Molten metal filtering and purifying device for casting

Abstract

The utility model discloses a molten metal filtering and purifying device for casting, which is applied to the field of casting and comprises a filtering box, the top of the filtering box is communicated with a feeding hopper, and a motor is bolted on the surface of the filtering box; the motor rotates to enable the crankshaft to drive the rotating cylinder to rotate, the rotating cylinder rotates to drive the supporting rod to enable the transmission frame to move up and down in a reciprocating mode, the transmission frame moves up and down in a reciprocating mode to enable the filter screen to vibrate, and due to the inclined design of the filter screen, filter residues can fall into the collecting box to be cleaned, and the purpose of conveniently cleaning the filter residues can be achieved. By means of the mode that the cover plate is opened, the pull plate is moved to enable the pull rod to drive the clamping rod to move, the clamping rod moves to enable the clamping rod to be disengaged from the clamping hole, and the filter screen is pulled out to be replaced, the purpose of conveniently replacing the filter screen can be achieved, the workload is reduced, and the belt replacing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of casting, and in particular to a metal molten casting filtration and purification device. Background Technology

[0002] A search of Chinese patents revealed publication number CN209502894U, which discloses a molten metal filtration device. The device includes a pouring cup, a sprue, a runner, and a cavity. At least two main filter layers are arranged parallel to each other from top to bottom within the sprue. The density of these main filter layers decreases from the top to the bottom of the sprue. Each main filter layer is a sheet-like structure adapted to the cross-section of the sprue. The circumference of each main filter layer consists of a fitted section and a free section. The fitted section is fitted to the sidewall of the sprue at a corresponding position, and the free section is rolled up towards the pouring cup, forming a gap with the corresponding sidewall of the sprue. The beneficial effect of this invention is that, while maintaining the shortest possible pouring path, it solves the problems of stagnation and flow obstruction in the initial stage of pouring, ensuring smooth pouring while preventing slag buildup. The arrangement of several filter layers on the sprue, with increasing density, avoids excessive impact and obstruction on the flow rate of the molten metal.

[0003] Existing filtration and purification devices are inconvenient for cleaning filter residue. Generally, these devices generate a large amount of filter residue during the filtration of molten metal. This residue needs to be cleaned regularly, but typically, the device needs to be opened, and tools used to scrape the residue off the filter screen. This process is cumbersome, increases maintenance, and reduces cleaning efficiency. Replacing the filter screen is also inconvenient, as it is usually fixed with multiple bolts. Replacing it requires tools for disassembly and reassembly, which is tedious, increases workload, and reduces replacement efficiency. To address these problems, we propose a filtration and purification device for molten metal in casting. Utility Model Content

[0004] The purpose of this invention is to provide a metal molten casting filtration and purification device, which has the advantages of being easy to clean filter residue and easy to replace filter screen.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a metal molten casting filtration and purification device, comprising a filter box, a feed hopper connected to the top of the filter box, a motor bolted to the surface of the filter box, the output end of the motor extending into the interior of the filter box and connected to a crankshaft via a coupling, and the other end of the crankshaft being rotatably connected to the inner wall of the filter box, a rotating cylinder fixedly sleeved on the surface of the crankshaft, a support rod bolted to the surface of the rotating cylinder, a transmission frame hinged to the other end of the support rod, and the transmission frame being slidably connected to the inner wall of the filter box, a collection box bolted to the inner wall of the filter box, a fixed frame hinged to the top of the collection box, and a connecting mechanism provided between the fixed frame and the transmission frame.

[0006] By adopting the above technical solution, the crankshaft is driven to rotate the rotating cylinder by the rotation of the motor. The rotation of the rotating cylinder drives the support rod to move the transmission frame up and down reciprocally. The up and down reciprocating movement of the transmission frame causes the filter screen to vibrate. Due to the inclined design of the filter screen, the filter residue will fall into the collection box for cleaning. This method can facilitate the cleaning of filter residue, reduce maintenance, and improve cleaning efficiency.

