Upper mold frame for special-shaped silicon steel sheet

The invention provides an upper mold frame for a special-shaped silicon steel sheet. Four groups of transmission shaft holes which are formed at equal intervals are sequentially formed in the top surface of a mold frame body from left to right, the two sets of transmission shaft holes are symmetrically formed in a front-back symmetry mode along the transverse central line of the mold frame body, aplurality of holes A, holes B and holes C which are symmetrically formed are sequentially formed between each group of transmission shaft holes from top to bottom, an array of mounting hole positionswhich are arranged at equal intervals are sequentially arranged between the symmetrically-arranged holes C along the transverse central line of the mold frame body, and a mold cutter is arranged on each set of installation hole positions; and each mold cutter comprises a special-shaped bottom plate, special-shaped cutter openings are formed in the bottom surfaces of the special-shaped bottom plates, two pressing rods are