| 摘要 |
The invention relates to a machine for shaping the bellows and the corners of the bellows in cardboard or paper sheets. The machine comprises systems of articulated and thus deformable metal lozenges (diamonds) which are supplemented by thin strips secured to their articulations. By deforming these systems, the thin strips give rise to the formation of bellows and of corners of bellows in cardboard or paper sheets. <IMAGE> |
