JPS6224341B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for directional sorting of paper sheets such as postal letters or the like that can be selectively sorted into a first conveyance path or a second conveyance path. Regarding equipment.

One typical example of this type of device is the one shown in FIG. That is, the superposition of the first conveyor belt a and the second conveyor belt c, which is superimposed on the first conveyor belt a and is stretched with its running direction side gradually separated via rollers b. A paper sheet discharge path d is formed in which the paper sheets A are held and conveyed by the sections and are conveyed in the side direction. moreover,
A third conveyor belt e is stretched overlappingly on the side of the first conveyor belt a in the running direction to form a first conveyance path f, and a third conveyor belt e is stretched on the side of the second conveyor belt c in the running direction. A second conveyance path h is formed by stretching the four conveyor belts g so as to overlap each other. Furthermore, the terminal end of the paper sheet discharge path d and the first and second conveyance paths f,
A pinch roller j is provided outside the middle of the first conveyor belt a corresponding to the space i formed between the first conveyor belt a and the starting end of the first conveyor belt a.

When paper sheets A that are carried out from the paper sheet discharge path d are carried into the first conveyance path f, the pinch roller j is kept at the position shown by the two-dot chain line without operating the drive source (not shown); If the paper sheet A is to be moved straight as it is, and if it is to be carried into the second conveyance path h, a drive source (not shown) is operated to move the paper sheet A to the pinch roller j.
is displaced to the position shown by the solid line, and the middle part of the first conveyor belt a is pushed into the space i to guide the sheet A to the second conveyance path h.

However, when the paper sheet A has a bend as shown by the solid line when being taken into the second conveyance path h and conveyed, the first conveyance belt a is simply moved by the pinch roller j. Just by bending it, it is not possible to reliably guide it to the second conveyance path h side.
There is a problem that the paper may be taken into the first conveyance path f by mistake, or it may collide with the folded portions of the third and fourth conveyor belts e and g, resulting in the so-called jamming phenomenon in which the paper gets stuck in the space i.

The present invention has been made based on the above-mentioned circumstances, and an object of the present invention is to have a simple structure while ensuring that even paper sheets with curls can be reliably transferred to the first conveyance path or the second conveyance path. It is an object of the present invention to provide a directional sorting device for paper sheets that can sort paper sheets.

An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. In the figure, 1 is a paper sheet delivery path for transporting paper sheets A in a three-dimensional state and in the side direction.
This paper sheet discharge path 1 includes an endless first conveyor belt 2
and an endless second conveyor belt 4 which is superimposed on the first conveyor belt 2 and stretched across the rollers 3 so as to be gradually separated from each other in the running direction. .

Furthermore, between mutually opposing surfaces of the first and second conveyor belts 2 and 4 on the running direction sides, a third conveyor belt 6 is folded back via rollers 5 so as to overlap with the first conveyor belt 2. , a fourth conveyor belt 8 which is folded back via rollers 7 so as to overlap with the second conveyor belt 4 is stretched, and the superposition of the first conveyor belt 2 and the third conveyor belt 6 is The first conveying path 9 is connected to the second conveying belt 4 and the fourth conveying belt 4.
A second conveyance path 10 is formed at the overlapping portion with the conveyor belt 8 .

Also, the outside of the middle part of the first conveyor belt 2 corresponding to the space 11 formed between the terminal end of the paper sheet discharge path 1 and the starting ends of the first and second conveyance paths 9 and 10 In order to press the pinch roller 12 as a belt pressing member against the first conveyor belt 2 as necessary,
As shown by the two-dot chain line in the figure, a belt pushing mechanism 13 that pushes into the space 11 is arranged. This belt pushing mechanism 13 includes a pinch roller 12 on the free end side of a support member 16 that can swing using a rotary solenoid 15 disposed on the lower surface side of a lower guide plate 14 that supports the lower end surface of the paper sheet A as a drive source. It is configured so that it can be rotated freely.

