Winding roller support device for web material

US5647555A · kind A · utility

Assignee

• Voith Sulzer Finishin GmbH · DE

Inventors

• Hans-Rolf Conrad · Dormagen, DE
• Dieter Junk · Kreuztal, DE

Key dates

• Filing date: Jul 20, 1995
• Grant date: Jul 15, 1997
• Expiry date: Jul 20, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S242/908
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A winding device for supporting a winding roller for web material, in particular, for paper, has a supporting arrangement which works from underneath in opposition to a deflection of the winding roller and which creates a compressed air cushion between the supporting arrangement and the winding roller. The air cushion is created by means of an over-pressure in a space between the support rollers that are placed underneath the winding roller. However, due to the changing winding radius, the sealing at the ends of the winding space is difficult to maintain. In order to achieve a support of the winding roller that is free of support rollers and that smooths the web material, it is now provided that the supporting arrangement has at least one support plate with an upper side which is substantially matched to the contour of the under side of the winding roller and in which there is configured at least one compressed air outlet opening, that the compressed air can exit through a gap between the winding roller and the support plate, and that the support plate can automatically adjust itself radially to the winding roller in accordance with the winding diameter.