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A Study on the Rotating Ring Using Air Bearing in Yarn Manufacturing Process  

Jang, Seung-Ho (Department of Mechanical Engineering, College of Engineering, Kyung Hee University)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.19, no.5, 2010 , pp. 622-630 More about this Journal
Abstract
The increase of the spindle speed to enhance the productivity in ring spinning processes has been limited by yarn tension and heat generation of the traveller/ring. The main causes of yarn tension are 1) the force added directly to the yarn by the rotation of the spindle and 2) the centrifugal force exerted by the yarn balloon generated by traveller rotation. The dominant causes of heat generation are 1) the friction between the ring and traveller and 2) the friction between the traveller and yarn. These factors cause yarn end-breaks and heat damage. In the case of the staple yarn manufacturing process for PET (polyester) and nylon (a heat plasticity material), the rotational speed of the ring spinning system has deteriorated to 10,000rpm. The objective of this study was to develop a rotating ring which has dynamic stability, high productivity and a simple structure to overcome the limitations of the conventional fixed ring/traveller system. The results of this study revealed that the spinning tension could be reduced by 67.8% using the newly developed rotating ring.
Keywords
Rotating Ring; Air Bearing; Spinning Process; Dynamic Stability; Moment of inertia;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Cho, B. and Seong H, 2010, "The Design of sliding mode controller for precision stage using genetic algorithm," Journal of the Korean Society of Machine Tool Engineers, Vol. 19, No. 1, pp. 101-109.   과학기술학회마을
2 Jang, S. H., 2008, "S. H. Jang, A Study on three dimensional layout design by the simulated annealing method," Journal of Mechanical Science and Technology, Vol. 22, pp. 2016-2023.   과학기술학회마을   DOI   ScienceOn
3 Lee, Y., Jeong, J., Kim, H., and Shin, K., 2009, "An experimental study on the failure characteristics of flip chips in cyclic bending test," Journal of the Korean Society of Machine Tool Engineers, Vol. 18, No. 4, pp. 362-368.   과학기술학회마을
4 Song, J., Mun, S., Kim, Y., and Kim, H., 2010, "Compressive strength of natural fiber reinforced polymer composites," Journal of the Korean Society of Machine Tool Engineers, Vol. 19, No. 1, pp. 140-144.   과학기술학회마을
5 McPhee, J. R., Russell, K. P., and Shaw, T., 1985, "The role of objective measurement in the wool-textile industry," the Journal of the Textile Institute, Vol. 76, No. 2, pp. 110-121.   DOI   ScienceOn
6 Jang, S. H. and Huh, Y., 1995, "Modeling of rotating ring dynamics with point pulsating force," Journal of the Korean Fiber Society, Vol. 32, No. 9, pp. 853-857.
7 Igel, W., 1979, "Luftgelagerte Spinnringe," Textil Praxis International(in German), Vol. 34, pp. 1093-1096.
8 Jang, S. H., 1996, "Vibrational characteristics of annular plates and rings of radially varying thickness," KSME Journal, Vol. 10, No. 2, pp. 14-157.   DOI
9 Jang, S. H., Kwon, Y. H., and Huh, Y., 1995, "Experimental analysis on the vibration of rotating ring," Journal of the Korean Fiber Society, Vol. 32, No. 10, pp. 934-940.
10 Jang, S. H. and Nakajima, N., 1992, "Study of the CAE system for product development," JSME International Journal, Vol. 35, No.3, pp. 493-499.