A filtering device for water-based paint production

Abstract

The utility model discloses a filter device for water-based paint production, and the base is equipped with a rack and wheels, the rack is fixedly connected with a filter box, a sealing cover and a feeding pipe are arranged on the top of the box, and a discharge pipe and a valve are arranged on the bottom of the box; a fixed ring is arranged in the box to mount a coarse filter plate, a fine filter assembly is arranged on the bottom of the box, the assembly is composed of a bottom plate, a filter cartridge and a partition plate, the waste discharge hole of the bottom plate is connected with the feeding hole of the partition plate through the filter cartridge; a lifting device is mounted on the base and comprises a stud, a sleeve and a bearing plate, the sleeve is threadedly engaged with the stud, the sleeve is provided with a handle rod and is connected with the bearing plate, the bearing plate is fixedly connected with a supporting plate, and the supporting plate is provided with a plug column to seal the waste discharge hole. During operation, the coarse filter plate removes large impurities first, and then the fine filter assembly filters, and the impurities sink to the bottom; when cleaning is needed, the handle rod is rotated to lower the bearing plate and pull out the plug column, the impurities are discharged from the waste discharge hole, quick cleaning is realized, and the efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of water-based paint processing technology, specifically relating to a filtration device for water-based paint production. Background Technology

[0002] Water-based paint is an environmentally friendly coating that uses water as a diluent and contains no organic solvents. It is free of benzene, toluene, xylene, formaldehyde, free TDI, and soluble heavy metals. It has a mild odor, is harmless to the human body, and does not pollute the environment. Its paint film is full, bright, flexible, and wear-resistant, and also has the advantages of water resistance, aging resistance, yellowing resistance, fast drying, and easy application. It can be widely used on wood, metal, plastic, glass, and building substrates.

[0003] Water-based paints are prone to contamination with mechanical impurities, dust, and gelling particles during production, packaging, and transportation. These impurities directly affect the gloss, adhesion, and storage stability of the finished product, thus necessitating the installation of a high-efficiency filtration system. However, existing filtration equipment generally suffers from cumbersome cleaning processes after filter clogging, leading to prolonged downtime and reduced processing efficiency.

[0004] Chinese utility model patent CN222173219U discloses a filtration device for water-based paint production, relating to the field of water-based paint production technology. The device includes a housing with a vibration cleaning mechanism on its inner wall. The vibration cleaning mechanism includes a support ring, which is fixedly connected to the inner wall of the housing. A telescopic rod is fixedly connected to the top of the support ring. This utility model, through the vibration cleaning mechanism, can vibrate and clean impurities adhering to the surface of a filter plate. During use, a vibration motor is started to drive the filter plate to vibrate. During vibration, the contraction of the telescopic rod and the elasticity of the spring allow the filter plate to vibrate at a higher frequency, resulting in more thorough cleaning of impurities. This avoids the situation where impurities accumulate and clog the filter plate, preventing it from continuing to function properly, thus ensuring the device's usability and improving its cleaning efficiency. However, it cannot completely clean the filter screen, leading to low processing efficiency, and some water-based paint is discharged during cleaning, resulting in waste. Utility Model Content

[0005] The purpose of this invention is to provide a filtration device for the production of water-based paints, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filtration device for water-based paint production, comprising a base, on which a frame and wheels are fixedly mounted; a filter box is fixedly mounted on the frame; a sealing cover is fixedly mounted on the top of the filter box; a feed pipe is fixedly connected to the sealing cover; a discharge pipe is fixedly connected to the filter box; a valve is fixedly mounted on the discharge pipe; a fixing ring is provided inside the filter box; a coarse filter plate is fixedly mounted on the fixing ring; a fine filter assembly is fixedly mounted at the bottom of the filter box; the fine filter assembly includes a base plate, a filter cylinder, and a partition plate; a waste discharge hole is provided on the base plate; a feed hole is provided on the partition plate; the feed hole communicates with the waste discharge hole through the filter cylinder; a lifting device is fixedly mounted on the base; the lifting device includes a stud, a sleeve, and a support plate; a thread is provided on the inner wall of the sleeve; the thread engages with the stud; a handle is fixedly connected to the sleeve; the sleeve is fixedly connected to the support plate; a support plate is fixedly mounted on the support plate; a pin is provided on the support plate; the pin is sealed to the waste discharge hole.

[0007] Preferably, the insert is fixedly fitted with a sealing ring.

