JPH0243512B2 - - Google Patents

Description

Detailed Description of the Invention The present invention is a pachinko machine in which an abrasive is mixed with pachinko balls, this mixture is introduced into a lifting pipe, and the pachinko balls are polished while being lifted by rotation of a spiral body provided in the pipe. This invention relates to an improvement in a ball pumping abrasive device, and in particular, it is designed to discharge powder contained in a mixture to the outside of an abrasive circulation system.

As a device for polishing pachinko balls while transporting them together with abrasive material, for example, as shown in Japanese Patent Publication No. 55-4546, a spiral body is inserted into a transport pipe,
There is a device that lifts the pachinko balls by rotating this spiral and also polishes the balls with an abrasive material mixed in the pachinko balls. However, the conventional method uses a screen to separate the pachinko balls and the abrasive material after the pachinko balls are transported, but there is little dimensional margin near the upper discharge port, and it is necessary to have a sufficient head. Since the abrasive material is also difficult to remove, it has been difficult to sufficiently separate pachinko balls from the abrasive material.

Even so, if the abrasive is only in the form of granules, it is easy to sort it with a screen, etc., but the mixture of pachinko balls and abrasive that is introduced into the pipe from the bottom is forcibly stirred by a rotating spiral body. Since the materials are transported while moving, there is a lot of wear due to mutual friction, and dirt, dust, etc. become powdered and mixed in the mixture, and these powders pass through screens etc. If the balls adhere to the surface of the pachinko balls, they will flow down and adhere to the supply gutter installed above the rows of pachinko machines, as well as the tanks and gutters of each pachinko machine. Contamination was caused by powder.

In addition, since the device sorts the abrasive material above the transport pipe and then guides it downward again and mixes it with pachinko balls, the abrasive material is circulated and used. Since the particles fall and mix with the pachinko balls, the powder particles gradually increase in the mixture due to the circulation flow, and there is a defect that the sorting becomes even more insufficient.

Therefore, the present invention provides a lifting polishing device that mixes pachinko balls and abrasive material, introduces this mixture into a pipe, and polishes the pachinko balls while lifting them by rotating a spiral body provided in the pipe. In the process of pumping the mixture, by sorting and separating powder such as wear and dust that are difficult to sort, the powder can be sorted and separated before the mixture is discharged from the upper discharge part, and the abrasive material can be separated. It is designed to be taken out of the circulatory system.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the pachinko ball lifting and polishing device 1 is arranged vertically at the end of a row of pachinko machines in which a plurality of pachinko machines 2 are arranged side by side.
Collection gutter 3 that collects pachinko balls discharged from...
A ball storage section 4 is provided at the downstream end of the ball storage section 4, and the lower ends of the lifting pipe 5 and the abrasive circulation gutter 6 are made to face into the ball storage section 4. A spiral body 7 is inserted into the inside of the lift pipe 5, and a drive source 8 for rotating the spiral body 7 is provided at the upper part. The spiral body 7 is inserted into the lifting pipe 5,
It mainly consists of an elastic spiral body 9 which is responsible for stirring the mixture of pachinko balls and abrasive material, and a solid screw body 10 which is responsible for introducing the mixture into the lifting pipe 5 and pushing it up into the pipe 5. The elastic spiral body 9 is shaped like a coil spring and has a suitably smaller diameter than the inner diameter of the lift pipe 5.

The upper end of the elastic helical body 9 is connected to a drive source 8, for example, an output shaft 8' of a geared motor, and the lower end is a socket 1 that opens at the lower end of the lifting pipe 5.
It is connected to the upper end of the solid screw body 10 via a connecting member 12 at a position slightly above 1.

The lower end of the solid screw body 10 projects downward from the socket 11 described above.

