Aluminum alloy extrusion die

Abstract

The utility model discloses an aluminum alloy extrusion die, which belongs to the technical field of aluminum alloy profile production and comprises an upper die and a lower die. The upper die is further provided with a containing groove used for containing the lower die, a plurality of positioning inserting grooves are evenly formed in the inner wall of the containing groove in a circumferential array mode at equal intervals, and a plurality of positioning inserting blocks which are in one-to-one correspondence with the positioning inserting grooves and matched with the positioning inserting grooves in an inserted mode are fixedly installed on the outer wall of the lower die. A quick dismounting mechanism is arranged on the side wall of the upper die and comprises clamping assemblies and a driving assembly, the multiple clamping assemblies are distributed on the outer edge of the upper die at equal intervals in a circumferential array mode, and the driving assembly is arranged on the outer side of the upper die and used for controlling all the clamping assemblies to be synchronously unlocked and locked. By means of the mode, an operator only needs to rotate the pressing ring to make the pressing ring move in the axial direction of the upper die to control the clamping connection relation between the clamping blocks and the clamping grooves, the upper die and the lower die can be rapidly disassembled and assembled, the multiple matched clamping blocks and the multiple matched clamping grooves form multiple locking point positions, and the upper die and the lower die are stably locked and connected.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy profile production technology, specifically to an aluminum alloy extrusion die. Background Technology

[0002] Aluminum alloy profiles are widely used in various industries such as construction, transportation, automobiles, and machinery due to their excellent performance.

[0003] Chinese patent CN217451541U discloses an extrusion die for hollow square aluminum alloy profiles, including an upper die, a lower die, an upper die sleeve, a lower die sleeve, a protrusion, and a die core. The extrusion die is a split design, which reduces the amount of die material required and makes maintenance convenient. When some components are damaged, they can be disassembled and replaced individually. However, the replacement of the upper and lower dies of this extrusion die is relatively inconvenient, and the limited number of locking points poses certain safety hazards.

[0004] Based on this, the present invention designs an aluminum alloy extrusion die to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an aluminum alloy extrusion die.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An aluminum alloy extrusion die includes an upper die and a lower die;

[0008] The lower die is provided with an extrusion groove for forming aluminum alloy profiles;

[0009] The upper die is provided with a diversion hole for injecting raw material into the extrusion groove; the die core is fixedly connected to the upper die and extends into the extrusion groove of the lower die. The extrusion groove and the die core cooperate to form a forming cavity for extruding aluminum profiles.

[0010] The upper mold is also provided with a receiving groove for accommodating the lower mold. The inner wall of the receiving groove is provided with multiple positioning slots evenly spaced in a circular array. The outer wall of the lower mold is fixedly installed with multiple positioning blocks that correspond one-to-one with the positioning slots and are inserted into each other.

[0011] The side wall of the upper mold is equipped with a quick-release mechanism, which includes a snap-fit ​​component and a drive component. Multiple snap-fit ​​components are distributed in a circumferential array at equal intervals along the outer edge of the upper mold. The drive component is located on the outside of the upper mold and is used to control all snap-fit ​​components to unlock and lock synchronously.

[0012] Furthermore, the snap-fit ​​assembly includes a spring, a movable groove, a pressure block, a snap-fit ​​block, and a snap-fit ​​groove. Each positioning slot has a movable groove at its bottom, and the pressure block is slidably connected to the movable groove. A snap-fit ​​groove is provided on the positioning insert corresponding to the positioning slot, and a snap-fit ​​block that engages with the snap-fit ​​groove is fixedly installed at one end of the pressure block near the receiving groove.

[0013] A spring is installed inside the movable groove. The spring is sleeved on the outside of the locking block, and the two ends of the spring are fixedly connected to the pressure block and the bottom of the movable groove, respectively.

[0014] Furthermore, the drive assembly includes a pressure ring, which is threadedly connected to the side wall of the upper mold, and is used to press the pressure block into the movable groove.

[0015] Furthermore, the end of the pressure block near the pressure ring is provided with a guide slope that matches the pressure ring, and the end of the pressure block away from the upper mold is provided with a locking plane that matches the pressure ring.

