HOLLOW INJECTION MOLDING METHOD AND APPARATUS

摘要

PURPOSE: To simply adjust the supply timing and pressure of pressurized gas corresponding to a pressure introducing position or a mold when pressurized gas is introduced into one mold under pressure from a plurality of places or introduced into each of a plurality of molds arranged side by side under pressure. CONSTITUTION: Pressurized gas is supplied to the pressure introducing side accumulator 2 connected at every pressurized gas pressure introducing means 1 from one gas compressor 3 and, after the pressurized gas having pressure determined at every pressure introducing side accumulator 2 is accumulated, the pressurized gas is supplied to the pressurized gas pressure introducing means 1 in predetermined timing from the pressure introducing side accumulator 2.