Aluminum alloy casting liquid impurity filtering device

Abstract

The utility model relates to the technical fields of aluminium alloy melting and casting, especially to an aluminium alloy melting and casting liquid impurity filtering device, including filter box, the top side end of filter box is installed with feeding hopper, and the inside installation of filter box has filter plate, and the upper side of filter plate is provided with movable plate that realizes longitudinal reciprocating movement by the drive mechanism drive, the bottom surface of movable plate is installed with a plurality of conical blocks close to the upper side of filter plate at equal intervals, and the bottom of one side wall of filter box is installed with discharge hopper. The device helps aluminium alloy melting and casting liquid to filter through filter plate smoothly, and the filtered melting and casting liquid flows out conveniently, and the operation is convenient, and the practicality is better.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum alloy casting, and in particular to a device for filtering impurities in aluminum alloy casting liquid. Background Technology

[0002] Aluminum alloys are one of the most widely used non-ferrous metal structural materials in industry. They are widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industries. Currently, after aluminum alloys are melted and cast, they often need to be filtered through impurity filtration devices to remove impurities from the molten aluminum in order to improve the precision of the cast workpiece.

[0003] A Chinese patent website discloses an aluminum molten metal impurity filtration device for aluminum alloy casting, publication number CN215085273U. It includes a filter box with a filter chamber centrally located at the top and a cover plate hinged to one side of the top of the filter box. The cover plate has a centrally located feeding port for a fixed installation of a feeding hopper. Two side plates are constructed on both sides of the bottom of the feeding hopper, and an arc-shaped diversion plate for diverting the aluminum molten metal is fixedly connected to the bottom of the two side plates. Two partition plates are symmetrically constructed at the top of the arc-shaped diversion plate. Support seats are constructed at the bottom of both sides of the filter chamber. This aluminum molten metal impurity filtration device can absorb the impact force generated when the aluminum molten metal descends, avoiding damage to the filter components due to excessive impact, thus preventing disruption to normal use. It can also collect impurities in the aluminum molten metal for easy cleaning, saving time and effort, and is highly practical.

[0004] However, this solution also has the following problems: the aluminum alloy casting liquid is filtered through a filter screen, but the filter screen does not have a cleaning structure, which leads to the filter screen being blocked by impurities during filtration. As a result, the filter screen needs to be removed and cleaned, which is a cumbersome and inconvenient operation, reducing the filtration efficiency of the aluminum alloy casting liquid and having certain drawbacks.

[0005] To address the aforementioned problems, this utility model provides an aluminum alloy molten casting liquid impurity filtration device. Utility Model Content

[0006] The purpose of this invention is to provide an aluminum alloy molten casting impurity filtration device. This device helps the aluminum alloy molten casting liquid to pass smoothly through the filter plate for filtration, and facilitates the outflow of the filtered molten casting liquid. It is also easy to operate.

[0007] The technical solution of this utility model is as follows: an aluminum alloy casting liquid impurity filtration device, including a filter box, a feed hopper installed on one side of the top of the filter box, a filter plate installed inside the filter box, a movable plate that is driven by a drive mechanism to move longitudinally reciprocally above the filter plate, a number of conical blocks close to the upper side of the filter plate are installed at equal intervals on the bottom surface of the movable plate, and a discharge hopper is installed at the bottom of one side wall of the filter box.

[0008] Furthermore, the filter box has symmetrically installed horizontally arranged baffles on its wider inner side walls. Each baffle has a limiting groove on its inner side. The filter plate is horizontally slidably installed between the limiting grooves of the two baffles and can be horizontally pulled out from the filter box.

[0009] Furthermore, a sealing plate is installed after one end of the filter plate extends to the outside of the filter box. Connecting ears are symmetrically installed at both ends of the top of the sealing plate, and fastening bolts that are screwed into the filter box are transversely inserted on the connecting ears.

[0010] Furthermore, the top two ends of the baffle are symmetrically equipped with fixing ears, and a sliding rod is longitudinally installed between the inner sides of the two fixing ears located at the same end on the two baffles. The two ends of the movable plate are slidably connected to the sliding rods at the corresponding ends.

