JP6134031B1 - Medal polishing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surface of a medal such that the brush bristles of the rotating brush are used for a long time and the tip is rounded in a device for cleaning and polishing the medal by passing medals such as medals and coins between opposing rotating brushes. It is intended to prevent the cleaning power and scraping power performance of dust, dirt, and fine pieces of dust on the uneven surface of the surface from being lowered. A lightweight brush bristle edge recovery brush grindstone plate 8 having a grindstone layer 81 on the lower surface is placed on the rotating brush 2 above the two pairs of vertically facing rotating brushes 2 and 3; Two vertical brush grindstone plates having a reverse-shaped rocking limit stopper 94 provided on a mounting base 93 attached to the lower part of the lower rotating brush 3 and having a bristle edge recovery grindstone layer 91 on the stopper. 9 is inserted to make it swingable in the front-rear direction. A weight 92 for urging the rotary brush 3 is attached to the vertical brush grindstone plate 9 to the vertical brush grindstone plate 9, and dusts are aired below the rotary brushes 2 and 3. At the same time, a peeled material collecting device 7 for suctioning and removing is provided. [Selection] Figure 1

Description

  In the present invention, the surface and the back surface of small items such as medals / coins or small metal plates (hereinafter referred to as medals), dirt / adhered dust / particles or broken pieces of brush hairs (hereinafter, referred to as medals), etc. The present invention relates to a polishing apparatus for medals that removes and removes trash) with a brush of a rotating brush.

  A medal polishing device that cleans and polishes medals by peeling and removing debris on the front and back of medals with brush bristles rotating by passing medals between the bristles of rotating brushes facing each other It is known in documents 1 and 2.

  When the tip of the bristles of the rotating brush is repeatedly contacted with the medal and the tip of the bristles is rounded as shown in FIG. 9 (b), dust, dirt, There was a problem that the peeling force of the granular material was lowered, and the cleaning and polishing force as an apparatus was weakened. Further, even if dirt or dust adhered to the edge of the bristle tip and could not be separated, the peeling force by the bristle was reduced.

JP 2011-019589 A JP 2011-067257 A

  The problem to be solved by the present invention is that the tip of the bristles of the rotary brush for cleaning and polishing is rounded by wear due to repeated contact with the surface of small items such as medals, and the peeling force is reduced. A medal polishing device using a rotating brush that prevents the peeling force from decreasing due to dirt and dust adhering to the edge of the bristles, and does not decrease the cleaning and polishing force by the rotating brush even after long use. It is to provide.

The configuration of the present invention that solves this problem is as follows.
1) A plurality of pairs of opposed upper and lower rotating brushes that clean the surface of the medals by contacting the upper surface or the lower surface of the medals to be transported are arranged in a line along the medal or coin medals transport path. And a medal polishing apparatus comprising rotating means for rotating the rotating brushes in opposite directions so as to send the medals contacting the rotating direction of the upper and lower rotating brushes in the conveying direction.
A lightweight brush grindstone plate with a grindstone layer on the lower surface is placed on the upper rotating brush so that it is supported at the upper end position of the rotation locus of the tip of each bristle rotating brush. A limiting member that restricts movement of the grinding wheel plate in the conveying direction is provided, and a vertical brush grinding stone plate that can swing toward the rotating brush near the lower rotating brush and has a grinding stone layer on the surface facing the rotating brush is provided. An urging means for urging the vertical brush grindstone plate toward the opposite lower rotating brush is provided, and further discharged by polishing the medals with the rotating brush and polishing the bristle with the brush grindstone plate or the vertical brush grindstone plate. 2) Medal polishing apparatus equipped with discharging means for discharging dust, dirt or fine pieces from the outer peripheral space of the rotating brush. 2) In front of the rotating brush on the conveyance path of medals in the section where there is a pair of upper and lower rotating brushes A medal guide is installed at the top and bottom of the transport path to prevent medals from tilting in the vertical direction and jumping out of the transport path on the rear transport path. The medal polishing apparatus according to 1), which extends to a position where it enters the inside 3) A plurality of protrusions are provided at a predetermined pitch along the rotational axis direction of the rotating brush at the tip of the medal guide. The medal polishing apparatus according to 2), wherein the medal guide is formed in a comb-teeth shape. 4) A protrusion provided at the tip of the medal guide provided so as to enter the rotation locus of the tip of the bristles of the same rotating brush. By changing the pitch dimensions of the front and rear medal guides of the same rotating brush, by changing the shape of the protrusions of the front and rear medal guides, or by changing the shape of the front and rear medal guides. The shape and pitch of the protruding part of the brush is the same, but the pitch of the pitch of the rotating brush changes the contact state between the front and rear medal guide tips and the protruding part, and the brush bristles vibrate. 3) The medal polishing device 5) according to the above 3), in which dust, dirt, and fine pieces adhering to the brush hair are effectively peeled off and easily released into the air. The medal polishing apparatus 6 according to any one of 1) to 4) above, which is an elastic buffer member that holds the front and rear ends of the brush grindstone plate attached to the wall of the rotating brush chamber to which the rotating brush is attached. The polishing of the medals according to any one of 1) to 5) above, wherein the urging means of the vertical whetstone plate protrudes a weight in the direction of the rotating brush in the middle of the vertical whetstone plate and the gravity of the weight is used as the urging force. Device 7) Turning the tip of the bristles of a pair of upper and lower rotating brushes The medal polishing device 8) according to any one of 1) to 6) above, wherein the rolling trajectories intersect and overlap each other at the position of the conveyance path, and the exclusion means sucks the air in the space where the rotating brush is accommodated It is a suction-type peeled material recovery device that sucks and removes dust, dirt, or fine pieces released into the air with the rotating brush together with air, and further applies atmospheric air to the ceiling surface of the casing and the brush grindstone plate that stores the rotating brush. The medal polishing apparatus according to any one of the above 1) to 7) provided with an opening for taking in the dust 9) The dust removing means guides the falling objects of dust, dirt, and fine pieces with a chute below the rotating brush. The medicinal polishing apparatus 10 according to any one of 1) to 7) above, in which a waste collection container for receiving and storing fallen objects is provided below the medal type according to any one of 1) to 9). Meda in polishing equipment On the upstream side of the above-mentioned conveyance path, brush bristles are planted upward in the outer peripheral area of the upper surface of the rotating disk, and the brush hairs fixed thereon are implanted downward, above the central area on the upper surface of the rotating disk. A slot for used medals is provided, and the central area on the top of the rotating disk is used as a receiving surface for the medals inserted from the slot, and the dropped medals are received at the central area of the rotating disk and below the rotating disk. The conveying path is moved primarily between the upper and lower brush bristles by moving them in the direction between the side bristles and the fixed upper bristles with the centrifugal force of rotation of the rotating disk. A rotary disk type primary cleaning device having a structure for feeding out to the medals is sent to the conveying path of the medal polishing apparatus, and the medals are primarily cleaned by the rotary disk type primary cleaning device. Medal polishing machine that performs secondary cleaning and polishing 11) Medal game A medal to be used in the gaming machine, is in the 1) to 10) Polishing apparatus Medals acids according any.

