Thermoforming apparatus having deformation sensor and method
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United States of America Patent
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Oct 25, 2022
Grant Date -
Oct 24, 2019
app pub date -
Apr 24, 2018
filing date -
Apr 24, 2018
priority date (Note) -
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Abstract
A thermoforming apparatus is provided having a pair of coacting platens, a load bearing structural member, a force applicator, and a deformation sensor. The pair of coacting platens and respective dies are configured to mate on opposed surfaces of a heated sheet of thermoformable material to form articles. The load bearing structural member is configured to carry the coacting platens and the dies in complementary closed relationship about the sheet during an article forming operation. The force applicator is carried by the structural member and configured to impart a forming load between the pair of opposed dies and platens and across the structural member during a forming operation. The deformation sensor is configured to span a first location and a second location on the structural member to detect deformation indicative of separation between the dies resulting from deformation. A method is also provided.
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