JPH0524391Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is capable of lifting pachinko balls by pushing up a mixture of pachinko balls and abrasive material introduced into a lifting pipe by the rotation of a spiral lifting body inside the pipe. This invention relates to an improvement in a pachinko ball lifting and polishing device that polishes pachinko balls while lifting them.

[Background technology]

As disclosed in Japanese Patent Publication No. 58-15151, a spiral body is extended in the axial direction within a lift pipe arranged in the vertical direction, and this spiral body is attached to the rotating shaft of a drive source installed at the top of the lift pipe. A device is known in which the upper ends of a spiral body are connected and a mixture of pachinko balls and abrasive material introduced into a pipe is pushed up by the rotation of the spiral body, thereby polishing the pachinko balls while being transported.

This type of device connects a spiral body with spiral wings installed at the bottom of the pipe and a rotating shaft of a drive source installed at the top of the pipe with a long coiled spiral. Since the configuration is such that the transmission is performed using the coiled spiral, the rotational transmission force and the pachinko ball lifting force are simultaneously applied to the coiled spiral. Therefore, the vertical load on the coiled helical body becomes excessive, and the upper part in particular stretches and deforms into a straight line, resulting in a drawback that the lifting capacity is significantly reduced. Further, due to the large load, the diameter of the coiled helical body had to be made small and the wire diameter had to be made thick, and as a result, it was not possible to obtain efficient stirring polishing and lifting force.

[Purpose of invention]

The present invention was made to solve the above problems, and its main purpose is to stabilize and improve the ability to lift pachinko balls and to improve the efficiency of stirring and cleaning.

Another object of the present invention is to provide a pachinko ball lifting and polishing device in which the movable member that generates the lifting force is made of a strong material and which can reliably prevent balls from getting caught.

[Summary of the idea]

This invention is based on the bottom of a lifting pipe arranged vertically to transport a mixture of pachinko balls and abrasive material.
A lifting force generating body with protruding spiral blades (hereinafter referred to as a spiral lifting body) is rotatably arranged, and a rod-shaped rotation transmission is performed between the rotational drive source placed on the upper part of the lifting pipe and the spiral lifting body. It is characterized by being directly connected via a shaft and fitted between the lifting pipe and the transmission shaft with a stirring spiral whose upper end engages with the rotating shaft of the drive source and whose lower end is connected to the spiral lifting body. Preferably, the spiral lifting body is made of a solid material such as metal, and the inner circumferential surface of the lifting pipe around it is made of a flexible material such as an elastic synthetic resin. This is to prevent them from getting caught.

[Example of idea]

The present invention is generally a device that polishes and lifts dirty pachinko balls (hereinafter referred to as balls), but the figure shows an example of use in a pachinko hall island equipped with an automatic pachinko ball circulation supply system. and explain.

As shown in Fig. 1, a collection gutter 3 is installed below an island 2 on which a plurality of pachinko machines 1 are arranged side by side to collect pachinko balls (hereinafter referred to as balls) from each pachinko machine, and above the island 2. A supply gutter 4 is installed to supply balls to each pachinko machine. A cylindrical lifting pipe 5 extending from the collecting gutter 3 to the replenishing gutter 4 is installed in the vertical direction of the island 2 in order to lift the balls in the collecting gutter 3 to the replenishing gutter 4. An introduction section 7 for feeding a mixture of pachinko balls 6a and abrasive material 6b is provided at the bottom, and a discharge section 8 for discharging this mixture is provided at the top.

The introduction part 7 has an opening 7a formed at the lower part of the lifting pipe 5 and a ball storage part 7b that communicates with the pipe 5 through this opening 7a.
is connected to.

The lead-out part 8 of the lift pipe 5 is provided above the supply gutter 4 above the island, and is passed to the supply tank 10 or the supply gutter 4 through a screen-shaped sorting device 9 that screens out the balls 6a and the abrasive material 6b. is in contact with.

A rotary drive source 11 such as an electric motor is installed concentrically above the lift pipe 5 with its drive shaft 11a facing inside the pipe 5. Shaft 11a of drive source 11
The introduction part 7 is arranged along the axial direction inside the lifting pipe 5.
A rotation transmission shaft 12 of a core rod body extending to the vicinity of the opening 7a is connected to the rotation transmission shaft 12, and a spiral blade 13 is attached to the outer periphery of a shaft body 13a at the tip of this rotation transmission shaft 12.
A helical lifting body 13, which is made by integrally winding the material B, is integrally connected. The helical lifting body 13 is rotatably arranged so as to face the introduction part 7 of the pipe 5, and the spiral blades 13b of the lifting body 13 are rotated by the rotation of the transmission shaft 12.
is configured to pivot upward. Further, the gap d between the outer periphery of the spiral blade 13b and the inner circumferential wall of the lifting pipe 5 is configured to be narrower than the diameter of the pachinko ball 6a, thereby preventing the balls in the pipe 5 from falling through this gap d. It is assembled.

Preferably, the spiral lifting body 13 is made of a robust material such as metal;
The inner circumferential wall of the surrounding pipe 5 is made of a flexible material 14 such as semi-hard synthetic resin or rubber, so that when the ball is caught between the spiral blade 13b and the circumferential wall of the pipe 5, the flexible material 14 The surrounding wall of the pipe is deformed to absorb or remove the trapped ball.

