As previously described in the chapter about the stitch formation motions, the cam-frame is arranged outside the needle-bed; the knitting systems, which transmit the raising and the lowering motions to the needles, are positioned under the cam frame.
In its most simple structure the cam-lock of a single-bed circular knitting machine features a series of raising and lowering cams which form a track where the needle butts slide. The lowering cam can be adjusted so as to create a different lowering level for the needles and, consequently, the formation of shorter or longer stitches.
To carry out this adjustment, the lowering cam is connected to a micrometric screw which can be controlled by means of a push-button positioned outside the cam frame.
Was this article helpful?