Die for aluminum bar casting

By designing a leveling and cleaning mechanism for the mold used in aluminum rod casting, the problems of insufficient aluminum liquid filling and uneven solidification during the aluminum rod casting process were solved. This achieved leveling of the top of the aluminum rod and removal of impurities, reducing production costs and improving product consistency.

CN120901230APending Publication Date: 2025-11-07ANHUI XINBO PHOTOVOLTAIC MATERIALS CO LTD
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Patent Information

Application Number
CN202510962328.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

During the aluminum rod casting process, insufficient aluminum liquid filling or uneven solidification can lead to defects such as unevenness, burrs, or gaps at the top of the aluminum rod, increasing secondary processing steps, raising production costs, and reducing product consistency.

Method used

A mold for casting aluminum rods was designed, comprising a leveling mechanism, a cleaning mechanism, and an opening and closing mechanism. The leveling mechanism is driven by a driving component to level the surface of the molten aluminum, the cleaning mechanism removes impurities, and the opening and closing mechanism facilitates the injection of molten aluminum and the removal of the aluminum rod. Combined with a heating component, it prevents uneven solidification.

Benefits of technology

This effectively avoids defects at the tip of aluminum bars, reduces secondary processing, lowers production costs, improves production efficiency and product consistency, and ensures the quality of aluminum bars.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of casting molds, and discloses an aluminum bar casting mold which comprises a mold body, an aluminum bar cavity bush, a driving part, an upper mold, a receiving box, a cleaning mechanism, an opening and closing mechanism and a leveling mechanism. The aluminum bar cavity lining is arranged in a die cavity of the die body, the aluminum bar cavity lining is fixedly sleeved with the bearing box, and the upper die is arranged on the bearing box and driven by the opening and closing mechanism to be opened and closed; the leveling mechanism is arranged on the receiving box in a sliding manner and is driven by the driving part so as to level the liquid level of molten aluminum in the aluminum bar cavity bushing; the opening and closing mechanism is arranged on the leveling mechanism so as to clean the end of the aluminum bar cavity bush when the leveling mechanism acts on the interior of the aluminum bar cavity bush. The leveling mechanism is arranged to level molten aluminum under the driving of the driving part, so that secondary processing procedures are reduced, and the cost is reduced and the efficiency is improved; all parts of the cleaning mechanism cooperatively clean impurities, and the cleaning effect is guaranteed; the heating piece in the pressing plate prevents the end of the molten aluminum from being solidified too fast, and the aluminum bar casting quality is jointly guaranteed.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of casting mold, more particularly, it is a kind of aluminum bar casting mold. BACKGROUND

[0002] Aluminum bar is a kind of aluminum product, and the melting of aluminum bar includes melting, purification, impurity removal, degassing, slag removal and casting process. The molten aluminum obtained by smelting is transferred into the cavity of the aluminum bar casting mold, and then processed into aluminum bars of the required shape. Then the aluminum bars are cut into the required length, and finally extruded into the required profile.

[0003] In the actual production process of aluminum bar casting, after the molten aluminum is poured into the mold, due to the molten aluminum is usually added in the middle of the corresponding aluminum cavity, the amount of molten aluminum added at the end is limited, accompanied by temperature change and contact with air, resulting in unevenness, burrs or notches on the top end of the aluminum bar after solidification due to insufficient filling of molten aluminum or uneven solidification shrinkage. Since the end face quality cannot directly meet the process requirements, subsequent secondary processing such as cutting, milling or polishing must be carried out by manual or mechanical means, which not only increases the additional working hours and material loss, but also significantly increases the production cost, reduces the production efficiency and product consistency, and hinders the optimization of large-scale manufacturing process. SUMMARY

[0004] The present application provides an aluminum bar casting mold to solve the technical problem of uneven end in the related art aluminum bar casting mold, which leads to subsequent increased processing and reduces product consistency.

