Uncapping device of immunoaffinity column

The utility model relates to a cover removing device for an immunoaffinity column, and the cover removing device for the immunoaffinity column comprises a fixed plate, a clamping mechanism and a driving mechanism, the clamping mechanism comprises a bearing plate, a clamp and a power piece; the driving mechanism is arranged on the fixing plate and used for driving the bearing plate to reciprocate in the vertical direction. The clamp and the power piece are located on the bearing plate, the clamp is connected to the power piece, and the power piece is used for driving the clamp to do reciprocating motion in the horizontal direction; the clamp is composed of a vertical plate and two clamping plates horizontally and fixedly arranged on the vertical plate. And the distance between the two clamping plates is smaller than the diameter of an immunoaffinity column cover plug and larger than the diameter of an immunoaffinity column nozzle. The cover removing device can replace manual cover removing, sample pollution is