Method and device for guaranteeing quality of molten aluminum in aluminum ingot casting process

Abstract

The invention discloses a molten aluminum quality guaranteeing method and device in the aluminum ingot casting process, and the molten aluminum quality guaranteeing device comprises a containing cylinder used for containing molten aluminum, and a liquid inlet pipe is connected to the containing cylinder; the liquid discharging disc is located at the bottom of the containing cylinder, a plurality of discharging pipes are arranged on the bottom face of the liquid discharging disc at intervals, and valves are installed on the discharging pipes; the auxiliary exhaust mechanism is located above the drainage disc and comprises a sliding plate, the middle of the sliding plate is connected with a circular carrier plate, and a plurality of exhaust heads are arranged below the circular carrier plate at intervals; and the driving mechanism is connected with the sliding plate and used for driving the sliding plate to move up and down. According to the aluminum ingot casting device, the sliding plate is driven by the driving part to move downwards, then the movable rod is driven by the air cylinder to slide along the inner wall of the discharge pipe, the discharge pipe is subjected to exhaust operation through the exhaust head, it is guaranteed that no bubble exists after follow-up molten aluminum enters the discharge pipe, the quality of the molten aluminum is controlled through the auxiliary exhaust mechanism, and the aluminum ingot casting effect is improved.

Description

Technical Field

[0001] The present invention relates to a method and a device for ensuring the quality of molten aluminum, and in particular to a method and a device for ensuring the quality of molten aluminum during the casting process of aluminum ingots. Background Art

[0002] Cast aluminum alloy is an aluminum product produced by casting. Casting is a technology that pours molten metal into a casting cavity that matches the shape of the required part, and obtains parts or blanks after it cools and solidifies. At present, the main molding method of aluminum ingots is to inject aluminum alloy solution into the mold and wait for it to cool and form. The essence of die-casting aluminum ingots is to fill the die-casting aluminum ingot cavity with liquid or semi-liquid metal at a high speed under high pressure, and to form and solidify under pressure to obtain castings. When die-casting aluminum ingots, due to the high speed of liquid metal filling the cavity and unstable flow state, a general conventional distribution device is used. Since the aluminum liquid needs to flow into the mold, a stable input is required. If the aluminum liquid cannot be controlled at any time, it is easy to cause the mold to overflow after being filled with aluminum liquid. At the same time, due to the lack of exhaust operation, the die-casting molding of aluminum liquid is affected.

[0003] In view of this, it is necessary to design a device to ensure the quality of molten aluminum during the aluminum ingot casting process. Summary of the invention

[0004] In order to solve the deficiencies of the above-mentioned technology, the present invention provides a method and device for ensuring the quality of molten aluminum during the casting process of aluminum ingots.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a device for ensuring the quality of molten aluminum during the casting process of aluminum ingots, comprising:

[0006] A holding cylinder for holding aluminum liquid, the holding cylinder being connected with a liquid inlet pipe;

[0007] A drain pan is located at the bottom of the accommodating cylinder, and a plurality of drain pipes are arranged at intervals on the bottom surface of the drain pan, and valves are installed on the drain pipes;

[0008] The auxiliary exhaust mechanism is located above the drain pan, and the auxiliary exhaust mechanism includes:

[0009] A sliding plate, the middle of which is connected to a circular carrier plate, and a plurality of exhaust heads are arranged at intervals below the circular carrier plate;

[0010] The driving mechanism connected to the sliding plate is used to drive the sliding plate to move up and down.

[0011] Preferably, a plurality of drainage holes connected to the discharge pipe are provided on the drainage plate, and the drainage holes correspond to the exhaust heads one by one.

[0012] Preferably, a plurality of rectangular blocks are arranged at intervals on the bottom surface of the circular carrier plate, a movable rod is vertically inserted in the middle of the rectangular block, the movable rod is connected to the pressure plate on one side close to the circular carrier plate, an exhaust head is arranged on the other end, and a spring is sleeved between the movable rod and the pressure plate.

[0013] Preferably, the pressing plate is located below the circular carrier plate, the center of the pressing plate is connected to the output end of the cylinder, and the cylinder is located on the circular carrier plate; the top of the rectangular block is fixedly connected to the circular carrier plate through a connecting block.

