Multi-filtering device for turning liquid
By designing a multi-stage filter plate and magnetic rod assembly, the problems of clogging in the turning fluid filtration device and removal of magnetic particles are solved, achieving efficient and convenient impurity cleaning and filtration effects, and avoiding tool damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU PRECISION HARDWARE CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-12
AI Technical Summary
Existing turning fluid filtration devices are easily clogged by impurities and cannot be cleaned in a timely manner. They also cannot effectively remove magnetic particles such as iron filings, resulting in a decrease in filtration efficiency and posing a risk of damaging cutting tools.
A multi-stage filtration device for turning fluid was designed, which uses multi-stage filter plates and magnetic rod adsorption components. The device achieves automatic cleaning of impurities and adsorption of magnetic particles by driving a scraper and bevel gear mechanism through a motor. The combination of threaded sleeve and screw structure facilitates the disassembly and cleaning of the adsorption components.
It achieves efficient removal of impurities from machining fluid, prevents clogging, ensures filtration effect, avoids tool damage, simplifies the cleaning process, and facilitates equipment maintenance.
Smart Images

Figure CN224223380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining fluid technology, specifically to a multi-stage filtration device for machining fluid. Background Technology
[0002] Turning fluid is an industrial liquid used in metal turning and grinding processes to cool and lubricate cutting tools and workpieces. It is scientifically formulated with various high-performance additives, possessing excellent cooling, lubrication, rust prevention, degreasing and cleaning properties, corrosion resistance, and easy dilution. It overcomes the shortcomings of traditional soap-based emulsions, such as odor in summer, difficulty in dilution in winter, and poor rust prevention. It also has no adverse effects on lathe paint and is suitable for cutting and grinding ferrous metals. As a leading grinding product, its performance indicators are superior to saponified oils. It features excellent cooling, cleaning, and rust prevention properties, and is non-toxic, odorless, non-corrosive to humans and equipment, and environmentally friendly. After use, turning fluid needs to be filtered to remove impurities, facilitating recycling and preventing waste.
[0003] A turning fluid filtration device, disclosed in publication CN 210360570 U, is installed externally on a vertical lathe and connected to its drainage channel. It comprises a rectangular housing with a partition plate dividing the space into several chambers. The chambers flow in a unidirectional manner, and filter screens are installed between any connected chambers. This external turning fluid filtration device does not occupy valuable space on the vertical lathe, offers superior filtration performance, and facilitates external maintenance. It features a stepped filtration flow, with multiple chambers sharing the responsibility of intercepting turning chips, increasing the interception capacity and extending the cleaning and maintenance cycle, eliminating the need for frequent cleaning. The clever and reasonable division of the rectangular housing chambers facilitates unidirectional flow, meeting the requirements of gradient filtration, and the filter screen design further enhances the filtration device.
[0004] However, the above-mentioned device still has some shortcomings in use. The filter element is easily clogged by impurities and cannot be cleaned quickly in time, resulting in a decrease in filtration effect. At the same time, the magnetic particles such as iron filings that are common in turning fluid cannot be specifically adsorbed and removed by traditional filtration methods, which may result in the filtered turning fluid still containing the potential to damage the cutting tools. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a multi-stage filtration device for turning fluid, which solves the problem that the filter element is easily clogged by impurities and cannot be cleaned quickly in a timely manner, resulting in a decrease in filtration effect. At the same time, the traditional filtration method cannot specifically adsorb and remove the magnetic particles such as iron filings that are commonly present in turning fluid, resulting in the possibility that the filtered turning fluid may still contain the potential to damage the cutting tools.
[0006] This utility model provides the following technical solution: a multi-stage filtration device for turning fluid, including a filter box, three filter plates are fixedly connected between the inner walls of the filter box, a lead screw is rotatably installed on one side of the filter box, a threaded sleeve is threaded onto the surface of the lead screw, a telescopic rod is fixedly installed on the other side of the filter box, a fixing plate is fixedly connected to the top of the threaded sleeve and the telescopic rod, three sets of connecting rods are fixedly connected to the lower surfaces of the two fixing plates, and a scraper is fixedly connected to the bottom end of each set of connecting rods;
[0007] A support frame is fixedly installed on the upper part of the filter box. A rotating rod is rotatably connected to the lower surface of the support frame. A mounting block is fixedly connected to the bottom end of the rotating rod. An adsorption component is installed on the mounting block. A first motor is fixedly connected to the upper surface of the support frame. The output end of the first motor passes through the support frame and is fixedly connected to the rotating rod.