[0008] Preferably, a support rod is fixedly installed between the base plate and the partition.

[0009] Preferably, the sleeve is fixedly connected to the bearing plate via a bearing.

[0010] Preferably, the filter cartridge is made of stainless steel.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] During operation, the raw water-based paint enters the filter box through the feed pipe. Large pieces of impurities are filtered out by the coarse filter plate, and then filtered by the fine filter assembly to prevent large pieces from clogging or damaging the fine filter assembly. The water-based paint enters the filter cylinder through the feed hole, and after being filtered by the filter cylinder, it is discharged through the discharge pipe. Impurities sink to the bottom of the filter cylinder. When cleaning is required, the sleeve is rotated by the lever to lower the support plate, and then the support plate is removed, allowing the insert to be pulled out of the waste discharge hole. Impurities flow out from the waste discharge hole, quickly completing the cleaning operation and improving processing efficiency. Attached Figure Description

[0013] Figure 1 This is a structural view of the present invention.

[0014] Figure 2 This is a cross-sectional structural view of the present invention.

[0015] Figure 3 This is a structural view of the fine filter component of this utility model.

[0016] The diagram shows: 1. Base; 2. Frame; 3. Wheels; 4. Filter box; 5. Sealing cover; 6. Feed pipe; 7. Discharge pipe; 8. Valve; 9. Fixing ring; 10. Coarse filter plate; 11. Fine filter assembly; 12. Base plate; 13. Filter cartridge; 14. Partition plate; 15. Waste discharge hole; 16. Feed hole; 17. Lifting device; 18. Stud; 19. Sleeve; 20. Support plate; 21. Thread; 22. Handle rod; 23. Support plate; 24. Insert post; 25. Sealing ring; 26. Support rod; 27. Bearing. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1:

[0019] This utility model provides a filtration device for water-based paint production, including a base 1, on which a frame 2 and wheels 3 are fixedly mounted. A filter box 4 is fixedly mounted on the frame 2. A sealing cover 5 is fixedly mounted on the top of the filter box 4, and a feed pipe 6 is fixedly connected to the sealing cover 5. A discharge pipe 7 is fixedly connected to the filter box 4, and a valve 8 is fixedly mounted on the discharge pipe 7. A fixing ring 9 is provided inside the filter box 4, and a coarse filter plate 10 is fixedly mounted on the fixing ring 9. A fine filter assembly 11 is fixedly mounted on the bottom of the filter box 4, and the fine filter assembly 11 includes a base plate 12 and a filter cylinder 1. The filter cartridge 13 is connected to the filter tube 13 and the partition plate 14. The base plate 12 has a waste discharge hole 15, and the partition plate 14 has a feed hole 16. The feed hole 16 is connected to the waste discharge hole 15 through the filter tube 13. The base 1 is fixedly equipped with a lifting device 17, which includes a stud 18, a sleeve 19, and a support plate 20. The inner wall of the sleeve 19 has a thread 21, which engages with the stud 18. The sleeve 19 is fixedly connected to a handle 22 and is fixedly connected to the support plate 20. The support plate 20 is fixedly equipped with a support plate 23, which has a pin 24 that is sealed to the waste discharge hole 15. A sealing ring 25 is fixedly installed on the pin 24. A support rod 26 is fixedly installed between the base plate 12 and the partition plate 14. The sleeve 19 is fixedly connected to the support plate 20 through a bearing 27. The filter tube 13 is made of stainless steel.

[0020] Through the above technical solution, during operation, the raw water-based paint enters the filter box 4 through the feed pipe 6, filters out large pieces of impurities through the coarse filter plate 10, and then filters through the fine filter assembly 11 to prevent large pieces from clogging or damaging the fine filter assembly 11. The water-based paint enters the filter cylinder 13 through the feed hole 16, and after being filtered by the filter cylinder 13, it is discharged through the discharge pipe 7. Impurities sink to the bottom of the filter cylinder 13. When cleaning is required, the sleeve 19 is rotated by the lever 22 to lower the support plate 20, and then the support plate 23 is taken out, so that the insert 24 is pulled out of the waste discharge hole 15. Impurities flow out from the waste discharge hole 15, quickly completing the cleaning operation and improving processing efficiency.

