The utility model relates to the field of TPU film
extrusion molding, specifically discloses a TPU film
extrusion head,
extrusion mould is used for TPU film extrusion molding, and the extrusion mould includes the mould of upper and lower symmetry, and the flow channel for the film
raw material in the
molten state is formed between two moulds and passes, side plate is provided with two and is fixed in the left and right sides of extrusion mould respectively, and the side plate is used for blocking the left and right sides opening of flow channel, heat dissipation subassembly is provided with two and is fixed in the upper and lower sides of extrusion mould respectively, and the heat dissipation subassembly includes the casing and heat dissipation structure, and the left and right side edges of casing respectively with the side plate of left and right sides abut, the utility model discloses through multiple heat dissipation fins in heat dissipation structure and the
abutment of mould surface, first air inlet
pipe blows the
airflow to heat dissipation fin, to accelerate the
heat transfer of extrusion head film forming position place, thus accelerates the film cooling solidification, to make the extrusion head guarantee higher extrusion speed while ensuring the film forming quality, thereby improve the film extrusion molding efficiency.