Karl Mayer is making a contribution to the processing of high performance fabrics by introducing a new portal weft-insertion warp knitting machine. The machine can process carbon, glass, basalt, aramid and high-strength polyester fibers, among others, while making maximum use of the yarns, since the weft is inserted with no waste.

The weft is inserted in line with the stitches without any waste being produced and from both sides of the machine. Working from a creel on both sides of the portal weft insertion machine avoids the laying device from making empty runs, thus increasing the productivity of the weft system. The laying device  grips the 20 weft yarns of the creel on one side of the machine during the laying cycle and pulls them in a continuous movement over the working width. 

The laying device is then synchronised with the transport chain. Once they are running synchronously, the weft yarns are laid into the transport chain to match the gauge, fixed with yarn clamps, and cut from the bobbins on the creel by means of a circular blade. The laying device then grips the weft yarns on the creel on the other side of the machine and repeats this sequence on the other side.

www.karlmayer.com/