A circuit board surface contaminant removal device

Abstract

The utility model discloses a circuit board surface pollutant removal device relates to circuit board cleaning technical field, including support frame, the top of support frame is equipped with support board, the top of support board is equipped with the plug -in hole, support board and support frame are connected through hydraulic mechanism, the bottom rotation of support board is connected with the rotating lever, the top fixed connection of support board has the motor, the output shaft end of motor penetrates support board and is connected with the rotating lever fixedly, the inside of support frame is equipped with the cleaning frame, the inside bottom of support frame is equipped with with the ultrasonic mechanism that cleaning frame is connected, the inside of cleaning frame is equipped with the screen frame, the top solid of screen frame is connected with integral moulding plug -in block. The utility model improves and washes the efficiency and the decontamination ability, reduces the manual intervention, promotes production efficiency and product quality consistency, shortens drying time, reduces secondary pollution risk.

Description

Technical Field

[0001] This utility model relates to the field of circuit board cleaning technology, and in particular to a device for removing contaminants from the surface of circuit boards. Background Technology

[0002] During the production and assembly of printed circuit boards (PCBs), various contaminants, such as metal shavings, oil stains, rosin, flux residue, and airborne dust particles, easily adhere to the PCB surface due to multiple processes including drilling, cutting, soldering, and surface mounting. These contaminants not only affect the appearance of the PCB but, more seriously, can cause electrical faults such as short circuits, poor contacts, and decreased insulation performance, thereby reducing the reliability and lifespan of electronic products.

[0003] Traditional circuit board cleaning methods often involve manual wiping or static immersion, which suffer from low cleaning efficiency, limited decontamination capabilities, and non-standard operating procedures. Furthermore, cleaning solution often remains on the circuit board surface after cleaning. If the board is removed directly without treatment, it not only affects subsequent processes but also easily causes secondary contamination due to contact with pollutants, thereby reducing cleaning effectiveness and product yield. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for removing contaminants from the surface of circuit boards.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for removing surface contaminants from a circuit board includes a support frame, a support plate at the top of the support frame, a insertion hole at the top of the support plate, a hydraulic connection between the support plate and the support frame, a rotating rod rotatably connected to the bottom of the support plate, a motor fixedly connected to the top of the support plate, the output shaft of the motor passing through the support plate and fixedly connected to the rotating rod, a cleaning frame inside the support frame, an ultrasonic mechanism connected to the cleaning frame at the bottom of the inner part of the support frame, a strainer frame inside the cleaning frame, an integrally formed insertion block fixedly connected to the top of the strainer frame, an insertion hole on one side of the top of the insertion block, a connecting block fixedly connected to the bottom of the rotating rod, a connecting groove on one side of the connecting block, the insertion block being inserted into the connecting groove, and a fixing mechanism on the top of the connecting block for fixing the insertion block in the connecting groove.

[0007] As a further improvement of this utility model, the hydraulic mechanism includes a hydraulic station fixedly connected to one side of the support frame, and hydraulic cylinders fixedly connected to both sides of the support frame. The two hydraulic cylinders are connected to the hydraulic station through two oil supply pipes, and the telescopic ends of the two hydraulic cylinders are fixedly connected to the bottom of the support plate.

[0008] As a further improvement of this utility model, the ultrasonic mechanism includes an ultrasonic machine fixedly connected to the bottom of the support frame, and the top of the ultrasonic machine is connected to the bottom of the cleaning frame through four vibrators.

[0009] As a further improvement of this utility model, the fixing mechanism includes a fixing frame fixedly connected to the top of the support plate, a movable plate slidably disposed inside the fixing frame, a plug-in post fixedly inserted into the movable plate, the top of the plug-in post penetrating the fixing frame and fixedly connected to a pull plate, the bottom of the plug-in post penetrating a connecting block and inserted into a plug-in hole, and a spring sleeved with the plug-in post fixedly connected to the bottom of the movable plate, the other end of the spring being fixedly connected to the top of the connecting block.

[0010] As a further improvement of this utility model, the lower end of the cleaning frame is fixedly connected to a water pipe communicating with its interior, and the other end of the water pipe passes through the support frame and extends outward.

[0011] As a further improvement of this utility model, the top of the mesh frame is provided with multiple insertion slots on both sides of the insertion block.

[0012] The beneficial effects of this utility model are:

[0013] By using a hydraulic mechanism to drive the support plate up and down, combined with the high-frequency vibrations generated by the ultrasonic cleaner, the cleaning fluid's ability to remove contaminants from the surface and crevices of the circuit board is effectively enhanced. The ultrasonic vibrations are evenly transmitted to the cleaning fluid within the cleaning frame via four transducers, creating a microbubble bursting effect that efficiently removes fine contaminants. Furthermore, the strainer frame design allows for free flow of the cleaning fluid, ensuring thorough cleaning of every detail. This combination not only improves cleaning efficiency but also significantly enhances decontamination capabilities, making the entire cleaning process more thorough and standardized, reducing the need for manual intervention, and greatly improving production efficiency and product quality consistency.

