JPH0647500Y2 - Separation gutter in medal polisher - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a medal polishing device mainly used in a medal game machine, a pachinko machine, etc., and particularly to a medal polishing machine for separating a purified medal and an abrasive material. It relates to a separation gutter in the device.

(Prior Art) Conventionally, as a medal-polishing device of this type, Japanese Patent Laid-Open No. 59-2196
There is provided a scouring device for playing coins of the official gazette. The scouring / cleaning device for playing coins puts a dirty medal and an abrasive into a housing case, drives a motor to rotate a screw conveyor-shaped agitating / cleaning member, and agitates the medals and the abrasive. By mixing and stirring by the sweeping member, the dirt adhering to the surface of the medal is cleaned up by the abrasive and is sequentially transferred upward, and the medal and the abrasive are discharged from the discharge port. The discharged medals and abrasives flow down the first selection gutter, the second selection gutter, the third selection gutter, and the fourth selection gutter through the communication pipe, and the abrasives are the first selection gutter, the second selection gutter, and the second selection gutter. Three
It drops from the small holes provided in the selection gutter and the fourth selection gutter, separates from the medal, and further returns to the accommodation case from the intake through the shooter. Further, the medals are formed so as to slide on the first selection gutter, the second selection gutter, the third selection gutter, and the fourth selection gutter to be stored in the medal storage case.

(Problems to be solved by the invention) However, in the selection gutter of the above-mentioned play / cleaning device for coins, small holes are provided on the entire surface at predetermined intervals to allow only the abrasive to pass. The diameter of the small holes is small to prevent passage of medals, and since it is small, the number of crosspieces between the small holes is large, and there is a problem that the abrasive is not blocked by the crosspieces and does not drop from the selection gutter. . In particular, when the medal and abrasive on the selection gutter are flowing down, the metal is heavy and slides on the selection gutter, but since the abrasive is made of synthetic resin and is light and small, it flows down while jumping on the selection gutter. I have something to do. Therefore, there is a problem that if the crosspiece is located at a portion where the jumped abrasive material is landed, it jumps further to flow down the selection gutter shape, and does not easily fall into the small hole. Further, there is a problem that the abrasive material splashed by the crosspiece between the small holes is sandwiched between the medals, and the abrasive material is placed on the upper surface of the medal, and the abrasive material is also stored in the medal storage case.

Further, for the above reason, there is a problem that the separation gutter cannot separate the medal and the abrasive in a short time.

Then, the abrasive material is thrown into the medal lending machine or the like together with the polished medal, and as a result, there is a problem that the abrasive material is clogged in the main part in the medal lending machine and causes a failure.

The present invention has been made in view of the above problems, and an object of the present invention is to reliably separate a medal and an abrasive material so that only the medal can be ejected out of the machine. It is intended to provide a separation gutter in the device.

(Means for Solving the Problems) In order to achieve the above object, the separation gutter in the medal-polishing device of the present invention is provided with a vertically elongated circular inner cylinder, which is rotated by driving a motor in the inner cylinder. An agitating and polishing mechanism with a shaft and a screw fixed to the rotating shaft lifts up the abrasive and medal from the lower inside of the inner cylinder and discharges them from the upper outlet of the inner cylinder. In a medal-polishing device formed so as to be separated by a separating gutter provided in a circular shape on the outside of a cylinder, the separating gutter is formed by connecting a plurality of steps, and the portion directly below the upper discharge port and the lower step of the step A plurality of small holes with a diameter larger than the polishing material are provided on the bottom of the separation gutter in the part directly below the step of the side separation gutter, and a long groove longer than the medal diameter is formed on the bottom of the separation gutter other than the part directly below the upper discharge port and the part just below the step. A plurality of vertically elongated holes were drilled along the medal flow direction. It is characterized by.

Further, in the separation gutter of the medal-polishing device of the present invention as defined in claim 2, the separation gutter of the medal-polishing device according to claim 1 is the cross section of the bottom surface of the separation gutter of each step formed in a plurality of steps. The shape is different from each other.

