Die structure with butt joint shaft forming cavity
By designing a mold structure with a mating shaft forming cavity, the problem of gas not being able to be discharged from the die-casting mold was solved, achieving high-quality forming of the mating cam and improving production efficiency.
Patent Information
- Application Number
- CN202520559886.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Conventional die-casting molds cannot effectively expel gas, resulting in reduced quality of the rear suspension bracket docking cam and the presence of gas shrinkage cavities.
The design incorporates a mold structure with a mating shaft forming cavity, including an upper mold base and a lower mold base stacked on top of each other. It features a core-pulling installation notch, a protruding forming cavity, and an initial venting slag pack to ensure gas discharge. Through the cooperation of the left and right core-pulling structures, the forming and quality improvement of the mating convex shaft are achieved.
It effectively avoids air entrapment, improves the quality of mating cams, reduces production costs, and increases production efficiency.
Smart Images
Figure CN223932570U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of die casting mold structure technology, and in particular to a mold structure with a mating shaft forming cavity. Background Technology
[0002] In production such as Figure 7 When installing the rear suspension bracket as shown, it is necessary to ensure the quality of the mating cam of the rear suspension bracket. The mating cam is mainly used as a mating part, and there should be no gas shrinkage cavities inside it. However, conventional die-casting molds cannot completely expel the gas in this area, resulting in a reduction in the quality of the mating cam. In order to solve the above technical problems, it is necessary to modify the die-casting mold. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a mold structure with a mating shaft forming cavity, which has the characteristics of improving the overall structure, ensuring product quality, and improving product production efficiency.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a mold structure with a mating shaft forming cavity is provided, including an upper mold base, a lower mold base, an upper mold core, and a lower mold core. The upper mold base and the lower mold base are arranged in a stacked manner, and the upper mold core and the lower mold core are installed between them in a stacked manner. A mold cavity structure is formed between the upper mold core and the lower mold core. A left core-pulling structure and a right core-pulling structure are respectively installed on the left and right parts between the upper mold base and the lower mold base. The left and right parts of the lower mold core are provided with core-pulling installation notches. A protruding forming cavity is provided in the middle of the core-pulling installation notch. The protruding forming cavity is connected to the mold cavity structure. At least two initial venting slag bags are provided on the outer side of the protruding forming cavity.
[0005] In this technical solution, a core-pulling installation notch is provided to facilitate the installation of the left and right core-pulling structures. At the same time, a protruding forming cavity is provided to ensure that the mating cam on the product is formed. Additionally, two initial venting slag bags are provided to facilitate venting at this location, thereby preventing air entanglement, facilitating air discharge, and improving the quality of the mating cam.
[0006] As a supplement to this technical solution, two front end slag bags are symmetrically arranged at both ends of the upper front surface of the lower mold core, and two rear end slag bags are symmetrically arranged at both ends of the upper rear surface of the lower mold core. The initial venting slag bag and the front end slag bag or the rear end slag bag are connected by a guide groove.
[0007] In this technical solution, a front or rear end slag bag is set to quickly guide the internal gas out, which facilitates the improvement of the quality of the docking cam.
[0008] As a supplement to this technical solution, an upper sprue sleeve and a lower sprue sleeve are installed at the front middle of the upper mold base and the lower mold base, which are stacked on top of each other, and an injection port is formed between the upper sprue sleeve and the lower sprue sleeve.
[0009] In this technical solution, an upper sprue sleeve and a lower sprue sleeve are set to form a combined sprue structure, which facilitates the connection between the mold and the die-casting equipment.
[0010] As a supplement to this technical solution, the mold cavity structure is provided with a central drainage channel that connects to the injection port, which facilitates the drainage of molten aluminum.
[0011] As a supplement to this technical solution, the left core-pulling structure includes a left core-pulling bracket, a left core-pulling cylinder, and a left core-pulling block. The left core-pulling bracket is installed on the left side of the lower mold base, and the left core-pulling cylinder is mounted on the left core-pulling bracket. The left core-pulling block is mounted on the main shaft of the left core-pulling cylinder and inserted into the left side of the mold cavity structure. The right core-pulling structure includes a right core-pulling bracket, a right core-pulling cylinder, and a right core-pulling block. The right core-pulling bracket is installed on the right side of the lower mold base, and the right core-pulling cylinder is mounted on the right core-pulling bracket with its main shaft facing the mold cavity structure. The right core-pulling block, inserted into the right side of the mold cavity structure, is mounted on the main shaft of the right core-pulling cylinder.
[0012] As a supplement to this technical solution, the left and right core-pulling blocks are suspended and inserted into the left or right part of the mold cavity structure. By suspending them, the concave part of the product can cover the left and right core-pulling blocks, thereby ensuring the integrity of the product and facilitating the demolding of the left and right core-pulling blocks.
[0013] As a supplement to this technical solution, several rear slag bags that communicate with the mold cavity structure are arranged side by side at the rear of the upper end face of the lower mold core.