[0021] Example 2:

[0022] In this embodiment, a frame 2 and wheels 3 are fixedly mounted on the base 1. A filter box 4 is fixedly mounted on the frame 2. A sealing cover 5 is fixedly mounted on the top of the filter box 4. A feed pipe 6 is fixedly connected to the sealing cover 5. A discharge pipe 7 is fixedly connected to the filter box 4. A valve 8 is fixedly mounted on the discharge pipe 7. A fixing ring 9 is provided inside the filter box 4. A coarse filter plate 10 is fixedly mounted on the fixing ring 9. A fine filter assembly 11 is fixedly mounted on the bottom of the filter box 4. The fine filter assembly 11 includes a base plate 12, a filter cylinder 13, and a partition plate 14. The base plate 12 is provided with... There is a waste discharge hole 15, and the partition plate 14 is provided with a feed hole 16. The feed hole 16 is connected to the waste discharge hole 15 through the filter cylinder 13. The base 1 is fixedly installed with a lifting device 17, which includes a stud 18, a sleeve 19 and a support plate 20. The inner wall of the sleeve 19 is provided with a thread 21, which is engaged with the stud 18. The sleeve 19 is fixedly connected with a handle 22. The sleeve 19 is fixedly connected to the support plate 20. The support plate 20 is fixedly installed with a support plate 23. The support plate 23 is provided with a pin 24, which is sealed to the waste discharge hole 15.

[0023] During operation, the water-based paint raw material enters the filter box 4 through the feed pipe 6. It first undergoes preliminary filtration through the coarse filter plate 10, which intercepts large mechanical impurities and gelled particles, preventing these large debris from directly entering the fine filter assembly 11 and causing blockage or damage. After being filtered by the coarse filter plate 10, the water-based paint continues to flow downwards into the area of ​​the fine filter assembly 11. The fine filter assembly 11 consists of a base plate 12, a filter cartridge 13, and a partition plate 14. The partition plate 14 has a feed hole 16 through which the water-based paint enters the filter cartridge 13. The filter cartridge 13 uses high-precision filter material, which further filters out fine dust and particles, ensuring the purity of the water-based paint. The filtered clean water-based paint is discharged from the discharge pipe 7, while the impurities trapped during the filtration process gradually settle at the bottom of the filter cartridge 13.

[0024] As the filtration process proceeds, impurities accumulate at the bottom of the filter cartridge 13, potentially leading to decreased filtration efficiency or clogging. In this case, cleaning is required to restore normal operation. During cleaning, the operator rotates the lever 22, causing the sleeve 19 to rotate. Since the inner wall of the sleeve 19 has threads 21 that engage with the stud 18, the rotation of the sleeve 19 is converted into the vertical lifting and lowering motion of the support plate 20. As the support plate 20 descends, the support plate 23 descends accordingly, causing the insertion post 24 to be pulled out of the waste discharge hole 15. Once the insertion post 24 separates from the waste discharge hole 15, the impurities accumulated at the bottom of the filter cartridge 13 are quickly discharged through the waste discharge hole 15, completing the cleaning process. After cleaning, the lever 22 is rotated in the opposite direction, causing the support plate 20 to rise, and the insertion post 24 on the support plate 23 is reinserted into the waste discharge hole 15, achieving a sealed connection, and the device can then be put back into filtration operation.

[0025] This embodiment effectively removes impurities from water-based paint through a dual filtration design of coarse filter plate 10 and fine filter assembly 11, improving the gloss and adhesion of the finished product. The introduction of lifting device 17 simplifies and speeds up the cleaning process, reducing downtime and improving production efficiency. Simultaneously, the sealed connection between the insertion column 24 and the waste discharge hole 15 ensures airtightness during the filtration process, preventing leakage and waste of water-based paint. The entire device has a reasonable structure, is easy to operate, and is suitable for the high-efficiency filtration needs in water-based paint production.

[0026] Example 3:

