Sample preparation mold for annular test of rubber compound

The utility model provides a sample preparation mold for a rubber compound annular test. The sample preparation mold comprises an upper cover plate, a middle annular clamping plate and a lower cover plate, the length and width of the upper cover plate and the lower cover plate are smaller than or equal to the size of the working surface of the press vulcanizer, and the surfaces are flat and smooth; the middle annular clamping plates are arranged between the upper cover plate and the lower cover plate and are sequentially arranged according to the area of the upper cover plate and the area of the lower cover plate, and the annular sample manufacturing efficiency is greatly improved. 本实用新型提供了一种用于橡胶混炼胶环形试验测试的制样模具，包括：上盖板、中间环形夹板和下盖板；所述上盖板和下盖板呈矩形，长宽均小于或等于平板硫化机工作面尺寸，表面平整光滑；所述中间环形夹板设置在上盖板和下盖板之间，根据上下盖板的面积依次排列，大大提高了制作环形样品的效率。