光伏移动电源电池仓上盖热流道倒装注塑模设计
Design of Inverted Injection Mold for Hot Runner of Upper Cover of Photovoltaic Portable Power Source Battery Compartment
根据光伏移动电源电池仓上盖的结构特点,设计一套单点热流道注塑模具。模具采用动模成型外表面,定模成型内表面的倒推模结构,保证电池仓上盖的外观质量。模具采用三面拨块式侧向抽芯机构,解决抽芯面积大、抽芯力大的脱模难题。模具采用“直通水路+隔水板水路”的温度控制系统,水路布置均匀,模具冷却均衡充分,注射周期缩短约15%,成型塑件尺寸精度达到ISO 20457:2018要求的TG2级标准。
Based on the structural characteristics of the upper cover of photovoltaic portable power source battery compartment, a single-point hot runner injection mold was designed. The mold adopted a reverse ejection structure, where the moving half formed the outer surface and the fixed half formed the inner surface, ensuring the surface quality of the battery compartment cover. A three-sided lifter-type side core-pulling mechanism was employed to solve the demolding challenges caused by the large core-pulling area and high core-pulling force. The mold adopted a temperature control system featuring "direct-flow water channels + water-diverting baffle channels", with evenly distributed water circuits to ensure balanced and thorough cooling of the mold. The injection cycle was shortened by approximately 15%, and the dimensional accuracy of the molded parts reached the TG2 standard required by ISO 20457:2018.
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江西省教育厅科技课题(GJJ2204813)
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