INJECTION NOZZLE AND METHOD FOR INJECTION MOLDING

摘要

A valve stem (26) is mounted in a nozzle body, with the valve stem moving from an open position retracted from the injection orifice (32) permitting the flow of resin to the mold cavity (40), to a closed position blocking the injection orifice (32) and preventing the flow of resin to the mold cavity, and to an advanced position within the gate nub (42) area to assist in the ejection of a molded part and clear the gate nub (42) area.