Method and apparatus for processing fibers
AssigneeTruetzschler GmbH & Co. KG
InventorsDominik KÜSTERS, Pedro CORRALES-ARREGUI, Christoph FÄRBER
Life of this patent
Estimating the term…
Abstract
A process and an installation for producing a yarn in accordance with an airjet-spinning method. A carded fibre sliver is subjected to more than three-fold drawing without levelling at a carding machine and deposited in a can (C). At least nine fibre slivers are fed draftfree from cans (C) to a draw frame and subjected to at least 8.5-fold drawing to form a fibre sliver and deposited in a can (C1). The fibre sliver in the cans (C1) is then fed to a spinning station of an airjet-spinning machine.
Claims18
1-17. (canceled)
A process for processing fibres, comprising steps of:
- producing on a carding machine a carded fibre sliver;
- subjecting the carded fibre sliver to preliminary drawing to produce a pre-drawn fibre sliver;
- depositing the pre-drawn fibre sliver in one of a plurality of first cans, feeding draftfree at least 9 or 12 of the pre-drawn fibre slivers from a corresponding number of first cans of the plurality of first cans to a draw frame and drawing the at least 9 to 12 pre-drawn fibre slivers on the draw frame to form a drawn fibre sliver;
- depositing the drawn fibre sliver in one of a plurality of second cans;
- and
- feeding the drawn fibre sliver in the one second can to a spinning station of an airjet-spinning machine.
An installation for producing a yarn in accordance with an airjet-spinning method, comprising:
- a carding machine;
- an integrated draw frame and a can changer arranged at the carding machine;
- a single drawing unit in a form of an autoleveller drawing unit;
- and
- a driven creel and an airjet spinning machine arranged upstream of the single drawing unit.
Dependencies are inferred from the claim text.