[0011] Furthermore, the drive mechanism includes a support rod mounted on the top of the movable plate, a fixed frame mounted on the top of the support rod, a horizontal groove opened on the top of the fixed frame, a rotating disk mounted on the top inner side of the filter box, and a fixed column located inside the groove mounted on one end of the bottom surface of the rotating disk.

[0012] Furthermore, a drive motor is installed on the top of the filter box, and the output shaft of the drive motor passes through the interior of the filter box and is connected to the top of the rotating disk.

[0013] Furthermore, movable columns are symmetrically installed at both ends of the fixed frame. The ends of the two movable columns away from the fixed frame extend and pass through the outside of the filter box, and the outer ring surface of the movable column is slidably connected to the side wall of the filter box.

[0014] Furthermore, a diversion hopper is horizontally installed between the narrower side walls of the filter box and below the filter plate. A servo motor is installed at one end of the bottom inner side of the diversion hopper. A threaded rod is horizontally installed on the output shaft of the servo motor. A movable block that is screwed to the threaded rod is horizontally slidably installed inside the bottom side of the diversion hopper. A scraper is installed at the bottom of the movable block.

[0015] Furthermore, the longitudinal dimension of the scraper is adapted to the dimension between the wider two side walls inside the filter box, and the bottom surface and the sides at both longitudinal ends of the scraper are in contact with the interior of the filter box.

[0016] Furthermore, the conical block at the bottom of the movable plate is in contact with the top surface of the filter plate; the discharge hopper is located at the bottom of the narrower side of the filter box.

[0017] Compared with the prior art, the present invention has the following advantages: 1. This device uses a rotating disc to drive a fixed column in a circular motion. Since the fixed column is located in the groove of the fixed frame, the circular motion of the fixed column causes the fixed frame to make longitudinal reciprocating linear motion in the filter box through the movable column. The fixed frame drives the movable plate to slide on the slide rod through the support rod. The conical block at the bottom of the movable plate moves back and forth accordingly. The conical block is in contact with the top of the filter plate and scrapes the impurities on the filter plate during the movement, preventing impurities from clogging the holes of the filter plate and ensuring that the aluminum alloy casting liquid can pass through the filter plate smoothly for filtration.

[0018] 2. After the servo motor starts, its output shaft drives the threaded rod to rotate, which causes the movable block to make a horizontal linear motion on the threaded rod. When the movable block drives the scraper to move, the scraper can scrape the molten casting liquid filtered at the bottom of the filter box, making it easier for the molten casting liquid to flow out of the discharge hopper. This makes the operation convenient and more practical. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a utility model Figure 1 Internal structure diagram; Figure 3 This is a utility model Figure 2 Partial structural layering diagram; Figure 4 This is a utility model Figure 3 Partial structural layering diagram; Figure 5 This is a utility model Figure 2 Partial structural diagram.

[0020] In the diagram: 1. Filter box; 2. Baffle; 201. Limiting groove; 3. Filter plate; 4. Fixing ear; 5. Slide rod; 6. Movable plate; 7. Conical block; 8. Support rod; 9. Fixing frame; 901. Slide groove; 10. Movable column; 11. Rotating disk; 12. Fixing column; 13. Feed hopper; 14. Discharge hopper; 15. Drive motor; 16. Diverting hopper; 17. Servo motor; 18. Threaded rod; 19. Movable block; 20. Scraper frame; 21. Sealing plate; 22. Connecting ear; 23. Fastening bolt. Detailed Implementation

[0021] To make the above-mentioned features and advantages of this utility model more easily understood, specific embodiments are described below in conjunction with the accompanying drawings, but this utility model is not limited thereto.

