Method and apparatus for manufacturing slalom false twisting on ring yarn

A technology of yarn and false twisting, which is applied in the spinning field of manufacturing single-ply ring-spun yarn, and can solve the problems that the yarn splicing and doffing process cannot fully meet the actual needs of mass production.

Inactive Publication Date: 2010-02-10
THE HONG KONG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The yarn piecing and doffing process cannot fully meet the actual needs of mass production in the textile industry

Method used

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  • Method and apparatus for manufacturing slalom false twisting on ring yarn
  • Method and apparatus for manufacturing slalom false twisting on ring yarn
  • Method and apparatus for manufacturing slalom false twisting on ring yarn

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Embodiment Construction

[0032] figure 1 and figure 2 A side plan view and a schematic perspective view of a spinning device according to an exemplary embodiment of the present invention are shown, respectively. Such as figure 1 and figure 2 As shown, a roving 101 is conveyed via a drafting system 103, 105 and 107 comprising a pair of back drafting rollers 103, a pair of aprons 105 and a pair of front drafting rollers (front drafting roller)107. The upper belt 111 of the false twisting device 102 twists the drawn roving to form an initial single-ply yarn, wherein the operation of the upper belt 111 provides false twist to the yarn. Immediately after the false twisting step by means of the upper belt 111 serving as the first twisting point, the combined twist of the second twist in the same direction as the first twist and the third twist in the opposite direction is applied to the initial single-ply yarn 106, For the production of the final single-ply ring yarn, wherein the running of the yarn ...

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PUM

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Abstract

A process and apparatus for manufacturing a singles ring yarn, which utilizes double belts (111,113) as a false twist device and incorporates it in a conventional ring spinning machine for producing asingles ring yarn. In this process, double-belts are applied, and thus two twisting points, instead of one twisting point, are applied for the false twisting of the yarn, which improves the false twist efficiency. Accordingly, the ratio of the velocity of the belt to the delivery speed of the yarn is controlled and the wrapping angle of the yarn on the belts is adjusted in order to obtain the desired property of the final singles ring yarn. The process can enhance the strength of fiber strand at the spinning triangle and thus ensure that yarns are spun in normal conditions at a low twist multiplier, which is unable to be obtained by a conventional ring spinning machine.

Description

technical field [0001] The present invention relates to spinning technology for the manufacture of single-ply ring-spun yarns. In particular, the invention relates to a method and a device for improving the yarn quality by using a false twist device with two false twist points to clamp the yarn between two belts and introducing said false twist device into a conventional spinning machine. Performance and fabric performance and improve false twist efficiency and ease of operation. The false twist efficiency of the yarn can be controlled and therefore the properties of the final single-ply ring yarn can be controlled. Background technique [0002] Twisting is an important step in short staple spinning. In this process, the yarn is elastically twisted and deformed to obtain sufficient strength, abrasion resistance and smoothness. However, as a negative effect, the yarn also produces a large amount of residual torque or twist instability. The twist instability of the yarn wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H1/02D01H1/10D01H1/11
CPCD01H13/08D01H7/923D01H5/28D01H1/11D02G3/328
Inventor 陶肖明华涛徐宾刚冯杰
Owner THE HONG KONG POLYTECHNIC UNIV
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