B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 3/12 (2006.01) B29D 99/00 (2010.01) B31D 3/02 (2006.01)
Patent
CA 2075142
A foil which is unrolled from a band coil is coated at uniform intervals with strips of adhesive and cut into strips in the direction of uncoiling. The strips are then piled on top of one another with their respective adhesive strips parallel but in staggered positions, and are thereafter adhesively bonded together under pressure to form a stack with ends which is finally expanded. The foil band is cut into strips whose width corresponds to the honeycomb core height desired. One strip is passed over a position detector which, by detecting the adhesive strips, determines its position relative to the first end of the stack and activates an electronic control unit to control a positioning drive and a cutting device. The positioning drive positions the strip relative to the stack at one of its ends in such a way that the adhesive strips on the strip lie between those of the underlying strip and the strip is held fast at the one end. Beginning from the one end, the strip is then progressively bonded to the underlying strip, working towards the direction of the other end; shortly before bonding at the other end, the strip is cut by the cutting device to a preselected length limited by the ends, which correspond to the desired width of the honeycomb core to be made; the process then repeats itself. Equipment for carrying out such process and its application for the continuous production of a composite plate with an expanded honeycomb core and at least one covering layer are also disclosed.
3a Technology & Management Ag
Alusuisse-Lonza Services Ltd.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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