Paper Bottom

Overview

Design and Function

fully automatic, continuously operating closing machine in rotary turret design

Feeding of the can bodies

 

• feeding the filled cans or unfilled can bodies to the machine on a horizontal conveyor belt (optional)
• separating the cans by means of a driven stop star
• acceleration of the cans by means of an infeed worm
• transfer of the cans to the sealing stations by a transfer star wheel

Feeding of the paper bottoms

• inserting the prefabricated paper bottoms
  • into the bottom magazine or
  • onto a long stacking conveyor (optional) for long charging cycles
• gentle extraction of the cardboard bottom from the magazine by means of vacuum
• overhanding the paper bottom to the sealing turret

Heat-sealing process

• exact positioning of the paper bottoms in each sealing station in a form ring
• calibrating the can bodies by means of the form ring
  • precise orientation to the paper bottoms
  • correction of slight deformations of the can body
• controlled lifting of the bottom and can body into the sealing tool
• heat-sealing of paper bottom with can body
  • by inner and outer heated sealing tools
  • utilizing robust and easy-to-use heat contact technology
  • with adjustable and monitored temperature
  • long sealing times (up to 1.65 s) thanks to turret principle

Process control (optional)

• no sealing operation when can or bottom is missing
  • avoidance of contamination
• overheat protection during sealing
• automatic pneumatic ejection system for faulty cans
• integrated camera / vision inspection

Format Change

quick change to other can formats using

• fully automatic height adjustment without change parts
• very good and easy access to the tooling area
• short changeover time for preset sealing heads with quick change mechanism

Keywords

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