JP5945498B2 - Lift polishing machine - Google Patents

Description

  The present invention relates to a lifting and polishing apparatus used on a gaming machine island in which a plurality of gaming machines are arranged.

  Gaming media such as pachinko balls and medals are supplied to the upper tank of each gaming machine through the upper cage of the gaming machine island, and are launched into the gaming board of each gaming machine, stored in the lower tank from the outlet, and stored in the lower tank. It is collected for use again through the lower tub. As game media is used in gaming machines, components containing dirt such as dust, rust, and fat adhere to the game media. This component may be referred to as “dirt component”, “dirt”, or “component”.

  The place where the game medium passes due to dirt adhering to the game medium, that is, the upper bowl, the upper tank, the game board, the lower tank, the lower bowl, etc., may become dirty and hinder the game. Therefore, it is necessary to remove dirt from the game medium.

  As one of the methods for polishing the game medium, the screw member (spiral body) is rotated inside the cylinder, so that the game medium and the abrasive in the cylinder are mixed and transferred upward (lifted). There is a method (for example, Patent Document 1). Note that the game medium and the abrasive may be referred to as “game medium or the like”.

  As an example of the abrasive, there is a resin-made abrasive formed in a pellet shape, and a large number of fine recesses are provided on the surface thereof.

  When the game medium in the cylinder and the abrasive are transported in a mixed state, the game medium and the abrasive come into contact with each other. At this time, the concave portions of the abrasive material rub off dirt from the game medium. As a result, the dirt is removed from the game medium, and the game medium is polished.

JP 2006-312085 A

  However, in the lift polishing apparatus described in the same document, the polishing power decreases due to the dirt transferred from the game medium to the abrasive by repeated polishing. There was a need to wash.

  As an example of the method for cleaning the abrasive, there is a series of methods in which the abrasive is taken out from the lift polishing apparatus, the abrasive is cleaned with a dedicated washing machine, and the cleaned abrasive is returned to the lift polishing apparatus. Further, as another example, the abrasive cleaning machine installed in the lift polishing apparatus scrapes off the dirt adhering to the abrasive together with the abrasive and collects the scraped abrasive using a dust collector, There are a series of ways to replace with new abrasive.

  However, with these methods, a series of operations for removing, cleaning, and returning the abrasive is required periodically, and a series of operations for collecting the shaved abrasive and replacing it with new abrasive is performed regularly. Is required. Such a series of operations increases the operating cost of the game arcade as much as it takes time. Therefore, there is a problem that the burden on the game hall increases as the number of cleaning operations of the abrasive increases.

  The present invention solves the above-described problems, and an object thereof is to provide a lift polishing apparatus that can reduce the number of times of cleaning work of an abrasive.

In order to solve the above-mentioned problem, the invention described in claim 1 is a pumping and polishing apparatus used in a gaming machine island in which a plurality of gaming machines are arranged. A cylinder erected on the gaming machine island; and a screw member disposed inside the cylinder, the gaming medium used in each of the gaming machines and the wet abrasive material being the cylinder The game medium, the abrasive, and the dirt component including dirt separated from the game medium are discharged from the upper part of the cylindrical body by being transported upward by the screw member in a mixed state inside the body. Conveying means, separating means for separating the discharged game medium, abrasive, and dirt component, respectively, and guiding the abrasive from the separating means to the transferring means via the water supply means With return passage Has, the screw member has a roughened surface possess, the water supply means is an opening near for maintenance of the screw member, corresponding to the starting end of transport path of the game medium It is provided in a position .
The invention described in claim 2 is the lift polishing apparatus according to claim 1, wherein the water supply means wets the abrasive in a moving state, and the transfer means includes a wet abrasive. The game medium is polished by the following.

According to the lift polishing apparatus according to claim 1, when the game medium and the abrasive are mixed and transported upward in the cylindrical body, the dirt component is separated from the game medium by the abrasive, and When the abrasive is moistened, it is not attached to the abrasive and is discharged from the upper part of the cylinder together with the game medium and the abrasive. The discharged abrasive is separated from the game medium and dirt components, and is guided to the transfer means via the return path. As described above, although the abrasive is repeatedly used, the dirt component does not adhere to the abrasive, so that the abrasive is not contaminated, and the number of cleaning operations of the abrasive can be reduced.
In addition, by roughing the surface of the screw member, the frictional force generated between the abrasive and the screw member is reduced, the load on the drive motor and the screw member is reduced, and durability is improved. Can be improved.

Further, according to the lift polishing apparatus according to claim 2, the arithmetic average roughness of the surface of the screw member is 5 μm or more and 20 μm or less, so that the frictional force generated between the abrasive and the screw member is reduced. It is remarkable.
Furthermore, according to the lift polishing apparatus of the third aspect, the frictional force generated between the abrasive and the screw member is further reduced because the wire has a streamlined cross-sectional shape.

  Furthermore, according to the lift polishing apparatus according to claim 4, if the streamlined cross-sectional curved surface is defined as the wire width W, the radius is set to 5 W / 8 or more and 5 W / 6 or less, so that the abrasive and screw The frictional force generated between the members is greatly reduced.

  Furthermore, according to the lift polishing apparatus according to claim 5, when the curved surface of the streamlined cross-sectional shape is the thickness T of the wire, the radius is set to 5T / 4 or more and 5T / 2 or less. The frictional force generated between the members is greatly reduced.