[0014] Preferably, the driving mechanism includes two groups of threaded rods arranged in parallel, one end of each group of threaded rods is provided with a limit block, and the other end passes through the top of the accommodating cylinder and is connected to the pulley. The two pulleys are connected by a belt, and the free end of one of the threaded rods is connected to the output shaft of the motor.

[0015] Preferably, the sliding plate is sleeved on the threaded rod and is threadably connected to the threaded rod.

[0016] Preferably, sliding grooves are symmetrically provided on the inner wall of the accommodating cylinder, and sliding blocks are symmetrically provided at both ends of the sliding plate. The sliding blocks are embedded in the sliding grooves and can slide up and down along the sliding grooves.

[0017] Preferably, a fixing seat is provided below the accommodating cylinder, and support columns are respectively installed at the bottom corners of the fixing seat.

[0018] Preferably, a through hole with a diameter smaller than that of the accommodating tube is formed at the center of the fixing seat, and the accommodating tube is placed above the through hole and the center lines of the two coincide.

[0019] Preferably, the method specifically comprises:

[0020] The aluminum liquid enters the holding cylinder through the liquid inlet pipe. At this time, the valve on the discharge pipe is closed. When the holding cylinder is filled with aluminum liquid, the valve is opened to discharge the aluminum liquid through the discharge pipe, ensuring uniform distribution of the aluminum liquid.

[0021] After the aluminum liquid is discharged, the motor is started, and the motor drives the threaded rod connected to it to rotate. The rotation of the threaded rod drives the pulley on it to rotate, and further drives another threaded rod to rotate through the belt. During the rotation of the threaded rod, the sliding plate connected to its thread slides downward along the inner wall of the accommodating tube until it slides to the end of the slide groove. At this time, the cylinder is started, and the cylinder drives the pressure plate to move downward. During the downward movement of the pressure plate, an external force is applied to the movable rod connected to it, so that the movable rod moves downward along the rectangular block. In this process, the spring is squeezed, and the exhaust head at the end of the movable rod enters the exhaust hole and moves downward along the discharge pipe. Exhaust is achieved in this process, and then the pressure plate is reset by the cylinder, and the sliding plate is reset by the motor to continue the next liquid inlet distribution of aluminum liquid.

[0022] The present invention arranges an auxiliary exhaust mechanism in the receiving tube. After the aluminum liquid is distributed, the driving part drives the sliding plate to move downward, and then the cylinder drives the movable rod to slide along the inner wall of the discharge pipe. The exhaust head is used to exhaust the discharge pipe, so as to ensure that there are no bubbles after the subsequent aluminum liquid enters the discharge pipe, thereby ensuring the die-casting quality of the aluminum liquid. The auxiliary exhaust mechanism is used to control the quality of the aluminum liquid, thereby improving the casting effect of the aluminum ingot. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the auxiliary exhaust mechanism of the present invention.

[0025] Figure 3 for Figure 1 Schematic diagram of the internal structure.

[0026] In the figure: 1. accommodating cylinder; 2. drain pan; 3. auxiliary exhaust mechanism; 10. fixing seat; 11. liquid inlet pipe; 12. supporting column; 21. drain hole; 22. discharge pipe; 31. sliding plate; 32. circular carrier plate; 33. exhaust head; 34. rectangular block; 35. movable rod; 36. pressure plate; 37. spring; 38. cylinder; 39. connecting block; 41. threaded rod; 42. limit block; 43. motor; 44. belt. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] Figure 1 The device for ensuring the quality of liquid aluminum during the casting process of aluminum ingots shown in the figure comprises:

[0030] The receiving cylinder 1 is used for containing the aluminum liquid, and the receiving cylinder 1 is connected with a liquid inlet pipe 11; by arranging the liquid inlet pipe to be connected with the aluminum liquid delivery pipe, the aluminum liquid can be delivered into the receiving cylinder, which is convenient for the subsequent distribution of the aluminum liquid.

[0031] A drain pan 2 is located at the bottom of the accommodating cylinder, and a plurality of drain pipes 22 are arranged at intervals on the bottom surface of the drain pan 2, and valves are installed on the drain pipes 22;

[0032] By setting up the discharge pipe, the aluminum liquid can be evenly distributed. Since the size, diameter and length of each discharge pipe are the same, when the aluminum liquid enters the containing cylinder, the aluminum liquid can be evenly distributed through the discharge pipe.

