The invention discloses a rotary forming device for a concrete prefabricated part. The rotary forming device comprises a base, a vertical seat, a
servo motor, a gear, a rotating support, a rotary table, prefabricating moulds, a right vertical column, a first bracket, a first air cylinder, a pre-pressing and vibration mechanism, a support, a material bin, a left vertical column, a top plate, a second air cylinder and a paving mechanism. The
servo motor works, concrete is put into the prefabricating moulds when the prefabricating moulds rotate to the position under the material bin, and the prefabricating moulds move to the position under the paving mechanism; the second air cylinder works, material pushing heads are inserted into the prefabricating moulds, and the paving mechanism drives the material pushing heads to make
reciprocating motion to flatten the concrete; and then the prefabricating moulds move to the lower end of the pre-pressing and vibration mechanism, and the pre-pressing and vibration mechanism works to pre-press and vibrate the concrete. The rotary forming device is simple in structure; the concrete can be flattened, pre-pressed and vibrated automatically, so thatthe prefabricating moulds are filled with the concrete rapidly and fully; and the concrete is combined rapidly because of being pressed so as to exhaust air, thus, the comprehensive quality of the concrete prefabricated part is effectively improved, the
automation degree is high, and the production efficiency is high.