[0007] The present invention is further configured such that: a filter screen is slidably connected to the inner wall of the fixed frame; a snap-fit ​​rod is slidably sleeved on the inner wall of the filter screen; a snap-fit ​​hole is provided on the inner wall of the fixed frame, and the snap-fit ​​rod snaps into the snap-fit ​​hole; a spring is provided between the snap-fit ​​rod and the inner wall of the filter screen; a handle is bolted to the surface of the filter screen; a pull plate is slidably connected to the inner wall of the handle; pull rods are hinged to both ends of the pull plate, and the other end of the pull rod is hinged to the surface of the snap-fit ​​rod.

[0008] By adopting the above technical solution, by opening the cover plate, moving the pull plate to move the pull rod to drive the locking rod, and moving the locking rod to disengage it from the locking hole, the filter screen can be pulled out for replacement. This method can facilitate the replacement of the filter screen, reduce workload, and improve the efficiency of filter replacement.

[0009] The present invention is further configured such that: the connecting mechanism includes a slide groove, the slide groove is formed on the surface of the fixed frame, a slider is slidably connected to the inner wall of the slide groove, and the slider is rotatably connected to the inner wall of the transmission frame.

[0010] By adopting the above technical solution and setting a connecting mechanism, the filter screen can vibrate easily, making it convenient to use.

[0011] The present invention is further configured such that a cover plate is bolted to the surface of the filter box.

[0012] By adopting the above technical solution and setting a cover plate, it is easy to replace the filter screen and clean the filter residue.

[0013] The present invention is further configured such that: a support plate is bolted to the inner wall of the filter box, and the support plate is rotatably sleeved with the surface of the crankshaft.

[0014] By adopting the above technical solution, the crankshaft is supported by a support plate, thereby improving stability.

[0015] The present invention is further configured such that a discharge valve is connected to the surface of the filter box.

[0016] By adopting the above technical solution, a discharge valve is installed to facilitate material discharge.

[0017] The present invention is further configured such that a drain hole is provided on the surface of the collection box.

[0018] By adopting the above technical solution, the molten metal can be easily discharged by setting a drain hole.

[0019] The present invention is further configured such that one end of the snap-fit ​​rod is wedge-shaped.

[0020] By adopting the above technical solution, one end of the snap-fit ​​rod is wedge-shaped, which facilitates the fixing of the filter screen and makes installation convenient.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. This utility model uses a motor to rotate a crankshaft that drives a rotating cylinder to rotate. The rotating cylinder drives a support rod that causes a transmission frame to move up and down repeatedly. The up and down movement of the transmission frame causes the filter screen to vibrate. Due to the inclined design of the filter screen, the filter residue falls into a collection box for cleaning. This method facilitates the cleaning of the filter residue, reduces maintenance, and improves cleaning efficiency.

[0023] 2. This utility model achieves the purpose of convenient filter replacement by opening the cover plate, moving the pull plate to move the pull rod to drive the locking rod, and moving the locking rod to disengage the locking rod from the locking hole, thereby pulling out the filter screen for replacement. This reduces the workload and improves the efficiency of filter replacement. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural view of the present invention;

[0025] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0026] Figure 3 This is a side sectional view of the structure of this utility model;

[0027] Figure 4 This is a top sectional view of the structure of this utility model;

[0028] Figure 5 This is a utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0029] Reference numerals: 1. Filter box; 2. Feed hopper; 3. Motor; 4. Crankshaft; 5. Rotating cylinder; 6. Support rod; 7. Transmission frame; 8. Collection box; 9. Fixing frame; 10. Connecting mechanism; 11. Filter screen; 12. Clip rod; 13. Clip hole; 14. Spring; 15. Handle; 16. Pull plate; 17. Pull rod; 18. Slide groove; 19. Sliding block; 20. Cover plate; 21. Support plate; 22. Discharge valve; 23. Drain hole. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Example 1:

