Textile Rewind System

“Many of us come into contact with nonwovens every day, often without realizing it. The cloth-like material is used as a light and warming fabric in clothing. It is used to make protective face masks, which became an everyday item during the SARS-CoV-2 pandemic. Freudenberg has been producing nonwovens for many decades and two of the company’s experts played a decisive role in its success story by developing new production methods, optimizing existing manufacturing processes and opening up new markets for the material – over a period of several decades. The two nonwovens pioneers were Dr. Carl Ludwig Nottebohm (1904-2001) and Dr. Ludwig Hartmann (1925-2010).”

After previous attempts of getting their rewind application to work, the team at Freudenberg was referred to SK Technologies by one of our customers. The system they had in place was not able to cater for their needs in product variations, gauge and textile strength. We proposed an AC Closed loop system by using their existing AC Motors and gearboxes and retrofitting them with encoders to in order us to achieve the desired control and response needed for such a wide variety of production parameters.

By using one of Control Techniques’s pre-developed software programs, called Winder Solution, we were able to meet their demands. The HMI that was installed in a local position by the machine gave the operators not only visual information but also an easy intuitive way for them to set the production up as well as control over the system. HMI development was done by SK Technologies. Dives used was the Unidrive M700 series with SI-Applications modules for software integration.