Metal casting molding device

Abstract

The invention discloses a metal casting forming device, and belongs to the technical field of metal casting forming, the metal casting forming device comprises a lifting seat and a smelting box, the lifting seat is vertically arranged, a lifting turnover mechanism for driving the smelting box to turn over is arranged on the lifting seat, and the lifting turnover mechanism is rotatably connected with the lifting seat; a bubble removing mechanism for removing bubbles is arranged in the smelting box; an impurity removing mechanism for removing impurities is arranged on the smelting box, the impurity removing mechanism can horizontally move on the smelting box, and an outlet is formed in the smelting box. According to the bubble removing mechanism, bubbles in molten metal can be removed, impurities in the molten metal can also be removed, when no bubbles exist in a metal casting, the strength and toughness of the metal casting can be remarkably improved, after the bubbles are removed, the metal structure is more compact, external force can be more effectively transmitted and dispersed, and the service life of the metal casting is prolonged. Therefore, the tensile strength, yield strength and other mechanical property indexes of the casting are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of metal casting and forming, and in particular relates to a metal casting and forming device. Background Art

[0002] Aluminum is widely used in the construction field, such as in the production of doors and windows, curtain walls, roofs, etc. Aluminum doors and windows have the advantages of light weight, corrosion resistance, and beautiful appearance.

[0003] With the progress of society and the development of science and technology, metal aluminum products are used more and more widely in industry, agriculture and various fields of people's lives, and are creating more and more value for society. Metal aluminum products often require casting molding devices in production.

[0004] However, during the existing metal pouring and smelting process, impurities or bubbles in the molten metal are not effectively removed. The presence of bubbles may aggravate the shrinkage and shrinkage holes of the casting during the solidification process. When the molten metal solidifies, the space occupied by the gas will hinder the molten metal from feeding the shrinkage parts, resulting in a loose structure inside the casting; the casting may break under a relatively low external force, thereby reducing the strength of the casting. Summary of the Invention

[0005] An embodiment of the present invention provides a metal casting device to solve the problems in the prior art.

[0006] The embodiment of the present invention adopts the following technical solution: a metal casting and forming device includes a lifting seat and a smelting box, the lifting seat is arranged vertically, and is provided with a lifting and flipping mechanism for driving the smelting box to flip, and the lifting and flipping mechanism is rotatably connected to the lifting seat; a bubble removal mechanism is provided in the smelting box for removing bubbles; an impurity removal mechanism is provided on the smelting box for removing impurities, and the impurity removal mechanism can move horizontally on the smelting box, and the smelting box is provided with an outlet.

[0007] A further technical solution is that the lifting and flipping mechanism includes a lifting motor, a synchronous shaft, a lifting and flipping plate, two lifting blocks and two lifting parts, the two lifting parts are symmetrically arranged on both sides of the lifting seat, each of the lifting parts includes an upper sprocket, a lower sprocket and a chain, the upper sprocket and the lower sprocket are symmetrically connected to the lifting seat, the chain is sleeved on the upper sprocket and the lower sprocket, the lifting motor is located on the side wall of the lifting seat, the two ends of the synchronous shaft are connected to the two lower sprockets, the synchronous shaft is connected to the main shaft of the lifting motor, the two lifting blocks are symmetrically slidingly connected to the lifting seat, the lifting block is connected to the chain, a rotatably connected flip shaft is provided between the two lifting blocks, and the lifting and flipping plate is horizontally fixedly connected to the flip shaft.

[0008] According to a further technical solution, the lifting and flipping mechanism also includes a flipping half gear and a flipping tooth plate. The flipping half gear is fixedly connected to the flipping shaft, and the flipping tooth plate is located on the side wall of the lifting seat. During the flipping of the lifting and flipping plate, the flipping half gear engages with the flipping tooth plate.

[0009] According to a further technical solution, four mounting ears are provided at the bottom of the smelting box, mounting bolts are provided on the mounting ears, and the smelting box is connected to the top of the lifting and flipping plate through the mounting bolts.

[0010] According to a further technical solution, the bubble removal mechanism includes a plurality of gas outlet pipes arranged at equal intervals at the bottom of the smelting box, and the gas outlet pipes are provided with a plurality of gas outlet nozzles arranged at equal intervals.

[0011] According to a further technical solution, the air outlet pipe and the air outlet nozzle are both made of cast iron.

[0012] According to a further technical solution, the impurity removal mechanism includes a movable frame and a horizontal electric slide. The horizontal electric slides are symmetrically arranged on both side walls of the smelting box, and the two ends of the movable frame are respectively connected to the movable ends of the two horizontal electric slides.

