JPH11116072A - Paper sheet supply device, and paper sheet inspecting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper sheet supply device in which paper sheets can be securely fed one by one in order, and a paper sheet inspecting machine in which this device is incorporated as a marking card supply device. SOLUTION: A paper sheet inspecting machine comprises a card supply device 28 to supply marking cards for every specified number of paper sheets after inspection carried by a carrying device. The card supply device 28 comprises a backup plate 36 on which plural marking cards are mounted, and a feed roller 52 disposed above it to feed the cards one by one by rotation. The backup plate 36 is energized upward by a tension coil spring, so an upper surface of the card gets in contact with the feed roller 52 under pressure. A spring constant of the spring is set in such a way that the pressure is kept constant regardless of change of the number of cards loaded on the backup plate 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for feeding paper sheets and an apparatus for inspecting paper sheets for securities and the like incorporating the apparatus as a supply apparatus for a mark card.

[0002]

2. Description of the Related Art A sheet feeding apparatus is incorporated in various places in an inspection machine for inspecting and sorting sheets such as securities. For example, a card (sheet) supply device is used to supply one mark card at a time for each predetermined number of sheets to which sheets after inspection and sorting are stacked for each sorting type.

A conventional card supply device of this type is a mounting table or backup plate for stacking a large number of cards in a stack, and an opening formed under the backup plate and formed in the backup plate. And a feed roller disposed so as to contact the lower surface of the lowermost card via the portion. That is, in this structure, the lowermost card is pressed against the feed roller by the mountain load of the cards stacked on the backup plate. At the time of card supply, the lowermost card is sent out by the feed roller using the frictional force obtained by the pressing force.

[0004]

In the above conventional card feeding apparatus, the frictional force between the lowermost card and the feed roller changes depending on the number of cards loaded on the backup plate, There is a problem that the sending ability of the card changes.

[0005] For example, when the number of cards loaded is large and the frictional force is large, the torque required for sending out the cards becomes large, so that an excessive load is applied to the motor. In addition, there is a high possibility that a so-called double feed occurs in which not only the lowest card to be sent but also the card above it is sent. Conversely, when the number of loaded cards is small and the frictional force is small, the feed roller may run idle and the card cannot be sent out.

[0006] Such a problem occurs not only in the card supply device but also in the paper sheet supply device having the above structure as a common problem. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has high versatility in which sheets can be sent out one sheet at a time without any double feed of sheets or idle rotation of a feed roller. A leaf supply device,
It is an object of the present invention to provide a paper sheet inspection machine for securities and the like in which the apparatus is incorporated as a supply device for a mark card.

[0007]

SUMMARY OF THE INVENTION A first aspect of the present invention is as follows.
In the paper sheet feeding device, a mounting table for stacking a plurality of paper sheets and a feed roller disposed above the mounting table and configured to rotate and send out the paper sheets one by one. A drive motor for rotationally driving the feed roller, an urging means for bringing the upper surface of the paper sheet on the mounting table into contact with the feed roller with a pressing force, and a rotation of the feed roller. A transport unit for receiving and transporting one of the paper sheets sent from the mounting table, wherein the pressing unit is irrespective of a change in the number of stacked paper sheets on the mounting table. It is characterized in that the pressure is kept constant.

According to a second aspect of the present invention, in the paper sheet feeding apparatus according to the first aspect, the urging means comprises a spring for applying an upward urging force to the table, and a spring constant of the spring. (N / m) is k, the weight (kg) of one sheet of the paper sheet is w, and the thickness (m) of one sheet of the paper sheet is Δ
x, the spring constant of the spring is k = w / Δx
Is set to satisfy the following.

According to a third aspect of the present invention, in the paper sheet feeding apparatus according to the second aspect, the spring is a tension coil spring. According to a fourth aspect of the present invention, in a sheet inspection machine, a supply device for sending sheets one by one, and an inspection device for inspecting the sheets sent from the supply device, A transport device for transporting the paper sheets while separating the paper sheets based on an inspection result by the inspection device, and a stacking device for stacking a separated type of the paper sheets transported by the transport device. And a card supply device for supplying a predetermined number of mark cards to the sheets stacked on the stacking device, wherein the card supply device includes a plurality of mark cards. A mounting table for stacking the cards, a feed roller disposed above the mounting table, for sending the cards one by one by rotation, and a drive motor for rotating the feed roller. Said above on the mounting table Urging means for bringing the upper surface of the card into contact with the feed roller with a pressing force; and a transport unit for receiving and transporting one of the cards sent from the mounting table by rotation of the feed roller. Wherein the pressing force is maintained constant irrespective of a change in the number of stacked cards on the mounting table.

