Double-belt type aluminum material casting machine and casting process thereof

Abstract

The double-belt type aluminum material casting machine comprises a second blocking frame, the second blocking frame is fixedly installed in a base, second sealing gaskets are arranged at the top and the bottom of the second blocking frame, and the first sealing gaskets and the second sealing gaskets make contact with a conveying mechanism and are used for blocking cooling water sprayed to a steel belt; splashing or direct falling from the edge of the steel belt is prevented; through the design of the first blocking frame, the first sealing gasket, the second blocking frame and other structures, the problem that cooling water splashes or flows down from the side edge of the steel strip is effectively prevented, water resource waste and sewage treatment pressure are avoided, meanwhile, the sealing structure guarantees the sealing performance of a cooling area, it is guaranteed that the steel strip and a casting blank are evenly cooled, and the service life of the casting blank is prolonged. In addition, cooling water is recycled in a centralized mode through the liquid discharging pipe, the cooling water is prevented from permeating into an equipment transmission mechanism, corrosion and aging of parts are delayed, the operation stability of equipment is improved, the service life of the equipment is prolonged, and finally double improvement of the casting efficiency and the product percent of pass is promoted.

Description

Technical Field

[0001] This invention relates to the field of aluminum production equipment technology, specifically to a double-belt aluminum casting machine and its casting process. Background Technology

[0002] Twin-belt aluminum casting machines are widely used in aluminum sheet and strip production due to their high efficiency and continuous process characteristics. Their core principle involves using two circulating steel belts as crystallizers to cool and solidify molten aluminum. During this process, cooling water is continuously sprayed onto the high-temperature steel belt surface for heat exchange.

[0003] However, the existing cooling system has obvious defects. A large amount of cooling water sprayed onto the steel strip is not effectively utilized and splashes or flows directly from the edge of the steel strip. This not only wastes water resources and puts pressure on subsequent sewage treatment, but also causes uneven local cooling of the steel strip, resulting in quality defects such as cracks and segregation on the surface of the billet. At the same time, the flowing cooling water may seep into the equipment transmission mechanism, accelerating the corrosion and aging of components, reducing the stability and service life of the equipment, and restricting the improvement of casting efficiency and product qualification rate. Therefore, we need to propose a double-belt aluminum casting machine. Summary of the Invention

[0004] The purpose of this invention is to provide a dual-belt aluminum casting machine and its casting process to solve the problem mentioned in the background art that the cooling water is not effectively recovered after being sprayed, and a large amount flows off the surface of the steel strip, which not only causes serious waste of water resources, but also leads to uneven local cooling of the steel strip.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A double-belt aluminum casting machine includes: a base with a lifting seat on top thereon, and a conveying mechanism for continuous casting of molten aluminum inside the base and the lifting seat; a first baffle frame fixedly installed inside the lifting seat, and a first sealing gasket at the bottom of the first baffle frame; and a second baffle frame fixedly installed inside the base, and a second sealing gasket at both the top and bottom of the second baffle frame. Both the first and second sealing gaskets are in contact with the conveying mechanism and are used to block cooling water sprayed onto the steel belt to prevent splashing or direct flow from the edge of the steel belt.

[0006] Preferably, the conveying mechanism includes a lower drive wheel, a lower driven wheel, a lower annular steel belt, an upper drive wheel, an upper driven wheel, and an upper annular steel belt; The lower drive wheel and the lower driven wheel are rotatably mounted inside the base. The lower annular steel strip is provided on the lower drive wheel and the lower driven wheel. The upper drive wheel and the upper driven wheel are rotatably mounted inside the lifting seat. The upper annular steel strip is provided on the upper drive wheel and the upper driven wheel. A flow channel for the flow of molten aluminum is left between the lower annular steel strip and the upper annular steel strip for continuous casting of aluminum billets between the lower annular steel strip and the upper annular steel strip.

[0007] Preferably, the first baffle is disposed inside the upper annular steel strip, and the first sealing gasket is in contact with the inner wall of the upper annular steel strip.

