Automatic sampling device applied to mine limestone quality control

The utility model discloses an automatic sampling device applied to mine limestone quality control, which comprises a collecting box, a conveying belt is arranged on one side of the sampling box, a material guide port is arranged above the sampling box and is close to the conveying belt, the bottom of the collecting box is communicated with a crushing box, a screening net is arranged in the crushing box, and the screening net is arranged on the bottom of the collecting box. A conveying plate is arranged at the bottom of the crushing box, the other end of the conveying plate is communicated with the divider, a discharge port is formed in the outer side wall of the bottom of the divider, and a sample collector is arranged below the discharge port; according to the device, the characteristic that limestone enters a round pile belt is high can be utilized, a feeder does not need to be adopted, the limestone directly enters the crusher after being sampled, the crushed sample enters the divider through a pipeline t