Aluminum alloy profile extrusion equipment for air purifier

Abstract

The invention relates to the field of extrusion equipment, and discloses air purifier aluminum alloy profile extrusion equipment which comprises a supporting base, a mold, an extrusion driving mechanism, a transmission part, a swing heat dissipation mechanism and a knocking mechanism. The mold and the extrusion driving mechanism are respectively and correspondingly assembled on the supporting seat; the swinging heat dissipation mechanism is rotationally arranged on the supporting seat; when the extrusion driving mechanism moves towards the direction of the mold, the swing heat dissipation mechanism is driven by the transmission of the transmission part to do intermittent action so that the swing heat dissipation mechanism can be attached to the surface of the mold, and in the process, the swing heat dissipation mechanism and the mold conduct heat to dissipate heat. Circulating heat dissipation is conducted on the mold through the swing heat dissipation mechanism, the risk that the mold generates thermal fatigue cracks is reduced, and the service life of the mold is prolonged; the knocking mechanism can enable the section bar to be more compact, metal flow to be more uniform, die abrasion is reduced, thermal stress is relieved, the surface quality and size precision of the section bar are improved, and the rejection rate is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of extrusion equipment, and more specifically, it relates to an extrusion equipment for aluminum alloy profiles of air purifiers. Background Art

[0002] An air purifier, also known as an "air cleaner" or air freshener, refers to a product that can adsorb, decompose or transform various air pollutants and effectively improve the air cleanliness. It mainly includes household and commercial air purifiers for removing indoor air pollution. The air purifier includes aluminum alloy profile components, and the aluminum alloy profiles are usually formed by extruding heated aluminum bars through extrusion equipment.

[0003] When the existing extrusion equipment die is in use, since it needs to be in direct contact with the high-temperature aluminum bar blank, the surface temperature will rise sharply. If the die is in such a high-temperature environment for a long time, thermal fatigue cracks are very likely to appear on its surface. As the die continues to be used, these cracks will continue to extend and expand. Once they develop to a certain extent, the die may crack. Once the die cracks, it will lose its normal function in advance, resulting in a significant reduction in its service life. Summary of the Invention

[0004] The present invention provides an extrusion equipment for aluminum alloy profiles of air purifiers, which solves the technical problem that in the extrusion equipment for aluminum alloy profiles of air purifiers in the related art, if the die is in such a high-temperature environment for a long time, it will crack and its life will be reduced.

[0005] The present invention provides an extrusion equipment for aluminum alloy profiles of air purifiers, including a support base, a die, an extrusion driving mechanism, a transmission member, a swing heat dissipation mechanism, and a knocking mechanism;

[0006] The die and the extrusion driving mechanism are respectively assembled on the support base;

[0007] The swing heat dissipation mechanism is rotatably arranged on the support base;

[0008] When the extrusion driving mechanism moves towards the die, through the transmission of the transmission member, the swing heat dissipation mechanism is driven to perform intermittent actions, so that it fits with the die surface. During this process, the swing heat dissipation mechanism conducts heat with the die for heat dissipation. When the swing heat dissipation mechanism separates from the die, it dissipates heat by itself. At the same time, when the swing heat dissipation mechanism acts, it drives the knocking mechanism to intermittently knock the die.

[0009] As a further optimized solution of the present invention, the extrusion driving mechanism includes a hydraulic cylinder and a push plate. The hydraulic cylinder is installed on the support base, and the driving end of the hydraulic cylinder is fixedly connected to the push plate.

[0010] As a further optimized solution of the present invention, the transmission member includes an incomplete rack and a transmission gear. The teeth on the incomplete rack are divided into multiple groups, and there are gaps between each group of teeth. One end of the incomplete rack is fixedly connected to the push plate, and the incomplete rack is in transmission cooperation with the transmission gear.

[0011] As a further optimized solution of the present invention, the swing heat dissipation mechanism includes a rotating rod, a hollow plate and a torsion spring. One end of the rotating rod rotates into the inside of the support seat and is rotatably connected to the support seat through a one-way rotating shaft. The transmission gear is fixedly sleeved on the rotating rod and is connected to the support seat through a torsion spring. The inside of the hollow plate is filled with a coolant.

