Ultrasonic welding machine uses electrical drives for high precision

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  • Joining process can be regulated individually and very precisely
  • Starting position can be freely selected
  • Even speed-dependent or force-dependent weld profile is possible

With its new Electrical Motion ultrasonic welding machine (working frequency: 20 kHz), the Swiss company Rinco Ultrasonics enters new dimensions: away from the traditional pneumatic drive to an electrically driven welding machine.

Joining process can be regulated individually and very precisely

With this system, the relevant parameters for the joining process can be regulated individually and very precisely, from the positioning of the sonotrode and the applied welding force to the welding rate. This leads to considerably better results, whether in welding, punching, cutting or sealing of moulded thermoplastic parts, nonwovens or synthetic textiles. Another The welding machine is equipped with a high-performance industry-type PC that can be operated via a 12-inch touchscreen. The new Electrical Motion can be used for demanding joining operations in automotive construction, medical technology, packaging, textiles and the domestic appliance industry.

Rinco

Starting position can be freely selected

The Electrical Motion is a further development of the Dynamic 3000 ultrasonic welding machine (also with a working frequency of 20 kHz), which was designed especially for technically demanding welding operations for medium to large-sized thermoplastic parts. Unlike the compressed air-driven design, in which the feed for the sonotrode returns after
every weld cycle to the starting position in the pneumatic cylinder, the starting position with the Electrical Motion can be freely selected. As a result, the weld cycle can often be shortened, depending on the geometry of the object to be welded.

Even speed-dependent or force-dependent weld profile is possible

The welding mode can also be freely selected. A total of eight modes are available for this: from time, distance and
energy-related modes, to a combination of time and energy and a mode for presetting the melting rate. For all welding modes, the ultrasonic trigger can be adjusted as force, distance, time or as an external signal. The actual welding process can, depending on the welding mode, be subdivided into as many as ten steps. With this level of detail, the welding process can be controlled far more accurately than with a pneumatic drive. Even a speed-dependent or force-dependent weld profile can thus be achieved. All this results in a much improved weld quality so that even parts that were previously almost impossible or very difficult to weld.



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