Alloy mold for manufacturing precious metal product

Abstract

The utility model discloses an alloy mould for manufacturing precious metal products, which relates to the technical field of alloy moulds and comprises a processing table, a turntable arranged in the middle of the processing table, a mould body arranged on the turntable, and a rotating component arranged on one side of the processing table and used for controlling the mould body to rotate. The mold body is composed of a shell, a lower mold and an upper mold, the shell and the rotary table are slidably clamped, the lower mold is fixedly arranged in the shell, an inner cavity is formed between the shell and the lower mold, and a vacuum exhaust assembly is arranged in the inner cavity; the production process is optimized, defects are reduced, the production efficiency and the product quality are improved, and high innovativeness and adaptability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy molds, and more specifically, to an alloy mold for manufacturing precious metal products. Background Art

[0002] With the advancement of manufacturing technology and the improvement of product quality requirements, alloy molds have gradually become an indispensable key equipment in production. It not only determines the shape, size and precision of the final product, but also has a direct impact on production efficiency, product quality and production costs.

[0003] The manufacturing of precious metal products (such as gold, silver, and platinum) typically requires extremely high precision, surface finish, and internal density. These products are widely used in jewelry, electronic components, and high-end manufacturing, and their production processes must meet stringent technical requirements. However, the traditional manufacturing process of precious metal products often faces challenges and problems.

[0004] During the traditional casting process of precious metal products, residual air or volatile substances in the liquid metal can easily lead to the formation of pores and bubbles, resulting in internal defects in the casting. These defects not only affect the product's appearance but also lead to reduced strength and increased brittleness, which in turn affect the product's service life and performance. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to solve the problems raised in the above background technology.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] An alloy mold for manufacturing precious metal products, comprising:

[0008] A processing table, wherein a turntable is provided in the middle of the processing table, a mold body is provided on the turntable, and a rotating assembly for controlling the rotation of the mold body is provided on one side of the processing table;

[0009] The mold body consists of an outer shell, a lower mold and an upper mold. The outer shell is slidably connected to the turntable, and the lower mold is fixedly arranged inside the outer shell. An inner cavity is provided between the outer shell and the lower mold, and a vacuum exhaust component is provided in the inner cavity.

[0010] As a preferred solution of the present invention, the rotating assembly includes a worm wheel fixedly mounted on the middle of the turntable, the processing table is located on one side of the turntable and is rotatably provided with a worm, the worm is meshingly connected with the worm wheel, the processing table is located on one side of the worm and is fixedly provided with a stepper motor, and the output end of the stepper motor is fixedly connected to the worm.

[0011] As a preferred solution of the present invention, the vacuum exhaust component includes a vacuum pump arranged in the middle of the inner cavity, a vacuum channel is opened in the middle of the lower mold, a plurality of vacuum channels are opened, and the vacuum channels are sufficiently small.

[0012] As a preferred solution of the present invention, a connecting groove for mutual engagement is provided between the lower mold and the upper mold, and a self-locking buckle is provided between the lower mold and the upper mold.

[0013] As a preferred solution of the present invention, cooling pipes are arranged around the outer surfaces of the lower mold and the upper mold, the two cooling pipes are slidingly connected, and the two cooling pipes are detachably arranged.

[0014] As a preferred solution of the present invention, a feed pipe is provided on the top of the upper mold, and the feed pipe is spirally arranged.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] Improve product quality: Through the combined design of the rotary casting system and the vacuum exhaust system, pores, bubbles and surface defects are effectively reduced, and the density, strength and surface finish of precious metal products are improved.

[0017] Optimize metal flow and temperature control: The spiral feed pipe ensures uniform flow of molten metal in the mold and controls the temperature, reducing defects caused by excessive flow or uneven cooling. It is particularly suitable for the production of complex thin-walled products.

[0018] Precise control and efficient cooling: Rotating components and cooling pipes ensure the rotation accuracy and cooling speed of the mold during the casting process, improving production efficiency and reducing the risk of deformation or cracking caused by thermal stress.

[0019] Stable structure and convenient disassembly and assembly: The self-locking buckle and connection groove design ensure the stability of the mold structure, while facilitating quick disassembly and maintenance, improving the convenience of mold use and production efficiency.

[0020] Extend mold life and improve versatility: The mold effectively controls temperature through cooling pipes to extend its service life; rotational casting and detachable structure make it suitable for the production of precious metal products of different sizes and types, improving the versatility of the mold.

[0021] Overall, this application optimizes the production process, reduces defects, improves production efficiency and product quality, and has strong innovation and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the connection structure between the housing and the lower mold of the utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the lower mold and the upper mold of the utility model.

