Textiles: fiber preparation – Working – Drafting
Patent
1993-01-28
1996-01-02
Crowder, C. D.
Textiles: fiber preparation
Working
Drafting
19252, D01H 586
Patent
active
054796806
ABSTRACT:
A drafting apparatus for drafting a sliver in the yarn spinning machine preferably comprises upper and lower inlet rollers (2, 3), upper and lower apron belts (9, 6), upper and lower apron belt guides (10, 7) and upper and lower outlet rollers (4, 5). The upper apron belt (9) passes around the upper inlet roller (3) and the upper apron belt guide (10) and the lower apron belt (6) passes around the lower inlet roller and the lower apron belt guide (7) and cooperates with the upper apron belt (9) to define a nipping area (22) between the belts for nipping the fiber sliver (20) as it passes between the upper and lower inlet rollers while being sandwiched between the upper and lower apron belts (9, 6). The sliver is nipped in the nipping area (22) and is subsequently directed by the belts to a nip (25) formed between the upper and lower outlet rollers. The arrangement is such that the sliver is caused to move around a generally S-shaped path and is preferably trapped over the majority of the movement along this path between the two belts. This results in excellent guidance of the fiber and high uniformity of the spun yarn.
REFERENCES:
patent: 3126585 (1964-03-01), Tabor et al.
patent: 4520532 (1985-06-01), Stalder et al.
patent: 4553290 (1985-11-01), Kato
patent: 4644609 (1987-02-01), Lattner
patent: 4656695 (1987-04-01), Lattner
Stalder Herbert
Toggweiler Peter
Crowder C. D.
Neas Michael A.
LandOfFree
Sliver drafting apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sliver drafting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sliver drafting apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-228396