Importance

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Abstract

A powder press has a fixed plate secured to a frame and having mounted thereon stops which are adjustably movable up and down. The stops are in abutting contact with rotatable stop rods which are threadedly mounted to an intermediate plate carrying a floating punch and which receives downward thrust during the process of compaction. The stop rods are locked against rotation by locking members during compaction and released therefrom upon descent of ejector rods which press down the intermediate plate and a die plate at the time of the ejection of the compact. The released stop rods rotate about their own axes to permit the descent of the intermediate plate. The abutting stop rods and stops make no large space requirement, and their rigidity is high.

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First Claim