Drawing frame-roving frame combination for the production of rove by means of a pneumatic spinning process
AssigneeMaschinenfabrik Rieter AG
InventorsChristian Griesshammer, Herbert Stalder
Life of this patent
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Abstract
The invention relates to a Drawing-Frame-slubbing machine combination (35), with which, in the same machine, several fibre assemblies (38) are first doubled and stretched and a roving yarn (9) is then manufactured from this. The manufacture of the roving yarn (9) takes place in that a twist (rotation) is applied to the drafter sliver (3), whereby the twist application is effected by means of one or more air flows. To achieve this, the device (35) according to the invention exhibits a drawing frame (36) and one or more twist application means (4) arranged downstream of this.
Claims2
Drawing-Frame-slubbing machine combination (35) for the doubling and stretching of several fibre assemblies (38) to form a draft sliver (3) and for subsequent manufacture of a roving yarn (9) from the draft sliver (3), containing one or more drawing frames (36), preferably regulated, as well as one or more spinning positions (1) arranged accordingly downstream, having a twist application means (4) and preferably a drafting device (2) arranged upstream of the twist application means (4), characterized in that the twist application means (4) contains a swirl chamber (5) with a roving yarn formation element (6) contained within it, whereby the drafter sliver (3) is subjected in the swirl chamber (5) to a true twist, or at least in part to a true twist, by means of an air flow (32).
2-14. (canceled)
Dependencies are inferred from the claim text.