Method for refining and modifying cast aluminum alloy

Abstract

The invention discloses a cast aluminum alloy refining device, and relates to the technical field of material science and engineering.The cast aluminum alloy refining device comprises a bottom plate, a supporting column is fixedly connected to the outer wall of the top of the bottom plate, a first motor is fixedly connected to the outer wall of the top of the supporting column, and the bottom output end of the first motor is fixedly connected with a threaded rod through a coupler; through a stirring shaft, a connecting plate is synchronously driven to rotate when the stirring shaft begins to rotate, a fixed shaft is driven to move circumferentially when the connecting plate begins to rotate, at the moment, a gear is synchronously driven by the fixed shaft to move in the same track, and the gear is engaged with a fluted disc while moving; and at the moment, the gear can rotate, the fixed shaft can be driven to synchronously rotate while the gear rotates, and the stirring paddle located on the fixed shaft can rotate, so that the effect of stirring the aluminum alloy solution is achieved, the melt uniformity is promoted, the physical and chemical reaction is strengthened, and the structure performance is optimized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of material science and engineering, and particularly relates to a refining modification method for cast aluminum alloy. BACKGROUND

[0002] The cast aluminum alloy is widely applied in the fields of automobile parts, aerospace structural parts, 3C products and industrial equipment due to the characteristics of light weight, corrosion resistance and easy forming. The refining modification method for the cast aluminum alloy is a key technology for improving the metallurgical quality, organizational structure and performance of the aluminum alloy melt through a series of process means, and is mainly used for eliminating defects and optimizing the organization so as to improve the comprehensive performance of the castings. When the cast aluminum alloy is refined and modified, various reagents need to be added to assist the better refining and modification. The existing equipment usually adds an appropriate amount of reagent in the internal when the aluminum alloy solution enters the refining tank, and then adds the smelted aluminum alloy to mix them together. However, part of the reagent is deposited at the bottom of the tank due to the large density, thereby causing the uneven distribution of the reagent in the aluminum alloy solution, and thus affecting the effect of the refining and modification. Therefore, the application provides a refining modification method for cast aluminum alloy. SUMMARY

[0003] The application aims to provide a refining device for cast aluminum alloy, which solves the problem of uneven distribution of reagents in the aluminum alloy solution and thus affects the effect of the refining and modification by adding various reagents to assist the better refining and modification when the cast aluminum alloy is refined and modified.

[0004] To solve the above technical problems, the application is implemented by the following technical scheme: The application is a refining device for cast aluminum alloy, which comprises a bottom plate, a support column fixedly connected to the top outer wall of the bottom plate, a first motor fixedly connected to the top outer wall of the support column, a threaded rod fixedly connected to the bottom output end of the first motor through a shaft coupling, a guide rod fixedly connected to the inner wall of the support column, a fixed plate threadedly connected to the outer wall of the threaded rod, the inner wall of the fixed plate and the outer wall of the guide rod being slidably connected, and a stirring mechanism arranged on the top outer wall of the bottom plate. The stirring mechanism includes a refining tank, the bottom outer wall of the refining tank is fixedly connected to the top outer wall of the bottom plate, the top outer wall of the refining tank is provided with a tank cover, the outer wall of the tank cover is fixedly connected to the outer wall of the fixed plate, the top outer wall of the tank cover is fixedly connected to a second motor, the bottom output end of the second motor is fixedly connected to a stirring shaft through a coupling, and the outer wall of the stirring shaft is fixedly connected to a plurality of stirring blades.

[0005] Furthermore, an ultrasonic emitter is fixedly connected to the outer wall of the end of the stirring shaft away from the second motor, a gear disk is rotatably connected to the outer wall of the stirring shaft, a connecting plate is fixedly connected to the outer wall of the stirring shaft, a plurality of fixed shafts are rotatably connected to the inner wall of the connecting plate, and gears are fixedly connected to the top outer walls of the plurality of fixed shafts.

[0006] Furthermore, the outer walls of several of the gears are meshed and connected with the outer wall of the gear disk, the outer walls of several of the fixed shafts are fixedly connected with stirring paddles, and the outer wall of the stirring shaft is provided with a medicine feeding mechanism.

