JP6215377B2 - Medal polishing machine - Google Patents

Description

  The present invention uses a rotating brush to clean and polish the surface of a 1.6 mm thick medal or coin medal used in a gaming machine, and separates and separates dust, dirt, and fine pieces adhering to the surface. The present invention also relates to a medal polishing apparatus that removes these by suctioning them with a negative pressure.

  As a medal polishing device, rotating brushes are placed opposite to each other above and below the medal transport path, and the elastic brush bristles of each rotating brush are brought into contact with the upper and lower surfaces of the medals, so It is widely used as a medal polishing device that peels off dust, dirt, and fine pieces adhering to the surface by rubbing against the tip of the brush bristle by bending and the elasticity of the bristles, and separating and recovering them. ing. This prior art is shown in Patent Document 1.

  The medal used in the gaming machine has a thickness of about 1.6 mm, and characters / symbols of a store name mark are engraved on the upper and lower surfaces thereof. The coins are also engraved with letters, symbols and figures on the surface.

  The surface of the medal has fine irregularities in the letters, symbols, and figures, and hand sweat, dirt, dust, and fine pieces adhere to it, making cleaning difficult. In addition, there is a problem that dust, dirt, and fine pieces adhering to the brush hair remain attached to the brush hair, making it difficult to separate from the brush hair and suck and suck.

  With this rotating brush polisher, if the brush bristles are short, the projections on the surface of the tokens can be polished well, but the bottom surface of the recesses, especially the dust at the corners of the recesses, dirt, dirt, and fine pieces are removed by the brush bristles.・ Insufficient scraping. In addition, when the bristle was long, the tip of the bristle lay along the medal surface, and the cleaning inside the recess was incomplete.

  Furthermore, a technique is also known in which dust, dirt, and fine pieces separated / separated by the rotating brush are sucked by a negative pressure suction device and captured by a filter to be removed. Yes.

JP 2011-67257 A Japanese Patent Laid-Open No. 11-207016

  The problem to be solved by the present invention is to scrape dust, dirt, and fine pieces adhering to the fine irregularities on the surface of medals that are insufficiently polished by conventional rotating brush bristles with brush bristles to ensure peeling. The aim is to increase the cleaning and polishing power of medals with a rotating brush. In addition, the dust, dirt, and fine pieces adhering to the brush bristles are peeled off from the bristles and removed to ensure suction and capture. It is to hold.

The configuration of the present invention that solves this problem is as follows.
1) A pair or a plurality of pairs of opposed rotary brushes that clean the surface of the medals by contacting the top or bottom surface of the medals conveyed along the conveyance path of the medals or coins In addition, medals that are close to each other so that their rotation trajectories overlap each other at a required depth when there are no medals at the tip of the rotating brush and that contact the rotation direction of each rotating brush are sent in the transport direction. In this way, the medal polishing apparatus includes rotating means for rotating in opposite directions and a suction device that sucks dust, dirt, or fine pieces separated and separated from the surface of the medal with a rotating brush under a negative pressure. In
The depth δ of the overlapping portion of the rotation trajectory of the rotating brush on the line connecting the rotation centers of the opposing rotating brushes is set to 2.0 to 5.0 mm , and is provided along the conveyance path for medals. A pair of medal guides for restricting medals from being deviated from the conveying direction are provided at the opposed sending side position of the rotating brush, and there are a plurality of opposed rotating brushes along the conveying path. Projected from the front end toward the front so as to be inserted into the rotation trajectory of the bristles of the front rotary brush along the front end perpendicular to the transport direction of the transport path of the medal guide provided between the pairs of rotary brushes A plurality of front protrusions are provided at predetermined intervals, and the rear protrusion protrudes rearward from the rear end so as to be inserted into the rotation trajectory of the brush bristles of the rear rotary brush along the rear end of the medal guide. Are provided at predetermined intervals, and the front protrusions and rear protrusions of the front and rear ends of the medal guide are in contact with the brush bristles of the front and rear rotary brushes to scrape off dust, dirt or fine pieces adhering to the brush bristles and brush The medal polishing apparatus 2 is characterized in that the hair is vibrated to enhance separation / separation of dust / dirt or fine fragments. 2) Depth δ of the overlapping portion of the rotation trajectory at the tip of the rotating brush is 3.0. The medal polishing apparatus according to 1), which is set to ˜4.0 mm. 3) The medal polishing apparatus according to any one of 1) or 2), wherein the front protrusion and the rear protrusion are triangular. 4) One or more pairs of a pair of opposed rotating brushes that clean the surface of the medals by contacting the upper or lower surface of the medals conveyed along the medal or coin medals transport path The rotating bra When there are no medals at the tip of the chin, the rotation trajectories are close to each other at the required depth, and the medals that contact the rotation direction of each rotary brush are sent in the opposite directions so that they are sent in the transport direction. In a medal polishing apparatus, comprising: a rotating means for rotating the suction member; and a suction device for sucking dust / dirt or fine pieces separated / separated from the surface of the medal with a rotating brush under a negative pressure.
The depth δ of the overlapping portion of the rotation trajectory of the rotating brush on the line connecting the rotation centers of the opposing rotating brushes is set to 2.0 to 5.0 mm, and is located at the most downstream side of the transport path of medals. A pair of opposed discharge chutes for guiding the discharge direction of medals provided on the delivery side of the opposed rotary brush are provided, and from the chute front end of the discharge chute to the rotation trajectory of the brush bristle tip of the most downstream rotary brush characterized in that said portion of the front end so as to insert provided with a plurality of extending portions which were drawn at predetermined intervals, the polishing apparatus 5 of Medal acids) depth of the overlapping portion of the rotation locus of the tip of the rotary brush δ It was a 3.0 to 4.0 mm, the 4) medal such polishing apparatus 6) medals such a delivery-side position of the rotary brush faces provided along the conveying path of medals such as described the carrying Road transport direction And a pair of medal guide for regulating the out-of al, the 4) or 5) There are several sets of rotary brushes along the conveying path of polishing apparatus 7) facing Medals acids according, of the rotating brush facing pairs A forward projecting portion projecting forward from the front end so as to be inserted into the rotation locus of the bristle of the forward rotating brush along the front end perpendicular to the transport direction of the transport path of the medal guide provided between A plurality of rear projecting portions projecting rearward from the rear end so as to be inserted into the rotation locus of the brush hair of the rear rotating brush along the rear end of the medal guide at a predetermined interval. Therefore, the front protrusions and the rear protrusions at the front and rear ends of the medal guide are in contact with the brush bristles of the front and rear rotating brushes, scraping off dust, dirt or fine pieces adhering to the bristles and vibrating the brush bristles. Giving Wherein the enhanced separation and peeling of dust, dirt or fines, the 6) the shape of the polishing device 8) the front projection and rear projection of medals acids according is triangular, said 7) The medal polishing apparatus 9) The rear ends of the pair of medal guide plates provided in the transport path in front of the first pair of rotary brushes on the upstream side of the transport path are connected to the brush bristles of the facing rotary brush. The medal polishing apparatus according to any one of 1) to 8), wherein extending portions extending so as to be inserted into the rotation locus by a predetermined length are provided at a required pitch in the rotation axis direction of the rotating brush .

