Yarn breaking prevention mechanism of knitting machine

The invention discloses a knitting machine anti-breaking mechanism which comprises a base and two side seat plates movably arranged on the two sides of the base, a lower elastic structure is arranged between the two side seat plates and the base, and the top ends of the two side seat plates are fixedly connected with a top seat relative to the upper portion of the base. A winding drum is rotationally installed between the two side supporting plates through a rotating shaft, and a plurality of elastic guide roller assemblies are arranged on the surface of the winding drum. By optimizing and improving the anti-breakage mechanism of the knitting machine in the prior art and additionally designing the lower elastic structure on the basis of the anti-breakage mechanism, the winding drum not only can elastically rotate, but also can move up and down, so that the buffering effect on subsequent transmission of knitting wires is further improved, the multiple groups of elastic guide roller assemblies are designed on t