[0005] The present application provides an aluminum bar casting mold, which comprises a mold body, an aluminum bar cavity bushing, a driving member, an upper mold, a receiving box, a cleaning mechanism, an opening and closing mechanism, and a leveling mechanism. The aluminum bar cavity bushing is arranged in the mold cavity of the mold body, the receiving box is fixedly sleeved on the aluminum bar cavity bushing, and the upper mold is arranged on the receiving box and driven by the opening and closing mechanism to open and close. The leveling mechanism is slidably arranged on the receiving box and driven by the driving member to level the molten aluminum liquid surface in the aluminum bar cavity bushing. The opening and closing mechanism is arranged on the leveling mechanism to clean the end of the aluminum bar cavity bushing when the leveling mechanism acts on the aluminum bar cavity bushing.

[0006] As a further optimization scheme of the present application, the driving member comprises a driving motor, a threaded rod, a moving block and a moving plate, a sliding port is formed in the receiving box, the moving plate is slidably arranged in the sliding port, the driving motor is mounted on the mold body, and the driving shaft of the driving motor is connected with the threaded rod, one end of the threaded rod is threaded through the moving block, the moving block is slidably connected with the mold body and fixedly connected with one end of the moving plate.

[0007] As a further optimization scheme of the present application, the other end of the moving plate is fixedly connected with a guide block, a guide rod is slidingly sleeved on the guide block, and the guide rod is fixedly connected with the receiving box through a connecting block.

[0008] As a further optimization scheme of the present application, the cleaning mechanism comprises a rotating pipe, a ball screw, a pressing plate, a rotating ring, a driving rod and a vertical actuator, one end of the rotating pipe ball screw is fixedly connected with the moving plate, a sliding table is arranged on the ball screw, the rotating ring is rotatably sleeved in the sliding table and rotatably connected with one end of the driving rod, the other end of the driving rod slidingly penetrates through the moving plate and is driven by the vertical actuator, the rotating pipe is fixedly sleeved on the sliding table and fixedly connected with the pressing plate.

[0009] As a further optimization scheme of the present application, the vertical actuator comprises a linear actuator installed on the moving plate, and a pressing plate fixedly connected with the driving rod is fixedly connected with the driving end of the linear actuator.

[0010] As a further optimization scheme of the present application, the opening and closing mechanism comprises a mounting seat and a hydraulic cylinder, the mounting seat is installed on the mold body and rotatably connected with the hydraulic cylinder through a rotating shaft, and the driving end of the hydraulic cylinder is rotatably connected with the upper die through a rotating shaft.

[0011] As a further optimization scheme of the present application, the flattening mechanism comprises a sleeve, a pressing spring, a moving rod and a scraping blade, the sleeve is fixedly connected with the rotating pipe through a suspension rod, one end of the moving rod slidingly extends into the inside of the sleeve and is connected with the inner wall of the sleeve through the pressing spring, the other end of the moving rod is fixedly connected with the scraping blade, and the scraping blade is used for scraping the aluminum liquid and impurities on the top end of the aluminum rod cavity liner.

[0012] As a further optimization scheme of the present application, the middle part of the top surface of the pressing plate is outwardly inclined to guide the aluminum and waste scraps scattered thereon.

[0013] As a further optimization scheme of the present application, the cross section of the scraping blade is V-shaped.

[0014] As a further optimization scheme of the present application, the inside of the pressing plate is provided with a heating element, and the heating element is arranged in the pressing plate in a meandering manner.

[0015] The present application has the following advantages: By arranging the flattening mechanism, the aluminum liquid in the aluminum rod cavity liner is flattened under the driving of the driving member, effectively avoiding the defects such as unevenness, burr or gap on the top end of the aluminum rod caused by insufficient filling of the aluminum liquid or uneven solidification shrinkage, reducing the subsequent secondary processing procedures such as cutting, milling or polishing, reducing the working hours and material loss, and thus reducing the production cost, improving the production efficiency and product consistency.

[0016] The cleaning mechanism's rotating tube, ball screw, pressing plate and other components cooperate with each other, under the driving of the moving plate, the vertical actuator drives the moving rod to move, so that the pressing plate rotates to arrange the aluminum liquid level of the aluminum bar cavity lining; the top surface of the pressing plate is designed to be inclined to guide the scattered aluminum and waste scraps, so as to avoid the accumulation affecting the cleaning and casting; the scraping piece is V-shaped and tightly contacts the top end of the aluminum bar cavity lining under the action of the pressing spring, and rotates to scrape the scattered aluminum liquid and impurities, so as to ensure the quality of the aluminum bar.

