device is a kick roller 5 for kicking a bill 50 to the feeding roller 8 side, and a bill 50 kicked by the kick roller 5. Is separated from the brake shoe 11 one by one and is fed out to the acceleration rollers 51, 51 side, and the peripheral surfaces of the kicking roller 5 and the feeding roller 8 are provided with high friction parts 5a, 8a. And low-friction portions 5b and 8b, the rollers 5 and 8 are interlocked in the same phase, and when the acceleration rollers 51 and 51 hold the front end side of the bill 50,
The rear end side of the banknote 50 is intended to reduce the torque of the drive motor by minimizing the frictional force received from the kick roller 5, the feeding roller 8, the brake shoe 11, and the like.

[Problems to be Solved by the Invention] However, in the above device, when the timings of the banknote 50 and the feeding roller 8 are coincident with each other (the tip of the banknote 50 and the tip of the high-friction portion 8a of the feeding roller 8 in the rotational direction). , The bills 50 can be reliably fed out one by one with a low-torque drive motor.
When the timings of 0 and the feeding roller 8 are deviated, the following problems may be considered.

1) When the bill 50 is fed out faster than the normal feeding timing (the case shown in FIG. 5 (A)), the bill 5
Although the leading end side of 0 is held by the acceleration rollers 51, 51, the rear end side of the banknote 50 is held by the brake shoe 11 and the high friction portion 8a of the feeding roller 8, so that a constant torque is maintained. Higher torque is required.

2) If the bill 50 is fed later than the normal feeding timing (the case shown in FIG. 5 (B)), the bill 5
Although the front end of 0 has not reached the acceleration rollers 51, 51, the rear end side of the banknote 50 has the brake shoe 1
Since the pinched state of 1 and the high-friction portion 8a of the feeding roller 8 is released, the feeding force of the banknote 50 suddenly decreases, and the banknote 50 stays and jams occur.

It is an object of the present invention to provide a bill feeding device that can reliably feed bills one by one without accumulating the bills with a low-torque drive motor even when the bill feeding timing is deviated.

[Means for Solving Problems] In order to achieve the above-mentioned object, the bill feeding device of the present invention feeds bills by interlocking kicking rollers and feeding rollers, and in parallel with it, a brake shoe and a feeding roller. In a banknote feeding device configured to separate the banknotes one by one at intervals that allow only one banknote to be configured, to accelerate and convey the separated banknotes by an accelerating unit, and to widen the interval between subsequent banknotes, A guide roller provided coaxially with the feeding roller,
A rotatable crimping roller that clamps the bill fed from the feeding roller and the brake shoe between the guide roller, and a portion of the bill accelerating portion in the conveying direction rearward from the point where the accelerating portion first clamps the bill. A bill 1 having a rotatable urging roller that is pressed by a spring force, and is composed of the brake shoe and the feeding roller.
The distance from the front end of the feeding direction of the interval through which only one sheet can pass to the contact point of the urging roller and the accelerating portion is equal to or more than the length of one sheet in the conveyance direction of the bill, and the contact point of the guide roller and the pressure bonding roller. The distance between the contact point of the urging roller and the accelerating unit is equal to or less than the length of one sheet in the banknote conveying direction, and the contact point of the guide roller and the pressure bonding roller causes the accelerating unit to clamp the banknote first. Is set to be equal to or longer than the length of one banknote in the banknote transport direction.

[Operation] According to the present invention, the bills are fed by the interlocking kick-out roller and feeding-out roller, and at the same time, one bill is formed one by one at an interval in which only one bill made up of the feeding roller and the brake shoe can pass. The separated bills are sandwiched between a feeding roller, a guide roller on the same axis as the feeding roller, and a rotatable crimping roller to be sent out, and the bills sent out by a rotatable urging roller abutting against a part of the accelerating section are separated. The banknote is guided to the accelerating section, and the banknote is held between the accelerating section and accelerated to be conveyed to widen the interval between the banknote and the succeeding banknote.

