Two-plate injection molding machine template based on topological optimization design
The two-platen injection molding machine template designed through topological optimization solves the problems of heavy template weight and stress concentration, achieves lightweight and improved dynamic stiffness, and reduces energy consumption and costs.
Patent Information
- Application Number
- CN202510840186.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2025-09-16
AI Technical Summary
The traditional two-platen injection molding machine template design has problems such as heavy weight, material redundancy, high energy consumption, stress concentration and unstable mold clamping accuracy, making it difficult to achieve a balance between lightweight and dynamic stiffness.
A two-plate injection molding machine template based on topological optimization design is adopted. By designing butterfly-shaped connecting blocks, hollow parts and reinforcing rib structures inside the template, the material distribution is optimized in combination with the variable density method, the redundant parts are reduced, the template thickness is adjusted, and the stress distribution is optimized.
Significantly reduce the weight of the template by 10%-18%, increase the bending stiffness by 15%-20%, and the torsional stiffness by 10%-15%, avoid stress concentration, reduce manufacturing and production costs, and improve mold closing accuracy.
Smart Images
Figure CN120645381A_ABST
Abstract
Claims
1. A two-platen injection molding machine template based on topology optimization design, characterized by: It includes a front plate (1), a rear plate (2) and connecting blocks, and the connecting blocks are fixedly connected between the front plate (1) and the rear plate (2); the connecting blocks include a central block (3) located in the middle and four extension blocks (4) connected to the sides of the central block (3), and the four extension blocks (4) extend towards the four corners of the template respectively; A first cavity (5) is arranged in the middle of the extension block (4), a second cavity (6) is formed between adjacent extension blocks (4), and a reinforcing rib (10) is fixedly connected between adjacent extension blocks (4); A central hole (7) is arranged in the middle of the central block (3), a pull rod hole (8) is arranged at the corner of the template, and the pull rod hole (8) passes through the outer end of the extension block (4).
2. The two-platen injection molding machine template based on topology optimization design according to claim 1, characterized in that: The part of the inner side of the pull rod hole (8) between the front plate (1) and the rear plate (2) is connected to the first cavity (5) through a hollow part (9).
3. The two-platen injection molding machine template based on topology optimization design according to claim 2, characterized in that: The reinforcing rib (10) is arranged parallel to the side of the template corresponding to the second cavity (6) where it is located.
4. The two-platen injection molding machine template based on topology optimization design according to claim 1, characterized in that: The reinforcing rib (10) is fixedly connected to the panel (1); the reinforcing rib (10) is located at the middle position of the second cavity (6).
5. The two-platen injection molding machine template based on topology optimization design according to claim 1, characterized in that: The middle of the extension block (4) is wide and the two ends are narrow, and its two side surfaces are arc-shaped surfaces; the first cavity (5) and the hollow part (9) form an oval cavity.
6. The two-platen injection molding machine template based on topology optimization design according to claim 5, characterized in that: The outer end of the extension block (4) is a right-angle surface (12) flush with the front plate (1) and the rear plate (2); there is a spacing between the hollow part (9) and the front plate (1) and the rear plate (2).
7. The two-platen injection molding machine template based on topology optimization design according to any one of claims 1 to 6, characterized in that: For the MX2300T template, the template thickness is 800 - 900 mm, the thickness of the front plate (1) and the rear plate (2) is 100 - 120 mm; the spacing between the inner ends of adjacent first cavities (5) on the left and right is 600 - 700 mm; the spacing between the inner ends of adjacent first cavities (5) above and below is 590 - 690 mm; the width of the reinforcing rib (10) at the left and right first cavities (5) is 180 - 220 mm; the width of the reinforcing rib (10) at the upper and lower first cavities (5) is 200 - 240 mm.
8. The two-platen injection molding machine template based on topology optimization design according to claim 7, characterized in that: When the template thickness is 850 mm, the thickness of the front plate (1) and the rear plate (2) is 110 mm; the spacing between the inner ends of adjacent first cavities (5) on the left and right is 650 mm; the spacing between the inner ends of adjacent first cavities (5) above and below is 640 mm; the width of the reinforcing rib (10) at the left and right first cavities (5) is 200 mm; the width of the reinforcing rib (10) at the upper and lower first cavities (5) is 220 mm.
9. The two-platen injection molding machine template based on topology optimization design according to claim 1, characterized in that: The template uses the variable density method to make the material gradient distribution.
10. The two-platen injection molding machine template based on topology optimization design according to claim 1, characterized in that: Bottom feet (11) are fixedly arranged on the left and right sides of the bottom of the template, the bottom feet (11) are in a C shape, and the opening faces inwards.