Automatic oil discharging and returning device for carcass-free coiled material

The utility model relates to the technical field of coiled material processing devices, and discloses a carcass-free coiled material automatic oil discharging and returning device which comprises an oil tank, oil outlet pipes are fixedly connected to the two sides of the bottom of the oil tank, first valves are arranged in the oil outlet pipes, and a sealing layer is fixedly connected to the edge of the interior of the oil tank. An oil pump is fixedly installed in the sealing layer, the two ends of the oil pump are fixedly connected with a first oil pumping pipe and a second oil pumping pipe correspondingly, and one end of the first oil pumping pipe is fixedly connected with a flange. The utility model has the following advantages and effects: during oil drainage, the first valve is controlled to drain oil very conveniently, and when oil in the second oil pumping pipe needs to be discharged out of the oil tank, the second valve is closed, and the third valve is opened, the oil in the second oil pumping pipe c