The deviation correction controller system on the thermal film slitting and rewinding machine is an automatic closed-loop system that automatically corrects the lateral deviation of the coil.
The servo rectification controller used in the rectification system of the rectification controller adopts a high-speed 32-bit CPU to drive a DC servo motor, and adopts a non-overshoot integral variable PL adjustment algorithm, which has high rectification accuracy and fast response. There are three working methods for the medium. It supports three working modes of chasing line, chasing edge, and aligning, supporting photoelectric sensor, ultrasonic sensor, CCO sensor; intelligent detection of sensor parameters, no need to calibrate sensor in most environments, automatic stroke measurement, no need for mechanical limit switch, no overshoot Integral variable PL adjustment algorithm, high precision, quick response, smaller error; ultra-high-speed 500 microsecond (0.5 millisecond) response speed; analog sensor signal 12-bit AO sampling, can also reach 700,000 times per second sampling speed. The servo deviation correction controller used in the deviation correction system adopts FL ruler digital filter and hysteresis filter, which has stronger anti-interference ability and more stable signal.
The working principle of the deviation correction controller of the thermal film slitting and rewinding machine is as follows: the deviation correction sensor detects the relative position of the edge, line or color block of the coil, compares the deviation between the detected value and the set value, and then converts it into a proportional signal to the electric drive for correction after calculation by the controller program. The deviation correction control system is composed of the controller, edge detection/line detection sensor, electric drive, deviation correction mechanism and other components. The system is divided into rewinding and unwinding rectification system and traveling rectification mechanism (can be customized). The detection methods include edge detection, line detection and alignment.
