Injection molding machine for producing plastic preforms has conical impeller in nozzle of plasticizing and injecting unit, open channels or other contoured features in surface of impeller causing it to rotate during injection

摘要

Injection molding machine for producing plastic preforms has a conical impeller (6) in the nozzle of the plasticizing and injecting unit. This has open channels or other contoured features in its surface, so that it rotates during the injection process.