According to the present invention, the tip ends of the bristles of the upper and lower rotating brushes rotating opposite to each other are brought into contact with the brush grindstone plate or the vertical brush grindstone plate, and the tips of the bristles are ground on the surface of the brush grindstone plate. The tip of the bristle can be polished by applying it to the layer and the tip of the bristle tip can be used in a restored state at all times. It can be effectively scraped and eliminated without any problem. The edge of the bristles of the bristles is always sharpened so that the round ends of the bristles of FIG. 9 (b) make edges as shown in FIG. 9 (c). The edge of the bristle is scraped off with the edge of the brush, and the edge of the brush bristle is always sharpened with the grinding stone layer to clean the rotating brush. Make the polishing power high and maintain for a long time.
In addition, even if a strong force / vibration load is applied from the rotating brush, the brush grindstone plate / longitudinal brush grindstone plate can operate stably without breaking by escaping upward or in the front-rear direction.

  Further, in the present invention, the brush grindstone plate for reshaping the tip of the bristles of the upper rotating brush is lightweight and only rides on the upper end of the rotating brush. The brush bristles move in a circular motion while being bent upward and come into contact with the grindstone layer of the brush grindstone plate to effectively sharpen the bristles of the bristles and restore the edges of the bristles. Moreover, the brush grindstone plate is in a floating state on a large number of brush bristles above the rotating bristles and is loosely supported without strong vibration or force due to the elastic force of the bristles. This makes it possible to polish the tip of the brush bristle stably. The movement of the brush grindstone plate in the conveying direction from the rotating brush is restricted by a restricting member to enable a stable operation.

  When the limiting member of the brush stone plate is an elastic buffer member that holds the front and rear end portions of the brush stone plate, the brush stone plate does not directly contact the side wall of the casing, and the casing is moved forward and backward by the brush stone plate. This is preferable because it reduces collision noise and impact vibration with the side wall and cushions vertical vibration to reduce deformation and wear due to repeated stress of the bristles of the rotating brush.

  Furthermore, the lower vertical brush grindstone plate also balances the urging force in the direction of the rotating brush with the elastic force due to the deformation of the brush hair of the lower rotating brush, and the brush rotating force. Effectively sharpen the bristles of the lower rotating brush with the layer to restore the edge of the brush bristles.

  In particular, the polishing of the bristle with the above-mentioned brush grindstone plate / vertical brush grindstone plate is not only in the rotation direction but also in the rotation axis direction because the brush bristles of the rotary brush have a comb-teeth shape at the tip of the medal guide. By shaking the brush bristles, the tip of the bristles can be sharpened from various directions with a brush grindstone plate / vertical brush grindstone plate, and the brush bristles can be polished uniformly and satisfactorily.

