Sealing device for can processing

The invention relates to the technical field of can processing, and discloses a can processing sealing device which comprises a first conveyor, a second conveyor, a third conveyor and a fourth conveyor, a feeding mechanism is mounted between the first conveyor and the second conveyor, a rack is mounted at the rear ends of the first conveyor and the second conveyor, and an adjusting mechanism is mounted on the rack. Cans are conveyed through a first conveyor, then a first driving motor drives a feeding disc to rotate to be matched with a feeding notch to convey the cans to the inner side of a sealing mechanism, and then a fourth driving motor drives a lead screw to rotate to adjust the height of a pressing plate, so that can covers of the cans with different heights are pressed conveniently; and meanwhile, a push rod motor pushes a pressing wheel to be attached to the outer sides of the cans with different widths, meanwhile, a third driving motor is started to be matched with a driving gear to be meshed with a