JPH01234159A - Dust suction switching device in polishing and pumping feeder - Google Patents

Abstract

PURPOSE:To increase a suction force largely by providing a dust suction switching device for performing opening and closing of a dust suction pipe interlocked with opening/closing action of a passage switching device so as to make it possible to eliminate dust produced in a polishing grain cleaning device by suction only when this cleaning device is operating. CONSTITUTION:A passage switching device A is provided for reducing polishing grains directly or leading them to a polishing grain cleaning device 23 through a polishing grain cleaning passage 21. A dust suction pipe 22 connected with this polishing grain cleaning device 23 is connected with a dust suction switching device B at the other end, and opening/closing action of this dust suction pipe 22 is performed by the dust suction switching device B interlocked with opening/ closing action of the passage switching device A. That is, the dust suction pipe 22 is released only when the polishing grain cleaning device 23 is operating, so dust produced in the cleaning device 23 is eliminated by suction, and the dust suction pipe 22 is closed when the polishing grain cleaning device 23 is stopped, where only dust produced in a directing device 26 is eliminated by suction.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention involves mixing abrasive grains into dirty pachinko balls, medals, and other game media, stirring and polishing them while transporting them, and removing the game media from the upper part, etc. In a polishing transport device that separates abrasive grains and polishes game objects, when the separated abrasive grains become gradually dirty on the way down and must be cleaned, the polishing This invention relates to a dust suction switching device that opens and closes a dust suction pipe that sucks dust generated in an abrasive grain cleaning device in conjunction with a flow path switching device that sends grains to an abrasive grain cleaning device through an abrasive grain cleaning path.

(Prior Art) Conventionally, regarding a polishing/lifting device for game media equipped with an abrasive grain cleaning device for purifying dirty abrasive grains, the applicant of the present application has previously disclosed Japanese Patent Application Laid-Open No. 60-90583. There are things that I have invented and proposed.

In this case, the dirty game medium and the abrasive grains are mixed and stirred, that is, the game medium is polished while being pumped and discharged to a sorting device that separates the game medium and the abrasive grains. It was completed. The game medium and abrasive grains are discharged into the sorting device, and the dust generated when they fall and the dust generated by the polishing action are collected by a suction hose connected to the sorting device at one end and the dust collector at the other end. So, it was always removed by suction.

Furthermore, in this invention, it is obvious that no matter how much a game medium is polished with dirty abrasive grains, the polishing effect of the game medium decreases, so the abrasive grains are regenerated, that is, purified, using a dry method. Equipped with an abrasive particle cleaning device.

When the abrasive particles become dirty, this abrasive particle cleaning device closes the circulation pipe using a switching valve, whereby the abrasive particles are guided into the abrasive particle cleaning device through the clean circulation pipe, and the dirty abrasive particles are introduced into the abrasive particle cleaning device. The surface of the abrasive was peeled off, and the dust generated at that time was constantly removed by suction with a suction hose connected at one end to the abrasive particle cleaning device and at the other end to the dust collector.

(Problem to be Solved by the Invention) By the way, in such a conventional device, polished game media and abrasive grains are constantly discharged and dropped into the sorting device, generating dust. Although suction removal is indispensable, the abrasive grain cleaning device requires dust suction only when dirty abrasive grains are introduced into the device and the dirty surface of the abrasive grains is being peeled off. However, even when the abrasive particle cleaning device is stopped, suction removal is always performed. In other words, dust collection in this state was meaningless and wasted. At the same time, one dust collector was used to collect dust from the sorting device and the abrasive particle cleaning device, so the dust suction power was always reduced by half, and the dust suction power was weak.

In order to solve the above-mentioned conventional drawbacks, the present invention provides a flow path switching device in the middle of the descending path through which abrasive grains descend, and the dust suction of the abrasive grain cleaning device is linked to the opening and closing operations of the flow path switching device. A dust suction switching device that opens and closes the pipe is provided to suction and remove dust generated in the abrasive particle cleaning device only when the abrasive particle cleaning device is in operation, and when the abrasive particle cleaning device is stopped. To provide a dust suction switching device in a polishing grain lifting device which closes a dust suction pipe and sucks and removes only the dust generated in a sorting device.

