A nested aluminum profile extrusion die

Abstract

The utility model relates to a nested aluminum profile extrusion die, include: upper die, lower die, cavity inner block and mould core, the bottom of upper die is provided with lower die, is provided with cavity inner block between upper die and lower die, the inside of cavity inner block is provided with mould core, mould core with upper die is connected through the connecting piece between, the utility model discloses a set of upper die, lower die, cavity inner block and mould core etc.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a nested aluminum profile extrusion mold. Background Technology

[0002] Aluminum profile extrusion die (hereinafter referred to as extrusion die) is the core tooling in the aluminum profile production process. It uses a specific cavity structure and shape to "shape" the high-temperature softened aluminum billet (aluminum alloy rod) under the high pressure of the extruder, and finally obtain aluminum profiles with a predetermined cross-sectional shape (such as door and window profiles, industrial frames, heat sinks, etc.).

[0003] Common extrusion dies typically include an upper die and a lower die, which are connected by screws. The upper die surface is provided with a flow diversion hole and a die core, which is integrated with the upper die. The lower die surface has a cavity, and the shape of the cavity determines the shape of the cross surface of the extruded aluminum profile. Because the die core and upper die are integrated, and the cavity is integrated with the lower die, the die core and cavity will wear out after prolonged use, which will affect the quality of the extruded aluminum profile. Existing basic dies cannot simply replace the cavity and die core; if the wear is severe, the entire die needs to be replaced, which is costly. Therefore, a nested aluminum profile extrusion die is proposed to solve the above problems. Utility Model Content

[0004] Based on the above description, this utility model provides a nested aluminum profile extrusion die to solve the problem that the entire die needs to be replaced after the die core and cavity of a traditional extrusion die are severely worn.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a nested aluminum profile extrusion die, comprising: an upper die, a lower die, an inner block of the cavity and a die core; The lower mold is provided at the bottom of the upper mold, and a cavity block is provided between the upper mold and the lower mold. A mold core is provided inside the cavity block, and the mold core is connected to the upper mold by a connector.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the upper mold includes an upper mold body, a flow diversion hole is provided at the center of the upper surface of the upper mold body, a first mounting groove is provided at the center of the lower surface of the upper mold body, and a plurality of connecting threaded holes are provided along the outer edge of the first mounting groove, the plurality of connecting threaded holes being distributed in a ring at equal intervals.

[0008] Furthermore, the inner diameter of the first mounting groove is larger than the diameter of the diversion hole, and a positioning blind hole is provided at the center of the upper surface of the first mounting groove. The positioning blind hole is a prism groove, and a threaded blind hole is provided on the top wall of the positioning blind hole groove.

[0009] Furthermore, a plurality of first positioning half-holes are provided on the inner circumferential surface of the first mounting groove, and the plurality of first positioning half-holes are distributed in a ring at equal intervals.

[0010] Furthermore, the lower mold includes a lower mold body, and a second mounting groove with the same inner diameter as the first mounting groove is provided at the center of the upper surface of the lower mold body. A plurality of connecting holes are provided on the upper surface of the lower mold body along the outer edge of the second mounting groove. The plurality of connecting holes are distributed in a ring at equal intervals and correspond to the connecting threaded hole. A connecting screw is provided below the connecting hole, passing through the connecting hole and threadedly connected to the connecting threaded hole.

[0011] Furthermore, the upper surface of the lower mold body is provided with a plurality of second positioning half holes along the outer edge of the second mounting groove. The plurality of second positioning half holes are distributed in a ring at equal intervals and correspond to the first positioning half hole. The second positioning half hole and the first positioning half hole form a half frustum hole. The second mounting groove and the first mounting groove cooperate with each other to form a mounting cavity.

[0012] Furthermore, the lower surface of the lower mold body is provided with a discharge hole and a plurality of fastening threaded holes that communicate with the second mounting groove. The plurality of fastening threaded holes correspond to the plurality of second positioning half holes and are interconnected. The lower part of the lower mold body is provided with fastening screws that are adapted to the fastening threaded holes and extend into the second positioning half holes.