Furthermore, the medal guides on the upper and lower sides regulate the medals in the transport direction by preventing the medals from deviating from the transport direction even when an upward or downward force is applied by the rotating brush. In addition, if the protrusion at the tip of the medal guide has a comb-teeth shape, the bristles come into contact with the comb-teeth tip edge / projection and remove the dust attached to the brush hair. It can be peeled away and released well into the air. In addition, the brush bristles move the bristles in various directions with the comb-like protrusions at the tip of the medal guide, and the movement of the bristles also has the effect of shaking off the dust attached to the bristles. , Increasing the separation power.
In particular, a protrusion is provided at the tip of the medal guide at a predetermined pitch to form a comb-tooth shape, and the pitch dimension in the rotation axis direction of the protrusion of the medal guide before and after entering the rotation trajectory of the same rotating brush is different. If you use the one that changes the shape of the protrusion, or the one that has a different phase of the protrusion, use a medal guide to distribute the brush bristles of the rotating brush in the direction of the axis of rotation. The contact position between the brush and the medal guide changes, and the brush bristles are swung in the direction of the rotation axis, so that the dust and dirt attached to the bristles can be effectively and uniformly separated. Also, the debris peeled off by the swing motion of the brush hair in the rotation axis direction can be shaken and released well into the air.

  Further, if a primary cleaning device that performs primary cleaning / polishing with a horizontal rotating disk as in the first and second embodiments is placed before the medals according to the present invention are polished, the medals can be polished to a very high degree.

  In addition, as shown in FIG. 8, when the bristles of the upper and lower rotating brushes intersect and overlap in the medal conveyance path, the length of the bristles is excessive compared to the case where the bristles of the bristles are in direct contact with the surface of the medal. The length of the brush bristles bends and touches the surface of the medal, and the brush bristles are slanted or curved so that they are inserted into the corners of the unevenness. It will increase the scraping power of dust, dirt, and fine pieces in the corner of the wall.

Figure 1 is an explanatory diagram showing the entire structure of a polishing apparatus G ₁ medal class of Example 1 of the present invention. FIG. 2 is an exploded perspective view illustrating the rotary disk type primary cleaning device 10 according to the first embodiment. FIG. 3 is an explanatory diagram illustrating a driving mechanism of the rotating brush according to the first embodiment. FIG. 4 is a cross-sectional view illustrating the main structure of the first embodiment. FIG. 5 is an exploded perspective view showing the arrangement of the brush grindstone plate and the vertical brush grindstone plate according to the first embodiment. FIG. 6 is a side view illustrating the rotating brush according to the first embodiment. FIG. 7 is a front view illustrating the rotating brush according to the first embodiment. FIG. 8 is an explanatory diagram illustrating a polishing state of the bristles of the rotating brush according to the first embodiment. FIGS. 9A, 9 </ b> B, and 9 </ b> C are explanatory views showing the tip state of the bristles of Example 1. FIG. FIG. 10 is a perspective view showing a main part structure of the bristle grinding of the bristle according to the first embodiment. FIG. 11 is an explanatory diagram illustrating the arrangement of medal guides according to the first embodiment. FIG. 12 is a perspective view showing a comb-like shape of the protruding portion of the front end portion of the front, middle and rear medal guides according to the first embodiment. FIG. 13 is an explanatory diagram illustrating a movement state of medals according to the first embodiment. FIG. 14 is an explanatory diagram showing Example 2 of an example of the removing means by the garbage dropping method. FIG. 15 is an explanatory view showing various examples of the structure of the brush grindstone plate of the present invention, a restricting member that regulates the front and rear movement width, and support of the front and rear ends of the brush grindstone plate. FIG. 16 is an explanatory view showing a planar shape example of the brush grindstone plate of the present invention. FIG. 17 is an explanatory view showing a support structure example of the vertical brush grindstone plate of the present invention.

  As the grindstone material of the grindstone layer formed on the surface of the brush grindstone plate / longitudinal brush grindstone plate of the present invention, grindstone materials used for sandpaper, file, ceramic polishing cloth, grindstone and the like can be used. In addition to the adhesion of the grindstone material, it is also possible to provide a fine asperity on the plate material to which the grindstone layer is attached to form a grindstone layer.

  Further, the length of the bristles of the rotating brush is preferably the length of the bristles that causes the bristles to come into contact with the surfaces of the medals as shown in FIG. With this length, the tip of the bristles pierce the rugged corners of the medals, scraping off the deposits, and the elastic force generated by the bending of the bristles creates a force to repel. In order to produce this length, it is necessary to make the length of the upper and lower rotating brushes overlap so that the bristles intersect each other.