(Means for Solving the Problems) In order to solve one or more of the above drawbacks, the present invention provides a method of polishing the game medium by mixing and stirring both the game medium and the abrasive grains,
In the sorting device that separates the polished game medium and the abrasive particles, an abrasive particle cleaning path is provided by branching off in the middle of the descending path that reduces the separated abrasive particles, and the abrasive particle cleaning path is installed in this abrasive particle cleaning path. In the polishing lifting device in which the device is arranged, a flow path switching device is provided to either directly reduce the abrasive grains or guide them to the abrasive grain cleaning device through an abrasive grain cleaning path, and the opening/closing operation of this flow path switching device The present invention is characterized in that a dust suction switching device is provided which opens and closes a dust suction pipe whose one end is connected to the abrasive particle cleaning device and the other end is connected to the dust suction switching device.

(Function) When dirt on the surface of the abrasive grains becomes noticeable and the polishing effect of the game medium decreases, the abrasive grains are guided to the abrasive grain cleaning device.
Rotate the motor of the flow path switching device.

A rotary disk fixed to the motor shaft is rotated. Since the sliding bin provided on the rotary disk is fitted into and engaged with the sliding groove of the opening/closing plate, the opening/closing plate slides and the blocking plate provided on the descent path where the abrasive grains descend. Close the descent window of
Changes the circulation route of abrasive grains.

In synchronization with the sliding movement of the opening/closing plate, a horizontal movement of the shutter bin, which is protruding from the side of the opening/closing plate and engaged with an inclined shutter bin sliding window provided on the elevating plate of the dust suction switching device, is made. In conjunction with this, the elevating plate rises as if it were lifted up, the dust suction pipe is opened, and the abrasive particle cleaning device sucks and removes the dust that has been peeled off from the surface of the dirty abrasive particles. At the same time, dust generated when game media and abrasive grains that are discharged into the sorting device fall and due to the polishing action is constantly removed by suction.

After that, when the cleaning of the abrasive material is completed, press the operation switch again, slide the opening/closing plate in the opposite direction to the above, and align the passing window of the opening/closing plate with the descending window of the blocking plate, The abrasive grains separated by the sorting device are directly reduced to be circulated. When the opening/closing plate moves as described above, the shutter bin slides to push down the elevating plate. As a result, the elevating plate descends to close the dust suction pipe, and this closure stops dust suction from the abrasive particle cleaning device, and only the dust generated within the sorting device is suctioned and removed.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

First, the polishing lifting device will be explained in detail with reference to FIG.

In the figure, C is a polishing and lifting device that mixes and stirs dirty pachinko balls, medals, and other game media with synthetic resin abrasive grains, polishes them, and transports them. A lifting screw (not shown) is inserted into the lifting pipe 50, which is provided upright so as to be lifted upward while polishing. It is rotated by a lift motor 51 provided.

A sorting device 26 is provided at the upper part of the lifting pipe 50 to separate the game medium and the abrasive grains discharged from an upwardly opened discharge port (not shown) of the lifting pipe 50.

The descending path 2o is connected to the sorting device 26, and its lower end is connected to the lifting pipe 5o again in a circular manner. Therefore, the abrasive grains separated from the game medium are circulated and supplied to the lift pipe 5o through the descending path 20. In addition, when the discharged game medium and abrasive grains fall into the sorting device 26,
A dust suction pipe 24 for a sorting device is connected to the dust suction pipe 24 for suctioning dust generated by the polishing action. The other end is a dust suction device, which is a tank 3 that collects and stores dust.
1, and is constantly sucked and removed by a dust suction motor 3o.

