A melting furnace for melting aluminum alloy profiles

Abstract

The present invention relates to the field of aluminum alloy profile research and development, and discloses a smelting furnace for aluminum alloy profile smelting, including a heating furnace, a gear groove provided on the outer wall of the heating furnace meshes with a circular gear, one end of the circular gear is fixedly sleeved with a first motor, both ends of the heating furnace are rotatably connected to a support frame, one end of the heating furnace is fixedly connected to a second motor, an output shaft at one end of the second motor is fixedly sleeved with a sprocket group, and one end of the sprocket group is fixedly connected to a first sealing plate. Compared with the prior art, the present application is easy to clean up waste slag and reduces resource consumption caused by heating up again after cooling down when cleaning waste slag.

Description

Technical Field

[0001] The invention relates to the field of aluminum alloy profile research and development, in particular to a smelting furnace used for smelting aluminum alloy profiles. Background Art

[0002] The power supply equipment can reliably realize the intelligent management of the power supply system and battery and match the modulation regulator. It can also be remotely monitored and controlled through the public or dedicated telephone network. Aluminum alloy has the characteristics of low density, good mechanical properties, good processing performance, non-toxicity, excellent conductivity and heat transfer, etc., and is often used to process high-power power supply equipment.

[0003] In the prior art, the Chinese patent document with publication number CN109136692B proposes that the comprehensive mechanical properties of the heat-resistant cast aluminum alloy are higher than those of the ZL201A alloy and the ZL208 alloy, but this alloy does not solve the problem of waste slag generated in the smelting furnace during the manufacturing process of the aluminum alloy. The waste slag affects the service life of the smelting furnace, and it is necessary to manually use round steel to hit the slag on the inner wall of the smelting furnace to make the waste slag separate from the smelting furnace. When hitting the smelting furnace, it is necessary to accurately control the force. Excessive force can easily damage the smelting furnace, which places high operational requirements on the staff. When processing the waste slag, it is necessary to lower the temperature in the melting furnace, and heat the furnace again after the processing is completed. The number of times the waste slag is processed is relatively frequent, so the energy consumption of the smelting furnace is high when it is used. We disclose a smelting furnace for smelting aluminum alloy profiles to meet the needs. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a smelting furnace for smelting aluminum alloy profiles, which has the advantages of easy waste slag treatment and solves a series of problems such as difficulty in waste slag treatment.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a smelting furnace for smelting aluminum alloy profiles, comprising a heating furnace, a gear groove provided in an outer wall of the heating furnace is meshed with a circular gear, one end of the circular gear is fixedly sleeved with a first motor, both ends of the heating furnace are rotatably connected to support frames, one end of the heating furnace is fixedly connected to a second motor, an output shaft at one end of the second motor is fixedly sleeved with a sprocket group, one end of the sprocket group is fixedly connected to a first sealing plate, the first sealing plate is rotatably connected to the heating furnace, one end of the inner wall of the heating furnace is rotatably connected to a stirring body, a slag removal block is fixedly connected to the outer side of the stirring body, and a bottom end of the first sealing plate is provided with a There are several liquid outlet holes, and the middle part of the liquid outlet hole is slidably connected to the second sealing plate, the inner cavity of the movable groove opened in the middle part of the first sealing plate is slidably connected to the first connecting rod, the first connecting rod is fixedly connected to the second sealing plate, one end of the stirring body is rotatably connected to the first sealing cover, the first sealing cover is rotatably connected to the heating furnace, a feeding groove is opened at the upper end of the first sealing cover, the middle part of the third sealing plate rotatably connected to the inner wall of the feeding groove is fixedly connected to the rotating rod, the first limit block fixedly connected to the middle part of the rotating rod is movably engaged with the first sealing cover, the rotating rod is rotatably connected to the first sealing cover, and one side of the first sealing cover is rotatably connected to the second sealing cover.

[0008] Preferably, the slag removal block is in contact with the inner wall of the heating furnace, the stirring body includes a rotating shaft and a rotating plate, a hole is provided in the middle of the rotating plate of the stirring body, there is an angle of thirty degrees between the heating furnace and the horizontal plane, and the slag removal block is a hemisphere.

[0009] Preferably, a heating groove is provided on the outer side of the heating furnace, and a flame nozzle is fixedly connected to the inner wall of the heating groove.

