A spinning device based on improved ring spinning and used for auxetic composite yarn with a uniform wrapping angle

A wrapping yarn and ring spinning technology, which is applied in the field of spinning, can solve problems such as strong limitations of spinning methods, unsuitability for continuous production, uneven yarn structure, etc., to achieve improved wrapping effect, simple spinning method, The effect of improving yarn quality

Inactive Publication Date: 2017-07-28
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the existing spinning devices and methods for auxetic composite yarns are still immature, and there are problems such as uneven yarn structure, strong spinning method limitations, and unsuitability for continuous production.

Method used

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  • A spinning device based on improved ring spinning and used for auxetic composite yarn with a uniform wrapping angle
  • A spinning device based on improved ring spinning and used for auxetic composite yarn with a uniform wrapping angle
  • A spinning device based on improved ring spinning and used for auxetic composite yarn with a uniform wrapping angle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1 Preparation of spandex / nylon auxetic composite yarn with controllable wrapping angle and uniform structure

[0042] A spinning device and method based on the improved ring spinning auxetic composite yarn with uniform wrapping angle of the present invention is used to prepare spandex / nylon auxetic composite yarn with controllable wrapping angle and uniform structure. Spandex and nylon multifilament are used as core yarn and wrapping yarn, and spandex monofilament bobbin 12 is placed on the roller 11, and spandex monofilament 13 is positively clamped by the first tension clip 14 on the guide bar 19 under the rotation of roller. Feed to the yarn splitter 27 of the drafting mechanism 2; the bobbin 16 of nylon multifilament is suspended on the upper beam 15, and the wrapped yarn 17 is drawn to the wrapped yarn by the second tension clamp 18 on the yarn guide rod 19 The nip of the additional roller 31 of the feeding control mechanism 3A; the spandex monofilament 13 ...

Embodiment 2

[0043] Example 2 Preparation of Spandex / UHMWPE Auxetic Composite Yarn with Controllable Wrapping Angle and Uniform Structure

[0044] Adopt a kind of spinning device and method of the auxetic composite yarn with uniform wrapping angle based on improved ring spinning of the present invention to implement the preparation of spandex / UHMWPE auxetic composite yarn with controllable wrapping angle and uniform structure, Spandex monofilament and ultra-high molecular weight polyethylene multifilament were respectively selected as the core yarn and wrapping yarn, and the rest of the operation steps were the same as those in Example 1, and will not be repeated here. The specific process parameters are shown in Table 1.

Embodiment 3

[0045] Example 3 Preparation of spandex / polyester high-strength yarn auxetic composite yarn with controllable wrapping angle and uniform structure

[0046] Adopt a kind of spinning device and method of the auxetic composite yarn with uniform wrapping angle based on improved ring spinning of the present invention to implement the preparation of spandex / polyester high-strength auxetic composite yarn with controllable wrapping angle and uniform structure. Spandex monofilament and polyester high-strength yarn are used as core yarn and wrapping yarn, and the rest of the operation steps are the same as in Example 1, and will not be repeated here. The specific process parameters are shown in Table 1.

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Abstract

The invention relates to a spinning device based on improved ring spinning and used for auxetic composite yarn with a uniform wrapping angle. The composite yarn is formed through spiral wrapping of core yarn and wrapping yarn at a certain diameter ratio and modulus ratio. The spinning device comprises a yarn supply mechanism, a drafting mechanism, and a twisting and winding mechanism and is characterized by further comprising a yarn feeding control mechanism and a wrapping angle control mechanism which are added on the basis of a traditional ring spinning machine, wherein the yarn feeding control mechanism comprises a core yarn feeding control mechanism and a wrapping yarn feeding control mechanism. The core yarn feeding control mechanism is main used for providing active feeding of core yarn and the wrapping angle control mechanism is located in front of and under front rollers to control an output angle of the wrapping yarn, so that auxetic composite yarn with a certain wrapping angle and a uniform, controllable and stable wrapping structure can be obtained. The spinning device is improved from a traditional ring spinning machine, has the advantages of easy operation of a spinning method, convenient implementation and low cost, and is suitable for continuous production, promotion and application.

Description

technical field [0001] The invention relates to a spinning device and method of an auxetic composite yarn based on improved ring spinning with controllable wrapping angle, uniform structure, stable spinning tension and convenient implementation of dual-filament or multi-filament yarns, belonging to spinning technology field. Background technique [0002] Auxetic material refers to a material with a negative Poisson’s ratio, that is, when it is stretched (or compressed) in a certain direction relative to traditional materials, it will shrink (or expand) perpendicular to the direction of the force. When stretched (or compressed) in a certain direction, it will expand (or shrink) perpendicular to the direction of the force. Auxetic yarn is also called negative poise ratio yarn. Under certain axial tension, the radial profile of the yarn increases. Studies have found that in addition to negative Poisson's ratio, auxetic materials also have other unique properties compared with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/36D01H13/02D01H1/18D01H13/32D01H5/22
CPCD01H1/18D01H5/22D01H13/02D01H13/32D02G3/36
Inventor 杜赵群刘赛何玲娥
Owner DONGHUA UNIV
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