Aluminum alloy die casting device

Abstract

The application belongs to the field of aluminum alloy die casting, and particularly relates to an aluminum alloy die casting device, which comprises a supporting seat, a fixed cover fixedly connected to the top of the supporting seat, a lower mold arranged in the fixed cover, a scraper arranged on the top of the supporting seat and located at one side of the fixed cover, and a spraying frame slidably connected to the inner side of the fixed cover through a limiting rod; the device can seal and protect the lower mold and the upper mold by the cooperation of the protective cover and the fixed cover when the molds are closed, can avoid the diffusion of a large amount of water vapor generated in the subsequent cooling process of the lower mold and the upper mold to the whole workshop, and thus can avoid the influence on the working environment of the workshop and the line of sight of the workers, and can spray cooling water on the lower mold and the upper mold through the cooperation of the spraying frame and the spray head after pouring high-temperature aluminum liquid, thereby avoiding the rapid heating of the lower mold and the upper mold after the high-temperature aluminum liquid contacts the mold cavity, the mold thermal fatigue, the poor forming of the castings, and thus the problem of the reduction of the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy die casting, specifically to an aluminum alloy die casting apparatus. Background Technology

[0002] Die casting of automotive aluminum alloy parts is a common aluminum alloy manufacturing process, widely used in the production of automotive parts. This process has advantages such as high efficiency, high precision and good surface quality, and is suitable for mass production of complex-shaped parts. During processing, molten aluminum alloy is injected into the die casting mold cavity under high pressure, thereby manufacturing aluminum alloy parts with various complex shapes.

[0003] A search revealed a Chinese patent (authorization announcement number CN118682096 B) disclosing a vacuum die-casting equipment for automotive rearview mirror brackets. This patented technology includes a vacuum die-casting machine, a mold assembly, a melting device, and a die-casting control system. The mold assembly includes an upper mold and a lower mold, forming a cavity between them for molding the rearview mirror bracket. The vacuum die-casting machine includes a processing frame, an expandable hydraulic device, an injection device, a vacuum system, and a cooling system. The processing frame has multiple limiting grooves arranged on it, the lower mold is installed within these grooves, the expandable hydraulic device is located at the top of the processing frame, the upper mold is mounted on the expandable hydraulic device, and the lower mold has an air extraction hole at its inner bottom. A transition hole is located within the limiting groove, connecting to the air extraction hole and a vacuum pipeline. This vacuum pipeline is connected to a pressure-evacuating component, forming a vacuum system. This technology solves the problems of insufficient precision and poor surface quality often encountered in traditional die-casting processes when manufacturing non-metallic rearview mirror brackets.

[0004] When cooling a mold, indirect water cooling is achieved by using equipment such as heat exchangers, pipes, and pumps to exchange heat without direct contact between the cooling water and the mold. Immersion cooling and spray cooling are direct cooling methods. In this technology, the die-casting equipment directly cools the mold using coolant or water placed in a refrigerant tank. However, when the coolant or water comes into contact with the high-temperature mold, a large amount of water vapor is generated. If the water vapor is not treated, it will quickly spread throughout the workshop, raising the temperature inside the workshop and affecting the working environment and the visibility of the workers.

[0005] Therefore, an aluminum alloy die-casting device is proposed to address the above problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, existing die-casting equipment directly cools the mold using coolant or water placed in a refrigerant tank. However, when the coolant or water comes into contact with the high-temperature mold, a large amount of water vapor is generated. If the water vapor is not treated, it will quickly spread throughout the workshop, raising the temperature inside the workshop and affecting the working environment and the visibility of the workers. This invention proposes an aluminum alloy die-casting device.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: An aluminum alloy die-casting device of the present invention includes a support base, a fixed cover fixedly connected to the top of the support base, a lower mold disposed inside the fixed cover, a scraper disposed on the top of the support base and on one side of the fixed cover, a spray frame slidably connected to the inner side of the fixed cover via a limiting rod, a recycling component disposed above the fixed cover, a transmission component disposed on the top of the support base, a reciprocating component disposed above the scraper, the recycling component including a lifting base, a lifting base slidably connected to the top of the support base and above the fixed cover via a limiting rod, a protective cover fixedly connected to the bottom of the lifting base, an upper mold fixedly connected to the lower part of the inner side of the protective cover, multiple sets of air inlets fixedly connected at equal intervals to the bottom of the lifting base, a collection cover fixedly connected to the top of the lifting base, two sets of connecting pipes symmetrically fixedly connected between the collection cover and the lifting base, and a cooling pipe fixedly connected to the upper part of the inner side of the collection cover.