[0014] Beneficial effects: This utility model relates to a mold structure with a mating shaft forming cavity. By setting a core-pulling installation notch, it facilitates the installation of the left and right core-pulling structures. At the same time, by setting a protruding forming cavity, it ensures that the mating shaft on the product is formed. Furthermore, by setting two initial venting slag bags, it facilitates venting at this point, thereby avoiding air entrapment, facilitating air discharge, and improving the quality of the mating shaft. It has the characteristics of improving the overall structure, ensuring product quality, and improving product production efficiency. Attached Figure Description
[0015] Figure 1 This is a structural view of the present invention;
[0016] Figure 2 This is a top view of the present invention;
[0017] Figure 3 This is a structural view of the present invention after removing the upper mold base and the upper mold core;
[0018] Figure 4 This is a structural view of the lower mold core described in this utility model;
[0019] Figure 5 This is a utility model Figure 4 A magnified view of a section at point A in the middle;
[0020] Figure 6 This is a bottom view of the upper mold base and upper mold core described in this utility model;
[0021] Figure 7 This is a structural schematic diagram of the product described in this utility model.
[0022] Illustration: 1. Upper mold base, 2. Lower mold base, 3. Injection port, 4. Left core-pulling structure, 5. Right core-pulling structure, 6. Upper mold core, 7. Lower mold core, 8. Upper sprue sleeve, 9. Lower sprue sleeve, 10. Middle drainage channel, 11. Mold cavity structure, 12. Right core-pulling block, 13. Left core-pulling block, 14. Left core-pulling bracket, 15. Left core-pulling cylinder, 16. Right core-pulling bracket, 17. Right core-pulling cylinder, 18. Core-pulling installation notch, 19. Protruding forming cavity, 20. Initial venting slag pack, 21. Guide groove, 22. Front end slag pack, 23. Rear end slag pack, 24. Rear slag pack, 25. Product, 26. Connecting cam. Detailed Implementation
[0023] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.
[0024] The embodiments of this utility model relate to a mold structure with a mating shaft forming cavity, such as... Figure 1As shown in Figure 6, the structure includes an upper mold base 1, a lower mold base 2, an upper mold core 6, and a lower mold core 7. The upper mold base 1 and the lower mold base 2 are stacked vertically, and the upper mold core 6 and the lower mold core 7, which are also stacked vertically, are installed between them. A mold cavity structure 11 is formed between the upper mold core 6 and the lower mold core 7. A left core-pulling structure 4 and a right core-pulling structure 5 are respectively installed on the left and right sides of the upper mold base 1 and the lower mold base 2. The lower mold core 7 has a core-pulling installation notch 18 on both the left and right sides. A protruding forming cavity 19 is provided in the middle of the core-pulling installation notch 18. The protruding forming cavity 19 is connected to the mold cavity structure 11. At least two initial venting slag bags 20 are provided on the outside of the protruding forming cavity 19.
[0025] In this technical solution, a core-pulling installation notch 18 is provided to facilitate the installation of the left core-pulling structure 4 and the right core-pulling structure 5. At the same time, a protruding forming cavity 19 is provided to ensure that the mating convex shaft 26 on the product 25 is formed. Additionally, two initial venting slag bags 20 are provided to facilitate venting at this location, thereby preventing air entanglement, facilitating air discharge, and improving the quality of the mating convex shaft 26.
[0026] As a supplement to this technical solution, two front end slag packs 22 are symmetrically arranged at both ends of the upper front surface of the lower mold core 7, and two rear end slag packs 23 are symmetrically arranged at both ends of the upper rear surface of the lower mold core 7. The initial venting slag pack 20 and the front end slag packs 22 or the rear end slag packs 23 are connected by a guide groove 21.
[0027] In this technical solution, a front end slag pack 22 or a rear end slag pack 23 is set to quickly guide the internal gas out, which facilitates the improvement of the quality of the docking cam 26.
[0028] As a supplement to this technical solution, an upper sprue sleeve 8 and a lower sprue sleeve 9, which are stacked on top of each other, are installed at the front middle of the upper mold base 1 and the lower mold base 2, and an injection port 3 is formed between the upper sprue sleeve 8 and the lower sprue sleeve 9.
[0029] In this technical solution, an upper sprue sleeve 8 and a lower sprue sleeve 9 are set to form a combined sprue structure, which facilitates the connection between the mold and the die-casting equipment.
[0030] As a supplement to this technical solution, the mold cavity structure 11 is provided with a central drainage channel 10 that connects with the injection port 3. The central drainage channel 10 is provided to facilitate the drainage of aluminum liquid.
[0031] As a supplement to this technical solution, the left core-pulling structure 4 includes a left core-pulling bracket 14, a left core-pulling cylinder 15, and a left core-pulling block 13. The left core-pulling bracket 14 is installed on the left side of the lower mold base 2. The left core-pulling cylinder 15 is installed on the left core-pulling bracket 14. The left core-pulling block 13 is installed on the main shaft of the left core-pulling cylinder 15. The left core-pulling block 13 is inserted into the left side of the mold cavity structure 11. The right core-pulling structure 5 includes a right core-pulling bracket 16, a right core-pulling cylinder 17, and a right core-pulling block 12. The right core-pulling bracket 16 is installed on the right side of the lower mold base 2. The right core-pulling cylinder 17 is installed on the right core-pulling bracket 16 with its main shaft facing the mold cavity structure 11. The right core-pulling block 12, which is inserted into the right side of the mold cavity structure 11, is installed on the main shaft of the right core-pulling cylinder 17.
