Plasticizing unit for an injection molding machine
AssigneeEngel Austria GmbH
InventorBernhard PRAHER
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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).
Claims9
A plasticizing unit for an injection molding machine having a plasticizing screw arranged rotatably and displaceably in a cylinder bore of an axially extending plasticizing cylinder, wherein a screw prechamber is arranged between an injection nozzle of the plasticizing cylinder and a screw tip of the plasticizing screw, wherein a plurality of ultrasound transducers is arranged at different axial positions of a wall of the plasticizing cylinder and there is provided an evaluation unit which is adapted to produce an axial temperature profile in the screw prechamber from signals from the ultrasound transducers.
A method of producing a temperature profile in the screw prechamber of a plasticizing unit of an injection molding machine using at least one ultrasound transducer, wherein the plasticizing unit has a plasticizing cylinder having a wall, wherein an axial temperature profile is produced from signals obtained at different axial positions of the wall of the plasticizing cylinder by means of the at least one ultrasound transducer.
Dependencies are inferred from the claim text.