Stop-free plate-changing printing device

The utility model provides a stop-free plate changing printing device, which relates to the field of printing devices, and comprises a device frame, a cleaning assembly, a printing assembly and an electric push rod, a printing ink box is arranged at the upper end of the device frame, the lower end of the printing ink box is connected with a printer through a pipeline, and meanwhile, the upper end of the printer is connected with a hydraulic rod; the cleaning assemblies are arranged on the inner walls of the two sides of the device frame, each cleaning assembly comprises a liquid medicine box, the outer wall of each liquid medicine box is connected with a high-pressure pump, meanwhile, the output end of each high-pressure pump is connected with a spraying head through a liquid conveying pipe, a base is arranged on the inner side of the device frame, a printing base is arranged at the upper end of the base, and the printing assembly is slidably connected to the upper end of the printing base. The printing plate