[0010] Preferably, the middle part of the first connecting rod is movably connected to the second connecting rod, one end of the second connecting rod is movably connected to a moving rod, the moving rod is fixedly connected to the heating furnace, one end of the moving rod is fixedly connected to a first limiting ring, a first spring fixedly connected to one end of the moving rod is fixedly connected to a second limiting ring, and the second limiting ring is movably sleeved on the moving rod.

[0011] Preferably, a first limiting rod is movably sleeved on one end of the second connecting rod, a second spring fixedly connected to one end of the first limiting rod is fixedly connected to the second connecting rod, and a limiting groove provided at one end of the heating furnace is adapted to the first limiting rod.

[0012] Preferably, there are two limiting grooves, and the relative values ​​of the two limiting grooves and the moving rod are equal.

[0013] Preferably, the top end of the support body to which the top end of the first sealing cover is fixedly connected is rotatably connected to a third connecting rod, a second limit block rotatably connected to one end of the third connecting rod is movably clamped with a connecting column, the connecting column is fixedly connected to the heating furnace, and a limit spring fixedly connected to the bottom end of the third connecting rod is fixedly connected to the first sealing cover.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present invention provides a smelting furnace for smelting aluminum alloy profiles, which has the following beneficial effects:

[0016] 1. The smelting furnace for smelting aluminum alloy profiles, when in use, stirs the aluminum material in the inner cavity of the heating furnace by the stirring body when the heating furnace rotates, so that the aluminum material is heated more evenly, and the aluminum material attached to the inner wall of the heating furnace is scraped by the slag removal block, so that the waste slag formed by overheating of the aluminum material attached to the inner wall of the heating furnace is reduced, and the waste of aluminum material is reduced. The slag removal block can also scrape the inner wall of the heating furnace and the waste slag formed, so that the waste slag and the inner wall of the heating furnace fall off, which is easy to clean the waste slag, avoids manual shoveling of the waste slag, and damage to the inner wall of the heating furnace. It can also reduce the resource consumption caused by frequently lowering the temperature of the inner cavity of the heating furnace, and save the research and development cost of aluminum alloy profiles.

[0017] 2. The smelting furnace used for smelting aluminum alloy profiles has a liquid outlet hole opened at the bottom end of the first sealing plate, so that the solution can flow out through the liquid outlet hole, and the waste slag is blocked by the liquid outlet hole and retained in the inner cavity of the heating furnace, so as to prevent the waste slag from affecting the subsequent production of the aluminum alloy. The second sealing plate slidably connected to the middle of the liquid outlet hole can limit the solution in the inner cavity of the heating furnace from flowing to the outside of the heating furnace. The position of the second sealing plate is limited by the first connecting rod to control whether the solution flows out of the inner cavity of the heating furnace through the liquid outlet hole. The operation is simple and convenient.

[0018] 3. The smelting furnace used for smelting aluminum alloy profiles injects materials later through the feeding trough, thereby avoiding a large amount of heat consumption caused by repeatedly opening and closing the first sealing cover, reducing energy consumption, and controlling whether the gas at both ends of the feeding trough flows through the third sealing plate by a rotating rod, so that when the third sealing plate rotates, the material added later to the inner cavity of the feeding trough can be pushed into the inner cavity of the heating furnace, so that the production of aluminum alloy proceeds smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of a cutaway three-dimensional structure of a support frame of the present invention;

[0021] Figure 3 It is a schematic diagram of a cutaway three-dimensional structure of a first sealing plate of the present invention;

[0022] Figure 4 It is a schematic diagram of the cutaway three-dimensional structure of the heating furnace of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the connection between the heating furnace and the sprocket assembly of the present invention;

[0024] Figure 6 For the present invention Figure 5 A is an enlarged schematic diagram of the three-dimensional structure;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the connection between the third sealing plate and the feeding trough of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the connection between the third connecting rod and the second limiting block of the present invention.

[0027] In the figure: 1, heating furnace; 2, gear groove; 3, circular gear; 4, first motor; 5, support frame; 6, connecting column; 7, second motor; 8, sprocket group; 9, first sealing plate; 10, stirring body; 11, slag removal block; 12, heating tank; 13, liquid outlet; 14, moving tank; 15, first connecting rod; 16, second sealing plate; 17, second connecting rod; 18, moving rod; 19, first limiting ring; 20, first spring; 21, second limiting ring; 22, limiting groove; 23, first limiting rod; 24, second spring; 25, first sealing cover; 26, feeding tank; 27, third sealing plate; 28, second sealing cover; 29, rotating rod; 30, first limiting block; 31, third connecting rod; 32, support body; 33, second limiting block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a smelting furnace for smelting aluminum alloy profiles.

