用于汽车液晶屏外壳的模具结构
By designing a mold structure for automotive LCD screen housings, components such as hydraulic cylinders, screws, sliders, and fans are used to achieve sealing and venting, solving the problem of poor sealing performance in traditional molds and improving the density and appearance quality of injection molded products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU YOUYILI PRECISION MANUFACTURING CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional molds have poor sealing properties during injection molding, leading to defects such as molten plastic overflow, bubbles, and pores, which affect the manufacturing precision and surface quality of automotive LCD screen housings.
A mold structure including a support frame, a lower mold, an upper mold, and an auxiliary venting assembly was designed. Components such as hydraulic cylinders, screws, sliders, sealing plates, and fans are used to achieve material sealing and venting. Gas and dust are removed through vent holes and a dust collection system to ensure the sealing of the mold cavity and the compactness of the material.
It effectively prevents molten material from overflowing, significantly reduces bubbles and voids in injection molded products, improves product density and appearance quality, and enhances user experience.
Smart Images
Figure CN224510273U_ABST
Abstract
Claims
1. A mold structure for an automotive LCD screen housing, comprising a support frame (1), a lower mold (2), and an upper mold (3), characterized in that: An auxiliary exhaust assembly is provided at one end of the support frame (1); The auxiliary exhaust assembly includes a hydraulic cylinder (4) disposed at one end of the support frame (1). A hydraulic screw (5) is connected to the top of the hydraulic cylinder (4). An adjusting slider (6) is connected to the top of the hydraulic screw (5). Guide rods (7) are connected to both ends of the inner side of the support frame (1). A connecting rod (8) is connected to the bottom of the two adjusting sliders (6) away from the hydraulic screw (5). An upper sealing plate (9) is connected to the bottom of the two connecting rods (8). Multiple upper exhaust holes (10) are opened at the outer end of the top of the upper sealing plate (9). Rounded corner positioning blocks (11) are connected to one end of the two adjusting sliders (6) and the support frame (1) through a mounting rod. A lower pressure plate (13) is connected to the end of the two rounded corner positioning blocks (11) away from the adjusting sliders (6) through a mounting rod.
2. The mold structure for an automobile liquid crystal screen housing according to claim 1, wherein: Dust collection boxes (12) are fixedly connected to the top of the two rounded corner positioning blocks (11). Both ends of the two dust collection boxes (12) are connected to conveying pipes (14). The ends of the two conveying pipes (14) away from the dust collection boxes (12) are connected to suction pipes (15). Multiple suction ports (17) are opened on the inner side of the two suction pipes (15). A fan (16) is fixedly added to the end of the two dust collection boxes (12) away from the lower pressure plate (13). The bottom of the lower mold (2) is threadedly fixedly connected to a lower sealing plate (18). Multiple lower exhaust holes (19) are opened on the outer end of the bottom of the lower sealing plate (18).
3. The mold structure for an automobile liquid crystal screen housing according to claim 1, wherein: The hydraulic cylinder (4) is rotatably connected to the hydraulic screw (5), the hydraulic screw (5) is fixedly connected to the adjusting slider (6), and the inner side of the adjusting slider (6) is slidably connected to the outer wall of the guide rod (7).
4. The mold structure for an automobile liquid crystal screen housing according to claim 1, wherein: The adjusting slider (6) is rotatably connected to the two rounded corner positioning blocks (11) via two mounting rods, and the ends of the two upper exhaust holes (10) away from the adjusting slider (6) are rotatably connected to the lower pressure plate (13) via mounting rods.
5. The mold structure for an automobile liquid crystal screen housing according to claim 1, wherein: The ends of the two rounded corner positioning blocks (11) away from the lower pressure plate (13) are rotatably connected to the two connecting rods (8), and the bottoms of the two connecting rods (8) are rotatably connected to the top of the upper sealing plate (9).
6. The mold structure for an automobile liquid crystal screen housing according to claim 2, wherein: The conveying pipe (14) is rotatably connected to the dust collection box (12), and the two suction pipes (15) are both sleeved on one end of the outer wall of the conveying pipe (14). The dust collection box (12), the conveying pipe (14) and the suction pipes (15) are interconnected.
7. The mold structure for an automobile liquid crystal screen housing according to claim 2, wherein: The lower sealing plate (18) and the upper sealing plate (9) are both connected to one end of the lower mold (2) and the upper mold (3) by locking bolts. The top of the lower mold (2) cannot be connected to the bottom of the upper mold (3).