According to a fifth aspect of the present invention, in the paper sheet inspecting machine according to the fourth aspect, the urging means comprises a spring for applying an upward urging force to the mounting table, and a spring constant of the spring. (N / m) is k, the weight (kg) of one card is w, and the thickness (m) of one card is Δx
Wherein the spring constant of the spring is set to satisfy k = w / Δx.

According to a sixth aspect of the present invention, in the paper sheet inspecting machine according to the fifth aspect, the spring is a tension coil spring. According to the present invention, regardless of a change in the number of stacked sheets, the sheet and the feed roller are always pressed with a constant pressing force. The possibility that idle rotation of the feed roller occurs is reduced, and it is possible to reliably send out sheets one by one.

The above operation can be obtained with a simple structure by using a tension coil spring as a means for applying a biasing force for pressing the paper sheet against the feed roller via the mounting table.

[0013]

FIG. 2 is a schematic view showing an entire security (sheet) inspection machine 10 incorporating a sheet supply apparatus according to an embodiment of the present invention as a supply apparatus for a mark card. It is. The securities inspection machine 10 has a function of taking out, inspecting, sorting, counting, and accumulating securities as paper sheets one by one, and binding them by a band, for example, every 100 sheets. . More specifically, the inspection machine 1
0 is configured so that a predetermined number of securities, for example, 1000 securities can be processed as one unit. 1 at the right end of the inspection machine
An input device 12 is provided for automatically and sequentially inputting 000 securities in a lump in a loaded state.

The inspection machine 10 has a supply device 14 on the side adjacent to the input device 12 for taking out securities from the input device 12 one by one. The supply device 14 includes a suction rotary roller 14a. The suction rotary roller takes out the securities P one by one from the input device 12 at a predetermined pitch and transfers it to the transport device 16.

The transport device 16 is composed of a plurality of transport belts, drive pulleys, drive motors, etc., which are disposed along a predetermined transport path 17 for transporting the securities taken out. While the securities are being conveyed by the conveyance device 16, information such as a pattern, a dimension, and a conveyance pitch is detected from the securities by the inspection determination device 18.

The inspection discriminating device 18 has a stacking detecting section for detecting stacking of securities being transported, a reading section for reading a pattern attached to the securities, a counting section for counting the number of securities, and the like. , Are arranged in order along the transport path 17. According to the detection result, the inspection determination device 18 determines the securities as a plurality of types, that is, genuine, reusable, genuinely soiled, non-reusable, or unrecognizable rejected securities. I do.

In accordance with the discrimination result of the inspection discriminating device 18, the transporting device 16 sorts the securities by selecting the transport direction of the securities in the sorting section 20. More specifically, the transport device 16 transports a genuine bill to the stacking unit 24, a damaged banknote to the stacking unit 25, and a rejected banknote to the stacking unit 26, respectively.

The stacking section 24 for genuine bills has two binding devices 24a and 24b corresponding to the types of securities, in order to stack and bundle 100 pieces of sorted securities. Below the binding devices 24a and 24b, a transport device 22 that transports the bound bundle is provided. The bound bundle is transported by the transport device 22 to the large bundle binding unit 21, where the bundle is bound by a predetermined number of bundles, for example, 10 bundles by a large band. The large bundle is thereafter discharged to a predetermined portion by the discharge device 15.

The rejected ticket accumulating unit 26 includes an accumulating device 27
A card supply device 28 is provided adjacent to the server to supply one card serving as a mark for each predetermined number of securities to be accumulated.

FIG. 1 is a perspective view showing a card supply device 28, that is, a paper sheet supply device according to an embodiment of the present invention.
The card supply device 28 has a card case 32 for storing a large number of mark cards. Card case 3
The second side plate 33 is fixed to the support frame 31 and the top plate 34
Is fixed to the side plate 33. On the other hand, the bottom plate of the card case 32 functioning as a mounting table for mounting cards in a stacked manner, that is, a backup plate 36, is supported by the support frame 31 so as to be vertically movable.

FIG. 3 is a perspective view extracting and showing the relationship between the support frame 31 of the card supply device 28 and the backup plate 36. As shown in FIG. 3, the backup plate 36 is fixed to the slider 41, and the slider 41 is
1 is attached to a linear guide rail 42 disposed vertically on the top so as to be slidable in the vertical direction.

