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Method and device for regulating yarn linear density and blending ratio by five-component synchronous drafting

A technology of linear density and blending ratio, which is applied in drafting equipment, spinning machines, textiles and papermaking, etc. It can solve the problems of poor pattern reproducibility and the inability to randomly adjust the yarn blending ratio online

Active Publication Date: 2018-10-30
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] ① When two different raw materials (or different colors) of roving are used as the main and auxiliary yarn strands, the blending ratio (color mixing ratio) of the yarn cannot be adjusted randomly online; the blending ratio (color mixing ratio) cannot be adjusted while adjusting the thickness of the yarn The change
[0007] ③ The reproducibility of the pattern is poor

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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  • Method and device for regulating yarn linear density and blending ratio by five-component synchronous drafting
  • Method and device for regulating yarn linear density and blending ratio by five-component synchronous drafting
  • Method and device for regulating yarn linear density and blending ratio by five-component synchronous drafting

Examples

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Embodiment 1

[0076] A method for regulating yarn linear density and blending ratio by five-component synchronous drafting, specifically comprising:

[0077] 1) if Figure 1-4 As shown, the drafting and twisting system includes a primary drafting unit and a secondary drafting unit arranged before and after;

[0078] 2) The primary drafting unit includes combined rear rollers and middle rollers; the combined rear rollers have five rotational degrees of freedom, which include the first rear roller, the second rear roller, and the third rear roller arranged side by side on the same rear roller shaft , the fourth rear roller and the fifth rear roller; the first rear roller, the second rear roller, the third rear roller, the fourth rear roller and the fifth rear roller respectively at speed V h1 , V h2 , V h3 , V h4 and V h5 movement; middle roller at speed V z The speed rotation; The secondary synchronous drafting unit includes the front roller and the middle roller; The front roller rota...

Embodiment 2

[0133] A device for spinning colorful slub and dotted yarns based on five-component two-stage drafting includes a control system and an actuator. mechanism; the secondary drafting mechanism includes a primary drafting unit and a secondary drafting unit;

[0134] Such as figure 1 and 2 As shown, the first-stage drafting unit includes a combined rear roller 15 and a middle roller 3; the combined rear roller 15 has five rotational degrees of freedom, and includes the first rear roller 6 and the second rear roller arranged side by side on the same rear roller shaft 20 8. The third rear roller 10, the fourth rear roller 12 and the fifth rear roller 14; the secondary drafting unit includes the front roller 1 and the middle roller 3. 4 is the top roller corresponding to the middle roller 3, 5, 7, 9, 11 and 13 are five top rollers corresponding to five back rollers. 2 is the top roller corresponding to the front roller 1.

[0135] Such as figure 2 As shown, there is a 5-degree-o...

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 discloses a five-component asynchronous drafting method for regulating yarn linear density and blending ratio. It specifically includes a drafting and twisting system including a first-level drafting unit and a second-level drafting unit arranged before and after; The drafting unit includes the combined rear roller and the middle roller; the secondary drafting unit includes the front roller. Pull and the middle roller; on the basis of the baseline linear speed of the baseline segment, increase or decrease the first back roller, the second back roller, the third back roller, the fourth back roller and / or the fifth back roller on the combined back roller The rotation speed realizes the online dynamic adjustment of the linear density or / and blending ratio of the i-th yarn Y. The color mixing of dot yarn, slub yarn and big belly yarn produced by the method and device of the present invention is more uniform and accurate. By rotating at a constant set speed listed in the control, the blending effect is ensured to be more stable, even if different batches of yarn are produced. The color difference of the yarn will not change significantly.

Description

technical field [0001] The invention relates to the field of spinning in textile engineering, in particular to a method and device for regulating yarn linear density and blending ratio by five-component synchronous two-stage drafting. Background technique [0002] Yarn is an elongated fiber assembly formed by twisting fibers in parallel orientation. When the fibers are not evenly distributed in the length direction of the yarn, its linear density (or appearance) will increase a dynamic linear density (dynamic thickness) on the basis of the reference linear density (reference thickness), resulting in the yarn line Density (or thickness) changes. According to the size of this uneven distribution, it can be classified into slub yarn, dot yarn, etc., or collectively referred to as fancy yarn with linear density change. If the blending ratio can be changed while the linear density of the yarn is changed, fancy yarns with variable linear density and color can be formed. We defin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01H5/36
CPCD01H5/36
Inventor 高卫东薛元郭明瑞王鸿博
Owner JIANGNAN UNIV
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