[0022] refer to Figures 1 to 5 A filter device for impurities in molten aluminum alloy includes a filter box 1. A feed hopper 13 is installed on one side of the top of the filter box 1. A filter plate 3, capable of being pulled out laterally, is installed inside the filter box 1. A movable plate 6, driven by a drive mechanism, is positioned above the filter plate 3 and moves longitudinally reciprocally. Several conical blocks 7, evenly spaced on the bottom surface of the movable plate, are attached to the upper side of the filter plate 3. A discharge hopper 14 is installed at the bottom of the narrower side of the filter box. Molten aluminum alloy is poured into the filter box 1 from the feed hopper 13. After being filtered by the filter plate 3, impurities remain above the filter plate 3. The filtered molten aluminum alloy flows downwards through a diversion hopper 16 and finally exits from the discharge hopper 14, thus achieving impurity filtration of the molten aluminum alloy.

[0023] In this embodiment, in order to achieve the lateral sliding fit between the filter plate 3 and the filter box 1 and to enable the filter box 1 to be pulled out laterally, laterally arranged baffles 2 are symmetrically installed on the wider side walls inside the filter box 1. Limiting grooves 201 are opened on the inner side of each baffle 2. The filter plate 3 is laterally slidably installed between the limiting grooves 201 of the two baffles 2 and can be pulled out laterally from the filter box 1.

[0024] Specifically, one end of the filter plate 3 extends to the outside of the filter box 1 and is fitted with a sealing plate 21. Connecting ears 22 are symmetrically installed at both ends of the top of the sealing plate 21, and fastening bolts 23, which are screwed onto the connecting ears 22, are threaded through them and connected to the filter box 1. The filter plate 3 is installed and removed by sliding within the limiting groove 201; the sealing plate 21 seals one end of the filter plate 3 with the filter box 1, and the fastening bolts 23 secure the filter plate 3 to the filter box 1. When cleaning or replacing the filter plate 3, the fastening bolts 23 are removed, and the sealing plate 21 is pulled outwards, allowing the filter plate 3 to slide out of the limiting groove 201. During installation, the filter plate 3 is inserted between the two limiting grooves 201, and then the sealing plate 21 is secured to the filter box 1 using the fastening bolts 23. The sealing plate 21 acts as a seal, preventing leakage of molten aluminum alloy from the installation point of the filter plate 3.

[0025] In this embodiment, in order to achieve longitudinal sliding of the movable plate 6, fixed ears 4 are symmetrically installed at both ends of the top of the baffle 2, and a slide rod 5 is longitudinally installed between the inner sides of the two fixed ears 4 located at the same end on the two baffles 2. The two ends of the movable plate 6 are respectively slidably connected to the outer ring surface of the slide rod 5 at the corresponding end.

[0026] In this embodiment, to drive the movable plate 6 to move longitudinally back and forth, the driving mechanism includes a support rod 8 installed on the top of the movable plate 6. A fixed frame 9 is installed on the top of the support rod 8, and a sliding groove 901 is laterally opened on the top of the fixed frame 9. A rotating disk 11 is installed on the top inner side of the filter box 1, and a fixed column 12 located inside the sliding groove 901 is installed at one end of the bottom surface of the rotating disk 11. A drive motor 15 is installed on the top of the filter box 1, and the output shaft of the drive motor 15 passes through the interior of the filter box 1 and is connected to the top of the rotating disk 11.

[0027] In this embodiment, movable columns 10 are symmetrically installed at both ends of the fixed frame 9. The ends of the two movable columns 10 away from the fixed frame 9 extend and pass through the outside of the filter box 1, and the outer ring surface of the movable column 10 is slidably connected to the side wall of the filter box 1.

[0028] After the drive motor 15 starts, the output shaft of the drive motor drives the rotating disk 11 to rotate. The rotation of the rotating disk 11 causes the fixed column 12 to make a circular motion. Since the fixed column 12 is located in the slide groove 901 of the fixed frame 9, the circular motion of the fixed column 12 causes the fixed frame 9 to make a longitudinal reciprocating linear motion in the filter box 1 through the movable column 10. The sliding of the movable column 10 in the filter box 1 plays a guiding role, ensuring that the fixed frame 9 makes a stable longitudinal reciprocating linear motion. The fixed frame 9 drives the movable plate 6 to slide on the slide rod 5 through the support rod 8. The conical block 7 at the bottom of the movable plate 6 moves back and forth accordingly. The conical block 7 is in contact with the top of the filter plate 3. During the movement, it scrapes the impurities on the filter plate 3 to prevent impurities from clogging the holes of the filter plate 3, ensuring that the aluminum alloy casting liquid can pass smoothly through the filter plate 3 for filtration.

