Automatic liquid supplementing device

Abstract

The invention discloses an automatic liquid supplementing device, and belongs to the technical field of line concentration boxes. An automatic liquid supplementing device comprises a melting furnace, a foaming pool and a liquid storage pool are arranged in the melting furnace, a liquid level monitoring assembly is movably installed on one side of the melting furnace, and the liquid level in the liquid storage pool is monitored through the liquid level monitoring assembly, so that the liquid levels in the liquid storage pool and the foaming pool are convenient to monitor; the PLC drives an air cylinder in the liquid supplementing assembly to start, the air cylinder drives a liquid supplementing box to overturn upwards, so that molten aluminum in the liquid supplementing box is conveniently poured into the liquid storage pool through a liquid outlet nozzle, the height of the liquid level in the liquid storage pool is increased, the molten aluminum is supplemented in time, when the liquid supplementing box overturns upwards, the liquid outlet nozzle is separated from an arc-shaped sealing plate, the liquid outlet nozzle is convenient to open, and the liquid supplementing effect is improved. And after the liquid supplementing box is reset, the liquid outlet nozzle and the arc-shaped sealing plate are mutually closed, so that the heat loss at the liquid outlet nozzle is conveniently reduced.

Description

Technical Field

[0001] This invention relates to the field of fluid replenishment devices, and more specifically, to an automatic fluid replenishment device. Background Technology

[0002] In the process of producing foamed aluminum by the blowing method, as the foam continues to form, the aluminum liquid in the foaming crucible will be continuously consumed. Since the height of the aluminum liquid is a key parameter affecting the foaming state of the foamed aluminum, the aluminum liquid must be continuously replenished during the foaming process.

[0003] Chinese patent application CN216919373U discloses an automatic liquid replenishment device. This device includes a liquid storage tank located beside a foaming crucible, containing molten aluminum, and is driven vertically by a drive mechanism. The bottom of the storage tank is connected to the bottom of the foaming crucible via a flexible guide pipe. Furthermore, a weighing module is located at the bottom of the foaming crucible to weigh the amount of molten aluminum inside. When the weighing module detects that the molten aluminum level is lower than a preset value, it sends a signal to the drive mechanism, which then moves the storage tank upwards. Once the molten aluminum level reaches the preset value, the weighing module sends another signal, causing the drive mechanism to stop moving the storage tank.

[0004] The above-mentioned technical solution can automatically replenish the aluminum liquid in the foaming crucible, which avoids the problem of production interruption caused by aluminum liquid replenishment in the blowing method in the prior art, and improves the accuracy and efficiency of aluminum liquid replenishment. However, in practical applications, when the device replenishes aluminum liquid to the foaming crucible through the flexible guide tube, the aluminum liquid is prone to solidification when it cools, and solidified material is easily formed inside the flexible guide tube. It is also difficult to clean the solidified material on the inner wall of the tube afterward. Therefore, this application proposes an automatic liquid replenishment device to solve this problem. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic fluid replenishment device to solve the problems mentioned in the background art above: To achieve the above objectives, the present invention provides the following technical solution: An automatic liquid replenishment device includes a melting furnace, which has a foaming tank and a liquid storage tank. A liquid level monitoring component is movably installed on one side of the melting furnace to monitor the liquid level in the liquid storage tank. A liquid replenishment assembly is movably installed on the other side of the melting furnace. The liquid replenishment assembly replenishes the liquid in the storage tank. The liquid replenishment assembly includes a liquid replenishment tank, a liquid outlet, a heating tank, and a cylinder. The liquid replenishment tank is movably installed on one side of the melting furnace. The heating tank is fixedly connected to the side of the liquid replenishment tank. The liquid outlet is fixedly connected to the upper part of the liquid replenishment tank. The cylinder is movably installed at the lower part of the melting furnace, and the output shaft of the cylinder drives the liquid replenishment tank to flip upward. A sealing assembly is movably installed above the liquid outlet to cover the liquid outlet and reduce the leakage of hot air from the liquid replenishment tank.

