CN111789356A

CN111789356A - Processing method for large-area jewelry

Info

Publication number: CN111789356A
Application number: CN202010815778.3A
Authority: CN
Inventors: 菲利普·普雷特
Original assignee: Beride Jewelry Guangzhou Co ltd
Current assignee: Beride Jewelry Guangzhou Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2020-10-20

Abstract

The invention discloses a processing method for large-area jewelry, which comprises the steps of firstly designing a jewelry processing drawing, then manufacturing a wax plate according to the processing drawing, then processing the wax plate into a silver plate through casting and reverse molding, reserving a loss position on the silver plate, then processing a metal product according to the silver plate, and finally embedding a jewel on the metal product to obtain a finished jewelry product. According to the processing method, the loss position is reserved on the silver plate, so that the dimension allowance is reserved in the subsequent processing link, and the jewelry can be polished to the designed dimension by performing die holding operation on the jewelry. Therefore, the finished jewelry product processed by the processing method has a flat and smooth surface, is bubble-free, is not concave-convex and meets the design size.

Description

Processing method for large-area jewelry

Technical Field

The invention relates to the field of jewelry processing, in particular to a processing method for large-area jewelry.

Background

With the development of society and the improvement of living standard of people, people show a more and more intensive trend to the interest of metal jewelry, and the requirements on the diversification and the exquisite degree of jewelry manufacture are higher and higher, so that manufacturers are promoted to continuously develop new processing technology to help to manufacture more exquisite metal jewelry with high efficiency to meet the pursuit of people.

However, in the process of processing jewelry, especially for jewelry with a large plane area, the appearance of the mold usually has the problems of sand holes, burrs, heavy edges, depressions, even fracture and the like due to shrinkage cavities and deformation generated by casting, and needs to be repaired and corrected. And after the ornament is repaired and corrected by means of die holding operation, the actual size of the ornament deviates from the designed size, so that the ornament is scrapped.

Therefore, how to improve the jewelry processing technology to make the finished surface of the processed jewelry smooth, bubble-free, unsmooth and in line with the design size is a technical problem to be solved urgently by the technical personnel in the field.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a processing method for large-area jewelry.

The technical scheme adopted by the invention for solving the problems is as follows:

a processing method for large-area jewelry specifically comprises the following steps:

step S1: designing a jewelry processing drawing;

step S2: manufacturing a wax plate according to a processing drawing, then processing the wax plate into a silver plate through casting and reverse molding, and reserving a loss position on the silver plate;

step S3: processing a metal product according to the silver plate;

step S4: and (5) inlaying the jewel on the metal product to obtain a finished jewelry product.

According to the processing method for the large-area jewelry, the loss bit is reserved on the silver plate, so that the dimension allowance is reserved in the subsequent processing link, and the jewelry can be polished to the designed dimension by performing die holding operation on the jewelry. Therefore, the finished jewelry product processed by the processing method has a flat and smooth surface, is bubble-free, is not concave-convex and meets the design size.

Further, the reserved loss bit in step S2 is to increase the design size of the central area of the silver plate.

Further, the design size of the central area of the silver plate is increased, specifically, the thickness which is 0.3-0.5 mm more than the design size is increased at the central position of the silver plate, and the thickness is gradually reduced along the peripheral direction.

Further, the step S3 specifically includes the following steps:

step S31: wrapping special rubber for a casting mold outside the silver plate, and taking out the silver plate after hot-press forming to obtain a rubber mold for wax injection;

step S32: performing wax injection operation on the rubber mold to obtain a wax mold;

step S33: assembling a wax pattern on a wax rod to form a wax tree, and pouring gypsum slurry on the wax tree; removing water in the gypsum through high-temperature heating, and simultaneously melting a wax mold in the gypsum to form a cavity of the jewelry model in the gypsum;

step S34: injecting the melted metal liquid into the gypsum mold to obtain a jewelry casting blank;

step S35: and carrying out film holding, welding and polishing operations on the jewelry casting blank to obtain a metal product.

Further, the stencil making in step S2 may be performed by manual engraving or 3D modeling through a computer and spraying with a wax sprayer.

Further, after the silver plate is manufactured in the step S2, the silver plate needs to be ground and polished.

Further, after the gem is inlaid in the step S4, polishing and electroplating operations are required.

In summary, according to the processing method for the large-area jewelry provided by the invention, the loss bit is reserved on the silver plate, so that the dimension allowance is provided in the subsequent processing link, and then the jewelry can be polished to the designed dimension by performing die holding operation on the jewelry. Therefore, the finished jewelry product processed by the processing method has a flat and smooth surface, is bubble-free, is not concave-convex and meets the design size.

