Patent ID: 6761305
Filing Date: 2004-07-13
Classification: B29C,B29D,B29L,E04C

Abstract:
A device for manufacturing a honeycomb structure with a plurality of flexible material strips arranged next to one another, the strips being connected to one another, the material strips having a corrugated shape with a U-shaped cross section of essentially straight vertical partial areas and curved horizontal partial areas, the material strips being connected to one another at contact lines of the straight vertical partial areas, the device comprising:laterally disconnected welding sections equipped with heated welding wires, by which said flexible material strips; are guided, said material strips being welded to one another by means of a comb-like finger system, moveable into the material strips to generate a welding surface, and to fold the material strips to a honeycomb structure by a lateral displacement of either the finger system or the welding sections and to perform a pressing-on motion by either the finger system or the welding sections, to press two material strips onto a heated welding wire, thermally connecting the material strips; and feed elements generating a feed motion of the honeycomb by a distance of one honeycomb hole diameter whenever a welding cycle of one honeycomb layer is performed after the finger system has moved out of the honeycomb layer after the welding of the material strips is finished, and the finger system or the welding sections being laterally displaced by; a distance corresponding to twice the distance between two welding spots and wherein the finger system or the welding sections perform a lateral displacement by the same distance during the first welding cycle in one direction and during the following welding cycle in the opposite direction.