FIELD: machine building.
SUBSTANCE: device comprises a support with a first working surface and a sonotrode with a second working surface, which are intended for passage of packing material between them and for welding of the first section of material to its second section. At least one of the first or second working surfaces comprises a first welding surface forming a first expanded plane and a second welding surface forming a second expanded plane that has a different orientation than the first plane. First and second surfaces for welding are partially limited by cutting edge with direction of expansion along first and second welding surfaces, so that cutting edge separates first welding surface from second one. First and second working surfaces are configured to simultaneously weld and cut material. First expanded plane and/or second expanded plane form an angle (α, β) in range from 72° up to 90° relative to the main direction of the support and/or sonotrode, containing the first and second welding surfaces, wherein the main direction (A) is perpendicular to the direction of expansion of the cutting edge. Invention also relates to a device for producing packaged portion-packed articles and a method in which the above-described sealing device is used.
EFFECT: higher efficiency is provided.
18 cl, 13 dwg