[0029] In this embodiment, a diversion hopper 16 with a triangular longitudinal cross-section is horizontally installed between the narrower side walls of the filter box 1 and below the filter plate 3. A servo motor 17 is installed at one end of the bottom inner side of the diversion hopper 16. A threaded rod 18 is horizontally installed on the output shaft of the servo motor 17. A movable block 19 that is screwed to the threaded rod 18 is horizontally slidably installed inside the bottom side of the diversion hopper 16. A scraper 20 is installed at the bottom of the movable block 19.

[0030] After the servo motor 17 is started, its output shaft drives the threaded rod 18 to rotate. Since the movable block 19 is installed on the threaded rod 18 and located inside the bottom side of the diversion hopper 16, the rotation of the threaded rod 18 will cause the movable block 19 to make a horizontal linear movement on the threaded rod 18. The movable block 19 drives the scraper 20 to move. The scraper 20 can scrape the molten casting liquid filtered at the bottom of the filter box 1, so that it can flow out from the discharge hopper 14.

[0031] In this embodiment, the longitudinal dimension of the scraping frame 20 is adapted to the dimension between the wider side walls inside the filter box 1, and the bottom surface and the sides at both longitudinal ends of the scraping frame 20 are in contact with the inside of the filter box 1, so that the scraping frame 20 can scrape the inner side wall and bottom of the filter box 1 completely during the movement.

[0032] Working principle: When using this device, molten aluminum alloy is poured into the filter box 1 from the feed hopper 13. After being filtered by the filter plate 3, impurities remain above the filter plate 3, while the filtered molten aluminum alloy flows downward through the diversion hopper 16 and finally flows out from the discharge hopper 14, thus achieving the filtration of impurities in the molten aluminum alloy. When it is necessary to clean or replace the filter plate 3, loosen the fastening bolts 23 and pull the sealing plate 21 outward, so that the filter plate 3 slides out of the limiting groove 201. During installation, insert both ends of the filter plate 3 into the limiting groove 201, and then fix the sealing plate 21 to the filter box 1 with the fastening bolts 23. After the drive motor 15 starts, its output shaft drives the rotating disk 11 to rotate. The rotation of the rotating disk 11 drives the fixed column 12 to make a circular motion. Since the fixed column 12 is located in the slide groove 901 of the fixed frame 9, the circular motion of the fixed column 12 causes the fixed frame 9 to make a longitudinal reciprocating linear motion in the filter box 1 through the movable column 10. The sliding of the movable column 10 in the filter box 1 plays a guiding role, ensuring that the fixed frame 9 makes a stable longitudinal reciprocating linear motion. The fixed frame 9 drives the movable plate 6 to slide on the slide rod 5 through the support rod 8. The conical block 7 at the bottom of the movable plate 6 moves back and forth accordingly. The conical block 7 is in contact with the top of the filter plate 3. During the movement, it scrapes the impurities on the filter plate 3 to prevent impurities from clogging the holes of the filter plate 3, ensuring that the aluminum alloy casting liquid can pass smoothly through the filter plate 3 for filtration. After the servo motor 17 is started, its output shaft drives the threaded rod 18 to rotate. Since the movable block 19 is installed on the threaded rod 18 and located inside the bottom side of the diversion hopper 16, the rotation of the threaded rod 18 will cause the movable block 19 to make linear motion on the threaded rod 18. The movable block 19 drives the scraper 20 to move. The scraper 20 can scrape the molten casting liquid filtered at the bottom of the filter box 1, so that it can flow out from the discharge hopper 14.

