Protective lining plate for metal casting shot blasting machine

The utility model relates to the technical field of shot blasting machines, and particularly discloses a protective lining plate for a metal casting shot blasting machine, which comprises a panel I, a through hole is formed in the panel I, and a plurality of bosses are uniformly arranged on the panel I; the boss is semicircular on the whole; and one edge of the panel is in arc transition. And the protective lining plate is fixed on the inner wall of the shot blasting machine by a bolt through the through hole. Compared with the prior art, due to the arrangement of the integrally semicircular bosses and arc transition, shot blasting can be scattered out, the same positions of other protective lining plates are prevented from being impacted by the shot blasting again, the thickness and the surface area of the protective lining plates are increased through the bosses, and the service life of the protective lining plates is prolonged. 本实用新型涉及抛丸机技术领域，具体公开了一种金属铸件抛丸机用防护衬板，包括面板一，所述面板一上设置通孔，所述面板一上均匀设置若干凸台；所述凸台整体呈半圆形；所