JPH0142701B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a high-speed instantaneous large-volume dosing machine.

As a ball dispenser for pachinko parlors, a ball dispenser that counts and discharges a predetermined number of balls by horizontal rotation at a constant angle of an alignment board, which has a number of radial alignment grooves on the board surface into which multiple balls enter and align, has been put into practical use. ing.

In this type of ball dispensing machine, the balls that are discharged as the alignment plate rotates almost instantaneously flow from the alignment groove to the ball receiver, and by the time they pass the ball receiver and reach the next ball receiver, the balls have passed through the alignment groove. Inflow alignment of balls is performed.

By the way, if you connect this sorting board to a motor to speed up the rotation of the sorting board and set a large rotation angle to increase the number of balls ejected in one operation, Naturally, the amount of balls flowing into the center of the alignment board increases, but most of these balls are just falling towards the board surface, and after colliding with the board surface and losing most of their kinetic energy, The centrifugal force generated by the rotation of the alignment plate acts strongly to align the particles into the alignment grooves.

At this point, it is not always possible for all balls to roll smoothly and properly due to dirt and dust on the balls, poor rolling of the balls due to a mixture of broken balls, balls being pushed apart at the entrance of the alignment groove, etc. If the balls do not necessarily flow quickly into the alignment grooves, and the movement of the balls is slow no matter how strong the centrifugal force is, the balls may reach the ball socket without being able to flow into the alignment grooves in time, resulting in a counting error. It causes

This invention was made in view of the above-mentioned points, and the entire weight of the group of balls piled up through the ball introduction hole acts on the balls flowing into the alignment groove in addition to the centrifugal force caused by the rotation of the alignment plate. The purpose of this invention is to provide a highly efficient ball dispensing machine by making the movement of the entire group of balls smooth.

Embodiments of the present invention will be described below with reference to the drawings.

1 is an alignment board, and 2 is a cover.

The alignment plate 1 is horizontally rotatably supported on a machine base 4 by a support shaft 3 vertically disposed at the center of its lower surface, and the support shaft 3 is connected to a motor 6 via a bevel gear 5.

A large number of alignment grooves 7 are formed on the upper surface of the alignment plate 1 by standing radially on the partition wall 8, leaving the center part and gently sloping downward toward the periphery, into which a plurality of balls A enter and align. There is.

The cover 2 is made of a transparent material, and is provided with a ball stopper ridge 10 on the lower surface of the cover corresponding to the ball receiving hole 9 formed on the outer peripheral wall of the machine base, which fits into the row of balls in the alignment groove. With one rotation, the balls A from this ball stopper protrusion 10 to the periphery of the alignment board flow out into the ball receiving port 9.

A ball introduction hole 11 is provided in the center of the cover 2,
A ball tank 12 that accommodates a large number of balls is connected to this ball introduction hole 11.

In this invention, a cover 2 is provided at the center of the alignment board 1.
A ball guide protrusion 13 in the shape of a mountain is protruded from the ball introduction hole 11 toward the ball tank 12.

Therefore, in this invention, the group of balls in the ball tank 12 continues from between the ball introduction hole 11 of the cover 12 and the ball guide protrusion 13 of the alignment board 1 to the alignment groove 7, and the ball group in the ball tank 12 continues to the alignment groove 7. During the movement of replenishing balls A to the alignment board surface during the ejection operation, the entire ball group moves in a series and smoothly follows the downward flow, and there is no movement of the balls that would cause them to collide with the alignment board surface, and the ball A is placed on the alignment board 1. In this case, the weight of the balls in the ball tank 12 acts as a constant pressing force on the balls aligned in the alignment groove 7 and all the balls that will be aligned in the future, even when the alignment plate 1 rotates.
The inflow of the balls A into the alignment groove 7, together with the centrifugal force caused by the rotation of the alignment plate 1, completes the alignment in an instant, regardless of dirt on the ball surface, broken balls, etc., and no counting errors occur. In addition, there is no movement of the balls that would cause them to collide with the alignment board surface due to the downward movement of the balls from the ball tank, and there is no noise, which greatly improves the functionality of the high-speed instantaneous large-volume ball dispensing machine.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway plan view, and FIG. 2 is a longitudinal sectional view. 1... Alignment board, 2... Cover, 3... Support shaft, 4...
... Machine base, 5 ... Bevel gear, 6 ... Motor, 7 ... Alignment groove, 8 ... Partition wall, 9 ... Ball socket, 10 ... Ball stop protrusion, 11 ... Ball introduction port, 12 ... Ball tank, 13...Ball guiding protrusion.

Claims (1)

[Claims] 1 A large number of alignment grooves into which a plurality of balls enter and align are provided radially on the board surface, the front surface of an appropriate number of alignment grooves is opened to the ball receiving opening, and an alignment plate that rotates horizontally, and a ball is placed in the center covering the alignment plate. In a ball dispensing machine equipped with a cover having an introduction hole and a ball stop protrusion on the lower surface that corresponds to the ball receiving hole and restricts balls discharged from the alignment groove, a cover is provided in the center of the plate surface of the alignment plate. A ball guiding structure in a high-speed instantaneous large-volume ball dispensing machine, characterized in that a protruding chevron-shaped ball guiding protrusion is provided at the ball introduction port.