JPS6343568Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a paper sheet counting machine, in particular, which eliminates the sticking of paper sheets to each other during counting, enables reliable counting of each sheet one by one, and prevents paper sheets from being damaged. Regarding the constructed paper sheet counting machine.

As shown in FIG. 3, this type of conventional sheet counting machine has an air nozzle (not shown) that injects an air stream 14 parallel to the sheet surface of the sheet bundle 1 that has moved to the counting position. In addition, in order to form a gap 13 between the paper sheet bundle 1 held at the counting position and the holder 2 as a release for the paper sheets separated by the air flow from the air nozzle, the holder 2 A protrusion 11 is fixed to the sheet pressing surface of the paper sheet.

However, when the suction head 7 rotates to turn over the sheets, the edges 12 of the suction head 7 push the bundle of sheets, so if the sheets are weak, the protrusion of the holder 2 11 and the flat surface without causing any damage.However, in the case of stiff paper sheets, it is difficult to deform the paper flexibly along the protrusion 11, so the edge portion 12 of the suction head 7 It had the disadvantage of being scratched.

For this reason, we have conducted various experiments and found that when counting paper sheets that are weak, it is better to provide a protrusion of a certain height on the holder to improve counting accuracy. It was found that the presence or absence of a protrusion on the holder had no effect on counting accuracy.

Therefore, the present invention has been developed without compromising counting accuracy.
This was done to eliminate the drawbacks of the conventional paper sheet counters of this type mentioned above, and a movable protrusion is provided on the paper sheet pressing surface of the holder to count stiff paper sheets. At times, the height of the protrusion protruding from the holder surface is lowered when the stack of paper sheets pushes the protrusion, which reduces the deformation of each paper sheet being counted and causes damage to the paper sheets. This will be explained in detail below with reference to the drawings.

FIG. 1 is a plan view showing the main parts of the paper sheet counting machine of the present invention, and FIG. 2 is a partially enlarged view of the main parts as seen from the direction A-A' in FIG. In FIGS. 1 and 2, the paper sheet counting machine is configured to hold a bundle of paper sheets 1 at a counting position by a spring 5 which is wound around a support shaft 4 between a holder 2 and a crank pin 3. . In addition, a plurality of suction heads 7 are arranged in an annular manner in the rotary cylinder 6, and the suction heads 7 rotate while performing a suction action by a vacuum pump (not shown), absorb and separate paper sheets one by one, and count them. is configured to do so. A through hole 15 is provided in a part of the holder 2, and a protrusion 10 fixed to one end of an elastic body 9 made of a plate spring or the like arranged along the holder 2 is inserted into the through hole 15. However, the tip of this protrusion 10 is formed so as to protrude from the plane of the holder 2 toward the suction head 7 side.

In this state, the suction head 7 sucks and separates the paper sheets 8 one by one and counts them. At this time, in the case of weak paper sheets, the height of the protrusion 10 will not be lowered,
Even if the edge 12 of the suction head 7 comes into contact with the paper sheet 8, the paper sheet 8 is bent along the surfaces of the protrusion 10 and the holder 2, so that it is not easily damaged. Furthermore, even when counting stiff paper sheets, when the suction head 7 sucks the paper sheets 8, the edge portion 12 presses the paper sheet bundle 1, so that the protrusion 10 protruding on the surface of the holder 2 is It is pushed in the direction of the arrow and its height decreases. Therefore, the bending of the bundle of paper sheets 1 due to the projections 10 of the paper sheets 8 is reduced, so that when the suction head 7 suctions the paper sheets 8, the edge portion 12 of the suction head 7
It is possible to prevent the paper sheet 8 from being damaged when it comes into contact with the paper sheet 8.

Therefore, according to the present invention, both weak and stiff paper sheets can be counted without reducing the counting accuracy, and moreover, the paper sheets can be counted without causing folding damage. This has the effect of being able to be counted.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the main parts of the paper sheet counter of the present invention, Fig. 2 is a partially enlarged view of the main parts seen from the direction A-A' in Fig. 1, and Fig. 3 is a conventional paper sheet counter. FIG. 2 is a partially enlarged view of the main parts of the paper sheet counting machine. 1... Bunch of paper sheets, 2... Holder, 3... Crank pin, 4... Support shaft, 5... Spring, 6...
Rotating tube, 7... Suction head, 8... Paper leaf, 9...
Elastic body, 10...Protrusion, 11...Protrusion, 12
...Edge portion, 13...Gap, 14...Air flow.

Claims (1)

[Scope of utility model registration request] The paper sheets held by the paper sheet holding device consisting of a holder and a crank pin are moved to a counting position facing the suction surface of a suction head that is connected to a vacuum pump, and the suction head picks up one sheet of paper sheet. In a paper sheet counter that counts sheets by suction and separation, a through hole is provided in a part of the holder, and one end of an elastic body is disposed in the through hole along the holder on the opposite side from the suction head. A protrusion fixed to the holder is inserted so that its tip protrudes toward the suction head by a predetermined height above the plane of the holder, and the height of the protrusion is variable depending on the stiffness of the paper sheet. A paper sheet counter characterized by: