Ultrasonic cleaning device for circuit board processing

Abstract

The utility model relates to the technical field of cleaning devices, in particular to an ultrasonic cleaning device for circuit board processing, which comprises a base, a cleaning tank is mounted at the bottom of the base, a top opening of the cleaning tank is communicated with the upper side of the base, a control cabinet is mounted on one side of the bottom of the base, and a controller is mounted in the control cabinet. An ultrasonic generator is further installed in the control cabinet and connected with the controller through a wire, and a transducer is installed at the bottom of the cleaning tank. According to the circuit board cleaning device, the rotating disc can be driven to rotate through the driving motor, then the connecting net plates connected to the connecting rods can be moved into the cleaning tank to clean the circuit boards on the connecting net plates, and in the cleaning process, the circuit boards which are not cleaned can be installed on the connecting net plate connected with the other connecting rod; and the cleaned circuit board can be cleaned without taking down the cleaned circuit board, so that the cleaning effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, and in particular to an ultrasonic cleaning device for circuit board processing. Background Technology

[0002] A circuit board, or PCB, is a carrier of electronic components. It makes circuits miniaturized and more intuitive, facilitates the mass production of fixed circuits and optimizes the layout of electrical appliances, and is widely used in various electronic devices such as computers, communication equipment, and consumer electronics.

[0003] Existing ultrasonic cleaning methods for circuit board manufacturing involve removing surface contaminants using ultrasonic cleaning equipment. During cleaning, the circuit boards are fixed on racks and then placed in a cleaning tank. However, this process is cumbersome. After cleaning, the racks must be removed from the tank, the cleaned circuit boards removed, and then the uncleaned circuit boards placed back on the racks. The racks are then returned to the cleaning tank for further cleaning. Furthermore, the cleaned circuit boards remain damp, and the lack of drying equipment in the cleaning system results in dust and other impurities easily adhering to the surface, leading to poor cleaning performance. Therefore, we propose an ultrasonic cleaning device for circuit board processing. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing an ultrasonic cleaning device for circuit board processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an ultrasonic cleaning device for circuit board processing is designed, including a base, a cleaning tank installed at the bottom of the base, the top opening of the cleaning tank being connected to the top of the base, a control cabinet installed on one side of the bottom of the base, a controller installed inside the control cabinet, and an ultrasonic generator installed inside the control cabinet. The ultrasonic generator is connected to the controller via a wire, and a transducer is installed at the bottom of the cleaning tank, which is connected to the ultrasonic generator via a wire.

[0006] The top of the base is also equipped with a mounting cover. Both ends of the inside of the mounting cover are rotatably connected to turntables. One side of one of the turntables is connected to the output shaft of the drive motor, and the drive motor is fixed on the side wall of the mounting cover. The drive motor is connected to the controller through wires. The edges of the two turntables are connected by several connecting rods.

[0007] Each link is rotatably connected to a connecting ring at both ends. Each connecting ring has a first hook at its bottom and a second hook hanging on each first hook. The bottoms of two adjacent second hooks are connected by a connecting mesh plate. Each connecting mesh plate has several limiting blocks at its top. Adjacent limiting blocks form a receiving groove, and each receiving groove contains a circuit board.

[0008] A heating cover is installed on one side of the mounting cover. A heating resistance wire is installed on the inside side of the heating cover. The heating resistance wire is connected to the controller through a wire. A heat exchange tube is installed on the inside side of the heating cover. One end of the heat exchange tube is connected to the outlet of the air pump through a gas supply pipe. The air pump is fixed to the bottom of the base and is connected to the controller through a wire.

[0009] An exhaust pipe is installed on one side inside the mounting cover. One end of the exhaust pipe is connected to the other end of the heat exchange tube, and several exhaust holes are opened on one side of the exhaust pipe.

[0010] Preferably, when the connecting rod moves to the bottom of the turntable, the connecting mesh plate and the limiting block are both located in the cleaning tank, and the cleaning fluid inside the cleaning tank overflows the circuit board.

[0011] Preferably, both the heat exchange tube and the exhaust tube are arranged in an "S" shape or a serpentine shape.

[0012] Preferably, elastic pads are provided on the adjacent surfaces of two adjacent limiting blocks.

[0013] Preferably, the base has several legs installed on its bottom edge, with the bottom of the legs extending to the bottom of the cleaning tank and the control cabinet.