The ball storage section 4 temporarily stores dirty pachinko balls A from each pachinko machine 2, and also contains abrasive material (for example, synthetic resin, rubber, etc.) discharged from the abrasive material circulation gutter 6 into the pachinko ball A. A deep bottom part 13 that stores a mixture of pachinko balls A and abrasive material B at a certain depth, and a mixture of pachinko balls A and abrasive material B in the deep bottom part 13. The introduction part 14 has an inclined bottom surface and is introduced while moving.

In the embodiment of the drawings, the lifting pipe 5 is a ball storage section 4.
It is a hollow pipe that stands vertically from the inside, and the socket part 11 faces the deep bottom part 13 of the ball storage part 4.

A discharge part 15 for discharging a mixture of pachinko balls and abrasive material is provided in the upper part of this lifting pipe 5,
A stirring and pumping section is configured between the socket section 11 and the discharge section 15. A sorting device 16 is connected to this discharge part 15, and the sorting device 16 faces the inlet 6' of the abrasive circulation gutter 6, and the sloping upper end of a ball supply gutter 17 that supplies balls to each pachinko machine 2. Connect.

Above the above-mentioned lifting pipe 5, a discharge section 15 is provided.
An abrasive material separation hole portion 18 is provided below the abrasive material. This abrasive material separation through-hole portion 18 is constructed by boring through holes, which are smaller than the diameter of a pachinko ball but larger than the granular abrasive material, in an appropriate number of steps on the circumferential surface of the lifting pipe 5. It is. Therefore, when the mixture of pachinko balls and granular abrasive material rises inside the lift pipe 5, some of the abrasive material passes through the separation hole portion 18 and is led out to the outside of the lift pipe.
Pachinko balls are not led out. An abrasive collection cover 19 is provided on the outer periphery of the separation hole portion 18, and since this collection cover 19 and the abrasive material circulation gutter 6 are connected by a connecting pipe 20, overflow from the separation hole portion 18 is provided. The granular abrasive material discharged and collected in the collection cover 19 is led to the abrasive circulation gutter 6 through the connecting pipe 20.

A powder separation hole section 21 is provided below the abrasive separation hole section 18 described above. This separation hole portion 21 is made of a through hole that allows powder objects such as crushed powder abrasive material and dust to pass through, but does not allow granular abrasive material to pass through, and is formed in close contact with the entire peripheral wall of the lift pipe. It is preferable that the pipe is bored in the shape of a pipe, and the length is preferably about one-third of the total length of the lift pipe. A powder collection cover 22 is provided around the outer periphery of the powder separation hole portion 21, and a discharge pipe 23 connected to the collection cover 22 is guided to the outside of the circulation system of the abrasive body. A container is provided at the powder discharge port of the collection cover 22, and the powder separation hole 21
The powder overflowing from the granular abrasive may be discharged from the circulation system of the granular abrasive by placing it in a container and discarding it appropriately.

Therefore, when the drive source 8 operates and the elastic spiral body 9 rotates, the solid screw body 10 connected to the lower end also rotates, so that the pachinko balls A and the abrasive material B stored in the ball storage part 4 are The pushing-up surface 10' of the screw body 10 rotates in the direction of biting into the mixture, and the mixture is lifted by the pushing-up surface 10' and introduced into the lifting pipe 5.

As the solid screw body 10 rotates, the mixture introduced into the lifting pipe 5 is lifted one after another by the pushing-up surface 10', introduced into the pipe, and pushed up from below. Go up inside pipe 5.

When the mixture pushed up by the solid screw body 10' reaches the elastic spiral body 9, the mixture consisting of the pachinko balls A and the abrasive material B is well stirred by the elastic spiral body 9 which spirally rotates within the lift pipe. By increasing the frequency of contact between pachinko ball A and abrasive material B, pachinko ball A is reduced by abrasive material B.
This effectively cleans and polishes.

Further, the mixture of pachinko balls A and abrasive B is successively conveyed to a lifting pipe 5 by a solid screw body 10.
As the mixture is fed into the pipe, the mixture in the lifting pipe 5 is gradually pushed up inside the pipe at a pumping speed corresponding to the amount of mixture supplied by the solid screw body 10. The local mixture is influenced by the helical movement of the rotating elastic helix 9, so that a local swirl of the mixture occurs.