[0013] Furthermore, the cavity block includes a block disposed inside the mounting cavity. Multiple third positioning half holes are provided on the circumferential surface of the block. The third positioning half holes cooperate with half of the frustum hole to form a complete frustum hole. A frustum positioning block is disposed inside the frustum hole, which is in close contact with the upper surface of the fastening screw. The frustum positioning block is in close contact with the inner wall of the frustum hole.

[0014] Furthermore, a material collection hole and a molding hole are respectively provided at the center of the upper and lower surfaces of the block, and the material collection hole and the molding hole are interconnected.

[0015] Furthermore, the mold core includes a mold core body, a connecting block is provided on the top of the mold core body, the connecting block extends into the interior of the locking blind hole and is adapted to the locking blind hole, the lower surface of the mold core body is provided with a connecting through hole penetrating the mold core body and the connecting block, the connecting member includes a fixing screw, the fixing screw is provided below the mold core body, and after penetrating the connecting through hole, it is threadedly connected to the threaded blind hole.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: 1. This utility model sets up components such as an upper mold, a lower mold, a cavity block, and a mold core. Through the cooperation between the upper and lower molds, the cavity block can be fixed between the upper and lower molds, and the mold core is connected to the upper mold through a connector, thereby enabling the upper mold, lower mold, cavity block, and mold core to be disassembled and separated. 2. By setting up the upper and lower molds, the cavity block, the frustum positioning block, and the fastening screws, the cavity block is fully fixed, making it stable when fixed between the upper and lower molds, while also facilitating the replacement of the cavity block. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a nested aluminum profile extrusion die provided in this embodiment of the present invention; Figure 2 for Figure 1 Structural sectional view; Figure 3 for Figure 2 Another structural diagram from a different perspective; Figure 4 This is a schematic diagram of the upper mold in an embodiment of the present invention; Figure 5 for Figure 4 Another structural diagram from a different perspective; Figure 6 This is a schematic diagram of the lower mold in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the cavity block in an embodiment of the present invention; Figure 8 for Figure 7 Another structural diagram from a different perspective; Figure 9 This is a schematic diagram of the mold core structure in an embodiment of this utility model; Figure 10 This is a schematic diagram of the structure of the frustum positioning block in an embodiment of the present invention; The attached diagram lists the components represented by each number as follows: 1. Upper mold; 11. Upper mold body; 12. Diverter hole; 13. First mounting groove; 14. Connecting threaded hole; 15. First positioning half hole; 16. Blind hole for locking; 2. Lower mold; 21. Lower mold body; 22. Second mounting groove; 23. Discharge hole; 24. Connecting hole; 25. Second positioning half hole; 26. Fastening threaded hole; 3. Cavity inner block; 31. Block body; 32. Third positioning half hole; 33. Material collection hole; 34. Molding hole; 4. Mold core; 41. Mold core body; 42. Connecting block; 43. Connecting through hole; 5. Frustum positioning block; 6. Fastening screw; 7. Fixing screw. Detailed Implementation

[0018] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0020] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0021] Please see Figures 1-5 A nested aluminum profile extrusion die, characterized in that it comprises: an upper die 1, a lower die 2, a cavity inner block 3, and a die core 4; The bottom end of the upper mold 1 is provided with a lower mold 2. The upper mold 1 includes an upper mold body 11. A flow diversion hole 12 is provided at the center of the upper surface of the upper mold body 11. A first mounting groove 13 is provided at the center of the lower surface of the upper mold body 11. A plurality of connecting threaded holes 14 are provided along the outer edge of the first mounting groove 13. The plurality of connecting threaded holes 14 are distributed in a ring at equal intervals. The inner diameter of the first mounting groove 13 is larger than the diameter of the diversion hole 12. A locking blind hole 16 is provided at the center of the upper surface of the first mounting groove 13. The locking blind hole 16 is a prism groove. A threaded blind hole is provided on the top wall of the locking blind hole 16. A plurality of first positioning half holes 15 are provided on the circumferential surface of the first mounting groove 13. The plurality of first positioning half holes 15 are distributed in a ring at equal intervals. Based on the above, the connection threaded hole 14 allows the lower mold 2 to be connected to the upper mold 1 by screws. After the two molds are connected, the first mounting groove 13 provides sufficient space for the installation of the cavity block 3. The locking blind hole 16 cooperates with the mold core 4 to limit the position of the mold core 4.