[0014] Preferably, the air outlet pipe is located on one side of the turntable, and the air outlet faces the connecting mesh plate.

[0015] Preferably, when the turntable rotates, there is a gap between the edge of the connecting mesh plate and the edge of the air outlet pipe and the cleaning tank.

[0016] Preferably, a drain pipe is installed at the bottom of the cleaning tank, and a valve is installed on the drain pipe.

[0017] The design scheme proposed in this utility model has the following beneficial effects in application:

[0018] 1. The drive motor can rotate the turntable, which can move the connecting mesh plate connected to the connecting rod into the cleaning tank to clean the circuit board on the connecting mesh plate. During the cleaning process, the uncleaned circuit board can also be installed on the connecting mesh plate connected to another connecting rod, without having to remove the circuit board after cleaning before placing the circuit board to be cleaned, thus improving the cleaning effect.

[0019] 2. An air pump can deliver outside air into the heat exchange tube. After being heated by the heating resistance wire, the air is sprayed onto the cleaned circuit board through the air outlet on the air outlet pipe, which speeds up the drying of the circuit board and improves its performance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the gas pump and gas outlet pipe structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the first hook and connecting mesh plate structure of this utility model;

[0023] Figure 4 This is a side sectional view of the structure of this utility model.

[0024] In the diagram: 1. Base; 2. Connecting rod; 3. Drive motor; 4. Mounting cover; 5. Turntable; 6. Air outlet pipe; 7. Air outlet hole; 8. Heating cover; 9. Heat exchange tube; 10. Heating resistance wire; 11. Ultrasonic generator; 12. Controller; 13. Control cabinet; 14. Cleaning tank; 15. First hook; 16. Connecting ring; 17. Limit block; 18. Air pump; 19. Air supply pipe; 20. Second hook; 21. Connecting mesh plate; 22. Support leg; 23. Transducer; 24. Drain pipe. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figure 1 Figure 1 shows an ultrasonic cleaning device for circuit board processing, including a base 1, a cleaning tank 14 installed at the bottom of the base 1, the top opening of the cleaning tank 14 being connected to the top of the base 1, a control cabinet 13 installed on one side of the bottom of the base 1, a controller 12 installed inside the control cabinet 13, and an ultrasonic generator 11 installed inside the control cabinet 13. The ultrasonic generator 11 is connected to the controller 12 via wires, and a transducer 23 is installed at the bottom of the cleaning tank 14, connected to the ultrasonic generator 11 via wires. The controller 12 is one of a control motherboard, a host computer, or a PLC logic controller. In actual use, the controller 12 can control the ultrasonic generator 11 to work, and convert the high-frequency electrical signal emitted by the ultrasonic generator 11 into high-frequency mechanical oscillation through the transducer 23, causing the cleaning fluid in the cleaning tank 14 to generate a cavitation effect, thereby cleaning the surface of the circuit board.

[0027] like Figure 1 As shown, a mounting cover 4 is also installed on the top of the base 1. Both ends of the mounting cover 4 are rotatably connected to turntables 5. One side of one of the turntables 5 is connected to the output shaft of the drive motor 3, and the drive motor 3 is fixed on the side wall of the mounting cover 4. The drive motor 3 is connected to the controller 12 through wires. The edges of the two turntables 5 are connected by several connecting rods 2. In actual operation, the drive motor 3 can drive the turntable 5 to rotate, which in turn makes the connecting rods 2 rotate with the turntable 5.

[0028] like Figure 1 and Figure 3 As shown, each connecting rod 2 has a connecting ring 16 rotatably connected to both ends. Each connecting ring 16 has a first hook 15 installed at its bottom, and a second hook 20 is suspended from each first hook 15. The bottoms of two adjacent second hooks 20 are connected by a connecting mesh plate 21, and several limiting blocks 17 are installed on the top of each connecting mesh plate 21. A receiving groove is formed between two adjacent limiting blocks 17, and a circuit board is provided in each receiving groove. In actual use, when the connecting rod 2 moves to the bottom of the turntable 5, the connecting mesh plate 21 and the limiting blocks 17 are located in the cleaning tank 14, and the cleaning liquid inside the cleaning tank 14 overflows the circuit board. In this way, the circuit board can be cleaned by the cleaning liquid. At the same time, the connecting mesh plates 21 on other connecting rods 2 are located above the cleaning tank 14. The operator can place the uncleaned circuit board on the corresponding connecting mesh plate 21 for subsequent cleaning. In this way, while cleaning the circuit board on one connecting mesh plate 21, the uncleaned circuit board can be installed on another connecting mesh plate 21, improving the usage effect.

