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US 5,360,179 AGranted
Method and device for reeling a web
AssigneeValmet Paper Machinery Inc.
InventorsKalevi A. Vesterinen, Vesa K. T. Markkanen
Life of this patent
Estimating the term…
Abstract
A method and device in the reeling of a web, wherein the web is reeled a first roll onto a second roll. When the second roll has reached the desired diameter size, a new reeling is started from this second roll of desired size onto an additional roll. After the second roll has reached the desired diameter size, a tip part is cut into the web by a water jet. The tip part is blown into contact with the additional roll, whereupon the web is cut off by the water jet.
Claims9
A method for reeling a web, comprising the steps of:
- reeling a web from a first roll onto a second roll,
- initiating the cutting and forming of a tip part from the web by directing one water jet against the web at a first edge thereof,
- blowing the tip part into contact with a third roll, such that the tip part of the web begins to reel onto the third roll, and
- directing said water jet to a second edge of the web opposite from said first edge to sever the web across its entire width so that the web stops reeling onto the second roll and begins to reel onto the third roll.
1 more element
A device for changing the reeling a web from successive rolls, comprising
- a frame,
- a first roll arranged to reel a web onto a second roll,
- water nozzle means arranged on said frame for directing a water jet onto the web in proximity to the first roll to initiate the cutting and forming of a tip part into the web, said water nozzle means consisting of one water jet positioned to start cutting the web at one edge thereof and ending at an opposite edge of the web, and
- air nozzle means arranged on said frame for directing an air jet onto the tip part of the web to direct the tip part onto a third roll when a desired diameter size of the second roll is reached,
- said water nozzle means further constituting means to direct said water jet across the entire width of the web after the tip part has been reeled around the third roll to sever the web and stop the web from reeling onto the second roll, the web then being reeled onto the third roll.
2 more elements
Dependencies are inferred from the claim text.