Process for turning up in a paper machine and paper manufacture
AssigneePaprima Industries Inc.
InventorsDieter H. HILKER, Alfred NEUMAYER
Life of this patent
Estimating the term…
Abstract
A paper-making machine and process, in which a paper web passes over a pope roller to a main roll and a new roll can be brought into contact with the pope roller when the main roll becomes a full roll, is improved by arranging at least two paper cutting tools to cut a paper web from each of two outer lateral edges to form two or more leader portions. A tail of the paper web formed on the full roll is symmetric and the leader portions on the new roll are also symmetric. Adhesive spray or tape can be applied to the paper web in the area of the leader portions. Air jets can also be used to bias the leader portions towards a surface of the new roll.
Claims18
A method for manufacturing paper in a paper-making machine, the method comprising:
- feeding a continuous paper web toward a full roll;
- using a cutting tool to cause the continuous paper web to turn up onto a new roll with two or more leader portions;
- decelerating the full roll;
- and
- removing the full roll from the paper making machine;
- wherein a tail of the web formed on the full roll is symmetric and the leader portions on the new roll are also symmetric.
A web turn-up apparatus for use in a paper-making machine in which a paper web passes over a pope roller to a main roll and a new roll can be brought into contact with the pope roller when the main roll becomes a full roll, the apparatus comprising:
- at least two paper cutting tools arranged to cut a paper web from each of two outer lateral edges to form two or more leader portions;
- wherein a tail of the paper web formed on the full roll is symmetric and the leader portions on the new roll are also symmetric.
Dependencies are inferred from the claim text.