[0030] In a typical implementation of the present application, Figure 1-8As shown, a smelting furnace for smelting aluminum alloy profiles comprises a heating furnace 1, a gear groove 2 provided on the outer wall of the heating furnace 1 is meshed with a circular gear 3, one end of the circular gear 3 is fixedly sleeved with a first motor 4, both ends of the heating furnace 1 are rotatably connected with a support frame 5, one end of the heating furnace 1 is fixedly connected with a second motor 7, an output shaft at one end of the second motor 7 is fixedly sleeved with a sprocket group 8, one end of the sprocket group 8 is fixedly connected with a first sealing plate 9, the first sealing plate 9 is rotatably connected to the heating furnace 1, one end of the inner wall of the heating furnace 1 is rotatably connected with a stirring body 10, and a slag removal block 11 is fixedly connected to the outer side of the stirring body 10. When in use, the heating furnace 1 is meshed with the circular gear 3 through the gear groove 2, and is fixedly sleeved with the first motor 4 through the circular gear 3, so that the first motor 4 can drive the heating furnace 1 to rotate through the circular gear 3 and the gear groove 2, so that the aluminum alloy material in the inner cavity of the heating furnace 1 rotates, so that the aluminum alloy material in the inner cavity of the heating furnace 1 is heated more evenly, and the generation of some waste slag is reduced. The output shaft of the second motor 7 is connected to the first sealing plate 9 through a sprocket set 8, so that the second motor 7 can drive the first sealing plate 9 to rotate, so that the waste slag in the inner cavity of the heating furnace 1 is moved out of the inner cavity of the heating furnace 1 from one end of the heating furnace 1 due to its own gravity, and the stirring body 10 connected to the inner cavity of the heating furnace 1 is rotated, so that the stirring body 10 can stir the aluminum material in the inner cavity of the heating furnace 1 when the heating furnace 1 rotates, so that the aluminum material is heated more evenly, and the slag removing block 11 on the outer wall of the stirring body 10 can scrape the aluminum material attached to the inner wall of the heating furnace 1, reduce the waste slag formed by excessive heating of the aluminum material attached to the inner wall of the heating furnace 1, and reduce the waste of aluminum material, and can also make the slag removing block 11 scratch the inner wall of the heating furnace 1 and the waste slag formed, so that the waste slag and the inner wall of the heating furnace 1 fall off, which is easy to clean the waste slag, avoid manual shoveling of the waste slag, and damage to the inner wall of the heating furnace 1. It can also reduce the resource consumption caused by frequently lowering the temperature of the inner cavity of the heating furnace 1, and save the development cost of aluminum alloy profiles.

[0031] As a preferred implementation in this embodiment, refer to the attached Figure 1 and 4The slag removal block 11 is fitted with the inner wall of the heating furnace 1, the stirring body 10 includes a rotating shaft and a rotating plate, a hole is opened in the middle of the rotating plate of the stirring body 10, and there is a thirty-degree angle between the heating furnace 1 and the horizontal plane. The slag removal block 11 is a hemisphere, and a heating groove 12 is opened on the outer side of the heating furnace 1. The inner wall of the heating groove 12 is fixedly connected with a flame nozzle. The slag removal block 11 is fitted with the inner wall of the heating furnace 1, and the slag removal block 11 is a hemisphere, so that the slag removal block 11 has a better cleaning effect on the aluminum material and waste slag attached to the inner wall of the heating furnace 1 and is not easy to damage the inner wall of the heating furnace 1, thereby extending the service life of the heating furnace 1. Through the hole opened in the middle of the stirring body 10, the stirring body 10 stirs the aluminum material more evenly. Through the thirty-degree angle between the heating furnace 1 and the horizontal plane, it is convenient for the staff to deliver aluminum material to the inner cavity of the heating furnace 1, and it can also make the solution and waste slag in the inner cavity of the heating furnace 1 easy to move out of the inner cavity of the heating furnace 1.

