CNC water tank filtering system

By using a primary filtration assembly consisting of a cylinder, a servo motor, and a scraper, along with a secondary filtration structure comprised of a flow guide and connecting pipes, the problem of clogging caused by impurity accumulation in CNC water tank filtration systems is solved, achieving efficient and stable filtration and equipment operation.

CN224207585UActive Publication Date: 2026-05-08广东正和智造科技股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
广东正和智造科技股份有限公司
Filing Date
2025-05-30
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing CNC water tank filtration systems are prone to clogging due to the accumulation of impurities, affecting filtration efficiency and normal equipment operation.

Method used

The first filter assembly, consisting of a cylinder, servo motor, rotating shaft, and scraper, performs preliminary impurity filtration and automatically discharges large particles of impurities via the scraper. Combined with the secondary filter structure of the guide shroud and connecting pipe, the filter paper tape can be easily removed using an electric push rod and a perforated connecting plate.

Benefits of technology

It effectively reduces impurity accumulation, improves filtration efficiency, reduces the risk of system blockage, extends the service life of the cutting fluid, and improves the stability and ease of maintenance of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of filtering, and discloses a CNC water tank filtering system which comprises a machine shell, a first filtering assembly, a second filtering assembly, a collecting assembly and a dirt collecting assembly. Large-particle impurities in water can be preliminarily filtered through a filter plate, filtered and intercepted objects can be pushed along with cooperation of a scraper blade, the large-particle impurities are discharged into a sewage collection assembly through a flow channel, the impurities are discharged, and meanwhile, sewage subjected to preliminary filtration is guided through cooperation of a flow guide cover and a connecting pipe, so that the sewage treatment efficiency is improved. According to the cutting fluid filtering device, sewage can be secondarily filtered through the filter paper belt, meanwhile, the stepped pipe can be detached through cooperation of an electric push rod, a connecting plate with a hole and a through opening, a worker can remove small-particle impurities on the filter paper belt, and therefore impurities in cutting fluid are effectively reduced.
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Description

Technical Field

[0001] This utility model relates to the field of filtration technology, and more specifically, to a CNC water tank filtration system. Background Technology

[0002] CNC (Computer Numerical Control) machining equipment is widely used in modern manufacturing, especially in the machining of high-precision parts. To ensure machining efficiency and workpiece quality, CNC equipment is typically equipped with a circulating cutting fluid system to achieve multiple functions such as cooling, lubrication, and chip removal. To maintain the cleanliness of the cutting fluid, extend its service life, and protect the machining equipment, CNC systems usually have a water tank filtration device to intercept metal chips, dust, and other impurities generated during the cutting process. However, with the continuous increase in machining frequency and intensity, the workload of the filtration system also increases, placing higher demands on the cleaning efficiency and sewage discharge capacity of the filtration device.

[0003] Existing CNC water tank filtration systems mostly employ static or stacked filter structures for initial filtration of impurities. While these structures can effectively trap larger particles initially, the trapped impurities are difficult to remove automatically or conveniently during the filtration process. As impurities gradually accumulate, they can clog the filter components, reducing the filtration efficiency of the cutting fluid and potentially causing poor fluid circulation, thus affecting the normal operation of the equipment.

[0004] Therefore, there is a need to provide a CNC water tank filtration system to solve the problem that existing CNC water tank filtration systems cause clogging of the filter components, affecting filtration efficiency. Utility Model Content

[0005] The main objective of this invention is to provide a CNC water tank filtration system, which aims to solve the technical problems mentioned in the background section.

[0006] The present invention adopts the following technical solution:

[0007] A CNC water tank filtration system, comprising:

[0008] A housing, wherein a control panel is fixedly mounted on one end face of the housing;

[0009] A first filter assembly is disposed above the housing;

[0010] A second filter assembly is disposed within the housing;

[0011] A collection component is disposed within the housing and below the second filter component;

[0012] A dirt collection assembly is disposed on one side of the housing, wherein the dirt collection assembly is used to collect impurities from the first filter assembly.

[0013] Furthermore, the first filter assembly includes a cylinder mounted on the upper end face of the housing, a water inlet pipe is fixedly connected to one side of the cylinder, a servo motor is fixedly mounted on one end face of the cylinder, a rotating shaft is fixedly mounted on the output end of the servo motor, and a scraper is fixedly mounted on the outer surface of the rotating shaft.

[0014] A filter plate is fixedly embedded on the outer surface of the cylinder, an opening is provided on the outer surface of the cylinder, and a flow channel is fixedly installed on the outer surface of the cylinder, with the right end of the flow channel extending to the right side of the casing.