[0027] In this embodiment, a frame 2 and wheels 3 are fixedly mounted on the base 1. A filter box 4 is fixedly mounted on the frame 2. A sealing cover 5 is fixedly mounted on the top of the filter box 4. A feed pipe 6 is fixedly connected to the sealing cover 5. A discharge pipe 7 is fixedly connected to the filter box 4. A valve 8 is fixedly mounted on the discharge pipe 7. A fixing ring 9 is provided inside the filter box 4. A coarse filter plate 10 is fixedly mounted on the fixing ring 9. A fine filter assembly 11 is fixedly mounted on the bottom of the filter box 4. The fine filter assembly 11 includes a bottom plate 12, a filter cylinder 13, and a partition plate 14. The bottom plate 12 is provided with a waste discharge hole 15, and the partition plate 14 is provided with a feed hole 16. 6. The feed hole 16 is connected to the waste discharge hole 15 through the filter cylinder 13. The base 1 is fixedly installed with a lifting device 17, which includes a stud 18, a sleeve 19 and a support plate 20. The inner wall of the sleeve 19 is provided with a thread 21, which is engaged with the stud 18. The sleeve 19 is fixedly connected with a handle 22. The sleeve 19 is fixedly connected to the support plate 20. The support plate 20 is fixedly installed with a support plate 23. The support plate 23 is provided with a pin 24, which is sealed to the waste discharge hole 15. The pin 24 is fixedly installed with a sealing ring 25 to improve the sealing performance of the connection between the pin 24 and the waste discharge hole 15.

[0028] During operation, the raw water-based paint enters the filter box 4 through the feed pipe 6. It first undergoes preliminary filtration through the coarse filter plate 10, which effectively intercepts large debris, preventing it from entering the subsequent fine filter assembly 11 and thus avoiding clogging or damage to the fine filtration system. After coarse filtration, the water-based paint continues to flow downwards into the fine filter assembly 11. The fine filter assembly 11 consists of a base plate 12, a filter cartridge 13, and a partition plate 14. The partition plate 14 has a feed hole 16 through which the water-based paint enters the filter cartridge 13. The filter cartridge 13 uses fine filter material to further remove fine impurities such as dust and gelled particles, ensuring the purity of the water-based paint. The filtered clean water-based paint is discharged from the discharge pipe 7, while impurities gradually settle to the bottom of the filter cartridge 13 due to gravity.

[0029] When cleaning is required, the operator drives the sleeve 19 by rotating the lever 22. Since the thread 21 on the inner wall of the sleeve 19 engages with the stud 18, the rotation causes the sleeve 19 to move axially along the stud 18, thereby raising or lowering the support plate 20. When the support plate 20 lowers, the support plate 23 moves accordingly, causing the insert 24 to be pulled out of the waste discharge hole 15. The sealing ring 25 fixedly installed on the insert 24 ensures a tight connection between the insert 24 and the waste discharge hole 15 during normal filtration, preventing water-based paint leakage and improving sealing to prevent external contaminants from entering the system. Once the insert 24 is pulled out, impurities accumulated at the bottom of the filter cartridge 13 are quickly discharged through the waste discharge hole 15, achieving efficient cleaning. This process does not require disassembling the entire device, significantly reducing downtime and improving production efficiency. After cleaning, the support plate 20 is raised by rotating the lever 22 in the opposite direction. The support plate 23 then reinserts the insertion post 24 into the waste discharge hole 15. The sealing ring 25 ensures the seal at the connection point again, and the device can resume normal filtration operation.

[0030] This embodiment enhances the sealing performance between the insert 24 and the waste discharge hole 15 through the design of the sealing ring 25, effectively preventing leakage problems during the filtration process, ensuring the high efficiency and stability of water-based paint production, while simplifying the cleaning process and reducing resource waste.

[0031] Example 4:

[0032] In this embodiment, a frame 2 and wheels 3 are fixedly mounted on the base 1. A filter box 4 is fixedly mounted on the frame 2. A sealing cover 5 is fixedly mounted on the top of the filter box 4. A feed pipe 6 is fixedly connected to the sealing cover 5. A discharge pipe 7 is fixedly connected to the filter box 4. A valve 8 is fixedly mounted on the discharge pipe 7. A fixing ring 9 is provided inside the filter box 4. A coarse filter plate 10 is fixedly mounted on the fixing ring 9. A fine filter assembly 11 is fixedly mounted on the bottom of the filter box 4. The fine filter assembly 11 includes a bottom plate 12, a filter cylinder 13, and a partition plate 14. The bottom plate 12 is provided with a waste discharge hole 15, and the partition plate 14 is provided with a feed hole 16. The feed port 16 is connected to the waste discharge port 15 through the filter cartridge 13. The base 1 is fixedly installed with a lifting device 17, which includes a stud 18, a sleeve 19 and a support plate 20. The inner wall of the sleeve 19 is provided with a thread 21, which is engaged with the stud 18. The sleeve 19 is fixedly connected with a handle 22 and is fixedly connected to the support plate 20. The support plate 20 is fixedly installed with a support plate 23, which is provided with a pin 24. The pin 24 is sealed to the waste discharge port 15. A support rod 26 is fixedly installed between the bottom plate 12 and the partition plate 14 to improve the overall structural rigidity of the fine filter assembly 11.

