Abstract :
Winding is an integral operation in almost every web handling process. Center-winding are suitable and a general scheme in winding systems. However, the internal stresses within center-wound rolls can cause damage such as buckling, spoking, cinching, etc. Wound roll quality and performance are known to be related to distribution of in-roll stresses. It is therefore necessary to analyze the relationship between taper tension in winding section and internal stress distribution within center- wound roll to prevent winding failure (starring, buckling, telescoping etc.). In this study, a new taper tension control method for producing high quality wound roll was developed. The new method was induced from analyzing the winding mechanism by using the stress model in center-wound rolls, taper tension profile-telescoping relationship, and taper tension type-internal stresses relationship, etc. Auto taper tension profile making method for avoiding the damage (telescoping, starring, etc.) is presented. The experimental results show that the proposed method is very useful.
Keywords :
industrial control; internal stresses; machine control; machine windings; auto taper tension profile making method; center winding system; center-wound rolls; stress model; taper tension control method; taper tension profile-telescoping relationship; taper tension type-internal stresses relationship; Aerospace engineering; Boundary conditions; Control systems; Failure analysis; Internal stresses; Predictive models; Residual stresses; Solid modeling; Tensile stress; Wounds;