[0015] Furthermore, the second filter assembly includes a flow guide shroud installed on the inner wall of the housing, a connecting pipe fixedly installed on the bottom surface of the flow guide shroud, a stepped pipe provided below the connecting pipe, and a perforated connecting plate sleeved on the outer surface of the stepped pipe;

[0016] Two support blocks are fixedly installed on the inner wall of the housing. An electric push rod is fixedly embedded on the upper surface of each support block. The telescopic end of each electric push rod is fixedly installed on the upper surface of the perforated connecting plate. A filter paper tape is fixedly installed on the inner wall of the stepped tube.

[0017] Furthermore, the collection assembly includes a water collection box installed on the bottom wall of the housing, with a water outlet pipe fixedly connected to the back of the water collection box, and the rear end of the water outlet pipe penetrating the housing and extending to the rear of the housing.

[0018] Furthermore, the sludge collection assembly includes a tray installed on the right side of the housing, a sludge collection box is provided above the tray, and a connecting seat is fixedly installed on the bottom surface of the tray, with the upper end surface of the connecting seat fixedly installed to the bottom surface of the tray.

[0019] Furthermore, a silicone pad is provided inside the stepped tube, and the upper end face of the silicone pad is fixedly installed with the bottom face of the connecting tube.

[0020] Furthermore, a glass plate is fixedly embedded on one end face of the housing, and a bracket is fixedly installed on the bottom surface of the housing.

[0021] Furthermore, an operating port is provided on one side of the housing, and a sealing plate is fixedly installed on one side of the housing by bolts.

[0022] Beneficial effects:

[0023] This utility model provides a CNC water tank filtration system. Through the cooperation of a cylinder, servo motor, rotating rod, and scraper, the scraper can rotate inside the cylinder. The filter plate can initially filter large particulate impurities in the water. With the cooperation of the scraper, the filtered and intercepted items can be pushed, and the large particulate impurities are discharged into the dirt collection component through the flow channel. At the same time, the guide hood and connecting pipe cooperate to guide the wastewater after initial filtration, so that the wastewater can be filtered again through the filter paper belt. The stepped pipe can be disassembled by using an electric push rod, a perforated connecting plate, and a port, so that the operator can remove small particulate impurities on the filter paper belt, thereby effectively reducing impurities in the cutting fluid. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a CNC water tank filtration system according to this utility model;

[0025] Figure 2 This is a frontal cross-sectional structural diagram of the present invention;

[0026] Figure 3 This is a side cross-sectional view of the present invention.

[0027] Figure 4 This is a partial structural schematic diagram of the second filter component of this utility model;

[0028] The components are as follows: 1. Housing; 101. Control panel; 102. Glass plate; 103. Bracket; 104. Operation port; 105. Sealing plate; 2. First filter assembly; 201. Cylinder; 202. Inlet pipe; 203. Servo motor; 204. Flow channel; 205. Scraper; 206. Rotating shaft; 207. Through port; 208. Filter plate; 3. Sludge collection assembly; 301. Support plate; 302. Sludge collection box; 303. Connecting seat; 4. Second filter assembly; 401. Flow guide; 402. Connecting pipe; 403. Stepped pipe; 404. Filter paper tape; 405. Perforated connecting plate; 406. Silicone pad; 407. Support block; 408. Electric push rod; 5. Collection assembly; 501. Water collection box; 502. Outlet pipe.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Reference Figures 1 to 4 This utility model proposes a CNC water tank filtration system, comprising:

[0035] A housing 1, wherein a control panel 101 is fixedly installed on one end face of the housing 1;

[0036] The first filter assembly 2 is disposed above the housing 1;

[0037] The second filter assembly 4 is disposed inside the housing 1;

[0038] Collection component 5 is disposed inside the housing 1 and is disposed below the second filter component 4;

[0039] A dirt collection component 3 is disposed on one side of the housing 1, wherein the dirt collection component 3 is used to collect impurities from the first filter component 2.

[0040] In the above embodiment, the system features a compact structure, clear hierarchical design, and efficient impurity interception and automatic wastewater discharge capabilities. The system includes a housing 1 mounted on the exterior of the entire system. A control panel 101 is installed at one end of the housing 1 to control the operation of the entire filtration system. A first filter assembly 2 is located on top of the housing 1. This assembly may consist of a cylinder 201, filter plates 208, a rotating rod, a servo motor 203, and a scraper 205. The first filter assembly 2 discharges impurities into a collection assembly 3 located on one side of the housing 1, achieving centralized collection of impurities after primary filtration and preventing them from accumulating and clogging the cylinder 201 over a long period.