[0012] As a further optimized solution of the present invention, a spoiler is slidably arranged inside the hollow plate, and the spoiler is provided with mesh holes.

[0013] As a further optimized solution of the present invention, the knocking mechanism includes a connecting rod, a moving rod, a mounting rod, a notched ring shell, a central rod and a knocking member. One end of the moving rod slides into the inside of the hollow plate and is fixedly connected to the spoiler. The other end of the moving rod is connected to the mounting rod through the connecting rod. The notched ring shell is mounted on the mounting rod. The notched ring shell forms openings on one side and the bottom. The central rod is mounted in the middle of the notched ring shell and cooperates with the knocking member.

[0014] As a further optimized solution of the present invention, the knocking member includes a round block. The round block is rotatably arranged on the central rod and is rotatably sleeved with the notched ring shell. A plurality of placement grooves are formed inside the round block, and the placement grooves form openings on the outer periphery of the round block. A knocking rod is slidably sleeved inside the placement groove.

[0015] As a further optimized solution of the present invention, a magnetic block is provided at one end of the knocking rod close to the central rod, and an attracting magnetic block and a repelling magnetic block are inlaid on the outer periphery of the central rod close to the opening of the notched ring shell.

[0016] As a further optimized solution of the present invention, a guide rail is provided on the support seat, and the sliding table of the guide rail is connected to the incomplete rack.

[0017] As a further optimized solution of the present invention, the connecting rod is connected to the hollow plate through a return spring.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. An extrusion device for aluminum alloy profiles of an air purifier according to the present invention conducts heat through the cooperation of a swing heat dissipation mechanism and a mold, dissipates heat from the mold in a timely manner, and reduces the risk of thermal fatigue cracks in the mold caused by long-term exposure to high temperatures. During the extrusion process, the mold is in direct contact with the high-temperature aluminum billet, and the temperature rises sharply. The coolant of the swing heat dissipation mechanism can effectively absorb heat. When the swing heat dissipation mechanism separates from the mold, it dissipates heat by itself. Through such cyclic heat dissipation, the possibility of cracks or even cracking in the mold caused by high temperatures is greatly reduced, thereby extending the service life of the mold.

[0020] 2. An extrusion device for aluminum alloy profiles of an air purifier according to the present invention is provided with a knocking mechanism. During the extrusion process, the vibration generated by knocking can promote the more uniform distribution and tighter filling of the aluminum alloy material in the mold, making the profile more compact, improving its internal structural strength and stability; it helps the metal flow more evenly, reduces metal retention and accumulation caused by mold design, material properties or uneven heating, and ensures uniform quality of each part of the profile; it can loosen the metal adhering to the mold surface during high-temperature extrusion, reduce mold wear and damage, which is beneficial to improving the surface quality of the profile and extending the service life of the mold; it can relieve the thermal stress generated in the mold during high-temperature operation, reduce thermal fatigue, and improve the reliability and stability of the mold; it can also make the metal better fill the detailed parts of the mold, making the surface of the profile smoother, flatter and brighter, improving the appearance quality; at the same time, it reduces the dimensional deviation caused by uneven metal flow, improves the dimensional accuracy of the profile, reduces the scrap rate, and makes the produced aluminum alloy profile more in line with the design requirements.

[0021] 3. For an extrusion device for aluminum alloy profiles of an air purifier according to the present invention, the combined use of the swing heat dissipation mechanism and the knocking mechanism is conducive to disturbing the coolant in the swing heat dissipation mechanism to increase the uniformity of its temperature and enhance the conduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a schematic diagram of the overall structure of an extrusion device for aluminum alloy profiles of an air purifier proposed by the present invention.

[0023] Figure 2 FIG. is a schematic diagram of the structure of the mold in an extrusion device for aluminum alloy profiles of an air purifier proposed by the present invention.

[0024] Figure 3 FIG. is a schematic diagram of a partial structure in an extrusion device for aluminum alloy profiles of an air purifier proposed by the present invention.

[0025] Figure 4 FIG. is a schematic diagram of the structure of the connecting rod in an extrusion device for aluminum alloy profiles of an air purifier proposed by the present invention.

[0026] Figure 5Schematic diagram of the internal structure of the hollow plate in an aluminum alloy profile extrusion device for an air purifier proposed by the present invention.

