An electroformed integral hard gold jewelry and its manufacturing method

Abstract

The present invention discloses a hard gold jewelry formed by integral electroforming and a manufacturing method thereof. The present invention belongs to the technical field of jewelry, and particularly relates to a hard gold jewelry formed by integral electroforming and a manufacturing method thereof. The jewelry includes an outer shell and an inner shell. The outer shell is provided with an accommodating cavity, and the inner shell is arranged in the accommodating cavity and fixedly connected with the outer shell. Compared with the prior art, firstly, the present invention adopts integral electroforming to form in one time, overcoming the problem of the small hardness of pure 999 gold itself, and having the advantages of high purity and high hardness; secondly, the present invention adopts the inner and outer shell structure, reasonably utilizes the space inside the outer shell, and makes the structure of the product more stable; thirdly, the outer shell structures of the present invention are all fixedly connected in a way of being tangent to each other in pairs, making the structure of the product have beneficial stability; finally, no welding is required in the manufacturing process of the present invention, avoiding the problem that large-area welding cannot be carried out in the manufacturing process of hard gold jewelry.

Description

Technical Field

[0001] The present invention belongs to the technical field of jewelry, and particularly relates to a hard gold jewelry formed by integral electroforming and a manufacturing method thereof. Background Art

[0002] Traditional gold jewelry has the disadvantages of low hardness and easy deformation. To solve this problem, 3D hard gold jewelry has emerged on the market. 3D hard gold jewelry is a new variety that has emerged in the jewelry market in recent years and is mainly produced by the "electroforming" mode. It mainly improves the gold content, pH value, working temperature, content of organic light agent, stirring speed, etc. in the electroforming solution, greatly improving the hardness and wear resistance of gold. It has the advantages of high purity, good wear resistance, and strong plasticity.

[0003] The prior art discloses a production process of a hard gold jewelry with an application number of CN201510002793.5. The production process steps are as follows: making a model cavity of the product and coating silver oil on the cavity wall; electroplating a layer of copper on the model cavity and then electroforming gold until the model cavity is filled; removing the model and the electroplated copper to obtain a thousand - pure gold hard gold product; the obtained product is a finished product, a mold embryo, or a hard gold plate, and additional processing can be carried out. This process makes the product material hard gold and the parts are solid parts, so that the parts can better meet subsequent processing and ensure accuracy. The hard gold produced by this invention has high hardness and good wear resistance, but there are still problems that the components of 3D hard gold products cannot be joined into one body by welding process, with high production cost, long cycle, low efficiency, and inability to meet the needs of market changes. Summary of the Invention

[0004] To solve the above problems, an object of the present invention is to provide a hard gold jewelry formed by integral electroforming and a manufacturing method thereof. This jewelry is formed by integral electroforming in one step, overcoming the problem of low hardness of thousand - pure gold itself, and having the advantages of high purity and high hardness.

[0005] Another object of the present invention is to provide a hard gold jewelry formed by integral electroforming and a manufacturing method thereof. This jewelry adopts an inner - outer cavity structure, with a stable structure and reasonable utilization of the outer cavity space.

[0006] The last object of the present invention is to provide a hard gold jewelry formed by integral electroforming and a manufacturing method thereof. During the manufacturing process of this jewelry, welding is not required, avoiding the problem that large - area welding cannot be carried out during the manufacturing process of hard gold jewelry.

[0007] To achieve the above object, the technical solution of the present invention is as follows:

[0008] To achieve the above object, the technical solution of the present invention is as follows:

[0009] The present invention provides a hard gold jewelry formed by integral electroforming, which includes an outer shell and an inner shell.

[0010] The outer shell is provided with a receiving cavity, and the inner shell is arranged in the receiving cavity and fixedly connected to the outer shell.

[0011] Furthermore, one or more hollow-out grooves are provided on the outer shell, facilitating the user to clean the jewelry.

