Apparatus for fitting shrunk on-foil hoods into recessed portions of a multi-layered stack

US4258533A · kind A · utility

Assignee

• Mollers Maschinenfabrik GmbH · DE

Inventors

• Peter Aka · Beckum, DE
• Manfred Grunert · Beckum, DE

Key dates

• Filing date: Jan 2, 1979
• Grant date: Mar 31, 1981
• Expiry date: Jan 2, 1999

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65B53/02
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The opposite sides of the bottom layer of a multi-layered stack of packages have recessed portions. In apparatus for fitting a shrunk-on foil hood over the stack, a conveyor is positioned at a working station. The conveyor can be raised and lowered. After the stack is positioned at the working station, the conveyor is lowered and sets of rollers at each end of the conveyor are moved horizontally inwardly above the conveyor into the recessed portions of the stack. With the rollers within the recessed portions, the conveyor is lowered further so that the rollers contact the downwardly facing surface of the recessed portion. The relative movement of the sets of rollers and the conveyor permit the rollers to press the foil hood into closely fitting contact with the recessed portions of the stack. While the foil hood is pressed into the recessed portions, cooling air can be directed toward the stack to facilitate the shrinking action.