AN INDUCTION HEAT SEALING DEVICE AND A METHOD FOR TRANSVERSALLY SEAL A TUBE OF PACKAGING MATERIAL

• Main Authors: ISRAELSSON, Karl, LINDVALL, Magnus, MELIN, Max, KARLSSON, Per, PALMQUIST, Patrik, ANDERSSON, Håkan
• Format: Patent
• Language: English; French; German
• Published: 12.08.2020
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS; PACKING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; STORING; TRANSPORTING; UNPACKING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

An induction heat sealing device (300) for providing a transversal sealing of a tube (104) of packaging material, said induction heat sealing device (300) comprising a main body (302) comprising a first and a second sealing surface (314a, 314b) arranged to face the packaging material during a sealing state (S), a recess (308) provided in the main body (308) for receiving a knife during a cutting state (C), wherein the first and second sealing surface (314a, 314b) are placed on opposite sides of the recess (308), and an electric conductor arrangement (306a, 306b, 306c, 306d), provided in the main body (302), for inducing eddy currents in the packaging material during the sealing state (S), wherein at least part of the first and second sealing surface (314a, 314b) are inclined and provided with a first and a second top section (316a, 316b), respectively, such that particles in a product held inside the tube (104) are pushed away from a sealing band of the tube as the sealing band is pressed towards the first and second top section (316a, 316b).