| 摘要 |
The present invention relates to a cross-lapping machine (6) for creasing, folding and cross-lapping a corrugated board material fed as a continuous web (3), characterized in that the machine comprises a rotary element, having, in elevation view, a polygonal cross-section (10'), preferably an octagonal cross-section, including, at the apex of the octagon, a creasing contour (32) pressing the corrugated board material layers, the creasing contour (32) cooperating with a counter-roller (7) including a second creasing contour (32), and so timed that the mentioned creasing contours (32) deform, at a cross direction and opposite positions, but coinciding with one another, the corrugated board material strip (3) conveyed into the machine body. <IMAGE> |
