JP2009046298A - Paper sheet accumulating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide means for aligning and accommodating paper sheets even when the paper sheets to be accumulated in a paper sheet accommodating part are bent. <P>SOLUTION: A warpage generating shaft 9 capable of changing a degree of warpage of tongue pieces 11a-11d is installed at a position approximately parallel to a separation roller shaft 8. When the tongue pieces 11a-11d curved forward in an accumulating direction of paper sheets P rotate, the tongue pieces 11a-11d are made to collide with the warpage generating shaft 9, so as to change the warpage of the tongue pieces 11a-11d. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a paper sheet stacking apparatus that transports paper sheets such as banknotes and slips and stores them in a paper sheet storage unit.

The conventional paper sheet stacking apparatus for handling banknotes, slips, etc., knocks down the rear end of the paper sheet discharged to the paper sheet storage unit with a tongue piece roller having a tongue piece curved forward in the stacking direction, The trailing edge of the succeeding paper sheet is prevented from colliding, and the successively conveyed paper sheets are stored in the paper sheet storage unit. (For example, refer to Patent Document 1).
JP 2006-168895 A

  In general, the tongue piece of the tongue roller rolls down the paper sheet, and then presses the top surface of the paper sheet stored in the paper sheet storage unit with the tip of the tongue piece in order to press the paper sheet. Composed.

  However, in the above-described conventional technology, when the paper sheet is strongly creased or the like, the force of knocking is insufficient, and the succeeding paper sheet is removed before the knocked-down paper sheet falls to the stacking unit. It is transported and causes accumulation failure.

  In addition, when the force of knocking off is relatively strong, after pressing the upper surface of the accumulated paper sheets, the paper sheets are wound around the accumulation surface, which may cause an accumulation failure. Further, when such a stacking failure occurs, the paper sheet stacking apparatus having the separation mechanism has a problem that causes a feeding failure when the stacked paper sheets are fed out.

  In order to solve the above-mentioned problems, the present invention provides a means for aligning and storing paper sheets even if the paper sheets accumulated in the paper sheet storage section are folded. Objective.

  The present invention employs the following means in order to solve the aforementioned problems. That is, it is a paper sheet stacking device having a paper sheet storage unit that stacks and stores paper sheets, and a tongue piece that can tap and press the paper sheets stacked in the paper sheet storage unit. The tongue piece is formed of a flexible material, and means for increasing the force when pressing the paper sheet with the tongue piece is provided.

  According to the paper sheet stacking apparatus of the present invention, since the means for changing the force when pressing the paper sheets is provided, the paper sheets can be stacked and stacked according to the state of the paper sheets.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the element common to drawing.

(Constitution)
FIG. 1 is a side view showing a main part configuration of a paper sheet stacking apparatus according to the embodiment, and FIG. In this embodiment, an apparatus having a paper sheet separating and feeding function capable of separating and feeding out the stored paper sheets one by one will be described.

  Reference numeral 1 denotes a paper sheet stacking device, and 2 denotes a paper sheet storage unit. The paper sheet storage unit 2 includes a front plate 2a, a rear plate 2b provided corresponding thereto, a pair of side plates 2c provided on the sides of the front plate 2a and the rear plate 2b, and a lower plate provided below. The box 3 is composed of a stage 3 that can be raised and lowered by a stage raising / lowering motor 23, and the paper sheets P are collected and stored in the stage 3. FIG. 1 shows a state in which the front side plate 2c is removed.

  Reference numeral 4 denotes a feeding roller, which is installed at a predetermined interval on a feeding roller shaft 5 provided at the entrance of the paper sheet storage unit 2 and rotates forward and backward. A high friction member 6 having a sufficient frictional force for conveying the paper sheet P is attached to a part of the outer peripheral surface of the feeding roller 4, and two ring-shaped grooves C are provided over the entire circumferential direction. Has been.

  Reference numeral 7 denotes a separation roller, which is pivotally supported by a separation roller shaft 8 which is disposed so as to face the feeding roller 4 and is disposed substantially in parallel with the feeding roller shaft 5. A ring-shaped groove portion D is provided in the circumferential direction of the outer peripheral surface of the separation roller 7, and the groove portion C of the feeding roller 4 and the convex portion interposed beside the groove portion D are nested so as to be engaged with each other. Has been placed. The feeding roller 4 and the separation roller 7 constitute a roller pair for discharging the paper sheet P to the paper sheet storage unit 2.

