Die-casting die for engine support

Abstract

The utility model relates to a die-casting die for an engine support, which comprises an upper die holder, a lower die holder and a die foot structure, the upper die holder and the lower die holder are stacked up and down, an upper die core and a lower die core which are stacked up and down are arranged between the upper die holder and the lower die holder, a star-shaped product fork-shaped groove is arranged in the middle of the lower end face of the upper die core, and a star-shaped product fork-shaped groove is arranged in the middle of the lower end face of the lower die core. Three curved surface protrusions surrounding the star-shaped product fork-shaped groove are arranged on the edge of the star-shaped product fork-shaped groove, a product cavity corresponding to the star-shaped product fork-shaped groove is formed in the middle of the upper end face of the lower die core, and three curved surface indents corresponding to the curved surface protrusions are arranged on the edge of the product cavity. And the product cavity is provided with an insertion-shaped groove which extends outwards. The device has the characteristics of improving the production efficiency of products, reducing the production cost of the products, ensuring the quality of the products and the like.

Description

Technical Field

[0001] This utility model relates to the field of die casting mold technology, and in particular to a die casting mold for engine brackets. Background Technology

[0002] To reduce the vibration intensity of a car engine during operation, a star-shaped bracket structure needs to be designed to support the engine. However, conventional star-shaped bracket structures require multiple core-pulling structures to assist in molding during production. After being formed by die-casting molds, the product needs to be further precision-machined by machine tools to ensure the overall structure of the product. This production method has a high production cost and is not conducive to mass production. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a die-casting mold for engine brackets, which has the characteristics of improving product production efficiency, reducing product production costs, and ensuring product quality.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a die-casting mold for an engine bracket is provided, including an upper mold base, a lower mold base, and a mold foot structure. The upper mold base and the lower mold base are stacked vertically, and an upper mold core and a lower mold core are installed between them. A star-shaped product fork-shaped groove is provided in the middle of the lower end face of the upper mold core. Three curved protrusions surrounding the star-shaped product fork-shaped groove are provided at the edge of the groove. A product cavity corresponding to the star-shaped product fork-shaped groove is provided in the middle of the upper end face of the lower mold core. Three curved concave surfaces corresponding to the curved protrusions are provided at the edge of the product cavity. An outwardly extending insert-shaped groove is provided on the product cavity. An outwardly extending shallow venting groove is provided on the lower mold core near the end of the insert-shaped groove. The product cavity and the star-shaped product fork-shaped groove form a mold cavity structure.

[0005] In this technical solution, star-shaped product fork-shaped grooves and product cavities are set to ensure the overall molding of the product. At the same time, by setting curved protrusions and curved concave surfaces, the parting surface of the product is very obvious, ensuring the overall structure of the product. This also reduces the number of core-pulling devices, lowers the overall cost of the mold, ensures one-time molding of the product, avoids secondary finishing, and greatly reduces production costs.

[0006] As a supplement to this technical solution, a central core-pulling assembly is installed inside the upper mold base. The central core-pulling assembly includes a core-pulling cylinder, a core-pulling drive component, an inclined insertion rod, and a core-pulling slide. The core-pulling slide is located in the middle of the upper end face of the upper mold core. The core-pulling slide is provided with an inclined insertion rod whose lower end is inclined to the left front. The lower end of the inclined insertion rod obliquely passes through the core-pulling slide and the upper mold core and contacts the middle of the fork-shaped groove of the star-shaped product. A core-pulling cylinder with its rear end inclined to the left is installed on the upper front side of the upper mold base. A core-pulling drive component is installed on the main shaft of the core-pulling cylinder. The core-pulling drive component contacts the inclined insertion rod. When the main shaft of the core-pulling cylinder retracts, the core-pulling drive component moves to the right front, and the core-pulling drive component drives the inclined insertion rod to move upward. The lower end of the inclined insertion rod disengages from the fork-shaped groove of the star-shaped product.