[0017] The pressing plate is internally provided with a circuitous heating element, the heated pressing plate can prevent the aluminum liquid from being rapidly solidified at the end portion, avoid the defects of the aluminum bar end portion caused by temperature difference, and make the aluminum liquid level in the aluminum bar cavity lining flat, so as to further ensure the casting quality of the aluminum bar. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure schematic view of the mold for aluminum bar casting is provided.

[0019] Figure 2 An internal structure schematic view of the receiving box in the mold for aluminum bar casting is provided.

[0020] Figure 3 Another perspective structure schematic view of the receiving box in the mold for aluminum bar casting is provided.

[0021] Figure 4 A partial structure schematic view of the mold for aluminum bar casting is provided.

[0022] Figure 5 A structure schematic view of the pressing plate in the mold for aluminum bar casting is provided.

[0023] Figure 6 A side view structure schematic view of the leveling mechanism and the cleaning mechanism in the mold for aluminum bar casting is provided.

[0024] Figure 7 A structure schematic view of the mold for aluminum bar casting is provided.

[0025] IN THE DRAWINGS: 1, mold body; 2, aluminum bar cavity lining; 3, driving part; 31, driving motor; 32, threaded rod; 33, moving block; 34, moving plate; 35, guide block; 36, guide rod; 37, connecting block; 4, upper mold; 5, receiving box; 51, sliding port; 6, cleaning mechanism; 61, rotating tube; 62, ball screw; 63, pressing plate; 64, rotating ring; 65, moving rod; 66, linear actuator; 67, pressing plate; 7. Opening and closing mechanism; 71. Mounting base; 72. Hydraulic cylinder; 8. Leveling mechanism; 81. Sleeve; 82. Compression spring; 83. Moving rod; 84. Scraper; 85. Suspension rod. Detailed Implementation

[0026] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0027] like Figures 1 to 7 As shown in the embodiment of the present invention, a mold for casting aluminum rods includes a mold body 1, an aluminum rod cavity bushing 2, a driving component 3, an upper mold 4, a receiving box 5, a cleaning mechanism 6, an opening and closing mechanism 7, and a leveling mechanism 8. The aluminum rod cavity bushing 2 is set inside the mold cavity of the mold body 1. The receiving box 5 is fixedly fitted on the aluminum rod cavity bushing 2. The upper mold 4 is set on the receiving box 5 (rotatably connected to the receiving box 5 via a hinge) and is driven to open and close by the opening and closing mechanism 7. The leveling mechanism 8 is slidably mounted on the receiving box 5 and driven by the driving component 3 to level the surface of the molten aluminum in the aluminum rod cavity bushing 2. The opening and closing mechanism 7 is set on the leveling mechanism 8 to clean the end of the aluminum rod cavity bushing 2 when the leveling mechanism 8 acts inside the aluminum rod cavity bushing 2.

[0028] The aluminum rod cavity bushing 2 is used to form the shape of the aluminum rod, ensuring that the molten aluminum solidifies and forms within it. It is set inside the mold cavity of the mold body 1 to ensure structural stability. The receiving box 5 is fixedly fitted onto the aluminum rod cavity bushing 2, which not only serves to receive the overflowing molten aluminum, but also provides an installation platform for components such as the upper mold 4 and the leveling mechanism 8. The upper mold 4 is driven by the opening and closing mechanism 7, and the opening and closing action facilitates the removal of the aluminum rod. Driven by the driving component 3, the leveling mechanism 8 can slide on the receiving box 5, which levels the molten aluminum inside the aluminum rod cavity bushing 2, avoiding defects such as unevenness, burrs, or gaps at the top of the aluminum rod due to insufficient filling of molten aluminum or uneven solidification shrinkage. This improves the end face quality of the aluminum rod, reduces subsequent secondary processing steps, lowers production costs, and improves production efficiency and product consistency. The opening and closing mechanism 7 is linked with the leveling mechanism 8. When the leveling mechanism 8 is working, it cleans the end of the aluminum rod cavity bushing 2 to remove residual aluminum chips and impurities, further ensuring the quality of the aluminum rod.

