Automatic liquid scraping device for extraction

The utility model relates to the technical field of extraction liquid scraping, in particular to an extraction automatic liquid scraping device which comprises a box body, a driving assembly is arranged on the box body, the output end of the driving assembly is connected with a fixing block, a detection assembly is arranged on the fixing block, and a liquid scraping roller is arranged at the other end of the detection assembly. The detection assembly is used for detecting the pressure between the liquid scraping roller and the diaphragm, a guide assembly used for guiding the liquid scraping roller to move is arranged on the box body, and a conveying assembly is arranged on the box body; in conclusion, according to the automatic liquid scraping device for extraction, manual adjustment is replaced with a mechanical structure, harm to the body of a worker is avoided, the pressure value between the liquid scraping roller and the diaphragm is detected and controlled through the detection assembly and the driving a