Moreover, since the guide roller and the pressure bonding roller immediately sandwich and convey the bills which are separated and separated from the interval at which only one bill constituted by the brake shoe and the supply roller can pass, for example, the normal supply timing. Even when the bill is fed out later than the bill feeding force of the bill feeding roller is rapidly reduced, the bill can be reliably fed forward. At this time, the pressure roller and the guide roller rotate at the same speed as the feeding roller, so that the drive motor is not overloaded.

Next, when the tip of the bill sent to the pressure roller and the guide roller reaches the contact point of the urging roller and the acceleration unit, the rear end of the bill has only one bill composed of the brake shoe and the feeding roller. The drive motor is barely loaded because it finishes passing through the intervals that can pass.

Further, when the bills are fed out and the leading end side is sandwiched between the contact points of the urging roller and the accelerating section and the rear end side is held between the contact points of the guide roller and the pressure bonding roller, the urging roller contacts the accelerating section by the spring. Therefore, when compared with the pressure roller, the control power over the banknote is weak. Therefore, the bill is pulled between the urging roller and the pressure roller, but is controlled by the pressure roller to be fed out at the same speed as the feeding roller side. At this time, slippage occurs between the acceleration unit and the bill on the biasing roller side, so the speed difference between the feeding side and the acceleration unit side is absorbed, and the load on the drive motor is slightly (the brake shoe and the feeding roller are Load smaller than the load that the drive motor receives when frictionally separating.). The urging roller rotates at the same speed as the bill while the bill is being controlled by the feeding force of the pressure roller.

Next, the bill whose rear end has passed through the contact points of the guide roller and the pressure roller is governed by the feeding force on the biasing roller side, so that the transport speed is accelerated and taken into the accelerating section side.
When the accelerating unit first grips the front end of the bill, the rear end of the bill has finished passing through the contact points of the guide roller and the pressure roller, so that the drive motor is hardly loaded.

[Example] An example of the present invention will be described with reference to Figs. It should be noted that the same members as those in the related art will be described with the same reference numerals.

FIG. 1 is a view showing a bill feeding device 1 and a side surface thereof, and the bill feeding device 1 is composed of two units. The unit on the left side of FIG. 1 is a feeding unit 2, which has a function of feeding the banknotes inserted in the stacked state while separating them one by one. The unit on the right side of FIG. 1 is the transport unit 3, which has a function of accelerating the banknotes delivered one by one from the delivery unit 2 and delivering them. By accelerating the bills by the transport unit 3, the gap between the bills and the succeeding bills is widened to prepare for the discrimination process to be performed next and the sorting process based on the discrimination result.

First, the structure of the feeding unit 2 will be described. Reference numeral 4 is a loading unit, and a bottom surface thereof is formed by an inclined plate 4'with the feeding side facing downward so that stacked bills can be kicked out easily. The inclined plate 4'is provided with a notch (not shown), and a kick roller 5 for protruding and retracting only the high-friction portion 5a which is a part of the peripheral surface from the notch to the inclined plate 4'is provided. A plurality of them are fixed on the shaft 6. A feeding roller 8 is fixed to the shaft 7, and a plurality of guide rollers 9 made of a material having a low friction coefficient are fixed on the left and right of the shaft 7 around the feeding roller 8 (second one). See figure). The shafts 6 and 7 are timing belts and timing pulleys (not shown).
And so on.

The peripheral surfaces of the kick roller 5 and the feeding roller 8 are composed of high friction portions 5a and 8a and low friction portions 5b and 8b as in the conventional case, and the high friction portions 5a and 8a have low radii.
It is set to be larger than the radii of b and 8b.
The radius of the guide roller 9 is set to be the same as the radius of the high friction portion 8a of the feeding roller 8. The shaft 7
A flange 10 is fixed on the upper side and on both sides of the feeding roller 8 to prevent a large number of banknotes from entering. The flange 10 has a radius on the low friction part 8b side of the feeding roller 8 that of the feeding roller 8. The radius is the same as that on the high friction portion 8a side, and on the high friction portion 8 side, the diameter is set to be smaller than the radius, and the low friction portion 8b of the feeding roller 8 is the shoe portion 11 'side of the brake shoe 11 described later. It is designed to prevent a large number of banknotes from entering when facing each other.

