JP2004209289A - Lifting and polishing device for pachinko balls - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lifting and polishing device for Pachinko balls, which can excellently lift balls without causing ball biting etc. during lifting and has high polishing capacity. <P>SOLUTION: This lifting and polishing device for Pachinko balls is equipped with rollers placed upside and downside. An endless lifting belt is stretched between both rollers. Polishing cloth set facing the upward going side surface of the lifting belt and a picking plate set on the backside face of the polishing cloth to pick up Pachinko balls together with the lifting belt via the polishing cloth are equipped on the lifting and polishing device in which the lifting belt is driven by a motor to lift up Pachinko balls. The picking plate is equipped with a ball passage in which a plurality of semicircular recessed grooves slightly larger than the diameter of a Pachinko ball are formed. A rotating part formed by expanding width of the recessed groove toward either right or left direction of the Pachinko ball lifting direction is equipped in a part of the ball passage. Thus the lifting and polishing device for Pachinko balls can uniformly polish the whole circumference of Pachinko balls, so that the high polishing capacity is obtained. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko ball lifting and polishing apparatus that performs polishing of dirt on a pachinko ball while pumping pachinko balls stored in a storage tank below a pachinko machine to an upper storage tank.

  Conventionally, as a pachinko ball lifting and polishing apparatus, an endless lifting belt is provided on one surface of a lifting path, and an abrasive such as paper or cloth having a polishing ability is arranged on the other surface, and on the back surface thereof. As shown in FIGS. 7 and 8, a guide rail 2 'made of an elastic material such as urethane and formed with a plurality of rows of substantially semicircular concave grooves 1' slightly larger than the diameter of a pachinko ball is provided via a spring 3 'or the like. It is fixed to a support member 4 ', and a pachinko ball 5' is interposed between the lifting belt 7 ', the polishing pad 6', and the guide rail 2 'so as to sandwich the pachinko ball 5'. 2. Description of the Related Art An apparatus for performing polishing while lifting a ball is known.

  As shown in FIG. 8, these conventional pumping and polishing apparatuses increase the contact area between the pachinko balls 5 ′ to be pumped and polished and the abrasive 6 ′, Since the guide rail 2 ', which is elastically deformable so as to follow the pinched pachinko ball, is fixed to the support member 4' via a spring 3 'or the like, the pachinko ball is required to obtain a high polishing ability. When the clamping pressure of 5 ′ is increased, the guide rail 2 ′ is bent and the pachinko ball 5 ′ is embraced in the concave groove 1 ′, so that the intended contact pressure cannot be obtained, and the polishing material 6 ′ Becomes large, and the pachinko ball 5 'does not rotate well, so that the polishing is not satisfactorily performed on the entire pachinko ball.

  Further, the friction between the pachinko balls 5 'and the abrasive 6' is increased, and the force required for pumping is increased, so that the pachinko balls 5 'are not well pumped and the pachinko balls 5' In some cases, the ball stays in the ball passage 1 'to cause biting of the ball, which hinders lifting.

  Conversely, when the holding pressure is reduced, the ball biting of the pachinko balls is reduced, but due to the contact area with the pachinko balls, the contact pressure with the polishing cloth is significantly reduced, and a good polishing ability is obtained. There was a problem that it was not possible.

  Therefore, the present invention has been made by paying attention to the above-mentioned problem, and it is possible to carry out the pumping well without causing the pachinko balls to bite or the like in the pumping, and to obtain a high polishing ability. It is an object of the present invention to provide a pachinko ball lifting and polishing apparatus that can perform the above.

  In order to solve the above problems, the present invention provides (1) arranging rotating rollers at the top and bottom, stretching an endless lifting belt between the rotating rollers, and A polishing cloth disposed opposite to the polishing cloth; and a clamping plate disposed on the back surface of the polishing cloth and clamping the pachinko balls between the polishing cloth and the lifting belt. A pachinko ball lifting and polishing apparatus for driving and polishing a pachinko ball by driving the ball, wherein the holding plate has a plurality of rows of substantially semicircular concave grooves formed slightly larger than the diameter of the pachinko ball. A pachinko machine comprising: a pachinko machine; a pachinko machine comprising: a ball path; Ball lifting and polishing equipment, (2) The pachinko ball passes through the rotating part The pachinko machine according to (1), wherein the width of the concave groove is formed so as to change the rotation axis of the pachinko ball and change the contact surface of the pachinko ball with the polishing cloth in the entire circumference of the pachinko ball. (3) The pachinko ball lifting and polishing apparatus according to the above (1) or (2), wherein the ball passage is provided with a plurality of rotating portions in the pachinko ball lifting direction. 4) The pachinko ball lifting and polishing apparatus according to the above (3), wherein the plurality of rotating parts are formed by expanding the width of the concave groove in the same direction as the pachinko ball lifting direction. And

