Edge Tracking

Ultrasonic Guide Device (Ultrasonic Guide Sensor) Features: A guide device system is basically a displacement sensor to detect the strip position and compare it with the given amount. If there is an offset, the actuator will correct the offset until the given amount is required. Inside. Since the offset of the center position is difficult to measure, the edge position of the material is usually taken as a reference for the control signal. The test strip used was a printing web, which was 220 mm wide and had a small tension, and wrinkles and curling were not allowed. The strip is fed by the unwinding roller through the intermediate guiding roller to the winding roller, and the winding roller is driven by the DC motor, which can be steplessly regulated. The magnetic powder clutch is used as a load to make the strip have a certain tension, and the tension is steplessly adjusted by the exciting current applied to the magnetic powder clutch. The lateral offset of the strip during transport is detected by the photosensor, producing a telecommunications that is proportional to the offset.

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