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Aggregated type spun yarn super large drafting device and spinning technology

A super-drafting and spun yarn technology, which is applied in spinning machines, drafting equipment, textiles and papermaking, etc., can solve the problems of low yarn quality, low yarn efficiency, and high production costs, and achieve increased tightness and improved Yarn structure, anti-diffusion effect

Active Publication Date: 2017-10-10
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the problems of complex structure, high production cost, low yarn quality and low yarn efficiency in the existing ultra-large drafting technology, and provide a simple structure, low cost, high yarn quality and efficiency High spinning super large drafting device

Method used

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  • Aggregated type spun yarn super large drafting device and spinning technology
  • Aggregated type spun yarn super large drafting device and spinning technology
  • Aggregated type spun yarn super large drafting device and spinning technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A concentrated spun yarn super large drafting device, such as figure 1 As shown, the drafting device is a four-roller drafting system, including two main drafting areas and a post-drafting area. The main drafting zone is successively the rear main drafting zone and the front main drafting zone, and the drafting rear zone, the rear main drafting zone and the front main drafting zone are successively closely adjacent to each other.

[0065] The drafting rear area is composed of the rear area traction member and the rear area clamping member; the rear area traction member is the rear top roller 11 of the rear main drafting area and the rear roller 12 of the rear main drafting area matched with it; the rear area clamping The components are the rear top roller 13 in the drafting area and the rear roller 14 in the drafting area matched with it. The distance between the centers of the rear rollers 14 is 25.1 mm.

[0066]The rear main drafting area is composed of the rear mai...

Embodiment 2

[0076] A kind of ladder gathering type spun yarn super large drafting device, such as figure 2 As shown, the drafting device is a four-roller drafting system, which is basically the same in structure as in Example 1, except that the rear upper pin is as Figure 13 As shown, there is an accumulation groove on the bonding surface of the strands, which is the accumulation groove 8 in the rear main drafting area. The track of the accumulation groove is parabolic. The depth of the accumulation groove gradually deepens according to the running direction of the strands. The inlet width of the accumulation groove is 20mm, the outlet width is 3.25mm, and the maximum outlet depth is 4mm. The rear upper pin 9 and the rear lower pin 10 are made of high wear-resistant alloy steel. And after ceramic treatment, its surface roughness is 3.20μm; the entrance width of the collecting groove in the front main drafting area is 3.25mm, the exit width is 0.1mm, and the maximum exit depth is 0.1mm; ...

Embodiment 3

[0081] A concentrated spun yarn super large drafting device, such as image 3 As shown, the drafting device is a four-roller drafting system, and its structure is basically the same as that of Embodiment 1, except that the lower end surface of the upper pin and the upper end surface of the lower pin cooperate with each other in the front main drafting zone and the rear main drafting zone It is a unimodal structure, and the unimodal is formed by the upper end of the lower pin protruding upwards, and the gathering grooves of the two upper pins are as follows Figure 14 As shown, the trajectory is an "eight" shape, the ratio of the peak bottom width to peak height in the front main drafting area is 1:0.10, and the ratio of peak bottom width to peak height in the rear main drafting area is 1:1.80; The entrance width of the gathering groove in the stretching area is 1.5mm, the exit width is 0.8mm, and the maximum exit depth is 1mm. The surface roughness of the front upper pin and t...

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Abstract

The invention relates to an aggregated type spun yarn super large drafting device and a spinning technology. The aggregated type spun yarn super large drafting device at least comprises two main drafting areas and one post drafting area, and a fiber strand passes through the post drafting area and then enters the two main drafting areas, respectively a rear main drafting area and a front main drafting area in sequence in the running direction of the fiber strand; rollers / leather rollers are arranged in the front and back of all the areas, and the main drafting areas are further provided with main drafting area upper / lower pins, leather rings and tension rollers, wherein aggregation grooves are formed in the adhering surfaces of the fiber strands of the front main drafting area upper pins, the groove width is reduced in the running direction of the fiber strands, and the groove depth is increased in the running direction of the fiber strands. A drawn sliver firstly enters the post drafting area and is subjected to pre-drafting, then enters a rear main drafting area to be subjected to primary drafting, afterwards enters a front main drafting area to be aggregated, and finally is rolled into spun yarn after being twisted. In the aggregated type spun yarn super large drafting device and the spinning technology, super large drafting is achieved by reducing the length of a floating area and adding a main drafting area, the roving procedure is omitted, the technological procedure is shortened, the yarn quality and resultant yarn efficiency are improved, and the aggregated type spun yarn super large drafting device have the advantages of being simple in structural technology, easy to operate and low in cost.

Description

technical field [0001] The invention belongs to the field of spinning machinery devices, and relates to a novel spun yarn super-drafting device, in particular to a compact spun super-large drafting device and a spinning process. It is suitable for the reconstruction of old spinning frames. Background technique [0002] With the development of society and the advancement of science and technology, the level of textile technology has also been greatly improved in the continuous development. Various new spinning technologies have emerged as the times require, and the various processes of the spinning system have been greatly optimized. In the process from roving to spun yarn, the quality of spun yarn has a certain impact on the quality of downstream products, and the spun yarn drafting system directly affects the yarn evenness, hairiness and effective spinning, so a reasonable and efficient drafting system The system has a great influence on the yarn quality. [0003] At pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H5/22D01H5/88D01H5/72D01H5/46
CPCD01H5/22D01H5/46D01H5/72D01H5/88
Inventor 刘艳孜崔月敏程隆棣俞建勇张瑞云薛文良纪峰王妮杨明华金宏健张新民
Owner DONGHUA UNIV
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