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US 10,753,013 B2Granted
Method for producing a rotor cup for an open-end spinning rotor along with a rotor cup for an open-end spinning rotor
AssigneeMaschinenfabrik Rieter AG
InventorsMarkus Kuebler, Bernd Loos, Andreas Frank
Life of this patent
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Abstract
A method for producing a rotor cup for an open-end spinning rotor includes forming separating structures on a front-side rim of the rotor cup for breaking up and preparing a yarn end for piecing. The separating structures are formed by a non-mechanical manufacturing method without contact between the front-side rim and a mechanical forming tool. A rotor cup formed in accordance with the method is also provided.
Claims11
A rotor cup for an open-end spinning rotor, comprising:
- an inner rotor wall;
- an outer rotor wall;
- a rotor bottom;
- a front-side rim opposite the rotor bottom;
- and
- a plurality of separating structures in the front-side rim for breaking up and preparing a yarn end for piecing, the separating structures comprising a micro-profile surface.
3 more elements
A rotor cup for an open-end spinning rotor, comprising:
- an inner rotor wall;
- an outer rotor wall;
- a rotor bottom;
- a front-side rim opposite the rotor bottom;
- a plurality of separating structures in the front-side rim for breaking up and preparing a yarn end for piecing, the separating structures comprising a micro-profile surface;
- and
- wherein the separating structures comprise a width (B) of less than 0.5 mm.
4 more elements
A rotor cup for an open-end spinning rotor, comprising:
- an inner rotor wall;
- an outer rotor wall;
- a rotor bottom;
- a front-side rim opposite the rotor bottom;
- a plurality of separating structures in the front-side rim for breaking up and preparing a yarn end for piecing, the separating structures comprising a micro-profile surface;
- and
- comprising a spacing (A) between 0.2 mm and 1.5 mm between the separating structures.
4 more elements
Dependencies are inferred from the claim text.