방적

Design of asymmetrical cam profile for improved performance at flyer spinning

  • 출판일1997.02
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 172
The variation of the transmitted yarn tension within and between the layers and cross-layers of the bobbin build-up is assumed to be one of the important causes for end breakage in the flyer spinning system. Since the existing cam of symmetrical profile produces equal traverse rate to the bobbin rail in both its upward and downward movements, this traverse ratio of 1:1 is likely to be partly responsible for such variation of yarn tension and consequently the end breakage rate. In view of this, two building cams of different asymmetrical profiles to produce 1:1.4 and 1:2 traverse ratios were designed by adopting a combined mathematical and geometrical approach. The modified cams were found to reduce the end breakage rate in jute flyer spinning by 9.4-14.5％ and increase the package density by 6.9-8.5％ at the mill and the laboratory levels respectively.
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