[0007] In this technical solution, a central core-pulling assembly is used to facilitate the forming of holes at the product ends. A core-pulling slide is used to limit the running direction of the inclined insertion rod. A core-pulling cylinder and a core-pulling drive are used to drive the inclined insertion rod to reciprocate.

[0008] As a supplement to this technical solution, the lower end face of the upper mold core is provided with a downward protruding mountain-shaped protrusion on the left side, and the lower mold core is provided with a mountain-shaped groove matching the mountain-shaped protrusion on the left side.

[0009] This technical solution ensures the upper and lower mold cores are sealed and intact by setting mountain-shaped protrusions and grooves, thereby improving product quality.

[0010] As a supplement to this technical solution, a gate structure is installed in the left part of the upper mold base, and a runner groove is provided on the left side of the lower end face of the upper mold core, surrounding the front and rear sides of the mountain-shaped protrusion. The two ends of the runner groove are respectively connected to the gate structure and the star-shaped product fork-shaped groove. A material stalk structure is provided inside the gate structure.

[0011] In this technical solution, flow channels are set to facilitate the entry of molten aluminum and ensure product quality.

[0012] As a supplement to this technical solution, two hole-pulling cylinders are installed side by side on the right rear part of the upper mold base, and a hole-forming insert rod that is inclined to be inserted into the end of the fork-shaped groove of the star-shaped product is installed on the main shaft of the hole-pulling cylinder.

[0013] Beneficial effects: This utility model relates to a die-casting mold for engine brackets. By setting star-shaped product fork-shaped grooves and product cavities, the overall molding of the product is ensured. At the same time, by setting curved protrusions and curved concave surfaces, the parting surface of the product is very obvious, ensuring the overall structure of the product. It also reduces the number of core-pulling devices, reduces the overall cost of the mold, ensures one-time molding of the product, avoids secondary finishing, and greatly reduces production costs. It has the characteristics of improving product production efficiency, reducing product production costs, and ensuring product quality. Attached Figure Description

[0014] Figure 1 This is a structural view of the present invention;

[0015] Figure 2 This is a structural view of the central core-pulling assembly described in this utility model;

[0016] Figure 3 This is a structural view of the upper mold core and lower mold core described in this utility model;

[0017] Figure 4 This is a structural view of the lower mold core described in this utility model;

[0018] Figure 5 This is a bottom view of the upper mold core described in this utility model.

[0019] Illustrations: 1. Upper mold base, 2. Lower mold base, 3. Mold foot structure, 4. Middle core-pulling assembly, 5. Upper mold core, 6. Lower mold core, 7. Sprue structure, 8. Hole core-pulling cylinder, 9. Hole forming insert, 10. Core-pulling slide, 11. Angled insert, 12. Core-pulling cylinder, 13. Core-pulling drive component, 14. Mountain-shaped groove, 15. Product cavity, 16. Curved concave surface, 17. Venting shallow groove, 18. Material handle structure, 19. Star-shaped product fork-shaped groove, 20. Runner groove, 21. Mountain-shaped protrusion, 22. Curved protrusion. Detailed Implementation

[0020] 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.

[0021] The present invention relates to a die-casting mold for an engine mount, such as... Figure 1As shown in Figure 5, the structure includes an upper mold base 1, a lower mold base 2, and a mold foot structure 3. The upper mold base 1 and the lower mold base 2 are stacked vertically, and an upper mold core 5 and a lower mold core 6 are installed between them, also stacked vertically. A star-shaped product fork-shaped groove 19 is provided in the middle of the lower end face of the upper mold core 5. Three curved protrusions 22 are provided around the edge of the star-shaped product fork-shaped groove 19. A product cavity 15 corresponding to the star-shaped product fork-shaped groove 19 is provided in the middle of the upper end face of the lower mold core 6. Three curved indentations 16 corresponding to the curved protrusions 22 are provided at the edge of the product cavity 15. An outwardly extending insert-shaped groove is provided on the product cavity 15. An outwardly extending venting shallow groove 17 is provided on the lower mold core 6 near the end of the insert-shaped groove. The product cavity 15 and the star-shaped product fork-shaped groove 19 form a mold cavity structure.

