Welding and cutting tongs for a film of synthetic material

摘要

An apparatus for welding and cutting a film of single-layer or multi-layer synthetic material includes two jaws which are movable relative to one another. One of the jaws has a welding contact zone which includes a strip which has a groove of substantially v-shaped cross-section separating a pair of wings parallel to the edge of the corresponding jaw. The other of the jaws is equipped with a means for cutting the film which includes a wire of circular cross-section projecting relative to the edge of the jaw which supports it, so that the wire and the groove can interact with one another to make the cut as the weld is performed by the wings of welding strip.