Adjustment-free double-pipe extrusion die

The utility model relates to the technical field of medical catheter extrusion, in particular to a debugging-free double-tube extrusion die. The utility model provides a debugging-free double-pipe extrusion die which comprises a connecting piece, a gland, a runner heating body and a mouth die heating body, two through holes with threaded holes in the upper portions are formed in the runner heating body, and a first adjusting bolt and a second adjusting bolt which are used for adjusting fluid flow are installed in the through holes; one end of the connecting piece is in threaded connection with the extruder host, and the other end is in threaded connection with one side of the runner heating body; and the other side of the runner heating body is vertically connected with the mouth mold heating body through a bolt. Each part of the die adopts a modular design, and is easy to disassemble, replace and clean; and when the mouth molds with other sizes are replaced, the mouth molds can be rapidly replaced without cl