KR20170031497A - Polishing unit - Google Patents

Abstract

The present invention relates to a polishing apparatus, comprising: a first polishing portion of a stick shape contacting an outer surface or a side of a ring to polish the ring; a second polishing portion contacting an inner side of the ring, having a convex center area to polish an inner surface of the ring, formed to have a shape of a cross section becoming smaller from the convex portion to contact grooves formed on an outer surface or a side of the ring towards an end and having a pointed end; and a connection portion connecting the first polishing portion to the second polishing portion, having an inclined direction from the first polishing portion to the second polishing portion such that the connection portion contacts an edge between the outer surface and the side of the ring or an edge between the inner surface and the side of the ring. As such, the present invention may reduce a time for polishing a ring made of gold or silver, and minimize abrasion in polishing the ring.

Description

POLISHING UNIT

The present invention relates to a polishing apparatus, and more particularly, to a polishing apparatus capable of facilitating the polishing of each part of a ring in a polishing operation of a ring made of gold or silver and reducing loss due to wear.

Generally, various kinds of precious metal products made of gold (Au) or silver (Ag) can be properly recognized only when the original glossy surface is exposed. Therefore, the manufacturing process of various precious metal products exposes the glossy surface A polishing operation is indispensably required.

In general, a process of engraving a precious metal product involves a method of rotating a fibrous disk using a driving motor and exposing an inherent glossy surface of the noble metal by finely scraping the noble metal surface by rubbing the noble metal product on the fibrous surface of the rotating disk At this time, an abrasive is applied to the friction surface of the fibrous disk to facilitate the pouring operation.

Korean Patent Laid-Open Publication No. 10-2006-0035897 (solid gold polisher) is a conventional ring polisher, which is attached to a motor and is capable of performing a polishing operation such as gold or silver by a rotational force.

Korean Patent Laid-Open Publication No. 10-2006-0035897 has a problem that it is not easy to polish each part of the ring by attaching a conical type polisher to the motor and rotating the ring to polish the noble metal.

A problem to be solved by the present invention is to provide a polishing apparatus capable of reducing the time required for polishing a ring or the like made of gold or silver and minimizing wear during polishing.

According to an aspect of the present invention, there is provided a ring-shaped first polishing unit for contacting a surface of a ring or a side surface of the ring to form a gloss; Wherein the ring-shaped ring is convexly formed so as to be in contact with the inner surface of the ring so as to form a luster on the inner surface of the ring, and the ring-shaped ring- A second gloss portion having an end portion formed to face the second gloss portion; And a second polishing unit for connecting the first polishing unit and the second polishing unit, wherein a direction from the first polishing unit to the second polishing unit is set so as to contact an edge between the outer surface and the side surface of the ring or an edge between the inner surface and the side surface of the ring And a connection part formed to be inclined, wherein an outer diameter of the first glossy part is larger than an outer diameter of the second glossy part.

The polishing apparatus is formed at an end of the first polishing unit and includes a rotation axis fixing groove having an inner diameter corresponding to the outer diameter of the rotation axis so as to be coupled to the rotation axis of the motor, And an engaging portion having at least one through hole formed to pass through the inner side surface.

The polishing apparatus may have an octagonal shape in which the cross sections of the first and second glossy portions are rounded.

In the polishing apparatus, the cross section of the connection portion may be formed as an octagon having a rounded shape.

The polishing apparatus may have a hexagonal shape with a round cross section of the first glossy portion.

The polishing apparatus may be configured such that the cross section of the second glossy portion and the connecting portion is a rounded square.

The length of the first glossy portion may be 4 to 7 cm, the length of the second glossy portion may be 4 to 7 cm, and the length of the connection portion may be 1 to 2 cm.

The polishing apparatus according to the present invention has gloss and connection portions having different outer diameters and shapes and can easily form a gloss with one device on all parts such as the outer surface, side surface, inner surface, and corner of the ring.

