Die structure for multi-cavity synchronous die casting

Abstract

The utility model is applicable to the technical field of die processing, and provides a die structure for multi-cavity synchronous die casting, which comprises an upper die holder, a lower die holder is arranged below the upper die holder, two groups of cavity templates are arranged on the lower die holder, a die casting air cylinder is mounted at the top of the lower die holder, and the die casting air cylinder is mounted on the lower die holder. A plurality of sets of die-casting columns are fixedly installed at the output end of the die-casting air cylinder, and inner pressing dies are arranged at the bottoms of the multiple sets of die-casting columns correspondingly. The multi-cavity synchronous die casting is realized by synchronously carrying out die casting on the molten metal in the cavities corresponding to the multiple groups of inner pressing die pairs, the simultaneous filling and solidification of all the cavities are ensured, the dimensional precision and consistency of die castings are ensured, and the production efficiency is improved; by arranging the cooling pipeline, a uniform cooling system and an accurate die structure, the temperature and pressure distribution of the die casting in the forming process is more uniform, the defects of shrinkage porosity, deformation and the like are reduced, and the surface quality and the mechanical property of the die casting are improved.

Description

Technical Field

[0001] This utility model relates to mold processing, and in particular to a mold structure for multi-cavity synchronous die casting. Background Technology

[0002] A mold is a set of molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly achieves the shaping of objects by changing the physical state of the material being molded. Often called the "mother of industry," it is a tool that uses external force to shape blanks into parts with specific shapes and dimensions. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, and compression or injection molding of engineering plastics, rubber, ceramics, and other products. A mold has a specific contour or internal cavity shape; by applying a contour shape with cutting edges, the blank can be separated according to the contour line.

[0003] The uneven pressure distribution in the cavity of traditional multi-cavity molds leads to problems such as unstable casting quality and low cooling efficiency. Utility Model Content

[0004] This invention provides a mold structure for multi-cavity synchronous die casting, aiming to solve the problems of uneven cavity pressure distribution in traditional multi-cavity molds, which leads to unstable casting quality and low cooling efficiency.

[0005] This utility model is implemented as follows: a mold structure for multi-cavity synchronous die casting includes an upper mold base, a lower mold base is provided below the upper mold base, two sets of cavity templates are provided on the lower mold base, a die casting cylinder is installed on the top of the lower mold base, and several sets of die casting columns are fixedly installed at the output end of the die casting cylinder, and an inner pressure mold is provided at the bottom of each set of die casting columns.

[0006] Preferably, the bottom of the upper mold base is provided with several sets of guide pillars, and the top of the lower mold base is provided with several sets of guide sleeves. The number of guide pillars and guide sleeves are the same, their positions correspond to each other, and they are compatible with each other.

[0007] The beneficial effects of adopting the above-mentioned further solution are: ensuring that the upper and lower molds can open and close smoothly during the die-casting process, and ensuring the stable operation of the device by setting two sets around the perimeter.

[0008] Preferably, several cavities are spliced ​​at the middle position of the two sets of cavity templates, and the lower mold base is provided with an insert post at both ends of the cavity template at an incline.

[0009] The advantages of adopting the above-mentioned further solution are: it facilitates the disassembly and installation of the cavity template; at the same time, during the die casting process, the high-speed filling of molten metal will generate significant lateral impact force. The inclined guide rod, through its angle design, converts part of the lateral force into axial force, which is absorbed by the mold base, reducing the risk of guide rod bending and extending its service life.

[0010] Preferably, the number of inner pressure molds and the number of cavities are the same, their positions correspond to each other, and they are compatible with each other.

[0011] The beneficial effects of adopting the above-mentioned further scheme are: by simultaneously die-casting the molten metal in the corresponding cavities using multiple sets of internal pressure molds, multi-cavity synchronous die-casting is achieved, ensuring that each cavity is filled and solidified at the same time, thus guaranteeing the dimensional accuracy and consistency of the die-cast parts and improving production efficiency.

[0012] Preferably, the bottom of the lower mold base is provided with a liquid inlet pipe, which is connected to several sets of cavities.

[0013] The beneficial effect of adopting the above-mentioned further solution is that it ensures the stability of the feeding process when filling the cavity with molten metal.

[0014] Preferably, the lower mold base is provided with several sets of cooling pipes on both sides of the cavity template.

