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 |
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.
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