KR20210106123A - Manufacturing Method of Jewelry for Jewelry of Jewelry - Google Patents

Abstract

The present invention relates to ring (11) jewelry with a pattern formed by processing a base metal (111) of precious metal and/or forming a plating layer (112) on the base metal (111). According to the present invention, the precious metal jewelry has a plating layer (112) formed on the upper surface of metal (111) with a uniform thickness over the entire surface and glossy regions (111-1, 111-2) exposing the base metal (111) are formed on the base metal (111) and/or the plating layer (112) by a rod-shaped polishing device (12). The jewelry has a metal region (112) exposing the base metal layer, which is a region not polished at all by the rod-shaped polishing device (12). Since the method for manufacturing precious metal jewelry is controlled to polish the base metal (111) and/or the base metal plating layer (112) in a fine linear shape while differently changing length, depth, and pitch in the line width direction, light reflections of the base metal plating layer (112) and the base metal (111) are different from each other, so that the periphery of the pattern is not clear and different light reflection regions (113) are formed in comparison with a pattern produced by a mask, thereby manufacturing expensive precious metal jewelry.

Description

The manufacturing method of precious metal jewelry TECHNICAL FIELD

The present invention relates to a ring (11) jewelry that is given a pattern by processing the metal (111) of a noble metal and/or the plating layer (112) on the metal (111).

In one aspect, the present invention provides a region in which light reflection is different by changing the depth, length, and line width direction of the line shape during pattern processing of the base metal of the noble metal and/or the metal plating layer on the base metal. It relates to a method for manufacturing precious metal jewelry that can be processed.

5A to 5C are diagrams for explaining a method of imparting a pattern to a precious metal jewelry which has been conventionally performed. In FIG. 5A, for example, in the ring 50, the base metal 51 is made of gold or an alloy of gold. A mask 52 having a desired pattern is formed on the upper surface of the base metal 51 . The base metal 51 is partially covered by the mask 52 , and metal plating is performed on the portion where the mask 52 is not, thereby forming a metal plating film 53 . Thereafter, as shown in FIG. 5B, the mask 52 is removed from the base metal 51 made of gold or an alloy of gold shown in FIG. 5A, and the base metal 51 ), a metal plating film 53 having a predetermined pattern remains. In the ring 50, as shown in FIG. 5C, when viewed from above, the base metal 51 having the same shape as the mask 52 with the metal plating film 53 as a background appears gold.

The present applicant has proposed, in Japanese Patent Laid-Open No. 2002-282024, a jewelry made of precious metal having jagged stripes on the outer periphery using a mask.

In the conventional manufacturing method of precious metal jewelry, a desired pattern is metal-plated using a mask having a predetermined shape. In the manufacturing method of the noble metal jewelry, as in Patent Document 1, a hard carbon film is formed on a base metal as a mask. When plating a noble metal such as ruthenium, the shape of the mask is collapsed or peeled off because of the high temperature. For reasons such as losing, the desired pattern may not be obtained. Masks that can withstand high temperatures are not only expensive, but there is a problem in that the traces of the mask are too certain when gradation is desired around the pattern. When the trace of a pattern is too clear, the said noble metal jewelry may look cheap, and there existed a problem that it did not look good compared with the thing using expensive noble metal. Moreover, since the manufacturing and removal of the said mask is a chemical process, it leads to pollution generation in many cases.

In order to solve the above problems, the present invention, without using a mask, forms a metal plated layer on the entire surface of the base metal, and finely changes the depth, length, and line width direction of the pitch while forming the metal plated layer. An object of the present invention is to provide a precious metal jewelry in which different light reflection regions are formed between the metal plating layer and a portion of the base metal by grinding in a shape.

In addition, in the present invention, by detecting the metal plating layer on the base metal, by polishing the periphery of the pattern stored in advance while changing the pitch in the depth, length, and line width direction as desired, different light reflection areas or areas with fading An object of the present invention is to provide a method for manufacturing precious metal jewelry that can produce

The precious metal jewelry of the present invention has a pattern formed by a noble metal made of a base metal and a metal plating layer formed on the noble metal, a metal plating area where the metal plating layer is exposed, and the metal plating area are polished, The glossy area made of the glossy surface of the metal, and the metal plating layer and the base metal are polished in a fine linear shape, and the depth and/or length of polishing the base metal and the metal plating layer are different, so that the reflection of light is different from each other. It is characterized in that a different light reflection area, the metal plating area, a glossy area, and a different light reflection area are formed as a pattern.

