method and device for folding an edge of a blechbauteils, particularly of a motor vehicle body blechbauteils

摘要

According to the invention, folding a sheet edge at high folding speed with no faults may be achieved, wherein a conically contoured folding roller (4) is used with an inclined attitude to the direction of movement thereof, firstly engaging the edge (2) of the sheet for folding with the front region (5a) of the largest diameter thereof and then continuously folding the edge (2) of the sheet until contact is made with the limiting part of the sheet component (1) continuously overt the conical region (5c) until the region (5b) of the smallest diameter thereof is reached.