Automatic oil injection device for rolling mill

The utility model discloses an automatic oil injection device for a rolling mill, which comprises a bottom plate, two vertical plates, a first oil injector, a second oil injector, an oil storage tank, an oil pump and an oil collecting box, the vertical plates are fixed at the top of the bottom plate, the first oil injector is connected with the vertical plates, and an oil injection nozzle of the first oil injector is arranged downwards; the first oil sprayer is used for spraying oil to the bottom of the strip steel, the second oil sprayer is arranged below the first oil sprayer and connected with the vertical plate, an oil spraying nozzle of the second oil sprayer faces upwards, the second oil sprayer is used for spraying oil to the bottom of the strip steel, and the oil pump is used for pumping oil in the oil storage tank into the first oil sprayer and the second oil sprayer. According to the oil spraying device for the strip steel, oil can be sprayed to the top and the bottom of the strip steel, the heat di