Rail type concrete distributing device rectangle and distributing method thereof

The invention discloses a rail type concrete distributing device rectangle and a distributing method thereof. The device is used for performing concrete filling during box beam prefabrication, and comprises two box beam molding boards which are separately arranged below the two sides of a box beam, a material distributor, at last one lifter arranged on the end part of the box beam and a movable hopper machine used for loading concrete; leveler rails are arranged in the length direction of the box beam molding boards; the material distributor comprises a material distributor truss which is arranged in the width direction of the box beam and a truss drive motor; the material distributor truss moves along the leveler rails through the truss drive motor; transverse bridge direction rails are arranged on the top of the material distributor truss; the movable hopper machine is lifted by the lifters; and the movable hopper machine moves between the tops of the lifters and the bridge direction rails. The rail type co