Mold for forming micro-aperture sealing rubber ring and method for manufacturing finished rubber ring
A technology for sealing rubber rings and forming molds, which is applied in the manufacture of finished rubber rings and the field of forming molds for micro-aperture sealing rubber rings. It can solve the problems of reducing yield, increasing manufacturing cycle, and wear, so as to ensure sealing performance and reduce power. Loss, effect of simple mold structure
Inactive Publication Date: 2018-05-01
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology
The aperture of the existing sealing rubber ring cannot meet the sealing requirements of the micro-diameter optical fiber (900 μm in diameter), and when the diameter of the existing sealing rubber ring is less than 1mm, there are burrs on the inner circle, and there are wrinkles. Increased process complexity and workload, increased manufacturing cycle, and caused wear to the inner circle area of the rubber ring for sealing function, affecting the sealing effect of the rubber ring and reducing the yield
[0004] Since the diameter of the optical fiber is very small (diameter is 900μm), the surface of the apron needs to be smooth and wrinkle-free after demolding, and no burrs will be left on the inner surface of the inner circle. This requires fundamentally overcoming the existing process of polishing and deburring after demolding The inner circle area of the rubber ring used for sealing function is worn, and the sealing effect is not good.
Method used
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[0027] A molding die for a micro-aperture sealing rubber ring and its usage method of the present invention will be described in detail below with reference to the accompanying drawings, but the description is only exemplary and not intended to limit the protection scope of the present invention.
[0028] Such as figure 1 as shown, figure 1 It shows a three-dimensional schematic view of the molding die of the micro-aperture sealing rubber ring according to an exemplary embodiment of the present invention, the upper template 100 and the lower template 200 are in a separated state, wherein the molding mold of the micro-aperture sealing rubber ring includes the upper template 100 and the lower formwork 200 are two parts, the upper formwork 100 and the lower formwork 200 have corresponding threaded parts, so that the upper formwork 100 is screwed on the lower formwork 200 and a space is formed between the two, and the upper formwork 100 has two open tops. The positioning holes 10...
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Abstract
The invention discloses a mold for forming a micro-aperture sealing rubber ring. The mold includes two parts, an upper template and a lower template. The lower template includes positioning pins, parting surfaces of the lower mold, lower column sections, lower mold parts of the rubber ring forming cavity, runners and glue filling areas. The invention also discloses a method for manufacturing the sealing rubber ring and rubber ring by using the mold. The invention has the advantages of simple structure, convenient operation, safety and reliability, long service life, and the micro-aperture sealing rubber ring produced has the advantages of small pore size, long service life and high yield of one-time pressing, which can effectively improve the airtightness of the optical fiber through-the-wall connector and reduce the power loss of optical fiber transmission.
Description
technical field [0001] The invention belongs to the technical field of moulds, and in particular relates to a molding die for a micro-aperture sealing rubber ring used on a high-air-tight optical fiber through-the-wall connector in a high-vacuum environment, and a method for manufacturing a finished rubber ring using the molding die. Background technique [0002] The spacecraft needs to complete the vacuum thermal test in the ground space environment simulator, which can simulate the high vacuum thermal environment in space. High airtight multi-core optical fiber wall-through sealed connector is a key component that meets the application of optical fiber multi-parameter composite sensing technology and optical fiber communication technology in high vacuum environment. The main purpose is to ensure the lossless transmission of optical fiber signals while maintaining the simulation The high vacuum inside the device (less than 1.0×10 -4 Pa) and the vacuum degree inside the spa...
Claims
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IPC IPC(8): B29C43/36B29C43/02B29L31/26
Inventor 张景川王晶杨晓宁裴一飞冯尧王洪兴钱北行吕剑锋
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG