Aluminum alloy profile casting equipment and casting method thereof

Abstract

The invention relates to the technical field of aluminum alloy profile casting, in particular to aluminum alloy profile casting equipment and a casting method thereof. The first half mold is arranged in the outer frame in a sliding manner; the second half mold is fixed in the outer frame, mold cavities are formed in the first half mold and the second half mold, and the two mold cavities are opposite to each other; the two exhaust ports are respectively formed in the first half mold and the second half mold; the air channel is formed in the outer frame, and the air channel is arranged right opposite to the two exhaust ports. Compared with the prior art, the molten aluminum is pushed into the mold cavity, and the air exhaust action is carried out at the same time, so that the situation that the molten aluminum is mixed with air is effectively avoided, generation of air holes in a casting part is reduced, the casting effect is improved, and the quality of a final product is more stable and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy profile casting, and in particular to an aluminum alloy profile casting device and a casting method thereof. Background Art

[0002] Aluminum alloy profile casting equipment is equipment and tools used to produce aluminum alloy profiles. Its main function is to melt the aluminum alloy, inject the molten aluminum alloy into the mold through a series of process steps, and form aluminum alloy profiles of the required shape and size after solidification and cooling.

[0003] After searching, the Chinese patent with publication number CN115625314A discloses an aluminum alloy casting mold for improving casting defects, which relates to the technical field of casting molds, including an assembly mold body one and an assembly mold body two, wherein the assembly mold body two is detachably connected to the top of the assembly mold body one, the top of the assembly mold body two is fixedly connected with a pouring nozzle, and a lifting connection frame is fixedly installed at the center of the top of the assembly mold body two. The above scheme adopts the design that the adjacent magnetic poles of the electromagnet and the permanent magnetic circular plate are the same. When the electromagnet is energized, the receiving circular pad and the support column can be urged to move away from each other, and the assembly mold body one is flexibly supported by the stretched elastic member. At the same time, through the design of adding a vibration generator, the assembly mold body one and the casting liquid inside it can be driven to shake, so that the gap of the casting liquid is filled under the action of the shaking force, thereby improving the defects of casting and thus improving the quality of the casting. However, the above scheme still has the following shortcomings when it is actually used: When the aluminum alloy casting mold proposed by the above technical solution is in use, the staff pours molten aluminum into the mold. During this process, the molten aluminum is easily mixed with the air inside the mold. This mixing phenomenon is very unfavorable in the casting process because it will directly affect the quality of the final product. Specifically, when the molten aluminum is poured into the mold, there is often air remaining inside the mold. At the moment when the molten aluminum is poured, the air is easily drawn into the molten aluminum due to the flow of the molten aluminum and the closedness of the mold. Once the molten aluminum is mixed with the air, bubbles will form. These bubbles will be trapped inside the aluminum profile during the solidification process of the molten aluminum to form pores, which will affect the casting effect of the mold. The presence of pores has a significant impact on the performance and appearance of the aluminum profile. First, the pores will reduce the strength and toughness of the aluminum profile, making it more prone to breakage or deformation during use. Secondly, the pores will also affect the surface quality of the aluminum profile, making its surface rough and uneven, and may even crack.

[0004] Therefore, the present application provides an aluminum alloy profile casting device and a casting method thereof to meet the requirements of adaptive pipe raising and lowering when arranging pipe rods. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide an aluminum alloy profile casting device and a casting method thereof to solve the problem that the mold cannot be effectively vented during the casting process.

[0006] Based on the above purpose, the present invention provides an aluminum alloy profile casting equipment, comprising: An outer frame, a feeding barrel is fixed on the outer frame, a pushing block is slidably arranged in the feeding barrel, and the outer surface of the pushing block is in contact with the inner surface of the feeding barrel, and a material injection port is provided on the feeding barrel; a first half mold, the first half mold being slidably disposed inside the outer frame; The second half mold is fixed inside the outer frame, the first half mold and the second half mold are both provided with mold cavities, and the two mold cavities are opposite to each other, and the mold cavity on the second half mold is connected to the feeding cylinder; Two exhaust ports, the two exhaust ports are respectively opened on the first half mold and the second half mold; An air duct is provided on the outer frame and is arranged opposite to the two exhaust ports; Hydraulic cylinder; A driving rod, wherein the driving rod is fixed to the telescopic end of the hydraulic cylinder, and one end of the driving rod away from the hydraulic cylinder is fixedly connected to the pusher block; A fixing frame, the fixing frame comprising a bottom plate and three vertical plates, the three vertical plates are all fixed on the bottom plate; An air extraction component is arranged on a fixing frame.

[0007] Preferably, the air extraction assembly comprises: A rotating shaft, the rotating shaft being rotatably mounted on a fixed frame; The wind tube is placed on one side of the fixed frame, the wind tube is coaxially arranged with the rotating shaft, a through hole matching the rotating shaft is opened on the side of the wind tube, one end of the rotating shaft away from the fixed frame extends to the inside of the wind tube, and the rotating shaft is rotatably installed in the through hole; An air suction member, the air suction member is fixed to one end of the rotating shaft located inside the wind tube; A plurality of air holes, wherein the plurality of air holes are all provided on the air cylinder; An air pipe, one end of which is connected to the wind tube, and the other end of which is connected to the airway; A connecting frame, the connecting frame being fixed on the outer peripheral surface of the driving rod; A first rack, wherein the first rack is fixed to a side surface of the connecting frame; The first gear is fixedly sleeved on the rotating shaft.

[0008] Preferably, the air suction member comprises a disc and a plurality of axial flow blades, the disc is fixed to one end of the rotating shaft located inside the wind tube, the plurality of axial flow blades are fixed to the outer circumferential surface of the disc, and the plurality of axial flow blades are distributed in a circumferential array around the center position of the disc.

[0009] Preferably, an air supply structure is provided on the fixing frame, and the air supply structure includes a driving component, a connecting component and a control component, and the driving component includes: A motor, wherein the motor is mounted on a fixed frame; A reciprocating screw rod, the reciprocating screw rod is rotatably mounted on a fixed frame, and one end of the reciprocating screw rod is fixedly connected to an output shaft of the motor; A guide rod, wherein the guide rod is fixed on a fixing frame; A moving seat, wherein the moving seat is threadedly sleeved on the reciprocating screw rod, and the moving seat is slidably sleeved on the guide rod; A second rack is disposed above the moving seat.

[0010] Preferably, the connection assembly comprises: Two limiting members, both of which are arranged on the top surface of the movable seat, and both of which are connected to the second rack; A shaft rod, the shaft rod being rotatably mounted on the top surface of the moving seat; A threaded rod, wherein the threaded rod is fixed to the top end of the shaft rod, and the threaded rod and the shaft rod are coaxially arranged; A threaded sleeve is threadedly sleeved on the threaded rod, and the threaded sleeve is fixedly connected to the second rack.

[0011] Preferably, the limiting member includes an outer cylinder and an inner rod, the outer cylinder is fixed on the top surface of the movable seat, the inner rod is slidably arranged in the outer cylinder, the top end of the inner rod extends to the outside of the outer cylinder and is fixedly connected to the second rack, and the inner surface of the outer cylinder and the outer surface of the inner rod are in contact with each other.

[0012] Preferably, the control component comprises: A second gear, wherein the second gear is sleeved on the shaft; Four connecting rods, which are arranged in groups of two and are respectively fixed at two ends of the fixing frame; Two connecting plates, the two connecting plates are respectively placed at two ends of the fixing frame, and the two connecting plates are fixedly connected to the fixing frame through two connecting rods; Two third racks, the two third racks are respectively arranged at two ends of the fixing frame, and the teeth of the two third racks are arranged opposite to each other; A one-way bearing is installed on the shaft, and the second gear is connected to the outer ring of the one-way bearing.

[0013] Preferably, an adjusting screw is installed on the outer frame, and the adjusting screw is threadedly connected to the outer frame, one end of the adjusting screw is rotationally connected to the first half mold, and the other end of the adjusting screw is installed with a hand wheel.

[0014] Preferably, a limiting groove is provided on the outer frame, a limiting block is fixed on the first half mold, and the limiting block is slidably arranged in the limiting groove.

[0015] The present invention also provides a method for casting an aluminum alloy profile, using the aluminum alloy profile casting equipment as described above, comprising the following steps: Step 1: The staff pours molten aluminum into the feed barrel through the injection port, starts the hydraulic cylinder, and drives the pusher block to push the molten aluminum into the mold cavities of the first half mold and the second half mold through the drive rod; Step 2: The movement of the driving rod drives the first rack to move and mesh with the first gear, driving the first gear to rotate, and the rotation drives the rotating shaft and the air suction member to perform a vacuum action, and the air in the mold cavity is discharged through the air pipe to avoid the formation of air holes; Step 3: After the aluminum liquid solidifies, the staff rotates the hand wheel to separate the first half mold from the second half mold, starts the motor, and moves the movable seat from the left end to the right end of the fixed frame. The movement of the movable seat drives the second rack to mesh with the first gear, drives the first gear to rotate in the opposite direction, drives the suction piece to perform exhaust action, and cools the casting through the air pipe; Step 4: When the movable seat moves to the right end close to the fixed frame, the second gear meshes with the third rack on the right end of the fixed frame and rotates in the opposite direction, so that the threaded rod moves downward, driving the second rack to move downward, and the air suction member rotates in the opposite direction to exhaust; Step 5: When the moving seat moves to the left end in the opposite direction again, the second gear meshes with the third rack at the left end of the fixed frame, driving the second rack to mesh with the first gear, and the air suction member performs exhaust action again.

[0016] Beneficial effects of the present invention: 1. This aluminum alloy profile casting equipment and casting method effectively avoids the mixing of molten aluminum and air by pushing molten aluminum into the mold cavity and performing the exhaust action at the same time, which helps to reduce the generation of pores inside the casting, improve the casting effect, and make the quality of the final product more stable and reliable. By quickly and thoroughly removing the air in the mold cavity, the formation of pores can be effectively prevented, which is very important for aluminum alloy casting, because pores are one of the common casting defects, which will affect the strength and appearance quality of the casting. In addition, the simultaneous addition of molten aluminum and the exhaust action are realized by the mechanical structure. The mechanical structure is usually more stable and reliable than electronic devices and is not affected by power supply or circuit failure. This design simplifies the system, reduces the possibility of failure, and improves the stability and reliability of the production equipment.

[0017] 2. This type of aluminum alloy profile casting equipment and casting method, by utilizing the cooling function, the staff can cool and solidify the casting immediately after the aluminum liquid solidifies, without waiting for natural cooling, which can significantly improve the casting efficiency of the casting mold and shorten the production cycle. Compared with waiting for natural cooling, using gas to cool the casting can reduce the temperature of the casting more quickly and concentratedly, which can reduce energy consumption and reduce energy costs and environmental impacts in the production process.

[0018] 3. In this type of aluminum alloy profile casting equipment and casting method, the air suction part can always rotate in one direction, which can indeed ensure the cooling effect of the gas on the casting. If the air suction part continuously rotates back and forth, it will be affected by inertia and cannot generate sufficient airflow, thereby reducing the cooling effect. Therefore, this design ensures that the air suction part can continuously and effectively rotate in one direction to provide a stable gas supply. The unidirectional rotation design of the air suction part can ensure a stable and continuous gas flow direction, effectively improving the cooling effect on the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the cutaway structure of the outer frame; Figure 3 for Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the exploded structure of the outer frame, hydraulic cylinder, air extraction assembly, drive assembly and connection assembly; Figure 5 It is a schematic diagram of the structure of the drive component, the connection component and the control component; Figure 6 for Figure 5 The enlarged structural diagram at B in the middle; Figure 7 for Figure 5 The enlarged structural diagram at C in the middle; Figure 8 is a structural schematic diagram of the outer frame; Fig. 9 It is a schematic diagram of the exploded structure of the third rack, the second gear, the one-way bearing and the shaft; Fig.10It is a schematic diagram of the planar structure of the control component.

