Device for applying a free-flowing medium to a web

US9808823B2 · kind B2 · utility

Assignee

• Olbrich GmbH · DE

Inventors

• Ralph Pagendarm · Halstenbek, DE
• Peter Rose · Heidenheim, DE

Key dates

• Filing date: Oct 6, 2011
• Grant date: Nov 7, 2017
• Expiry date: Aug 4, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05C11/045
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A device for applying a free-flowing medium to a continuously conveyed web, wherein the medium can be transferred to the web by a continuously rotating transfer (gravure) roll. An application head is provided in order to transfer the free-flowing medium to the circumference of the gravure roll. The application head includes a chamber which is open toward the circumference of the gravure roll and has an inlet and an outlet for the medium to be applied. The front outer face, in the direction of rotation, of the chamber is delimited by a front doctor blade and the rear outer face, in the direction of rotation, is delimited by a rear doctor blade. Both doctor blades are seated against the circumference of the gravure roll. The front doctor blade can be pressed against the circumference of the gravure roll by a pressing body with an adjustable pressing force.