Demoulding device specially for micro-injection forming instrument

Abstract

The invention discloses a demoulding device specially for a micro-injection forming instrument. The demoulding device mainly comprises a mould petal and a demoulding bed base, wherein the mould petal is a half of an axle bisection composite structure mould and provided with a mould cavity and a spline demoulding thimble; the demoulding bed base is provided with a mould petal positioning mounting structure and an ejection mechanism, an ejection component of the ejection mechanism is matched with the spline demoulding thimble, the mould petal positioning mounting structure is matched with the mounting part of the mould petal, and the mould petal is mounted on the demoulding bed base in a way that an assembling surface faces downwards and the mould cavity is suspended. The demoulding device disclosed by the invention is capable of well solving the problems that when a contractile tiny high polymer material melt is injected into the mould, a cooled spline is firmly embedded in the mould and is hard to demould; the high polymer material spline hard to demould can be safely and conveniently demoulded from the mould cavity while ensuring geometric shape, size precision and perfect appearance of the spline, any damage is avoided, and the reliable guarantee is provided for the high polymer material performance testing.

Description

technical field [0001] The invention relates to the processing and manufacturing technology of a polymer material performance test sample, and more specifically relates to a demoulding device used in conjunction with a micro-injection molding machine. Background technique [0002] The Haake (Haake) MiniJet micro-injection machine, represented by Thermo Fisher Corporation of the United States, is the smallest plunger-type micro-injection machine in the world launched in recent years, because it uses less material (polyethylene) Stretching spline 1.5g, impact spline 3.5g), fast heating speed, precise temperature control, convenient sample change and cleaning, etc. It is a rare and important instrument in the processing, research and teaching of polymer materials, and it is being used in many countries The high-end laboratory is mainly used in teaching and scientific research to prepare test specimens for the performance of polymer materials. [0003] Use the MiniJet micro-inj...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a spline demoulding device used in conjunction with a micro-injection molding machine to solve the difficulty in releasing the low-shrinkage polymer material performance test spline from the mold cavity, the spline geometry, dimensional accuracy and The appearance is difficult to guarantee, and the risk of injury to the demoulding operator is large, etc.

Images