  Further, the separation roller 7 is provided with a one-way clutch (not shown) as a one-way rotating member, and can rotate only in the stacking direction of the paper sheets P indicated by an arrow A in FIG. It does not rotate in the (feeding) direction.

  Reference numeral 10 denotes a tongue roller, which is pivotally supported on a separation roller shaft 8 on the outside (left and right shown in FIG. 2) of each separation roller 7 via a one-way clutch (not shown) as a one-way rotating member. The sheet P is stacked in the stacking direction in conjunction with the rotation of the separation roller 7 and is rotated in the anti-stacking direction.

  The tongue piece roller 10 is composed of four tongue pieces 11a to 11d made of a flexible material such as natural rubber, synthetic rubber or polyimide resin plate, and the tongue pieces 11a to 11d are tangents on the outer periphery of the hub 10a. As shown in FIG. 1, it is formed to be bent forward in the stacking direction of the paper sheets P, and has a length that allows sliding on the stacked paper sheets P.

  Reference numeral 12 denotes a conveying roller, the entire circumference of which is formed by a high friction member, and is arranged on the outer side of each feeding roller 4 of the feeding roller shaft 5 and in the center between the feeding rollers 4 as shown in the figure.

  A pressure roller 13 is rotatably supported by a roller shaft (not shown) and is installed on the upstream side in the stacking direction of the separation roller 7 so as to face the conveyance roller 12. Is pressed.

  Reference numeral 15 denotes a pickup roller, which is disposed at a predetermined interval on the downstream side in the stacking direction of the feeding roller 4 and has a high friction member 14 having a sufficient frictional force for conveying the paper sheet P at a part of its outer periphery. Is attached and is rotated in conjunction with the feeding roller 4 by a belt or the like (not shown).

  Reference numeral 17 denotes a pair of conveyance guides, and an opening (not shown) through which the tongue pieces 11a to 11d pass in the rotation locus space T as an operation locus space of the tongue pieces 11a to 11d when the tongue piece roller 10 rotates. Is provided.

  One of the conveyance guides 17 is curved from a position near the sheet storage unit 2 near the separation roller 7 and connected to the front plate 2a of the sheet storage unit 2, and the other of the conveyance guides 17 is connected to the top plate 18 and It is provided to be connected and guides the paper sheet P to be conveyed in the direction of arrow A.

  The top plate 18 is installed so as to face the stage 3 at the bottom of the paper sheet storage unit 2, and an opening (not shown) for projecting a part of the outer periphery of the pickup roller 15 into the paper sheet storage unit 2. It has.

  Reference numeral 9 denotes a warp generating shaft as an obstacle which can be moved forward and backward, which is disposed substantially in parallel with the separation roller shaft 8 and disposed in the rotation locus space T of the tongue pieces 11a to 11d. When the tongue pieces 11a to 11d are rotated clockwise, as shown in FIG. 1, the tongue piece 11d first collides with the warp generating shaft 9 and is elastically deformed. When the tongue pieces 11a to 11d pass therethrough, the tongue pieces 11b and 11c warp like the tongue pieces 11b and 11c. When the contact with the warp generating shaft 9 is lost and the contact is released, the paper sheet P is struck more strongly than when the contact is not made with the warp generating shaft 9 due to the reaction that is the restoring force. It has become.

  Further, the warp generation shaft 9 is supported by a frame or the like (not shown), and can be moved in the direction of arrow B in the rotation locus space T of the tongue pieces 11a to 11d by a shaft moving motor 21 described later.

  The initial position of the warp generating shaft 9 is located on the left side in the figure as shown by a solid line, and when it is moved to the right side in the figure, that is, on the side of the paper sheet stacking portion 2 as shown by a broken line, the warp is generated toward the tongue pieces 11a to 11d. Is increased, and the paper sheet P is pressed down with a stronger force. Therefore, the warp generating shaft 9 is moved in the direction of arrow B according to the state of the paper sheet P or the like.

  Reference numeral 19 denotes an optical upper surface detection sensor for detecting the accumulated upper surface position of the paper sheets P accumulated in the paper sheet collecting unit 2. Needless to say, the optical axis does not overlap the tongues 11 a to 11 d and the pickup roller 15.

  FIG. 3 is a control block diagram of the paper sheet stacking apparatus according to the embodiment. The shaft moving motor 21 is a stepping motor as a driving source for moving the warp generating shaft 9 in the direction of arrow B, and the accumulating motor 22 is used for accumulating the sheets P in the sheet storage unit 2. The stage elevating motor 23 is a stepping motor that elevates the stage 3 in order to set the upper surface height of the paper sheets P accumulated in the paper sheet storage unit 2 to a specified position. It is.