[0008] Preferably, the transmission assembly includes a reciprocating screw and a transmission unit. Cylinders are fixedly connected to the top of the support base and to both sides of the fixed cover. The output ends of both cylinders are fixedly connected to the lifting seat. A reciprocating screw is rotatably connected to the top of the support base and to both sides of the lower mold. The spray frame is connected to the outside of the reciprocating screw via a screw-nut pair. A first motor is fixedly connected inside the support base. A first synchronous pulley is rotatably connected to the upper part of the inside of the support base. The output end of the first motor is fixedly connected to the first synchronous pulley. Second synchronous pulleys are fixedly connected to the bottom of both reciprocating screws extending into the inside of the support base. The first synchronous pulley and the two second synchronous pulleys are respectively connected by two synchronous belts. The scraper can move through the transmission unit.

[0009] Preferably, the transmission unit includes a sliding frame, which is slidably connected to the top side of the support base. The scraper is slidably connected to the inside of the sliding frame. A transmission screw is rotatably connected to the inside side of the support base. The sliding frame is connected to the outside of the transmission screw through a screw-nut pair. A second motor is fixedly connected to the outside side of the support base through a mounting plate. The output end of the second motor extends into the inside of the support base and is fixedly connected to the transmission screw.

[0010] Preferably, the reciprocating assembly includes a third motor and an eccentric wheel. The top of the sliding frame is fixedly connected to the third motor via a limiting plate. The eccentric wheel is rotatably connected to the lower part of the limiting plate. The output end of the third motor is fixedly connected to the eccentric wheel. A sliding shaft is fixedly connected to one side of the bottom of the eccentric wheel. A sliding groove is provided on one side of the top of the scraper. The sliding shaft is slidably connected to the inside of the sliding groove.

[0011] Preferably, fans are installed on both sides of the outer side of the collection cover and outside the two sets of connecting pipes, and the top of the upper mold extends to the outside of the protective cover and is fixedly connected to a pouring port.

[0012] Preferably, the spray frame is fixedly connected to the inner side of the spraying frame at equal intervals, the bottom of the support base is fixedly connected to the water tank, and the bottom two sides of the spray frame are provided with first hoses extending through the inner wall of the support base into the water tank. One end of each of the two first hoses extends into the water tank and is fixedly connected to a booster pump. The two ends of the cooling pipe extend into the outside of the collection cover and are fixedly connected to second hoses. One end of each of the two second hoses extends into the water tank and is fixedly connected to a water pump.

[0013] Preferably, a collection box is slidably connected inside the collection cover and below the cooling pipe, a filling port is fixedly connected to one side of the upper part of the water tank, and heat dissipation holes are provided inside the support base and on both sides of the first motor.

[0014] Preferably, a control panel is installed on one side of the top of the support base, and the fan, cylinder, first motor, water pump, second motor, third motor and booster pump are all electrically connected to the control panel. Support legs are symmetrically fixedly connected to both sides of the bottom of the support base.

[0015] Preferably, a collection plate is fixedly connected to the top of the support base and the bottom of the lower mold. An inclined surface is provided on the top of the collection plate and the outside of the lower mold. Collection grooves are provided at equal intervals inside the collection plate and the outside of the lower mold. The collection grooves penetrate the inner wall of the support base and extend into the interior of the water tank.