[0033] During operation, the raw water-based paint enters the filter box 4 through the feed pipe 6. It first undergoes preliminary filtration through the coarse filter plate 10. The coarse filter plate 10 can effectively intercept large pieces of debris, preventing these large particles from entering the fine filter assembly 11, thus avoiding clogging or damage to the fine filter assembly 11, thereby extending the service life of the equipment and improving filtration efficiency. After coarse filtration, the water-based paint continues to flow downwards and enters the fine filter assembly 11. The fine filter assembly 11 consists of a base plate 12, a filter cylinder 13, and a partition plate 14. The partition plate 14 is provided with a feed hole 16. The water-based paint enters the interior of the filter cylinder 13 through the feed hole 16. The filter cylinder 13 is made of high-precision filter material, which can effectively remove fine impurities in the water-based paint, such as mechanical impurities, dust, and gelled particles. If these impurities remain in the water-based paint, they will directly affect the gloss, adhesion, and storage stability of the finished product. The filtered clean water-based paint is discharged from the discharge pipe 7 and enters the next production stage, while the impurities intercepted during the filtration process gradually settle to the bottom of the filter cylinder 13.

[0034] A support rod 26 is fixedly installed between the base plate 12 and the partition plate 14. This structural design significantly enhances the overall rigidity of the fine filter assembly 11. The support rod 26 is made of a sturdy material and is installed vertically or obliquely between the base plate 12 and the partition plate 14 to form a stable support frame. It can effectively resist the vibration and pressure changes generated during the filtration process, prevent the fine filter assembly 11 from deforming or displacing due to long-term stress, and ensure the stability and continuity of the filtration process. At the same time, the presence of the support rod 26 also improves the structural integrity of the fine filter assembly 11, enabling it to maintain efficient operation during high-speed filtration or high-viscosity water-based paint treatment, and reducing the decrease in filtration efficiency or equipment failure caused by structural loosening.

[0035] When the fine filter assembly 11 needs to be cleaned, the operator drives the sleeve 19 by rotating the lever 22. The thread 21 inside the sleeve 19 engages with the stud 18, causing the support plate 20 to descend along the stud 18. The support plate 23, which is fixedly installed on the support plate 20, moves downward accordingly. The insert 24 on the support plate 23 is pulled out from the waste discharge hole 15 of the bottom plate 12, releasing the sealing connection. The impurities accumulated at the bottom of the filter cartridge 13 automatically flow out through the waste discharge hole 15, achieving rapid cleaning. This cleaning process does not require disassembling the entire filter device, greatly shortening downtime and improving production efficiency. At the same time, it avoids the problem of frequent manual cleaning due to filter screen clogging in traditional filter equipment. The structural rigidity of the support rod 26 ensures that the fine filter assembly 11 remains stable during lifting and cleaning operations, preventing damage to the assembly or failure of the seal due to uneven force.

[0036] Through the above embodiments, the filtration device not only achieves efficient filtration and rapid cleaning, but also improves the durability and reliability of the equipment through the structural optimization of the support rod 26. It is suitable for the continuous operation needs in water-based paint production and effectively solves the industry problem of cumbersome impurity removal and cleaning.

[0037] Example 5:

[0038] In this embodiment, a frame 2 and wheels 3 are fixedly mounted on the base 1. A filter box 4 is fixedly mounted on the frame 2. A sealing cover 5 is fixedly mounted on the top of the filter box 4. A feed pipe 6 is fixedly connected to the sealing cover 5. A discharge pipe 7 is fixedly connected to the filter box 4. A valve 8 is fixedly mounted on the discharge pipe 7. A fixing ring 9 is provided inside the filter box 4. A coarse filter plate 10 is fixedly mounted on the fixing ring 9. A fine filter assembly 11 is fixedly mounted on the bottom of the filter box 4. The fine filter assembly 11 includes a base plate 12, a filter cylinder 13, and a partition plate 14. The base plate 12 is provided with... The system includes a waste discharge hole 15 and a feed hole 16 on a partition plate 14. The feed hole 16 communicates with the waste discharge hole 15 via a filter cartridge 13. A lifting device 17 is fixedly installed on the base 1. The lifting device 17 includes a stud 18, a sleeve 19, and a support plate 20. The inner wall of the sleeve 19 has a thread 21 that engages with the stud 18. A handle 22 is fixedly connected to the sleeve 19, and the sleeve 19 is fixedly connected to the support plate 20. A support plate 23 is fixedly installed on the support plate 20, and the support plate 23 has a pin 24 that is sealed to the waste discharge hole 15. The sleeve 19 is fixedly connected to the support plate 20 via a bearing 27. When the sleeve 19 is rotated via the handle 22, the support plate 20 must remain stationary to prevent wear between the support plate 20 and the support plate 23.

