Drum lagging material and installation apparatus therefor

Abstract

Disclosed are lagging materials for use on a driven cylindrical pulley or drum for an industrial machine. A lagging material can comprise a seaming element along the cross-machine direction (CD) of each of the opposing ends of the lagging material for forming a seam for seaming opposing ends of a lagging material when brought together. A lagging material can also comprise coatings that increase the Coefficient of Friction of a lagging material when the lagging material is installed onto the drum such that no additional adhesive is required to keep the lagging on the drum circumference when in operation. Also described is an apparatus for installing an on machine seamable lagging including at least two opposed elongate members, such that when the elongate members are drawn together, the lagging material is stretched into a seamable position to be installed on the drum.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to pending U.S. provisional patent application No. 61 / 538,470, filed Sep. 23, 2011 and to pending U.S. provisional patent application No. 61 / 542,657, filed Oct. 3, 2011, each entitled “DRUM LAGGING MATERIAL AND INSTALLATION APPARATUS THEREFOR,” and the entirety of each of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]The manufacture of corrugated paper board, or box board, on corrugator machines is well-known in the art. The manufacture of corrugated paper board, or box board, on corrugator machines is well-known in the art. An exemplary description of corrugator machines and their use can be found in U.S. Pat. No. 6,276,420, the entirety of which incorporated by reference hereby. In the manufacture of corrugated paper board, a so-called core paper is heated by steam, which makes it more pliable, and is then fed into a nip formed between a pair of toothed rollers whose teeth me...

AI Technical Summary

Benefits of technology

The patent describes a seaming apparatus and a method for installing a lagging material on a machine. The apparatus includes two elongate members that are placed on either side of a seaming area on a drum. Each elongate member has a plurality of lagging material engagement members attached to it. The elongate members are pulled together in the machine direction to stretch the lagging material into a seamable position on the drum. The lagging material is made of a substrate, such as woven or non-woven fibers, and a coating that increases its Coefficient of Friction to keep it in place on the drum without needing adhesive. The method involves positioning the ends of the lagging material around the drum's outer surface, attaching an installation device to the openings on the ends, and seaming the material onto the drum. The installation device stretches the material onto the drum, ensuring it is secure and can withstand operation of the machine.

Problems solved by technology

In most cases, this requires several days of work and machine downtime.

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