Process and device for pneumatic feeding of fibers to the fiber

Textiles: spinning – twisting – and twining – Apparatus and processes – Open end spinning

Patent

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Details

19112, 57406, 57407, 57409, 57410, 57411, D01H 436, D01H 438

Patent

active

054976103

ABSTRACT:
In pneumatic feeding of fibers (20) to the fiber collection surface of an open-end spinning element, the air which circles together with the opener roller (10) and is conveyed past the inlet opening (40) of the fiber feeding channel (4) is fed back to the fiber feeding channel (4). In this process, the air is conveyed in the circumferential area of the housing (1) between the inlet opening (40) of the fiber feeding channel (4) and the feeding point (21) of the fiber sliver (2) to the opener roller (10) to at least one end of the opener roller (10) and is then fed back along this (at least one) end of the opener roller (10) to the inlet area of the fiber feeding channel (4). Here the air duct, by comparison with the distance between the end wall of the opener roller (10) and the end wall of the housing (1) facing it in the area which does not serve as air duct as seen in the direction of fiber conveying - is designed as an enlargement of the distance between these end walls between the opening (13) containing the feeding device (3) at least in part and the inlet opening (40) of the fiber feeding channel. It extends from the opening (13) containing the feeding device (3) at least in part to the area of the inlet opening (40) of the fiber feeding channel (4).

REFERENCES:
patent: 3626681 (1971-12-01), Naruse
patent: 3681907 (1972-08-01), Jindra et al.
patent: 3800520 (1974-04-01), Schiltknecht
patent: 3922839 (1975-12-01), Sakurai et al.
patent: 3934145 (1974-09-01), Ellingham et al.
patent: 4901519 (1990-02-01), Wassenhoven et al.
patent: 4976099 (1990-12-01), Brockmanns et al.
patent: 5361574 (1994-11-01), Gebhardt
patent: 5373690 (1994-12-01), Gebhardt
patent: 5398494 (1995-03-01), Wassenhoven et al.

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