  According to the present invention, the depth δ of the overlapping portion of the rotation trajectory of the bristles of the rotating brush facing each other is set to 2.0 to 5.0 mm, so that the tip of the bristles is a recess in the surface of the tokens. Hit the bottom and corners of the recess, and scrape the dirt, dust, and fine pieces at the corners of the recess and corners by conveying the medals, rotating the bristles, and the elasticity of the bristles. Therefore, the evaluation of the dirt removal on the surface of the medals is very high, and the evaluation of the removal of the dirt is considerably higher than the case where the depth δ of the overlapping portion is lower than the above range. When the height δ exceeds 5.0 mm, the tip of the bristle will follow along the surface and the tip of the bristle will not hit the surface convexity, concave bottom, corner of the concave. , Dirt removal ability is reduced. In the present invention, by setting the depth δ to 2.0 to 5.0 mm, dirt can be removed well.

  This depth of dirt removal is most optimal when the depth δ is 3.0 to 4.0 mm, and the evaluation is from “substantially removed” to “mostly removed dirt”. Further, it was the next preferred range that δ was 2.0 to 4.0 mm.

  In addition, by providing a pair of medal guides that restrict medals from being removed from the conveying direction at the sending position of the rotating brush, the medals that are polished and sent out by the opposing rotating brush are separated from the conveying direction and face upward. The pair of medal guides facing each other so as to sandwich the conveyance path is regulated so as to prevent it from deviating from the conveyance path so that it can smoothly pass between the rotating brushes facing the medals. .

  Further, by providing the medal guide or the discharge chute with a forward projecting portion, a rear projecting portion or an extending portion so as to be inserted into the rotation trajectory of the tip of the bristles of the rotating brush, the projecting portion and the extending portion are connected to the rotating brush. Is inserted in the rotation trajectory of the brush, contacts with the rotating brush, forcibly separates and separates dust, dirt, and fine particles adhering to the brush hair of the rotating brush from the brush hair, and sucks with negative pressure suction force This prevents dust, dirt, and fine pieces adhering to the brush hair from reattaching to the medals or remaining attached to the brush hair, thereby reducing the cleaning power of the rotating brush.

When the rotating brush bristles come into contact with the surface of the medals (usually metal) and the brush bristles rub against the surface of the medals, static electricity is generated, and the dust, dirt, and fine pieces that have peeled off are reattached to the bristles and medals. However, it was difficult to suck these by air suction, and the removal of dust and the like was obstructed.
In the present invention, an apparatus having an anion emission device that emits anions toward a rotating brush performs neutralization of ions (static electricity) on dust, dirt, and fine pieces adhering to the brush hair by ionic force. The separation from the brush bristles can be made good, thus ensuring their suction and capture.

  In the structure where the tip of the bristles of the rotating brush is in contact with the grindstone plate, the tips of the bristles of the rotating brush can be sharpened. Increased peel strength. Further, it is preferable because these dusts attached to the tip of the brush hair can be peeled off.

FIG. 1 is an explanatory diagram of the overall structure of the first embodiment. FIG. 2 is an exploded perspective view of the first embodiment. FIG. 3 is an explanatory diagram illustrating a rotating means of the rotating brush according to the first embodiment. FIG. 4 is an explanatory view showing a medal polishing state of the first embodiment. FIG. 5 is a side view of the rotating brush according to the first embodiment. FIG. 6 is a front view of the rotating brush according to the first embodiment. FIG. 7 is an explanatory diagram illustrating the overlapping of the tip ends of the bristles of the rotating brush according to the first embodiment. FIG. 8 is an explanatory view showing a state of medal polishing by the brush bristles of the rotating brush according to the first embodiment. FIG. 9 is an explanatory diagram of the structure of the medal dirt inspection instrument used in Example 1. FIG. FIG. 10 is an explanatory diagram showing dirt on the dirt inspection body and its evaluation by the medal dirt inspection instrument in Example 1. FIG. 11 is an explanatory diagram of the overall structure of the second embodiment. FIG. 12 is an explanatory view showing the arrangement of the medal guide and the discharge chute according to the second embodiment and the state in which the medal guide and the discharge brush are inserted into the rotation locus. FIG. 13 is an enlarged perspective view showing the shape of the medal guide and the discharge chute according to the second embodiment. FIG. 14 is an enlarged cross-sectional view showing the medal guide and the protruding portion and the extending portion of the discharge chute according to the second embodiment. FIG. 15 is an explanatory view showing the arrangement of the medal guide and the discharge chute facing the lower rotating brush of the second embodiment. FIG. 16 is a perspective view showing another embodiment of the medal guide plate / medal guide and the protruding portion / extending portion of the discharge chute according to the second embodiment. FIG. 17 is a structural explanatory view showing the overall structure of Example 3 using a grindstone plate. FIG. 18 is an explanatory view showing the elastic support structure of the grindstone plate of Example 3. FIG. 19 is an explanatory view showing the brush polishing state of the third embodiment. FIG. 20 is an explanatory diagram of the medal polishing state of the third embodiment. FIG. 21 is an explanatory view showing the overall structure of Example 4 in which an air supply fan is attached to the ion emission device. FIG. 22 is an exploded perspective view of the fourth embodiment. FIG. 23 is an explanatory diagram showing an operation state of the fourth embodiment.

