Vacuum arc-extinguishing chamber silicone rubber soft package mold

Abstract

The invention discloses a vacuum arc-extinguishing chamber silicone rubber soft package mold, and relates to the technical field of molds. The device comprises a base, and a forming assembly is arranged on the surface of the base; the forming assembly comprises an upper die body connecting shell arranged on one side of the base, a middle die body connecting shell arranged at the bottom of the upper die body connecting shell and a lower die body connecting shell arranged at the bottom of the middle die body connecting shell. According to the vacuum arc-extinguishing chamber silicone rubber soft package mold, a sectional type modular structure is adopted, through independent design of the upper mold body connecting shell, the middle mold body connecting shell and the lower mold body connecting shell, the rapid fixing function of the connecting assembly is matched, convenient disassembly and local replacement of the mold are achieved, and a traditional integrated mold needs to be integrally scrapped when being locally damaged, so that the production cost is reduced. According to the design, the damaged die body is allowed to be independently maintained or replaced, the sectional type structure optimizes the assembly process, the production preparation time is shortened, the die is particularly suitable for rapid switching production of arc extinguish chambers of multiple specifications, and the production flexibility and economical efficiency are remarkably improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of molds, and particularly relates to a vacuum interrupter silicone rubber soft package mold. BACKGROUND

[0002] The vacuum interrupter silicone rubber soft package mold is a special mold for producing vacuum interrupter insulation protection components in power equipment, and its core function is to coat the surface of the interrupter with silicone rubber material through a mold forming process to form a flexible insulation layer resistant to high temperature, electric arc and aging. The mold is usually made of high-precision aluminum alloy or steel, has high-temperature resistance (above 200 DEG C) and low shrinkage, and the cavity structure is designed according to the three-dimensional size of the interrupter to ensure uniform filling of the glue without bubbles. The mold parting surface is designed precisely, equipped with an ejection system and positioning guide columns to support rapid demolding. Some advanced molds integrate a heating system to accelerate the vulcanization process of silicone rubber and improve production efficiency. The finished soft package layer has excellent electrical insulation performance (dielectric strength > 20 kV / mm) and mechanical sealing performance, and is widely used in medium and high voltage vacuum circuit breakers, load switches and other equipment to effectively improve the environmental adaptability and service life of the interrupter.

[0003] The current vacuum interrupter silicone rubber soft package mold adopts an integrated structure design, which has high overall strength, but has many inconveniences in actual use. Since the mold cannot be disassembled, the assembly and disassembly process is complicated, affecting production efficiency, and the entire mold needs to be replaced when a part is damaged, so the mold cannot be repaired or replaced individually, and the entire mold must be scrapped, resulting in a substantial increase in use cost.

[0004] Therefore, the application provides a vacuum interrupter silicone rubber soft package mold to solve the above problems. SUMMARY

[0005] The application aims to provide a vacuum interrupter silicone rubber soft package mold, which solves the problem of the current vacuum interrupter silicone rubber soft package mold being integrated, inconvenient to install and disassemble, and the entire mold needing to be replaced when a part is damaged, thereby greatly increasing the use cost.

[0006] To solve the above technical problems, the application is implemented by the following technical scheme.

[0007] The application is a kind of vacuum arc-extinguishing chamber silicone rubber soft package mold, including base, the surface of the base is provided with forming assembly; the forming assembly includes the upper die body connecting shell arranged on one side of the base, the middle die body connecting shell arranged on the bottom of the upper die body connecting shell, the lower die body connecting shell arranged on the bottom of the middle die body connecting shell, the silicone rubber is formed by the forming assembly; the surface of the base is provided with connecting assembly, the connecting assembly includes the connecting ring installed on one side of the upper die body connecting shell, the middle die body connecting shell and the lower die body connecting shell, the nut arranged on one side of the connecting ring, the die body fixing bolt threaded in the nut, a plurality of die bodies are quickly fixed by the connecting assembly.