  The pair of opposed rotating brushes is typically a rotating brush arrangement in which the medal transport path faces in the vertical direction in the horizontal direction, but the medal transport path may be vertical and inclined. Rotating brushes facing left and right in the horizontal direction may be used, or the facing direction may be inclined.

  Moreover, as a waste discharging means, a suction type vacuum cleaner (a type in which dust is stored in a filter bag and a type in which dust is captured by a cyclone and collected in a small chamber) can be employed. The air suction port sucks debris such as dust, particles, debris, brush shavings, etc. scattered and floating with the air between the opposing rotating brushes and the surrounding air, and stores them in the filter bag or in the cyclone chamber. If a large amount is contained, it is better to discharge from the filter bag / compartment. For this reason, it is preferable to provide openings for air intake and air movement on the ceiling surface of the casing for storing the rotating brush and the brush grindstone plate.

FIG. 15 shows various patterns of supporting the brush grinding stone plate and attaching the restricting member in the front-rear direction and the buffering elastic body. Limiting members 15 and rotary brush side walls for accommodating the rotary brush, (a) shows the type adhered cushioning elastic body 8 ₄ on the inner surface of the restriction member, (b) an L-shaped attached to a rotating brush sidewalls A type that is placed on a support member to prevent downward fall and downward tilt, and (c) is a type that loosely supports the front and rear ends of a brush grindstone plate with a C-shaped holding elastic body attached to a rotating brush side wall. is there. Then, the brush grinding plate (a) ~ (c) have an opening ₈₂ is provided for air flow, (d) ~ (f) is the numerical aperture is not type. No opening is suitable for the type that drops and collects garbage by its own weight. As these types, appropriate types should be adopted according to the means for removing dusts and the vibration and force from the bristles of the rotating brush.

  FIG. 16 shows the planar shapes of the type (a) having an opening and the type (b) having no opening of the brush grindstone plate of the present invention.

Figure 17 is a vertical brush grinding plate is swingably supported structure example of the present invention, (a) is in the L-shaped support member, the mounting base 9 ₃ vertical brush grinding plate 9 supports, vertical brush grinding plate 9 are provided swing limit stop 9 ₄ reversed V-shape so as to limit in swinging a little angle in favor of the bottom. (B) is a type of holding the front and rear ends of the mounting base 9 ₃ C-shaped elastic body 8 _41. Further, the structure for swinging the vertical brush grindstone plate of the present invention toward the rotating brush is not limited to that shown in FIG. 17, and the grindstone layer is pivotally supported at the middle or lower end of the brush grindstone plate to face the rotating brush. A structure may be provided in which a spring or a weight for biasing the brush grindstone plate toward the rotating brush is provided.

Example 1
Hereinafter, the polishing apparatus G ₁ medal class of Example 1 of the present invention has a turntable type primary cleaning device 10 as the primary cleaning, polishing unit G ₀ due to the rotation brush of the present invention is provided as a secondary cleaning This is an example. Hereinafter, Example 1 will be described with reference to the drawings. Example 1 shown in FIG. 1-13 arranged along the rotary brush 2 of the upper and lower face the conveying path 1 of two pairs medals, suction type scrapings collected using a filter bag 7 ₆ as removing means for waste acids the device 7 is provided, and the brush grinding plate 8 of the brush polishing intended to put the upper end of the rotating brush 2 before and after, polishing the bristles of the brush bristles 2 ₃ of the rotary brush 2 with the grinding stone layer 8 _1.
Further, the vertical brush grinding plate 9 of the brush polishing under the rotating brush 3, the rotary brush chamber wall 8 ₃ swing limit stop 9 ₄ of the supported horizontal mounting base 9 ₃ below the center of the reverse V-shape of the the inserted lower end portion, and a vertical brush grinding plate 9 by weight 9 ₂ provided on the way to urge toward the rotary brush 3 contacts the grinding wheel layer 9 ₁ and brush hairs 3 ₃ of the rotary brush 3 brushes and polishing the tip of the hair 3 _3.
At the same time, dust, dirt and debris adhering to the brush bristles are separated from the brush bristles and scattered in the air as exfoliation. The scattered scrapings sucks captured from the air suction port ₇₁ of the stripping substance collecting device 7 using the air suction type, it is housed in the filter bag 7 ₆ inside the recovery device 7 ₂ via an air passage 7 _4. Then, as the primary cleaning device 10 of the medal m, and flocked strip bristles 12 that vegetation peripheral region of the known horizontal rotary disc 11 the upper surface, the bristles of the brush bristles 14 and vegetation on the lower surface of the fixed frame 13 ₂ The medal m is cleaned and polished between the upper and lower brush bristles 12 and 14 when the medal m passes between the belts by the centrifugal force generated by the rotating force of the turntable 11. it is an example to feed along the transport path 1 of the medal between the rotating brush 2 of the upper and lower faces of the polishing unit G ₀ due to the rotation brush of the present invention.

