A high-efficiency intelligent adjusting device for plate washing water flow rate

Abstract

This invention provides a highly efficient and intelligent device for regulating the flow rate of washing water, belonging to the field of circuit board cleaning technology. It includes an air inlet pipe, a regulating valve, a water pump, a flow meter, and a water outlet pipe connected together, as well as a water tank filled with washing water. The regulating valve, water pump, and flow meter are mounted on the water tank. The water pump is used to pump the washing water. It also includes a guide rail, and a belt conveyor is fixed to the water tank via a bracket. Through the arrangement of the belt conveyor, long nozzles, and brush bristles, the circuit board passes through the long nozzles during its transport by the belt conveyor. The long nozzles spray washing water onto the circuit board, and the brush bristles clean the areas of the circuit board with washing water. Once the circuit board is removed from the bottom of the long shell, a complete cleaning of the circuit board is achieved. This eliminates the need for manual handheld electrostatic brushing, saving cleaning time and improving the cleaning efficiency of large-volume circuit boards.

Description

Technical Field

[0001] This invention relates to the field of circuit board cleaning technology, and in particular to a highly efficient and intelligent device for adjusting the flow rate of cleaning water. Background Technology

[0002] Circuit boards typically require cleaning after soldering to remove flux residues used during the soldering process. To clean them, connect a water pump to a container filled with cleaning water, turn the flow meter knob to adjust the water flow rate, and then start the pump. The pump will deliver the cleaning water through the water pipe to the electrostatic brush. Move the electrostatic brush onto the circuit board, and the brush will spray out cleaning water that adheres to the board. Moving the brush will then remove any flux residues from the circuit board. Once cleaning is complete, remove the clean circuit board.

[0003] Common intelligent and efficient flow rate adjustment devices for PCB washing involve pumping washing water to an electrostatic brush, which then sprays the washing water. During this process, the brush is manually moved back and forth across the PCB to ensure thorough cleaning. However, cleaning a single PCB takes a considerable amount of time, and when cleaning a large number of PCBs, the cleaning efficiency is insufficient. Therefore, this application provides an intelligent and efficient flow rate adjustment device for PCB washing to meet this need. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a highly efficient and intelligent device for adjusting the flow rate of washing water to solve the problem of low efficiency in manual cleaning of circuit boards.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A high-efficiency intelligent regulating device for the flow rate of washing board water includes an air inlet pipe, a regulating valve, a water pump, a flow meter, and a water outlet pipe connected together, and also includes a water tank filled with washing board water. The regulating valve, water pump, and flow meter are installed on the water tank. The water pump is used to pump the washing board water, and the device further includes:

[0007] The water tank is supported by a guide rail and a belt conveyor. Several push blocks are fixed to the conveyor belt. Several fixed blocks are fixed to both sides of the belt conveyor, and guide rods are fixed to the sides of the fixed blocks. There are two guide rails, and movable blocks are fixed to the opposite sides of both guide rails. The movable blocks are movably fitted onto the guide rods. A tension spring is fixed between the fixed blocks and the movable blocks, and the guide rods are located within the tension springs. A circuit board is placed on the guide rails, with its side abutting against the side of one of the push blocks. Two bent rods are fixed to both sides of the belt conveyor. A long shell is fixed between the guide rails. A notch is opened on the guide rail corresponding to the long shell. The long shell is located in the notch. The inner wall of the long shell is circular, and a long through groove is opened at the bottom of the inner wall of the long shell. A long nozzle is fixed at the bottom of the long shell corresponding to the long through groove. Brush bristles are fixed at the bottom of the long shell. The end of the water outlet pipe away from the water pump is connected to the long shell. A sensing element is set on the side of the long shell. The water pump is used to deliver the washing water to the long shell and spray it out from the long nozzle. The washing water is sprayed onto the circuit board, and the brush bristles clean the parts of the circuit board with washing water.

[0008] The seal is located inside the elongated shell and the elongated nozzle. When circuit boards of different sizes are placed, the guide rail moves the seal and makes the seal flush with the side of the circuit board.

