ITM 2024Q&A SAFIR PRO S67 Staubli

Can you explain how the SAFIR PRO S67 automatic drawing-in machine enhances efficiency, adaptability to different weaving styles, and quality control in the weaving preparation process?

Today`s fast pace and cut-throat fabric production requires perfect warp beams that have been automatically drawn-in on our new SAFIR PRO S67. Weaving is thus optimized, less warp-related machine stops are the result – which in turn improves the weaving efficiency, productivity, and quality output of A-grade fabrics. The SAFIR PRO S67 has novel & enhanced features offering user benefits through high-tech features resulting in quick recognition of yarn colors, yarn characteristics and repeat to be considered in weaving through AWC 2.0 (Active Warp Control 2.0) – employing latest optics, sensors, and algorithms. Furthermore, SAFIR PRO S67 can be delivered with ICS – Initial Condition setting which facilitates fast start-up proceedings of the drawing-in process through pre-defined machine parameters. Going into remote control of SAFIR PRO S67, the machine can be linked to our safe and secure data cloud thus offering APC – Active Productivity & Drawing-in Control. The SAFIR PRO S67 will additionally speed up the drawing-in process since it is drawing-in up to 200 ends per min. thus guaranteeing a very high production rate.

Can we monitor and regulate various parameters such as warp tension, weft insertion, loom speed, and fabric quality?

With the SAFIR automatic drawing-in machines you can perfectly monitor different status information during drawing-in process. You can easily adapt the machine pre-settings to different yarn types. For certain we even offer kits, for instance for wool or fancy yarns. Here hard and software adaptations lead to quick start up of the drawing-in process.   You cannot monitor the fabric quality in the weaving process – it is actually even controlled before entering weaving through the automatic production of perfect warp beams on SAFIR PRO S67. With the Stäubli Active Warp Control 2.0 technology you ensure perfectly the quality of your final product after drawing-in: the complete weaving harness. The better the quality of this weaving harness, the higher the quality of your downstream weaving process and the more first quality fabric you will produce. Because you will not have any misaligned yarns that lead to weaving machine stops and secondary quality woven fabric.  
Need to know more about Stäubli’s Active Warp Control technology.

The handling, control, and monitoring of each individual warp yarn throughout the entire drawing-in process is decisive for the quality and perfection of the finished harness with warp beam. That’s why Stäubli developed “Active Warp Control 2.0” (AWC 2.0), which is optionally available on all SAFIR systems. AWC 2.0 controls and monitors the drawing-in process on the basis of the cont­inuously measured yarn properties and the programmed draw-in repeat.

Yarn properties

Optical, non-contact recognition and measurement of yarn properties is the essential function of AWC 2.0. Interpreting the measured data through image proces­sing by high-performance processors allows the determination of titre, colour, twist direc­tion and, within certain limits, even hairiness, transparency, and monofilament or multifi­lament characteristics. Measurements are done when the individual yarn is separated from the warp sheet and ready to be drawn in. Based on the measured data, AWC 2.0 controls the subsequent steps of the drawi­ng-in process.

Yarn titre and double-end detection

Based on the measured yarn titres, AWC 2.0 detects whether a double end has been separated by mistake. This is a standard function in all SAFIR configurations.

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