JP2503812Y2 - Paper sheet stacking device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention discharges paper sheets such as banknotes one by one into a stacking chamber by rotating a conveying roller, and sequentially discharges them onto a bottom plate in the stacking chamber. The present invention relates to a paper sheet stacking device for stacking.

[Conventional technology]

FIG. 4 is a schematic mechanism diagram showing a conventional paper sheet stacking apparatus, in which 1 is a single-leaf paper sheet such as a banknote, 2 is a stacking chamber for stacking a plurality of the paper sheets 1, This stacking chamber is composed of guide plates 3 and 4 arranged opposite to each other with a width wider than the length of the paper sheet 1, and a bottom plate 5 arranged between the guide plates 3 and 4. Has a structure in which it is moved up and down by a driving means (not shown).

Reference numeral 6 denotes a conveying roller rotatably arranged along the upper end of one guide plate 3 of the guide plates 3 and 4, and 7 denotes a conveying belt stretched over the conveying roller 6 for rotating the conveying roller 6. Rotate with it.

Reference numeral 8 denotes an idle roller that is in pressure contact with the conveying roller 6 from above via the conveying belt 7.
It is designed to rotate with the rotation of.

In the transportation of the paper sheet 1 having the above-described configuration, when the transport roller 6 is rotated in the arrow direction in the figure by a drive source (not shown), the transport belt 7 and the idle roller 8 are also rotated in the arrow direction in the figure. Along with this, the paper sheet 1 is conveyed onto the conveyor belt 7, and is nipped by the conveyor roller 6 and the idle roller 8 arranged on the front side of the accumulating chamber 2, and to the accumulating chamber 2 by its rotational force. Sent in.

When the rear end of the paper sheet 1 sent into the stacking chamber 2 is separated from the transport roller 6 and the idle roller 8, the paper sheet 1 is discharged to the front in the transport direction by the inertia of the transport force between the rollers 6 and 8, and the front surface in the transport direction. After colliding with the guide plate 3 of the above, the paper sheets 1 are accumulated on the bottom plate 5 or, if the paper sheets 1 are already accumulated on the bottom plate 5, on the uppermost paper sheet 1.

In addition, as the paper sheets 1 are sequentially accumulated, the bottom plate 5
Goes down. This is to ensure that the uppermost layer surface of the paper sheet 1, that is, the stacking position of the paper sheet 1 with respect to the discharge position of the paper sheet 1 to the stacking chamber 2 by the transport roller 6 and the idle roller 8 is always a constant position. Thus, the sheets 1 discharged from the discharging position are always sequentially accumulated regardless of the amount.

[Problems to be solved by the device]

However, since the width between the guide plates of the conventional stacking chamber described above is wider than the stack of paper sheets, when the paper sheets are discharged into the stacking chamber, they collide with each other after hitting the front guide plate. It will be accumulated at an unspecified position with the guide plate.

Therefore, since the paper sheets are accumulated between the pair of guide plates facing each other in a non-uniform state, when the bottom plate is moved up and down, the friction resistance between the guide plate and the edge of the paper sheet serving as the guide plate is increased. Becomes bigger and heavier, or
In some cases, the corners of paper sheets may be broken or damaged.

Further, when the paper sheets are again separated one by one from this state, there is a problem that a negative effect such as skew is exerted.

The present invention has been made to solve the above-mentioned problems, and prevents paper sheets from becoming uneven in the stacking chamber so that the bottom plate can be smoothly moved up and down, and when the bottom plate is moved up and down. An object of the present invention is to provide a paper sheet stacking device capable of stacking paper sheets in an aligned manner so that the corners of the paper sheets are not broken or damaged.

[Means for solving the problem]

In order to achieve the above-mentioned object, the present invention provides a movable paper sheet stopper having a biasing force for pushing back the paper sheets in the conveying direction to the front of the stacking chamber, and the guide sides facing each other by the pushing back force of the paper sheet stopper. It is arranged so that it can be collected.

