Green and environment-friendly printing ink not prone to oxidation discoloration, preparation method and device thereof

The invention relates to the technical field of printing ink, and particularly discloses green and environment-friendly printing ink not prone to oxidation discoloration and a preparation method and a device thereof. A mounting body is fixedly connected with a support, a motor is fixedly connected with the mounting body, and one end of a shaft rod is fixedly connected with the output end of the motor; the other end of the shaft rod is inserted into a tank body and fixedly connected with a sheet body, an outer ring body is fixedly connected with the sheet body, one end of the vertical sheet is fixedly connected with the outer ring body, the other end of the vertical sheet is fixedly connected with one end of the inclined sheet, the other end of an inclined sheet is fixedly connected with the shaft rod, and a spiral sheet is fixedly connected with the shaft rod. Through the structural arrangement, the stirring speed of raw materials can be effectively increased, stirring and mixing are more uniform, and the inf