Further, in the precious metal jewelry of the present invention, in the above precious metal jewelry, the base metal is made of a metal such as gold, platinum, silver, copper, or an alloy of these metals, and the metal plating layer is ruthenium, rhodium, palladium , platinum, silver, copper, or the like, or characterized in that it is made of at least one of alloys of these metals.

In addition, in the precious metal jewelry of the present invention, in the above precious metal jewelry, fine linear images of different light reflection regions with different light reflections, a linear metal plating layer, and a linear base metal are alternately or at predetermined intervals. It is characterized by having me.

Further, the precious metal jewelry of the present invention is characterized in that, in the above-mentioned precious metal jewelry, a metal plating region, a glossy region, and a different light reflection region are formed on a curved surface.

In addition, in the precious metal jewelry of the present invention, in the above-mentioned precious metal jewelry, different light reflection regions comprising a glossy region, the metal plating region surrounding the glossy region, and the fine linear shape surrounding the metal plating region It is characterized in that it consists of a pattern based on

Further, the precious metal jewelry of the present invention is characterized in that, in the above-mentioned precious metal jewelry, the base is porcelain, glass, or a synthetic resin, and a base metal layer and a metal plating layer are formed thereon.

In addition, the manufacturing method of the precious metal jewelry of the present invention, a pattern is formed by a noble metal made of a base metal and a metal plating layer formed on the noble metal, the step of forming a metal plating layer on the noble metal made of the base metal; After grinding the metal plating layer, a step of polishing the surface of the base metal until the surface becomes a glossy surface, and a predetermined reciprocating motion of a rod-shaped polishing tool having an abrasive formed at the tip of the metal plating layer and the base metal, It is characterized in that the metal plating area, the glossy area, and the different light reflection areas are formed as a pattern, as the depth of polishing the base metal and the metal plating layer is different at the same time as polishing in a fine linear shape. .

Further, in the manufacturing method of precious metal jewelry of the present invention, in the above manufacturing method, the length, depth, and pitch of the fine linear shape of the different light reflection regions are stored in advance in the x-axis direction and the y-axis direction, based on information stored in advance. , a driving device that can be driven in the z-axis direction, and a control device of the driving device, characterized in that it is formed by a processing surface detection sensor for detecting the processing surface.

In addition, the manufacturing method of the precious metal jewelry of the present invention is characterized in that, in the above manufacturing method, when different light reflective regions are produced, the moving pitch of the rod-shaped polishing tool is changed.

In addition, in the manufacturing method of the precious metal jewelry of the present invention, in the above manufacturing method, the base is made of ceramics, glass, or synthetic resin, and on the base, any one of electroless plating, chemical or physical vapor phase growth, or sputtering It is characterized in that the base metal layer and the metal layer are formed by one.

According to the present invention, by giving a change in the linear polishing depth, length, and pitch in the line width direction for the base metal of precious metal jewelry and the metal plating layer formed thereon, and finely processing it, a region with different light reflection is formed as a pattern. . In the linear shape with different polishing depth, length, and pitch, the color of the base metal, the color of the metal plating layer, and the color due to the difference in light reflection due to the depth and/or length is formed, so compared to using a mask, The pattern looks pretty, and the quality of the precious metal can be further deepened.

In addition, according to the present invention, many patterns can be easily produced by changing the combination of the area where the base metal is visible, the area on which the metal plating is applied, and the area with different light reflection. In particular, linear polishing with varying depth, length, and pitch can express complex patterns and at the same time express the well-groomed animal hair.

In addition, according to the present invention, by detecting the position at the moment when the tip of the abrasive tool contacts the metal plating layer, grinding is started so that the linear depth, length, and line width directions memorized in advance from the time and position are obtained. , it is possible to accurately produce a pattern with different light reflection areas as desired for a curved surface as well as a flat surface.

In addition, according to the present invention, since there is no chemical treatment used for the formation and removal of the mask, it is safe and does not cause pollution, and it is possible to mass-produce a complex shape in which a change in thickness is expressed in a pattern.

In addition, according to the present invention, since the adhesion between the base metal and the metal plating layer is high, the metal plating layer does not come off from the base metal, and repair or regeneration using a polishing tool is easily possible.