[0016] 1. This invention can seal and protect the lower and upper molds simultaneously with the mold closing process using a protective cover and a fixing cover. This prevents the large amount of water vapor generated during the subsequent cooling of the lower and upper molds from spreading throughout the workshop, thus affecting the working environment and the visibility of the workers. After pouring high-temperature molten aluminum, a spray frame with nozzles can spray cooling water onto the lower and upper molds to cool them down. This prevents the high-temperature molten aluminum from contacting the mold cavity and causing the lower and upper molds to heat up rapidly, leading to mold thermal fatigue, poor casting, and reduced production efficiency. Before demolding, the lower and upper molds can also be sprayed with cooling water to cool them down, facilitating quick demolding by the workers. Furthermore, a fan with an air inlet and connecting pipe can draw water vapor into the inside of a collection hood, and then convert the water vapor into water through a cooling pipe, achieving water vapor recycling and reuse. This effectively avoids water waste and reduces production costs.

[0017] 2. The present invention uses a high-frequency reciprocating scraper to remove residual edges and risers on the workpiece before demolding, eliminating the need for manual secondary cleaning of residual edges and risers after demolding, thereby effectively improving processing efficiency and reducing the workload of workers.

[0018] 3. In the process of spraying and cooling the lower and upper molds through the spray frame, most of the cooling water is converted into water vapor after contacting the high-temperature mold. Some of the water does not convert into water vapor and drips downwards. The water droplets can be collected by the inclined surface of the collecting plate, so that the water droplets slide down the inclined surface into the collecting tank, and then fall into the water tank. This avoids water dripping everywhere, which would cause waste and be difficult to clean, and further saves water resources, realizing the recycling of water resources. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a rear perspective view of the present invention;

[0022] Figure 3 This is a cross-sectional view of the present invention;

[0023] Figure 4 This is a cross-sectional view from another perspective of the present invention;

[0024] Figure 5 This is a cross-sectional view of the sliding frame in this invention;

[0025] Figure 6 This is a perspective view of the collecting plate in this invention;

[0026] Figure 7 For the present invention Figure 3 Enlarged view of point A in the middle;

[0027] Figure 8 For the present invention Figure 3 Enlarged view of section B in the middle.

