A cooling device for an aluminum alloy sheet extrusion production line

Abstract

This invention belongs to the field of aluminum material processing technology, specifically a cooling device for an aluminum alloy sheet extrusion production line. It includes an extrusion production device, a conveyor, and a cooling box. An air-cooling device is installed above the cooling box. The conveyor has two inclined mounting slots inside, and conveying components are fixedly installed inside these slots. Multiple clamping plates are fixedly installed on the conveying structure of the conveying components, with their tops vertically positioned. The two conveying components are in an inverted V-shape. When a vertical aluminum alloy sheet approaches and is conveyed to the top of the conveyor, the distance between the two closest clamping plates is greater than the thickness of the aluminum alloy sheet. As the aluminum alloy sheet continues to move towards the conveyor, the distance between the two clamping plates in the same transmission group gradually decreases until the aluminum alloy sheet is clamped. After the aluminum alloy sheet enters the cooling box through a partition plate, the cold air inside the cooling box, after the air-cooling device has been activated, can rapidly cool the vertically positioned aluminum alloy sheet.

Description

Technical Field

[0001] This invention belongs to the field of aluminum material processing, specifically a cooling device for an aluminum alloy sheet extrusion production line. Background Technology

[0002] In the process of manufacturing aluminum alloy products, the general production process includes an extrusion step. After the raw material is extruded into shape, the formed aluminum alloy plate is at an extremely high temperature and must be cooled down and shaped quickly. Therefore, multiple clamping mechanisms are used to clamp the profile and then external cooling is achieved with the help of fans, sprayers or atomizing devices to facilitate subsequent product production.

[0003] A patent document with announcement number CN213728615U discloses a cooling device for aluminum product processing, including a conveyor chain and a support plate. Multiple sets of chains are installed on the outer periphery of the conveyor chain, and positioning plates are installed on the outer side of the chains. The aluminum plate to be cooled is placed between two positioning plates and is in contact with the upper surface of the conveyor chain.

[0004] While traditional cooling methods can cool the material simultaneously during transport, they generally employ flat conveying, resulting in only one side of the profile being cooled. This necessitates flipping the profile later, which lengthens the transport chain and increases the equipment footprint. Additionally, the large gaps in the conveying structure make it easy for the cooling medium to leak. If vertical conveying is used instead, an additional clamping mechanism is required. The initial clamping distance of the aluminum alloy plate by the clamping mechanism needs frequent adjustment, which not only affects the conveying efficiency but also increases the long-term wear and tear of the equipment.

[0005] Therefore, the present invention provides a cooling device for an aluminum alloy sheet extrusion production line to solve the problems mentioned in the background art. Summary of the Invention

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: A cooling device for an aluminum alloy plate extrusion production line, comprising an extrusion production device and a conveyor installed on one side of the extrusion production device. The extrusion production device is used to extrude raw materials to produce aluminum alloy plates. A cooling box is installed on the conveyor, and an air-cooling device is installed above the cooling box. Two inclined mounting slots are opened inside the conveyor, and conveying components are fixedly installed inside the two inclined mounting slots. Multiple clamping plates are fixedly installed on the conveying structure of the conveying components. The tops of the multiple clamping plates are vertically arranged. The two conveying components are in an inverted V-shape, and the distance between the lower parts of the two conveying components is greater than the distance between the upper parts.

[0007] The cooling box is equipped with isolation plates on both sides, and multiple clamping plates and the clamped aluminum alloy plates enter and exit the cooling box through the isolation plates.

[0008] Preferably, a support bar is fixedly installed above the conveyor, the support bar is located within the distance between the two conveying components, and multiple rotating shafts are movably installed inside the support bar, the top horizontal plane of the rotating shafts being higher than the top horizontal plane of the support bar.

[0009] Preferably, the conveying assembly includes two frames fixedly mounted on the inner wall of the inclined mounting slot, a conveyor belt is mounted around the two frames, and a rotating structure is provided inside both ends of the two frames for driving the conveyor belt.

