Acid etching liquid treatment device with automatic adding mechanism
By introducing a level switch to control the solenoid valve and filter screen to filter precipitates in the acid etching solution treatment device, combined with the self-cleaning function of the rotating shaft, the problems of inconvenient addition and cleaning of etching solution in the existing device are solved, and the effects of automatic addition and self-cleaning are achieved.
Patent Information
- Application Number
- CN202423193212.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing acid etching solution treatment devices lack an automatic replenishment mechanism when the etching solution is almost used up. Manual replenishment is cumbersome and difficult to control precisely. Furthermore, sediment in the tank can easily enter the bath and affect the etching effect. In addition, the device is not easy to clean after use, and residual substances affect the next use.
An acid etching solution treatment device with an automatic addition mechanism was designed. The device uses a level switch to control a solenoid valve to automatically add etching solution, and a filter screen is installed at the addition point to filter out precipitates. After use, a self-cleaning device with a rotating shaft and a brush ensures accurate addition and cleaning of the etching solution.
It enables automatic and precise addition of etching solution, avoiding the impact of sediment on etching effect, and ensures the cleanliness of the device through self-cleaning function, preventing residual substances from affecting the next use.
Smart Images

Figure CN223535217U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of etching solution treatment technology, specifically to an acid etching solution treatment device with an automatic addition mechanism. Background Technology
[0002] Acidic etching solution is a chemical solution containing acidic components used to create patterns, markings, or surface treatments by etching metal surfaces.
[0003] When using acidic etching solution for copperplate engraving, the etching solution needs to be added from the storage tank to the etching bath for use. However, existing acidic etching solution treatment equipment has the following disadvantages:
[0004] (1) When the etching solution in the tank is about to run out, there is no automatic addition structure. Manual addition is troublesome and it is difficult to control the amount added. At the same time, the etching solution in the tank contains sediment, which is easily added into the tank, affecting the etching effect.
[0005] (2) After the existing etching solution treatment device is used, it is not convenient to clean the etching solution storage tank. The residual substances inside can easily affect the next use.
[0006] In view of the above, an acid etching solution treatment device with an automatic addition mechanism is proposed to solve the problems mentioned above. Utility Model Content
[0007] The purpose of this invention is to provide an acid etching solution treatment device with an automatic addition mechanism to solve the problems mentioned in the background art, such as the lack of an automatic addition structure for the etching solution in the tank when it is about to run out, the cumbersome manual addition operation, the difficulty in controlling the addition amount, the presence of sediment in the etching solution in the tank, the easy addition of sediment into the tank, which affects the etching effect, and the inconvenience of cleaning the etching solution storage tank after use, with residual substances inside easily affecting the next use.
[0008] To achieve the above objectives, this utility model provides the following technical solution: an acid etching solution treatment device with an automatic addition mechanism, comprising an etching tank, two pillars fixedly connected to both ends of one side of the top of the etching tank, a storage tank fixedly connected to the top of the four pillars, a tank lid threadedly connected to the top of the storage tank, a solenoid valve fixedly connected to one side of the bottom of the storage tank, a filter shell fixedly connected to the bottom of the solenoid valve, a filter screen engaged at the bottom of the inner wall of the filter shell, locking mechanisms installed at the bottom of both sides of the filter shell, a liquid level switch fixedly installed on one side of the inner wall of the etching tank, a reduction motor fixedly installed at the top of the tank lid, a rotating shaft fixedly connected to the output end of the reduction motor through the tank lid, a bottom brush fixedly installed at the bottom of the rotating shaft, and a side brush fixedly connected to the top of the rotating shaft.
[0009] When using an acid etching solution treatment device with an automatic addition mechanism according to this technical solution, the etching solution can be added automatically without manual operation and the addition amount is accurate. A filter screen is set at the addition point to filter out particulate precipitates in the liquid to avoid affecting the etching effect. The device can self-clean after use to avoid the need for future use.
