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US 7,070,141 B2Granted
Method for controlling winder
AssigneeMetso Paper, Inc.
InventorJari Paanasalo
Life of this patent
Estimating the term…
Abstract
The stopping of a winder is controlled such that winding is stopped when a desired length of a web has been wound on a roll being formed/unwound from a roll being formed or when the size of the diameter of the roll is desired. An estimated stopping length is calculated based on speed, acceleration and a desired end speed.
Claims13
A method for controlling a winder, comprising the steps of:
- calculating an estimated stopping length with a computer program based on speed, acceleration, and a desired end speed as well as rounding times associated with the speed, the acceleration and the desired end speed, of a web being wound or unwound into or from a paper roll;
- and
- controlling stopping of the winder such that winding is stopped on a condition selected from a first group consisting of:
- when a desired length of the web has been wound on a roll being formed, when a desired length of the web has been unwound from a roll, and when the roll being formed is of a desired diameter, wherein the controlling stopping of the winder is based on the estimated stopping length.
1 more element
Dependencies are inferred from the claim text.