Printing mechanism of sample container

The utility model provides a printing mechanism of a sample container, which belongs to the technical field of medical instruments and comprises a material receiving end, a material receiving end, a material receiving end, a material receiving end and a material receiving end, the material receiving end is provided with a material receiving frame, the material receiving frame is connected with a fixed material receiving plate and a movable material receiving plate, and the fixed material receiving plate and the movable material receiving plate are spliced and separated to form a material receiving groove and a material falling channel which correspond to each other; the discharging end is provided with a rotating assembly, receives the sample containers falling from the discharging channel, drives the sample containers to rotate, and aligns unprinted blank areas on the sample containers to the printing assembly. Through abutting cooperation between a blocking arm and an ejector rod, a sample container in a ma