  Furthermore, according to the lift polishing apparatus according to claim 6, the corner portion of the rectangular cross-sectional shape has a chamfered portion having a radius of 0.5 [mm] or more and T / 2 or less, where the plate thickness is T. In addition, the abrasive is less likely to bite into the gap between the corner and the cylinder wall, and the frictional force generated between the abrasive and the screw member can be reduced.

  Furthermore, according to the lift polishing apparatus according to claim 7, since the corner portion of the rectangular cross-sectional shape is a chamfered portion having a radius of 2 mm or more and 3 mm or less, polishing is performed in a gap between the corner portion and the cylinder wall. The material is further less bitten and the frictional force generated between the abrasive and the screw member is significantly reduced.

The front view of the lift polishing apparatus arrange | positioned at game machine island. The side view of a lifting polishing apparatus. The functional block diagram of a humidification means. The figure of a screw member. The figure of the kind A screw member. The figure of the screw member of type B. The cross-sectional view of a screw member. The figure which shows the relationship between plate | board width, plate | board thickness, and a curved surface in the cross section of a screw member. The conceptual diagram of a water supply means. The top view of a lift polishing apparatus. The conceptual diagram which shows the other example of a water supply means. The conceptual diagram which shows the other example of a water supply means. The conceptual diagram which shows the other example of a water supply means. The cross-sectional view of another screw member.

[First Embodiment]
A lift polishing apparatus according to a first embodiment of the present invention will be described with reference to FIGS. The lifting and polishing apparatus is installed on a gaming machine island where a plurality of gaming machines are arranged, and lifts the gaming medium used in each gaming machine while polishing it so that it can be supplied to each gaming machine. . Here, the gaming machine may be referred to as a pachinko machine. In addition, game media used in gaming machines may be referred to as pachinko balls or out balls.

FIG. 1 is a front view of the lift polishing apparatus 10 disposed on the gaming machine island 1, FIG. 2 is a side view of the lift polishing apparatus 10, and FIG. 3 is a functional block diagram of the humidifying means 11.
As shown in FIGS. 1 to 3, the lifting and polishing apparatus 10 is used for a gaming machine island 1 in which a plurality of gaming machines are arranged, and includes a cylinder 30 and a transfer means 400.
[Cylinder 30]
As shown in FIGS. 1 and 2, the cylinder 30 is erected on the gaming machine island 1. The cylindrical body 30 is provided between a lower end portion having a cylindrical shaft extending substantially horizontally, an upper end portion having a cylindrical shaft extending substantially upward, and a curved cylinder provided between the lower end portion and the upper end portion. And an intermediate portion having a shaft.

  An inflow port is provided at the lower end of the cylindrical body 30. A discharge port 31 is provided at the upper end of the cylindrical body 30. The inflow port of the cylindrical body 30 is connected with a basket through which the out ball flows down. As described above, a dirt component is attached to the out ball used in the gaming machine.

[Transporting means 400]
The transfer means 400 includes a screw member 40 (see FIG. 4) that is provided inside the cylinder body 30 and is arranged so that the axis is aligned with the cylinder shaft, and the motor 6 that rotates the screw member 40. .

  The screw member 40 is separated from the out sphere, the abrasive, and the out sphere by moving upward in a state where the abrasive and the out sphere wetted by the water supply means 20 are mixed inside the cylindrical body 30. The dirt component including the dirt is discharged from the discharge port 31 of the cylindrical body 30. As an example of the abrasive, there is a resin-made abrasive formed in a pellet shape, and a number of fine depressions (dimples) are provided on the surface thereof.

  When the screw member 40 is rotated by the motor 6, the abrasive and the out ball are mixed and washed while rotating. At that time, the dirt component adhering to the out sphere is separated by the abrasive. The separated dirt component tends to adhere to the abrasive.

  Due to frictional heat generated when the abrasive and the out-sphere are mixed, the humidity inside the cylindrical body 30 decreases, and the moisture in the abrasive is lost until the abrasive is discharged from the discharge port 31. . However, even if the moisture is lost, the water supply means 20 wets the abrasive with water so that a minimum amount of moisture remains in the abrasive, so that the dirt component does not adhere to the abrasive. That is, the dirt component is discharged from the discharge port 31 in a state where it is separated from the out ball and the abrasive.

(Screw member)
Next, the screw member 40 will be described with reference to FIGS. FIG. 4 is a view of the screw member 40.
(Screw member)
As shown in FIG. 4, the screw member 40 is obtained by connecting two types of screw members 40A and 40B by welding. 40 A of screw members are arrange | positioned from the intermediate part of the cylinder 30 to an upper end part, and the upper end part is connected with the motor 6 (refer FIG. 1). The screw member 40B is disposed from the lower end portion of the cylindrical body 30 to the intermediate portion, and the lower end portion is a free end.
(Screw member)
The screw member 40B is horizontally transferred from the lower end portion of the cylindrical body 30 to the intermediate portion while mixing the game medium and the abrasive. At this time, since the screw member 40B turns in the space filled with the game medium or the like, it receives a large frictional resistance from the game medium or the like. The game medium and the like raised up to the middle portion of the cylindrical body 30 by the screw member 40B are further raised by the screw member 40A. The screw member 40A is raised from the middle portion to the upper end portion of the cylindrical body 30 while mixing the game medium and the abrasive. At this time, due to the weight of the game medium or the like, stress (tensile stress and shear stress) is applied to the screw member 40A.

  FIG. 5 is a view of the screw member 40A, and FIG. 6 is a view of the screw member 40B. As shown in FIGS. 5 and 6, the screw members 40 </ b> A and 40 </ b> B are each formed by winding a wire in a coil shape. The screw member 40A is larger than the screw member 40B in the shape of the cross section of the wire, the outer diameter of the coil, and the winding pitch.

