Multi-stage circulating filtering device for metal working fluid

By combining filter cylinders and plates, scattering components, and cooling pipes in a multi-stage filtration device, the problems of poor filtration effect and insufficient cooling of metalworking fluids are solved, achieving efficient filtration and cooling effects and extending the service life of the device.

CN224071289UActive Publication Date: 2026-04-03TIANJIN INTELLECT SCI & TECH DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing technologies have poor filtration effects on metalworking fluids and are difficult to cool, which makes the filter element easy to damage.

Method used

A multi-stage filtration device is used, including filter cylinders and filter plates for multi-stage filtration. The contact area between the metalworking fluid and the filter cylinder is increased by a dispersion component, and cooling is provided by cooling pipes. The filtration effect is improved by combining cleaning and adsorption components.

Benefits of technology

It achieves efficient multi-stage filtration and cooling, avoids damage to the device from high temperatures, extends its service life, and improves filtration efficiency and cleanliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a metal working fluid multistage circulating filtering device which comprises a filtering frame shell, a filtering net cylinder and a filtering net plate, the filtering net cylinder and the filtering net plate are both connected to the side wall of an inner cavity of the filtering frame shell, the filtering net cylinder is arranged above the filtering net plate, and the filtering net plate is arranged above the filtering net cylinder. The filter screen cylinder and the filter screen plate are used for performing multi-stage filtration on the metal working fluid; and the metal working fluid can be scattered through the scattering assembly, and the contact area of the metal working fluid and the filter screen cylinder is increased. According to the metal working fluid filtering device, the metal working fluid can be filtered in a multi-stage mode through the filtering net cylinder and the filtering net plate, the filtering effect is good, the metal working fluid can be scattered through the scattering assembly, the metal working fluid can make more comprehensive contact with the filtering net cylinder, and the filtering efficiency of the filtering net cylinder can be effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of metalworking fluid filtration and treatment, and in particular to a multi-stage circulating filtration device for metalworking fluid. Background Technology

[0002] Metalworking fluids are liquids that primarily play an auxiliary role in metalworking processes, possessing multiple functions such as lubrication, cooling, cleaning, and rust prevention. Metalworking fluids typically contain various additives to meet specific machining requirements; these additives may include extreme pressure additives, surfactants, and rust inhibitors. The main functions of metalworking fluids include: lubrication, which reduces friction between the tool and workpiece, thereby extending tool life and improving the surface finish of the machined parts; cooling, which removes heat generated during machining through the flushing action of a large flow rate, lowering the temperature of the tool and workpiece; cleaning, which removes dirt and cutting chips from the metal surface, keeping the machining area clean; and rust prevention, where rust-preventive additives prevent the metal from rusting during machining or storage.

[0003] Metalworking fluids can be reused or easily discharged after filtration. In the authorized Chinese utility model patent "Announcement No.: CN221432285U, Title: A Filtration Device for Metalworking Fluid", the movable component can move continuously during the filtration process to make full use of the area inside the filter element. However, the above application relies solely on the filter element for filtration, resulting in poor filtration effect. Moreover, the metalworking fluid is at a high temperature after use, and it is difficult to cool the metalworking fluid in the above application, which can easily damage the filter element and other structures due to high temperature. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of poor filtration effect and difficulty in cooling metalworking fluid in the prior art, and to provide a multi-stage circulating filtration device for metalworking fluid.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This invention provides a multi-stage circulating filtration device for metalworking fluids, including a filter frame shell.

[0007] The filter cylinder and filter plate are both connected to the inner wall of the filter frame shell. The filter cylinder is positioned above the filter plate. The filter cylinder and filter plate are used for multi-stage filtration of metalworking fluid.

[0008] The cooling pipe is located inside the filter frame housing and outside the filter screen cylinder. The cooling pipe is used to cool the metalworking fluid.

