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    • 7. 发明公开
    • INJECTION MOLDING MACHINE
    • 注塑
    • EP1595680A4
    • 2008-06-11
    • EP03774199
    • 2003-11-25
    • SANJO SEIKI CO LTDNISHIZAWA TOSHIMICHI
    • NISHIZAWA TOSHIMICHI
    • B29C45/03B29C45/17B29C45/52B29C45/54B29C45/62
    • B29C45/54
    • An injection molding machine, wherein an injection pot (34) with an injection nozzle (33) and a side casting port (35) for casing a material into the pot are formed in a metal case (31), the tip part (37) of a plunger (36) disposed in the pot is formed in such as shape that the tip part (32) of the injection pot can be generally filled with the material when an injection is completed, a fitting part (38) pressingly cutting off a formed material by allowing a boundary part between a plunger body part (34a) and the tip part (37) to be fitted thereto is formed at a boundary part between an injection pot body part (34a) and the tip part (32), and when tip part of the plunger is inserted into the tip part of the injection pot, a clearance S is formed between the tip part (37) of the plunger and the tip part (32) of the injection pot and the casting port (35) is opened to the fitting part (38), whereby the injection molding machine capable of performing the assured pressing cutting off and excellent injection of plastic rubber in the injection pot and effective removal of residual rubber with less number of times of injection and providing an efficient production efficiency and an excellent strength can be provided.