利用滚珠、斜楔、滑块机构拉开定模板和浇口板并控制其拉开距离，从而达到自动生产目的。
Automation production was achieved by applying ball bearing, tapered wedge and slide block mechanism to pull off the fixed mould plate and gating plate, and control the pull off distance.
介绍了推杆自动切断浇口机构在热固性塑料注射模中的具体结构、 模具工作过程。
The structure, operating principle and action of mechanism of automatic sprue cutting by ejector pin in thermosetting plastics injection mould was described.
以某继电器的推动卡为例，介绍注射模上一种实用的自动切浇口结构。
Taking the card of certain relay as an example, introduced a practical structure witch can cut the gate automatically on the injection mold.
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