Spinning frame having multi-stage condensation draft unit

A spinning frame and drafting technology, which is applied in the field of ring spinning frames, can solve the problems of unsatisfactory properties of textile yarns

Inactive Publication Date: 2004-03-24
MASCHINENFABRIK RIETER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ply properties of the textile yarns produced by this method are not satisfactory

Method used

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  • Spinning frame having multi-stage condensation draft unit
  • Spinning frame having multi-stage condensation draft unit
  • Spinning frame having multi-stage condensation draft unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] According to a first aspect of the invention, it relates to a spinning frame, in particular a ring spinning frame, which has at least one multistage drafting unit 13 with pairs of rollers 29, and consists of one or two roving bobbins 12 or One or two bar cans supply the fiber bundle, and a suction device 25 is arranged at or near its pair of outlet rollers 25, 26 at its pair of outlet rollers 25, 26, with a perforated area 35 all over its circumference above it. (suction device), along a path segment 15, on its circumference, moves together with one or more fiber bundles, creating a guiding surface for these fiber bundles, so as to constitute a coagulation stage, in which at least A fibrous web comprising a final draft, but at least not yet substantially twisted or not fully twisted, is condensed and / or bundled into compact fiber bundles 22, 22' preferably less than 1 mm wide, whereby along the following The path section 15 of its movement, directly radially within the ...

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PUM

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Abstract

The frame is equipped with a suction device 25 equipped with a perforation range 35 on a pair of exit rollers of a multi step drafting machine 13, and the suction device 25 provides a guiding plane for sliver to form a condensing step, set to form compact fiber strands by condensing the slivers in the condensing step, and a revolution changing device 52d is equipped on a drafting device 13 or a driving mechanism for drafting device, and revolutions of the individual roller pairs 29 become free from each other in relation to time that induces the compact fiber strands 22, 22' to receive a variable draft in time.

Description

technical field [0001] The invention relates to a spinning frame, especially a ring spinning frame with a multi-stage drafting unit, a pair of outlet rollers has a suction device, especially a suction roller, and the suction device has a Perforated area all over the circumference, which (suction roller), especially between the corresponding drafting unit outlet roller and the suction roller, forms a twist test gap, so that a twist test corresponding roller, along a path in Its circumference creates a guiding surface for separating here two parts of a tow or two tows supplied next to each other in order to form a coagulation stage in which the final drawing is already involved but still without twisting The fiber bundles are condensed and / or bundled into compact fiber bundles. Furthermore, the invention relates to the production of spun ply yarns. Background technique [0002] With previously known spinning frames of this type (cf. DE 19500036, DE 196 08697), each compact f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H5/32D01H1/02D01H1/22D01H1/30D01H5/36D01H5/66D01H5/72D01H5/74D01H13/04D02G3/34D02G3/36
CPCD01H5/72D01H5/36D02G3/34D01H5/74D02G3/367
Inventor L・古布泽尔J・温利
Owner MASCHINENFABRIK RIETER AG
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