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

A technology of linear density and blending ratio, applied in the directions of drafting equipment, yarn, spinning machine, etc., can solve the problems of poor pattern reproducibility and 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 four-component synchronous drafting
  • Method and device for regulating yarn linear density and blending ratio by four-component synchronous drafting
  • Method and device for regulating yarn linear density and blending ratio by four-component synchronous drafting

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Embodiment 1

[0071] A method for regulating yarn linear density and blending ratio by four-component synchronous drafting, which specifically includes:

[0072] 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;

[0073] 2) The primary drafting unit includes combined rear rollers and middle rollers 3; combined rear rollers have four rotational degrees of freedom, including first rear rollers 6, second rear rollers 8, and third rear rollers arranged side by side on the same rear roller shaft. The rear roller 10 and the fourth rear roller 12; 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, and 5, 7, 9, 11 are the four rollers corresponding to the four rear rollers. top rollers. 2 is the top roller corresponding to the front roller 1. o 1 O' 1 , O 2 O' 2 , O 3 O' 3 Represent the axis lines of rea...

Embodiment 2

[0121] A device for spinning multicolored slub yarn by four-component synchronous drafting includes a control system and an actuator, the executive agency includes a four-component split-and-combined synchronous secondary drafting mechanism, a twisting mechanism, and a winding forming mechanism; The first-level drafting mechanism includes a first-level drafting unit and a second-level drafting unit;

[0122] like figure 1 and 2 As shown, the first-stage drafting unit includes a combined back roller 15 and a middle roller 3; the combined back roller 15 has four rotational degrees of freedom, and includes the first back roller 6 and the second back roller arranged side by side on the same back roller shaft 21 8. The third rear roller 10 and the fourth rear roller 12; 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, and 5, 7, 9, 11 are the top rollers corresponding to the four rear rollers. ...

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Abstract

The invention discloses a method for regulating and controlling linear density of yarn and blending ratio through four-component asynchronous-synchronous drawing. A drawing and twisting system comprises a first stage drawing unit and a second stage drawing unit which are arranged from front to rear. The first stage drawing unit comprises a combined rear roller and a middle roller. The second stage drawing unit comprises a front roller and the middle roller. Based on a datum linear speed of a datum line segment, rotational speeds of a first rear roller, a second rear roller, a third rear roller and / or the fourth rear roller of the combined rear roller can be raised or reduced to dynamically adjust the linear density or / and the blending ratio of yarn (Y) in an i segment on line. Color mixture of multi-point yarns, slubby yarns and big-belly yarns produced by the method and device provided by the invention is more uniform and accurate, the blending effect can be more stable through the listed constant set rotational speed, colors of yarns produced by different batches are almost the same.

Description

technical field [0001] The invention relates to the field of spinning in textile engineering, in particular to a method and a device for regulating yarn linear density and blending ratio by four-component synchronous 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, the linear density or the thickness of the appearance will change. If the blending ratio can be changed while the linear density of the yarn is changed, the yarn with both linear density and color can be formed. Fancy yarn, we define this type of yarn as colorful yarn with variable linear density, which can be divided into colorful slub yarn, colorful belly yarn, and colorful dot yarn. [0003] At present, the method for producing variable linear density yarn by ring spinning basically uses the middle and rear rollers to feed a roving sliver respectively, an...

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): D02G3/04D01H5/22D01H13/32
Inventor 高卫东薛元郭明瑞王鸿博
Owner JIANGNAN UNIV
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