High-pressure spraying device for circuit board cleaning machine

Abstract

The utility model relates to the technical field of circuit board cleaning machines, and discloses a high-pressure spraying device for a circuit board cleaning machine, which is characterized in that one side of the outer wall of a primary cleaning bin is fixedly connected with a deep cleaning bin, one side of the outer wall of the deep cleaning bin is fixedly connected with a rinsing bin, and the outer wall of the primary cleaning bin is provided with a shunt pipe; and the end of the flow dividing pipe is fixedly connected to the interiors of the preliminary cleaning bin, the deep cleaning bin and the rinsing bin, a water flow distributor is arranged at the end of the flow dividing pipe, and low-pressure spraying assemblies are arranged in the preliminary cleaning bin and the rinsing bin correspondingly. According to the utility model, the problems that the spraying device is difficult to distribute the water jet scalpels step by step, the spraying mode, pressure and angle of water flow are single and fixed, and the cleaning efficiency is low are solved, the water jet scalpels distributed step by step can accurately cover the surface and holes of the whole circuit board, cleaning dead angles are avoided, and the cleaning uniformity is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit board cleaning machines, and in particular to a high-pressure spray device for circuit board cleaning machines. Background Technology

[0002] Circuit boards (PCBs) are core components of electronic devices, supporting and connecting various electronic components to enable efficient signal transmission within circuits. During the manufacturing process, flux, dust, and other microparticles can remain on the PCB surface. These contaminants can affect circuit performance and reliability, necessitating thorough cleaning using a PCB cleaning machine. To ensure thoroughness and efficiency, PCB cleaning machines are typically equipped with high-pressure spray devices. Through the spraying of high-pressure water or cleaning fluid, impurities are effectively removed from the surface and within pores, ensuring the electrical performance of the PCB, extending its service life, and improving its overall quality.

[0003] Traditional circuit board cleaning machines use high-pressure spray devices that employ a high-pressure pump to spray cleaning fluid onto the surface of the circuit boards. The powerful water jets remove surface dirt, flux residue, and other impurities. As the circuit boards pass through the cleaning area on a conveyor belt, the high-pressure nozzles evenly spray the cleaning fluid, achieving a thorough cleaning through the powerful water flow. After cleaning, the boards are typically air-dried or heat-dried to ensure they are completely dry and to prevent residual moisture from affecting subsequent processes or the board's performance. This method is highly efficient and suitable for rapid cleaning in mass production.

[0004] Traditional circuit board cleaning machines use high-pressure spray devices, which are relatively simple in design and usually use fixed nozzles and spray angles. It is difficult to gradually distribute water jets according to cleaning needs, resulting in a relatively simple and fixed water jet pattern, pressure and angle, which leads to low cleaning efficiency. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-pressure spray device for circuit board cleaning machines, which aims to improve the problem that traditional spray devices are difficult to gradually distribute water jets according to cleaning needs, resulting in a relatively simple and fixed water jet pattern, pressure and angle, which leads to low cleaning efficiency.

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

[0007] A high-pressure spray device for a circuit board cleaning machine includes a preliminary cleaning chamber, a deep cleaning chamber fixedly connected to one side of the outer wall of the preliminary cleaning chamber, and a rinsing chamber fixedly connected to one side of the outer wall of the deep cleaning chamber. A diversion pipe is provided on the outer wall of the preliminary cleaning chamber, and the end of the diversion pipe is fixedly connected to the interior of the preliminary cleaning chamber, the deep cleaning chamber, and the rinsing chamber. A water flow distributor is provided at the end of the diversion pipe. Low-pressure spray components are provided inside both the preliminary cleaning chamber and the rinsing chamber. The low-pressure spray components are used for pre-treatment and rinsing cleaning of the circuit board. A high-pressure spray component is provided inside the deep cleaning chamber. The high-pressure spray component is used for high-pressure spray cleaning of the circuit board.

[0008] The high-pressure spray assembly includes a second support column, the outer wall of which is fixedly connected to the interior of the deep cleaning chamber. A second spray roller is fixedly connected to one end of the second support column, a rotary joint is fixedly connected to one end of the second spray roller, and one end of the rotary joint is fixedly connected to the end of the diverter pipe. A second high-pressure nozzle is fixedly connected inside the second spray roller, and a convergent planar guide plate is fixedly connected to the outer wall of the second high-pressure nozzle.

[0009] Furthermore, the low-pressure spray assembly includes a support column, the outer wall of which is fixedly connected to the interior of the preliminary cleaning chamber and the rinsing chamber. One end of the support column is fixedly connected to a spray roller, one end of which is fixedly connected to the end of the diverter pipe. A high-pressure nozzle is fixedly connected inside the spray roller, and a fan-shaped guide plate is fixedly connected to the outer wall of the spray roller.