[0006] By adopting the above technical solution, the liquid level monitoring component monitors the liquid level in the storage tank. When the liquid level drops to the warning position, the liquid replenishment component drives the liquid replenishment tank to flip upward, so that the aluminum liquid inside is discharged into the storage tank through the liquid outlet, raising the liquid level in the foaming tank. When the liquid replenishment tank flips, it separates from the arc-shaped sealing plate in the sealing nozzle component, making it easy to discharge the aluminum liquid. When the liquid replenishment tank is reset, it closes with the arc-shaped sealing plate, thereby reducing heat leakage and improving the heat preservation capacity.

[0007] Preferably, a baffle is fixedly connected inside the melting furnace, the baffle dividing the foaming tank and the liquid storage tank, and the bottoms of the foaming tank and the liquid storage tank are interconnected.

[0008] By adopting the above technical solution, the foaming tank and the liquid storage tank are interconnected through the principle of communicating vessels, so that the liquid levels in the foaming tank and the liquid storage tank are consistent.

[0009] Preferably, the liquid level monitoring component includes a control frame, a lifting rod, a movable rod, and a buoy. The control frame is fixedly connected to the side of the melting furnace, the lifting rod is movably connected to the control frame, the movable rod is fixedly connected to one side of the lifting rod, and the buoy is fixedly connected to the lower end of the movable rod. The buoy floats in the molten liquid in the storage tank.

[0010] By adopting the above technical solution, the lifting rod and the movable rod move up and down synchronously, and the buoy drives the lifting rod and the movable rod to move upward through buoyancy.

[0011] Preferably, the liquid level monitoring assembly further includes a detection plate, a sensor frame, an infrared sensor, and a PLC controller. The detection plate is fixedly connected to the other side of the lifting rod, the sensor frame is fixedly connected to the control frame, the infrared sensor is fixedly connected to the control frame, the detection plate is located above the infrared sensor, and the PLC controller is fixedly connected to the control frame.

[0012] By adopting the above technical solution, the infrared sensor detects the height of the detection plate, thereby alerting the liquid level in the storage tank.

[0013] Preferably, the replenishment assembly further includes a first connecting plate, a first connecting rod, a first bearing, and a support base. The first connecting plate is fixedly connected to both sides of the replenishment tank. One end of the first connecting rod is fixedly connected to the first connecting plate. The support base is fixedly connected to the melting furnace. The other end of the first connecting rod is rotatably connected to the support base through the first bearing.

[0014] By adopting the above technical solution, the replenishment tank can be flipped upwards.

[0015] Preferably, the replenishment assembly further includes a liquid inlet, a sealing cap, and an electric heating wire. The liquid inlet is fixedly connected to the replenishment tank, the sealing cap is threadedly connected to the sealing cap, one side of the replenishment tank is in contact with the outer wall of the melting furnace, the heating box is located on the other side of the replenishment tank, and the electric heating wire is fixedly connected to the inner side of the heating box.

[0016] By adopting the above technical solution, one side of the replenishment tank is in contact with the melting furnace, thereby utilizing the residual heat in the melting furnace and reducing the consumption of the heating box.

[0017] Preferably, the fluid replenishment component further includes a first connection hole and a second connection hole, which are respectively located at the bottom of the cylinder and the end of the output shaft.

[0018] Preferably, the liquid replenishment assembly further includes a first support rod, a second support rod, and a liquid replenishment port. The first support rod is fixedly connected to the outer wall of the melting furnace, the second support rod is fixedly connected to the liquid replenishment tank, the cylinder is rotatably connected to the first support rod and the second support rod through the first connection hole and the second connection hole, respectively, the liquid replenishment port is opened on the melting furnace, and the liquid outlet is movably installed in the liquid replenishment port.

[0019] By adopting the above technical solution, the cylinder drives the replenishment tank to rotate, making it easy to flip the replenishment tank upwards.

[0020] Preferably, the sealing assembly includes a support frame, an arc-shaped sealing plate, a second connecting rod, a second connecting plate, and a spring. The support frame is fixedly connected to the melting furnace, the second connecting rod is fixedly connected to the arc-shaped sealing plate, the second connecting plate is fixedly connected to the second connecting rod, the second connecting rod is movably mounted on the support frame, and the spring is movably mounted on the second connecting rod, with the spring located between the support frame and the second connecting plate.

[0021] By adopting the above technical solution, the compressed spring pushes the arc-shaped sealing plate downward, making the arc-shaped sealing plate and the liquid outlet close more tightly, thus reducing heat consumption.