[0013] A further technical solution is that the movable frame is provided with a rotatably connected adjusting nut, the adjusting nut is provided with a threadedly connected adjusting screw, the bottom of the adjusting screw is provided with a rotatably connected scraper plate, and two sliding rods are respectively provided at both ends of the scraper plate, and the sliding rods are slidably matched with the movable frame.

[0014] The at least one technical solution adopted in the embodiment of the present invention can achieve the following beneficial effects:

[0015] First, the bubble removal mechanism in the present invention can not only remove bubbles in the molten metal but also remove impurities in the molten metal. When there are no bubbles in the metal casting, its strength and toughness will be significantly improved. After removing the bubbles, the metal structure will be denser and can more effectively transmit and disperse external forces, thereby improving the mechanical properties of the casting such as tensile strength and yield strength. After removing the bubbles, the surface of the casting will be smoother and flatter, which is conducive to subsequent surface treatment. The bubble removal operation can ensure that the molten metal shrinks evenly during solidification, making the casting size more precise and ensuring that the parts can be accurately assembled into the corresponding equipment.

[0016] Secondly, in the present invention, after the impurities in the molten metal caused by the inert gas move upward and float above the molten metal, the two horizontal electric slides work simultaneously to drive the position of the movable frame to move, thereby driving the position of the scraper to move horizontally in the smelting box, and discharging the impurities outward from the outlet. In the process of scraping the impurities, the height position of the scraper can also be adjusted according to the different heights of the molten metal in the smelting box. At this time, the adjusting nut is rotated on the movable frame, thereby driving the position of the adjusting screw to move up and down. The movement of the adjusting screw can drive the position of the scraper to move up and down on the movable frame through the two slide bars, thereby adjusting the position height of the scraper to discharge the floating impurities outward through the outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 A top view of the present invention;

[0020] Figure 3 This is a schematic diagram of the first three-dimensional structure of the lifting and flipping mechanism of the present invention;

[0021] Figure 4 This is a schematic diagram of a second three-dimensional structure of the lifting and flipping mechanism of the present invention;

[0022] Figure 5 Schematic diagram of the three-dimensional structure of the smelting box and bubble removal mechanism in the present invention;

[0023] Figure 6 Schematic diagram of the three-dimensional structure of the impurity remover of the present invention;

[0024] Reference numerals:

[0025] Lifting seat 1, smelting box 2, outlet 21, mounting ear 22, lifting and flipping mechanism 3, lifting motor 30, synchronization shaft 31, lifting and flipping plate 32, lifting block 33, upper sprocket 34, lower sprocket 35, chain 36, flipping shaft 37, flipping half gear 38, flipping gear plate 39, bubble removal mechanism 4, air outlet pipe 41, air outlet nozzle 42, impurity removal mechanism 5, moving frame 51, horizontal electric slide 52, adjusting nut 53, adjusting screw 54, scraper plate 55, slide rod 56. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The following describes in detail a technical solution of a metal casting device provided by various embodiments of the present invention in conjunction with the accompanying drawings.

[0028] Reference Figures 1 to 6 As shown, an embodiment of the present invention provides a metal casting and forming device, comprising a lifting base 1 and a smelting box 2. The lifting base 1 is vertically arranged and is provided with a lifting and turning mechanism 3 for driving the smelting box 2 to turn over. The lifting and turning mechanism 3 is rotatably connected to the lifting base 1. A bubble removal mechanism 4 for removing bubbles is provided in the smelting box 2. An impurity removal mechanism 5 for removing impurities is provided on the smelting box 2. The impurity removal mechanism 5 can move horizontally on the smelting box 2. The smelting box 2 is provided with an outlet 21.

[0029] It should be noted that when the device is in use, metallic aluminum is melted, and the molten metal obtained by smelting is metallic aluminum liquid.

[0030] In this embodiment, the lifting and flipping mechanism 3 includes a lifting motor 30, a synchronous shaft 31, a lifting and flipping plate 32, two lifting blocks 33 and two lifting members. The two lifting members are symmetrically arranged on both sides of the lifting seat 1. Each lifting member includes an upper sprocket 34, a lower sprocket 35 and a chain 36. The upper sprocket 34 and the lower sprocket 35 are symmetrically rotated up and down and connected to the lifting seat 1. The chain 36 is sleeved on the upper sprocket 34 and the lower sprocket 35. The lifting motor 30 is located on the side wall of the lifting seat 1. The two ends of the synchronous shaft 31 are connected to the two lower sprockets 35. The synchronous shaft 31 Connected to the main shaft of the lifting motor 30, the two lifting blocks 33 are symmetrically slidably connected to the lifting base 1, the lifting blocks 33 are connected to the chain 36, and a rotatably connected flip shaft 37 is provided between the two lifting blocks 33, and the lifting flip plate 32 is horizontally fixedly connected to the flip shaft 37; the lifting and flipping mechanism 3 also includes a flip half gear 38 and a flip tooth plate 39, the flip half gear 38 is fixedly connected to the flip shaft 37, and the flip tooth plate 39 is located on the side wall of the lifting base 1, and the flip half gear 38 is engaged with the flip tooth plate 39 during the flipping of the lifting and flipping plate 32.

