Etching liquid filtering and impurity removing device
By designing an etching solution filtration and impurity removal device, and utilizing the lateral and vertical movement of the movable box, stable alternating use and thorough cleaning of the filter plates are achieved. This solves the problems of limited visibility and incomplete cleaning in existing technologies, and improves the filtration effect and equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI CHENGHUA ELECTRONIC CHEM CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-31
AI Technical Summary
Existing etching solution filtration and impurity removal devices have limited visibility when cleaning filter plates, making it difficult to thoroughly remove stubborn impurities and resulting in poor cleaning effects.
An etching solution filtration and impurity removal device was designed, which uses components such as a filter box, support plate, movable box, servo motor, threaded rod and electric telescopic rod. By moving the movable box horizontally and vertically, the filter plates can be used stably and alternately and thoroughly cleaned, ensuring filtration effect and equipment reliability.
It provides ample visibility and convenient cleaning conditions, ensuring the stability and reliability of alternating filter plates, improving filtration efficiency and equipment reliability, and preventing etching solution leakage.
Smart Images

Figure CN224573365U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of etching solution filtration and impurity removal technology, specifically to an etching solution filtration and impurity removal device. Background Technology
[0002] Etching solutions are widely used in industries such as electronics and machinery to etch materials such as metals. During the etching process, the etching solution continuously dissolves the material being etched, generating various impurities such as metal particles and suspended matter. These impurities affect the etching effect and lifespan of the etching solution, reducing the quality of the etched products.
[0003] Chinese Patent No. CN222900461U discloses an etching solution filtration and impurity removal device, which includes a barrel body. An inlet is installed at the top of the barrel body, a vent is installed at the left end of the barrel body, and an outlet is installed at the bottom end of the barrel body. A filter assembly, including a rotating shaft, is arranged on the inner wall of the barrel body. In this invention, by setting a reusable filter assembly, when one set of filter plates becomes clogged, another set of filter plates can be used for filtration by adjusting the rotating shaft. Simultaneously, the clogged filter plates can be cleaned, thus eliminating the need to open the device for cleaning.
[0004] Regarding the aforementioned technologies, the method of cleaning the filter plates inside the tank using cleaning agents has certain limitations in practical applications. On the one hand, due to the limited cleaning field of view, it is difficult to accurately determine whether the filter plates have been thoroughly cleaned; on the other hand, this cleaning method cannot guarantee the effective removal of stubborn impurities adhering to the filter plates. Therefore, it is necessary to provide an etching solution filtration and impurity removal device to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide an etching solution filtration and impurity removal device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An etching solution filtration and impurity removal device, comprising:
[0008] A filter box, wherein a partition is fixedly installed inside the filter box, symmetrically distributed filter plates are fixedly installed on the top of the filter box, symmetrically distributed support plates are fixedly installed on the top of the filter box, a fixing frame is fixedly installed on the top of the support plate, and a top plate is fixedly installed on the fixing frame.
[0009] Mounting brackets are fixedly installed on the inner surfaces of both support plates. A threaded rod is rotatably installed on one of the mounting brackets. A movable plate is sleeved on the outer wall of the threaded rod. A movable box is provided at the bottom of the movable plate. A feed hopper is fixedly inserted into the top of the top plate. A connecting hose is fixedly connected between the bottom end of the feed hopper and the movable box.
[0010] Drainage pipes are fixedly installed on both sides of the bottom of the filter box. A servo motor is fixedly installed on one side of one of the mounting brackets, and the drive end of the servo motor passes through the mounting bracket and is fixedly connected to one end of the threaded rod.
[0011] Preferably, an electric telescopic rod is fixedly installed on the top of the movable plate, and the driving end of the electric telescopic rod passes through the movable plate and is fixedly connected to the top of the movable box.
[0012] Preferably, a limiting rod is fixedly installed on another mounting bracket, and a sliding hole adapted to the limiting rod is provided on the movable plate, and the movable plate is slidably connected to the limiting rod through the sliding hole provided thereon.
[0013] Preferably, the top of the movable box is fixedly equipped with symmetrically distributed stabilizing rods, and the movable plate is provided with sliding holes corresponding to the position and number of stabilizing rods, and the movable plate is slidably connected to the stabilizing rods through the sliding holes provided thereon.
[0014] Preferably, a sealing gasket is adhered to the bottom of the movable box, and symmetrically distributed support legs are fixedly installed on both sides of the bottom of the filter box. An air extraction pipe is fixedly installed on the rear side of the top of the movable box.
[0015] Preferably, the movable plate has a threaded hole that matches the threaded rod, and the movable plate is threadedly connected to the threaded rod through the threaded hole.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This utility model utilizes the combined use of a filter box, support plate, movable housing, servo motor, mounting bracket, movable plate, fixed bracket, threaded rod, top plate, feed hopper, filter plate, limiting rod, partition, and drain pipe. The etching solution flows into the movable housing through the feed hopper and connecting hose. The movable housing closes the top of the filter plate to form a seal, and the etching solution flows out through the drain pipe after being filtered by the filter plate. When the filter plate becomes clogged, the movable housing can stably move laterally to above another filter plate to continue filtration. The original filter plate is exposed for easy cleaning, providing ample visibility and facilitating thorough cleaning with tools. This ensures stable and reliable alternating use of the two filter plates, resulting in high practicality.
