Sole edge trimmer

The utility model discloses a sole edge trimmer which comprises a table body, a vertically-through machining groove is formed in the table body, a shoe mold used for containing a sole is arranged in the machining groove, a transverse plate and an air cylinder are arranged on the upper side of the table body, a blade is arranged on a piston rod extending out of the air cylinder, and the blade is arranged on the piston rod. The blades are connected end to end to form the shape of the outer contour of a shoe sole, a worker only needs to inversely buckle the shoe sole on a shoe mold matched with the shoe sole, the shoe sole trimming machine can automatically press, fix and trim the shoe sole, and the trimming efficiency is high; the polishing belt is arranged on the inner side of the blade used for trimming, the air cylinder can control the blade to move up and down in a reciprocating mode after trimming work is completed, and therefore the polishing belt can polish the position, where trimming is conducted, of a