[0008] Preferably, the second baffle is disposed inside the lower annular steel strip, and the second sealing gaskets at the top and bottom of the second baffle are in contact with the interior of the lower annular steel strip.

[0009] Preferably, it also includes support rollers, wherein multiple sets of support rollers are provided, and the multiple sets of support rollers are rotatably installed inside the lifting seat and the second baffle. The multiple sets of support rollers located inside the lifting seat are located inside the upper annular steel belt and the first baffle. The sides of the multiple sets of support rollers located inside the first baffle are in contact with the inner wall of the upper annular steel belt, and the sides of the multiple sets of support rollers located inside the second baffle are in contact with the inner wall of the lower annular steel belt.

[0010] Preferably, it also includes a main conveying pipe fixedly installed on the side of the base and the lifting seat, the main conveying pipe being connected to multiple sets of conveying branch pipes, the conveying branch pipe on the base extending into the interior of the second baffle, the conveying branch pipe on the lifting seat extending above the first sealing gasket, and multiple sets of nozzles being provided on each of the multiple sets of conveying branch pipes.

[0011] Preferably, the lower annular steel strip is provided with two sets of first side plates for blocking the molten aluminum in the flow channel, and the upper annular steel strip is provided with two sets of second side plates corresponding to the first side plates. The first side plates are provided with clearance grooves that are inserted into the second side plates, and the second side plates are inserted into the clearance grooves.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention, through the design of a first baffle frame, a first sealing gasket, and a second baffle frame, achieves a seal between the first baffle frame and the inner wall of the upper annular steel strip by contacting the first sealing gasket and preventing spray water from leaking out from the side of the upper annular steel strip. Similarly, the second sealing gaskets at the top and bottom of the second baffle frame contact the inner wall of the lower annular steel strip, preventing spray water from leaking out from the side of the lower annular steel strip. This effectively prevents cooling water from splashing or flowing down from the side of the steel strip, avoiding water waste and wastewater treatment pressure. Simultaneously, the sealing structure ensures the airtightness of the cooling area, ensuring uniform cooling of the steel strip and the billet, significantly reducing quality defects such as surface cracks and segregation in the billet. Furthermore, the cooling water is centrally recovered through a drain pipe, preventing it from seeping into the equipment's transmission mechanism, delaying component corrosion and aging, improving equipment operational stability and service life, ultimately contributing to a dual improvement in casting efficiency and product qualification rate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2This is a cross-sectional structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the conveying mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the first baffle, the second baffle, and the support roller of the present invention; Figure 5 For the present invention Figure 3 Enlarged structural diagram of area A in the middle.

[0014] In the diagram: 1. Base; 2. Lower drive wheel; 3. Lower driven wheel; 4. Lower annular steel belt; 5. First side plate; 6. Clearance groove; 7. Bracket; 8. Hydraulic cylinder; 9. Lifting seat; 10. Upper drive wheel; 11. Upper driven wheel; 12. Upper annular steel belt; 13. Second side plate; 14. First baffle; 15. Main conveying pipe; 16. Branch conveying pipe; 17. First sealing gasket; 18. Second baffle; 19. Second sealing gasket; 20. Drain pipe; 21. Support roller; 22. Nozzle. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1-5 The present invention provides a technical solution: A double-belt aluminum casting machine and its casting process include: a base 1 with a lifting seat 9 on top, and a conveying mechanism for continuous casting of molten aluminum inside the base 1 and the lifting seat 9; a first baffle 14 fixedly installed inside the lifting seat 9, and a first sealing gasket 17 at the bottom of the first baffle 14; a second baffle 18 fixedly installed inside the base 1, and a second sealing gasket 19 at both the top and bottom of the second baffle 18, the first sealing gasket 17 and the second sealing gasket 19 both contacting the conveying mechanism to block cooling water sprayed onto the steel belt, preventing it from splashing or flowing directly from the edge of the steel belt.

