Aluminum alloy die casting apparatus

Abstract

The present application relates to the field of aluminum alloy processing, and particularly relates to an aluminum alloy die casting device capable of preventing air holes, which comprises a workbench, a supporting frame connected to the workbench, a fixed mold connected in the supporting frame, a movable mold connected in the supporting frame in a sliding mode, a compression chamber fixedly connected to the supporting frame, a left part of the compression chamber communicated with the fixed mold, an inlet opening formed in the upper right part of the compression chamber, a piston connected in the compression chamber in a sliding mode, a moving frame connected to the piston, the moving frame and the compression chamber connected in a sliding mode, an adjusting piece connected in the compression chamber in a sliding mode, the adjusting piece penetrating out of the compression chamber, an opening and closing mechanism arranged between the adjusting piece and the compression chamber for opening and closing, and a limiting mechanism arranged on the adjusting piece for limiting the adjusting piece. The device can manually adjust the liquid storage volume of the compression chamber according to the specifications of aluminum alloy workpieces, accurately adapt to different liquid volumes, and does not need complex electric control and parameter adjustment, so that the operation is simple, efficient, the aluminum liquid fills the compression chamber through volume pre-adjustment, and the internal air is effectively isolated.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy processing, and more particularly to an aluminum alloy die-casting device that prevents porosity. Background Technology

[0002] Aluminum alloy die casting is a highly efficient and precise metal forming process. Its core working principle is as follows: molten aluminum is poured into the pressure chamber of the die casting device. Through the high pressure of the piston, the aluminum liquid is quickly and smoothly pressed into the pre-formed mold cavity. After the aluminum liquid cools and solidifies, the desired shape of the aluminum alloy workpiece can be obtained.

[0003] In the aluminum alloy die casting process, controlling the amount of molten aluminum poured is one of the key factors affecting workpiece quality and production efficiency. Because the amount of molten aluminum required for forming aluminum alloy workpieces of different specifications and volumes varies significantly, when the amount of molten aluminum poured is insufficient, negative pressure easily forms inside the mold cavity as the piston pushes the molten aluminum in, preventing air from being expelled in time and causing it to be trapped in the molten aluminum, forming pores. When the amount of molten aluminum poured is excessive, the flow resistance of the excess molten aluminum in the mold increases, easily generating turbulence, leading to air being entrained in the molten aluminum, which also increases the probability of pore formation. Currently, the amount of molten aluminum poured in aluminum alloy die casting equipment mainly relies on the machine control system for quantitative control. Operators typically need to pre-set the amount of molten aluminum poured in the control system based on the workpiece's volume parameters, and then use components such as metering pumps and flow valves to achieve quantitative delivery and pouring of the molten aluminum. However, this control method has many inconveniences: operators need to repeatedly debug and calibrate the parameters of the control system for each different specification of workpiece. The operation process is cumbersome, time-consuming and labor-intensive. Especially in the case of multi-variety and small-batch production, frequent parameter adjustments will seriously reduce production efficiency. Therefore, it is urgent to develop an aluminum alloy die-casting device that prevents air holes. Summary of the Invention

[0004] Technical solution: An aluminum alloy die-casting device for preventing air holes includes a worktable, a support frame connected to the worktable, a fixed mold connected inside the support frame, a movable mold slidably connected inside the support frame, a pressure chamber fixedly connected to the support frame, the left side of the pressure chamber communicating with the fixed mold, an inlet opening on the upper right side of the pressure chamber, a piston slidably connected inside the pressure chamber, a movable frame connected to the piston, the movable frame slidably connected to the pressure chamber, an adjusting component slidably connected inside the pressure chamber, the adjusting component extending out of the pressure chamber, an opening and closing mechanism for opening and closing between the adjusting component and the pressure chamber, and a limiting mechanism for limiting the adjusting component.

[0005] Furthermore, the opening and closing mechanism includes a perforated disc, which is rotatably connected to the adjusting component on the side away from the moving frame. The adjusting component has a discharge port, and a threaded block is connected to the side of the pressure chamber away from the moving frame. A threaded rod is fixedly connected to the perforated disc, and the threaded rod and the threaded block are threadedly engaged.