[0012] Furthermore, the outer shell is composed of an upper enclosing component, a middle enclosing component, a lower enclosing component, a top fastener, and a bottom fastener, which are connected in sequence and integrally formed.

[0013] Furthermore, the upper enclosing component is composed of six upper rings of the same size. The upper rings are connected end to end, and every two adjacent upper rings are tangentially and fixedly connected, which can achieve the stability of the jewelry structure and is not easily deformed by extrusion.

[0014] Furthermore, four arcs are arranged inside the upper ring. The two ends of the arc are fixedly connected to the upper ring, and every two adjacent upper arcs are tangentially and fixedly connected together.

[0015] Furthermore, the middle enclosing component includes six middle rings of the same size. The middle rings are connected end to end, and every two adjacent middle rings are tangentially and fixedly connected.

[0016] Furthermore, four middle arcs are arranged inside the middle ring. The two ends of the middle arc are fixedly connected to the middle ring, and every two adjacent middle arcs are tangentially and fixedly connected together.

[0017] Furthermore, the lower enclosing component includes six lower rings of the same size. The lower rings are connected end to end, and every two adjacent lower rings are tangentially and fixedly connected.

[0018] Furthermore, four arcs are arranged inside the lower ring. The two ends of the arc are fixedly connected to the lower ring, and every two adjacent arcs are tangentially and fixedly connected together.

[0019] The six upper rings are respectively tangentially connected to the six middle rings in one-to-one correspondence.

[0020] The six lower rings are respectively tangentially connected to the six middle rings in one-to-one correspondence.

[0021] The top fastener is simultaneously tangentially connected to the six upper rings.

[0022] The bottom fastener is simultaneously tangentially connected to the six lower rings.

[0023] Further, a support structure is provided on the outer container, and the support structure and the outer container form a fixing position for fixing the inner container in combination.

[0024] Further, the fixing position is provided with four convex columns. The convex columns are of a cylindrical structure and are evenly distributed in the accommodation cavity of the outer container. One end of the convex column is fixedly connected to the inner surface of the outer container, and the other end of the convex column is fixedly connected to the outer surface of the inner container. The four convex columns can fix the inner container from different directions, making the jewelry structure more stable and not prone to product deformation.

[0025] Further, the inner container is of a hollow spherical structure, with a light texture and comfortable to wear.

[0026] The present invention also provides a manufacturing method for a hard gold jewelry formed by integral electroforming:

[0027] Step 1: Drawing design: Draw a 3D drawing of the product;

[0028] Step 2: Carving the wax plate: Carve the wax plate with reference to the 3D drawing of the product, and polish and smooth the sprayed 3D data ceramic wax plate model;

[0029] Step 3: Wax plate assembly: Assemble the repaired 3D data ceramic wax plate. By using the method of implanting the inner container into the outer container, fix the inner container in the middle of the outer container with ceramic wax wire for mold opening;

[0030] Step 4: Making the rubber mold: Fix the assembled ceramic wax in the mold groove, pour the white silicone liquid into the mold groove, wait for the white silicone liquid to dry and fix, and separate the ceramic plate from the white silicone with a blade to form a rubber mold;

[0031] Step 5: Pouring wax into the rubber mold and finishing: Put the rubber mold into a waxing machine, pour wax into the mold. After cooling, take out the wax piece in the mold for wax repair;

[0032] Step 6: Applying silver oil: First, apply glue or nail polish to the connection between the outer container fixing column in the middle of the inner container and the positions that do not need to be electroformed with gold, which is convenient for the finished product to dissolve the support;

[0033] Step 7: Electroforming: Immerse the wax mold embryo in an electroforming cylinder filled with gold water for electroforming, and electroform it into hard gold by using an electric current;

[0034] Step 8: Mold cleaning: Take out the electroformed mold, clean off the glue or nail polish applied on the surface, and remove the wax on the surface of the embryo by using high temperature to obtain a semi-finished product;

[0035] Step 9: Surface treatment: Perform surface sandblasting, polishing, turning, and pattern engraving on the obtained semi-finished product to obtain the required finished product.

