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Method for removing and drawing a synthetic thread and a device for performing the method

A technique for drawing filaments and threads, applied in the field of devices implementing the method, can solve the problems of non-slip transmission, difficulty in drawing force, etc., and achieve the effects of relaxation, short contact length, and uniform heating

Active Publication Date: 2012-05-23
OERLIKON TEXTILE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In principle, the disadvantage of such cold-drawn threads is that very high stretching forces have to be generated, which lead to significant problems especially when producing several parallel-guided threads
Another disadvantage of this method is that in the case of a single winding of the guide sleeve of the godet, it is very difficult to transmit the drawing force always in the same way without slipping

Method used

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  • Method for removing and drawing a synthetic thread and a device for performing the method
  • Method for removing and drawing a synthetic thread and a device for performing the method
  • Method for removing and drawing a synthetic thread and a device for performing the method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] figure 1 A godet system of a first embodiment of the device according to the invention for carrying out the method according to the invention is shown.

[0035] This embodiment comprises two godet pairs 1.1 and 1.2, which are arranged side by side. The first godet pair 1.1 has two guide sleeves 2.1 and 2.2 driven at the same peripheral speed. The guide sleeves 2.1 and 2.2 of the godet pair 1.1 are arranged one above the other and are driven by separate electric motors 3.1 and 4.1. The electric motor 3.1 of the guide sleeve 2.1 is designed to be left-handed and drives the guide sleeve 2.1 in a counterclockwise rotation. The electric motor 4.1 is designed to be clockwise and drives the guide sleeve 2.2 to rotate clockwise. Therefore, the guide sleeves 2.1 and 2.2 rotate in opposite directions. Electric motors 3.1 and 4.1 are preferably operated via a common motor controller.

[0036] Each guide sleeve 2.1, 2.2 here has a heating device (not shown) in order to heat th...

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PUM

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Abstract

The invention relates to a method and a device for removing and drawing a synthetic thread to form a fully drawn yarn. The thread is formed by joining a plurality of extruded filaments and is guided by contact on the circumference of heated guide jackets of several driven galette pairs. In order to obtain a gentle and highly homogenized treatment of the filaments, the thread is guided in an S-shaped or Z-shaped thread course by a first galette pair having two guide jackets driven in opposite directions during the removal from a spinning zone and before the drawing. Thus, both sides of the thread can be brought directly into circumferential contact with the guide jackets for in order to heat the thread.

Description

technical field [0001] The invention relates to a method for drawing and drawing synthetic yarns into fully drawn yarns (FDY) according to the preamble of claim 1 and a method for carrying out the method according to the preamble of claim 11 device. Background technique [0002] It is known that in the manufacture of synthetic threads, especially for textile applications, multifilament threads are drawn more or less after melt spinning, depending on the type of thread to be produced. According to the degree of stretching, it is divided into so-called POY yarn and FDY yarn. POY yarns (pre-oriented yarns) have a pre-oriented, not yet drawn structure and are usually further processed into final yarns in a second process step, eg false twist texturing. In contrast, FDY yarns (fully drawn yarns) are completely drawn and can be used directly for further processing of flat textile products. [0003] The drawing of the synthetic thread takes place via driven guide sleeves of a pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/12
CPCD01D5/16D01D5/098D01D10/02D02J1/22D02J13/005
Inventor D·岑岑
Owner OERLIKON TEXTILE GMBH & CO KG
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