[0010] Furthermore, a fixed seat is rotatably connected to the outer wall of the second support column, a drive rod is rotatably connected inside the fixed seat, a worm gear is fixedly connected to the outer wall of the drive rod, a worm wheel is fixedly connected to the outer wall of the second support column, the worm gear meshes with the worm wheel, and an observation component is provided at one end of the second support column for observing the rotation angle of the second spray roller.

[0011] Furthermore, the observation component includes a pointer, the outer wall of which is fixedly connected to one end of the second support column, and a dial is fixedly connected to the outer wall of the mounting base.

[0012] Furthermore, one side of the outer wall of the fixed seat is fixedly connected to the outer wall of the deep cleaning chamber, and the fixed seat is used to facilitate the angle adjustment of the second spray roller.

[0013] Furthermore, the outer wall of the pointer is slidably connected to the outer wall of the dial, and the pointer is used to view the rotation angle of the spray roller in real time.

[0014] Furthermore, the outer wall of the worm gear is rotatably connected to the inside of the fixed base, and the worm gear is used to drive the second support column and the second spray roller to rotate.

[0015] Furthermore, the outer wall of the worm is rotatably connected inside the fixed base, and the worm is used to drive the worm wheel to rotate.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, water is first supplied to the spray roller and the converging planar guide plate through the diversion pipe and water flow distributor. Then, it is used in conjunction with the high-pressure nozzle and the fan-shaped guide plate for preliminary and gentle rinsing at the tail end. In addition, the converging planar guide plate with multiple angles is used in conjunction with the high-pressure nozzle to perform all-round high-pressure rinsing of the circuit board. This solves the problem that the spray device is difficult to gradually distribute the water jets, resulting in a relatively simple and fixed water jet pattern, pressure and angle, which leads to low cleaning efficiency. The gradually distributed water jets can accurately cover the entire surface and holes of the circuit board, avoid cleaning dead corners, and ensure the uniformity of cleaning.

[0018] 2. In this utility model, the drive rod, in conjunction with the worm gear and worm wheel, drives the second support column to rotate. This, in turn, drives the second spray roller, the second high-pressure nozzle below, and the converging planar guide plate to rotate and adjust. During this process, the angle can be observed and adjusted in real time through the pointer and dial, thus enabling the angle adjustment of the second high-pressure nozzle. This allows for flexible adjustment of the spray direction according to the specific structure of the circuit board, so that the water flow impacts the surface and holes of the circuit board from different angles, ensuring thorough cleaning. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of one side of the diversion pipe of the spray device of this utility model;

[0021] Figure 3 This is a schematic diagram of one side of the rotary joint structure of the spray device of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the fixed base of the spray device of this utility model.

[0023] Legend:

[0024] 1. Preliminary cleaning chamber; 2. Deep cleaning chamber; 3. Rinse chamber; 4. Diverter pipe; 5. Water flow distributor; 6. Support column one; 7. Spray roller one; 8. High-pressure nozzle one; 9. Fan-shaped guide plate; 10. Support column two; 11. Spray roller two; 12. High-pressure nozzle two; 13. Converging flat guide plate; 14. Rotary joint; 15. Fixed base; 16. Drive rod; 17. Worm gear; 18. Worm wheel; 19. Pointer; 20. Dial. 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] Reference Figures 1-3 This utility model provides an embodiment of a high-pressure spray device for a circuit board cleaning machine, including a preliminary cleaning chamber 1, a deep cleaning chamber 2 fixedly connected to one side of the outer wall of the preliminary cleaning chamber 1, and a rinsing chamber 3 fixedly connected to one side of the outer wall of the deep cleaning chamber 2. The circuit board is cleaned in layers through the preliminary cleaning chamber 1, the deep cleaning chamber 2, and the rinsing chamber 3. A diversion pipe 4 is provided on the outer wall of the preliminary cleaning chamber 1, the deep cleaning chamber 2, and the rinsing chamber 3. A water flow distributor 5 is provided at the end of the diversion pipe 4 to deliver water to the interior of the preliminary cleaning chamber 1, the deep cleaning chamber 2, and the rinsing chamber 3. In addition, the water flow distributor 5 can adjust the water pressure according to the needs of the preliminary cleaning chamber 1, the deep cleaning chamber 2, and the rinsing chamber 3. Low-pressure spray components are provided inside the preliminary cleaning chamber 1 and the rinsing chamber 3. The low-pressure spray components are used for pre-treatment and rinsing cleaning of the circuit board. A high-pressure spray component is provided inside the deep cleaning chamber 2. The high-pressure spray component is used for high-pressure spray cleaning of the circuit board.

