System information

Function

With follow-up control, the sensor and tool are mounted jointly on a linear guide. Here, the sensor detects the position of the web and thus determines the target position value of the tool. This is compared with the actual value and a correction signal is output to the actuator. As a result, the tool is always followed up with a constant distance to the guide reference.

Area of use

Follow-up control systems are used when processes such as coating or cutting must be executed with a constant distance to the web edge or to a guide reference on the web.

Application

The highest control accuracy is reached when the sensor and tool (doctor blade limitation) can be assembled in compact form on a linear unit. Edge detection always takes place in front of the tool, in the direction of web travel.

System components

Motorized support beam VSB97

Motorized support beam for cutting blade positioning

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