Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Feed control of material en route to shaping area
Patent
1996-04-25
1999-01-19
Silbaugh, Jan H.
Plastic article or earthenware shaping or treating: apparatus
Control means responsive to or actuated by means sensing or...
Feed control of material en route to shaping area
425260, 425448, 425171, 425150, B29C 4358
Patent
active
058611800
ABSTRACT:
In a powder feed apparatus and a control method thereof, a powder molding press feeds powder from a hopper of the powder feed apparatus to a feeder slidably disposed on a die plate of the press proper. Powder is charged 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. It is also 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
Kaneko Hideo
Ogawa Kiyoshi
Takahashi Kazutami
Jones Kenneth M.
Silbaugh Jan H.
Tamagawa Machinery Co., Ltd.
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