[0010] Preferably, the conveyor belt type is a metal chain plate or a chain-type rigid structure.

[0011] Preferably, the clamping plate includes a connecting strip fixedly installed on the outside of the conveyor belt and an L-shaped plate fixedly installed on one side of the connecting strip. A vertical plate is fixedly installed on one side of the L-shaped plate, and the vertical plate is vertically arranged.

[0012] Preferably, the vertical plate has an inclined groove and a cooling groove inside, and multiple support bars are fixedly installed inside the cooling groove. The inclined groove and the cooling groove are used to store cold air.

[0013] Preferably, an L-shaped air duct is fixedly installed on the side of the isolation plate away from the extrusion production device. The upper end of the L-shaped air duct is connected to the inside of the cooling box. Opposing strip-shaped air outlets are opened below the isolation plate. The lower end of the L-shaped air duct is used to supply air to the opposing strip-shaped air outlets.

[0014] Preferably, the opposing strip air vents are arranged facing the vertical plate, and the opposing strip air vents are angled to blow away the gas in the nearest angled slot and cooling slot.

[0015] Preferably, a component strip is fixedly installed on the outer side of the isolation plate. The upper part of the component strip is connected to the lower end of the L-shaped air duct. An air outlet groove is opened on the side of the component strip facing the opposite strip air outlet. The air outlet groove is connected to the opposite strip air outlet, and the angle of the two air outlets is the same.

[0016] Preferably, an air knife is fixedly installed inside the air outlet groove, and a brush is fixedly installed on one side of the component strip.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The cooling device for an aluminum alloy sheet extrusion production line of the present invention, wherein when a vertical aluminum alloy sheet approaches and is conveyed to the top of the conveyor, the distance between the two closest clamping plates is greater than the thickness of the aluminum alloy sheet. As the aluminum alloy sheet continues to move towards the conveyor, the distance between the two clamping plates in the same transmission group gradually decreases until the aluminum alloy sheet is clamped. With transmission, more clamping plates with decreasing distances clamp the two sides of the aluminum alloy sheet, stabilizing it and maintaining the vertical state of the aluminum alloy sheet. When the vertical aluminum alloy sheet enters the cooling box through the isolation plate, the cold air inside the cooling box after the air-cooling device is working can quickly cool the vertical aluminum alloy sheet. The large contact area between the cooling medium and the aluminum alloy sheet can quickly improve the cooling efficiency.

[0019] 2. The cooling device for an aluminum alloy sheet extrusion production line of the present invention modifies a vertical plate with a certain thickness by opening inclined grooves and cooling grooves so that cold air can be stored inside the cooling box. Multiple support bars are set to strengthen the structural strength of the vertical plate. As the vertical plate moves, the cold air inside the inclined grooves and cooling grooves can be gradually replaced. That is, a cold air chamber is set inside the vertical plate, so that the clamping contact surface between the vertical plate and the aluminum alloy sheet can also be cooled quickly.

[0020] 3. The cooling device for an aluminum alloy plate extrusion production line described in this invention blows vertical airflow towards the inclined groove using an air knife, replacing the original cold air in the inclined groove and cooling tank. Since the original airflow in the inclined groove and cooling tank is the airflow in the relatively central position inside the cooling box and has a lower temperature, while the airflow drawn in by the L-shaped air duct is the airflow that has been exchanging heat with the outside through the partition plate and has a higher temperature, this airflow replacement method can significantly maintain the low temperature inside the cooling box. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of the entire invention;

[0023] Figure 2 This is a three-dimensional schematic diagram of the conveyor and cooling box in this invention;

[0024] Figure 3 This is a three-dimensional schematic diagram of the conveyor in this invention;

[0025] Figure 4 This is a front view schematic diagram of the conveyor in this invention;

[0026] Figure 5 This is a three-dimensional schematic diagram of the clamping plate in this invention;

[0027] Figure 6This is a three-dimensional schematic diagram of the transmission component in this invention;

[0028] Figure 7 This is a three-dimensional schematic diagram of the clamping plate and the isolation plate in this invention;

[0029] Figure 8 This is a three-dimensional schematic diagram of the component strip in this invention.

