香水瓶盖内螺纹自动脱模注塑模设计

Design of Injection Mold with Internal Thread Automatic Demoulding for Perfume Bottle Cap

根据香水瓶盖的结构特点,设计了自动脱螺纹注塑模,重点分析了成型零件、冷却系统、脱模系统和定距分型结构。通过采用"液压油缸+齿条+齿轮"的传动机构和多步骤顺序脱模机构,达到了内螺纹自动脱模的目的。实践证明,模具结构先进合理,塑料件达到各项技术要求。

According to the structural characteristics of the perfume bottle cap, a pair of automatic unscrewing injection mold was designed. The molded parts, the cooling system, the ejection system and the given-distance parting mechanism were mainly analyzed. By using ＂hydraulic cylinder＋rack＋gear＂ transmission mechanism and multi-step sequential liquid ejection mechanism, the purposes of internal thread automatic demoulding is reached. Practice prove that the mold structure is advanced and reasonable, plastic parts reaches the technical requirements.