【摘要】 分析了带弯芯塑料三通管的注射成型工艺,并对成型过程出现的缺陷进行预测。根据三通管的结构特点,设计了一种柔性顺序抽芯机构。该机构采用液压抽芯,能完成弯管处的直线和弧线两个抽芯动作。所设计的模具抽芯机构在实际应用中运动平稳,抽芯、复位准确,成型的塑料件质量符合设计和使用要求。更多还原

【Abstract】 The molding technology of three-way plastic tube with flexural core is analyzed and the molding faults in plastic injecting process are forecasted.A new flexible and sequential core-pulling mechanism is designed according to the characteristic of three-way tube structure.Hydraulic pressure core-pulling is adopted in this mechanism,and it can accomplish linear and arc directional core-pulling motions.The core-pulling mechanism can safely and reliably accomplish the core-pulling motions,and the quality of molded plastic products can meet the requirements of design and operation.更多还原