Extrusion die for aluminum profile of high-power tooth radiator

Abstract

The utility model discloses a high-power tooth radiator aluminum profile extrusion die which comprises an upper die and a lower die, a step-by-step forming structure for high-power teeth of a radiator is arranged in the extrusion die, and the step-by-step forming structure comprises a tooth root forming work head arranged in the upper die and a tooth end forming cavity arranged in the lower die. The tooth root forming work head comprises a plurality of tooth root work head blocks which are uniformly arranged at intervals, and gaps among the tooth root work head blocks are processed to form tooth root parts of high-power teeth; the tooth end forming cavity comprises tooth end work head blocks arranged in a comb shape, and the tooth root work head blocks and the tooth end work head blocks are arranged in a one-to-one correspondence mode. The shunting bridge is arranged in the feeding hole, so that not only is the arrangement of the tooth root work head block facilitated, but also aluminum materials can be shunted, the feeding balance is improved, and the original problem of non-uniform feeding is solved; the long high-power tooth is divided into two parts through the step-by-step forming structure and is continuously extruded and formed, so that the problem that the pressure bearing capacity of an original long forming cavity cantilever is weak is solved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum profile extrusion die technology, specifically to a high-density toothed radiator aluminum profile extrusion die. Background Technology

[0002] Aluminum profile extrusion is a metal forming process that uses heated aluminum rods or tubes to create aluminum profiles of different shapes and sizes by passing them through a die (also called a mold core). This process is widely used in construction, transportation, machinery, electronics, and many other fields due to its high flexibility and fast production efficiency.

[0003] The design, manufacture, and maintenance of aluminum profile extrusion dies are key factors in ensuring the quality of aluminum profile products. Aluminum profile extrusion dies are usually made of high-strength, high-temperature resistant alloy steel to ensure that the dies have good wear resistance and heat treatment performance and can withstand high-temperature and high-pressure working environments.

[0004] High-tooth aluminum alloy heat sinks, due to their excessive number of teeth and large tooth height, result in an excessively large ratio between fin height and adjacent fin spacing. Traditional heat sink mold designs are no longer suitable for high-tooth heat sinks; otherwise, fin misalignment and breakage may occur during extrusion. Traditional high-tooth heat sink molds cannot guarantee a stable connection between the fins and the substrate, failing to maintain the overall strength of the fins. Furthermore, they are prone to tooth misalignment and breakage during extrusion molding, leading to low product yield and substandard extruded profile quality.

[0005] In view of the above, it is necessary to propose a high-density tooth radiator aluminum profile extrusion die to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to overcome the defects in the existing technology and provide a high-density toothed radiator aluminum profile extrusion die.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows: A high-ratio tooth radiator aluminum profile extrusion die includes an upper die and a lower die. The upper die is provided with an axially penetrating feed hole, and the lower die is provided with a forming outlet. The extrusion die is provided with a step-by-step forming structure for high-ratio teeth of the radiator. The step-by-step forming structure includes a tooth root forming head disposed in the upper die and a tooth end forming cavity disposed in the lower die. The tooth root forming head includes a plurality of tooth root head blocks arranged at even intervals, and the gaps between the tooth root head blocks are processed to form the tooth root of the high-ratio teeth. The tooth end forming cavity includes tooth end head blocks arranged in a comb-like pattern. The tooth root head blocks and tooth end head blocks are arranged one-to-one, and the ends of the tooth root head blocks are connected to one end of the tooth end head blocks to form a sealing end.

[0008] Furthermore, the upper mold has a straight-line flow divider bridge inside the feed hole, which divides the feed hole into two half holes. Several tooth root end blocks are arranged and fixed on the flow divider bridge, so that the tooth root end blocks face the lower mold side.

[0009] Furthermore, the tooth root forming head is inserted into the forming outlet, so that the gap between the end of the tooth root forming head block away from the tooth end forming cavity and the inner wall of the forming outlet forms a substrate forming opening for the heat sink substrate.

[0010] Furthermore, the width of the tooth root forming head is smaller than the width of the tooth end forming cavity, forming a step at the sealing end, so that the width of the high-magnification teeth of the extruded radiator at the tooth root is greater than the width of the tooth end.

[0011] Furthermore, both the upper mold and the lower mold are cylindrical in shape. The upper mold has a cylindrical groove on the side facing the lower mold, and the lower mold has a cylindrical boss on the side facing the upper mold. When the upper mold and the lower mold are closed, the boss is inserted into the groove.

