Tech@Lunch: Low-cost vision for wound roll quality monitoring

During this Tech@Lunch, we will demonstrate how we use an inexpensive machine vision system to monitor the winding quality of rolls during the winding process. With µm accuracy, we measure the geometry of a wound roll, which offers new possibilities for quality control in web processing.

We will discuss how machine vision is a powerful and cost-effective alternative to traditional measurement techniques. In addition, we will discuss typical defects and geometric deviations in wound rolls and examine the impact these can have on machine components and process stability.

Finally, we show how the winding quality during winding and across the entire roll width can be analysed using a 3D spectral analysis of the rolling geometry.