F型果杯轮设计说明书.docxVIP

JIANGXI AGRICULTURAL UNIVERSITY 本 科 毕 业 论 文（设 计） 题目： F型果杯轮轴 学 院： 工学院 姓 名： 学 号： 专 业： 农业机械化及其自动化 年 级： 农机101 指导教师： 职 称： 教授 二0一四 年 五 月 摘要 我国是世界第一大水果和蔬菜生产大国，但采后经商品化处理后上市的数量仅占总产量的 10%左右，远远低于发达国家 70%以上的水平，由此导致经济效益低下，造成于此的根本原因是采后处理装备落后，尤其是缺乏高端分选设备，而高端设备技术长期被国外发达国家所掌控，国内用户由于价格问题难以大规模采购和使用。为此，研制具有自主知识产权、性价比合理、维护便捷的果蔬分选设备，不仅是产业发展的迫切需要，同时对于打破国外技术垄断，具有重要的战略意义。本次毕业设计是对果蔬分选机中果杯轮进行分析，设计了一副一模四腔的果杯轮塑料模具，并利用PRO/E中的EMX(模具专家系统扩展)对设计完成的塑料模具进行了开模分析。详细的叙述了模具成型零件包括型腔、型芯等设计，重要零件的工艺参数的选择与计算，浇注系统、冷却系统以及其它结构的设计过程，模架的选择原则。 关键词： 注塑模具；PRO/E；EMX Abstract China is the worlds largest fruit and vegetable production country, but after commercialized treatment after mining listed the number of accounts for only about 10% of the total output, far less than developed countries more than 70% of all levels, the resulting economic benefit is low, the root cause of this is post-processing equipment backward, especially lack of high-end separation equipment, and high-end equipment technology mastered by the foreign developed countries for a long time, domestic users due to price problems difficult to mass purchase and use. To this end, developed with independent intellectual property rights, reasonable price, convenient fruit sorting equipment maintenance, not only is the urgent need of industrial development, at the same time to break the monopoly of foreign technology, has important strategic significance. This graduation design is to the fruit and vegetable fruit cup wheel is analyzed in the separator, designed a pair of one module and four cavities fruit cup wheel plastic mold, and by using PRO/E EMX (extension) mould expert system on the design of plastic mould cavity analysis. Detailed describes the molding parts including the cavity and core design, important parts of the choice of process parameters and calculation, the desi