[0031] When the molten metal in the smelting box 2 is poured outward, the lifting motor 30 drives the synchronous shaft 31 to rotate on the lifting seat 1, thereby driving the two lower sprockets 35 to rotate. The rotation of the two lower sprockets 35 will respectively drive the two chains 36 to drive the two upper sprockets 34 to rotate. In the process of rotation of the two chains 36, the two lifting blocks 33 will respectively slide on the lifting seat 1, thereby driving the position of the flip shaft 37 and the lifting flip plate 32 to move in the vertical direction. When the flip gear on the flip shaft 37 contacts the flip gear plate 39, the flip shaft 37 will be driven to rotate and flip on the two lifting blocks 33, rotating the horizontal lifting flip plate 32 to tilt, thereby driving the smelting box 2 to tilt and rotate, and the molten metal is discharged outward from the outlet 21 on the smelting box 2, so as to realize the casting molding of metal aluminum.

[0032] In this embodiment, four mounting ears 22 are provided at the bottom of the smelting box 2 , and mounting bolts are provided on the mounting ears 22 . The smelting box 2 is connected to the top of the lifting and turning plate 32 through the mounting bolts.

[0033] In this embodiment, the bubble removal mechanism 4 includes a plurality of gas outlet pipes 41 arranged at equal intervals at the bottom of the smelting box 2 , and the gas outlet pipes 41 are provided with a plurality of gas outlet nozzles 42 arranged at equal intervals.

[0034] When removing bubbles from the molten metal, an inert gas is transported into a plurality of gas outlet pipes 41 and then transported into the molten metal through the gas outlet nozzles 42 on the gas outlet pipes 41. Inert gas (such as argon or nitrogen) is introduced into the molten metal, and the inert gas forms tiny bubbles in the molten metal. As these bubbles rise, they absorb harmful gases such as hydrogen from the molten metal and are discharged as the bubbles float to the surface of the molten metal. For example, in aluminum alloy smelting, argon is introduced into the bottom of the molten aluminum at an appropriate flow rate of generally 0.1-0.3L / min·kg metal. As the bubbles rise, they fully contact the molten aluminum and carry away the hydrogen in it.

[0035] The bubbles formed by the inert gas can absorb impurity particles in the molten metal during the rising process, and float them to the surface of the molten metal for removal. At the same time, this method can also be used for degassing. For example, in magnesium alloy smelting, the rising argon bubbles will absorb oxide inclusions such as MgO and gases such as hydrogen in the magnesium liquid, purifying the magnesium liquid and floating impurities upward to the top of the molten metal for subsequent removal.

[0036] The bubble removal mechanism 4 in the present invention can not only remove bubbles in the molten metal but also remove impurities in the molten metal. When there are no bubbles in the metal casting, its strength and toughness will be significantly improved. After removing the bubbles, the metal structure is denser and can more effectively transmit and disperse external forces, thereby improving the mechanical properties of the casting such as tensile strength and yield strength. After removing the bubbles, the surface of the casting is smoother and flatter, which is conducive to subsequent surface treatment. The bubble removal operation can ensure that the molten metal shrinks evenly during solidification, making the casting size more precise and ensuring that the parts can be accurately assembled into the corresponding equipment.

[0037] In this embodiment, the outlet pipe 41 and outlet nozzle 42 are both made of cast iron. With a melting point of 660°C, cast iron will not melt due to the high temperatures during the smelting process. Cast iron itself has a certain degree of high-temperature resistance, with a melting point between 1148°C and 1279°C. However, to prevent chemical reactions between cast iron and aluminum, a high-temperature-resistant and chemically stable coating, such as silicon nitride, is applied to the interior of the cast iron smelting barrel. This coating effectively isolates the cast iron from the aluminum and also offers excellent thermal shock resistance, allowing it to withstand rapid temperature fluctuations.

[0038] During the smelting process of the aluminum metal, after the aluminum metal is melted, the gas outlet pipe 41 and the gas outlet nozzle 42 can work normally, transporting the inert gas to the molten metal in the smelting box 2 to remove impurities and bubbles in the molten metal.

[0039] In this embodiment, the impurity removal mechanism 5 includes a moving frame 51 and a horizontal electric slide 52. The horizontal electric slides 52 are symmetrically arranged on the side walls of the smelting box 2. The two ends of the moving frame 51 are respectively connected to the moving ends of the two horizontal electric slides 52; the moving frame 51 is provided with a rotatably connected adjusting nut 53, and the adjusting nut 53 is provided with a threaded adjusting screw 54. The bottom of the adjusting screw 54 is provided with a rotatably connected scraper plate 55, and the two ends of the scraper plate 55 are respectively provided with two slide rods 56, and the slide rods 56 are slidably engaged with the moving frame 51.

