BLOW MOLDING APPARATUS WITH DOUBLE CYCLE FOR CORE RODS

摘要

This blow molding apparatus applies a coating to a core rod and then moves the core rod into an inactive position in which it travels through one cycle of the apparatus before being brought into interaction with a blowing and stripping station during a second cycle. This travel of the parison with the core rod in an inactive position allows time for the parison to be brought to a temperature for biaxial orientation before blowing the parison. The cooling can also be used to bring the parison to a condition at which a second coating can be applied over the parison to make a laminated container or other article. The preferred construction has the core rods hinged to an indexing table for movement between active and inactive positions.