  The shaft HP sensor 24 is a sensor that detects whether or not the warp generating shaft 9 is in an initial position (for example, a position shown by a solid line in FIG. 1), and the upper surface detection sensor 19 is integrated in the paper sheet collecting unit 2 as described above. The sheet number detection sensor 25 is a sensor that is provided on the upstream side of the conveyance guide 17 and counts the number of sheets that have passed through the sheet P. Each of the above-described sensors is an optical sensor, and is determined by a change in the current value output from the light receiving element when the optical axis is blocked by the paper sheet P.

  The discrimination unit 26 is for identifying the outer size, skew feeding, and multifeed for each paper sheet P, detecting the passage of the paper sheet P, and causing the control unit 20 to perform counting. The control unit 20 has an operation program for each unit and controls each unit. Furthermore, although there is a storage unit for storing information on the accumulated paper sheets P, the description is omitted because it is not related to the present application.

(Operation)
With the above configuration, the paper sheet stacking apparatus according to the embodiment operates as follows. This operation will be described in detail below with reference to the operation explanatory diagram of the paper sheet stacking apparatus in FIGS. 4 to 7 and the operation flowchart of the paper sheet stacking apparatus in FIG. In the present description, when the upper surface detection sensor 19 detects the paper sheet P, the stage 3 is lowered by an amount (a constant amount) corresponding to 20 sheets of paper sheets P, and the paper sheet P has already been lowered. An example of operation from a state in which five sheets are stacked.

  First, when a paper sheet P is inserted into the paper sheet stacking apparatus 1 (step S1), a detector (not shown) detects this, and the control unit 20 starts an operation for taking in the paper sheet P.

  First, the shaft HP sensor 24 confirms that the warpage generating shaft 9 is on the left side in the figure, and when it is not at the HP, the shaft moving motor 21 is driven to indicate the position of the warpage generating shaft 9 in FIG. Is set to the initial position on the left side of the figure (step S2).

  Next, when the paper sheet P is conveyed by the taking-in operation and passes through the discrimination unit 26, the discrimination unit 26 counts the number and the number of the paper sheets P, and further conveys the paper sheet P toward the paper sheet storage unit 2. The Note that the paper sheet P that has been determined to be abnormal in outer size size, skew, or double feed is transported to a reject ticket storage unit (not shown).

  Each time the transported paper sheet P passes through the passing number detection sensor 25 provided on the upstream side of the transport guide 17, the number of the paper sheet P passed is counted (step S3), and is guided to the transport guide 17. come.

  Then, the feeding roller 4 constituting the roller pair is rotated counterclockwise, the separation roller 7 is rotated clockwise, and the paper sheet P sandwiched between the feeding roller 4 and the separation roller 7 is conveyed in the direction of arrow A. As shown in FIG. 4, the tongue piece 11c of the tongue piece roller 10 knocks down the rear end of the paper sheet P, and the paper sheet P is discharged into the paper sheet storage section 2 as shown in FIG. Are accumulated on stage 3 (step S4).

  Here, the operation of the tongue pieces 11a to 11d will be described in detail. As shown in FIG. 4, when the tongue piece roller 10 rotates clockwise, the tip of the tongue piece 11d first collides with the feeding roller shaft 5, and the rotation synchronized with the rotation of the tongue piece roller 10 is temporarily prevented. And deform.

  When the tongue piece roller 10 further rotates, the tongue piece 11d disengages from the feeding roller shaft 5, bends as the tongue piece roller 10 rotates, and strikes the rear end of the paper sheet P like the tongue piece 11c shown in FIG. . Then, when the rotation further proceeds, the tongue piece 11d that knocks down the paper sheet P separates while being in sliding contact with the upper surface of the accumulated paper sheet P, and rotates to the position of the tongue piece 11b shown in FIG.

  Meanwhile, the subsequent tongue piece 11a collides with the feeding roller shaft 5 and repeats the same operation. It goes without saying that the same operation is performed on the tongues 11b and 11c.

  When the stacking is continued, the upper surface position of the stacked sheets P is detected by the upper surface sensor 19 provided in the sheet storage unit 2 (step S5).

  At this time, when the upper surface sensor 19 is turned on, the control unit 20 checks the number of stacked sheets P (step S6).

