Pressure distribution in the drafting zone measured by film pressure sensors

Qian, Lili; Meng, Chaoran

doi:10.1177/00405175221136293

Cited by 3 publications

(3 citation statements)

References 9 publications

(12 reference statements)

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“…In Equation (10), CV ot is calculated from the fiber idealized random arrangement with the output sliver linear density. 23,24 Thus, in comparison with the previous study, 3 the sliver irregularity caused by the fiber acceleration motion during the drafting process could be meticulously divided into the theoretical irregularity, CV dt , and the additional irregularity, CV da .…”

Section: Calculation Of Sliver Irregularity Caused By the Fiber Accel...mentioning

confidence: 99%

“…[1][2][3][4][5][6] Currently, considerable efforts had been committed to study the influence of the drafting process on sliver irregularity. Balasubramanian and Bhatnagar, 7 Graham and Bragg, 8 Siddiqui et al 9 and Qian and Yu 10 studied the effect of the drafting parameters on the drafting efficiency by analyzing the influence of the drafting force experimentally. Recently, Li et al, 11 Wang 12 and Khurshi et al 13 measured and optimized the drafting parameters of different drafting mechanisms.…”

mentioning

confidence: 99%

“…Balasubramanian and Bhatnagar, 7 Graham and Bragg, 8 Siddiqui et al. 9 and Qian and Yu 10 studied the effect of the drafting parameters on the drafting efficiency by analyzing the influence of the drafting force experimentally. Recently, Li et al., 11 Wang 12 and Khurshi et al.…”

mentioning

confidence: 99%

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Study of sliver irregularity caused by fiber acceleration motion during the drafting process

Liu,

Zhu,

Zhong

et al. 2023

Textile Research Journal

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During the drafting process, the fiber acceleration motion contributes significantly to the sliver irregularity. In this study, the drafting simulation based on the improved model of fiber arrangement in the sliver was developed to analyze the sliver irregularity caused by the acceleration motion during the drafting process. The results indicated that the drafting simulation could provide an effective reference for the parameter optimization of the drafting process under the condition of saving raw material cost and time cost. The simulations and calculations denoted that a shorter gauge length and larger input sliver linear density by more concentrated accelerated motion could be conducive to more even slivers during the drafting process. In addition, in order to generate higher sliver evenness, in the double-zone drafting process, the draft ratio of the back drafting zone should be selected to be slightly greater than 1 so that the draft ratio of the front drafting zone would be relatively large when the total draft ratio is constant due to the trend of the additional irregularity caused by the acceleration motion increasing to a peak value firstly and then decreasing as the draft ratio grows.

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Section: Calculation Of Sliver Irregularity Caused By the Fiber Accel...mentioning

confidence: 99%

mentioning

confidence: 99%

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Study of sliver irregularity caused by fiber acceleration motion during the drafting process

Liu,

Zhu,

Zhong

et al. 2023

Textile Research Journal

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Machine learning enabled film pressure sensor to identify surface contacts: An application in surface transmission of infectious disease

Chang,

Zhang,

Geng

et al. 2024

Build. Simul.

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The influence of the friction field on accelerating position distribution

Fan,

Wang,

Zhang

et al. 2024

Textile Research Journal

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In accordance with the tenets of displacement deviation theory, the distribution of accelerating positions was the main reason for the uneven output sliver. To elucidate this phenomenon, a dynamic drafting model with controllable fiber proportion was developed in this paper to simulate the accelerating process of the floating fiber. The model was employed to investigate the impact of the friction field on the distribution of accelerating positions, achieved through the manipulation of friction field distribution and fiber proportion in the drafting zone. The simulation results indicated that, with various drafting conditions, the friction field at the position with a higher slow fiber proportion always made the accelerating position distribution closer to the front roller. In addition, the duration of the friction field influence on the fiber floating process was found to be directly proportional to its effect on the accelerating position distribution. Furthermore, there was a critical slow fiber proportion, which increased in tandem with the augmentation of slow fiber proportions in the drafting zone. The friction field at the position where the proportion of slow fibers was higher than the critical slow fiber proportion made the accelerating position distribution closer to the front roller; otherwise, the friction field made the accelerating position distribution closer to the back roller. This study can offer a valuable reference for designing more effective friction field distribution to improve the output sliver quality.

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Pressure distribution in the drafting zone measured by film pressure sensors

Cited by 3 publications

References 9 publications

Study of sliver irregularity caused by fiber acceleration motion during the drafting process

Study of sliver irregularity caused by fiber acceleration motion during the drafting process

Machine learning enabled film pressure sensor to identify surface contacts: An application in surface transmission of infectious disease

The influence of the friction field on accelerating position distribution

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