A New Type of AODF Based on an Imitation of the Weft Insertion of a Rapier Loom

Wei, Shimin; Yang, Zheng; Guo, Liheng; Song, Yuan

doi:10.3390/electronics8020157

Cited by 4 publications

(4 citation statements)

References 18 publications

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“…Thus, the shed formation was the key to completing the weft insertion. 21 However, the warp yarns produced deformation during the process of forming a shed. Because the shedding action of the rapier loom was periodic during the weaving process, the deformation can cause periodic fluctuations in tension.…”

Section: Analysis Of Influences and Solutions On Warp Tensionmentioning

confidence: 99%

Optimal analysis and application of the warp tension control system for a rapier loom

Xiao

Zhang

Liu

et al. 2021

Textile Research Journal

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Traditional proportional–integral–derivative (PID) control performance optimization is an essential method to improve a loom’s warp tension control performance. This work proposes an improved genetic algorithm optimized PID control scheme to overcome the decline in control performance of the traditional PID control algorithm in a loom’s warp tension control system. Through the decoupling analysis of loom motion mechanism, the establishment of warp tension model and the optimization of fitness evaluation mechanism of genetic algorithm can effectively overcome the problems of local optimal solution and algorithm degradation of genetic algorithm. Simulation experiments were carried out with the traditional PID, the integral separation PID, and the genetic PID in warp tension control. The results show the advantage of the genetic-PID algorithm to control warp tension stability. Ultimately, according to the functional characteristics of the loom mechanism, a tension control platform for experimental studies was established. The test results show that the maximum fluctuation range of warp tension is within [−2, +6] at the test speed of 850 rpm, which meets the requirements of long-term stable and reliable control of warp tension under different weaving conditions.

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Section: Analysis Of Influences and Solutions On Warp Tensionmentioning

confidence: 99%

Optimal analysis and application of the warp tension control system for a rapier loom

Xiao

Zhang

Liu

et al. 2021

Textile Research Journal

View full text Add to dashboard Cite

show abstract

“…The LC connector (Fig. 5) was developed by the famous Bell Institute [17, 18] and is manufactured using a convenient modular jack (RJ) latch mechanism. Its external size is only half of that of the SC/ST/FC connector, which is a type of small connector that can improve the density of the fibre connector in the fibre distribution frame, so it is used to design the prototype.…”

Section: Clamping Device Designmentioning

confidence: 99%

“…Wei et al . [17] described a cross‐connect method that simulating the rapier picking of a rapier loom (shuttleless loom) is proposed to imitate the shedding and the picking action to achieve quick switching. In this study, the relationships between the input lines and output lines of the MDF are reversed so they are perpendicular to each other; one‐dimensional arrays of input lines and output lines (1D to 1D) are constructed to form the model.…”

Section: Introductionmentioning

confidence: 99%

Design and implementation of a small AODF

Yang

Wei

Guo

et al. 2019

J. eng.

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“…Shuttleless looms can be classified by the weft insertion modes: 2 (1) rapier looms 3 for the production of small batches like ornaments and a variety of weft yarn fabrics; (2) air-jet looms 4 for the processing of various thick and thin fabrics; (3) water-jet looms 5 for weaving hydrophobic yarns; (4) projectile looms 6 for weaving extra-wide fabrics and high-grade decorative fabrics; and (5) multished looms 7 for weaving simple and ordinary fabrics with extremely high weft insertion rates. Tucked-in edges are commonly used to replace raw edges in shuttleless looms due to the yarn-wasting problem.…”

mentioning

confidence: 99%

Effect of initial pressure of oblique-blowing airflow and folding-in airflow on yarn tucked-in in the pneumatic tucked-in selvedge apparatus

Liu

Zhou

Cheng

et al. 2021

Textile Research Journal

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In this paper, numerical simulation and laboratory experiments were combined to research the tucked-in behavior of the yarn in the pneumatic tucked-in selvedge apparatus, and explore the effect of initial pressure of oblique-blowing airflow and folding-in airflow on yarn tucked-in. This work focused on the motion of a single yarn of which one end was fixed while the other was free. Initial pressures for oblique-blowing airflow and folding-in airflow were set as parameters. A numerical model was developed to simulate the process based on the one-way fluid–structure interaction. Then a laboratory experiment was carried out with the help of a high-speed camera to record the motion behaviors of yarns. The motions were compared with the simulation data and showed that the proposed numerical model can properly replicate the motion of yarn and its points in the airflow field. Each group of yarns with different initial pressures was able to be tucked-in and had an elongation. Increasing the initial pressures of oblique-blowing airflow from 0.3 MPa to 0.4 MPa and folding-in airflow from 0.35 MPa to 0.4MPa shortened the time for the yarn to complete the entire oblique-blowing and tucked-in process by 0.4625 ms, and extended the yarn elongation by 0.151 mm.

show abstract

A New Type of AODF Based on an Imitation of the Weft Insertion of a Rapier Loom

Cited by 4 publications

References 18 publications

Optimal analysis and application of the warp tension control system for a rapier loom

Optimal analysis and application of the warp tension control system for a rapier loom

Design and implementation of a small AODF

Effect of initial pressure of oblique-blowing airflow and folding-in airflow on yarn tucked-in in the pneumatic tucked-in selvedge apparatus

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