[0032] As a preferred implementation in this embodiment, refer to the attached Figure 3 and 5 A plurality of liquid outlet holes 13 are provided at the bottom end of the first sealing plate 9, and a second sealing plate 16 is slidably connected to the middle of the liquid outlet hole 13. A first connecting rod 15 is slidably connected to the inner cavity of the movable groove 14 provided in the middle of the first sealing plate 9. The first connecting rod 15 is fixedly connected to the second sealing plate 16. The liquid outlet holes 13 provided at the bottom end of the first sealing plate 9 allow the solution to flow out through the liquid outlet holes 13, and the waste slag is blocked by the liquid outlet holes 13 and retained in the inner cavity of the heating furnace 1, so as to prevent the waste slag from affecting the subsequent production of the aluminum alloy. The second sealing plate 16 slidably connected to the middle of the liquid outlet hole 13 can limit the solution in the inner cavity of the heating furnace 1 from flowing to the outside of the heating furnace 1. The first connecting rod 15 is fixedly connected to the second sealing plate 16, so that the first connecting rod 15 can limit the position of the second sealing plate 16 to control whether the solution flows out of the inner cavity of the heating furnace 1 through the liquid outlet holes 13.

[0033] As a preferred implementation in this embodiment, refer to the attached Figure 5 and 6The middle part of the first connecting rod 15 is movably connected with the second connecting rod 17, and one end of the second connecting rod 17 is movably connected with the moving rod 18, and the moving rod 18 is fixedly connected with the heating furnace 1, and one end of the moving rod 18 is fixedly connected with the first limiting ring 19, and the first spring 20 fixedly connected to one end of the moving rod 18 is fixedly connected with the second limiting ring 21, and the second limiting ring 21 is movably sleeved with the moving rod 18, and one end of the second connecting rod 17 is movably sleeved with the first limiting rod 23, and the second spring 24 fixedly connected to one end of the first limiting rod 23 is fixedly connected with the second connecting rod 17, and the limiting groove 22 opened at one end of the heating furnace 1 is adapted to the first limiting rod 23, and the first connecting rod 15 and the second connecting rod 17 are movably sleeved, so that the connection between the first connecting rod 15 and the second connecting rod 17 can be disconnected, so as to prevent the second connecting rod 17 from affecting the rotation of the first connecting rod 15 and the first sealing plate 9, and when the second connecting rod 17 rotates around the moving rod 18, the second connecting rod 17 can drive the first connecting rod 15 to rotate. A connecting rod 15 moves upward, so that the second sealing plate 16 moves upward, so that the solution flows to the outside of the heating furnace 1 through the liquid outlet 13. The first limiting ring 19 fixedly connected to one end of the moving rod 18 can limit the position of the second connecting rod 17. The first spring 20 and the second limiting ring 21 connected to one end of the moving rod 18 can limit the position of the second connecting rod 17 after moving, so that the connection between the second connecting rod 17 and the first connecting rod 15 is stable, and the second connecting rod 17 can be moved toward one end of the moving rod 18, so that the connection between the second connecting rod 17 and the first connecting rod 15 is disconnected, and the second connecting rod 17 is prevented from affecting the rotation of the first connecting rod 15 and the first sealing plate 9. The limiting groove 22 is adapted to the first limiting rod 23, so that the limiting groove 22 can limit the position of the first limiting rod 23 and the second connecting rod 17 after moving, so that the heating furnace 1 can limit the position of the first connecting rod 15 and the second sealing plate 16 after moving, so that the device is easy to operate and use.

[0034] As a preferred implementation in this embodiment, refer to the attached Figure 5 and 6 There are two limit grooves 22 and the relative values ​​of the two limit grooves 22 and the moving rod 18 are equal. One end of the stirring body 10 is rotatably connected with a first sealing cover 25. The first sealing cover 25 is rotatably connected to the heating furnace 1. The relative values ​​of the two limit grooves 22 and the moving rod 18 are equal, so that the first limit rod 23 can still be adapted to the limit groove 22 after the second connecting rod 17 rotates. The stirring body 10 is rotatably connected to the first sealing cover 25, so that the first sealing cover 25 can limit the rotation of the stirring body 10, so that the stirring body 10 can be used normally, and the aluminum alloy in the inner cavity of the heating furnace 1 is stirred more evenly.

