Injection apparatus for an injection molding machine

摘要

An injection apparatus for an injection molding machine, which comprises a flange, a shut off nozzle, a charging cylinder and an injection cylinder connected to the flange, wherein the charging cylinder supplies the molten materials into the injection cylinder via theshut off nozzle; the flange is provided therein with an injection passage which interconnects with the injection cylinder such that the injection cylinder is capable of performing injection via the injection passage; the charging cylinder is provided therein with a charging screw at the front portion of which is provided with a charging shut off assembly capable of blocking up the inlet of theshut off nozzle; and the injection cylinder is provided with an injection screw.