PLASTICIZING UNIT FOR AN INJECTION MOLDING MACHINE
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United States of America Patent
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Feb 18, 2016
app pub date -
Aug 13, 2015
filing date -
Aug 14, 2014
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Abstract
A plasticizing unit (1) for an injection molding machine having a plasticizing screw (4) arranged rotatably and displaceably in a cylinder bore of an axially extending plasticizing cylinder, wherein a screw prechamber (3) is arranged between an injection nozzle of the plasticizing cylinder and a screw tip of the plasticizing screw (4), wherein a plurality of ultrasound transducers (5) is arranged at different axial positions of a wall (2) of the plasticizing cylinder and there is provided an evaluation unit (8) which is adapted to produce an axial temperature profile in the screw prechamber (3) from signals from the ultrasound transducers (5).
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