Method for preventing vulcanized rubber entering into jack

A technology of vulcanized rubber and jacks, which is applied to the parts of connection devices, the manufacture of contacts, and cable terminals, to achieve the effects of ensuring quality, prolonging service life, and improving electrical performance and reliability

Inactive Publication Date: 2008-06-25
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention solves the problem of the gap between the pin and the socket, and also plays a sealing role. After vulcanization, it is found that there is no glue in each socket, thereby improving the electrical performance and reliability of the plug.

Method used

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  • Method for preventing vulcanized rubber entering into jack
  • Method for preventing vulcanized rubber entering into jack
  • Method for preventing vulcanized rubber entering into jack

Examples

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0019] This embodiment takes the six-core plug used for underwater operations as an example to illustrate the method of preventing the vulcanized rubber from entering the socket during the vulcanization process, as follows:

[0020] 1. First, ring the socket 41 (see FIG. 4 ) and the housing 51 (see FIG. 5 ), and then apply primer.

[0021] 2. Put 6 O-rings 61 (see Figure 6) into the bottom of the left mold core positioning pin 31 one by one (see Figure 3).

[0022] 3. Put the jacks 41 that have been aired into each hole of the right mold core jack 21 one by one (see Figure 2).

[0023] 4. Install the shell 51 (see FIG. 5 ) onto the right mold core 2 .

[0024] 5. Put the left mold core 3 and the right mold core 2 together, and tap them tightly with a small copper hammer, so that the socket 41 and the O-ring 61 (the material is rubber) are close without gaps...

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Abstract

The invention discloses a method of preventing the vulcanized rubber entering the plug jacks. The plug jacks are installed in sequence on the right mold core, and then are installed on the casing body, the plug jacks and the left mold core are installed together, and then put into the lower mold of the die assembly, the upper mold is installed together, and finally preheated and vulcanized for molding, and an O-shaped ring which is made of elastic material and has smaller internal diameter size than the external diameter size of the positioning pin and also has smaller external diameter size than the external diameter size of the plug jack is put at the root part of the positioning pin of the left mold core. The adoption of the invention can solve the phenomenon of rubber entering caused by plug jacks due to the processing precision; the invention is applied to the vulcanization of a variety of underwater cable plugs with different core quantities, and also is applied to the vulcanization of the water cable plugs; as for the die assembly, the service life can be prolonged.

Description

technical field [0001] The invention relates to the underwater cable manufacturing technology, in particular to a method for preventing vulcanized rubber from entering into the socket of the underwater cable plug during thermal vulcanization. Background technique [0002] Prior art when making plug, is made up of mold (upper mold, lower mold) and left and right mold cores, housing, jack, through heating, pressurization, and through vulcanization within a certain period of time and make. The sockets in vulcanized plugs are prone to glue ingress. Due to the long-term use and wear of the left and right mold cores in the mold, the positioning accuracy has changed, that is, there is a gap between the bottom end surface of the positioning pin and the end surface of the socket, which causes the socket to loosen in the cavity along the axial direction. During vulcanization, when the gap exceeds a certain value, the rubber may enter the socket under high temperature and high pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R43/16H01R13/523H02G15/02
Inventor 周保德康守权
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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