  Further, in the present invention, the form having the opposing medal guides as shown in claims 2 to 8, the form in which the medal guide and the discharge chute are provided with front and rear protrusions or extending parts, the form in which the anion emission device is provided, Furthermore, the form of the structure in which the air supply fan is added to them can add a combination of the above-mentioned form structures to the invention described in claim 1 of the present invention, and the polishing effect of the invention can be further enhanced.

Hereinafter, as an embodiment of the present invention, the embodiment 1 shown in FIGS. 1 to 10, the embodiment 2 shown in FIGS. 11 to 16, the embodiment 3 shown in FIGS. 17 to 20, and the embodiments shown in FIGS. 4 will be described with reference to the drawings.
Each of the embodiments is a polishing apparatus for a medal having a diameter of 25 mm and a thickness of about 1.6 mm used in an amusement shop, and the surface (upper surface, lower surface) of the medal has a store name, a figure, a symbol, and a mark indicating the store name. It is imprinted, and minute irregularities of 1 mm or less are formed.

  A first embodiment shown in FIGS. 1 to 10 is an embodiment of the invention of claims 1, 2 and 3 and the invention of claim 9 quoting this, which is a basic embodiment of the present invention, and is a protrusion / extension portion. This is an example with an anion release device that has an up and down medal guide and an up and down discharge chute and discharges anion particles charged with negative (negative) ions in fine particle water. The depth δ of the overlapping portion of the rotating brushes facing each other is 2.0 to 4.0 mm, and as a comparison, the depth of the overlapping portion of the rotating brush is less than 2.0 mm and exceeds 4.0 mm. This is an example in which a rotating brush is prepared and a comparative test of the influence of the dimension of the depth δ of removing dirt is performed. The inspection of the dirt on the medal after polishing is an example in which the inspection instrument shown in FIG. 9 is used and the dirt on the dirt inspection body as shown in FIG. 10 is visually evaluated.

  In Embodiment 2 shown in FIGS. 11 to 16, each medal guide facing in Embodiment 1 is provided with a triangular front and rear protrusion, and an extending portion is provided at the front end of the facing discharge chute. FIG. 16 shows an embodiment of the invention of claim 6 in which 5 is cited, and FIG. 16 shows an example in which the protruding portion is attached to the medal guide plate in Example 2 and the pitch between the protruding portion and the extending portion is different. Is shown.

  In Embodiment 3 shown in FIGS. 17 to 20, the grindstone plate that sharpens the tip of the bristles of the rotating brush in Example 1 is elastically supported so that the tip of the bristles contacts each rotating brush. is there.

  In Example 4 shown in FIGS. 21 to 23, the anions released in the vicinity of the anion emission device in Example 1 are forcibly fed in the direction of the rotating brush by the air flow of the blower fan to ensure neutralization by ions. This is an example in which a blower fan is provided above the rotating brush in order to make it easier to send dust, dirt, and fine pieces in the lower suction direction.

  In addition, this invention is not restricted to the example combination structure of Examples 1-4, In addition, it includes also the various combination of the characteristic structure of Claims 2-9.

Hereinafter, reference numerals in the drawings of Examples 1 to 4 will be described.
G ₁ is a medal polishing apparatus according to the _first embodiment, G ₂ is a medal polishing apparatus according to the _second embodiment, G ₃ is a medal polishing apparatus according to the _third embodiment, and G ₄ is a medal polishing apparatus according to the _fourth embodiment. Indicates the device. m is a medal, δ is the depth of the overlapping portion of the brush bristles (4 ₁ , 4 ₂ ) and brush bristles (4 ₃ , 4 ₄ ) of the opposed rotating brushes (2 ₁ , 2 ₂ ), (2 ₃ , 2 ₄ ) Indicates the length of the length.
In the figure, 1 is a transport path for medals m, 2 ₁ , 2 ₂ , 2 ₃ and 2 ₄ are rotating brushes having an outer diameter of 38 mm facing each other up and down, and 3 ₁ , 3 ₂ , 3 ₃ and 3 ₄ are each rotated. brush _{2 1,} 2 _2, 2 3, _{2 4} of the rotary _shaft, 4 _1, 4 _2, 4 3, _{4 4} each rotary brush _{2 1,} 2 _2, 2 3, _{2 4} of nylon bristles _{5 1} , _{5 2} oppositely disposed medal _guide, 5 _{11, 5 12} medal guide _{5 1} of the front, _rear, 5 _{21, 5 22} medal guide _{5 2} of the front, _rear, 6 _{11, 6 12} forward projecting portion is projected from the front end _{5 11} or the rear end _{5 12} of the same medal guide _{5 1} about 3 mm, the rear _protrusion 6 _{21, 6 22} to protrude from the medal guide _{5 2} of the front _{5 21} or rear end _{5 22} forward projection portions, the rear projecting _portion, 7 1, _{7 2} is provided behind the rotating brush ₂ 3, _{2 4} Vertically opposite the discharge chute _was, 7 _{11, 7 21} discharge chute ₇₁ at the front end, the front end of the discharge chute _{7 2, 8 1} rotating brush ₂ 2 from the discharge chute ₇₁ of the front end _{7 11, 2 3} bristles extending portion which extends into the rotational locus within 8 ₂ is stretched portion is stretched to insert the rotary brush 2 ₄ bristles of the rotating the locus from the discharge chute 7 ₂ of the front end 7 _21.

