模具组成简介(英文版)(doc 6页)

模具组成简介内容提要：
Sprue Lock Pins
A pin has the edge of which is undercut to pull a part in mold opening and remove a sprue from a sprue bush.
After mold opening, this pin will function as an ejector pin and ejects the sprue from a aprue bush. Also it releases gas contained in molten plastic.
Stop Pins
A stopper installed to keep an ejector plate horizontal or prevent the ejector plate from retreating too far and damaging a core adaptor plate.
Ejector Guide Pins / Ejector Guide Bush
An ejector guide pin is also called a push plate guide pin and functions as a guide for sliding of an ejector plate.
Because an ejector guide bush slides, a hard material is used.
An ejector guide bush is also called a push plate guide bush. It is a cylindrical part used to determine the position by matching the ejector guide pin.

..............................