[0009] A dispersion component is disposed in the inner cavity of the filter screen cylinder. The dispersion component allows the metalworking fluid to be dispersed, increasing the contact area with the filter screen cylinder. The dispersion component is connected to a drive component, which is connected to the top of the filter frame shell. The drive component is used to provide driving force for the dispersion component.

[0010] A liquid filling pipe is disposed above the filter frame shell, and the liquid filling pipe is used to deliver metalworking fluid into the filter frame shell for processing.

[0011] In this technical solution, the metalworking fluid can be filtered in multiple stages using filter cylinders and filter plates, resulting in good filtration effect. Furthermore, the scattering component can disperse the metalworking fluid, allowing it to come into more comprehensive contact with the filter cylinder, which can effectively improve the filtration efficiency of the filter cylinder. At the same time, the cooling pipes can be used to cool the metalworking fluid, and the scattering component can fully dissipate the heat in the metalworking fluid, thereby improving the cooling effect of the cooling pipes.

[0012] Preferably, the cooling pipes are arranged in a spiral structure, and the inlet and outlet ports of the cooling pipes are respectively connected to the side of the filter frame shell.

[0013] In this technical solution, coolant is introduced into the cooling pipes to cool the metalworking fluid.

[0014] Preferably, the scattering component includes a plurality of scattering discs, which are arranged vertically.

[0015] Two adjacent scattering discs are connected by multiple connecting posts, and the upper part of the uppermost scattering disc and the lower part of the lowermost scattering disc are both connected by multiple connecting posts, and the bottom end of the lowermost connecting post is connected to the top of the reinforcing plate.

[0016] In this technical solution, the metalworking fluid can be dispersed in all directions using the dispersion component.

[0017] Preferably, each of the multiple scattering discs has a connecting port at its center, and the diameter of the multiple connecting ports decreases sequentially from top to bottom.

[0018] In this technical solution, the connecting port allows the metalworking fluid to enter the lower slurry plate.

[0019] Preferably, the scattering disc has an arc-shaped structure, and the top surface of the scattering disc has multiple grooves arranged in a ring array.

[0020] In this technical solution, the arc-shaped structure and groove facilitate the dispersal of the metalworking fluid.

[0021] Preferably, the drive assembly includes a drive source connected to the top of the filter frame housing, and the output end of the drive source is connected to a main gear;

[0022] The main gear is meshed with a secondary gear ring on its side, and the secondary gear ring is rotatably sleeved on the surface of the liquid filling pipe.

[0023] The bottom of the auxiliary gear ring is connected to a rotating cylinder, which is rotatably connected through the top surface of the filter frame shell.

[0024] In this technical solution, a driving component can be used to provide driving force for the rotation of the fly-out component.

[0025] Preferably, both the main gear and the auxiliary gear ring are disposed within the inner cavity of the protective housing, and the protective housing is connected to the top of the filter frame shell;

[0026] The surface of the liquid filling tube is fixedly connected to the top surface of the protective shell, and the surface of the liquid filling tube is rotatably connected to the auxiliary gear ring and the rotating cylinder respectively.

[0027] In this technical solution, metalworking fluid can be added into the filter frame using a liquid addition pipe.

[0028] Preferably, a cleaning component is provided above the filter screen, and the cleaning component is connected to the lower part of the scattering component;

[0029] The cleaning component includes a drive shaft, the upper end of which is connected to the bottom of a reinforcing plate, the surface of which is rotatably connected to the bottom surface of a filter cylinder, and the bottom end of which is rotatably connected to the bottom of the inner cavity of a filter frame.

[0030] A rotating disk is connected to the surface of the drive shaft, and multiple cleaning brushes arranged in a circular array are connected to the side of the rotating disk. The bottom of the cleaning brushes contacts the top surface of the filter screen.

[0031] In this technical solution, the cleaning component can rotate along with the scattering component, which facilitates the cleaning of the filter screen and prevents the filter screen from being clogged and affecting its use.

[0032] Preferably, the cleaning brush consists of a fixed plate and a brush plate, with the brush plate connected to the fixed plate and in contact with the top of the filter screen.

