Thousand kernel weight instrument

The invention discloses a thousand kernel weight instrument comprising a barcode printer, a cover plate, an operation panel, a material box device, an electronic scale, a frame, a switching power supply, an electromagnet device, a support rung, a driving mechanism, a connecting rod, a shaft seat, a vibration cropping device, a photoelectric counting device, a trapezoidal funnel, and a connecting plate. The barcode printer is provided with a screw hole in the lower end, and is fixed to a bottom cover plate of the cover plate. The operation panel is provided with a display screen and control buttons. The material box device is connected with the shaft seat, and the shaft seat is fixed to the frame by bolts. The electronic scale is fixed to the bottom cover plate of the cover plate. The switching power supply is fixed to the bottom cover plate of the cover plate. The electromagnet device is fixed to the connecting plate. With the instrument, seeds can be counted accurately, information containing the number and weight of seeds can be printed in the form of barcode, the barcode can be pasted on the packing bag of seeds, and the information can be wirelessly transmitted to a computer to facilitate subsequent analysis of seeds.