Tension-free unwinding: Zünd introduces cradle feeder for rolled textiles
With the cradle feeder, Zünd brings to market a new roll-feed system that prevents tension and distortions when advancing stretch fabrics and other
textiles. Integrated edge control ensures precise and reliable positioning of the material on the cutting surface.
Simple handling, automated processes, and high-quality results – these are the basic requirements any state-of-the-art roll-handling system has to meet. Add to that the kind of flexibility that is indispensable for complying with increasingly individual customer needs. To address all of these demands, Zünd has added a cradle feeder to its assortment of automated material-handling devices. At the core of the new feeder is a cradle equipped with an array of conveyor belts. For ergonomic loading, the back of the cradle tilts down. A dancer bar continually registers fluctuations in web tension. If necessary, the system automatically regulates the feed rate, which is also in synch with the cutter and further minimizes tension and resulting distortions.
Intelligent edge control continually governs the precise positioning of the web on the cutting surface. If the sensor detects any irregularities, the cradle feeder adjusts automatically by correcting the alignment of the cradle. Because of this capability, even less than perfectly wound rolls can be fed accurately onto the cutting surface. When the roll comes to an end, the unwinding/advancing process stops automatically, which permits error-free feeding of textile rolls even in cases where the end of the material is attached to the core. Because no shaft is needed to hold the roll in place, there are no particular requirements in terms of core diameter or characteristics. Even rolls with crimped, broken, or missing cores are suitable for processing with the cradle feeder.
The cradle feeder is suitable for both unwinding and rewinding rolls. When a job is completed, the material can easily be rewound back onto the roll. Rewinding textiles this way creates tight, compact rolls without any air pockets. For even greater flexibility, the cradle feeder can be equipped as needed with an optional secondary roll-off unit with shaft. The new feeder is available immediately for the Zünd S3, G3 and D3 cutter series (it comes in widths of 1800 mm/71 in, 2270 mm/89 in and 3210 mm/126 in).
The new Zünd cradle feeder permits tension-free advancing of textile materials, including stretch fabrics.