Negative pressure type cold roller oil scraping device

The utility model relates to a negative pressure type cold roller oil scraping device which comprises a shell body provided with a top part, a bottom part, a first side part, a second side part, a front surface and a back surface, the top part is opposite to the bottom part, the first side part is opposite to the second side part, and the front surface is opposite to the back surface; the front surface is one surface of the shell body facing to-be-scraped base mold oil; the oil scraping part is fixedly arranged at the bottom; the oil pumping pipeline is arranged in the shell body and penetrates through the interior of the shell body from the first oil pumping pipeline opening of the first side part to the second oil pumping pipeline opening of the second side part, a plurality of sub oil pumping pipelines are arranged between the oil pumping pipeline and the bottom, and a plurality of sub oil pumping pipeline openings are formed in the bottoms of the plurality of sub oil pumping pipelines; the oil pumping pip