1A is a cross-sectional view for explaining an example in which a pattern is formed on a ring as an embodiment of the present invention.
1B is a perspective view for explaining an example in which a pattern is formed on a ring as an embodiment of the present invention.
Fig. 2 is an enlarged schematic diagram for explaining a state in which the pattern of the present invention is produced.
3A is a view showing that, as an embodiment of the present invention, a metal plating layer is formed on the upper surface of the base metal to have a uniform thickness over the entire surface.
FIG. 3B is an enlarged view of a portion where a glossy area is formed and a portion of a different reflective area according to an embodiment of the present invention.
Fig. 3C is a cross-sectional view taken along line III-III' in Fig. 3B.
It is a figure explaining an example of the manufacturing method for producing the precious metal jewelry of this invention.
FIG. 5A is a view showing a base metal made of gold or an alloy of gold or the like in a conventional method for imparting a pattern to precious metal jewelry.
Fig. 5B is a side view showing a state in which the mask is removed in a conventional method for imparting a pattern to precious metal jewelry.
Fig. 5C is a top view of the state shown in Fig. 5B.

The precious metal jewelry of the present invention consists of a noble metal made of a base metal and a metal plating layer formed on the noble metal, and is located in a metal plating region, a gloss region of the base metal, and in different light reflection regions where the metal plating region and the base metal are mixed. The pattern is formed by The metal plating region is exposed as it is without the metal plating layer being polished. The glossy area is polished so that the metal plating area is shiny and smooth, and has a glossy surface exposed to the base metal. In the different light reflection regions, the metal plating layer and the base metal are polished in a fine linear shape, and the depth, length, and line width directions of polishing the base metal and the metal plating layer are different from each other. The different light reflection regions have different reflections of light by the base metal and the metal plating layer.

In addition, in the precious metal jewelry of the present invention, since the metal plating region, the glossy region, and the different light reflection regions are formed as a pattern, the pattern can be expressed without being overly certain as in the prior art. The different light reflection areas can express various patterns by combining the metal plating area and the glossy area. In particular, by changing the length, depth, and pitch in the line width direction of the different light reflection regions, numerous combinations such as clear patterns and faint patterns are easily possible.

Further, in the precious metal jewelry of the present invention, in the precious metal jewelry described above, the base metal is a metal such as gold, platinum, silver, copper, or an alloy of these metals, and the metal plating layer is ruthenium, rhodium, palladium, platinum , silver, copper, or at least one of alloys of these metals. The precious metal jewelry of the present invention can express many different color tones and/or elegance according to the selection of the material of the base metal and the metal plating layer, and the lamination order of the metal plating layer. The metal can conduct electricity, and, for example, when combined with a precious metal, the excellence as precious metal jewelry may be exhibited.

In addition, in the precious metal jewelry of the present invention, the above different light reflection regions were made into a fine linear shape. The linear metal plating layer and the linear base metal appear alternately or at predetermined intervals, and the lengths of the lines are different. Since the lines formed on the surface of the precious metal jewelry have different depths, lengths, and pitches in the line width direction made of the metal plating layer, the light reflection around the patterns is also different, and the color tone is unique compared to a pattern using a mask with an overly certain shape. can be expressed In particular, when ruthenium is used for the metal plating layer, the precious metal jewelry can express a pretty pattern in which the gold color of the base metal and the black color of the ruthenium made of the metal plating are mixed.

Further, in the precious metal jewelry of the present invention, in the above-mentioned precious metal jewelry, the metal plating region, the glossy region, and the different light reflection regions are formed on a curved surface rather than a flat surface. The curved surface includes a concave surface, a convex surface, and a combined surface of concave and convex surfaces.

In addition, the precious metal jewelry of the present invention has a pattern in which different light reflection regions formed of the luster region, the metal plated region surrounding the luster region, and the fine linear shape surrounding the periphery of the metal plated region are combined, for example, animal hair or Or you can do it with a leopard print.

Further, in the precious metal jewelry of the present invention, ceramics, glass, or synthetic resin is used for the base in the above-mentioned precious metal jewelry. On the base made of ceramics, glass, or synthetic resin, a base metal layer and a metal plating layer are formed. The base metal layer and the metal plating layer, by forming thick electroless plating, the same pattern as the precious metal jewelry according to the manufacturing method can be achieved by polishing.

In addition, in the method for manufacturing precious metal jewelry of the present invention, a pattern is formed by a noble metal made of a base metal and a metal plating layer formed on the noble metal. First, in the first step, a metal plating layer, for example, is formed with a uniform thickness on the entire surface of the noble metal phase made of the base metal. In the next step, after the metal plating layer is polished, the surface of the base metal is also partially polished, and at the same time, the surface of the base metal is polished until the surface of the base metal becomes a glossy surface. Then, in the next step, the metal plating layer and the base metal are reciprocated in a predetermined pattern at the tip of the rod-shaped polishing device having an abrasive such as diamond formed at the tip. The reciprocating motion is controlled to grind the base metal and/or the metal plating layer in a fine linear shape while changing the pitch in the length, depth, and line width direction differently.