[0030] In the diagram: 1. Extrusion production unit; 2. Conveyor; 21. Conveying assembly; 211. Frame; 212. Conveyor belt; 22. Clamping plate; 221. Vertical plate; 2211. Inclined groove; 2212. Cooling groove; 2213. Support bar; 222. L-shaped plate; 223. Connecting bar; 23. Inclined mounting groove; 24. Erection bar; 241. Rotating shaft; 3. Cooling box; 31. Isolation plate; 311. Opposing strip air outlet; 312. L-shaped air duct; 32. Component bar; 321. Air outlet groove; 322. Air knife; 323. Brush; 4. Air cooling device. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Example 1: As Figures 1-4 As shown, a cooling device for an aluminum alloy sheet extrusion production line according to an embodiment of the present invention includes an extrusion production device 1 and a conveyor 2 installed on one side of the extrusion production device 1. The extrusion production device 1 is used to extrude raw materials to produce aluminum alloy sheets. A cooling box 3 is installed on the conveyor 2, and an air-cooling device 4 is installed above the cooling box 3. Two inclined mounting slots 23 are opened inside the conveyor 2. A conveying assembly 21 is fixedly installed inside the two inclined mounting slots 23. Multiple clamping plates 22 are fixedly installed on the conveying structure of the conveying assembly 21. The tops of the multiple clamping plates 22 are vertically arranged. The two conveying assemblies 21 are in an inverted V-shape, and the distance between the lower parts of the two conveying assemblies 21 is greater than the distance between the upper parts.

[0033] Isolation plates 31 are installed on both sides of the cooling box 3. Multiple clamping plates 22 and the clamped aluminum alloy plates enter and exit the cooling box 3 through the isolation plates 31.

[0034] Specifically, after the aluminum alloy sheet is extruded and formed by the extrusion production device 1, it is vertically conveyed to one side of the conveyor 2. At this time, the conveying assembly 21 is driven, and multiple clamping plates 22 on the outside of the conveying assembly 21 are driven by the conveying assembly 21. Because the two conveying assemblies 21 are in an inverted V-shape, when the multiple pairs of corresponding clamping plates 22 on the two conveying assemblies 21 are above the conveyor 2, the spacing between the multiple pairs of corresponding clamping plates 22 in the middle of the upper part of the conveyor 2 is fixed, while the spacing between the multiple pairs of corresponding clamping plates 22 at both ends of the upper part of the conveyor 2 is larger. The thickness of the aluminum alloy sheet is less than this larger spacing, and the two pairs of... The clamping plates 22 with fixed spacing can clamp and convey the aluminum alloy plate. When two pairs of corresponding clamping plates 22 are driven at the bottom of the conveyor 2, the spacing between the multiple clamping plates 22 at the bottom of the conveyor 2 is also relatively large. The multiple clamping plates 22 can be driven along with the conveying assembly 21. Therefore, the change in spacing is gradual and does not require external structural adjustment. When the vertical aluminum alloy plate approaches and is conveyed to the top of the conveyor 2, the spacing between the two closest clamping plates 22 is greater than the thickness of the aluminum alloy plate. As the aluminum alloy plate continues to move towards the conveyor 2, the spacing between the two clamping plates 22 in the same group of transmission gradually decreases until the aluminum alloy plate is clamped. The aluminum alloy plate is clamped by multiple clamping plates 22 with decreasing spacing, which stabilize the plate and maintain its vertical position. After the vertical aluminum alloy plate enters the cooling box 3 via the isolation plate 31, the cold air inside the cooling box 3, after being cooled by the air-cooling device 4, rapidly cools the vertical aluminum alloy plate. The large contact area between the cooling medium and the aluminum alloy plate significantly improves cooling efficiency. Compared to traditional flat-lying conveying cooling, it eliminates the need to cool one side before cooling the other, reducing the footprint of the device. Furthermore, the cooling box 3 in this device provides strong enclosure compared to... Compared to the large gaps in traditional flat conveying structures, this device can significantly reduce the leakage of cold air, thereby reducing costs. Furthermore, the inverted V-shaped arrangement of the two conveying components 21 in this device allows for gradual adjustment of the spacing between multiple corresponding clamping plates 22 without external force. When the aluminum alloy plate is first conveyed onto the conveyor 2, the distance between the two clamping plates 22 is greater than the thickness of the aluminum alloy plate. As the plate is conveyed, the aluminum alloy plate is gradually clamped. Compared to traditional technologies, fewer structures are needed to adjust the distance between the two clamping plates 22, and the aluminum alloy plate is not squeezed between the two clamping plates 22, thus reducing damage to the aluminum alloy plate.

