Assembly for welding tubular film, for packaging applications, has a linear motor with a gearing of cam plates for the primary and secondary motor sections to move the welding pads on complicated horizontal paths

摘要

The assembly to weld tubular film (1) takes the film tube between two welding pads (2,3). The welding pads are moved by a linear motor (8) through a gearing (12). The gearing has a cam plate (13) bonded to the primary section (10) of the linear motor and a cam plate (19) bonded to the secondary section (11) of the motor. Each cam plate has a curved path line (14) to take and move the cams (15) at the welding pad carriers (6,7).