Apparatus for using external drive motors for twisting and windi

Details Apparatus for using external drive motors for twisting and windi Apparatus for using external drive motors for twisting and windi

1979-09-12

1981-12-08

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Receiving twist type

57 66, 57 93, 57100, D01H 126, D01H 100, D01H 702, D01H 724

Patent

active

043040918

ABSTRACT:
An apparatus for twisting and winding strand onto a rotating bobbin comprises a spindle located within an open top pot both mounted for coincident rotation about a common axis. A strand guide mounted on the wall of the pot guides strand from an external source to be twisted and wound onto the bobbin. During rotation of the bobbin and pot, the pot is axially reciprocated relative to the bobbin to layer the strand while strand tension is monitored by a transducer located in the strand supply path. Strand tension is controlled by controlling the differential between the speeds of rotation of the bobbin and pot in response to the output of the transducer and a reference, as taught in my U.S. Pat. No. 4,128,988. In accordance with the present invention, the speed differential is developed by first and second external electric motors coupled respectively to the pot and bobbin to rotate the pot at a constant speed and the bobbin at a variable speed to impart a desired tension in the strand being wound onto the bobbin.

REFERENCES:
patent: 1412518 (1922-04-01), Guildford
patent: 1846715 (1932-02-01), Gegauff
patent: 2026155 (1935-12-01), Abbott
patent: 2485776 (1949-10-01), Roberts
patent: 2610461 (1952-09-01), Ragan
patent: 2820336 (1958-01-01), Sagehome
patent: 2833111 (1958-05-01), Hadlich
patent: 2985994 (1961-05-01), Menke et al.
patent: 3174270 (1965-03-01), Blaschke
patent: 3926072 (1975-12-01), Richardson
patent: 4128988 (1978-12-01), Ragan
patent: 4196572 (1980-04-01), Hunt

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