1 is a perspective view showing a polishing apparatus according to a first embodiment of the present invention;
FIG. 2 is a perspective view showing the polishing operation of each part of the ring in the polishing apparatus shown in FIG. 1; FIG.
3 is a cross-sectional view taken along the line I-I 'of the polishing apparatus shown in FIG. 1;
FIG. 4 is a cross-sectional view taken along line II-II 'of the polishing apparatus shown in FIG. 1. FIG.
FIG. 5 is a cross-sectional view taken along line III-III 'of the polishing apparatus shown in FIG. 1; FIG.
FIG. 6 is a cross-sectional view taken along the line IV-IV 'of the polishing apparatus shown in FIG. 1. FIG.
7 is a perspective view showing a polishing apparatus according to a second embodiment of the present invention;
8 is a cross-sectional view taken along line V-V 'of the polishing apparatus shown in FIG. 7;
9 is a cross-sectional view taken along line VI-VI 'of the polishing apparatus shown in FIG. 7;
10 is a cross-sectional view taken along line VII-VII 'of the polishing apparatus shown in FIG. 7;
11 is a cross-sectional view taken along the line VIII-VIII 'of the polishing apparatus shown in FIG. 7;

Hereinafter, the description of the present invention with reference to the drawings is not limited to a specific embodiment, and various transformations can be applied and various embodiments can be made. It is to be understood that the following description covers all changes, equivalents, and alternatives falling within the spirit and scope of the present invention.

In the following description, the terms first, second, and the like are used to describe various components and are not limited to their own meaning, and are used only for the purpose of distinguishing one component from another component.

Like reference numerals used throughout the specification denote like elements.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It is also to be understood that the terms " comprising, "" comprising, "or" having ", and the like are intended to designate the presence of stated features, integers, And should not be construed to preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 11 attached herewith.

FIG. 1 is a perspective view showing a polishing apparatus according to a first embodiment of the present invention, FIG. 2 is a perspective view showing a polishing operation for each part of a ring in the polishing apparatus shown in FIG. 1, 6 is a cross-sectional view showing each section cut along the cutting line shown in Fig.

1 to 6, a polishing apparatus 100 according to a first embodiment of the present invention includes a first polishing unit 110, a second polishing unit 120, a connection unit 130, and a coupling unit 140, . ≪ / RTI >

Specifically, the polishing apparatus 100 is formed into a bar shape having different diameters for each part. The polishing apparatus 100 is attached to the motor 20 installed in the motor housing portion 30 and rotates. When the polishing apparatus 100 rotates, the surface and the outer surface of the annular noble metal, such as the ring 10, may contact with each other to generate gloss. At this time, in order to prevent the vibration of the polishing apparatus 100, the mounting portion 40 coupled to the motor receiving portion 30 may be fixed to the work table.

The first gloss portion 110 is formed into a bar shape which is brought into contact with the outer surface or the side surface of the ring 10 to make it glossy. The first gloss portion 110 causes the ring 10 to be polished while the outer surface or the side surface of the ring 10 is in contact with the rotation.

The first glossy portion 110 is preferably formed to have a length of about 4 to 7 cm. When the length of the first glossy portion 110 is less than 4 cm, the size of the first glossy portion 110 is too small as compared with the size of the noble metal, which may result in a risk of operator's hand injury. Also, when the length of the first polishing unit 110 is 7 cm or more, the entire length of the polishing apparatus 100 becomes long, and a predetermined turning radius is not formed at the time of rotation, thereby damaging the noble metal such as a ring.

The first glossy portion 110 is preferably formed to have a diameter of about 1.5 to 2.5 cm. When the diameter of the first glossy portion 110 is 1.5 cm or less, the contact area with the ring 10 becomes small and the polishing operation time may become long. When the diameter of the first shiny part 110 is 2.5 cm or more, the contact area with the ring 10 is increased and the working time can be shortened. However, since the external contact area is wider than the ring 10, It may come into contact with the surface of the rotating first gloss portion 110 to cause an image or the like to float.

The first gloss portion 110 may be formed such that its cross section has a rounded octagonal shape as shown in FIG. The first gloss portion 110 has an octagonal cross section and each corner is rounded. For example, when the first shine portion 110 is formed only in an octagonal shape, a problem may arise that scratches may occur on the surface of the ring due to angled edges, or the ring surface may be cut. Therefore, it is preferable that the first gloss portion 110 is formed with rounded corners to prevent cutting or scratching of the ring surface due to the angled corners.

