Automatic overturning unloading assembly, automatic overturning unloading mechanism and automatic unloading device

The utility model discloses an automatic turnover unloading component, an automatic turnover unloading mechanism and an automatic unloading device, which comprise a fixed seat connected to the front end of an unloading platform, a driving rolling shaft connected to the fixed seat and a front rolling shaft connected in parallel to the front of the driving rolling shaft, a front unloading roller is fixedly mounted on the front rolling shaft, and a rear unloading roller is fixedly mounted on the rear rolling shaft. An auxiliary unloading roller is fixedly installed on the driving rolling shaft, and the corresponding ends of the driving rolling shaft and the front rolling shaft are fixedly connected through a swing arm. A swing driving wheel used for being in transmission connection with a first driving mechanism is installed on a mandrel of the driving rolling shaft, and the front unloading roller and the auxiliary unloading roller are arranged in a synchronous rotation mode through a winding piece. Friction pro