Pouring head for PU materials

The invention discloses a pouring head for PU materials. The pouring head comprises a main shaft, a bearing base, a connecting disc, a mixing chamber, a sleeve and a material nozzle. The inner wall of the side wall of the sleeve which is in contact with raw pouring materials and the inner layer of the material nozzle are formed by PP materials or PE materials, or a PP coating or a PE coating is arranged on the side surface, toward a stirring space, of the inner wall of the side wall of the sleeve which is in contact with raw pouring materials and the inner layer of the material nozzle. A pouring device can rub for a longer time. Under the condition that novel materials of the PU (polyurethane) raw materials are used, the pouring head with a PP or PE material can also normally run after materials are poured 600 times, and the running efficiency is increased by three times or above. 种用于PU材料的浇注头，包括主轴、轴承座、连接盘、混合室、外套和料嘴，与浇注原料接触的外套侧壁的内壁和料嘴的内层由PP或PE材料构成，或在它们朝向搅拌空间的侧表面上具有PP或PE涂层。本发明的浇注设备能够更长时间的连续运行。在使用PU(聚氨酯)原料新料的情况下