[0033] The auxiliary exhaust mechanism 3 located above the drain pan 2 is as follows: Figure 2As shown, the auxiliary exhaust mechanism 3 includes: by setting up an auxiliary exhaust mechanism, the residual aluminum liquid or the bubbles generated in the discharge pipe are eliminated to ensure that no bubbles are generated when the aluminum liquid enters next time, thereby avoiding bubbles in the subsequent die-cast aluminum ingots and improving the die-casting quality of the aluminum liquid.

[0034] A sliding plate 31, a circular carrier plate 32 is connected to the middle of the sliding plate 31, and a plurality of exhaust heads 33 are arranged at intervals below the circular carrier plate 32;

[0035] By setting a sliding plate, it can slide along the inner wall of the accommodating tube to adjust the position of the auxiliary exhaust mechanism, and by setting an exhaust head, the exhaust pipe can be exhausted.

[0036] The driving mechanism connected to the sliding plate 31 is used to drive the sliding plate 31 to move up and down.

[0037] The driving mechanism is provided to drive the sliding plate to slide along the inner wall of the accommodating tube, thereby further assisting the exhaust.

[0038] Specifically, a plurality of drainage holes 21 connected to the discharge pipe are formed on the drainage plate 2 , and the drainage holes 21 correspond to the exhaust heads 33 one by one.

[0039] By opening drainage holes and corresponding the drainage holes to the exhaust heads one by one, the exhaust heads can enter the drainage pipe through the drainage holes, and at the same time, the aluminum liquid enters the mold along the discharge pipe through the drainage holes, so that multiple exhaust heads can enter the discharge pipe at the same time to perform exhaust operations.

[0040] Furthermore, a plurality of rectangular blocks 34 are arranged at intervals on the bottom surface of the circular carrier plate 32, a movable rod 35 is vertically inserted in the middle of the rectangular block 34, the movable rod 35 is connected to the pressure plate 36 on one side close to the circular carrier plate, and an exhaust head 33 is arranged on the other end, and a spring 37 is sleeved between the movable rod 35 and the pressure plate.

[0041] In order to adjust the exhaust head, a pressure plate is arranged under the circular carrier plate, and the pressure plate is connected to the end of the movable rod, and the other end of the movable rod passes through the rectangular block and is connected to the exhaust head. At the same time, the rectangular block is fixedly connected to the circular carrier plate through a connecting block. Therefore, in the process of the pressure plate squeezing the movable rod, the movable rod can move up and down along the rectangular block, thereby adjusting the position of the exhaust head, so that the exhaust head can enter the drainage hole and move up and down along the discharge pipe to complete operations such as eliminating bubbles.

[0042] Preferably, the pressing plate 36 is located below the circular carrier plate 32 , the center of the pressing plate 36 is connected to the output end of the cylinder 38 , and the cylinder 38 is located on the circular carrier plate; the top of the rectangular block 34 is fixedly connected to the circular carrier plate through a connecting block 39 .

[0043] By setting a spring between the movable rod and the pressure plate, the movable rod has room to move downward. When the pressure plate moves downward to produce maximum compression on the spring, the movable rod stops moving. At this time, the pressure on the movable rod is withdrawn. Under the action of the spring, the movable rod will automatically reset, and the cylinder will drive the pressure plate to move upward to its initial position.

[0044] As a preference, Figure 3 As shown, the driving mechanism includes two groups of threaded rods 41 arranged in parallel, one end of the two groups of threaded rods 41 is provided with a limit block 42, and the other end passes through the top of the accommodating cylinder and is connected to the pulley. The two pulleys are connected by a belt 44, and the free end of one of the threaded rods is connected to the output shaft of the motor 43.

[0045] By setting the threaded rod, the sliding plate can be moved up and down, thereby driving the circular carrier plate to move downward as a whole, so that the exhaust operation of the subsequent exhaust head can be realized;

[0046] The specific working process is: start the motor, the motor drives one of the threaded rods to rotate, thereby driving the pulley on it to rotate, and transmission is achieved through the belt between the two pulleys, thereby driving the other threaded rod to rotate synchronously. During the rotation of the threaded rod, the sliding plate is driven up and down.

