Polybag Seal Detection

Plastic bags are manufactured in a continuous web, with a seal and perforation between bags. Since the plastic is clear, it can be very difficult for traditional sensors to detect the perforations between the plastic bags in order to determine when to separate them.

Description

The D10 Expert and the light-averaging ability of the PIL46U fibers combine to reliably sense the bag seal in low contrast environments.

To ensure the bag is properly separated from the web, the D10 Expert signals the location of the perforation to the separation mechanism, based on the location of the seal; in effect the seal acts as a registration mark.

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