Confirmation of Ejection of Punching Scrap

If the press becomes clogged with ejected punched scrap it overflows and the scrap and the piece get pressed together in the mold, which may cause dents and scratches. This then necessitates corrections or, in the worst case scenario, the discard of defective items. The shape of scrap is irregular, so there are cases where clogging is not noticed because the light sent and received by the photoelectric sensor passes through. A vision system could detect scrap anywhere within the detection range.