[0014] The motor-driven rotating rod rotates, causing the mesh frame and its internal circuit board to spin at high speed. Centrifugal force is used to quickly remove residual cleaning fluid, significantly shortening drying time and improving work efficiency. Furthermore, a water pipe is installed below the cleaning frame for timely drainage and replacement of the cleaning fluid, maintaining a clean cleaning environment and further reducing the risk of secondary contamination.

[0015] This invention improves cleaning efficiency and decontamination ability, reduces manual intervention, enhances production efficiency and product quality consistency, shortens drying time, and reduces the risk of secondary pollution. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of a circuit board surface contaminant removal device proposed in this utility model;

[0017] Figure 2 This is a partial cross-sectional structural diagram of a circuit board surface contaminant removal device proposed in this utility model, viewed from the front.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the mesh frame, plug block, plug groove, and plug hole connection of the circuit board surface contaminant removal device proposed in this utility model.

[0020] In the diagram: 1 Support frame, 2 Hydraulic station, 3 Oil pipe, 4 Hydraulic cylinder, 5 Cleaning frame, 6 Support plate, 7 Motor, 8 Rotating rod, 9 Connecting block, 10 Strainer frame, 11 Vibrator, 12 Ultrasonic machine, 13 Water pipe, 14 Connecting groove, 15 Fixed frame, 16 Insertion post, 17 Pulling plate, 18 Moving plate, 19 Spring, 20 Insertion hole, 21 Insertion block, 22 Insertion groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Figures 1-4 A device for removing contaminants from the surface of a circuit board includes a support frame 1, a support plate 6 on the top of the support frame 1, the support frame 1 providing structural support, and a insertion hole 20 on the top of the support plate 6 for positioning and limiting. The support plate 6 and the support frame 1 are connected by a hydraulic mechanism to realize the lifting and lowering adjustment of the support plate 6. The hydraulic mechanism includes a hydraulic station 2 fixedly connected to one side of the support frame 1 to provide hydraulic power. Two hydraulic cylinders 4 are fixedly connected to both sides of the support frame 1. The two hydraulic cylinders 4 are connected to the hydraulic station 2 through two oil supply pipes 3 to realize the synchronous delivery and control of hydraulic oil. The telescopic ends of the two hydraulic cylinders 4 are fixedly connected to the bottom of the support plate 6 to drive the support plate 6 to move in the vertical direction.

[0023] A rotating rod 8 is rotatably connected to the bottom of the support plate 6, and a motor 7 is fixedly connected to the top of the support plate 6 to provide rotational driving force. The output shaft of the motor 7 passes through the support plate 6 and is fixedly connected to the rotating rod 8. A cleaning frame 5 is provided inside the support frame 1 to hold the cleaning fluid and circuit board. A water pipe 13 communicating with the interior of the cleaning frame 5 is fixedly connected to the lower end of the cleaning frame 5. The other end of the water pipe 13 passes through the support frame 1 and extends outward. The water pipe 13 has a valve for discharging and replacing the cleaning fluid. An ultrasonic mechanism connected to the cleaning frame 5 is provided at the bottom inner part of the support frame 1 to enhance the cleaning effect through high-frequency vibration. The ultrasonic mechanism includes an ultrasonic machine 12 fixedly connected to the bottom inner part of the support frame 1 to generate ultrasonic vibration. The top of the ultrasonic machine 12 is connected to the bottom of the cleaning frame 5 through four vibrators 11 to ensure that the vibration is evenly transmitted to the cleaning frame 5.

[0024] The cleaning frame 5 contains a strainer frame 10 to support the circuit board and allow the cleaning fluid to flow. Multiple insertion slots 22 are sequentially formed on both sides of the top of the strainer frame 10, located on the insertion block 21, for placing the circuit board. An integrally formed insertion block 21 is fixedly connected to the top of the strainer frame 10. The insertion block 21 has a T-shaped structure, with an insertion hole 20 on one side of its top. A connecting block 9 is fixedly connected to the bottom of the rotating rod 8. A connecting groove 14, matching the size of the insertion block 21, is formed on one side of the connecting block 9. The insertion block 21 is inserted into the connecting groove 14, allowing for the detachable installation of the strainer frame 10. The top of the connecting block 9 is provided with a mechanism to fix the insertion block 21 to the connecting groove 14. The fixing mechanism includes a fixing frame 15 fixedly connected to the top of the support plate 6. A movable plate 18 is slidably provided inside the fixing frame 15. A plug-in post 16 is fixedly inserted into the movable plate 18. The top of the plug-in post 16 passes through the fixing frame 15 and is fixedly connected to a pull plate 17 for easy manual operation. The bottom of the plug-in post 16 passes through the connecting block 9 and is inserted into the plug-in hole 20 to fix the plug-in block 21. A spring 19 is fixedly connected to the bottom of the movable plate 18 and is sleeved with the plug-in post 16 to provide a reset elastic force so that the plug-in post 16 is always inserted into the plug-in hole 20 without the action of external force. The other end of the spring 19 is fixedly connected to the top of the connecting block 9.