  The pachinko ball lifting and polishing apparatus of the present invention includes, in a part of the ball passage, a rotating portion having a width of the ball passage expanded in a right or left direction with respect to a pachinko ball lifting direction. Thus, the pachinko ball is rotated by passing through the rotating part and opposing the traveling direction, so that the entire circumference of the pachinko ball can be uniformly polished, and a high polishing ability can be obtained.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing a pachinko ball lifting and polishing apparatus in the present embodiment, FIG. 2 is a side view showing a pachinko ball lifting and polishing apparatus in the present embodiment, and FIG. FIG. 4 is a cross-sectional view taken along a line AA of the pachinko ball lifting and polishing apparatus of FIG. 4. FIG. 4 is a top view showing a holding plate used in the pachinko ball lifting and polishing apparatus of the present embodiment. It is sectional drawing in the cross section BB of the holding plate used for the pachinko ball lifting and polishing apparatus of the present embodiment, and FIG. 6 is a polishing diagram comparing the pachinko ball lifting and polishing apparatus of the present embodiment with a conventional product. It is a graph which shows a test result.

  As shown in FIGS. 1 and 2, the pachinko ball lifting and polishing apparatus 1 of the first embodiment has substantially the same configuration as the conventional lifting and polishing apparatus. A rotatable lower rotary drum 3 and an upper rotary drum 4 are arranged, and an endless lifting belt 5 is stretched on each of these drums with a predetermined tension. When the lower rotary drum 3 is rotated by the drive motor 10, the lower rotary drum 3 and the upper rotary drum 4 circulate and move.

  Guide rollers 6 are provided at predetermined intervals on the lifting side of the lifting belt 5 so that the lifting belt 5 moves along the support columns 1. On a surface opposite to the surface on which the guide rolls 6 are arranged, a cover case 7 as a support member in which a guide rail 16 as a holding plate described later is stored and supported. The cover case 7 is divided by a predetermined length so as to be openable and closable so as to be fixed at the other end by the locking member 12.

  At a predetermined upper and lower position of the cover case 7, there is provided a fixture 8 for fixing a polishing cloth 9 as an abrasive material interposed between the guide rail 16 and the lifting belt 5. As shown in FIG. 1, the cloth 9 covers the surface of the guide rail 16 arranged in the cover case 7 with a predetermined tension, and is arranged to face the lifting belt 5.

  Further, a supply guide 11 for supplying pachinko balls 14 discharged from a lower storage tank or the like to the lifting polishing apparatus 1 is provided adjacent to the lower rotary drum 3 on which the lifting belt 5 is stretched. ing.

  The features of the pumping and polishing apparatus 1 according to the present embodiment will be described with reference to FIG. 3 which is a cross-sectional view taken along the line AA. In the inside of the cover case 7, a substantially semicircular shape slightly larger than the diameter of the pachinko ball 14 is provided. A guide rail 16 as a holding plate in which concave grooves 17 are formed in seven rows at a predetermined interval is fixed on the entire back surface thereof via a rubber material 15 having a predetermined thickness, and is provided at a predetermined interval. The engaging portion 18 provided is engaged with the notch portion 19 provided on the guide rail 16.

  If the guide rail 16 is made of a soft member that is elastically deformed, the guide rail 16 is deformed by the pinching pressure for pinching the pachinko ball 14 as in the above-described conventional technique. It is preferable to have a compression elastic coefficient not less than a predetermined value that does not cause elastic deformation, because the rotation of the elastic member 14 does not rotate or the frictional force with the polishing pad 9 increases and stays. It is preferable that the material is not less than 1 gigapascal (GPa). Further, since it is necessary to provide the concave groove 17 in these guide rails 16, it is preferable that the material be easy to process the concave groove 17. Therefore, in this embodiment, an artificial marble based on an acrylic resin is used, but the present invention is not limited to this. Or other members satisfying the above conditions, for example, a thermoplastic high-rigid resin such as polycarbonate or polyphenylene sulfide (PPS), or a thermosetting high-rigid resin such as a melamine resin, an epoxy resin, a phenol resin, or an unsaturated polyester, or It may be a composite.

  Further, the rubber material 15 for fixing the guide rail 16 to the cover case 7 may directly fix the guide rail 16 to the cover case 7 without using the rubber material 15. When the presence or absence of the pachinko balls 14 occurs, it is possible to prevent the cover case 7 from tilting and the like and thereby causing uneven polishing due to uneven pressure by deforming the rubber material 15. Preferably, the rubber hardness of the rubber material 15 is 70 to 80, and the thickness thereof may be appropriately selected depending on the material of the rubber used and the rubber hardness.

  As the polishing cloth 9 used in the present embodiment, a cloth having a polishing ability used in a conventional pumping apparatus, such as a nylon cloth, may be used. The pachinko balls and the polishing cloth 9 do not contact evenly, and a sufficient polishing ability may not be obtained. If the pachinko ball is too thick, the polishing cloth 9 is elastically deformed, and the effect of the present invention is reduced. The thickness is preferably in the range of 1.2 to 1.9 mm.