[0016] Furthermore, the lower mold is provided with a rapid cooling mechanism, and two sets of the rapid cooling mechanism are symmetrically distributed on both sides of the lower mold.

[0017] Furthermore, the rapid cooling mechanism includes a cooling pipe, an inlet pipe, an outlet pipe, and a nozzle. The cooling pipe is spirally embedded inside the lower mold, and the inlet pipe and outlet pipe are fixedly installed at both ends of the cooling pipe, respectively. The nozzle is fixedly connected to the outlet pipe.

[0018] Furthermore, the cold pipes of the two sets of rapid cooling mechanisms are installed in a staggered manner, and the cold pipes are distributed in a cylindrical shape on the outside of the extrusion groove to surround the extrusion groove.

[0019] Furthermore, the nozzle is a fan-shaped nozzle, and the nozzles of the two sets of rapid cooling mechanisms are located on both sides of the extrusion groove and are arranged towards the extrusion groove.

[0020] Compared with the prior art, the advantages of this utility model are as follows: 1. The operator only needs to rotate the pressure ring to move it along the axial direction of the upper mold to control the engagement relationship between the card block and the card slot, so as to realize the quick assembly and disassembly of the upper mold and the lower mold, which effectively facilitates the operator's operation. In addition, multiple cooperating card blocks and card slots form multiple locking points, so that the upper mold and the lower mold are firmly locked and connected.

[0021] 2. The coolant in the cooling tank enters the cooling pipe through the inlet pipe to achieve indirect heat exchange with the aluminum profile formed in the lower mold. After the initial cooling, the water flows out through the outlet pipe and is sprayed onto the aluminum profile extruded from the lower mold through the nozzle for direct heat exchange. The cooling water after direct heat exchange flows back into the cooling tank. The combination of indirect heat exchange and direct heat exchange achieves rapid cooling of the aluminum profile, making full use of the cooling water and effectively improving the heat exchange efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This utility model relates to a three-dimensional aluminum alloy extrusion die. Figure 1 ;

[0024] Figure 2 This utility model relates to a three-dimensional aluminum alloy extrusion die. Figure 2 ;

[0025] Figure 3 This is a front view of an aluminum alloy extrusion die according to the present invention;

[0026] Figure 4 This is a 3D view after the upper and lower molds have been separated.

[0027] Figure 5 This is a half-section perspective view of the lower mold;

[0028] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0029] Figure 7 This is a schematic diagram of the cooling pipe structure.

[0030] The labels in the diagram represent:

[0031] 1. Upper mold; 11. Diverter hole; 12. Receiving groove; 13. Positioning slot; 2. Lower mold; 21. Extrusion groove; 22. Positioning insert; 3. Mold core; 4. Quick disassembly and assembly mechanism; 41. Pressure ring; 42. Spring; 43. Movable groove; 44. Pressure block; 441. Guide slope; 442. Locking plane; 45. Locking block; 46. Locking groove; 5. Rapid cooling mechanism; 51. Cooling pipe; 52. Liquid inlet pipe; 53. Liquid outlet pipe; 54. Nozzle. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0034] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7 An aluminum alloy extrusion die includes an upper die 1 and a lower die 2;

[0035] The lower die 2 is provided with an extrusion groove 21 for forming aluminum alloy profiles;

[0036] The upper mold 1 is provided with a diversion hole 11 for injecting raw material into the extrusion groove 21; the mold core 3 is fixedly connected to the upper mold 1 and extends into the extrusion groove 21 of the lower mold 2. The extrusion groove 21 and the mold core 3 cooperate to form a forming cavity for extruding aluminum profiles.

[0037] The upper mold 1 is also provided with a receiving groove 12 for accommodating the lower mold 2, so that the upper mold 1 and the lower mold 2 can be slidably inserted into each other along the axial direction;

[0038] The inner wall of the receiving groove 12 is arranged in a circular array with multiple positioning slots 13 at equal intervals. The outer wall of the lower mold 2 is fixedly installed with multiple positioning blocks 22 that correspond one-to-one with the positioning slots 13 and are inserted into each other.