The brake shoe 11 is formed such that its shoe portion 11 ′ is along the outer periphery of the feeding roller 8, is arranged at a position where it is always in non-contact with the feeding roller 8, and its position is adjusted by a position adjusting mechanism (not shown). ), Axis 12
It is mainly done in. Therefore, since the brake shoe 11 swings around the shaft 12, the adjustment interval with the feeding roller 8 is wide in the front in the feeding direction (around two or three bills) and narrow in the rear in the feeding direction (only one bill passes). It is set). That is, the friction separating effect actually acts on the banknote from the point A where the shoe portion 11 ′ of the brake shoe 11 and the high friction portion 8a of the feeding roller 8 maintain an interval through which only one banknote can pass. It has a function of guiding bills from point B to point F (see FIG. 3).

The shaft 13 is located further forward than the brake shoe 11 in the feeding direction.
A plurality of pressure-bonding rollers 14 that are rotatably supported on the entire circumference and are formed of a member having high friction are provided corresponding to the guide rollers 9 (see FIG. 2).
The bills fed between the brake shoes 11 and the guide rollers 9 are immediately sandwiched and fed out. A shaft 15 is provided below the shaft 13, and a link 16 is provided on the shaft 15 so as to be rotatable and urged counterclockwise in FIG. 1 by a spring (not shown). At the tip of this link 16, via a shaft 17,
A biasing roller 18 whose entire circumference is formed of a member with high friction
Is rotatably provided, and the urging roller 18 is provided at one end of the upper conveyance belt 20 in the conveyance unit 3 when the feeding unit 2 and the conveyance unit 3 described later are combined (the state shown in FIG. 1). The bills brought into contact with each other and fed out are guided to the transport unit 3 side.

Next, the configuration of the transport unit 3 will be described.

The upper conveyor belt 20 includes pulleys 20a, 20b, 20c.
And the lower conveyor belt 21 includes pulleys 21a, 21
It is stretched to b and 21c respectively. Above these,
The lower conveyor belts 20 and 21 are driven at the same speed, and the speed is set so as to accelerate the speed of the bills fed from the feeding unit 2 by about 1.4 to 1.5 times. Further, since the upper conveyance belt 20 can rotate in the clockwise direction about the pulley shaft 22 at one end (shown by the alternate long and short dash line in FIG. 1), even if a jam failure occurs in the conveyance unit 3, it immediately occurs. The jam banknote can be removed. Although not shown, the discrimination device may be provided in the transport unit 3.

The contact point between the pressure roller 14 and the guide roller 9 is point C,
The contact point between the urging roller 18 and the upper conveyance belt 20 is set to D
If point E is the point at which the upper side transport belt 20 and the lower side transport belt 21 first hold a banknote (first point)
(See the drawing), the intervals between the respective members including the point B on the feeding roller 8 side and the brake shoe 11 side are as follows. However, the bill is based on the length in the transport direction. Then, in the case of the present embodiment, since the long side of the bill is conveyed toward the front in the conveying direction, the above-mentioned "length in the conveying direction of the bill" is the short side of the bill (that is, the width). The length in the direction) is the standard.

From B point to D point 1 or more banknotes.

No more than one banknote from point C to point D.

One or more banknotes from point C to point E.

Next, the operation of the bill feeding device 1 will be described.