[0022] Preferably, the sealing assembly further includes an adjusting plate, a positioning tube, an adjusting bolt, a bottom block, and a fixing bolt. The adjusting plate is fixedly connected to the upper end of the second connecting rod and is located above the support frame. The positioning tube is fixedly connected to the adjusting plate. The adjusting bolt and the fixing bolt are threadedly connected to the positioning tube. The bottom block is fixedly connected to the lower end of the adjusting bolt. The bottom block at the lower end of the adjusting bolt is in contact with the plate of the support frame. The fixing bolt fixes the adjusting bolt.

[0023] By adopting the above technical solution, the rotation of the adjusting bolt drives the second connecting rod to move up and down, thereby adjusting the tension of the spring.

[0024] Compared with the prior art, the beneficial effects of the present invention are: 1) When this automatic liquid replenishment device is in use, the float floats by the buoyancy of the aluminum liquid through the liquid level monitoring component. When the liquid level in the storage tank is at its maximum height, the detection plate is at its maximum height. After that, the liquid level in the storage tank decreases, and the height of the detection plate decreases synchronously. When the height of the detection plate enters the preset warning height, the PLC controller performs subsequent operations to make the liquid level in the storage tank easy to monitor and warn.

[0025] 2) When this automatic liquid replenishment device is in use, the PLC controller drives the output shaft of the cylinder to extend after the detection plate reaches the warning height, pushing the liquid replenishment tank to flip upward, so that the aluminum liquid in the liquid replenishment tank can easily enter the storage tank, raising the liquid level in the storage tank and foaming tank. The float moves upward again, the height of the detection plate increases, and the liquid replenishment ends when the detection plate moves to the predetermined position. The liquid replenishment tank is reset, making it easy for the storage tank to be automatically replenished.

[0026] 3) When this automatic liquid replenishment device is in use, the liquid outlet is closed with the arc-shaped sealing plate through the set sealing assembly. At this time, the liquid replenishment box is attached to the side of the melting furnace. The closed liquid outlet can reduce heat leakage from the liquid outlet. When the liquid replenishment box is flipped upward, the liquid outlet separates from the arc-shaped sealing plate, making it easier for the aluminum liquid in the liquid replenishment box to be discharged and avoid being obstructed by the arc-shaped sealing plate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the liquid level monitoring component of the present invention; Figure 4 This is a schematic diagram of the structure of the fluid replenishment tank of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a cross-sectional schematic diagram of the melting furnace, replenishment tank, and heating tank of the present invention; Figure 7 This is a schematic diagram of the sealing assembly of the present invention; Figure 8 This is a schematic diagram of the structure of the adjusting bolt and fixing bolt of the present invention.

[0028] The diagram labels are as follows: 1. Melting furnace; 101. Baffle; 102. Foaming tank; 103. Storage tank; 2. Liquid level monitoring assembly; 201. Control frame; 202. Lifting rod; 203. Movable rod; 204. Buoy; 205. Detection plate; 206. Sensor frame; 207. Infrared sensor; 208. PLC controller; 3. Liquid replenishment assembly; 301. Liquid replenishment tank; 302. Connecting plate No. 1; 303. Connecting rod No. 1; 304. Bearing No. 1; 305. Support base; 306. Liquid inlet; 307. 308. Sealing cap; 309. Dispensing nozzle; 310. Heating box; 311. Electric heating wire; 312. Cylinder; 31101. No. 1 connecting hole; 31102. No. 2 connecting hole; 313. No. 1 support rod; 314. No. 2 support rod; 315. Replenishment port; 4. Sealing nozzle assembly; 401. Support frame; 402. Arc-shaped sealing plate; 403. No. 2 connecting rod; 404. No. 2 connecting plate; 405. Spring; 406. Adjusting plate; 407. Positioning tube; 408. Adjusting bolt; 409. Base block; 410. Fixing bolt. Detailed Implementation

[0029] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 An automatic liquid replenishment device includes a melting furnace 1, which has a foaming tank 102 and a liquid storage tank 103. A liquid level monitoring component 2 is movably installed on one side of the melting furnace 1. The liquid level monitoring component 2 monitors the liquid level in the liquid storage tank 103. By monitoring the liquid level in the liquid storage tank 103, the liquid level in the foaming tank 102 can be monitored.