[0027] Figure 6 Schematic diagram of the structure of the incomplete rack and the transmission gear in an aluminum alloy profile extrusion device for an air purifier proposed by the present invention.

[0028] Figure 7 Schematic diagram of the side view cross-sectional structure of the round block in an aluminum alloy profile extrusion device for an air purifier proposed by the present invention.

[0029] Figure 8 It is Figure 3 The enlarged structure diagram at position A in

[0030] In the figure:

[0031] 1. Support base;

[0032] 2. Mold;

[0033] 3. Extrusion driving mechanism; 31. Hydraulic cylinder; 32. Pushing plate;

[0034] 4. Transmission part; 41. Incomplete rack; 42. Transmission gear;

[0035] 5. Swing heat dissipation mechanism; 51. Rotating rod; 52. Hollow plate; 53. Torsion spring; 54. Turbulence plate;

[0036] 6. Knocking mechanism; 61. Connecting rod; 62. Moving rod; 63. Mounting rod; 64. Notch ring shell; 65. Central rod; 66. Round block; 661. Placing groove; 67. Knocking rod; 68. Magnetic block; 69. Attracting magnetic block; 610. Repelling magnetic block; 611. Return spring. Specific implementation manners

[0037] Now, the subject matter described herein will be discussed with reference to example embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described in some examples can also be combined in other examples.

[0038] As Figures 1 to 8 shown, an aluminum alloy profile extrusion device for an air purifier according to an embodiment of the present invention includes a support base 1, a mold 2, an extrusion driving mechanism 3, a transmission part 4, a swing heat dissipation mechanism 5, and a knocking mechanism 6;

[0039] The mold 2 and the extrusion driving mechanism 3 are respectively assembled on the support base 1;

[0040] The swing heat dissipation mechanism 5 is rotatably arranged on the support base 1;

[0041] When the extrusion driving mechanism 3 moves towards the die 2, the swing heat dissipation mechanism 5 is driven by the transmission of the transmission member 4 to perform intermittent actions, so that it fits with the surface of the die 2. During this process, heat conduction occurs between the swing heat dissipation mechanism 5 and the die 2 for heat dissipation. When the swing heat dissipation mechanism 5 separates from the die 2, it dissipates heat by itself. At the same time, when the swing heat dissipation mechanism 5 acts, it drives the knocking mechanism 6 to intermittently knock the die 2.

[0042] The support base 1 serves as a basic support structure. The die 2 is used for the forming of aluminum alloy profiles. When the extrusion driving mechanism 3 works, it moves towards the die 2. The transmission member 4 drives the swing heat dissipation mechanism 5. The transmission member 4 converts the linear motion of the extrusion driving mechanism 3 into the intermittent swinging motion of the swing heat dissipation mechanism 5. The swing heat dissipation mechanism 5 is rotatably arranged on the support base 1. When it fits with the surface of the die 2, since the hollow plate 52 is filled with coolant, heat conduction will occur between the two. The heat of the die 2 is transferred to the coolant, thus realizing heat dissipation. When the swing heat dissipation mechanism 5 separates from the die 2, the coolant in the hollow plate 52 cools down, realizing its own heat dissipation. At the same time, the swing heat dissipation mechanism 5 acts to drive the knocking mechanism 6 to intermittently knock the die 2.

[0043] Timely dissipate heat from the die 2, reduce the risk of thermal fatigue cracks in the die caused by long-term exposure to high temperature environments, and extend the service life of the die; Intermittently knocking the die 2 can make the aluminum alloy profiles in the die more compact during the forming process and improve the quality of the profiles.

[0044] Specifically, the extrusion driving mechanism 3 includes a hydraulic cylinder 31 and a push plate 32. The hydraulic cylinder 31 is installed on the support base 1, and the driving end of the hydraulic cylinder 31 is fixedly connected to the push plate 32.

[0045] The hydraulic cylinder 31 in the extrusion driving mechanism 3 is installed on the support base 1. When the hydraulic cylinder 31 works, its driving end extends, driving the push plate 32 fixedly connected thereto to perform a linear motion, thereby pushing the subsequent aluminum rod towards the die 2.

