机械毕业设计-长筒塑料制品注塑模设计.doc

优秀机械毕业设计欢迎下载,学习交流 QQ197216396 专业机械设计解君之忧 1 长筒注塑成型工艺与模具设计摘要本设计的题目是注塑成型工艺与模具设计,从图纸上分析,该零件总体形状为圆盘形。外形结构比较简单,但内,所以成型收缩后必留于型芯上。所以型腔应设计在定模一侧,型芯设计在动模上,由于制件没有侧孔,所以不需侧抽芯, 采用直接抽芯即可。根据塑件的特点,模具型芯在动模部分。开模后,塑件应收缩包紧型芯,而留在动模部分,其推出机构采用推件板与顶管联合推出的推件方式。该种脱模方式是在分型面处从壳体塑件的周边推出。推出力大且均匀。对侧壁脱模阻力较大的薄壁箱体或圆筒制品,推出后外观上不留痕迹。对合导向机构的功能三保证动定模部分能够准确对合,使分别加工在动模和定模上的成型表面在模具闭合后形成形状和尺寸准确的腔体,从而保证塑件形状, 壁厚和尺寸的准确,该模具采用导柱对合导向机构。导柱和型芯一起安装在动模一侧,这样在合模时可起保护作用。相信不久本模具投入市场一定能带来很好的效益服务大众,服务社会。关键词: 塑料模具凸模推件板优秀机械毕业设计欢迎下载,学习交流 QQ197216396 专业机械设计解君之忧 2 Suppers disc shaped crafts and die design molded plastic parts This design topic is the pressed ponents plastic note molds the design, analyzes from the blueprint, ponents overall shape isa rectangle. Has 3 rectangular in the length direction the different shape holes, is easy to take shape. Looked from wall thickness that, the wall thickness most main point is the most narrow view is the wall thickness is even, is advantageous ponents taking shape. According to models a characteristic, the mold core is moving the mold tobe partial. After operates the mold, models tobe supposed to contract male ,but Remains moves the mold tobe partial, it promotes anization to use pushes a board to promote pushes a way. This drawing of patterns way is peripheral models ina minute profile place from the shell to promote. Promotes the strength big also is even. To the sidewall drawing of patterns resistance big thin wall box body or the cylinder product, after promotes seemingly not the scar. The involution anization function three guarantees moves decides the mold tobe partial can the accurate involution, causes to process separately in moves the mold and decides on the mold to take shape the surface closed to form the shape and the size accurate cavity body after the mold, thus guaranteed models a shape, wall thickness and size accurate, this mold uses the guide pillar involution anization. The guide pillar and the core installs together in moves a mold side, like this when g