[0021] The markings in the figure are: 1. Outer frame; 2. First half mold; 3. Second half mold; 4. Exhaust port; 5. Airway; 6. Hydraulic cylinder; 7. Driving rod; 8. Fixed frame; 91. Rotating shaft; 92. Air cylinder; 93. Air suction piece; 94. Air hole; 95. Air pipe; 96. Connecting frame; 97. First rack; 98. First gear; 101. Motor; 102. Reciprocating screw rod; 103. Guide rod; 104. Moving seat; 105. Second rack; 111. Outer cylinder; 112. Inner rod; 113. Shaft rod; 114. Threaded rod; 115. Threaded sleeve; 121. Second gear; 122. Connecting rod; 123. Connecting plate; 124. Third rack; 125. One-way bearing; 131. Adjusting screw; 132. Hand wheel. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0023] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] like Figures 1 to 10As shown, an aluminum alloy profile casting device comprises an outer frame 1; a first half mold 2, the first half mold 2 is slidably arranged inside the outer frame 1, a limiting groove is provided on the outer frame 1, a limiting block is fixed on the first half mold 2, the limiting block is slidably arranged in the limiting groove, an adjusting screw 131 is installed on the outer frame 1, and the adjusting screw 131 is threadedly connected to the outer frame 1, one end of the adjusting screw 131 is rotatably connected to the first half mold 2, and a hand wheel 132 is installed on the other end of the adjusting screw 131. The staff first rotates the hand wheel 132, and uses the hand wheel 132 to drive the adjusting screw 131 to rotate, and the adjusting screw 131 rotates When the outer frame 1 is opened, the first mold half 2 and the second mold half 3 can move, and drive the first mold half 2 to move, so that the first mold half 2 and the second mold half 3 are separated from each other; the second mold half 3, the second mold half 3 is fixed inside the outer frame 1, and the first mold half 2 and the second mold half 3 are both provided with mold cavities, and the two mold cavities are opposite to each other; two exhaust ports 4, the two exhaust ports 4 are respectively provided on the first mold half 2 and the second mold half 3; the airway 5, the airway 5 is provided on the outer frame 1, and the airway 5 is provided opposite to the two exhaust ports 4; the hydraulic cylinder 6; the driving rod 7, the driving rod 7 is fixed to the telescopic end of the hydraulic cylinder 6; the fixing frame 8, the fixing frame 8 includes a bottom plate and three vertical plates, and the three vertical plates are all fixed to the bottom plate; In the initial state, the first half mold 2 and the second half mold 3 are in a mold closing state. At this time, the two exhaust ports 4 on the first half mold 2 and the second half mold 3 are aligned. A feed barrel is provided on the outer frame 1. A push block is slidably provided inside the feed barrel, and the outer surface of the push block is in contact with the inner surface of the feed barrel. The push block is fixedly connected to the end of the drive rod 7 away from the hydraulic cylinder 6. In addition, an injection port is provided on the feed barrel. When the casting operation is performed, the staff pours the molten aluminum into the inside of the feed barrel through the injection port, and then starts the hydraulic cylinder 6. When the hydraulic cylinder 6 is running, it can drive the drive rod 7 to move, so that the drive rod 7 drives the push block to move. During the movement, the push block can push the molten aluminum in the feed barrel into the mold cavity of the first half mold 2 and the second half mold 3. like Figure 1 and Figure 4As shown, the casting device also includes an air extraction component, which is arranged on the fixed frame 8, and the air extraction component includes: a rotating shaft 91, which is rotatably mounted on the fixed frame 8; a wind tube 92, which is placed on one side of the fixed frame 8, and is coaxially arranged between the wind tube 92 and the rotating shaft 91, and a through hole adapted to the rotating shaft 91 is opened on the side of the wind tube 92, and the end of the rotating shaft 91 away from the fixed frame 8 extends to the inside of the wind tube 92, and the rotating shaft 91 is rotatably mounted in the through hole; an air suction member 93, which is fixed to one end of the rotating shaft 91 located inside the wind tube 92, and the air suction member 93 includes a disc and a plurality of axial flow blades The disc is fixed to one end of the rotating shaft 91 located inside the wind tube 92, and a plurality of axial flow blades are fixed to the outer peripheral surface of the disc, and the plurality of axial flow blades are distributed in a circumferential array around the center position of the disc; a plurality of air holes 94, and the plurality of air holes 94 are opened on the wind tube 92; an air pipe 95, one end of the air pipe 95 is connected to the wind tube 92, and the other end of the air pipe 95 is connected to the air duct 5; a connecting frame 96, and the connecting frame 96 is fixed to the outer peripheral surface of the driving rod 7; a first rack 97, and the first rack 97 is fixed to the side of the connecting frame 96; a first gear 98, and the first gear 98 is fixedly sleeved on the rotating shaft 91; When the driving rod 7 moves, it can drive the first rack 97 to move through the connecting frame 96. During the movement, the first rack 97 will mesh with the first gear 98 and drive the first gear 98 to rotate. When the first gear 98 rotates, it can drive the rotating shaft 91 to rotate, and the suction member 93 will also rotate accordingly. The suction member 93 includes a disc and a plurality of axial flow blades. The disc is fixed to one end of the rotating shaft 91 located inside the wind tube 92. The plurality of axial flow blades are fixed to the outer peripheral surface of the disc, and the plurality of axial flow blades are distributed in a circumferential array around the center position of the disc, so The suction member 93 can perform a vacuum action when rotating, and extract the air in the mold cavities of the first half mold 2 and the second half mold 3 through the air pipe 95. In summary, in the process of adding molten aluminum to the mold cavity, the vacuum action will be performed synchronously. The design of the vacuum action can effectively discharge the air in the mold cavity, avoid the mixing of molten aluminum and air, and thus prevent the existence of bubbles inside the casting, so as to ensure the casting effect of the casting mold. It is worth mentioning that when the pusher block moves to the extreme position inside the feed barrel, the first rack 97 will separate from the first gear 98; like Figure 5-Figure 10As shown, an air supply structure is provided on the fixed frame 8, and the air supply structure includes a driving component, a connecting component and a control component. The driving component includes: a motor 101, which is installed on the fixed frame 8; a reciprocating screw rod 102, which is rotatably installed on the fixed frame 8, and one end of the reciprocating screw rod 102 is fixedly connected to the output shaft of the motor 101; a guide rod 103, which is fixed on the fixed frame 8; a moving seat 104, which is threadedly sleeved on the reciprocating screw rod 102, and the moving seat 104 is slidably sleeved on the guide rod 103; a second rack 105, which is placed above the moving seat 104, and the connecting component includes: two limit members, which are both arranged on the top surface of the moving seat 104, and the two limit members The positioning parts are all connected to the second rack 105, and the limiting parts include an outer cylinder 111 and an inner rod 112. The outer cylinder 111 is fixed on the top surface of the movable seat 104, and the inner rod 112 is slidably arranged in the outer cylinder 111. The top end of the inner rod 112 extends to the outside of the outer cylinder 111 and is fixedly connected to the second rack 105. The inner surface of the outer cylinder 111 and the outer surface of the inner rod 112 fit each other; the shaft rod 113, the shaft rod 113 is rotatably mounted on the top surface of the movable seat 104; the threaded rod 114, the threaded rod 114 is fixed on the top end of the shaft rod 113, and the threaded rod 114 and the shaft rod 113 are coaxially arranged; the threaded sleeve 115, the threaded sleeve 115 is threadedly sleeved on the threaded rod 114, and the threaded sleeve 115 is fixedly connected to the second rack 105; like Figures 5 to 8 As shown, the control assembly includes: a second gear 121, which is sleeved on the shaft 113; four connecting rods 122, which are arranged in pairs and fixed to the two ends of the fixing frame 8; two connecting plates 123, which are respectively placed at the two ends of the fixing frame 8, and the two connecting plates 123 are fixedly connected to the fixing frame 8 through the two connecting rods 122; two third racks 124, which are respectively arranged at the two ends of the fixing frame 8, and the teeth of the two third racks 124 are arranged opposite to each other; a one-way bearing 125, which is installed on the shaft 113, and the second gear 121 is connected to the outer ring of the one-way bearing 125; The aluminum alloy profile casting equipment proposed in the present invention also has a cooling function. After the aluminum liquid is solidified, the staff can use the cooling function to cool and solidify the casting without waiting for the natural cooling of the casting, which can improve the casting efficiency of the casting mold. Specifically, the staff first rotates the hand wheel 132, and uses the hand wheel 132 to drive the adjusting screw 131 to rotate. When the adjusting screw 131 rotates, it can drive the first half mold 2 to move, so that the first half mold 2 and the second half mold 3 are separated from each other. Then the staff starts the motor 101. In the initial state, the moving seat 104 is located at the left end of the fixed frame 8. When the motor 101 is running, it drives the reciprocating screw 102 to rotate. Under the limiting action, the reciprocating screw rod 102 can drive the moving seat 104 to move when rotating, so that the moving seat 104 moves from the left end of the fixed frame 8 to the right end of the fixed frame 8. When the moving seat 104 moves, it can drive the second rack 105 to move through the connecting component. In this process, the second rack 105 will mesh with the first gear 98 and drive the first gear 98 to rotate in the opposite direction. The first gear 98 can drive the suction member 93 to rotate in the opposite direction through the rotating shaft 91. When the suction member 93 rotates in the opposite direction, it can perform exhaust action and discharge the gas into the mold cavity of the first half mold 2 and the second half mold 3 through the air pipe 95, so as to cool the casting with gas and accelerate the solidification speed of the casting. When the movable seat 104 moves to a position close to the right end of the fixing frame 8, the second gear 121 will mesh with the third rack 124 at the right end of the fixing frame 8 and rotate under the action of the third rack 124. When the second gear 121 rotates, it can drive the shaft rod 113 to rotate, and the threaded rod 114 will also rotate accordingly. Under the limiting action of the two limiting members, when the threaded rod 114 rotates, it can drive the threaded sleeve 115 to move downward, which makes the second rack 105 also move downward. When the movable seat 104 moves to the right end of the fixed frame 8, the movable seat 104 will move in the opposite direction and move toward the left end of the fixed frame 8. In this process, the second gear 121 will mesh with the third rack 124 at the right end of the fixed frame 8 again. Since the second gear 121 is meshed with the shaft 113 through the one-way bearing 125, when the movable seat 104 moves toward the right end of the fixed frame 8, the locking direction of the one-way bearing 125 is the same as the rotation direction of the shaft 113. At this time, the shaft 113 is The threaded rod 114 can be driven to rotate through the one-way bearing 125. When the movable seat 104 moves toward the left end of the fixed frame 8, the shaft 113 will rotate in the opposite direction under the action of the second gear 121 and the corresponding third rack 124. At this time, the rotation direction of the shaft 113 is opposite to the locking direction of the one-way bearing 125. Therefore, the second gear 121 cannot drive the shaft 113 to rotate, and the threaded rod 114 will not rotate. Therefore, when the movable seat 104 moves toward the left end of the fixed frame 8, the second rack 105 will not mesh with the first gear 98, and the rotating shaft 91 and the suction member 93 will not rotate. When the movable seat 104 moves to a position close to the left end of the fixed frame 8, the second gear 121 will mesh with the third rack 124 at the left end of the fixed frame 8 and rotate in the opposite direction under the action of the third rack 124, which makes the threaded rod 114 rotate in the opposite direction. When the threaded rod 114 rotates in the opposite direction, it will drive the threaded sleeve 115 to move upward, and the second rack 105 will also move upward; When the movable seat 104 moves to the left end of the fixed frame 8, the movable seat 104 will move in the opposite direction again and move toward the right end of the fixed frame 8. In this process, the second gear 121 will mesh with the third rack 124 at the left end of the fixed frame 8 again. Similarly, under the action of the one-way bearing 125, the threaded rod 114 will not rotate, which enables the second rack 105 to mesh with the first gear 98 again during the process of moving toward the right end of the fixed frame 8, which enables the suction member 93 to perform the exhaust action again. Based on the above process, under the action of the one-way bearing 125, when the movable seat 104 moves toward the right end of the fixed frame 8, the second rack 105 is in a state where it can mesh with the first gear 98. When the movable seat 104 moves toward the left end of the fixed frame 8, the second rack 105 is in a state where it will not mesh with the first gear 98. That is, when the movable seat 104 moves toward the right end of the fixed frame 8, the rotating shaft 91 will drive the suction member 93 to perform the exhaust action. 04 When moving toward the left end of the fixed frame 8, the rotating shaft 91 and the suction member 93 will not rotate. Therefore, when the motor 101 is running, the suction member 93 will periodically exhaust gas, which allows the gas to continuously enter the mold cavity of the first half mold 2 and the second half mold 3, so that the gas continuously cools the casting. The effect of this special design is that the suction member 93 can always rotate in one direction, which can ensure the air supply effect of the suction member 93 to the air pipe 95. Because if the suction member 93 continuously rotates back and forth, the suction member 93 needs to overcome the inertia generated during the rotation process. In this case, the suction member 93 cannot generate sufficient airflow. Therefore, the unidirectional rotation of the suction member 93 can ensure the cooling effect of the gas on the casting. It is worth mentioning that when the second gear 105 moves back and forth, the first rack 97 will be in a state of separation from the first gear 98, so that the first rack 97 can be prevented from hindering the rotation of the first gear 98.