[0009] Preferably, the sealing element includes two pistons disposed inside the elongated shell. The pistons are used for sealing the inside of the elongated shell. A connecting block and a V-shaped sealing strip are fixed to the bottom of the pistons respectively. The V-shaped sealing strip is fixed to the side of the connecting block and is used for sealing the inside of the elongated through groove and the elongated nozzle. A fixing frame is fixed to the side of the guide rail away from the circuit board. A hollow bent tube is fixed to the side of the fixing frame. The hollow bent tube moves through the bent rod and the elongated shell in sequence on the side away from the fixing frame and is fixedly connected to the side of the pistons.

[0010] Preferably, connecting strips are fixed on both sides of the inner wall of the V-shaped sealing strip, and a spring is fixed between the two connecting strips. A through hole is opened on the side of the spring.

[0011] Preferably, the V-shaped sealing strip includes a sealing part and a connecting part connected together, the thickness of the connecting part is less than the thickness of the sealing part, and the connecting strip is fixed to the inner wall of the sealing part.

[0012] Preferably, a collection component is provided on the guide rail at the lower part of the elongated shell. The collection component includes a rubber collection box embedded in the guide rail. The side of the rubber collection box is provided with a scraping surface that fits against the side of the circuit board. The rubber collection box is provided with a bottom fitting surface corresponding to the bottom of the circuit board, which fits against the bottom of the circuit board. A square groove is provided on the rubber collection box corresponding to the bristle position. A round hole is provided at the bottom of the guide rail. A square box is fixed at the bottom of the guide rail. A collection drawer is slidably connected inside the square box. The round hole is used for communication between the square box and the rubber collection box.

[0013] Preferably, a rubber scraper is fixed on the scraping surface of the rubber collection box, the bottom of the rubber scraper is attached to the top of the circuit board, and an inclined surface is provided on the side of the rubber scraper near the elongated nozzle.

[0014] Preferably, a rubber diaphragm is fixed to the side of the piston two, and a receiving groove is opened on the side of the piston two corresponding to the rubber diaphragm. The receiving groove is connected to the hollow bend tube. An annular groove is opened on the inner wall of the hollow bend tube. A piston one is slidably connected in the annular groove. A tension spring one is fixed on the side of the piston one away from the rubber collection box. The end of the tension spring one away from the piston one is fixedly connected to the side of the inner wall of the annular groove. A push rod is fixed on the side of the piston one close to the rubber collection box. The end of the push rod away from the piston one moves through the fixing frame and is fixed with a push frame. The push frame is attached to the side of the rubber collection box away from the circuit board. Hydraulic oil is filled in the receiving groove, the hollow bend tube and the annular groove.

[0015] Preferably, the inner wall of the receiving groove is curved on the side away from the rubber diaphragm.

[0016] Preferably, a plurality of pressure rollers are rotatably connected to the guide rail, and the pressure rollers press on the circuit board.

[0017] Preferably, the end of the guide rail is provided with a bent portion.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] In the above solution, the circuit board is conveyed by a belt conveyor, a long nozzle, and brush bristles. As the circuit board is conveyed by the belt conveyor, it passes the long nozzle. The long nozzle sprays washing water onto the circuit board, and the brush bristles clean the parts of the circuit board that have washing water on them. Once the circuit board is removed from the bottom of the long shell, the circuit board can be thoroughly cleaned. There is no need for manual hand-held electrostatic brushing, which saves the cleaning time of the circuit board and improves the cleaning efficiency of large batches of circuit boards.

[0020] By designing the seal, when different sized circuit boards are placed, the guide rail drives the seal to move and align it with the side of the circuit board, achieving automatic adaptation to different sized circuit boards and making it more convenient to use. Furthermore, during the spraying of cleaning fluid, the pressurized cleaning fluid acts on the spring and enters the V-shaped sealing strip of the seal. The deformation of the spring, through the connecting strip, causes the sealing part of the V-shaped seal to fit tightly against the inner wall of the long groove and the long nozzle. Simultaneously, the pressurized cleaning fluid acts on the sealing part, further ensuring a tight seal between the sealing part and the inner wall of the long groove and the long nozzle, thereby improving the sealing ability of the V-shaped sealing strip. When the V-shaped sealing strip moves, there is no cleaning fluid at the V-shaped sealing strip. At this time, the spring returns to its undeformed state, causing the sealing part to slightly contract inward, reducing the tightness of the seal between the sealing part and the inner wall of the long groove and the long nozzle, and reducing the friction between the sealing part and the long groove and the long nozzle, thus making the movement of the piston and the V-shaped sealing strip smoother.

