Method and an arrangement for the cleaning of a filler pipe in a packing machine

US4218265A · kind A · utility

Assignee

• Tetra Pak International AB · SE

Inventors

• Alfred Fuchs · Bergen, DE
• Erik Andersson · Lund, SE

Key dates

• Filing date: Oct 4, 1978
• Grant date: Aug 19, 1980
• Expiry date: Oct 4, 1998

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65B55/02
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

In packing machines of the kind which form a tube of packing material for subsequent conversion into separate, filled packages, a filler pipe for the contents is usually arranged inside the material tube. Especially when the packing machine works with foodstuff under sterile conditions, the filler pipe as well as other machine parts situated inside the tube have to be carefully cleaned before and after production. As the filler pipe normally is surrounded by the foodstuff in the tube, it will have to be cleaned on the outside as well as the inside, and to facilitate the cleaning it is suggested to use a cleaning container, which has a controllable outlet and surrounds the lower end of the filler pipe and makes cleaning by circulation of a cleaning liquid possible. To increase the cleaning effect the cleaning liquid is circulated through the filler pipe as well as through separate nozzles directed towards the outside of the filler pipe.