Steel billet continuous caster self fitting guiding mechanism

The utility model provides a self-adaptive guiding mechanism of a steel billet continuous caster. A pair of guiding vertical rolls 1 is arranged on both sides of a guiding section; a rotating shaft 2 of each of the guiding vertical rolls 1 is fixed on a swinging arm 3; each of the swinging arms 3 is connected with a supporting arm 7 which is installed on a machine frame 9 through a shaft 5; a link stoppers 6 used for limiting the swing angle of the vertical rolls is arranged on the corresponding position of each of the supporting arms 7; a restoring spring 4 is wound on the shaft 5. A supporting roll 10 which is horizontally installed to support a dummy bar and a pressure roll 8 which is horizontally installed to limit the dummy bar to be lift are also arranged on the mechanism; the diameter of each of the guiding vertical rolls is 80 mm to 150 mm; the rotating radius of each of the swinging arms is 20 mm to 120 mm; the center distance between rotating shafts of the swinging arms is 200 mm to 500 mm; the rotating angle of each of the swinging arms is 80 DEG to 90 DEG.