Side plate assembly of filler

The utility model discloses a filler side plate assembly which comprises a side plate main body, an arc-shaped guide rail assembly, reinforcing square steel, reinforcing ribs, a reinforcing plate and a side plate welding piece, the reinforcing plate is arranged at the top end of the arc-shaped guide rail assembly, and the top end of the arc-shaped guide rail assembly is supported through a plate body of the reinforcing plate; the stress of the arc-shaped face of the arc-shaped guide rail assembly is decomposed to the stress of the whole side plate body, it is guaranteed that permanent deformation or tearing does not happen to the arc-shaped face of the arc-shaped guide rail assembly, a movable filling supporting plate is arranged at the bottom end in the reinforcing plate, and an adjusting supporting block stretches out to be attached to the top end of the arc-shaped face of the arc-shaped guide rail assembly; and attachment to the top end of the arc-shaped guide rail assembly is guaranteed, and then the supp