The second gloss portion 120 may be formed in a convex shape in the middle region so as to be in contact with the inner surface of the ring 10 to form a gloss on the inner surface of the ring 10. In addition, the second gloss portion 120 may be formed in such a manner that a cross section thereof is reduced from the convex portion to the end side so as to be in contact with the groove formed on the outer surface or the side surface of the ring 10, As shown in Fig. 2, the second gloss portion 120 is convexly formed so that the ring 10 is inserted and moved inward to easily contact the inner surface of the ring 10.

Particularly, since the second gloss portion 120 is formed to have a small cross-section as it proceeds toward the end side, it is possible to facilitate the luster and washing of the inside of the rings 10 having various thicknesses. In addition, the second gloss portion 120 is formed in such a manner that the end portion of the second gloss portion 120 is formed to have a tapered shape for luster of the groove portion formed on the surface of the ring 10.

Here, the second gloss portion 120 may be formed in an octagonal shape having a round cross section as shown in the sectional view of FIG. The second polishing unit 120 may be formed in the same shape as the first polishing unit 110 so as to prevent cutting or scratching of the ring surface due to the angled edges.

Further, in the region where the size of the cross section of the second gloss section 120 is the largest, the effect of enlarging the size of the angled face can be increased, and the cross section can be moved to a smaller dimension to provide fine gloss. In other words, when the cross section of the second gloss section 120 is smaller, the size of the angled surface becomes smaller and becomes closer to the annular shape, so that a fine gloss operation can be performed after the first gloss operation.

The second gloss portion 120 can effectively perform surface gloss of the ring 10 due to the rounded octagonal cross section.

The second gloss portion 120 is preferably formed to a length of 4 to 7 cm. When the length of the second polishing unit 120 is less than 4 cm, the working efficiency of the polishing operation of the ring 10 is decreased and it may be difficult to fix the ring uniformly. If the length of the second polishing unit 120 is 7 cm or more, A problem may occur.

The diameter of the thickest portion of the second glossy portion 120 is preferably 1 to 1.2 cm. If the diameter of the thickest part of the second glossy part 120 is 1 cm or less, the working time may be long. If the diameter is 1.2 cm or more, it may be difficult to perform the polishing operation of the ring having a small inner diameter.

The connection part 130 connects the first shiny part 110 and the second shiny part 120. The connection part 130 is formed so as to extend from the first polishing part 110 to the second polishing part 120 so as to come into contact with the edge between the outer surface and the side surface of the ring 10 or between the inner surface and the side surface of the ring 10 Can be formed to be inclined. At this time, the connecting portion 130 may be formed such that the inclined surface rounds. As a result, the edge of the ring 10 can be precisely contacted.

The connection part 130 is preferably formed to have a length of 1 to 2 cm. For example, when the length of the connecting portion 130 is 2 cm or more, the cross-sectional diameter of the connection portion 130 is smaller than the cross-sectional diameter of the thick portion of the second glossy portion 120, The connecting portion 130 may be bent or broken during the operation. When the length of the connection part 130 is 1 cm or less, the distance between the first polishing part 110 and the second polishing part 120 becomes close to each other, which may cause an operator's injury during the edge polishing operation of the ring 10, There is a possibility of causing damage to jewelry and the like attached to the outer surface. Therefore, it is preferable that the connection part 130 is formed to have a length of 1 to 2 cm.

As shown in FIG. 6, the cross section of the connection part 130 may be formed in a round octagonal shape. The effect of the rounded octagonal section has been described above and will be omitted.

Since the cross sections of the first gloss portion 110, the second gloss portion 120 and the connection portion 130 are formed in a round octagonal shape as described above, It is advantageous in that the manufacturing process can be simplified because it can be cut or compressed.

Here, as shown in FIG. 3, the first glossy portion 110 may be formed larger than the diameter of the second glossy portion 120. The wider the outer surface area of the first glossy portion 110 during the polishing operation of the ring 10, the shorter the processing time. Since the first glossy portion 110 is independent of the inner diameter of the ring 10, it is preferable that the first glossy portion 110 is formed larger than the diameter of the second glossy portion 120.

