Bidirectional needle selection device for circular knitting machines

Abstract

The present invention discloses a bidirectional needle selection device for a circular knitting machine, comprising a needle cylinder, a plurality of axial grooves on the outer wall of the needle cylinder, a needle selection plate and an electromagnetic needle selector arranged in the groove, the top surface of the cutter head of which is a concave surface composed of two left-right symmetrical inclined surfaces; a lower steel ring is coaxially arranged at the bottom of the needle cylinder, the lower steel ring has an annular groove, the end of the needle selection plate extends into the annular groove, and a plurality of circular arc bosses are arranged on the side of the annular groove facing the center of the circle of the lower steel ring, and a bottom surface with the same height as the annular groove, a step surface higher than the annular groove, and a smooth inclined surface connecting the bottom surface and the step surface in the height direction; the two circular arc bosses are a pair, and the installation position of the electromagnetic needle selector makes the cutter head face the bottom surface of a pair of circular arc bosses in the lower steel ring. The needle selection plate of the present invention has a second motion trajectory higher than the original motion trajectory, and can be pushed to the second motion trajectory during bidirectional rotation, so that more knitting actions can be completed.

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