[0010] In a preferred embodiment of this invention, the filter screen has limiting grooves on both sides. The locking mechanism includes a connecting seat, a threaded rod, a knob, a limiting block, and two sliding grooves. The connecting seat is fixedly embedded in the bottom of the side wall of the filter shell. A threaded rod is threadedly connected to the middle of one side of the inner wall of the connecting seat. A knob is fixedly connected to one end of the threaded rod, and the other end of the threaded rod is rotatably connected to the limiting block via a bearing. Sliding grooves are provided on both sides of the inner wall of the connecting seat, and the two sides of the limiting block are slidably connected to the inner walls of the two sliding grooves respectively. When the knob is rotated, it ultimately drives the limiting block to move horizontally.
[0011] In a preferred embodiment of this invention, the limiting block engages with the inner wall of the limiting groove. The limiting block locking into the limiting groove secures the position of the filter screen.
[0012] In a preferred embodiment of this invention, a spiral blade is fixedly connected to the bottom of the rotating shaft. The spiral blade, when rotating, agitates the water.
[0013] In a preferred embodiment of this invention, the solenoid valve is electrically connected to an external power supply via a level switch. The level switch automatically controls the opening and closing of the solenoid valve based on the liquid level in the tank.
[0014] In a preferred embodiment of this invention, a liquid injection nozzle is fixedly connected to one side of the top of the can lid. The injection nozzle is used to replenish etching solution or add cleaning solution.
[0015] In a preferred embodiment of this invention, a drain pipe is fixedly connected to the bottom of the storage tank on the side away from the solenoid valve, and a valve is installed on the surface of the drain pipe. When the valve is opened, cleaning water can be discharged from the drain pipe.
[0016] In a preferred embodiment of this invention, a casing is fixedly fitted onto the bottom of the storage tank, and an electric heating coil is fixedly connected to the inner wall of the casing. The electric heating coil maintains the temperature of the etching solution, ensuring its effectiveness.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. A liquid level switch is installed on the inner wall of the etching tank. When it detects that the liquid level of the etching solution in the tank is lower than the set minimum value, it will activate the solenoid valve to allow the etching solution in the storage tank to flow downward into the tank. When the liquid level is higher than the set maximum value, the solenoid valve will automatically close and the addition will stop. No manual operation is required and the addition amount is accurate. A filter screen is installed at the addition point of the etching solution to filter out particulate sediments in the liquid, so as to avoid affecting the etching effect. The filter screen is quick to install and remove and easy to clean the filtered material.
[0019] 2. After the device is used, the cleaning solution is injected into the storage tank through the injection nozzle, and the geared motor is started to drive the spiral blades on the surface of the rotating shaft to rotate, which agitates the water and cleans the storage tank. At the same time, the rotating shaft will drive the bottom brush and side brush to rotate, sweeping the particles attached to the inner wall of the tank, improving the cleaning effect. Thus, the etching solution treatment device can self-clean after use, avoiding affecting the next use. Attached Figure Description
[0020] Figure 1 This is a perspective view of the present utility model;
[0021] Figure 2 This is a cross-sectional view of the present invention;
[0022] Figure 3 This is a cross-sectional view of the storage tank of this utility model;
[0023] Figure 4 This is a top cross-sectional view of the filter housing of this utility model.
[0024] In the diagram: 1. Etching tank; 2. Support column; 3. Storage tank; 4. Tank lid; 5. Injection nozzle; 6. Solenoid valve; 7. Filter housing; 8. Liquid level switch; 9. Filter screen; 10. Locking mechanism; 101. Connecting seat; 102. Threaded rod; 103. Knob; 104. Limiting block; 105. Slide groove; 11. Limiting groove; 12. Housing; 13. Heating coil; 14. Gear motor; 15. Rotating shaft; 16. Spiral blade; 17. Bottom brush; 18. Side brush; 19. Drain pipe; 20. Valve. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-4This utility model provides an acid etching solution treatment device with an automatic addition mechanism, including an etching tank 1. Two pillars 2 are fixedly connected to both ends of one side of the top of the etching tank 1. A storage tank 3 is fixedly connected to the top of the four pillars 2. A tank cover 4 is threadedly connected to the top of the storage tank 3, which can be disassembled for easy cleaning. A solenoid valve 6 is fixedly connected to one side of the bottom of the storage tank 3. A filter shell 7 is fixedly connected to the bottom of the bottom of the solenoid valve 6. A filter screen 9 is engaged at the bottom of the inner wall of the filter shell 7 to filter the sediment in the etching solution. Locking mechanisms 10 are installed at the bottom of both sides of the filter shell 7. A liquid level switch 8 is fixedly installed on one side of the inner wall of the etching tank 1 to detect the liquid level in the etching tank 1. A geared motor 14 is fixedly installed at the top of the tank cover 4. A rotating shaft 15 is fixedly connected to the output end of the geared motor 14 through the tank cover 4. A bottom brush 17 is fixed to the bottom of the rotating shaft 15. A side brush 18 is fixedly connected to the top of the rotating shaft 15 for cleaning.