In the medal polishing apparatus G2 of the _second embodiment shown in FIG. 14, the dust removal means guides the falling of the garbage with the chute 31 instead of the air suction-type peeled material collecting apparatus 7 of the first embodiment. It is received and stored in the lower garbage collection container 30. Others are the same as the structure and effect of Example 1.

(Explanation of symbols in the first embodiment)
G ₀ is a polishing unit using a rotating brush as a main part of the present invention in Example 1, G ₁ is a medal polishing apparatus of Example 1, 1 is a medal conveyance path, and 2 and 3 are vertically opposed rotating brushes, 2 ₁ and 3 ₁ are cylindrical rolls on which the rotary brushes 2 and 3 are flocked, 2 ₂ and 3 ₂ are rotation shafts of the rotary brushes 2 and 3, 2 ₃ and 3 ₃ are on the outer peripheral surface of the cylindrical rolls 2 ₁ and 3 ₁ A large number of brush bristles, 2 ₄ , 3 ₄ , which have a fixed width and have a spiral width, are spur gears with rotating shafts 2 ₂ , 3 ₂ , and mesh with each other to rotate. The shafts 2 ₂ and 3 ₂ are rotated in opposite directions. 2 ₅ pivotally groove sheave to the output shaft of the motor 5, 3 ₅ cars axially mounted to the rotating shaft 3 ₂ belt, the transmission belt for transmitting the power of the motor 5 to the belt wheel 3 ₅ 4, 5 A motor 6 for rotating the rotating brushes 2 and 3 is a discharge chute portion of the conveyance path 1. Further, 2 ₃₁ and 3 ₃₁ are edges of the brush bristles 2 ₃ and 3 ₃ , 2 ₃₂ and 3 ₃₂ are dust and dirt adhering to the edges, and 2 ₃₃ and ₃₃ are roundness of the edges.

Further, 7 is a peeling product recovery system air suction type, 7 ₁ air suction port provided at a position in the rotary brush 2, 7 ₂ Exfoliate containment filter bag was sucked into the air suction port 7 _6, the recovery unit main body is omitted because it is same as the structure of the vacuum cleaner having a fan 7 _5, 7 ₃ outlet 7 ₄ air passage for communicating the air suction port ₇₁ and the collecting device main body 7 ₂ , 7 ₅ fans the air pressure of the air duct 7 ₄ a negative pressure, 7 ₆ is a common filter bag stripping was collected, detailed drawings are omitted.

8 is a plate-shaped brush polishing body, a brush grinding plate in thickness 0.7 mm × length 178 mm × width 100mm material is stainless steel weighing about 55 g, _{8 1} on the lower surface of the brush grinding plate 8 grindstone layer formed by attaching a sandpaper, 8 ₂ of the air passage opening, 8 ₃ rotating brush chamber wall a restriction member, 8 ₄ rotating brush chamber wall 8 ₃ to buffer the front and rear ends of the brush grinding plate 8 mounting the elastic body, 8 ₄₁ retaining the resilient member of the C-shaped, 8 ₅ is the opening for air intake provided in the ceiling wall of the rotating brush chamber wall 8 _3.

Further, reference numeral 9 is a vertical brush grinding plate polishing body of rotary brush 3 below, 9 ₁ grindstone layer using sandpaper attached to opposing surfaces of the rotating brush 3 in the vertical brush grinding plate 9, 9 ₂ weight provided so as to protrude in the direction of the rotating brush 3 which faces the middle of the vertical brush grinding plate 9, 9 ₃ is mounted at a lower position of the rotating brush chamber wall 8 ₃ supporting a vertical brush grinding plate 9 horizontal mounting base has, 9 ₃₀ openings also a suction passage of the air flow and dust such provided in the mounting base 9 _3, 9 ₄ swingably vertical brush grinding plate 9 provided at the center of the mounting base 9 ₃ This is a reverse-shaped rocking limit stopper attached to the head.

Further, in the figure, reference numeral 20 denotes a pair of upper and lower medal guides arranged in parallel with the transport path 1 with a predetermined distance above and below the rotary brushes 2 and 3 of the transport path 1, and the medal m is directed upward or downward. It is intended to be transported horizontally so as not to tilt. Reference numeral 21 denotes a tip portion that enters the rotation trajectory of the tip of the bristles of the rotating brushes 2 and 3 of the medal guide 20, and 22 denotes a substantially triangular protruding portion that protrudes from the tip portion 21. The pitch and the length of the protrusion are different from those of the protrusion 22 of the medal guide 20 before and after having entered 3.
14 of FIG. 14 in the drawing of the second embodiment is a garbage collection container for receiving and storing falling garbage, and 31 is a chute for guiding the falling garbage to the garbage collection container 30.

