Ultrasonic welding device and ultrasonic welding method for controlling continuous ultrasonic welding processes

Abstract

An ultrasonic processing method and an ultrasonic processing device may include a controlling/regulating module, preferably a digital controlling/regulating module, which is integrated into a signal processing of the ultrasonic generator so that a plurality of generator data with respect to the ultrasonic generator are processible in the ultrasonic generator. At this, a power actual value Pist is compared with a power reference value Psoll of the ultrasonic generator via a gap regulator in the controlling/regulating module to specify a position reference value POSsoll of the sonotrode relative to the roll for adjustment of the power reference value Psoll of the ultrasonic generator, and/or a power actual value Pist is compared with a power reference value Psoll of the ultrasonic generator via an amplitude regulator in the controlling/regulating module to specify an amplitude reference value Asoll to the ultrasonic generator for adjustment of the power reference value Psoll.

Description

technical field [0001] The invention relates to an ultrasonic welding device and an ultrasonic welding method for controlling or regulating a continuous ultrasonic welding process for ultrasonic welding of textile materials. Background technique [0002] Devices for continuous ultrasonic welding of textile materials are widely known. In these devices, the ultrasonic oscillating unit usually comprises a transducer, generally an electro-acoustic transducer, on which the sonotrode is mounted via an amplitude conversion component also called a booster. However, there are also embodiments in which the sonotrode is directly connected to the transducer. In such an ultrasonic oscillating unit, either the oscillating unit is supported in the converter case, or the amplitude conversion member is supported by a retaining ring, or the sonotrode is supported by a base. These support structures are usually arranged on, or at least close to, the oscillation nodes of the ultrasonic oscill...

AI Technical Summary

Problems solved by technology

In fact, these profiles are notoriously difficult to achieve a uniform quality weld

Since the stress of the fabric material is greater than the blocking force, the support structure and the gap of the drive assembly of the ultrasonic oscillation unit will cause the sonotrode to yield or retreat, and the above gap will be excessively opened, so that the subsequently formed seam will no longer have proper binding force

Therefore, the welding effect will be unsatisfactory, especially in the position of the seam

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