The bill sent out by the carry-out roller 5 and the pay-out roller 8 has a high friction portion 8 between the brake shoe 11 and the pay-out roller 8.
It enters an interval (between points A and B) through which only one banknote formed by a and can pass. At this time, the load applied to the drive motor becomes maximum (torque T1) (time point S1 in FIG. 4). The maximum torque T1 drops when the trailing end of the bill to be fed out has passed the friction separation interval (between points A and B) (time S2 in FIG. 4). The banknotes separated into one sheet by the interval (between points A and B) and further guided between the feeding roller 8 and the brake shoe 11 (between points B and F) are next guided by the guide roller 9 and the pressure bonding roller 14. It is held (at point C) and sent to the urging roller 18 side. At this time, even if the bill is fed out later than the feeding timing and the feeding force of the bill by the high friction portion 8a of the feeding roller 8 and the brake shoe 11 is lost, the bill is held by the pressure roller 14 and the guide roller 9. Since the bills are sent out, it is possible to prevent the banknotes from accumulating, which is a conventional problem. In addition, the guide roller 9 and the pressure roller 1
Since No. 4 rotates at the same speed as the feeding roller 8, no load is applied to the drive motor.

The urging roller 18 presses the banknotes from the guide roller 9 and the pressure roller 14 toward the upper transport belt 20 (D
(At points) while guiding between the upper and lower conveyor belts 20 and 21. When the tip of the bill reaches the point D of the urging roller 18, since the point B-D is one or more bills as described above, the bill is separated between the friction separating side and the bill accelerating (conveying belt) side as in the conventional case. There is no pull. Therefore, a torque equal to or higher than the torque T1 required at the time of frictional separation of banknotes is not required. Further, since the biasing roller 18 is in contact with the upper conveyance belt 20 by a spring (not shown),
When compared with the pressure roller 14 supported by the shaft 13, the biasing roller 18 has a weaker control over the bill than the pressure roller 14. Therefore, the banknotes located between the pressure roller 14 and the urging roller 18 (between the points C and D) are controlled by the pressure roller 14 and conveyed while being pulled by the rollers 14 and 18. Therefore, the urging roller 18 is pressed by the pressing roller 14 by the banknote spring whose feed force is controlled, so that the pressing roller 14 rotates at the same speed as the banknote, that is, at the same speed as the pressing roller 14.
At this time, the banknotes and the upper conveyor belt 2 on the urging roller 18 side.
Since slippage occurs between 0 and the
A torque T1 'smaller than 1 is generated (Fig. 4, S3 ~).
S4).

When the trailing edge of the bill passes the contact point (point C) of the pressure roller 14 and the guide roller 9, the bill is governed by the feeding force of the biasing roller 18, so the bill transport speed is immediately accelerated. become. At this time, the contact point (point C) of the pressure roller 14 and the guide roller 9 and the upper and lower conveyor belts 2
Since the interval between the holding start point (point E) of 0 and 21 is set to one or more banknotes as described above, the banknotes are not pulled between the points C and E, and the torque is after the banknote to be sent out. When the end passes through the point C (time point S4 in FIG. 4), it descends and becomes T0. The banknotes whose transportation speed is accelerated by the urging roller 18, the upper conveyor belt 20, and the lower conveyor belt 21 are conveyed while widening the gap between the succeeding banknotes, and a predetermined processing such as a discrimination processing is performed. Will be done.

The above operation may be continuously performed for the succeeding banknotes, and the torque of the drive motor itself becomes similar after the time point S5 in FIG.

In this embodiment, the kick roller 5 and the feeding roller 8 are used.
However, the diameter is not limited to this, and the diameter may be the same as that of the feeding roller 8, for example.

Further, the brake shoe 11 is in front of the portion (between points A and B) that actually performs the friction separating action of the banknote in the feeding direction (B-
The part between points F) was also formed as the shoe part 11 ',
The present invention is not limited to this, and for example, a part of the shoe portion (B-
A curved member made of a material having a low wear coefficient that conforms to the shape of the brake shoe may be attached between the points F).