  Further, it is determined whether or not the accumulation of the specified number (20 sheets) has been completed (step S7). If the accumulation of the specified number has not been completed, that is, as shown in FIG. If it is determined that there is a high possibility that the leaves P and the like are accumulated and there is a gap, the upper surface detection sensor 19 is determined to have been turned on before reaching the specified number (20). For example, when 10 sheets are turned on, it is determined that paper sheets P that are strongly folded are accumulated.

  The control unit 20 moves the warp generating shaft 9 to the side of the paper sheet storage unit 2 shown by the solid line in FIG. 6 and positions it in the rotation locus space T of the tongue pieces 11a to 11d (step S8). Then, as shown in FIG. 6, the warp generating shaft 9 and the tongue piece 11d come into contact with each other, the flexible tongue piece 11d is bent, and the paper sheet is strong with the repulsive force as shown in the tongue piece 11c. The sheet P is pressed down and the sheets P are accumulated, and the operations in steps S4 to S7 are repeated. However, during this repeated operation, there is no further movement of the warp generating shaft 9 in step S8.

  If it is determined in step S7 that the specified number has been accumulated, it is checked whether the upper surface detection sensor 19 is ON. If it is ON, the process proceeds to the next step S10 (step S9). If the upper surface detection sensor 19 is OFF, the process returns to step S2, the warp generating shaft 9 is returned to the initial position, and the subsequent operations are repeated.

  Even if the upper surface detection sensor 19 is ON even if the controller 20 is pressed by a strong force generated by the warp generation shaft 9, the upper surface height of the accumulated paper sheets P is less than the specified number (20 sheets) or more. If the stacking is performed, the stage lifting motor 23 is driven to lower the stage 3 by a certain amount (step S10).

  And the control part 20 returns the curvature generation | occurrence | production shaft 9 to an initial position in parallel with the operation | movement which carries out a fixed amount fall of the stage 3. FIG. Then, the operations after step S3 are repeated, and when the inserted paper sheet P is no longer present (step S11), the stacking operation is terminated.

  Next, the operation of feeding out the paper sheet P from the paper sheet storage unit 2 will be described with reference to FIG. When the paper sheet P is fed out from the paper sheet storage unit 2 and conveyed in the anti-stacking direction, the stage 3 of the paper sheet storage unit 2 is raised by driving the stage elevating motor 23 so as to be stacked. The paper sheet P is pressed against the pickup roller 15.

  Subsequently, the control unit 20 controls a driving source (not shown) to rotate the feeding roller 4 and the pickup roller 15 in the clockwise direction in FIG.

  The pressed uppermost paper sheet P is conveyed in the direction of the feeding roller 4 by a frictional force acting between the high friction member 14 attached to the pickup roller 15 and the paper sheet P.

  The transported paper sheet P is sandwiched between the feeding roller 4 and the separation roller 7, and in the upstream direction of the transporting guide 17 due to the frictional force acting between the high friction member 6 attached to the feeding roller 4. Be transported.

  At this time, since the separation roller 7 is rotatable only in the stacking direction of the paper sheets P, it is stopped when the paper sheets P are conveyed in the anti-stacking direction, and a plurality of stacked paper sheets P are stacked. Is sandwiched between the feeding roller 4 and the separation roller 7, only the uppermost paper sheet P in contact with the feeding roller 4 is separated and fed out.

  Further, when the leading end of the fed paper sheet P collides with the tongue pieces 11a to 11d of the tongue piece roller 10, the tongue piece roller 10 idles in the anti-stacking direction of the paper sheet P by a one-way clutch (not shown). Therefore, it is rotated by the paper sheet P, but the load is not so great as to prevent the paper sheet P from being fed out.

  In the above description of the embodiment, a description has been given of providing a shaft for generating warpage in order to temporarily warp and deform the rotation of the flexible tongue piece. Even if a small-diameter roller is provided, the same function can be realized. In addition, the optical sensor that detects the height of the upper surface is provided as a sensor that detects the accumulation state of the paper sheets. However, the same function can be obtained by detecting using a mechanical lever, for example.

  In addition, it has been described that the warp generation shaft 9 can be moved from the initial position to the right in the figure, and the generation of the warp on the tongues 11a to 11d is increased to press the paper sheet P with a stronger force. In the case of a paper sheet P having a high surface friction coefficient such as a completely sealed ticket (such as a bill that is almost unused), when the tongue pieces 11a to 11d strongly press the paper sheet P, the tongue piece 11c is shown in FIG. Therefore, the initial position of the warp generating shaft 9 is outside the rotation locus space T because the paper sheet Pa may be wound around the side surface of the front plate 2a.