The shape of the cross section of the screw members 40A and 40B, the outer diameter of the coil, and the winding pitch are determined according to the size of the game medium.
An example of the outer diameters and winding pitches of the coils of the screw members 40A and 40B. The screw member 40A has an outer diameter of about 65 mm and a winding pitch of 50 mm. The screw member 40B has an outer diameter of about 58 mm and a winding pitch of about 40 mm.

An example of the shape of the cross section of screw member 40A, 40B is demonstrated with reference to FIG. FIG. 7 is a cross-sectional view of the screw members 40A and 40B.
As shown in FIG. 7, the screw members 40A and 40B have a streamlined cross-sectional shape (cross-sectional shape of the wire).
In the screw member 40A, the streamlined cross-sectional shape is as follows.
W = 13, T = 6, R = 8.5
In the screw member 40B, the streamlined cross-sectional shape is as follows.
W = 10, T = 4, R = 7.3
Here, W is the plate width, T is the plate thickness, and R is the radius of the curved surface 41 with the point O as the center.
In these streamlined cross-sectional shapes, both ends 43 are pointed.

Next, in the streamlined cross-sectional shape, the radius R of the curved surface 41 is represented by a plate width W or a plate thickness T.
FIG. 8 is a diagram showing the relationship between the plate width W, the plate thickness T, and the radius R of the curved surface 41 in the streamlined cross-sectional shape. Here, an angle from the point O to the range from the vertex 42 of the curved surface 41 to the end 43 is defined as “θ”.

As shown in FIG. 8, the following equation is derived from the condition that both ends 43 are pointed in a streamlined cross-sectional shape.
R * sin θ = W / 2 (1)
R * cos θ = R−T / 2 (2)
When θ is eliminated from the equations (1) and (2), the following equation is obtained.
R = (W ² + T ² ) / 4T (3)

Next, a ratio between the plate width W and the plate thickness T is obtained.
In the screw member 40A, the ratio between the plate width W and the plate thickness T is as follows.

T: W = 6: 13
That is, W = 13T / 6
In the screw member 40B, the ratio between the plate width W and the plate thickness T is as follows.
T: W = 4: 10
That is, W = 5T / 2
Here, the relationship between W and T can be expressed by the following equation.
2W / 5 ≦ T ≦ 6W / 13 (4)
13T / 6 ≦ W ≦ 5T / 2 (5)

Next, the relationship between the plate width W and the radius R is obtained from Expression (4).
From equation (4), substituting T = 2W / 5 into equation (3) yields R = 29 W / 40.
From equation (4), substituting T = 6W / 13 into equation (3) yields R = 205W / 312.
Therefore, the streamlined cross-section curved surface 41 has a radius R of 205W / 312 or more and 29W / 40 or less.

Next, the relationship between the plate thickness T and the radius R is obtained from the equation (5).
From equation (5), substituting W = 13T / 6 into equation (3) yields R = 205T / 144.
From equation (5), substituting W = 5T / 2 into equation (3) yields R = 29T / 16.
Accordingly, the streamlined cross-sectional curved surface 41 has a radius R of 29T / 16 or more and 205T / 144 or less.

  As described above, the radius R of the curved surface 41 can be expressed by the plate width W or the plate thickness T.

The radius R of the curved surface 41 is preferably expressed as described above, but may be expressed as follows.
Here, the relationship between W and T is expressed by the following equation.
W / 3 ≦ T ≦ W / 2 (6)
2T ≦ W ≦ 3T (7)

Next, the relationship between the plate thickness W and the radius R is obtained from Equation (6).
From equation (6), substituting T = W / 3 into equation (3) results in R = 5W / 6.
From equation (6), substituting T = W / 2 into equation (3) yields R = 5W / 8.
Therefore, the streamlined cross-section curved surface 41 has a radius R of 5W / 8 or more and 5W / 6 or less.

Next, the relationship between the plate thickness T and the radius R is obtained from the equation (7).
If W = 2T is substituted into equation (3) from equation (7), R = 5T / 4.
From equation (7), substituting W = 3T into equation (3) results in R = 5T / 2.
Therefore, the streamlined cross-section curved surface 41 has a radius R of 5T / 4 or more and 5T / 2 or less.

(Manufacture of screw member 40)
The screw member 40 is formed by a coining mold using a spring steel wire. For example, a silicon chrome steel oil tempered wire is used as the spring steel wire. In this way, two types of screw members 40A and 40B having different outer diameters and pitches are manufactured.
Two types of screw members 40A and 40B are connected by welding. At this time, the arithmetic average roughness (Ra) of the surfaces of the screw members 40A and 40B is, for example, 30 μm or more. The arithmetic average roughness (Ra) is measured using a three-dimensional measurement laser microscope.

(Blasting)
Metal fine particles are sprayed onto the surface of the screw member 40 at a high speed (for example, 40 m / sec to 70 m / sec) (blast processing). For example, molybdenum dioxide is used as the metal fine particles. A large number of fine depressions are provided on the surface of the screw member 40 by blasting. The arithmetic average roughness (Ra) of the surface of the screw member 40 after processing is, for example, 20 μm or less. Furthermore, although it is possible to make it smaller than 5 micrometers, from the problem of cost, 5 micrometers or more and 20 micrometers or less are preferable. It is not limited to blast processing, and may be rough surface processing in which a large number of fine depressions are provided on the surface of the screw member 40, and any processing that can reduce frictional resistance received from a game medium or the like.

