Packaging machine for packaging using stretch wrap

US12139283B2 · kind B2 · utility

Assignee

• BIZERBA SE & CO. KG · DE

Inventors

• Thomas Schoen · Austin, US
• Kurt Wissmann · Geislingen, DE
• Jonas Lauer · Ebingen, DE
• Winai Namsuk · Pöttmes, DE
• Konstantin Rempel · Heilbronn, DE

Key dates

• Filing date: Dec 15, 2022
• Grant date: Nov 12, 2024
• Expiry date: Apr 5, 2043

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65B41/04
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A method operates a packaging machine for wrapping a packaging film around packaging trays. The method includes: feeding the packaging film to a holding mechanism having two spaced-apart holders that hold the packaging film at two opposite sides; pressing a packaging tray against the packaging film by raising the packaging tray from below; and guiding opposite sides of the packaging film below the packaging tray. The packaging tray is raised by a raising device that raises a lifting platform from a transfer position into a packaging position, the lifting platform receives the packaging tray, and the packaging tray is transported from a loading position to the transfer position by a feed belt. The lifting platform is held in a middle position by the raising device while the feed belt is transporting the packaging tray between the loading position and the transfer position on an intermediate piece.