| 摘要 |
PURPOSE:To precisely perform the alignment of the upper and lower dies and to obtain a molded article high in concentricity by providing both a reed port of a material and a takeout port of a press-finished article to the side face of a drum die and positioning the upper side in the inside of the drum die through all processes of the press-molding. CONSTITUTION:Both a feed port 1a for a softened material and a takeout port 1b for a press-finished article are bored in the side face of a drum die 1. Further a water cooling jacket 1d is provided to the drum die 1 in the lower part of the above-mentioned feed port 1a and takeout port 1b. An upper die 6 is always positioned to the inside of the drum die 1 through all processes of the press-molding, and a lower die 5 is slid in the vertical direction in the inside of the drum die 1. The gap between the outer diameter of the upper and lower dies 5, 6 and the inside diameter of the drum die 1 is almost zero and the space of a nearly same shape as a press-finished article is formed when performing the clamping. When the molding is finished, the lower die 5 is descended and the lower die 5 and the press-finished article are cooled by the water cooling jacket 1d.
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