The engaging portion 140 is formed at one end of the first glossy portion 110. The engaging portion 140 may be formed with a rotation shaft fixing groove 147 so that the rotation shaft 25 is inserted into the rotation shaft 25 of the motor 20. The engaging portion 140 may be provided with a plurality of through holes 140 so that the fastening means may pass through the inner surface from the outer surface so as to fix the rotating shaft 25. [

FIG. 7 is a perspective view showing a polishing apparatus according to a second embodiment of the present invention, and FIGS. 8 to 11 are cross-sectional views, respectively, taken along the cutting lines shown in FIG.

The polishing apparatus shown in Figs. 7 to 11 differs from the polishing apparatus shown in Figs. 1 to 6 only in the sectional shape of the first polishing unit 110, the second polishing unit 120 and the connecting unit 130 Since the same components are used, duplicate descriptions will be omitted and differences will be described.

7 to 11, a polishing apparatus 100 according to a second embodiment of the present invention includes a first polishing unit 110, a second polishing unit 120, a connecting unit 130, and a coupling unit 140, . ≪ / RTI >

The cross section of the first gloss portion 110 may be formed to have a rounded hexagonal shape as shown in FIG. The cross section of the first gloss portion 110 is formed in a rounded hexagonal shape so that the gloss of the outer surface and the side surface of the ring 10 can be facilitated.

The cross section of the second gloss portion 120 may be formed to have a round rectangular shape as shown in FIG. The cross section of the second gloss portion 120 may be formed in a rounded rectangular shape so that the second gloss portion 120 can easily be polished when it comes into contact with the inner surface of the ring 10.

The connection part 130 connects the first shiny part 110 and the second shiny part 120. As described in the first embodiment, the connection part 130 causes the edge of the ring 10 to come in contact with the surface of the ring 10 so as to make the contact surface glossy. The connection portion 130 may be formed in a round rectangular shape as shown in FIG.

The engaging portion 140 is formed at an end of the first polishing portion 110. As described above, the engaging part 140 is formed with a rotation shaft fixing groove 147 into which the rotation shaft 25 of the motor 20 is inserted. The rotation shaft 25 is fixed to the inner surface A plurality of through holes 140 may be formed to pass through the through holes 140. [

The polishing apparatus according to the first and second embodiments of the present invention is made of an iron material and is advantageous in cost compared with a conventional polishing apparatus using a cemented carbide.

As described above, the polishing apparatus according to the first and second embodiments of the present invention is provided with a shining portion and a connecting portion having different outer diameters and shapes, and is provided as one device on the outer surface, the side surface, the inner surface, Gloss can be easily formed.

10: Ring
20: Motor
25:
30: Motor receiving portion
40:
100: Polishing device
110: first gloss portion
120: second gloss portion
130:
140:
145: Through hole
147: Rotation shaft fixing groove

Claims (7)

A rod-shaped first glossy portion contacting the outer surface or the side surface of the ring to make it glossy;
Wherein the ring-shaped ring is convexly formed so as to be in contact with the inner surface of the ring so as to form a luster on the inner surface of the ring, and the ring-shaped ring- A second gloss portion having an end portion formed to face the second gloss portion; And
A direction from the first polishing unit to the second polishing unit to contact the edge between the outer surface and the side surface of the ring or between the inner surface and the side surface of the ring, And a connecting portion formed obliquely,
Wherein an outer diameter of the first glossy portion is larger than an outer diameter of the second glossy portion.
The method according to claim 1,
A rotation shaft fixing groove formed at an end of the first shining portion and having an inner diameter corresponding to the outer diameter of the rotation shaft so as to be coupled to the rotation shaft of the motor, And at least one through-hole formed to allow the at least one through-hole to be formed.
The method according to claim 1,
Wherein the first and second gloss portions are formed in a circular octagonal shape in cross section.
The method of claim 3,
Wherein a cross section of the connection portion is formed in a round octagonal shape.
The method according to claim 1,
Wherein the first gloss portion has a rounded hexagonal cross section.
6. The method of claim 5,
Wherein the second gloss portion and the connecting portion have a rounded rectangular cross section.
The method according to claim 1,
The length of the first glossy portion is 4 to 7 cm,
The length of the second glossy portion is 4 to 7 cm,
And the length of the connecting portion is 1 to 2 cm.

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