Food detection sample grinding device

The invention discloses a food detection sample grinding device which comprises a mounting cylinder, a grinding cylinder is fixedly connected to the top of the mounting cylinder, a mounting cover is connected to the top of the grinding cylinder through threads, a sealing cover is connected to the top of the mounting cover through threads, and a grinding motor is mounted in the mounting cylinder through screws. A grinding motor is arranged in the grinding cylinder, a main grinding cutter and an auxiliary grinding cutter which have the grinding function are arranged at the bottom end in the grinding cylinder, and the grinding motor and the main grinding cutter are connected through a spring telescopic column and a rotating column which have the adjusting function. The main grinding cutter can grind samples at different positions, the grinding range is expanded, the sample grinding efficiency is improved, the main grinding cutter moves up and down and rotates at a high height, rapid multi-position stirring of th