IMPROVED MIXER APPARATUS AND METHOD FOR INJECTION MOLDING MACHINES

摘要

At least one flow channel (14) is provided in an injection molding machine housing (12) for resin flow, said flow channel having an inlet area (16) for receiving resin and an outlet area (18) for transferring resin to a mold cavity (20) or further downstream. An elongated shaft (36) or valve gate (74 ) extends in the flow channel (14). At least one spiral groove (46) is provide d in the flow channel facing the shaft (36) that decreases in depth towards th e outlet area, thereby mixing the molten resin.