Paint filtering apparatus with automatic screen cleaning
By introducing a combination of rotating grooves and flushing nozzles into the paint filtration equipment, the problems of wear and paint residue during brush cleaning are solved, achieving automatic cleaning and efficient filtration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIDANLONG DOPE (CHANGZHOU) CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-14
AI Technical Summary
In existing paint filtration equipment, the brush may wear down during the cleaning process, producing debris that mixes into the paint and contaminates the equipment. Furthermore, paint residue can affect the cleaning effect.
It adopts a combination structure of rotating tank and rinsing nozzle. The filter tank is driven to rotate by a motor and water is supplied by a water pump for automatic cleaning, avoiding brush wear and paint residue.
It achieves automatic cleaning without debris contamination, improves the cleaning efficiency and stability of the filtration equipment, and reduces maintenance costs.
Smart Images
Figure CN224485115U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating filtration technology, specifically a coating filtration device with automatic filter cleaning function. Background Technology
[0002] Paint filtration is an important treatment process before paint production, storage, or application. It primarily uses filtration equipment to remove impurities, particles, undispersed pigments, resin clumps, and other foreign matter that may be present in the paint. The purpose is to ensure a uniform and fine paint texture, prevent these impurities from affecting subsequent application, protect the spraying equipment from clogging, and ultimately improve the application quality and stability of the paint.
[0003] The existing Chinese patent publication number CN221831757U, entitled "A Water-Based Coating Filtration Device," explicitly states in its abstract that "This utility model relates to the field of water-based coating production technology, disclosing a water-based coating filtration device, including a filter cylinder. An inclined surface is fixedly connected inside the filter cylinder, and a liquid outlet is opened at the top of the inclined surface. An annular groove is opened inside the filter cylinder. A discharge pipe is fixedly connected to the outer wall of the filter cylinder. A filter plate is fixedly connected inside the filter cylinder. A motor is fixedly connected to the top of the filter cylinder. A rotating shaft is fixedly connected to the output end of the motor. The outer wall of the rotating shaft passes through the inside of the filter plate. A support rod is fixedly connected to the outer wall of the rotating shaft. A scraper is fixedly connected to the outer wall of the rotating shaft, and the outer wall of the scraper is attached to the inner wall of the filter cylinder. A limit plate is slidably connected inside the support rod. In this utility model, the rotating shaft is driven by the motor to rotate, and the rotating shaft cleans the filter plate through the brush on the support rod, achieving the effect of cleaning the filter plate. This solves the problem affecting the practicality of the water-based coating filtration device and improves its usability."
[0004] However, in the existing technology, the internal filter plate is cleaned by brushes. Although this can remove impurities from the surface of the filter plate to a certain extent, the brushes may wear down due to friction during the cleaning process. The resulting debris may also mix into the paint or contaminate the filtration equipment, increasing the equipment maintenance cost and the risk of secondary pollution after cleaning. Furthermore, when filtering paint, some paint may remain on the brushes, affecting the cleaning effect of the brushes themselves. Utility Model Content
[0005] The purpose of this utility model is to provide a paint filtration device with an automatic filter cleaning function, in order to solve the problems mentioned in the background art, such as the brushes may wear down due to friction during the cleaning process, and the generated debris may mix into the paint or contaminate the filtration device, and when filtering the paint, some paint may remain on the brushes, affecting the cleaning effect of the brushes themselves.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A paint filtration device with automatic filter cleaning function includes a mounting frame, a rotating frame is provided at the middle position of the mounting frame, a filter tank is rotatably arranged inside the rotating frame, and a cleaning component is provided at the top of the mounting frame;
[0008] The cleaning assembly includes a rotating groove, inside which a rotating ring is rotatably disposed, and a cross-shaped cleaning tube is disposed on the inner side of the rotating ring, with a rinsing nozzle disposed on the top of the cross-shaped cleaning tube.
[0009] In a preferred embodiment of this utility model, a filter screen is provided at the top of the filter tank, and a receiving hopper is provided below the filter screen.
[0010] In a preferred embodiment of this utility model, a first motor is provided on one side of the rotating frame, and the output end of the first motor is connected to the filter tank.
[0011] In a preferred embodiment of the present invention, a rectangular groove is provided on the other side of the rotating frame, a rectangular block is slidably disposed inside the rectangular groove, a rectangular opening is provided on one side of the filter groove, and one side of the rectangular block is detached and assembled in the rectangular opening.
[0012] In a preferred embodiment of this utility model, an electric telescopic rod is provided on the outside of the rectangular groove, and the telescopic end of the electric telescopic rod is connected to the rectangular block.
