Method and apparatus for folding of sheet material

Details Method and apparatus for folding of sheet material Method and apparatus for folding of sheet material

B - Operations, Transporting

31

D

B31D 5/00 (2006.01) B31D 5/04 (2006.01) B65D 19/00 (2006.01)

Patent

CA 2112370

2112370 9300218 PCTABS00019 A method and apparatus is shown for making a pallet construction wherein a series of symmetrical stringer members (60) made on the apparatus of the present invention are inserted into an equal plurality of nonsymmetrically shaped cross-stringers, both of which have had adhesive (88) applied while being folded to retain their shape. The method involves essentially supplying a sheet of material such as fiberboard blank (60) of appropriate composition and size, running the blank through crushing and scoring rollers to produce fold lines in the blank, and asymmetrically or symmetrically folding (84) the blank (62) into a predetermined shape while applying adhesive (88) at predetermined points. The blank is folded by passing it through a multi-function folding means (158, 84) including a lifting means (158) which can slightly lift the outside edge of the blank until a belt-like folding and propelling means (84) can then fold one panel of a blank over onto the other panel.

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