Further, on the free end sides of the arm portions 16a and 16b of the support member 16 that supports the upper and lower ends of the pinch roller 12, a strip of paper is provided at a distance from both the upper and lower end surfaces of the first conveyor belt 2. Leaf guide bodies 17, 17 are attached. When the pinch roller 12 is in the non-belt pressing position (solid line position in FIG. 2), the paper sheet guide members 17, 17 have their leading end guide portions 17a, 17a almost in contact with the outer surface of the first conveyor belt 2. When the pinch roller 12 is in the belt pressing position (the position indicated by the two-dot chain line in FIG. 2), the tip guide portion 1 intersects with the first conveyor belt 2.
It projects into the space 11 of 7a, 17a.

Therefore, when it is determined that the paper sheet A carried out from the paper sheet discharge path 1 is the paper sheet A that should be taken into and conveyed to the first conveyance path 9, the belt pushing mechanism 13 It is in a non-operating state, and the pinch roller 12 and sheet guide bodies 17, 17 are maintained at the solid line position in FIG. 2. Therefore, the paper sheets A travel straight along the linear first conveyance belt 2 and are carried into the first conveyance path 9. At this time, paper sheet A is on the left,
Even if there is a curve in either direction on the right, the paper sheets can be carried smoothly into the first conveyance path 9 because the conveyance direction of the paper sheet conveyance path 1 and the starting end side of the first conveyance path 9 coincide. That will happen.

In addition, paper sheets A are carried out from the paper sheet carrying path 1.
If it is determined that the sheet A is to be taken into the second conveyance path 10 and conveyed, the belt pushing mechanism 1
3 operates, and the pinch roller 12 is displaced to a position where it pushes the first conveyor belt 2 into the space 11 as shown by the second two-dot chain line, and at the same time, the leading edge guides of the sheet guide bodies 17, 17 are moved. Parts 17a, 17a
protrudes into the space 11. Therefore, the paper sheets A are stored in the space 11 of the first conveyor belt 2.
The part pushed into the sheet guide body 17,1
7 to be transported along the second conveyor belt 4. At this time, not only when the leading edge of the paper sheet A is straight or curved to the left, but also when the leading edge of the paper sheet A is curved to the right, the upper and lower ends of the paper sheet A are connected to the paper sheet guide bodies 17, 17. Since it is forcibly guided to the second conveyance belt 4 side by the conveyance belt 4, it is reliably carried into the second conveyance path 10.

Note that the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

As explained above, according to the present invention, although the configuration is simple, even curly paper sheets can be reliably sorted to the first conveyance path or the second conveyance path. play.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of a conventional device, FIG. 2 is a schematic plan view showing an embodiment of the present invention, and FIG. 3 is a schematic side view. A...Paper sheets, 1...Paper sheets discharge path, 2...First conveyor belt, 4...Second conveyor belt, 6...Third conveyor belt, 8...Fourth conveyor belt, 9...First conveyor belt Conveyance path, 10...Second conveyance path, 11...Space, 12
... Belt pressing body (pinch roller), 13... Belt pushing mechanism, 17... Paper sheet guide body, 17a... Leading edge guide section.

Claims (1)

[Claims] 1 Paper sheets formed by the overlapping part of a first conveyor belt and a second conveyor belt that is superimposed on the first conveyor belt and stretched with the running direction side gradually separated. The same type of exit route and the first and second above-mentioned
The third and fourth conveyor belts are stretched between the side portions in the running direction of the conveyor belt and overlapped with each other between these side portions in the running direction.
The first,
A second conveyance path, and an outer side of the first conveyance belt corresponding to a space formed between the starting ends of the first and second conveyance paths and the terminal end of the paper sheet discharge path. By positioning the belt pressing body and pushing the first conveyor belt into the space by the belt pressing body as necessary, the paper is carried out from the paper sheet discharge path and is about to travel straight toward the first conveyance path. a belt pushing mechanism that guides the leaves to a second conveyance path side; and a belt pushing mechanism that intersects with the first conveyance belt and protrudes into the space with the displacing operation of the belt pressing body of the belt pushing mechanism. 1. A paper sheet directional sorting device comprising: a paper sheet guide body that guides paper sheets to be sorted into a second conveyance path along a second conveyance belt.