A manufacturing method of an automobile ADAS automatic driving auxiliary system circuit board

Abstract

The application discloses a kind of manufacturing methods of automobile ADAS automatic driving auxiliary system circuit board, it is related to circuit board technical field, the inner wall of ink pool is rotatably installed with smearing roller, the inside of ink pool is provided with shunt pipe on the side of smearing roller, high-pressure atomizing nozzle is installed on the shunt end of shunt pipe, negative pressure chamber is installed on the inner wall of ink pool, two cross pipes are installed in the inner wall of negative pressure chamber, the side of cross pipe is equipped with a plurality of suction nozzles, the stability of bubble is changed by different pressure inside and outside bubble, all passing bubbles are broken by atomizing ink wall, instead of extruding broken bubble, reduce the labor intensity of staff, the width of substrate is determined by multiple polishing disc pressure sensor, the first electromagnetic valve of corresponding position is opened, so that the width of sprayed atomizing ink is same with the width of substrate, all nozzles do not need to work, avoid the nozzles outside width to spray ink on smearing roller, cause the ink thickness of smearing area and non-smearing area to be different.

Description

Technical Field

[0001] This invention relates to the field of circuit board technology, specifically to a method for manufacturing a circuit board for an automotive ADAS (Advanced Driver Assistance System). Background Technology

[0002] ADAS refers to Advanced Driver Assistance Systems, which utilize various sensors installed in vehicles to collect environmental data inside and outside the vehicle in real time. This data is processed through technologies such as static and dynamic object identification, detection, and tracking, enabling drivers to detect potential dangers as quickly as possible, thus improving safety. This type of system requires a circuit board, and ADAS circuit boards are a type of circuit board. Circuit board manufacturing includes lamination and exposure. Lamination involves applying photosensitive ink to the copper surface of a substrate. To avoid applying ink containing air bubbles to the substrate, a pressing roller is usually placed on one side of the application roller. Ink with air bubbles is squeezed between the two rollers, breaking up the air bubbles. However, some ink adheres to the pressing roller, accumulating over time and reducing its pressing performance. This requires frequent cleaning of the pressing roller, increasing the workload and wasting time during cleaning, resulting in low lamination efficiency. Therefore, those skilled in the art have proposed a method for manufacturing a circuit board for an automotive ADAS (Advanced Driver Assistance System). Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a method for manufacturing a circuit board for an automotive ADAS (Advanced Driver Assistance System), thus solving the problems mentioned above.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a method for manufacturing a circuit board for an automotive ADAS (Advanced Driver Assistance System) autonomous driving system, comprising a chassis, an ink pool mounted on the upper surface of the chassis, an applicator roller rotatably mounted on the inner wall of the ink pool, a diverter pipe disposed on one side of the applicator roller inside the ink pool, a high-pressure atomizing nozzle facing the applicator roller mounted on each diverter pipe end, a negative pressure chamber disposed between the applicator roller and the diverter pipe on the inner wall of the ink pool, a strip groove formed on one side of the negative pressure chamber on one side of the diverter pipe, two horizontal pipes disposed vertically on the inner wall of the negative pressure chamber, a plurality of evenly distributed and inclined suction nozzles facing the applicator roller mounted on the side of each horizontal pipe, one end of the two suction nozzles extending to the outside of the ink pool and jointly mounted on a three-way pipe, a negative pressure suction pump with its input end connected to one end of the three-way pipe mounted on the side of the ink pool below the three-way pipe, and an output pipe extending into the ink pool mounted on the output end of the negative pressure suction pump.

[0005] As a further technical solution of the present invention, an L-shaped frame is installed on the upper surface of the chassis on one side of the ink pool, a turbine housing is fixedly installed on the upper surface of the L-shaped frame, a shaft is rotatably installed on the inner top surface of the turbine housing, a turbine blade is installed inside the turbine housing on the surface of the shaft, and one end of the shaft extends to the outside of the turbine housing and is equipped with a first bevel tooth.