In the figure, 10 is the rotating disk type primary cleaning device of the first stage, 11 its rotary disc 11 ₁ medal receiving surface of the central region of the rotating disk 11, 11 ₂ rotation axis of the rotating disk 11, 12 lower bristles of annular flocked upward in the outer peripheral region of the upper surface of the rotating disk 11, 13 device casing 13 ₁ inlet medal m, 13 ₂ are in the outer peripheral region of the upper surface of the rotating disk 11 fixed frame vegetation toward an upper brush bristles downward, 13 ₃ annular casing portion to keep the rotary disc 11, 14 the upper bristles are vegetation downward to the lower surface of the fixed frame, 15 of the rotating disk 11 motor for rotating the rotary shaft 11 _2, 15 ₁ transmission belt 16 is medal outlet for feeding medal m part of annular casing portion 13 ₃ of the apparatus casing 13 to the opening to the transport path 1.

(Operation of Example 1)
In Example 1, medals m that was used to introduce random from inlet 13 ₁ of the rotating disk type primary cleaning device 10. Inserted medals m is received by the medal receiving surface 11 ₁ of the central region of the rotating disk 11. Rotary disc 11 medal receiving surface 11 ₁ and medal m placed in the peripheral region of the rotating disk 11 have rotated at a high speed by a motor 15 acting centrifugal force due to rotation, medals m in the radial direction (helical trajectory in with it) are accelerated, is bound to also the inner surface of the annular casing 13 ₃ passes through between the lower side brush bristles 12 and the fixed frame 13 and _second upper bristles 14 of the rotary disc 11, the brush bristles 12, 14 is brushed and temporarily cleaned, and medals are sent out from the medal delivery port 16 to the transport path 1 at an appropriate timing.
By this rotary disk type primary cleaning device 10, the medal m is primarily cleaned considerably.

Medals m fed to the transport path 1 is sent to the polishing unit G ₀ due to the rotation brush of the main part of the present invention. Here, the pair of upper and lower rotary brushes 2 and 3 are rotated.
The rotation of the rotating brushes 2 and 3 is shown in FIG. And transmission of the sheave 2 ₅ attached to the output shaft of the motor 5 and the belt pulley ₃₅ mounted on the rotary shaft 3 and _second rotary brushes 2 and 3 the transmission belt 4, the upper and lower rotary brushes 2 and 3 that the cylindrical roll 2 _{1, 3 1} of the rotary shaft ₂ 2, _{3 2} spur gears ₂ 4 pivotally attached to, _{3 4} meshing pair of upper and lower rotating brushes 2 and 3 are mutually rotated in opposite directions.

The medal m sent into the transport path 1 passes through the transport path 1 between the brush bristles 2 ₃ and 3 ₃ of the rotating brushes 2 and 3 facing each other in the upper and lower directions, and the medal m is moved by the upper and lower brush bristles 2 ₃ and 3 ₃ . The tip of the brush hair is pierced to the corners of the irregularities on the front and back surfaces, and the remaining dust, dirt, and particles that have not been removed by the primary cleaning in this corner are scraped off with the tips of the brush hairs 2 ₃ and 3 _3. These deposits are peeled off from the medal m, and the peeled matter is scattered and released to the outer periphery by the elastic force generated by the deformation of the brush bristles 2 ₃ and 3 ₃ . This state is shown in FIG.
By providing two sets of the upper and lower rotary brushes 2 and 3 along the conveying path 1, secondary cleaning with the rotary brushes 2 and 3 is sufficiently performed.

When the brush bristles 2 ₃ and 3 ₃ of the rotating brushes 2 and ₃ are used, the bristles of the bristles 2 ₃ and 3 ₃ have a cutting surface perpendicular to the bristles as shown in FIG. ₃₁ , 3 ₃₁ , but when used, dust / dirt 2 ₃₂ (3 ₃₂ ) adheres to the edges 2 ₃₁ , 3 ₃₁ as shown in FIG. 9B, or roundness 2 ₃₃ , 3 ₃₃ and the peeling force of the brush bristles 2 ₃ and 3 ₃ is reduced.

In the first embodiment, dust and dirt 2 _{32 and} 3 ₃₂ adhering to the edges 2 ₃₁ and 3 ₃₁ of the brush bristles 2 ₃ and 3 ₃ are peeled and removed. Also, the rounded edges 2 ₃₁ , 3 ₃₁ of the brush bristles 2 ₃ , 3 ₃ are polished to recover the edges 2 ₃₁ , 3 _{31 so} that they have an edge as shown in FIG. The tip outer diameter of the bristles tends to be a little shorter).
Thereby, the peeling force of the brush hair can be maintained at a high level by removing the attached matter from the hair ends of the brush hairs 2 ₃ and 3 ₃ and restoring the edges.