[0025] The present invention also discloses a casting method of an aluminum alloy profile, using the above-mentioned aluminum alloy profile casting equipment, comprising the following steps: Step 1: The staff pours molten aluminum into the feeding barrel through the injection port, starts the hydraulic cylinder 6, and drives the pusher block to push the molten aluminum into the mold cavity of the first half mold 2 and the second half mold 3 through the drive rod 7; Step 2: The movement of the driving rod 7 drives the first rack 97 to move, mesh with the first gear 98, and drive the first gear 98 to rotate. The rotation drives the rotating shaft 91 and the air suction member 93 to perform a vacuum action, and the air in the mold cavity is discharged through the air pipe 95 to avoid the formation of air holes; Step 3: After the aluminum liquid solidifies, the staff rotates the hand wheel 132 to separate the first half mold 2 and the second half mold 3 from each other, and starts the motor 101 to move the movable seat 104 from the left end to the right end of the fixed frame 8. The movement of the movable seat 104 drives the second rack 105 to mesh with the first gear 98, driving the first gear 98 to rotate in the opposite direction, driving the suction member 93 to perform exhaust action, and cooling the casting through the air pipe 95; Step 4: When the movable seat 104 moves to the right end close to the fixed frame 8, the second gear 121 meshes with the third rack 124 at the right end of the fixed frame 8 and rotates in the opposite direction, so that the threaded rod 114 moves downward, driving the second rack 105 to move downward, and the air suction member 93 rotates in the opposite direction to exhaust; Step 5: When the movable seat 104 moves to the left end again in the reverse direction, the second gear 121 meshes with the third rack 124 at the left end of the fixed frame 8, driving the second rack 105 to mesh with the first gear 98, and the air suction member 93 performs exhaust action again.