(Operation) The separation gutter in the medal-polishing device of the present invention configured as described above is sequentially lifted upward while stirring the medal and the abrasive from the lower inside of the inner cylinder by the stirring-polishing mechanism by the rotation of the screw. The medal, after being polished by the abrasive, is ejected together with the abrasive from the upper outlet. The discharged medals and abrasives flow down on the first separation gutter, the second separation gutter, and the third separation gutter that are connected in a stepped manner, and the abrasives are formed into a plurality of small holes immediately below the upper discharge port and immediately below the step. , The medallion is surely separated from the medal by dropping onto the inclined guide plate through a plurality of long groove holes other than the portion directly below the upper discharge port and the portion directly below the step, and the abrasive dropped on the inclined guide plate is returned to the inner cylinder again. . In particular, the abrasive does not flow down while continuously jumping over the first separating trough, the second separating trough, and the third separating trough, and even if it slightly jumps, it falls from the long groove hole.

(Example) An example will be described with reference to the drawings.

In FIG. 1, reference numeral 1 is a trolley having a plurality of wheels 2 on the lower side, and a polisher main body 100 for polishing a dirty medal on the right upper surface thereof.
Upright, and on the upper left side, an abrasive cleaner 200 and a dust collector 300
Is installed. Further, a medal storage box 400 is installed adjacent to the right side of the polisher main body 100, and a plurality of wheels 3 are fixed and movable below the medal storage box 400.

The polisher main body 100 has a circular vertically elongated inner cylinder 5 provided upright in a rectangular vertically long cover 4, a rotary shaft 7 having a screw 6 is provided at the center of the inner cylinder 5, and both ends of the rotary shaft 7 are Inner cylinder 5
The bearings 8 provided at the upper and lower ends of the are pivotally rotatably attached to form a stirring and polishing mechanism. Small diameter shaft portion at the lower end of the rotary shaft 7
A sprocket 9 is fixed to 7a, and a sprocket 11 fixed to a rotating shaft 10a of an electric motor 10 fixed on the carriage 1 and the sprocket 9 are connected by a chain 12. Further, a discharge port 13 is provided on the peripheral surface of the upper end portion of the inner cylinder 5, and a separation gutter 14 for separating the medal and the abrasive material (granular body of synthetic resin) which are agitated and polished and discharged from the discharge port 13 from each other. An inclined guide plate 17 for returning the taken-out gutter 15 and the separated abrasive material to the return port 16 provided on the peripheral surface of the lower end portion of the inner cylinder 5.
Is attached.

The separation gutter 14 for separating the medal and the abrasive material discharged from the discharge port 13 is composed of a first separation gutter 14a which is attached to the right and left with the lower end portion of the discharge port 13 as an apex, and the left and right lower ends thereof. The second separation gutters 14b each having a lower end inclined and connected to the lower side to form a step shape, and both ends connected to each lower end and inclined to the center and connected to a step shape. It is composed of a third separating gutter 14c.

A small hole smaller than the diameter of the medal and larger than the abrasive is formed in the bottom surface of the first separation gutter 14a with the apex as the center, on the left and right sides thereof, and immediately below the width range of the discharge port 13. A small hole group A made of a is provided, and a plurality of long groove holes b each having a diameter longer than the medal diameter are formed in a vertically long shape in the downstream direction of the small hole group A except for the portion directly below the discharge port 13. The holes are drilled to form a slot group B. The groove width of the long slot b is wider than the thickness of the medal, and the medal is large enough to pass through the long slot b if it becomes vertical.

The small hole a is provided directly below the discharge port 13 because a long slot b longer than the diameter of the medal is provided at the position directly below the discharge port 13 of the first separating gutter 14a. This is because there is a risk of falling from the long slot b.

Then, the medals discharged on the first separating gutter 14a, which has a medal discharging direction to the left and right with respect to the discharging port 13, will be slid by bending the direction at a right angle.