[0013] In a preferred embodiment of this utility model, a second motor is provided on one side of the top of the rotating groove, and a drive gear is provided on the output end of the second motor.
[0014] In a preferred embodiment of this utility model, an external gear is provided on the outer side of the top of the rotating ring, and the driving gear meshes with the external gear.
[0015] In a preferred embodiment of this utility model, a water pump is provided on the other side of the top of the rotating groove, and the water outlet of the water pump is connected to and connected to the cross-shaped cleaning pipe via a hose.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
[0017] Beneficial effects: When the filter tank needs cleaning, the first motor drives the filter tank to rotate 180°, so that the filter tank faces downward. The electric telescopic rod pushes the rectangular block into the rectangular opening, thereby reinforcing the position of the filter tank and preventing it from rotating. Water is pumped and delivered to the cross-shaped cleaning pipe, and sprayed out through the flushing nozzles, thus automatically cleaning the filter tank. Compared with brush cleaning, water flushing avoids brush debris from mixing into the paint or contaminating the filtration equipment, and paint will not remain on the cleaning structure. The second motor continuously drives the drive gear to rotate forward and backward, thereby driving the external gear and rotating ring to rotate back and forth 90° continuously. The flushing nozzles at the bottom rotate synchronously, thus ensuring cleaning of different parts of the filter tank.
[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description
[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0020] Figure 1 A schematic diagram of the main structure of a paint filtration device with automatic filter cleaning function;
[0021] Figure 2 A schematic diagram of the filter tank installation structure in a paint filtration device with automatic filter cleaning function;
[0022] Figure 3 A schematic diagram of the internal structure of a rectangular tank in a paint filtration device with automatic filter cleaning function;
[0023] Figure 4 A schematic diagram of the filter tank structure in a paint filtration device with automatic filter cleaning function;
[0024] Figure 5 This is a schematic diagram of the rotating ring structure in a paint filtration device with automatic filter cleaning function.
[0025] In the diagram: 1. Mounting frame; 11. Rotating frame; 12. Filter tank; 13. Filter screen; 14. Receiving hopper; 2. First motor; 21. Rectangular groove; 22. Rectangular block; 23. Electric telescopic rod; 24. Rectangular opening; 3. Rotating groove; 31. Rotating ring; 32. Cross cleaning pipe; 33. Flushing nozzle; 34. External gear; 4. Second motor; 41. Drive gear; 42. Water pump. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0027] Please refer to Figures 1-5 This utility model relates to a paint filtration device with an automatic filter cleaning function. It includes a mounting frame 1, which is an installation structure used to install other structures. A rotating frame 11 is fixedly installed at the middle of the mounting frame 1. A filter tank 12 is rotatably installed inside the rotating frame 11. A filter screen 13 is installed at the top of the filter tank 12. Paint is poured into the filter tank 12 and filtered through the filter screen 13. A receiving hopper 14 is installed below the filter screen 13. A receiving container is placed at the bottom of the receiving hopper 14. The filtered paint falls into the receiving hopper 14 and flows into the container for collection.
[0028] A first motor 2, which is a stepper motor, is installed on one side of the rotating frame 11. The output end of the first motor 2 is connected to the filter tank 12. When the filter tank 12 needs to be cleaned, the first motor 2 drives the filter tank 12 to rotate 180°, at which time the filter tank 12 faces downward. A rectangular groove 21 is installed on the other side of the rotating frame 11. A rectangular block 22 is slidably installed inside the rectangular groove 21. A rectangular opening 24 is provided on one side of the filter tank 12. The rectangular block 22 is installed and removed from one side of the rectangular opening 24. When the filter tank 12 faces upward or downward, the rectangular block 22 can be connected to the rectangular opening 24. An electric telescopic rod 23 is installed on the outside of the rectangular groove 21. The telescopic end of the electric telescopic rod 23 is connected to the rectangular block 22. That is, the electric telescopic rod 23 pushes the rectangular block 22 into the rectangular opening 24, thereby reinforcing the position of the filter tank 12 and preventing the filter tank 12 from rotating during filtration or cleaning.
[0029] The top of the mounting bracket 1 is equipped with a cleaning component, which includes a rotating groove 3. A rotating ring 31 is rotatably mounted inside the rotating groove 3. A cross-shaped cleaning pipe 32 is mounted inside the rotating ring 31. A rinsing nozzle 33 is connected to the top of the cross-shaped cleaning pipe 32. A water pump 42 is mounted on one side of the top of the rotating groove 3. The water outlet of the water pump 42 is connected to the cross-shaped cleaning pipe 32 via a hose of appropriate length. The water pump 42 is connected to a water source via a hose, so that water is pumped by the water pump 42 and delivered to the cross-shaped cleaning pipe 32. The water is then sprayed out through the rinsing nozzle 33, thereby automatically cleaning the filter tank 12.
