| 摘要 |
PURPOSE:To release a molded article easily from a mold without leaving a superfluous material to it by a method wherein, after molding, the pin for a shaft bearing hole is removed from a molded article and the molded article is released by an ejector pipe and an ejector pin from the movable die. CONSTITUTION:The pin 20 for casting the shaft bearing hole is protruded from the surface of the movable die 13 and butted to the surface of the fixed die 12 to inject, then, cure molding material and to mold the shaft bearing hole 15A. After molding, the pin 20 is removed from the molded article 15 and the molded article 15 is released by the ejector pipe 17 and the ejector pin 18 from the movable die 13. In this case a push seat need not be installed at all and mold release resistance also reduces. |