[0046] Specifically, the transmission member 4 includes an incomplete rack 41 and a transmission gear 42. The teeth on the incomplete rack 41 are divided into multiple groups, and there are gaps between each group of teeth. One end of the incomplete rack 41 is fixedly connected to the push plate 32, and the incomplete rack 41 is in transmission cooperation with the transmission gear 42.

[0047] One end of the incomplete rack 41 of the transmission member 4 is fixedly connected to the push plate 32 and moves along with the linear movement of the push plate 32. The teeth on the incomplete rack 41 are divided into multiple groups with gaps between each group. When the incomplete rack 41 moves, its teeth are intermittently engaged with the transmission gear 42, and due to the intermittent engagement of the teeth, the transmission gear 42 will rotate intermittently.

[0048] Specifically, the swing heat dissipation mechanism 5 includes a rotating rod 51, a hollow plate 52 and a torsion spring 53. One end of the rotating rod 51 rotatably extends into the inside of the support seat 1 and is rotatably connected to the support seat 1 through a one-way rotating shaft (when the hollow plate 52 moves away from the mold 2, the one-way rotating shaft itself can rotate relative to each other, and when the hollow plate 52 rotates towards the mold 2, the entire one-way rotating shaft rotates along with the rotating rod 51). The transmission gear 42 is fixedly sleeved on the rotating rod 51 and is connected to the support seat 1 through a torsion spring 53. The inside of the hollow plate 52 is filled with a coolant.

[0049] One end of the rotating rod 51 of the swing heat dissipation mechanism 5 rotatably extends into the inside of the support seat 1, and the transmission gear 42 is fixedly sleeved on the rotating rod 51. When the transmission gear 42 rotates, it drives the rotating rod 51 to rotate. The rotating rod 51 is connected to the support seat 1 through a torsion spring 53, and the torsion spring 53 provides a restoring force to enable the rotating rod 51 to return to its initial position when not subjected to external forces. The inside of the hollow plate 52 is filled with a coolant. As the rotating rod 51 rotates, the hollow plate 52 will approach or move away from the mold 2 to achieve heat dissipation by contacting the mold 2 and heat dissipation by separating itself.

[0050] Specifically, a flow disturbing plate 54 is slidably arranged inside the hollow plate 52, and the flow disturbing plate 54 is provided with mesh holes.

[0051] The flow disturbing plate 54 is slidably arranged inside the hollow plate 52, and the flow disturbing plate 54 is provided with mesh holes. When the hollow plate 52 is in contact with the mold 2 for heat conduction, the coolant heats up and flows. The flow disturbing plate 54 will slide inside the hollow plate 52 under the action of the knocking mechanism 6, and the mesh holes can increase the disturbance of the coolant, making the heat exchange between the coolant and the inner wall of the hollow plate 52 and the mold 2 more sufficient.

[0052] Specifically, the knocking mechanism 6 includes a connecting rod 61, a moving rod 62, a mounting rod 63, a notched ring shell 64, a central rod 65 and a knocking member. One end of the moving rod 62 slidably extends into the inside of the hollow plate 52 and is fixedly connected to the flow disturbing plate 54. The other end of the moving rod 62 is connected to the mounting rod 63 through the connecting rod 61. The notched ring shell 64 is mounted on the mounting rod 63. The notched ring shell 64 forms openings on one side and the bottom. The central rod 65 is mounted in the middle of the notched ring shell 64 and cooperates with the knocking member.

[0053] One end of the moving rod 62 of the knocking mechanism 6 slides into the hollow plate 52 and is fixedly connected to the spoiler 54. When the spoiler 54 slides in the hollow plate 52, it drives the moving rod 62 to move. The other end of the moving rod 62 is connected to the mounting rod 63 through the connecting rod 61, so that the mounting rod 63 acts. The notched ring shell 64 is mounted on the mounting rod 63, and the central rod 65 is mounted in the middle of the notched ring shell 64. The knocking piece cooperates with the central rod 65. When the mounting rod 63 acts, it drives the knocking piece to knock on the mold 2.

