The present utility model discloses a die for a twin-screw extruder, which is connected to a machine head for melt extrusion and comprises a die body. A dumbbell-shaped pressure boosting groove is arranged on the die body along the melt extrusion direction; a pressure balancing channel and a plurality of discharge holes of the same size are arranged at the bottom of the dumbbell-shaped pressure boosting groove; each discharge hole comprises a feed inlet and a discharge outlet, the feed inlet is connected to the dumbbell-shaped pressure boosting groove, and the discharge outlet is communicated with the outside; the notch of the pressure balancing channel intersects the feed inlets of all discharge holes, and the depth of the pressure balancing channel is 1/4 to 1/3 of the depth of the discharge holes. The dumbbell-shaped pressure boosting groove of the present utility model can balance the melt pressure at both sides and the middle part of the die, avoiding uneven thickness of extruded strands caused by inconsistent hole diameters, making die processing simpler and achieving the purpose more effectively.
Country Code: CN
Application Number: CN202323311263.8
