US 12,168,327 B2
Counter-tool, ultrasonic welding machine and method for producing a seal weld and cosmetic weld
Andreas Runck, Karlsruhe (DE); and Jürgen Pfrommer, Straubenhardt (DE)
Assigned to HERRMANN ULTRASCHALLTECHNIK GMBH & CO. KG, Karlsbad (DE)
Appl. No. 17/927,823
Filed by Herrmann Ultraschalltechnik Gmbh & Co. KG, Karlsbad (DE)
PCT Filed Jun. 23, 2021, PCT No. PCT/EP2021/067074
§ 371(c)(1), (2) Date Nov. 25, 2022,
PCT Pub. No. WO2022/002706, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 10 2020 117 463.2 (DE), filed on Jul. 2, 2020.
Prior Publication US 2023/0241845 A1, Aug. 3, 2023
Int. Cl. B29C 65/00 (2006.01); B29C 65/08 (2006.01); B29L 31/00 (2006.01)
CPC B29C 66/81469 (2013.01) [B29C 65/08 (2013.01); B29C 66/723 (2013.01); B29C 66/81427 (2013.01); B29C 66/81435 (2013.01); B29C 66/83221 (2013.01); B29C 66/8511 (2013.01); B29L 2031/7128 (2013.01)] 13 Claims
OG exemplary drawing
 
1. Counter-tool for an ultrasonic welding machine, wherein the counter-tool comprises two separate sealing surfaces which are adapted to come into contact with a material to be processed, characterized in that the counter-tool is formed in two parts, wherein the two parts of the counter-tool are movable relative to one another, and each of the two parts comprises one of the two sealing surfaces, wherein the two parts of the counter-tool are movable relative to each other such that, in a first position, the first sealing surface protrudes beyond the second sealing surface and, in a second position, the second sealing surface protrudes beyond the first sealing surface such that welding is possible only via the first sealing surface or only via the second sealing surface, wherein the first sealing surface is provided for the production of a seal weld while the second sealing surface is provided for the production of a cosmetic weld.