Apparatus for cooling a preform in a cooling tube

摘要

An apparatus of cooling and solidifying a preform involves introducing a preform in a heated state released from an injection mold into a cooling tube having a bottom opening and an upper opening through which cooling air flows from said bottom opening to said upper opening, said bottom opening being provided with a fan for cooling air, and inserting a cooling core into the preform to place the cooling core in close contact therewith, the preform being forcibly cooled from interior and exterior thereof by cooling air flowing in a turning state between the preform and the cooling tube and a coolant supplied to said cooling core.