JPH056473B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cleaning device for polishing pellets in a lifting polishing device for pachinko balls.

[Prior Art] Pachinko balls and polishing pellets are introduced into a lifting pipe, and a spiral coil inserted into the lifting pipe is rotated to polish the pachinko balls while transporting them. For example, a lifting polishing device for pachinko balls in which the polishing pellets are separated from the polishing pellets and the separated polishing pellets are returned to the lower part of the transportation pipe for circulation use is disclosed in the Japanese Patent Publication No. 58-15151.
It is known from the publication No. Such a pachinko ball lifting polishing device has the disadvantage that the dirty polishing pellets must be periodically taken out and washed in a washing machine or the like, which is a time-consuming process.

Therefore, the present applicant proposed in Japanese Patent Application No. 60-52905 that a cleaning device be installed in the middle of the circulation path of the polishing pellets, and the surfaces of the polishing pellets would be scraped off by the cleaning device and circulated while being purified. did.

[Problems to be Solved by the Invention] However, most of the dirt on the polishing pellets is oil-based, such as hand grime on pachinko balls, and therefore, conventional surface-cutting cleaning devices are not able to clean the pellets sufficiently. There was a problem that it could not be processed.

The present invention provides a lift polishing device that circulates and uses polishing pellets, and is capable of completely removing oily dirt adhering to the surface of the polishing pellets, thereby significantly increasing the cleaning ability of the pachinko balls. The object of the present invention is to provide a cleaning device for abrasive pellets in a feeding device.

[Means for Solving the Problems] In order to achieve the above object, the present invention introduces pachinko balls and polishing pellets from the lower part of a lifting pipe, and lifts the pachinko balls while polishing them.
Pachinko ball lifting and polishing equipment in which a sorting device is installed in the upper part of the lifting pipe to separate pachinko balls and polishing pellets, and the separated polishing pellets are returned to the lower part of the lifting pipe through a circulation pipe for circulation use. In the above-mentioned circulation pipe, means for injecting a volatile degreasing liquid for cleaning the polishing pellets is provided.

[Examples] The present invention will be described below with reference to illustrated embodiments. Figure 1 is a cross-sectional front view of a pachinko ball lifting and polishing device. 1 is a base, 2 is a lifting pipe installed perpendicularly to the top surface of the base 1, and inside is a pipe that extends over its entire length. A spiral coil 3 is inserted therein.
The spiral coil 3 is formed by twisting a wire material in a spiral shape,
The upper end portion is connected to an output shaft 5 of a motor 4 installed at the top of the lift pipe 2 . Reference numeral 6 denotes a cross-feeding pipe fixedly placed inside the box 7 installed on the base 1 and having one end connected to the lower end of the lifting pipe 2,
This horizontal feed pipe 6 has a supply port 30 for pachinko balls.
A polishing pellet supply section 24 is formed, and a cleaning section 8 for polishing pellets P (synthetic resin granules) is integrally provided at the other end.

The cleaning section 8 has a motor 9 attached to the outside of the box body 7.
and a rotating member 10 fixed to the shaft of the motor 9,
It is roughly composed of a cylindrical body 11 housing the rotating member 10. The rotating member 10 has a screw portion 10a at the front end near the connection with the motor shaft, a scraping blade 10b at an intermediate position, and a spiral coil 10c extending into the cross-feeding pipe 6 at the rear end. be done. The cylindrical body 11 is formed as a hollow net-like cylinder with a large number of oblique cutting grooves 12 formed on its outer peripheral surface.

The inside of the box body 7 is divided by a partition wall 13 at a point where the cross-feed pipe 6 and the cylindrical body 11 communicate with each other, and cavities 14 and 15 are formed at the upper and lower parts of the cylindrical body 11. The dust storage drawer 16 is removably inserted therein. Also, box body 7
A dust collection port 17 is formed on the top surface of the dust collector 17 in communication with the upper cavity 15, and a suction pipe 19 of a dust collector 18 is connected to the dust collection port 17.

A sorting device 21 is installed at the upper end outlet 20 of the lifting pipe 2 . The sorting device 21 separates the pachinko balls and the polished pellets P that are being conveyed by using a cage 22 with a gap smaller than the diameter of the pachinko balls;
A tray 23 is provided to collect the polishing pellets P falling from the basket 22. And saucer 2
A circulation pipe 25 that communicates with the abrasive pellet supply section 24 of the cross-feeding pipe 6 is connected to the bottom of 3, and a branch pipe 27 that communicates with the abrasive pellet intake port 26 of the cleaning section 8 is connected in the middle of the circulation pipe 25.
is connected. 28 is the polishing pellet supply section 2
4 is an opening/closing shutter provided, and 29 is an opening/closing shutter provided at the abrasive pellet intake port 26.