Then, one end is in the middle of the descending path 20, and the other end is an abrasive grain cleaner! An abrasive particle cleaning path 21 connected to the abrasive particle cleaning path 23 is provided, and when the surface of the abrasive particles becomes dirty and the polishing effect of the game medium becomes weak, the abrasive particle cleaning path 21 is The dirty abrasive grains are sent to the abrasive grain cleaning device 23 through the abrasive grain cleaning device 23.

Reference numeral 22 denotes a dust suction pipe that sucks the dust removed from the surface of the abrasive grains contaminated by the abrasive grain cleaning device 23. One end is connected to the abrasive grain cleaning device W23, and the other end is connected to the dust suction pipe 24 for the sorting device. and are collected in a tank 31.

Next, the flow path switching device A and the dust suction switching device B of the present invention will be explained. Conventionally, the dust suction switching device B is the above-mentioned abrasive particle cleaning device 23.
The purpose is to prevent a situation in which suction is constantly being performed even though the dust is stopped and no dust is generated.

1 is the rear plate of the dust suction switching device B, as shown in Fig. 2,
The elevating plate sliding part 7 is formed by forming a protrusion around the upper part, and the upper part is provided with a horizontally long bottle sliding groove 3, and the lower part is used to remove the abrasive grains generated by the abrasive grain cleaning device 23. A dust suction pipe insertion hole 5 is provided through which a dust suction pipe 22 for sucking up the dust from which dirt has been removed is passed.

2 is a front plate, which has a horizontally long pin sliding groove 4 in the upper part, a dust suction pipe insertion hole 6 for passing the dust suction pipe 22 in the lower part, and the pin sliding groove 4 is provided in the pin sliding groove 3 of the rear plate 1. Then, the dust suction pipe insertion hole 6 and the dust suction pipe insertion hole 5 are combined so that they are at the same position.

Reference numeral 8 denotes an elevating plate, which is provided with a shutter bin sliding window 9 formed in an approximately right-angled triangular shape at its upper part, and is sandwiched between the rear plate 1 and the front plate 2 and slidably inserted into the elevating plate sliding portion 7. It will be worn.

As shown in FIG. A shutter bin 1 protrudes from the side of an opening/closing plate 12 of a flow path switching device A to be described later.
8 are engaged.

Next, a flow path switching device A is provided in the descending path 20 and below the abrasive particle cleaning path 21 branched in the middle, which automatically opens and closes to change the circulation path of the abrasive particles.

As shown in FIG. 1, in the flow path switching device A, a vertical motor 17 is fixed to a motor mounting frame 19 attached to a blocking plate 10, and a rotary disk 15 is provided at the lower end of a shaft 16 of the motor 17. A sliding bin 14 is provided near the outer periphery of the lower surface of the rotary disk 15.

There is a gap inside the blocking plate 10, and the opening/closing plate 1 is inserted into this gap.
2 is slidably inserted, and a sliding groove 13 is provided horizontally in the front part of the opening/closing plate 12, and the sliding pin 14 (provided on the rotary disk) is inserted into the sliding groove 13. When engaged and the motor 17 rotates, the opening/closing plate 12 slides back and forth, and the opening/closing plate 12 is provided with a passage window 12b.

A descending window 11 is provided on the blocking plate 10 in the descending path 20, and when an operation switch (not shown) is opened, a motor 17 rotates and a sliding pin 14 is opened as shown in FIG. As the opening/closing plate 12 moves rearward, the opening/closing plate 12 moves rearward.

When the opening/closing plate 12 moves backward, the control switch S1 is actuated to stop the motor 17, and the passing window 12b provided on the opening/closing plate 12 and the descent window 11 provided with the blocking plate 10 match (Fig. 5). The abrasive grains collected from the upper distribution device 26 directly descend to be circulated (normal operating condition).

At the same time, when the opening/closing plate 12 moves backward, the opening/closing plate 12
The pin mounting plate 12a provided on the side of the pin mounting plate 12a also moves, and the shutter pin 18 protruding from the pin mounting plate 12a moves in the rear R direction along the pin sliding grooves 4 and 7 of the rear plate 1 and front plate 2. Since the shutter pin sliding window 9 is provided in an inclined shape, the lifting plate 8 inserted into the lifting plate sliding portion 7 formed on the rear plate 1 is moved by the shutter bin 18. It descends as if being pushed down, and closes the sand pipe 22 as shown in FIG. 5, and by this closure, dust suction from the abrasive particle cleaning device 23 is stopped.