[0027] The high-pressure spray assembly includes a second support column 10, whose outer wall is fixedly connected to the interior of the deep cleaning chamber 2. A second spray roller 11 is fixedly connected to one end of the second support column 10, and a rotary joint 14 is fixedly connected to one end of the second spray roller 11. The rotary joint 14 prevents the diversion pipe 4 from rotating synchronously when the second spray roller 11 rotates, thus avoiding damage to the diversion pipe 4. One end of the rotary joint 14 is fixedly connected to the end of the diversion pipe 4. A high-pressure nozzle 12 is fixedly connected inside the second spray roller 11, and a converging planar guide plate 13 is fixedly connected to the outer wall of the high-pressure nozzle 12. The high-pressure nozzle 12 drives the water source inside the second spray roller 11 to be sprayed at high pressure into the converging planar guide plate 13. Inside, the water is then pressurized and sprayed onto the circuit board via a converging planar guide plate 13. The low-pressure spray assembly includes a support column 6. The outer wall of the support column 6 is fixedly connected to the interior of the preliminary cleaning chamber 1 and the rinsing chamber 3. One end of the support column 6 is fixedly connected to a spray roller 7. One end of the spray roller 7 is fixedly connected to the end of the diversion pipe 4. A high-pressure nozzle 8 is fixedly connected inside the spray roller 7. A fan-shaped guide plate 9 is fixedly connected to the outer wall of the spray roller 7. First, the support column 6 supports the spray roller 7. Then, the high-pressure nozzle 8 drives the water inside the spray roller 7 to spray into the fan-shaped guide plate 9. At this time, the fan-shaped guide plate 9 evenly sprays the water onto the circuit board to clean large particles of dirt.

[0028] Reference Figure 1 , Figure 3 and Figure 4 A fixed seat 15 is rotatably connected to the outer wall of the second support column 10. A drive rod 16 is rotatably connected inside the fixed seat 15. A worm gear 17 is fixedly connected to the outer wall of the drive rod 16. A worm wheel 18 is fixedly connected to the outer wall of the second support column 10. The worm gear 17 meshes with the worm wheel 18. The drive rod 16 drives the worm gear 17 to rotate. Then, through the meshing relationship between the worm gear 17 and the worm wheel 18, the worm wheel 18 drives the second support column 10 to rotate with the rotation of the worm gear 17, thereby driving the second spray roller 11 to rotate and adjust. An observation component is provided at one end of the second support column 10. The observation component is used to observe the rotation angle of the second spray roller 11. The observation component includes a pointer 19. The outer wall of the pointer 19 is fixedly connected to one end of the second support column 10. A dial 20 is fixedly connected to the outer wall of the base 15. The rotation of the second support column 10 drives the pointer 19 to slide on the outer wall of the dial 20, so that the angle can be observed and adjusted in real time through the scale on the outer wall of the dial 20. One side of the outer wall of the fixed base 15 is fixedly connected to the outer wall of the deep cleaning chamber 2. The fixed base 15 is used to facilitate the angle adjustment of the second spray roller 11. The outer wall of the pointer 19 is slidably connected to the outer wall of the dial 20. The pointer 19 is used to observe the rotation angle of the second spray roller 11 in real time. The outer wall of the worm gear 18 is rotatably connected to the inside of the fixed base 15. The worm gear 18 is used to drive the second support column 10 and the second spray roller 11 to rotate. The outer wall of the worm 17 is rotatably connected to the inside of the fixed base 15. The worm 17 is used to drive the worm gear 18 to rotate.

[0029] Working principle: When the high-pressure spray device for the circuit board cleaning machine is needed, first connect one end of the diversion pipe 4 to the external water source, and then drive the water flow distributor 5 to drive the corresponding pressure to the preliminary cleaning chamber 1, the deep cleaning chamber 2 and the rinsing chamber 3, thereby delivering the water source to the inside of the spray roller 7 and the spray roller 11. During this process, the water flow inside the spray roller 7 is delivered to the inside of the fan-shaped guide plate 9 through the high-pressure nozzle 8, and then the water flow is delivered to the circuit board for preliminary cleaning through the fan-shaped guide plate 9. Next, the water flow inside the spray roller 11 is delivered to the inside of the converging plane guide plate 13 through the high-pressure nozzle 12, and finally the high-pressure water is sprayed onto the circuit board through the converging plane guide plate 13. During this process, because the three spray rollers 11 inside the deep cleaning chamber 2 are combined at 45 degrees, 60 degrees and 90 degrees, the water flow can cross and cover the surface of the circuit board, achieving efficient cleaning.