That is, the mixture in contact with the elastic helix 9 receives sideways and upward forces from the helical movement of the elastic helix 9, and is stirred sideways and at the same time rises above the pumping speed. When released from the influence of the movement, the mixture falls under the force of gravity, and then the other mixture in contact with the elastic spiral 9 is influenced by the helical movement and is stirred laterally, at the same time increasing the pumping speed. rise above. In this way, the helical movement of the elastic spiral body 9 constantly influences the mixture, so that a small swirling flow of the mixture is generated around the elastic spiral body 9.

In this way, the mixture in the lift pipe 5 continues to rise while creating a small swirl around the elastic spiral body 9, and the mixture reaches the powder separation hole portion 21 provided in the upper peripheral wall of the lift pipe 5. Then, under the influence of the helical movement of the elastic spiral body 9, the mixture is forcibly brought into sliding contact with the powder separation hole portion 21. Therefore, when the surface of the pachinko ball A and the surface of the abrasive material B are slid on the inner surface of the powder separation hole portion 21, the powder particles adhering to the surfaces of the pachinko ball A and the abrasive material B are removed. is rubbed off, and the powder that has been rubbed off passes through the hole in the powder separation hole portion 21 and is separated and discharged from the discharge pipe to the outside of the lift pipe 5. In this way, if the powder is selectively separated by bringing the mixture into sliding contact with the powder separation hole portion 21, the static electricity generated by the friction between the pachinko ball A and the abrasive material B will cause the pachinko ball to Powder firmly adhered to the surfaces of sphere A and abrasive material B can also be effectively separated.

Moreover, it is not only the mixture in contact with the inner circumferential wall of the lifting pipe 5 that is brought into sliding contact with the powder separation hole 21, but also the mixture located inside the elastic spiral body 9. Since the mixture in the lift pipe 5 is appropriately transferred to the inner circumferential wall side of the lift pipe 5 by the spiral movement, the mixture in the lift pipe 5 is almost evenly brought into sliding contact with the powder separation hole portion 21, and the powder is separated. This makes it possible to perform good separation of powders without causing unevenness.

The above-mentioned sliding separation action of the powder is repeated until the powder passes the height of the powder separation hole 21 provided on the pipe peripheral wall, so that by the time the powder has passed through the hole 21, there is no liquid in the mixture. Most of the powder contained therein will be separated and discharged outside the pipe.

When the mixture further rose in the lifting pipe and reached the abrasive separation hole part 18 provided above, it was forcibly stirred and created small swirls in the horizontal and vertical directions, which were formed on the peripheral wall. Due to the holes through which the granular abrasive can pass, the abrasive passes through the holes and flows out of the pipe, but since the holes are arranged in an appropriate number of rows and stages, all of the abrasive can be absorbed. It does not leak out, but only a part of it flows out.

In this way, the mixture that rises while being stirred by the rotation of the elastic spiral body 9 performs a cleaning and abrasive action while discharging the powder and a suitable amount of granular abrasive material out of the pipe during the lifting process, and rises until it reaches the upper discharge part 15. By the time it rises, the pachinko ball will be sufficiently cleaned. When the upper discharge part 15 is reached, the upper discharge part 1
5 and flows into the sorting device 16.

The sorting device 16 is for sorting the pachinko balls A and the abrasive material B, and is configured by, for example, a cage 24 whose gap is larger than the outer diameter of the abrasive material B and smaller than the diameter of the pachinko balls, tilted slightly downward. . When the mixture of pachinko balls A and abrasive material B is placed on the screen holder 24, the abrasives smaller than the pachinko balls fall from the gap between the screen holders 24 into the tray 25, and only the pachinko balls A are sorted out and the screen holder 24 is tilted. It flows down to the ball supply gutter 17 connected to the lower end. The abrasive material B that has fallen into the receiving basin 25 is again supplied to the ball storage section 4 by the abrasive material circulation gutter 6. On the other hand, the pachinko balls A flowing down into the ball supply gutter 17 are delivered to each pachinko machine 2 as prize balls by a ball supply device 26 provided for each pachinko machine 2.
will be replenished.

