Yarn tension device for warp knitting machine

Abstract

The invention discloses a yarn tension device for a warp knitting machine. The yarn tension device comprises a cylinder fixation seat, a cylinder, a cylinder pull head, a steel rope, a yarn through rod, rotary wheels, an air supply tube, a pressure gauge, a valve, an air storage tank, a tension spring, a yarn guide cap, a yarn and the like, wherein the rotary wheels are installed at the both ends of the yarn through rod, the tension spring is uniformly installed at the middle, and the yarn guide cap is clamped at the tail end of the tension spring; the yarn is woven by a machine table round the yarn guide cap; one end of the cylinder is located on the fixation seat, and the cylinder pull head at the other end is provided with the steel rope; the other end of the steel rope is fixed on the rotary wheel; in this way, the yarn through rod is tensioned as long as the cylinder works, thus tensioning the yarn guide cap; the air storage tank is installed on the machine table of the warp knitting machine, and an air compressor in a workshop is used for supplying air to the air storage tank; air in the air storage tank enters the cylinder through the air supply tube; a pressure in the cylinder is adjusted by a pressure adjusting valve, and the pressure is adjusted according to the tension of the yarn; the pressure display gauge is capable of displaying the air pressure during the working of the cylinder, thus facilitating operation.

Description

technical field [0001] The invention relates to an auxiliary device for a warp knitting machine, in particular to a yarn tension device for a warp knitting machine. Background technique [0002] Because the fabrics woven by warp knitting machines have different patterns, different raw materials, different starting speeds, etc., the warp let-off amount of the required yarns is also different, so the tension control of the warp knitting machine is a very important link in the weaving process. Loose tension can easily cause yarn slack, many yarn breaks in the fabric, and the fabric pattern is not clear and unsightly. If the tension is tight, the needle will be biased by the over-tight yarn, which will affect the accuracy of the stitch length, and it is easy to cause yarn breakage, missing stitches and fast wear of the needle, which not only affects the fabric quality, but also affects the production efficiency. Warp knitting machines currently on the market generally use sprin...

AI Technical Summary

Problems solved by technology

The tension device of the existing warp knitting machine cannot control the tension of each yarn, let alone ensure the uniform tension of the yarn, which not only affects the accuracy and uniformity of yarn feeding, but also makes the warp of the produced cloth The distance between them is not uniform, which affects the quality and production efficiency of the cloth surface

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