Quick film changing mechanism of flat pasting machine

The utility model provides a quick film changing mechanism of a flat sticking machine, which belongs to the technical field of flat sticking machines and comprises a frame, a plurality of film rollers arranged on the frame, a pushing mechanism for pushing the film rollers to move and a separating component for separating the film rollers. A receiving frame capable of sliding up and down is arranged on one side of the rack, a first elastic piece for pushing the receiving frame upwards is arranged on the rack, and the pushing mechanism can push the film roller to the receiving frame; the receiving frame moves upwards through the first elastic piece, so that the thin film pipe is pushed to the receiving frame, the receiving frame falls downwards through gravity, finally, the pushing mechanism moves back, and meanwhile, the combining frame is limited, and according to the device, the thin film roller only needs to be placed on the machine frame in advance, automatic feeding can be conducted on the thin film rolle