[0008] The application is further provided that the upper die body connecting shell is provided with an upper die body fixing shell on one side, the middle die body connecting shell is provided with a middle die body fixing shell on one side, and the lower die body connecting shell is provided with a lower die body fixing shell on one side.

[0009] The application is further provided that the upper die body connecting shell and the upper die body fixing shell form a first forming cavity, the middle die body connecting shell and the middle die body fixing shell form a second forming cavity, and the lower die body connecting shell and the lower die body fixing shell form a third forming cavity.

[0010] The application is further provided that the upper die body fixing shell, the middle die body fixing shell and the lower die body fixing shell are all communicated with glue feeding holes on one side for injecting forming rubber, and the number of the glue feeding holes is three.

[0011] The application is further provided that the upper die body fixing shell, the middle die body fixing shell and the lower die body fixing shell are all provided with overflow holes on one side, and the number of the overflow holes is three for discharging air.

[0012] The application is further provided that an upper support ring is arranged between the upper die body connecting shell and the middle die body connecting shell, an upper fixing ring is arranged on one side of the upper support ring, a middle support ring is arranged between the middle die body connecting shell and the lower die body connecting shell, a middle fixing ring is arranged on one side of the middle support ring, a lower support ring is arranged on the bottom of the lower die body connecting shell, and a lower fixing ring is arranged on one side of the lower support ring.

[0013] The application is further provided that the upper support ring and the upper fixing ring are fixed by a first bolt, the middle support ring and the middle fixing ring are fixed by a second bolt, and the lower support ring and the lower fixing ring are fixed by a third bolt.

[0014] The application is further provided that the upper die body fixing shell, the middle die body fixing shell and the lower die body fixing shell are all fixedly connected with mounting rings on one side, and the die body fixing bolt penetrates through the mounting ring on one side.

[0015] The application is further provided that a fixing bolt hole is arranged on the bottom of the base.

[0016] The fixed bolt hole bottom is provided with a fixed screw, and the top of the fixed screw is threadedly connected with the fixed bolt hole.

[0017] The present application has the following advantages.

[0018] 1. The vacuum interrupter silicone rubber soft package mold of the present application adopts a segmented modular structure. Through the independent design of the upper mold body connecting shell, the middle mold body connecting shell and the lower mold body connecting shell, and the quick fixing function of the connecting assembly, the convenient disassembly and partial replacement of the mold are realized. When the traditional integrated mold is partially damaged, it needs to be scrapped as a whole, while the present design allows individual repair or replacement of the damaged mold body, greatly reducing the maintenance cost. The segmented structure optimizes the assembly process and shortens the production preparation time, especially suitable for quick switching production of multiple specifications of arc-extinguishing chambers, significantly improving the production flexibility and economy.

[0019] 2. Through the cooperative design of the glue feeding hole and the overflow hole, the glue can uniformly fill the cavity and effectively discharge air, avoiding air bubbles and glue defects, thereby improving the compactness and insulation performance of the silicone rubber soft package layer. The segmented cavity structure (first forming cavity, second forming cavity and third forming cavity) ensures the uniform distribution of the glue on the complex curved surface, so that the finished product has higher mechanical strength and arc resistance performance. The rigid connection of the support ring and the fixed ring enhances the stability of the mold, further ensures the forming precision, and makes the product meet the stringent requirements of high voltage grade (above 145kV) vacuum circuit breakers.

[0020] Of course, implementing any product of the present application does not necessarily require all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used for the embodiment description.

[0022] Figure 1 It is a perspective view of a vacuum interrupter silicone rubber soft package mold.

[0023] Figure 2 It is a perspective view of a vacuum interrupter silicone rubber soft package mold. Figure 1

[0024] Figure 3 It is a sectional view of the structure of a vacuum interrupter silicone rubber soft package mold.