[0026] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0027] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An aluminum alloy profile casting equipment, characterized in that: include: An outer frame (1), a feeding barrel being fixed on the outer frame (1), a pushing block being slidably arranged in the feeding barrel, the outer surface of the pushing block being in contact with the inner surface of the feeding barrel, and a material injection port being provided on the feeding barrel; A first half mold (2), the first half mold (2) being slidably arranged inside the outer frame (1); a second half mold (3), the second half mold (3) being fixed inside the outer frame (1), the first half mold (2) and the second half mold (3) both having mold cavities, the two mold cavities facing each other, the mold cavity on the second half mold (3) being connected to the feed cylinder; Two exhaust ports (4), the two exhaust ports (4) being respectively disposed on the first half mold (2) and the second half mold (3); An air duct (5), wherein the air duct (5) is opened on the outer frame (1), and the air duct (5) is arranged opposite to the two exhaust ports (4); Hydraulic cylinder (6); A driving rod (7), wherein the driving rod (7) is fixed to the telescopic end of the hydraulic cylinder (6), and an end of the driving rod (7) away from the hydraulic cylinder (6) is fixedly connected to the pusher block; A fixing frame (8), the fixing frame (8) comprising a bottom plate and three vertical plates, the three vertical plates being fixed on the bottom plate; An air extraction component, wherein the air extraction component is arranged on a fixing frame (8).

