WEAVING PREPARATION | ACTIVE WARP CONTROL (AWC)

Optical and non-contact state of the art technology

The 100% controlled identification and handling of warp yarns in order to achieve the highest quality and reliability in warp processing – namely during automatic drawing-in – is the purpose of “Active Warp Control” (AWC).

The central aspect of AWC is the optical, non-contact recognition and measurement of yarn characteristics by two cameras. High-performance processors analyse the images and deliver precise data at millisecond intervals on the condition of the warp yarns to be processed. By comparing this data with the target data, which is available to the system through the programmed draw-in repeat on the one hand and the weaving mill’s own empirical values on the other, errors are detected with a high degree of certainty.

Drawing-in with SAFIR systems featuring Stäubli AWC makes weaving mills profit from a weaving process based on perfectly drawn-in harnesses and highest performance in weaving.

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AWC MAKES DRAWING IN THE QUALITY DRIVER

Higher productivity and better fabric quality in the weaving mill

CUSTOMER'S WORD

"Capability and agility for premium fabric processing. To achieve both high productivity and agility, Fraas has been counting on Stäubli shed motions such as electronic rotary dobbies and Jacquard machines since the 1980s, and the company recently decided to invest in a new SAFIR S60 automatic drawing-in machine. With its unique yarn separation system, this machine supports perfect preparation of the warp and quality of the final product. Because Stäubli also provides reliable and prompt service and always continues to listens to customers about their needs and requirements, this success story will continue as long as winters are cold and people want to bundle up in beautiful scarves."

Alexander Schmidt, Board Member, the 5th generation of the founder Valentin Fraas

AWC STANDARD FEATURE IN SAFIR DRAWING IN SYSTEMS

Double-end detection

Processed by two cameras from different angles. Automatic stopping when doubled separated yarns are detected. Double-end detection can even be used when warps with yarns of various yarn counts are to be drawn in. In this case, AWC (with additional options) uses the programmed draw-in repeat to check whether yarns with the correct yarn count are present in the correct position for drawing in.


Find further information about Stäubli’s weaving preparation solutions www.staubli.com