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Method for open-end rotor spinning

A technology of air spinning and spinning cup, which is applied in the direction of spinning machine, open end spinning machine, continuous winding spinning machine, etc. It can solve the problem of damage to yarn structure or fiber orientation and fiber draft, and limit air spinning Yarn application range and other issues

Inactive Publication Date: 2006-10-18
OERLIKON TEXTILE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This impairs the yarn structure or fiber orientation and fiber draft and, as a result, limits the range of applications for open-end spinning

Method used

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  • Method for open-end rotor spinning
  • Method for open-end rotor spinning
  • Method for open-end rotor spinning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] in Figure 1a , Shows the splicing stage of a single fiber 4 when spinning using the front access zone, that is, when the shank 3 is aligned with the spinning cup, and the single fiber 4 is caught by the yarn shank 3 at its front end. When entering zone 5, it reaches the rotor groove 1 from the fiber sliding surface 2 (the first stage). It can be clearly seen that in the yarn handle 3, the fiber turning direction is the Z twist direction. On the contrary, as can be seen in the second stage, the fiber 4 whose head is grasped is first wound around the outer layer of yarn in the S twist direction. As the doffing VL advances, the 4 ends of the fiber approach the point where other parts of the fiber are instantaneously wound around the outer layer of the yarn. In the fourth stage, the direction of the fiber 4 changes from S to Z, in which multiple concentrated turns may occur. Together, these loops bind the yarn and form so-called loops, which may interfere with subsequent proce...

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PUM

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Abstract

It is the object of the invention to propose a method for open-end rotor spinning, wherein the formation of cover yarn, in particular the so-called "belly bands", is at least appreciably reduced.In accordance with the invention, the fiber flow exiting a fiber guide channel has a directional component in the direction of rotation of the rotor, while the yarn leg (3) extending, from the draw-off nozzle to the rotor groove, is curved opposite the direction of rotation of the rotor, at least near the rotor groove (1), during the spinning process. The creation of this direction of curvature of the yarn leg (3) takes place during the piecing process.

Description

Technical field [0001] The present invention relates to an air spinning method, in which fibers to be spun are fed into the spinning cup through a fiber guide channel and are collected in the spinning cup groove with the largest inner diameter of the spinning cup, and the fibers are rotated in a spinning cup through the rotation of the spinning cup. The so-called insertion zone is twisted into the yarn end and is led out as a finished yarn through a central yarn guide tube arranged approximately in a plane with a rotor groove. Background technique [0002] The development of air spinning can be traced back to a long time ago, and this method was only put into industrial application in the 1960s. Not only in the peripheral area, that is, in the peripheral area where the fiber sliver is transported, the single fiber is opened, the single fiber is sent to the spinning cup, and the fiber is drawn and wound, but also in the core area of ​​the fiber, that is, in the spinning cup Among ...

Claims

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Application Information

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IPC IPC(8): D01H4/08D01H4/50D01H4/24D02H1/00
CPCD01H4/24D01H4/50
Inventor J·梅耶尔M·拉斯曼
Owner OERLIKON TEXTILE GMBH & CO KG
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