PCB etching filtering device

Abstract

The utility model relates to the technical field of PCB etching filtration, disclose a kind of PCB etching filtration device, including bottom plate, the inside of the bottom plate is provided with locking mechanism, the top of the bottom plate is provided with cleaning mechanism, the cleaning mechanism includes cover plate, the top of the cover plate is fixedly connected with motor, the drive end of the motor is fixedly connected with rotating rod, the outside of the rotating rod is fixedly connected with connecting sleeve, the both sides of the connecting sleeve are fixedly connected with cylinder, the one side of the cylinder is slidably connected with telescopic link, the outside of the telescopic link is equipped with spring one, the one side of the cylinder is slidably connected with protective sleeve, the one side of the cylinder is fixedly connected with cleaning plate.In the utility model, the rotating rod is rotated by the motor of cleaning mechanism, the telescopic link is driven to move by connecting sleeve and cylinder, so that the cleaning rod is always close to the surface of filter screen under the elastic force of spring one, automatic cleaning function is realized, and the design effectively prevents filter screen from being blocked.

Description

Technical Field

[0001] This utility model relates to the field of PCB etching and filtration technology, and in particular to a PCB etching and filtration device. Background Technology

[0002] A PCB etching filtration system is a key piece of equipment specifically designed for the printed circuit board manufacturing process. Its main function is to remove impurities from the etching solution, ensuring etching effectiveness and enabling solution recycling. This system significantly extends the lifespan of the etching solution through a highly efficient circulating filtration system, while substantially reducing wastewater discharge, thus possessing significant environmental and economic value.

[0003] The PCB etching process generates a large amount of waste liquid, which contains metal particles and other impurities. Existing PCB etching filtration devices usually consist of a tank and a filter screen. The waste liquid enters the filter screen through the tank, while the metal particles and other impurities remain in the filter screen. The liquid flows out and is recycled.

[0004] In the PCB etching process, the filtration of the etching solution is a crucial step in ensuring etching effectiveness and extending the service life of the etching solution. In existing technologies, etching solution filtration devices typically employ a fixed filter screen structure. However, this filter screen is prone to clogging after prolonged use, leading to decreased filtration efficiency and impacting production efficiency. Therefore, this paper proposes a PCB etching filtration device to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a PCB etching filter device, which aims to improve the problem of inconvenient filter replacement in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A PCB etching filter device includes a base plate, a locking mechanism is provided inside the base plate, and a cleaning mechanism is provided on the top of the base plate;

[0008] The cleaning mechanism includes a cover plate, a motor is fixedly connected to the top of the cover plate, a rotating rod is fixedly connected to the drive end of the motor, a connecting sleeve is fixedly connected to the outside of the rotating rod, cylinders are fixedly connected to both sides of the connecting sleeve, a telescopic rod is slidably connected to one side of the cylinder, a spring is sleeved on the outside of the telescopic rod, a protective sleeve is slidably connected to one side of the cylinder, a cleaning plate is fixedly connected to one side of the cylinder, and a filter assembly is provided on the outside of the cleaning plate.

[0009] As a further description of the above technical solution:

[0010] The filtration assembly includes a tank, inside which a filter screen is provided, and the outer side of the cleaning plate is in contact with the inner wall of the filter screen.

[0011] As a further description of the above technical solution:

[0012] The locking mechanism includes a chassis, with columns slidably connected to both sides of the chassis. A spring is sleeved on the outside of each column, and a buckle is fixedly connected to one side of each column. A hollow column is provided inside the chassis, with a pull rod slidably connected to the bottom of the hollow column. A base is slidably connected to the outside of the pull rod, and a top cover is fixedly connected to the top of the pull rod. The buckle and the top cover are locked together by the base. A handle is fixedly connected to the bottom of the pull rod, and a locking ball is fixedly connected to one side of the cylinder.

[0013] As a further description of the above technical solution:

[0014] The top of the chassis is fixedly connected to the bottom of the filter screen, and the top of the base plate is fixedly connected to the bottom of the tank.

[0015] As a further description of the above technical solution:

[0016] The inner wall of the base plate is provided with a spherical groove, and the chassis and the base plate are movably connected through the spherical groove;

[0017] As a further description of the above technical solution:

[0018] The tank is fixedly connected to both sides with liquid inlet pipes, and the top of the tank is fixedly connected to the bottom of the cover plate.

[0019] As a further description of the above technical solution:

[0020] The top end of the spring is fixedly connected to the inner wall of the chassis, and the bottom end of the spring is fixedly connected to one side of the buckle;

[0021] As a further description of the above technical solution:

[0022] The outer wall of the upper cover is slidably connected to the inner wall of the hollow column, and the outer wall of the base is slidably connected to the inner wall of the hollow column.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the motor of the cleaning mechanism drives the rotating rod to rotate, which in turn drives the telescopic rod to move via the connecting sleeve and the cylinder. This ensures that the cleaning rod remains in close contact with the filter screen surface under the elastic force of the spring, achieving an automatic cleaning function. This design effectively prevents filter screen clogging, improves filtration efficiency, and reduces the frequency of manual cleaning intervention. The protective sleeve prevents the spring from directly contacting the etching solution, extending its service life.