[0007] Furthermore, the medicine-dispensing mechanism includes a pulley, the inner wall of the pulley is fixedly connected to the outer wall of the stirring shaft, the outer wall of the pulley is transmission-connected to a belt, the outer wall of the belt is transmission-connected to pulley 2, the inner wall of pulley 2 is fixedly connected to a rotating shaft, the outer wall of the rotating shaft is rotatably connected to an L-plate, the outer wall of the L-plate at one end away from the rotating shaft is fixedly connected to fixed plate 2, the bottom outer wall of fixed plate 2 is fixedly connected to the top outer wall of the tank cover, the top outer wall of the rotating shaft is fixedly connected to a bevel gear, the outer wall of fixed plate 2 is fixedly connected to L-plate 2, the inner wall of L-plate 2 is rotatably connected to a worm, and the outer wall of the worm at one end close to the bevel gear is fixedly connected to bevel gear 2.

[0008] Furthermore, the outer wall of the bevel gear 2 is meshedly connected with the outer wall of the bevel gear, the inner wall of the tank cover is fixedly connected with the medicine storage tank, the inner wall of the medicine storage tank is rotatably connected with an auger blade, the outer wall of the auger blade is rotatably connected with the inner wall of the fixed plate 2, the top outer wall of the auger blade is fixedly connected with a worm gear, the outer wall of the worm gear is meshedly connected with the outer wall of the worm, and the top outer wall of the bottom plate is provided with a purification mechanism.

[0009] Furthermore, the purification mechanism includes a purification box, the bottom outer wall of the purification box is fixedly connected to the top outer wall of the bottom plate, the outer wall of the purification box is hinged with a sealing door, the inner wall of the sealing door is provided with an exhaust port, the top outer wall of the purification box is fixedly connected to a negative pressure fan, the bottom output end of the negative pressure fan is fixedly connected to a connecting pipe, the outer wall of one end of the connecting pipe away from the negative pressure fan is fixedly connected to the inner wall of the refining tank, and the inner wall of the negative pressure fan is fixedly connected to a transmission pipe.

[0010] Further, the outer wall of the end of the transmission pipe away from the negative pressure fan is fixedly connected with the inner wall of the purification box, the inner wall of the purification box is clamped with a plurality of activated carbon filter plates, the inner wall of the plurality of activated carbon filter plates is all inserted with a hollow shaft, and the outer wall of the hollow shaft extends to the outer wall through the inner wall of the purification box.

[0011] Further, the inner wall of the plurality of hollow shafts is threadedly connected with a lead screw, the outer wall of the bottom of the plurality of lead screws is all rotatably connected with an extrusion block, the inner wall of the plurality of hollow shafts is all fixedly connected with a positioning plate, the inner wall of the plurality of positioning plates is all slidably connected with a sliding shaft, and the outer wall of the plurality of sliding shafts is all sleeved with a spring.

[0012] Further, the inner wall of the plurality of hollow shafts is all provided with a sliding groove, the outer wall of one end of the plurality of sliding grooves close to the positioning plate is slidably connected with the inner wall of the sliding groove, and the outer wall of one end of the plurality of sliding shafts away from the positioning plate is in contact with the outer wall of the extrusion block.

[0013] Further, the one cast aluminum alloy refining modification method and the cast aluminum alloy refining device, and the modification method comprises the following steps: S1: first, start the second motor, so that it drives the stirring shaft and the fixed shaft to rotate, and drives the stirring blade and the stirring paddle to rotate, at this time, the stirring paddle and the stirring blade are matched with each other to stir the melted aluminum alloy, and the ultrasonic wave emitter is used to degas and deslag the aluminum alloy solvent; S2: then, the stirring shaft drives the belt pulley to drive the belt to drive the second belt pulley to rotate, then the second belt pulley drives the bevel gear to drive the second bevel gear to rotate, at this time, the second bevel gear drives the worm to drive the worm gear to rotate, and drives the auger blade to rotate, so that the auger blade downwardly conveys the refining agent, so that the refining agent is mixed with the aluminum alloy solvent; S3: the gas generated during the aluminum alloy refining modification is introduced into the purification box through the negative pressure fan and filtered through the activated carbon filter plate, then the purified gas is discharged through the exhaust port, the extrusion block is separated from the sliding shaft by rotating the lead screw, then the sliding shaft is driven to shrink into the hollow shaft by the elastic force of the spring, so that the restriction of the activated carbon filter plate is released, and the activated carbon filter plate can be disassembled.