That is, in the paper sheet stacking apparatus, in which the paper sheets are transported one by one by rotating the transport roller, fed into the stacking chamber, discharged, and sequentially stacked on the bottom plate in the stacking chamber, Is a paper sheet stopper which is arranged in front of the front side of the paper sheet in the conveying direction and is movable in the front-back direction of the paper sheet conveying direction, and a guide which is arranged opposite to the paper sheet stopper with a width wider than the width of the paper sheet. The bottom plate is supported between the guide and the paper sheet stopper so as to be vertically movable.

Then, the paper sheet stopper is urged by the urging means so as to project to the inside of the stacking chamber, and the urging force is applied to the paper sheet stopper at the time of discharge generated from the conveyance speed and mass of the paper sheet. The force is smaller than the impact force and is larger than the frictional force of one sheet of paper with the bottom plate or the paper sheets accumulated on the bottom plate.

Further, the projection position of the paper sheet stopper into the stacking chamber is defined by the width of the paper sheet stopper and the guide facing the paper sheet stopper with respect to the discharge position of the paper sheet from the transport roller to the stacking chamber. Support it so that it is almost the same width as the leaves.

Further, when the paper sheets are discharged into the stacking chamber, a pressing means for pressing the rear end side of the paper sheets in the paper sheet stopper direction with a force larger than the biasing means is provided. Paper sheet stacking device.

[Action]

With the configuration described above, when the paper sheet is conveyed by the conveying roller and is discharged to the stacking chamber at the discharging position,
At the same time, the pressing means presses the rear edges of the paper sheets and presses them forward, that is, toward the paper sheet stopper.

As a result, the paper sheet stopper moves outward so as to recede from the accumulating chamber by the impact force given by a certain constant conveyance speed of the paper sheet and the pressing force of the pressing piece.

Then, when the pressing force from the pressing means on the paper sheets disappears, the paper sheet stopper again projects toward the stacking chamber by the biasing means, and this operation pushes the paper sheets back to the guide side.

As a result, the paper sheets are gathered orderly and sequentially on the bottom plate in a state where the guide pieces are brought close to each other.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic side view of the paper sheet stacking device, FIG. 2 is a perspective view of the same embodiment, and FIG. 3 is an operation explanatory view showing the operation of this embodiment.

In FIGS. 1 and 2, 1 is a sheet, 6 is a conveying roller, 7 is a conveying belt, and 8 is an idle roller. However, the description thereof is omitted.

Reference numeral 9 denotes a stacking chamber for stacking the paper sheets 1 transported by the transport roller 6 and the idle roller 8, and a stopper holder 10 provided in front of the transport direction of the paper sheets 1
And a paper sheet stopper 11 rotatably attached to the stopper holder 10, and a guide arranged to face the paper sheet stopper 11 with a predetermined width, that is, a width wider than the length of the paper sheet 1.
12 and a bottom plate 13 that can move up and down for accumulating the paper sheets 1.

The structure of the paper sheet stopper 11 will now be described. As shown in FIGS. 1 and 2, the paper sheet stopper 11 has a space shorter than the width of the paper sheet 1 on the front side in the transport direction of the paper sheet 1. Is attached to a pair of stopper holders 10 arranged upright so as to be rotatable around a shaft 14 as a fulcrum, and by a coil spring 15 as a biasing means, always in the direction of the arrow in the figure, that is, inside the accumulating chamber 9. Supported to urge.

The stopper holder 10 is in the form of a rectangular column having a substantially U-shaped horizontal cross-section with one side facing the stacking chamber 9 being opened. The paper stopper 11 is provided inside the U-shaped side of the stopper. It is possible to appear and disappear freely.

Then, a cutout portion 10a is formed on the rear surface of the stopper holder 10, that is, a surface facing the opening surface, and a locking claw 11a is formed at a position of the paper sheet stopper 11 facing the cutout portion 10a. By locking this locking claw 11a in the cutout portion 10a, the coil spring 15
The rotational position of the paper sheet stopper 11 is regulated by the urging force of the paper sheet stopper 11 so that the paper sheet stopper 11 is stopped at a certain position inward of the stacking chamber 9.