[0035] like Figures 3-6 As shown, a support bar 24 is fixedly installed above the conveyor 2. The support bar 24 is located within the distance between the two conveying components 21. Multiple rotating shafts 241 are movably installed inside the support bar 24. The top horizontal plane of the rotating shafts 241 is higher than the top horizontal plane of the support bar 24.

[0036] The conveying assembly 21 includes two frames 211 fixedly installed on the inner wall of the inclined mounting groove 23. A conveyor belt 212 is installed around the two frames 211. Rotating structures are provided inside both ends of the two frames 211 for driving the conveyor belt 212.

[0037] The conveyor belt type 212 is preferably a metal chain plate or a chain-type rigid structure.

[0038] The clamping plate 22 includes a connecting strip 223 fixedly installed on the outside of the conveyor belt 212 and an L-shaped plate 222 fixedly installed on one side of the connecting strip 223. A vertical plate 221 is fixedly installed on one side of the L-shaped plate 222, and the vertical plate 221 is vertically arranged.

[0039] Specifically, when the aluminum alloy plate is initially conveyed onto the conveyor 2, its bottom contacts multiple rotating shafts 241 on the support bar 24. As the aluminum alloy plate is conveyed by two or more clamping plates 22, the bottom of the aluminum alloy plate contacts different multiple rotating shafts 241. The rolling multiple rotating shafts 241 reduce the friction of the aluminum alloy plate during conveying, thereby improving the cooling efficiency. The two conveying components 21 are each fixedly installed inside the corresponding inclined mounting slots 23. The rotating structure inside the frame 211 is driven by the cooperation of the external motor output shaft and the universal joint, thereby allowing the conveyor belt 212 to perform transmission. The connecting bar 223 is relatively short and can be fixedly connected to the outside of the metal chain plate or chain-like transmission structure. The presence of the L-shaped plate 222 allows the vertical plate 221 to extend to the outside of the conveying component 21, so that the distance between two corresponding clamping plates 22 at the same position is less than the distance between the two conveying components 21, that is, the two clamping plates 22 at the same position clamp the aluminum alloy plate.

[0040] like Figure 7 As shown, the vertical plate 221 has an inclined groove 2211 and a cooling groove 2212 inside. Multiple support bars 2213 are fixedly installed inside the cooling groove 2212. The interior of the inclined groove 2211 and the cooling groove 2212 is used to store cold air.

