Low cost heating unit for plastic injection moulding - includes collar consisting of metal mould and embedded resistance elements, inner mantle surface, outer mantle, etc.

摘要

A heating unit for the plastifier cylinder and/or the nozzle of a a plastic injection moulding unit, includes a collar consisting of a metal moulding member and embedded resistance elements, an inner mantle surface, a concentric outer mantle, a metal tensioning band and a heating collar. The latter has an outer surface depression and has stamped out end sections. The deformable ends can be pressed into the depression using a threaded bolt. ADVANTAGE - The unit has reduced prodn. costs.