_Moreover, 91 to 93 ₈ is a structural part of the rotary brush 21 _{to 24} of the rotating _mechanism, 9 _1, 9 _2, 9 3, _{9 4} each rotary shaft _{3 1,} 3 _{2, 3} 3, 3 ₄ , the upper and lower interlocking gears (9 ₁ , 9 ₂ ) and (9 ₃ , 9 ₄ ) mesh with each other. 9 ₅ , 9 ₆ are timing belt gears attached to the rotating shafts 3 ₂ , 3 ₄ , 9 ₇ is a motor for rotating the rotating brushes 2 ₁ , 2 ₂ , 2 ₃ , 2 ₄ , and 9 ₈ is the motor timing belt gear which is axially mounted on the output shaft, 9 ₉ is a timing belt for transmission to interlock the gear 9 _5, 9 _6, 9 _8. Upper casing 10 to form the abrasive part with the rotating brush, 10 ₁ vent slit provided in the ceiling portion of the upper casing, the lower casing 11 to form the abrasive part with the rotation brush, 12 suction device, 12 ₁ suction port formed in a bottom surface of the lower casing 11 of the suction device, 12 _second suction pipe connected to the suction port 12 _1, 12 air blower ₃ for generating a negative pressure which is provided in the middle of the suction pipe 12 _2, 12 ₄ is a filter bag to capture dust, dirt, fines provided inside the suction pipe 12 ₂ of the previous air supply fan 12 _3, an exhaust pipe that emits connected to the suction pipe 12 ₂ air atmosphere 13, 14 anion emission device that emits anions negative charge water particles are charged, 14 ₁ the ion concentration and anions are produced in the same negative ion emitting device (negative charge amount value) Rotating Anion generator unit can be adjusted depending on the charge amount of static electricity of shea, 14 ₂ ion emission tubes, which emit the negative ions generated by the anion generator 14 ₁ to the upper casing 10, 20 is primarily a medal m horizontal rotary primary polishing section for cleaning and polishing, the 21 same following polishing portion of the rotating disk, 21 ₁ rotating brush portion of the annular flocked perpendicular bristles annularly on the outer periphery of the rotating disk 21, 21 ₂ A circular central portion of the turntable 21, 22 is a rotation shaft of the turntable 21, 23 is a belt wheel attached to a lower portion of the rotation shaft 22, 24 is a motor for rotating the turntable 21, and 25 is an output shaft of the motor. axially mounted the pulleys, the transmission belt 26 to the transmission belt wheel 23, 25, the primary polishing section of the casing 27, 27 ₁ inlet medal m to drop from above, 27 ₂ rotation of the annular brush portion 21 medal m on the ₁ Discharge port for discharging to the conveying path 1, 27 ₃ medal guide plate for restricting the upper and lower discharge ports 27 _2, 27 ₄ in triangular shape toward the rotating brush ₂ 1, _{2 2} from the front end of the medal guide plates 27 ₃ stretched stretching section, 28 is a fixed annular brush portion flocked bristles downward part of the annular brush portion 21 ₁ of the upper casing of the rotating disk 21.

30 rotary brush _{2 1,} 2 _2, 2 3, _{2 4} of bristles _{4 1,} 4 _2, 4 3, ₄ grinding plate for ₄ tip sharpened, 30 ₁ grindstone layer of the contact surfaces, 30 ₂ retractable shaft supporting the grinding plate, 30 ₃ spring for urging the grinding wheel plate 30 in the direction of the rotary brush 30 ₄ attached fixing plate of the grinding plate 30, 40 near the upper casing of the anion discharge pipe 14 ₂ 10 is an air supply fan that guides negative ions provided in the direction of the rotating brush. 50 inspection instrument of dirt, 51 lower frame of the inspection tool 50, the upper frame 52 which is hinged to the lower frame, 52 ₁ hinged portion of the upper frame 52 and lower frame 51, 52 ₂ upper frame 52 is an open / close lock band capable of locking the closed state of the lower frame 51 and the lower frame 51. 53 15 mm × 50 mm × 6 mm dirt inspected elongated made sponge, contamination inspection body fixing pieces restrained against movement by the same stain test bodies 54, 54 ₂ restraint piece 55 on the upper surface of the dirt inspected A rubber rotation pressurizing unit 56 that presses and rotates the polished medal m, 56 is a medal rotation operating shaft that is rotatably supported on the upper frame 52, and 57 is the same. A handle 58 attached to the head of the medal rotation operation shaft 56 is a spring that urges the rotation pressurizing portion downward.

(Structure of Example 1)
A first embodiment shown in FIGS. 1 to 10 is a basic structure of the present invention, and is between two pairs of upper and lower opposed rotating brushes 2 ₁ and 2 ₂ and opposed rotating brushes 2 ₃ and 2 ₄ . The medal guides 5 ₁ and 5 ₂ that are horizontally opposed to each other so as to sandwich the conveyance path 1 and the discharge chutes 7 ₁ and 7 ₂ that are vertically opposed are provided, and the rotary brushes (2 ₁ , 2 ₂ ), (2 ₃ ) that are vertically opposed to each other. changes 0,1.0,2.0,3.0,4.0Mm, the length of the bristles _{41 to 4} above 4.0mm the length of the overlapping portion of the rotary brush δ _{2 4)} Therefore, the influence of the length δ on the polishing force can be tested. The medal guides 5 ₁ and 5 ₂ and the discharge chutes 7 ₁ and 7 _{2 according} to the first embodiment do not have the front projecting portion 6 ₁₁ , the rear projecting portion, and the extending portions 8 ₁ and 8 ₂ . Further, the anions generated by the anion generator 14 ₁ from above the polishing space of the lower casing 11 and the upper casing 10 surrounding the rotating brushes 2 ₁ , 2 ₂ , 2 ₃ , 2 _4, and the lower rotating brush 2 ₁ , It emits in the direction of 2 ₂ , 2 ₃ , 2 ₄ .

Rotation of the rotary brush 21 _{to 24} sends a timing belt _{9 9} actuates the motor _{9 7} rotates the gear ₉ 5, _{9 6,} the lower that pivotally attached to the rotary shaft ₃ 2, _{3 4} the interlocking gear ₉ 2, _{9 4} rotates, the interlocking gear ₉ 1, _{9 3} upper meshing with the interlocking gear by rotating, to rotate the rotary shaft ₃ 1 to 3 _4, in the rotary shaft The rotating brushes 2 ₁ to 2 ₄ that are attached to the shaft are rotated in the opposite direction to each other in the direction in which the medal m is sent.

Further, before the polishing by rotating the brush ₂₁ to ₂₄ mentioned above faces in Example 1 was charged with spent medals m to a horizontal turntable 21, a rotating brush portion 21 ₁ of the upper and lower surfaces of the outer peripheral portion fixed annular The brush part 28 performs primary polishing of the medal m.

(Operation of Example 1)
Medals m dirty in use, is dropped is fed into inlet 27 ₁ of the horizontal rotary primary polishing section 20 to the circular central portion 21 ₂ on the turntable 21. Medals m that have fallen into the central portion 21 ₂ receives a centrifugal force due to high speed rotation of the rotating disk 21, and moves while rotating in the outer circumferential direction of the rotating disk 21, a rotary brush unit 21 ₁ and the upper stationary annular brush portion 28 Between the upper and lower brush tips, and from the rotational force, centrifugal force and the resistance of the upper and lower brush hairs, spirally move to the outer peripheral direction, reach the outer peripheral frame of the rotating disk, and follow the outer peripheral frame moves guided by the medal guide plate 27 ₃ of the upper and lower faces from the discharge port 27 ₂ to the conveying path 1 by rotating Te. Medals m by the brush bristles between the rotating brush portion 21 ₁ and the stationary annular brush portion 28 of the medal m is cleaned and polished, it will be sent to the conveying path 1 from the discharge port 27 ₂ are made and polished primary cleaning .