[0014] The present application has the following beneficial effects: 1. The present invention is provided with a stirring shaft. When the stirring shaft starts to rotate, it will synchronously drive the connecting plate to rotate. When the connecting plate starts to rotate, it will drive the fixed shaft to move in a circle. At this time, the fixed shaft will synchronously drive the gear to move in the same trajectory. When the gear moves, it will engage with the toothed disk. At this time, the gear will rotate, and while rotating, it will drive the fixed shaft to rotate synchronously. At this time, the stirring paddle on the fixed shaft will rotate, achieving the effect of stirring the aluminum alloy solution, promoting the uniformity of the melt, strengthening the physical and chemical reactions, and optimizing the organizational properties.

[0015] 2. The present invention is provided with a bevel gear. When the bevel gear starts to rotate, it will mesh with the bevel gear 2. At this time, the bevel gear 2 will be driven to rotate. When the bevel gear 2 starts to rotate, it will drive the worm to rotate. When the worm starts to rotate, it will drive the worm wheel to rotate. When the worm wheel starts to rotate, it will drive the auger blade to rotate. When the auger blade starts to rotate, it will transport the refining agent in the medicine storage tank to the refining tank, achieving the effect of stirring and adding medicine to the aluminum alloy solution, strengthening the interaction between the medicine and the aluminum liquid, and significantly improving the refining and metamorphic effects.

[0016] 3. The present invention is provided with a screw rod. When the screw rod is completely released from one end of the sliding shaft, the sliding shaft that was originally squeezed will no longer be limited. At this time, the spring on the sliding shaft will stretch and rebound. The rebound force will drive the sliding shaft to quickly reset. When the sliding shaft is reset, the end that was originally outside the hollow shaft will completely enter the hollow shaft through the slide groove. Then, the hollow shaft can be pulled out from the purification box and the activated carbon filter plate to release the limit on the activated carbon filter plate. At this time, it can be repaired or replaced, thereby achieving the effect of purifying the gas generated during refining and deterioration, eliminating the hidden dangers of flammable and explosive gases, and protecting the health of operators.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the stirring blade structure of the present invention; Figure 4 For the application Figure 3 Enlarged view at A in the application; Figure 5 For the application Figure 6 For the application Figure 5 Enlarged view at B in the application; Figure 7 For the application Figure 8 For the application Figure 9 For the application Figure 8 Enlarged view at C in the application; Figure 10 For the application