[0033] In this technical solution, a cleaning brush can be used to clean the filter screen.

[0034] Preferably, an adsorption assembly is provided below the filter screen, and the adsorption assembly is connected to the drive shaft;

[0035] The adsorption assembly includes a mounting plate and magnetic adsorption columns. Multiple mounting plates are connected to the surface of the drive shaft, and multiple magnetic adsorption columns are connected to the sides of the mounting plates.

[0036] In this technical solution, an adsorption component can be used to collect metal powder in the metalworking fluid, thereby improving the filtration effect of the metalworking fluid.

[0037] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0038] The positive and progressive effects of this utility model are as follows:

[0039] This invention utilizes a filter cylinder and filter plate to perform multi-stage filtration of metalworking fluid, resulting in excellent filtration. Furthermore, the use of a dispersion component disperses the metalworking fluid, ensuring more comprehensive contact with the filter cylinder and effectively improving its filtration efficiency. Simultaneously, a cooling system cools the metalworking fluid, and the dispersion component allows for thorough heat dissipation, enhancing the cooling effect of the cooling system and preventing high temperatures from affecting the lifespan of other structures within the filter housing.

[0040] Simultaneously, the rotation of the dispersing component drives the rotation of the cleaning component and the adsorption component. The rotation of the cleaning component cleans the filter screen to prevent it from becoming clogged and affecting its use. The rotation of the adsorption component collects metal powder and other substances in the metalworking fluid, thereby improving the filtration effect of the metalworking fluid. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of a multi-stage circulating filtration device for metalworking fluid according to an embodiment of the present invention.

[0042] Figure 2 for Figure 1 The diagram shows the internal structure of the filter frame of a multi-stage circulating filtration device for metalworking fluids.

[0043] Figure 3 for Figure 1 The diagram shows the overall internal cross-sectional structure of the multi-stage circulating filtration device for metalworking fluids.

[0044] Figure 4 for Figure 1 The diagram shows the internal structure of the filter frame and protective housing of the multi-stage circulating filtration device for metalworking fluids.

[0045] Explanation of reference numerals in the attached figures

[0046] 1. Filter frame shell;

[0047] 2. Filter screen cylinder;

[0048] 3. Filter screen;

[0049] 4. Cooling piping;

[0050] 5. Scattering assembly; 51. Scattering disc; 52. Connecting post; 53. Reinforcing plate;

[0051] 6. Drive assembly; 61. Drive source; 62. Main gear; 63. Secondary gear ring; 64. Rotating cylinder; 65. Protective housing;

[0052] 7. Liquid filling tube;

[0053] 8. Cleaning components; 81. Drive shaft; 82. Rotary disc; 83. Cleaning brush;

[0054] 9. Adsorption assembly; 91. Mounting plate; 92. Magnetic adsorption column;

[0055] 10. Pulley. Detailed Implementation

[0056] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0057] Figures 1 to 4 The diagram shown is a structural schematic of an embodiment of the multi-stage circulating filtration device for metalworking fluid of this utility model.

[0058] Example 1

[0059] The multi-stage circulating filtration device for metalworking fluids includes a filter frame 1.

[0060] The bottom of the filter frame shell 1 is connected to multiple sliding wheels 10, which facilitates the movement of the device.

[0061] The filter frame 1 is connected to the discharge pipe end at the lower side.

[0062] The filter cylinder 2 and the filter plate 3 are both connected to the inner cavity side wall of the filter frame shell 1. The filter cylinder 2 is disposed above the filter plate 3. The filter cylinder 2 and the filter plate 3 are used for multi-stage filtration of metalworking fluid.

[0063] Cooling pipe 4 is located inside the filter frame shell 1 and outside the filter screen cylinder 2. The cooling pipe 4 is used to cool the metalworking fluid.

[0064] The scattering component 5 is disposed in the inner cavity of the filter cylinder 2. The scattering component 5 allows the metalworking fluid to scatter, increasing the contact area with the filter cylinder 2. The scattering component 5 is connected to the driving component 6, which is connected to the top of the filter frame shell 1. The driving component 6 is used to provide driving force for the scattering component 5.