[0039] During the operation of the filtration device, the raw water-based paint enters the filter box 4 through the feed pipe 6. It first undergoes preliminary filtration through the coarse filter plate 10, which effectively intercepts large pieces of debris, preventing them from entering the subsequent fine filter assembly 11 and avoiding blockage or damage. The coarsely filtered water-based paint continues to flow downwards into the fine filter assembly 11. The fine filter assembly 11 consists of a base plate 12, a filter cartridge 13, and a partition plate 14. The partition plate 14 has a feed hole 16 through which the water-based paint enters the filter cartridge 13. The filter cartridge 13 uses fine filter material, which further filters out fine impurities in the water-based paint, such as dust and gelled particles, ensuring the quality of the final product. The filtered clean water-based paint flows out of the filter cartridge 13 and is discharged through the discharge pipe 7, while impurities gradually sink and accumulate at the bottom of the filter cartridge 13 due to gravity.

[0040] When the filter needs cleaning, the operator drives the sleeve 19 to rotate by rotating the lever 22. Since the inner wall of the sleeve 19 has threads 21 that engage with the stud 18, the rotation of the sleeve 19 is converted into the linear lifting and lowering motion of the stud 18. The sleeve 19 is fixedly connected to the support plate 20 via a bearing 27. This design ensures that the support plate 20 remains stationary when the sleeve 19 is rotated and does not rotate with the sleeve 19. The stationary position of the support plate 20 prevents relative movement between it and the support plate 23, thus avoiding wear caused by friction and extending the service life of the device. As the stud 18 descends, the support plate 20 and the support plate 23 fixed on it move downwards together. The support plate 23 has a pin 24, which originally forms a sealed connection with the waste discharge hole 15 of the base plate 12 to prevent impurity leakage. When the support plate 23 descends, the pin 24 is gradually pulled out of the waste discharge hole 15, breaking the original seal. Impurities accumulated at the bottom of the filter cartridge 13 then flow out smoothly through the waste discharge hole 15, achieving rapid cleaning. This process does not require disassembling the entire filter assembly, significantly reducing downtime and improving production efficiency and ease of operation. After cleaning, rotating the lever 22 in the reverse direction raises the support plate 23, allowing the insert 24 to be reinserted into the waste discharge hole 15 to restore the seal, and the device can then be put back into operation. The entire design optimizes the filtration and cleaning process, effectively solving the problems of easy filter clogging, cumbersome cleaning, and waste of water-based paint in existing technologies.

[0041] Example 6:

[0042] In this embodiment, a frame 2 and wheels 3 are fixedly mounted on the base 1. A filter box 4 is fixedly mounted on the frame 2. A sealing cover 5 is fixedly mounted on the top of the filter box 4. A feed pipe 6 is fixedly connected to the sealing cover 5. A discharge pipe 7 is fixedly connected to the filter box 4. A valve 8 is fixedly mounted on the discharge pipe 7. A fixing ring 9 is provided inside the filter box 4. A coarse filter plate 10 is fixedly mounted on the fixing ring 9. A fine filter assembly 11 is fixedly mounted on the bottom of the filter box 4. The fine filter assembly 11 includes a bottom plate 12, a filter cylinder 13, and a partition plate 14. The bottom plate 12 is provided with a waste discharge hole 15. The partition 14 is provided with a feed hole 16, which is connected to the waste discharge hole 15 through the filter cylinder 13. The base 1 is fixedly installed with a lifting device 17, which includes a stud 18, a sleeve 19 and a support plate 20. The inner wall of the sleeve 19 is provided with a thread 21, which is engaged with the stud 18. The sleeve 19 is fixedly connected with a handle 22 and is fixedly connected to the support plate 20. The support plate 20 is fixedly installed with a support plate 23, which is provided with a pin 24. The pin 24 is sealed to the waste discharge hole 15. The filter cylinder 13 is made of stainless steel.

