(1) two plate mold, also known as single type mask, is a kind of the simplest of injection mold, it to the sub surface interface will be the mold is divided into two parts: moves the mold and the fixed mold. Part of the cavity in the dynamic model, the other part of the cavity in the fixed mode. Sprue on the fixed mould; shunt opened on the parting surface, mold, products and channels in the moving die, moving mould part is provided with a top out of the system.
(2) three plate mold or small inlet die, there are two sub surface mold is divided into three parts, than in the two increases the gate plate, for having a gate marks the occasion to products from around are not allowed, the mold into the gate, so called small inlet die, the die structure is complex. Start power with a mountain to play a screw or pull the board
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