A biasing means, that is, a tension coil spring 44 is stretched between the support frame 31 and the backup plate 36. One end of the spring 44 is hooked on a pin 45 below the support frame 31, and the other end is hooked on the backup plate 36, with the intermediate portion folded back by a guide pin 46 on the top of the support frame 31. The spring 44 is designed to satisfy specific conditions as described below.

A feed roller 52 is horizontally supported by the support frame 31 so as to be located above the card case 32. The lower part of the feed roller 52 enters the card case 32 from an opening 35 formed in the top plate 34 of the card case 32. Therefore, the lower portion of the feed roller 52 is pressed by the backup plate 3 under the urging force of the spring 44.
6 can be brought into contact with the upper surface of the uppermost card of the cards loaded in 6 with a pressing force.

The feed roller 52 is formed of a rubber member in which only a part of the roller can provide a large frictional force required for conveying the card. The roller portion other than the rubber portion of the feed roller 52 is made of a smooth and hard member, so that even if it is rotated in contact with the card, a frictional force required for conveyance is not obtained.

An outlet 37 for the card is formed in one side wall 33 which is a front portion of the card case 32, and an outlet guide plate 38 is provided here. The transport unit 54 is attached to the support frame 31 so as to receive the card from the exit guide plate 38. The transport unit 54 forms a transport path for the card that is continuous with the card exit 37 in order to send the card to the stacking device 27 of the rejected ticket stacking unit 26.

FIG. 5 is a perspective view showing the transfer section 54 of the card supply device 28 in an extracted manner. As shown in FIG.
Reference numeral 4 denotes a support frame that defines a card transport path.
1 has an outlet roller 56, a trans roller 58, a gap roller 62, a pinch roller 64, and the like, which are supported horizontally.

FIG. 4 is a perspective view showing the back side of the support frame 31 of the card supply device 28. As shown in FIG. 4, the feed roller 52 and the outlet roller 56 are rotationally driven synchronously by a common step motor 68 via a belt 66. Transformer roller 58, gap roller 62,
The pinch roller 64 is synchronously driven to rotate by a common step motor 74 via a belt 72.

The operation of the card supply device 28 having such a configuration is as follows. First, when a plurality of mark cards are stacked on the backup plate 36 in the card case 32 and placed under the urging force of the spring 44, the upper surface of the uppermost card is pressed against the feed roller 52. In this state, when the feed roller 52 is driven to rotate in synchronization with the timing at which a predetermined number of securities are stacked on the exclusion ticket stacking device 27, only the uppermost card is moved to the card case by the rubber portion of the feed roller 52. 32.

The card sent out is guided by the exit guide plate 38 of the card case 32 and is fed by the feed roller 52.
And is caught by an exit roller 56 which operates in synchronization with the control. Then, the card is conveyed by a trans roller 58, a gap roller 62, and a pinch roller 64 that define the card conveyance path of the conveyance section 54, and is supplied to the rejected ticket stacking device 27 side.

Next, details of the tension coil spring 44 for applying a biasing force to the backup plate 3 will be described. The spring 44 is set so that the upper surface of the uppermost card is pressed against the feed roller 52 with a constant pressing force even when the amount of cards loaded on the backup plate 36, that is, the number of cards changes. The spring constant of the spring 44 necessary for satisfying this condition can be derived as follows.

The pressing force F between the feed roller 52 and the card is expressed by the following equation (1). F = k · (x + P · Δx) −P · w (1) where, x: natural length of the spring 44, (elongation (m) when the card is mounted before placing the card); Δx: one card Thickness (m / sheet); k: spring constant of spring 44 (N / m); w: weight of one card (kg / sheet); P: number of cards:

In equation (1), the thickness Δ of one card
x and the weight w of one card are constant values. Therefore,
The spring constant of the spring 44 is set as in the following equation (2). k = w / Δx (2) When the spring constant of the spring 44 is set so as to satisfy the expression (2), the pressing force becomes as shown in the following expression (3) regardless of the number of loaded cards.

F = k · x (3) Therefore, by adjusting the natural length x of the spring 44, the pressing force F can be set freely.