[0021] By collecting the components, the circuit board is moved and the components are used to scrape off the washing water from the sides of the circuit board, preventing the washing water from flowing down onto the guide rail, reducing the trouble of subsequent cleaning, and preventing the washing water from falling onto the guide rail and contaminating the bottom of the circuit board. Attached Figure Description

[0022] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a cross-sectional view of the guide rod of the present invention;

[0025] Figure 3 This is an enlarged view of the circuit board structure of the present invention;

[0026] Figure 4 This is a cross-sectional view of the hollow bend of the present invention;

[0027] Figure 5 This is an enlarged view of the piston structure at two points in this invention;

[0028] Figure 6 This is a top cross-sectional view of a piston of the present invention;

[0029] Figure 7 This is a left sectional view of the elongated nozzle of the present invention;

[0030] Figure 8 This is a three-dimensional structural diagram of the sealing element of the present invention;

[0031] Figure 9 This is a cross-sectional view of the V-shaped sealing strip of the present invention;

[0032] Figure 10 This is a three-dimensional structural diagram of the collection component of the present invention;

[0033] Figure 11 This is a cross-sectional view of the rubber collection box of the present invention.

[0034] [Figure Labels]

[0035] 1. Water tank; 2. Water pump; 3. Flow meter; 4. Belt conveyor; 5. Push block; 6. Circuit board; 7. Guide rail; 71. Bending part; 8. Collection assembly; 81. Rubber collection box; 811. Scraping surface; 812. Bottom contact surface; 813. Square groove; 82. Rubber scraper; 83. Receiving groove; 84. Rubber diaphragm; 85. Annular groove; 86. Tension spring one; 87. Piston one; 88. Push rod; 89. Push frame; 9. Seal; 91. Piston two; 92. Connecting block; 9 3. V-shaped sealing strip; 931. Sealing part; 932. Connecting part; 94. Spring; 95. Through hole; 96. Connecting strip; 10. Long strip shell; 11. Long strip through groove; 12. Long strip nozzle; 13. Brush bristles; 14. Pressure roller; 15. Fixing block; 16. Guide rod; 17. Tension spring II; 18. Movable block; 19. Bent rod; 20. Hollow bent tube; 21. Notch; 22. Fixing frame; 23. Square box; 24. Collection drawer; 25. Round hole; 26. Sensing element; 27. Water outlet pipe.

[0036] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0037] The following is a detailed description of a high-efficiency intelligent regulating device for the flow rate of washing plate water provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0038] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0039] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0040] like Figures 1-11 As shown, an embodiment of the present invention provides a high-efficiency intelligent regulating device for the flow rate of washing board water, including an air inlet pipe (not shown in the figure), a regulating valve (not shown in the figure), a water pump 2, a flow regulator 3, and a water outlet pipe 27 connected together. The water pump 2 is a pneumatic pump. One end of the air inlet pipe is connected to an air compressor, and the other end is connected to the regulating valve. The regulating valve is used to regulate the air inlet flow rate, thereby controlling the rotation speed of the water pump 2. It also includes a water tank 1 filled with washing board water. The regulating valve, the water pump 2, and the flow regulator 3 are installed on the water tank 1. The water pump 2 is used to pump the washing board water, and the flow regulator 3 is used to regulate the flow rate of the washing board water. It also includes:

