A scientific introduction was made to the mold design of a certain brand of air conditioning indoor unit bottom shell using HIPS molding.The mold structure used a three plate mold structure,and 7 gates were used to pour the mold cavity.The mold manufacturing cost could be reduced by about 20％.In the mold,for the demolding of plastic parts,the method of zone based demolding design was adopted.Three fixed mold core pulling mechanisms,five moving mold slider mechanisms,four lifter mechanisms,and three types of ejection components were designed to achieve automatic demolding of plastic parts.In the design of the mechanism,the use of a moving mold slider to delay the drive of a fixed mold angle slider for first core extraction,and the use of mold opening power to drive the fixed mold angle slider through a hook block for first core extraction maximize the efficiency of utilizing mold space,reducing mold manufacturing costs by about 15％.The mechanism had good innovative design reference function.The design measures such as double angle rods for ejecting large lifter heads,using guide rails for guiding the angle rods,and using moving mold sliders to assist in evenly separating plastic parts from the fixed mold also had well solved the hard problem of consciousness in the design of large-area ejecting lifter structure.
关键词
室内空调/底壳/HIPS/注射成型/模具设计/机构创新/结构设计
Key words
indoor air conditioning/bottom shell/HIPS/injection molding/mold design/institutional innovation/structural design
维普
万方数据