[0028] In the diagram: 1. Support base; 2. Fixed cover; 3. Lower mold; 4. Lifting base; 5. Protective cover; 6. Air inlet; 7. Collection cover; 8. Connecting pipe; 9. Fan; 10. Cooling pipe; 11. Upper mold; 12. Scraper; 13. Spray frame; 14. Cylinder; 15. Reciprocating screw; 16. First motor; 17. First synchronous pulley; 18. Second synchronous pulley; 19. Synchronous belt; 20. First hose; 21. Nozzle; 22. Pour port; 23. Water tank; 24. Second hose; 25. Water pump; 26. Sliding frame; 27. Transmission screw; 28. Second motor; 29. ​​Third motor; 30. Eccentric wheel; 31. Sliding shaft; 32. Slide groove; 33. Collection box; 34. Filling port; 35. Control panel; 36. Collection plate; 37. Collection trough; 38. Booster pump. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] Please see Figure 1-8As shown, an aluminum alloy die-casting device includes a support base 1, a fixed cover 2 fixedly connected to the top of the support base 1, a lower mold 3 disposed inside the fixed cover 2, a scraper 12 disposed on the top of the support base 1 and on one side of the fixed cover 2, a spray frame 13 slidably connected to the inner side of the fixed cover 2 via a limiting rod, a recycling assembly disposed above the fixed cover 2, a transmission assembly disposed on the top of the support base 1, a reciprocating assembly disposed above the scraper 12, the recycling assembly includes a lifting base 4, a lifting base 4 slidably connected to the top of the support base 1 and above the fixed cover 2 via a limiting rod, a protective cover 5 fixedly connected to the bottom of the lifting base 4, an upper mold 11 fixedly connected to the lower part of the inner side of the protective cover 5, multiple sets of air inlets 6 fixedly connected at equal intervals to the bottom of the lifting base 4, a collection cover 7 fixedly connected to the top of the lifting base 4, two sets of connecting pipes 8 symmetrically fixedly connected between the collection cover 7 and the lifting base 4, a cooling pipe 10 fixedly connected to the upper part of the inner side of the collection cover 7, and a transmission assembly. The component includes a reciprocating screw 15 and a transmission unit. Cylinders 14 are fixedly connected to the top of the support base 1 and to both sides of the fixed cover 2. The output ends of both cylinders 14 are fixedly connected to the lifting seat 4. Reciprocating screws 15 are rotatably connected to the top of the support base 1 and to both sides of the lower mold 3. The spray frame 13 is connected to the outside of the reciprocating screws 15 via a screw-nut pair. A first motor 16 is fixedly connected inside the support base 1. A first synchronous pulley 17 is rotatably connected to the upper part of the inside of the support base 1. The output end of the first motor 16 is fixedly connected to the first synchronous pulley 17. Second synchronous pulleys 18 are fixedly connected to the bottom of the two reciprocating screws 15 extending into the inside of the support base 1. The first synchronous pulley 17 and the two second synchronous pulleys 18 are respectively connected by two synchronous belts 19. The scraper 12 can move through the transmission unit, which includes a sliding frame 26. The sliding frame 26 is slidably connected to one side of the top of the support base 1. The scraper 12 moves laterally (along...) Figure 5 (Left and right directions) Sliding connection is made inside the sliding frame 26. A transmission screw 27 is rotatably connected to one side of the inside of the support base 1. The sliding frame 26 is connected to the outside of the transmission screw 27 through a screw and nut pair. A second motor 28 is fixedly connected to the outside of the support base 1 through a mounting plate. The output end of the second motor 28 extends into the inside of the support base 1 and is fixedly connected to the transmission screw 27. The reciprocating assembly includes a third motor 29 and an eccentric wheel 30. The top of the sliding frame 26 is fixedly connected to the third motor 29 through a limiting plate. An eccentric wheel 30 is rotatably connected to the lower inside of the limiting plate. The output end of the third motor 29 is fixedly connected to the eccentric wheel 30. A sliding shaft 31 is fixedly connected to one side of the bottom of the eccentric wheel 30. A sliding groove 32 is opened on one side of the top of the scraper 12. The sliding shaft 31 is slidably connected to the inside of the sliding groove 32.