[0041] After primary filtration, residual wastewater is guided into a second filter assembly 4 located inside the housing 1. The second filter assembly 4 has a higher filtration level than the first filtration level, forming a continuous secondary filtration structure that effectively intercepts smaller suspended impurities. For ease of maintenance and cleaning, an electric push rod 408 can be installed to drive the drain structure, allowing personnel to easily replace the filter belt or clean residual fine impurities. This structure not only improves the overall filtration effect but also significantly reduces the risk of system clogging, effectively extending the service life of the cutting fluid and reducing maintenance frequency. Through the synergistic effect of the above structures, this invention can continuously achieve efficient and stable liquid filtration in CNC machining environments, and is particularly suitable for CNC machining equipment with high requirements for coolant cleanliness.

[0042] Reference Figures 1 to 2 In one embodiment, the first filter assembly 2 includes a cylinder 201 mounted on the upper end face of the housing 1. A water inlet pipe 202 is fixedly connected to one side of the cylinder 201. A servo motor 203 is fixedly mounted on one end face of the cylinder 201. A rotating shaft 206 is fixedly mounted on the output end of the servo motor 203. A scraper 205 is fixedly mounted on the outer surface of the rotating shaft 206.

[0043] A filter plate 208 is fixedly embedded on the outer surface of the cylinder 201. An opening 207 is provided on the outer surface of the cylinder 201. A flow channel 204 is fixedly installed on the outer surface of the cylinder 201. The right end of the flow channel 204 extends to the right side of the housing 1.

[0044] In the above embodiment, the first filter assembly 2 includes a cylindrical body 201 mounted on the upper surface of the housing 1. One side of the cylindrical body 201 is fixedly connected to a water inlet pipe 202 via a connecting structure. The water inlet pipe 202 is used to transport the returning cutting fluid into the cylindrical body 201, ensuring its continuous entry into the primary filtration module. A servo motor 203 is mounted on one end face of the cylindrical body 201. A rotating shaft 206 is mounted on the output end of the servo motor 203, and a scraper 205 structure is fixedly connected to the outer surface of the rotating shaft 206. Driven by the servo motor 203, the rotating shaft 206 drives the scraper 205 to rotate inside the cylindrical body 201, allowing impurities adhering to the surface of the filter plate 208 to be scraped off in a timely manner, preventing accumulation and blockage on the filter plate 208.

[0045] The filter plate 208 is fixedly embedded in the outer surface of the cylinder 201 to achieve the first stage of filtration for large particulate impurities. The cylinder 201 also has an opening 207, which is connected to the external flow channel 204, allowing impurities pushed by the scraper 205 to be directly discharged into the subsequent dirt collection structure through the opening 207. The flow channel 204 serves as part of the filtered impurity discharge channel, with its end extending to the right side of the housing 1, thus forming a complete, automatic impurity guiding and discharge structure. This combined structure not only achieves effective initial isolation of large particulate impurities, but also, combined with the servo motor 203, enables automated impurity discharge, effectively alleviating the clogging problem caused by impurity accumulation in traditional filter devices.

[0046] Reference Figure 2 In one example, the second filter assembly 4 includes a flow guide shroud 401 installed on the inner wall of the housing 1. A connecting pipe 402 is fixedly installed on the bottom surface of the flow guide shroud 401. A stepped pipe 403 is provided below the connecting pipe 402. A perforated connecting plate 405 is sleeved on the outer surface of the stepped pipe 403.

[0047] Two support blocks 407 are fixedly installed on the inner wall of the housing 1. An electric push rod 408 is fixedly embedded on the upper end face of each support block 407. The telescopic end of each electric push rod 408 is fixedly installed on the upper end face of the perforated connecting plate 405. A filter paper tape 404 is fixedly installed on the inner wall of the stepped tube 403.

[0048] In the above embodiment, the second filter assembly 4 is disposed inside the housing 1 and is responsible for fine filtration of the cutting fluid. This assembly includes a flow guide shroud 401 fixedly mounted on the inner wall of the housing 1. A connecting pipe 402 is provided at the bottom of the flow guide shroud 401 to receive the initially purified liquid flowing down from the first filter assembly 2. Below the connecting pipe 402 is a stepped pipe 403, which accommodates the filter device and creates a certain drop, allowing the liquid to flow under gravity and fully contact the filter medium. A perforated connecting plate 405 is provided on the outer surface of the stepped pipe 403, which is connected to the electric push rods 408 on both sides via a fixing structure.

