Tetra Laval Holdings & Finance S.a.

Fabio Soci

Luca Gentili

Massimiliano Barbi

Fabrizio Sighinolfi

Mirco Lancellotti

Giulio Casini

Onofrio Pirrotta

There is described a sealing device for sealing packages filled with a pourable product within a packaging machine. The sealing device has at least one sonotrode comprising at least a sonotrode head and a vibration control unit connected to the sonotrode head and configured to actuate ultrasonic vibrations of the sonotrode head. The vibration control unit comprises one or more piezoelectric transducer devices configured to generate ultrasonic vibrations to be coupled into the sonotrode head and one or more temperature sensors configured to measure the temperature of the one or more piezoelectric transducer devices for determining and/or monitoring respective operating states of the one or more piezoelectric transducer devices.

Sealing device for a packaging machine, packaging machine having a sealing device and method of operating a sealing device

An ultrasonic sealing device including a sonotrode for sealing a packaging material, including a piezoelectric transducer to generate ultrasonic acoustic vibrations for the sealing, a housing, a power circuit connected to the piezoelectric transducer. The power circuit is enclosed in the housing, and an absorbent arranged in the housing to absorb moisture in an atmosphere therein to lower humidity. A method of controlling humidity in an ultrasonic sealing device is also described.

Ultrasonic sealing device

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Modena, Italy

Fabio Soci