Paper material positioning device of paper cup

The utility model discloses a paper material positioning device of a paper cup. The device comprises a material placing table, an L-shaped positioning rod and an elastic body, a blanking hole is formed between the upper surface and the lower surface of the material placing table; a plurality of limiting grooves are formed in the upper surface of the material placing table; each limiting groove is formed between the edge of the upper surface of the material placing table and the edge of the upper end surface of the blanking hole; a port at one end of the limiting groove is positioned on the side surface of the blanking hole; the horizontal parts of the plurality of L-shaped positioning rods are movably mounted in the limiting grooves respectively; the lower part of the left side surface of the vertical part of the L-shaped positioning rod is fixedly connected with one end of a threaded rod; the threaded rod is in threaded connection with a threaded hole in a fixing block, the fixing block is installed on the u