[0022] like Figure 2 , Figure 3 as well as Figure 6 As shown, the lower mold 2 includes a lower mold body 21. A second mounting groove 22 with the same inner diameter as the first mounting groove 13 is provided at the center of the upper surface of the lower mold body 21. A plurality of connecting holes 24 are provided on the upper surface of the lower mold body 21 along the outer edge of the second mounting groove 22. The plurality of connecting holes 24 are distributed in a ring at equal intervals and correspond to the connecting threaded hole 14. A connecting screw is provided below the connecting hole 24, which passes through the connecting hole 24 and is threaded to the connecting threaded hole 14. The upper surface of the lower mold body 21 is provided with a plurality of second positioning half holes 25 along the outer edge of the second mounting groove 22. The plurality of second positioning half holes 25 are distributed in a ring at equal intervals and correspond to the first positioning half hole 15. The second positioning half hole 25 and the first positioning half hole 15 form a half frustum hole. The second mounting groove 22 and the first mounting groove 13 cooperate with each other to form a mounting cavity. The lower surface of the lower mold body 21 is provided with a discharge hole 23 and a plurality of fastening thread holes 26 that are connected to the second mounting groove 22. The plurality of fastening thread holes 26 correspond to the plurality of second positioning half holes 25 and are interconnected. The lower part of the lower mold body 21 is provided with fastening screws 6 that are adapted to the fastening thread holes 26 and extend into the second positioning half holes 25. Based on the above, after the lower mold 2 and the upper mold 1 are connected to each other, the first mounting groove 13 and the second mounting groove 22 cooperate with each other to form a mounting cavity. The mounting cavity provides sufficient space for the installation of the inner block 3. The fastening threaded hole 26 cooperates with the fastening screw 6, so that the fastening screw 6 can be threadedly connected to the fastening threaded hole 26 and can extend into the interior of the second positioning half hole 25.

[0023] like Figure 2 , Figure 3 , Figure 7 , Figure 8 as well as Figure 10 As shown, a cavity block 3 is provided between the upper mold 1 and the lower mold 2. The cavity block 3 includes a block 31 disposed inside the mounting cavity. Multiple third positioning half holes 32 are provided on the circumferential surface of the block 31. The third positioning half holes 32 cooperate with half of the frustum hole to form a complete frustum hole. A frustum positioning block 5 is provided inside the frustum hole, which is in close contact with the upper surface of the fastening screw 6. The frustum positioning block 5 is in close contact with the inner wall of the frustum hole. The block 31 has a material collection hole 33 and a molding hole 34 at the center of the upper and lower surfaces, respectively, and the material collection hole 33 and the molding hole 34 are interconnected. Based on the above, the setting of the material collection hole 33 allows the heated and softened aluminum billet to gather together and be discharged from the plastic hole 34. The discharge process is the plastic process. The third positioning half hole 32 cooperates with the first positioning half hole 15 and the second positioning half hole 25 to form a complete frustum hole. After the frustum positioning block 5 is inserted into the inside of the frustum hole, the fastening screw 6 is tightened so that the fastening screw pushes the frustum positioning block 5 to fit tightly against the inner wall of the frustum hole, thereby achieving the effect of fixing the inner block 3 of the cavity. The setting of the frustum positioning block 5 and the fastening screw 6 not only makes the inner block 3 of the cavity easy to replace, but also increases its stability.