[0030] A second motor 4 is installed on the other side of the top of the rotating tank 3. The second motor 4 is a servo motor. A drive gear 41 is installed on the output end of the second motor 4. An external gear 34 is installed on the outer side of the top of the rotating ring 31. The drive gear 41 meshes with the external gear 34. The second motor 4 continuously drives the drive gear 41 to rotate forward and backward. This was pre-tested, thereby driving the external gear 34 and the rotating ring 31 to rotate back and forth 90° continuously. The rinsing nozzle 33 at the bottom rotates synchronously, thereby ensuring cleaning of different positions of the filter tank 12. All electrical equipment in the device is controlled by the same external computer PLC intelligent controller. Equipment that needs to be pre-tested is pre-tested, and equipment that needs an external power supply is powered by an external power supply. This is a conventional technical method for those skilled in the art.
[0031] The working principle of this utility model is as follows: paint is poured into the filter tank 12, and then filtered through the filter screen 13. The filtered paint falls into the receiving hopper 14 and flows into the container for collection. When the filter tank 12 needs to be cleaned, the first motor 2 drives the filter tank 12 to rotate 180°, so that the filter tank 12 faces downward. When the filter tank 12 faces upward or downward, the rectangular block 22 can be connected to the rectangular opening 24. The electric telescopic rod 23 pushes the rectangular block 22 into the rectangular opening 24, thereby reinforcing the position of the filter tank 12 and preventing the filter tank 12 from rotating during filtration or cleaning. The water pump 42 pumps water and delivers it to the cross cleaning pipe 32, which is sprayed out through the flushing nozzle 33 to automatically clean the filter tank 12. The second motor 4 continuously drives the drive gear 41 to rotate forward and backward, thereby driving the external gear 34 and the rotating ring 31 to rotate back and forth 90° continuously. The flushing nozzle 33 at the bottom rotates synchronously, thereby ensuring cleaning of different positions of the filter tank 12.
[0032] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A paint filtration device with automatic filter cleaning function, characterized in that: Includes a mounting frame (1), a rotating frame (11) is provided at the middle position of the mounting frame (1), a filter groove (12) is rotatably provided inside the rotating frame (11), and a cleaning component is provided at the top of the mounting frame (1); The cleaning assembly includes a rotating groove (3), inside which a rotating ring (31) is rotatably arranged, and a cross-shaped cleaning tube (32) is arranged inside the rotating ring (31), and a rinsing nozzle (33) is arranged at the top of the cross-shaped cleaning tube (32).
2. The paint filtration device with automatic filter cleaning function according to claim 1, characterized in that, A filter screen (13) is provided at the top of the filter tank (12), and a receiving hopper (14) is provided below the filter screen (13).
3. The paint filtration device with automatic filter cleaning function according to claim 1, characterized in that, A first motor (2) is provided on one side of the rotating frame (11), and the output end of the first motor (2) is connected to the filter tank (12).
4. The paint filtration device with automatic filter cleaning function according to claim 3, characterized in that, A rectangular groove (21) is provided on the other side of the rotating frame (11), and a rectangular block (22) is slidably arranged inside the rectangular groove (21). A rectangular opening (24) is provided on one side of the filter tank (12), and one side of the rectangular block (22) is disassembled and assembled in the rectangular opening (24).
5. The paint filtration device with automatic filter cleaning function according to claim 4, characterized in that, An electric telescopic rod (23) is provided on the outside of the rectangular groove (21), and the telescopic end of the electric telescopic rod (23) is connected to the rectangular block (22).
6. The paint filtration device with automatic filter cleaning function according to claim 1, characterized in that, A second motor (4) is provided on one side of the top of the rotating groove (3), and a drive gear (41) is provided on the output end of the second motor (4).
7. The paint filtration device with automatic filter cleaning function according to claim 6, characterized in that, An external gear (34) is provided on the outer side of the top of the rotating ring (31), and the driving gear (41) meshes with the external gear (34).
8. The paint filtration device with automatic filter cleaning function according to claim 6, characterized in that, A water pump (42) is provided on the other side of the top of the rotating groove (3), and the water outlet of the water pump (42) is connected to the cross cleaning pipe (32) via a hose.