APPARATUS AND SYSTEM FOR CONTINUOUS VACUUM FORMING OF EXTRUDED POLYMER SHEETS
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United States of America Patent
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app pub date -
Aug 30, 2017
filing date -
Aug 31, 2016
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Abstract
An apparatus and method for producing a vacuum formed extruded polymer product employing a plurality of continuously advancing upper and lower mold portions each mounted upon their own track mounted carriage. The adjacent carriages secured to one another by at least one link pin and advanced about the track by at least one drive pin extending outwardly from each carriage for engagement with the flutes of a scroll drive. A lift member is mounted to each lower mold portion for engagement with a closure member wherein as the lift member advances against the closure member on-ramp the lower mold portion elevates until the lift member engages a constant elevation segment wherein the extruded sheet is disposed between the operable vacuum of the upper mold portion and the lower mold portion until the lift member descends the exit ramp of the closure member at the end of the vacuum forming process.
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