The medal m sent to the transport path 1 is sent along the transport path 1 in the middle of the overlapping portion of the brush bristles 4 ₁ and 4 ₂ of the upper and lower rotating brushes 2 ₁ and 2 ₂ (see FIG. 7). Tip of the bristles 4 ₁ of the rotary brush 2 ₁ to the upper surface of the medal m is contacted in a state of and slightly Shiwa' was as plugging (see Figure 8). Such bristles 4 ₁ rotating in a state performs polishing and cleaning the surface of medals m moving at the required speed along the conveying path 1. The tip of the brush bristles pierces the melodic m flat surface and the corners of the medal m, and scrapes dust, dirt, and fine pieces adhering to them with its rotational force, elastic force, or medal movement speed. Scatter outside. The back surface (lower surface) Similarly medals back surface by the rotary brush 2 ₂ lower medal m cleaned and polished by the brush bristles 4 _2. Further, the medal m is sent out in the transport direction in the left direction in the figure by the rotational force and brush frictional force of the brush bristles 4 ₁ and 4 ₂ of the rotary brushes 2 ₁ and 2 ₂ .

Rotary brush 2 _1, 2 also ₂ medals m passing through the by when the movement direction upward or downward is Henra is generated in the force from the rotary brush 2 _1, 2 _2, a pair of upper and lower medal guide 5 _1, 5 ₂ jump out upward medal m from the conveying path 1 by, or regulated to become dropping direction downward, to send medals m along the transport path 1.

If is regulated by these medal guide 5 _1, 5 ₂ are sent to the conveying direction, are fed to the next set of rotary brush 2 _3, 2 ₄ of bristles 4 _3, 4 ₄ intermediate position, the similarly same The front surface (upper surface) and the rear surface (lower surface) of the medal m are cleaned and polished by the brush bristles 4 ₃ and 4 ₄ . When the second set of rotating brushes 2 ₃ and 2 ₄ are cleaned and polished, they are regulated by the discharge chutes 7 ₁ and 7 ₂ and discharged.

The friction between the brush bristles made of nylon of these rotating brushes (2 ₁ , 2 ₂ ) and (2 ₃ , 2 ₄ ) and the bristles 4 ₁ , 4 ₂ , 4 ₃ , 4 ₄ and the metal medal m Although static electricity by friction is likely to occur, negative ions generated in the anion generator of the present the anion emission device 14 are emitted toward the rotary brush ₂₁ to ₂₄ and medals m from the ion discharge pipe 14 ₂ Thus, the static electricity generated in the brush hairs 4 ₁ to 4 ₄ and the medal m is neutralized by anion, and dust, dirt, fine pieces, and powder adhere to the brush hairs 4 ₁ to 4 ₄ and the medal m due to static electricity. Suppresses staying and reattaching, and encourages dust, dirt, fine pieces, and powder to fly into the air, and to peel off from brush hair and medals m. As a result, the suction device 12 can reliably perform suction and removal.

Thus, peeled and separated the rotary brush 21 _{to 24} in dust, dirt, fines, powders adhered to the bottom surface of the corner-recessed portion of the surface-irregularities Medals m such by the brush bristles 4 _{1-4 4,} Disperse into the air.
Then, the suction device 12 is operated in the state. Air blower 12 ₃ by generating a negative pressure in the suction port through the suction pipe 12 _2, sucks the dust, dirt, fines, powders that are scattered in the air together with air into the suction port 12 _1, the suction pipe 12 feed through _2, if Re most captured by the filter bags 12 ₄ savings was drained each bag, and so as to release only the cleaned air.

Note that the ceiling surface of the upper casing 10 have provided ventilation slits 10 _1, minutes for discharging the sucked in air from the suction port 12 _1, have introduced indoor air from the ventilation slits 10 _1. Anion air flow from the ventilation slits 10 ₁ is moved to the rotary brush 21 _{to 24,} it is to ensure neutralization of static electricity.

The test of the influence of the cleaning / polishing force due to the length δ of the overlapping portion of the opposing rotating brush bristles will be described. The length δ of the overlapping portion of the brush bristles with the rotating brushes (2 ₁ , 2 ₂ ) and (2 ₃ , 2 ₄ ) of Example 1 is set to 0.0, 1.0, 2.0, 3.0, 4 The setting was changed to 0.0 mm, and the dirt condition of the medal m polished through the discharge chutes 7 ₁ and 7 ₂ was inspected and evaluated. Polish 10 used medals m with the same soiling with the same length δ of 0.0, 1.0, 2.0, 3.0, 4.0 mm. Used for inspection with the inspection instrument 50 for wiping level evaluation. Ten polished medals m each having a length of δ are placed on a sponge-like small elongated rectangular parallelepiped dirt inspection body 53, and the medal m is rotated to rub dirt adhered to the medal m against the dirt inspection body 53. In addition, the level of dirt of the dirt inspection object 53 at five types of δ length was visually evaluated to evaluate the level at which the medal m was cleaned and polished. As for the evaluation level, a five-step visual evaluation was performed as shown in Table 1 below.

(Description of dirt inspection equipment)
As an instrument for inspecting the adhesion state of dust, dirt and fine pieces remaining on the surface of the medal after polishing the medal, the inspection instrument 50 shown in FIGS. 9 and 10 and the dirt adhering to the surface of the medal are wiped off from the medal surface. A sponge dirt inspection body 53 is used to test the remaining dirt on the medal based on the degree of dirt wiped off. FIG. 10 shows the evaluation levels 1 to 5 and the degree of contamination of the contamination inspection body 53 for wiping level evaluation.