[0041] Specifically, the vertical plate 221 used to clamp the aluminum alloy plate needs to have a certain thickness to avoid damage caused by the weight of the aluminum alloy plate when the vertical plate 221 is too thin. However, a vertical plate 221 with a certain thickness will reduce the cooling of the aluminum alloy plate. Therefore, in this device, the vertical plate 221 with a certain thickness is modified by opening inclined grooves 2211 and cooling grooves 2212 so that cold air can be stored inside the cooling box 3. The multiple support bars 2213 are used to strengthen the structural strength of the vertical plate 221. As the vertical plate 221 moves, the cold air inside the inclined grooves 2211 and cooling grooves 2212 can be gradually replaced. That is, a cold air chamber is set inside the vertical plate 221, so that the clamping contact surface between the vertical plate 221 and the aluminum alloy plate can also be cooled quickly.

[0042] Example 2: Figures 7-8 As shown in the first embodiment, another embodiment of the present invention is as follows: an L-shaped air duct 312 is fixedly installed on the side of the isolation plate 31 away from the extrusion production device 1. The upper end of the L-shaped air duct 312 is connected to the interior of the cooling box 3. A counter-strip air outlet 311 is opened below the isolation plate 31. The lower end of the L-shaped air duct 312 is used to supply air to the counter-strip air outlet 311.

[0043] The opposing strip air vents 311 are positioned facing the vertical plate 221 and are angled outwards to blow away the gas in the nearest angled slot 2211 and the cooling slot 2212.

[0044] A component strip 32 is fixedly installed on the outside of the isolation plate 31. The upper part of the component strip 32 is connected to the lower end of the L-shaped air duct 312. An air outlet groove 321 is opened on the side of the component strip 32 facing the opposite strip air outlet 311. The air outlet groove 321 is connected to the opposite strip air outlet 311, and the angle of the two oblique air outlets is the same.

[0045] An air knife 322 is fixedly installed inside the air outlet groove 321, and a brush 323 is fixedly installed on one side of the component strip 32.

[0046] Specifically, when the aluminum alloy plate, held by multiple vertical plates 221 in pairs, is about to leave the cooling box 3, the angle of the inclined groove 2211 is consistent with the air outlet angle of the opposing strip-shaped air vent 311, the air outlet groove 321, and the air knife 322. The electrically driven air knife 322 then operates, drawing airflow from one side of the isolation plate 31 inside the cooling box 3 through the L-shaped air duct 312. The air knife 322 blows vertical airflow towards the inclined groove 2211, replacing the original cold air in the inclined groove 2211 and the cooling groove 2212. Because the original airflow in the inclined groove 2211 and the cooling groove 2212 is from a relatively central location inside the cooling box 3 and has a lower temperature, while the airflow drawn in by the L-shaped air duct 312 is constantly exchanging heat with the outside through the isolation plate 31 and has a higher temperature, this airflow replacement method can significantly maintain... The cooling box 3 maintains a low temperature. Without the air knife 322, when the vertical plate 221 moves outward from the cooling box 3, it will not only carry the cold air with a lower temperature inside the inclined groove 2211 and the cooling groove 2212, but also add the convective air leaking outward from the cooling box 3. The air knife 322 brings this part of the leaked convective air back into the cooling box 3. That is, the vertical plate 221 was originally supposed to carry away the cold air with a lower temperature inside it and the cold air leaking outward according to the transmission of the vertical plate 221. However, in this device, due to the airflow replacement of the air knife 322, the vertical plate 221 can only carry the higher temperature cold air inside it after the replacement. This can effectively improve the cooling efficiency and reduce the air supply cost. When the vertical plate 221 passes the opposing strip air outlet 311, it will come into contact with the brush 323. The brush 323 can block the cold air blown back and prevent the outside hot air from being sucked in.