[0049] Two support blocks 407 are installed on the inner wall of the housing 1. Each support block 407 has an electric push rod 408 mounted above it. The telescopic end of the electric push rod 408 is connected to the upper end of the connecting plate. By extending and retracting the push rod, the perforated connecting plate 405 can be driven to move the stepped tube 403 up and down, thus enabling quick assembly and disassembly of the filter components. The stepped tube 403 contains a filter paper tape 404, which serves as a secondary filtration medium and effectively traps small particulate impurities that the primary filtration failed to remove. Guided by the flow guide shroud 401 and the connecting tube 402, the entire structure achieves directional fluid flow transmission. The filter paper tape 404 completes the secondary purification of the cutting fluid, and the structure provides convenient maintenance, offering reliable support for the circulation and purification of cutting fluid in long-term automated machining scenarios.

[0050] In one embodiment, the collection component 5 includes a water collection box 501 installed on the bottom wall of the inner casing 1. A water outlet pipe 502 is fixedly connected to the back of the water collection box 501. The rear end of the water outlet pipe 502 passes through the casing 1 and extends to the rear of the casing 1.

[0051] In the above embodiment, the collecting component 5 is installed at the inner bottom of the housing 1 to receive the cutting fluid filtered by the second filtering component 4. This component mainly includes a water collection box 501 and a water outlet pipe 502 connected to it. The water collection box 501 is embedded in the inner bottom wall of the housing 1 by a bottom-fixed installation method. Its main function is to collect the clean cutting fluid after two stages of filtration, ensuring that the liquid is collected and gathered after complete purification. The back of the water collection box 501 is connected to the water outlet pipe 502, the rear end of which penetrates the entire structure of the housing 1 and extends to the rear of the housing 1, thereby facilitating the discharge of the purified cutting fluid and its return to the liquid circulation path of the CNC machining system.

[0052] In one embodiment, the sludge collection assembly 3 includes a tray 301 installed on the right side of the housing 1, a sludge collection box 302 is provided above the tray 301, and a connecting seat 303 is fixedly installed on the bottom surface of the tray 301, with the upper end surface of the connecting seat 303 fixedly installed with the bottom surface of the tray 301.

[0053] In the above embodiment, the sludge collection component 3 is located on the right side of the housing 1 and is mainly used to collect large particulate impurities scraped off from the first filter component 2, preventing impurities from flowing back or spreading and contaminating other components. This component includes a tray 301 fixedly installed on the right side of the housing 1. A detachable sludge collection box 302 is provided above the tray 301. The sludge collection box 302 is used to collect impurities pushed by the scraper 205 and guided by the flow channel 204. The tray 301 provides a stable mounting platform for the sludge collection box 302, and a connecting seat 303 is fixed to its bottom. The connecting seat 303 and the tray 301 are integrated for enhanced overall strength and durability. The sludge collection box 302 itself can be disassembled and replaced according to maintenance needs, facilitating regular cleaning of accumulated impurities and ensuring the entire system remains in a clean state.

[0054] In one embodiment, a silicone pad 406 is provided inside the stepped tube 403, and the upper end surface of the silicone pad 406 is fixedly installed with the bottom surface of the connecting tube 402.

[0055] In the above embodiment, a silicone gasket 406 is provided inside the stepped pipe 403. The silicone gasket 406 is installed at the upper end of the stepped pipe 403 and forms a sealing fit with the bottom end of the connecting pipe 402. The silicone gasket 406 is made of a highly elastic sealing material, which can effectively fill the interface gap when the connecting pipe 402 and the stepped pipe 403 are connected, preventing cutting fluid from leaking from the connection point during the filtration process. Considering the pressure difference and flow rate changes inside the system, ordinary mechanical contact surfaces are difficult to ensure long-term sealing, while the silicone gasket 406 solves this problem with its flexibility and resilience.

[0056] In one embodiment, a glass plate 102 is fixedly embedded on one end face of the housing 1, and a bracket 103 is fixedly installed on the bottom surface of the housing 1.

