| 摘要 |
A circular knitting machine is described comprising a needle cylinder and a set of control cams for the needles that comprise ascending branches for the needles and descending branches for the needles and form at least two overlapped tracks (P1, P2) of control cams for the needles, and wherein in the needle cylinder at least two different types of needles (A1, A2) are arranged, different from each other for the different distance between butt and hook and actuated each by a respective cam track (P1, P2). The control cams (A) of a track (P1) present at least the lower part of the respective descending branch displaced in the direction of the movement of rotation of the cylinder with respect to the lower part of the respective descending branch of the corresponding cams (R) of the other track (P2), so that, on each feed, the downward movement of the needles of one type (A1) following a cam track (P1) is advanced by a preset angle of rotation of the cylinder with respect to the downward movement of the needles of the at least one other type (A2) following another cam track (P2). |