[0015] The beneficial effects of adopting the above-mentioned further solutions are: through a uniform cooling system and a precise mold structure, the temperature and pressure distribution of the die castings during the forming process is more uniform, reducing the occurrence of defects such as shrinkage porosity and deformation, and improving the surface quality and mechanical properties of the die castings.

[0016] Preferably, a set of return springs is provided on both sides of the die-casting column, and the top end of the return spring is fixedly connected to the output end of the die-casting cylinder.

[0017] The beneficial effect of adopting the above-mentioned further solution is that it facilitates the repositioning of the die-cast column after die casting, thus ensuring the stability of the structure.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a mold structure for multi-cavity synchronous die casting. By installing two sets of cavity molds on the lower mold base, and with the cavity molds and lower mold base being detachable, it facilitates the replacement of different cavity molds and the die casting of different products, thus improving the applicability of the device. By simultaneously die casting the molten metal in the corresponding cavities using multiple sets of internal molds, multi-cavity synchronous die casting is achieved, ensuring that each cavity is filled and solidified simultaneously, guaranteeing the dimensional accuracy and consistency of the die castings, and improving production efficiency. By setting up cooling pipes, and through a uniform cooling system and precise mold structure, the temperature and pressure distribution of the die castings during the forming process is more uniform, reducing the occurrence of defects such as shrinkage porosity and deformation, and improving the surface quality and mechanical properties of the die castings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the side view structure;

[0021] Figure 3 for Figure 1 Another side view of the structure.

[0022] In the diagram: 1. Upper mold base; 2. Lower mold base; 3. Cavity template; 4. Die-casting cylinder; 5. Die-casting column; 6. Inner mold; 7. Guide column; 8. Guide sleeve; 9. Cavity; 10. Insert column; 11. Cooling pipe; 12. Return spring; 13. Liquid inlet pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] Please see Figure 1-3 This utility model provides a mold structure technical solution for multi-cavity synchronous die casting: a mold structure for multi-cavity synchronous die casting includes an upper mold base 1, a lower mold base 2 is arranged below the upper mold base 1, two sets of cavity templates 3 are arranged on the lower mold base 2, a die casting cylinder 4 is installed on the top of the lower mold base 2, and several sets of die casting columns 5 are fixedly installed at the output end of the die casting cylinder 4, and an inner pressure mold 6 is arranged at the bottom of each set of die casting columns 5.

[0025] In this embodiment, two sets of cavity templates 3 are installed on the lower mold base 2. The cavity templates 3 and the lower mold base 2 are detachable, which facilitates the replacement of different cavity templates 3 and the die casting of different products, thus improving the applicability of the device. A die casting cylinder 4 is provided, and a horizontal plate is fixedly connected to the output end of the die casting cylinder 4. Several sets of die casting columns 5 are evenly fixedly connected to the bottom of the horizontal plate. The horizontal plate is a connecting part inside the upper mold base 1, which will not be described in detail here. An inner pressure mold 6 is provided at the bottom of the die casting column 5. The cavity 9 on the cavity template 3 is die cast a second time through the inner pressure mold 6, thereby improving the die casting effect.

[0026] Furthermore, several sets of guide pillars 7 are provided around the bottom of the upper mold base 1, and several sets of guide sleeves 8 are provided around the top of the lower mold base 2. The number of guide pillars 7 and guide sleeves 8 are the same, their positions correspond to each other, and they are compatible with each other.

[0027] In this embodiment, the upper mold base 1 and the lower mold base 2 are slidably connected by guide posts 7 and guide sleeves 8. The upper mold base 1 and the lower mold base 2 are precisely positioned and guided by guide posts 7 and guide sleeves 8, ensuring that the upper and lower molds can open and close smoothly during the die casting process. By setting two sets around the perimeter, the device can be made to work smoothly.

[0028] Typically, several cavities 9 are spliced ​​together in the middle of the two sets of cavity templates 3, and the lower mold base 2 is inclined at both ends of the cavity template 3 with an insert post 10.

[0029] In this embodiment, two sets of cavity templates 3 are provided, and the two sets of cavity templates 3 are tightly fitted together to form a complete cavity 9. Molten metal is injected into several sets of cavities 9, and die casting is performed by the upper mold base. The two sets of cavity templates 3 and the lower mold base 2 are fitted together by inclined grooves, and the inclination is the same as that of the inserts 10 at both ends, which facilitates the disassembly and installation of the cavity templates 3. At the same time, during the die casting process, the high-speed filling of molten metal will generate a significant lateral impact force. The inclined guide rod is designed to convert part of the lateral force into axial force, which is absorbed by the mold base, reducing the risk of guide rod bending and extending service life.

