IMPROVED APPARATUS FOR FORMING A TUBE FROM POLYFOIL WEB FOR HIGH CAPACITY ASEPTIC FORM, FILL AND SEAL MACHINES

摘要

Improved form, fill, and seal machine (10) for making aseptic sealed packages (31) incorporating a plurality of web guiding rollers (142, 144) and flanges for manipulating a continuously fed polyfoil web (20) into a longitudinal tube (22) having a triangular cross section and opposing superimposed web edges that are sealed together to form the longitudinal seal in the tube. Web advance may be continuous or intermittent. Induction heating is used to longitudinally seal the edges of the web together to form a tube.