[0025] Figure 4 It is an exploded view of the structure of a vacuum interrupter silicone rubber soft package mold.

[0026] Figure 5 It is a vacuum interrupter silicone rubber soft package mold​Figure 4 Bottom view of .

[0027] Figure 6 This is a schematic diagram of the connection between the middle support ring, lower mold connecting shell and lower support ring in a vacuum interrupter silicone rubber soft package mold.

[0028] Figure 7 This is a schematic diagram of the connection between the upper mold body connecting shell and the upper mold body fixing shell in a vacuum interrupter silicone rubber soft package mold.

[0029] In the accompanying drawings: 2. Base; 3. Molding assembly; 301. Upper mold connecting shell; 302. Middle mold connecting shell; 303. Lower mold connecting shell; 4. Connecting assembly; 401. Connecting ring; 402. Nut; 403. Mold fixing bolt; 404. Upper mold fixing shell; 405. Middle mold fixing shell; 406. Lower mold fixing shell; 5. Glue inlet hole; 6. Overflow hole; 7. Upper support ring; 8. Upper fixing ring; 9. Middle support ring; 10. Middle fixing ring; 11. Lower support ring; 12. Lower fixing ring; 13. Mounting ring; 14. Fixing bolt hole; 15. Fixing screw; 16. Vacuum interrupter; 17. Silicone rubber. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Example 1

[0032] See also Figures 1-7 The present invention is a vacuum interrupter silicone rubber soft package mold, including a base 2, and a molding component 3 is arranged on the surface of the base 2; the molding component 3 includes an upper mold body connecting shell 301 arranged on one side of the base 2, a middle mold body connecting shell 302 arranged at the bottom of the upper mold body connecting shell 301, and a lower mold body connecting shell 303 arranged at the bottom of the middle mold body connecting shell 302, and the silicone rubber is molded by the molding component 3; a connecting component 4 is provided on the surface of the base 2, and the connecting component 4 includes a connecting ring 401 installed on one side of the upper mold body connecting shell 301, the middle mold body connecting shell 302 and the lower mold body connecting shell 303, a nut 402 arranged on one side of the connecting ring 401, and a mold body fixing bolt 403 threadedly connected to the inside of the nut 402, and multiple groups of molds are quickly fixed through the connecting component 4.

[0033] Specifically: the forming assembly 3 is composed of an upper die body connecting shell 301, a middle die body connecting shell 302 and a lower die body connecting shell 303, and the layered forming of the silicone rubber 17 is realized through the segmented design, which makes the mold adapt to the complex shape of the vacuum interrupter, ensures the uniform coating of the silicone rubber, and facilitates the segmented disassembly and maintenance, improves the production efficiency, the connecting assembly 4 includes a connecting ring 401, a nut 402 and a die body fixing bolt 403, and the quick fixing and disassembly of multiple die bodies are realized through the threaded connection, the upper die body fixing shell 404, the middle die body fixing shell 405 and the lower die body fixing shell 406, and the columnar object on the top of the base 2 is the vacuum interrupter 16 to be processed, and it should be noted that the silicone rubber 17 is wrapped on the surface of the hard shell of the vacuum interrupter 16 in sections, and the silicone rubber 17 is at least three, corresponding to the upper die body connecting shell 301, the middle die body connecting shell 302 and the lower die body connecting shell 303.

[0034] Example 2

[0035] Please refer to Figures 1-7 On the basis of example 1, the upper die body connecting shell 301 is provided with an upper die body fixing shell 404 on one side, the middle die body connecting shell 302 is provided with a middle die body fixing shell 405 on one side, and the lower die body connecting shell 303 is provided with a lower die body fixing shell 406 on one side, the upper die body connecting shell 301 and the upper die body fixing shell 404 form a first forming cavity, the middle die body connecting shell 302 and the middle die body fixing shell 405 form a second forming cavity, and the lower die body connecting shell 303 and the lower die body fixing shell 406 form a third forming cavity, the upper die body fixing shell 404, the middle die body fixing shell 405 and the lower die body fixing shell 406 are all communicated with glue injection holes 5 on one side for injecting the forming rubber, the number of the glue injection holes 5 is three, the upper die body fixing shell 404, the middle die body fixing shell 405 and the lower die body fixing shell 406 are all provided with overflow holes 6 on one side, the number of the overflow holes 6 is three, and the overflow holes 6 are used for discharging air.