[0017] It should be noted that a bracket 7 is fixedly installed on the top of the base 1, and a hydraulic cylinder 8 is fixedly installed on the top of the bracket 7. The telescopic end of the hydraulic cylinder 8 is fixedly installed on the top of the lifting seat 9, and the height of the lifting seat 9 is adjusted by the hydraulic cylinder 8.

[0018] In an optional embodiment: such as Figure 2 and Figure 3As shown, the conveying mechanism includes a lower drive wheel 2, a lower driven wheel 3, a lower annular steel belt 4, an upper drive wheel 10, an upper driven wheel 11, and an upper annular steel belt 12; The lower drive wheel 2 and the lower driven wheel 3 are both rotatably installed inside the base 1. The lower annular steel belt 4 is located on the lower drive wheel 2 and the lower driven wheel 3. The upper drive wheel 10 and the upper driven wheel 11 are both rotatably installed inside the lifting seat 9. The upper annular steel belt 12 is located on the upper drive wheel 10 and the upper driven wheel 11. A flow channel for the flow of molten aluminum is left between the lower annular steel belt 4 and the upper annular steel belt 12 for continuous casting of aluminum billets between the lower annular steel belt 4 and the upper annular steel belt 12.

[0019] It should be noted that by cooperating with the lower drive wheel 2, the lower driven wheel 3, the lower annular steel belt 4, the upper drive wheel 10, the upper driven wheel 11 and the upper annular steel belt 12, the aluminum liquid can be driven to move forward synchronously in the flow channel, forming a "dynamic forming" process, and the aluminum liquid gradually solidifies during the movement.

[0020] A first drive motor for driving the lower drive wheel 2 to rotate is fixedly installed on the side of the base 1, and a second drive motor for driving the upper drive wheel 10 to rotate is fixedly installed on the side of the lifting seat 9. The rotation speed of the lower drive wheel 2 driven by the first drive motor is the same as the rotation speed of the upper drive wheel 10 driven by the second drive motor. By driving the lower drive wheel 2 to rotate by the first drive motor and driving the upper drive wheel 10 to rotate by the second drive motor, the lower driven wheel 3 drives the lower annular steel belt 4 to move when the lower drive wheel 2 rotates, and the upper driven wheel 10 drives the upper annular steel belt 12 to move when the upper drive wheel 10 rotates, so that the lower annular steel belt 4 and the upper annular steel belt 12 can drive the aluminum liquid to move forward synchronously, forming a "dynamic forming" process, and the aluminum liquid gradually solidifies during the movement.

[0021] In an optional embodiment: such as Figure 3 As shown, the first baffle 14 is located inside the upper annular steel strip 12, and the first sealing gasket 17 is in contact with the inner wall of the upper annular steel strip 12.

[0022] It should be noted that by setting the first baffle 14, the water sprayed on the inner wall of the upper annular steel belt 12 can be blocked, preventing leakage through the side of the upper annular steel belt 12, and effectively preventing the problem of cooling water splashing or flowing down from the side of the steel belt.

[0023] In an optional embodiment: such as Figure 3 As shown, the second baffle 18 is located inside the lower annular steel belt 4, and the second sealing gaskets 19 at the top and bottom of the second baffle 18 are in contact with the interior of the lower annular steel belt 4.

[0024] It should be noted that, through the setting of the second sealing gasket 19 at the top of the second baffle 18, after the cooling water is sprayed into the interior of the lower annular steel belt 4, when the lower annular steel belt 4 moves under the transmission of the lower drive wheel 2 and the lower driven wheel 3, the water attached to the lower annular steel belt 4 is scraped off to prevent the cooling water from dripping. The area where the top of the second baffle 18 contacts the lower annular steel belt 4 and the area where the bottom of the first baffle 14 contacts the upper annular steel belt 12 are set as cooling zones. The second sealing gasket 19 at the bottom of the second baffle 18 can prevent cooling water from falling onto the lower annular steel belt 4 and then leaking out through the side of the lower annular steel belt 4, effectively preventing the problem of cooling water splashing or flowing from the side of the steel belt.

