TRANSPORT DEVICE FOR A CONTINUOUS MOVING WEB OF MATERIAL, IN PARTICULAR A STRETCHING DEVICE FOR PLASTIC FILM WEBS

摘要

The improved conveying device of the continuous moving web, in particular the traction device of the plastic film web, consists of a hook element (1) which is located on both sides of the web (11) and which can move along the guide rail system (3). Linear motors 5 'and 5 and guide rails 3' and 3 are respectively provided on the upper and lower portions of the moving web on both sides of the moving web 11. The arrangement of the upper rail 3 'and the linear motor 5' is on the opposite side of the arrangement of the lower linear motor 5 and the lower guide rail 3 relative to the moving web. In one alternative, the maximum vertical and maximum horizontal clearances (a, b) between the selected points (S) between one intersection point (S) on the selected web (11) anchor point to ensure minimal load is applied to the hook element installation. Maintained.