A weft insertion device on a latch needle warp knitting machine

Abstract

The invention discloses a weft insertion device of a latch needle warp knitting machine and relates to the field of latch needle warp knitting machines. The weft insertion device comprises a shuttle hitting block, a shuttle, a shuttle guide piece, a yarn guide needle block, a yarn guide comb, a shooting-in mechanism and a shuttle braking mechanism. The weft insertion device is mounted on the latch needle warp knitting machine and driven by a servo motor. Integrated control among warp knitting machines is achieved through encoders connected and mounted on the spindles of the warp knitting machines, the weft insertion devices are matched with the yarn guide combs and needles, needle latches are opened when the latch needle warp knitting machines rise to the highest point, the shuttles of the weft insertion devices allow weft lining yarn to penetrate the whole working width of the machines in a padded manner so as to form full-width weft lining warp knitted fabric, the shuttles return to the shooting-in mechanisms when the latch needles falls to the lowest point, and the previous process is repeated. Compared with existing full-width weft lining equipment, the weft insertion device has the advantages that design in simplified, equipment cost is lowered, weft lining accuracy is high, fabric surface quality can be increased, product variety can be widened, and product profit margin is increased.

Description

technical field [0001] The invention relates to the field of warp knitting textile machinery, in particular to a weft insertion device on a latch needle warp knitting machine. Background technique [0002] In recent years, with the rise of industrial warp-knitted products (such as garment interlining, light box fabric and geogrid, etc.), warp-knitted fabrics with full-width weft insertion have been widely valued and developed. The production efficiency of full-width weft-inserted warp knitted fabrics is high. At the same time, the weft yarns inserted in this type of fabric are in a parallel and straight state without bending. Due to the insertion of weft yarns, the structure and mechanical properties of the fabric in the transverse direction can be stabilized. It is an important direction for future product development. [0003] In the past, the full-width weft-inserted warp-knitted fabrics used a multi-head weft-inserted mechanism on the warp-knitting machine to pass the w...

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Problems solved by technology

[0004] The object of the present invention is to address the deficiencies of the prior art, and provide a weft insertion device on a latch needle warp knitting machine, which is used to solve the problems of single types of weft yarns and uneven tension of weft yarns in traditional full-width weft insertion equipment, and can produce cloth Fabrics with flat surface, large room for changing weft yarn types, and good mechanical properties can fully meet the market needs of differentiated production of high-end products, and can produce excellent fabric composite material reinforcements. At the same time, the weaving efficiency of the equipment will also be significantly improved. Improvement, which can meet the needs of enterprises in industrialized mass and rapid production

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