[0006] As a further technical solution of the present invention, the inlet of the turbine housing is equipped with an inlet pipe extending into the ink pool, the end of the inlet pipe extending into the ink pool is equipped with an ink pump, the outlet of the turbine housing is equipped with an outlet pipe communicating with a diverter pipe, the other end of the diverter pipe is equipped with a return pipe extending back into the ink pool, and a second solenoid valve is provided on the return pipe.

[0007] As a further technical solution of the present invention, L-shaped plates are installed on both sides of the ink pool, and a rotating rod is rotatably installed between the two L-shaped plates on one side of the ink pool. The end of the rotating rod near the first bevel tooth passes through the L-shaped plate and is equipped with a second bevel tooth that meshes with the first bevel tooth. A polishing disc is installed on one side of each high-pressure atomizing nozzle on the surface of the rotating rod. Two pressure sensors are embedded in each polishing disc. A first solenoid valve is installed at each branching end of the branch pipe.

[0008] As a further technical solution of the present invention, a movable seat is provided directly above the ink pool, and a movable groove is provided on the lower surface of the movable seat. A motor is installed at one end of the movable seat, and the driving end of the motor extends into the movable groove and is equipped with a screw whose other end is rotatably connected to the inner wall of the movable groove. A threaded seat adapted to the movable groove is provided on the screw. A horizontal plate is installed on the lower surface of the threaded seat, and two electric push rods are correspondingly installed on the lower surface of the horizontal plate.

[0009] As a further technical solution of the present invention, each of the electric push rods is equipped with a mounting base at its lower end. A self-locking motor is installed on the side of one of the mounting bases. The drive end of the self-locking motor passes through the mounting base and is equipped with a mounting plate whose other end is rotatably connected to another mounting base. A suction cup is installed at the center of the lower surface of the mounting plate. A negative pressure generator is installed on the upper surface of the mounting plate above the suction cup. A connecting pipe communicating with the suction cup is installed at the input end of the negative pressure generator.

[0010] As a further technical solution of the present invention, a guide plate is installed on the rear surface of the ink tank, two recycling platforms are installed on one side of the guide plate on the upper surface of the chassis, a placement platform is installed on one side of all the grinding discs on the upper surface of the chassis, and a controller is installed on the other side of the ink tank.

[0011] Beneficial effects

[0012] This invention provides a method for manufacturing a circuit board for an automotive ADAS (Advanced Driver Assistance System). Compared with the prior art, it has the following advantages:

[0013] 1. A method for manufacturing a circuit board for an automotive ADAS (Advanced Driver Assistance System) autonomous driving system, which utilizes the different pressures inside and outside air bubbles to change the stability of the bubbles. Atomized ink is used to easily break all the air bubbles passing through the atomized ink wall. Then, each suction nozzle picks up the broken ink particles, preventing the ink particles from falling onto the ink on the coating roller, thus avoiding unevenness on the substrate and ultimately resulting in uneven ink application. This method also achieves the purpose of cleaning air bubbles, replacing the need for squeezing and breaking air bubbles. It eliminates the need for frequent cleaning of the ink on the squeezing roller, reducing the workload of workers. Furthermore, it allows for continuous operation without wasting time, increasing coating efficiency.

[0014] 2. A method for manufacturing a circuit board for an automotive ADAS (Advanced Driver Assistance System) autonomous driving system, wherein the width of the substrate is determined by pressure sensors on multiple grinding discs, and then the first solenoid valve at the corresponding position is controlled to open, so that the width of the sprayed atomized ink is the same as the width of the substrate. It is not necessary for all high-pressure atomizing nozzles to work at the same time, thus avoiding the situation where the ink thickness of the coated area and the uncoated area is different due to the high-pressure atomizing nozzles outside the width spraying ink onto the coating roller. It also reduces the amount of sprayed ink that cannot return to the ink pool, thus reducing ink waste. The position of the substrate can also be determined according to the force of each pressure sensor, and then the corresponding high-pressure atomizing nozzle is opened, so that the substrate can be coated normally even if it is misaligned. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a manufacturing method for a circuit board of an automotive ADAS (Advanced Driver Assistance System).

