Tire pattern boundary trimming device and method

The invention discloses a tire pattern boundary finishing device and method, and belongs to the technical field of tire finishing. The tire pattern boundary finishing device comprises bases, a placing table is arranged on the upper sides of the bases, a plurality of bases are arranged in the middle of the upper side of the placing table, a moving groove is formed in one side of the placing table, and a driving mechanism is installed in the moving groove; the tire pattern trimming device comprises a placement table, a driving mechanism is arranged on the placement table, a sleeve is arranged on the side, opposite to the driving mechanism, of the placement table, two removing mechanisms are arranged in the sleeve, each removing mechanism comprises a guide block, and a ram is rotationally mounted on the guide block. And the situation that the inner wall of the pattern is difficult to polish due to the fact that the polishing mechanism is blocked by the stuck stones and the operation of the worker is influenced i