Device for moving an arrangement for cutting and welding metal strips

A cutting and welding method for welding a tail of a first metal coil strip to a head of a second metal coil strip, comprising:

• providing a cutting head on a first carriage movable on a guide extending transversely across the first and second coil strips;
• providing a welding head on a second carriage movable independently of the first carriage on the guide transversely across the first and second coil strips;
• clamping the tail of the first coil strip and the head of the second coil strip in respective clamping jaws;
• parking the first and second carriages side-by-side on the guide in a first parking position adjacent first lateral edges of the first and second coil strips, the first carriage and the cutting head thereof as well as the second carriage and the welding head thereof being completely beyond the first lateral edges of the first and second coil strips in the first parking position;
• cutting the tail of the first coil strip and the head of the second coil strip and subsequently welding the tail of the first coil strip to the head of the second coil strip by sequentially moving the first and second carriages completely across the first and second coil strips and parking the first and second carriages side-by-side on the guide in a second parking position adjacent second lateral edges of the first and second coil strips, the first carriage and the cutting head thereof as well as the second carriage and the welding head thereof being completely beyond the second lateral edges of the first and second coil strips in the second parking position.