[0041] A belt conveyor 4 is fixed to the water tank 1 via a bracket on the guide rail 7. Several push blocks 5 are fixed on the conveyor belt of the belt conveyor 4. Several fixing blocks 15 are fixed on both sides of the belt conveyor 4. Guide rods 16 are fixed on the sides of the fixing blocks 15. There are two guide rails 7, and movable blocks 18 are fixed on the opposite sides of the two guide rails 7. The movable blocks 18 are movably sleeved on the guide rods 16. A tension spring 17 is fixed between the fixing blocks 15 and the movable blocks 18. The guide rods 16 are located inside the tension spring 17. Circuit board 6 is placed on guide rail 7, which guides the movement of circuit board 6 to make its movement smoother. The side of circuit board 6 is in contact with the side of one of the push blocks 5. The push block 5 moves under the operation of the conveyor belt on belt conveyor 4, thereby pushing circuit board 6 to move. Bending rods 19 are fixed on both sides of belt conveyor 4, and a long strip shell 10 is fixed between the two bending rods 19. The bending rods 19 are used to fix the long strip shell 10 above circuit board 6. The guide rail 7 has openings corresponding to the long strip shell 10. A notch 21 is provided, and a long strip shell 10 is located inside the notch 21. The inner wall of the long strip shell 10 is circular, and a long strip through groove 11 is opened at the bottom of the inner wall of the long strip shell 10. A long strip nozzle 12 is fixed at the bottom of the long strip shell 10 corresponding to the long strip through groove 11. Brush bristles 13 are fixed at the bottom of the long strip shell 10. The end of the water outlet pipe 27 away from the water pump 2 is connected to the long strip shell 10. A sensing element 26 is provided on the side of the long strip shell 10. After the sensing element 26 senses the circuit board 6, it sends a signal to the information processing unit. The processing unit controls the water pump 2 to start, which is used to deliver the washing water into the long shell 10 and spray it out from the long nozzle 12. The washing water is sprayed onto the circuit board 6, and the brush 13 cleans the parts of the circuit board 6 that are covered with washing water. After the circuit board 6 passes through the long nozzle 12 and the brush 13, the circuit board 6 can be thoroughly cleaned without the need for manual cleaning, saving cleaning time and improving the cleaning efficiency of large batches of circuit boards 6.

[0042] The seal 9 is located inside the elongated shell 10 and the elongated nozzle 12. When different sized circuit boards 6 are placed, the guide rail 7 drives the seal 9 to move and make the seal 9 flush with the side of the circuit board 6. There is no need to manually adjust the position of the seal 9, making it more convenient to use.

[0043] like Figure 5 , Figure 7 , Figure 8 and Figure 9As shown, in this embodiment, the sealing element 9 includes two pistons 91 disposed inside the elongated shell 10. The pistons 91 are used for sealing the inside of the elongated shell 10. A connecting block 92 and a V-shaped sealing strip 93 are respectively fixed to the bottom of the pistons 91. The V-shaped sealing strip 93 is fixed to the side of the connecting block 92 and is used for sealing the inside of the elongated through groove 11 and the elongated nozzle 12. A fixing bracket 22 is fixed to the side of the guide rail 7 away from the circuit board 6. A hollow bent tube 20 is fixed to the side of the fixing bracket 22. The hollow bent tube 20 moves through the bent rod 19 and the elongated shell 10 in sequence on the side away from the fixing bracket 22 and is connected to the pistons 91. The side is fixedly connected. When the seal 9 moves, the piston 91 slides against the inner wall of the elongated shell 10. While sliding, it still has the ability to seal the inside of the elongated shell 10. The V-shaped sealing strip 93 slides against the inner wall of the elongated groove 11 and the elongated nozzle 12. While sliding, it still has the ability to seal the elongated groove 11 and the elongated nozzle 12. When the seal 9 stops moving, the piston 91 fits against the inner wall of the elongated shell 10 to achieve a seal inside the elongated shell 10. The V-shaped sealing strip 93 fits tightly against the inner wall of the elongated groove 11 and the elongated nozzle 12 to achieve a seal inside the elongated groove 11 and the elongated nozzle 12.

[0044] like Figure 8 and Figure 9 As shown in this embodiment, connecting strips 96 are fixed on both sides of the inner wall of the V-shaped sealing strip 93, and a spring piece 94 is fixed between the two connecting strips 96. A through hole 95 is opened on the side of the spring piece 94. When pressurized washing water acts on the spring piece 94, it deforms and squeezes the connecting strip 96, causing the connecting strip 96 to drive the V-shaped sealing strip 93 to fit tightly against the inner wall of the elongated groove 11 and the elongated nozzle 12. At the same time, pressurized washing water enters the V-shaped sealing strip 93 through the through hole 95, causing the V-shaped sealing strip 93 to further fit against the elongated groove 11 under the action of water pressure. The V-shaped sealing strip 93 fits tightly against the inner wall of the elongated nozzle 12, thereby improving its sealing ability. When there is no water in the V-shaped sealing strip 93, the spring 94 returns to its undeformed state. At this time, the spring 94 drives the V-shaped sealing strip 93 to slightly retract inward through the connecting strip 96 (but it is still in contact with the inner wall of the elongated groove 11 and the elongated nozzle 12, and still has sealing ability). This reduces the friction between the V-shaped sealing strip 93 and the inner wall of the elongated groove 11 and the elongated nozzle 12, making the movement of the sealing element 9 smoother and improving the service life of the V-shaped sealing strip 93.