[0006] Furthermore, the limiting mechanism includes limiting members, which are symmetrically arranged and slidably connected to the adjusting member. A first spring connects the limiting members and the adjusting member. The movable frame has multiple equally spaced locking holes, which are pressed together with the limiting members.

[0007] Furthermore, it also includes an ejector frame, symmetrically arranged ejector frames that are slidably connected to a movable frame, the ejector frames and the limiting members being pressed together, a second spring connecting the ejector frame and the movable frame, symmetrically arranged first wedge blocks connected to the ejector frame, a push block slidably connected to the movable frame, the push block being connected to symmetrically arranged second wedge blocks, the second wedge blocks and the first wedge blocks being pressed together, and a third spring connecting the push block and the movable frame.

[0008] Furthermore, it also includes a third wedge block, which is slidably connected to the movable frame. The push block has an inclined surface, which is pressed and engaged with the third wedge block. The third wedge block is connected to a fourth wedge block, and a fourth spring is connected between the fourth wedge block and the movable frame. The worktable is connected to symmetrically arranged fixed plates, one of which is connected to symmetrically arranged wedge frames, which are pressed and engaged with the fourth wedge block.

[0009] Furthermore, it also includes a push-pull component, which is slidably connected to the push block. A first screw is rotatably connected to the pressure chamber. A servo motor is connected to a fixed plate on the side away from the pressure chamber. The output shaft of the servo motor is connected to the first screw. The first screw and the push-pull component are threadedly connected. A second screw is rotatably connected between the fixed plates. The second screw is threaded. The thread on the second screw is threadedly connected to the push-pull component. A first gear is connected to the side of the second screw away from the thread. A perforated ring is rotatably connected to the pressure chamber. The hole on the perforated ring communicates with the feed port. A missing gear is connected to the perforated ring. The missing gear meshes with the first gear.

[0010] Furthermore, it also includes an ejector, which is slidably connected to the moving mold. A fifth spring connects the ejector and the moving mold. The support frame is connected to symmetrically arranged abutment blocks, which are pressed together with the ejector.

[0011] Furthermore, it also includes a cutter, which is slidably connected to the moving mold. The cutter is fixedly connected to a third screw. The moving mold is rotatably connected to symmetrically arranged second gears. The second gears and the third screw are threadedly connected. A rack is connected to the top of the worktable, and the rack meshes with the second gear.

[0012] Furthermore, it also includes a lifting frame, which is slidably connected to the upper part of the support frame. The lifting frame is connected to a sprayer and a slant rail. The moving mold is connected to a column, and the column and the slant rail are pressed together.

[0013] Furthermore, it also includes liquid storage tanks, which are symmetrically arranged and fixedly connected to the support frame. The bottom of the liquid storage tanks is connected to a hose, which is connected to the sprayer.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The liquid storage volume of the pressure chamber can be manually adjusted according to the specifications of the aluminum alloy workpiece, accurately adapting to different liquid volumes. It does not require complex electrical control parameter adjustment, and the operation is simple and efficient. The liquid aluminum fills the pressure chamber through volume pre-adjustment, effectively isolating the internal air, greatly reducing the defects of gas porosity in die casting, improving the density and forming quality of the workpiece, and realizing automatic switching of the perforated plate for material discharge with the help of threaded engagement. The piston pushes the material smoothly and stably.

[0015] 2. This structure is equipped with a linkage wedge locking and elastic separation mechanism. After the adjusting part reaches the limit position, there is no need to manually press the limiting part. It can automatically squeeze and release the limit by relying on power drive. The spring and wedge block cooperate to achieve self-locking and continuously keep the limiting part out of the jamming hole, allowing the piston to smoothly complete the pushing operation, saving manual operation steps and simplifying the operation process.

