Independent Development of Large Slush Molding Machine with Wind Circulation Manner
According to the situation of the slush molding machine being heavily dependent on import,a large slush molding machine with wind circulaion manner was self-developed,in which molds were heated or cooled by being exposed to cyclic air. The structures of key components such as preheating furnace,material rotated device,plasticizing furnace and cooling chamber were designed. Both digital-control burner and profile-modeling design of air ducts in the preheating furnace were adopted to homogenize heat treatment of large molds. The material rotated device employed a rotary pneumatic connector which had a big inlet and many small outlets to improve the beating force of the air cylinder. In the plasticizing furnace,four air flues and seventy-two air ducts were used to heat the mold uniformly. In the cooling chamber,the collecting device of condensate water was installed under the condenser to avoid thin-film type bubble defects of B surfaces of slush skins deviated from the molds. In all,the slush molding machine can make ten sets of molds work in a production line and the production time is 90 seconds per sheet,which can satisfy the production quality requirements of the instrument panel of middle and advanced cars successfully.
instrument panelslush molding machineindependent development