Control device for the selection of weft yarns in a weaving machine
AssigneeComez, S.p.A.
InventorAntonio Bonaschi
Life of this patent
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Abstract
The invention pertains to the technical field of the knitting machines and it particularly relates to a control device for the selection of weft yarns. The device of the invention comprises selective tensioning means consisting of movable plates individually integral to tie rods, as well as of electromagnets individually facing said movable plates and globally integral to a movable support approaching said plates and moving away therefrom provided with an alternate motion in synchronism with the movement of the needles of the respective knitting machine. Said electromagnets are individually excited according to a predetermined work program, by electronic circuits.
Claims9
A control device for the selection of weft yarns in a knitting machine, of the kind in which yarns are supplied to the needles by means of tubular weft yarn guides supported by a crosspiece movable parallelly to a needle-bar, the movement of said tubular weft yarn guides with respect to said cross-piece being controlled by rods moved by tie rods connected in turn to a selective tensioning means for the selection of the same tie rods, characterized in that said selective tensioning means consists of a plurality of movable plates individually integral to said tie rods, and of a plurality of electromagnets individually facing said plates and globally integral to a movable support approaching said plates and moving away therefrom, provided with an alternate motion in synchronism with the movement of said needle-bar, said electromagnets being individually excited, according to a predetermined work program, by electronic circuits.
A device according to any one of the preceding claims, characterized in that said tie rods are secured at their ends by means of cable terminals defined by screw members ending with a lobe-shaped cone portion, said portion being crossed by said tie rods and being countersunk when screwing takes place.
Dependencies are inferred from the claim text.