[0029] like Figure 1 and Figure 2As shown, a heating cover 8 is installed on one side of the mounting cover 4. A heating resistance wire 10 is installed inside the heating cover 8. The heating resistance wire 10 is connected to the controller 12 via a wire. A heat exchange tube 9 is installed inside the heating cover 8. One end of the heat exchange tube 9 is connected to the outlet end of the air pump 18 via an air supply pipe 19. The air pump 18 is fixed to the bottom of the base 1 and is connected to the controller 12 via a wire. An air outlet pipe 6 is installed inside the mounting cover 4. One end of the air outlet pipe 6 is connected to the other end of the heat exchange tube 9. Several air outlet holes 7 are opened on one side of the air outlet pipe 6. The air outlet pipe 6 is located on one side of the turntable 5, and the air outlet holes 7 face the connecting... At the mesh plate 21, during actual use, the cleaned circuit board can be moved out of the cleaning tank 14 by the rotation of the turntable 5 driven by the drive motor 3. At the same time, the uncleaned circuit board is moved into the cleaning tank 14 along with another mesh plate 21 for cleaning. At this time, the cleaned circuit board moves to one side of the air outlet pipe 6. Then the controller 12 controls the air pump 18 to work. The air pump 18 delivers external air to the heat exchange tube 9 through the air outlet pipe 19. At the same time, the controller 12 controls the heating resistance wire 10 to work to heat the air in the heat exchange tube 9. The heated air is delivered to the air outlet pipe 6 and discharged through the air outlet 7 to dry the circuit board.

[0030] It should be noted that when the turntable 5 rotates, there is a gap between the edge of the connecting mesh plate 21 and the edges of the air outlet pipe 6 and the cleaning tank 14, so that the connecting mesh plate 21 will not collide with the edges of the air outlet pipe 6 and the cleaning tank 14 when it moves with the connecting rod 2.

[0031] It should be noted that the heat exchange tube 9 is arranged in an "S" shape or a serpentine shape, which can increase the laying length of the heat exchange tube 9 inside the heating cover 8, prolong the air flow time inside the heat exchange tube 9, and improve the heating effect.

[0032] It should be noted that both the exhaust pipe 6 and the exhaust port 7 are designed in an "S" or serpentine shape, which increases the jet area of ​​the exhaust port 7 and improves the drying effect.

[0033] Specifically, in use, the operator inserts the circuit board between two adjacent limiting blocks 17, then hangs the second hooks 20 at both ends of the connecting mesh plate 21 on the first hook 15. The controller 12 then controls the drive motor 3 to rotate, causing the turntable 5 to rotate, moving the circuit board into the cleaning tank 14 along with the connecting rod 2. Simultaneously, the controller 12 shuts off the drive motor 3 and controls the ultrasonic generator 11 and transducer 23 to operate, allowing the cleaning fluid in the cleaning tank 14 to clean the circuit board. While cleaning, the operator can place the circuit board to be cleaned on another connecting mesh plate 21. After a preset cleaning time, the controller 12 then controls the drive motor 3 to operate again, moving the circuit board... The circuit board in the washing tank 14 is moved to the inside of the mounting cover 4. At the same time, the circuit board to be cleaned is moved into the washing tank 14 for cleaning. Then, the controller 12 controls the heating resistance wire 10 and the air pump 18 to work. The air pump 18 delivers outside air to the heat exchange tube 9 through the air pipe 19. The heating resistance wire 10 heats the air in the heat exchange tube 9. The heated air is delivered to the air outlet pipe 6 and finally blown onto the surface of the cleaned circuit board through the air outlet 7 to dry the circuit board. Finally, the dried circuit board can be moved to the opening of the mounting cover 4 by the action of the turntable 5. The operator can remove the dried circuit board and place the uncleaned circuit board on the corresponding connecting mesh plate 21 to wait for subsequent cleaning.

[0034] Furthermore, elastic pads are provided on the adjacent surfaces of the two adjacent limiting blocks 17. This way, the circuit board will be clamped and fixed under the elastic force of the elastic pads during installation, preventing the circuit board from tipping over during cleaning.