[0025] Description of the numbers in the figure:

[0026] 1. Processing table; 2. Turntable; 3. Mold body; 31. Outer shell; 32. Lower mold; 33. Upper mold; 4. Rotating assembly; 41. Worm gear; 42. Worm; 43. Stepper motor; 5. Inner cavity; 6. Vacuum exhaust assembly; 61. Vacuum pump; 62. Vacuum channel; 7. Connecting groove; 8. Self-locking buckle; 9. Cooling pipe; 10. Feed pipe. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0028] Example

[0029] like Figure 1-3 As shown, an alloy mold for manufacturing precious metal products, comprising:

[0030] A processing table 1, a turntable 2 is provided in the middle of the processing table 1, a mold body 3 is provided on the turntable 2, and a rotating component 4 for controlling the rotation of the mold body 3 is provided on one side of the processing table 1 located on the turntable 2;

[0031] The mold body 3 consists of an outer shell 31, a lower mold 32 and an upper mold 33. The outer shell 31 is slidably connected to the turntable 2, and the lower mold 32 is fixedly arranged inside the outer shell 31. An inner cavity 5 is provided between the outer shell 31 and the lower mold 32, and a vacuum exhaust component 6 is provided in the inner cavity 5.

[0032] In a further embodiment, the processing table 1 is the basic structure of the entire device, providing a stable platform to ensure that the mold and other components are firmly installed and can withstand the forces generated during rotation and operation. The turntable 2 is responsible for carrying the mold body 3, and its main function is to drive the mold body 3 to perform centrifugal casting operations through rotational motion to ensure uniform metal flow during the centrifugal casting process; the mold body 3 is the core part for casting precious metal products, wherein the outer shell 31 is used to cover the main part of the mold body 3, protect the internal structure of the mold, and slide and engage with the turntable 2. The outer shell 31 ensures that the mold will not separate from the turntable 2 during rotation and can be easily installed and disassembled; the lower mold 32 is fixed inside the outer shell 31 to form the lower half of the mold. Its main function is to provide the basic structure for casting. When injected, the precious metal will first flow into the cavity of the lower mold 32. The upper mold 33 is opposite to the lower mold 32, and through cooperation, a complete mold cavity is formed to constitute the final shape of the precious metal product; the inner cavity 5 is located between the outer shell 31 and the lower mold 32, providing space for the vacuum exhaust component 6. The main function of the inner cavity 5 is to form a vacuum environment, help remove the air and volatile substances in the mold, reduce pores and surface defects, and improve the density and quality of the precious metal product; the vacuum exhaust component 6 is installed in the inner cavity 5, and is responsible for extracting air and gas in the mold cavity during the casting process. By applying vacuum in the mold cavity, air retention is reduced and bubbles are prevented.

[0033] Specifically, the rotating assembly 4 includes a worm gear 41 fixedly mounted on the middle of the turntable 2, and the processing table 1 is rotatably provided with a worm 42 on one side of the turntable 2. The worm 42 is meshed with the worm gear 41, and the processing table 1 is fixedly provided with a stepper motor 43 on one side of the worm 42. The output end of the stepper motor 43 is fixedly connected to the worm 42.

[0034] In a further embodiment, the worm wheel 41 is responsible for meshing with the worm 42. The function of the worm wheel 41 is to transmit the rotational motion of the worm 42 to the turntable 2, so that the turntable 2 rotates. The function of the worm 42 is to transmit the rotational motion of the stepper motor 43 to the worm wheel 41, thereby controlling the rotation of the turntable 2. The stepper motor 43 and the output end of the worm 42 are fixedly connected to achieve synchronous motion, so that the rotation speed and angle of the mold can be controlled, making the centrifugal casting process more efficient, and can ensure the precise positioning of the mold when it stops, which is suitable for the manufacture of high-precision precious metal products.

[0035] Specifically, the vacuum exhaust component 6 includes a vacuum pump 61 arranged in the middle of the inner cavity 5, and a vacuum channel 62 is opened in the middle of the lower mold 32. There are multiple vacuum channels 62, and the vacuum channels 62 are small enough.

[0036] In a further embodiment, a vacuum pump 61 is installed in the middle of the inner cavity 5, and its main function is to provide a negative pressure environment inside the mold. By extracting the air in the mold cavity, the vacuum pump 61 can effectively reduce the generation of bubbles during the casting process and avoid pores and surface defects inside the product. The vacuum channel 62 is a series of small channels opened in the lower mold 32. These channels are connected to the vacuum pump 61 and serve to guide the air inside the mold to the vacuum pump 61; the design of the vacuum channel 62 is very fine, and the channel is opened very small to prevent the molten metal from entering these channels during casting, while also ensuring that the vacuum system can work effectively and quickly remove the gas in the mold cavity; the number of vacuum channels 62 is large, which can cover multiple key parts of the mold, ensuring that the air can be quickly discharged from all corners. This layout helps to evenly improve the vacuum effect of the entire mold and avoid gas residue in local areas.