Furthermore, though the brush grinding plate 8 on the embodiment 1, the upper two pairs of rotating brushes 2 is riding, the lower surface of the grinding wheel layer of bristles 2 ₃ rotates and the brush grindstone plate 8 of the rotary brush 2 8 in contact with _1, by polishing the bristles tips of the bristles 2 ₃ to restore the edge. Bristles 2 ₃ are reliably contacted with grinding stone layer 8 ₁ If the rotation several times, by polishing the bristles tips of the bristles to restore edge. Incidentally, the brush grinding plate 8 is going to move from the rotating brush 2 in the longitudinal direction with a brush friction, the elastic body 8 ₄ is suppressed less impact sound and vibration. Further, and with less noise and vibration vertical sway even if the elastic body 8 ₄ gentle support.

The rotating brush 3 below, the vertical brush grinding plate 9 is biased in the direction of the rotary brush 3 by gravity of the weight 9 _2, grinding wheel layer 9 ₁ of the vertical brush grinding plate 9 bristles of the rotary brush 3 3 Contact ₃ and polish the tip of the brush hair to recover the edge.
Here, also the vertical brush grinding plate 9 receives a strong force from the rotating brush 3, it is possible to release the force swings in a range of control of the lower swing limit stop 9 _4, stable operation is ensured Has been. Further, the swing limit stop 9 ₄ since it is buffered if rubber material, can be operated less swinging noise.

Polishing of the dust, dirt, and particles released from the surface of the medal m by the two sets of rotating brushes 2 and 3 and the brush bristles 2 ₃ and 3 _{3 on} the brush grindstone plate 8 and the vertical brush grindstone plate 9 waste acids that occur in, there is an air suction port ₇₁ of the stripping substance collecting device 7 at the lower position of the rotating brush 2, because it is a negative pressure by the fan 7 _5, by the rotating brush 2, etc. scrapings are suspended, airborne, or lightly reattached Exfoliate the bristles or the like is sucked by the negative pressure of the air suction ports 7 _1, by the filter bags 7 ₆ in the interior of the collecting device main body 7 ₂ is accommodated, it is returned from the only air outlet 7 ₃ to the atmosphere. Filter bag 7 ₆ if collected peeling of the filter bag 7 ₆ is a full are discarded been removed and replaced with a new, empty the filter bag 7 _6. Further, scrapings as negative pressure suction goes smoothly the recovery device 7, the opening 8 ₅ the ceiling wall of the rotating brush chamber wall 8 _3, the opening ₈₂ in the brush grinding plate 8, further the lower mounting base 9 ₃ openings 9 ₃₀ is provided in, it takes in atmospheric air through the opening 8 _5, air suction port dust such in the rotary brush chamber wall 8 ₃ and the air through the opening _82, the opening 9 ₃₀ sucked into 7 ₁ captures dust such a filter bag 7 _6, air is escaping from the exhaust port 7 _3.

  In the second embodiment shown in FIG. 14, the trash removal means in the first embodiment naturally drops trash instead of the suction-type peeled material collection device 7 and stores it in the lower trash collection container 30 with the chute 31. . This is an example in which the garbage collection method is simplified, and the configuration and operation other than the collection of garbage are the same as those in the first embodiment.

  INDUSTRIAL APPLICABILITY The present invention can be used for cleaning industrial products made of small metal plates having irregularities and engravings on the surface of thin plates, in addition to medals or coin coins used in game stores.

G ₀ Polishing part by rotating brush G ₁ Polishing device for medals of Example 1 G ₂ Polishing device for medals of Example 2 m Medal that is a small object 1 Transport path 2, 3 Rotating brush 2 ₁ , 3 ₁ Cylindrical roll 2 ₂ , 3 ₂ Rotating shaft 2 ₃ , 3 ₃ Brush bristles 2 ₃₁ , 3 ₃₁ Edges 2 ₃₂ , 3 ₃₂ Dust / dirt 2 ₃₃ , 3 ₃₃ Round 2 ₄ , 3 ₄ Flat gear 3 ₅ Belt wheel 4 Transmission belt 5 Motor 6 Discharge chute 7 Separation object collection device 7 ₁ Air suction port 7 ₂ Collection device body 7 ₃ Exhaust port 7 ₄ Air passage 7 ₅ Fan 7 ₆ Filter bag 8 Brush grindstone plate 8 ₁ Grinding stone layer 8 ₂ Opening 8 ₃ Restriction member Rotating brush chamber wall 8 ₄ Elastic body 8 ₄₁ Holding elastic body 8 ₅ Opening 9 Vertical brush grindstone plate 9 ₁ Grinding wheel layer 9 ₂ Weight 9 ₃ Mounting base 9 ₃₀ Opening 9 ₄ Reverse-shaped rocking limit stopper 10 Rotating disc Formula primary cleaning Device 11 the rotary disc 11 ₁ medal receiving face 11 _rotation shaft 12 bristles 13 device casing 13 ₁ inlet 13 ₂ fixed frame 13 _third annular casing portion 14 bristles 15 motor 15 ₁ transmission belt 16 medal discharging opening 20 medal guide 21 tip Part 22 Projection part 30 Garbage collection container 31 Chute

