MALE FOR BASE TRAINING MACHINE OR PRISMATIC BOXES FOR FOLDING AND JOINING OF TROQUELATED PLATES, IMPROVED

摘要

The mandrel (70) comprises a pressing element (71) providing a pressing surface perpendicular to a longitudinal direction (Z) parallel to a path of movement of the mandrel (70), the pressing surface having a polygonal-shaped outer contour with an even number of sides greater than four, die walls (72) providing die surfaces parallel to longitudinal direction (Z), side walls (24), and a connecting element (73) which is connected to a movable member of a mandrel operating mechanism. The die walls (72) being fixed to the pressing element (71) and associated with alternate sides of the polygonal shape and the side walls (24) being fixed to the pressing element (71) and/or to the die walls (72) and associated with the remaining alternate sides of the polygonal shape not associated with the die walls (72).