[0065] Liquid filling pipe 7 is disposed above the filter frame shell 1 and is used to deliver metalworking fluid into the filter frame shell 1 for processing.

[0066] In use, the metalworking fluid is fed into the filter frame housing 1 through the liquid filling pipe 7, and then the driving component 6 drives the dispersing component 5 to rotate. The dispersing component 5 allows the metalworking fluid to be dispersed in all directions. The filter cylinder 2 and the filter plate 3 are used to filter the metalworking fluid in sequence, realizing multi-stage filtration of the metalworking fluid and achieving better filtration effect.

[0067] In this technical solution, the metalworking fluid can be filtered in multiple stages using the filter cylinder 2 and the filter plate 3, resulting in good filtration effect. The scattering component 5 can also scatter the metalworking fluid, allowing it to come into more comprehensive contact with the filter cylinder 2, which can effectively improve the filtration efficiency of the filter cylinder 2. At the same time, the cooling pipe 4 can be used to cool the metalworking fluid, and the scattering component 5 can also fully dissipate the heat in the metalworking fluid, thereby improving the cooling effect of the cooling pipe 4.

[0068] It is worth noting that the treated metalworking fluid discharged from the filter frame shell 1 can be reintroduced into the filter frame shell 1 through the liquid filling pipe 7 for circulating filtration.

[0069] The cooling pipes 4 are arranged in a spiral structure, and the inlet and outlet ports of the cooling pipes 4 are respectively connected to the side of the filter frame shell 1.

[0070] In this technical solution, coolant is introduced into the cooling pipe 4 to cool the metalworking fluid.

[0071] The scattering component 5 includes a plurality of scattering discs 51, which are arranged vertically.

[0072] Two adjacent scattering discs 51 are connected by multiple connecting posts 52. The upper part of the uppermost scattering disc 51 and the lower part of the lowermost scattering disc 51 are both connected by multiple connecting posts 52, and the bottom end of the lowermost connecting post 52 is connected to the top of the reinforcing plate 53.

[0073] In this technical solution, the metalworking fluid can be dispersed in all directions using the scattering component 5.

[0074] Each of the multiple scattering discs 51 has a connecting port at its center, and the diameter of the multiple connecting ports decreases from top to bottom.

[0075] In this technical solution, the connecting port allows the metalworking fluid to enter the lower scattering plate 51.

[0076] The scattering disc 51 has an arc-shaped structure, and the top surface of the scattering disc 51 has multiple grooves arranged in a ring array.

[0077] In this technical solution, the arc-shaped structure and groove facilitate the dispersal of the metalworking fluid.

[0078] In use, the drive assembly 6 drives the connecting column 52 to rotate, which in turn drives multiple scattering discs 51, multiple connecting columns 52 and reinforcing plate 53 to rotate in sequence. When the scattering disc 51 rotates, it uses its own arc structure and the groove opened on the top surface to allow the metal processing fluid to scatter in all directions, so that it can fully contact the filter screen cylinder 2 and the cooling pipe 4 to improve the filtration and cooling efficiency.

[0079] The drive assembly 6 includes a drive source 61, which is connected to the top of the filter frame 1, and the output end of the drive source 61 is connected to a main gear 62.

[0080] The main gear 62 is meshed with a secondary gear ring 63 on its side, and the secondary gear ring 63 is rotatably sleeved on the surface of the liquid filling pipe 7.

[0081] The bottom of the auxiliary gear ring 63 is connected to a rotating cylinder 64, which is rotatably connected to the top surface of the filter frame shell 1.

[0082] In this technical solution, the drive component 6 can provide driving force for the rotation of the scattering component 5.