[0047] In order to facilitate the position adjustment of the sliding plate, the sliding plate 31 is placed on the threaded rod 41 and connected with the thread thereof. Thus, after the threaded rod rotates, the sliding plate can move along the threaded rod to adjust the position of the auxiliary exhaust mechanism.

[0048] In order to cooperate with the movement of the sliding plate, sliding grooves are symmetrically opened on the inner wall of the accommodating tube 1, and sliding blocks are symmetrically arranged at both ends of the sliding plate 31. The sliding blocks are embedded in the sliding grooves and can slide up and down along the sliding grooves.

[0049] By providing a sliding groove on the inner wall of the accommodating tube, not only can the position of the sliding plate be adjusted, but it can also ensure that the sliding plate can maintain linear movement during the movement process, thereby ensuring the subsequent exhaust effect.

[0050] Preferably, a fixing seat 10 is provided below the accommodating cylinder 1, and support columns 12 are respectively installed at the bottom corners of the fixing seat 10. A through hole with a diameter smaller than that of the accommodating cylinder is formed at the center of the fixing seat 10, and the accommodating cylinder 1 is placed above the through hole and the center lines of the two coincide.

[0051] The accommodating cylinder is supported by providing a fixing seat, and a through hole is opened in the center of the fixing seat so that the accommodating cylinder can be placed on the fixing seat, thereby ensuring that the discharge pipe can be placed normally.

[0052] The method specifically includes:

[0053] The aluminum liquid enters the holding cylinder through the liquid inlet pipe. At this time, the valve on the discharge pipe is closed. When the holding cylinder is filled with aluminum liquid, the valve is opened to discharge the aluminum liquid through the discharge pipe, ensuring uniform distribution of the aluminum liquid.

[0054] After the aluminum liquid is discharged, the motor is started, and the motor drives the threaded rod connected to it to rotate. The rotation of the threaded rod drives the pulley on it to rotate, and further drives another threaded rod to rotate through the belt. During the rotation of the threaded rod, the sliding plate connected to its thread slides downward along the inner wall of the accommodating tube until it slides to the end of the slide groove. At this time, the cylinder is started, and the cylinder drives the pressure plate to move downward. During the downward movement of the pressure plate, an external force is applied to the movable rod connected to it, so that the movable rod moves downward along the rectangular block. In this process, the spring is squeezed, and the exhaust head at the end of the movable rod enters the exhaust hole and moves downward along the discharge pipe. Exhaust is achieved in this process, and then the pressure plate is reset by the cylinder, and the sliding plate is reset by the motor to continue the next liquid inlet distribution of aluminum liquid.

[0055] Example 2

[0056] The difference between this embodiment and embodiment 1 is that the driving mechanism used is different. The driving mechanism includes: a cylinder installed on the top of the accommodating tube, there are two cylinders, the output ends of the two cylinders are respectively fixedly connected to the sliding top, and the sliding plate is driven by the cylinder to slide along the inner wall of the accommodating tube to realize the position adjustment of the auxiliary exhaust mechanism.

[0057] The purpose of the present invention is to provide a method and device for ensuring the quality of aluminum liquid during the casting process of aluminum ingots. By pouring aluminum liquid into the inner cavity of a containing box, the aluminum liquid will be discharged from the discharge pipe at the bottom of the containing box and discharged into the mold of the production line below. After the mold is filled with aluminum liquid, the discharge pipe can be closed by a valve, thereby blocking the discharge pipe, and the aluminum liquid in the containing box will not flow out, thereby achieving uniform distribution of the aluminum liquid. At the same time, by providing an auxiliary exhaust mechanism, the liquid or bubbles in the discharge pipe are eliminated through the exhaust head, thereby ensuring the pressing quality of the aluminum ingot.

[0058] The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also belong to the protection scope of the present invention.

Claims

1. A device for ensuring the quality of molten aluminum during the casting process of aluminum ingots, characterized in that: include: A containing cylinder (1) for containing aluminum liquid, wherein the containing cylinder (1) is connected to a liquid inlet pipe (11); A drain pan (2) is located at the bottom of the accommodating cylinder, a plurality of drain pipes (22) are arranged at intervals on the bottom surface of the drain pan (2), and a valve is installed on the drain pipe (22); An auxiliary exhaust mechanism (3) is located above the drain pan (2), and the auxiliary exhaust mechanism (3) comprises: A sliding plate (31), wherein a circular carrier plate (32) is connected to the middle of the sliding plate (31), and a plurality of exhaust heads (33) are arranged at intervals below the circular carrier plate (32); A driving mechanism connected to the sliding plate (31) is used to drive the sliding plate (31) to move up and down.

