Thread wrapping apparatus

Details Thread wrapping apparatus Thread wrapping apparatus

1987-10-22

1989-02-28

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Covering or wrapping

57 16, 57 17, 57 19, 57100, D02G 334, D02G 338, D01H 132, D01H 788

Patent

active

048074306

ABSTRACT:
In the thread wrapping apparatus disclosed herein a binder spindle is driven by control circuit at a speed corresponding to the operating frequency of a variable oscillator. First, second and third sets of drafting rolls which draw and feed a sliver of fibers to the binder spindle are driven by respective stepper motors through control circuits which operate each of the motors at a respective speed which is an individually preselectable proportion of the speed of the spindle.

REFERENCES:
patent: 3928957 (1975-12-01), Petrov et al.
patent: 4117654 (1978-10-01), Petrov et al.
patent: 4455817 (1984-06-01), Mehta
patent: 4470248 (1984-09-01), Nortenius

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