Further, although the accelerating section is composed of the endless belts 20 and 21, it is needless to say that the accelerating section may be composed of only a plurality of rollers without being limited to this.

[Advantages of the Invention] As described above, according to the present invention, a bill is fed by the interlocking kicking roller and feeding roller, and in parallel with this, only one bill made up of the feeding roller and the brake shoe can pass. Separates the banknotes one by one according to the interval,
The separated bills, a guide roller coaxial with the feeding roller, and a rotatable crimping roller are sandwiched between the bills and fed out, and the bills fed out by a rotatable biasing roller abutting a part of the acceleration unit are guided to the acceleration unit. Then, the banknote is held by an accelerating unit and accelerated to be conveyed so as to widen the interval between the banknote and the succeeding banknote, and the biasing roller and the acceleration are applied from the front end of the separating direction composed of the brake shoe and the payout roller in the payout direction. The distance between the contact point of the banknote and the length of one banknote in the transport direction of the banknote, and the interval from the contact point of the guide roller and the pressure contact roller to the contact point of the urging roller and the acceleration section are in the banknote transport direction. Below the length of one sheet in
Furthermore, since the interval from the contact point of the guide roller and the pressure contact roller to the banknote holding start point of the accelerating unit is set to be equal to or more than the length of one sheet in the banknote transport direction, the banknotes on the feeding side and the accelerating unit side are set. Even when the banknote is pulled, the load on the drive motor can be made smaller than the load on the banknote friction separation due to the slip between the banknote on the biasing roller side and the accelerating section. Can be used, and the bill feeding device itself can be made compact.

In addition, for example, even when the feeding force of the bill by the feeding roller is suddenly reduced by feeding the bill later than the normal feeding timing, the pressing roller and the guide roller coaxial with the feeding roller sandwich the bill to urge the roller side. Since it is sent out to, the banknotes are not accumulated and jams are not generated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to FIG. 4 are views showing an embodiment of the present invention, FIG. 1 is a side view of a bill feeding device, and FIG. 2 is a line XX in FIG. Fig. 3 is an enlarged side view of the feeding roller and the brake shoe, Fig. 4 is a torque diagram of the drive motor, and Figs. 5 (A) and 5 (B) are operation explanatory views of the prior art.
FIG. 5 (A) shows the case where the bills are delivered earlier than the normal delivery timing, and FIG. 5 (B) shows the case where the bills are delivered later than the normal delivery timing. 5 ... Kicking roller, 8 ... Feeding roller, 11 ... Brake shoe, 14 ... Crimping roller, 18 ... Energizing roller, 20 ... Upper conveyor belt, 21 ... Lower conveyor belt.

Claims (1)

[Claims] 1. A bill is fed by an interlocking kicking roller and feeding roller, and in parallel with that, the bills are separated one by one at an interval in which only one bill composed of a brake shoe and a feeding roller can pass. , A bill feeding device that accelerates and conveys the separated bill by an accelerating unit and widens a distance between the bill and a succeeding bill, and a guide roller provided coaxially with the feeding roller,
A rotatable crimping roller that clamps the bill fed from the feeding roller and the brake shoe between the guide roller, and a portion of the bill accelerating portion in the conveying direction behind the point where the accelerating unit first clamps the bill. A bill 1 having a rotatable urging roller that is pressed by a spring force, and is composed of the brake shoe and the feeding roller.
The distance from the front end of the feeding direction of the interval through which only one sheet can pass to the contact point of the urging roller and the accelerating portion is equal to or more than the length of one sheet in the conveyance direction of the bill, and the contact point of the guide roller and the pressure bonding roller. The distance between the contact point of the urging roller and the accelerating unit is equal to or less than the length of one sheet in the banknote conveying direction, and the contact point of the guide roller and the pressure bonding roller causes the accelerating unit to clamp the banknote first. Is set to a length equal to or longer than the length of one banknote in the banknote transport direction, respectively.