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Automatic demoulding vulcanization molding die and manufacturing method for wire harness sealing ring with sugarcoated haws structure

A technology of vulcanization molding and automatic demoulding, which is applied to household appliances, other household appliances, household components, etc. It can solve problems such as broken or bent mold cores, cracked threading holes, and difficult demoulding, so as to improve product quality and Pass rate, easy installation and mold clamping, easy installation and replacement effects

Pending Publication Date: 2020-05-01
南京金三力高分子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the product is removed manually, it is easy to cause the threading hole to crack, which reduces the qualified rate of the product, and if the operation is improper, it is easy to break or bend the mold core, and may even cause the mold to be scrapped. At the same time, manual demoulding is used. , the demoulding efficiency is low, which reduces the production efficiency of the enterprise
[0004] To sum up, when using the existing vulcanization molding mold to produce the harness sealing ring, there are the following problems: the product is not easy to demould, it is easy to cause the threading hole to break, the product qualification rate is low, the mold core is easy to be damaged, and the production efficiency is low

Method used

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  • Automatic demoulding vulcanization molding die and manufacturing method for wire harness sealing ring with sugarcoated haws structure
  • Automatic demoulding vulcanization molding die and manufacturing method for wire harness sealing ring with sugarcoated haws structure
  • Automatic demoulding vulcanization molding die and manufacturing method for wire harness sealing ring with sugarcoated haws structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Prepare the rubber material, prepare the rubber material according to the quantity and size of the mold injection plug 241, the rubber material is composed of the following components in parts by weight:

[0063] 90 parts of nitrile rubber, 3 parts of high wear-resistant carbon black N330, 8 parts of semi-reinforcing carbon black N774, 12 parts of carbon black N990,

[0064] 4.5 parts of zinc oxide, 0.5 parts of stearic acid, 1 part of internal release agent WB222, 0.5 parts of antioxidant RD, 0.5 parts of antioxidant 4010NA, 8 parts of plasticizer W-260S, 15 parts of plasticizer Neo-T, 8 parts Parts of liquid nitrile rubber, 0.2 parts of accelerator TMTD, 2 parts of crosslinking agent PL300-7D, 5 parts of vulcanizing agent Chemmix TVCD-40 / G.

[0065] It is explained that the high wear-resistant carbon black N330, semi-reinforcing carbon black N774, and carbon black N990 adopt the national standard GB3778-2003; the internal release agent WB222 is the product model of ST...

Embodiment 2

[0070] The difference between this embodiment and embodiment 1 is that the filler consists of the following components in parts by weight:

[0071] 100 parts of nitrile rubber, 5 parts of high wear-resistant carbon black N330, 10 parts of semi-reinforcing carbon black N774, 14 parts of carbon black N990,

[0072] 5 parts of zinc oxide, 1 part of stearic acid, 3 parts of internal release agent WB222, 1 part of antioxidant RD, 1 part of antioxidant 4010NA, 10 parts of plasticizer W-260S, 20 parts of plasticizer Neo-T, 10 parts Parts of liquid nitrile rubber, 0.3 parts of accelerator TMTD, 2.5 parts of crosslinking agent PL300-7D, 7 parts of vulcanizing agent Chemmix TVCD-40 / G.

[0073] During vulcanization molding, the vacuuming time is set to 15 seconds, the number of deflation times is set to 4 times, the vulcanization temperature of the vulcanizer is controlled at 180°C, the vulcanization time is controlled at 12 minutes, and the vulcanization pressure is controlled at 20MPa....

Embodiment 3

[0075] The difference between this example and Example 1 and Example 2 is that the filler consists of the following components in parts by weight: 95 parts of nitrile rubber, 4 parts of high wear-resistant carbon black N330, 9 parts of semi-reinforcing carbon black N774, 13 parts of carbon black N990, 4.75 parts of zinc oxide, 0.75 parts of stearic acid, 2 parts of internal release agent WB222, 0.75 parts of antioxidant RD, 0.75 parts of antioxidant 4010NA, 9 parts of plasticizer W-260S, 17.5 parts of plasticizer Agent Neo-T, 9 parts of liquid nitrile rubber, 0.25 parts of accelerator TMTD, 2.25 parts of crosslinking agent PL300-7D, 6 parts of vulcanizing agent Chemmix TVCD-40 / G.

[0076] During vulcanization molding, the vacuuming time is set to 11.5 seconds, the number of deflation is set to 3 times, the vulcanization temperature of the vulcanizer is controlled at 170°C, the vulcanization time is controlled at 10 minutes, and the vulcanization pressure is controlled at 17.5MP...

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PUM

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Abstract

The invention discloses an automatic demoulding vulcanization molding die and a manufacturing method for a wire harness sealing ring with a sugarcoated haws structure, and belongs to the technical field of rubber product production. The vulcanization molding die comprises a lower die, a middle die, an upper die, a top die and a die core, wherein the lower die, the middle die, the upper die and thetop die are sequentially arranged from bottom to top, the die core is arranged on the lower die, the lower side of the upper die is provided with a die cavity, the upper side of the upper die is provided with an injection cavity, the die cavity communicates with the injection cavity through an injection hole, and the lower side of the top die is provided with an injection plug; after the lower die, the middle die, the upper die and the top die are matched, the die core can penetrate through the middle die and enter the die cavity, the top of the die core is inserted into the injection hole, and the injection plug is embedded into the injection cavity. According to the method, the wire harness sealing ring with the sugarcoated haws structure can be manufactured by adopting the vulcanization molding die. The wire harness sealing ring can be automatically demoulded after the wire harness sealing ring is vulcanized, a threading hole cannot be broken, the die core cannot be damaged, the product qualification rate is high, and the production efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of rubber product production, and in particular relates to an automatic demoulding and vulcanization molding mold for a wire harness sealing ring with a candied haws structure and a manufacturing method. Background technique [0002] The wire harness sealing ring with candied haws structure is an important part of the electrical connector. This product is used in ordinary electrical connectors and various special electrical connectors such as ultra-small, micro, high temperature resistance, ultra low temperature, underwater, anti-interference, separation and falling off, etc. Its main function is to fix the wiring harness and play the role of sealing. In order to fix and seal the wiring harness by the wiring harness sealing ring, the structure of the threading hole is usually a candied haws shape. For example figure 1 As shown, it is a wire harness sealing ring 100 with a three-hole candied haws structure. ...

Claims

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Application Information

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IPC IPC(8): B29C33/30B29C33/44B29C35/02B29L31/26
CPCB29C33/303B29C33/444B29C35/02B29L2031/26
Inventor 芮巧红李香李斌张小芹
Owner 南京金三力高分子科技有限公司
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