[0045] like Figure 9As shown, in this embodiment, the V-shaped sealing strip 93 includes a sealing part 931 and a connecting part 932 connected to each other. The thickness of the connecting part 932 is less than the thickness of the sealing part 931. The connecting strip 96 is fixed to the inner wall of the sealing part 931. The thickness of the connecting part 932 is less than the thickness of the sealing part 931, which is used to reduce the resistance to deformation of the sealing part 931 and make the deformation of the sealing part 931 smoother.

[0046] like Figure 5 , Figure 10 and Figure 11 As shown in this embodiment, a collection component 8 is provided on the guide rail 7 below the elongated shell 10. The collection component 8 includes a rubber collection box 81 embedded in the guide rail 7. The side of the rubber collection box 81 is provided with a scraping surface 811, which is in contact with the side of the circuit board 6. A bottom contact surface 812 is provided on the rubber collection box 81 at the bottom position of the circuit board 6, which is in contact with the bottom of the circuit board 6. A square groove 813 is provided on the rubber collection box 81 at the position corresponding to the bristles 13. A round hole 25 is provided at the bottom of the guide rail 7. A square box 23 is fixed at the bottom of the guide rail 7. A collection drawer 24 is slidably connected inside the square box 23. The round hole 25 is used for the square box 23 to... The rubber collection box 81 is connected, and the scraping surface 811 of the rubber collection box 81 is in close contact with the side of the circuit board 6. The scraping surface 811 and the rubber scraper 82 cooperate to scrape the washing water behind the brush bristles 13 on the side of the circuit board 6. The scraped washing water enters the rubber collection box 81 and falls into the collection drawer 24 through the round hole 25. The collection drawer 24 is pulled out from the square box 23 periodically and the washing water is poured out. After pouring out, the collection drawer 24 is pushed back into the square box 23 to continue collecting the washing water. The bottom contact surface 812 is used to prevent the washing water from flowing to the bottom of the circuit board 6, thereby preventing the washing water from contaminating the bottom of the circuit board 6.

[0047] like Figure 10 and Figure 11 As shown in this embodiment, a rubber scraper 82 is fixed on the scraping surface 811 of the rubber collection box 81. The bottom of the rubber scraper 82 is attached to the top of the circuit board 6. An inclined surface is provided on the side of the rubber scraper 82 near the elongated nozzle 12. The rubber scraper 82 is used to scrape the washing water on the top of the circuit board 6 near the side, and the inclined surface guides the washing water into the rubber collection box 81 to prevent the scraped washing water from flowing randomly.

[0048] like Figure 5 and Figure 6As shown, in this embodiment, a rubber diaphragm 84 is fixed to the side of piston 2 91. A receiving groove 83 is formed on the side of piston 2 91 corresponding to the rubber diaphragm 84. The receiving groove 83 is connected to the hollow bent tube 20. An annular groove 85 is formed on the inner wall of the hollow bent tube 20. A piston 1 87 is slidably connected in the annular groove 85. A tension spring 1 86 is fixed to the side of piston 1 87 away from the rubber collection box 81. The end of tension spring 1 86 away from piston 1 87 is fixedly connected to the side of the inner wall of the annular groove 85. A push rod 88 is fixed to the side of piston 1 87 near the rubber collection box 81. The end of push rod 88 away from piston 1 87 moves through the fixing frame 22. A pusher 89 is fixed thereon, which is attached to the side of the rubber collection box 81 away from the circuit board 6. Hydraulic oil is filled in the receiving groove 83, the hollow bend 20 and the annular groove 85. The rubber diaphragm 84 on the piston 91 is compressed towards the receiving groove 83 by the pressure of the washing water. The rubber diaphragm 84 squeezes the hydraulic oil, which squeezes the piston 87 in the annular groove 85 through the hollow bend 20. The piston 87 drives the tension spring 86 to stretch and at the same time drives the pusher 89 to move through the push rod 88. The pusher 89 squeezes the rubber collection box 81, so that the scraping surface 811 of the rubber collection box 81 is tightly attached to the side of the circuit board 6.

