JPH0233820Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pachinko ball polishing machine, and more specifically, to a small pachinko ball polishing machine suitable for installation in each island of a pachinko game parlor.

Conventional pachinko ball polishing equipment led pachinko balls from all stores to the basement, where they were intensively polished, and then lifted to the ceiling using a large lift, and the pachinko balls were supplied to each island within the store via a distribution device. However, not only did the ball polishing machine itself become larger, but the pachinko ball distribution device required a large amount of equipment cost.

In contrast, as shown in Japanese Patent Publication No. 56-18226, the present applicant has proposed a system in which a circulation loop is formed for each island and a small polishing machine is placed somewhere in the circulation loop. is proposed.

The present invention is suitable for such an island circulation system, and is a small ball with a simple structure and excellent polishing efficiency, in which the balls to be polished are taken in and the polished balls are taken out continuously. The purpose is to provide polishing machines.

Embodiments of the present invention will be described below with reference to the drawings. The fixed container 1 has a cylindrical shape, such as a cylindrical shape or a hexagonal shape,
It has an inlet 2 for pachinko balls and an inlet 3 for abrasive media at the upper part, and is supported horizontally so that the other end is slightly higher than one end (the left end in the drawing). It can be adjusted within a minute range of 10° to 10°.

Inside the fixed container 1, a rotating body 4 is rotatably supported by ball bearings 5 and 6 at both ends thereof, and one end 7 of the rotating body 4 is closed and connected to two universal joints 8 and 9. It engages with the output shaft of a motor 11 with a speed reduction mechanism via a link 10 whose length is adjustable, and is driven to rotate. The posture of the fixed container 1 is adjusted using the universal joint 8 or its vicinity as a fulcrum.

The rotating body 4 has a portion 4A having a relatively small diameter extending from one end to the entire center portion, and a portion 4B having a relatively large diameter due to the stepped portion 12 occupying the remaining portion from the other end. At one end of the rotating body 4, bucket-shaped protrusions 13...13 are provided radially, as shown in the cross-sectional view in FIG. 2, and each protrusion is provided with an opening 14...14 through which pachinko balls can pass. A valve 15...15 is attached to each opening to constitute a pachinko ball introducing device. A helical body 16 is provided on the inner surface of the narrow portion 4A at the center of the rotating body to transfer the pachinko balls toward the other end by rotation, and this constitutes a first transfer tool. A chute 17 for taking out pachinko balls in the narrow portion 4A of the rotating body is fixedly supported on the other end surface 18 of the fixed container 1 so that its starting end faces the stepped portion 12 and its terminal end descends. A portion of the bottom surface of the chute 17 located inside the fixed container 1 is formed into a slit or mesh-like shape that sieves down the polishing medium while leaving behind only the pachinko balls. Also, the thick part 4 of the rotating body
B is formed in a mesh shape and constitutes a medium return section so that the polishing medium sieved from the chute 17 is returned into the fixed container 1. A brush 22 is provided above the starting end of the chute 17. A helical body 19 is provided on the outer periphery of the narrow portion 4A of the rotating body 4, and the rotation of the rotating body 4 transfers the pachinko balls and polishing medium in the fixed container 1 toward the introduction device. This helical body 19 constitutes a second transfer tool. A box body 20 is provided below the fixed container 1, and the polishing medium in the fixed container 1 can be taken out by opening the outlet 21 as appropriate.

When using the polishing machine of the present invention, first put an appropriate amount of polishing media into the inlet 3, and then press the motor 11.
The rotating body 4 is rotated, and pachinko balls to be polished are randomly thrown in from the ball inlet 2 at any time. The pachinko balls are collected near the introduction device at the bottom of the fixed container 1 by the helical body 19, and the pachinko balls thrown in during this time are polished together with the polishing medium. The polished pachinko balls are randomly placed into the rotating body 4 by the introduction device.
The sample is scooped up at one end, transferred to the other end by the helical body 16, and placed on the chute 17.
Only the polishing medium is screened out on the chute 17 and returned to the fixed container 1 for reuse. The brush 22 prevents the pachinko balls from being ejected to the outside with the polishing medium still attached. The dirty polishing medium is taken out into the lower box 20 at the appropriate time, and fresh polishing medium is replenished from the inlet 3.

According to the present invention, a compact and inexpensive pachinko ball polishing machine can be obtained by using a simple structure in which a rotating body is rotated within a fixed container.Moreover, since the taking in and taking out of balls is continuous, the circulation within the island is improved. A pachinko ball polishing machine suitable for placement on the road can be obtained. Further, according to the present invention, a first transfer device is provided inside the rotating body to transfer the pachinko balls in the rotating body to the exit chute side by rotation, and a first transfer tool is provided outside the rotating body. A second transfer device is provided that rotates the pachinko balls in the fixed container to introduce the polishing medium into the rotating body, and further, the diameter of the other end of the rotating body is made larger than that of the central portion, A chute is provided to take out the pachinko balls to the outside while sieving off the abrasive media, and a return part for the abrasive media is provided at the other end of the rotating body, so the pachinko balls placed in the fixed container are not exposed to the abrasive media. The pachinko balls can be reliably guided into the rotating body while being polished, the polished pachinko balls can be smoothly taken out, and the polishing medium can be separated and reused.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken from FIG. 1. 1... Fixed container, 2... Ball inlet, 4... Rotating body, 11... Motor, 16... Transfer tool, 17...
Chute, 13... Protrusion of introducing device, 4B... Medium return section.

Claims (1)

[Scope of utility model registration request] A rotating body that is rotationally driven by a motor is supported in a fixed container that has an entrance at the top for the pachinko balls to enter, and one end of the rotating body scoops up the pachinko balls at the bottom of the fixed container and introduces them into the rotating body. A first transfer device is provided inside the rotating body to transfer pachinko balls inside the rotating body to the other end of the rotating body by rotation of the rotating body, and a first transfer device is provided outside the rotating body. A second transfer device is provided which transfers the pachinko balls in the fixed container to the introduction device side by the rotation of the rotating body, and the other end of the rotating body has a larger diameter than the other part, and the inner side thereof is provided with a chute that guides the pachinko balls in the rotating body to the outside through the end face opening of the fixed container while sieving off the polishing medium, and a medium return portion through which the polishing medium passes through the other end of the rotary body. A pachinko ball polishing machine.