VORRICHTUNG ZUR EINBRINGUNG VON FLÜSSIGEN ZUSAMMENSETZUNGEN IN DIE RÖHREN VON WELLPAPPE.

摘要

PCT No. PCT/SE89/00742 Sec. 371 Date Jun. 25, 1991 Sec. 102(e) Date Jun. 25, 1991 PCT Filed Dec. 20, 1989 PCT Pub. No. WO90/07617 PCT Pub. Date Jul. 12, 1990.The device of the invention for introducing liquid composition into the pipes of corrugated cardboard sheets comprises at least one guide bar (3) having a guiding slot (4) for the top edges of the sheets being conveyed below the guide bar. Knives (8) are provided near the bottom edges of the slot. To cut loose narrow top edge areas of the exterior walls of the corrugated cardboard sheets from the adjacent pipe walls the edge areas constituting seals against the side walls of the slot exteriorly of the knives. Injector nozzles (13) open into the slot bottom for injecting composition into the pipes of the corrugated cardboard sheets. The vertical distance between the bottom of the guide bar slot and the conveyor is adjustable. The injectors are connected into a composition circulation circuit.