JPH0262455B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper sorting device that is employed in, for example, a mail sorting, sorting, stamping machine, etc., and sorts paper sheets such as postcards and envelopes while conveying them.

After a stamp attached to a standard-sized paper such as a postcard or envelope is detected by the stamp detection section, when the stamp is conveyed to the stamping section and stamped, the paper is moved to place the stamp in a fixed position on the paper. It is necessary to align the leaves during transportation.

Therefore, in the past, paper sheet alignment devices shown in FIGS. 1 and 2 have been employed. That is, 1 is a conveyor belt that runs at an angle downward with respect to the conveyance direction (arrow direction) of paper sheets P,
A guide plate 2 is disposed facing the belt surface of the conveyor belt 1. This guide plate 2 has a plurality of through holes 3... and each through hole 3.
... are provided with rubber rollers 5 with a portion of their outer peripheral surfaces protruding into the conveyance path 4. Then, for example, the paper sheets P conveyed from the stamp detection section 6 are conveyed while being held between the conveyor belt 1 and the rubber rollers 5, and the lower ends of the paper sheets P are aligned by the reference belt 7. It is configured to be conveyed to the next step, for example, to the stamp section 8.

At this time, the guide plate 2 is configured to move freely according to the thickness of the paper sheet P, and each rubber roller 5 is configured to be rotationally driven separately from the conveyor belt 1.

However, since each of the rubber rollers 5 is cylindrical and has corners, the rubber rollers 5 shown in FIGS.
As shown in the figure, the corner of the paper sheet P hits the bottom surface of the rubber roller 5 and stops, or the rubber roller 5
The corner of the paper sheet P may be drawn inward by the rotation of the rubber roller 5 into the gap between the paper sheet P and the guide plate 2, and the paper sheet P may become jammed during conveyance or the paper sheet P
The disadvantage is that it can cause damage.

This invention was made in view of the above-mentioned circumstances, and its purpose is to be able to smoothly and reliably align paper sheets while conveying them, and to avoid damaging the paper sheets. The present invention aims to provide a device for aligning paper sheets.

The present invention will be described below based on an embodiment shown in the drawings. Reference numeral 11 in FIGS. 5 and 6 is a conveyance belt, which is stretched between a pair of rollers 12, 12, and runs at an angle downward with respect to the conveyance direction (arrow direction) of paper sheets P. It's becoming like that. A guide plate 13 is provided opposite to the belt surface of the conveyor belt 11, and is supported so as to be movable according to the thickness of the paper sheet P.
Further, a bending portion 14 is provided at one end of the guide plate 13, that is, the side where paper sheets P are carried in, and a plurality of through holes 15 are bored in the plate surface. These through holes 15 have an octagonal shape to match the shape of a rubber roller to be described later, and each of these through holes 15 has a rubber roller 16 whose outer peripheral surface partially protrudes from the through hole 15 toward the conveyance path 17 side. Let it be. As shown in FIG.
a, 16a are provided, and these inclined surfaces 16a, 16
a protrudes from the through hole 15 into the conveyance path 17.
Further, these rubber rollers 16 are inclined in the same direction and at the same angle as the conveyor belt 11, and rotate in the direction of the arrow in conjunction with a drive mechanism (not shown) via a rotating shaft 18. There is. Further, a reference belt 19 stretched horizontally is provided at the lower part of the conveyance path 17, and a conveyance belt 2 is provided on the carry-in side and the carry-out side of the conveyance path 17.
0 and 21 are provided.

Next, the operation of the paper sheet alignment device will be explained. For example, when the paper sheet P detected by the stamp detection section is carried by the conveyor belt 20 into the conveyance path 17 between the conveyor belt 11 and the guide plate 13, the paper sheet P is transferred to the conveyor belt 11 and While being held between the rubber rollers 16, it is guided downward as the rubber rollers incline. Therefore, the lower ends of the paper sheets P hit the reference belt 19 and are gradually conveyed and aligned, and the aligned paper sheets P are transferred to the conveyor belt 19.
1, it is sent to the next stamp section.

At this time, the corners of the paper sheet P are
As shown in the figure, the rubber roller 16 is chamfered even when it touches the lower surface of the rubber roller 16, so that the inclined surfaces 16a, 1
6a, the paper sheet P slides along the inclined surface 16a and is guided toward the conveyor belt 11 and enters between the rubber roller 16 and the conveyor belt 11, or
It passes under the rubber roller 16. Therefore, the corners of the paper sheet P are not likely to enter the gap between the guide plate 13 and the rubber roller 16, and the sheet P is smoothly run. Moreover, since the rubber roller 16 has inclined surfaces 16a, 16a on both sides, no matter what position or angle the paper sheet P is carried in, it can be made to run smoothly with the same effect as described above.

Note that in the above embodiment, the corners of the outer peripheral surface of the rubber roller were chamfered to form an inclined surface.
As shown in FIG. 10, both sides of the rubber roller 22 may be chamfered to form arcuate surfaces 23, 23, or the rubber roller 22 may be formed of not only a rubber roller but also a synthetic resin material.

As explained above, in this invention, the paper sheets are conveyed and aligned while being sandwiched between the conveyor belt that conveys the paper sheets and the driven roller whose outer peripheral surface is chamfered. Even if the corner of the paper sheet hits the side of the roller, the chamfered part allows the corner of the paper sheet to be guided toward the conveyor belt side or passed through, preventing the sheet from getting jammed during conveyance. The effect is that the alignment can be performed smoothly and reliably without causing damage due to strain.

[Brief explanation of drawings]

Fig. 1 is a front view showing a conventional paper sheet alignment device, Fig. 2 is a plan view, Fig. 3 is a plan view for explaining the operation, and Fig. 4 A, B, and C are the same. 5 is a front view showing an embodiment of the invention, FIG. 6 is a plan view, FIG. 7 is a front view of the rubber roller, and FIG.
9A, B, and C are front views showing another embodiment of the rubber roller. FIG. 10 is a front view showing another embodiment of the rubber roller. 11...Conveyor belt, 16...Rubber roller (roller).

Claims (1)

[Scope of Claims] 1. A reference body having a horizontal surface, a conveyor belt that is provided diagonally with respect to the reference body and conveys paper sheets, and a conveyor belt that conveys the paper sheets at random with respect to the conveyor belt. A paper sheet aligning device comprising a feeding section, a guide plate provided opposite to the belt surface of the conveyor belt, and contact with the conveyor belt through holes provided on the guide plate. a roller which is provided as a roller and is driven to rotate while holding the paper sheet between the conveyor belt and has a chamfered outer peripheral surface; A paper sheet aligning device characterized in that the paper sheet alignment device is inclined along the oblique direction with respect to the reference body by the oblique angle.