[0032] refer to Figure 1 , Figure 2 and Figure 3 A metal molten casting filtration and purification device includes a filter box 1, a feed hopper 2 connected to the top of the filter box 1, a motor 3 bolted to the surface of the filter box 1, the output end of the motor 3 extending into the interior of the filter box 1 and connected to a crankshaft 4 via a coupling, and the other end of the crankshaft 4 rotatably connected to the inner wall of the filter box 1, a rotating cylinder 5 fixedly sleeved on the surface of the crankshaft 4, a support rod 6 bolted to the surface of the rotating cylinder 5, a transmission frame 7 hinged to the other end of the support rod 6, and the transmission frame 7 slidably connected to the inner wall of the filter box 1, a collection box 8 bolted to the inner wall of the filter box 1, a fixed frame 9 hinged to the top of the collection box 8, and a connecting mechanism 10 provided between the fixed frame 9 and the transmission frame 7. The rotation of the motor 3 causes the crankshaft 4 to drive the rotating cylinder 5 to rotate, the rotation of the rotating cylinder 5 causes the support rod 6 to move the transmission frame 7 up and down reciprocally, and the up and down reciprocating movement of the transmission frame 7 causes the filter screen 11 to vibrate. Due to the inclined design of the filter screen 11, the filter residue falls into the collection box 8 for cleaning, which can facilitate the cleaning of filter residue, reduce maintenance, and improve cleaning efficiency.

[0033] refer to Figure 4 The connecting mechanism 10 includes a slide groove 18, which is formed on the surface of the fixed frame 9. A slider 19 is slidably connected to the inner wall of the slide groove 18, and the slider 19 is rotatably connected to the inner wall of the transmission frame 7. By setting the connecting mechanism 10, the filter screen 11 can vibrate, making it convenient to use.

[0034] refer to Figure 3 A support plate 21 is bolted to the inner wall of the filter box 1, and the support plate 21 is rotatably sleeved with the surface of the crankshaft 4. By setting the support plate 21, the crankshaft 4 is supported, thereby improving stability.

[0035] refer to Figure 2 and Figure 4The surface of the collection box 8 is provided with a drain hole 23, which facilitates the discharge of molten metal.

[0036] Example 2:

[0037] refer to Figure 2 , Figure 4 and Figure 5 A filter screen 11 is slidably connected to the inner wall of the fixed frame 9. A snap-fit ​​rod 12 is slidably sleeved on the inner wall of the filter screen 11. A snap-fit ​​hole 13 is opened on the inner wall of the fixed frame 9, and the snap-fit ​​rod 12 snaps into the snap-fit ​​hole 13. A spring 14 is provided between the snap-fit ​​rod 12 and the inner wall of the filter screen 11. A handle 15 is bolted to the surface of the filter screen 11. A pull plate 16 is slidably connected to the inner wall of the handle 15. Pull rods 17 are hinged to both ends of the pull plate 16, and the other end of the pull rod 17 is hinged to the surface of the snap-fit ​​rod 12. By opening the cover plate 20 and moving the pull plate 16, the pull rod 17 drives the snap-fit ​​rod 12 to move. The movement of the snap-fit ​​rod 12 disengages from the snap-fit ​​hole 13, allowing the filter screen 11 to be pulled out for replacement. This method facilitates the replacement of the filter screen 11, reduces workload, and improves the efficiency of replacement belts.

[0038] refer to Figure 1 and Figure 2 A cover plate 20 is bolted to the surface of the filter box 1. The cover plate 20 facilitates the replacement of the filter screen 11 and the cleaning of the filter residue.

[0039] refer to Figure 2 The surface of the filter box 1 is connected to a discharge valve 22, which facilitates material discharge.

[0040] refer to Figure 5 One end of the locking rod 12 is wedge-shaped. By setting one end of the locking rod 12 to be wedge-shaped, it is easy to fix the filter screen 11 and facilitate installation.