According to the manufacturing method of precious metal jewelry of the present invention, since the precious metal jewelry is polished to the above depth and/or length, and pitches in different line width directions, the light reflection of the metal plating layer and the base metal is different, so that the Compared to the pattern, different light reflection areas are formed around the pattern indefinitely, and it is made of expensive precious metal jewelry.

In addition, the manufacturing method of precious metal jewelry of the present invention is driven by a driving device capable of driving the rod-shaped polishing mechanism in the x-axis direction, the y-axis direction, and the z-axis direction based on information stored in advance, the length, Fine linear images having different depths and different pitches in the line width direction are produced alternately or at predetermined intervals. The control device of the driving device is controlled by a surface to be processed detection sensor that detects the surface to be processed when the surface to be processed is not a flat surface. There are at least two types of the rod-shaped polishing mechanism, one for luster and one for diffuse reflection of light.

In addition, in the manufacturing method of the precious metal jewelry of the present invention, when different light reflection areas are produced, the width direction movement pitch of the rod-shaped polishing tool is changed. In the case of the widthwise movement pitch, the metal plating layer does not appear when the interval is narrow, and the metal plating layer appears when the interval is wide. When the metal plating layer is made of ruthenium, the different light reflective regions may alternately display the gold color of the base metal and the black color of the ruthenium by spacing the pitches at a predetermined interval. In addition, the linear pattern can express various color tones by changing the depth, length, and pitch interval, respectively.

Moreover, in the manufacturing method of the precious metal jewelry of this invention, ceramics, glass, or a synthetic resin is used as a base material. On the base made of ceramics, glass, or synthetic resin, a base metal layer and a metal layer are formed by any one of electroless plating, chemical or physical vapor phase growth, or sputtering. That is, on the non-metal member, at least two metal layers are formed, and the above-described polishing is performed. Since a metal layer or a precious metal layer is formed on the upper part or the entire surface of the base, it is possible to produce a larger one than a ring, and a shiny one with almost the same degree of pattern or luster as that made of precious metal and metal plating layer can be produced.

(Example)

Fig. 1 (A) is a cross-sectional view for explaining an example in which a pattern is formed on a ring as an embodiment of the present invention, and Fig. 1 (B) is a perspective view. In FIG. 1A , the ring 11 is, for example, on the upper surface of the base metal 111 made of a metal such as gold, platinum, silver, copper, or an alloy of these metals, for example, gold or platinum, silver, copper, etc. At least one metal plating layer 112 made of a metal or an alloy of these metals is formed with a uniform thickness over the entire surface by plating without the use of a mask. The ring 11 shown in FIG. 1B shows an example of a pattern after the processing of the present invention is performed.

2 is an enlarged schematic diagram for explaining the state of manufacturing the pattern of the present invention. In FIG. 2 , on the upper surface of the base metal 111 , a plating layer formed with a uniform thickness on the entire surface, for example, a metal plating layer 112 made of 'ruthenium' is formed. The rod-shaped abrasive tool 12 is driven by an x-y-z-axis driving device based on the value of the surface position detection sensor for detecting the surface position of the ring 11, as will be described later. The rod-shaped abrasive tool 12 is a tool called, for example, a 'rooter' or a 'diamond bar', and has a thin tip and diamond grains are formed on its surface. The rod-shaped abrasive tool 12 for producing the luster has a round tip and has fine diamond grains formed therein.

The rod-shaped abrasive tool 12 is controlled based on predetermined information such that the linear depth, length, and pitch in the line width direction are different. For example, the rod-shaped polishing tool 12-1 has been polished to a depth reaching the base metal 111 . Next, the rod-shaped abrasive tool 12-2 has a predetermined pitch in the x-axis direction of the drawing (expanded - in fact, the spacing is often closer to each other, but the degree of the spacing can be arbitrarily selected as a design) After moving to), the state of being polished to reach the vicinity of the surface of the base metal 111 is shown. In addition, the rod-shaped abrasive device 12-3 moves in the x-axis direction of the drawing by a predetermined pitch, and then slightly polishes the surface of the metal plating layer 112 or the next position without grinding. move to The rod-shaped polishing mechanism 12-4 shows a state in which the base metal 111 is deeply polished after moving in the x-axis direction of the drawing by a predetermined pitch.