  The surface is more uniform and smooth than the surface of the screw member 40 having the arithmetic average roughness of 30 μm or more due to the numerous fine depressions. Therefore, the frictional resistance between the surface and the abrasive is reduced. Further, the surface strength is increased and the durability is improved. For example, the unevenness generated in the welded portion becomes smooth, and the strength of the welded portion increases.

  Although the screw member 40 has a streamlined cross-sectional shape with sharpened ends 43, the cross-sectional shape is not limited thereto. For example, the streamlined type may be a teardrop type (also referred to as “wing type”) in which one end 43 is sharp and the other end 43 is rounded. Good.

[Overall configuration of lifting and polishing equipment]
The cylindrical body 30 and the transfer unit 400 have been described above. Next, the overall configuration of the lift polishing apparatus 10 incorporating these means will be described with reference to FIGS.

  As shown in FIGS. 1 to 3, the lift polishing apparatus 10 includes a main body 2, an island tank 3, a humidifying means 11, a water supply means 20, a water amount adjusting means 25, a separation, in addition to the cylinder 30 and the transfer means 400. Means 50 and return passage 60 are provided.

(Main unit 2)
The main body 2 includes a base 4 that is fixed at a predetermined position in the game arcade, and a column 5 that is erected on the base 4. An island tank 3 is provided on the upper side of the column 5. Separating means 50 and a motor 6 are provided at the upper end of the column 5.

  The game medium lifted together with the abrasive by the screw member 40 is separated from the abrasive by the separating means 50, and supplied to each gaming machine through the island top (not shown). The game media used in each gaming machine is guided from the out ball collection basket 7 to the screw member 40 through the out ball throwing bowl 8.

  The abrasive separated from the game medium by the separating means 50 is guided to the screw member 40 by the return passage 60 and is transported together with the game medium by the screw member 40. Thus, the abrasive is repeatedly used in the same manner as the game medium.

(Shimakami tank 3)
The island tank 3 temporarily stores game media when the game media fills the islands. An overflow passage (not shown) for guiding the game medium overflowing from the island tank 3 to the screw member 40 is connected to the island tank 3.

(Humidifying means 11)
As shown in FIGS. 1 and 3, the humidifying unit 11 includes a humidity sensor 12, a control unit 13, and a water supply unit 20.

Friction heat is generated in the cylindrical body 30 by mixing the game medium and the abrasive. The inside of the cylinder 30 is dried by the frictional heat.
The humidifying means 11 is configured not to allow dirt to adhere to the abrasive in the cylindrical body 30. The main cause of the dirt adhering to the abrasive is that the abrasive in the cylinder 30 is dry. As means for preventing dirt from adhering to the abrasive, for example, 1) means for moistening the abrasive with water before polishing the game medium; 2) moistening the abrasive with water when the game medium is being polished Means; 3) There is means for moistening the screw member 40 with water. The means 1) and 2) may be referred to as means for directly moistening the abrasive with water. The means 3) may be referred to as means for indirectly moistening the abrasive with water.

  Hereinafter, means for moistening the abrasive with water before polishing the game medium will be described, means for moistening the abrasive with water when polishing the game medium, and means for moistening the screw member 40 with water Will be described later.

  The humidifying means 11 wets the abrasive with water by continuously or intermittently supplying water to the abrasive before being transferred by the screw member 40 based on the humidity in the cylinder 30. Thus, the inside of the cylindrical body 30 is humidified so that the humidity in the cylindrical body 30 is maintained within a predetermined range. Note that the humidifying means 11 may be configured in any way as long as the abrasive is moistened with water before the game medium is polished (immediately before the game medium is guided to the screw member 40). If the humidifying means 11 is disposed at a position immediately before being guided to the screw member 40, the abrasive can be effectively moistened with water. If the humidifying means 11 is arranged at a position some distance from the immediately preceding position, the humidifying means 11 can be arranged in an effective empty space.

  The predetermined range is preferably 50% to 60%, for example. The reason for this range is that when the humidity is less than 50%, the effect of preventing the dirt component from adhering to the abrasive becomes low, and the effect of suppressing the generation of static electricity becomes low. Further, when the humidity exceeds 60%, the dirt component tends to adhere to the game medium or the abrasive due to the wetness of the game medium or the abrasive, making it difficult to separate the dirt component.

  The humidity sensor 12 outputs a signal corresponding to the humidity in the cylindrical body 30. For example, the control unit 13 controls the amount of water supplied by the water supply unit 20 based on the signal output from the humidity sensor 12 so as to adjust the humidity in the cylinder 30.

  In addition, the humidity sensor 12 may be arrange | positioned in multiple places over the full length of the cylinder 30, for example at the start end part (lower end part), the intermediate part, and the termination | terminus part (upper end part), respectively. At this time, the control means 13 controls the water supply means 20 so as to finely adjust the humidity in the cylinder 30 based on the output signal of each humidity sensor 12.

(Water supply means 20)
As shown in FIG. 1, the water supply means 20 is disposed in the middle of the return passage 60. The water supply means 20 is configured to wet the abrasive passing through the return passage 60 with water. Any configuration may be used as long as the entire abrasive passing through the return passage 60 is wetted with water.

  As an example, there is a configuration in which the abrasive is moistened by spraying water on the abrasive in the return passage 60.

