Process for deep drawing plastic foils
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United States of America Patent
Stats
-
Jan 14, 1992
Grant Date -
N/A
app pub date -
Aug 31, 1990
filing date -
Sep 7, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The deep-drawing of plastic foils for producing receptacles uses a drawing punch intermittently movable into a drawing mold and several expansion elements (jaws) radially movable on the drawing punch. The movement of the jaws and the punch is mutually effected to discontinuously move the drawing punch during its inward movement and to stop it for a respective predetermined dwell time. This can be combined with a continuous or discontinuous movement of the expansion jaw elements.
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Cited Art Landscape
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