[0057] In the above embodiment, a glass plate 102 is fixedly embedded on one end face of the housing 1. This glass plate 102 is used to observe the internal operating status of the equipment, especially to facilitate the observation of the movement of the filter paper belt 404, the scraper 205, and the liquid flow, allowing users to monitor the system's normal operation in real time during equipment operation. The glass plate 102 is made of impact-resistant material, has good transparency and durability, and its embedding method ensures its stability and sealing performance. A bracket 103 is installed on the bottom surface of the housing 1. The bracket 103 is used to support the structural center of gravity of the entire filtration system, improving the stability of the equipment during operation. The bracket 103 can be made of high-strength metal material, combined with rubber shock-absorbing pads, to further reduce the impact of vibrations generated during equipment operation on the structural body.

[0058] In one embodiment, an operation port 104 is provided on one side of the housing 1, and a sealing plate 105 is fixedly installed on one side of the housing 1 by bolts.

[0059] In the above embodiment, an operation port 104 is provided on one side of the housing 1, and a sealing plate 105 is fixedly installed on the operation port 104 by bolts. The operation port 104 is mainly designed to facilitate maintenance personnel to quickly enter the device without disassembling the main housing 1 to inspect and clean the stepped tube 403 or filter paper tape 404. When it is necessary to remove impurities adhering to the filter paper tape 404 or replace the paper tape, the stepped tube 403 assembly can be removed simply by opening the sealing plate 105. The sealing plate 105 is fixed by bolts, which not only makes disassembly and assembly convenient but also ensures a reliable seal during operation, preventing liquid or impurities from leaking out.

[0060] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A CNC water tank filtration system, characterized in that, include: The housing (1) has a control panel (101) fixedly installed on one end face of the housing (1). The first filter assembly (2) is disposed above the housing (1); The second filter assembly (4) is disposed inside the housing (1); Collection component (5) is disposed inside the housing (1) and is disposed below the second filter component (4); A dirt collection component (3) is disposed on one side of the housing (1), wherein the dirt collection component (3) is used to collect impurities from the first filter component (2).

2. The CNC water tank filtration system according to claim 1, characterized in that, The first filter assembly (2) includes a cylinder (201) installed on the upper end face of the housing (1). A water inlet pipe (202) is fixedly connected to one side of the cylinder (201). A servo motor (203) is fixedly installed on one end face of the cylinder (201). A rotating shaft (206) is fixedly installed at the output end of the servo motor (203). A scraper (205) is fixedly installed on the outer surface of the rotating shaft (206). A filter plate (208) is fixedly embedded on the outer surface of the cylinder (201), and an opening (207) is provided on the outer surface of the cylinder (201). A flow channel (204) is fixedly installed on the outer surface of the cylinder (201), and the right end of the flow channel (204) extends to the right side of the casing (1).

3. The CNC water tank filtration system according to claim 1, characterized in that, The second filter assembly (4) includes a flow guide shroud (401) installed on the inner wall of the housing (1). A connecting pipe (402) is fixedly installed on the bottom surface of the flow guide shroud (401). A stepped pipe (403) is provided below the connecting pipe (402). A perforated connecting plate (405) is sleeved on the outer surface of the stepped pipe (403). Two support blocks (407) are fixedly installed on the inner wall of the housing (1). An electric push rod (408) is fixedly embedded on the upper end face of each support block (407). The telescopic end of each electric push rod (408) is fixedly installed on the upper end face of the perforated connecting plate (405). A filter paper tape (404) is fixedly installed on the inner wall of the stepped tube (403).

4. The CNC water tank filtration system according to claim 1, characterized in that, The collection component (5) includes a water collection box (501) installed on the bottom wall of the housing (1). The back of the water collection box (501) is fixedly connected to a water outlet pipe (502). The rear end of the water outlet pipe (502) passes through the housing (1) and extends to the rear of the housing (1).

5. A CNC water tank filtration system according to claim 1, characterized in that, The sludge collection assembly (3) includes a tray (301) installed on the right side of the housing (1), a sludge collection box (302) is provided above the tray (301), and a connecting seat (303) is fixedly installed on the bottom surface of the tray (301). The upper end surface of the connecting seat (303) is fixedly installed with the bottom surface of the tray (301).

6. A CNC water tank filtration system according to claim 3, characterized in that, The stepped tube (403) is provided with a silicone pad (406) inside, and the upper end surface of the silicone pad (406) is fixedly installed with the bottom surface of the connecting tube (402).

7. The CNC water tank filtration system according to claim 1, characterized in that, A glass plate (102) is fixedly embedded on one end face of the housing (1), and a bracket (103) is fixedly installed on the bottom surface of the housing (1).

8. A CNC water tank filtration system according to claim 1, characterized in that, An operation port (104) is provided on one side of the housing (1), and a sealing plate (105) is fixedly installed on one side of the housing (1) by bolts.