Patent ID: 9180621
Filing Date: 2015-11-10
Classification: B29C

Abstract:
1. A blow molding device comprising: a mold for blow molding; a blow nozzle to be inserted tightly into a mouth tube section of preform in a bottomed cylindrical shape when the preform is inserted into the mold; a pressurized liquid feeding unit, the blow molding device feeding a pressurized liquid from the pressurized liquid feeding unit into the preform through the blow nozzle to form a container into an expanded shape along a cavity of the mold; and a valve mechanism, at a downstream end of a feed channel for the liquid in the blow nozzle, configured to open and close the feed channel so that when the valve mechanism is in a closed state, the liquid circulates between the feed channel and the pressurized liquid feeding unit, and when the valve mechanism is in an open state, the pressurized liquid is fed through the feed channel into the preform.