Inspection tool 50 is opened and closed the upper frame 52 at the hinged portion 52 ₁ at one end of the metal of the lower frame 51 in a compact device as shown in FIG. 9, in the closed state closing rock band 52 ₂ which can lock it It can be held.
The lower frame 51 is provided with a dirt inspection body fixing piece 54 that restrains the sludge inspection body 53 made of an elongated sponge so as not to move from side to side and from front to back. Also has a restraining piece 54 ₂ in the left and right horizontally rotatably held without sliding the medals left to check put on the center of the upper surface of the dirt inspected 53.
Further, a medal rotation operation shaft 56 is provided at the center of the upper frame 52 so as to pass through the surface of the upper frame 52 at a right angle, and at the lower end of the medal rotation operation shaft 56, a rubber rotation pressing portion 55 is provided. Is fixed, and a spring 58 is provided between the rotation pressure unit 55 and the ceiling surface of the upper frame 52. Further, a handle 57 for rotating the medal rotation operation shaft 56 is attached to the upper end of the medal rotation operation shaft 56. In addition, there is a pair of dirt inspection body pressing pieces (not shown) suspended from the lower surface of the upper frame 52.

(About dirt inspection methods using dirt inspection equipment)
First, a new 15 mm × 50 mm × 6 mm thick sponge test object 53 made of sponge is set inside the test object fixing piece 54 at the center of the lower frame 51. Put a medal m of dirt testing on a set soils inspected 53 stop lateral movement with restraint piece 54 _2. In this way, held in a state where the upper frame 52 closed closed by opening and closing the lock band 52 _2. Left and right opposite to restrain the dirt inspected fixing piece 54 provided in the restraining piece ₅₄₂ back and forth in this state, the front and rear sponge dirt inspected dirt inspected pressing piece which is vertically from the upper frame 52 (not shown) The dirt inspection body 53 is prevented from moving by pressing left and right. Then, the medal to be inspected is placed on this.

  Next, when the handle 57 is rotated so that the handle 57 at the head of the medal rotation operation shaft 56 is pushed down by hand and the medal m is pressed against the dirt inspection object 53, the rubber rotation pressurizing unit 55 is moved to the medal m. Is pressed against the dirt inspection body 53, and by rotating it, the dirt on the lower surface of the rotating medal m is transferred to the dirt inspection body 53 and the surface of the dirt inspection body 53 is soiled. The medal is rotated by rotating the handle 57 a predetermined number of times. This is repeated with ten medals m polished at the same length δ, and the dirt of the medal m after polishing is transferred to the dirt inspection body 53, and the final dirt state of the dirt inspection body 53 is visually observed. Thus, the polishing performance of the medal polishing apparatus of the present invention was confirmed.

In the present invention, by adjusting the dirty medals m same degree of rotary brush 21 _{to 24} bristles overlap length δ at 1.0mm units 0.0～4.0Mm, length of each δ The ten polished medals m were stained on the dirt inspection body 53 with the dirt inspection instrument 50 and compared visually to determine the relationship between the length δ and dirt removal. As shown in Table 1, the dirt was divided into levels 1 to 5 and visually evaluated, and the level was evaluated by a plurality of visual inspectors, and the degree of dirt was evaluated based on the average value.

  With the medal polishing apparatus of Example 1 above, the evaluation of the contamination with respect to the length δ of the overlapping portion of the brush bristles was as shown in Table 2 below.

Thus, the length of the overlapping portion of Example 1, the rotary brush ₂ 1 to 2 ₄ [delta] (lapping) is a level 3 "there degree dirt is removed" in 2.0~4.0mm From the evaluation of Level 1, it is an evaluation of Level 2 that “substantially dirt is removed”, which is close to the evaluation of Level 1 that is “substantially dirt is removed”. Therefore, δ can be estimated to be a level equivalent to 2.0 mm, which is estimated to be better than level 3, and it was determined that the removal of dirt was good. In particular, when the length of δ is 3.0 to 4.0 mm, it is about level 2 which is close to level 1, indicating that the removal of dirt was excellent.

(Example 2)
Example shown in FIG. 11 to 16 2, the rotary brush ₂ 1 faces the front end _{5 11} and a rear end _{5 12} of opposed upper and lower pair of the medal guide ₅ 1, _{5 2} In Example 1, _{2 2} , ₂ 3, _{2 4} towards protrudes forward protrusion _{6 11} and the rear protrusion _{6 12} triangular. Its forward and backward of the protrusion _{6 11, 6 12} length t of the overhang is from the front end _{5 11,} the rear end _{5 12} about 3 mm. Further, a pair of upper and lower discharge chute ₇ 1, _{7 2} in triangular extending portion extending a length t is 3mm also ₈ 1, _{8 2} rotating brushes ₂ 3, _{2 4} discharge chute ₇ 1 towards, 7 _This is an example of extending from the front ends 7 ₁₁ and 7 ₂₁ of No. ₂ . Other structures are the same as those of the first embodiment.

Thus was extended from Example 2, the medal guide ₅ 1, _{5 2} of 3mm of the front projecting portion _{6 11,} the rear protrusion _{6 12} and discharge chute _{71, 7 2} of the front end _{7 11, 7 21} about 3mm extending portion _{81, 82} the rotary brush _{2 1,} 2 _2, 2 3, _{2 4} of bristles _{4 1,} 4 _2, 4 3, ₄ are inserted into the _fourth rotary in locus (see Fig. 12, 14 ).
In Example 2, the tip of the bristles ₄₁ to ₄ medal guide ₅ 1, _{5 2} of the front-rear extending portion _{6 11,} 6 _12, 6 _{21, 6 22} or elongated portions _{81, 82} contact To do.
Thus, the tip of the bristles _{41 to 4} in contact with these forward and backward extending portion _{6 11,} 6 _12, 6 _{21, 6 22} or elongated portions _{81, 82,} bristles ₄ 1 4 ₄ of the distal end portion thereof projecting portion ₆ 11 dust, dirt, fines adhering _to, 6 _12, 6 _{21, 6 22} and extending portion _{81, 82} forcibly peeled in the bristle ₄ 1-4 Separate from ₄ .