In this area, even if the hole through which the abrasive drops is longer than the diameter of the medal, even if the groove width is wider than the thickness of the medal, if it is smaller than the diameter of the medal, the medal will not slide due to surface sliding. .

After all, since the number of crosspieces between the holes is reduced by providing the long groove holes b, the abrasive material is prevented from sequentially jumping on the crosspieces and flowing down, and as a result, it is never discharged together with the medal.

Although the long slots b are arranged in the same row in this embodiment, they may be arranged in a staggered manner.

The first separating gutter 14a has a large width in the direction in which medals and abrasives are discharged from the discharge port 13, that is, the depth. This is because when the depth of the first separating gutter 14a is narrow, the medals are not smoothly discharged from the discharge port 13, and in the narrow bottom area, the discharged medals are not independent one by one but are in a stacked state. This is to prevent the abrasive material from being ejected in a state where the abrasive material is sandwiched between the medals.

Further, the bottom surface of the first separating gutter 14a is formed in a flat plate shape as shown in FIG. 4 in order to efficiently eliminate the overlapping state of the medals.

The second separation gutter 14b is connected to the first separation gutter 14a in a stepped manner, and a small hole group A is formed immediately below the step and a long groove group B is formed in the other part. As described above, when the long groove b is formed immediately below the step, the first separation gutter is formed.
This is because the medal sliding from 14a loses its planar state due to the step and falls slightly vertically on the second separating gutter 14b, so that the medal may just fit in the slot b and fall. . Since the medal slides in a plane shape in a region other than the region directly below the step, the medal does not drop from the long groove b even if the long groove group B is formed, and only the abrasive is made from the long groove b. Falls.

Further, the second separating gutter 14b has a bottom surface slightly curved inward as shown in FIG. In the second separation gutter 14b having a long sliding distance, this is for performing a medal sliding not at the surface but at the point in order to obtain smooth sliding.

Further, in the present embodiment, the third separation gutter 14c has small holes a formed at predetermined intervals on the entire surface thereof. This is because most of the abrasives are separated from the medals in the long groove b up to the second separation gutter 14b, but as in the second separation gutter 14b, a small hole group A is formed in a portion directly below the step of the step. Of course, the slotted hole group B may be formed in other portions. In addition, the bottom surface of the third separating gutter 14c is inclined slightly inward as shown in FIG. 6 so that the abrasive material and the medal can be reliably separated.

As described above, the second separation gutter 14b is connected to the first separation gutter 14a in a stepped manner with a drop, and similarly, the third separation gutter 14c is connected to the second separation gutter 14b in a stepped manner with a drop.

When the medal drops on the second-order separation gutter 14, the function of eliminating the overlapping state of the medal and removing the abrasives and the like adhering to the medal is fulfilled.

Further, a strip-shaped dustproof piece 14 'formed of an elastic plate such as rubber is provided in the middle of the separation gutter 14.

Further, a plurality of abrasive overflow small holes 18 through which only the abrasive is discharged to the left and right slightly below the outlet 13 of the inner cylinder 5.
To reduce the amount of the abrasive material discharged from the discharge port 13 and facilitate the separation in the separation gutter 14.

In addition, a plurality of discharge small holes 19 through which only the abrasive is discharged are formed on the opposite side of the discharge port 13 in order to purify the abrasive that has lost its polishing ability due to dirt on the medals being attached by circulation. , Outflow gutter 20 for abrasives discharged from this discharge small hole 19
To the abrasive cleaner 200, and the abrasive cleaner 2
The discharge gutter 21 of the purified abrasive 00 of 00 and the discharge gutter 23 of the hopper 22 for putting the dirty medals into the cover 4 were made to communicate with each other.

Further, a suction chamber 25 having a net-like upper surface 24 is provided in the vicinity of the lower side of the separation gutter 14 provided between the cover 4 and the inner cylinder 5 (see FIG. 3), and the suction pipe 26 of the dust collecting device 300 is provided as described above. It is connected to the suction chamber 25 so as to collect dust of the abrasive.

