B - Operations – Transporting – 31 – F
Patent
B - Operations, Transporting
31
F
154/30.03
B31F 1/28 (2006.01)
Patent
CA 1304663
ABSTRACT A conventional single faced corrugated board manufacturing plant is modified to produce corrugated board having two fluted mediums bonded at their flute tips. In addition to the existing corrugating rolls a further pair of corrugating rolls synchronized with the existing pair are provided so that the corrugated mediums are contacted at their flute tips. An additional mill roll stand is provided for the second fluted medium. A carrier roll is provided adjacent to the pairs of corrugating rolls to take off the bonded fluted mediums and provide support and prevent uncontrolled movement of the flute to flute structure during the development of the adhesion bond. Adhesive applicators are provided to apply adhesive to one of the mediums prior to the flute tip to flute tip bonding and to coat the flute tips of the bonded fluted structure on the carrier roll for bonding to the liner. An additional guide roll is provided to allow tangential approach for the liner onto the flute to flute structure carried by the carrier roll. Radiant energy is used to assist in bonding the liner to the flute to flute tip structure enabling a low pressure bonding technique to be used.
558970
Bennett Peter Gordon
Mckinlay Peter Robert
Shaw Neil William
Amcor Limited
Seaby & Associates
LandOfFree
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