[0030] In addition, the drive rod 16 drives the worm gear 17 to rotate, which in turn drives the support column 10 to rotate through the worm wheel 18. In turn, the support column 10 drives the spray roller 11 to rotate, thereby adjusting the angle. During this process, the rotation of the support column 10 will cause the pointer 19 to slide on the outer wall of the dial 20. The angle of the spray roller 11 can be observed in real time by using the scale of the dial 20.

[0031] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are 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 high-pressure spray device for a circuit board cleaning machine, comprising a preliminary cleaning chamber (1), characterized in that: A deep cleaning chamber (2) is fixedly connected to one side of the outer wall of the preliminary cleaning chamber (1), and a rinsing chamber (3) is fixedly connected to one side of the outer wall of the deep cleaning chamber (2). A diversion pipe (4) is provided on the outer wall of the preliminary cleaning chamber (1). The end of the diversion pipe (4) is fixedly connected to the interior of the preliminary cleaning chamber (1), the deep cleaning chamber (2), and the rinsing chamber (3). A water flow distributor (5) is provided at the end of the diversion pipe (4). Low-pressure spraying components are provided inside the preliminary cleaning chamber (1) and the rinsing chamber (3). The low-pressure spraying components are used for pre-treatment and rinsing cleaning of the circuit board. A high-pressure spraying component is provided inside the deep cleaning chamber (2). The high-pressure spraying component is used for high-pressure spray cleaning of the circuit board. The high-pressure spray assembly includes a second support column (10), the outer wall of which is fixedly connected to the inside of the deep cleaning chamber (2). One end of the second support column (10) is fixedly connected to a second spray roller (11), one end of which is fixedly connected to a rotary joint (14), one end of which is fixedly connected to the end of the diverter pipe (4). The inside of the second spray roller (11) is fixedly connected to a second high-pressure nozzle (12), and the outer wall of the second high-pressure nozzle (12) is fixedly connected to a converging planar guide plate (13).

2. The high-pressure spray device for circuit board cleaning machine according to claim 1, characterized in that: The low-pressure spray assembly includes a support column (6), the outer wall of which is fixedly connected to the interior of the preliminary cleaning chamber (1) and the rinsing chamber (3). One end of the support column (6) is fixedly connected to a spray roller (7), one end of which is fixedly connected to the end of the diverter pipe (4). The interior of the spray roller (7) is fixedly connected to a high-pressure nozzle (8), and the outer wall of the spray roller (7) is fixedly connected to a fan-shaped guide plate (9).

3. The high-pressure spray device for circuit board cleaning machine according to claim 1, characterized in that: The outer wall of the second support column (10) is rotatably connected to a fixed seat (15), the inside of the fixed seat (15) is rotatably connected to a drive rod (16), the outer wall of the drive rod (16) is fixedly connected to a worm (17), the outer wall of the second support column (10) is fixedly connected to a worm wheel (18), the worm (17) and the worm wheel (18) mesh, and one end of the second support column (10) is provided with an observation component, which is used to observe the rotation angle of the second spray roller (11).

4. The high-pressure spray device for circuit board cleaning machine according to claim 3, characterized in that: The observation component includes a pointer (19), the outer wall of which is fixedly connected to one end of the second support (10), and the outer wall of the mounting base (15) is fixedly connected to a dial (20).

5. The high-pressure spray device for a circuit board cleaning machine according to claim 3, characterized in that: The outer wall of the fixed seat (15) is fixedly connected to the outer wall of the deep cleaning chamber (2), and the fixed seat (15) is used to facilitate the angle adjustment of the spray roller (11).

6. The high-pressure spray device for a circuit board cleaning machine according to claim 4, characterized in that: The pointer (19) is slidably connected to the outer wall of the dial (20), and the pointer (19) is used to view the rotation angle of the spray roller (11) in real time.

7. The high-pressure spray device for a circuit board cleaning machine according to claim 3, characterized in that: The outer wall of the worm gear (18) is rotatably connected to the inside of the fixed base (15), and the worm gear (18) is used to drive the second support column (10) and the second spray roller (11) to rotate.

8. The high-pressure spray device for a circuit board cleaning machine according to claim 3, characterized in that: The outer wall of the worm (17) is rotatably connected to the inside of the fixed seat (15), and the worm (17) is used to drive the worm wheel (18) to rotate.

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