| 摘要 |
A method and apparatus for the preparation of a wound roll of a web of material by utilizing a surface windup device for automatically introducing a core onto a primary lay-on roll, automatically cutting the web so that it can be attached around a new core, a primary lay-on roll that feeds the web of material onto the rotating core, winding the web onto the core to form a roll by driving the core with a secondary lay-on, the differential in speed between the primary and secondary lay-on rolls controls the tension of the web as it is wound. This invention also incorporates a retractable cutting roll and knife assembly that is moved into position to cut the web of material, assist in transferring the web of material to a new core and then retracts to a position that does not hinder winding the new roll of wound material. Further, the winder is equipped with an apparatus that ejects the wound roll from the hold-down clamps as a new roll is automatically started.
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