| 摘要 |
<p>A method of continuously winding a moving web (B) of a flexible material having two lateral edges (R<1>, R<2>) onto a sequence of winding cores to form a sequence of web coils each having a generally cylindrical outer surface and two end faces constituted by said lateral edges of said web in said coil; comprising guiding said web by a deflection roller (12) first onto a winding drum (14) and subsequently onto a web take-up means (10) where said web coils (16) are formed; said winding drum and said take-up means each being provided with a separate drive (141, 161) for rotating said winding drum and said web coils in said take-up means and for generating a tensile force acting on said web; said winding drum having a central axis (A) of rotation and a cylindrical contact surface (F) for frictional and essentially non-slipping engagement with said web along a dynamic segment (K) of said contact surface; said segment having a width defined by said edges as well as a length defined by a first and a second end line (L<1>, L<2>) each extending transversely on said contact surface and substantially parallel to said 29 axis of rotation; said method further comprising continuously monitoring a first value (Z<1>) of said tensile force acting upon said web at said first end line (L<1>) and a second value (Z<2>) of said tensile force acting upon said web at said second end line (Z<2>), and controlling said drive (161) of said take-up means (10) by said first and said second value of said tensile force to obtain a generally smooth appearance of said cylindrical outer surface and said end faces of said web coils (16).</p> |