[0016] 3. This device uses a servo motor linked to a gear transmission structure to automatically drive the perforated ring to rotate and seal the feed port before the piston push operation, effectively preventing the aluminum liquid from overflowing from the feed port during the die casting process, thus avoiding material waste and on-site pollution. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a partial three-dimensional structural cross-sectional view of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the adjusting component and threaded rod of the present invention.

[0020] Figure 4 For the present invention Figure 2 A schematic diagram of the three-dimensional structure at point A in the middle.

[0021] Figure 5 For the present invention Figure 2 A schematic diagram of the three-dimensional structure at point B.

[0022] Figure 6 This is a three-dimensional structural diagram of the fourth spring, the fourth wedge block, and the wedge frame of the present invention.

[0023] Figure 7 For the present invention Figure 1 A schematic diagram of the three-dimensional structure at point C.

[0024] The meanings of the reference numerals in the diagram are as follows: 1. Workbench; 2. Support frame; 201. Fixed plate; 3. Fixed mold; 4. Moving mold; 5. Pressure chamber; 6. Piston; 7. Moving frame; 8. Adjusting component; 801. Discharge port; 802. Perforated plate; 803. Threaded block; 804. Threaded rod; 9. Limiting component; 10. First spring; 11. Locking hole; 12. Ejector frame; 13. Second spring; 14. First wedge block; 15. Second wedge block; 16. Third spring; 17. Push block; 18. Push-pull component; 19. 20. First screw, 21. Servo motor, 22. Second screw, 23. First gear, 24. Perforated ring, 25. Gear missing, 26. Third wedge block, 27. Inclined surface, 28. Fourth wedge block, 29. Wedge frame, 30. Ejector, 31. Fifth spring, 32. Abutment block, 33. Cutter, 34. Third screw, 35. Second gear, 36. Rack, 37. Sprayer, 38. Lifting frame, 40. Inclined rail frame, 40. Column, 41. Hose, 42. Liquid reservoir. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] An aluminum alloy die-casting device to prevent air holes, such as Figures 1-3 As shown, the device includes a workbench 1, a support frame 2 fixedly connected to the top left side of the workbench 1, a fixed mold 3 fixedly connected to the right side of the support frame 2, a movable mold 4 slidably connected to the support frame 2, a pressure chamber 5 fixedly connected to the right side of the support frame 2, the left side of the pressure chamber 5 communicating with the fixed mold 3, a feed port opening on the upper right side of the pressure chamber 5, a piston 6 slidably connected to the pressure chamber 5, a movable frame 7 fixedly connected to the right side of the piston 6, the movable frame 7 slidably connected to the pressure chamber 5, an adjusting member 8 slidably connected to the pressure chamber 5, the right side of the adjusting member 8 protruding from the pressure chamber 5, an opening and closing mechanism for opening and closing is provided between the left side of the adjusting member 8 and the pressure chamber 5, and a mechanism for limiting the adjusting member 8 is provided on the right side. The limiting mechanism includes a perforated disc 802, which is rotatably connected to the left side of the adjusting member 8. The left side of the adjusting member 8 has a discharge port 801. A threaded block 803 is fixedly connected to the left side of the pressure chamber 5. A threaded rod 804 is fixedly connected to the left side of the perforated disc 802. The threaded rod 804 and the threaded block 803 are threadedly engaged. The limiting mechanism includes a limiting member 9, which is slidably connected to the upper and lower sides of the right side of the adjusting member 8. A first spring 10 is connected between the limiting member 9 and the adjusting member 8. Multiple equally spaced locking holes 11 are opened on the upper and lower sides of the moving frame 7. The locking holes 11 and the limiting member 9 are pressed together.