[0030] A baffle 101 is fixedly connected inside the melting furnace 1. The baffle 101 divides the foaming tank 102 and the liquid storage tank 103. The bottoms of the foaming tank 102 and the liquid storage tank 103 are connected to each other, so that the liquid levels of the foaming tank 102 and the liquid storage tank 103 are the same.

[0031] The liquid level monitoring component 2 includes a control frame 201, a lifting rod 202, a movable rod 203, and a float 204. The control frame 201 is fixedly connected to the side of the melting furnace 1. The lifting rod 202 is movably connected to the control frame 201, with the rods on both sides of the lifting rod 202 inserted downwards into the control frame 201. The control frame 201 has through holes corresponding to the positions of the rods on both sides of the lifting rod 202. The movable rod 203 is fixedly connected to one side of the lifting rod 202, with its lower end inserted into the liquid storage tank 103. The float 204 is fixedly connected to the lower end of the movable rod 203 and floats in the molten liquid in the liquid storage tank 103. The float 204 is a hollow float, which facilitates driving the movable rod 203 and the lifting rod 202 to move upwards.

[0032] The liquid level monitoring component 2 also includes a detection plate 205, a sensor frame 206, an infrared sensor 207, and a PLC controller 208. The detection plate 205 is fixedly connected to the other side of the lifting rod 202 and moves synchronously with the lifting rod 202. The sensor frame 206 is fixedly connected to the control frame 201, and the infrared sensor 207 is fixedly connected to the control frame 201. The detection plate 205 is located above the infrared sensor 207. The PLC controller 208 is fixedly connected to the control frame 201, and the infrared sensor 207 detects the height of the detection plate 205.

[0033] The steps of using this invention are as follows: When this automatic liquid replenishment device is used, when the aluminum liquid in the melting furnace 1 is exhausted, the float 204 is located on the bottom wall of the liquid storage tank 103, and the detection plate 205 is located above the infrared sensor 207. At this time, the infrared sensor 207 measures the distance between itself and the detection plate 205 and sets it as the initial height. Each time the PLC controller 208 monitors the height of the detection plate 205, it needs to set the initial height to obtain the approximate height of the liquid level in the melting furnace 1 at this time. When the molten aluminum in the melting furnace 1 reaches its maximum height, the float 204 is raised, and the detection plate 205 reaches its maximum height. At this time, the infrared sensor 207 monitors the height of the detection plate 205 and subtracts the initial height to obtain the liquid level of the foaming tank 102 and the storage tank 103 in the melting furnace 1. Subsequently, the infrared sensor 207 continuously monitors the height of the detection plate 205. As the molten aluminum in the melting furnace 1 is continuously consumed, the liquid level continuously decreases. When the height of the detection plate 205 decreases to the preset warning height range, the PLC controller 208 controls the liquid replenishment component 3 to work, thereby replenishing the molten aluminum in a timely manner by monitoring the liquid level of the melting furnace 1, so as to avoid affecting the production of foamed aluminum.

[0034] Example 2, please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 The difference from embodiment 1 is that a liquid replenishment assembly 3 is movably installed on the other side of the melting furnace 1. The liquid replenishment assembly 3 replenishes liquid in the liquid storage tank 103. The liquid replenishment assembly 3 includes a liquid replenishment tank 301, a liquid outlet 308, a heating box 309, and a cylinder 311. The liquid replenishment tank 301 is movably installed on one side of the melting furnace 1. The heating box 309 is fixedly connected to the side of the liquid replenishment tank 301. The liquid replenishment tank 301 is located between the melting furnace 1 and the heating box 309. The liquid outlet 308 is fixedly connected to the upper part of the liquid replenishment tank 301 and pours the aluminum liquid in the liquid replenishment tank 301. The cylinder 311 is movably installed at the lower part of the melting furnace 1, and the output shaft of the cylinder 311 drives the liquid replenishment tank 301 to flip upward.

[0035] The replenishment assembly 3 also includes a first connecting plate 302, a first connecting rod 303, a first bearing 304, and a support base 305. The first connecting plate 302 is fixedly connected to both sides of the replenishment tank 301. One end of the first connecting rod 303 is fixedly connected to the first connecting plate 302. The support base 305 is fixedly connected to the melting furnace 1 and is located on both sides of the melting furnace 1. The position of the support base 305 corresponds to the position of the first connecting rod 303. The other end of the first connecting rod 303 is rotatably connected to the support base 305 through the first bearing 304, so that the replenishment tank 301 can rotate around the center position of the first connecting rod 303.

