초록 ▼

An apparatus for laying groups of transverse weft threads for a warp knitting machine, the threads being laid on two longitudinal conveyors running to the needle bed by means of a carriage which is reciprocated between and transversely to the direction of travel of the longitudinal conveyors. The we

An apparatus for laying groups of transverse weft threads for a warp knitting machine, the threads being laid on two longitudinal conveyors running to the needle bed by means of a carriage which is reciprocated between and transversely to the direction of travel of the longitudinal conveyors. The weft threads laid after the forward movement lie parallel to the weft threads laid after the backward movement and with the same spacing from the adjacent weft thread in each case. First groups of weft threads are laid as a first layer and then groups of weft threads are laid as a second layer on the first layer in a direction of their weft threads which forms, with the direction of the weft threads of the first layer, and angle, particularly of at least 20°, which opens transversely to the direction of travel of the longitudinal conveyors.

대표청구항 ▼

A weft thread laying apparatus for warp knitting machines having a needle bed and two spaced apart longitudinal conveyors for continuously conveying weft threads in a given direction to the needle bed, the apparatus comprising: first and second carriages reciprocally movable between said two longitu

A weft thread laying apparatus for warp knitting machines having a needle bed and two spaced apart longitudinal conveyors for continuously conveying weft threads in a given direction to the needle bed, the apparatus comprising: first and second carriages reciprocally movable between said two longitudinal conveyors in a substantially transverse direction to the movement of said conveyors, with said second carriage spaced from said first carriage and located intermediate said needle bed and said first carriage; first and second thread laying guides carried on said first and second carriages, respectively, and adapted for movement in a direction relative to the direction of movement of said conveyors to lay a first and a second plurality of parallel weft threads between said conveyors; first and second runway rails cooperating with said first and second thread laying guides, respectively, to guide the same in a given reciprocal path between said opposed conveyors; and first and second guide rails being movable relative to the direction of movment of said conveyors to cause said thread laying guides to lay said plurality of first and second weft threads at an angle of 20°or greater as viewed transversely to the direction of travel of said conveyors; a pair of displacement combs for each of said first and second thread laying guides, with each comb of said pair located outwardly adjacent each of the opposed conveyors and adapted to pick the plurality of weft threads from said thread laying guide substantially at the location where said thread guide carried by said thread carriage passes over one conveyor, reverse direction, and moves in that angular reciprocal path determined by said rail toward said other conveyor; each comb of said pair movable in a reciprocable path parallel to said conveyors that distance necessary for said thread guide to lay successive widths of a given plurality of weft threads in parallel onto its respective conveyor; wherein each of said combs receives a given plurality of parallel weft threads from said thread guide, locates the same on the respective adjacent conveyor and then moves in a direction opposite to that of the conveyor that distance necessary for said thread guide to place a successive width of the given plurality of parallel weft threads onto the conveyor so that all the weft threads of each of said first and second thread guides extend in parallel between said opposed conveyors, said plurality of weft threads from said first second thread guides retained in position thereon until knitted together at the needle bed; and roller guide means carried above said conveyors for laying stationary threads in the direction of travel of the longitudinal conveyors and being introduced over one layer of weft threads.