Circular knitting machine structure

A circular knitting machine structure, comprising:

• a plurality of knitting needles, wherein each of the plurality of knitting needles is provided with a needle hook, each of the plurality of knitting needles is configured to be controlled to move on one of a first half knitting track and a second half knitting track, and a retracting time point of the first half knitting track is later than a retracting time point of the second half knitting track;
• and
• a plurality of sinkers, wherein the plurality of sinkers and the plurality of knitting needles are alternately arranged, shapes of the plurality of sinkers are uniform, and one side of each of the plurality of sinkers facing each of the plurality of knitting needles is formed with an inclined plane,
• wherein the knitting needles are configured to be fed with a bottom yarn and a surface yarn having a position in the needle hook higher than the bottom yarn at knitting, each of the plurality of knitting needles moved on the first half knitting track is configured to knit a standard plating without changing the position of the surface yarn, and each of the plurality of knitting needles moved on the second half knitting track is configured to knit an interchanged plating with changing the position of the surface yarn relative to the bottom yarn, wherein the surface yarn is interfered by the inclined plane of one of the plurality of sinkers in the process of the surface yarn pull by the knitting needle.