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Gradual composite spinning mechanism, method and application of variable tension pre-moving coupling wrapping

A composite spinning and tension technology, which is applied in spinning machines, yarns, textiles and papermaking, etc., can solve the problems of small gradient color span, large unevenness of yarn sliver, poor color changing effect, etc., and achieve high yarn uniformity , improved yarn strength, simple and effective mechanism

Active Publication Date: 2019-06-25
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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  • Gradual composite spinning mechanism, method and application of variable tension pre-moving coupling wrapping
  • Gradual composite spinning mechanism, method and application of variable tension pre-moving coupling wrapping
  • Gradual composite spinning mechanism, method and application of variable tension pre-moving coupling wrapping

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Take one black wool roving bobbin and one white polyester filament bobbin. 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 The spindle speed is 360, the spindle speed is 10500rpm, and the polyester filaments are gathered at point A under the action of a higher tension of 30cN, forming the maximum wrapping of polyester filaments in layered covering by short hair fibers; with the set yarn gradient Color waveform (triangular wave) and wavelength (24m), move the converging needle so that it gradually moves from position A to position B. Simultaneously, the tension of the polyester filaments decreases gradually, and the wr...

Embodiment 2

[0057] 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 a 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 cotton staple fibers on polyester filaments in a layered covering type; with the set yarn gradient Color waveform (trapezoidal wave) and wavelength (16m), move the converging needle so that it gradually moves from A to B. Simultaneously, the tension of polyester filaments decreases gradually, and the wrapping ratio of cotton staple f...

Embodiment 3

[0059] Take one bobbin of black linen roving and one bobbin of white viscose filament. After the flax roving is positioned and gathered by the buncher, it is fed into the nip of the front roller with the natural tension of drafting and 4mm 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 a tex is 360, the spindle speed is 11500rpm, the viscose filaments gather at point A under the action of a higher tension of 25cN, forming the largest wrapping of the viscose filaments in the layered covering of the flax strands; with the set yarn gradation Color waveform (double frequency conversion triangular wave) and wavelength (64m), move the converging needle so that it moves from A position to B position step by step. Simultaneously, the tension of the viscose filament decreases gradually, and t...

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 variable-tension pre-moving coupling wrapped gradual-change composite spinning mechanism and method and application of the mechanism. The mechanism is composed of a convergence needle, a tension controller, a buncher and a generation and execution mechanism, wherein the convergence needle is located on the front portion of a front roller and can move left and right on the horizontal line of the convergence point of a tension-free filament or yarn and a short fiber strand, the tension controller is synchronous with the convergence needle in movement and can control the tension of the filament or the yarn, the buncher has position fixation functions, and the generation and execution mechanism horizontally move left and right. According to the composite spinning method, through periodic or variable-period left and right movement of the convergence needle and the synchronous increase and decrease of tension of the filament or the yarn, winding of the filament F or the yarn Y around the short fiber strand S is achieved, otherwise, the winding of the short fiber strand S around the filament F or the yarn Y is achieved, and thus S / F or S / Y composite yarn which gradually changes in the aspect of periodic or variable-period colors, surface fiber component appearance forms and mechanical properties. The obtained gradual-change composite yarn can be directly used for fabrics having special colors or functional texture, structural texture and mechanical property distribution characteristics.

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 coupling-wrapping gradient color spinning mechanism, method and application thereof. 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 fiber content changes along the axial direction of 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): D02G3/34D02G3/38D01H5/72D01H13/10
CPCD01H5/72D01H13/10D02G3/346D02G3/38
Inventor 于伟东王勇刘洪玲刘庆年
Owner DONGHUA UNIV
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