[0008] Preferred technical solution 1: The adsorption component includes a long plate, a plurality of magnetic rods are fixedly connected to the lower surface of the long plate, and an installation rod is fixedly connected to the upper surface of the long plate.
[0009] Preferred technical solution 2: The side of the mounting block is provided with a mounting groove that matches the mounting rod. The other side of the mounting block is rotatably connected to a screw. A connecting plate is threaded onto the surface of the screw. A row of locking rods is fixedly connected to the surface of the connecting plate. Both the mounting rod and the mounting block are provided with a row of locking grooves that match the locking rods. A limiting rod is fixedly connected to the surface of the mounting block. A through hole is provided on the surface of the connecting plate. The connecting plate is slidably sleeved on the limiting rod through the through hole.
[0010] Preferred technical solution 3: A second motor is fixedly connected to the side of the filter box, a first bevel gear is fixedly connected to the output end of the second motor, and a second bevel gear is fixedly sleeved on the surface of the lead screw, with the first bevel gear and the second bevel gear meshing with each other.
[0011] Preferred technical solution four: The diameter of the filter holes of the three filter plates decreases from left to right, and the surfaces of the three scrapers are all provided with inclined surfaces, and the three scrapers are respectively attached to the three filter plates.
[0012] Preferred technical solution five: A limiting plate is fixedly connected to the surface of the mounting rod, and a limiting groove matching the limiting plate is opened inside the mounting groove.
[0013] Compared with the prior art, this utility model provides a multi-stage filtration device for machining fluid, which has the following beneficial effects: In use, the machining fluid to be filtered enters the space between the filter box and the leftmost filter plate, and then passes through three filter plates to filter the fluid, blocking and removing impurities. Simultaneously, the rotation of the first motor drives the rotating rod and the adsorption assembly to rotate, thereby adsorbing small magnetic impurities such as iron filings in the filtered machining fluid through the magnetic rod on the adsorption assembly, resulting in better filtration. After filtration, larger impurities fall onto the scraper due to gravity, while smaller particles are adsorbed onto the filter plates. At this point, the rotation of the second motor drives the first and second bevel gears and the lead screw to rotate, thereby driving the threaded sleeve. The fixed plate rises, causing three scrapers to rise as well. These scrapers remove impurities adsorbed on the filter plates and move to the top of the filter box, thus cleaning the impurities on the scrapers quickly and easily. This ensures the filtration effect of the filter plates and prevents clogging. When cleaning the adsorption assembly is needed, rotating the screw moves the connecting plate, causing the locking rod to disengage from the mounting rod and mounting block's slot, releasing the lock between the mounting block and the adsorption assembly. The adsorption assembly can then be disassembled for cleaning. This device effectively removes impurities from machining fluid through multiple filtration methods and magnetic adsorption, while also quickly cleaning the filter plates and adsorption assembly, ensuring the subsequent filtration effect of the machining fluid and making it easy to use. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a cross-sectional view of the internal structure of the filter box of this utility model;
[0016] Figure 3 For the present utility model Figure 2 Enlarged view of the structure of A in the middle;
[0017] Figure 4 This is an exploded view of the support frame and adsorption assembly structure of this utility model;
[0018] Figure 5 For the present utility model Figure 4 Enlarged view of the structure of B in the middle.