[0025] In use, the circuit board to be cleaned is first placed in the insertion slot 22 of the mesh frame 10. The insertion post 16 is disengaged from the insertion hole 20 by pulling the pull plate 17. The insertion block 21 of the mesh frame 10 is then aligned with the connecting slot 14 of the connecting block 9 and inserted. The pull plate 17 is released, and the insertion post 16 automatically inserts into the insertion hole 20 under the elastic force of the spring 19, completing the fixation. After injecting an appropriate amount of cleaning fluid into the cleaning frame 5, the hydraulic station 2 is activated, causing the hydraulic cylinder 4 to lower the support plate 6 until the mesh frame 10 is completely immersed in the cleaning fluid. Then, the ultrasonic machine 12 is activated, transmitting ultrasonic vibrations to the cleaning frame 5 through the vibrator 11, achieving efficient cleaning of the circuit board. After cleaning, the hydraulic station 2 is activated again, causing the hydraulic cylinder 4 to raise the support plate 6 until the mesh frame 10 is completely detached from the cleaning fluid. Then, the motor 7 is activated, driving the rotating rod 8 to rotate the mesh frame 10, which uses centrifugal force to remove the residual cleaning fluid from the mesh frame 10 and the circuit board. The cleaned circuit board can then be removed by raising and lowering the support plate 6 again.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for removing contaminants from the surface of a circuit board, comprising a support frame (1), characterized in that, The support frame (1) has a support plate (6) on its top, and a plug hole (20) is provided on the top of the support plate (6). The support plate (6) and the support frame (1) are connected by a hydraulic mechanism. A rotating rod (8) is rotatably connected to the bottom of the support plate (6). A motor (7) is fixedly connected to the top of the support plate (6). The output shaft of the motor (7) passes through the support plate (6) and is fixedly connected to the rotating rod (8). A cleaning frame (5) is provided inside the support frame (1). The bottom of the support frame (1) is provided with a connection to the cleaning frame (5). The ultrasonic mechanism is connected to the cleaning frame (5), which is provided with a mesh frame (10). The top of the mesh frame (10) is fixedly connected to an integrally formed plug block (21). The top side of the plug block (21) is provided with a plug hole (20). The bottom of the rotating rod (8) is fixedly connected to a connecting block (9). The side of the connecting block (9) is provided with a connecting groove (14). The plug block (21) is inserted into the connecting groove (14). The top of the connecting block (9) is provided with a fixing mechanism to fix the plug block (21) in the connecting groove (14).

2. The circuit board surface contaminant removal device according to claim 1, characterized in that, The hydraulic mechanism includes a hydraulic station (2) fixedly connected to one side of the support frame (1). Hydraulic cylinders (4) are fixedly connected to both sides of the support frame (1). The two hydraulic cylinders (4) are connected to the hydraulic station (2) through two oil supply pipes (3). The telescopic ends of the two hydraulic cylinders (4) are fixedly connected to the bottom of the support plate (6).

3. The circuit board surface contaminant removal device according to claim 1, characterized in that, The ultrasonic mechanism includes an ultrasonic transducer (12) fixedly connected to the bottom of the support frame (1), and the top of the ultrasonic transducer (12) is connected to the bottom of the cleaning frame (5) through four transducers (11).

4. The circuit board surface contaminant removal device according to claim 1, characterized in that, The fixing mechanism includes a fixing frame (15) fixedly connected to the top of the support plate (6). A movable plate (18) is slidably provided inside the fixing frame (15). A plug-in post (16) is fixedly inserted into the movable plate (18). The top of the plug-in post (16) passes through the fixing frame (15) and is fixedly connected to a pull plate (17). The bottom of the plug-in post (16) passes through the connecting block (9) and is inserted into the plug-in hole (20). A spring (19) that is sleeved with the plug-in post (16) is fixedly connected to the bottom of the movable plate (18). The other end of the spring (19) is fixedly connected to the top of the connecting block (9).

5. The circuit board surface contaminant removal device according to claim 1, characterized in that, The lower end of the cleaning frame (5) is fixedly connected to a water pipe (13) that communicates with its interior, and the other end of the water pipe (13) passes through the support frame (1) and extends outward.

6. The circuit board surface contaminant removal device according to claim 1, characterized in that, The top of the mesh frame (10) is provided with multiple insertion slots (22) on both sides of the insertion block (21).

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