[0027] In use, a liquid level switch 8 is installed on the inner wall of the etching tank 1. When it detects that the liquid level of the etching solution in the tank is lower than the set minimum value, it will activate the solenoid valve 6 to allow the etching solution in the storage tank 3 to flow downward into the tank. When the liquid level is higher than the set maximum value, the solenoid valve 6 will automatically close and the addition will stop. No manual operation is required and the addition amount is accurate. A filter screen 9 is installed at the addition point of the etching solution to filter out particulate sediments in the liquid and avoid affecting the etching effect.
[0028] The filter screen 9 has limit grooves 11 on both sides. The locking mechanism 10 includes a connecting seat 101, a threaded rod 102, a knob 103, a limit block 104, and two sliding grooves 105. The connecting seat 101 is fixedly embedded in the bottom of the side wall of the filter shell 7. The threaded rod 102 is threadedly connected to the middle of one side of the inner wall of the connecting seat 101. One end of the threaded rod 102 is fixedly connected to the knob 103 for adjusting the position of the limit block 104. The other end of the threaded rod 102 is rotatably connected to the limit block 104 through a bearing. Sliding grooves 105 are provided on both sides of the inner wall of the connecting seat 101. The two sides of the limit block 104 are slidably connected to the inner walls of the two sliding grooves 105 respectively. The limit block 104 engages with the inner wall of the limit groove 11 to achieve a locking function.
[0029] In use, by rotating the knob 103 at the locking mechanism 10, the threaded rod 102 is rotated. Under the guidance of the slide groove 105, the limiting block 104 can be moved horizontally, so that it can be disengaged from or inserted into the limiting groove 11 of the filter screen 9, thus allowing the filter screen 9 to be disassembled or installed, making it convenient to clean the filtered material.
[0030] A spiral blade 16 is fixedly connected to the bottom of the rotating shaft 15 to agitate the water. A liquid injection nozzle 5 is fixedly connected to one side of the top of the tank cover 4 for injecting etching solution or cleaning water. A drain pipe 19 is fixedly connected to the bottom of the storage tank 3 away from the solenoid valve 6. A valve 20 is installed on the surface of the drain pipe 19 for draining water. A housing 12 is fixedly fitted to the bottom of the storage tank 3. An electric heating coil 13 is fixedly connected to the inner wall of the housing 12 for heating. The solenoid valve 6 is electrically connected to an external power supply through a liquid level switch 8 to control its opening and closing.
[0031] During use, the liquid level switch 8 can automatically control the operation of the solenoid valve 6 for adding etching solution. By activating the heating coil 13 inside the housing 12, the etching solution can be heated to maintain its temperature and ensure the etching effect. After the etching solution treatment device is used, cleaning solution is injected into the storage tank 3 through the injection nozzle 5, and the geared motor 14 is activated to drive the spiral blades 16 on the surface of the rotating shaft 15 to rotate, which agitates the water and cleans the storage tank 3. At the same time, the rotating shaft 15 will drive the bottom brush 17 and the side brush 18 to rotate, sweeping the particles attached to the inner wall of the tank to improve the cleaning effect. The cleaning water and dirt can be discharged from the drain pipe 19 by opening the valve 20.