  FIG. 9 is a conceptual diagram of the water supply means. As shown in FIG. 9, means for spraying water on the abrasive in the return passage 60 includes, for example, a nozzle 21, a pump 22, a tank (water tank) 23, and a water amount sensor 24. The nozzle 21 is disposed in the ceiling portion of the return passage 60. The pump 22 supplies the water in the tank 23 to the nozzle 21 at a high pressure. The water amount sensor 24 outputs a signal corresponding to the amount of water in the tank 23. Informing means for informing the amount of water in the tank 23 based on the output signal may be provided.

  In order to wet all of the polishing material passing through the return passage 60 with water, the water spraying range may be configured to be a predetermined region (full width and predetermined length) of the return passage 60.

  For example, what is necessary is just to comprise so that the range which sprays water may be extended to the predetermined area | region of the return channel | path 60. FIG. At this time, since the entire abrasive in the predetermined region can be moistened by a single spray, water may be sprayed intermittently.

  Further, for example, when the range in which water is sprayed is narrow with respect to the entire width of the return passage 60, the spraying direction may be changed along the width direction. Accordingly, water can be poured not only on the abrasive passing through the central portion of the return passage 60 but also on the abrasive passing through the end of the return passage 60.

  Furthermore, for example, when the range in which water is sprayed is narrower than the predetermined length of the return passage 60, the abrasive flows along the length direction in the range in which water is sprayed. , Can moisten the flowing abrasive.

  In the return passage 60, when the abrasives overlap vertically, the sprayed water enters the gaps between the abrasives, and the lower abrasive can be moistened.

  The sprayed water is preferably alkaline electrolyzed water having a pH value of 8-12. Alkaline electrolyzed water moistening the abrasive material penetrates into the gap between the dirt and the abrasive material due to its penetrating power, and the dirt is trapped and the dirt component does not adhere to the abrasive material (penetration, peeling) effect). In addition, the lipids in the soil are decomposed to become soap (soap effect). Furthermore, when the alkaline electrolyzed water touches the game medium, the game medium is sterilized (bactericidal effect). Further, the game medium is not rusted by alkaline electrolyzed water (rust prevention effect).

  In addition, since the effect will increase when the pH value of alkaline electrolyzed water is increased, alkaline electrolyzed water having a pH value corresponding to the degree of contamination may be used. In alkaline electrolyzed water having a pH value of less than 8, there is a tendency that the respective effects cannot be sufficiently obtained. In alkaline electrolyzed water having a pH value exceeding 12, although the respective effects are enhanced, it is necessary to add sodium peroxide and hydrogen peroxide, so that the production cost is further increased.

(Water volume adjusting means 25)
The water amount adjusting means 25 is arranged in the water supply means 20 in FIG. 1 or connected to the water supply means 20. The water amount adjusting means 25 is configured to adjust the amount of water according to the amount of abrasive flowing through the return passage 60, for example.

  As means for adjusting the amount of water, there are, for example, one configured to adjust the nozzle diameter, or one configured to adjust the pressure of water supplied to the nozzle by a pump. Adjustment of the nozzle diameter and water pressure may be performed manually or automatically.

  The quantity of game media used for the gaming machine island 1 can be predicted according to business hours and business days. Therefore, since the amount of abrasive can also be predicted, the nozzle diameter and the like may be manually adjusted according to business hours and business days.

Further, a sensor (not shown) for detecting the amount of abrasive flowing in the return passage 60 may be provided, and the nozzle diameter and the like may be automatically adjusted based on a signal output from the sensor.
Although the amount of water is adjusted by the water amount adjusting means 25 according to the amount of abrasive flowing through the return passage 60, the amount of water may be adjusted according to the load of the motor 6.

(Separation means 50)
Next, the separating means 50 will be described with reference to FIGS. FIG. 10 is a plan view of the lift polishing apparatus 10.

  The separation means 50 is configured to separate the game medium, the abrasive, and the dirt component discharged from the discharge port 31 of the cylindrical body 30. The separating means 50 may be any means as long as it can separate the game medium, the abrasive, and the dirt component. The game medium, the abrasive, and the dirt component are separated based on their size and weight being different from each other.

  For example, as shown in FIGS. 1 and 10, the separating means 50 has a scissors 51, a separating means 52, a collecting hose 55, a separating passage 53, and an abrasive stock 54. The spider child 51 is disposed so as to face the discharge port 31 of the cylindrical body 30. FIG. 1 shows a three-stage spear child 51.

  The scissors child 51 has a plurality of rails arranged with a gap of a predetermined width. The plurality of rails are configured to guide the game medium along the rails and to drop the abrasive and the dirt component from the gaps.

  The sorting means 52 is configured to separate the falling abrasive and dirt components. As an example of the sorting means 52, the dirt component and the abrasive are separated by collecting the dirt component based on the fact that the dirt component is extremely lighter than the abrasive. The dust collection of the dirt component is performed by sucking only the dirt component out of the falling abrasive and the dirt component, and is performed by blowing only the dirt component. FIG. 1 shows a separation means 52 of the type that sucks dirt components.

  As shown in FIG. 1, the abrasive and the dirt component separated from the game medium by the scissors 51 are guided to the inlet of the separation passage 53 (the upper end of the separation passage 53 in FIG. 1). A collecting hose 55 is disposed between the separation passage 53 and the separating means 52, and dirt components are sucked into the collecting hose 55, and only the abrasive is guided to the abrasive stock 54.

  The game medium separated from the abrasive and the dirt component is sent to the gaming machine and used for the game. The abrasive separated from the game medium and the dirt component is guided to the screw member 40 and used for polishing the out sphere. The dirt component separated from the game medium and the abrasive is collected by the sorting means 52 so as not to be sent to the game machine or the cylinder 30.

