SINGLE FACER FOR PRODUCING SINGLE FACE CORRUGATED PAPERBOARD

摘要

The single facer (2) comprises a first corrugating roller (7) with a first rotation axis (A) and a second corrugating roller (9) with a second rotation axis (B). The two corrugating rollers form a corrugating nip (11), through which a paper sheet (F1) passes. The single facer also comprises a pressing member (13), co-acting with the second corrugating roller (9) and forming a pressure nip (21) therewith, as well as a glue applicator (23) co-acting with the con il second corrugating roller (9). With the second corrugating roller (9) a suction box (41) is associated, extending approximately parallel to the axis (B) of the second corrugating roller (9) and defining a suction area around the second corrugating roller (9). A series of laminar members (33), each of which is inserted in one respective of said annular grooves (31) of the second corrugating roller (9), are arranged between the pressing member (13) and the first corrugating roller (7) and extend in the respective annular grooves (31) towards the suction box (41).