Customer's request

The customer requested a multifunctional machine line that automatically stacks hard acoustic panels and automatically winds nonwoven webs. In addition, it was required to cut the panels to the correct size and measure them. A further challenge in stacking was, on the one hand, removing and reducing the hard-edge strips and, on the other hand, stacking first- and second-quality panels separately. Finally, the customer wanted an installation that requires as little personnel as possible.

Line exit for panels

  • After leaving the belt oven, the panels are cut to the correct width using automatically adjustable blades. These free-cutting blades are fitted with a cooling system and an auto-sharpening system. The panels are cut to the correct length using a flying guillotine.
  • The next step creates space between the cut edge strips and the panels. A physical check of the length of the panels takes place.
  • A camera system inspects the panels.
  • Several print heads mark the second-quality panels.
  • The main stacker with a unique vacuum system picks the panels from the roller conveyor and stacks them individually on the pallets. This pick-up method ensures the panel surface is fully protected, with no risk of damage.
  • The pallets automatically receive a cardboard or felt layer to prevent contamination of the panels by the pallet, via a second stacker on the same travel path.
  • Liftable conveyor belts carry the remaining edge strips away to the side. The edge strips are cut into smaller pieces for further recycling.
  • Has a stack of panels reached the desired height? If so, our machine covers them with a top protection layer of cardboard or felt, also using the second stacker.

Line exit with winding function for nonwoven webs

  • The web runs along the roller conveyors beneath the stacker to an accumulator. There the web is temporarily buffered during a roll change.
  • Slitting blades cut the web into several strips.
  • Our fully automatic surface winder winds the cut strips. We provided automatic core feed and a glue applicator to close the rolls.
  • The winder pushes the wound rolls off to a mobile packer.

Thanks to our innovative multifunctional concept, we succeeded in reducing the number of operators for panel stacking by three FTEs per shift. This automation also made higher line speeds possible compared with manual stacking.

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