【摘要】 介绍了扣手板塑件模具的设计，重点阐述了2个脱模机构及整体结构。模具采用两板模结构，1模1腔布局，单次开模。浇注系统的直接浇口设置在哈夫滑块分型面上，位于模腔顶部几何中心，保证了充填均衡。2个脱模机构中，哈夫斜滑块抽芯机构（外壁脱模）的参数设计为斜导柱斜角α₁、α₂均为20°,锁紧斜角β₁、β₂均为22°,斜滑块斜向抽芯角度γ均为8°,水平延时抽芯滑块延时距t_y≥1.89 mm。旋转抽芯脱模机构（内壁脱模）的原理为弯销驱动中间滑块及连杆，带动旋转型芯转动脱模；设计参数为塑件旋转角度θ=27°,传动销初始偏转2°,连杆腰型孔虚空抽芯距离l₁=6 mm,弯销驱动滑块行程t₃=38.37 mm,弯销斜角α₃=18°,弯销有效驱动长度L₃=125.4 mm,相应开模距离H_W=119.1 mm。更多还原

【Abstract】 The design of the mold for the refrigerator-buckle-board plastic part was introduced, focusing on two ejection mechanisms and the overall structure. A two-plate mold structure was adopted, featuring a one-cavity layout and a single opening action. The gate of the gating system was a direct gate, and set on the parting surface of the half-slider, it was located at the geometric center of the top of the mold cavity, ensuring balanced filling. Among the two ejection mechanisms: For the half-slider angled core-pulling mechanism（outer wall ejection）: The design parameters were the angle of the angled guide pillar α₁, α₂ was 20°; the locking angle β₁, β₂ was 22°; the core-pulling angle of the angled slide block γ=8°; the horizontal delayed core-pulling slide block delay distance t_y≥1.89 mm. For the rotating core-pulling ejection mechanism（inner wall ejection）: The principle was the angled pin drove the intermediate angled pin slide block and the connecting rod, which ultimately drove the rotating core to rotate for ejection. The design parameters were the part rotation angle θ=27°; the initial deflection of the drive pin=2°; the void core-pulling distance of the waist-shaped hole on the connecting rod l₁=6 mm; the stroke of the slide block driven by the angled pin t₃=38.37 mm; the angle of the angled pin α₃=18°; the effective driving length of the angled pin L₃=125.4 mm; and the corresponding mold opening distance H_W=119.1 mm.更多还原