Web Guiding System Application And Working Principle

The web guiding system is a closed-loop control system, including controller, sensor, and linear guide mechanism usually. It is the basic part of closed-loop control. Firstly, the rectification sensor detects the edge or line of the webs, and reads the actual position of the coil and the deviation of the set position. The amount of shift is converted into an electrical signal proportional to it, and then the electrical signal is sent to the controller. The signal is amplified and calibrated by the controller, and then output to the linear driver. The linear driver drives the corrective guide according to the magnitude of the signal. The positive mechanism restores the coil to the set position. The drive signal of the current drive is only proportional to the amount of deflection of the coil, which allows precise control of the various coils and guiding systems.

Web guiding controller refers to the technical operation taken by the manufacturer to keep the side of the coil consistent during the spraying, printing, punching, laminating, slitting or other coil winding process. Because the edge of the coil is not aligned, it will cause subsequent step errors, resulting in material waste or downtime adjustment. Therefore, when processing the processed coil, it is necessary to perform a timely guiding operation on the offset coil, which is called rectification. The entire process of the device constitutes a set of correction systems.

Web guide systems are extremely diverse and are essential in the packaging, printing, labeling, construction materials, pulp, household paper, plastics, garments, cables, metal processing, nonwovens, corrugated paper processing and other industries. A typical correction system includes a guide controller, an edge or line inspection sensor, a guiding frame, and a driver.