Seed recognition device for precise crop seeding equipment

The invention relates to a seed recognition device for precise crop sowing equipment, and discloses a seed recognition device capable of recognizing the category and size of seeds sucked into a seed discharging groove and controlling a rotating motor to drive an adjusting sliding plate to slide out of an adjusting sliding groove to adjust the size of the seed discharging groove in real time according to the category and size of the seeds. And small-particle-size seeds are prevented from being sucked into the negative-pressure cavity. The device is characterized in that the fixing assembly is composed of a fixing disc, an annular fixing barrel, a limiting disc and limiting through grooves, one end of the annular fixing barrel is connected with the fixing disc, the other end of the annular fixing barrel is connected with the limiting disc, the limiting through grooves are formed in the limiting disc at equal intervals, and a plurality of controllers are arranged in the annular fixing barrel at equal intervals i