[0035] As a preferred implementation in this embodiment, refer to the attached Figure 7 and 8A feeding groove 26 is provided at the upper end of the first sealing cover 25, and a rotating rod 29 is fixedly connected to the middle of the third sealing plate 27 rotatably connected to the inner wall of the feeding groove 26, and a first limit block 30 fixedly connected to the middle of the rotating rod 29 is movably connected to the first sealing cover 25, and the rotating rod 29 is rotatably connected to the first sealing cover 25. A second sealing cover 28 is rotatably connected to one side of the first sealing cover 25, and a support body 32 fixedly connected to the top of the first sealing cover 25 is rotatably connected to the top of the third connecting rod 31, and a second limit block 33 rotatably connected to one end of the third connecting rod 31 is movably connected to a connecting column 6, and the connecting column 6 is fixedly connected to the heating furnace 1. A limit spring fixedly connected to the bottom end of the third connecting rod 31 is fixedly connected to the first sealing cover 25, and the feeding groove 26 at the upper end of the first sealing cover 25 allows the aluminum alloy to be made through the material when it is injected later. The feeding trough 26 is injected to avoid a large amount of heat consumption caused by repeatedly opening and closing the first sealing cover 25, thereby reducing energy consumption. The rotating rod 29 is fixedly connected to the third sealing plate 27 so that the rotating rod 29 can limit the position of the third sealing plate 27, so that the rotating rod 29 can control whether the gas at both ends of the feeding trough 26 flows through the third sealing plate 27, so that when the third sealing plate 27 is rotated, the material added to the inner cavity of the feeding trough 26 later can be pushed into the inner cavity of the heating furnace 1, so that the production of aluminum alloy can proceed smoothly. The support body 32 is rotatably connected to the third connecting rod 31 so that the support body 32 can limit the position of the support body 32, and is clamped with the connecting column 6 through the second limit block 33, and is fixedly connected to the heating furnace 1 through the connecting column 6, so that the second limit block 33 is connected to the heating furnace 1 to limit the position of the first sealing cover 25 after rotation.

[0036] The working principle of the present invention is as follows: when in use, the first motor 4 drives the heating furnace 1 to rotate through the circular gear 3 and the gear groove 2, so that the aluminum alloy material in the inner cavity of the heating furnace 1 rotates, so that the aluminum alloy material in the inner cavity of the heating furnace 1 is heated more evenly, and the generation of waste slag is reduced; the first sealing plate 9 is driven to rotate by the second motor 7, so that the waste slag in the inner cavity of the heating furnace 1 moves out of the inner cavity of the heating furnace 1 from one end of the heating furnace 1 under the influence of its own gravity; when the heating furnace 1 rotates, the stirring body 10 stirs the aluminum material in the inner cavity of the heating furnace 1, so that the aluminum material The heating is more uniform. The aluminum material attached to the inner wall of the heating furnace 1 is scraped by the slag removal block 11, and the waste slag formed by overheating of the aluminum material attached to the inner wall of the heating furnace 1 is reduced, thereby reducing the waste of aluminum material. The slag removal block 11 can also scrape the inner wall of the heating furnace 1 and the waste slag formed, so that the waste slag and the inner wall of the heating furnace 1 fall off, making it easy to clean the waste slag, avoiding manual shoveling of the waste slag and damage to the inner wall of the heating furnace 1. It can also reduce the resource consumption caused by frequently lowering the temperature of the inner cavity of the heating furnace 1, saving the development cost of aluminum alloy profiles.

[0037] The liquid outlet hole 13 opened at the bottom end of the first sealing plate 9 allows the solution to flow out through the liquid outlet hole 13, and the waste slag is blocked by the liquid outlet hole 13 and retained in the inner cavity of the heating furnace 1, so as to prevent the waste slag from affecting the subsequent production of aluminum alloy. The second sealing plate 16 slidably connected to the middle of the liquid outlet hole 13 can limit the solution in the inner cavity of the heating furnace 1 from flowing to the outside of the heating furnace 1. The position of the second sealing plate 16 is limited by the first connecting rod 15 to control whether the solution flows out of the inner cavity of the heating furnace 1 through the liquid outlet hole 13. The operation is simple and convenient.