[0036] The liquid replenishment assembly 3 also includes a liquid inlet 306, a sealing cap 307, and an electric heating wire 310. The liquid inlet 306 is fixedly connected to the liquid replenishment tank 301, allowing external molten aluminum to easily enter the liquid inlet 306. The sealing cap 307 is threadedly connected to the sealing cap 307. One side of the liquid replenishment tank 301 is in contact with the outer wall of the melting furnace 1. The heating box 309 is located on the other side of the liquid replenishment tank 301. The electric heating wire 310 is fixedly connected to the inner side of the heating box 309. One side of the liquid replenishment tank 301 is in contact with the melting furnace 1, which facilitates the absorption of heat from the melting furnace 1 and avoids heat waste from the melting furnace 1. The heating box 309 heats the other side of the melting furnace 1, which helps to maintain the temperature of the molten aluminum in the melting furnace 1 and keep it in a molten state. Since the other side of the liquid replenishment tank 301 is in contact with the melting furnace 1, it can absorb residual heat, which allows the heating box 309 to reduce heat output and reduce energy consumption.

[0037] The fluid replenishment assembly 3 also includes a first connection hole 31101 and a second connection hole 31102, which are respectively located at the bottom of the cylinder 311 and the end of the output shaft.

[0038] The liquid replenishment assembly 3 also includes a first support rod 312, a second support rod 313, and a liquid replenishment port 314. The first support rod 312 is fixedly connected to the outer wall of the melting furnace 1, and the second support rod 313 is fixedly connected to the liquid replenishment tank 301. The cylinder 311 is rotatably connected to the first support rod 312 and the second support rod 313 through the first connection hole 31101 and the second connection hole 31102, respectively, so that when the output shaft of the cylinder 311 extends, it can rotate appropriately through the first connection hole 31101 and the second connection hole 31102. The liquid replenishment port 314 is opened on the melting furnace 1, and the liquid outlet 308 is movably installed in the liquid replenishment port 314.

[0039] The steps of using this invention are as follows: When this automatic liquid replenishment device is in use, when the liquid level in the storage tank 103 reaches the warning position, the PLC controller 208 controls the cylinder 311 to start, so that the output shaft of the cylinder 311 extends, pushes the second support rod 313 to move upward, and pushes the replenishment tank 301, which is fixedly connected to the second support rod 313, to flip upward. The replenishment tank 301 flips upward via the first connecting rod 303 and the first bearing 304, causing the outlet 308 to slide downward and separate from the arc-shaped sealing plate 402. This allows the replenishment tank 301 to be discharged into the storage tank 103 through the outlet 308, raising the liquid level of the storage tank 103 and the foaming tank 102. When the height of the storage tank 103 is raised to the appropriate position, the cylinder 311 resets, causing the replenishment tank 301 to reset. One side of the replenishment tank 301 then fits against the side wall of the melting furnace 1, and the outlet 308 closes again with the arc-shaped sealing plate 402, thus completing the automatic replenishment of the storage tank 103 and the foaming tank 102. The liquid replenishment tank 301 and the liquid outlet 308 structure replenish the liquid storage tank 103, avoiding the use of long pipelines to transport aluminum liquid and preventing the aluminum liquid from solidifying in the pipeline when it encounters cold. In addition, the outlet position of the liquid outlet 308 is arc-shaped, making its inner wall easy to clean manually.

[0040] Example 3, please refer to Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 The difference from embodiment 2 is that a sealing assembly 4 is movably installed above the liquid outlet 308, which covers the liquid outlet 308 to reduce the leakage of hot air in the liquid replenishment tank 301.