[0027] When using this anti-air-hole aluminum alloy die-casting device, the capacity of the molten aluminum in the pressure chamber 5 can be adjusted according to the size of the aluminum alloy workpiece to be made. The limiting member 9 can be manually pressed down and retracted, compressing the first spring 10. After the limiting member 9 separates from the locking hole 11, the adjusting member 8 can be held and adjusted left and right. Adjusting the adjusting member 8 to the left increases the capacity, and adjusting it to the right decreases the capacity. After adjustment, the limiting member 9 is released. Under the action of the first spring 10, the limiting member 9 moves outward and resets, locking into the locking hole 11. This restricts the position of the adjusting member 8. Molten aluminum can then be poured into the pressure chamber 5 from the inlet. After the pressure chamber 5 is full, there is no air between the adjusting member 8 and the piston 6, preventing air bubbles from forming during subsequent die casting. Next, the moving mold 4 moves to the right and merges with the fixed mold 3 via electrical control. Then, a driving force controls the moving frame 7 to move to the left. The moving frame 7, through the limiting member 9, pushes the adjusting member 8 to move to the left, which in turn moves the perforated disc. 802 and threaded rod 804 move to the left. When threaded rod 804 contacts threaded block 803, it will cause threaded rod 804 to rotate. The rotation of threaded rod 804 will cause perforated disc 802 to rotate 180 degrees. When the left part of adjusting part 8 and the left part of pressure chamber 5 are in contact, adjusting part 8 stops moving. At this time, the hole of perforated disc 802 and discharge port 801 are aligned, and then the limiting part 9 is pressed, so that the limiting part 9 is away from the jamming hole 11. People continue to move moving frame 7 to the left. The movement of moving frame 7 to the left will cause piston 6 to move to the left. Piston 6 injects molten aluminum from outlet 801 into the mold to achieve die casting. After die casting is completed, the mold 4 is moved to the left and reset by electronic control, allowing the aluminum alloy workpiece to be removed. Then, the moving frame 7, piston 6, and adjusting component 8 are moved and reset. When the perforated disc 802 and threaded rod 804 move to the right, the threaded block 803 causes the threaded rod 804 and perforated disc 802 to reverse and reset. In summary, the amount of molten aluminum injected can be adjusted according to the size of the aluminum alloy workpiece.

[0028] like Figure 2 , Figure 4 and Figure 5 As shown, it also includes an ejector frame 12, which is slidably connected to the upper and lower sides of the movable frame 7. The ejector frame 12 and the limiting member 9 are pressed together. A second spring 13 is connected between the left and right sides of the ejector frame 12 and the movable frame 7. A first wedge block 14 is fixedly connected to the right side of the ejector frame 12. A push block 17 is slidably connected to the right side of the movable frame 7. A second wedge block 15 is fixedly connected to the upper and lower sides of the left side of the push block 17. The second wedge block 15 and the first wedge block 14 are pressed together. A third spring 16 is connected between the upper and lower sides of the left side of the push block 17 and the movable frame 7.

[0029] like Figure 6As shown, it also includes a third wedge block 25, which is slidably connected to the right side of the moving frame 7. The push block 17 has inclined surfaces 26 on both the front and rear sides, which are pressed together with the third wedge block 25. A fourth wedge block 28 is fixedly connected to the outside of the third wedge block 25. A fourth spring 27 is connected between the fourth wedge block 28 and the moving frame 7. Two fixed plates 201 are fixedly connected to the upper right side of the worktable 1. Wedge frames 29 are fixedly connected to the front and rear sides of the upper part of the right fixed plate 201, which are pressed together with the fourth wedge block 28.

