Circular knitting machine having integrated multiple yarn changing apparatus

A circular knitting machine having integrated multiple yarn changing apparatus, comprising:

• a first yarn changing apparatus and a second yarn changing apparatus that include respectively at least one first yarn feeding means and at least one second yarn feeding means, the first and second yarn feeding means being moved respectively outwards through a first yarn feeding stroke and a second yarn feeding stroke to a yarn feeding position to provide yarns;
• a driving cam set which includes a first driving track and a second driving track that drive respectively the first and second yarn feeding means to proceed respectively the first and second yarn feeding strokes, the second driving track further including a driving delay zone to generate a yarn feeding time lag between the second yarn feeding means while proceeding the second yarn feeding stroke and the first yarn feeding means while proceeding the first yarn feeding stroke;
• and
• at least one cylinder holder which holds a plurality of knitting needles, at least the knitting needles located at the yarn feeding position between the first and second yarn feeding means being movable to a yarn hooking position to hook the yarns provided by the first and second yarn feeding means at the yarn feeding time lag.