[0049] like Figure 5 As shown in this embodiment, the side of the inner wall of the receiving groove 83 away from the rubber diaphragm 84 is curved. The curved surface is used to gather the hydraulic oil, so that the hydraulic oil can smoothly enter the hollow bend 20.

[0050] like Figure 3 As shown in this embodiment, a number of pressure rollers 14 are rotatably connected to the guide rail 7. The pressure rollers 14 press on the circuit board 6. A block is fixed on the guide rail 7. A rotating shaft is fixed on the side of the block. The pressure rollers 14 are rotatably connected to the rotating shaft. The pressure rollers 14 press on the circuit board 6, making the movement of the circuit board 6 on the guide rail 7 smoother.

[0051] like Figure 10 As shown, in this embodiment, the end of the guide rail 7 is provided with a bending part 71. The circuit board 6 is placed on the guide rail 7 from the bending part 71. When placed, the side of the circuit board 6 presses against the inner wall of the bending part 71, causing the guide rail 7 to drive the movable block 18 to move along the guide rod 16. The bending part 71 is used to make the guide rail 7 adapt to circuit boards 6 of different sizes.

[0052] Working principle: The circuit board 6 is placed on the guide rail 7 from the bend 71. When placed, the side of the circuit board 6 presses against the inner wall of the bend 71, causing the guide rail 7 to drive the movable block 18 to move along the guide rod 16 and drive the tension spring 17 to be in a stretched state. When the tension spring 17 is used, the guide rail 7 supports the circuit board 6 and makes the guide rail 7 fit against the side of the circuit board 6. At the same time, the conveyor belt of the belt conveyor 4 runs, causing the side of the push block 5 to fit against the side of the circuit board 6. The fit causes the push block 5 to move with the conveyor belt, realizing the conveying of the circuit board 6. The circuit board 6 passes under the sensing element 26 and passes through the bottom of the long nozzle 12. After the sensing element 26 senses the circuit board 6, the water pump 2 runs, pumping the washing water through the water outlet pipe 27 into the long shell 10 and spraying it out from the long nozzle 12. The washing water is sprayed onto the circuit board 6, and the brush bristles 13 clean the part of the circuit board 6 with washing water. The remaining circuit boards 6 are placed on the guide rail 7 in turn, thereby realizing the cleaning of the remaining circuit boards 6.

[0053] When the guide rail 7 moves, it drives the hollow bend 20 to move via the fixing frame 22. The hollow bend 20 drives the sealing element 9 to move along the inner wall of the elongated shell 10, the elongated through groove 11, and the elongated nozzle 12, making the sealing element 9 flush with the side of the circuit board 6, thus achieving automatic adaptation to circuit boards 6 of different sizes. When the washing water is sprayed, the pressurized washing water acts on the spring 94 and enters the V-shaped sealing strip 93 through the through hole 95 on the spring 94. The spring 94 deforms under the pressure of the washing water. After deformation, the spring 94 drives the sealing part 931 of the V-shaped sealing element 9 to fit tightly against the inner wall of the elongated through groove 11 and the elongated nozzle 12 via the connecting strip 96. At the same time, the pressurized washing water acts on the sealing element 93. The sealing part 931 is again tightly fitted to the inner wall of the long through groove 11 and the long nozzle 12 on part 931, thereby improving the sealing ability of the V-shaped sealing strip 93. When the V-shaped sealing strip 93 moves (i.e. when the circuit board 6 squeezes the bent part 71 of the guide rail 7), no washing water is sprayed out at the long nozzle 12, and there is no washing water at the V-shaped sealing strip 93. At this time, the spring 94 is in an undeformed state. The spring 94 can drive the sealing part 931 to shrink slightly inward, reduce the tightness of the sealing part 931 and the inner wall of the long through groove 11 and the long nozzle 12, and reduce the friction between the sealing part 931 and the long through groove 11 and the long nozzle 12, so that the piston 91 and the V-shaped sealing strip 93 move more smoothly.