In this state, since the dust suction from the abrasive particle cleaning device 23 is stopped, the dust suction force from the sorting device 26 through the dust suction pipe 24 is doubled, and conventionally, there is no meaning at all.
This prevents the abrasive grain cleaning device 23 from sucking dust, which would have been useless, and avoids a decrease in dust suction power.

Next, in order to regenerate the abrasive grains whose surfaces have become dirty and the cleaning effect of the game media has weakened, the abrasive grains are cleaned, and in order to improve the cleaning effect of the game media, the dirty abrasive grains are removed using an abrasive grain cleaning device. 23, press the operation switch close and press (
(not shown) Rotate the motor 17 to move the opening/closing plate 12 forward
move in the direction. Then, control switch S2 is activated,
When the motor 17 stops, as shown in FIG. 4, the descending window 11 of the flow path switching device A is closed and the descending dirty abrasive grains are sent to the abrasive grain cleaning device 23.
Inside the abrasive particle cleaning device 23, the surface of the dirty abrasive particles is peeled off.

At the same time, when the opening/closing plate 12 moves forward in the F direction, the shutter bin 18 also moves horizontally forward along the pin sliding grooves 4 and 7, and the shutter bin sliding window formed in a substantially right triangle shape The pin 18 abuts the oblique side of 9,
This time, the elevating plate 8 that had closed the dust suction pipe 22 is raised by pushing up, and the dust suction pipe 22 is opened to suck dust from the abrasive particle cleaning device 23.

In this state, dust generated from both the abrasive particle cleaning device 23 and the sorting device 26 is being sucked.

All of the operations of the present invention described above are performed by remote control using operation switches.

(Effects of the Invention) As described above, the present invention provides a dust suction switching device for the dust suction pipe that has conventionally always performed suction removal even when the abrasive particle cleaning device is stopped, thereby reducing the amount of dust by half. It is obvious that the dust suction power is greatly increased, and the dust suction switching device is switched in conjunction with the flow path switching device, so it is extremely easy to operate.

In addition, since the dust generated by the abrasive particle cleaning device and the sorting device are handled by one dust suction motor instead of using separate motors, the effect is that the overall size of the device does not increase and the manufacturing cost does not increase. It's large.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the present invention, Fig. 2 is an exploded perspective view of the dust suction switching device, Fig. 3 is a perspective view of the polishing device, and Figs. 4 and 5 are diagrams showing the operating state of the present invention. be. 1... Rear plate 2... Front plate 3... Sliding groove 5
．． 6...Dust suction pipe insertion hole 7...Elevating plate sliding part 8
... Elevating plate 9 ... Shutter bin sliding window 11
...Descent window 12...Opening/closing plate 15...Rotary plate 1
7...Motor. Patent applicant Sayama Precision Industry Co., Ltd. Figure 1 Figure 2 Figure 4

Claims (1)

[Claims] A descending path that mixes and stirs both the game medium and the abrasive grains, polishes the game medium, and returns the separated abrasive grains using a sorting device that separates the polished game medium from the abrasive grains. An abrasive particle cleaning path is provided by branching off in the middle of the abrasive particle cleaning path, and in the polishing lifting device in which an abrasive particle cleaning device is disposed in this abrasive particle cleaning path, the abrasive particles are directly reduced, or the abrasive particles are polished by the abrasive particle cleaning path. A flow path switching device leading to the grain cleaning device is provided, and in conjunction with the opening/closing operation of this flow path switching device, a dust suction pipe whose one end is connected to the abrasive grain cleaning device and the other end is connected to the dust suction device is opened and closed. A dust suction switching device in a polishing/lifting device, characterized by being provided with a dust suction switching device.