The rod-shaped polishing device 12 polishes the base metal 111 and/or the metal plating layer 112 in a linear shape to a desired depth, length and pitch. The linear polishing having different depths, lengths and pitches becomes various colors depending on the viewing angle, etc. due to different reflections depending on the color of the metal plating layer 112 , the color of the base metal 111 , or depth.

The example of the rod-shaped grinding mechanism shown in FIG. 2 is an example, and is delicately controlled by the said drive apparatus and the control apparatus.

3(A) to (C) are views for explaining an example of a ring polished by a rod-shaped polishing device as an embodiment of the present invention. In FIG. 3A , a metal plating layer 112 is formed on the upper surface of the base metal 111 to have a uniform thickness over the entire surface. 3B is, as shown in FIG. 2, the glossy areas 111-1 and 111-2 where the base metal 111 is exposed by the rod-shaped polishing tool 12 (for luster). is formed In addition, the metal plating region 112 is a region that is not polished at all by the rod-shaped polishing mechanism 12, and the metal plating layer is exposed. In addition, the different reflection areas 113 are areas in which the rod-shaped polishing device 12 is linearly polished by changing the depth, length, and pitch. FIG. 3C is a cross-sectional view taken along line AA of FIG. 3B , a region 113 having different linear depth, length and pitch and different light reflectivity, a glossy region 111-2, and It can be seen that there is a metal plating region 112 .

The base metal 111 is, for example, one selected from metals such as gold, platinum, silver, copper, and alloys of these metals. In addition, the metal plating layer 112, at least one of metals such as ruthenium, rhodium, platinum, palladium, silver, copper, and alloys of these metals is selected. The metal plating layer 112 may be formed as a multi-layer rather than a single layer. The said ruthenium and its alloy show the color whose main body is black. In addition, rhodium, platinum, palladium, or silver and the alloy of these metals show the hue mainly silver-white. These colors, even with the same silvery white color, have slightly different color tones depending on the material or combination of materials. . The base metal 111 and/or the metal plating layer 112 may include a combination of a noble metal or a metal other than the metal and the alloy.

In addition, on the metal plating layer 112, for example, a hard glass film or a synthetic resin film may be formed. The hard glass film or synthetic resin film is combined with the color of the base metal 111 and the color of the metal plating layer 112 by including a light color, and becomes a beautiful precious metal jewelry with abundant change. In particular, since the amount of light is different depending on the viewing angle, the color of the base metal and the color of the hard glass film appear to change in various ways depending on the viewing angle or the degree of reflection of the light in the light reflection region that is reflected differently. Also, in a modified example of the above embodiment, silver, copper, brass, or the like may be used instead of gold or platinum of the base metal 111 and the metal plating layer 112 . The silver, copper, and brass are easily changed in color due to oxidation of the surface.

4 is a view for explaining an example of a manufacturing method for producing the precious metal jewelry of the present invention. In FIG. 4 , a ring 11 to be machined is supported on the support rod 41 . In the ring 11, at least one metal plating layer 112 is formed on the entire surface of the gold base metal 111, for example. A desired portion of the ring 11 is in contact with a rod-shaped grinding mechanism 42 for grinding. The rod-shaped grinding mechanism (42) is fixed to a fixing device (43). The fixing device 43 is attached to a driving device 44 that is movable in the x-axis direction, the y-axis direction, and the z-axis direction.

In the x-y-z-axis direction pattern storage device 45, a desired shape is stored from a shape input device 46 capable of inputting a two-dimensional or three-dimensional shape. In addition, for the curved surface of the workpiece, it is necessary to change the movement of the rod-shaped grinding mechanism 42 in the x-axis direction, the y-axis direction and the z-axis direction. Accordingly, the workpiece surface position detection device 47 detects the position of the rod-shaped polishing tool 42 and sends information to the x-y-z-axis direction pattern storage device 45 . The rod-shaped polishing mechanism 42 can three-dimensionally produce the pattern shown in FIG. 3 by the apparatus corresponding to the three dimensions. For the reflective area different from the polished area of the workpiece, it is necessary to change the shape of the tip of the rod-shaped abrasive device 42 or the size of diamond grains.

