Calibration weight picking and placing device, metering equipment and mixing station

The utility model provides a scale calibration weight pick-and-place device, metering equipment and a mixing plant. The calibration weight pick-and-place device comprises a lifting mechanism and a suspension connecting piece. The lifting mechanism is used for being installed on a bearing frame of a metering hopper, and the lifting mechanism is used for being connected with a weight so as to drive the weight to move between a first position and a second position higher than the first position. The hanging connecting piece is used for being connected with the measuring hopper and the weight, when the weight is located at the first position, the weight is hung on the measuring hopper through the hanging connecting piece, and when the weight is located at the second position, the weight is hung on the lifting mechanism. According to the utility model, heavy weights do not need to be manually carried back and forth, the workload of taking and placing the weights during scale calibration can be reduced, the falling