Maxson Automatic Machinery Co. of Westerly, R.I., introduced an accumulating festoon so inline sheet manufacturers can closely match the speed of downstream processes and maintain accurate sheet length.
The system handles a closed-loop control for the roll stand, making immediate speed changes that would otherwise be impossible, according to Maxson, because of the weight of the unwinding roll. An air cylinder spreads the festoon rolls apart or draws them together. Other features include a transducer, an electrical-pneumatic converter and automatic compensation of the roll stand tension control and brake pressure.
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