Ultrasonic welding of slide fasteners to an article

Details Ultrasonic welding of slide fasteners to an article Ultrasonic welding of slide fasteners to an article

B - Operations, Transporting

23

P

26/28, 154/29.02

B23P 11/00 (2006.01) B23P 19/00 (2006.01) B23P 21/00 (2006.01) B32B 31/00 (2000.01)

Patent

CA 1053447

ABSTRACT OF THE DISCLOSURE A method and apparatus for ultrasonically welding a zipper to another material wherein the material to which the zipper is to be joined is first loaded into a movable anvil and clamped between the anvil and a cutting plate. A die then cuts the material against the cutting plate. After cutting against the plate, the punch overtravels and forces the edgesof the material up vertically between the ends of two plates. Then a vacuum applied above the plates draws the edgesof the material back over the ends of the plates and holds the edges of the mater- ial in place. The zipper is placed into a zipper nest above the edgesof the material. An ultrasonic welding system then welds the zipper to the turned back edges of the material.

226465

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