[0029] In an alternative embodiment, the driving member 3 comprises a driving motor 31, a threaded rod 32, a moving block 33 and a moving plate 34, the receiving box 5 is provided with a sliding port 51, the moving plate 34 is slidingly arranged in the sliding port 51, the driving motor 31 is mounted on the mold main body 1, and the driving shaft of the driving motor 31 is connected with the threaded rod 32, one end of the threaded rod 32 is screwed through the moving block 33, the moving block 33 is slidingly connected with the mold main body 1, and one end of the moving block 33 is fixedly connected with the moving plate 34.

[0030] The driving motor 31 serves as a power source, and after starting, the driving shaft drives the threaded rod 32 to rotate. Since the threaded rod 32 is threadedly connected with the moving block 33, and the moving block 33 is slidingly connected with the mold main body 1, when the threaded rod 32 rotates, the moving block 33 will move along the axial direction of the threaded rod 32, the moving block 33 is fixedly connected with the moving plate 34, thereby driving the moving plate 34 to slide in the sliding port 51 of the receiving box 5. This structure can accurately control the movement of the moving plate 34, thereby providing stable power for the cleaning mechanism 6 and the flattening mechanism 8 connected to the moving plate 34, ensuring that they can complete the corresponding cleaning and flattening work, and ensuring the stability and accuracy of the aluminum bar casting process.

[0031] In an alternative embodiment, the other end of the moving plate 34 is fixedly connected with a guide block 35, the guide block 35 is slidingly sleeved with a guide rod 36, and the guide rod 36 is fixedly connected with the receiving box 5 through a connecting block 37.

[0032] The guide block 35 is fixedly connected with the moving plate 34, the guide rod 36 is slidingly sleeved on the guide block 35 and fixedly connected with the receiving box 5 through the connecting block 37. When the moving plate 34 is driven to move by the driving member 3, the guide block 35 slides along the guide rod 36, the guide rod 36 plays a guiding role, limits the moving direction of the moving plate 34, so that it can only move along the direction of the guide rod 36, thereby enhancing the stability and accuracy of the movement of the moving plate 34, avoiding the deviation of the moving plate 34 during the movement, and ensuring that the cleaning mechanism 6 and the flattening mechanism 8 act on the aluminum bar cavity liner 2 during work, thereby further improving the quality of the aluminum bar casting.

[0033] In an alternative embodiment, the cleaning mechanism 6 comprises a rotating pipe 61, a ball screw 62, a pressing plate 63, a rotating ring 64, a driving rod 65 and a vertical actuator, one end of the rotating pipe 61 is fixedly connected with the moving plate 34, the ball screw 62 is provided with a sliding table, the rotating ring 64 is rotatably sleeved in the sliding table and rotatably connected with one end of the driving rod 65, the other end of the driving rod 65 slidingly passes through the moving plate 34 and is driven by the vertical actuator, the rotating pipe 61 is fixedly sleeved on the sliding table and fixedly connected with the pressing plate 63.

[0034] When the moving plate 34 moves, the rotating pipe 61 and the ball screw 62 are driven to move, the vertical actuator driving rod 65 moves up and down, and since the driving rod 65 is rotationally connected with the rotating ring 64, the rotating ring 64 rotates in the sliding table of the ball screw 62, so that the up and down movement of the driving rod 65 drives the sliding table to move along the length direction of the ball screw 62 and rotate, and further drives the rotating pipe 61 to rotate. The rotating pipe 61 is fixedly connected with the pressing plate 63, and when the rotating pipe 61 rotates, the pressing plate 63 rotates with it. The pressing plate 63 can arrange the aluminum liquid at the liquid level of the aluminum rod cavity bushing 2 during the rotating process, so that the aluminum liquid level is flat.

