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Composite injection moulding mould base on RP technology

A technology of injection mold and technology, which is applied in the composite injection mold and its manufacturing field based on RP technology, can solve the problems of high cost and long manufacturing cycle of metal injection mold, and achieve manufacturing cost reduction, economical mold processing technology, and shortened manufacturing time Effect

Inactive Publication Date: 2008-01-09
北京豪仪润世科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a fast and economical injection mold structure and manufacturing technology for the disadvantages of long manufacturing cycle and high cost of metal injection molds

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The composite injection mold based on RP technology of the present invention is composed of a metal mold base and a mold core, wherein the mold core is made of a liquid polymer composite material that can withstand high temperature and high pressure, and the metal mold base is a standard part of the injection mold. The liquid polymer composite material in this embodiment is a thermosetting epoxy resin material.

[0008] The manufacturing method is as follows: quickly manufacture the product prototype through rapid prototyping technology (RP), use liquid thermosetting epoxy resin material to replicate the mold cavity of the injection mold core, and after heat curing and processing, insert the mold core into the metal mold frame, and process the cooling channel and ejector device, and finally assemble it into an injection mold.

[0009] The rapid prototyping technology (RP) in this production method is an existing technology. After the liquid thermosetting epoxy resin mat...

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Abstract

The present invention belongs to the field of rapid prototyping (RP) and producing technology, and is especially one kind of compound injection molding mold based on RP technology and its making process. The injection molding mold consists of one mold core made of heat resisting and pressure resisting liquid compound polymer material, and assembled metal mold frame as standard unit. The making process includes RP to produce product prototype, copying mold cavity with liquid thermoset epoxy resin, hot curing and machining, embedding the mold core into metal mold frame, machining cooling water channel and liftout unit, and assembling to form the mold. The making process has low cost and short period.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping and manufacturing, and in particular relates to a composite injection mold based on RP technology and a manufacturing method thereof. Background technique [0002] Thermoplastics are injected into injection molds by plastic injection molding machines, and then cooled and solidified to form plastic parts. Since the injection mold works under high temperature and high pressure, the mold material needs to be made of metal (mold steel). Traditionally, it is manufactured by machining methods such as turning, milling, grinding, numerical control, electric spark, and chemical corrosion. The processing time is long and the cost is high. Contents of the invention [0003] The invention provides a fast and economical injection mold structure and manufacturing technology aiming at the disadvantages of long manufacturing cycle and high cost of the metal injection mold. [0004] The composite inje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/26B29C33/38
Inventor 韩礼华
Owner 北京豪仪润世科技有限公司