[0037] Specifically, a connecting groove 7 for mutual engagement is provided between the lower mold 32 and the upper mold 33 , and a self-locking buckle 8 is provided between the lower mold 32 and the upper mold 33 .

[0038] In a further embodiment, the connecting groove 7 is a snap-fit ​​structure between the lower mold 32 and the upper mold 33. Through the design of the groove, the two parts can be tightly fastened. The design of the connecting groove 7 ensures the accuracy and stability of the upper and lower molds 32 when docking; the self-locking buckle 8 is a locking device used between the lower mold 32 and the upper mold 33 to ensure that the two parts remain tightly combined during the casting process.

[0039] Specifically, the outer surfaces of the lower mold 32 and the upper mold 33 are both surrounded by cooling pipes 9 , the two cooling pipes 9 are slidingly connected, and the two cooling pipes 9 are detachable.

[0040] In a further embodiment, the cooling pipe 9 is a cooling structure arranged around the outer surfaces of the lower mold 32 and the upper mold 33. Its main function is to quickly reduce the mold temperature by circulating a cooling medium (such as water or cooling oil) during or after the casting process, thereby preventing the mold from overheating and causing adverse effects on the metal product. This cooling method can accelerate the solidification process of precious metal products and reduce the cooling time after casting, thereby improving production efficiency. At the same time, rapid cooling also helps to reduce mold damage or deformation caused by thermal stress and extend the service life of the mold.

[0041] The two cooling pipes 9 are designed to be connected by sliding connection, so that the cooling pipes 9 of the lower mold 32 and the upper mold 33 can be tightly combined to form a complete cooling circuit.

[0042] Specifically, a feeding pipe 10 is provided on the top of the upper mold 33, and the feeding pipe 10 is spirally arranged.

[0043] In a further embodiment, the spiral feed pipe 10 design can effectively extend the path of the molten metal from the inlet to the mold cavity, so that it maintains good fluidity when entering the mold. The spiral design helps to slow down the flow rate of the molten metal, avoid direct and rapid impact on the mold cavity, and prevent bubbles or voids caused by excessive flow of the molten metal.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. An alloy mold for manufacturing precious metal products, characterized in that: include: A processing table (1), wherein a turntable (2) is provided in the middle of the processing table (1), a mold body (3) is provided on the turntable (2), and a rotating component (4) for controlling the rotation of the mold body (3) is provided on one side of the processing table (1) located on the turntable (2); The mold body (3) is composed of an outer shell (31), a lower mold (32) and an upper mold (33); the outer shell (31) is slidably engaged with the turntable (2); the lower mold (32) is fixedly arranged inside the outer shell (31); an inner cavity (5) is provided between the outer shell (31) and the lower mold (32); and a vacuum exhaust component (6) is provided in the inner cavity (5).

2. The alloy mold for manufacturing precious metal products according to claim 1, characterized in that: The rotating assembly (4) includes a worm wheel (41) fixedly mounted on the middle of the turntable (2); the processing platform (1) is located on one side of the turntable (2) and is rotatably provided with a worm (42); the worm (42) is meshedly connected with the worm wheel (41); the processing platform (1) is located on one side of the worm (42) and is fixedly provided with a stepping motor (43); the output end of the stepping motor (43) is fixedly connected to the worm (42).

3. The alloy mold for manufacturing precious metal products according to claim 1, characterized in that: The vacuum exhaust component (6) includes a vacuum pump (61) arranged in the middle of the inner cavity (5), and a vacuum channel (62) is opened in the middle of the lower mold (32). There are multiple vacuum channels (62), and the vacuum channels (62) are sufficiently small.

4. The alloy mold for manufacturing precious metal products according to claim 1, characterized in that: A connecting groove (7) for mutual clamping is provided between the lower mold (32) and the upper mold (33), and a self-locking buckle (8) is provided between the lower mold (32) and the upper mold (33).

5. The alloy mold for manufacturing precious metal products according to claim 4, characterized in that: The outer surfaces of the lower mold (32) and the upper mold (33) are both surrounded by cooling pipes (9), and the two cooling pipes (9) are slidingly connected and can be detachably arranged.

6. The alloy mold for manufacturing precious metal products according to claim 1, characterized in that: A feeding pipe (10) is provided on the top of the upper mold (33), and the feeding pipe (10) is arranged in a spiral shape.

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