[0020] In the drawings, the components represented by each reference numeral are listed as follows: 1, bottom plate; 101, support column; 102, first motor; 103, threaded rod; 104, guide rod; 105, fixed plate; 2, stirring mechanism; 201, refining tank; 202, tank cover; 203, second motor; 204, stirring shaft; 205, stirring blade; 206, ultrasonic transmitter; 207, connecting plate; 208, fixed shaft; 209, gear; 210, stirring paddle; 211, toothed disc; 3, medicine feeding mechanism; 301, belt pulley; 302, belt; 303, belt pulley two; 304, rotating shaft; 305, L plate; 306, fixed plate two; 307, bevel gear; 308, bevel gear two; 309, worm; 310, L plate two; 311, medicine storage tank; 312, auger blade; 313, worm gear; 4, purification mechanism; 401, purification tank; 402, sealing door; 403, exhaust port; 404, negative pressure fan; 405, connecting pipe; 406, transmission pipe; 407, activated carbon filter plate; 408, hollow shaft; 409, lead screw; 410, extrusion block; 411, positioning plate; 412, sliding shaft; 413, spring; 414, sliding groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0022] Please refer to Figures 1-10As shown, the present application is a kind of cast aluminum alloy refining device, including bottom plate 1, the top outer wall of bottom plate 1 is fixedly connected with support column 101, bottom plate 1 is used to support mechanically support fixed support column 101, make it more stable when using, the top outer wall of support column 101 is fixedly connected with first motor 102, the bottom output end of first motor 102 is fixedly connected with threaded rod 103 through coupling, first motor 102 starts to operate will drive threaded rod 103 to rotate, when threaded rod 103 starts to rotate, the inner wall of support column 101 is fixedly connected with guide rod 104, the outer wall of threaded rod 103 is threadedly connected with fixed plate 105, the inner wall of fixed plate 105 is slidably connected with the outer wall of guide rod 104, when threaded rod 103 starts to rotate will drive fixed plate 105 to move, when moving, guide rod 104 will limit fixed plate 105 and prevent it from rotating, the top outer wall of bottom plate 1 is provided with stirring mechanism 2, stirring mechanism 2 includes refining tank 201, the bottom outer wall of refining tank 201 is fixedly connected with the top outer wall of bottom plate 1, the top outer wall of refining tank 201 is provided with tank cover 202, tank cover 202 completely seals refining tank 201, to prevent the smoke generated inside from drifting outward when using, the outer wall of tank cover 202 is fixedly connected with the outer wall of fixed plate 105, the top outer wall of tank cover 202 is fixedly connected with second motor 203, the bottom output end of second motor 203 is fixedly connected with stirring shaft 204 through coupling, second motor 203 starts to rotate will drive stirring shaft 204 to rotate, the outer wall of stirring shaft 204 is fixedly connected with a plurality of stirring blades 205, the outer wall of the end of stirring shaft 204 away from second motor 203 is fixedly connected with ultrasonic transmitter 206, when stirring shaft 204 starts to rotate will drive stirring blade 205 to rotate, also simultaneously drives ultrasonic transmitter 206 to rotate while rotating, the model of ultrasonic transmitter 206 is US-20L, the mechanical impact force generated by the ultrasonic vibration emitted by it can crush the coarse needle-shaped silicon crystals in aluminum alloy, so that it is refined into granular, improves mechanical properties, the outer wall of stirring shaft 204 is rotatably connected with gear disc 211, the outer wall of stirring shaft 204 is fixedly connected with connecting plate 207, the inner wall of connecting plate 207 is rotatably connected with a plurality of fixed shafts 208, the top outer wall of a plurality of fixed shafts 208 is fixedly connected with gear 209, when stirring shaft 204 starts to rotate will drive connecting plate 207 to rotate, when connecting plate 207 starts to rotate will drive fixed shaft 208 to rotate, at this time, the gear 209 on the fixed shaft 208 will rotate by meshing through the gear disc 211, the outer wall of a plurality of gears 209 is meshingly connected with the outer wall of gear disc 211, the outer wall of a plurality of fixed shafts 208 is fixedly connected with stirring paddle 210, when fixed shaft 208 starts to rotate will drive stirring paddle 210 to rotate, at this time, stirring paddle 210 will stir the material in refining tank 201, the outer wall of stirring shaft 204 is provided with medicine adding mechanism 3. The lower medicine mechanism 3 comprises a belt pulley 301, the inner wall of the belt pulley 301 is fixedly connected with the outer wall of the stirring shaft 204, the outer wall of the belt pulley 301 is drivingly connected with a belt 302, the outer wall of the belt 302 is drivingly connected with a belt pulley two 303, when the belt pulley 301 starts to rotate, the belt 302 is driven to rotate, when the belt 302 starts to rotate, the belt pulley two 303 is driven to rotate, at this time, the effect of transmission between parts is achieved, the inner wall of the belt pulley two 303 is fixedly connected with a rotating shaft 304, the outer wall of the rotating shaft 304 is drivingly connected with an L plate 305, when the belt pulley two 303 starts to rotate, the rotating shaft 304 is driven to rotate, at this time, the effect of kinetic energy transmission is achieved, the outer wall of one end of the L plate 305 away from the rotating shaft 304 is fixedly connected with a fixed plate two 306, the bottom outer wall of the fixed plate two 306 is fixedly connected with the top outer wall of the tank cover 202, the L plate 305 is used for supporting and limiting the rotating shaft 304, preventing the rotating shaft 304 from falling off during use, so as to affect the operation of the device, the top outer wall of the rotating shaft 304 is fixedly connected with a bevel gear 307, the outer wall of the fixed plate two 306 is fixedly connected with an L plate two 310, the inner wall of the L plate two 310 is drivingly connected with an auger 309, the outer wall of one end of the auger 309 close to the bevel gear 307 is fixedly connected with a bevel gear two 308, when the rotating shaft 304 drives the bevel gear 307 to rotate, the bevel gear 307 meshes with the bevel gear two 308, at this time, the bevel gear two 308 is driven to rotate, when the bevel gear two 308 starts to rotate, the auger 309 is driven to rotate, the outer wall of the bevel gear two 308 is meshingly connected with the outer wall of the bevel gear 307, the inner wall of the tank cover 202 is fixedly connected with a medicine storage tank 311, the inner wall of the medicine storage tank 311 is drivingly connected with an auger flighting 312, the outer wall of the auger flighting 312 is drivingly connected with the inner wall of the fixed plate two 306, the top outer wall of the auger flighting 312 is fixedly connected with a worm wheel 313, when the auger 309 starts to rotate, the worm wheel 313 is driven to rotate, when the worm wheel 313 starts to rotate, the auger flighting 312 is driven to rotate, at this time, the auger flighting 312 drives the medicine in the medicine storage tank 311 downward, the outer wall of the worm wheel 313 is meshingly connected with the outer wall of the auger 309, and the top outer wall of the bottom plate 1 is provided with a purification mechanism 4.