[0025] 2. In this utility model, the locking mechanism uses the elastic force of spring two to push the column and the buckle to lock the filter assembly. Combined with the engaging structure of the top cover, base, locking ball, and hollow column, this ensures the filter assembly is securely and stably installed. The pull rod and handle design facilitates quick unlocking, allowing for the detachable replacement of the filter screen. The chassis and base plate are movably connected via a spherical groove, giving the locking mechanism a self-adjusting capability. This effectively prevents loosening caused by vibration or pressure fluctuations, significantly improving the stability of the equipment operation. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a PCB etching and filtering device proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the filter assembly of a PCB etching filter device proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the cleaning mechanism of a PCB etching filter device proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the locking mechanism of a PCB etching filter device proposed in this utility model.

[0030] Legend:

[0031] 1. Base plate; 2. Filter assembly; 21. Tank body; 22. Filter screen; 3. Cleaning mechanism; 31. Cover plate; 32. Motor; 33. Rotating rod; 34. Connecting sleeve; 35. Cylindrical column; 36. Telescopic column; 37. Spring 1; 38. Protective sleeve; 39. Cleaning plate; 4. Locking mechanism; 41. Chassis; 42. Column; 43. Spring 2; 44. Buckle; 45. Top cover; 46. Base; 47. Pull rod; 48. Handle; 49. Locking ball; 410. Hollow column; 5. Liquid inlet pipe. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a PCB etching and filtering device, including a base plate 1. The base plate 1 provides a stable installation foundation and working platform for the entire device. A locking mechanism 4 is provided inside the base plate 1 for quick fixing and disassembly, facilitating maintenance and replacement. A cleaning mechanism 3 is provided on the top of the base plate 1 for automatic cleaning. The cleaning mechanism 3 includes a cover plate 31 for sealing. A motor 32 is fixedly connected to the top of the cover plate 31, providing rotational power to the cleaning mechanism 3. A rotating rod 33 is fixedly connected to the drive end of the motor 32, transmitting rotational torque. A connecting sleeve 34 is fixedly connected to the outside of the rotating rod 33. The function of sleeve 34 is to connect the cleaning assembly 3 and realize power distribution. Cylindrical cylinders 35 are fixedly connected to both sides of sleeve 34, providing support points. A telescopic column 36 is slidably connected to one side of cylinder 35, adjusting the working position of sleeve 34. A spring 37 is sleeved on the outside of telescopic column 36, providing elastic support and maintaining cleaning pressure. A protective sleeve 38 is slidably connected to one side of cylinder 35, protecting internal components from corrosion. A cleaning plate 39 is fixedly connected to one side of cylinder 35, directly contacting and cleaning the surface of filter screen 22. A filter assembly 2 is installed on the outside of cleaning plate 39, working in conjunction with the cleaning mechanism 3. Filter assembly 2 includes a tank 21, containing etching solution and housing filter assembly 2. A filter screen 22 is installed inside the tank 21, separating solid impurities from the etching solution. The outside of cleaning plate 39 contacts the inner wall of filter screen 22 to ensure comprehensive cleaning.

[0034] Reference Figures 2 to 4 The locking mechanism 4 includes a chassis 41, which provides an installation base and ensures structural stability. Columns 42 are slidably connected to both sides of the chassis 41, guiding linear movement. Springs 43 are sleeved on the outside of the columns 42, providing reset force and maintaining locking pressure. A buckle 44 is fixedly connected to one side of the columns 42, cooperating with the upper cover 45 to achieve a quick locking function.

[0035] The chassis 41 has a hollow column 410 inside, which forms a guide channel and accommodates the locking components. A pull rod 47 is slidably connected to the bottom of the hollow column 410. The pull rod 47 transmits operating force and controls the locking state. A base 46 is slidably connected to the outside of the pull rod 47. The base 46 supports the locking mechanism 4 and realizes the linkage function. A top cover 45 is fixedly connected to the top of the pull rod 47. The top cover 45 cooperates with the buckle 44 to complete the locking action. The buckle 44 and the top cover 45 are locked together by the base 46 to form a reliable locking structure. A handle 48 is fixedly connected to the bottom of the pull rod 47. The handle 48 facilitates manual operation of the locking mechanism 4. A locking ball 49 is fixedly connected to one side of the column 42. The locking ball 49 improves the flexibility of the locking contact surface.

