Two-needle bar warp knitting machine with guide bars of one cycle and four swings

Abstract

The invention discloses a two-needle bar warp knitting machine with guide bars of one cycle and four swings. The stitch-forming part of the two-needle bar includes a core, groove pins, a yarn guide bar and a knockover bit, wherein the yarn guide bar is positioned above the needle bar, and the groove pins, which are arranged on the two-needle bar, have needle backs arranged opposite to each other; the stitch-forming movement is characterized in that in the stitch-forming movement cycle, the yarn guide bar is placed front the front groove pin; yarn is laid on the needle back of the front groove pin, the yarn prepares for swinging backward immediately, and meanwhile the back groove pin rises to a certain position; the guide bar swings to the back, the yarn is laid on the needle front of the front groove pin, the guide bar swings forward, and the front groove pin prepares for rising; the yarn guide bar swings to the front, the yarn is laid on the needle front of the back groove pin, the yarn guide bar prepares for swinging backward, the back groove pin prepares for descending, and the front groove pin prepares for rising; the yarn guide bar swings to the backmost position, the front groove pin rises to a certain position, the back groove pin descends to a certain position, and the yarn guide bar swings forward. In the stitch-forming movement, swinging forward and backward is conducted by only four times in one cycle, which improves the whole speed and quality.

Description

Technical field: [0001] The invention relates to a circular swing, in particular to a double-needle bed warp knitting machine with one cycle and four swings, belonging to the field of textile machinery. Background technique [0002] The basic working feature of a modern double-bed raschel machine is the knitting using two needle beds in turn. The latch needles of these two needle beds are aligned front to back and installed back to back. The knitting process for each needle bed is the same as for a single bed latch needle raschel machine. Currently on the market, the loop forming parts of double-needle bed warp knitting machines all use latch needles. The structure of the latch needle is not conducive to high speed, and the speed of both sides is only 500 rpm. It is necessary to install the self-closing steel wire of the latch needle, but if the steel wire is not installed properly, it will bring many disadvantages, such as: damage to the latch needle, resulting in missed ...

AI Technical Summary

Problems solved by technology

Complicates the steps of the loop forming cycle, reduces the speed of the overall double-needle bed knitting, thus affecting the efficiency of the overall production

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