[0023] The purification mechanism 4 includes a purification box 401, the bottom outer wall of the purification box 401 is fixedly connected to the top outer wall of the bottom plate 1, the outer wall of the purification box 401 is hinged with a sealing door 402, the sealing door 402 is used to completely seal the purification box 401 to prevent unpurified smoke from drifting outward, the inner wall of the sealing door 402 is provided with an exhaust port 403, the top outer wall of the purification box 401 is fixedly connected to a negative pressure fan 404, the bottom output end of the negative pressure fan 404 is fixedly connected to a connecting pipe 405, the outer wall of the connecting pipe 405 away from the negative pressure fan 404 is fixedly connected to the inner wall of the refining tank 201, when the negative pressure When the fan 404 starts to operate, it will generate a certain amount of suction. At this time, this suction will enter the refining tank 201 through the connecting pipe 405 to absorb the harmful gases generated. The inner wall of the negative pressure fan 404 is fixedly connected with a transmission pipe 406. The outer wall of the transmission pipe 406 away from the negative pressure fan 404 is fixedly connected to the inner wall of the purification box 401. The inner wall of the purification box 401 is clamped with several activated carbon filter plates 407. When the harmful gases are transmitted into the negative pressure fan 404 through the connecting pipe 405, they will enter the purification box 401 through the transmission pipe 406. Then the gases will pass through the activated carbon filter plates 407. 7 purification, thereby making it purer, the inner walls of several activated carbon filter plates 407 are plugged with hollow shafts 408, the outer walls of the hollow shafts 408 penetrate the inner wall of the purification box 401 and extend to the outer wall, the inner walls of several hollow shafts 408 are threadedly connected with screw rods 409, and the outer walls of the bottoms of several screw rods 409 are rotatably connected with extrusion blocks 410. When the screw rods 409 start to rotate, they will rotate on the extrusion blocks 410. At this time, the screw rods 409 will move downward, and while moving, they will drive the extrusion blocks 410 to move downward together. The inner walls of several hollow shafts 408 are fixedly connected with positioning plates 411, the inner walls of several positioning plates 411 are slidably connected with sliding shafts 412, the outer walls of several sliding shafts 412 are sleeved with springs 413, and the inner walls of several hollow shafts 408 are provided with sliding grooves 414. When the sliding shafts 412 are squeezed by the squeezing block 410, they will move to both sides, squeezing the springs 413 while moving. When the springs 413 are squeezed, they will contract. The outer walls of one end of several sliding grooves 414 close to the positioning plate 411 are slidably connected to the inner walls of the sliding grooves 414, and the outer walls of one end of several sliding shafts 412 away from the positioning plate 411 are in contact with the outer wall of the squeezing block 410.

[0024] A method for refining and modifying a cast aluminum alloy, comprising the following steps: S1: First, the second motor 203 is started, which drives the stirring shaft 204 and the fixed shaft 208 to rotate, thereby driving the stirring blade 205 and the stirring paddle 210 to rotate. At this time, the stirring paddle 210 and the stirring blade 205 cooperate with each other to stir the molten aluminum alloy, and the aluminum alloy solvent is degassed and deslaged through the ultrasonic transmitter 206; S2: the stirring shaft 204 drives the belt 302 through the belt pulley 301, which in turn drives the belt pulley two 303, which drives the bevel gear two 308 through the bevel gear 307, which in turn drives the worm gear 309, which drives the worm wheel 313, which in turn drives the auger blade 312, so that the auger blade 312 transports the refining agent downward, so that the refining agent mixes with the aluminum alloy solvent; S3: the gas generated during the refining and modification of the aluminum alloy enters the purification tank 401 through the negative pressure fan 404 and is filtered through the activated carbon filter plate 407, then the purified gas is discharged through the exhaust port 403, and the extrusion block 410 is separated from the sliding shaft 412 by rotating the lead screw 409, then the sliding shaft 412 is retracted into the hollow shaft 408 by the elastic force of the spring 413, which removes the restriction on the activated carbon filter plate 407, so that the activated carbon filter plate 407 can be removed.

