JP2753386B2 - Paper sheet stacking device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a paper sheet handling apparatus, and in particular, to the reliability of a mechanism for accumulating and storing sequentially sent paper sheets, such as a bill stacking mechanism of an automatic teller machine. It relates to a configuration suitable for improving the degree.

[Prior Art] A bladed roller in a conventional paper sheet stacking apparatus is, as described in Japanese Patent Application Laid-Open No. 61561/1986, when a conveyed paper sheet is deposited in a storage section, In order to prevent interference with the leaf, it is mounted for the purpose of knocking off the upper rear end of the preceding sheet at the blade by rotating the bladed roller, and as described in JP-A-63-23103. In addition to the above object, the trailing edge of the stacked paper sheets is beaten by the blades by the rotation of the bladed roller, so that the stacked paper sheet alignment property in the direction parallel to the paper sheet conveyance direction is improved.

In addition, the above-described prior art sheet stacking apparatus includes a stacking mechanism that stacks sheets in a storage unit, and also stores the stacked sheets in one.
In many cases, a feeding mechanism that separates and feeds the sheet to the next stage is used in combination.

[Problems to be solved by the invention] With the development of technology, the size of the device has been reduced, the storage capacity has been increased,
There is a growing need to improve reliability,
Taking the above object into consideration, the prior art has the following problems.

The first is disorder of alignment of the stacked paper sheets. Considering the miniaturization of the device, it is preferable to arrange such that a part of the rotation radius of the bladed roller blade overlaps the upper end of the piled paper leaf, and the blade part is brought into contact with the piled paper and rotated while being elastically deformed. However, in the case of such a configuration, the first problem occurs because the blade portion strikes the trailing end of the piled paper sheet, and at the same time, the blade portion draws the piled paper sheet backward. Become. The second is an imbalance in the pile height of paper sheets. If the height of the sheet changes elastically, such as when the sheet is piled up with wrinkles or folds, the front side of the sheet is knocked down while pushing down the trailing edge of the stacked sheet. It gets excited. This is the cause of the second problem. The second problem is that the resistance between the paper sheet and the front and rear walls of the storage unit becomes unstable, so that the next-stage feeding operation becomes unstable,
In addition, since the stacking is performed with respect to the predetermined surface, the degree of freedom in the front-back direction of the paper sheet is increased with respect to the front and rear walls of the storage section that regulates the front-back position of the paper sheet, and the alignment is disturbed. Since the stacking height is increased as compared with the case of stacking, the storage capacity within a predetermined dimension is reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the alignment of stacked paper sheets by a low-cost method, improve reliability, and increase the storage capacity within a predetermined size.

[Means for solving the problem]

In order to achieve the above object, the present invention regulates the contact position between the bladed roller blade and the trailing end of the stacked paper sheets by disposing the blade rotation path restricting member at a predetermined position. The contact reduces the force exerted by the blades on the stacked paper sheets.

[Action]

The above-described blade portion rotation trajectory regulating member is disposed at a position that regulates the contact position of the blade portion with the already-stacked paper sheet due to the rotation of the bladed roller. When the blade is pushed down, it comes into contact with the blade portion rotation trajectory regulating circuit, and the configuration is such that the force for pushing down the piled sheets downward is alleviated. It is possible to solve the problem that the alignment of the stacked paper sheets is disturbed by being pulled into the stack, and the front side is raised by pushing down the blades more than necessary.

〔Example〕

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a side sectional view showing the configuration of the present invention, and FIG. 2 is a front view of FIG. 1 showing the operation of the present embodiment viewed from the direction of arrow Z.