[0036] The advantages of the present invention are as follows: Compared with the prior art, firstly, the present invention adopts integrated electroforming and one-time forming, which overcomes the problem of the low hardness of pure 24K gold itself, and has the advantages of high purity and high hardness; secondly, the present invention adopts an inner and outer liner structure, which reasonably utilizes the space inside the outer liner, making the structure of the product more stable; thirdly, the outer liner structures of the present invention are all fixedly connected in a way that two by two are tangent to each other, making the product structure have beneficial stability; finally, the production process of the present invention does not require welding, avoiding the problem that large-area welding cannot be carried out in the production process of hard gold jewelry. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a front view schematic diagram of the present invention;

[0038] Figure 2 is a top view schematic diagram of the present invention;

[0039] Figure 3 is a bottom view schematic diagram of the present invention;

[0040] Figure 4 is a cross-sectional view schematic diagram of the present invention; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] To achieve the above objectives, the technical solution of the present invention is as follows:

[0043] See Figures 1-4 As shown, the present invention provides a hard gold jewelry formed by integrated electroforming. The jewelry includes an outer liner 1 and an inner liner 2. The outer liner 1 is provided with a receiving cavity 16, and the inner liner 2 is arranged in the receiving cavity 16 and fixedly connected to the outer liner 1.

[0044] In this embodiment, one or more hollow grooves are provided on the outer liner 1 to facilitate the user to clean the jewelry.

[0045] In this embodiment, the outer liner 1 is composed of an upper enclosing component 12, a middle enclosing component 13, a lower enclosing component 14, a top fixing member 11, and a bottom fixing member 15 that are connected in sequence and integrally formed.

[0046] In this embodiment, the upper enclosing component 12 is composed of six upper rings 121 of the same size. The upper rings 121 are connected end to end, and every two adjacent upper rings 121 are fixedly connected in a tangent manner, which can achieve the stability of the jewelry structure and is not easily deformed by extrusion.

[0047] In this example, four arcs 1211 are arranged inside the upper ring 121. Both ends of the arc 1211 are fixedly connected to the upper ring 1211, and every two adjacent upper arcs 1211 are tangentially and fixedly connected together.

[0048] In this example, the middle enclosing component 13 includes six middle rings 131 of the same size. The middle rings 131 are connected end to end, and every two adjacent middle rings 131 are tangentially and fixedly connected.

[0049] In this example, four middle arcs 1311 are arranged inside the middle ring. Both ends of the middle arc 1311 are fixedly connected to the middle ring 131, and every two adjacent middle arcs 1311 are tangentially and fixedly connected together.

[0050] In this example, the lower enclosing component 14 includes six lower rings 141 of the same size. The lower rings 141 are connected end to end, and every two adjacent lower rings 1411 are tangentially and fixedly connected.

[0051] In this example, four arcs 1411 are arranged inside the lower ring 141. Both ends of the arc 1411 are fixedly connected to the lower ring 141, and every two adjacent arcs 1411 are tangentially and fixedly connected together.

[0052] In this example, the six upper rings 121 are respectively tangentially connected to the six middle rings 131 in one-to-one correspondence.

[0053] In this example, the six lower rings 141 are respectively tangentially connected to the six middle rings 131 in one-to-one correspondence.

[0054] In this example, the top fastener 11 is simultaneously tangentially connected to the six upper rings 121.

[0055] In this example, the bottom fastener 15 is simultaneously tangentially connected to the six lower rings 141.

[0056] In this example, a support structure is arranged on the outer container 1. The support structure and the outer container 1 form a fixing position for fixing the inner container 2. In this example, four convex columns 17 are arranged at the fixing position. The convex columns 17 are of a cylindrical structure and are evenly distributed in the inner cavity 16 of the outer container. One end of the convex column 17 is fixedly connected to the inner surface of the outer container 1, and the other end of the convex column 17 is fixedly connected to the outer surface of the inner container 2. The four convex columns 17 can fix the inner container 2 from different directions, making the jewelry structure more stable and not prone to product deformation.

