Die-casting die assembly for preventing plastic part from falling off

The utility model relates to the technical field of die-casting dies, and discloses a die-casting die assembly for preventing a plastic part from falling off, which comprises a die-casting plate arranged on the front side of a die base plate, the outer wall of the die-casting plate is provided with a plurality of inverted buckling grooves distributed at equal intervals. And each back-off groove is divided into three parts which are distributed in the shape of three independent grooves. Due to the fact that the outer surfaces of the die-casting assemblies of the die-casting die in the prior art are flush, plastic parts can fall off after being subjected to die casting, and product quality is affected. According to the technical scheme, the inverted buckling grooves are formed in the outer wall of the die-casting plate, the probability that a die-casting part is separated from a plastic part can be reduced, the structure is simple, the cost is low, the inverted buckling grooves in the die-casting plate can be p