[0012] Furthermore, the inner wall of the discharge port of the lower mold and the outer periphery of each tooth end block are provided with a hollow blade section, which includes a primary hollow blade and a secondary hollow blade.

[0013] The advantages and beneficial effects of this utility model are as follows: This utility model provides an aluminum profile extrusion die for a high-ratio tooth radiator. A flow divider bridge is set in the feed hole, which not only facilitates the setting of the tooth root end block, but also allows for the diversion of aluminum material, improving the material supply balance and making up for the original problem of uneven material supply. By using a step-by-step forming structure, the long high-ratio teeth are divided into two parts and continuously extruded, thereby avoiding the weak pressure bearing capacity of the original long forming cavity cantilever, as well as the original problem of the high-ratio teeth being prone to tooth deviation and breakage after forming. Attached Figure Description

[0014] Figure 1 This is one of the isometric views of an aluminum profile extrusion die for a high-magnification toothed radiator according to this utility model;

[0015] Figure 2 This is the second isometric view of a high-magnification toothed radiator aluminum profile extrusion die of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of an aluminum profile extrusion die for a high-density radiator according to this utility model;

[0017] Figure 4 This is a utility model Figure 3 AA section diagram;

[0018] Figure 5 This is a front view of the lower mold forming outlet of this utility model;

[0019] Figure 6 This is a utility model Figure 5 Middle BB section view;

[0020] Figure 7 This is a utility model Figure 5 C-section view;

[0021] Figure 8 This is an isometric drawing of the aluminum profile extrusion die for a high-density toothed radiator in the existing design;

[0022] In the diagram: 1. Upper mold; 2. Lower mold; 3. Feed hole; 4. Forming outlet; 5. Tooth root forming head; 6. Tooth end forming cavity; 7. Tooth root forming head block; 8. Tooth end forming head block; 9. Sealing end; 10. Diverter bridge; 11. Substrate forming port; 12. Step; 13. Slot; 14. Boss; 15. First-stage air cutter; 16. Second-stage air cutter. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0024] For example, extrusion dies in the prior art Figure 8 As shown, the forming head used to form high-density heat sinks is a single piece that extends from the root of the tooth to the tip. Due to its long length, the long span makes it more susceptible to deformation under high pressure during extrusion molding. Small deformations can lead to tooth misalignment and tooth breakage in the profile product, resulting in a low yield rate.

[0025] In this embodiment, the extrusion die separates the forming parts of the heat sink from those of the existing forming die. A high-density toothed heat sink aluminum profile extrusion die, such as... Figure 1-7As shown, the device includes an upper mold 1 and a lower mold 2. The upper mold 1 has an axially penetrating feed hole 3, and the lower mold 2 has a forming outlet 4. The extrusion mold has a step-by-step forming structure for high-magnification teeth of the radiator. The step-by-step forming structure includes a tooth root forming head 5 set in the upper mold 1 and a tooth end forming cavity 6 set in the lower mold 2. The tooth root forming head 5 includes several tooth root head blocks 7 arranged at even intervals. The gaps between the tooth root head blocks 7 are processed to form the tooth root of the high-magnification teeth. The tooth end forming cavity 6 includes tooth end head blocks 8 arranged in a comb-like pattern. The tooth root head blocks 7 and tooth end head blocks 8 are arranged one-to-one, and the ends of the tooth root head blocks 7 are connected to one end of the tooth end head blocks 8 to form a sealing end 9. In this embodiment, the long integral forming head is divided into a tooth root forming head 5 and a tooth end forming cavity 6. When the mold is closed, the two can be connected to form an integral whole. Compared with the integral design method in the prior art, this mold has the advantages of better stability of the forming head and higher processing accuracy, avoiding the phenomenon of high-magnification tooth deviation and tooth breakage during aluminum profile extrusion forming.

[0026] Furthermore, the upper mold 1 has a straight-line flow divider 10 inside the feed hole 3, which divides the feed hole 3 into two half-holes. Several tooth root end blocks 7 are arranged and fixed on the flow divider 10, with the tooth root end blocks 7 facing the lower mold 2. Compared with the prior art, the flow divider 10 can distribute the aluminum profile to both sides, thereby avoiding the defect of more material being supplied to the center of the mold and less material being supplied to the edges.

