Back to results
US 11,027,475 B2Granted
Screw-type extruder
AssigneeKobe Steel, Ltd.
InventorsKazuhisa Fukutani, Kosuke Higashi
Life of this patent
Estimating the term…
Abstract
A screw extruder which extrudes a kneaded material includes a screw having a helical flight provided on an outer peripheral surface of a shaft portion thereof, and a chamber housing the screw. In the screw extruder, a flight thickening portion is provided at a part which is a tip portion of the flight and is on the reverse side of a rotation direction of the flight.
Claims12
A screw extruder which extrudes a kneaded material,
- comprising:
- a screw having a helical flight provided on an outer peripheral surface of a shaft portion thereof;
- and
- a chamber housing the screw, wherein
- a flight thickening portion is provided at a part which is a tip portion of the flight and is on the reverse side of a rotation direction of the flight;
- the flight thickening portion extends from the tip portion, along the flight toward the shaft portion, to a reverse surface of the flight thickening portion;
- the reverse surface of the flight thickening portion is disposed such that a gap is formed between the reverse surface of the flight thickening portion and the shaft portion;
- and
- a thickness of the flight is uniform from the tip portion to the shaft portion.
6 more elements
Dependencies are inferred from the claim text.