Vulcanization forming mold and manufacturing method of specially-shaped saturated nitrile rubber laminated cloth diaphragm

A technology of nitrile rubber and cloth diaphragm, which is applied in the field of rubber cloth products, can solve the problems of surface wrinkling and deformation, cloth breakage, etc., so as to improve the qualified rate, ensure uniformity, and avoid wrinkling and cloth breakage Effect

Inactive Publication Date: 2014-04-09
南京金三力橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the surface wrinkle deformation of the special-shaped saturated nitrile rubber cloth diaphragm and the problem of cloth fracture in the prior art, and provide a vulcanization molding die and manufacturing method for the special-shaped saturated nitrile rubber cloth diaphragm. method, the above-mentioned problems can be solved by adopting the technical scheme of the present invention

Method used

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  • Vulcanization forming mold and manufacturing method of specially-shaped saturated nitrile rubber laminated cloth diaphragm
  • Vulcanization forming mold and manufacturing method of specially-shaped saturated nitrile rubber laminated cloth diaphragm
  • Vulcanization forming mold and manufacturing method of specially-shaped saturated nitrile rubber laminated cloth diaphragm

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Embodiment 1

[0037] In conjunction with the accompanying drawings, a vulcanization molding die of a kind of special-shaped saturated nitrile rubber cloth diaphragm of the present embodiment includes a mold upper mold 1, a mold middle mold 2 and a mold lower mold 3 (such as figure 2 shown). The bottom of the mold upper mold 1 of the present embodiment is an outwardly protruding rotating body (such as image 3 shown), the side of the section of the rotating body includes the first arc segment 41 of the upper die, the second arc segment 42 of the upper die, the third arc segment 43 of the upper die, the fourth arc segment 44 of the upper die and the upper die arc segment 44 connected sequentially from top to bottom. As for the fifth arc segment 45, the bottom surface of the above-mentioned rotating body is a planar structure. The first arc section 41 of the patrix in the present embodiment, the second arc section 42 of the patrix, the third arc section 43 of the patrix, the fourth arc secti...

Embodiment 2

[0053] The vulcanization molding die of a kind of special-shaped saturated nitrile rubber cloth cloth diaphragm of the present embodiment, its basic structure is the same as embodiment 1, the difference is: the arc of the bottom arc section 21 of the trapezoidal hole side in the mold 2 The radius is 4mm. A kind of manufacturing method of the special-shaped saturated nitrile rubber cloth diaphragm of the present embodiment, its basic preparation steps are the same as embodiment 1, the difference is: the thickness of the fabric cloth 82 in step 1 is 0.2mm; The body 81 and the material blank of the outer diaphragm body 83 are composed of the following components in parts by weight: saturated nitrile rubber: 100 parts, carbon black: 70 parts, light calcium carbonate: 15 parts, zinc oxide: 8 parts, Liquid nitrile rubber: 10 parts, accelerator CZ: 1.5 parts, accelerator TT: 1.5 parts, sulfur: 0.5 parts, vulcanizing agent double 25: 5 parts, accelerator TAC: 4 parts; vulcanization te...

Embodiment 3

[0055] The vulcanization molding die of a kind of special-shaped saturated nitrile rubber cloth cloth diaphragm of the present embodiment, its basic structure is the same as embodiment 1, the difference is: the arc of the bottom arc section 21 of the trapezoidal hole side in the mold 2 The radius is 5mm. A kind of manufacturing method of the special-shaped saturated nitrile rubber cloth diaphragm of the present embodiment, its basic preparation steps are the same as embodiment 1, the difference is: the thickness of step 1 fabric cloth 82 is 0.4mm; 81 and the material blank of the outer diaphragm body 83 are composed of the following components in parts by weight: saturated nitrile rubber: 90 parts, carbon black: 50 parts, light calcium carbonate: 10 parts, zinc oxide: 5 parts, liquid Nitrile rubber: 5 parts, accelerator CZ: 0.5 parts, accelerator TT: 0.5 parts, sulfur: 0.3 parts, vulcanizing agent double 25: 2 parts, accelerator TAC: 1 part; vulcanization temperature control o...

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Abstract

The invention discloses a vulcanization forming mold and manufacturing method of a specially-shaped saturated nitrile rubber laminated cloth diaphragm, and belongs to the technical field of rubber laminated cloth products. The vulcanization forming mold comprises an upper die of the mold, a middle die of the mold and a lower die of the mold, wherein a rotary body protruding outwards is arranged at the lower part of the upper die of the mold; a trapezoidal hole in a vertical direction is formed in the middle die of the mold; an arc section is formed on the bottom of the side surface of the trapezoidal hole; a round table body protruding outwards is arranged at the upper part of the lower die of the mold; the periphery of the round table body of the lower die of the mold is sleeved with the middle die of the mold; the middle die of the mold is in clearance fit with the lower die of the mold; a concave die cavity is formed inside the round table body; the structure of the die cavity is matched with the rotary body of the upper die of the mold. The manufacturing method comprises the following manufacturing steps: preparing sizing materials of fabric cloth and a diaphragm body; pressing the fabric laminated cloth by the middle die of the mold, and tightening the fabric laminated cloth; and vulcanization and forming. By adopting the vulcanization forming mold and the manufacturing method thereof, the problems of wrinkling of the specially-shaped saturated nitrile rubber laminated cloth diaphragm product and fracture of the laminated cloth are solved, and the qualified rate of the specially-shaped saturated nitrile rubber laminated cloth diaphragm is increased.

Description

technical field [0001] The invention belongs to the technical field of rubber cloth products, and more specifically relates to a vulcanization molding mold and a manufacturing method of a special-shaped saturated nitrile rubber cloth diaphragm. Background technique [0002] The rubber cloth diaphragm is a rubber seal used in automobile filters. This product must have excellent oil resistance and dynamic rebound performance at low temperature. After the product is assembled and pressed, it must have heat resistance and resistance. Fatigue bending 100,000 times to maintain permanent sealing performance. In the current industry, due to the limitation of domestic production technology, the production efficiency of special-shaped saturated nitrile rubber cloth diaphragm is low, the scrap rate is high, and the production process often cannot meet the supporting use requirements of the automotive filter industry, resulting in special-shaped saturated The nitrile cloth diaphragm ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/00B29C70/34
CPCB29C70/345
Inventor 徐海潮李斌何志刚李香周樱
Owner 南京金三力橡塑有限公司
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