[0027] Furthermore, the tooth root forming head 5 is inserted into the forming outlet 4, so that the gap between the end of the tooth root forming head block 7 away from the tooth end forming cavity 6 and the inner wall of the forming outlet 4 forms the substrate forming opening 11 for the heat sink substrate. After the upper and lower molds 2 are closed, a cavity with the same profile as the product material is formed, thereby extruding and processing a product that meets the requirements.

[0028] Furthermore, the width of the tooth root forming head 5 is smaller than the width of the tooth end forming cavity 6, forming a step 12 at the sealing end 9, so that the width of the high-magnification teeth of the extruded radiator at the tooth root is greater than the width at the tooth end. For example... Figure 4 As shown, this design can make the root of the high-density tooth heat sink of the extruded product thicker than the upper end, thereby strengthening the firmness of the heat sink. Moreover, the connection end of the tooth root forming head 5 and the tooth end forming cavity 6 is located at the sealing end 9, so the gap of the extruded product can be located at the corner of the step 12, which will not affect the appearance of the product.

[0029] Furthermore, both the upper mold 1 and the lower mold 2 are cylindrical structures. The upper mold 1 has a cylindrical recess 13 on the side facing the lower mold 2, and the lower mold 2 has a cylindrical boss 14 on the side facing the upper mold 1. When the upper mold 1 and the lower mold 2 are closed, the boss 14 is inserted into the recess 13. Furthermore, the inner wall of the discharge port of the lower mold 2 and the outer periphery of each toothed end block 8 are provided with a hollow section, which includes a primary hollow section 15 and a secondary hollow section 16. The hollow section design provides additional space, reducing the resistance encountered by the aluminum material when passing through the mold, facilitating smoother aluminum flow; it also helps stabilize the final dimensions of the profile, ensuring that the profile meets design requirements; and it further improves the surface finish of the profile, making it smoother.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-density toothed radiator aluminum profile extrusion die, comprising an upper die (1) and a lower die (2), wherein the upper die (1) is provided with an axially penetrating feed hole (3), and the lower die (2) is provided with a forming outlet (4), characterized in that, The extrusion die is provided with a step-by-step forming structure for high-magnification teeth of the radiator. The step-by-step forming structure includes a tooth root forming head (5) set in the upper die (1) and a tooth end forming cavity (6) set in the lower die (2). The tooth root forming head (5) includes a number of tooth root head blocks (7) arranged at even intervals. The gap between the tooth root head blocks (7) is processed to form the tooth root of the high-magnification teeth. The tooth end forming cavity (6) includes tooth end head blocks (8) arranged in a comb shape. The tooth root head blocks (7) and the tooth end head blocks (8) are arranged one-to-one, and the end of the tooth root head block (7) is connected to one end of the tooth end head block (8) to form a sealing end (9).

2. The high-ratio toothed radiator aluminum profile extrusion die according to claim 1, characterized in that, The upper mold (1) has a straight-line diversion bridge (10) in the feed hole (3). The diversion bridge (10) divides the feed hole (3) into two half holes. Several tooth root end blocks (7) are arranged and fixed on the diversion bridge (10), so that the tooth root end blocks (7) are set facing the lower mold (2).

3. The high-ratio toothed radiator aluminum profile extrusion die according to claim 2, characterized in that, The tooth root forming head (5) is inserted into the forming outlet (4), so that the gap between the end of the tooth root forming head block (7) away from the tooth end forming cavity (6) and the inner wall of the forming outlet (4) forms a substrate forming port (11) for the heat sink substrate.

4. The high-ratio toothed radiator aluminum profile extrusion die according to claim 3, characterized in that, The width of the tooth root forming head (5) is smaller than the width of the tooth end forming cavity (6), forming a step (12) at the sealing end (9), so that the width of the high-magnification teeth of the extruded radiator at the tooth root is greater than the width of the tooth end.

5. The high-ratio toothed radiator aluminum profile extrusion die according to claim 1, characterized in that, Both the upper mold (1) and the lower mold (2) are cylindrical. The upper mold (1) has a cylindrical groove (13) on the side facing the lower mold (2), and the lower mold (2) has a cylindrical boss (14) on the side facing the upper mold (1). When the upper mold (1) and the lower mold (2) are closed, the boss (14) is inserted into the groove (13).

6. The high-ratio toothed radiator aluminum profile extrusion die according to claim 1, characterized in that, The inner wall of the discharge port of the lower mold (2) and the outer periphery of each tooth end block (8) are provided with a hollow knife section, which includes a first-level hollow knife (15) and a second-level hollow knife (16).

Images