[0030] When the adjusting member 8 moves to its left limit, it stops moving. However, if the piston 6 needs to be moved to the left afterward, the limiting member 9 needs to be pinched to allow the piston 6 to move to the left independently, which is very troublesome. Therefore, the following solution is adopted: A person can drive the push block 17 to move to the left. The push block 17 drives the moving frame 7 to move to the left via the third spring 16. The moving frame 7 drives the piston 6 and the adjusting member 8 to move to the left. After the adjusting member 8 moves to its limit, the adjusting member 8 stops moving, and the moving frame 7 also stops moving due to the limiting member 9. At this time, the push block 17 continues to move to the left, the third spring 16 is compressed, and the push block 17 drives the second wedge block 15 to move to the left to squeeze the first wedge block 14. The first wedge block 14 moves inward, driving the ejector frame 12 to move inward. The ejector frame 12 will then squeeze the limiting member 9 inward away from the locking hole 11. The first spring 10 is compressed, and the second spring 13 is also compressed. Moreover, when the push block 17 moves to the left, the inclined plane 26 will push the third wedge block 25 to move outward, the fourth spring 27 is stretched, and the third wedge block 25 drives the fourth wedge block 28 to move outward. After the moving block 17 and the third wedge block 25 separate, the fourth spring 27 drives the third wedge block 25 and the fourth wedge block 28 to move inward and reset. At this time, the third wedge block 25 locks the push block 17, which allows the ejector frame 12 to hold the limiting member 9 in place, making the piston 6 push the material to the left more smoothly. When the piston 6 needs to be reset, the push block 17 is pulled to the right by the power. The push block 17 drives the moving frame 7 and its components to move to the right and reset. When the fourth wedge block 28 and the wedge frame 29 come into contact, the fourth wedge block 28 and the third wedge block 25 will move outward, and the fourth spring 27 will be stretched. In this way, the third wedge block 25 will release the push block 17. The third spring 16 drives the push block 17 to move to the right and reset. The push block 17 drives the second wedge block 15 to move to the right and reset. The second spring 13 drives the ejector frame 12 to move and reset, releasing the limiting member 9.

[0031] like Figure 2 , Figure 4 and Figure 5As shown, it also includes a push-pull component 18, which is slidably connected to the right side of the push block 17. The right side of the pressure chamber 5 is rotatably connected to a first screw 19. The upper part of the right-side fixing plate 201 is fixedly connected to a servo motor 20. The output shaft of the servo motor 20 is connected to the first screw 19. The first screw 19 and the push-pull component 18 are threadedly connected. The fixing plate 201 is rotatably connected to a second screw 21. The right side of the second screw 21 is threaded. The thread on the second screw 21 is threadedly connected to the push-pull component 18. The left side of the second screw 21 is fixedly connected to a first gear 22. The right side of the pressure chamber 5 is rotatably connected to a perforated ring 23. The hole on the perforated ring 23 communicates with the feed port. The right side of the perforated ring 23 is fixedly connected to a missing gear 24, which meshes with the first gear 22.

[0032] When piston 6 moves to the left, the feed port remains open, potentially causing molten aluminum to leak out. To address this, the following solution is implemented: The servo motor 20 is activated, its output shaft rotating to drive the first screw 19. The first screw 19 then moves the push-pull component 18 to the left. Due to a slight distance between the push-pull component 18 and the push block 17, the leftward movement of the push-pull component 18, coupled with the threaded engagement on the right side of the second screw 21, causes the second screw 21 to rotate, driving the first gear 22 to rotate. The first gear 22 then rotates the missing gear 24 90 degrees. Gear 24 drives the perforated ring 23 to rotate 90 degrees, causing the perforated ring 23 to block the feed port. Then, the push-pull member 18 continues to move to the left, which pushes the push block 17 and the piston 6 to move to the left. In this way, the feed port is automatically closed before the piston 6 moves. When the output shaft of the servo motor 20 reverses and drives the first screw 19 to reverse, it will drive the push-pull member 18 to move to the right to reset. After the push-pull member 18 contacts the second screw 21 again, it will drive the second screw 21 to reverse and reset. Through the reverse reset of the first gear 22 and the missing gear 24, the perforated ring 23 reverses and opens the feed port.

[0033] like Figure 1 As shown, it also includes an ejector 30, which is slidably connected to the moving mold 4. A fifth spring 31 is connected between the ejector 30 and the moving mold 4. Two abutting blocks 32 are fixedly connected to the left side of the support frame 2, and the abutting blocks 32 and the ejector 30 are pressed together.

[0034] When the moving mold 4 moves to the left, it causes the ejector 30 to move to the left. After the left part of the ejector 30 contacts the abutment block 32, the ejector 30 will stop. The moving mold 4 moves to the left, and the fifth spring 31 is compressed. In this way, the ejector 30 can push the aluminum alloy workpiece to the right and drop it for easy collection. When the moving mold 4 moves to the right, the ejector 30 moves and resets under the action of the fifth spring 31.