[0054] As the circuit board 6 moves along the guide rail 7, it passes the rubber collection box 81. The rubber diaphragm 84 on the piston 91 contracts towards the receiving groove 83 under the pressure of the washing water. The rubber diaphragm 84 squeezes the hydraulic oil, causing the hydraulic oil to pass through the hollow bend 20 and squeeze the piston 87 in the annular groove 85. The piston 87 then stretches the tension spring 86, which in turn moves the push rod 88 to move the pusher 89. The pusher 89 then squeezes the rubber collection box 81, causing the scraping surface 811 of the rubber collection box 81 to fit tightly against the side of the circuit board 6. The cooperation between the scraping surface 811 and the rubber scraper 82 achieves the desired effect on the side of the circuit board 6. The cleaning water is scraped off from the area behind the brush bristles 13, allowing it to enter the rubber collection box 81 and fall into the collection drawer 24 through the round hole 25. The collection drawer 24 is pulled out of the square box 23 periodically to empty the cleaning water. After emptying, the collection drawer 24 is pushed back into the square box 23 to continue collecting the cleaning water. During the movement of the circuit board 6, the rubber collection box 81 and the rubber scraper 82 are used to scrape off the cleaning water from the side of the circuit board 6, preventing the cleaning water from flowing down onto the guide rail 7, reducing the trouble of subsequent cleaning, and preventing the cleaning water from falling onto the guide rail 7 and contaminating the bottom of the circuit board 6.

[0055] When cleaning of circuit board 6 stops, there is no washing water in the long shell 10. At this time, piston 87 moves in the opposite direction along the inner wall of the annular groove 85 under the tension of spring 86, so that hydraulic oil enters the receiving groove 83 through hollow bend 20 and squeezes the rubber diaphragm 84, causing the rubber diaphragm 84 to bulge on the side of piston 91 and wait to apply pressure to the rubber collection box 81 again.

[0056] Once the circuit board 6 has been cleaned, it can be removed from the guide rail 7. When the circuit board 6 that needs to be cleaned has been cleaned, that is, when the sensing element 26 can no longer sense the circuit board 6, the water pump 2 will stop running and the long nozzle 12 will no longer spray water for cleaning the board.

[0057] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art will fully understand this invention even without these detailed descriptions.