  It should be noted that a switch or the like that can set accumulation of completely sealed tickets is provided in the clerk operation unit or customer operation unit, and when the clerk or customer pushes the switch when the paper sheet P is replenished, the warp generating shaft 9 is shown in FIG. The sheet P may be pressed with a slightly weak force by reducing the occurrence of warping to the tongue pieces 11a to 11d by moving to the initial position side indicated by the solid line as shown by the arrow B1 shown in FIG.

  Further, when the paper sheet P is a banknote, warping occurs by the shaft moving motor 21 when it is determined by the denomination determination result by the discrimination unit 26 that there is a difference in stiffness (waist) in, for example, an overseas banknote. The position of the shaft 9 may be moved to increase or decrease the tapping force.

  As described above, according to the paper sheet stacking apparatus of the present embodiment, a means for increasing the force when pressing the paper sheet is provided inside the rotation shaft trace space of the tongue piece roller, and strong folding Since even a certain paper sheet can increase the force of hitting the accumulated paper sheet, a stable accumulation state can be expected.

  INDUSTRIAL APPLICABILITY The present invention can be widely used in a paper sheet stacking apparatus that handles paper sheets, and in particular, can be used in a banknote storage device such as an automatic teller machine that handles banknotes as paper sheets.

It is a side view which shows the principal part structure of the paper sheet stacking apparatus of an Example. It is a front view which shows the structure of the taking-in part of paper sheets in the paper sheet stacking apparatus of an Example. It is a control block diagram of the paper sheet stacking apparatus of the embodiment. It is a figure explaining operation | movement of the paper sheet stacking apparatus of an Example. It is a figure explaining operation | movement of the paper sheet stacking apparatus of an Example. It is a figure explaining operation | movement of the paper sheet stacking apparatus of an Example. It is a figure explaining operation | movement of the paper sheet stacking apparatus of an Example. It is an operation | movement flowchart figure of the paper sheet stacking apparatus of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper sheet stacking apparatus 2 Paper sheet storage part 3 Stage 4 Feeding roller 5 Feeding roller shaft 6 High friction member 7 Separation roller 8 Separation roller shaft 9 Warp generation shaft 10 Tongue piece rollers 11a-11d Tongue piece 12 Conveying roller 14 Height Friction member 15 Pickup roller 16 Pickup roller shaft 17 Conveying guide 19 Upper surface detection sensor 24 Shaft HP sensor 25 Passing number detection sensor P Paper sheet

Claims (6)

A paper sheet storage unit for stacking and storing paper sheets;
A paper sheet stacking device having a tongue piece that can tap and press down the paper sheets stacked in the paper sheet storage unit,
Forming the tongue piece from a flexible material;
A paper sheet stacking apparatus comprising means for changing a force when the paper sheets are pressed by the tongue. The paper sheet stacking apparatus according to claim 1,
The means for changing the force is a paper sheet stacking apparatus using an obstacle capable of moving back and forth in the movement trajectory space of the tongue. The paper sheet stacking apparatus according to claim 2,
A paper sheet stacking device that controls the amount of the obstacle to move forward and backward according to the stacking state of the paper sheets stacked in the paper sheet storage unit. The paper sheet stacking apparatus according to claim 3,
The paper sheet stacking apparatus in which the stacking state of the paper sheets is determined by detecting an upper surface position of the stacked paper sheets. The paper sheet stacking apparatus according to any one of claims 1 to 3,
Before being stacked on the paper sheet storage unit, a discrimination unit for identifying the paper sheet is arranged,
A paper sheet stacking device that changes a force when pressing the paper sheet according to a result of identifying the paper sheet passing through the discrimination unit. A paper sheet storage unit for stacking and storing paper sheets;
A take-in part constituted by a pair of rollers for discharging paper sheets into the paper sheet storage part;
A paper sheet stacking apparatus having a length capable of sliding on the paper sheets stacked in the paper sheet storage unit and having a tongue piece that can rotate.
The tongue piece is formed of a flexible material, and a tongue roller supported on one roller shaft of the roller pair is constructed,
By arranging an obstacle that can move forward and backward in the movement path space of the tongue piece roller, when the tongue piece comes into contact with the obstacle, the amount of bending is increased or decreased, and the contact is released by the subsequent rotation operation. Then, the paper sheet stacking apparatus is characterized in that the bending energy until then is applied to the paper sheets.

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