Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (09): 42-47.doi: 10.13475/j.fzxb.20180601806

• Textile Engineering • Previous Articles     Next Articles

Influence of compact spinning air guide element shifting on compaction effect

MA Xiaolin1, TANG Xinjun1, SONG Junyan1(), LIU Xia1, ZHANG Yugao2   

  1. 1. Xinjiang Esquel Textile Co., Ltd., Urumchi, Xinjiang 830054, China
    2. Guangdong Esquel Textile Co., Ltd., Foshan, Guangdong 528600, China
  • Received:2018-06-01 Revised:2019-06-14 Online:2019-09-15 Published:2019-09-23
  • Contact: SONG Junyan E-mail:songjy@esquel.com

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Abstract:

The air guide element of the third generation Rieter compact system shifts in production line, in order to analyze the influence to the compacting effect, five feature points including the center point, 1.5 mm and 2.5 mm shifting to left and right were selected. Fluent software were adopted to simulate the flow field and using CFD software to analyze the results of the simulation. Results show that the shift of 1.5 mm and 2.5 mm causes variation in airflow velocity and hydrostatic pressure. Spinning experiment verifies the simulation analysis results. It is concluded that when the shifts is 1.5 mm, the yarn quality variation is small, but when the shifts is 2.5 mm the yarn quality varies obviously, and the yarn evenness increases by 3% and hairiness increases by 8%.

Key words: compacting system, air guide element, shifting, flow field simulation, compacting effect

CLC Number: 

  • TS112

Fig.1

Schematic diagram of compacting system with nesting zone"

Fig.2

Schematic diagram of nesting zone extractable model"

Fig.3

Schematic diagram of feature face. (a) Feature face 1; (b) Feature face 2"

Fig.4

Flow velocity nephogram of feature face 1. (a) Center position; (b) Left 1.5 mm shifting; (c) Left 2.5 mm shifting"

Fig.5

Characteristic line of velocity"

Fig.6

Flow static pressure nephogram of feature face 1. (a) Center position; (b) Left 1.5 mm shifting; (c) Left 2.5 mm shifting"

Fig.7

Characteristic line of static pressure"

Tab.1

Quality data table of 9.72 tex"

位置 偏移/mm 条干CVm/% 毛羽指数H 强力/cN
L 2.5 12.45 2.98 225
L 1.5 12.29 2.70 229
M 0.0 12.15 2.70 235
R 1.5 12.21 2.66 232
R 2.5 12.55 3.10 218

Tab.2

Quality data table of 7.28 tex"

位置 偏移/mm 条干CVm/% 毛羽指数H 强力/cN
L 2.5 14.22 3.21 153
L 1.5 14.01 3.07 154
M 0.0 13.99 3.08 154
R 1.5 14.11 3.18 152
R 2.5 14.51 3.34 155
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