Improvements introduced in dumping machines duplex de carton.consistent in incorporating a reception and error reception system that comprises a steel roller (1) in charge of guiding the carton band (6); a rectangular box (2), swivel in (3), on said roller (1), through pneumatic cylinders (4), the box containing an optical detector equipment (5), composed of a fluorescent tube (7), which provides a dispersed light captured by the optical detector divided in thirty and three transparent modules, so that any default or manchacontrastante is absorbed by these, which receive lower amount of light, which will be captured by fotodiosos or photodetectors (9), that will send such signal in the form of tension variation. (Machine-translation by Google Translate, not legally binding)
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