[0057] In this example, the inner liner is a hollow spherical structure, which is light in texture and comfortable to wear. Example 2: The present invention also provides a method for manufacturing a hard gold jewelry by integral electroforming:

[0058] Step 1: Drawing design: Draw a 3D drawing of the product;

[0059] Step 2: Carving the wax plate: Carve the wax plate with reference to the 3D drawing of the product, and polish the sprayed 3D data ceramic wax plate model;

[0060] Step 3: Wax plate assembly: Assemble the repaired 3D data ceramic wax plate. By using the method of implanting the inner liner into the outer liner, fix the inner liner in the middle of the outer liner with ceramic wax wire to carry out mold opening;

[0061] Step 4: Making the rubber mold: Fix the assembled ceramic wax in the mold groove, pour the white silicone liquid into the mold groove, wait for the white silicone liquid to air dry and solidify, and separate the ceramic plate from the white silicone with a blade to form a rubber mold;

[0062] Step 5: Injecting wax into the rubber mold and finishing the wax piece: Put the rubber mold into the waxing machine, inject wax into the mold. After cooling, take out the wax piece in the mold and repair the wax;

[0063] Step 6: Applying silver oil: First, apply glue or nail polish to the connecting outer liner fixing column in the middle of the inner liner and the positions that do not need to be electroformed with gold, which is convenient for the finished product to dissolve the support;

[0064] Step 7: Electroforming: Immerse the wax mold embryo in the electroforming tank filled with gold water for electroforming, and electroform it into hard gold by using electric current;

[0065] Step 8: Mold cleaning: Take out the electroformed mold, clean the glue or nail polish applied on the surface, and remove the wax on the surface of the embryo by using high temperature to obtain a semi-finished product;

[0066] Step 9: Surface treatment: Carry out surface sanding, polishing, turning and pattern carving on the obtained semi-finished product to obtain the required finished product.

[0067] The above are only the preferred embodiments of the present invention, and are not used to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A manufacturing method of an integral electroformed hard gold jewelry: characterized in that, The hard gold jewelry includes an outer shell and an inner shell. The outer shell is provided with a receiving cavity, and the inner shell is disposed within the receiving cavity. One or more hollow slots are provided on the outer shell. The inner shell is a hollow spherical structure. The method includes the following steps: Step 1: Drawing design: Draw a 3D drawing of the product. Step 2: Carving the wax plate: Carve the wax plate with reference to the 3D drawing of the product, and polish and grind the sprayed 3D data ceramic wax plate model. Step 3: Wax plate assembly: Assemble the repaired 3D data ceramic wax plate. Using the method of implanting the inner shell into the outer shell, fix the inner shell in the middle of the outer shell with ceramic wax wire to perform mold opening. Step 4: Making the rubber mold: Place the assembled ceramic wax into the mold groove and fix it. Pour the white silicone liquid into the mold groove and wait for the white silicone liquid to air dry and fix. Use a blade to separate the ceramic plate from the white silicone to form a rubber mold. Step 5: Pouring wax into the rubber mold and finishing the wax piece: Place the rubber mold into a waxing machine, pour wax into the mold. After cooling, take out the wax piece in the mold and perform wax repair. Step 6: Applying silver oil: First, apply glue or nail polish to the connecting outer shell fixing column in the middle of the inner shell and the positions that do not need to be electroformed with gold to facilitate the dissolution and support of the finished product. Step 7: Electroforming: Immerse the wax mold embryo into an electroforming tank filled with gold water for electroforming, and electroform it into hard gold using an electric current. Step 8: Mold cleaning: Take out the electroformed mold, clean off the glue or nail polish applied on the surface, and remove the wax on the surface of the embryo using high temperature to obtain a semi-finished product. Step 9: Surface treatment: Perform surface sandblasting, polishing, turning, and pattern engraving on the obtained semi-finished product to obtain the required finished product.

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