Lifting device, vertical curing oven and baking system

The utility model relates to the technical field of PCB processing. The lifting device, the vertical curing oven and the baking system comprise at least one material frame. The feeding device comprises a base frame, a first power part, a first lead screw and a second lead screw, wherein the first lead screw and the second lead screw are rotationally arranged on the base frame at intervals, each material frame is movably installed on the base frame and is in threaded connection with the first lead screw and the second lead screw, and the first power part is installed on the base frame and drives the first lead screw and the second lead screw to rotate at the same time to drive the material frames to move up and down. The first lead screw and the second lead screw are in threaded connectionwith the two ends of the material frame correspondingly, when the first power part drives the first lead screw and the second lead screw to rotate at the same time, the material frame moves up and down along the first lead sc