[0025] In an optional embodiment: such as Figure 4 As shown, it also includes support rollers 21. Multiple sets of support rollers 21 are provided. All sets of support rollers 21 are rotatably installed inside the lifting seat 9 and the second baffle 18. The multiple sets of support rollers 21 located inside the lifting seat 9 are located inside the upper annular steel belt 12 and the first baffle 14. The sides of the multiple sets of support rollers 21 located inside the first baffle 14 are in contact with the inner wall of the upper annular steel belt 12, and the sides of the multiple sets of support rollers 21 located inside the second baffle 18 are in contact with the inner wall of the lower annular steel belt 4.

[0026] It should be noted that the support rollers 21 inside the lifting seat 9 and the second baffle 18 support and position the upper annular steel strip 12 and the lower annular steel strip 4, which can ensure that a highly uniform flow channel is formed between the upper annular steel strip 12 and the lower annular steel strip 4, further ensuring the flatness of the aluminum surface.

[0027] In an optional embodiment: such as Figures 1 to 4 As shown, it also includes a main conveying pipe 15 fixedly installed on the side of the base 1 and the lifting seat 9. Multiple sets of conveying branch pipes 16 are connected to the main conveying pipe 15. The conveying branch pipes 16 on the base 1 extend into the interior of the second baffle 18, and the conveying branch pipes 16 on the lifting seat 9 extend above the first sealing gasket 17. Multiple sets of nozzles 22 are provided on each set of conveying branch pipes 16.

[0028] It should be noted that the main conveying pipe 15 is connected to an external cooling water supply device. Water is supplied to the main conveying pipe 15 and the branch conveying pipe 16 through the water supply device, so that the cooling water is sprayed through the nozzle 22 onto the upper annular steel strip 12 and the lower annular steel strip 4, which further accelerates the cooling of the steel strip and ensures that the steel strip can continuously absorb the heat of the subsequent aluminum liquid. Both the first baffle 14 and the second baffle 18 have drain pipes 20 connected to their sides for draining water, through which cooling water can be discharged from the first baffle 14 and the second baffle 18.

[0029] In an optional embodiment: such as Figure 2 , Figure 3 and Figure 5 As shown, the lower annular steel strip 4 is provided with two sets of first side plates 5 for blocking the molten aluminum in the flow channel, and the upper annular steel strip 12 is provided with two sets of second side plates 13 corresponding to the first side plates 5. The first side plate 5 is provided with a relief groove 6 that is inserted into the second side plate 13, and the second side plate 13 is inserted into the relief groove 6.

[0030] It should be noted that by cooperating with the first side plate 5, the clearance groove 6 and the second side plate 13, the height of the flow channel between the lower annular steel strip 4 and the upper annular steel strip 12 can be adjusted according to the thickness of the aluminum material, so as to adapt to the production of aluminum materials of different thicknesses. Specifically, by activating the hydraulic cylinder 8, the telescopic rod of the hydraulic cylinder 8 retracts, causing the lifting seat 9 to move. By adjusting the height of the upper annular steel belt 12 when the lifting seat 9 moves, the equipment can adapt to the production of castings of different thicknesses.

