Thread feeding speed stabilizing device and method for double twister roller

Abstract

The present invention relates to thread feeding speed stabilizing device and method for double twister roller. The method of the present invention includes conveying actively the ply thread with the clamping upper roller and lower roller; and ensuring the excellent formation and density of the yarn with the torsion spring compensator, so as to stabilize the thread feeding speed and thread feeding speed of roller and raise the quality of the yarn. The device includes one circular upper metal roller and one circular lower rubber roller installed in pair to form one clamping roller, one torsion spring compensator and one self-locking mechanism of rocker capable of pressing or relieving the upper and the lower rollers.

Description

technical field [0001] The invention relates to a device and method for constant wire feeding speed of two-for-one twister rollers. technical background [0002] At present, there are two types of overfeeding rollers actually used in two-for-one twisters: the first disc type overfeeding roller, which is mainly composed of two discs. The hemispherical protrusions, the hemispherical protrusions of the two discs are interlaced and connected with each other. During operation, the yarn is driven by the surface of the protrusion along a tortuous path. With the reciprocating yarn guide reciprocating left and right, the diameter of the take-up bobbin changes from small to large, the unwinding bobbin from large to small, and the tapered tube itself Affected by many factors, the tension of the yarn will fluctuate. When the friction on the surface of the protrusion is not enough, the yarn will slip in the overfeed roller. The second type of double-roller overfeeding roller, for heav...

AI Technical Summary

Problems solved by technology

The twin-roller overfeeding roller has greater control over the strands, but as the yarn guide reciprocates and the winding speed fluctuates, the strands still slip on the double-roller surface

The winding bobbin of the original two-for-one twisting machine is driven by the friction of the winding shaft, which inevitably has the influence of the taper of the winding bobbin, the slipping of the winding bobbin and the friction wheel, the traverse of the guide yarn, and the size of the forming bobbin, causing winding The instability of strand winding tension, unwinding tension, balloon external tension and balloon internal tension also affects the instability of winding strand speed, resulting in the limitation of high yarn twist unevenness

[0003] In recent years, due to the higher and higher requirements for the strands, due to the limitation of the structure of the current two-for-one twisting machine, it is impossible to further reduce the uneven twist of the strands for the two-for-one twisting machine only by improving the processing accuracy of parts

So far, there is no two-for-one twister that can guarantee a constant winding speed and stable twist unevenness

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