[0039] The side wall of the upper mold 1 is provided with a quick assembly / disassembly mechanism 4 for fixing the lower mold 2 in the receiving groove 12;

[0040] The quick assembly / disassembly mechanism 4 includes a spring 42, a movable groove 43, a pressure block 44, a locking block 45, and a locking groove 46. Each positioning slot 13 has a movable groove 43 at its bottom, and the pressure block 44 is slidably connected to the movable groove 43. The positioning insert 22 corresponding to the positioning slot 13 has a locking groove 46, and the end of the pressure block 44 near the receiving groove 12 is fixedly installed with a locking block 45 that engages with the locking groove 46.

[0041] A spring 42 is installed inside the movable groove 43. The spring 42 is sleeved on the outside of the locking block 45. The two ends of the spring 42 are fixedly connected to the pressure block 44 and the bottom of the movable groove 43, respectively.

[0042] The quick assembly / disassembly mechanism 4 also includes a pressure ring 41, which is threadedly connected to the side wall of the upper mold 1. Rotating the pressure ring 41 allows it to move axially along the upper mold 1. The pressure ring 41 is used to press the pressure block 44 into the movable groove 43.

[0043] The end of the pressure block 44 near the pressure ring 41 is provided with a guide slope 441 that cooperates with the pressure ring 41, and the end of the pressure block 44 away from the upper mold 1 is provided with a locking plane 442 that cooperates with the pressure ring 41.

[0044] In this invention, the positioning block 22 of the lower mold 2 is aligned with the positioning slot 13 and inserted, so that the lower mold 2 is inserted into the receiving groove 12 of the upper mold 1. The pressure ring 41 is rotated to move the pressure ring 41 closer to the pressure block 44. The pressure ring 41 presses all the pressure blocks 44 into the movable groove 43 through the guide inclined surface 441 until the locking plane 442 of the pressure block 44 abuts against the inner side of the pressure ring 41, so that the locking block 45 is completely locked into the locking groove 46, realizing the quick locking connection between the upper mold 1 and the lower mold 2, and multiple cooperating locking blocks... Block 45 and slot 46 form multiple locking points, which securely lock the upper mold 1 and lower mold 2 together. When the lower mold 2 needs to be replaced, rotating the pressure ring 41 moves the pressure ring 41 away from the pressure block 44. The pressure block 44 is reset under the action of the spring 42, which causes the locking block 45 to disengage from the slot 46, thus quickly unlocking the upper mold 1 and lower mold 2. The operator only needs to rotate the pressure ring 41 to control the pressure ring 41 to move along the axial direction of the upper mold 1, which can quickly disassemble and assemble the upper mold 1 and lower mold 2, effectively facilitating the operator's operation.

[0045] The lower mold 2 is provided with a rapid cooling mechanism 5, and two sets of rapid cooling mechanisms 5 are provided and symmetrically distributed on both sides of the lower mold 2;

[0046] The rapid cooling mechanism 5 includes a cooling pipe 51, an inlet pipe 52, an outlet pipe 53, and a nozzle 54. The cooling pipe 51 is spirally embedded inside the lower mold 2. The inlet pipe 52 and the outlet pipe 53 are fixedly installed at both ends of the cooling pipe 51, and the nozzle 54 is fixedly connected to the outlet pipe 53. The coolant in the cooling pool enters the cooling pipe 51 through the inlet pipe 52 to achieve indirect heat exchange with the aluminum profile formed in the lower mold 2. After the initial cooling, the water flows out through the outlet pipe 53 and is sprayed onto the aluminum profile extruded from the lower mold 2 through the nozzle 54 for direct heat exchange. The cooling water after direct heat exchange flows back into the cooling pool. The combination of indirect heat exchange and direct heat exchange achieves rapid cooling of the aluminum profile, fully utilizes the cooling water, and effectively improves the heat exchange efficiency.

[0047] The cold pipes 51 of the two sets of rapid cooling mechanisms 5 are installed in a staggered manner, and the cold pipes 51 are distributed in a cylindrical shape on the outside of the extrusion groove 21 to surround the extrusion groove 21.

[0048] The nozzle 54 is a fan-shaped nozzle. The nozzles 54 of the two sets of rapid cooling mechanisms 5 are located on both sides of the extrusion groove 21 and are set towards the extrusion groove 21 to uniformly cool the profile extruded from the molding cavity.

