| 摘要 |
In, for example, the welding of circular objects, for instance packaging containers, use is made of an ultrasonic assembly for circular sealing, the assembly including a transducer (2) and an annular sonotrode (4). The transducer is radially, mechanically connected to the sonotrode, possibly via a booster (3). In order to avoid heating and possible damage to the connection point to the sonotrode, this is provided, in the assembly according to the present invention, with an adapter portion (15) which is in the form of a projection (16) radially projecting from the sonotrode (4). At its end facing away from the sonotrode, the projection (16) is provided with an anchorage device (14) for direct on indirect mechanical connection to the transducer (2), and the adapter portion further displays a region, at its end facing towards the annular portion of the sonotrode (4), of reduced cross-sectional area, which together reduces the harmful effects of the ultrasonic waves on the anchorage region. |