[0022] In this technical solution, star-shaped product fork-shaped groove 19 and product cavity 15 are set to ensure the overall molding of the product. At the same time, curved protrusion 22 and curved concave surface 16 are set to make the parting surface of the product very obvious, ensuring the overall structure of the product. This also reduces the number of core pulling devices, reduces the overall cost of the mold, ensures one-time molding of the product, avoids secondary finishing, and greatly reduces production costs.

[0023] As a supplement to this technical solution, a central core-pulling assembly 4 is installed inside the upper mold base 1. The central core-pulling assembly 4 includes a core-pulling cylinder 12, a core-pulling drive component 13, an inclined insertion rod 11, and a core-pulling slide 10. The core-pulling slide 10 is located in the middle of the upper end face of the upper mold core 5. The core-pulling slide 10 is provided with an inclined insertion rod 11 whose lower end is inclined to the left front. The lower end of the inclined insertion rod 11 obliquely passes through the core-pulling slide 10 and the upper mold core 5, and connects with the star-shaped... The product fork-shaped groove 19 is in contact with the middle. The upper front side of the upper mold base 1 is equipped with a core-pulling cylinder 12 with its rear end tilted to the left. The core-pulling cylinder 12 has a core-pulling drive component 13 mounted on its main shaft. The core-pulling drive component 13 is in contact with the inclined insertion rod 11. When the main shaft of the core-pulling cylinder 12 retracts, the core-pulling drive component 13 moves to the right front. The core-pulling drive component 13 drives the inclined insertion rod 11 to move upward. The lower end of the inclined insertion rod 11 disengages from the star-shaped product fork-shaped groove 19.

[0024] In this technical solution, a central core-pulling assembly 4 is provided to facilitate the forming of holes at the product ends. A core-pulling slide 10 is provided to limit the running direction of the inclined insertion rod 11. A core-pulling cylinder 12 and a core-pulling drive component 13 are provided to drive the inclined insertion rod 11 to reciprocate.

[0025] As a supplement to this technical solution, the lower end face of the upper mold core 5 is provided with a downward protruding mountain-shaped protrusion 21 on the left side, and the lower mold core 6 is provided with a mountain-shaped groove 14 that matches the mountain-shaped protrusion 21 on the left side.

[0026] In this technical solution, the upper mold core 5 and the lower mold core 6 are sealed and intact by setting the mountain-shaped protrusion 21 and the mountain-shaped groove 14, thereby improving product quality.

[0027] As a supplement to this technical solution, a gate structure 7 is installed in the left part of the upper mold base 1, and a runner groove 20 is provided on the left side of the lower end face of the upper mold core 5, which surrounds the front and rear sides of the mountain-shaped protrusion 21. The two ends of the runner groove 20 are respectively connected to the gate structure 7 and the star-shaped product fork-shaped groove 19. A material stalk structure 18 is provided in the gate structure 7.

[0028] In this technical solution, a flow channel 20 is provided to facilitate the entry of molten aluminum and ensure product quality.

[0029] As a supplement to this technical solution, two hole-pulling cylinders 8 are installed side by side on the right rear part of the upper mold base 1, and a hole-forming insert 9 is installed on the main shaft of the hole-pulling cylinder 8 to be inclined to insert into the end of the star-shaped product fork-shaped groove 19.

