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drive technology, and we are very satisfied with it,” summarised Delboo. Referring to the SmartShed project, he said: “This was particularly demanding from a technological point of view. The solution we needed was not available on the market. That’s why the individual adaptations were necessary. With Lenze, this worked out excellently. We had a very good partnership here, with constructive technical meetings and ultimately a high-end solution. That was particularly important to Picanol.”
Lenze
www.lenze.com
“Lenze supplies and controls the
AIRJET WEAVING
prototype very quickly in development,”said Emmanuel Delboo, R&D Engineer at Picanol. Denayer added: “Picanol is one of the
biggest players in the market and together we have been implementing exciting automation projects for years.”
INTELLIGENT COOLING CONCEPT The motors in particular required a special design in cooling to enable a quick start-stop with high torques. Delboo said: “Picanol relies on a central oil circuit for this, which lubricates all components and simultaneously takes care of cooling.” The Belgians rejected initial thoughts of implementing a separate water circuit, as this would have required a second supply system.
MOTION CONTROL BY LENZE Another exciting aspect is the space-saving design of the drive electronics. Lenze supplies and controls the motors with servo inverters from the i700 series – largely in the form of double axes in view of the compactness required. Delboo explained: “The control cabinet is designed into the machine so that the OmniPlus-i airjet requires as little installation space as possible. Available space is always in limited in weaving mills.” To ensure that the controllers don’t run out of
breath in view of the cycle rates of 1200 weft yarns per minute, the i700s are liquid-cooled by cold plate – also from the central oil supply. “Heat is dissipated without fans, which would
quickly become clogged given the high fibre loads in the air from textile manufacturers," explained Denayer. Depending on the size of the machine, eight to 16 servo axes are used. Motion control is primarily electronic cams calculated by the Lenze controller.
A LONGSTANDING PARTNERSHIP During the many years of cooperation, Picanol
and Lenze have successfully implemented numerous projects. “For our high-end machines, we also expect high-end solutions from our technology suppliers. Normally, we use Lenze’s standard control and
motors with servo inverters from the i700 series – largely in the form of
double axes in view of the compactness required”
The solution was jointly developed: Picanol and Lenze. Watch the video here:
https://youtu.be/4rPlWwqnP78
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