Drafting mechanism with multiple ribbon guides

A fiber tape and guide technology, applied in drafting equipment, fabric elongation, spinning machine, etc., can solve the problems of fiber tape width drafting, affecting the quality of fiber tape, etc.

Active Publication Date: 2020-11-13
RIETER INGOLSTADT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This affects the quality of the ribbon, since the ribbon in the drafting mechanism can perform lateral movements, which can lead to drafting with different ribbon widths

Method used

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  • Drafting mechanism with multiple ribbon guides
  • Drafting mechanism with multiple ribbon guides
  • Drafting mechanism with multiple ribbon guides

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] figure 1 The drafting unit 1 with three roller pairs 3 , 4 , 5 and three fiber web guides 8 , 9 , 10 is shown in side view. The three roll pairs 3 , 4 , 5 here comprise an input roll pair 3 , an intermediate roll pair 4 and an output roll pair 5 . The respective roll pair 3, 4, 5 also comprises at least one lower roll 6a-6c and at least one upper roll 7a-7d, respectively. The roll pairs 3 , 4 , 5 have a direction of rotation DR1 , which is shown by way of example on the input roll pair 3 . The direction of rotation of the lower roll 6 a and the upper roll 7 a is oriented oppositely, so that the fiber strip 2 , which is guided between the pair of feed rolls 3 , is entrained. The fiber strip 2 is conveyed in its direction of travel LR by the drafting unit 1 , so that it is guided through the intermediate pair of rollers 4 after entering the pair of rollers 3 . The lower roll 6 b and the upper roll 7 b of the intermediate roll pair 4 here have the same direction of rota...

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PUM

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Abstract

The invention relates to a drafting mechanism used to draft a fiber belt (2). The drafting mechanism comprises at least three roller pairs (3, 4, 5) which are successively disposed along an advancing direction (LR) of the fiber belt (2), wherein each roller pair comprises at least one lower roller (6a-6c) and at least one upper roller (7a-7b); and the fiber belt (2) is guided to pass through all the roller pairs (3, 4, 5). The drafting mechanism also comprises at least one fiber belt guide device (8, 9, 10), wherein the fiber belt (2) is guided by the fiber belt guide device; the at least one first fiber belt guide device (8) is disposed in front of the drafting mechanism (1) along the advancing direction (LR) of the fiber belt (2); and at least one second fiber belt guide device (9) is disposed behind the drafting mechanism (1) along the advancing direction (LR) of the fiber belt (2). According to the invention, the third fiber belt guide device (10) is disposed between the two roller pairs (3, 4, 5) and / or in front of the first roller pair (3) along the advancing direction (LR) of the fiber belt (2), so that the fiber belt (2) can be guided from the side face.

Description

technical field [0001] The invention relates to a drafting mechanism for drafting a fiber strip, which has at least three roller pairs arranged one behind the other in the direction of travel of the fiber strip. These roll pairs each comprise at least one lower roll and at least one upper roll, wherein the fiber strip is guided between the individual roll pairs. Furthermore, the drafting mechanism has at least one fiber strip guide, by means of which the fiber strip is guided, wherein at least one first fiber strip guide is arranged upstream of the drafting mechanism in the direction of travel of the fiber strip, and at least one second fiber strip The guide is arranged behind the drafting mechanism along the traveling direction of the fiber strip. Background technique [0002] The drafting mechanism in operation currently has a fleece funnel which is arranged behind the pair of rollers. The wool funnel here combines the spread fiber strips into fiber bundles with an appro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06C3/00
CPCD06C3/00D01H5/72
Inventor W·斯莫克阿明·布伦纳
Owner RIETER INGOLSTADT GMBH
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