Improved blueberry pricking machine

The utility model discloses an improved blueberry pricking machine in the field of blueberry pricking. Four groups of vertical plates, bearings are embedded in the side surfaces of the vertical plates; connecting rod rotationally connected with bearing, driving wheels are fixedly connected to the end parts of the connecting rods; conveyor belts are arranged on the surfaces of the driving wheels. Amagnetic column is fixedly connected to the surface center of the conveyor belt; a collecting box is arranged at the tail end of the conveying belt in the advancing direction; a blueberry placing boxis connected above the magnetic column; a through hole is formed in the center of the bottom end of the blueberry placing box; magnetic materials matched with the magnetic columns in a magnetic adsorption manner are fully paved on the inner walls of the through holes; a bracket is arranged between the vertical plates; bracket positioned above middle part of conveying belt, a reciprocating cylinder is fixedly connected to