Yarn tension control device of warp knitting machine

Abstract

The invention provides a yarn tension control device of a warp knitting machine, comprising a yarn guide rod supported by a frame, a tension rod, a yarn guide cap, and a control component corresponding to each guide bar, wherein the control component comprises a tension spring, a limit switch, a comb chain wheel and a restoring spring; the comb chain wheel is fixed on the tension rod and is connected with the lower end of the restoring spring through a chain; the upper end of the restoring spring is fixed on the frame; the middle part of the tension spring is connected with the tension rod; and two ends of the tension spring are connected on the yarn guide cap. The yarn tension control device of the warp knitting machine is characterized in that the tension rod is provided with a limit cam wheel; the lower part of the limit cam wheel is provided with a notch, and the switch shifting rod end of the limit switch extends into the notch of the limit cam wheel. When the device is used, if the yarns are too tight or too loose, the warp knitting machine is stopped automatically, and the problem of regulating the limit distance in the existing yarn tension control device is avoided.

Description

Technical field [0001] The invention relates to a yarn tension control device for a warp knitting machine. Background technique [0002] In order to maintain a constant tension of the yarn at all times, make the yarn conveying smoothly, and prevent the jacquard needle from breaking due to excessive yarn tension, a yarn tension control device is installed on the warp knitting machine. see Picture 9 , The yarn tension control device includes a yarn guide rod and a tension rod 3, and also includes a limit switch 7 and a tension control disk 16 fixed on the tension rod 3. The tension control disk is in the shape of a racket, and the dial of the limit switch is in tension control Next to the handle of the disc, the yarn passes against the circumferential surface of the tension control disc. As the tension of the yarn changes, the tension control disc keeps swinging. When the yarn tension is too high, the handle of the tension control disc touches the dial. Move the switch lever, the ...

AI Technical Summary

Problems solved by technology

Because the control of the yarn tension is realized by adjusting the limit distance h between the handle of the tension control disc and the lever, if the limit distance is too small, the machine will stop frequently, which will affect the production efficiency. If the limit distance is too large, the yarn The thread tension control device does not work, which affects product quality

The existing tension control device has only one limit, that is, it can automatically stop when the yarn is too tight, but it cannot be controlled when the yarn is too loose, and the limit distance between the handle of the tension control disc and the limit switch lever No benchmark, difficult to adjust

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