[0038] By injecting the material injected later through the feeding groove 26, a large amount of heat consumption caused by repeated opening and closing of the first sealing cover 25 is avoided, and energy consumption is reduced. The gas flow at both ends of the feeding groove 26 is controlled by the rotating rod 29 through the third sealing plate 27, so that when the third sealing plate 27 rotates, the material added later to the inner cavity of the feeding groove 26 can be pushed into the inner cavity of the heating furnace 1, so that the production of aluminum alloy can proceed smoothly.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smelting furnace for smelting aluminum alloy profiles, characterized in that: The invention comprises a heating furnace (1), wherein a gear groove (2) provided on the outer wall of the heating furnace (1) is meshed with a circular gear (3), one end of the circular gear (3) is fixedly sleeved with a first motor (4), both ends of the heating furnace (1) are rotatably connected to support frames (5), one end of the heating furnace (1) is fixedly connected to a second motor (7), an output shaft at one end of the second motor (7) is fixedly sleeved with a sprocket group (8), one end of the sprocket group (8) is fixedly connected to a first sealing plate (9), the first sealing plate (9) is rotatably connected to the heating furnace (1), one end of the inner wall of the heating furnace (1) is rotatably connected to a stirring body (10), the outer side of the stirring body (10) is fixedly connected to a slag removal block (11), a plurality of liquid outlet holes (13) are provided at the bottom end of the first sealing plate (9), and a second sealing member (11) is slidably connected to the middle of the liquid outlet hole (13). The first sealing plate (16) comprises a movable groove (14) provided in the middle of the first sealing plate (9) and a first connecting rod (15) is slidably connected to the inner cavity of the movable groove (14) provided in the middle of the first sealing plate (9), and the first connecting rod (15) is fixedly connected to the second sealing plate (16). One end of the stirring body (10) is rotatably connected to a first sealing cover (25), and the first sealing cover (25) is rotatably connected to the heating furnace (1). A feeding groove (26) is provided at the upper end of the first sealing cover (25), and a rotating rod (29) is fixedly connected to the middle of a third sealing plate (27) rotatably connected to the inner wall of the feeding groove (26), and a first limiting block (30) fixedly connected to the middle of the rotating rod (29) is movably engaged with the first sealing cover (25), and the rotating rod (29) is rotatably connected to the first sealing cover (25). A second sealing cover (28) is rotatably connected to one side of the first sealing cover (25).

2. The smelting furnace for smelting aluminum alloy profiles according to claim 1, characterized in that: The slag removal block (11) is fitted with the inner wall of the heating furnace (1); the stirring body (10) comprises a rotating shaft and a rotating plate; a hole is provided in the middle of the rotating plate of the stirring body (10); there is an angle of thirty degrees between the heating furnace (1) and the horizontal plane; and the slag removal block (11) is a hemispherical shape.

3. The smelting furnace for smelting aluminum alloy profiles according to claim 1, characterized in that: A heating groove (12) is provided on the outer side of the heating furnace (1), and a flame nozzle is fixedly connected to the inner wall of the heating groove (12).

4. The smelting furnace for smelting aluminum alloy profiles according to claim 1, characterized in that: The middle part of the first connecting rod (15) is movably connected to the second connecting rod (17), one end of the second connecting rod (17) is movably connected to a moving rod (18), the moving rod (18) is fixedly connected to the heating furnace (1), one end of the moving rod (18) is fixedly connected to a first limiting ring (19), a first spring (20) fixedly connected to one end of the moving rod (18) is fixedly connected to a second limiting ring (21), and the second limiting ring (21) is movably sleeved with the moving rod (18).

5. The smelting furnace for smelting aluminum alloy profiles according to claim 4, characterized in that: A first limiting rod (23) is movably sleeved on one end of the second connecting rod (17); a second spring (24) fixedly connected to one end of the first limiting rod (23) is fixedly connected to the second connecting rod (17); and a limiting groove (22) provided at one end of the heating furnace (1) is adapted to fit the first limiting rod (23).

6. The smelting furnace for smelting aluminum alloy profiles according to claim 5, characterized in that: There are two limit grooves (22), and the relative values ​​of the two limit grooves (22) and the moving rod (18) are equal.

7. The smelting furnace for smelting aluminum alloy profiles according to claim 1, characterized in that: The top end of the support body (32) fixedly connected to the top end of the first sealing cover (25) is rotatably connected to a third connecting rod (31); a second limiting block (33) rotatably connected to one end of the third connecting rod (31) is movably connected to a connecting column (6); the connecting column (6) is fixedly connected to the heating furnace (1); and a limiting spring fixedly connected to the bottom end of the third connecting rod (31) is fixedly connected to the first sealing cover (25).

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