Quality control system, used in extruder for measuring color in plastic granules, comprises sample removing units for bulky material to automatically transport sample from removal site to measuring site

摘要

Quality control system comprises sample removing units for bulky material to automatically transport the sample from the removal site to a measuring site and for automatically measuring the color of the sample in an imaging-processing device. Preferred Features: A sample removing unit removes small amounts from the product stream. A transport container holds and releases a sample amount. The sample is automatically transported in a tubular transport container using a pneumatic drive. The measuring results are used for the automatically controlled correction of the mixture dose.