[0036] The top of the chassis 41 is fixedly connected to the bottom of the filter screen 22 to achieve a reliable connection with the filter assembly 2. The top of the base plate 1 is fixedly connected to the bottom of the tank 21 to ensure the overall structural stability. The inner wall of the base plate 1 is provided with a spherical groove, which provides a movable connection interface. The chassis 41 and the base plate 1 are movably connected through the spherical groove to achieve a flexible installation method. Liquid inlet pipes 5 are fixedly connected to both sides of the tank 21. The function of the liquid inlet pipes 5 is to transport the etching liquid to be filtered. The top of the tank 21 is fixedly connected to the bottom of the cover plate 31 to form a sealed filtration space. The top of spring 43 is fixedly connected to the inner wall of the chassis 41 to ensure accurate direction of elastic force. The bottom of spring 43 is fixedly connected to one side of buckle 44 to provide stable locking pressure. The outer wall of the top cover 45 is slidably connected to the inner wall of the hollow column 410 to ensure accurate movement trajectory. The outer wall of the base 46 is slidably connected to the inner wall of the hollow column 410 to achieve smooth linkage effect. The locking mechanism 4 adopts a modular design for easy disassembly and maintenance.

[0037] Working principle: The etching solution enters the tank 21 through the inlet pipe 5. When it flows through the filter screen 22, impurities are intercepted, and the clean etching solution continues to flow to the next process. After the motor 32 starts, it drives the rotating rod 33 to rotate, which drives the connecting sleeve 34 and the cylinder 35 to rotate synchronously. Under the action of the spring 37, the telescopic column 36 on the cylinder 35 keeps the cleaning plate 39 in close contact with the surface of the filter screen 22. With the rotation of the cleaning plate 39, clogging is prevented. The protective sleeve 38 protects the spring 37 and prevents corrosion by the etching solution. During the cleaning process, the telescopic rod can adapt to the surface condition of the filter screen to ensure a uniform and stable cleaning effect.

[0038] The locking mechanism 4, through the engagement of the column 42 within the chassis 41 and the second spring 43, ensures that the latch 44 constantly applies pressure to the filter assembly 2, guaranteeing its secure installation. When it is necessary to disassemble or replace the filter assembly 2, pulling the handle 48 moves the pull rod 47, disengaging the locking ball 49 from the engaging position of the hollow column 410 and releasing the locking state. After releasing the handle 48, the elastic force of the second spring 43 pushes the column 42 back to its original position, causing the latch 44 to re-lock.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A PCB etching filter device, comprising a base plate (1), characterized in that: The base plate (1) is provided with a locking mechanism (4) inside, and a cleaning mechanism (3) is provided on the top of the base plate (1). The cleaning mechanism (3) includes a cover plate (31), a motor (32) is fixedly connected to the top of the cover plate (31), a rotating rod (33) is fixedly connected to the drive end of the motor (32), a connecting sleeve (34) is fixedly connected to the outside of the rotating rod (33), a cylinder (35) is fixedly connected to both sides of the connecting sleeve (34), a telescopic rod (36) is slidably connected to one side of the cylinder (35), a spring (37) is sleeved on the outside of the telescopic rod (36), a protective sleeve (38) is slidably connected to one side of the cylinder (35), a cleaning plate (39) is fixedly connected to one side of the cylinder (35), and a filter assembly (2) is provided on the outside of the cleaning plate (39).

2. The PCB etching filter device according to claim 1, characterized in that: The filter assembly (2) includes a tank (21), inside which a filter screen (22) is provided, the outside of the cleaning plate (39) is in contact with the inner wall of the filter screen (22), and a chassis (41) is fixedly connected to the bottom of the tank (21).

3. The PCB etching filter device according to claim 1, characterized in that: The locking mechanism (4) includes a chassis (41), on both sides of the chassis (41) a column (42) is slidably connected, a spring (43) is sleeved on the outside of the column (42), a buckle (44) is fixedly connected to one side of the column (42), a hollow column (410) is provided inside the chassis (41), a pull rod (47) is slidably connected to the bottom of the hollow column (410), a base (46) is slidably connected to the outside of the pull rod (47), a top cover (45) is fixedly connected to the top of the pull rod (47), the buckle (44) and the top cover (45) are locked together by the base (46), a handle (48) is fixedly connected to the bottom of the pull rod (47), and a locking ball (49) is fixedly connected to one side of the column (42).

4. The PCB etching filter device according to claim 2, characterized in that: The top of the chassis (41) is fixedly connected to the bottom of the filter screen (22), and the top of the base plate (1) is fixedly connected to the bottom of the tank (21).

5. A PCB etching filter device according to claim 3, characterized in that: The inner wall of the base plate (1) is provided with a spherical groove, and the chassis (41) and the base plate (1) are movably connected through the spherical groove.

6. The PCB etching filter device according to claim 2, characterized in that: The tank (21) is fixedly connected to the two sides of the liquid inlet pipe (5), and the top of the tank (21) is fixedly connected to the bottom of the cover plate (31).

7. The PCB etching filter device according to claim 3, characterized in that: The top end of the second spring (43) is fixedly connected to the inner wall of the chassis (41), and the bottom end of the second spring (43) is fixedly connected to one side of the buckle (44).

8. A PCB etching filter device according to claim 3, characterized in that: The outer wall of the top cover (45) is slidably connected to the inner wall of the hollow column (410), and the outer wall of the base (46) is slidably connected to the inner wall of the hollow column (410).

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