Mechanical parts ejector for trim press
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United States of America Patent
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-
Apr 6, 1993
Grant Date -
N/A
app pub date -
May 24, 1991
filing date -
May 24, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus for trimming and ejecting articles integrally thermoformed in a sheet of thermoplastic material from the sheet including a pair of opposed trim dies which will trim parts out of a web of thermoplastic material. Apparatus is provided for pushing the trimmed parts out of the trimming station at a greatly accelerated rate. The apparatus includes a pusher member reciprocally movable in a to-and-fro path of travel between a retracted position and a forward ejecting position. Apparatus is provided for moving the ejector mechanism in the to-and-fro path and includes a toggle linkage mechanism which engages a cam for movement between relatively folded positions on one side of a plane and relatively oppositely folded positions on the opposite side of the plane to rapidly advance and even more rapidly retract the pusher member.
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