Falzpresse

摘要

A press (20) with both prehemming (22) and final hemming tools (24) or steels each driven by the same prime mover (44). Each steel is mounted on a separate carrier driven through separate toggle joints (40,42) to advance and retract the steels for prehemming and final hemming of an upturned flange (26) along an edge (28) of a steel panel (30). To facilitate synchronizing the operation of at least two presses, the prime mover may be a screw and servo motor drive assembly.