WELDING MACHINE FOR CONNECTION OF OVERLAPPING MATERIAL WEBS

摘要

Welding machine for edge-side connection at the edge of overlapping material webs, wherein the materials are connectable to one another under the effect of heat and subsequent pressure, with a chassis on which at least guide rollers, a heating device and at least one pressure roller are arranged. The heating device has a cantilevered contact heating element that can be inserted laterally between the edges of the material webs, wherein the chassis is driven by an electric motor which is arranged on a longitudinal leg of the chassis. The electric motor according to the invention is formed as a brushless DC motor and the reduction gear as a planetary gear, which are united by a drum drive motor. In this case, the direct current motor is preferably a disk rotor motor. The chassis has a lateral leg which is adjustable perpendicularly to the working direction relative to the longitudinal leg.

主权项

1. Welding machine (1) for edge-side connection of overlapping upper material webs with overlapped lower material webs, wherein the materials are connectable to one another under the effect of heat and subsequent pressure, with a chassis (2) on which at least guide rollers (5), a heating device (6) and at least one pressure roller (8) are arranged, wherein the heating device (6) has a laterally cantilevered contact heating element (7) that can be inserted between the edges of the material webs, wherein the pressure roller (8), which can be placed on the edges of the material webs, is arranged behind the contact heating element (7) in the working direction and driven by an electric motor with a downstream reduction gear, wherein the chassis (2) is L-shaped or T-shaped with a longitudinal arm (3) extending in the working direction and a lateral leg (4) extending at right angles to the longitudinal leg (3), characterised in that the electric motor is a brushless DC motor and the reduction gear is a planetary gear, which are combined as a drum drive motor (9).