Control method for testing and determining length of raw material thread of rewinding vehicle and control device used thereof

Abstract

The invention discloses a winding car raw material wire fixed length control method, which is characterized in that the method comprises the following steps: mounting a circle roller which is equipped with a magnet block on spindles of the winding car; coiling the raw material wire against the circle roller; driving the circle roller to rotate when the raw material wire is wound; and mounting a hull sensor in the position corresponding to the magnet block on the circle roller to detect an impulse signal, further outputting the impulse signal in a signal processing device; counting, comparing the count value with the setting value by the signal processing device; and outputting the control signal and cutting off the raw material wire when the count value reaches the setting value. By adopting the proper method and device to control the coiling length of the raw material wire on the straight bobbin, the invention not only improves the control precision, and reduces the energy loss, but also has the advantages of simple structure, easy operation and low manufacturing cost.

Description

technical field [0001] The invention relates to a control method for measuring and fixing the length of raw material silk in the pre-weaving process, and belongs to the technical field of raw material silk processing in the field of textiles. Background technique [0002] In the weaving process, in order to make the fibers of the spun yarn more closely cohere, the yarn has certain physical and mechanical properties; the processability of the filament weaving process is improved, and the textile anti-pilling and snagging resistance are improved. sex. In the preliminary process of weaving, it is necessary to twist the raw material yarn. The process is usually to wind the raw material yarn on the hollow straight bobbin through the winding car, and then go through the two-for-one twisting car for twisting treatment. Since the winding car adopts the dragon belt structure, the length is recorded regularly, there is a slip between the dragon belt and the spindle, so that the leng...

AI Technical Summary

Problems solved by technology

Taking composite yarn winding 50,000 meters as an example, there is a difference of about 2,000 meters between the longest and shortest spindles wound by the winding car, so that after twisting by the two-for-one twisting car, compared with the end time, the last finished One ingot is about 2 hours longer than the earliest finished one, even if the two-for-one twisting machine has an extra 2 hours of working time, the loss of the two-for-one twisting machine and the power loss are very large

And if the winding length of raw material yarn can be controlled, this problem can be well solved, but some existing methods or devices for controlling the fixed length of raw material yarn are difficult to operate, complex in structure, high in cost, and not precise enough in control. Unsatisfactory use

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