[0019] In the diagram: 1. Filter box; 2. Filter plate; 3. Lead screw; 4. Threaded sleeve; 5. Telescopic rod; 6. Fixing plate; 7. Connecting rod; 8. Scraper; 9. Support frame; 10. Rotating rod; 11. Mounting block; 12. Long plate; 13. Magnetic rod; 14. Mounting rod; 15. First motor; 16. Screw; 17. Connecting plate; 18. Locking rod; 19. Locking groove; 20. Limiting rod; 21. Second motor; 22. First bevel gear; 23. Second bevel gear; 24. Limiting plate; 25. Limiting groove; 26. Mounting groove. Detailed Implementation
[0020] Please see Figure 1-5 ,
[0021] Example 1: A multi-stage filtration device for machining fluid includes a filter box 1, three filter plates 2 are fixedly connected between the inner walls of the filter box 1, a lead screw 3 is rotatably installed on one side of the filter box 1, a threaded sleeve 4 is threaded onto the surface of the lead screw 3, a telescopic rod 5 is fixedly installed on the other side of the filter box 1, a fixing plate 6 is fixedly connected to the top of both the threaded sleeve 4 and the telescopic rod 5, three sets of connecting rods 7 are fixedly connected to the lower surfaces of both fixing plates 6, and a scraper 8 is fixedly connected to the bottom of each set of connecting rods 7.
[0022] A support frame 9 is fixedly installed on the upper part of the filter box 1. A rotating rod 10 is rotatably connected to the lower surface of the support frame 9. An installation block 11 is fixedly connected to the bottom end of the rotating rod 10. An adsorption component is installed on the installation block 11. A first motor 15 is fixedly connected to the upper surface of the support frame 9. The output end of the first motor 15 passes through the connected support frame 9 and is fixedly connected to the rotating rod 10.
[0023] Example 2: The difference between this example and Example 1 is that the adsorption component includes a long plate 12, a plurality of magnetic rods 13 are fixedly connected to the lower surface of the long plate 12, and an installation rod 14 is fixedly connected to the upper surface of the long plate 12. The magnetic rods 13 can adsorb some iron filings and magnetic impurities in the machining fluid.
[0024] Example 3: The difference between this example and Example 1 is that the mounting block 11 has a mounting groove 26 on its side that matches the mounting rod 14. A screw 16 is rotatably connected to the other side of the mounting block 11. A connecting plate 17 is threaded onto the surface of the screw 16. A row of locking rods 18 is fixedly connected to the surface of the connecting plate 17. A row of locking grooves 19 matching the locking rods 18 are opened on the surfaces of both the mounting rod 14 and the mounting block 11. A limiting rod 20 is fixedly connected to the surface of the mounting block 11. A through hole is opened on the surface of the connecting plate 17. The connecting plate 17 is slidably sleeved on the limiting rod 20 through the through hole, which facilitates the quick installation and disassembly of the adsorption assembly and makes it easy to clean.
[0025] Example 4: The difference between this example and Example 1 is that a second motor 21 is fixedly connected to the side of the filter box 1, a first bevel gear 22 is fixedly connected to the output end of the second motor 21, and a second bevel gear 23 is fixedly sleeved on the surface of the lead screw 3. The first bevel gear 22 and the second bevel gear 23 mesh with each other. The rotation of the second motor 21 can drive the scraper 8 to rise, lift the filtered impurities, and scrape off the impurities adsorbed on the filter plate 2.
[0026] Example 5: The difference between this example and Example 1 is that the diameter of the filter holes of the three filter plates 2 decreases from left to right, and the surfaces of the three scrapers 8 are all provided with inclined surfaces, and the three scrapers 8 are respectively attached to the three filter plates 2.
[0027] Example 6: The difference between this example and Example 1 is that the surface of the mounting rod 14 is fixedly connected to the limiting plate 24, and the inside of the mounting groove 26 is provided with a limiting groove 25 that matches the limiting plate 24, which facilitates the installation of the adsorption component and allows for preliminary positioning.