As mentioned above, the embodiment of the present invention has been described in detail, but the present invention is not limited to the above embodiment. In addition, various design changes are possible within the scope of the present invention without departing from the matters described in the claims. The blocks in Fig. 4 are known or attainable by well-known electronic/information processing techniques. In addition, in the embodiment, although the curved ring has been described, it is of course also applicable to precious metal jewelry having a complex complex curved surface including a flat surface. Precious metal jewelry in this embodiment can be replaced with a base made of ceramics, glass, or synthetic resin. In addition, the precious metal jewelry of the present invention can produce articles with high reproducibility by using a jig to fix the workpiece, either by profile control or manually by a craftsman with a high level of skill. . In addition, although the precious metal jewelry of the present invention has been described with a ring as an example, it can be applied to objects having a flat and/or curved surface.

As described above, in the precious metal jewelry of the present invention, since the metal plating region, the glossy region, and the different light reflection regions are formed as a pattern, the pattern can be expressed without being too clear as in the prior art. . In addition, by changing the line length, depth, and pitch in the line width direction of the different light reflection regions, numerous combinations such as clear patterns and faint patterns are easily possible.

In addition, according to the manufacturing method of precious metal jewelry of the present invention, when processing the pattern on the base metal and/or the metal plating layer on the base metal, the precious metal jewelry has a change in the pitch in the linear depth, length and line width direction. Since regions with different light reflections can be processed, different light reflection areas are formed around the pattern in an uncertain way compared to the pattern produced by a mask because the light reflection of the metal plating layer and the base metal are different, which is expensive. It is produced as precious metal jewelry of

Claims (10)

A precious metal jewelry in which a pattern is formed by a noble metal made of a base metal and a metal plating layer formed on the noble metal,
a metal plating region in which the metal plating layer is exposed;
Polishing the metal plating area, a glossy area made of a glossy surface of the base metal;
Different light reflection regions in which light is reflected differently by grinding the metal plating layer and the base metal in a fine linear shape, and at the same time, by varying the depth and/or length of polishing the base metal and the metal plating layer;
Precious metal jewelry, characterized in that the metal plating region, the glossy region, and the different light reflection regions are formed as a pattern.
The method of claim 1,
The base metal is made of a metal such as gold, platinum, silver, copper, or an alloy of these metals, and the metal plating layer is a metal such as ruthenium, rhodium, palladium, platinum, silver, copper, or a metal of these metals. Precious metal jewelry, characterized in that it is made of at least one of alloys.
According to claim 1 or 2,
Precious metal jewelry, characterized in that the fine linear shape of the different light reflection regions is alternately or at a predetermined interval between a linear metal plating layer and a linear base metal.
4. The method according to any one of claims 1 to 3,
Precious metal jewelry, characterized in that the metal plating region, the glossy region, and the different light reflection regions are formed on a curved surface.
5. The method according to any one of claims 1 to 4,
Precious metal main, characterized in that it is composed of a pattern based on different light reflection areas comprising the luster area, the metal plating area surrounding the gloss area, and the fine linear shape surrounding the metal plating area Early.
6. The method according to any one of claims 1 to 5,
The base is porcelain, glass, or synthetic resin, and a base metal layer and a metal plating layer are formed thereon.
A method of manufacturing precious metal jewelry in which a pattern is formed by a noble metal made of a base metal and a metal plating layer formed on the noble metal, the method comprising:
forming a metal plating layer on the noble metal made of the base metal;
After grinding the metal plating layer, a step of polishing the surface of the base metal until the surface of the base metal becomes a glossy surface, and a predetermined reciprocating motion of a rod-shaped polishing device having an abrasive formed at the tip of the metal plating layer and the base metal, It is made in a process in which the depth of grinding the base metal and the metal plating layer is different at the same time as grinding in a fine linear shape,
The method for manufacturing precious metal jewelry, characterized in that the metal plating region, the glossy region, and the different light reflection regions are formed as a pattern.
7. The method of claim 6,
The fine linear length, depth, and pitch of the different light reflection regions are based on previously stored information, a driving device capable of being driven in the x-axis direction, the y-axis direction, and the z-axis direction, and the driving device of the driving device. A method for manufacturing precious metal jewelry, characterized in that it is formed by a control device, a surface to be processed detection sensor for detecting a surface to be processed.
7. The method of claim 5 or 6,
A method of manufacturing precious metal jewelry, characterized in that when manufacturing the different light reflective regions, a change in the movement pitch of the rod-shaped abrasive tool is provided.
8. The method according to any one of claims 5 to 7,
The base is made of ceramics, glass, or synthetic resin, and the base metal layer and the metal layer are formed on the base by any one of electroless plating, chemical or physical vapor growth, or sputtering. A method of manufacturing jewelry.

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