[0035] In an optional embodiment, the vertical actuator includes a linear actuator 66 mounted on the moving plate 34, and the driving end of the linear actuator 66 is fixedly connected with a pressing plate 67 fixedly connected with the driving rod 65.

[0036] The linear actuator 66 is mounted on the moving plate 34, and when the linear actuator 66 is started, the driving end of the linear actuator 66 drives the pressing plate 67 to move up and down. The pressing plate 67 is fixedly connected with the driving rod 65, so that the movement of the pressing plate 67 drives the driving rod 65 to move up and down, and the pressing plate 63 rotates to clean. The linear actuator 66 changes the movement distance and speed of the driving rod 65, ensures the accuracy and stability of the cleaning work, improves the cleaning effect, and ensures the cleanliness of the end of the aluminum rod cavity bushing 2 during the aluminum rod casting process.

[0037] Specifically, the linear actuator 66 is one of an oil cylinder, an electric push rod or a gas cylinder.

[0038] In an optional embodiment, the opening and closing mechanism 7 includes a mounting seat 71 and a hydraulic cylinder 72. The mounting seat 71 is mounted on the mold body 1 and is rotationally connected with the hydraulic cylinder 72 through a rotating shaft. The driving end of the hydraulic cylinder 72 is rotationally connected with the upper mold 4 through a rotating shaft.

[0039] The mounting seat 71 is fixed on the mold body 1, providing a mounting base for the hydraulic cylinder 72. When the hydraulic cylinder 72 is started, the driving end of the hydraulic cylinder 72 extends or retracts. Since the hydraulic cylinder 72 is rotationally connected with the mounting seat 71 and the upper mold 4 through rotating shafts at both ends, the extension and retraction of the driving end of the hydraulic cylinder 72 drives the upper mold 4 to rotate around the hinge, realizing the opening and closing action of the upper mold 4. This structure can quickly and stably control the opening and closing of the upper mold 4, facilitating the injection of the aluminum liquid into the aluminum rod cavity bushing 2 and the removal of the aluminum rod, and improving the efficiency of the casting work.

[0040] In an optional embodiment, the leveling mechanism 8 includes a sleeve 81, a pressing spring 82, a moving rod 83 and a scraping sheet 84. The sleeve 81 is fixedly connected with the rotating pipe 61 through a suspension rod 85. One end of the moving rod 83 slides into the inside of the sleeve 81 and is connected with the inner wall of the sleeve 81 through the pressing spring 82. The other end of the moving rod 83 is fixedly connected with the scraping sheet 84, which is used for scraping the aluminum liquid and impurities at the top end of the aluminum rod cavity bushing 2.

[0041] When the moving plate 34 drives the rotating tube 61 to move, the sleeve 81 moves along with the rotating tube 61 through the suspension rod 85 to move to the aluminum rod cavity bushing 2, and the straight-line actuator 66 drives the cleaning mechanism 6 to move downward through the pressing plate 67, accompanying the downward movement of the cleaning mechanism 6, the pressing plate 63 is pre-entered into the inside of the aluminum rod cavity bushing 2, and then the scraping piece 84 is in contact with the top end of the aluminum rod cavity bushing 2, the spring 82 makes the moving rod 83 always have the elastic force in the direction of the aluminum rod cavity bushing 2, so as to ensure that the scraping piece 84 can tightly contact the top end of the aluminum rod cavity bushing 2, accompanying the rotation of the rotating tube 61, the scraping piece 84 rotates to rotate and scrape, and meanwhile, the pressing plate 63 continuously extends into the inside of the aluminum rod cavity bushing 2, so as to achieve the effect of flattening the aluminum liquid in the aluminum rod cavity bushing 2 and cleaning the end part of the aluminum rod cavity bushing 2.

[0042] In an optional embodiment, the middle part of the top surface of the pressing plate 63 is outwardly inclined to guide the aluminum and scrap falling thereon.

[0043] The middle part of the top surface of the pressing plate 63 is outwardly inclined, when the aluminum liquid and scrap fall on the pressing plate 63, under the action of gravity and the rotation of the pressing plate 63, the aluminum and scrap will slide along the outwardly inclined top surface, so as to avoid the accumulation of the aluminum and scrap on the pressing plate 63, which affects the cleaning effect and the subsequent casting work.

