Automatic feeding device of concrete mixing plant

The utility model relates to the technical field of concrete mixing plants, in particular to an automatic feeding device of a concrete mixing plant, which comprises a base, a conveying pipe and a discharging hopper, a connecting groove is arranged on the base, a rotating shaft on the inner side of the connecting groove is connected with a connecting block, and the upper end of the connecting block is fixedly connected with the conveying pipe. And a feeding hopper and a discharging pipe are arranged on the conveying pipe. The first air cylinder stretches out and draws back to drive the conveying pipe to rotate along the connecting groove to adjust the height of the discharging end of the conveying pipe, and therefore the conveying height can be conveniently adjusted; the weighing sensor rotates along the discharging pipe so that the discharging hopper can be in the vertical state all the time, and therefore discharging overflow caused by inclination can be avoided during discharging. 本实用新型涉及混凝土搅拌站技术领域，具体为一种混凝土