The invention discloses a core-pulling cooling device for a die-
casting die. The core-pulling cooling device for the die-
casting die aims at overcoming the defects that an existing die-
casting cooling device is complex in structure and high in cost, the
cooling effect of the core-pulling position is not good, and core pulling operation is not convenient. The core-pulling cooling device comprises a
piston cylinder, a core and a
cooling pipe, wherein a cooling cavity is formed in the core along the axis of the core, a quick-releasing transition block is connected between a telescopic rod of the
piston cylinder and the core, and the
cooling pipe is movably connected to the
piston cylinder. The
cooling pipe comprises an inner
pipe and an outer
pipe, a liquid return gap is formed between the outer wall of the inner
pipe and the inner wall of the outer pipe, and the inner pipe stretches out of the front end of the outer pipe; the part, extending out of the front end of the outer pipe, of the inner pipe is arranged in the cooling cavity, the front end of the inner pipe is arranged close to the bottom end of the cooling cavity, and the front end of the outer pipe is provided with a connecting part. The open end, connected with the quick-releasing transition block, of the core is tightly connected with the connecting part, the rear end of the cooling pipe is connected with a connector, and the connector is provided with a liquid inlet connector body communicating with the inner pipe and a liquid return connector body communicating with a liquid outlet gap.