Pushback pins

Before the mold closes again, the ejector plate with the ejector pins g is brought back to its initial position. Reaching the ejector backwards position is a standard prerequisite for the initiation of the closing movement. Pushback pins which are touching the parting surface outside the cavity ensure to avoid a cavity damage in case of a defect in the pushback mechanism. 

Ejector-return pin (return pin, surface pin, safety pin, and position pushback) n, A projection, usually one of several that push back the ejector assembly as the mold closes. 

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