Support or pressure roll for a paper roll winder

a technology of winding rod and paper roll, which is applied in the direction of portable power tools, applications, and ways, can solve the problems of unattractive ridge patterns on the surface of the winding rod, and achieve the effects of reducing interlayer shear stress, relative hardness, and absolute hardness

Inactive Publication Date: 2002-04-16
GLV FINANCE HUNGARY KFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Yet another object of this invention is to provide paper web winding apparatus for reducing interlayer shear stress between layers of the web in the wound web roll.
An advantage of this

Problems solved by technology

A cover having a plurality of individual circular impressions, each extending ring-like about the circumference of the roll, is not preferred due to the l

Method used

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  • Support or pressure roll for a paper roll winder
  • Support or pressure roll for a paper roll winder
  • Support or pressure roll for a paper roll winder

Examples

Experimental program
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Embodiment Construction

As shown in FIG. 1, a traveling paper web W, moving in the direction of arrow 9, is being wound into a wound paper roll 10 while being supported by a pair of horizontally arrayed, parallel, spaced support drums which are generally designated with the numerals 12, 14. A rider roll 15 is disposed for substantially vertical movement, indicated by arrow 17, while maintaining nipping contact at N.sub.3 with the wound paper roll. The wound paper roll is supported on the two winder support drums along their respective nip lines of contact N.sub.1,N.sub.2, respectively.

In this description, where convenient, corresponding, or similar, components will be similarly designated with different suffixes used to distinguish between them.

The wound paper roll, although relatively hard, is not as hard as, for example, a solid steel winder drum. Thus, a representation of a wound paper roll 10 having a center shaft 23 supported on an ordinary steel winder support drum 18 could be as shown in FIG. 2 wher...

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Abstract

A roll for selective use as either a support drum or as a rider roll in a winder for winding a traveling paper web into a relatively large diameter wound web roll has a body with an outer, elastomeric cover. The elastomeric cover includes a pattern, open to the surface, arranged such that the percent of volumetric void for a unit of cover volume is such that the effective hardness of the cover ranges between about 30 Shore "A" to about 55 Shore "A" where the roll is a support drum, and between about 40 Shore "A" to about 65 Shore "A" when the roll is a rider roll. In addition, the elastomeric material has an absolute hardness of about 65 Shore "A", or less, for a support drum, and about 75 Shore "A", or less, for a rider roll, and a Poisson's ratio of between about 0.47 to about 0.499.

Description

BACKGROUND OF THE INVENTION1. Field of the InventionThis invention relates to the winding of a traveling paper web, such as is produced by a papermaking machine. More particularly, this invention relates to the construction of either a support drum or a rider roll, or both, for use in a winder for winding such a traveling paper web. Still more particularly, this invention relates to the construction of a support drum or rider roll having an elastomeric cover having a unique combination of Poisson's ratio, absolute hardness and effective hardness to provide a relatively soft nip in support of the wound paper roll while utilizing a relatively hard elastomeric cover.2. Description of the Prior ArtIn the papermaking industry, a common form of winder for winding the substantially endless paper web produced by the papermaking machine comprises a pair of spaced, parallel support drums for supporting the wound paper roll being wound from the traveling paper web.It is known in the papermakin...

Claims

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Application Information

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IPC IPC(8): B65H27/00B65H18/16B65H18/14
CPCB65H18/16B65H18/20B65H27/00B65H2401/10B65H2404/1118B65H2404/1122B65H2404/1152B65H2404/13161B65H2404/13162B65H2404/1321B65H2404/181B65H2404/185B65H2404/43B65H2515/00
Inventor LUCAS, ROBERT G.
Owner GLV FINANCE HUNGARY KFT
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