[0031] The usage process of this invention is as follows: Molten aluminum is fed into the flow channel of a double-belt aluminum casting machine through an injector. At this time, the lower drive wheel 2 is driven to rotate by the first drive motor and the upper drive wheel 10 is driven to rotate by the second drive motor. When the lower drive wheel 2 rotates, it cooperates with the lower driven wheel 3 to drive the lower annular steel belt 4 to move. When the upper drive wheel 10 rotates, it cooperates with the upper driven wheel 11 to drive the upper annular steel belt 12 to move. This allows the lower annular steel belt 4 and the upper annular steel belt 12 to drive the molten aluminum to move forward synchronously, forming a "dynamic forming" process. The molten aluminum gradually solidifies during the movement. Cooling water is supplied to the main conveying pipe 15 via a water supply device. After arriving at the main conveying pipe 15, the cooling water is sprayed out through nozzles 22 on the conveying branch pipe 16. The cooling water sprayed from the conveying branch pipe 16 on the lifting seat 9 falls onto the inner wall of the upper annular steel strip 12. At the same time, the cooling water sprayed from the conveying branch pipe 16 on the second baffle 18 rushes towards the inner wall of the lower annular steel strip 4, further accelerating the cooling of the steel strip and ensuring that the steel strip can continuously absorb the heat of the subsequent aluminum liquid. The cooling water after cooling the upper annular steel strip 12 can be discharged through the drain pipe 20 on the first baffle 14, and the cooling water after cooling the lower annular steel strip 4 can be discharged through the drain pipe 20 on the second baffle 18. The first sealing gasket 17 contacts the inner wall of the upper annular steel strip 12, sealing the space between the first baffle 14 and the inner wall of the upper annular steel strip 12. To prevent spray water from leaking out from the side of the upper annular steel strip 12, the second sealing gasket 19 at the top and bottom of the second baffle 18 contacts the inner wall of the first side plate 5, sealing the space between the second baffle 18 and the inner wall of the lower annular steel strip 4. This effectively prevents the problem of cooling water splashing or flowing down from the side of the steel strip, avoiding water waste and sewage treatment pressure. At the same time, the sealing structure ensures the airtightness of the cooling area, ensuring uniform cooling of the steel strip and billet, significantly reducing quality defects such as surface cracks and segregation of the billet. In addition, the cooling water is centrally recovered through the drain pipe to prevent it from seeping into the equipment transmission mechanism, delaying the corrosion and aging of components, improving the stability and service life of the equipment, and ultimately contributing to the dual improvement of casting efficiency and product qualification rate.

[0032] The control method described in this application is automatic control via a controller. The controller's control circuit can be easily programmed by those skilled in the art and is common knowledge in the field. This part is not the innovation of this invention. Furthermore, this application is mainly used to protect the structure, shape, and their combination. Therefore, this application will not explain the control method and circuit connection in detail. The device is powered by a built-in power supply or an external power supply.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-belt aluminum casting machine, characterized in that, include: The base (1) has a lifting seat (9) on top of it, and the interior of the base (1) and the lifting seat (9) is provided with a conveying mechanism for continuous casting of aluminum liquid; The first baffle (14) is fixedly installed on the inner side of the lifting seat (9), and the bottom of the first baffle (14) is provided with a first sealing gasket (17). The second baffle (18) is fixedly installed inside the base (1), and the top and bottom of the second baffle (18) are provided with second sealing gaskets (19). The first sealing gasket (17) and the second sealing gasket (19) are in contact with the conveying mechanism to block the cooling water sprayed onto the steel belt and prevent it from splashing or flowing directly from the edge of the steel belt.

2. The double-belt aluminum casting machine according to claim 1, characterized in that: The conveying mechanism includes a lower drive wheel (2), a lower driven wheel (3), a lower annular steel belt (4), an upper drive wheel (10), an upper driven wheel (11), and an upper annular steel belt (12). The lower drive wheel (2) and the lower driven wheel (3) are rotatably installed inside the base (1). The lower annular steel belt (4) is provided on the lower drive wheel (2) and the lower driven wheel (3). The upper drive wheel (10) and the upper driven wheel (11) are rotatably installed inside the lifting seat (9). The upper annular steel belt (12) is provided on the upper drive wheel (10) and the upper driven wheel (11). A flow channel for the flow of molten aluminum is left between the lower annular steel belt (4) and the upper annular steel belt (12) for continuous casting of aluminum billets between the lower annular steel belt (4) and the upper annular steel belt (12).

3. The double-belt aluminum casting machine according to claim 2, characterized in that: The first baffle (14) is located inside the upper annular steel strip (12), and the first sealing gasket (17) is in contact with the inner wall of the upper annular steel strip (12).