[0025] One specific application of this embodiment is: When the staff needs to use the equipment, they first start the first motor 102 through the controller. When the first motor 102 starts to run, it will drive the threaded rod 103 to rotate. When the threaded rod 103 starts to rotate, it will drive the fixed plate 105 to move upward through the guide rod 104. At this time, the tank cover 202 will move upward together. When it moves to a suitable distance, the molten aluminum alloy is injected into the refining tank 201. Then the tank cover 202 is controlled to reset, and then the molten aluminum alloy is refined. Before refining, it is necessary to add an appropriate amount of refining agent to the medicine storage tank 311. Then, the second motor 203 is started by the controller. When the second motor 203 starts to run, it will drive the stirring shaft 204 to rotate. When the stirring shaft 204 starts to rotate When the stirring shaft 204 starts to rotate, it will drive the stirring blade 205 to rotate. When the stirring shaft 204 starts to rotate, it will synchronously drive the connecting plate 207 to rotate. When the connecting plate 207 starts to rotate, it will drive the fixed shaft 208 to move in a circle. At this time, the fixed shaft 208 will synchronously drive the gear 209 to move in the same trajectory. When the gear 209 moves, it will engage with the toothed disc 211. At this time, the gear 209 rotates, and while rotating, it will drive the fixed shaft 208 to rotate synchronously. At this time, the stirring paddle 210 on the fixed shaft 208 will rotate. At this time, the stirring paddle 210 and the stirring blade 205 cooperate with each other to mix and stir the molten aluminum alloy and the refining agent. When the stirring shaft 204 rotates, it will synchronously drive the belt When the bevel gear 307 starts to rotate, it will mesh with the bevel gear 2 308. At this time, the bevel gear 2 308 will be driven to rotate. When the bevel gear 2 308 starts to rotate, it will drive the worm 309 to rotate. When the worm 309 starts to rotate, it will drive the worm gear 313 to rotate. When the worm gear 313 starts to rotate, it will drive the auger blade 312 to rotate. When the auger blade 312 starts to rotate, it will push the refining agent in the medicine storage tank 311 to the refined agent. The aluminum alloy solution is transported in the refining tank 201. When the refining agent is continuously introduced into the refining tank 201, the stirred aluminum alloy solution will quickly mix with it. When the stirring shaft 204 drives the ultrasonic transmitter 206 to rotate, the ultrasonic transmitter 206 will spread the generated ultrasonic wave to the surroundings. The mechanical impact force generated by the ultrasonic vibration can break the coarse needle-shaped silicon crystals in the aluminum alloy, making it refined into granules, thereby improving the mechanical properties. At this time, the ultrasonic wave is combined with the stirring to produce the dual effects of vibration and eddy current, which further reduces the grain size. At the same time, the ultrasonic vibration promotes the aggregation of tiny bubbles in the aluminum liquid and floats up to be discharged, and at the same time causes the collision and agglomeration of inclusions, which is convenient for filtration and removal, thereby improving the purity of the melt. During the stirring process, the negative pressure fan 404 is started.When the negative pressure fan 404 starts to operate, it will transmit the suction force to the refining tank 201 through the connecting pipe 405. At this time, the suction force will absorb the harmful gases generated during refining. The absorbed harmful gases will enter the negative pressure fan 404 through the connecting pipe 405, and then enter the transmission pipe 406 from the negative pressure fan 404, and finally enter the purification box 401 through the negative pressure fan 404. The gas will then be filtered and adsorbed by the two activated carbon filter plates 407, thereby making the gas purer. When the activated carbon filter plates 407 are used for a long time and need to be maintained or replaced, first rotate the screw rod 409. When the screw rod 409 rotates, it will move upward. When the screw rod 409 moves upward, it will drive the extrusion block 410 to move upward together. When the screw rod 409 is completely released from one end of the sliding shaft 412, the sliding shaft 412 that was originally squeezed will no longer be limited. At this time, the sliding shaft The spring 413 on 412 will stretch and rebound, and this rebound force will drive the sliding shaft 412 to quickly reset. When the sliding shaft 412 is reset, the end that was originally outside the hollow shaft 408 will completely enter the hollow shaft 408 through the slide groove 414, and then the hollow shaft 408 can be pulled out from the purification box 401 and the activated carbon filter plate 407 to release the limit of the activated carbon filter plate 407. At this time, it can be repaired or replaced. When the aluminum alloy in the refining tank 201 is refined, let it stand for a while, and then control the tank cover 202 to move upward. Then control the tank cover 202 to move upward, and then the staff uses tools to remove the impurities floating on the upper layer of the aluminum alloy solution. At this time, the refining effect is achieved, and then the tank cover 202 is reset, and then the deteriorating agent is added to the medicine storage tank 311. Then repeat the above operation to complete the deterioration operation.

