Secondary ejecting plastic mould of pre-positioning insert of guide post mechanism

The utility model discloses a secondary ejecting plastic mould of a pre-positioning insert of a guide post mechanism, which is mainly applied to plastic moulds which have high requirement on the accuracy of the inner dimension of products, but are lack of or cannot achieve completely accurate pre-positioning during the moulding process due to the particularity of product structure, belonging to the field of thermoplastic plastic forming moulds. The main internal structure of the mould is as follows: a fixed mould insert block, a movable mould insert block, a guide post, a sliding block, a sliding block seat, a wedge, an ejector sleeve, an ejector sleeve mould core, an upper ejecting rod, a lower ejecting rod, a clamp pin, an insert positioning pin, a pressing pin, a tapered positioning pin, an insert and the like are arranged. In the mould, the insert is pre-positioned through the interaction of the guide post and the sliding block for injection moulding, after the mould is opened, a product can be accurately