  As shown in FIGS. 4 and 5, the concave groove 17 is provided at a predetermined position of the guide rail 16 in a predetermined direction (left side in the present embodiment) with respect to the lifting direction of the pachinko ball 14. (In the present embodiment, three) are provided.

  As shown in FIG. 5, in the rotating parts 21, as the concave groove 17 is expanded in a predetermined direction, a gap 20 is generated between the pachinko ball 14 and the polishing cloth 9, or a frictional force with the polishing cloth 9 is generated. Is reduced, the pachinko balls 14 rotate in the direction opposite to the expanded direction, and the rotation axis around which the pachinko balls 14 rotate by lifting can be changed. By repeating this as appropriate, Thus, the entire circumference of the pachinko ball 14 can be evenly polished.

  In addition, the length of these rotating parts 21 may be appropriately determined based on the angle at which the pachinko ball 14 is to be rotated, and the rotation angle may be determined when three rotating parts 21 are provided as in the present embodiment. Is preferably rotated about 45 degrees by one rotating unit.

  FIG. 6 shows the results of a test of the polishing performance of the above-described pumping apparatus 1 of the present embodiment and the conventional pumping apparatus.

  As a method of the polishing test, use a cleaned new pachinko ball to which no dirt is attached, apply mechanical grease as dirt to the entire circumference, and apply this to a predetermined number of times by each pumping polishing device. It was then pumped and polished, and its polished state was measured.

  As a method for measuring the polishing state, a spectrophotometer CM-2022 (trade name, manufactured by Minolta Co., Ltd.) is used, the light reflectance of the white reference plate is set to 100%, and the grease is adhered onto the white reference plate. The new pachinko balls and the polished pachinko balls were arranged, and the light reflectance was averaged when measured ten times using different pachinko balls.

  The measurement result of the new pachinko ball was displayed as a blank in FIG. 6, and the light reflectance was 83.4%.

  From the polishing test results in FIG. 6, it is found that the pumping polisher 1 of the present embodiment can obtain a higher polishing ability than the conventional pumping polisher at each pass number regardless of the number of passes of the pump polishing apparatus. It can be seen that a high polishing state can be obtained even with a particularly small number of passes.

  As described above, the embodiments of the present invention have been described in the above embodiments with reference to the drawings. However, the present invention is not limited to these embodiments, and may be modified or added without departing from the gist of the present invention. Needless to say, this is also included in the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the pachinko ball lifting and polishing apparatus in the Example of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows the pachinko ball lifting and polishing apparatus in the Example of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing in section AA of the pachinko ball lifting and polishing apparatus in the Example of this invention. It is a top view which shows the holding plate used for the pachinko ball lifting and polishing apparatus in the Example of this invention. It is sectional drawing in section BB of the holding plate used for the pachinko ball lifting and polishing apparatus in the Example of this invention. It is a graph which shows the polishing test result which compared the pachinko ball lifting and polishing apparatus of this example with the conventional product. It is an external appearance perspective view which shows the guide rail part of the conventional pumping apparatus. It is a side surface schematic diagram which shows the pumping condition in the conventional pumping apparatus.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Lifting polishing apparatus 2 Support pillar 3 Lower rotating drum 4 Upper rotating drum 5 Lifting belt 6 Guide roller 7 Cover case 8 Fixing fixture 9 Polishing cloth 10 Drive motor 11 Supply guide 12 Locking tool 13 Hinge 14 Pachinko ball 15 Rubber material 16 Guide rail (clamping plate)
17 concave groove (ball passage)
18 Engagement part 19 Notch part 20 Air gap 21 Rotation part

Claims (4)

A rotating roller is disposed on the upper and lower sides, and an endless lifting belt is stretched between the rotating rollers, and a polishing cloth arranged opposite to a rising side surface of the lifting belt, and a back surface of the polishing cloth. A pinching plate for holding a pachinko ball between the pachinko ball and the lifting belt via the polishing cloth, and driving the lifting belt with an electric motor to lift the pachinko ball and polishing the pachinko ball. In the lifting polishing apparatus, the holding plate includes a ball passage in which a plurality of rows of substantially semicircular concave grooves slightly larger than the diameter of the pachinko ball are formed, and a part of the ball passage includes a pachinko ball. A pachinko ball lifting and polishing apparatus comprising: a rotating portion formed by enlarging the width of the concave groove in either the left or right direction with respect to the lifting direction. The rotating portion is formed by expanding the width of the concave groove so as to change the rotation axis of the pachinko ball by passing the pachinko ball and change the contact surface with the polishing cloth in the entire circumference of the pachinko ball. The polishing machine for lifting pachinko balls according to claim 1. The pachinko ball lifting and polishing apparatus according to claim 1 or 2, wherein the ball passage has a plurality of rotating portions provided in a pachinko ball lifting direction. The pachinko ball lifting and polishing apparatus according to claim 3, wherein each of the plurality of rotating parts is formed by increasing the width of the concave groove in the same direction as the pachinko ball lifting direction.

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