Further, the brush bristles _{41 to 4} forward and backward protrusion ₆ 11 in which the _triangular, 6 _12, 6 _{21, 6 22} or by extending portion _{81, 82} rotation shaft of the rotary brush 21 _{to 24} by ₂ The brush hairs 4 ₁ to 4 ₄ are vibrated in the axial direction by dividing the brush bristles in the axial direction of 3 _{1 to} 3 ₄ , thereby shaking dust, dirt, and fine pieces adhering to the brush hairs 4 ₁ to 4 ₄ to air Separate and release. Further, the brush bristles 4 ₁ to ₄ 4 that vibrate in the axial direction give an axial polishing force to the surface of the medal m. Not only before and after the rotation direction but also the axial direction perpendicular to this is scraped and plucked out, so that separation and release of dust into the air is effective. Incidentally, dust or the like separated and released into the air are eliminated is sucked together with air by the same way the suction apparatus 12 of Example 1 to the suction port 12 _1.

FIG. 16 shows another example of the second embodiment. In the example of FIG. 16, the extending portion 27 ₄ projecting in a triangular shape is also inserted into the rotary brush 2 _1, 2 ₂ of the rotating the locus upstream rear end of the medal guide plates 27 ₃ at the top pair pairs Provided. Furthermore, the pitch spacing of the medal guide plate 27 _third extending portion 27 ₄ and the discharge chute _{71, 7 2} of the triangular extending portion _{81, 82} along the longitudinal direction is short. Medal guide ₅ 1, _{5 2} front protrusion ₆ 11 _{projecting, 6 21,} the pitch interval along the longitudinal direction of the rear projecting portion _{6 12, 6 22} is longer, extending portion _{81, 82,} It is about 2 times the pitch spacing of 27 ₄ ones.

In the example of FIG. 16, in addition to the effect of the structure of the embodiment 2 of FIG. 12 to 15, bristles ₄ 1 of the rotary brush ₂ 1, _{2 2, 4 2} and the extending portion 27 ₄ of the medal guide plates 27 ₃ contact with the brush bristles _41, 42 attached ₂ separate away off the dust, dirt, particulates piece or the like are also bristles 4 by contact with the brush bristles 4 _1, 4 ₂ and extending portion 27 _{4 1} and 4 ₂ is vibrated to increase the effect of separating and releasing the deposits such as dust and the like, effectively collecting the dust and reducing reattachment.

Furthermore, shorter medal guide plate 27 ₃ of the triangular extension portion 27 ₄ and the discharge chute _{71, 7} triangular extending portion ₈₁ of the _{2, 8 2} pitch in the example of FIG. 16, the medal guide in the middle 5 _{1, 5 2} forward and backward of the triangular protrusions _{6 11,} 6 _12, 6 _{21, 6} pitch of ₂₂ long, the extension part _{27 4,} 8 1, _{8 2} 2 times the length pitch since there are (interval), the rotary brush _{2 1,} 2 _2, 2 3, _{2 4} of the extending portion ₈₁ of the bristles _{41 to 4,} 8 2, 27 ₄ and the contact position between the projecting portion ₆ 11, 6 _{12, 6 21,} the contact position between 6 ₂₂ are different, contact without thoroughly without biased brush bristles of the rotary brush, yet vibration of different frequency to the rotation axis direction of the brush bristles of the rotary brush is generated Will be fluctuated and stretched with the above bristles 8 _{1, 8} 2, and is 27 ₄ and the projection _{6 11,} 6 _12, 6 _21, further enhance such a peeling and separating effects by contact with _{6 22.}

(Example 3)
Embodiment shown in 17-20 Example 3, Example 1 rotary brush 21 _{to 24} bristle _{41 to 4} at the tip is contacted with grinding layer of the grinding plate 30 bristles ₄ 1-4 ₄ in The tip of the blade is sharpened so that it can be pierced into the irregularities on the surface of the fine medals, and the scraping force of dust and the like can be effectively scraped off. The grinding plate 30 that is biased by a spring 30 ₃ to rotary brush 21 _{to 24} direction, and ensures the brush tip grinding by the grinding wheel, maintaining a high polishing power of the brush bristles ₄₁ to ₄ It is an example that can.
This structure can also be applied to the second embodiment of the first embodiment.

Example 4
Example shown in FIG. 21 to 23 4, although using same anion release device 14 as in Example 1, the negative ions emitted from the ion discharge pipe 14 ₂ of Example 4, anion emission device 14 send forced to rotary brush 21 _{to 24} by the air flow is generated by two air fans mounted on the upper casing 10, ensures the feed with the anion to the bristles ₄₁ to ₄ and medals m In addition, the bristle 4 ₁ to 4 ₄ and the medal m are completely neutralized, and static electricity generated by friction is reliably neutralized, and dust, dirt, and fine pieces adhere to the brush bristle / medal m surface due to static electricity. suppresses strongly, with dust or the like to facilitate release, airborne, induces dust to the suction port 12 ₁ in the air flow of the air fan 40 and dust, ensures suction-elimination of dust This is an example.

Note that the medal guide ₅ 1, _{5 2} forward and backward protrusion ₆ 11 Example _1, the _{6 12} and discharge chute ₇₁ of Example 4, _{7 2,} extending portion ₈₁ on the medal guide plate 27 _3, 8 _2, 27 ₄ are not, but the medal guide ₅ 1, _{5 2} and the discharge chute ₇₁ as in example 2, _{7 2,} medal guide plate 27 ₃ forward and backward extending portion _{6 11, 6 12,} extension part 8 _{1, 8} 2, 27 ₄ may be provided. And the combination which makes the grindstone of Example 3 contact the front-end | tip part of rotating brush hair is also effective.

  Although the present invention has been described mainly with medals used in amusement stores, it can also be used for polishing and cleaning coins used in vending machines and coins used in ticket purchase machines used for transportation. .

