Uhlmann Pac-systeme Gmbh & Co Kg

Andreas Krüger

Fritz Fochler

Daniel Zieher

Roberto Linke

Armin Stibe

Andreas Russ

Volker Rafensteiner

Claus Alger

Norbert Demler

A box-closing apparatus has a hanger link having one end pivoted about a fixed link axis on a stationary housing adjacent a station holding a box blank and another end defining a movable link axis. A two-arm main lever pivoted generally centrally at the movable link axis on the link has a pusher arm extending from the movable link axis and carrying a pusher block engageable with the flap of the box blank in the station and an actuating arm extending from the movable link axis and having an outer end. A drive lever pivoted at a fixed drive axis on the housing has an outer end pivoted at an outer drive axis on the outer end of the actuating arm of the main lever. The pusher block moves generally through a 0&#xb0;&#x2013;90&#xb0; sinusoidal trajectory to press an outer flap against a glue flap of the blank in the station.

Box-closing apparatus

A supply holds a flattened box blank above a conveyor passing having a succession of box seats, and a planet carrier is rotated by its own drive about a sun axis between the supply and the conveyor. A single planetary element on the carrier offset from the sun axis is rotatable about a planet axis parallel to and offset from the sun axis. A grab on the planetary element is engageable with the blank in the supply and in the conveyor seats. A planet drive wheel is fixed to the planetary element, a sun wheel is rotatable about the sun axis, and the wheels are coupled together for joint synchronous rotation. A separate planetary drive connected to the sun wheel rotates the planetary element independently of the carrier such that the grab moves while orbiting about the sun axis through a closed asymmetric path having only two outer points.

Erecting box blanks on a conveyor

Growing community of inventors

Donaurieden, Germany

Andreas Krüger