3D printing resin embedded silica gel mold opening method

Abstract

The embodiment of the present application discloses a kind of 3D printing resin inserts silica gel open mould method, including steps: silver plate mould and 3D printing resin mould are mutually matched installation, obtain an installed silver plate mould and 3D printing resin mould connecting body;The silver plate mould and 3D printing resin mould connecting body are carried out silica gel open mould;The silver plate mould in the silica gel mould is demoulded, and 3D printing resin mould is embedded in the silica gel mould;Wax is injected into the silica gel mould, after waiting cooling, wax plate mould is formed in the position of original silver plate mould;The plaster open mould is carried out to the wax plate mould;The plaster mould is heated, and the wax plate mould is vaporized and volatilized;High-temperature molten liquid noble metal is injected into the plaster mould, and after waiting the liquid noble metal solidification, the finished product is obtained.The method of the embodiment of the present application can replace laser typewriter printing technology, greatly reduce the loss and economic loss caused by laser typewriter printing to make noble metal vaporize and volatilize.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of precious metal processing, and particularly relates to a 3D printing resin embedded silica gel mold opening method. BACKGROUND

[0002] Currently, the market generally adopts laser typing printing technology to process font patterns on precious metals. The font patterns formed by laser typing printing are very clear, but the following shortcomings exist: 1. Laser typing printing is generally shallow, and the depth is not enough, and the stereoscopic sense is not strong. 2. Laser typing printing can cause the evaporation of precious metals, resulting in waste and economic loss, and greatly increasing the production cost.

[0003] Therefore, the industry urgently needs a precious metal processing font pattern technology to replace laser typing printing, which overcomes the shortcomings of laser typing printing, such as insufficient depth, weak stereoscopic sense, and evaporation of precious metals, resulting in waste and economic loss. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art, and provides a 3D printing resin embedded silica gel mold opening method to solve the problems of insufficient depth, weak stereoscopic sense, and evaporation of precious metals in the prior art, resulting in waste and economic loss.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] The embodiment of the present application provides a 3D printing resin embedded silica gel mold opening method, comprising the following steps:

[0007] S1. The silver plate mold and the 3D printing resin mold are matched and installed with each other to obtain a silver plate mold and 3D printing resin mold connecting body;

[0008] S2. The silver plate mold and 3D printing resin mold connecting body is subjected to silica gel mold opening to obtain a silica gel mold containing the silver plate mold and 3D printing resin mold connecting body;

[0009] S3. The silver plate mold in the silica gel mold is subjected to demolding, and the 3D printing resin mold is embedded in the silica gel mold;

[0010] S4. Wax is injected into the silica gel mold, and after cooling, a wax plate mold is formed at the position of the original silver plate mold;

[0011] S5. The wax plate mold is subjected to gypsum mold opening to obtain a gypsum mold containing the wax plate mold;

[0012] S6. The gypsum mold is heated to make the wax plate mold vaporize and evaporate;

[0013] S7. Injecting high-temperature molten liquid noble metal into the gypsum mold, waiting for the liquid noble metal to solidify, and obtaining a finished product.

[0014] In the step S1, the silver plate mold is provided with a letter printing gap, the 3D printing resin mold is provided with a letter printing part corresponding to the letter printing gap, the letter printing part is provided with a protruding font pattern, the font pattern is located in the letter printing gap, and the letter printing part abuts the outer periphery of the letter printing gap to form a closed space.

[0015] In the step S1, the 3D printing resin mold is printed by a 3D printing technology, and the font pattern is selected according to customer requirements on a server side of a 3D printing device.

[0016] In the step S2, the following steps are included:

[0017] S21. Brushing a layer of release agent on the silver plate mold and the 3D printing resin mold connecting body;

[0018] S22. Silicon rubber pouring mold is performed on the silver plate mold and the 3D printing resin mold connecting body to obtain a silicon rubber mold containing the silver plate mold and the 3D printing resin mold connecting body.

[0019] In the step S3, the following steps are included:

[0020] S31. Separating the silicon rubber mold containing the silver plate mold and the 3D printing resin mold connecting body;

[0021] S32. Taking out the silver plate mold from the separated silicon rubber mold, and keeping the 3D printing resin mold in place;

[0022] S33. Merging the separated silicon rubber molds.

