DEVICE AND METHOD FOR CONTINUOUSLY WELDING STRIPS AND/OR SHEETS USING TWO WELDING HEADS OFFSET FROM EACH OTHER

摘要

A method and to a corresponding device for continuously welding strips or sheets, guided into abutment, at their abutting edges, comprising at least two welding heads, and tension rollers which are arranged in pairs on both sides of the strips or sheets to be welded perpendicularly to the running direction thereof and which form a gap in the region of a joint of the strips or sheets, through which gap a first energy beam emanating from a first of the at least two welding heads impacts the strip edges or longitudinal edges to be welded, a second of the at least two welding heads being arranged on the opposite side of the strips or sheets a second energy beam of said second welding head impacting in this location the strip edges or longitudinal edges to be welded, characterised in that wherein the at least two welding heads are arranged offset relative to one another in the running direction of the strips or sheets so that the impact points of the energy beams on the strip edges or longitudinal edges to be welded are spaced apart from one another at least by the measurement of half the external diameter of the tension roller facing the first energy beam.