Latch needle of warp knitting machine

Abstract

The invention discloses a latch needle of a warp knitting machine, which comprises a needle body, a needle rod, a needle hook, a needle foot and a needle latch. The needle body, the needle rod, the needle hook and the needle foot are manufacture integrally, a yarn inlet-and-outlet opening is arranged between the needle rod and the needle hook, and a latch groove is arranged on the needle rod along the length direction. One end of the needle latch can be supported in the latch groove in a swinging mode, and the other end of the needle latch can open or close the yarn inlet-and-outlet opening during swinging. The height L of the latch needle is in a range of 48-52 mm, and the width W of the needle body, the width W of the needle rod and the width W of the needle foot are identical and in a range of 0.3-0.5 mm. The height L of the latch needle is 50 mm preferentially, the width W of the needle body, the width W of the needle rod and the width W of the needle foot are respectively 0.5mm preferentially, the section of the needle hook is round preferentially, and the diameter of the needle hook is 0.45 mm. The latch needle can be simultaneously suitable for a high machine number warp knitting machine and a low machine number warp knitting machine, is convenient to manufacture and is especially suitable for popularization and use of a warp knitting machine with double needle beds, and investment costs of enterprise devices are reduced greatly.

Description

technical field [0001] The invention relates to a loop forming component in the knitting mechanism of a warp knitting machine, in particular to a latch needle in the loop forming component. Background technique [0002] Existing warp knitting machines, especially the latch needles in the loop forming parts of double-needle bed warp knitting machines, include needle bodies, needle bars, needle hooks, stitches and needle latches; It is an integral part made in one piece, the section of the needle hook is rectangular or square, a yarn inlet and outlet is provided between the needle bar and the needle hook, and a A tongue groove, one end of the needle latch is swingably supported in the tongue groove, and the other end of the needle latch can open or close the yarn inlet and outlet when swinging. For decades, when knitting, for warp knitting machines with low gauges such as E24 and E18, latch needles with long needle bars and large strokes have been used, and the transmission m...

AI Technical Summary

Problems solved by technology

In this way, in the production process, due to the different transmission mechanisms adopted by the high and low gauge warp knitting machines, on the one hand, the latch needles of the low gauge warp knitting machines cannot meet the knitting motion accuracy requirements of the high gauge warp knitting machines, and the The latch needles of high-gauge warp knitting machines cannot meet the knitting motion accuracy requirements of low-gauge warp knitting machines, so that the latch needles used by high-gauge and low-gauge warp knitting machines cannot be used interchangeably and cannot be used universally. Meet the timely replacement of high and low machine numbers, thus greatly increasing the equipment investment cost of the enterprise

In addition, since the cross-section of the needle hook is rectangular or square, the manufacture of the latch needle is also relatively inconvenient

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