G ₁ , G ₂ , G ₃ , G ₄ Polishing device for medals of Examples 1, ₂ , ₃ and ₄ m Medal δ Length of rotating brush overlapping portion t Length of front / rear protruding portion or extending portion 1 Carriage path 2 ₁ , 2 ₂ , 2 ₃ , 2 ₄ Rotating brush 3 ₁ , 3 ₂ , 3 ₃ , 3 ₄ Rotating shaft 4 ₁ , 4 ₂ , 4 ₃ , 4 ₄ Brush bristles 5 ₁ , 5 ₂ Medal guide 5 ₁₁ front 5 ₁₂ rear 6 _{11, 6 21} forward protruded portion 6 _{12, 6 22} rearward projection portions 7 _{1, 7 2} discharge chute 7 _{11, 7 21} front end _{81, 82} extension part 9 _{1, 9 2, 9} 3, 9 ₄ interlocking gear 9 ₅ , 9 ₆ gear 9 ₇ motor 9 ₈ gear 9 ₉ timing belt 10 upper casing 10 ₁ ventilation slit 11 lower casing 12 suction device 12 ₁ suction port 12 ₂ suction pipe 12 ₃ air supply fan 12 ₄ filter bag 13 Exhaust pipe 14 Anion releasing device 14 ₁ Anion generating unit 14 ₂ Ion releasing tube 20 Horizontal rotation type primary polishing unit 21 Rotating disk 21 ₁ rotating brush unit 21 ₂ Central portion 22 Rotating shaft 23, 25 Belt wheel 24 Motor 26 Transmission belt 27 Casing 27 DESCRIPTION OF SYMBOLS ₁ Input port 27 ₂ Discharge port 27 ₃ Medal guide plate 27 ₄ Extending part 28 Fixed annular brush part 30 Grinding wheel board 30 ₁ Grinding wheel layer 30 ₂ Retreating shaft 30 ₃ Spring 30 ₄ Mounting fixing plate 40 Air supply fan 50 Inspection tool 51 Lower frame 52 Upper frame 52 ₁ Hinge for attaching the upper frame 52 to the lower frame 51 52 ₂ Opening / closing lock band 53 Dirt inspection body 54 Dirt inspection body fixing piece 54 ₂ Restraining piece 55 Rotating pressure unit 56 Medal rotating operation shaft 57 Handle 58 Spring

Claims (9)

One or a plurality of pairs of opposed rotating brushes that clean the surface of the medals by contacting the top or bottom surface of the medals to be transported are arranged along a medal or coin medals transport path. At the same time, the medals that are close to each other so that their rotation trajectories overlap each other at a required depth when there are no medals at the tip of the rotating brush, and are in contact with the rotation direction of each rotating brush are sent in the transport direction. In a medal polishing apparatus comprising rotating means that rotate in opposite directions and a suction device that sucks dust, dirt, or fine pieces separated or separated from the surface of the medal with a rotating brush under a negative pressure. ,
The depth δ of the overlapping portion of the rotation trajectory of the rotating brush on the line connecting the rotation centers of the opposing rotating brushes is set to 2.0 to 5.0 mm , and is provided along the conveyance path for medals. A pair of medal guides for restricting medals from being deviated from the conveying direction are provided at the opposed sending side position of the rotating brush, and there are a plurality of opposed rotating brushes along the conveying path. Projected from the front end toward the front so as to be inserted into the rotation trajectory of the bristles of the front rotary brush along the front end perpendicular to the transport direction of the transport path of the medal guide provided between the pairs of rotary brushes A plurality of front protrusions are provided at predetermined intervals, and the rear protrusion protrudes rearward from the rear end so as to be inserted into the rotation trajectory of the brush bristles of the rear rotary brush along the rear end of the medal guide. Are provided at predetermined intervals, and the front protrusions and rear protrusions of the front and rear ends of the medal guide are in contact with the brush bristles of the front and rear rotary brushes to scrape off dust, dirt or fine pieces adhering to the brush bristles and brush An apparatus for polishing medals, characterized in that vibrations are imparted to the hair to improve separation / peeling of dust / dirt or fine fragments .   The medal polishing apparatus according to claim 1, wherein the depth δ of the overlapping portion of the rotation locus of the tip of the rotating brush is set to 3.0 to 4.0 mm. Wherein the shape of the front projection and rear projection portion is triangular, the polishing device of the token acids according to any one of claims 1 or 2. One or a plurality of pairs of opposed rotating brushes that clean the surface of the medals by contacting the top or bottom surface of the medals to be transported are arranged along a medal or coin medals transport path. At the same time, the medals that are close to each other so that their rotation trajectories overlap each other at a required depth when there are no medals at the tip of the rotating brush, and are in contact with the rotation direction of each rotating brush are sent in the transport direction. In a medal polishing apparatus comprising rotating means that rotate in opposite directions and a suction device that sucks dust, dirt, or fine pieces separated or separated from the surface of the medal with a rotating brush under a negative pressure. ,
The depth δ of the overlapping portion of the rotation trajectory of the rotating brush on the line connecting the rotation centers of the opposing rotating brushes is set to 2.0 to 5.0 mm, and is located at the most downstream side of the transport path of medals. A pair of opposed discharge chutes for guiding the discharge direction of medals provided on the delivery side of the opposed rotary brush are provided, and from the chute front end of the discharge chute to the rotation trajectory of the brush bristle tip of the most downstream rotary brush characterized in that said portion of the front end so as to insert provided with a plurality of extending portions which were drawn at predetermined intervals, the polishing apparatus of medals acids. The medal polishing apparatus according to claim 4, wherein the depth δ of the overlapping portion of the rotation locus of the tip of the rotating brush is set to 3.0 to 4.0 mm . And a pair of medal guide for regulating the out-of-the transport direction of the transport path of the medal such a delivery-side position of the rotary brush faces provided along the conveying path of the medal class, according to claim 4 or 5 The medal polishing device described. There are a plurality of opposed rotating brushes along the conveying path, and the brush bristles of the rotating brush on the front along the front end perpendicular to the conveying direction of the conveying path of the medal guide provided between the opposed rotating brush groups. A plurality of front protrusions protruding from the front end toward the front so as to be inserted into the rotation trajectory are provided at a predetermined interval, and in the rotation trajectory of the brush bristles of the rear rotary brush along the rear end of the medal guide. A plurality of rear projecting portions projecting rearward from the rear end so as to be inserted are provided at predetermined intervals, and the front projecting portion and the rear projecting portion of the front and rear ends of the medal guide are in contact with the brush bristles of the front and rear rotating brushes. The medal according to claim 6 , wherein dust, dirt or fine pieces adhering to the brush bristles are scraped off and vibrations are applied to the brush bristles to enhance separation / peeling of the dust, dirt or fine pieces . Polishing equipment The medal polishing apparatus according to claim 7 , wherein the front protrusion and the rear protrusion have a triangular shape . The rear ends of the pair of medal guide plates provided in the transport path ahead of the first pair of rotary brushes on the upstream side of the transport path are inserted into the rotation trajectory of the brush bristles of the facing rotary brush by a predetermined length. The medal polishing apparatus according to any one of claims 1 to 8, wherein the extending portions thus extended are provided at a required pitch in the rotation axis direction of the rotary brush .

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