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Multi-stage unit for processing a web packaging material in a food product packaging machine










Image Number 2 for United States Patent #6386851.

A multi-stage unit for processing a web packaging material in a machine for packaging food products, including a first processing station, a second processing station and a system for indexing the web packaging material comprising a first feeding device for step-feeding the web packaging material through the first processing station, a second feeding device for step-feeding the web packaging material through the second processing station, and a control unit controlling the first feeding device in response to a sensor detecting a first index code preprinted on the web packaging material, and the second feeding device in response to a second sensor detecting a second index code made on the web packaging material at said first processing station.








 
 
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