[0026] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0027] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cast aluminum alloy refining device, comprising a bottom plate (1), characterized in that: The top outer wall of the bottom plate (1) is fixedly connected to a support column (101), the top outer wall of the support column (101) is fixedly connected to a first motor (102), the bottom output end of the first motor (102) is fixedly connected to a threaded rod (103) via a coupling, the inner wall of the support column (101) is fixedly connected to a guide rod (104), the outer wall of the threaded rod (103) is threadedly connected to a fixed plate (105), the inner wall of the fixed plate (105) is slidably connected to the outer wall of the guide rod (104), and the top outer wall of the bottom plate (1) is provided with a stirring mechanism (2); The stirring mechanism (2) comprises a refining tank (201), the bottom outer wall of the refining tank (201) is fixedly connected to the top outer wall of the bottom plate (1), the top outer wall of the refining tank (201) is provided with a tank cover (202), the outer wall of the tank cover (202) is fixedly connected to the outer wall of the fixed plate (105), the top outer wall of the tank cover (202) is fixedly connected to a second motor (203), the bottom output end of the second motor (203) is fixedly connected to a stirring shaft (204) via a coupling, and the outer wall of the stirring shaft (204) is fixedly connected to a plurality of stirring blades (205).

2. A cast aluminum alloy refining device according to claim 1, characterized in that: An ultrasonic transmitter (206) is fixedly connected to the outer wall of one end of the stirring shaft (204) away from the second motor (203), a gear disc (211) is rotatably connected to the outer wall of the stirring shaft (204), a connecting plate (207) is fixedly connected to the outer wall of the stirring shaft (204), a plurality of fixed shafts (208) are rotatably connected to the inner wall of the connecting plate (207), and a gear (209) is fixedly connected to the top outer walls of the plurality of fixed shafts (208).

3. The cast aluminum alloy refining device according to claim 2, characterized in that: The outer walls of several gears (209) are meshed with the outer wall of the toothed disc (211), the outer walls of several fixed shafts (208) are fixedly connected with stirring paddles (210), and the outer wall of the stirring shaft (204) is provided with a medicine dispensing mechanism (3).

4. A cast aluminum alloy refining device according to claim 3, characterized in that: The medicine dispensing mechanism (3) comprises a pulley (301), the inner wall of the pulley (301) is fixedly connected to the outer wall of the stirring shaft (204), the outer wall of the pulley (301) is transmission-connected to a belt (302), the outer wall of the belt (302) is transmission-connected to a second pulley (303), the inner wall of the second pulley (303) is fixedly connected to a rotating shaft (304), the outer wall of the rotating shaft (304) is rotationally connected to an L-plate (305), and the L-plate (305) is away from the rotating shaft (304). The outer wall at one end is fixedly connected to a fixing plate 2 (306), the bottom outer wall of the fixing plate 2 (306) is fixedly connected to the top outer wall of the tank cover (202), the top outer wall of the rotating shaft (304) is fixedly connected to a bevel gear (307), the outer wall of the fixing plate 2 (306) is fixedly connected to an L-plate 2 (310), the inner wall of the L-plate 2 (310) is rotatably connected to a worm (309), and the outer wall of one end of the worm (309) close to the bevel gear (307) is fixedly connected to a bevel gear 2 (308).

