Stitch density adjusting device of circular knitting machine

Details Stitch density adjusting device of circular knitting machine Stitch density adjusting device of circular knitting machine

1992-11-20

1994-02-22

Crowder, Clifford D.

Textiles: knitting

Independent-needle machines

Circular

66 8, D04B 900

Patent

active

052877094

ABSTRACT:
In a stitch density adjusting device of a circular knitting machine for knitting stockings, panty hose, tights and so on, a needle cylinder is moved up and down for adjusting the density of the stitches being formed. In order to move the needle cylinder up and down, a knitting control unit having a knitting program set therein supplies a control signal to a reversible pulse motor which causes the needle cylinder to move through a movement transmission mechanism. The temperature rise in the knitting head due to friction is detected by sensor in the head and compared with a set value in a comparator which delivers a temperature difference signal to the knitting control unit. The control unit operates to compensate for the temperature rise by controlling the pulse motor.

REFERENCES:
patent: 1612736 (1926-12-01), La Montagne
patent: 2911808 (1959-11-01), Routh et al.
patent: 4527402 (1985-07-01), Swallow et al.
patent: 4567737 (1986-02-01), Lonati

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