公开(公告)号：EP1216760A2

公开(公告)日：2002-06-26

申请号：EP01870279.5

申请日：2001-12-18

Applicant: Digitec S.r.l.

Inventor： Ferraboli, Aurelio ,  Lola, Gianfranco

IPC: B06B1/02 ,  B23K20/10 ,  B29C65/08

CPC classification number: B29C65/08 ,  B06B1/0253 ,  B06B2201/72 ,  B23K20/10 ,  B29C66/9512

Abstract: This invention relates to a power generator for an ultrasonic welding head made up of an emitter, a mechanical amplifier and a sonotrode, to supply energy to an ultrasonic transducer in the form of a preset alternating amplitude and frequency signal. It comprises, in combination, a power feeder, a power converter, a power transformer, a phase and frequency control device for controlling the power converter, and a micro-controller programmed for digital control of frequency and power of the piloting signal of the ultrasonic transducer, so as to tune the frequency of the generator to that of the emitter and to compensate sonotrode frequency variations.

Abstract translation: 本发明涉及一种用于由发射器，机械放大器和超声波发生器组成的超声波焊接头的发电机，以预设的交变幅度和频率信号的形式向超声波换能器提供能量。 其组合包括供电器，功率转换器，电力变压器，用于控制功率转换器的相位和频率控制装置，以及被编程用于数字控制超声波引导信号的频率和功率的微控制器 传感器，以便将发生器的频率调谐到发射器的频率并补偿超声波发生器的频率变化。