Textiles: spinning – twisting – and twining – Apparatus and processes – With preparation for doffing- or donning-type operation
Patent
1994-07-05
1996-06-11
Stryjewski, William
Textiles: spinning, twisting, and twining
Apparatus and processes
With preparation for doffing- or donning-type operation
57 67, 57 71, 57115, 57117, 57269, 57270, 57277, 57278, D01H 900, D01H 910
Patent
active
055244289
ABSTRACT:
To secure the end of the roving (5) to packages (9) before their doffing from a roving frame, it is proposed to initially raise the package support carriage (2) into a position such that the lower end (4a) of the tubes (4) is at the level of the compressor (16) of the flyers (6), then rotate the packages (9) and flyers (6) through a few revolutions in order to wind and secure the roving (5) onto the lower end portion (4a) of the tubes (4), after which the carriage (2) is lowered to break the roving (5) in the section between the lower end (4a) of the tubes (4) and the flyers (6). Preferably, before lowering the packages (9), a reserve of roving (5) is created by slowly rotating the flyers (6) and packages (9) through a few revolutions, to simultaneously twist the roving (5) and strengthen it.
REFERENCES:
patent: 5117621 (1992-06-01), Feichtinger et al.
patent: 5259179 (1993-11-01), Sekiya et al.
patent: 5331799 (1994-07-01), Weeger
Borgogni Angelo
Locatelli Claudio
Fratelli Marzoli & C. S.p.A.
Stryjewski William
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