Press to perforate and corrugate material strip - has advance rollers, with adjustable rotary positions, to place perforations relative to corrugations

摘要

The perforations (25) are made in the strip material (1), and the relative distance (21) between the holes in the passage direction is matched to the overlap of non-changing surface areas (24) on the bending rollers (10,11), w.r.t. the formed sections (28) in the strip material (20). At least one advance roller (7) has projections, to engage in perforations in the material. These are drives for the punch, feed rollers and bending bodies. ADVANTAGE - Perforations are always placed in the same areas of the corrugations.