[0035] Furthermore, such as Figure 1 As shown, several legs 22 are installed on the bottom edge of the base 1. The bottom of the legs 22 extends to the bottom of the cleaning tank 14 and the control cabinet 13. The legs 22 can support the base 1, so that the cleaning tank 14 and the control cabinet 13 can be installed under the base 1 without obstructing other components of the cleaning device.

[0036] Furthermore, a drain pipe 24 is installed at the bottom of the cleaning tank 14, and a valve is installed on the drain pipe 24. In actual use, the opening and closing of the drain pipe 24 can be controlled by the valve. When the cleaning liquid in the cleaning tank 14 is dirty, the staff can open the valve to discharge the cleaning liquid in the cleaning tank 14 through the drain pipe 24, and new cleaning liquid can be added into the cleaning tank 14 through the top opening for use.

[0037] 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. An ultrasonic cleaning device for circuit board processing, comprising a base (1), characterized in that: A cleaning tank (14) is installed at the bottom of the base (1). The top opening of the cleaning tank (14) is connected to the top of the base (1). A control cabinet (13) is installed on one side of the bottom of the base (1). A controller (12) is installed inside the control cabinet (13). An ultrasonic generator (11) is also installed inside the control cabinet (13). The ultrasonic generator (11) is connected to the controller (12) through a wire. A transducer (23) is installed at the bottom of the cleaning tank (14). The transducer (23) is connected to the ultrasonic generator (11) through a wire. The top of the base (1) is also equipped with a mounting cover (4). Both ends of the mounting cover (4) are rotatably connected to turntables (5). One side of one of the turntables (5) is connected to the output shaft of the drive motor (3), and the drive motor (3) is fixed on the side wall of the mounting cover (4). The drive motor (3) is connected to the controller (12) through wires. The edges of the two turntables (5) are connected by several connecting rods (2). Each link (2) is rotatably connected to a connecting ring (16) at both ends. Each connecting ring (16) has a first hook (15) installed at its bottom. Each first hook (15) has a second hook (20) suspended on it. The bottoms of two adjacent second hooks (20) are connected by a connecting mesh plate (21). Each connecting mesh plate (21) has several limiting blocks (17) installed at its top. A receiving groove is formed between two adjacent limiting blocks (17). Each receiving groove is provided with a circuit board. A heating cover (8) is installed on one side of the mounting cover (4). A heating resistance wire (10) is installed on the inside side of the heating cover (8). The heating resistance wire (10) is connected to the controller (12) through a wire. A heat exchange tube (9) is installed on the inside side of the heating cover (8). One end of the heat exchange tube (9) is connected to the outlet of the air pump (18) through the air supply pipe (19). The air pump (18) is fixed at the bottom of the base (1). The air pump (18) is connected to the controller (12) through a wire. An exhaust pipe (6) is installed on one side inside the mounting cover (4). One end of the exhaust pipe (6) is connected to the other end of the heat exchange tube (9), and several exhaust holes (7) are opened on one side of the exhaust pipe (6).

2. The ultrasonic cleaning device for circuit board processing according to claim 1, characterized in that: When the connecting rod (2) moves to the bottom of the turntable (5), the connecting mesh plate (21) and the limiting block (17) are both located in the cleaning tank (14), and the cleaning liquid inside the cleaning tank (14) overflows the circuit board.

3. The ultrasonic cleaning device for circuit board processing according to claim 1, characterized in that: Both the heat exchange tube (9) and the exhaust pipe (6) are arranged in an "S" shape or a serpentine shape.

4. The ultrasonic cleaning device for circuit board processing according to claim 1, characterized in that: Elastic pads are provided on the close surfaces of two adjacent limiting blocks (17).

5. The ultrasonic cleaning device for circuit board processing according to claim 1, characterized in that: Several legs (22) are installed on the bottom edge of the base (1), and the bottom of the legs (22) extends to the bottom of the cleaning tank (14) and the control cabinet (13).

6. The ultrasonic cleaning device for circuit board processing according to claim 1, characterized in that: The air outlet (6) is located on one side of the turntable (5), and the air outlet (7) faces the connecting mesh plate (21).

7. The ultrasonic cleaning device for circuit board processing according to claim 6, characterized in that: When the turntable (5) rotates, there is a gap between the edge of the connecting mesh plate (21) and the edge of the air outlet pipe (6) and the cleaning tank (14).

8. The ultrasonic cleaning device for circuit board processing according to claim 1, characterized in that: A drain pipe (24) is installed at the bottom of the cleaning tank (14), and a valve is installed on the drain pipe (24).

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