JPH0134672B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper sheet sorting device for sorting paper sheets such as postal letters.

As this type of paper sheet sorting device, for example, the one shown in FIG. 1 is known. That is, 1 in the figure is a conveyance path, and on this conveyance path 1 there is a first
and second width selection means 2, 3 are provided. Furthermore, a redirect conveyance path 4 is provided in the intermediate portion of the conveyance path 1 .

Therefore, among the paper sheets 5 conveyed by the conveyance path 1 in an upright position, those having a width dimension equal to or more than a predetermined size are selected by the first and second width sorting means 2 and 3. Then, the paper is width-sorted and sent to a reject conveyance path 4 to be rejected as shown by the broken line arrow, and those having a predetermined width are conveyed to a predetermined location by the conveyance path 1.

However, in the past, if the first width sorting means 2 missorts the paper sheets 5, for example, if another paper sheet gets into the unsealed paper sheet, the paper sheet of a predetermined width size is Despite this, there was an inconvenience that the paper sheets were incorrectly sorted as wide paper sheets, and all the paper sheets that were once incorrectly sorted were rejected.

The present invention has been made focusing on the above circumstances,
The purpose is to provide a paper sheet sorting device that can reduce the number of paper sheets that are incorrectly sorted by re-sorting them even if they are once incorrectly sorted by the first width sorting means. It is something.

An embodiment of the present invention will be described below with reference to FIGS. 2 to 5. In the figure, reference numeral 11 denotes a first conveyance path, and the first conveyance path 11 is composed of a roller 12 and a belt 13 that is stretched around the roller 12. Furthermore, a reject conveyance path 14 as a second conveyance path is provided in the intermediate portion of the first conveyance path 11 . First and second width sorting means 15 and 16 are provided on the first conveyance path 11, and re-sorting means 17 is provided on the reject conveyance path 14, respectively. The first and second width sorting means 15, 16 and the re-sorting means 17
is constructed as shown in FIG. That is, reference numerals 18, 18 are top plates supported by pillars 19, 19, and a pair of rollers 20, 20 are attached to these top plates 18, 18, respectively. 21 is being passed. Paper sheets 22a having a width larger than a predetermined width are conveyed by the clamping pressure conveying belts 21, 21, and are lifted and sorted. Further, the output side of the re-sorting means 17 and the output side of the second width sorting means 16 are connected via a recovery path 23. Note that 24 is a shifting unit that corrects the overlapping of the paper sheets 22 and transports them one by one, and supplies the paper sheets one by one to the second width sorting means 16. Reference numeral 25 denotes guide plates erected on both sides of the conveyor belt 13.

In the above-described configuration, when the paper sheets 22 are placed in an upright position on the belt 13 of the first conveyance path 11 and the belt 13 is run, the paper sheets 22...
2... is sent to the first width sorting means 15, where,
Among the paper sheets 22..., paper sheets 22a whose width dimension is equal to or larger than a predetermined size are pinched and conveyed by the clamping conveyance belts 21, 21 as shown in FIG. Sent to 14th. Further, a large amount of paper sheets may be supplied to the first width sorting means 15 in some cases. Therefore, the first width sorting means 15 is likely to cause erroneous sorting. The paper sheets 22 that have passed through the first width sorting means 15 are supplied to the shifting section 24. The shifting section 24 shifts the transported paper sheets and supplies them one by one to the second width sorting means 16. As a result, the second width selection means 16
More accurate sorting can be achieved. Further, the second width sorting means 16 sends the paper sheets 22a having a predetermined width or more to the reject conveyance path 14 as shown by the broken line arrow. By the way, when the paper sheets 22 are width-sorted by the first width sorting means 15, for example, as shown in FIG. If the paper sheets 22b are crowded, the paper sheets 22b having a predetermined width are conveyed as wide paper sheets by the pinch pressure conveyance belts 21, 21, erroneously sorted, and sent to the reject conveyance 14. The paper sheet 2 that was incorrectly selected and sent to the reject conveyance path 14
2b is the re-sorting means 1 by the redirect conveyance path 14;
Paper sheets 22b having a predetermined width dimension are sent to the paper sheet 7, are re-sorted here, are sent to the first conveyance path 11 as shown by the solid line arrow via the recovery path 23, and have passed through the second width sorting means 16. It is then transported to a designated location. Further, paper sheets 22a having a width larger than a predetermined width sent to the reject conveyance path 14 are transferred to the reject conveyance path 1.
4, it is rejected to a not-shown accumulation section.

As described above, the paper sheets 22b that have been erroneously sorted by the first width sorting means 15 and sent to the reject conveyance path 14 are re-sorted by the re-sorting means 17 and collected in the first conveyance path 11. , paper sheets 22
It is possible to significantly reduce the mis-selection of...

Furthermore, since the paper sheets 22 are sorted by the re-sorting means 17, the load on the second width sorting means 16 can be reduced and its sorting ability can be improved.

As explained above, in the present invention, paper sheets that have been erroneously sorted by the first width sorting means and sent to the second conveyance path are sorted by the re-sorting means, and are then sorted through the recovery path. Since the paper sheets are collected in the first conveyance path, the desired paper sheets can be reliably sorted without having to reject all the paper sheets that have been erroneously sorted as in the past. Further, paper sheets that have been incorrectly sorted by the first width sorting means and conveyed as they are through the first conveyance path are re-sorted by the second width sorting means and taken out to the second conveyance path. Therefore, the sorting accuracy can be further improved.

Furthermore, since the paper sheets sorted by the first and second width sorting means are sent out in common to the second conveyance path, there is a reject conveyance path for each of the first and second width sorting means. without the need for
This has the effect of simplifying the structure.

[Brief explanation of drawings]

Figure 1 is a plan view showing a conventional example, Figures 2 to 5
The figures show an embodiment of the present invention, in which Fig. 2 is a plan view showing a paper sheet sorting device, Fig. 3 is a partially cutaway perspective view of the width sorting means, and Fig. 4 is a predetermined width sorting device. FIG. 5 is a side view of the width sorting means showing the time of sorting paper sheets larger than the width dimension, and FIG. 5 is a side view of the re-sorting means showing the time of sorting paper sheets inserted into opened paper sheets. 22...Paper sheets, 11...First conveyance path, 1
5, 16...Width sorting means, 14...Second transport path, 17...Re-sorting means, 23...Recovery path.

Claims (1)

[Claims] 1. A first conveyance path for conveying paper sheets in an upright position, and a first conveyance path provided sequentially on this first conveyance path.
first and second width sorting means for width sorting the paper sheets conveyed by the conveyance path; A paper sheet sorting device comprising means for correcting overlapping of paper sheets conveyed by a first conveyance path, the first width sorting device being provided independently of the first conveyance path. a second conveyance path for conveying the paper sheets sorted by the means, and a re-sorting section provided on the second conveyance path for re-sorting the paper sheets that have been erroneously sorted by the first width sorting means. and a discharge side of the re-sorting means and a discharge side of the second width sorting means are connected, and paper sheets sorted by the re-sorting means are collected into the first conveyance path. A paper sheet sorting device characterized by comprising a filter collection path.