Multi-row continuous quenching device for arc-shaped cutting boards

The utility model belongs to the technical field of steel heat treatment, and particularly relates to a multi-row continuous quenching device for an arc-shaped cutting board, which adopts a continuous rolling type quenching mode, the cutting board is continuously quenched during movement, and quenching soft points are eliminated. The curved-surface roller way is arranged, the structure of a traditional straight-surface roller way is improved, accurate positioning and constraint quenching of the arc-shaped cutting board are effectively achieved, the heat exchange efficiency is improved, self-alignment of the arc-shaped cutting board in the roller way is achieved through the height difference of the curve of the outer surface of the curved-surface roller way, and deformation of a quenching plate is effectively improved. The curved surface roller way comprises an annular curved surface roller way and a continuous curved surface roller way, and the annular drainage groove is formed in the annular curved surface r