(Return passage 60)
Next, the return passage 60 will be described with reference to FIGS. 1 and 10.

  As shown in FIGS. 1 and 10, the return passage 60 is disposed to be inclined downward. The upper end opening of the return passage 60 communicates with the abrasive stock 54. The lower end of the return passage 60 is opened facing the screw member 40. Note that the return passage 60 may include the separation passage 53 and the abrasive stock 54.

  A water supply means 20 is provided in the middle portion of the return passage 60. The return passage 60 is configured to guide the abrasive from the separating unit 50 to the screw member 40 via the water supply unit 20.

  By passing through the water supply means 20, it is possible to always wet the abrasive guided to the screw member 40, and it is possible to polish the out sphere with the wet abrasive.

  The return passage 60 guides the abrasive to the starting end of the screw member 40 (the lower end of the screw member 40B). As a result, it is possible to polish the gaming medium with the abrasive material for a long section from the start end portion of the screw member 40 to the end portion (the upper end portion of the screw member 40A), and it is possible to improve the polishing ability of the apparatus. .

  The position where the abrasive is guided is not limited to the starting end portion of the screw member 40, but may be any other portion of the section from the starting end portion to the terminal end portion of the screw member 40. Thereby, it is possible to increase the degree of freedom when designing the return passage 60, the water supply means 20, and the like.

  Further, the return passage 60 may guide the abrasive to the starting end portion of the screw member 40 and the other portion (for example, the intermediate portion). Through the wet abrasive material not only at the beginning but also to other parts, penetration, peeling effect, soap effect, bactericidal effect, as described in the description of alkaline electrolyzed water used as sprayed water, and It becomes possible to enhance the antirust effect.

[Action]
Next, the operation of the lift polishing apparatus 10 will be described.

(Delivery of game media, etc.)
By rotating the screw member 40 inside the cylinder 30 by the motor 6, the game medium in the cylinder 30 and the wet abrasive are mixed and fed. Thereby, the dirt component is separated from the game medium. When the abrasive is moistened, the dirt component is not attached to the abrasive and is discharged from the upper portion of the cylindrical body 30 together with the game medium and the abrasive. The discharged abrasive is separated from the game medium and dirt, and is guided to the screw member 40 via the return passage 60. As described above, the abrasive is repeatedly used. However, since the dirt component does not adhere to the abrasive, the abrasive is not contaminated, and the number of cleaning operations of the abrasive can be reduced. Thereby, it is possible to reduce the operating cost of the amusement hall.

  When the game medium and the wet abrasive are being pumped, the screw member 40 receives frictional resistance from the game medium and the abrasive. Since the abrasive is wet, the abrasive becomes heavier and the frictional resistance increases, so that a large stress is applied to the screw member 40 and a large load is applied to the motor 6. However, after the blasting process, the frictional resistance is reduced because the surface roughness of the screw member 40 is reduced. Further, the surface strength of the screw member 40 is improved. Therefore, the screw member 40 is not broken, and the load applied to the motor 6 is reduced, so that the durability as a lifting and polishing apparatus is improved. From this point as well, it is possible to reduce the operating cost of the game hall.

  If the game medium and the abrasive are used as fluids, the screw member 40 relatively moves in the fluid when the game medium and the abrasive are being transported. Since the curved surface 41 of the screw member 40 has a streamlined cross-sectional shape, when the game medium and the abrasive move along the curved surface 41, the frictional resistance that the screw member 40 receives from the game medium and the abrasive is reduced. The shearing force applied to the screw member 40 is reduced, and the load applied to the motor 6 is also reduced.

  Since the screw member 40B having a small cross section and a small winding pitch is provided from the lower end portion to the intermediate portion of the cylindrical body 30, the frictional resistance received from the game medium or the like when the game medium or the like is transferred horizontally is reduced. Since the screw member 40A having a large cross section and a large winding pitch is provided from the middle part to the upper end part of the cylindrical body 30, even when the stress received from the game medium or the like increases when the game medium or the like is raised, The screw member 40A can sufficiently withstand.

(Housing of abrasive)
In the lift polishing apparatus 10, the abrasive is repeatedly used for polishing. The abrasive is housed inside the lift polishing apparatus 10 including the abrasive stock 54.

(Abrasion of game media)
When the lift polishing apparatus 10 is started, the motor 6 rotates and is transferred in a state where the game medium and the abrasive are mixed in the cylindrical body 30 by the turning of the screw member 40. When the game medium and the abrasive are mixed together, the dirt component does not adhere to the abrasive because the abrasive is moistened with water. Thereby, the abrasive is not soiled. Further, the game medium, the abrasive and the dirt component are discharged from the discharge port 31 of the cylindrical body 30 in a state where they are separated.

(Separation)
When the game medium, the abrasive and the dirt component are discharged from the discharge port 31 of the cylindrical body 30, the game medium and the abrasive and the dirt component are separated by the scissors 51. Further, the separating means 52 separates the abrasive and the dirt component. As a result, the separated game medium can be used for games, the abrasive can be used again for polishing, and the separated dirt component can be prevented from coming into contact with the game medium or the abrasive. Can be recovered.

(Moisten the abrasive with water)
The separated abrasive is guided to the screw member 40 via the water supply means 20 by the return passage 60. As a result, the abrasive can be repeatedly used for polishing the game medium, and every time the abrasive is used for polishing, the water is supplied through the water supply means 20, so that the abrasive can be reliably moistened with water. it can. Thereby, even if it is repeatedly used for polishing, the abrasive is not contaminated, and the number of cleanings of the abrasive can be reduced.

