| 摘要 |
Apparatus and method for winding paper onto a parent roll includes a rotatable reel spool onto which the paper web is wound and a reel drum over which the paper web is guided and which contacts the parent roll to form a nip at which the paper is wound onto the parent roll. In one embodiment, sensors are used for determining the indented thickness of the parent roll at the nip and the unindented thicknesses of the parent roll spaced from the nip, from which a radial indentation is derived. A control relatively positions the reel spool and reel drum to maintain the radial indentation within predetermined limits. In another embodiment of the invention, control of linear nip load is accomplished by measuring a diameter of the paper roll and a force indicative of linear nip load, and controlling relative positioning of the reel spool and reel drum to maintain the force within predetermined limits that are based on the diameter of the roll.
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