[0033] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0034] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0035] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws) or a non-detachable fixed connection (e.g., riveting or welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0036] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0037] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0038] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A filter device for impurities in molten aluminum alloy, comprising a filter box (1), characterized in that, A feed hopper (13) is installed on one side of the top of the filter box (1). A filter plate (3) is installed inside the filter box (1). A movable plate (6) driven by a drive mechanism to move longitudinally back and forth is set above the filter plate (3). Several conical blocks (7) close to the upper side of the filter plate (3) are installed at equal intervals on the bottom surface of the movable plate. A discharge hopper (14) is installed at the bottom of one side wall of the filter box.

2. The aluminum alloy molten casting liquid impurity filtration device according to claim 1, characterized in that, The filter box (1) has horizontally arranged baffles (2) symmetrically installed on the wider inner side walls. Each baffle (2) has a limiting groove (201) on its inner side. The filter plate (3) is horizontally slidably installed between the limiting grooves (201) of the two baffles (2) and can be horizontally pulled out from the filter box (1).

3. The aluminum alloy molten casting impurity filtration device according to claim 1 or 2, characterized in that, After one end of the filter plate (3) extends to the outside of the filter box (1), a sealing plate (21) is installed. Connecting ears (22) are symmetrically installed at both ends of the top of the sealing plate (21). Fastening bolts (23) that are screwed into the filter box (1) are transversely inserted on the connecting ears (22).

4. The aluminum alloy molten casting impurity filtration device according to claim 2, characterized in that, The top two ends of the baffle (2) are symmetrically equipped with fixing ears (4), and the inner sides of the two fixing ears (4) located at the same end of the two baffles (2) are longitudinally installed with slide rods (5), and the two ends of the movable plate (6) are slidably connected to the slide rods (5) at the corresponding ends.

5. A filter device for impurities in molten aluminum alloy as described in claim 1, 2, or 4, characterized in that, The drive mechanism includes a support rod (8) installed on the top of the movable plate (6), a fixed frame (9) is installed on the top of the support rod (8), a groove (901) is opened horizontally on the top of the fixed frame (9), a rotating disk (11) is installed on the top of the inner side of the filter box (1), and a fixed column (12) located inside the groove (901) is installed at one end of the bottom surface of the rotating disk (11).

6. The aluminum alloy molten casting liquid impurity filtration device according to claim 5, characterized in that, A drive motor (15) is installed on the top of the filter box (1), and the output shaft of the drive motor (15) passes through the interior of the filter box (1) and is connected to the top of the rotating disk (11).

7. The aluminum alloy molten casting liquid impurity filtration device according to claim 5, characterized in that, The fixed frame (9) has movable columns (10) symmetrically installed at both ends in the longitudinal direction. The ends of the two movable columns (10) away from the fixed frame (9) extend and pass through the outside of the filter box (1), and the outer ring surface of the movable column (10) is slidably connected to the side wall of the filter box (1).

8. A filter device for impurities in molten aluminum alloy according to claim 1, 2, 4, 6 or 7, characterized in that, A diversion hopper (16) is horizontally installed between the narrow side walls of the filter box (1) and below the filter plate (3). A servo motor (17) is installed at one end of the bottom inner side of the diversion hopper (16). A threaded rod (18) is horizontally installed on the output shaft of the servo motor (17). A movable block (19) that is screwed to the threaded rod (18) is horizontally slidably installed inside the bottom side of the diversion hopper (16). A scraper (20) is installed at the bottom of the movable block (19).

9. The aluminum alloy molten casting liquid impurity filtration device according to claim 8, characterized in that, The longitudinal dimension of the scraper (20) is adapted to the dimension between the wider side walls inside the filter box (1), and the bottom surface and the sides at both longitudinal ends of the scraper (20) are in contact with the interior of the filter box (1).

10. The aluminum alloy molten casting impurity filtration device according to claim 1, characterized in that, The conical block (7) at the bottom of the movable plate (6) is in contact with the top surface of the filter plate (3); the discharge hopper (14) is located at the bottom of the narrower side of the filter box (1).

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