[0035] like Figure 2 and Figure 7As shown, it also includes a cutter 33, which is slidably connected to the front and rear sides of the moving mold 4. A third screw 34 is fixedly connected to the outside of each cutter 33. A second gear 35 is rotatably connected to the front and rear sides of the moving mold 4. The second gear 35 and the third screw 34 are threadedly connected. A rack 36 is fixedly connected to the front and rear sides of the top of the worktable 1. The rack 36 meshes with the second gear 35.

[0036] When the moving mold 4 moves to the left, it will carry out the sprue material, which will then need to be manually removed, which is very troublesome. Therefore, the following solution is designed: When the moving mold 4 moves to the left, causing the cutter 33 and the second gear 35 to move to the left, the second gear 35 and the rack 36 mesh, which causes the second gear 35 to drive the third screw 34 to move inward. The third screw 34 drives the cutter 33 to move inward to cut off the sprue. When the moving mold 4 moves to the right, the second gear 35 and the rack 36 come into contact again, which causes the cutter 33 to move outward and reset.

[0037] like Figure 1 As shown, it also includes a lifting frame 38, which is slidably connected to the upper part of the support frame 2. A sprayer 37 is fixedly connected to the lower part of the lifting frame 38. Inclined rails 40 are fixedly connected to both the front and rear sides of the lifting frame 38. Columns 401 are fixedly connected to both the front and rear sides of the upper part of the moving mold 4. Columns 401 and inclined rails 40 are pressed together.

[0038] like Figure 1 As shown, it also includes a liquid storage cylinder 42, which is fixedly connected to the left and right sides of the upper part of the support frame 2. The bottom of the liquid storage cylinder 42 is connected to a hose 41, and the lower part of the hose 41 is connected to the sprayer 37.

[0039] Before die casting, a release agent can be sprayed onto the mold to facilitate subsequent demolding. Therefore, a release agent is added inside the liquid storage cylinder 42. When the moving mold 4 moves to the left, it causes the column 401 to move to the left and cooperates with the inclined rail frame 40, which causes the inclined rail frame 40 to move down. The sixth spring is compressed, and the inclined rail frame 40 causes the sprayer 37 to move down. The sprayer 37 will automatically start spraying the release agent. When the moving mold 4 moves to the right, it causes the column 401 to move to the right, which allows the lifting frame 38 and the sprayer 37 to move up and reset.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An aluminum alloy die-casting device for preventing air holes, comprising a worktable (1), a support frame (2) connected to the worktable (1), a fixed mold (3) connected inside the support frame (2), a movable mold (4) slidably connected inside the support frame (2), a pressure chamber (5) fixedly connected to the support frame (2), the left side of the pressure chamber (5) communicating with the fixed mold (3), an inlet opening on the upper right side of the pressure chamber (5), and a piston (6) slidably connected inside the pressure chamber (5), characterized in that, The piston (6) is connected to the movable frame (7), the movable frame (7) and the pressure chamber (5) are slidably connected, the pressure chamber (5) is slidably connected to the adjusting member (8), the adjusting member (8) extends out of the pressure chamber (5), the adjusting member (8) and the pressure chamber (5) are provided with an opening and closing mechanism for opening and closing, and the adjusting member (8) is provided with a limiting mechanism for limiting the adjusting member (8).

2. The aluminum alloy die-casting device for preventing air holes as described in claim 1, characterized in that, The opening and closing mechanism includes a perforated disc (802), which is rotatably connected to the adjusting component (8) on the side away from the moving frame (7). The adjusting component (8) has a discharge port (801). A threaded block (803) is connected to the side of the pressure chamber (5) away from the moving frame (7). A threaded rod (804) is fixedly connected to the perforated disc (802). The threaded rod (804) and the threaded block (803) are threadedly engaged.

