Mandrel used for digital printing on can members

US8708271B2 · kind B2 · utility

Assignee

• Ball Packaging Europe GmbH · DE

Inventors

• Werner Noll · Nassau (Lahn), DE
• Helmut Thate · Rothenfels, DE

Key dates

• Filing date: Nov 3, 2006
• Grant date: Apr 29, 2014
• Expiry date: Oct 4, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F17/002
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

There is proposed a clamping mandrel for a rotationally symmetrical hollow body in the form of a beverage can integrally comprising a body portion and a bottom. Accurate coupling and precise control of the movement of the mandrel is to be transmitted to the hollow body. For that purpose there are provided a plurality of clamping segments forming an outwardly facing cylindrical clamping surface for engaging an inside surface of the hollow body. The clamping segments are radially movably guided. A force-transmission device arranged in the interior of the clamping mandrel is provided for synchronous control of the radial movement of the clamping segments. That provides for controlled precision movement of a hollow body clamped by the clamping device.