[0030] Specifically, the number of internal pressure molds 6 and cavities 9 are the same, their positions correspond to each other, and they are compatible with each other.

[0031] In this embodiment, by setting up several sets of internal pressure molds with six cavities 9, the same number of cavities and corresponding positions are used. By simultaneously die-casting the molten metal in the corresponding cavities 9 of the multiple sets of internal pressure molds 6, multi-cavity synchronous die casting is achieved, ensuring that each cavity is filled and solidified at the same time, thus guaranteeing the dimensional accuracy and consistency of the die castings and improving production efficiency.

[0032] In addition, the bottom of the lower mold base 2 is provided with a liquid inlet pipe 13, which is connected to several sets of cavities 9.

[0033] In this embodiment, a liquid inlet pipe 13 is provided at the bottom of the lower mold base 2. The liquid inlet pipe 13 is connected to an external feeding pipe. The liquid inlet pipe 13 fills the cavity 9 with molten metal through the liquid inlet channel, ensuring the stability of the feeding.

[0034] In addition, the lower mold base 2 is provided with several sets of cooling pipes 11 on both sides of the cavity template 3.

[0035] In this embodiment, cooling pipes 11 are provided on both sides of the cavity template 3 in the lower mold base 2 to achieve uniform cooling of the cavity 9. The cooling medium can be water, oil or special coolant. The cooling pipes 11 are connected and driven by the circulation pump of the external cooler, and the coolant circulates in the cooling pipes 11 to remove the heat of the mold. Through the uniform cooling system and the precise mold structure, the temperature and pressure distribution of the die casting is more uniform during the molding process, which reduces the occurrence of defects such as shrinkage porosity and deformation, and improves the surface quality and mechanical properties of the die casting.

[0036] It should be noted that a set of return springs 12 are provided on both sides of the die-casting column 5, and the top of the return spring 12 is fixedly connected to the output end of the die-casting cylinder 4.

[0037] In this embodiment, the reset springs 12 installed on both sides of the die-cast column 5 facilitate the reset of the die-cast column 5 after die-casting, thus ensuring the stability of the structure.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold structure for multi-cavity synchronous die casting, characterized in that: It includes an upper mold base (1), a lower mold base (2) is provided below the upper mold base (1), two sets of cavity templates (3) are provided on the lower mold base (2), a die-casting cylinder (4) is installed on the top of the lower mold base (2), and several sets of die-casting columns (5) are fixedly installed at the output end of the die-casting cylinder (4), and an inner pressure mold (6) is provided at the bottom of each set of die-casting columns (5).

2. The mold structure for multi-cavity synchronous die casting according to claim 1, characterized in that: The bottom of the upper mold base (1) is provided with several sets of guide pillars (7), and the top of the lower mold base (2) is provided with several sets of guide sleeves (8). The number of guide pillars (7) and guide sleeves (8) are the same, their positions correspond to each other, and they are compatible with each other.

3. The mold structure for multi-cavity synchronous die casting according to claim 1, characterized in that: Several cavities (9) are spliced ​​at the middle position of the two sets of cavity templates (3), and the lower mold base (2) is provided with an insert (10) at both ends of the cavity template (3).

4. The mold structure for multi-cavity synchronous die casting according to claim 3, characterized in that: The number of inner pressure molds (6) and the number of cavities (9) are the same, their positions correspond to each other, and they are compatible with each other.

5. The mold structure for multi-cavity synchronous die casting according to claim 3, characterized in that: The bottom of the lower mold base (2) is provided with a liquid inlet pipe (13), which is connected to several sets of cavities (9).

6. The mold structure for multi-cavity synchronous die casting according to claim 1, characterized in that: The lower mold base (2) is provided with several sets of cooling pipes (11) on both sides of the cavity template (3).

7. The mold structure for multi-cavity synchronous die casting according to claim 1, characterized in that: A set of return springs (12) is provided on both sides of the die-casting column (5), and the top of the return springs (12) is fixedly connected to the output end of the die-casting cylinder (4).

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