Textiles: knitting – Feeding – Positive
Patent
1990-01-30
1991-11-12
Reynolds, Wm. Carter
Textiles: knitting
Feeding
Positive
226 35, D04B 1550
Patent
active
050637568
ABSTRACT:
In an elastic yarn feeding device of a multi-yarn feeding circular knitting machine, a rotary drive shaft (18) is horizontally arranged above a circular horizontally rotary plate (6), and the drive shaft (18) is provided with a drive roller (17) to be slidable in a longitudinal direction of the drive shaft. The drive roller (17) is urged against the upper surface of the rotary plate (6). When the rotary plate (6) is driven to rotate, the drive roller (17) is also rotated together with the rotary plate. Both the drive roller (17) and the drive shaft (18) are varied in rotational speed by moving the drive roller in the radial direction of the rotary plate (6). The drive shaft (18) has a plurality of feed rollers (21a, 21b, 21c, 21d) secured to it, and pinch rollers (26a, 26b, 26c, 26d) are elastically pressed against these feed rollers, respectively. Elastic yarn (Y) is fed through between each pair of the feed roller and the pinch roller. When the drive roller (17) are moved in a radial direction of the rotary plate (6), the whole pairs of the feed rollers and the pinch rollers are simultaneously changed in yarn feeding speed. Every pinch roller is movable away from the feed roller against the resiliency of the spring (25) when desired, and thus feeding of any elastic yarns may be stopped. The number of the elastic yarn Y to be fed depends upon the number of pairs of the feed rollers and the pinch rollers.
REFERENCES:
patent: 2293838 (1942-08-01), Lawson
patent: 4571958 (1986-02-01), Guell
patent: 4625528 (1986-12-01), Guell
patent: 4969339 (1990-11-01), Vincoli
Nagata Seiki Kabushiki Kaisha
Reynolds Wm. Carter
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