[0032] During operation, when die-casting automotive aluminum alloy parts is required, the cylinder 14 drives the lifting seat 4 to descend, which in turn drives the protective cover 5 and the upper mold 11 to descend until the protective cover 5 is inserted into the slot at the top of the fixed cover 2 to achieve a seal, and the upper mold 11 is tightly closed over the lower mold 3. Molten aluminum can then be poured into the lower mold 3 through the pouring port 22. After pouring, the high-temperature molten aluminum comes into contact with the mold cavity, causing the lower mold 3 and the upper mold 11 to heat up rapidly. The booster pump 38 and the first motor 16 are then activated, causing the booster pump 38 to draw cooling water from the water tank 23 into the spray frame 13 through the first hose 20. The water is then sprayed onto the surfaces of the lower mold 3 and the upper mold 11 through the nozzles 21 inside the spray frame 13 for rapid cooling. Cooling effectively prevents mold thermal fatigue and poor casting if the lower mold 3 and upper mold 11 are not cooled in time after heating, thus reducing production efficiency. Furthermore, during the cooling process of the lower mold 3 and upper mold 11 by spraying cooling water, a large amount of water vapor is generated upon contact with the high-temperature mold. The fixed cover 2 and protective cover 5 can isolate the water vapor, preventing it from spreading throughout the workshop and causing the workshop temperature to rise, thus affecting the normal work of the staff. The large amount of water vapor diffusion can also affect the staff's vision, thus affecting the work progress. Simultaneously, the fan 9 is activated, drawing the water vapor inside the protective cover 5 into the lifting seat 4 through multiple air inlets 6, and then discharging the water vapor through two sets of connecting pipes 8. Air is drawn into the collection hood 7, and two water pumps 25 inside the water tank 23 pump and drain water respectively, circulating the cooling water inside the water tank 23 into the cooling pipe 10 to cool the cooling pipe 10. Water vapor is then adsorbed through the cooling pipe 10. Upon contact with the cooling pipe 10, the water vapor releases heat and is converted into water droplets, which fall into the collection box 33 for collection. This completes the isolation and recovery of water vapor, converting it back into water for collection, thus achieving water vapor recycling. This effectively avoids water waste and reduces production costs. When demolding is required after die-casting of automotive aluminum alloy parts, the lower mold 3 and upper mold 11 can be sprayed and cooled again through the spray rack 13, and the generated water vapor can be isolated again. The process of heat recovery and regeneration allows for rapid cooling of the workpiece and mold body, facilitating quick demolding and improving demolding efficiency. Then, cylinder 14 pushes the lifting seat 4 and upper mold 11 upwards. Simultaneously, the second motor 28 and third motor 29 are activated. The output of the second motor 28 drives the transmission screw 27 to rotate, which in turn drives the sliding frame 26 and scraper 12 to move upwards towards the lower mold 3 via the screw-nut pair. At the same time, the output of the third motor 29 drives the eccentric wheel 30 to rotate, causing the bottom sliding shaft 31 to slide within the sliding groove 32. This drives the scraper 12 to perform high-frequency reciprocating motion within the sliding frame 26, scraping away any remaining excess material and risers at the top of the lower mold 3.This eliminates the need for manual secondary cleaning of excess material and risers after demolding, effectively improving processing efficiency and reducing the workload of workers. The automotive aluminum alloy workpiece can be demolded immediately after cleaning the excess material and risers.

[0033] This device can seal and protect the lower mold 3 and upper mold 11 simultaneously with the mold closing process using a protective cover 5 and a fixed cover 2. This prevents the large amount of water vapor generated during the subsequent cooling process of the lower mold 3 and upper mold 11 from spreading throughout the workshop, thus affecting the working environment and the visibility of the workers. Furthermore, after pouring the high-temperature molten aluminum, the spray frame 13, in conjunction with the spray nozzles 21, can spray cooling water onto the lower mold 3 and upper mold 11 to lower their temperature. This prevents the lower mold 3 and upper mold 11 from rapidly heating up upon contact with the mold cavity, which could lead to mold thermal fatigue, poor casting, and consequently, reduced production efficiency. Before demolding... Similarly, cooling water can be sprayed onto the lower mold 3 and the upper mold 11 to cool them down, which facilitates quick demolding by the workers. The fan 9, together with the air inlet 6 and the connecting pipe 8, can draw water vapor into the inside of the collection hood 7, and then convert the water vapor into water through the cooling pipe 10, realizing the recycling and reuse of water vapor, thereby effectively avoiding the waste of water resources and reducing production costs. Before demolding, the scrap and riser remaining on the workpiece can be scraped off by the high-frequency reciprocating scraper 12, eliminating the need for manual secondary cleaning of the scrap and riser after demolding, thereby effectively improving processing efficiency and reducing the labor burden of the workers.

[0034] Among them, fans 9 are installed on both sides of the outer side of the collection cover 7 and outside the two sets of connecting pipes 8. The top of the upper mold 11 extends to the outside of the protective cover 5 and is fixedly connected to the pouring port 22. Spray nozzles 21 are fixedly connected at equal intervals on the inner side of the spray frame 13. The bottom of the support base 1 is fixedly connected to the water tank 23. The bottom sides of the spray frame 13 are provided with first hoses 20 extending through the inner wall of the support base 1 to the inside of the water tank 23. One end of the two first hoses 20 extends to the inside of the water tank 23 and is fixedly connected to the booster pump 38. The two ends of the cooling pipe 10 extend to the outside of the collection cover 7 and are fixedly connected to the second hose 24. One end of the two second hoses 24 extends to the inside of the water tank 23 and is fixedly connected to the water pump 25. The collection box 33 is slidably connected inside the collection cover 7 and below the cooling pipe 10. The filling port 34 is fixedly connected to one side of the upper part of the water tank 23. The support base 1 is provided with heat dissipation holes on both sides of the first motor 16.