3. The aluminum alloy die-casting device for preventing air holes as described in claim 2, characterized in that, The limiting mechanism includes a limiting member (9), which is symmetrically arranged and slidably connected to the adjusting member (8). A first spring (10) is connected between the limiting member (9) and the adjusting member (8). Multiple equally spaced locking holes (11) are opened on the moving frame (7), and the locking holes (11) and the limiting member (9) are pressed together.

4. The aluminum alloy die-casting device for preventing air holes as described in claim 3, characterized in that, It also includes an ejector frame (12), which is symmetrically arranged and slidably connected to the movable frame (7). The ejector frame (12) and the limiting member (9) are pressed together. A second spring (13) is connected between the ejector frame (12) and the movable frame (7). A first wedge block (14) is symmetrically arranged on the ejector frame (12). A push block (17) is slidably connected on the movable frame (7). A second wedge block (15) is symmetrically arranged on the push block (17). The second wedge block (15) and the first wedge block (14) are pressed together. A third spring (16) is connected between the push block (17) and the movable frame (7).

5. The aluminum alloy die-casting device for preventing air holes as described in claim 4, characterized in that, It also includes a third wedge block (25), which is slidably connected to the moving frame (7). The push block (17) has an inclined surface (26), which is pressed and engaged with the third wedge block (25). The third wedge block (25) is connected to a fourth wedge block (28), and a fourth spring (27) is connected between the fourth wedge block (28) and the moving frame (7). The worktable (1) is connected to symmetrically arranged fixed plates (201), one of which is connected to a symmetrically arranged wedge frame (29), which is pressed and engaged with the fourth wedge block (28).

6. The aluminum alloy die-casting device for preventing air holes as described in claim 5, characterized in that, It also includes a push-pull component (18), which is slidably connected to the push block (17). A first screw (19) is rotatably connected to the pressure chamber (5). A servo motor (20) is connected to the fixed plate (201) on the side away from the pressure chamber (5). The output shaft of the servo motor (20) is connected to the first screw (19). The first screw (19) and the push-pull component (18) are threadedly connected. A second screw (21) is rotatably connected between the fixed plates (201). The second screw (21) is threaded. The thread on the second screw (21) is threadedly connected to the push-pull component (18). A first gear (22) is connected to the side of the second screw (21) away from the thread. A perforated ring (23) is rotatably connected to the pressure chamber (5). The hole on the perforated ring (23) is connected to the feed port. A missing gear (24) is connected to the perforated ring (23). The missing gear (24) meshes with the first gear (22).

7. The aluminum alloy die-casting device for preventing air holes as described in claim 6, characterized in that, It also includes an ejector (30), which is slidably connected to the moving mold (4). A fifth spring (31) is connected between the ejector (30) and the moving mold (4). The support frame (2) is connected to symmetrically arranged abutting blocks (32), which are pressed together with the ejector (30).

8. The aluminum alloy die-casting device for preventing air holes as described in claim 7, characterized in that, It also includes a cutter (33), which is slidably connected to the moving mold (4). The cutter (33) is fixedly connected to a third screw (34). The moving mold (4) is rotatably connected to a symmetrically arranged second gear (35). The second gear (35) and the third screw (34) are threadedly connected. The top of the worktable (1) is connected to a rack (36), which meshes with the second gear (35).

9. The aluminum alloy die-casting device for preventing air holes as described in claim 8, characterized in that, It also includes a lifting frame (38), which is slidably connected to the upper part of the support frame (2). The lifting frame (38) is connected to a sprayer (37), and the lifting frame (38) is connected to a slant rail frame (40). The moving mold (4) is connected to a column (401), and the column (401) and the slant rail frame (40) are pressed together.

10. The aluminum alloy die-casting device for preventing air holes as described in claim 9, characterized in that, It also includes a liquid storage cylinder (42), which is symmetrically arranged and fixedly connected to the support frame (2). The bottom of the liquid storage cylinder (42) is connected to a hose (41), and the hose (41) is connected to the sprayer (37).

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