2. The aluminum liquid quality assurance device in the aluminum ingot casting process according to claim 1 is characterized in that: The drain plate (2) is provided with a plurality of drain holes (21) connected to the discharge pipe, and the drain holes (21) correspond to the exhaust heads (33) one by one.

3. The aluminum liquid quality assurance device in the aluminum ingot casting process according to claim 2 is characterized in that: A plurality of rectangular blocks (34) are arranged at intervals on the bottom surface of the circular carrier plate (32), a movable rod (35) is vertically inserted in the middle of the rectangular block (34), the movable rod (35) is connected to a pressure plate (36) at one side close to the circular carrier plate, and an exhaust head (33) is arranged at the other end, and a spring (37) is sleeved between the movable rod (35) and the pressure plate.

4. The aluminum liquid quality assurance device in the aluminum ingot casting process according to claim 3 is characterized in that: The pressing plate (36) is located below the circular carrier plate (32), the center of the pressing plate (36) is connected to the output end of the cylinder (38), and the cylinder (38) is located on the circular carrier plate; the top of the rectangular block (34) is fixedly connected to the circular carrier plate through a connecting block.

5. The aluminum liquid quality assurance device in the aluminum ingot casting process according to claim 4 is characterized in that: The driving mechanism comprises two groups of threaded rods (41) arranged in parallel, one end of each of the two groups of threaded rods (41) is provided with a limit block (42), and the other end respectively passes through the top of the accommodating cylinder and is connected to a pulley, and the two pulleys are connected by a belt (44), and the free end of one of the threaded rods is connected to the output shaft of the motor (43).

6. The aluminum liquid quality assurance device in the aluminum ingot casting process according to claim 5 is characterized in that: The sliding plate (31) is sleeved on the threaded rod (41) and is threadably connected to the threaded rod.

7. The aluminum liquid quality assurance device in the aluminum ingot casting process according to claim 6 is characterized in that: The inner wall of the accommodating cylinder (1) is symmetrically provided with sliding grooves, and sliding blocks are symmetrically provided at both ends of the sliding plate (31). The sliding blocks are embedded in the sliding grooves and can slide up and down along the sliding grooves.

8. The aluminum liquid quality assurance device in the aluminum ingot casting process according to claim 7 is characterized in that: A fixing seat (10) is arranged below the accommodating cylinder (1), and support columns (12) are respectively installed at the top corners of the bottom of the fixing seat (10).

9. The aluminum liquid quality assurance device in the aluminum ingot casting process according to claim 8, characterized in that: A through hole with a diameter smaller than that of the accommodating tube is formed at the center of the fixing seat (10); the accommodating tube (1) is placed above the through hole and the center lines of the two coincide.

10. The method of the aluminum liquid quality assurance device in the aluminum ingot casting process according to any one of claims 1 to 9, characterized in that: The method specifically includes: The aluminum liquid enters the holding cylinder through the liquid inlet pipe. At this time, the valve on the discharge pipe is closed. When the holding cylinder is filled with aluminum liquid, the valve is opened to discharge the aluminum liquid through the discharge pipe, ensuring uniform distribution of the aluminum liquid. After the aluminum liquid is discharged, the motor is started, and the motor drives the threaded rod connected to it to rotate. The rotation of the threaded rod drives the pulley on it to rotate, and further drives another threaded rod to rotate through the belt. During the rotation of the threaded rod, the sliding plate connected to its thread slides downward along the inner wall of the accommodating tube until it slides to the end of the slide groove. At this time, the cylinder is started, and the cylinder drives the pressure plate to move downward. During the downward movement of the pressure plate, an external force is applied to the movable rod connected to it, so that the movable rod moves downward along the rectangular block. In this process, the spring is squeezed, and the exhaust head at the end of the movable rod enters the exhaust hole and moves downward along the discharge pipe. Exhaust is achieved in this process, and then the pressure plate is reset by the cylinder, and the sliding plate is reset by the motor to continue the next liquid inlet distribution of aluminum liquid.

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