Thread draw-off nozzle for an open-end spinning device
A thread draw-off nozzle for an open-end spinning device includes a nozzle insert configured to deflect a yarn produced by the open-end spinning device. A nozzle frame fixes the thread draw-off nozzle in the open-end spinning device. The nozzle frame includes a cylindrical shank, which has a centering diameter and a length that is shorter than half the centering diameter.
1. A thread draw-off nozzle for an open-end spinning device, comprising:
a nozzle insert configured to deflect a produced yarn;
a nozzle frame that fixes the thread draw-off nozzle in the open-end spinning device, the nozzle frame comprising a cylindrical shank;
the cylindrical shank comprising a centering diameter, and a length that is shorter than half the centering diameter.
2. The thread draw-off nozzle according to claim 1 , wherein nozzle frame is formed of a metallic material.
3. The thread draw-off nozzle according to claim 1 , wherein the nozzle frame comprises a flat nozzle plate at an end thereof.
4. The thread draw-off nozzle according to claim 1 , wherein the nozzle frame is formed of a ferromagnetic material or comprises a ferromagnetic insert.
5. The thread draw-off nozzle according to claim 1 , wherein the nozzle insert is formed of a ceramic material.
6. The thread draw-off nozzle according to claim 1 , wherein the cylindrical shank comprises a recess located to receive an attachment means that extends through the nozzle frame.
7. The thread draw-off nozzle according to claim 1 , wherein the nozzle insert is glued into the nozzle frame.
8. The thread draw-off nozzle according to claim 7 , wherein the nozzle frame ( 4 ) features a ring-shaped adhesive surface ( 11 a ) that is oriented in a perpendicular manner to a circumferential surface of the cylindrical shank ( 6 ), which corresponds to a ring-shaped adhesive surface ( 11 b ) of the nozzle insert ( 3 ).
9. The thread draw-off nozzle according to claim 1 , wherein the nozzle frame comprises a flat nozzle plate at an end thereof, the nozzle plate spaced at a distance from a lower edge of the nozzle insert.
10. The thread draw-off nozzle according to claim 1 , wherein the thread draw-off nozzle comprises an outer diameter that is less than 18 mm.