2. The aluminum alloy profile casting equipment according to claim 1, characterized in that: The air extraction component comprises: A rotating shaft (91), the rotating shaft (91) being rotatably mounted on the fixing frame (8); A wind tube (92), the wind tube (92) being disposed on one side of the fixing frame (8), the wind tube (92) being coaxially arranged with the rotating shaft (91), a through hole matching the rotating shaft (91) being provided on the side of the wind tube (92), one end of the rotating shaft (91) away from the fixing frame (8) extending to the interior of the wind tube (92), and the rotating shaft (91) being rotatably mounted in the through hole; An air suction member (93), the air suction member (93) being fixed to one end of the rotating shaft (91) located inside the air cylinder (92); A plurality of air holes (94), wherein the plurality of air holes (94) are all provided on the air cylinder (92); An air pipe (95), one end of the air pipe (95) being connected to the air cylinder (92), and the other end of the air pipe (95) being connected to the airway (5); A connecting frame (96), the connecting frame (96) being fixed on the outer peripheral surface of the driving rod (7); A first rack (97), wherein the first rack (97) is fixed to a side surface of the connecting frame (96); A first gear (98), the first gear (98) is fixedly sleeved on the rotating shaft (91).

3. The aluminum alloy profile casting equipment according to claim 2, characterized in that: The air suction member (93) comprises a disc and a plurality of axial flow blades. The disc is fixed to one end of the rotating shaft (91) located inside the wind tube (92). The plurality of axial flow blades are fixed to the outer peripheral surface of the disc, and the plurality of axial flow blades are distributed in a circumferential array around the center position of the disc.

4. The aluminum alloy profile casting equipment according to claim 1, characterized in that: The fixing frame (8) is provided with an air supply structure, the air supply structure comprising a driving component, a connecting component and a control component, the driving component comprising: A motor (101), wherein the motor (101) is mounted on a fixing frame (8); A reciprocating screw rod (102), the reciprocating screw rod (102) being rotatably mounted on a fixed frame (8), and one end of the reciprocating screw rod (102) being fixedly connected to an output shaft of the motor (101); A guide rod (103), wherein the guide rod (103) is fixed on a fixing frame (8); A movable seat (104), wherein the movable seat (104) is threadedly sleeved on the reciprocating screw rod (102), and the movable seat (104) is slidably sleeved on the guide rod (103); A second rack (105), wherein the second rack (105) is placed above the movable seat (104).

