线轮(线盘)模具大学本科设计.docVIP

毕业设计（论文）中文摘要 线轮塑料模具设计 摘 要：本设计进行了线轮模具的设计。在设计之前对塑件结构进行工艺性分析。根据塑件特征选择注塑机并对其进行校核。通过考虑成型的经济性、可行性等因素，确定模具的型腔数。根据塑件特点确定模具的浇注系统和分型面位置。该模具采用环形浇口、结构简单、易于制造。通过对塑件结构分析，计算成型零件尺寸，设计合理的成型零件。通过合理布置温度控制系统，调节模具工作温度，提高塑件的成型质量。利用推杆将塑件从模具中推出。结合塑件特点和模具其他零部件的特征选择模架，并对其进行校核。该模具利用直导柱和斜导柱导向，这样的结构设计可确保模具工作运行可靠。 关键词：线轮；注塑；模具；设计；斜导柱；滑块 毕业设计（论文）外文摘要 Design of Injection Mould For The Bobbin Abstract: This is a design of injection mould for the bobbin. Analysis of the process before in the design of the structure of plastic parts. Then choose injection molding machine according to the plastic parts feature and check its parameters. By considering the production of economic, feasibility and other factors, determine the number of mold cavity. According to the plastic parts feature, determine the gating system and the parting surface. This injection mould uses annular casting gate, simple structure, so the injection mould is easy to manufacture. By analyzing of structure of the plastic parts, calculate the size of the molded part, design reasonable molded parts. Through the rational layout of the temperature control system, adjust the operating temperature of the mold, Improve the quality of plastic parts molding. Remove the plastic parts from the mold by using the putter Combined with plastic parts feature and other parts of the mold to choose mold bracket, And check its parameters. The mold straight guide pin and Bevel Pillar. This structure is designed to ensure reliable operation of the mold. Keywords: Bobbin；injection；mould；design；slanted guide；slide 1 绪论 模具工业在我国国民经济中占有重要地位。国家“十二五”发展规划2 塑件工艺性分析 2.1 塑件材料分析 ABS是丙烯腈、丁二烯、苯乙烯三种单体的共聚物，原料易得，价格便宜，是目前应用最广、产量最大的工程塑料之一。ABS无毒、无味，为呈微白色或黄色不透明粒料，成形的塑件有较好的光泽，密度为1.03～1.07g/cm3。收缩率为0.3%～0.8%。ABS塑化效率高，比热容低，凝固也快，所以成形周期短；ABS的表观黏度对剪切速率的依赖性也很强，所以模具设计中大都采用点浇口形式。 2.2 塑件工件分析 该塑件是一个塑料线轮，如图2-1所示，塑件壁厚属薄壁塑件，生产批量大，使用ABS材料，成型工艺好，可以注射成型。 图2-1 线轮二维零件图 如图2-2所示为该塑件线轮的三维图。 图2-2 线轮的三维图 材料为ABS塑料，须考虑圆周方向侧向分型；塑件各部位壁厚均为3mm，属薄壁制品；为减轻重量及增加强度，两端外侧各有环形加强筋2条、分布均匀的轮辐式加强筋24条；右端内侧有环