Reduce extrusion device of interior product sbrinkage blowhole of die casting die

The utility model relates to a reduce extrusion device of interior product sbrinkage blowhole of die casting die, including extrusion hydro -cylinder (1) and extrusion ejector pin (3), extrusion hydro -cylinder (1) install in die casting die's upper die base, the ejector pin of extrusion hydro -cylinder (1) down vertical, the lower extreme of ejector pin of extrusion hydro -cylinder (1) pass through shaft coupling (2) with the upper end of extrusion ejector pin (3) and link to each other, extrusion ejector pin (3) and shaft coupling (2) along with the ejector pin motion and the motion of extrusion hydro -cylinder (1), extrusion ejector pin (3) lower extreme of telling pushes up in the middle part of penetrating die cavity and product (4) upper end mutually. The utility model has the characteristics of simple structure, simple to operate, through extrudeing shaping but the product that does not solidify for the sbrinkage blowhole of product reduces, improves greatly the quality of product etc.