[0083] The main gear 62 and the auxiliary gear ring 63 are both located in the inner cavity of the protective housing 65, and the protective housing 65 is connected to the top of the filter frame shell 1;

[0084] The surface of the liquid filling tube 7 is fixedly connected to the top surface of the protective shell 65, and the surface of the liquid filling tube 7 is rotatably connected to the auxiliary gear ring 63 and the rotating cylinder 64 respectively.

[0085] In this technical solution, metalworking fluid can be added into the filter frame shell 1 using the liquid addition pipe 7.

[0086] In use, the drive source 61 drives the main gear 62 to rotate, which in turn drives the secondary gear ring 63 to rotate, thereby driving the rotating cylinder 64 to rotate, which in turn drives the fly-scattering assembly 5 to rotate.

[0087] Example 2

[0088] As one embodiment of this application, the difference between it and Embodiment 1 is that a cleaning component 8 is provided above the filter screen 3, and the cleaning component 8 is connected to the lower part of the scattering component 5;

[0089] The cleaning component 8 includes a drive shaft 81, the upper end of which is connected to the bottom of the reinforcing plate 53, the surface of which is rotatably connected to the bottom surface of the filter cylinder 2, and the bottom end of which is rotatably connected to the bottom of the inner cavity of the filter frame shell 1.

[0090] The drive shaft 81 is connected to a rotating disk 82, and a plurality of cleaning brushes 83 arranged in a circular array are connected to the side of the rotating disk 82. The bottom of the cleaning brushes 83 is in contact with the top surface of the filter screen 3.

[0091] In this technical solution, the cleaning component 8 can rotate with the rotation of the scattering component 5, thereby facilitating the cleaning of the filter screen 3 and preventing the filter screen 3 from being clogged and affecting its use.

[0092] The cleaning brush 83 consists of a fixed plate and a brush plate. The brush plate is connected to the fixed plate and contacts the top of the filter screen 3.

[0093] In this technical solution, the filter screen 3 can be cleaned using the cleaning brush 83.

[0094] When the reinforcing plate 53 rotates, it can drive the transmission shaft 81 to rotate, which in turn drives the rotating disk 82 to rotate, which in turn drives multiple cleaning brushes 83 to rotate. The cleaning brushes 83 can clean the filter screen 3.

[0095] Example 3

[0096] As one embodiment of this application, the difference between it and embodiment two is that an adsorption component 9 is provided below the filter screen plate 3, and the adsorption component 9 is connected to the drive shaft 81.

[0097] The adsorption component 9 includes a mounting plate 91 and magnetic adsorption columns 92. Multiple mounting plates 91 are connected to the surface of the drive shaft 81, which are distributed vertically. Multiple magnetic adsorption columns 92 are connected to the side of the mounting plate 91.

[0098] In this technical solution, the adsorption component 9 can be used to collect metal powder in the metalworking fluid, thereby improving the filtration effect of the metalworking fluid.

[0099] When the drive shaft 81 rotates, it can drive the mounting plate 91 to rotate, which in turn drives multiple magnetic adsorption columns 92 to rotate. The magnetic adsorption columns 92 adsorb metal powder, small particles and other substances in the metalworking fluid, thereby improving the filtration effect of the metalworking fluid.

[0100] The drive source 61 is a motor or other component that can output rotational kinetic energy.

[0101] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A multi-stage circulation filtering device for metal working fluid, comprising a filtering frame shell (1), characterized in that, The metal processing liquid multi-stage circulation filtering device further comprises a filter screen cylinder (2) and a filter screen plate (3), both of which are connected to the inner cavity side wall of the filter frame shell (1), the filter screen cylinder (2) is arranged above the filter screen plate (3), and the filter screen cylinder (2) and the filter screen plate (3) are used for multi-stage filtering of the metal processing liquid. A cooling pipeline (4) is arranged at the inner cavity of the filter frame shell (1) and outside the filter screen cylinder (2), and is used for cooling the metal processing liquid. A scattering assembly (5) is arranged at the inner cavity of the filter screen cylinder (2), which enables the metal processing liquid to be scattered, increases the contact area with the filter screen cylinder (2), and is connected with a driving assembly (6) connected to the top of the filter frame shell (1), which is used to provide driving force for the scattering assembly (5). A liquid adding pipe (7) is arranged above the filter frame shell (1) and is used to send the metal processing liquid into the filter frame shell (1) for treatment.