[0058] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-efficiency intelligent regulating device for the flow rate of washing board water, comprising an air inlet pipe, a regulating valve, a water pump (2), a flow meter (3), and a water outlet pipe (27) connected together, and further comprising a water tank (1) filled with washing board water, wherein the regulating valve, the water pump (2), and the flow meter (3) are installed on the water tank (1), and the water pump (2) is used to pump the washing board water, characterized in that, Also includes: The guide rail (7) is fixed to the water tank (1) by a bracket. Several push blocks (5) are fixed on the conveyor belt of the belt conveyor (4). Several fixed blocks (15) are fixed on both sides of the belt conveyor (4). Guide rods (16) are fixed on the side of the fixed blocks (15). There are two guide rails (7), and movable blocks (18) are fixed on the opposite side of the two guide rails (7). The movable blocks (18) are movably sleeved on the guide rods (16). A tension spring (17) is fixed between the fixed blocks (15) and the movable blocks (18). The guide rods (16) are located inside the tension springs (17). The circuit board (6) is placed on the guide rail (7). The side of the circuit board (6) is in contact with the side of one of the push blocks (5). Bending rods (19) are fixed on both sides of the belt conveyor (4). Between the two bending rods (19) A long shell (10) is fixed, and a notch (21) is opened on the guide rail (7) corresponding to the long shell (10). The long shell (10) is located in the notch (21). The inner wall of the long shell (10) is circular, and a long through groove (11) is opened at the bottom of the inner wall of the long shell (10). A long nozzle (12) is fixed at the bottom of the long shell (10) corresponding to the long through groove (11). A brush bristle (13) is fixed at the bottom of the long shell (10). The end of the water outlet pipe (27) away from the water pump (2) is connected to the long shell (10). A sensing element (26) is provided on the side of the long shell (10). The water pump (2) is used to transport the washing water to the long shell (10) and spray it out from the long nozzle (12). The washing water is sprayed onto the circuit board (6). The brush bristle (13) cleans the part of the circuit board (6) with the washing water. The seal (9) is set inside the elongated shell (10) and the elongated nozzle (12). When different sizes of circuit boards (6) are placed, the guide rail (7) drives the seal (9) to move and makes the seal (9) flush with the side of the circuit board (6). The sealing element (9) includes two pistons (91) disposed inside the elongated shell (10). The pistons (91) are used for sealing inside the elongated shell (10). A connecting block (92) and a V-shaped sealing strip (93) are fixed to the bottom of the pistons (91). The V-shaped sealing strip (93) is fixed to the side of the connecting block (92). The V-shaped sealing strip (93) is used for sealing inside the elongated through groove (11) and the elongated nozzle (12). A fixing frame (22) is fixed to the side of the guide rail (7) away from the circuit board (6). A hollow bent tube (20) is fixed to the side of the fixing frame (22). The hollow bent tube (20) moves through the bent rod (19) and the elongated shell (10) in sequence and is fixedly connected to the side of the pistons (91) on the side away from the fixing frame (22). A collection component (8) is provided on the guide rail (7) at the lower position of the long shell (10). The collection component (8) includes a rubber collection box (81) embedded on the guide rail (7). A scraping surface (811) is provided on the side of the rubber collection box (81). The scraping surface (811) is attached to the side of the circuit board (6). A bottom contact surface (812) is provided on the rubber collection box (81) at the bottom position of the circuit board (6). The bottom contact surface (812) is attached to the bottom of the circuit board (6). A square groove (813) is provided on the rubber collection box (81) at the position of the bristles (13). A round hole (25) is provided at the bottom of the guide rail (7). A square box (23) is fixed at the bottom of the guide rail (7). A collection drawer (24) is slidably connected inside the square box (23). The round hole (25) is used for communication between the square box (23) and the rubber collection box (81). A rubber diaphragm (84) is fixed to the side of piston two (91). A receiving groove (83) is provided on the side of piston two (91) corresponding to the rubber diaphragm (84). The receiving groove (83) is connected to the hollow bent tube (20). An annular groove (85) is provided on the inner wall of the hollow bent tube (20). Piston one (87) is slidably connected in the annular groove (85). A tension spring one (86) is fixed on the side of piston one (87) away from the rubber collection box (81). The tension spring one (86) is away from the piston. One end of piston (87) is fixedly connected to the side of the inner wall of the annular groove (85). A push rod (88) is fixed on the side of piston (87) near the rubber collection box (81). The end of the push rod (88) away from piston (87) moves through the fixing frame (22) and is fixed with a push frame (89). The push frame (89) is attached to the side of the rubber collection box (81) away from the circuit board (6). Hydraulic oil is filled in the receiving groove (83), the hollow bend (20) and the annular groove (85).

2. The high-efficiency intelligent regulating device for washing water flow rate according to claim 1, characterized in that, Both sides of the inner wall of the V-shaped sealing strip (93) are fixed with connecting strips (96), and a spring piece (94) is fixed between the two connecting strips (96). A through hole (95) is opened on the side of the spring piece (94).

3. The high-efficiency intelligent regulating device for washing water flow rate according to claim 1, characterized in that, The V-shaped sealing strip (93) includes a sealing part (931) and a connecting part (932) connected to each other. The thickness of the connecting part (932) is less than the thickness of the sealing part (931). The connecting strip (96) is fixed to the inner wall of the sealing part (931).

4. The high-efficiency intelligent regulating device for washing water flow rate according to claim 1, characterized in that, A rubber scraper (82) is fixed on the scraping surface (811) of the rubber collection box (81). The bottom of the rubber scraper (82) is attached to the top of the circuit board (6). The side of the rubber scraper (82) near the elongated nozzle (12) is provided with an inclined surface.

5. The high-efficiency intelligent regulating device for washing water flow rate according to claim 1, characterized in that, The inner wall of the receiving groove (83) is curved on the side away from the rubber diaphragm (84).

6. The high-efficiency intelligent regulating device for washing water flow rate according to claim 1, characterized in that, Several pressure rollers (14) are rotatably connected to the guide rail (7), and the pressure rollers (14) press on the circuit board (6).

7. The high-efficiency intelligent regulating device for washing water flow rate according to claim 1, characterized in that, The guide rail (7) has a bent portion (71) at its end.

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