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[CN 201910431994.5] Double blank detection device for press and mold protection device for press
[CN 201910431994.5] Double blank detection device for press and die protection device for press Title: Double blank detection device for press and die protection device for press Application number: CN 201910431994.5 Applicant: Huitian Engineering Technology Co., Ltd. Application date: 2019-5-22 Patent type: Invention application for a double blank detection device (302) for press (100), the press is provided with a die cushion device (200) and is configured to automatically and repeatedly form the blanks (80) one by one. The double blank detection device (302) includes: a position signal acquisition unit (320) configured to acquire a slide position signal of the position of the slide (110) of the press (100); a load signal acquisition unit (310), It is configured to acquire a mold buffer load signal indicating the mold buffer load generated on the buffer pad (128) of the mold buffer device (200); and a double blank detector (330) configured to detect a state in which a plurality of blanks (80) are stacked as double blanks based on the slider position signal acquired by the position signal acquisition unit (320) and the die cushion load signal acquired by the load signal acquisition unit (310).
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