[0041] The sealing assembly 4 includes a support frame 401, an arc-shaped sealing plate 402, a second connecting rod 403, a second connecting plate 404, and a spring 405. The support frame 401 is fixedly connected to the melting furnace 1. The second connecting rod 403 is fixedly connected to the arc-shaped sealing plate 402. The second connecting rod 403 drives the arc-shaped sealing plate 402 to move up and down. The second connecting plate 404 is fixedly connected to the second connecting rod 403. The second connecting rod 403 is movably mounted on the support frame 401. The support frame 401 has a through hole corresponding to the position of the second connecting rod 403. The spring 405 is movably mounted on the second connecting rod 403 and is located between the support frame 401 and the second connecting plate 404. The compressed spring 405 pushes the second connecting plate 404 to move downward, thereby driving the arc-shaped sealing plate 402 to move downward.

[0042] The sealing assembly 4 also includes an adjusting plate 406, a positioning tube 407, an adjusting bolt 408, a base block 409, and a fixing bolt 410. The adjusting plate 406 is fixedly connected to the upper end of the second connecting rod 403, and is located above the support frame 401. The positioning tube 407 is fixedly connected to the adjusting plate 406. The adjusting bolt 408 and the fixing bolt 410 are threadedly connected to the positioning tube 407. The base block 409 is fixedly connected to the lower end of the adjusting bolt 408. The bottom block 409 at the lower end of the bolt 408 contacts the plate of the support frame 401, and the bottom block 409 abuts against the support frame 401. Since the position of the support frame 401 is fixed, rotating the adjusting bolt 408 moves the adjusting plate 406 up or down, pushing the second connecting rod 403 up or down, thereby further compressing or releasing the spring 405, thereby adjusting the position of the arc-shaped sealing plate 402. The fixing bolt 410 fixes the adjusting bolt 408.

[0043] The steps of using this invention are as follows: When this automatic liquid replenishment device is in use, after the liquid replenishment tank 301 is attached to the side of the melting furnace 1, the liquid outlet 308 and the arc-shaped sealing plate 402 close to each other, thereby reducing the heat loss from the liquid outlet 308 in the liquid replenishment tank 301. By rotating the adjusting bolt 408, the bottom block 409 moves up or down. When the bottom block 409 moves down, the adjusting plate 406 moves up, pulling the second connecting rod 403 up, which further compresses the spring 405. The second connecting rod 403 pulls the arc-shaped sealing plate 402 up. When the bottom block 409 moves up, the compressed spring 405 is partially released, pushing the arc-shaped sealing plate 402 down. The second connecting rod 403 moves down, causing the adjusting plate 406 to move down. When the bottom block 409 contacts the support frame 401, the downward movement stops, thereby adjusting the position of the arc-shaped sealing plate 402. When the replenishment tank 301 is flipped upwards, the liquid outlet 308 can be separated from the arc-shaped sealing plate 402, making it easier for the liquid inside to flow out, avoiding the need for manual opening of the liquid outlet 308, and improving the convenience of operation.

[0044] 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 preferred examples and are not intended to limit 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. An automatic liquid replenishment device, comprising a melting furnace (1), characterized in that: The melting furnace (1) is provided with a foaming tank (102) and a liquid storage tank (103). A liquid level monitoring component (2) is movably installed on one side of the melting furnace (1). The liquid level monitoring component (2) monitors the liquid level in the liquid storage tank (103). A liquid replenishment assembly (3) is movably installed on the other side of the melting furnace (1). The liquid replenishment assembly (3) replenishes liquid in the liquid storage tank (103). The liquid replenishment assembly (3) includes a liquid replenishment tank (301), a liquid outlet (308), a heating tank (309), and a cylinder (311). The liquid replenishment tank (301) is movably installed on one side of the melting furnace (1). The heating tank (309) is fixedly connected to the side of the liquid replenishment tank (301). The liquid outlet (308) is fixedly connected to the upper part of the liquid replenishment tank (301). The cylinder (311) is movably installed on the lower part of the melting furnace (1), and the output shaft of the cylinder (311) drives the liquid replenishment tank (301) to rotate upward. A sealing assembly (4) is movably installed above the liquid outlet (308). The sealing assembly (4) covers the liquid outlet (308) to reduce the leakage of hot air in the liquid replenishment tank (301).

2. The automatic fluid replenishment device according to claim 1, characterized in that: A baffle (101) is fixedly connected inside the melting furnace (1). The baffle (101) divides the foaming tank (102) and the liquid storage tank (103). The bottoms of the foaming tank (102) and the liquid storage tank (103) are connected to each other.

