Vacuum electro-permanent magnet composite sucker lifting appliance

The invention relates to the technical field of steel plate sucking, lifting and carrying, in particular to a vacuum electro-permanent magnet composite sucker lifting appliance which comprises a lifting appliance main beam, a plurality of cross beams consistent in structure are arranged at the bottom of the lifting appliance main beam at intervals, the two ends of each cross beam are connected with suckers through connecting devices, and a plurality of electro-permanent magnets are arranged in the suckers. The top of each suction cup is provided with a ventilation opening and an electrifying opening, each ventilation opening is connected with a ventilation pipe, the top of the lifting appliance main beam is provided with a vacuumizing device and a control mechanism at intervals, the vacuumizing devices are connected with the suction cups through the ventilation pipes, and the vacuumizing devices are used for pumping away air in the suction cups. The control device is connected with the electric permanent magn