METHOD FOR INJECTION-MOLDING RESIN MOLDING, TRANSPARENT OPTICAL ELEMENT, INJECTION MOLDING MACHINE, AND MOLD FOR INJECTION MOLDING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a method for injection-molding a resin molding which can smoothly and simply demold the resin molding from a mold in injection molding, a transparent optical element, an injection molding machine, and a mold for the injection molding machine. SOLUTION: In the method for injection-molding the resin molding which includes the mold release process of releasing the resin molding from the mold 12 of the injection molding machine, a cavity insert 37 having a forming surface for forming the resin molding is set in a movable mold 12, and the resin molding is released from the cavity insert 37 by oscillating the cavity insert 37 by an ultrasonic oscillator 71 during a mold opening operation or after mold opening. COPYRIGHT: (C)2008,JPO&INPIT