[0018] 2. This utility model utilizes the combined use of an electric telescopic rod and a stabilizing rod. When adjusting the position of the movable housing, the electric telescopic rod drives its vertical movement, while the stabilizing rod slides relative to the movable plate to ensure stable movement. The upward movement away from the filter plate prevents the carrying away of impurities; the vertical movement function ensures a tight fit with the filter plate, preventing leakage of the etching solution during filtration, effectively improving the filtration effect and the reliability of the equipment. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a rear-view, bottom-view, sectional view of the structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the movable box in this utility model;
[0022] Figure 4 This is a schematic diagram of the connection structure between the feed hopper and the connecting pipe in this utility model.
[0023] In the diagram: 1. Filter box; 2. Support leg; 3. Support plate; 4. Movable box body; 5. Air extraction pipe; 6. Servo motor; 7. Mounting bracket; 8. Movable plate; 9. Fixed bracket; 10. Threaded rod; 11. Connecting hose; 12. Top plate; 13. Feed hopper; 14. Filter plate; 15. Electric telescopic rod; 16. Stabilizing rod; 17. Limiting rod; 18. Partition plate; 19. Drain pipe; 20. Sealing gasket. Detailed Implementation
[0024] 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.
[0025] Please see Figures 1-4 One embodiment provided by this utility model:
[0026] An etching solution filtration and impurity removal device, comprising:
[0027] The filter box 1 has a partition 18 fixedly installed inside it, and filter plates 14 symmetrically distributed are fixedly installed on the top of the filter box 1. Support plates 3 symmetrically distributed are fixedly installed on the top of the filter box 1. A fixing frame 9 is fixedly installed on the top of the support plate 3, and a top plate 12 is fixedly installed on the fixing frame 9.
[0028] Mounting brackets 7 are fixedly installed on the inner surfaces of the two support plates 3. A threaded rod 10 is rotatably installed on one mounting bracket 7. A movable plate 8 is sleeved on the outer wall of the threaded rod 10. A movable box 4 is provided at the bottom of the movable plate 8. A feed hopper 13 is fixedly inserted into the top of the top plate 12. A connecting hose 11 is fixedly connected between the bottom end of the feed hopper 13 and the movable box 4.
[0029] Drainage pipes 19 are fixedly installed on both sides of the bottom of the filter box 1. A servo motor 6 is fixedly installed on one side of a mounting bracket 7, and the drive end of the servo motor 6 passes through the mounting bracket 7 and is fixedly connected to one end of the threaded rod 10.
[0030] An electric telescopic rod 15 is fixedly installed on the top of the movable plate 8, and the drive end of the electric telescopic rod 15 passes through the movable plate 8 and is fixedly connected to the top of the movable box 4.
[0031] In one embodiment, a limiting rod 17 is fixedly installed on another mounting bracket 7, and a sliding hole adapted to the limiting rod 17 is provided on the movable plate 8. The movable plate 8 is slidably connected to the limiting rod 17 through the sliding hole, which restricts the movement direction of the movable plate 8, enhances its lateral movement stability, and makes the movable plate 8 drive the movable box 4 to move more accurately.
[0032] In one preferred embodiment, symmetrically distributed stabilizing rods 16 are fixedly installed on the top of the movable box 4. The movable plate 8 is provided with sliding holes corresponding to the position and number of the stabilizing rods 16. The movable plate 8 is slidably connected to the stabilizing rods 16 through the sliding holes, ensuring the stability of the movable box 4 when it moves vertically, so that the movable box 4 can accurately fit or separate from the filter plate 14.
[0033] In one embodiment, a sealing gasket 20 is bonded to the bottom of the movable housing 4, and symmetrically distributed support legs 2 are fixedly installed on both sides of the bottom of the filter box 1. An exhaust pipe 5 is fixedly installed on the rear side of the top of the movable housing 4. The sealing gasket 20 enhances the sealing between the movable housing 4 and the filter plate 14 to prevent the etching solution from leaking. The support legs 2 make the filter box 1 more stable. The exhaust pipe 5 can be used to connect an external exhaust device to extract toxic gases during the etching solution filtration process.
[0034] In one preferred embodiment, the movable plate 8 has a threaded hole that matches the threaded rod 10, and the movable plate 8 is threadedly connected to the threaded rod 10 through the threaded hole, so that the movable plate 8 can achieve stable lateral movement through threaded transmission when the threaded rod 10 rotates, which facilitates the adjustment of the position of the movable box 4.