The lifting pipe 5 may be provided with a flange portion 5' in the middle so that it can be separated for maintenance, inspection, and repair, and each separation hole portion may also be provided with a flange portion 5' for attachment. You can also do this.

As explained above, the present invention introduces a mixture of pachinko balls and granular abrasive material into a lifting pipe, and cleans the pachinko balls while stirring and lifting the mixture by the stirring and lifting section. In addition to polishing, powder particles such as abrasion particles generated by mutual sliding during agitation and transportation, as well as dirt and dust adhering to pachinko balls, are removed using a powder separation hole provided on the peripheral wall of the transportation pipe. It is sorted and separated from the parts.

Therefore, the mixture is forcibly brought into sliding contact with the powder separation hole part by the stirring and lifting action of the stirring and lifting part, and is firmly attached to the surface of the pachinko ball or abrasive material by static electricity, etc. Adhering powder can also be effectively separated.

Moreover, the mixture that is not in contact with the circumferential wall of the lift pipe is also guided toward the circumferential wall of the lift pipe due to the stirring and lifting action of the stirring and lift section, so that the mixture inside the lift pipe is almost evenly distributed for powder materials. It can be brought into sliding contact with the separation hole portion, and the uneven separation of the powder in the mixture can be made as small as possible, allowing extremely good sorting and separation of the powder.

Furthermore, since a powder separation hole is formed in a part of the height of the circumferential wall of the above-mentioned lifting pipe below the mixture discharge part, pachinko balls with no powder adhering to the surface can be used as prize balls. Each pachinko machine can be replenished, and the surfaces of the various gutters and game boards of a large number of pachinko machines will not be soiled or clogged with powder, and there is no need for cleaning due to soiling.

In addition, since the pachinko balls are cleaned and polished while rising in the lifting pipe, and the powder is separated from the mixture, a separate sorting device that requires a power source is installed to separate the mixture from the pachinko balls and the abrasive material. There is no need to separate the powder and the powder. Therefore, it is an object of the present invention to provide a pachinko ball lifting and polishing device that has extremely high practical value, as the structure of the sorting mechanism can be significantly simplified, maintenance and inspection of the sorting mechanism can be made easier, and costs can be expected to be reduced. be able to.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and Fig. 1 is a schematic front view, Fig. 2 is an enlarged sectional view of the upper part, and Fig. 3 is a schematic front view.
The figure is an enlarged sectional view of the lower part, and FIG. 4 is a schematic perspective view with a part cut away. 1... Lifting polishing device, 2... Pachinko machine, 5...
... Lifting pipe, 7 ... Spiral body, 11 ... Socket part,
15... Discharge part, 21... Powder separation hole part, 22... Collection cover.

Claims (1)

[Claims] 1. Raise the mixture of pachinko balls and granular abrasive material in a lifting pipe while stirring and polishing it.
An abrasive circulation type pachinko machine in which the above-mentioned mixture is discharged from the discharge part formed at the top of the lift pipe, and the mixture is sorted into pachinko balls and abrasives, and the abrasives are returned to the lower part of the lift pipe for reuse. The ball lifting abrasive device has a powder separation hole section below the above-mentioned discharge section, which has a through hole through which pachinko balls and abrasive material cannot pass through, but through which the powder object can sufficiently pass. A collection cover is formed on a part of the height of the circumferential wall of the above-mentioned lifting pipe, and a collection cover is provided on the outside of this separation hole for powder to pass through the hole and receive the powder. A pachinko ball lifting and polishing device that is connected to a discharge pipe that leads the powder to the outside of the abrasive circulation system.