分体空调底盘注塑模具设计

Design of injection mold for split air conditioning chassis

针对分体空调底盘在注塑生产时容易破裂、变形的现象,开发了一款结构简单、运行可靠的注塑模具。根据空调底盘的结构,采用组合滑块结构,解决了出风口以及出风口上部螺柱的脱模问题;采用滑块+水平斜顶的脱模结构,解决了中间导风板孔与两端导风板孔中心轴线不在同一直线上的问题;采用斜抽芯+滑块+油缸的脱模结构,解决了空调底盘排水孔容易产生飞边的问题;在斜导柱滑块上安装阻尼弹簧,可以克服滑块在开、合模时对其他模具零件的冲击;将定模斜顶的斜顶座安装在热流道电器件板上,使两板模具有三板模的特点,实现了定模斜顶的脱模问题;在定模斜顶上安装加强杆,有效避免定模斜顶变形的问题。

Aiming at the problem that the split air conditioning chassis is easy to fracture and deform during injection production,an injection mold with a simple structure and a reliable operation was developed.According to the structure of the air conditioning chassis,the combined slider structure was adopted to solve the demolding problem of the air outlet and the upper stud of the air outlet.The demolding structure of sliding block plus horizontal inclined top was adopted to solve the problem that the central axis of the air guide plate hole in the middle could not stay on the same line with that of the air guide plate hole at both ends.The demolding structure of inclined core pulling plus slider and cylinder was adopted to solve the problem that the drainage hole of chassis was easy to produce the edge.A damping spring was installed on the inclined guide pillar slider.This can effectively overcome the impact of the slider on other mold parts when opening and closing the mold.The inclined top seat of the fixed mold inclined top was installed on the hot runner electrical parts plate.This makes the two plate molds have the characteristics of the three plate molds,and the demolding problem of the fixed mold inclined top is solved.A reinforcing rod was installed on the inclined top of the fixed mold to effectively avoid the deformation of the inclined top of the fixed mold.