Injection stretch blow molding apparatus and method

摘要

An injection stretch blow molding method and apparatus wherein preforms are injection molded in a preform molding station and said preforms are carried to a blow molding station and containers are blow molded from the preforms retaining heat from when the preforms were injection molded. For enhancing the productivity it is provided to switch to either a container molding mode or a preform molding mode; and when the preform molding mode is switched to, on the way along a preform carrying path leading to the blow molding station, discharge the preforms being molded repeatedly in the preform molding station to off the preform carrying path.