Production of corrugated cardboard

Details Production of corrugated cardboard Production of corrugated cardboard

1980-10-09

1983-01-11

Thibodeau, Paul J.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With bending, folding, winding, or wrapping means

156472, 156473, 156582, 425369, 425388, B31F 120, B31F 100

Patent

active

043680941

ABSTRACT:
Apparatus for the production of a corrugated cardboard having a cover-lining on at least one side, with an upper grooved roll and a lower grooved roll which have outwardly open annular grooves in distribution over their length, to which a suction source is connected through nozzles held by carriers, of which nozzles two in each case are arranged opposite to one another in the region of the paper web entry and exit of the lower grooved roll, fitting into an annular groove, characterized in that each annular groove (12) has a width substantially less than its depth, in that each nozzle (13, 13') which fittingly fills the annular groove possesses a pressed-flat pipe end (14, 14') and in that at least the outer nozzles of the nozzles arranged in a row are connectable additionally to an air blast source (32).

REFERENCES:
patent: 2068155 (1937-01-01), Swift, Jr.
patent: 4251313 (1981-02-01), Abe

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