Claims (11)

A plurality of pairs of opposed upper and lower rotating brushes that clean the surface of the medals by contacting the upper surface or the lower surface of the medals conveyed along the conveyance path of medals or coins, In a medal polishing apparatus comprising a rotating means for rotating rotating brushes in opposite directions so as to send medals contacting the rotation direction of upper and lower rotating brushes in the transport direction,
A lightweight brush grindstone plate with a grindstone layer on the lower surface is placed on the upper rotating brush so that it is supported at the upper end position of the rotation locus of the tip of each bristle rotating brush. A limiting member that restricts movement of the grinding wheel plate in the conveying direction is provided, and a vertical brush grinding stone plate that can swing toward the rotating brush near the lower rotating brush and has a grinding stone layer on the surface facing the rotating brush is provided. An urging means for urging the vertical brush grindstone plate toward the opposite lower rotating brush is provided, and further discharged by polishing the medals with the rotating brush and polishing the bristle with the brush grindstone plate or the vertical brush grindstone plate. Polishing device for medals provided with discharging means for discharging dust, dirt or fine pieces from the outer peripheral space of the rotating brush.   A medal guide is provided above and below the conveyance path to prevent the medals from tilting in the vertical direction and jumping out of the conveyance path in the conveyance path before and after the rotation brush of the conveyance path of the medals in the section where the pair of upper and lower rotary brushes are located. The medal polishing apparatus according to claim 1, wherein the medal guide tip extends to a position where the tip of the medal guide enters a rotation trajectory of a brush bristle tip of the adjacent rotating brush.   3. The medal polishing apparatus according to claim 2, wherein a plurality of protrusions are provided at a predetermined pitch along a rotation axis direction of the rotary brush at a tip portion of the medal guide so that the medal guide has a comb shape.   By making the pitch dimension of the protrusion provided at the tip of the medal guide provided so as to enter the rotation trajectory of the brush bristles of the same rotating brush be different between the medal guides before and after the same rotating brush, or By changing the shape of the protrusions of the front and rear medal guides to an irregular shape, or by changing the pitch phase to be the same as the shape of the protrusions of the front and rear medal guides, but rotating the brush. The bristles change the contact state between the front and back of the medal guide and the protruding part of the medal guide and vibrate the brush bristles, effectively peeling off dust, dirt and fine pieces attached to the bristles and releasing them into the air. 4. The medal polishing apparatus according to claim 3, which is easy to perform.   The restriction member of the brush grinding stone plate is an elastic buffer member that holds the front and rear ends of the brush grinding stone plate attached to the rotating brush chamber wall to which the rotating brush is attached. Medal polishing equipment.   The medal polishing apparatus according to any one of claims 1 to 5, wherein the urging means of the vertical whetstone plate projects a weight in the direction of the rotating brush in the middle of the vertical whetstone plate, and the gravity of the weight is used as the urging force.   The medal polishing apparatus according to any one of claims 1 to 6, wherein the rotation trajectories of the bristles of the pair of upper and lower rotating brushes overlap each other at the position of the transport path.   The removal means is a suction-type exfoliation recovery device that sucks and removes dust, dirt, or fine pieces that are released into the air with the rotary brush by sucking the air in the space in which the rotary brush is stored, and The medal polishing apparatus according to any one of claims 1 to 7, wherein an opening for taking in atmospheric air is provided in a ceiling surface of a casing for storing the rotating brush and a brush grindstone plate.   The waste removing means is provided with a waste collection container for guiding a fallen object of dust, dirt, and fine pieces with a chute below the rotating brush and receiving and storing the fallen object below the chute. 7. A polishing apparatus for medals according to any one of items 7.   The brush hair which planted the bristle in the outer peripheral area of the upper surface of the rotating disk on the upstream side of the conveyance path of the medals in the medal polishing apparatus according to any one of claims 1 to 9, and fixed above the bristle Flocked downward, provided a slot for used medals above the center area on the top of the turntable, and dropped the center area on the top of the turntable as a receiving surface for medals thrown from the slot. The medals are received in the central region of the rotating disk and moved by the centrifugal force of rotation of the rotating disk in the direction between the lower brush bristles of the rotating disk and the fixed upper brush bristles to move the medals up and down. A rotary disk type primary cleaning device having a structure in which it is passed between the hairs to be primarily cleaned and sent to the conveying path is provided, and medals are primarily cleaned by the rotary disk type primary cleaning device. The medals are fed into the conveying path of the polishing apparatus, and the medals 2 Polishing device of the token class of polishing and cleaning.   The medal polishing apparatus according to any one of claims 1 to 10, wherein the medals are medals used in a gaming machine of an amusement store.

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