(Game use and collection of game media)
Further, the game medium polished by the abrasive is separated from the dirt component, supplied to each gaming machine through a predetermined passage, and collected again from the gaming machine to the lifting and polishing apparatus 10. Since no dirt is attached to the medium, and only one game of dirt is attached to the game medium, it is avoided that the game is disturbed due to the dirt.

(Re-grinding of game media)
It is possible to polish the game medium by mixing the game medium collected from the gaming machine and the abrasive material guided to the screw member 40 by the return passage 60 and moistened with water inside the cylindrical body 30. It becomes.

(Maintenance and inspection of water supply means 20 etc.)
The gaming machine island 1 is provided with an opening for maintenance and inspection of the screw member 40 and is opened at the time of maintenance and inspection, and is normally closed by a lid member (not shown). The water supply means 20 is disposed in the vicinity of the starting end of the screw member 40 (where the out ball and the abrasive are guided) (see FIG. 1).

  When the opening for maintenance inspection is opened, the water supply means 20 can be seen through the opening. When performing maintenance inspection of the screw member 40, maintenance inspection of the water supply means 20 (nozzle 21, pump 22, tank) is performed together. 23, maintenance and inspection of the water amount sensor 24, etc.).

  As described above, according to the lift polishing apparatus 10 according to the above-described embodiment, dirt is not attached even if the abrasive is repeatedly used for polishing, and thus the number of cleaning operations of the abrasive can be reduced.

  In addition, before the abrasive is used for polishing, the abrasive can be surely wetted by passing through the water supply means 20. Further, the separation means 52 has an effect that dust components can be reliably collected.

(Other examples of water supply means 20)
Although the said embodiment demonstrated the water supply means 20 comprised so that an abrasive could be moistened by spraying water, it is not restricted to this.

  Next, another example of the water supply means 20 will be described with reference to FIG. The water supply means 20 is configured to wet the abrasive by dripping water onto the abrasive in the return passage 60.

  FIG. 11 is a conceptual diagram showing another example of the water supply means. As shown in FIG. 11, the water supply unit 20 includes a tank 23, a water amount sensor 24, a water amount adjustment unit 25, and a switch 26. The water amount adjusting means 25 adjusts the amount of water dripped. The switch 26 opens / closes the flow path to allow / prohibit the dripping of water.

  In order to wet all of the polishing material passing through the return passage 60 with water, the range in which the water is dropped is configured to be a predetermined region (full width and predetermined length) of the return passage 60. The use of alkaline electrolyzed water as the water to be used is the same as in the above embodiment in which water is sprayed.

  Furthermore, another example of the water supply means 20 will be described with reference to FIG. Another example of the water supply means 20 is configured to moisten the abrasive by putting the inside of the return passage 60 in a humidified state.

  FIG. 12 is a conceptual diagram showing another example of the water supply means 20. As shown in FIG. 12, the water supply means 20 includes a tank 23, a water amount sensor 24, a fan 27, and an ultrasonic generator 28. The water supply means 20 pulverizes water finely by ultrasonic vibration of the ultrasonic generator 28 and blows it out by a fan 27. The wall (bottom wall and side wall) of the return passage 60 is provided with a fine hole (not shown) through which the blown water droplets pass. In addition, as the water supply means 20, instead of the ultrasonic generator 28, a heater (not shown) may be provided, and water vapor generated by heating water may be blown out by the fan 27.

  The inside of the return passage 60 is humidified so that the entire abrasive material passing through the return passage 60 is moistened with water, the alkaline electrolyzed water is used as water when creating the humidified state, and the humidified state is further increased. Providing the water amount adjusting means to adjust is the same as in the above-described embodiment in which water is sprayed.

  In the above embodiment and modifications, the means for moistening the abrasive with water before polishing the game medium has been described.

  Next, an example of means for moistening the abrasive with water when the game medium is being polished will be described with reference to FIG.

  FIG. 13 is a conceptual diagram showing another example of the water supply means 20. As shown in FIG. 13, the water supply unit 20 is configured to humidify the inside of the cylindrical body 30 by spraying water into the cylindrical body 30. By spraying water inside the cylinder 30, the humidity inside the cylinder 30 can be increased and the abrasive in the cylinder 30 can be moistened with water. As a result, it is possible to prevent the dirt component from adhering to the abrasive.

  Further, when the humidity in the cylindrical body 30 is reduced due to frictional heat or the like when the game medium and the abrasive are mixed, static electricity is easily generated, and the abrasive and the dirt component are charged, and the abrasive is contaminated with the dirt component. However, by spraying water into the cylindrical body 30, a decrease in humidity in the cylindrical body 30 can be suppressed, and generation of static electricity can be suppressed.

  The water supply means 20 arrange | positioned at the start end part (lower end part) and intermediate part of the cylinder 30 is shown in FIG. A humidity sensor 12 that outputs a signal corresponding to the humidity in the cylinder 30 is disposed upstream of the water supply means 20. In FIG. 13, the water supply means 20 is arranged one by one at the start end and the middle part of the cylinder 30, but a plurality (for example, at a predetermined interval in the circumferential direction of the cylinder 30). It may be arranged.

  The use of alkaline electrolyzed water as the water to be sprayed and the provision of a water amount adjusting means for adjusting the amount of water to be sprayed are the same as in the above embodiment.

  Note that the water supply means 20 for moistening the abrasive with water when the game medium is being polished is not limited to spraying water, but water dropping means may be used.