[0043] In this embodiment, the filter cartridge 13 is made of stainless steel, ensuring its durability and corrosion resistance during the filtration of water-based paints. Stainless steel has excellent mechanical strength and chemical stability, capable of withstanding the slight acidic or alkaline components that may be present in water-based paints. It will not rust or degrade over long-term use, thus maintaining stable filtration performance. Furthermore, the smooth surface of stainless steel is easy to clean, reducing the risk of impurities adhering and clogging, which helps extend the service life of the filter cartridge 13 and reduce maintenance frequency.

[0044] During the filtration process, the raw water-based paint enters the filter box 4 through the feed pipe 6. It first undergoes preliminary filtration through the coarse filter plate 10 to remove large impurities such as gelled particles or mechanical impurities, preventing these large particles from directly entering the fine filter assembly 11 and causing blockage or damage. The coarsely filtered water-based paint flows into the fine filter assembly 11 and enters the filter cartridge 13 through the feed hole 16 on the partition plate 14. The filter cartridge 13, as the core filtration unit, has a stainless steel structure that allows the water-based paint to undergo fine filtration through its micropores, removing smaller impurities such as dust or fine particles, ensuring the gloss, adhesion, and storage stability of the finished paint. The filtered clean water-based paint is discharged from the discharge pipe 7, while the impurities captured during the filtration process gradually settle to the bottom of the filter cartridge 13.

[0045] When the impurities accumulated at the bottom of the filter cartridge 13 reach a certain level, a cleaning operation is required to restore filtration efficiency. At this time, the operator drives the sleeve 19 by rotating the lever 22. The thread 21 inside the sleeve 19 engages with the stud 18, causing the support plate 20 to descend vertically. The descent of the support plate 20 moves the tray 23, and the insert 24 on the tray 23 is pulled out of the waste discharge hole 15 of the base plate 12, releasing the seal. Impurities and residues automatically flow out through the waste discharge hole 15, achieving rapid cleaning. After cleaning, rotating the lever 22 in the opposite direction raises the support plate 20, re-inserting the insert 24 into the waste discharge hole 15 to form a seal, preparing for the next filtration cycle. The entire cleaning process does not require disassembling the filter cartridge 13 or other components, reducing downtime and improving production efficiency and resource utilization.

[0046] The application of the stainless steel filter cartridge 13 further optimizes the performance of this filtration device. Its corrosion resistance ensures that no material degradation occurs during frequent contact with water-based paints and cleaning agents, thus maintaining consistent filtration accuracy. Simultaneously, the rigid structure of the stainless steel supports mechanical stress during lifting operations, preventing deformation or damage and guaranteeing the reliability and long-term operational stability of the device. Through this design, the filtration device effectively solves the problems of cumbersome filter cleaning, low processing efficiency, and paint waste inherent in existing technologies, providing a highly efficient, environmentally friendly, and easy-to-maintain solution.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A filtration device for water-based paint production, comprising a base, a frame and wheels fixedly mounted on the base, a filter box fixedly mounted on the frame, a sealing cover fixedly mounted on the top of the filter box, an inlet pipe fixedly connected to the sealing cover, an outlet pipe fixedly connected to the filter box, and a valve fixedly mounted on the outlet pipe, characterized in that... The filter box has a fixing ring inside, on which a coarse filter plate is fixedly installed. A fine filter assembly is fixedly installed at the bottom of the filter box. The fine filter assembly includes a base plate, a filter cylinder, and a partition plate. The base plate has a waste discharge hole, and the partition plate has a feed hole. The feed hole communicates with the waste discharge hole through the filter cylinder. A lifting device is fixedly installed on the base. The lifting device includes a stud, a sleeve, and a support plate. The inner wall of the sleeve has threads, which engage with the stud. A handle is fixedly connected to the sleeve. The sleeve is fixedly connected to the support plate through a bearing. A support plate is fixedly installed on the support plate. The support plate has a pin, which is sealed to the waste discharge hole.

2. The filtration device for water-based paint production according to claim 1, characterized in that, The insertion post is fixedly installed with a sealing ring.

3. A filtration device for water-based paint production according to claim 1, characterized in that, A support rod is fixedly installed between the base plate and the partition.

4. A filtration device for water-based paint production according to claim 1, characterized in that, The filter cartridge is made of stainless steel.

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