Development of two-step demoulding mechanism at side slide block of injection mould;

Using the self setting resin sand to clean the inner surface instead of sodium silicate sand can hugely shorten the time of whole demoulding course,improve work efficiency and decrease working strength.

In consideration of the difference between two parts,insert blocks on moving half and fixed half were combined;and the compounded core-pulling of slanted pushing rod,dog-leg cam and slide block was applied to finish the demoulding of internal and external side concave.

Three ways for demolding of plastic part with internal circle undercut;

Study of the Demolding Process in Hot Embossing of Polymer Microfluidic Chip;

The core-pulling and demolding mechanism of an injection mould for the deep cavity part were introduced.

The structure characteristics and technology requirement of the washer sliding were analyzed, designed the injection mold with an ordinary injection system and three layers, solved the problem of automatic demould, the die structure and working process were introduced, practical production showed the die is safe and reliable, and it improved manufacturing efficiency.

By the analysis of the demoulding failure of the side slide of the injection mould andreferring to the principle of ejector pins moving, ejector pins were added in the side slide and thestructure of the ejector pins was improved.