In the card supply device 28, the frictional force between the rubber portion of the feed roller 52 and the card is larger than the frictional force between two adjacent cards generated by the pressing force F. Thus, the natural length x of the spring 44 is set. Therefore, only the uppermost card pressed against the feed roller 52 by the pressing force F is sent out by the roller 52, and the cards below it are not sent out at the same time.

In the above-described embodiment, a mark card is described as an example of a supply object of the supply device. However, the paper sheet supply device according to the present invention is highly versatile, The present invention can be similarly applied to a paper sheet supply device.

[0036]

According to the paper sheet supply apparatus according to the present invention and a paper sheet inspection machine for securities and the like incorporating the apparatus as a supply apparatus for a mark card, a stack of paper sheets (or a mark card) is loaded. Regardless of the change in the number of sheets, the sheet and the feed roller are always brought into contact with a constant pressing force. For this reason, the possibility that double feeding of paper sheets or idling of the feed roller occurs is reduced, and without undue burden on the drive motor,
It is possible to send out sheets one by one without fail.

In particular, if a tension coil spring is used as a means for applying a biasing force for pressing the paper sheet against the feed roller via the mounting table, the paper sheet can be reliably sent out and the load on the drive motor can be reduced. The mitigation can be achieved with a simple structure.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a paper sheet feeding apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic view showing an entire security inspection machine in which the paper sheet supply device shown in FIG. 1 is incorporated as a supply device for a mark card;

FIG. 3 is a perspective view extracting and showing a relationship between a support frame and a backup plate of the paper sheet supply device shown in FIG. 1;

FIG. 4 is a perspective view showing a back side of a support frame of the paper sheet feeding apparatus shown in FIG. 1;

FIG. 5 is a perspective view extracting and showing a transport unit of the paper sheet feeding apparatus shown in FIG. 1;

[Explanation of symbols]

10 ... inspection machine, 12 ... input device, 14 ... supply device, 16
... Conveyance device, 18 ... Inspection determination device, 20 ... Segmentation part, 2
4, 25, 26: stacking unit, 27: stacking device, 28: card supply device, 32: card case, 36: backup plate, 42: linear guide rail, 44: tension coil spring, 52: feed roller, 54: transport Department.

Claims (6)

[Claims] 1. A mounting table for stacking a plurality of paper sheets, a feed roller disposed above the mounting table, and for feeding the paper sheets one by one by rotation, A drive motor for rotationally driving the feed roller; an urging means for bringing the upper surface of the paper sheet on the mounting table into contact with the feed roller with a pressing force; and a rotation of the feed roller. And a transport unit for receiving and transporting one of the paper sheets sent from the table, and wherein the pressing force is changed regardless of a change in the number of stacked sheets on the table. A paper sheet feeding device characterized by being maintained constant. 2. The apparatus according to claim 1, wherein the urging means comprises a spring for applying an upward urging force to the mounting table, wherein a spring constant (N / m) of the spring is k, and a weight (k) of one sheet of the paper sheet.
The spring constant of the spring is set to satisfy k = w / Δx, where g) is w and Δx is the thickness (m) of one of the sheets. 6. The paper sheet supply device according to 1. 3. The sheet feeding apparatus according to claim 2, wherein said spring is a tension coil spring. 4. A supply device for sending out sheets one by one, an inspection device for inspecting the paper sheets sent from the supply device, and the inspection device based on an inspection result by the inspection device. A transport device for transporting the paper sheets while separating them, an accumulating device for accumulating a sort of the paper sheets conveyed by the transport device, and the accumulating device that accumulates on the accumulating device. A card supply device for supplying a mark card for each predetermined number of paper sheets, wherein the card supply device comprises: a mounting table for stacking a plurality of mark cards; A feed roller disposed above the mounting table, for feeding the cards one by one by rotation; a drive motor for rotating the feed roller; and an upper surface of the card on the mounting table. The feed Biasing means for contacting the roller with a pressing force, and a transport unit for receiving and transporting one of the cards sent from the mounting table by the rotation of the feed roller, The paper sheet inspection machine, wherein the pressing force is kept constant irrespective of a change in the number of stacked cards on the mounting table. 5. The card according to claim 1, wherein the urging means comprises a spring for applying an upward urging force to the mounting table, wherein the spring constant (N / m) of the spring is k, and the weight of one card of the card (k).
The spring constant of the spring is set to satisfy k = w / Δx, where g) is w and Δx is the thickness (m) of one of the cards. Paper sheet inspection machine. 6. A paper sheet inspection machine according to claim 5, wherein said spring is a tension coil spring.