First, the configuration of this embodiment will be described with reference to FIG. A sheet stacking mechanism according to an embodiment of the present invention includes a conveying belt 2 for pinching and conveying a sheet 1 and guide rollers 3, 4, and 5, and a driving source (not shown) that feeds the sheet 1 to a storage unit 10 or a next stage. Sheet conveying means comprising a gate 6 for switching the transfer of the sheet to the sheet, holding rollers 7 and 8 opposed to each other and in contact with pressure, and the sheet 1 to be guided onto a holding plate 11 of the storage section 10. And a plurality of blades made of an elastic member such as a synthetic resin which is mounted on the drive shaft of the holding roller 8 and is driven by the same driving source (not shown) as the holding roller 8.
And sheet leaf stacking means comprising a blade roller 14 in which the blades 13 are radially arranged.The blade rotation path regulating member 20 according to the present invention is a cylindrical round bar parallel to the rotation shaft 15 of the bladed roller 14. A little above the stacking surface of the paper sheet 1, it is attached so as to abut on the blade section 13 to regulate the rotation trajectory of the blade section 13, that is, to reduce the contact force between the blade section 13 and the stacked paper sheet 12. . Next, the operation of this embodiment will be described with reference to FIG. 1, FIG. 2, and FIG. Here, FIG. 3 is a partial side sectional view showing the vicinity of the bladed roller 14 of FIG. 1 showing the operation of the blade portion rotation trajectory regulating member 20 of this embodiment. First, in FIG. 1, at the time of sheet stacking, a sheet 1 sent from the preceding stage is conveyed rightward in FIG. 1 by a conveying belt 2 and guide rollers 3, 4, and 5,
It is taken in by the gate 6, and the holding rollers 7, 8 and the guide 9
In the direction of arrow A.

The paper sheet 1 sent from the direction of arrow A to the storage unit 10 is rotated by a bladed roller 14 supported by a drive shaft 15 so as to rotate in the same direction as the paper sheet 1 enters. The paper sheet 1 is forcibly deformed into a wave form as shown in FIG. Rigidity enough to prevent jamming is created. When the sheet 1 comes off the holding rollers 7 and 8, the blade 13 of the roller 14 with the blade knocks the rear end of the sheet 1 in the direction of arrow B in FIG. 1 to prevent interference with the following sheet. I have. Immediately thereafter, that is, the blade portion 13 of the bladed roller 14 is knocked down to the uppermost surface of the piled paper sheet 12 in order to prevent the rear end interference of the paper sheet 1, and when it reaches a predetermined position, as shown in FIG. Reference numeral 13 abuts against the blade rotation path restricting member 20 of the present invention, and the blade 13 having elasticity as described above is deformed as shown in FIG. Being rotated. In addition,
Since the uppermost position of the stacked paper sheet 12 rises due to the stacking of the paper sheet 1, the storage section 10 detects this by a stacking position detection sensor (not shown) and moves the holding plate 11 holding the stacked paper sheet 12 to a power source (not shown). The uppermost position of the stacked paper sheet 12 is kept constant while appropriately controlling the lowering of the paper sheet 1 to stabilize the stacking operation of the paper sheet 1.

FIG. 4 is a view showing a phenomenon that becomes a problem in a sheet stacking apparatus using a conventional bladed roller.

Hereinafter, this phenomenon will be described. In response to demands for downsizing the apparatus and increasing the storage capacity, in the apparatus using the bladed roller 14, a part of the rotation radius of the blade 13 of the bladed roller 14 and the upper end of the stacked paper sheet 12 are overlapped so that the blade It is preferable to have a structure in which the stack 13 is rotated while being elastically deformed by being brought into contact with the stacked paper 12. However, with such a structure, the following problems occur in the conventional device.

First, the fed paper 1 is intermittent and the bladed rollers 14 are intermittent.
In a case where the blade 13 rotates idle while abutting on the piled paper sheet 12 already stored, the blade 13 urges the trailing end of the piled paper sheet 12 to move the piled paper sheet 12 as shown in FIG. ', The sheet may be pulled backward, and the alignment of the stacked paper sheets 12 may be disturbed, which may cause a trouble at the time of feeding. Also,
In the case where the accumulated banknotes are folded and wrinkled like a circulated banknote and the piled-up height changes elastically, the blades 13 overlap the piled paper 12 and the blades 13 Fig. 4 (2)
The front end of the piled paper sheet 12 swells up like this, and there is a difference in height h between the front end and the rear end of the top surface of the piled paper sheet 12,
Storage section 10 front and rear walls 16, 17 for regulating the front and rear position of stacked paper sheets 12
On the other hand, the degree of freedom in the front-back direction of the stacked paper sheets 12 increases, and the alignment property is disturbed. In addition, since the stacking height is increased as compared with the case where the same number of sheets are stacked in parallel to the predetermined surface, the storage capacity within a predetermined size is reduced. FIG. 5 shows a blade rotation locus regulating member according to the present invention.
FIG. 1 is a partial side sectional view showing the vicinity of a bladed roller 14 showing the effect of FIG. 20, and FIG. 6 is a partially enlarged view showing the vicinity of a blade rotation locus restricting member 20 for explaining its application. In solving the above-mentioned problem, the effect when the present invention is used will be described with reference to FIG.