[0023] In the step S5, the following steps are included:

[0024] S51. Separating the silicon rubber mold containing the wax plate mold and the 3D printing resin mold;

[0025] S52. Taking out the wax plate mold from the separated silicon rubber mold, and performing edge trimming and polishing treatment on the wax plate mold;

[0026] S53. Performing gypsum mold opening on the edge-trimmed and polished wax plate mold, and obtaining a gypsum mold containing the wax plate mold by pouring mold method.

[0027] In the step S2, the temperature of the silicon rubber used for silicon rubber mold opening is 170-180°C.

[0028] In the step S4, the wax injection temperature is 73-76°C.

[0029] In the step S6, the gypsum mold is heated to 300-400℃.

[0030] In the step S7, the temperature of the liquid noble metal is 920-930℃.

[0031] Compared with the prior art, the 3D printing resin embedded silica gel mold opening method uses a silver mold to cooperate with a 3D printing resin mold, silica gel mold opening, demolding, and wax injection are performed to obtain a wax mold identical to the outer sample of the finished product, then the wax mold is subjected to gypsum mold opening and heating to make the wax mold vaporize and volatilize, and finally, the high-temperature molten liquid noble metal is injected into the gypsum mold, and the finished product is obtained after the liquid noble metal cools and solidifies, and the character printing depth is determined by the character pattern on the 3D printing resin mold and can be freely selected and adjusted. The method replaces the laser typing printing technology, greatly reduces the loss and waste caused by the vaporization and volatilization of noble metals by laser typing printing, and reduces economic losses.

[0032] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0034] Figure 1 The flowchart provided by the 3D printing resin embedded silica gel mold opening method of the present application;

[0035] Figure 2 The sub-flowchart provided by the 3D printing resin embedded silica gel mold opening method of the present application;

[0036] Figure 3 Another sub-flowchart provided by the 3D printing resin embedded silica gel mold opening method of the present application;

[0037] Figure 4 Another sub-flowchart provided by the 3D printing resin embedded silica gel mold opening method of the present application;

[0038] Figure 5 The silver mold structure diagram provided by the 3D printing resin embedded silica gel mold opening method of the present application;

[0039] Figure 6 A 3D printing resin mold structure schematic diagram provided for the 3D printing resin embedded silica gel mold opening method of the present application;

[0040] Figure 7 Another angle of the 3D printing resin mold structure schematic diagram provided for the 3D printing resin embedded silica gel mold opening method of the present application;

[0041] Figure 8 Silver plate mold and 3D printing resin mold cooperation relationship schematic diagram provided for the 3D printing resin embedded silica gel mold opening method of the present application. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship described based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0045] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0046] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connection", "connecting", "fixed", and the like should be interpreted broadly, for example, can be connected, or can be detachable, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0049] Please refer to Figures 1 to 4 , Figure 1 is a flowchart provided by the embodiment of the present application, as shown in Figure 2 , the method comprises the following steps S1 to S8.

[0050] S1. The silver plate mold 1 and the 3D printing resin mold 2 are matched and installed with each other to obtain an installed silver plate mold 1 and 3D printing resin mold 2 connecting body.

[0051] In an embodiment, please refer to Figures 5 to 8, the silver plate mold 1 is provided with a letter printing gap 11, the 3D printing resin mold 2 is provided with a letter printing part 21 corresponding to the letter printing gap 11, the letter printing part 21 is provided with a protruding font pattern 211, the font pattern 211 is located in the letter printing gap 11, and the letter printing part 21 abuts the outer periphery of the letter printing gap 11 to form a closed space with the letter printing gap 11, so that when the silver plate mold 1 and the 3D printing resin mold 2 are connected to perform silicone mold opening in the subsequent use, the silicone is tightly wrapped outside the silver plate mold 1 and the 3D printing resin mold 2, and will not enter the letter printing gap 11. Further, the 3D printing resin mold 2 is printed by 3D printing technology, and the font pattern 211 is selected according to customer requirements on the server side of the 3D printing device, which can meet various personalized needs of customers.

[0052] S2. The silver plate mold 1 and the 3D printing resin mold 2 are connected to perform silicone mold opening, and a silicone mold containing the silver plate mold 1 and the 3D printing resin mold 2 is obtained.