[0024] like Figure 2 , Figure 3 as well as Figure 9 As shown, a mold core 4 is provided inside the cavity block 3, and the mold core 4 is connected to the upper mold 1 by a connector; The mold core 4 includes a mold core body 41. A connecting block 42 is provided on the top of the mold core body 41. The connecting block 42 extends into the interior of the locking blind hole 16 and is adapted to the locking blind hole 16. A connecting through hole 43 is provided on the lower surface of the mold core body 41, penetrating the mold core body 41 and the connecting block 42. The connector includes a fixing screw 7. The fixing screw 7 is located below the mold core body 41 and is threaded into the threaded blind hole after penetrating the connecting through hole 43. Based on the above, the core body 41 is connected to the upper mold 1 by the cooperation between the fixing screw 7 and the connecting block 42. At this time, the connecting block 42 is inserted into the inside of the locking blind hole 16. The core 4 is made by the cooperation between the fixing screw 7 and the threaded blind hole, so that the core 4 can be disassembled and replaced after severe wear.

[0025] In summary, this extrusion die, by setting up a modular upper die 1, lower die 2, cavity block 3, and die core 4, and by designing that the die core 4 and cavity block 3 can be replaced independently, when both are worn, there is no need to replace the entire die set, only the worn parts need to be replaced, reducing material costs by 60%-70%, and shortening the replacement time of a single cavity block or die core to 15-20 minutes, which is more than 80% more efficient than traditional die replacement. By replacing the cavity inner block 3 with different cross sections and the matching mold core 4, the same set of upper and lower molds can produce aluminum profiles with various cross sections, reducing the amount of mold reserves. Furthermore, the extrusion mold uses a frustum positioning block 5 to engage with the conical surface of the positioning half hole, and with the axial locking of the fastening screw, the radial positioning accuracy of the cavity inner block 3 can reach ±0.01mm, ensuring that the profile cross-sectional dimensions are sufficiently stable.

[0026] The assembly process is as follows: Insert the connecting block 42 of the mold core 4 into the inside of the locking blind hole 16 of the upper mold 1, insert the fixing screw 7 from the bottom of the mold core 4 and tighten it to complete the fixing of the mold core 4 and the upper mold 1; Place the cavity block 3 into the second mounting groove 22 of the lower mold 2, ensuring that the third positioning half hole 32 and the second positioning half hole 25 are aligned with each other; Close the upper mold 1 so that the first mounting groove 13 and the second mounting groove 22 are closed to form a mounting cavity, and the upper and lower molds are pre-fixed by connecting screws; Insert the frustum positioning block 5 into the assembled frustum hole, tighten the fastening screw 6 from the bottom of the lower mold 2, and push the conical surface of the frustum positioning block 5 to fit tightly against the hole wall to lock the block 3 inside the cavity. Finally, tighten the connecting screws of the upper and lower molds to complete the overall assembly.

[0027] Working principle High-temperature aluminum billet (temperature 450-500℃) is pressed into the interior of the diversion hole 12 of the upper die 1 by an extruder. After diversion, it enters the material collection hole 33 of the cavity block. It is squeezed and shaped in the gap between the die core 4 and the shaping hole 34, and finally extruded from the discharge hole 23 of the lower die 2 to form an aluminum profile with the target cross section. When the mold core 4 or the cavity block 3 is worn, the assembly process can be reversed to replace them individually.

[0028] 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, improvements, etc., 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 nested aluminum profile extrusion die, characterized in that, include: Upper mold (1), lower mold (2), cavity inner block (3) and mold core (4); The bottom end of the upper mold (1) is provided with a lower mold (2), and a cavity block (3) is provided between the upper mold (1) and the lower mold (2). A mold core (4) is provided inside the cavity block (3), and the mold core (4) is connected to the upper mold (1) by a connector.