[0028] In summary, this multi-stage filtration device for machining fluid works as follows: The machining fluid to be filtered enters the space between the filter box 1 and the leftmost filter plate 2. It then passes through three filter plates 2, filtering out impurities. Simultaneously, the rotation of the first motor 15 drives the rotating rod 10 and the adsorption assembly to rotate. The magnetic rod 13 on the adsorption assembly then adsorbs small magnetic impurities such as iron filings from the filtered machining fluid, improving the filtration effect. After filtration, larger impurities fall onto the scraper 8 due to gravity, while smaller particles adhere to the filter plates 2. At this point, the rotation of the second motor 21 drives the first bevel gear 22, the second bevel gear 23, and the lead screw 3 to rotate, causing the threaded sleeve 4 and the fixed plate 6 to rise, thereby lifting... Three scrapers 8 rise to scrape away impurities adsorbed on the filter plate 2 and move to the upper part of the filter box 1, thus cleaning the impurities on the scrapers 8 quickly and easily, ensuring the filtration effect of the filter plate 2 and preventing clogging. When it is necessary to clean the adsorption component, the connecting plate 17 is moved by rotating the screw 16, thereby causing the locking rod 18 to disengage from the mounting rod 14 and the mounting block 11's slot 19, thereby releasing the lock between the mounting block 11 and the adsorption component. Then the adsorption component can be disassembled for cleaning, which is convenient and quick. When in use, this device can effectively remove impurities in the machining fluid through multiple filtration methods and magnetic adsorption, and can quickly clean the filter plate 2 and the adsorption component, ensuring the subsequent filtration effect of the machining fluid and making it easy to use.
Claims
1. A multi-stage filtration device for machining fluid, comprising a filter box (1), characterized in that: Three filter plates (2) are fixedly connected between the inner walls of the filter box (1). A lead screw (3) is rotatably installed on one side of the filter box (1). A threaded sleeve (4) is threaded onto the surface of the lead screw (3). A telescopic rod (5) is fixedly installed on the other side of the filter box (1). A fixing plate (6) is fixedly connected to the top of both the threaded sleeve (4) and the telescopic rod (5). Three sets of connecting rods (7) are fixedly connected to the lower surfaces of the two fixing plates (6). A scraper (8) is fixedly connected to the bottom of each set of connecting rods (7). A support frame (9) is fixedly installed on the upper part of the filter box (1). A rotating rod (10) is rotatably connected to the lower surface of the support frame (9). An installation block (11) is fixedly connected to the bottom end of the rotating rod (10). An adsorption component is installed on the installation block (11). A first motor (15) is fixedly connected to the upper surface of the support frame (9). The output end of the first motor (15) passes through the support frame (9) and is fixedly connected to the rotating rod (10).
2. The multi-stage filtration device for turning fluid according to claim 1, characterized in that: The adsorption assembly includes a long plate (12), a plurality of magnetic rods (13) are fixedly connected to the lower surface of the long plate (12), and an installation rod (14) is fixedly connected to the upper surface of the long plate (12).
3. The multi-stage filtration device for turning fluid according to claim 2, characterized in that: The mounting block (11) has a mounting groove (26) on one side that matches the mounting rod (14). The other side of the mounting block (11) is rotatably connected to a screw (16). A connecting plate (17) is threaded onto the surface of the screw (16). A row of locking rods (18) is fixedly connected to the surface of the connecting plate (17). A row of locking grooves (19) matching the locking rods (18) is opened on the surfaces of both the mounting rod (14) and the mounting block (11). A limiting rod (20) is fixedly connected to the surface of the mounting block (11). A through hole is opened on the surface of the connecting plate (17). The connecting plate (17) is slidably sleeved on the limiting rod (20) through the through hole.
4. The multi-stage filtration device for turning fluid according to claim 1, characterized in that: A second motor (21) is fixedly connected to the side of the filter box (1), and a first bevel gear (22) is fixedly connected to the output end of the second motor (21). A second bevel gear (23) is fixedly sleeved on the surface of the lead screw (3), and the first bevel gear (22) and the second bevel gear (23) mesh with each other.
5. The multi-stage filtration device for turning fluid according to claim 1, characterized in that: The diameter of the filter holes of the three filter plates (2) decreases from left to right. The surfaces of the three scrapers (8) are all provided with inclined surfaces. The three scrapers (8) are respectively attached to the three filter plates (2).
6. The multi-stage filtration device for turning fluid according to claim 3, characterized in that: The mounting rod (14) is fixedly connected to a limiting plate (24), and the mounting groove (26) is provided with a limiting groove (25) that matches the limiting plate (24).