[0053] In this embodiment, the temperature of the silicone used for silicone mold opening is 170-180 DEG C, and after mold opening, mold pressing operation is further performed, so that the silver plate mold 1 and the 3D printing resin mold 2 and the silicone are more closely integrated together.

[0054] In an embodiment, please refer to Figure 2 The above step S2 can include steps S21-S22.

[0055] S21. A layer of mold release agent is applied to the silver plate mold 1 and the 3D printing resin mold 2.

[0056] In this embodiment, the mold release agent is specifically a silicone mold release agent, which is specially used to prevent the phenomenon that the silver plate mold 1 is not easy to take out from the mold cavity during demolding.

[0057] S22. The silver plate mold 1 and the 3D printing resin mold 2 are connected to perform silicone pouring mold, and a silicone mold containing the silver plate mold 1 and the 3D printing resin mold 2 is obtained.

[0058] S3. The silver plate mold 1 in the silicone mold is demolded, and the 3D printing resin mold 2 is embedded in the silicone mold.

[0059] In an embodiment, please refer to Figure 3 The above step S3 can include steps S31-S33.

[0060] S31. The silicone mold containing the silver plate mold 1 and the 3D printing resin mold 2 is separated.

[0061] Specifically, the separated silica gel mold can be cut in half to expose the connection between the silver mold 1 and the 3D printing resin mold 2.

[0062] S32. Remove the silver mold 1 from the separated silica gel mold, leaving the 3D printing resin mold 2 in place.

[0063] Further, after removing the silver mold 1, apply release agent to the exposed surface of the 3D printing resin mold 2 to prevent subsequent sticking.

[0064] S33. Combine the separated silica gel molds.

[0065] Specifically, the separated silica gel molds are spliced back to their original state and a certain pressure is applied to maintain a stable and tight splicing state.

[0066] S4. Inject wax into the silica gel mold and wait for it to cool. After cooling, a wax mold is formed at the original position of the silver mold 1.

[0067] In this embodiment, wax is injected into the silica gel mold after the silver mold 1 is removed. The wax fills the mold cavity left by the silver mold 1 in the silica gel mold and comes into full contact with the exposed surface of the 3D printing resin mold 2. Further, the injection temperature of the wax is 73-76°C.

[0068] S5. Gypsum mold is opened to the wax mold to obtain a gypsum mold containing the wax mold.

[0069] In one embodiment, referring to Figure 4 The above step S5 can include steps S51-S53.

[0070] S51. Separate the silica gel mold containing the wax mold and the 3D printing resin mold 2.

[0071] Specifically, the silica gel mold is separated again according to the separation marks of step S31.

[0072] S52. Remove the wax mold from the separated silica gel mold and perform edge trimming and polishing on the wax mold.

[0073] Specifically, the wax mold has the same overall shape as the silver mold 1, but the wax mold is filled at the lettering gap 11 compared to the silver mold 1, and has a recessed lettering corresponding to the lettering pattern 211 on the 3D printing resin mold 2. The wax mold is the same as the outer sample of the final product. After removing the wax mold, edge trimming and polishing are performed to remove the excess wax on the wax mold.

[0074] S53. The wax plate mold after trimming and polishing is subjected to gypsum mold opening, and a gypsum mold containing the wax plate mold is obtained by pouring mold method.

[0075] S6. The gypsum mold is heated to volatilize the wax plate mold.

[0076] In the embodiment, the gypsum mold is heated to 300-400 DEG C until the wax plate mold is completely volatilized. In other embodiments, other methods can also be used to remove the wax plate mold in the gypsum mold, such as separating the gypsum mold and demolding the wax plate mold therein.

[0077] S7. High-temperature molten liquid noble metal is injected into the gypsum mold, and the liquid noble metal is allowed to solidify to obtain a finished product.

[0078] In the embodiment, the temperature of the liquid noble metal is 920-930 DEG C, and after the injected liquid noble metal is naturally cooled, a noble metal product with the same shape as the wax plate mold and with recessed characters corresponding to the character pattern 211 on the 3D printing resin mold 2 is obtained.

