Extrusion die with large cantilever protection structure

The utility model discloses an extrusion die with a large cantilever protection structure, which comprises a lower die, a welding chamber and an upper die, the welding chamber is positioned at the top of the lower die, the upper die is positioned above the top of the lower die, and the lower die comprises a positioning rod arranged on the outer side of the lower die. The contact area of the feeding end face of the die and the end face of the extrusion container can be reduced through the small seam allowance, aluminum metal is effectively prevented from flowing out of the end face of the die in the extrusion process, the die is positioned in the axis direction and the diameter direction through the die seam allowance, the aluminum profile is pressed into the flow dividing holes through the pressure mechanism, and the extrusion efficiency is improved. The aluminum profile is decomposed through the feeding sinking bridge, the metal flowing resistance in the extrusion process is reduced through the pressure redu