4. A double-belt aluminum casting machine according to claim 3, characterized in that: The second baffle (18) is located inside the lower annular steel strip (4), and the second sealing gaskets (19) at the top and bottom of the second baffle (18) are in contact with the interior of the lower annular steel strip (4).

5. A double-belt aluminum casting machine according to claim 2, characterized in that: It also includes support rollers (21), which are provided in multiple sets. All sets of support rollers (21) are rotatably installed inside the lifting seat (9) and the second baffle (18). The multiple sets of support rollers (21) located inside the lifting seat (9) are located inside the upper annular steel belt (12) and the first baffle (14). The sides of the multiple sets of support rollers (21) located inside the first baffle (14) are in contact with the inner wall of the upper annular steel belt (12), and the sides of the multiple sets of support rollers (21) located inside the second baffle (18) are in contact with the inner wall of the lower annular steel belt (4).

6. A double-belt aluminum casting machine according to claim 4, characterized in that: It also includes a main conveying pipe (15) fixedly installed on the side of the base (1) and the lifting seat (9). The main conveying pipe (15) is connected to multiple sets of conveying branch pipes (16). The conveying branch pipes (16) on the base (1) extend into the interior of the second baffle (18). The conveying branch pipes (16) on the lifting seat (9) extend above the first sealing gasket (17). Multiple sets of nozzles (22) are provided on each of the multiple sets of conveying branch pipes (16).

7. A double-belt aluminum casting machine according to claim 2, characterized in that: The lower annular steel strip (4) is provided with two sets of first side plates (5) for blocking the molten aluminum in the flow channel, and the upper annular steel strip (12) is provided with two sets of second side plates (13) corresponding to the first side plates (5). The first side plate (5) is provided with a relief groove (6) that is inserted into the second side plate (13), and the second side plate (13) is inserted into the relief groove (6).

8. A casting process for a double-belt aluminum casting machine, characterized in that: The application of the double-belt aluminum casting machine according to claim 6 includes the following steps: S1: The molten aluminum is fed into the flow channel of the double-belt aluminum casting machine. At this time, the lower drive wheel (2) is driven to rotate by the first drive motor and the upper drive wheel (10) is driven to rotate by the second drive motor. When the lower drive wheel (2) rotates, it cooperates with the lower driven wheel (3) to drive the lower annular steel belt (4) to move. When the upper drive wheel (10) rotates, it cooperates with the upper driven wheel (11) to drive the upper annular steel belt (12) to move. This allows the lower annular steel belt (4) and the upper annular steel belt (12) to drive the molten aluminum to move forward synchronously, forming a "dynamic forming" process. The molten aluminum gradually solidifies during the movement. S2: Cooling water is supplied to the main conveying pipe (15) through the water supply equipment. After the cooling water is delivered to the main conveying pipe (15), it is sprayed out through the nozzle (22) on the conveying branch pipe (16). The cooling water sprayed out through the conveying branch pipe (16) on the lifting seat (9) falls on the inner wall of the upper annular steel belt (12). At the same time, the cooling water sprayed out by the conveying branch pipe (16) on the second baffle (18) rushes to the inner wall of the lower annular steel belt (4). S3: The cooling water after the upper annular steel belt (12) is cooled can be discharged through the drain pipe (20) on the first baffle (14), and the cooling water after the lower annular steel belt (4) is cooled can be discharged through the drain pipe (20) on the second baffle (18); S4: The first sealing gasket (17) contacts the inner wall of the upper annular steel belt (12), sealing the space between the first baffle (14) and the inner wall of the upper annular steel belt (12), thus preventing spray water from leaking out from the side of the upper annular steel belt (12); S5: The second sealing gasket (19) at the top and bottom of the second baffle (18) contacts the inner wall of the first side plate (5) to seal the inner wall between the second baffle (18) and the lower annular steel belt (4) to prevent spray water from leaking out from the side of the lower annular steel belt (4).

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