Spraying tool for core piece

The utility model relates to the field of core part spraying, in particular to a core part spraying tool which comprises a placing plate and a cover plate covering the placing plate, a plurality of placing grooves are formed in the placing plate, core parts are placed in the placing grooves, a spraying channel is formed in the cover plate, a plurality of limiting units are fixed in the spraying channel, and the limiting units are arranged on the placing plate. The two ends of each limiting unit are fixedly connected with the inner side wall of the spraying channel, the multiple limiting units are arranged at intervals, each limiting unit comprises multiple limiting parts, the multiple limiting parts correspond to the multiple containing grooves one to one, the limiting parts abut against the center of the top face of the core piece, and the multiple limiting parts are fixedly connected with the cover plate; and the multiple limiting parts are taken and placed at the same time through the cover plate, so that