[0041] Brief description of the operation: When it is necessary to clean the filter cake, the motor 3 rotates, driving the crankshaft 4 to rotate. The crankshaft 4 rotates, driving the rotating cylinder 5 to rotate. The rotating cylinder 5 rotates, causing the support rod 6 to move back and forth. The support rod 6 moves back and forth, driving the transmission frame 7 to move back and forth. The transmission frame 7 moves back and forth, driving the fixed frame 9 to move back and forth, causing it to vibrate. The vibration of the fixed frame 9 causes the filter screen 11 to vibrate. Since the filter screen 11 is tilted, the vibration of the filter screen 11 causes the filter cake to fall into the collection box 8. The cleaning is then complete. When the collection box 8 is full of filter cake, the cover 20 is opened to remove the filter cake. The filter residue in the collection box 8 is cleaned to facilitate its removal. The cover plate 20 is opened, and the pull plate 16 is pulled. The pull plate 16 moves, which in turn moves the pull rod 17. The pull rod 17 moves, which in turn moves the locking rod 12, causing the locking rod 12 to disengage from the locking hole 13. The filter screen 11 is then pulled out of the fixing frame 9, and a new filter screen 11 is installed in the fixing frame 9. The locking rod 12 engages with the locking hole 13 under the action of the spring 14, fixing the filter screen 11. The cover plate 20 is then installed, completing the replacement and facilitating the replacement of the filter screen 11.

[0042] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A metal molten casting filtration and purification device, comprising a filter box (1), characterized in that, The top of the filter box (1) is connected to a feed hopper (2). A motor (3) is bolted to the surface of the filter box (1). The output end of the motor (3) extends into the interior of the filter box (1) and is connected to a crankshaft (4) via a coupling. The other end of the crankshaft (4) is rotatably connected to the inner wall of the filter box (1). A rotating cylinder (5) is fixedly sleeved on the surface of the crankshaft (4). A support rod (6) is bolted to the surface of the rotating cylinder (5). A transmission frame (7) is hinged to the other end of the support rod (6). The transmission frame (7) is slidably connected to the inner wall of the filter box (1). A collection box (8) is bolted to the inner wall of the filter box (1). A fixed frame (9) is hinged to the top of the collection box (8). A connecting mechanism (10) is provided between the fixed frame (9) and the transmission frame (7).

2. The metal molten casting filtration and purification device according to claim 1, characterized in that, A filter screen (11) is slidably connected to the inner wall of the fixed frame (9). A snap-fit ​​rod (12) is slidably sleeved on the inner wall of the filter screen (11). A snap-fit ​​hole (13) is opened on the inner wall of the fixed frame (9), and the snap-fit ​​rod (12) snaps into the snap-fit ​​hole (13). A spring (14) is provided between the snap-fit ​​rod (12) and the inner wall of the filter screen (11). A handle (15) is bolted to the surface of the filter screen (11). A pull plate (16) is slidably connected to the inner wall of the handle (15). A pull rod (17) is hinged to both ends of the pull plate (16), and the other end of the pull rod (17) is hinged to the surface of the snap-fit ​​rod (12).

3. The metal molten casting filtration and purification device according to claim 1, characterized in that, The connecting mechanism (10) includes a slide groove (18), which is formed on the surface of the fixed frame (9). A slider (19) is slidably connected to the inner wall of the slide groove (18), and the slider (19) is rotatably connected to the inner wall of the transmission frame (7).

4. The metal molten casting filtration and purification device according to claim 1, characterized in that, A cover plate (20) is bolted to the surface of the filter box (1).

5. The metal molten casting filtration and purification device according to claim 1, characterized in that, The inner wall of the filter box (1) is bolted with a support plate (21), and the support plate (21) is rotatably sleeved with the surface of the crankshaft (4).

6. The metal molten casting filtration and purification device according to claim 1, characterized in that, The surface of the filter box (1) is connected to a discharge valve (22).

7. The metal molten casting filtration and purification device according to claim 1, characterized in that, The surface of the collection box (8) is provided with a drain hole (23).

8. A metal molten casting filtration and purification device according to claim 2, characterized in that, One end of the snap-fit ​​rod (12) is wedge-shaped.

Images