DEVICE AND METHOD FOR SEALING FILLED CARDBOARD/PLASTIC COMPOSITE PACKAGING BY MEANS OF ULTRASOUND

摘要

The invention relates to a device and method for sealing filled cardboard/plastic composite packaging by means of ultrasound with at least one folding tool and at least one welding tool in addition to a transport device used to transport the packaging. The seam that is to be sealed is initially folded and the contact surfaces are subsequently welded by welding tools. In order to produce a reliable weld seam in as short amount of time as possible, the various filled packaging items which are arranged successively are fed to a continuously rotating transport wheel, where they are folded with continuously rotating folding tools such that a joint is formed and the joints are welded by ultrasound by means of at least one entrained welding tool.