Process for the manufacture of a press shell and device for the application of the process

US5107625A · kind A · utility

Assignee

• J.M. Voith GmbH · DE

Inventors

• Karl Steiner · Herbrechtingen, DE
• Josef Mullner · Heidenheim, DE
• Christian Schiel · Heidenheim, DE
• Hans Flamig · Heidenheim, DE

Key dates

• Filing date: Jul 31, 1990
• Grant date: Apr 28, 1992
• Expiry date: Jul 31, 2010

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21F3/0236
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A process for the manufacture of a continuous press shell that is liquid-tight and smoothed on its inside, and which can be used as a press element in a dewatering press is provided. The press shell consists of a continuous wire belt which on its outside is coated with a plastic. Upon the smoothing of its outside, the coated press shell is turned, so that for the use of the press shell its smoothed surface will be on its inside. For turning the press shell, the one continuous edge of the press shell is first turned inward and attached to a traction device. Next, an adjoining and as yet unturned section of the press shell is held back on its outside, by means of vacuum, on a fixed guide device. Lastly, the traction device, along with the edge of the press shell attached to it, is pulled through the interior of the press shell.