[0054] Specifically, the knocking piece includes a round block 66. The round block 66 is rotatably arranged on the central rod 65 and is rotatably sleeved with the notched ring shell 64. A plurality of placement grooves 661 are formed inside the round block 66, and the placement grooves 661 form openings on the outer periphery of the round block 66. A knocking rod 67 is slidably sleeved inside the placement grooves 661.

[0055] The round block 66 of the knocking piece is rotatably arranged on the central rod 65 and is rotatably sleeved with the notched ring shell 64. A plurality of placement grooves 661 are formed inside the round block 66, and the placement grooves 661 form openings on the outer periphery of the round block 66. The knocking rod 67 is slidably sleeved inside the placement grooves 661. When the round block 66 rotates as the mounting rod 63 moves, the knocking rod 67 will slide inside the placement grooves 661 under the action of centrifugal force, and the end close to the mold 2 will extend out of the round block 66 to knock on the mold 2.

[0056] During extrusion, the following effects will occur along with knocking:

[0057] Homogenize metal flow: During the extrusion process, the metal flow may be uneven due to mold design, material properties, or uneven heating. By knocking on the mold 2, vibrations can be generated, and these vibrations can help the metal flow more evenly, reducing the phenomenon of metal retention or accumulation in the mold.

[0058] Reduce adhesion: During high-temperature extrusion, the aluminum alloy may adhere to the surface of the mold 2 due to high-temperature contact. Knocking on the mold 2 can loosen these adhered metals, reducing wear and damage to the surface of the mold 2.

[0059] Relieve thermal stress: When the mold 2 works at high temperatures, thermal stress will be generated. By knocking on the mold 2, small vibrations can be generated, thereby relieving the thermal stress inside the mold 2 and reducing the thermal fatigue of the mold 2.

[0060] Improve the quality of the profile:

[0061] Improve surface quality: The vibrations generated by knocking on the mold 2 can make the surface of the profile smoother and reduce surface roughness. This is because the vibrations can help the metal better fill the detailed parts of the mold 2.

[0062] Dimensional accuracy: Vibration can enable the metal to flow better in the mold, reduce dimensional deviations caused by uneven metal flow, and thus improve the dimensional accuracy of the profile.

[0063] Further, a magnetic block 68 is provided at one end of the knocking rod 67 close to the central rod 65. An attracting magnet block 69 and a repelling magnet block 610 are inlaid on the outer periphery of the central rod 65 close to the opening of the notched ring shell 64.

[0064] A magnetic block 68 is provided at one end of the knocking rod 67 close to the central rod 65. An attracting magnet block 69 and a repelling magnet block 610 are inlaid on the outer periphery of the central rod 65 close to the opening of the notched ring shell 64. When the round block 66 rotates, the magnetic block 68 will sequentially pass by the attracting magnet block 69 and the repelling magnet block 610. When passing by the repelling magnet block 610, the magnetic block 68 is repelled, and the knocking rod 67 quickly extends out, enhancing the knocking force. When passing by the attracting magnet block 69, the magnetic block 68 is attracted, causing the knocking rod 67 to approach the central rod 65 and be received into the placement groove 661.

[0065] Effect: Utilizing the magnetic effect to enhance the knocking force of the knocking rod 67, further improving the knocking effect on the mold 2, which helps to improve the forming quality of the aluminum alloy profile.

[0066] Further, a guide rail is provided on the support base 1, and the sliding table of the guide rail is connected to the incomplete rack 41.

[0067] The guide rail provided on the support base 1, whose sliding table is connected to the incomplete rack 41. During the movement of the incomplete rack 41, the sliding table slides along the guide rail, providing guidance and support for the linear movement of the incomplete rack 41.

[0068] The connecting rod 61 is connected to the hollow plate 52 through a return spring 611.

[0069] The connecting rod 61 is connected to the hollow plate 52 through a return spring 611. After the swinging heat dissipation mechanism 5 acts to drive the knocking mechanism 6 to work, the return spring 611 will provide a return force, enabling the knocking mechanism 6 to return to the initial position after the action is completed, preparing for the next knock. At the same time, it can drive the spoiler 54 to move for flow disturbance, increasing the uniformity of the coolant temperature.