[0049] Both the upper mold 1 and the lower mold 2 are made of ceramic matrix composite material, which gives the upper mold 1 and the lower mold 2 excellent properties such as high temperature resistance, high strength and rigidity, relatively light weight and wear resistance. They are suitable for continuous extrusion molding of aluminum profiles and reduce production costs.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An aluminum alloy extrusion die, comprising an upper die (1) and a lower die (2), characterized in that: The lower die (2) is provided with an extrusion groove (21) for forming aluminum alloy profiles; The upper die (1) is provided with a diversion hole (11) for injecting raw material into the extrusion groove (21); the die core (3) is fixedly connected to the upper die (1) and extends into the extrusion groove (21) of the lower die (2). The extrusion groove (21) and the die core (3) cooperate to form a forming cavity for extruding aluminum profiles. The upper mold (1) is also provided with a receiving groove (12) for accommodating the lower mold (2). The inner wall of the receiving groove (12) is provided with multiple positioning slots (13) evenly spaced in a circular array. The outer wall of the lower mold (2) is fixedly installed with multiple positioning blocks (22) that correspond one-to-one with the positioning slots (13) and are inserted into each other. The side wall of the upper mold (1) is provided with a quick disassembly mechanism (4). The quick disassembly mechanism (4) includes a snap-fit ​​component and a drive component. Multiple snap-fit ​​components are distributed in a circumferential array at equal intervals along the outer edge of the upper mold (1). The drive component is located on the outside of the upper mold (1) and is used to control all snap-fit ​​components to unlock and lock synchronously.

2. The aluminum alloy extrusion die according to claim 1, characterized in that, The snap-fit ​​assembly includes a spring (42), a movable groove (43), a pressure block (44), a snap-fit ​​block (45), and a snap-fit ​​groove (46). Each positioning slot (13) has a movable groove (43) at its bottom, and the pressure block (44) is slidably connected to the movable groove (43). The positioning insert (22) corresponding to the positioning slot (13) has a snap-fit ​​groove (46), and the pressure block (44) is fixedly installed with a snap-fit ​​block (45) that engages with the snap-fit ​​groove (46) at one end near the receiving groove (12). A spring (42) is provided inside the movable groove (43). The spring (42) is sleeved on the outside of the locking block (45). The two ends of the spring (42) are fixedly connected to the pressure block (44) and the bottom of the movable groove (43), respectively.

3. The aluminum alloy extrusion die according to claim 2, characterized in that, The drive assembly includes a pressure ring (41), which is threaded to the side wall of the upper mold (1). The pressure ring (41) is used to press the pressure block (44) into the movable groove (43).

4. The aluminum alloy extrusion die of claim 3, wherein, The pressure block (44) is provided with a guide slope (441) that matches the pressure ring (41) at one end, and a locking plane (442) that matches the pressure ring (41) is provided at the other end of the pressure block (44) that is away from the upper mold (1).

5. The aluminum alloy extrusion die according to claim 4, characterized in that, The lower mold (2) is provided with a rapid cooling mechanism (5), and two sets of rapid cooling mechanisms (5) are provided and symmetrically distributed on both sides of the lower mold (2).

6. The aluminum alloy extrusion die according to claim 5, characterized in that, The rapid cooling mechanism (5) includes a cooling pipe (51), an inlet pipe (52), an outlet pipe (53), and a nozzle (54). The cooling pipe (51) is spirally embedded inside the lower mold (2). The inlet pipe (52) and the outlet pipe (53) are fixedly installed at both ends of the cooling pipe (51), and the nozzle (54) is fixedly connected to the outlet pipe (53).

7. The aluminum alloy extrusion die of claim 6, wherein, The cold pipes (51) of the two sets of rapid cooling mechanisms (5) are installed in a staggered manner, and the cold pipes (51) are distributed in a cylindrical shape on the outside of the extrusion groove (21) to surround the extrusion groove (21).

8. The aluminum alloy extrusion die according to claim 7, characterized in that, The nozzle (54) is a fan-shaped nozzle, and the nozzles (54) of the two sets of rapid cooling mechanisms (5) are located on both sides of the extrusion groove (21) and are arranged towards the extrusion groove (21).

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