Drawings

Fig. 1 is a processing flow chart for a large-area jewelry in an embodiment of the present invention.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, the invention provides a processing method for large-area jewelry, which specifically comprises the following steps:

step S1: designing a jewelry processing drawing;

in step S1, firstly, a jewelry designer manually draws the style in the idea, or draws the style through computer 3D software to obtain a jewelry processing drawing;

step S2: manufacturing a wax plate according to the processing drawing obtained in the step 1, then processing the wax plate into a silver plate through casting and reverse molding, and reserving a loss position on the silver plate;

in step S2, there are two ways to make the stencil, one is to carve the stencil by hand, i.e. to carve the model on the processing drawing by using paraffin; the other method is computer wax engraving, namely, the wax engraving is manufactured by combining computer 3D software with a wax spraying machine. After the stencil is cast and inverted to obtain the silver plate, the silver plate is required to be polished.

In addition, a loss bit is reserved on the silver plate, namely the design size of the central area of the silver plate is increased. In this embodiment, the design size of the central area of the silver plate is increased by 0.3 mm more than the design size at the central position of the silver plate, and the thickness gradually decreases along the peripheral direction.

Therefore, the loss bit is reserved on the silver plate, so that the size allowance is reserved in the subsequent processing link.

Step S3: processing a metal product according to the silver plate;

specifically, the step S3 includes the following steps: firstly, wrapping special rubber for a casting mold outside a silver plate, performing hot-press molding through a rubber molding press, naturally cooling to a state of not scalding hands, performing rubber film opening operation by using a scalpel, and taking out the silver plate to obtain a rubber mold for wax injection; and then, using a wax injection machine to perform wax injection operation on the rubber mold to obtain a wax mold, and sequentially welding the wax mold to a wax rod layer by layer along the circumferential direction according to a certain sequence to form the wax tree. After obtaining the wax tree, sleeving the planted wax tree together with the base plate on a stainless steel cylinder, and slowly injecting gypsum slurry along the inner wall of the steel cylinder; removing water in the gypsum through high-temperature baking, and simultaneously melting a wax mold in the gypsum to form a cavity of the jewelry model in the gypsum; finally, injecting the melted metal liquid into the gypsum mold to obtain a jewelry casting blank; and finally, performing film holding, welding and polishing operations on the jewelry casting blank to obtain a metal product.

Wherein, the temperature of the wax in the wax injection machine should be kept between 70 and 75 ℃, so that the fluidity of the wax liquid can be ensured. Due to shrinkage cavities and deformation caused by casting, the appearance of the mold usually has problems of sand holes, burrs, heavy edges, depressions, even breakage and the like, and needs to be repaired and corrected. Because the loss position is reserved on the silver plate, the metal product can be polished to the required design size in the mold holding process, and the metal product is ensured to have a smooth surface, no bubbles and no concave-convex.

Step S4: and (4) inlaying the jewel on the metal product, and performing polishing and electroplating operations to finally obtain a finished jewelry product.

In step S4, the diamonds need to be sorted by hand according to the jewelry design drawing, and picked out with proper color, shape and size for inlaying. In this embodiment, the gem is a broad concept of gem, meaning a mineral or rock that is colorful, hard, durable, rare, and can be cut, carved into jewelry and art, including natural and synthetic, and also including partially organic materials such as amber, pearl, coral, coal essence, etc.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. A processing method for large-area jewelry is characterized by comprising the following steps:

step S1: designing a jewelry processing drawing;

step S3: processing a metal product according to the silver plate;

2. The process of claim 1, wherein the reserved wear bits in step S2 are designed to increase the size of the central area of the silver plate.

3. The process of claim 2, wherein the increasing of the design size of the central region of the silver plate is performed by increasing the thickness of the central region of the silver plate by 0.3 to 0.5 mm more than the design size and gradually decreasing the thickness in the circumferential direction.

4. The machining method according to claim 1, wherein the step S3 specifically includes the steps of:

5. The process of claim 1, wherein the step S2 of making the stencil is performed by manual engraving or 3D modeling with a computer and spraying with a wax sprayer.

6. The processing method according to claim 1, wherein after the silver plate is manufactured in the step S2, the silver plate is subjected to a grinding and polishing process.

7. The method as claimed in claim 1, wherein polishing and electroplating operations are required after the gemstone is inlaid in step S4.