JPS5861B2 - Counting suction shaft in paper sheet counting machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a counting suction shaft in a paper sheet counting machine.

In detail, the suction shaft of a paper sheet counting machine that separates and counts paper sheets one by one from a group of paper sheets loaded into a holder using a plurality of suction shafts arranged on a rotary cylinder so as to rotate on their own axis. Regarding improvements.

In other words, the outer periphery of the suction shaft is configured in a special shape so that the paper sheets that are elastically pressed against the suction shaft will not be agitated when the suction shaft is turned over, thereby preventing noise during counting. The purpose is to improve counting accuracy.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a plan view of the main parts of a paper sheet counter.
is a holder that can be rotated around the shaft 2, and can be rotated to one side so that the paper sheet group 3 can be set in the open state.When the start button 4 is pressed, the holder rotates along the guide plate 5. It is constructed in the same manner as the conventional structure so that the presser bar 6 can come into contact with and support the center of the opposite side of the paper sheet group 3 at the set position.

Reference numeral 7 denotes a rotating cylinder constructed on the side of the holder 1, which is constructed in the same manner as the conventional structure so as to rotate in the direction of arrow A around the center 0.
A total of five suction shafts A are attached to five equally distributed positions on the upper surface of the rotary cylinder 7 on the concentric circle with the center 0, and each suction shaft A is rotated in the direction of the arrow with the rotation center P as the axis. Provided for.

In each suction shaft A, a suction port 8 is formed in a part of its circumferential surface that comes into contact with paper sheets, and the circumferential surface of the suction port 8 is formed into an arcuate concave surface portion 9. One circumferential surface 12 from the rear corner 10 in the rotation direction to the protrusion 11 on the circumferential surface portion on the opposite side of the suction port 8 is formed into a curved surface whose diameter a from the rotation center P gradually increases. The other circumferential surface 14 from the front corner 13 to the protrusion 11 is formed to have a smaller diameter than the one circumferential surface 12, and the corner 13 extending from the curved corner 15 near the corner 13 is obtuse. form.

The suction shaft a indicated by a solid line in FIG. 3 shows a conventional type, and its arcuate concave portion 9 is formed in a direction larger in diameter than the arcuate concave portion 9 of the present invention, and the circumferential surface from the rear corner portion 10' in the rotational direction is 1
2' is formed into a curved surface whose diameter from the center of rotation gradually decreases, contrary to the one circumferential surface 12 of the present invention.

Note that in FIG. 1, other parts are the same as the conventional structure and are therefore omitted from illustration.

Therefore, when counting, as shown in Figure 1, the paper leaf group 3
is set, and the tip side of the paper sheet group 3 is brought into contact with the suction shaft A, and then started.

That is, as the rotary cylinder 7 revolves as shown by the arrow A, each suction shaft A rotates on its own axis as shown by the arrow opening, and as shown in FIG. A sheet of paper is sucked as it is by the suction from the suction port 8 while in contact with the sheet of paper, and in the suctioned state, the suction shaft A moves in the direction of arrow A while rotating in the direction of the arrow port. One peripheral surface 12 of A presses the sheet against the sheet group 3 with its curved surface while bending the sheet, and bends the sheet from the presser rod 6 portion to suck the sheet away from the arcuate concave surface portion 9.
The sheet of paper is separated from the corner 10 in a state where it slides away.

Similarly, the next suction shaft A, which turns over the next one, rotates while pressing the previous one easily with the other circumferential surface 14.

That is, since one circumferential surface 12 of the suction shaft A that is used for suction and turning over rotates and presses against the sheet group 3, the portion remaining on the holder 1 side is not agitated and can maintain the set state in the fixed position. can.

In this way, the present invention provides a paper sheet system for counting paper sheets by suctioning and separating each sheet one by one from a group of sheets loaded into a holder using a plurality of suction shafts arranged on a rotary tube so as to rotate on their own axis. In the counting machine, a curved surface with a diameter that gradually increases from the center of rotation on one side of the circumferential surface of the suction shaft from the rear corner in the rotational direction of the arcuate concave portion of the suction port portion to the protruding portion on the opposite peripheral portion of the suction port. Since the other circumferential surface on the opposite side is formed to have a smaller diameter than the one circumferential surface, one circumferential surface of the suction shaft presses the group of paper sheets on the holder side one by one without fanning them. It is possible to turn and rotate the paper sheets on the holder side, so that the paper sheets on the holder side can always maintain a set posture in a fixed position without shifting. On the other hand, it can be rotated so that the surrounding surface can be easily separated and pressed.
It has a feature that the counting accuracy can be reliably improved by preventing the posture of the group of paper sheets from being disturbed.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, and FIG. 1 is a plan view of the main parts;
FIG. 2 is a plan view of the suction shaft, and FIG. 3 is an explanatory diagram showing a comparison with a conventional example. 7...Rotating tube, A...Shaft, 1...Holder, 3...
Paper leaf group, 8... Suction axis, 9... Arc-shaped arcuate portion, 10...
Rear corner, 11... protrusion, 12... one peripheral surface, P...
..., 14...the other peripheral surface.

Claims (1)

[Claims] 1. In a paper sheet counting machine that performs counting by suctioning and separating paper sheets one by one from a group of paper sheets loaded into a holder using a plurality of suction shafts arranged so as to rotate on their own axis on a rotating cylinder, the suction shafts One peripheral surface from the rotation direction rear corner of the arcuate concave part of the suction port part to the protruding part in the opposite peripheral part of the suction port is formed into a curved surface with a diameter that gradually increases from the rotation center, and A counting suction shaft characterized in that the other circumferential surface is formed to have a smaller diameter than the one circumferential surface.