Patent ID: 6240992
Filing Date: 2001-06-05
Classification: B29C

Abstract:
Welding machine having a heating plate (21), comprising a frame (1), a heating plate (21), a first workpiece support device (22), a second workpiece support device (23) facing the first workpiece support device (22), first means (24) for moving the heating plate (21) along an insertion travel (39) parallel to its plane between a welding position engaged between the first and second workpiece support devices (22, 23) and a loading position withdrawn from the first and second workpiece support devices (22, 23), second means (25) for moving the heating plate (21) along a welding travel (29) perpendicular to its plane between two extreme positions, and third means (26) for moving the second workpiece support device (23) along a contact travel (129) perpendicular to the plane of the heating plate (21) toward and away from the first workpiece support device (22) and between respective bearing and withdrawn positions, said machine including indexing means (27) for indexing the welding travel (29) of the heating plate (21) by movement of its two extreme positions of welding travel (29) perpendicularly to the plane of the heating plate (21) toward or away from the first workpiece support device (22).