2. The multi-stage circulating filtration device for metal working fluid according to claim 1, characterized in that: The cooling pipeline (4) is in a spiral structure and the inlet and outlet ports of the cooling pipeline (4) are connected to the side of the filter frame shell (1).

3. The multi-stage circulating filtration device for metal working fluid according to claim 1, characterized in that: The scattering assembly (5) comprises a plurality of scattering discs (51) arranged in an up-down manner. The upper part of the uppermost scattering disc (51) and the lower part of the lowermost scattering disc (51) are connected with a plurality of connecting columns (52), and the bottom end of the lowermost connecting column (52) is connected with the top of the reinforcing plate (53).

4. The multi-stage circulating filtration device for metal working fluid according to claim 3, characterized in that: A plurality of communication openings are arranged at the center of the scattering disc (51), and the diameters of the plurality of communication openings decrease from top to bottom.

5. The multi-stage circulating filtration device for metal working fluid according to claim 3, wherein: The scattering disc (51) is in an arc structure, and a plurality of grooves arranged in a ring array are arranged on the top surface of the scattering disc (51).

6. The multi-stage circulating filtration device for metal working fluid of claim 1, wherein: The driving assembly (6) comprises a driving source (61) connected to the top of the filter frame shell (1), and the output end of the driving source (61) is connected with a main gear (62). The side surface of the main gear (62) is engaged with a secondary gear ring (63), the secondary gear ring (63) is rotatably sleeved on the surface of the liquid adding pipe (7), and the bottom of the secondary gear ring (63) is connected with a rotating cylinder (64). The main gear (62) and the secondary gear ring (63) are arranged in the inner cavity of a protective shell (65) connected to the top of the filter frame shell (1).

7. The multi-stage circulating filtration device for metalworking fluid as set forth in claim 6, characterized by: The surface of the liquid adding pipe (7) is fixedly connected with the top surface of the protective shell (65), and the surface of the liquid adding pipe (7) is rotatably connected with the secondary gear ring (63) and the rotating cylinder (64). A cleaning assembly (8) is arranged above the filter screen plate (3) and is connected with the lower part of the scattering assembly (5).

8. The multi-stage circulating filtration device for metal working fluid of claim 1, wherein: ​ The cleaning assembly (8) comprises a transmission shaft (81), the upper end of the transmission shaft (81) is connected with the bottom of the reinforcing plate (53), the surface of the transmission shaft (81) is rotatably penetrated and connected with the bottom surface of the filter screen cylinder (2), and the bottom end of the transmission shaft (81) is rotatably connected with the bottom of the inner cavity of the filter frame shell (1). The surface of the transmission shaft (81) is connected with a rotating disc (82), the side of the rotating disc (82) is connected with a plurality of cleaning brushes (83) which are arranged in an annular array, and the bottom of the cleaning brush (83) is in contact with the top surface of the filter screen plate (3).

9. The multi-stage circulating filtration device for metalworking fluid as claimed in claim 8, wherein: The cleaning brush (83) is composed of a fixed plate and a brush plate, the brush plate is connected with the fixed plate, and the brush plate is in contact with the top of the filter screen plate (3). 10.The metal processing fluid multi-stage circulation filtering device of claim 8, wherein: A suction assembly (9) is arranged below the filter screen plate (3), and the suction assembly (9) is connected with the transmission shaft (81). The suction assembly (9) comprises a mounting plate (91) and a magnet adsorption column (92), a plurality of mounting plates (91) are arranged on the surface of the transmission shaft (81) in an up-down distribution, and a plurality of magnet adsorption columns (92) are connected with the side of the mounting plate (91).

Citation Information

Patent Citations

  • Filtering device for metal working fluid

    CN221432285U