Knitting machine

Details Knitting machine Knitting machine

1975-03-20

1976-06-15

Feldbaum, Ronald

Textiles: knitting

Feeding

Positive

D04B 1548, D04B 1550

Patent

active

039628914

ABSTRACT:
A yarn supply device for a rectilinear knitting machine capable of supplying the needles of the machine with a predetermined quantity of yarn irrespective of the speed of operation of the machine. The supply device comprises a yarn feed unit incorporating a drive member such as a pulley around which the yarn is wound in order to obtain positive drive engagement, the pulley being driven by an electric motor energized with an error signal derived from the output signal of a transducer sensitive to the actual displacement speed of the yarn feed device, and a signal representing the desired speed derived from the displacement and speed of a cam bar and thrower bar of the knitting machine. Arrangements are made for compensation in the error signal for the different stretch in the yarn in dependence on the position of the thrower with respect to a fixed yarn guide, and also for the inertia of the drive member of the yarn feed unit.

REFERENCES:
patent: 3364703 (1968-01-01), Krause
patent: 3396558 (1968-08-01), Taylor
patent: 3461692 (1969-08-01), Raisin
patent: 3550400 (1970-12-01), Peat et al.
patent: 3566134 (1971-02-01), Peat et al.

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