[0079] Compared with the prior art, the 3D printing resin embedded silica gel mold opening method of the present application uses a silver plate mold in cooperation with a 3D printing resin mold, and through silica gel mold opening, demolding, wax injection, a wax plate mold with the same shape as the finished product is obtained, then the wax plate mold is subjected to gypsum mold opening and heating to volatilize the wax plate mold, and finally high-temperature molten liquid noble metal is injected into the gypsum mold, and after the liquid noble metal is cooled and solidified, a finished product is obtained, and the character depth is determined by the character pattern on the 3D printing resin mold and can be freely selected and adjusted. The method is used instead of laser character printing technology, greatly reducing the loss and waste and economic loss caused by volatilization of noble metal by laser character printing.

[0080] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for opening a mold of a 3D printing resin embedded silica gel, characterized in that, The method comprises the steps of: matching and installing a silver plate mold and a 3D printing resin mold to obtain a connected body of the installed silver plate mold and the 3D printing resin mold; silicone mold opening is performed on the connected body of the silver plate mold and the 3D printing resin mold to obtain a silicone mold containing the connected body of the silver plate mold and the 3D printing resin mold; demolding is performed on the silver plate mold in the silicone mold, and the 3D printing resin mold is embedded in the silicone mold; wax is injected into the silicone mold, and after cooling, a wax plate mold is formed at the original position of the silver plate mold; plaster mold opening is performed on the wax plate mold to obtain a plaster mold containing the wax plate mold; the wax plate mold is vaporized by heating the plaster mold; high-temperature molten liquid noble metal is injected into the plaster mold, and after the liquid noble metal solidifies, a finished product is obtained; in the step of matching and installing the silver plate mold and the 3D printing resin mold to obtain a connected body of the installed silver plate mold and the 3D printing resin mold, a lettering gap is arranged on the silver plate mold, a lettering part corresponding to the lettering gap is arranged on the 3D printing resin mold, a protruding font pattern is arranged on the lettering part, the font pattern is located in the lettering gap, and the lettering part abuts against the outer periphery of the lettering gap to form a closed space with the lettering gap; the step of performing silicone mold opening on the connected body of the silver plate mold and the 3D printing resin mold to obtain a silicone mold containing the connected body of the silver plate mold and the 3D printing resin mold comprises the following steps: a layer of demolding agent is applied to the connected body of the silver plate mold and the 3D printing resin mold; silicone pouring mold is performed on the connected body of the silver plate mold and the 3D printing resin mold to obtain a silicone mold containing the connected body of the silver plate mold and the 3D printing resin mold; the step of performing demolding on the silver plate mold in the silicone mold and embedding the 3D printing resin mold in the silicone mold comprises: the silicone mold containing the connected body of the silver plate mold and the 3D printing resin mold is separated; the silver plate mold is taken out of the separated silicone mold, and the 3D printing resin mold remains in the original position; the separated silicone molds are combined; the step of performing plaster mold opening on the wax plate mold to obtain a plaster mold containing the wax plate mold comprises: the silicone mold containing the wax plate mold and the 3D printing resin mold is separated; the wax plate mold is taken out of the separated silicone mold, and edge trimming and polishing are performed on the wax plate mold; the edge-trimmed and polished wax plate mold is subjected to plaster mold opening, and a plaster mold containing the wax plate mold is obtained by pouring mold method.

2. A method of opening a mold embedded with a 3D printing resin according to claim 1, characterized in that, The 3D printing resin mold is printed by 3D printing technology, and the font pattern is selected on the server side of the 3D printing device according to customer requirements.

3. The method of claim 1, wherein, In the step of performing silicone mold opening on the connected body of the silver plate mold and the 3D printing resin mold to obtain a silicone mold containing the connected body of the silver plate mold and the 3D printing resin mold, the temperature of the silicone used for silicone mold opening is 170-180°C.

4. The method of claim 1, wherein, The step of injecting wax into the silica gel mold, waiting for cooling, forming a wax mold in the original silver mold position, the wax injection temperature is 73-76 ℃.

5. The method of claim 1, wherein, The step of heating the gypsum mold, evaporating and volatilizing the wax mold, heating the gypsum mold to 300-400 ℃.

6. The method of claim 1, wherein, The step of injecting high-temperature molten liquid noble metal into the gypsum mold, waiting for the liquid noble metal to solidify, obtaining the finished product, the temperature of the liquid noble metal is 920-930 ℃.

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