[0035] Through the above technical solution, water converted from water vapor can be collected by pulling out the collection box 33. After collection, the water can be injected into the water tank 23 through the filling port 34, realizing the recycling of cooling water. The heat dissipation holes can dissipate heat from the first motor 16, preventing the first motor 16 from being damaged due to excessive temperature.

[0036] The support base 1 has a control panel 35 installed on one side of its top. The fan 9, cylinder 14, first motor 16, water pump 25, second motor 28, third motor 29 and booster pump 38 are all electrically connected to the control panel 35. Support legs are symmetrically fixedly connected to both sides of the bottom of the support base 1.

[0037] Through the above technical solution, the control panel 35 allows operators to quickly control the fan 9, cylinder 14, first motor 16, water pump 25, second motor 28, third motor 29 and booster pump 38. The support legs effectively improve the stability of the device during operation.

[0038] Example 2

[0039] Please see Figure 6 As shown in the first embodiment, as another implementation of the present invention, a collection plate 36 is fixedly connected to the top of the support base 1 and the bottom of the lower mold 3. An inclined surface is provided on the top of the collection plate 36 and the outside of the lower mold 3. Collection grooves 37 are provided at equal intervals inside the collection plate 36 and the outside of the lower mold 3. The collection grooves 37 penetrate the inner wall of the support base 1 and extend into the interior of the water tank 23.

[0040] During operation, when the lower mold 3 and the upper mold 11 are cooled by spraying water through the spray rack 13, most of the cooling water is converted into water vapor after contacting the high-temperature mold. Some of the water does not turn into water vapor and drips downwards. The water droplets can be collected by the inclined surface of the edge of the collection plate 36, so that the water droplets slide down into the collection tank 37 and then fall into the water tank 23. This avoids water dripping everywhere, which would cause waste and be difficult to clean, and further saves water resources, realizing the recycling of water resources.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above 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 one or more embodiments or examples.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An aluminum alloy die-casting device, comprising a support base (1), a fixed cover (2) fixedly connected to the top of the support base (1), a lower mold (3) provided inside the fixed cover (2), a scraper (12) provided on the top of the support base (1) and on one side of the fixed cover (2), a spray frame (13) slidably connected to the inner side of the fixed cover (2) via a limiting rod, and a recycling component provided above the fixed cover (2); Its features are: The recycling assembly includes a lifting seat (4), the top of the support seat (1) and above the fixed cover (2) is slidably connected to the lifting seat (4) via a limiting rod, the bottom of the lifting seat (4) is fixedly connected to a protective cover (5), the lower inside of the protective cover (5) is fixedly connected to an upper mold (11), and the bottom of the lifting seat (4) is fixedly connected to multiple sets of air inlets (6) at equal intervals. The top of the lifting seat (4) is fixedly connected to a collection cover (7), and two sets of connecting pipes (8) are symmetrically fixedly connected between the collection cover (7) and the lifting seat (4). A cooling pipe (10) is fixedly connected to the upper part of the inside of the collection cover (7).

2. The aluminum alloy die-casting apparatus according to claim 1, characterized in that: A transmission assembly is provided on the top of the support base (1). The transmission assembly includes a reciprocating screw (15) and a transmission unit. Cylinders (14) are fixedly connected to the top of the support base (1) and on both sides of the fixed cover (2). The output ends of the two cylinders (14) are fixedly connected to the lifting seat (4). A reciprocating screw (15) is rotatably connected to the top of the support base (1) and on both sides of the lower mold (3). The spray frame (13) is connected to the outside of the reciprocating screw (15) through a screw-nut pair. The first motor (16) is fixedly connected inside the support base (1). The first synchronous pulley (17) is rotatably connected to the upper part of the support base (1). The output end of the first motor (16) is fixedly connected to the first synchronous pulley (17). The bottom of the two reciprocating screws (15) extends into the support base (1) and is fixedly connected to the second synchronous pulley (18). The first synchronous pulley (17) and the two second synchronous pulleys (18) are respectively connected by two synchronous belts (19). The scraper (12) moves through the transmission unit.