[0044] In an optional embodiment, the cross section of the scraping piece 84 is V-shaped.

[0045] Further, the inside of the pressing plate 63 is provided with a heating element, and the heating element is arranged in the pressing plate 63 in a winding manner.

[0046] The heating element in the inside of the pressing plate 63 is arranged in a winding manner, when the heating element works, the pressing plate 63 can be uniformly heated, and after the heating, when the heated pressing plate 63 contacts the end part of the aluminum rod cavity bushing 2, the aluminum liquid can be prevented from being rapidly solidified at the end part, so as to avoid the defects of the aluminum rod end part caused by the temperature difference, and meanwhile, the heating element can also make the residual aluminum scrap and impurities more easily cleaned, improve the cleaning effect, and ensure the quality of the aluminum rod casting.

[0047] Working principle: Aluminum liquid injection and opening and closing of the upper mold: after the preparation work of the mold is completed, the opening and closing mechanism 7 is started, the driving end of the hydraulic cylinder 72 installed on the mold main body 1 is extended, the upper mold 4 is driven to rotate and close around the hinge, so as to facilitate the injection of the smelted aluminum liquid into the aluminum rod cavity bushing 2 through the upper mold 4.

[0048] Aluminum liquid leveling: after the moving plate 34 moves the cleaning mechanism 6 to the designated position, the linear actuator 66 installed on the moving plate 34 is started, the linear actuator 66 drives the end to drive the pressing plate 67 to move up and down, the pressing plate 67 drives the driving rod 65 to move up and down, since the driving rod 65 is rotationally connected with the rotating ring 64, the rotating ring 64 rotates in the sliding table of the ball screw 62, the movement of the driving rod 65 will make the sliding table move along the length direction of the ball screw 62 and rotate, and then drive the rotating pipe 61 to rotate, the pressing plate 63 fixedly connected with the rotating pipe 61 rotates accordingly, the rotating pressing plate 63 arranges the aluminum liquid surface in the aluminum rod cavity bushing 2, at the same time, the inclined top surface design makes the scattered aluminum and waste scraps slide along the outer periphery.

[0049] End cleaning: the driving part 3 is started, the driving motor 31 installed on the mold main body 1 drives the threaded rod 32 to rotate, since the threaded rod 32 is threadedly connected with the moving block 33, and the moving block 33 is slidably connected with the mold main body 1 and connected with the moving plate 34, the moving block 33 will move along the axial direction of the threaded rod 32, drive the moving plate 34 to slide in the sliding opening 51 of the receiving box 5, when the moving plate 34 moves, the pressing plate 63 extends into the inside of the aluminum rod cavity bushing 2, under the action of the ball screw 62, the pressing plate 63 rotates and levels the aluminum liquid, the sleeve pipe 81 of the leveling mechanism 8 is moved by the suspension rod 85, so that the scraping sheet 84 reaches the top end of the aluminum rod cavity bushing 2, at the same time, the scraping sheet 84 is tightly attached to the top end of the aluminum rod cavity bushing 2 by the abutting spring 82, and the scraping sheet 84 rotates to clean the end part of the aluminum rod cavity bushing 2.

[0050] Prevent end defects: the heating part in the pressing plate 63 works to uniformly heat the pressing plate 63, when the heated pressing plate 63 contacts the aluminum liquid surface in the aluminum rod cavity bushing 2, it can prevent the aluminum liquid from rapidly solidifying at the end part, which is beneficial to leveling the aluminum liquid, avoids the defects of the aluminum rod end part caused by temperature difference, and further guarantees the aluminum rod casting quality.

[0051] The embodiments of the present application are described above, but the embodiments are not limited to the specific implementation described above, the specific implementation described above is only illustrative but not limiting, and those skilled in the art can make many forms under the inspiration of the embodiments, which all belong to the protection of the embodiments.