A stirring spiral body 15 made of a wire is fitted between the rotation transmission shaft 12 and the pipe 5 above the spiral lift body 13. The spiral body 15 has a lower end connected to the spiral lifting body 1.
3, and its upper end is engaged with a base portion 11b that is fitted onto the rotating shaft 11a of the drive source 11, and is assembled so as to rotate upward together with the lifting body 13.

In the present invention, since the lifting body 13 is given rotational force by the rotation transmission shaft 12, the stirring spiral body 15 is not subjected to a large load. Therefore, even if the spiral body 15 is made of a relatively thin wire, a sufficient stirring function can be obtained, and the diameter of the spiral body 15 can be made equal to or larger than the diameter of the lifting body 13.

A tray 16 for collecting the abrasive material 6b sieved from the sorting device is provided below the filtration sorting device 9 leading to the outlet 8 of the lifting pipe 5, and the tray 16 is connected to the pipe 17 It communicates with the ball storage section 7b of the introduction section 7 via.

Next, to explain the operation of the device of the present invention, the pachinko balls 6a flowing down the collection gutter 3 meet with the separately supplied abrasive material 6b in the ball storage section 7b of the introduction section 7, and form a mixture that flows into the introduction section. 7 into the lifting pipe 5, and is gradually pushed upward by the spiral lifting body 13 rotating via the rotation transmission shaft 12. As a result, the mixture of the balls 6a and the abrasive material 6b fills the pipe 5 and is agitated by the pumping body 13 and the spiral body 15 in the process of being pushed up, and the balls are cleaned by friction with the abrasive material. The mixture of spheres and abrasive material thus lifted while being polished is discharged from the outlet 8 of the lift pipe 5, and is sieved into spheres 6a and abrasive material 6b as it passes through a screen-shaped sorting device 9. As a result, only the balls 6a flow down into the supply gutter 4, and the abrasive material 6b flows down into the pipe 17.
The particles fall through the interior and are collected into the storage section 7b of the introduction section 7, where they are mixed with the subsequent unpolished balls.

As described above, the present invention has a structure in which the rotational force of the drive source 11 is directly transmitted to the lifting body 13 by the rod-shaped rotation transmission shaft 12, so there is no loss in transmission and the lifting body has a strong force. Can provide rotational force,
Lifting power is significantly improved. In addition, since there is no need to rotate the lifting body by the spiral body 15 itself, the load on the spiral body 15 is small. Therefore, the material of the spiral body can be thinner and more flexible than in the past, and the diameter of the spiral body can be increased. Moreover, there is no risk of it stretching in a straight line. This is extremely effective not only in improving the polishing effect by stirring but also in reducing the resistance of the ball to be caught between the spiral body and the pipe.

Furthermore, in the lifting pipe, the mixture is pumped while swirling, so the further the balls are located on the outside, the faster the pumping speed is.However, in this invention, since the rotating shaft occupies the center of the pipe, the mixture moves outward. Moreover, since the diameter of the helical body can be increased as mentioned above, it has the effect of improving the stirring ability and the pumping speed.

Incidentally, if the inner circumferential wall of the pipe around the lifting body 13 is made of a flexible material 14, it is possible to absorb the biting of the ball, but in particular in the present invention, by making the inner circumferential wall of the pipe a flexible material. The spiral lifting body, which is easily deformed and worn due to shocks and vibrations and has a complicated structure, can be constructed of a strong material such as metal, thereby increasing durability and making maintenance extremely easy and inexpensive.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of the device of the present invention, and FIG. 2 is an enlarged longitudinal sectional view of the main part. 5... Lifting pipe, 6a... Pachinko ball, 6b
... Abrasive material, 9 ... Sorting device, 11 ... Drive source,
12... Rotation transmission shaft, 13... Spiral lifting body, 13
b...Spiral wing, 14...Flexible material, 15...Spiral body, 17...Pipe.

Claims (1)

[Claims for Utility Model Registration] (1) An introduction part 7 for supplying a mixture of pachinko balls 6a and abrasive material 6b is formed in the lower part, and a discharge part 8 for the mixture is provided in the upper part to extend it to a predetermined lifting height. The lift pipe 5 that is present, the drive source 11 installed on the top of the lift pipe 5, and the upper end connected to the rotating shaft 11a of the drive source 11, and extends inside the lift pipe 5 along its axial direction. a rotation transmission shaft 12 of the core rod body, a helical lifting body 13 disposed near the introduction part 7 in the lifting pipe 5 and whose upper end is integrally fixed to the rotation transmitting shaft 12, and the lifting pipe 5. It is inserted between the rotation transmission shafts 12, and the lower end is connected to the spiral lifting body 13.
a stirring spiral body 15 whose upper end is engaged with the base of the rotating shaft 11a of the drive source 11;
A pachinko ball lifting and polishing device comprising: (2) A utility model registration request characterized in that the spiral lifting body 13 is made of a solid metal material, and the inner peripheral surface of the pipe 5 around the spiral lifting body 13 is made of a flexible material 14. A pachinko ball lifting and polishing device according to scope 1.