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Drawing detwister in back area for spinning frame

A spinning frame and drafting technology, which is applied to spinning frames, drafting equipment, and untwisting devices for processing textile materials, etc., can solve problems such as affecting the spinning quality and disorder of roving sliver fibers, and achieves reliable work and low cost. , the effect of simple structure

Inactive Publication Date: 2009-04-29
施景琪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the roving has a certain twist, it has a certain drafting force. To achieve the purpose of normal drafting, the holding force must be greater than the drafting force. yarn quality

Method used

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  • Drawing detwister in back area for spinning frame
  • Drawing detwister in back area for spinning frame
  • Drawing detwister in back area for spinning frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Embodiment: a drafting and untwisting device for the rear area of ​​a spinning frame, which is provided with a bracket and at least one roller, the roller is movably sleeved on the roller shaft, the roller shaft is fixed on the bracket, and the roller peripheral surface is provided with There are trumpet-shaped grooves for the roving strands to pass through, and there is a certain angle between the direction of the circular rotation of the horn-shaped grooves and the direction of the roving strands.

[0021] Calculated according to the acute angle direction, the included angle is between 10 degrees and 30 degrees.

[0022] There are first and second two rollers, and the two rollers are respectively movably sleeved on the two roller shafts, and the two roller shafts are respectively fixed on the same side of the bracket, and the second included angle between the two roller shafts is 15 degrees to 45 degrees between,

[0023] The groove is V-shaped.

[0024] The diamete...

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Abstract

The invention discloses a back zone draft untwisting device for a spinning machine. The device is provided with a bracket which is arranged on transverse flat iron corresponding to a yarn guiding trumpet, and is at least provided with a roller. The roller is moveably sleeved on a roller shaft; the roller shaft is fixed on the bracket; the circumferential surface of the roller is provided with a trumpet type groove for coarse roving to pass through; and the circumferential rotating trend of the groove and the trend of the coarse yarn have certain included angle. The strands of the coarse roving can reduce certain twist number when passing through the roller so as to reduce drafting force. The untwisting device is arranged on the transverse flat iron corresponding to the yarn guiding trumpet, moves along with the strands of the coarse roving in the transverse direction, obviously reduces the back zone drafting force, is favorable for increasing back zone drafting times, and is favorable for improving the front zone draft efficiency and total draft times, so the untwisting device has certain practical use for improving the spinning quality and reducing production cost.

Description

technical field [0001] The invention relates to a component used for a drafting device of a spinning frame, which is used for untwisting roving in the spinning drafting process. Background technique [0002] At present, the draft ratio in the rear area of ​​the spinning frame at home and abroad is generally not high, although there are several ways to increase the draft ratio in the rear area, such as the INA-V drafting device of the German Ina Company, the four-rubber drafting device, and the use of pressure Rod untwisting etc., but all can not reach expected effect through actual trial. [0003] According to the analysis, the nip of the middle roller, which is responsible for drafting in the back area, is composed of upper and lower rubber rings. The grip force of the nip on the fibers is relatively weak, unlike the nip of the front roller, which is composed of rubber rollers and bottom rollers with tooth grooves. Composed, the grip on the fibers is relatively good. Beca...

Claims

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Application Information

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IPC IPC(8): D01H5/70D06B23/08
Inventor 施景琪
Owner 施景琪
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