Headbox for a papermaking machine

US5152873A · kind A · utility

Assignee

• J.M. Voith GmbH · DE

Inventors

• Simon Juhas · Nattheim, DE
• Gernot Kinzler · Heidenheim, DE
• Robert Wolf · Woodbury, US

Key dates

• Filing date: Feb 19, 1992
• Grant date: Oct 6, 1992
• Expiry date: Feb 19, 2012

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21F1/02
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A headbox for a papermaking machine has an outlet channel having the width of the machine which is limited by a rigid channel wall and by a movable channel wall. The movable channel wall is part of a channel-wall support. Between the latter and a supporting member, there is a pressure cushion which counteracts the pressure prevailing in the outlet channel. A lift device is swingably mounted, at one end, on the rigid headbox housing and, on the other end, on the channel-wall support. In each of the two end walls of the channel-wall support, there is provided a spherical joint, the center point of which lies in a plane extending through the end point of the channel width. The lift device is coupled to the spherical joint by means of a C-shaped spindle head.