5. The aluminum alloy profile casting equipment according to claim 4, characterized in that: The connection component comprises: Two limiting members, both of which are arranged on the top surface of the movable seat (104), and both of which are connected to the second rack (105); A shaft rod (113), the shaft rod (113) being rotatably mounted on the top surface of the movable seat (104); A threaded rod (114), wherein the threaded rod (114) is fixed to the top end of the shaft rod (113), and the threaded rod (114) and the shaft rod (113) are coaxially arranged; A threaded sleeve (115), wherein the threaded sleeve (115) is threadedly sleeved on the threaded rod (114), and the threaded sleeve (115) is fixedly connected to the second rack (105).

6. The aluminum alloy profile casting equipment according to claim 5, characterized in that: The limiting member comprises an outer cylinder (111) and an inner rod (112); the outer cylinder (111) is fixed on the top surface of the movable seat (104); the inner rod (112) is slidably arranged in the outer cylinder (111); the top end of the inner rod (112) extends to the outside of the outer cylinder (111) and is fixedly connected to the second rack (105); the inner surface of the outer cylinder (111) and the outer surface of the inner rod (112) are in contact with each other.

7. The aluminum alloy profile casting equipment according to claim 6, characterized in that: The control component comprises: A second gear (121), the second gear (121) being sleeved on the shaft (113); Four connecting rods (122), wherein the four connecting rods (122) are arranged in groups of two and are respectively fixed at two ends of the fixing frame (8); Two connecting plates (123), the two connecting plates (123) being respectively placed at two ends of the fixing frame (8), and the two connecting plates (123) being fixedly connected to the fixing frame (8) via two connecting rods (122); Two third racks (124), the two third racks (124) being respectively arranged at two ends of the fixing frame (8), and the teeth of the two third racks (124) being arranged facing each other; A one-way bearing (125), wherein the one-way bearing (125) is mounted on the shaft (113), and the second gear (121) is connected to an outer ring of the one-way bearing (125).

8. The aluminum alloy profile casting equipment according to claim 1, characterized in that: An adjusting screw (131) is mounted on the outer frame (1), and the adjusting screw (131) is threadedly connected to the outer frame (1), one end of the adjusting screw (131) is rotatably connected to the first half mold (2), and a hand wheel (132) is mounted on the other end of the adjusting screw (131).

9. The aluminum alloy profile casting equipment according to claim 8, characterized in that: The outer frame (1) is provided with a limiting groove, the first half mold (2) is fixed with a limiting block, and the limiting block is slidably arranged in the limiting groove.

10. A method for casting an aluminum alloy profile, using an aluminum alloy profile casting device as described in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: The staff pours molten aluminum into the feed barrel through the injection port, starts the hydraulic cylinder (6), and drives the pusher block to push the molten aluminum into the mold cavities of the first half mold (2) and the second half mold (3) through the drive rod (7); Step 2: The movement of the driving rod (7) drives the first rack (97) to move, mesh with the first gear (98), and drive the first gear (98) to rotate. The rotation drives the rotating shaft (91) and the suction member (93) to perform a suction action, and the air in the mold cavity is discharged through the air pipe (95) to avoid the formation of air holes; Step 3: After the aluminum liquid solidifies, the staff rotates the hand wheel (132) to separate the first half mold (2) and the second half mold (3) from each other, and starts the motor (101) to move the movable seat (104) from the left end to the right end of the fixed frame (8). The movement of the movable seat (104) drives the second rack (105) to mesh with the first gear (98), driving the first gear (98) to rotate in the opposite direction, driving the suction member (93) to perform exhaust action, and cooling the casting through the air pipe (95); Step 4: When the movable seat (104) moves to the right end close to the fixed frame (8), the second gear (121) meshes with the third rack (124) at the right end of the fixed frame (8) and rotates in the opposite direction, so that the threaded rod (114) moves downward, driving the second rack (105) to move downward, and the suction member (93) rotates in the opposite direction to exhaust air; Step 5: When the movable seat (104) moves in the opposite direction to the left end again, the second gear (121) meshes with the third rack (124) at the left end of the fixed frame (8), driving the second rack (105) to mesh with the first gear (98), and the air suction member (93) performs exhaust action again.

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