• Title/Summary/Keyword: Center Wound Roll

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Effect of Taper Tension Profiles on Radial Stress of a Wound Roll in Roll-to-roll Winding Process (롤투롤 와인딩 시스템에서 테이퍼 장력과 감김롤 응력분포에 관한 연구)

  • Lee, Changwoo
    • Journal of the Korean Society for Precision Engineering
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    • v.31 no.2
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    • pp.125-131
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    • 2014
  • Winding is an integral operation in almost every roll-to-roll continuous process and center-winding is suitable and general scheme in the winding system. However, the internal stresses within center-wound rolls can cause damage such as buckling, spoking, cinching, etc. It is therefore necessary to analyze the relationship between taper tension in winding section and internal stress distribution within center-wound roll to prevent the winding failure. In this study, an optimal taper tension control method with parabolic taper tension profile for producing high quality wound roll was developed. The new logic was designed from analyzing the winding mechanism by using the stress model in center-wound rolls. The performance of the proposed taper tension profile was verified experimentally.