发明名称 DIE FOR DIE CASTING AND CASTING APPARATUS FOR DIE CASTING PROVIDED WITH DIE FOR DIE CASTING
摘要 <P>PROBLEM TO BE SOLVED: To provide a die for die casting and a casting apparatus for die casting provided with the die for die casting with which a formed body is easily separated from a core when the core is shifted in the direction crossing the shifting direction of a movable die after die-opening the die for die casting composed of the movable die and a fixed die. <P>SOLUTION: The die 1 for die casting, is provided with the fixed die 10, the movable die 20 and the core 30. The core 30 is shiftable in the direction crossing to the shifting direction of the movable die 20 and a part thereof is demarcated with a sprue 1b communicating with a cavity 1a. In the portion demarcated with the sprue 1b in the core 30, a pushing pin 31 with its tip part to be advanced/retreated to/from a runner at the tip part is arranged. The energizing force by a compressed spring 32 is acted to the pushing pin 31 and this pushing pin is retreated with casting pressure at the casting time, and shifted toward the sprue formed as the runner at the die-opening time after casting to separate the formed product 2 stuck to this portion of the core 30. <P>COPYRIGHT: (C)2004,JPO
申请公布号 JP2004148390(A) 申请公布日期 2004.05.27
申请号 JP20020318586 申请日期 2002.10.31
申请人 RYOBI LTD 发明人 MIZUKUSA YASUYUKI;ODA YOJI
分类号 B22D17/22;B22C9/06;B22D17/20 主分类号 B22D17/22
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