[0047] Working principle: After being extruded by the extrusion production device 1, the aluminum alloy sheet is vertically conveyed to one side of the conveyor 2. At this time, the conveying assembly 21 is driven, and multiple clamping plates 22 on the outside of the conveying assembly 21 are driven by the conveying assembly 21. Since the two conveying assemblies 21 are in an inverted V-shape, when the multiple clamping plates 22 on the two conveying assemblies 21 are above the conveyor 2, the spacing between the multiple clamping plates 22 in the middle of the upper part of the conveyor 2 is fixed, while the spacing between the multiple clamping plates 22 at both ends of the upper part of the conveyor 2 is larger. The thickness of the aluminum alloy sheet is less than this larger spacing. The two corresponding clamping plates 22 with a fixed spacing can clamp and convey the aluminum alloy sheet. When the two corresponding clamping plates 22 are... When the aluminum alloy plate is driven at the bottom of the conveyor 2, the spacing between the multiple clamping plates 22 at the bottom of the conveyor 2 is relatively large. The multiple clamping plates 22 can be driven along with the conveying component 21. Therefore, the change in spacing is gradual and does not require external structural adjustment. When the vertical aluminum alloy plate approaches and is conveyed to the top of the conveyor 2, the spacing between the two closest clamping plates 22 is greater than the thickness of the aluminum alloy plate. As the aluminum alloy plate continues to move towards the conveyor 2, the spacing between the two clamping plates 22 in the same group of transmission gradually decreases until the aluminum alloy plate is clamped. With transmission, more clamping plates 22 with smaller spacing clamp on both sides of the aluminum alloy plate to stabilize it and keep the aluminum alloy plate vertical. When the vertical aluminum alloy plate passes through the isolation plate 31 After entering the cooling box 3, the cold air inside the cooling box 3, after being cooled by the air-cooling device 4, can quickly cool the vertical aluminum alloy plate. The large contact area between the cooling medium and the aluminum alloy plate can quickly improve the cooling efficiency. Compared with the traditional flat conveyor cooling, it is not necessary to cool one side and then the other side, which can reduce the footprint of the device. In addition, the cooling box 3 in this device has a strong enclosure, which can reduce the leakage of cold air to a greater extent compared with the large gap of the traditional flat conveyor structure, thereby reducing costs. Furthermore, the inverted V-shaped arrangement of the two conveying components 21 in this device allows for gradual adjustment of the spacing between multiple pairs of corresponding clamping plates 22 without external force. When the aluminum alloy plate is first conveyed onto the conveyor 2, the two clamping plates... The spacing between plates 22 is greater than the thickness of the aluminum alloy plate. As the plate is conveyed, it gradually clamps the aluminum alloy plate. Compared with traditional technology, this reduces the need for structures to adjust the spacing between the two clamping plates 22 and prevents the aluminum alloy plate from being squeezed between the two clamping plates 22, thus reducing damage to the aluminum alloy plate. When the aluminum alloy plate, clamped by multiple pairs of vertical plates 221, is about to leave the cooling box 3, the angle of the inclined groove 2211 is consistent with the air outlet angle of the opposing strip-shaped air outlet 311, the air outlet groove 321, and the air knife 322. The electrically driven air knife 322 operates, drawing airflow from the side of the isolation plate 31 inside the cooling box 3 through the L-shaped air duct 312. The air knife 322 blows vertical airflow towards the inclined groove 2211.The blown air replaces the original cold air in the inclined slots 2211 and cooling slots 2212. Since the original airflow in these slots is from a relatively central area inside the cooling box 3 and has a lower temperature, while the airflow drawn in by the L-shaped duct 312 is constantly exchanging heat with the outside through the partition plate 31 and has a higher temperature, this airflow replacement method can significantly maintain the low temperature inside the cooling box 3. Without the air knife 322, when the vertical plate 221 moves outwards from the cooling box 3, it will not only carry away the lower-temperature cold air in the inclined slots 2211 and cooling slots 2212, but also add extra heat to the cooling box 3. The outward leakage of convective air is redirected by the air knife 322, which draws this leakage air back into the cooling box 3. Originally, the vertical plate 221 was intended to remove both the cooler internal air and the leaking cool air. However, due to the airflow replacement provided by the air knife 322, the vertical plate 221 ultimately only carries the replaced, warmer internal air, effectively improving cooling efficiency and reducing air supply costs. After passing the opposing strip-shaped air vent 311, the vertical plate 221 comes into contact with the brush 323. The brush 323 blocks the blown-back cool air, preventing the entrainment of hot outside air.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for an aluminum alloy sheet extrusion production line, comprising an extrusion production device (1) and a conveyor (2) installed on one side of the extrusion production device (1), wherein the extrusion production device (1) is used to extrude raw materials to produce aluminum alloy sheets, a cooling box (3) is installed on the conveyor (2), and an air-cooling device (4) is installed above the cooling box (3), characterized in that: The conveyor (2) has two inclined mounting slots (23) inside. A conveying assembly (21) is fixedly installed inside the two inclined mounting slots (23). Multiple clamping plates (22) are fixedly installed on the conveying structure of the conveying assembly (21). The tops of the multiple clamping plates (22) are vertically set. The two conveying assemblies (21) are in an inverted V-shape. The distance between the two conveying assemblies (21) at the bottom is greater than the distance at the top. The cooling box (3) is equipped with isolation plates (31) on both sides. Multiple clamping plates (22) and the clamped aluminum alloy plates enter and exit the cooling box (3) through the isolation plates (31). The conveying assembly (21) includes two frames (211) fixedly mounted on the inner wall of the inclined mounting groove (23), a conveyor belt (212) is mounted around the two frames (211), and a rotating structure is provided inside both ends of the two frames (211) for driving the conveyor belt (212). The clamping plate (22) includes a connecting strip (223) fixedly installed on the outside of the conveyor belt (212) and an L-shaped plate (222) fixedly installed on one side of the connecting strip (223). A vertical plate (221) is fixedly installed on one side of the L-shaped plate (222), and the vertical plate (221) is vertically arranged. The vertical plate (221) has an inclined groove (2211) and a cooling groove (2212) inside. Multiple support bars (2213) are fixedly installed inside the cooling groove (2212). The interior of the inclined groove (2211) and the cooling groove (2212) is used to store cold air.