[0036] Specifically: the first forming cavity, the second forming cavity and the third forming cavity ensure the uniform filling of the silicone rubber in the forming process, avoid the generation of air bubbles, thereby improving the insulation performance and mechanical strength of the product, the glue injection holes 5 are uniformly distributed on one side of the upper die body fixing shell 404, the middle die body fixing shell 405 and the lower die body fixing shell 406, facilitating the injection of glue, ensuring that the glue can quickly and uniformly fill the entire cavity, improving the production efficiency and product quality, and the overflow holes 6 are located on the top of the upper die body fixing shell 404, used for discharging air and excess glue in the cavity, avoiding the generation of air bubbles or defects in the forming process, and ensuring the compactness and integrity of the silicone rubber soft layer.

[0037] Example 3

[0038] Please refer to Figures 1-7On the basis of embodiment 1 and embodiment 2, an upper support ring 7 is arranged between the upper die body connecting shell 301 and the middle die body connecting shell 302, the upper support ring 7 is provided with an upper fixed ring 8 on one side, a middle support ring 9 is arranged between the middle die body connecting shell 302 and the lower die body connecting shell 303, the middle support ring 9 is provided with a middle fixed ring 10 on one side, a lower support ring 11 is arranged at the bottom of the lower die body connecting shell 303, the lower support ring 11 is provided with a lower fixed ring 12 on one side, the upper support ring 7 and the upper fixed ring 8 are fixed through first bolts, the middle support ring 9 and the middle fixed ring 10 are fixed through second bolts, the lower support ring 11 and the lower fixed ring 12 are fixed through third bolts, the upper die body fixed shell 404, the middle die body fixed shell 405 and the lower die body fixed shell 406 are all fixedly connected with mounting rings 13 on one side, the die body fixed bolt 403 penetrates the mounting ring 13 on one side, the fixed bolt hole 14 is arranged at the bottom of the base 2, the fixed screw 15 is arranged at the bottom of the fixed bolt hole 14 and is threadedly connected with the fixed bolt hole 14 at the top.

[0039] Specifically, the upper support ring 7, the middle support ring 9 and the lower support ring 11 are connected with the corresponding fixed rings through bolts, the overall rigidity and stability of the mold are enhanced, meanwhile, the mold is convenient to disassemble and maintain, the service life of the mold is prolonged, the mounting ring 13 is fixed on the fixed shell to provide a mounting position for the die body fixed bolt 403, the firmness of the connecting assembly 4 is ensured, meanwhile, the assembly process of the mold is simplified, the fixed bolt hole 14 on the base 2 cooperates with the fixed screw 15 to realize firm connection with the base 2 and ensure the stability of the mold during the working process.

[0040] The working principle of the present application is as follows: according to the overall assembly drawing, each part is fixed on the vacuum interrupter which needs to be wrapped with silicone rubber, the joint on the glue injection tank is connected with the glue inlet hole 5, glue and material are injected into the mold body, the injection is stopped after the glue is filled (there is an overflow hole 6 at the upper end of each mold body, and the glue is discharged from the hole, indicating that the glue has been filled), the overall mold and the vacuum interrupter are placed in an oven with a set temperature of 180 DEG C for curing (for 1 hour), and then disassembled in the reverse direction (from top to bottom), and the soft wrapping layer is repaired and treated (excess burrs and flash are removed), and the treated product is qualified.

