Verfahren und Vorrichtung zur Herstellung eines Faltenbalges

摘要

Equipment for the production of a bellows has pressure and welding devices to engage the sides of the web of material and it has a heater for the parts to be welded. The pressure/welding devices have at least two round tools opposite each other and acting together; these are moved along the line to be welded, and the system has also a clamping device at the area of pressure/welding. ADVANTAGE - The equipment is simple in both design and operation. It produces uniform folds in the bellow with good welds and can allow them to use a supporting frame.