Method and apparatus for controlling the movement of cross-welding jaws of a tubular bagging machine

US5117612A · kind A · utility

Assignee

• ROVEMA-Verpackungsmaschinen GmbH · DE

Inventors

• Dieter Keim · Langgöns, DE
• Bernd Stein · San Diego, US
• Walter Baur · Zöblitz, DE
• Werner Schneider · Erbach, DE
• Herbert Lohr · Reiskirchen, DE
• Rainer Ade · Bad Nauheim, DE
• Michael Kabot · Linden, DE

Key dates

• Filing date: Oct 13, 1989
• Grant date: Jun 2, 1992
• Expiry date: Oct 13, 2009

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C66/9592
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

In order to avoid in a tubular bagging machine the disadvantages resulting from the state of the art through a cam-plate control of cross-welding jaws, it is suggested according to the invention, that the control of the movement of the cross-welding jaws occurs in dependency on the contact pressure, the temperature and the needed sealing time, with the drive being able to occur mechanically by means of a toggle-lever drive mechanism.