The stationary position of the paper sheet stopper 11 is set so that the widths of the paper sheet stopper 11 and the guide 12 are substantially equal to the width of the paper sheet 1 at the uppermost portion of the paper sheets 1 accumulated on the bottom plate 13. Has been done.

In this way, the paper sheet stopper 11 is mounted from the inside of the stopper holder 10 in a state of being rotated about the shaft 14 at the lower end as a fulcrum so as to always project toward the stacking chamber 9 side by the urging force of the coil spring 15. Is there.

The setting of the urging force of the coil spring 15 is performed at a sheet conveying speed set for each sheet conveying apparatus, and the sheet 1 having a constant mass determined in advance by the apparatus. Is discharged to the accumulating chamber 9 and is smaller than a constant impact force generated when the leading edge of the paper sheet 1 collides with the paper sheet stopper 11 due to inertia and is on the bottom plate 13 or the bottom plate 13.
The value is larger than the frictional force of one sheet 1 with the sheet 1 already accumulated on the sheet.

On the other hand, at the upper end of the paper sheet stopper 11 and the guide 12 side facing the stopper holder 10 supporting the paper sheet stopper 11, the pressing roller 16 together with the conveying roller 6 is provided.
Are arranged coaxially with the conveying roller 6.

Further, a pressing piece 17 as a pressing means for a wing-shaped piece formed of a flexible member such as polyurethane rubber is provided on the peripheral surface of the pressing roller 16 in a protruding manner.
Is curved in a direction opposite to a rotation direction 8 (direction of an arrow in the drawing) of the transport roller 6 for transporting the paper sheet 1, and its tip is positioned so as to project outward from the peripheral surface of the transport roller 5. In addition, when the paper sheet 1 is conveyed, when the paper sheet 1 is released from the nipping between the conveyance roller 6 and the idle roller 8, the rear end side of the paper sheet 1 is pressed against the trailing edge.

This is to press the rear end of the paper sheet 1 when the paper sheet 1 conveyed by the conveying roller 6 and the idle roller 8 is fed into the accumulating chamber 9, and the paper sheet discharged into the accumulating chamber 9 The tip of the class 1 has a role of always hitting the paper sheet stopper 11 by a constant impact force.

Next, the stacking operation of paper sheets in the above configuration will be described with reference to FIG. FIG. 1A shows a state where the sheet 1 collides with the sheet stopper, and FIG. 1B shows a state where the sheet 1 is pushed back by the sheet stopper.

When the transport roller 6 is started to rotate in the direction of the arrow in the figure by a drive source (not shown) and the transport belt 7 travels, the sheet 1 is transported from the right direction in the figure, and the transport roller 6 and the idle roller 8 are separated from each other. It is sandwiched between and is sent to the accumulating chamber 9 by the rotational force of both rollers 6 and 8.

Then, the paper sheet 1 includes the transport roller 6 and the idle roller 8.
The pressure roller which passes through the space between the rollers 6 and 8 and is released from the nip between the rollers 6 and 8 and is rotated integrally with the transport roller 6 at the same time.
The pressing pieces 17 of 16 are pressed against the rear end side of the paper sheet 1 so as to oppose each other, and further press it forward.

By the pressing force of the pressing piece 17, the paper sheet 1 is pushed forward in the conveying direction as shown in the figure, and abuts against the front paper sheet stopper 11. In this state, the paper sheet stopper 11 is at the position shown by the chain double-dashed line in the figure, but it is pressed by the impact force given by a certain constant transport speed of the paper sheet 1 and the pressing force of the pressing piece 17.

As a result, the paper sheet stopper 11 is rotated around the shaft 14 as a fulcrum in the direction of expanding from the stacking chamber 9 against the biasing force of the coil spring 15 and moved to the position shown by the solid line in the figure, that is, the stopper holder 10 Get inside. This state is shown in (a).