[0030] Example

[0031] During production, the upper mold base 1 and the lower mold base 2 are first closed. After that, the product cavity 15 and the star-shaped product fork-shaped groove 19 are connected to form the mold cavity structure. After that, the aluminum liquid is injected into the gate structure 7 through the die casting machine and enters the mold cavity structure along the gate structure 7 and the runner groove 20. When filling is completed, the mold cavity structure is very obvious because the edge of the mold cavity structure is provided with curved protrusions 22 and curved concave surfaces 16. There is no need to set up extra core-pulling structures, which greatly reduces the manufacturing cost of the mold. When the mold cools down, the product is formed and then the mold is opened. First, the middle core-pulling component 4 needs to be activated. The inclined insertion rod 11 moves outward to pull the core. After that, the hole core-pulling cylinder 8 is activated. The hole core-pulling cylinder 8 drives the hole forming insertion rod 9 to come out of the product.

Claims

1. A die-casting mold for an engine mount, characterized in that: The system includes an upper mold base (1), a lower mold base (2), and a mold foot structure (3). The upper mold base (1) and the lower mold base (2) are stacked vertically, and an upper mold core (5) and a lower mold core (6) are installed between them, also stacked vertically. The lower end face of the upper mold core (5) has a star-shaped product fork-shaped groove (19) in the middle. The edge of the star-shaped product fork-shaped groove (19) has three curved protrusions (22) surrounding it. The lower mold core (6) The upper end face is provided with a product cavity (15) corresponding to the star-shaped product fork-shaped groove (19). The edge of the product cavity (15) is provided with three curved indentations (16) corresponding to the curved protrusions (22). The product cavity (15) is provided with an outwardly extending insert-shaped groove. The lower mold core (6) is provided with an outwardly extending shallow venting groove (17) near the end of the insert-shaped groove. The product cavity (15) and the star-shaped product fork-shaped groove (19) form a mold cavity structure.

2. The die-casting mold for an engine mount according to claim 1, characterized in that: The upper mold base (1) is equipped with a central core-pulling assembly (4). The central core-pulling assembly (4) includes a core-pulling cylinder (12), a core-pulling drive component (13), an inclined insertion rod (11), and a core-pulling slide (10). The core-pulling slide (10) is located in the middle of the upper end face of the upper mold core (5). The core-pulling slide (10) is provided with an inclined insertion rod (11) whose lower end is inclined to the left front. The lower end of the inclined insertion rod (11) obliquely passes through the core-pulling slide (10) and the upper mold core (5), and intersects with the star-shaped product fork-shaped groove. (19) The upper mold base (1) is equipped with a core-pulling cylinder (12) with its rear end tilted to the left. The core-pulling cylinder (12) has a core-pulling drive (13) mounted on its main shaft. The core-pulling drive (13) is in contact with the inclined insertion rod (11). When the main shaft of the core-pulling cylinder (12) retracts, the core-pulling drive (13) moves to the right front. The core-pulling drive (13) drives the inclined insertion rod (11) to move upward. The lower end of the inclined insertion rod (11) and the star-shaped product fork-shaped groove (19) disengage.

3. The die-casting mold for an engine mount according to claim 1, characterized in that: The lower end face of the upper mold core (5) is provided with a downward protruding mountain-shaped protrusion (21) on the left side, and the lower mold core (6) is provided with a mountain-shaped groove (14) that matches the mountain-shaped protrusion (21) on the left side.

4. A die-casting mold for an engine mount according to claim 3, characterized in that: The upper mold base (1) is equipped with a gate structure (7) on the left side. The lower end face of the upper mold core (5) is provided with a runner groove (20) surrounding the front and rear sides of the mountain-shaped protrusion (21). The two ends of the runner groove (20) are connected to the gate structure (7) and the star-shaped product fork-shaped groove (19) respectively. The gate structure (7) is provided with a material stalk structure (18).

5. A die-casting mold for an engine mount according to claim 1, characterized in that: Two hole-pulling cylinders (8) are installed side by side on the right rear part of the upper mold base (1). The hole-pulling cylinder (8) has a hole-forming insert (9) that is inclined to be inserted into the end of the star-shaped product fork-shaped groove (19) on its main shaft.

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