System and method for control of plastic filament extruder
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United States of America Patent
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Dec 5, 2017
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N/A
app pub date -
Jul 22, 2015
filing date -
Jul 22, 2015
priority date (Note) -
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Abstract
A method for control of a plastic filament extruder includes the steps of providing a plastic filament extruder; introducing a quantity of plastic chips to the extruder; activating a heater to heat a mold body of the extruder to a target temperature; activating an electric motor in response to the mold body reaching the target temperature, thereby causing an auger to drive plastic chips the mold body and out of an extrudate sizing die; monitoring the electric current draw of the electric motor; and upwardly adjusting the target temperature of the mold body in response to a threshold increase in the electric current draw of the electric motor. Steps may also include maintaining the mold body within a temperature range about the target temperature and of deactivating the electric motor in response to the target temperature exceeding a threshold deviation above the temperature of the mold body.
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