[0032] As a supplement to this technical solution, the left core-pulling block 13 and the right core-pulling block 12 are suspended and inserted into the left or right part of the mold cavity structure 11. By suspending them, the concave part of the product 25 can cover the left core-pulling block 13 and the right core-pulling block 12, thereby ensuring the integrity of the product 25 and facilitating the demolding of the left core-pulling block 13 and the right core-pulling block 12.
[0033] As a supplement to this technical solution, several rear slag bags 24 that communicate with the mold cavity structure 11 are arranged side by side at the rear part of the upper end face of the lower mold core 7.
[0034] Example
[0035] During production, the upper mold base 1 and the lower mold base 2 are closed, and then molten aluminum is injected into the mold cavity structure 11 through the injection port 3. The molten aluminum enters the mold cavity structure 11 along the central drainage channel 10. The mold cavity structure 11 is divided into two chambers, corresponding to the left core pulling structure 4 and the right core pulling structure 5 respectively. The molten aluminum fills the two chambers, and the two products 25 formed will cover the left core pulling block 13 and the right core pulling block 12 of the left core pulling structure 4 and the right core pulling structure 5. At the same time, the molten aluminum will fill the protrusion forming cavity 19. The air on the protrusion forming cavity 19 is discharged from the initial venting slag bag 20. At the same time, the guide groove 21 on the initial venting slag bag 20 allows excess air to be discharged from the front end slag bag 22 and the rear end slag bag 23, avoiding air entrapment at this position and ensuring that no air shrinkage hole is generated at the forming mating convex shaft 26.
Claims
1. A mold structure with a mating shaft forming cavity, comprising an upper mold base (1), a lower mold base (2), an upper mold core (6), and a lower mold core (7), wherein the upper mold base (1) and the lower mold base (2) are arranged in a stacked manner, and the upper mold core (6) and the lower mold core (7) are installed between them in a stacked manner, wherein the upper mold core (6) and the lower mold core (7) form a mold cavity structure (11), characterized in that: The left and right sides of the upper mold base (1) and the lower mold base (2) are respectively equipped with a left core pulling structure (4) and a right core pulling structure (5). The left and right sides of the lower mold core (7) are provided with core pulling installation notches (18). The middle part of the core pulling installation notch (18) is provided with a protruding part forming cavity (19). The protruding part forming cavity (19) is connected to the mold cavity structure (11). There are not less than two initial venting slag bags (20) on the outside of the protruding part forming cavity (19).
2. The mold structure with a mating shaft forming cavity according to claim 1, characterized in that: The upper end face of the lower mold core (7) is symmetrically provided with two front end slag bags (22) and two rear end slag bags (23) are symmetrically provided at both ends of the upper end face. The initial venting slag bag (20) and the front end slag bag (22) or the rear end slag bag (23) are connected by a guide groove (21).
3. The mold structure with a mating shaft forming cavity according to claim 1, characterized in that: The upper mold base (1) and the lower mold base (2) are equipped with an upper sprue sleeve (8) and a lower sprue sleeve (9) that are stacked on top of each other, and an injection port (3) is formed between the upper sprue sleeve (8) and the lower sprue sleeve (9).
4. The mold structure with a mating shaft forming cavity according to claim 3, characterized in that: The mold cavity structure (11) is provided with a central drainage channel (10) that connects with the injection port (3).
5. The mold structure with a mating shaft forming cavity according to claim 1, characterized in that: The left core-pulling structure (4) includes a left core-pulling bracket (14), a left core-pulling cylinder (15), and a left core-pulling block (13). The left core-pulling bracket (14) is installed on the left side of the lower mold base (2). The left core-pulling cylinder (15) is installed on the left core-pulling bracket (14). The left core-pulling block (13) is installed on the main shaft of the left core-pulling cylinder (15). The left core-pulling block (13) is inserted into the left side of the mold cavity structure (11). The right core-pulling structure (5) includes a right core-pulling bracket (16), a right core-pulling cylinder (17), and a right core-pulling block (12). The right core-pulling bracket (16) is installed on the right side of the lower mold base (2). The right core-pulling cylinder (17) with its main shaft facing the mold cavity structure (11) is installed on the right core-pulling bracket (16). The right core-pulling block (12) inserted into the right side of the mold cavity structure (11) is installed on the main shaft of the right core-pulling cylinder (17).
6. The mold structure with a mating shaft forming cavity according to claim 5, characterized in that: The left core-pulling block (13) and the right core-pulling block (12) are suspended and inserted into the left or right part of the mold cavity structure (11).
7. A mold structure with a mating shaft forming cavity according to claim 1, characterized in that: The lower mold core (7) has several rear slag bags (24) arranged side by side at the rear of its upper end face, which are connected to the mold cavity structure (11).