By overlapping the arrangement of the blades 13 and the stacked paper 12, as shown in FIG. 5, the rotation of the bladed roller 14 causes F ₁ (the blades 13 to be stacked) on the paper 1 or the stacked paper 12. subsequent sheet Knock Off paper 1 for leaf interference prevention force) in addition to new F ₂ (force pulling behind hit the blade portion 13 is deposited paper sheet 12 rear), F ₃ (blade portions 13 is a force that strikes and pushes down the piled paper leaf 12).

That the F _2, F ₃ that the influence of two forces, the third
It is considered that problems such as drawing in the back side of the stacked paper sheet 12 and swelling in front of the stacked paper sheet 12 described with reference to the drawing occur. Here, the blade part rotation trajectory regulating member 20 of the present invention regulates the contact position between the blade part 13 and the rear end of the piled paper sheet 12 and at a position where the force of F ₂ and F ₃ is moderately moderated. Since it is attached, problems such as the above-described drawing in of the stacking paper sheet 12 and the rising of the stacking paper sheet 12 in front can be solved.

Further, the blade portion rotation trajectory regulating member 20 of the present embodiment is formed of a simple thin round bar, and is disposed only at two positions at both ends of the bladed roller 14 which is attached in the axial direction as shown in FIG. However, as shown in FIG. 6, the force F can be set by attaching the blade rotation locus restricting member 20a, b or 20a, b, c, or the like, or by partially changing the height or the like. _2, F ₃ can be adjusted appropriately, and it is possible to configure the optimal paper sheet deposition device according to the situation of the paper sheet handling.

〔The invention's effect〕

The blade rotation path regulating member according to the present invention has a simple and low-cost structure such as a thin round bar, can be mounted in a small space, and can prevent interference between the blade and a pile of paper sheets. It is possible to realize a small-sized deposition device that is relaxed and has stable alignment and storage capacity.

In particular, during the feeding operation of paper sheets, it is possible to prevent abnormal conveyance of the paper sheets, etc., and to improve the reliability.

[Brief description of the drawings]

1 is a diagram showing the configuration and operation of the present embodiment, FIG. 2 is a front view of FIG. 1 viewed from the direction of arrow Z, and FIG. FIG. 1 is a partial view of the vicinity of the bladed roller 14 showing the operation of the rotation locus regulating member, FIG. 4 is a diagram for explaining a phenomenon which is problematic in an apparatus using the bladed roller 14, and FIG. 5 is the present invention. Blade rotation path regulating member 20
FIG. 1 is a partial view of the vicinity of the bladed roller 14 showing the effect of FIG.
FIG. 2 is a partially enlarged view of the vicinity of the blade rotation locus restricting member 20 illustrating the application of the blade rotation locus restricting member 20 according to the present invention. DESCRIPTION OF SYMBOLS 1 ... Paper leaf, 2 ... Storage part, 11 ... Holding plate, 12 ... Stacked paper leaf, 13 ... Blade part, 14 ... Bladed roller, 20 ... Blade part rotation locus regulating member.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshikazu Kato 1 Ikegami, Haruoka-cho, Owariasahi-shi, Aichi Prefecture Inside the Asahi Plant of Hitachi, Ltd. (72) Inventor Yutaka Nagasawa 502 Kandachicho, Tsuchiura-shi, Ibaraki Pref. Machinery Research Laboratory, Hitachi, Ltd. (58) Field surveyed (Int.Cl. ⁶ , DB name) B65H 29/22 B65H 29/70 B65H 31/34

Claims (1)

(57) [Claims] 1. A blade roller in which a plurality of blades made of an elastic body are radially arranged above and in contact with a blade roller above a paper sheet storage unit for taking in a paper sheet fed from a preceding stage to a predetermined position. In the sheet stacking mechanism having the sheet stacking means constituted by the holding rollers, the contact position between the bladed roller blade and the already stacked sheet when the bladed roller rotates. Is regulated by providing a blade rotation locus regulating member.