In the pachinko ball lifting and polishing apparatus constructed as described above, the opening/closing shutter 28 of the polishing pellet supply section 24 is normally open, and the opening/closing shutter 29 of the polishing pellet intake port 26 is normally closed. Further, the pachinko balls discharged from each pachinko machine are introduced into the cross-feeding pipe 6 from the supply port 30 via the bucket member, and the polishing pellets P are supplied and filled into the cross-feeding pipe 6 from the supply section 24. When the rotary member 10 is rotated by the drive of the motor 9, the pachinko balls and the polishing pellets P are mixed by the spiral coil 10c and transferred into the transport pipe 2. Lifting pipe 2
The pachinko balls and polishing pellets P transferred into the helical coil 3 are rotated by the drive of another motor 4.
While being further stirred and mixed, the amount gradually increases and continues to rise toward the upper end outlet 20. When the pachinko balls and polishing pellets P are stirred and mixed by the spiral coil 3, dirt from the pachinko balls adheres to the polishing pellets P due to mutual contact friction, or is removed and polished. The pachinko balls and polished pellets P that have reached the upper part of the lifting pipe 2 are sent out from the upper end outlet 20 onto the screen 22 of the sorting device 21 and separated, and the polished pellets P fall from the gap between the screen 22 into the receiving tray 23 and are circulated. The polishing pellets are circulated and supplied from the pipe 25 into the cross-feeding pipe 6 from the supply section 24 .

When the polishing pellets P become dirty and the purification effect becomes weak, the opening/closing shutter 28 of the polishing pellet supply section 24 is closed and the opening/closing shutter 29 of the polishing pellet intake port 26 is opened. The polishing pellets P are introduced into the cylindrical body 11 through the inlet 26.
The polishing pellets P guided into the cylindrical body 11 are transferred to the cross-feeding pipe 6 by the screw portion 10a of the rotating member 10.
The dirt is removed by the scraping blade 10b and the blade groove 12, and the dirt is returned from the cross-feed pipe 6 to the lift pipe 2.

Incidentally, the deposits removed from the polishing pellets P fall from the blade groove 12 into the dust storage drawer 16, and fine shavings are collected in the dust collector 18. and,
When the polishing pellets P are purified, the shutter 29 of the polishing pellet intake port 26 is closed, the shutter 28 of the polishing pellet supply section 24 is opened, and the pellets are returned to the cross-feeding pipe 6 through the circulation pipe 25.

Therefore, in the present invention, in the pachinko ball lifting and polishing apparatus as described above, an infusion device 32 is arranged as an example of an injection means for injecting a volatile degreasing cleaning liquid 31 for cleaning the polishing pellets P into the circulation pipe 25. . The infusion device 32 includes an injection needle 32a, an introduction pipe 32b, a drip tube 32c, and a liquid tank 32d containing the volatile degreasing cleaning liquid 31. Then, the liquid tank 32d is transferred to the sorting device 2.
1, the drip tube 32c is connected to the lower end of the liquid tank 32d, and the drip tube 32c is connected to the lower end of the liquid tank 32d.
An injection needle 32a is connected to the injection needle 2c via an introduction pipe 32b, and the injection needle 32a is inserted into the circulation pipe 25 to drain the volatile degreasing cleaning liquid 31 in the liquid tank 32d.
is injected through an intravenous drip.

The volatile degreasing cleaning liquid 31 is mainly composed of a solvent with high degreasing properties, and contains an appropriate amount of an antistatic agent and an abrasive. Examples of the composition include: (1) Toluene 53.7 VOL% Tetrachlor Ethylene 42.3VOL% Silicone oil 4VOL% Surfactant (nonionic) (2) Trichlorethylene 95VOL% Silicone oil 3VOL% Surfactant (nonionic) 2VOL%.

Therefore, the circulation pipe 2 is
The volatile degreasing cleaning liquid 31 dripped into the cross-feeding pipe 6 is used to completely extract and purify oily dirt that adheres to the polishing pellets P accumulated in the circulation pipe 25 and cannot be removed in the cleaning section 8. Polishing pellets as clean as new polishing pellets are always supplied to the inside.

[Effects of the Invention] As described above in the embodiments, according to the present invention, a volatile degreasing cleaning liquid is injected into the circulation pipe of the abrasive pellets to completely extract and remove hard-to-remove oil stains adhering to the surface of the abrasive pellets. As a result, the cleaning effect of polishing pellets is significantly improved compared to conventional devices.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view showing the entire pachinko ball lifting and polishing device in section, and FIG. 2 is a front view showing the cleaning section in section. 2... Lifting pipe, 21... Sorting device, 25...
...Circulation pipe, 31...Volatile degreasing cleaning liquid, P...
...Abrasive pellets.

Claims (1)

[Scope of Claims] 1. Pachinko balls and polishing pellets are introduced from the lower part of the transport pipe, and the pachinko balls are transported while being polished, and a sorting device is installed in the upper part of the transport pipe to separate the pachinko balls and the polished pellets. In a lifting polishing device for pachinko balls that separates pellets and circulates the separated polishing pellets by circulating them to a lower part of a transportation pipe through a circulation pipe, a volatile degreasing cleaning liquid for cleaning the polishing pellets is placed in the circulation pipe. 1. A polishing pellet cleaning device in a pachinko ball lifting polishing device, characterized in that the polishing pellet cleaning device is provided with an injection means.