抽芯機(jī)構(gòu)在注塑模具設(shè)計(jì)的應(yīng)用-外文翻譯-其他專業(yè)-閱讀頁
2025-02-08 11:41本頁面
【正文】 designed in the area of A, B and C of the plastic part 1 and in the area of F, G and H of the plastic part 2. The mechanisms are distributed in Figure 2. Distribution of the angle pin corepulling mechanisms Taking the angle pin corepulling mechanism 1 shown in for example, the mechanism is mostly posed ofslide 1, angle pin 4, positioning screw 6, slide wedge 8, wear plate 5 and wear plate 7. The mechanism is shown in figure 3 When the mould is opened, the angle pin fixed in the fixed half of the mould guides the slide in the moving half of the mould. The slide moves outward along the slide way. The inclined plane of the cavity plate which is mated with the slide can ensure wedging the slide when the mould is closed. Considering the mould structure and process parameters, the inclined angle of the angle pin is 13176。. The slide and the ponents which are in touch with the slide are easy to wear because the slide moves frequently. In order to postpone wearing the ponents, the two steps are adopted as follow: The slide is made of 718H and is quenched to 50HRC around. The wear plates are laid on the bottom of the slide and on the back of the slide. The wear plates are madeof GS2510 and are quenched to 60HRC around. The slide way is formed by the slide wedge and the core plate. The slide way is easy to machine and to maintain. 1. slide 2. fixed block 3. locking block 4. angle pin 5. wear plate 6. positioning screw plate 8. slide wedge 9. spring rod Figure 3. Angle pin corepulling mechanism III. DESIGN OF ANGLE EJECTOR ROD COREPULLING MECHANISMS Four angle ejector rod corepulling mechanisms are designed in the area of D and E of the plastic part 1 and in the area of I and J of the plastic part 2. The mechanisms are distributed in figure 4. Distribution of angle ejector rod corepulling mechanisms Taking the angle ejector rod corepulling mechanism 1 shown in figure 4 for example, the mechanism is mostly posed of angle ejector block 1, angle ejector rod 9, angle ejector guide block 4, angle ejector guide block 6, angle pin 5, angle ejector slide 7 and wear plate 8. The mechanism is shown in figure 5 1. angle ejector block 2. straight guide bush 3. headed guide bush 4. angle ejector guide block 5. angle pin 6. angle ejector guide block 7. angle ejector slide 8. wear plate 9. angle ejector rod 10. pin Figure 5. Angle ejector rod corepulling mechanism The angle ejector rod is made of SUJ2 which is premium alloy material and the surface is in nitrogen treatment. The wear resistance of the angle ejector rod is well. By analyzing and puting, the Inclined angle of the angle ejector rod is 20176。21: 656–661. [4] L. S. Turng, M. Peic. Computeraided process and design optimization for injection moulding. IMechE.
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