[0070] The above describes the embodiments of the present invention. However, these embodiments are not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. An extrusion device for aluminum alloy profiles of an air purifier, characterized in that, It includes a support base (1), a mold (2), an extrusion driving mechanism (3), a transmission member (4), a swing heat dissipation mechanism (5), and a knocking mechanism (6); The mold (2) and the extrusion driving mechanism (3) are respectively assembled on the support base (1); The swing heat dissipation mechanism (5) is rotatably arranged on the support base (1); When the extrusion driving mechanism (3) moves towards the mold (2), the swing heat dissipation mechanism (5) is driven to perform intermittent actions through the transmission of the transmission member (4), so that it fits with the surface of the mold (2). During this process, heat conduction occurs between the swing heat dissipation mechanism (5) and the mold (2) for heat dissipation. When the swing heat dissipation mechanism (5) separates from the mold (2), it dissipates heat by itself. At the same time, when the swing heat dissipation mechanism (5) acts, it drives the knocking mechanism (6) to intermittently knock the mold (2).

2. The extrusion equipment for an air purifier aluminum alloy profile according to claim 1, characterized in that: The extrusion driving mechanism (3) includes a hydraulic cylinder (31) and a push plate (32). The hydraulic cylinder (31) is installed on the support base (1), and the driving end of the hydraulic cylinder (31) is fixedly connected to the push plate (32).

3. An extrusion device for an aluminum alloy profile of an air purifier according to claim 2, characterized in that: The transmission member (4) includes an incomplete rack (41) and a transmission gear (42). The teeth on the incomplete rack (41) are divided into multiple groups, and there are gaps between each group of teeth. One end of the incomplete rack (41) is fixedly connected to the push plate (32), and the incomplete rack (41) is in transmission cooperation with the transmission gear (42).

4. An extrusion device for an aluminum alloy profile of an air purifier according to claim 3, characterized in that: The swing heat dissipation mechanism (5) includes a rotating rod (51), a hollow plate (52), and a torsion spring (53). One end of the rotating rod (51) rotatably extends into the interior of the support base (1) and is rotatably connected to the support base (1) through a one-way rotating shaft. The transmission gear (42) is fixedly sleeved on the rotating rod (51) and is connected to the support base (1) through the torsion spring (53). The interior of the hollow plate (52) is filled with a coolant.

5. An extrusion device for an aluminum alloy profile of an air purifier according to claim 4, characterized in that: A flow disturbing plate (54) is slidably arranged inside the hollow plate (52), and the flow disturbing plate (54) is provided with mesh holes.

6. The extrusion equipment for an air purifier aluminum alloy profile according to claim 5, characterized in that: The knocking mechanism (6) includes a connecting rod (61), a moving rod (62), a mounting rod (63), a notched ring shell (64), a central rod (65), and a knocking member. One end of the moving rod (62) slidably extends into the interior of the hollow plate (52) and is fixedly connected to the flow disturbing plate (54). The other end of the moving rod (62) is connected to the mounting rod (63) through the connecting rod (61). The notched ring shell (64) is installed on the mounting rod (63). The notched ring shell (64) forms openings on one side and at the bottom. The central rod (65) is installed in the middle of the notched ring shell (64) and cooperates with the knocking member.

7. An extrusion device for an aluminum alloy profile of an air purifier according to claim 6, characterized in that: The knocking member includes a round block (66). The round block (66) is rotatably arranged on the central rod (65) and is rotatably sleeved with the notched ring shell (64). A plurality of placement grooves (661) are formed inside the round block (66), and the placement grooves (661) are open on the outer periphery of the round block (66). A knocking rod (67) is slidably sleeved inside the placement groove (661).

8. An extrusion device for an air purifier aluminum alloy profile according to claim 7, characterized in that: A magnetic block (68) is provided at one end of the striking rod (67) close to the central rod (65), and an attracting magnet block (69) and a repelling magnet block (610) are inlaid on the outer periphery of the central rod (65) close to the opening of the notch ring shell (64).

9. An aluminum alloy profile extrusion device for an air purifier according to any one of claims 3-8, characterized in that: A guide rail is provided on the support base (1), and the slide of the guide rail is connected to the incomplete rack (41).

10. An extrusion device for an aluminum alloy profile of an air purifier according to claim 8, characterized in that: The connecting rod (61) is connected to the hollow plate (52) through a return spring (611).

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