[0035] The working principle of this utility model is as follows: All electrical components mentioned are electrically connected to the main controller and power supply. The main controller can be a computer or other conventionally known control device. Existing publicly available power connection technologies are not elaborated here. Parts not mentioned in this device are the same as or can be implemented using existing technologies. During use, the etching solution is added through the feed hopper 13 and flows into the movable housing 4 under the guidance of the feed hopper 13 and connecting hose 11. At this time, the movable housing 4 is closed on top of a filter plate 14, forming a seal on the top space of the filter plate 14. After entering the movable housing 4, the etching solution is filtered by the filter plate 14. The filtered etching solution flows into the independent space separated by the partition 18 inside the filter box 1 and finally flows out through the drain pipe 19 at the corresponding position. When the filter plate 14 is clogged and needs cleaning, the addition of etching solution is stopped, and the servo motor 6 is controlled to work. Its drive end drives the threaded rod 10 to rotate. Through the threaded transmission between the threaded rod 10 and the movable plate 8, and the sliding relationship between the movable plate 8 and the limiting rod 17, the movable plate 8 moves stably laterally. The movement of the movable plate 8 is achieved by the electric telescopic rod 15, which moves the movable housing 4 above another filter plate 14 and closes it, allowing the etching solution to continue being filtered through this filter plate 14. The previously used filter plate 14 is now fully exposed to the external environment due to the removal of the movable housing 4, facilitating cleaning by staff. This provides ample visibility and allows for thorough cleaning of clogged filter plates 14 using tools, ensuring the stability and reliability of the alternating use of the two filter plates 14 and demonstrating high practicality.
[0036] When adjusting the position of the movable chamber 4, it is first driven upward by the drive end of the electric telescopic rod 15. During the vertical movement of the movable chamber 4, it causes relative sliding between the stabilizing rod 16 and the movable plate 8, thereby ensuring the stability of the movable chamber 4 during vertical movement. As the movable chamber 4 moves upward, it disengages from the filter plate 14, thus preventing the movable chamber 4 from carrying away the impurities filtered from the filter plate 14 during subsequent movements. At the same time, the vertical movement function of the movable chamber 4 ensures a tight fit between it and the filter plate 14, thereby preventing leakage during the etching solution filtration process.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An etching liquid filtering and impurity removing device, characterized by comprising: It includes: A filter box (1) is fixedly installed inside the filter box (1), a filter plate (18) is fixedly installed on the top of the filter box (1), a symmetrically distributed filter plate (14) is fixedly installed on the top of the filter box (1), a symmetrically distributed support plate (3) is fixedly installed on the top of the support plate (3), a fixing frame (9) is fixedly installed on the top of the fixing frame (9), and a top plate (12) is fixedly installed on the fixing frame (9). Mounting brackets (7) are fixedly installed on the inner surfaces of both support plates (3). A threaded rod (10) is rotatably installed on one of the mounting brackets (7). A movable plate (8) is sleeved on the outer wall of the threaded rod (10). A movable box (4) is provided at the bottom of the movable plate (8). A feed hopper (13) is fixedly inserted into the top of the top plate (12). A connecting hose (11) is fixedly connected between the bottom end of the feed hopper (13) and the movable box (4). Both sides of the bottom of the filter box (1) are fixedly installed with drain pipes (19), and a servo motor (6) is fixedly installed on one side of one of the mounting brackets (7). The drive end of the servo motor (6) passes through the mounting bracket (7) and is fixedly connected to one end of the threaded rod (10).
2. The etching liquid impurity removal device according to claim 1, characterized by: An electric telescopic rod (15) is fixedly installed on the top of the movable plate (8), and the driving end of the electric telescopic rod (15) passes through the movable plate (8) and is fixedly connected to the top of the movable box (4).
3. The etching liquid filtering and impurity removing device according to claim 1, characterized in that: A limiting rod (17) is fixedly installed on another mounting bracket (7). A sliding hole adapted to the limiting rod (17) is provided on the movable plate (8), and the movable plate (8) is slidably connected to the limiting rod (17) through the sliding hole.
4. The etching liquid filtering and impurity removing device according to claim 2, characterized in that: The top of the movable box (4) is fixedly equipped with symmetrically distributed stabilizing rods (16), and the movable plate (8) is provided with sliding holes corresponding to the position and number of stabilizing rods (16), and the movable plate (8) is slidably connected to the stabilizing rods (16) through the sliding holes.
5. The etching solution filtering and impurity removing device according to claim 1, characterized in that: The bottom of the movable box (4) is bonded with a sealing gasket (20), and the bottom sides of the filter box (1) are fixedly installed with symmetrically distributed support legs (2). The rear side of the top of the movable box (4) is fixedly installed with an air extraction pipe (5).
6. The etching liquid filtering and impurity removing device according to claim 1, characterized in that: The movable plate (8) has a threaded hole that matches the threaded rod (10), and the movable plate (8) is threadedly connected to the threaded rod (10) through the threaded hole.