Claims

1. A mold for casting aluminum rods, characterized in that, Including mold body (1), aluminum bar cavity bushing (2), driving part (3), upper die (4), receiving box (5), cleaning mechanism (6), opening and closing mechanism (7) and flattening mechanism (8); The aluminum bar cavity bushing (2) is arranged in the mold cavity of the mold body (1), the receiving box (5) is fixedly sleeved on the aluminum bar cavity bushing (2), and the upper die (4) is arranged on the receiving box (5) and driven to open and close by the opening and closing mechanism (7). The flattening mechanism (8) is slidably arranged on the receiving box (5) and is driven by the driving part (3) to flatten the liquid level of the aluminum liquid in the aluminum bar cavity bushing (2). The opening and closing mechanism (7) is arranged on the flattening mechanism (8) to clean the end of the aluminum bar cavity bushing (2) when the flattening mechanism (8) acts on the aluminum bar cavity bushing (2).

2. The mold for casting an aluminum bar according to claim 1, characterized by: The driving part (3) includes a driving motor (31), a threaded rod (32), a moving block (33) and a moving plate (34), the receiving box (5) is provided with a sliding port (51), the moving plate (34) is slidably arranged in the sliding port (51), the driving motor (31) is mounted on the mold body (1), and the driving shaft of the driving motor (31) is connected with the threaded rod (32), one end of the threaded rod (32) is threaded through the moving block (33), the moving block (33) is slidably connected with the mold body (1) and fixedly connected with one end of the moving plate (34).

3. The mold for casting an aluminum bar according to claim 2, characterized by: The other end of the moving plate (34) is fixedly connected with a guide block (35), the guide block (35) is slidably sleeved with a guide rod (36), and the guide rod (36) is fixedly connected with the receiving box (5) through a connecting block (37).

4. The mold for casting an aluminum bar according to claim 3, wherein: The cleaning mechanism (6) includes a rotating pipe (61), a ball screw (62), a pressing plate (63), a rotating ring (64), a driving rod (65) and a vertical actuator, one end of the rotating pipe (61) is fixedly connected with the moving plate (34), the ball screw (62) is provided with a sliding table, the rotating ring (64) is rotatably sleeved in the sliding table and rotatably connected with one end of the driving rod (65), the other end of the driving rod (65) is slidably arranged through the moving plate (34) and is driven by the vertical actuator, and the rotating pipe (61) is fixedly sleeved on the sliding table and fixedly connected with the pressing plate (63).

5. The mold for casting an aluminum bar according to claim 4, wherein: The vertical actuator includes a linear actuator (66) mounted on the moving plate (34), and the driving end of the linear actuator (66) is fixedly connected with a pressing plate (67) fixedly connected with the driving rod (65).

6. The mold for casting an aluminum bar according to claim 5, wherein: The opening and closing mechanism (7) includes a mounting seat (71) and a hydraulic cylinder (72), the mounting seat (71) is mounted on the mold body (1) and is rotatably connected with the hydraulic cylinder (72) through a rotating shaft, and the driving end of the hydraulic cylinder (72) is rotatably connected with the upper die (4) through a rotating shaft.

7. The mold for casting an aluminum bar according to claim 6, wherein: The flattening mechanism (8) comprises a sleeve (81), a pressing spring (82), a moving rod (83) and a scraping blade (84), the sleeve (81) is fixedly connected with the rotating pipe (61) through a suspension rod (85), one end of the moving rod (83) is slidably inserted into the interior of the sleeve (81) and is connected with the inner wall of the sleeve (81) through the pressing spring (82), the other end of the moving rod (83) is fixedly connected with the scraping blade (84), and the scraping blade (84) is used for scraping the aluminum liquid and impurities on the top end of the aluminum rod cavity bushing (2).

8. The mold for casting an aluminum bar according to claim 7, wherein: The top surface of the pressing plate (63) is outwardly inclined in the middle part to guide the aluminum and waste scraps scattered thereon.

9. The mold for casting an aluminum bar according to claim 8, wherein: The cross section of the scraping blade (84) is V-shaped.

10. The mold for casting an aluminum bar according to claim 9, wherein: The interior of the pressing plate (63) is provided with a heating element, and the heating element is arranged in the pressing plate (63) in a circuitous manner.