  In the modification shown in FIG. 13, as the humidifying means 11, the means for directly moistening the abrasive with water when the game medium is being polished has been described, but the means for indirectly moistening the abrasive with water is used. There may be.

  Next, means for moistening the screw member 40 with water will be described as an example of means for indirectly moistening the abrasive with water. For example, the screw member 40 has water retention. Thereby, the screw member 40 can be moistened with water. For example, in the screw member 40, the surface (conveying surface) that comes into contact with the abrasive during lifting has water retention. When the conveyance surface is moistened with water, the abrasive can be indirectly moistened with water by the abrasive coming into contact with the conveyance surface at the time of lifting. Further, by moistening the screw member 40 with water, the inside of the cylinder 30 can be humidified, and static electricity can be hardly generated.

  The use of alkaline electrolyzed water as water for moistening the screw member 40 and the provision of water amount adjusting means for adjusting the amount of water are the same as in the above embodiment.

  In the said embodiment, the water supply means 20 which wets an abrasive | polishing material with water before grinding | polishing a game medium was shown. Further, in the modification shown in FIG. 13, the water supply means 20 for moistening the abrasive with water when the game medium is being polished is shown. However, the water supply means 20 may be combined. . As a result, the abrasive can be moistened with water in a more timely and more appropriate place.

[Second Embodiment]
Next, the screw member 40 according to the second embodiment will be described with reference to FIG.
FIG. 14 is a cross-sectional view (cross-sectional shape of the wire rod) of the screw members 40C and 40D.
Note that in the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and different components are mainly described.
In the first embodiment, the screw member 40 in which the screw members 40A and 40B are connected by welding has been described. In contrast, in the second embodiment, screw members 40C and 40D are used instead of the screw members 40 and 40B.

  In 2nd Embodiment, the screw member 40 connects two types of screw members 40C and 40D by welding. The upper part of the screw member 40 is the screw member 40C, and the lower part is the screw member 40D. The surface of the screw member 40 is provided with a large number of fine depressions by blasting.

  In order to reduce the frictional resistance received from the game medium or the like when the game medium is lifted and polished, the streamlined type is preferable as shown in the first embodiment. However, the streamlined cross section is a factor that increases costs. In order to reduce the frictional resistance while suppressing an increase in the frictional resistance, the cross section of the screw member 40 may be rectangular and the corners may be chamfered.

As shown in FIG. 14, the screw members 40C and 40D have a rectangular cross-sectional shape.
In this screw member 40C, the cross-sectional shape is as follows.
W = 13, T = 6
In the screw member 40D, the cross-sectional shape is as follows.
W = 10, T = 4
Here, W is the plate width and T is the plate thickness.

In any of these cross-sectional shapes, the corner portion 44 is chamfered with a radius R1.
Radius R1 should just be 0.5 mm or more and T / 2 or less.
In the second embodiment, the radius R1 is 2 mm to 3 mm.
In the second embodiment, since the corner portion 44 is chamfered, the abrasive material is less likely to bite into the gap between the corner portion 44 and the inner wall of the cylindrical body 30, and the abrasive material and the screw member 40. It is possible to reduce the frictional force generated between the two.
In the above embodiment, it is possible to reduce the number of cleaning operations of the abrasive material by polishing the game medium using the abrasive material moistened with water, thereby making it difficult for the dirt component to adhere to the abrasive material. Although a lifted polishing apparatus is shown, the screw member 40 according to the present invention is also effective in an existing lifted polishing apparatus that polishes a game medium using an abrasive that is not moistened with water. For example, when the abrasive is replaced immediately (especially when the abrasive is new), the frictional resistance that the screw member 40 receives from the abrasive is large, a large load is applied to the screw member 40, and the motor is locked. May end up. Even in such a case, since the screw member 40 according to the present invention has a cross-sectional shape that reduces the frictional resistance from the abrasive, it is possible to prevent the motor from being locked.

DESCRIPTION OF SYMBOLS 1 Game machine island 2 Main body 3 Island tank 4 Base 5 Support | pillar 6 Motor 7 Out ball collection basket 8 Out ball throwing bowl 10 Lifting polishing apparatus 11 Humidification means 12 Humidity sensor 13 Control means 20 Water supply means 25 Water amount adjustment means 30 Cylindrical body 31 Discharge port 400 Transfer means 40 Screw member 40A Screw member 40B Screw member 41 Curved surface 42 Apex 43 Tip 44 Corner portion 50 Separating means 51 Saddle child 52 Sorting means 53 Separation path 54 Abrasive material stock 55 Collecting hose 60 Return path

Claims (2)

In the lifting and polishing apparatus used in the gaming machine island where a plurality of gaming machines are arranged,
Water supply means for moistening the abrasive with water;
A cylinder erected on the gaming machine island;
The screw member having a screw member disposed inside the cylinder, wherein the game medium used in each of the gaming machines and the wet abrasive material are mixed in the cylinder. The transfer means for discharging the game medium, the abrasive, and the dirt component including the dirt separated from the game medium from the upper part of the cylindrical body by transferring upward by
Separation means for separating the discharged game media, the abrasive, and the dirt component, respectively.
A return path for guiding the abrasive from the separating means to the transfer means via the water supply means;
Have
The screw member may have a roughened surface,
The water feeding and polishing apparatus according to claim 1, wherein the water supply means is provided at a position corresponding to a starting end portion of a transfer path of the game medium, in the vicinity of the maintenance inspection opening in the screw member . The water supply means wets the abrasive in a moving state,
2. The lift polishing apparatus according to claim 1, wherein the transfer means polishes the game medium with a wet abrasive.

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