Setting die for high-speed extrusion die for special-shaped plastic materials

The utility model discloses a setting die for a high-speed extrusion die for special-shaped plastic materials. The setting die comprises an upper plate, a lower plate and air grooves. The lower plate is fixedly connected with the upper plate, the air grooves are formed in the peripheries of extrusion flow channels, the directions of the air grooves are identical to the extrusion direction of the die, a plurality of air pipes which penetrate the corresponding plates are respectively arranged on the upper plate and the lower plate, and the directions of the air pipes are perpendicular to the extrusion direction of the die; a plurality of kidney-shaped cooling water tanks and a plurality of cooling water chambers are respectively arranged on the upper plate and the lower plate, the directions of the kidney-shaped cooling water tanks are identical to the extrusion direction of the die, and the directions of the cooling water chambers are perpendicular to the extrusion direction of the die. The setting die has the advantages that the setting die is simple in structure and easy and convenient to machine; water in the cooling water tanks can be guided to flow into the cooling water chambers which are additionally arranged in cooling weak zones of the setting die with the structure, accordingly, the circulation and the pulling speeds of the original air channels can be guaranteed, the cooling uniformity can be improved, the quality of products can be guaranteed, and the production efficiency can be improved.