| 摘要 |
<P>PROBLEM TO BE SOLVED: To realize a molding die device for a molded body having a female screw part-fitted shaft hole and a molding method therefor. Ž<P>SOLUTION: Disclosed is a molding die device for a molded body having a female screw part-fitted shaft hole where raw material powder is packed into a die cavity and the raw material powder is subjected to compression molding by the upper punch side and the lower punch side, which comprises: a screw part 20a formed at the outer circumference of a core rod 20; the upper inner punch 42 formed by dividing the upper punch slidably contacted with the core rod in the upper punch side and the upper outer punch 40 surrounding the same; a female screw part 42a formed at the inner circumferential face of the upper inner punch and slidably freely fitted to the screw part 20a; rotating/driving means (44, 45 or the like) rolling in a state where the upper inner punch is supported; the lower inner punch 34 formed by dividing the lower punch slidably contacted with the core rod in the lower punch side and the lower outer punch 32 surrounding the same; a female screw part 34a formed at the inner circumferential face of the lower inner punch and freely slidably fitted to the screw part 20a; and rotating/driving means (35, 36 or the like) rolling in a state where the lower inner punch is supported. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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