Control method for powder feed apparatus

Details Control method for powder feed apparatus Control method for powder feed apparatus

1998-03-13

2000-09-12

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264 405, B29C 3944

Patent

active

061173746

ABSTRACT:
A powder feed apparatus and a control method thereof for a powder molding press wherein in feeding powder from a hopper of the powder feed apparatus to a feeder slidably disposed on a die plate of the press proper and charging powder into a die in the die plate the feeder is electronically controlled to a correct position on the die. Powder is fed from a powder feed apparatus into a feeder slidably disposed on a die plate of a press proper and a feeder drive motor is servo-controlled by an output obtained by comparing detection outputs from a position detector for detecting the vertical position of the die plate of the press proper and a position detector for detecting the position of the feeder in its sliding direction. As a result, it is possible to avoid the trouble of changing cams or inserting insert cams every time the shape of the compact being molded changes and it is possible to easily make changes to the movement speed of the feeder in correspondence with changes to the compact.

REFERENCES:
patent: 3909167 (1975-09-01), Signora
patent: 5407339 (1995-04-01), Fehlhafer

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