In addition, the medal storage box 400 is a transfer mechanism for lifting the polished medals sent from the carry-out gutter 15 upward.
27 and a medal storage tank 28 for pumped medals are provided.
Although not shown in the figure, the outlet 29 at the lower end incorporates a counting mechanism.

(Effects of the Invention) Since the present invention is configured as described above, it has the effects described below.

On the bottom of the separation gutter of the part directly below the outlet and the part directly below the steps of the separation gutters with multiple steps, there are multiple small holes with a diameter larger than the abrasive, and parts other than the part directly below the outlet and the part immediately below the steps. On the bottom surface of the separation gutter, by forming a plurality of long groove holes having a longer diameter than the medal diameter in a vertically elongated shape along the medal flow direction, the area of the holes formed in the separation gutter becomes very large, As a result, the chances of the abrasive material falling dramatically increase,
This has the effect of ensuring that the abrasive and the medal are separated. Also, by forming a long groove hole on the bottom of the separation gutter that is longer than the medal diameter and large enough to drop if the medal becomes vertical, the number of bars between the holes of the separation gutter is reduced. Therefore, the abrasive that flows down while jumping in the separation gutter is significantly reduced from bouncing at the crosspiece between the holes, and as a result, many abrasives are more likely to fall from the long groove holes, and the abrasive may drop from the small holes. In addition, all the abrasives can be separated from the medal by the separation gutter of the present invention, and also all the abrasives can be separated from the medal in a short time.

By separating all the abrasives from the medals, the abrasives will not be mixed in the polished medal storage case, and as a result, will not be thrown into the medal lending machine or the like.
There is no effect that the abrasive material is clogged inside the medal lending machine to cause a failure.

Further, in the separation gutter of the present invention as claimed in claim 2, since the separation gutter bottom surface of each step formed in a plurality of steps has different sectional shapes, the separation gutter is different from the medal. The separation of the polishing material in the separation gutter becomes faster, and the medal and the polishing material can be reliably separated, and as a result, the medal and the polishing material can be separated with a separation gutter having a shorter length. is there.

[Brief description of drawings]

The drawings show an embodiment of a medal polishing apparatus according to the present invention. FIG. 1 is a partially cutaway front view, FIG. 2 is a perspective view of a polishing machine main body, and FIG. 3 is a rear perspective view of the same. FIGS. 4 and 5 are sectional state views of the first separation gutter, FIG. 5 is a sectional state view of the second separation gutter, and FIG. 6 is a sectional state view of the third separation gutter. 5 …… Inner cylinder, 6 …… Screw, 13 …… Discharge port, 14 ……
Separation gutter, 14a ... First separation gutter, 14b ... Second separation gutter, 14c
...... Third separation gutter, a ... small hole, b ... long slot, 100 ...
Polisher body.

Claims (2)

[Scope of utility model registration request] 1. A circular vertically elongated inner cylinder is provided upright, a rotary shaft which is rotated by the drive of a motor is provided in the inner cylinder, and an abrading material and a medal are provided in the inner cylinder by a stirring and polishing mechanism in which a screw is fixed to the rotary shaft. It is pumped from the lower inside and discharged from the upper outlet of the inner cylinder,
In a medal-polishing device formed so that the discharged abrasive material and medals are separated from each other by a separation gutter provided on the outer side of the inner cylinder, the separation gutters are connected in a plurality of step shapes to form the upper part. Multiple small holes with a diameter larger than the abrasive are provided on the bottom of the separation gutter in the part directly below the discharge port and in the part below the step of the lower side separation gutter, and on the bottom of the separation gutter other than the part directly below the upper discharge port and the part just below the step. A separation gutter in a medal polishing device, wherein a plurality of long slots having a diameter longer than a medal diameter are formed in a vertically long shape along a medal flow direction. 2. A medal-polishing device according to claim 1, wherein the cross-sectional shapes of the bottoms of the separation gutters of the respective steps formed in a plurality of steps are different from each other. Separation gutter in.