2. The cooling device for an aluminum alloy sheet extrusion production line according to claim 1, characterized in that: A support bar (24) is fixedly installed above the conveyor (2). The support bar (24) is located within the distance between the two conveying components (21). Multiple rotating shafts (241) are movably installed inside the support bar (24). The top horizontal plane of the rotating shafts (241) is higher than the top horizontal plane of the support bar (24).

3. A cooling device for an aluminum alloy sheet extrusion production line according to claim 1, characterized in that: The conveyor belt (212) is a metal chain plate structure.

4. A cooling device for an aluminum alloy sheet extrusion production line according to claim 1, characterized in that: An L-shaped air duct (312) is fixedly installed on the side of the isolation plate (31) away from the extrusion production device (1). The upper end of the L-shaped air duct (312) is connected to the interior of the cooling box (3). A counter-strip air outlet (311) is opened below the isolation plate (31). The lower end of the L-shaped air duct (312) is used to supply air to the counter-strip air outlet (311).

5. A cooling device for an aluminum alloy sheet extrusion production line according to claim 4, characterized in that: The opposing strip air vents (311) are arranged facing the vertical plate (221), and the opposing strip air vents (311) are obliquely vented to blow away the gas in the nearest oblique groove (2211) and cooling groove (2212).

6. A cooling device for an aluminum alloy sheet extrusion production line according to claim 4, characterized in that: A component strip (32) is fixedly installed on the outside of the isolation plate (31). The upper part of the component strip (32) is connected to the lower end of the L-shaped air duct (312). An air outlet groove (321) is opened on the side of the component strip (32) facing the opposite strip air outlet (311). The air outlet groove (321) is connected to the opposite strip air outlet (311), and the angle of the two air outlets is the same.

7. A cooling device for an aluminum alloy sheet extrusion production line according to claim 6, characterized in that: An air knife (322) is fixedly installed inside the air outlet groove (321), and a brush (323) is fixedly installed on one side of the component strip (32).

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