| 摘要 |
<p>PURPOSE:To improve the efficiency in a briquette manufacturing stage by charging a raw material to a hopper while metallic scraps are subjected to press forming by an upper punch, plugging up the lower end of a die by the upper end of a lower punch after the completion of the press forming and starting the charging of the raw material. CONSTITUTION:A die 9 of a cylindrical shape integrally fixed with a hopper 14 having a reversed truncated circular shape is lowered and its lower end is plugged by the upper end of a lower punch 8 provided projectingly in the center of the lower par tin the body of a press forming apparatus. Next, metallic scraps A are charged to the die 9 via the hopper 14, and an upper punch 17 piercing through the hopper 14 is lowered. The tip of the upper punch 17 is fitted in the die 9, and during the press forming of the metallic scraps A, the following metallic scraps A'' are charged to the hopper 14. Thus, after the forming of the metallic scrap briquettes A', the die 9 is ascended and the briquettes A' on the lower punch 8 are fed out by a delivering cylinder apparatus 18. Next, before the lower end of the upper punch 17 is pulled out from the upper end of the die 9, the lower end of the die 9 is plugged by the upper end of the lower punch 8, and the above following metallic scraps A'' are started to charge from the hopper 14 into the die 9. In this way, the solidifying time of the metallic scraps A and the feeding time of the metallic scraps A'' are superposed to improve the efficiency.</p> |
