Patent ID: 6145564
Filing Date: 2000-11-14
Classification: B29C,Y10T

Abstract:
Welding cylinder (2), mounted in a frame (1, 1') and comprising a rotary drive and welding strips (3), which can be adjusted continuously in the radial direction, run parallel to the axis of rotation, and are distributed at uniform angular intervals over the circumference,comprising a pressure strand of a continuous pressure belt (8), which is looped around one part of its circumference, while the loose side of the belt travels over guide rolls (7) and the rollers of a web storage (26, 28) andwherein between the guide rollers (7), bordering the pressure strand, the web (10), to be provided with cross welds, runs up onto said welding cylinder and down from it,characterized in thattwo pairs of swivelling and locking levers (6, 6'), whose free ends bear the guide rolls or guide rollers (7), over which the pressure belt (8) runs up onto the welding cylinder (2) and down from it, are mounted in the frame (1, 1').