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Mechanism, method and application of filament bundle variable tension natural convergence coupling wrapping gradient spinning

A filament bundle and tension technology, applied in the direction of yarn, textiles and papermaking, etc., can solve the problems of small gradient color span, large unevenness of yarn sliver, poor color change effect, etc., and achieve high yarn uniformity and yarn strength Improve the effect of simple and effective mechanism

Active Publication Date: 2019-11-08
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problems to be solved by the present invention are: the unevenness of the finished yarn is large, the color change effect is poor and the gradient color span is small and cannot be adjusted, and the medium and low count yarns are limited

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Mechanism, method and application of filament bundle variable tension natural convergence coupling wrapping gradient spinning
  • Mechanism, method and application of filament bundle variable tension natural convergence coupling wrapping gradient spinning
  • Mechanism, method and application of filament bundle variable tension natural convergence coupling wrapping gradient spinning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Take a black wool roving bobbin and a gold-plated polyester filament bobbin each. After the wool roving is positioned and gathered by the buncher, it is fed into the front roller nip with the natural tension of drafting and 4mm spacing. After the polyester filament passes through the tension controller and the yarn guide hook, it is also fed into the front roller nip. For details, see figure 1 shown. After the two shafts exit the nip of the front roller, the twist coefficient α tex It is 360, the spindle speed is 10500rpm, the polyester filaments are gathered at point A under the action of a higher tension of 30cN, forming the maximum wrapping of the polyester filaments by the short hair fibers; the set waveform (triangular wave ) and wavelength (24m) to periodically regulate the tension of polyester filament bundles, so that the natural convergence point of filament bundles and short fiber strands gradually moves from A to B. Simultaneously, the tension of the polyeste...

Embodiment 2

[0056] Take one bobbin of white cotton roving and one bobbin of red polyester filament. After the cotton roving is positioned and gathered by the cluster, it is fed into the nip of the front roller with the natural tension of drafting and 5mm spacing, and the polyester filament is also fed into the nip of the front roller after passing through the tension controller and the yarn guide hook. figure 1 shown. After the two shafts exit the nip of the front roller, the twist coefficient α tex is 375, the spindle speed is 15600rpm, and the polyester filaments are gathered at point A under the action of a higher tension of 20cN, forming the maximum wrapping of cotton staple fibers on polyester filaments in a layered covering type; with the set waveform (trapezoid wave) and wavelength (16m) to periodically regulate the tension of the polyester filament bundle, so that the natural convergence point of the filament bundle and the short fiber strands gradually moves from the A position ...

Embodiment 3

[0058] Take one bobbin of black linen roving and one bobbin of white viscose filament. After the flax roving is positioned and gathered by the cluster device, it is fed into the nip of the front roller with the natural tension of drafting and 5mm spacing, and the viscose filament is also fed into the nip of the front roller after passing through the tension controller and the guide hook. See figure 1 shown. After the two shafts exit the nip of the front roller, the twist coefficient α tex is 375, the spindle speed is 15600rpm, polyester filaments are gathered at point A under the action of a higher tension of 20cN, forming the maximum wrapping of flax staple fibers on viscose filaments in a layered covering type; with the set waveform ( Trapezoidal wave) and wavelength (16m) periodically regulate the tension of viscose filament bundles, so that the natural convergence point of filament bundles and short fiber strands gradually moves from position A to position B. Simultaneo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a gradient spinning mechanism, method and application for filament yarn beam variable-tension natural-gathering coupling wrapping. The mechanism comprises a tension controller capable of accurately adjusting the filament yarn beam tension and driving the natural gathering point of a filament yarn beam and a spun fiber strand to move left and right and up and down, a buncher with positioning and unfolding functions and a tension control mechanism. According to the spinning method, wrapping of the filament yarn beam around the spun fiber strand is achieved at the natural gathering point through the periodic or variable-periodic control of the filament yarn beam tension; otherwise, wrapping of the spun fiber strand around the filament yarn beam is achieved to form gradient composite coupling yarn with a periodic or variable-periodic color, a surface fiber component appearance and gradient mechanical properties. The obtained gradient composite yarn can be directly applied to produce fabrics with distribution characteristics of special colors or functional texture or structured texture or mechanical properties.

Description

technical field [0001] The invention relates to a coupling-wrapping gradient structure spinning mechanism, method and application thereof, belonging to the technical field of ring spinning, in particular to a gradient-color spinning mechanism and method in which filament bundles change tension and naturally converge, couple and wrap and its uses. Background technique [0002] The spinning method of controllable gradient color directly on the spinning machine appeared after the composite spinning technology on the ring spinning machine in the 1940s and 1950s, that is, staple fiber / short fiber strand (S / S) After the compound spinning method, an innovative spinning method appeared, almost at the same time as the filament tow / short fiber (F / S) compound spinning. From the end of the 1960s to the 1970s, it was still a laboratory technology and not disclosed. The most essential difference between gradient color spinning and compound spinning is that in gradient color spinning, the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/34D02G3/38D01H13/04D01H13/10
CPCD01H13/04D01H13/10D02G3/34D02G3/346D02G3/38
Inventor 于伟东王勇刘洪玲刘庆年
Owner DONGHUA UNIV
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