Nordson Corporation

Gregory Floyd Clark

James Gordon Himes, Jr

A hot melt material coating system (10) is provided, comprising (i) a rotary coater (12) driven by a motor (604); (ii) a rotary coater position, speed and direction indicator (610) operatively connected to the rotary coater and providing a signal representing the position, speed and direction thereof; (iii) a web position, speed and direction indicator (612) operatively connected to the web and providing a signal representing the position, speed and direction thereof; and (iv) a control system (600). The control system (600) includes (a) a first control circuit (614) for receiving the rotary coater position, speed and direction indicator signal and the web position, speed and direction indicator signal, and for outputting a control signal to the motor in response to the indicator signals to maintain a predetermined relationship of the position, speed and direction of the rotary coater with respect to that of the web; (b) a web position indicator (618) positioned proximate to the web and providing a signal representing the position thereof with respect to the web; and (c) a second control circuit (616) for receiving the web position indicator signal and the web position, speed and direction indicator signal, and for outputting a web position correction signal to the first control circuit, the first control circuit varying the control signal in response to the web position correction signal.

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Alpharetta, GA, United States of America

Gregory Floyd Clark