| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a molding die device having a female screw part-fitted shaft hole, and to provide a method for molding the molding die device. Ž<P>SOLUTION: In the molding die device having the female screw part-fitted screw hole, raw material powder is packed into a die cavity, and the raw material powder is subjected to compression molding by upper/lower punches. The device comprises: a screw part 20a formed at the outer circumference of a core rod 20; rotary driving means (22, 24) rolling the core rod in a state where screw feeding is possible; an upper inner punch 42 and an upper outer punch 40 obtained by dividing the upper punch slidingly contacted with the core rod in the upper punch side; a female screw part 42a formed at the inner circumferential face of the upper inner punch and fitted to the screw part 20a; rotary driving means (44, 45) turned in a state where the upper inner punch is supported; a lower inner punch 34 and a lower outer punch 32 obtained by dividing the lower punch slidingly contacted with the core rod in the lower punch side; a female screw part 34a formed at the inner circumferential face of the lower inner punch and freely slidingly fitted to the screw part 20a; and rotary driving means (35, 36) turned in a state where the lower inner punch is supported. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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