3. The aluminum alloy die-casting apparatus according to claim 2, characterized in that: The transmission unit includes a sliding frame (26), which is slidably connected to the top side of the support base (1). The scraper (12) is slidably connected to the inside of the sliding frame (26). A transmission screw (27) is rotatably connected to the inside side of the support base (1). The sliding frame (26) is connected to the outside of the transmission screw (27) through a screw nut pair. A second motor (28) is fixedly connected to the outside side of the support base (1) through a mounting plate. The output end of the second motor (28) extends into the inside of the support base (1) and is fixedly connected to the transmission screw (27).

4. The aluminum alloy die-casting device according to claim 3, characterized in that: A reciprocating assembly is provided above the scraper (12). The reciprocating assembly includes a third motor (29) and an eccentric wheel (30). The top of the sliding frame (26) is fixedly connected to the third motor (29) through a limiting plate. The eccentric wheel (30) is rotatably connected to the lower part of the limiting plate. The output end of the third motor (29) is fixedly connected to the eccentric wheel (30). A sliding shaft (31) is fixedly connected to one side of the bottom of the eccentric wheel (30). A sliding groove (32) is provided on one side of the top of the scraper (12). The sliding shaft (31) is laterally slidably connected to the inside of the sliding groove (32).

5. The aluminum alloy die-casting apparatus according to claim 4, characterized in that: Fans (9) are installed on both sides of the outer side of the collection cover (7) and outside the two sets of connecting pipes (8). The top of the upper mold (11) extends to the outside of the protective cover (5) and is fixedly connected to the pouring port (22).

6. The aluminum alloy die-casting apparatus according to claim 4, characterized in that: Sprayers (21) are fixedly connected at equal intervals on the inner side of the spray frame (13). A water tank (23) is fixedly connected to the bottom of the support base (1). First hoses (20) are provided on both sides of the bottom of the spray frame (13) through the inner wall of the support base (1) and extending into the interior of the water tank (23). A booster pump (38) is fixedly connected to one end of each of the two first hoses (20) extending into the interior of the water tank (23). Second hoses (24) are fixedly connected to both ends of the cooling pipe (10) extending into the outside of the collection cover (7). A water pump (25) is fixedly connected to one end of each of the two second hoses (24) extending into the interior of the water tank (23).

7. The aluminum alloy die-casting apparatus according to claim 6, characterized in that: A collection box (33) is slidably connected inside the collection cover (7) and below the cooling pipe (10). A filling port (34) is fixedly connected to one side of the water tank (23) on the outside. Heat dissipation holes are provided inside the support base (1) and on both sides of the first motor (16).

8. The aluminum alloy die-casting apparatus according to claim 5, characterized in that: A control panel (35) is installed on one side of the top of the support base (1). The fan (9), cylinder (14), first motor (16), water pump (25), second motor (28), third motor (29) and booster pump (38) are all electrically connected to the control panel (35). Support legs are symmetrically fixedly connected to both sides of the bottom of the support base (1).

9. The aluminum alloy die-casting apparatus according to claim 1, characterized in that: A collection plate (36) is fixedly connected to the top of the support base (1) and the bottom of the lower mold (3). An inclined surface is provided on the top of the collection plate (36) and the outside of the lower mold (3). Collection grooves (37) are provided at equal intervals inside the collection plate (36) and the outside of the lower mold (3). The collection grooves (37) penetrate the inner wall of the support base (1) and extend into the interior of the water tank (23).

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