Automatic knife grinding device

The utility model relates to a knife grinding device, in particular to an automatic knife grinding device which comprises a base, a second sliding groove is fixedly formed in the upper surface of the base, a pressure sensor is fixedly arranged on the groove wall of one side in the second sliding groove, and a first motor is fixedly connected to the surface of one side of the base. The output end of the first motor is fixedly connected with a third threaded rod, the third threaded rod penetrates through the second sliding groove, a second sliding block is slidably connected into the second sliding groove, the second sliding block is in threaded connection with the third threaded rod, and a blade fixing groove is fixedly formed in the upper surface of the second sliding block; through the arrangement of the processor, the grinding wheel motor and the grinding wheel, the automatic knife sharpening device is reasonable in structure and easy to assemble, automatic knife sharpening with a knife is achieved, and the