[0032] In practical use, this utility model's acid etching solution treatment device with an automatic addition mechanism utilizes a liquid level switch 8 (model BZ2401) installed on the inner wall of the etching tank 1. When the switch detects that the etching solution level in the tank is lower than the set minimum value, it activates the solenoid valve 6, allowing the etching solution in the storage tank 3 to flow downwards into the tank. When the liquid level is higher than the set maximum value, the solenoid valve 6 automatically closes, stopping the addition. No manual operation is required, and the addition amount is precise. A filter screen 9 is installed at the etching solution addition point to filter out particulate sediments in the liquid, preventing them from affecting the etching effect. By rotating the knob 103 at the locking mechanism 10, the threaded rod 102 rotates, guided by the slide groove 105. The device can move the limiting block 104 horizontally, allowing it to disengage from or engage with the limiting groove 11 of the filter screen 9, thus enabling the filter screen 9 to be disassembled or installed. This facilitates the cleaning of the filtered material. After use, the etching solution treatment device injects cleaning solution into the storage tank 3 through the injection nozzle 5 and starts the reduction motor 14 to drive the spiral blades 16 on the surface of the rotating shaft 15 to rotate, which agitates the water and cleans the storage tank 3. At the same time, the rotating shaft 15 drives the bottom brush 17 and the side brush 18 to rotate, sweeping the particles attached to the inner wall of the tank to improve the cleaning effect. The cleaning water and dirt can be discharged from the drain pipe 19 by opening the valve 20. Thus, the etching solution treatment device can self-clean after use, avoiding affecting the next use.
[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An acid etching solution treatment apparatus with an automatic addition mechanism, comprising an etching tank (1), characterized in that: Two pillars (2) are fixedly connected to both ends of the top side of the etching tank (1). A storage tank (3) is fixedly connected to the top of the four pillars (2). A tank cover (4) is threadedly connected to the top of the storage tank (3). A solenoid valve (6) is fixedly connected to one side of the bottom of the storage tank (3). A filter shell (7) is fixedly connected to the bottom of the solenoid valve (6). A filter screen (9) is engaged at the bottom of the inner wall of the filter shell (7). Locking mechanisms (10) are installed at the bottom of both sides of the filter shell (7). A liquid level switch (8) is fixedly installed on one side of the inner wall of the etching tank (1). A geared motor (14) is fixedly installed at the top of the tank cover (4). A rotating shaft (15) is fixedly connected to the output end of the geared motor (14) through the tank cover (4). A bottom brush (17) is fixed at the bottom of the rotating shaft (15). A side brush (18) is fixedly connected to the top of the rotating shaft (15).
2. The acid etching solution treatment device with an automatic addition mechanism according to claim 1, characterized in that: The filter screen (9) has limit grooves (11) on both sides. The locking mechanism (10) includes a connecting seat (101), a threaded rod (102), a knob (103), a limit block (104), and two sliding grooves (105). The connecting seat (101) is fixedly embedded in the bottom of the side wall of the filter shell (7). The middle of one side of the inner wall of the connecting seat (101) is threaded with a threaded rod (102). One end of the threaded rod (102) is fixedly connected with a knob (103). The other end of the threaded rod (102) is rotatably connected to the limit block (104) through a bearing. Sliding grooves (105) are provided on both sides of the inner wall of the connecting seat (101), and the two sides of the limit block (104) are slidably connected to the inner walls of the two sliding grooves (105).
3. The acid etching solution treatment device with an automatic addition mechanism according to claim 2, characterized in that: The limiting block (104) engages with the inner wall of the limiting groove (11).
4. The acid etching solution treatment device with an automatic addition mechanism according to claim 1, characterized in that: The bottom of the rotating shaft (15) is fixedly connected to a helical blade (16).
5. An acid etching solution treatment device with an automatic addition mechanism according to claim 1, characterized in that: The solenoid valve (6) is electrically connected to an external power supply via a level switch (8).
6. An acid etching solution treatment apparatus with an automatic addition mechanism according to claim 1, characterized in that: A liquid injection nozzle (5) is fixedly connected to one side of the top of the can lid (4).
7. An acid etching solution treatment apparatus with an automatic addition mechanism according to claim 1, characterized in that: The storage tank (3) has a drain pipe (19) fixedly connected to the side of its bottom away from the solenoid valve (6), and a valve (20) is installed on the surface of the drain pipe (19).
8. An acid etching solution treatment apparatus with an automatic addition mechanism according to claim 1, characterized in that: The bottom of the storage tank (3) is fixedly fitted with a shell (12), and an electric heating coil (13) is fixedly connected to the inner wall of the shell (12).