[0040] After the impurities in the molten metal caused by the inert gas move upward and float above the molten metal, the two horizontal electric slides 52 work simultaneously to move the position of the movable frame 51, thereby driving the position of the scraper plate 55 to move horizontally in the smelting box 2, and discharge the impurities outward from the outlet 21. In the process of scraping the impurities, the height position of the scraper plate 55 can also be adjusted according to the different heights of the molten metal in the smelting box 2. At this time, the adjusting nut 53 is rotated on the movable frame 51, thereby driving the position of the adjusting screw 54 to move up and down. The movement of the adjusting screw 54 can drive the position of the scraper plate 55 to move up and down on the movable frame 51 through the two slide rods 56, thereby adjusting the position height of the scraper plate 55 to discharge the floating impurities outward through the outlet 21.

[0041] The foregoing is merely an embodiment of the present invention and is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A metal casting device, characterized in that: It comprises a lifting seat (1) and a smelting box (2), wherein the lifting seat (1) is arranged vertically. The lifting seat (1) is provided with a lifting and turning mechanism (3) for driving the smelting box (2) to turn over, and the lifting and turning mechanism (3) is rotatably connected to the lifting seat (1); A bubble removal mechanism (4) for removing bubbles is provided in the smelting box (2); The smelting box (2) is provided with an impurity removal mechanism (5) for removing impurities. The impurity removal mechanism (5) can move horizontally on the smelting box (2). The smelting box (2) is provided with an outlet (21).

2. A metal casting device according to claim 1, characterized in that: The lifting and turning mechanism (3) comprises a lifting motor (30), a synchronous shaft (31), a lifting and turning plate (32), two lifting blocks (33) and two lifting parts. The two lifting members are symmetrically arranged on both sides of the lifting seat (1), and each lifting member includes an upper sprocket (34), a lower sprocket (35) and a chain (36). The upper sprocket (34) and the lower sprocket (35) are connected to the lifting seat (1) in a symmetrical manner, and the chain (36) is sleeved on the upper sprocket (34) and the lower sprocket (35). The lifting motor (30) is located on the side wall of the lifting seat (1), the two ends of the synchronization shaft (31) are connected to the two lower sprockets (35), and the synchronization shaft (31) is connected to the main shaft of the lifting motor (30). The two lifting blocks (33) are symmetrically slidably connected to the lifting seat (1), and the lifting blocks (33) are connected to the chain (36). A rotatably connected flip shaft (37) is provided between the two lifting blocks (33), and the lifting flip plate (32) is horizontally fixedly connected to the flip shaft (37).

3. A metal casting device according to claim 2, characterized in that: The lifting and turning mechanism (3) further comprises a turning half gear (38) and a turning tooth plate (39), wherein the turning half gear (38) is fixedly connected to the turning shaft (37). The flip tooth plate (39) is located on the side wall of the lifting seat (1), and the flip half gear (38) is engaged with the flip tooth plate (39) during the process of flipping the lifting flip plate (32).

4. The metal casting device according to claim 2, characterized in that: The bottom of the smelting box (2) is provided with four mounting ears (22), and the mounting ears (22) are provided with mounting bolts. The smelting box (2) is connected to the top of the lifting and turning plate (32) through the mounting bolts.

5. The metal casting device according to claim 1, characterized in that: The bubble removal mechanism (4) comprises a plurality of gas outlet pipes (41) arranged at equal intervals on the bottom of the smelting box (2), and the gas outlet pipes (41) are provided with a plurality of gas outlet nozzles (42) arranged at equal intervals.

6. The metal casting device according to claim 5, characterized in that: The air outlet pipe (41) and the air outlet nozzle (42) are both made of cast iron.

7. The metal casting device according to claim 1, characterized in that: The impurity removal mechanism (5) includes a moving frame (51) and a horizontal electric slide (52), wherein the horizontal electric slide (52) is symmetrically arranged on both side walls of the smelting box (2). The two ends of the movable frame (51) are respectively connected to the movable ends of two horizontal electric slides (52).

8. The metal casting device according to claim 7, characterized in that: The movable frame (51) is provided with a rotationally connected adjusting nut (53), and the adjusting nut (53) is provided with a threadedly connected adjusting screw (54). A rotatably connected scraping plate (55) is provided at the bottom of the adjusting screw (54), and two sliding rods (56) are respectively provided at both ends of the scraping plate (55), and the sliding rods (56) are slidably matched with the moving frame (51).

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