2. The nested aluminum profile extrusion die according to claim 1, characterized in that, The upper mold (1) includes an upper mold body (11). A diversion hole (12) is provided at the center of the upper surface of the upper mold body (11). A first mounting groove (13) is provided at the center of the lower surface of the upper mold body (11). A plurality of connecting threaded holes (14) are provided along the outer edge of the first mounting groove (13). The plurality of connecting threaded holes (14) are distributed in a ring at equal intervals.

3. The nested aluminum profile extrusion die according to claim 2, characterized in that, The inner diameter of the first mounting groove (13) is larger than the diameter of the diversion hole (12). A locking blind hole (16) is provided at the center of the upper surface of the first mounting groove (13). The locking blind hole (16) is a prism groove. A threaded blind hole is provided on the top wall of the locking blind hole (16).

4. The nested aluminum profile extrusion die according to claim 3, characterized in that, The first mounting groove (13) has a plurality of first positioning half holes (15) on its inner circumferential surface, and the plurality of first positioning half holes (15) are distributed in a ring at equal intervals.

5. The nested aluminum profile extrusion die according to claim 4, characterized in that, The lower mold (2) includes a lower mold body (21). A second mounting groove (22) with the same inner diameter as the first mounting groove (13) is provided at the center of the upper surface of the lower mold body (21). A plurality of connecting holes (24) are provided on the upper surface of the lower mold body (21) along the outer edge of the second mounting groove (22). The plurality of connecting holes (24) are distributed in a ring at equal intervals and correspond to the connecting threaded hole (14). A connecting screw is provided below the connecting hole (24) and passes through the connecting hole (24) and is threaded to the connecting threaded hole (14).

6. The nested aluminum profile extrusion die according to claim 5, characterized in that, The upper surface of the lower mold body (21) is provided with a plurality of second positioning half holes (25) along the outer edge of the second mounting groove (22). The plurality of second positioning half holes (25) are distributed in a ring at equal intervals and correspond to the first positioning half hole (15). The second positioning half hole (25) and the first positioning half hole (15) form a half frustum hole. The second mounting groove (22) and the first mounting groove (13) cooperate with each other to form a mounting cavity.

7. The nested aluminum profile extrusion die according to claim 6, characterized in that, The lower surface of the lower mold body (21) is provided with a discharge hole (23) communicating with the second mounting groove (22) and a plurality of fastening thread holes (26). The plurality of fastening thread holes (26) correspond to the plurality of second positioning half holes (25) and are interconnected. The lower part of the lower mold body (21) is provided with fastening screws (6) that are adapted to the fastening thread holes (26) and extend into the second positioning half holes (25).

8. The nested aluminum profile extrusion die according to claim 7, characterized in that, The cavity block (3) includes a block (31) disposed inside the mounting cavity. Multiple third positioning half holes (32) are provided on the circumferential surface of the block (31). The third positioning half holes (32) cooperate with half of the frustum hole to form a complete frustum hole. A frustum positioning block (5) is disposed inside the frustum hole and is in close contact with the upper surface of the fastening screw (6). The frustum positioning block (5) is in close contact with the inner wall of the frustum hole.

9. The nested aluminum profile extrusion die according to claim 8, characterized in that, The block (31) has a material collection hole (33) and a molding hole (34) at the center of the upper and lower surfaces, respectively, and the material collection hole (33) and the molding hole (34) are interconnected.

10. The nested aluminum profile extrusion die according to claim 3, characterized in that, The mold core (4) includes a mold core body (41), and a connecting block (42) is provided on the top of the mold core body (41). The connecting block (42) extends into the interior of the locking blind hole (16) and is adapted to the locking blind hole (16). A connecting through hole (43) is provided on the lower surface of the mold core body (41) through the mold core body (41) and the connecting block (42). The connecting member includes a fixing screw (7). The fixing screw (7) is located below the mold core body (41) and is threaded to the threaded blind hole after passing through the connecting through hole (43).

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