When the pressing piece 17 is separated from the rear end side of the paper sheet 1 thus fed into the stacking chamber 9 by rotation, the paper sheet stopper 11
When the coil spring 15 is restored, the coil rotates to the stacking chamber 9 side and projects, and the operation at this time pushes the sheet 1 back to the guide 12 side.

The protruding position of the paper sheet stopper 11 toward the stacking chamber 9 has the same width as the width of the paper sheet 1 at the uppermost portion of the stacked paper sheets 1, that is, the paper sheet 1 is a guide. The rear end will be struck at 12. Therefore, the paper sheets 1 are gathered in order on the bottom plate 13 in a state of being biased along the guide 12.

Further, by this operation, the leading edge side of the sheet 1 already accumulated on the bottom plate 13 is hit by the sheet stopper 11 and pressed against the guide 12 side. That is, the accumulated paper sheets are repeatedly pushed by the guide 12 by the paper sheet stopper 11 and are neatly arranged. This state is shown in FIG.

Then, the bottom plate 13 gradually descends in accordance with the accumulated amount of the paper sheets 1 and holds the uppermost portion of the paper sheets 1 so that the height is always constant.

[Effect of device]

As described above, according to the present invention, a movable paper sheet stopper having an urging force that pushes back the paper sheets in the conveying direction is provided in front of the stacking chamber, and the paper sheet stopper is provided by the tip of the paper sheets. A pressing means for pressing the rear end of the paper sheet so as to press is provided, and a guide arranged opposite to the paper sheet stopper by the pushing back force of the paper sheet stopper pressed by the paper sheet pressed by the pressing means. Since the paper sheets always collide with the front paper sheet stopper once, and when the pressing force from the pressing means disappears, the paper sheets are pushed back to the guide side by the urging force of the paper sheet stopper. It became possible to align and collect along.

As a result, the paper sheets can be collected in an orderly manner without providing special power, so that damage to the paper sheets caused by misalignment can be prevented, and the work of aligning the paper sheets after taking them out from the accumulating chamber can be performed. Since there is no need to do so, it is possible to obtain a sheet stacking device that is inexpensive, reliable, and has improved workability.

Further, there is also an effect that even if the paper sheets conveyed by the conveying rollers are skewed, they can be corrected and stacked according to the stacking operation of the present application.

[Brief description of drawings]

FIG. 1 is a schematic side view of a paper sheet stacking device, FIG. 2 is a perspective view of the same embodiment, FIG. 3 is an operation explanatory view showing the operation of the same embodiment, and FIG. 4 is a conventional paper sheet stacking device. It is a schematic structure figure showing an apparatus. 1 …… paper sheet, 6 …… conveying roller 9 …… collecting chamber, 11 …… sheet stopper 12 …… guide, 13 …… bottom plate 15 …… coil spring, 17 …… pressing piece

Claims (1)

(57) [Scope of utility model registration request] 1. A paper sheet stacking device for transporting paper sheets one by one by rotating a transport roller, feeding the paper sheets into a stacking chamber and discharging them, and sequentially stacking them on a bottom plate in the stacking chamber. A paper sheet stopper that is arranged in the front of the paper sheet conveyance direction and is movable in the front and rear direction of the paper sheet conveyance direction,
The sheet stopper and a guide that are arranged to face each other with a width wider than the width of the sheet, and a bottom plate that is vertically movably supported between the guide and the sheet stopper. The urging force is urged so as to project inward of the sheet, and the urging force is smaller than the impact force on the sheet stopper at the time of discharge generated from the sheet conveying speed and the mass, and the urging force is on the bottom plate or the bottom plate. The force of friction is larger than the frictional force of one sheet on the sheets accumulated above, and the projection position of the sheet stopper into the accumulation chamber is set to the sheet discharging position. At the position where the width of the stopper and the guide facing the paper sheet stopper is substantially the same as the width of the paper sheet, and when the paper sheet is discharged from the transport roller to the stacking chamber, The trailing edge of the paper sheet is stored with a force larger than that of the urging means. Paper sheet stacking apparatus characterized in that a pressing means for pressing direction.