WALL THICKNESS ADJUSTING METHOD AND DEVICE IN PARISON MOLDING APPARATUS

摘要

PURPOSE: To prevent that operation becomes impossible by discharging the molten resin entering split ring parts. CONSTITUTION: The operation impossibility of respective split ring parts 22 is prevented by discharging the molten resin entering the split ring parts 22 through the discharge passage 100 formed between an annular groove 21 and the split rings 22.