5. The cast aluminum alloy refining device according to claim 4, characterized in that: The outer wall of the second bevel gear (308) is meshed with the outer wall of the bevel gear (307), the inner wall of the tank cover (202) is fixedly connected to the medicine storage tank (311), the inner wall of the medicine storage tank (311) is rotatably connected to the auger blade (312), the outer wall of the auger blade (312) is rotatably connected to the inner wall of the second fixed plate (306), the top outer wall of the auger blade (312) is fixedly connected to the worm wheel (313), the outer wall of the worm wheel (313) is meshed with the outer wall of the worm (309), and the top outer wall of the bottom plate (1) is provided with a purification mechanism (4).

6. The cast aluminum alloy refining device according to claim 5, characterized in that: The purification mechanism (4) comprises a purification box (401), the bottom outer wall of the purification box (401) is fixedly connected to the top outer wall of the bottom plate (1), the outer wall of the purification box (401) is hinged with a sealing door (402), the inner wall of the sealing door (402) is provided with an exhaust port (403), the top outer wall of the purification box (401) is fixedly connected to a negative pressure fan (404), the bottom output end of the negative pressure fan (404) is fixedly connected to a connecting pipe (405), the outer wall of one end of the connecting pipe (405) away from the negative pressure fan (404) is fixedly connected to the inner wall of the refining tank (201), and the inner wall of the negative pressure fan (404) is fixedly connected to a transmission pipe (406).

7. The cast aluminum alloy refining device according to claim 6, characterized in that: The outer wall of one end of the transmission tube (406) away from the negative pressure blower (404) is fixedly connected to the inner wall of the purification box (401), and a plurality of activated carbon filter plates (407) are clamped on the inner wall of the purification box (401), and a hollow shaft (408) is inserted into the inner walls of the plurality of activated carbon filter plates (407), and the outer wall of the hollow shaft (408) passes through the inner wall of the purification box (401) and extends to the outer wall.

8. The cast aluminum alloy refining device according to claim 7, characterized in that: The inner walls of several hollow shafts (408) are threadedly connected to screw rods (409), the outer walls of the bottoms of several screw rods (409) are rotatably connected to extrusion blocks (410), the inner walls of several hollow shafts (408) are fixedly connected to positioning plates (411), the inner walls of several positioning plates (411) are slidably connected to sliding shafts (412), and the outer walls of several sliding shafts (412) are sleeved with springs (413).

9. The cast aluminum alloy refining device according to claim 8, characterized in that: The inner walls of several hollow shafts (408) are provided with sliding grooves (414), the outer walls of several sliding grooves (414) at one end close to the positioning plate (411) are slidably connected to the inner wall of the sliding groove (414), and the outer walls of several sliding shafts (412) at one end away from the positioning plate (411) are in contact with the outer wall of the extrusion block (410).

10. A method for refining and modifying a cast aluminum alloy, characterized in that: Using the cast aluminum alloy refining device according to any one of claims 1 to 9, the modification method comprises the following steps: S1: First, the second motor (203) is started to rotate the stirring shaft (204) and the fixed shaft (208), thereby driving the stirring blade (205) and the stirring paddle (210) to rotate. At this time, the stirring paddle (210) and the stirring blade (205) cooperate with each other to stir the molten aluminum alloy, and the aluminum alloy solvent is degassed and deslaged through the ultrasonic transmitter (206); S2: The stirring shaft (204) then drives the pulley (301) to drive the belt (302) to drive the pulley 2 (303) to rotate, and then the pulley 2 (303) drives the bevel gear (307) to drive the bevel gear 2 (308) to rotate. At this time, the bevel gear 2 (308) drives the worm (309) to drive the worm wheel (313) to rotate, and the worm wheel (312) drives the auger blade (312) to rotate, so that the auger blade (312) transports the refining agent downward, thereby mixing the refining agent with the aluminum alloy solvent; S3: The gas generated during the refining and deterioration of the aluminum alloy enters the purification box (401) through the negative pressure blower (404) and is filtered by the activated carbon filter plate (407). The purified gas is then discharged through the exhaust port (403). The extrusion block (410) is disengaged from the slide shaft (412) by rotating the screw rod (409). Then, the rebound force of the spring (413) drives one end of the slide shaft (412) to retract into the hollow shaft (408), releasing the restriction on the activated carbon filter plate (407) so that the activated carbon filter plate (407) can be removed.

Images