[0041] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A vacuum interrupter silicone rubber soft package mold, comprising a base (2), characterized in that: A molding component (3) is provided on the surface of the base (2); The molding assembly (3) comprises an upper mold body connecting shell (301) arranged on one side of the base (2), a middle mold body connecting shell (302) arranged at the bottom of the upper mold body connecting shell (301), and a lower mold body connecting shell (303) arranged at the bottom of the middle mold body connecting shell (302), and the silicone rubber is molded by the molding assembly (3); A connection assembly (4) is provided on the surface of the base (2), and the connection assembly (4) comprises a connection ring (401) installed on one side of an upper mold body connection shell (301), a middle mold body connection shell (302), and a lower mold body connection shell (303), a nut (402) provided on one side of the connection ring (401), and a mold body fixing bolt (403) threadedly connected to the inside of the nut (402), and multiple groups of mold bodies are quickly fixed through the connection assembly (4).

2. The vacuum interrupter silicone rubber soft package mold according to claim 1, characterized in that: An upper mold body fixing shell (404) is provided on one side of the upper mold body connecting shell (301), a middle mold body fixing shell (405) is provided on one side of the middle mold body connecting shell (302), and a lower mold body fixing shell (406) is provided on one side of the lower mold body connecting shell (303).

3. The vacuum interrupter silicone rubber soft package mold according to claim 2, characterized in that: The upper mold body connecting shell (301) and the upper mold body fixed shell (404) form a first molding cavity, the middle mold body connecting shell (302) and the middle mold body fixed shell (405) form a second molding cavity, and the lower mold body connecting shell (303) and the lower mold body fixed shell (406) form a third molding cavity.

4. The vacuum interrupter silicone rubber soft package mold according to claim 2, characterized in that: One side of the upper mold body fixed shell (404), the middle mold body fixed shell (405) and the lower mold body fixed shell (406) are all connected to a rubber inlet hole (5) for injecting molding rubber, and the number of the rubber inlet holes (5) is three.

5. The vacuum interrupter silicone rubber soft package mold according to claim 2, characterized in that: One side of the upper mold body fixed shell (404), the middle mold body fixed shell (405) and the lower mold body fixed shell (406) are all provided with overflow holes (6), and there are three overflow holes (6) for exhausting air.

6. The vacuum interrupter silicone rubber soft package mold according to claim 1, characterized in that: An upper support ring (7) is provided between the upper mold body connecting shell (301) and the middle mold body connecting shell (302), an upper fixing ring (8) is provided on one side of the upper support ring (7), a middle support ring (9) is provided between the middle mold body connecting shell (302) and the lower mold body connecting shell (303), a middle fixing ring (10) is provided on one side of the middle support ring (9), a lower support ring (11) is provided at the bottom of the lower mold body connecting shell (303), and a lower fixing ring (12) is provided on one side of the lower support ring (11).

7. The vacuum interrupter silicone rubber soft package mold according to claim 6, characterized in that: The upper support ring (7) and the upper fixing ring (8) are fixed by a first bolt, the middle support ring (9) and the middle fixing ring (10) are fixed by a second bolt, and the lower support ring (11) and the lower fixing ring (12) are fixed by a third bolt.

8. The vacuum interrupter silicone rubber soft package mold according to claim 2, characterized in that: One side of the upper mold body fixing shell (404), the middle mold body fixing shell (405) and the lower mold body fixing shell (406) are all fixedly connected to a mounting ring (13), and one side of the mold body fixing bolt (403) passes through the mounting ring (13).

9. The vacuum interrupter silicone rubber soft package mold according to claim 1, characterized in that: A fixing bolt hole (14) is provided at the bottom of the base (2).

10. The vacuum interrupter silicone rubber soft package mold according to claim 9, characterized in that: A fixing screw (15) is provided through the bottom of the fixing bolt hole (14), and the top of the fixing screw (15) is threadedly connected to the fixing bolt hole (14).

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