INJECTION APPARATUS OF INJECTION MOLDING MACHINE

摘要

PROBLEM TO BE SOLVED: To prevent the stagnation of a molten resin in an injection apparatus by making the molten resin easy to flow to make the same hard to stay at a constant position. SOLUTION: A plunger tip 5 for fixing a check valve 4, which prevents the back flow of a molding material, to a plunger 2 is provided and a twist groove 211 twisted with respect to the operation direction of the plunger 2 is formed to the plunger tip 5.