Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Article ejector or stripper control
Patent
1995-05-15
1997-06-17
Le, Long V.
Plastic article or earthenware shaping or treating: apparatus
Control means responsive to or actuated by means sensing or...
Article ejector or stripper control
425556, 264 401, 264 405, B29C 4580
Patent
active
056394861
ABSTRACT:
An ejector mechanism calibration method is for use in an injection molding machine including an ejector mechanism for ejecting a molded product out of a mold. The ejector mechanism is operable to carry out, when the molded product is ejected, an advance operation in which the ejector member is moved forward to a first position and to carry out, after the molded product is ejected, a reverse operation in which the ejector member is moved backward. The ejector member is adapted to be stopped by a stopper located at a second position spaced from the first position in a backward direction. A controller carries out a calibrating operation at a start of an injection molding process. The calibrating operation comprises steps of starting the reverse operation, judging whether or not the ejector member is stopped by the stopper after the reverse operation is started, bringing the reverse operation to an end when it is judged that the ejector member is stopped, advancing the ejector member for a predetermined distance L from the second position to a stop position which is determined as a reverse completion position.
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Le Long V.
Sumitomo Heavy Industrie's, Ltd.
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