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Processing technology of silicon rubber mould

A mold manufacturing and silicone rubber technology, applied in the field of silicone rubber mold manufacturing technology, can solve problems such as material waste, achieve the effects of being less prone to damage, improving life, and overcoming quality problems of parts

Inactive Publication Date: 2007-08-01
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims at the shortage of material waste in the existing silicone rubber mold manufacturing technology, and provides a silicone rubber mold manufacturing process with low molding cost, easy demoulding of parts and high mold life

Method used

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  • Processing technology of silicon rubber mould
  • Processing technology of silicon rubber mould

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Experimental program
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Effect test

Embodiment

[0021] The technological process of the present invention is: sample prototype (can be manufactured by rapid prototyping technology)—type processing—paste clay or plasticine—build the mold frame—mix gypsum slurry—gypsum molding—remove clay—cast silicone rubber—silicone rubber vulcanization — Take out the prototype and process the cavity.

[0022] The specific process is as follows:

[0023] 1. As shown in Figure 2, carry out the necessary surface cleaning and smoothing treatment on the sample prototype 1, and fix the sample prototype on the flat plate 5, stick clay or plasticine 6 on the surface of the sample prototype, clay or plasticine 6 It can also be replaced by hot-melt materials, and the thickness of the paste is generally about 10mm. According to the overall size of the mold and the minimum wall thickness requirements, a mold frame 3 of a half mold is made on the flat plate 5 .

[0024] 2. As shown in Figure 3, mix gypsum powder and water evenly according to a certai...

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Abstract

The invention provides a silicone rubber mold manufacturing process, the process is: 1. labeling a layer clay or plasticine on one side surface of exemplar prototype mouldjoint and producing a template frame of semi-mold; 2. casting the gypsum slurry into template frame; 3. removing the clay or plasticine layer from exemplar prototype mouldjoint after the gypsum slurry congealing, and cleaning the cavity; 4. deploying the silicone rubber uniformly and debubbling at vacuum, pouring it in the cavity of gypsum and exemplar prototype surface, and sulfidizating the silicone rubber materials; 5. Removing the exemplar prototype and cleaning the cavity; 6. producing another semi-mold through the above steps. The process of the invention only cast one layer of silicone rubber material on the mold cavity surface, reduces silicone rubber material consumption, reduces the mold production costs, while the product is easy to be taken out from the thin-walled silicone rubber mold, it overcomes the product quality problem caused by the poured product by traditional silicon rubber mold is different be taken out in the demolding process, it improves the life of silicone rubber mold.

Description

technical field [0001] The invention relates to a silicon rubber mold manufacturing process for rapid development of new products and small batch production of samples. Background technique [0002] The silicone rubber mold manufacturing process is a relatively popular rapid mold manufacturing method. Due to the good flexibility and elasticity of the silicone rubber mold, it can produce parts with complex structures, fine patterns, no draft or even reverse draft, and deep grooves. The production cycle is short and the quality of the parts is high. Therefore, in The rapid production of single or small batch prototypes for new product development has attracted much attention. [0003] At present, the rapid manufacturing process of products based on rapid prototyping and silicone rubber rapid tooling technology is to use SLA, FDM, LOM or SLS technology to make product prototypes, and then turn them into silicone rubber molds, and pour two-component liquid resin into the mold. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/38B29C33/40
Inventor 王广春赵国群裴拂晓
Owner SHANDONG UNIV
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