Back to results
US 6,467,719 B1Granted
Apparatus and method of turn-up of lightweight paper on high speed reels
OwnerPeter A. Rodriguezinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerPeter A. Rodriguezinventor
Estimating the term…
Web weakening and severing during turn-up of lightweight paper is accomplished by weakening with a plurality of spaced water spray valves to provide a wetting pattern that is determined by web speed, the type of paper being turned up, and the distance between the valve and the web. A series of adhesive supplying valves are spaced to provide adhesive strips to the web between the wetted areas. A programmable logic controller provides for the desired sequence of actuation of the water and adhesive valves. The valves are mounted on a movable frame that extends across the web from edge to edge. In one embodiment, the adhesive strips are applied behind the wetted areas to allow for a continuous wetted surface across the web. In addition, one or more air valves can be mounted near one or both edges of the web to supply an air blast, which assists the turn-up.
Apparatus for severing a traveling web of paper and transferring a severed web to an empty spool comprising a frame extending substantially a width of a web from one edge to another edge, selectively operable web weakening means for weakening a web, a plurality of spaced adhesive applying means for selectively applying adhesive to a web at a plurality of spaced locations prior to severing a web and after severing a web attaching a severed web to an empty spool, said web weakening means including a plurality of water applying means spaced across a width of a web for selectively wetting a web at a plurality of spaced locations across a web, each said water applying means including a valve, each said adhesive applying means including a valve, each said adhesive applying means and water applying means being mounted to said frame, and control means for selectively operating each said valve of said water applying means and of said adhesive applying means.
A method of severing a traveling web of paper and transferring the severed web to an empty spool comprising the steps of:
Dependencies are inferred from the claim text.