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Drawing frame for a spinning machine

A drafting device and spinning machine technology, applied in the field of aprons, can solve the problems of stick-slip effect, increased wear, premature replacement of aprons, etc., and achieve the effect of wear resistance and friction coefficient

Inactive Publication Date: 2003-10-15
RIETER INGOLSTADT SPINNEREIMASCHENBAU AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also leads to increased wear, which leads to premature apron replacement
In addition, the apron does not slide smoothly on its guides, creating the so-called stick-slip effect, which has a negative effect on the quality of the textile fibers, especially their uniformity

Method used

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  • Drawing frame for a spinning machine
  • Drawing frame for a spinning machine
  • Drawing frame for a spinning machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] figure 1 A sectional view of the drafting device of the ring spinning machine of the present invention is shown. The drafting device 1 is a three-roller double-apron drafting device. The drafting device 1 comprises three driven bottom rollers 11 (Unterzylindern), on which three top rollers 12 (Oberwalzen) are mounted. The pre-drafting zone 13 is followed by a main drafting zone 14 in which two aprons 2 for guiding the fibers are arranged in the main drafting zone 14 for guiding the fibers. To this end, the middle roller 3 (Mittelzylinder) and the opposite top roller 31 (Oberwalze) are each wound by their aprons 21 , 22 , which are guided in the direction of the delivery roller pair 32 by means of the guide 4 . Two aprons 2 slide on the guide 4, and they are guided from the guide 4 by the middle roller 3 and the top roller 31 to the wedge-shaped gap of the output roller pair. The apron of top roller 31 is placed on the apron 2 of middle roller 3. The bottom apron 21 ...

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PUM

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Abstract

The drawing frame especially for a ring spinning frame has at least two sets of drawing frame cylinders and the apron band for guiding a fiber. A guide means (4, 41) acts so as to guide and slide the apron band (2, 21, 22, 23). Simultaneously, a combination of materials having little friction with the apron band (2, 21, 22, 23) is aimed at. In an advantageous practical embodiment, the apron band (2, 21, 22, 23) can have an additional part engaging with a notch of a shaft (3), and the apron band (2, 21, 22, 23) can be pressed to the driven shaft (3) by a pressing roll.

Description

technical field [0001] The invention relates to a drafting device for a spinning machine according to the preamble of claim 1 and an apron for a drafting device for a spinning machine according to the preamble of claim 19 . Background technique [0002] In a drafting device of a textile machine, the fed roving is generally guided over a plurality of roller pairs arranged next to each other and at least one pair of aprons. As the speed of successive roller pairs increases, the roller pairs arranged one after the other stretch the fed fiber sliver. In such a case, the fiber is clamped between the upper and lower rollers and, accordingly, between the upper and lower aprons. In order to process short-staple fibers, three-roller double-apron drafting devices are generally used in current ring spinning machines. It consists of driven and generally grooved steel rollers which form the bottom rollers of the drafting unit. [0003] A top roller, generally held on a pressure arm, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H1/02D01H5/86
CPCD01H5/86
Inventor 沃纳·施特拉塞尔哈拉尔德·施维佩尔
Owner RIETER INGOLSTADT SPINNEREIMASCHENBAU AG
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