Thread draw-off nozzle and open-end spinning device having a thread draw-off nozzle
US-12139824-B2 · Nov 12, 2024 · US
Yarn Draw-Off Unit of a Rotor Spinning Machine and Method for Producing a Yarn with the Aid of a Rotor Spinning Machine
US2016010245A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016010245-A1 |
| Application number | US-201314377290-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 1, 2013 |
| Priority date | Feb 8, 2012 |
| Publication date | Jan 14, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The invention relates to a yarn draw-off unit of a rotor spinning machine, having a draw-off nozzle ( 21 ) which projects into a spinning chamber ( 22 ) of the rotor spinning machine, and a draw-off conduit ( 23 ) for a yarn ( 5 ) produced within the spinning chamber ( 22 ), the draw-off conduit ( 23 ) being arranged downstream of the draw-off nozzle ( 21 ) in the draw-off direction of the yarn ( 5 ) that is drawn off from the spinning chamber ( 22 ). The draw-off conduit ( 23 ) comprises a helical section ( 24 ), with the aid of which a false twist can be imparted to the yarn ( 5 ) within the draw-off conduit ( 23 ). Furthermore, a draw-off nozzle for a rotor spinning machine is described, the draw-off conduit ( 23 ) of which comprises a helical section ( 24 ), with the aid of which a false twist can be imparted to the yarn ( 5 ) within the draw-off nozzle ( 21 ). Finally, the invention relates to a method for producing a yarn ( 5 ) with the aid of a rotor spinning machine. The method is characterised in that the yarn ( 5 ) is exposed to torque within a helical section ( 24 ) of the draw-off conduit ( 23 ), said torque causing the yarn ( 5 ) to rotate about its longitudinal axis, the direction of rotation of the rotation corresponding to the direction of rotation that is imparted to the yarn ( 5 ) by the spinning rotor ( 3 ).
First claim
Opening claim text (preview).
1 . Yarn draw-off unit of a rotor spinning machine that has a draw-off nozzle ( 21 ) projecting into a spinning chamber ( 22 ) of the rotor spinning machine, and a draw-off conduit ( 23 ) for yarn ( 5 ) produced inside the spinning chamber ( 22 ), wherein the draw-off conduit ( 23 ) is arranged downstream of the draw-off nozzle ( 21 ) in the draw-off direction of the yarn ( 5 ) that is drawn off from the spinning chamber ( 22 ), characterized in that the draw-off conduit ( 23 ) has a helical section ( 24 ) with whose help a false twist can be imparted to the yarn ( 5 ) inside the draw-off conduit ( 23 ). 2 - 20 . (canceled)
Assignees
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Classifications
- D01H4/40Primary
Removing running yarn from the yarn forming region, e.g. using tubes · CPC title
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- What does patent US2016010245A1 cover?
- The invention relates to a yarn draw-off unit of a rotor spinning machine, having a draw-off nozzle ( 21 ) which projects into a spinning chamber ( 22 ) of the rotor spinning machine, and a draw-off conduit ( 23 ) for a yarn ( 5 ) produced within the spinning chamber ( 22 ), the draw-off conduit ( 23 ) being arranged downstream of the draw-off nozzle ( 21 ) in the draw-off direction of the yarn…
- Who is the assignee on this patent?
- Rieter Ag Maschf
- What technology area does this patent fall under?
- Primary CPC classification D01H4/40. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Thu Jan 14 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).