3. The automatic fluid replenishment device according to claim 1, characterized in that: The liquid level monitoring component (2) includes a control frame (201), a lifting rod (202), a movable rod (203), and a buoy (204). The control frame (201) is fixedly connected to the side of the melting furnace (1). The lifting rod (202) is movably connected to the control frame (201). The movable rod (203) is fixedly connected to one side of the lifting rod (202). The buoy (204) is fixedly connected to the lower end of the movable rod (203). The buoy (204) floats in the molten liquid in the storage tank (103).

4. An automatic fluid replenishment device according to claim 3, characterized in that: The liquid level monitoring component (2) also includes a detection plate (205), a sensor frame (206), an infrared sensor (207), and a PLC controller (208). The detection plate (205) is fixedly connected to the other side of the lifting rod (202). The sensor frame (206) is fixedly connected to the control frame (201). The infrared sensor (207) is fixedly connected to the control frame (201). The detection plate (205) is located above the infrared sensor (207). The PLC controller (208) is fixedly connected to the control frame (201).

5. An automatic fluid replenishment device according to claim 1, characterized in that: The replenishment assembly (3) also includes a first connecting plate (302), a first connecting rod (303), a first bearing (304), and a support base (305). The first connecting plate (302) is fixedly connected to both sides of the replenishment tank (301). One end of the first connecting rod (303) is fixedly connected to the first connecting plate (302). The support base (305) is fixedly connected to the melting furnace (1). The other end of the first connecting rod (303) is rotatably connected to the support base (305) through the first bearing (304).

6. An automatic fluid replenishment device according to claim 5, characterized in that: The replenishment component (3) also includes a liquid inlet (306), a sealing cap (307), and an electric heating wire (310). The liquid inlet (306) is fixedly connected to the replenishment tank (301), and the sealing cap (307) is threadedly connected to the sealing cap (307). One side of the replenishment tank (301) is in contact with the outer wall of the melting furnace (1), and the heating box (309) is located on the other side of the replenishment tank (301). The electric heating wire (310) is fixedly connected to the inner side of the heating box (309).

7. An automatic fluid replenishment device according to claim 6, characterized in that: The fluid replenishment component (3) also includes a first connection hole (31101) and a second connection hole (31102), which are respectively located at the bottom of the cylinder (311) and the end of the output shaft.

8. An automatic fluid replenishment device according to claim 7, characterized in that: The replenishment component (3) also includes a first support rod (312), a second support rod (313), and a replenishment port (314). The first support rod (312) is fixedly connected to the outer wall of the melting furnace (1), and the second support rod (313) is fixedly connected to the replenishment tank (301). The cylinder (311) is rotatably connected to the first support rod (312) and the second support rod (313) through the first connection hole (31101) and the second connection hole (31102), respectively. The replenishment port (314) is opened on the melting furnace (1), and the liquid outlet (308) is movably installed in the replenishment port (314).

9. An automatic fluid replenishment device according to claim 1, characterized in that: The sealing assembly (4) includes a support frame (401), an arc-shaped sealing plate (402), a second connecting rod (403), a second connecting plate (404), and a spring (405). The support frame (401) is fixedly connected to the melting furnace (1), the second connecting rod (403) is fixedly connected to the arc-shaped sealing plate (402), the second connecting plate (404) is fixedly connected to the second connecting rod (403), the second connecting rod (403) is movably mounted on the support frame (401), and the spring (405) is movably mounted on the second connecting rod (403), and the spring (405) is located between the support frame (401) and the second connecting plate (404).

10. An automatic fluid replenishment device according to claim 9, characterized in that: The sealing assembly (4) also includes an adjusting plate (406), a positioning tube (407), an adjusting bolt (408), a bottom block (409), and a fixing bolt (410). The adjusting plate (406) is fixedly connected to the upper end of the second connecting rod (403), and the adjusting plate (406) is located above the support frame (401). The positioning tube (407) is fixedly connected to the adjusting plate (406). The adjusting bolt (408) and the fixing bolt (410) are threadedly connected to the positioning tube (407). The bottom block (409) is fixedly connected to the lower end of the adjusting bolt (408). The bottom block (409) at the lower end of the adjusting bolt (408) is in contact with the plate of the support frame (401). The fixing bolt (410) fixes the adjusting bolt (408).

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