[0016] Figure 2 This is a working state diagram of a manufacturing method for a circuit board of an automotive ADAS (Advanced Driver Assistance System).

[0017] Figure 3 A cross-sectional view of the base surface assembly of a method for manufacturing a circuit board for an automotive ADAS (Advanced Driver Assistance System) autonomous driving system.

[0018] Figure 4 This is a structural diagram of the main structure of a manufacturing method for a circuit board of an automotive ADAS (Advanced Driver Assistance System).

[0019] Figure 5 A schematic diagram of the negative pressure chamber structure for a method of manufacturing a circuit board for an automotive ADAS (Advanced Driver Assistance System) autonomous driving system.

[0020] Figure 6A schematic diagram of the transport component structure in a method for manufacturing a circuit board for an automotive ADAS (Advanced Driver Assistance System) autonomous driving system.

[0021] Figure 7 This is a schematic diagram of the internal structure of a turbine housing, illustrating a method for manufacturing a circuit board for an automotive ADAS (Advanced Driver Assistance System) autonomous driving assistance system.

[0022] In the diagram: 1. Chassis; 2. Ink tank; 3. Applying roller; 4. Diverter pipe; 5. First solenoid valve; 6. High-pressure atomizing nozzle; 7. Negative pressure chamber; 8. Horizontal pipe; 9. Suction nozzle; 10. T-connector; 11. Negative pressure oil suction pump; 12. Output pipe; 13. L-shaped frame; 14. Turbine housing; 15. Inlet pipe; 16. Ink pump; 17. Outlet pipe; 18. Shaft; 19. Turbine blade; 20. First bevel gear; 21. L-shaped plate; 22. Rotating rod; 23. 24. Second bevel tooth; 25. Grinding disc; 26. Pressure sensor; 27. Placement table; 28. Recovery table; 29. ​​Return pipe; 20. Second solenoid valve; 31. Moving seat; 32. Motor; 33. Screw; 34. Threaded seat; 35. Horizontal plate; 36. Electric push rod; 37. Mounting base; 38. Self-locking motor; 39. Mounting plate; 40. Suction cup; 41. Negative pressure generator; 42. Connecting pipe; 43. Controller; 44. Guide plate; 45. Strip groove. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-7This invention provides a manufacturing method for a circuit board of an automotive ADAS (Advanced Driver Assistance System) autonomous driving system: A manufacturing method for a circuit board of an automotive ADAS autonomous driving assistance system includes a chassis 1, an ink pool 2 mounted on the upper surface of the chassis 1, an applicator roller 3 rotatably mounted on the inner wall of the ink pool 2, a diversion pipe 4 disposed inside the ink pool 2 on one side of the applicator roller 3, a high-pressure atomizing nozzle 6 mounted at each diversion end of the diversion pipe 4 facing the applicator roller 3, and a negative pressure chamber 7 installed on the inner wall of the ink pool 2 between the applicator roller 3 and the diversion pipe 4. A strip groove 44 is provided on one side of the diversion pipe 4. Two horizontal pipes 8 are installed on the inner wall of the negative pressure chamber 7, one above the other. Several evenly distributed suction nozzles 9 are installed on the side of each horizontal pipe 8, inclined towards the coating roller 3. One end of the two suction nozzles 9 extends to the outside of the ink pool 2 and is connected to a three-way pipe 10. A negative pressure suction pump 11 with its input end connected to one end of the three-way pipe 10 is installed on the side of the ink pool 2 below the three-way pipe 10. The output end of the negative pressure suction pump 11 is connected to an output pipe 12 extending into the ink pool 2. In use, the moving circuit After the substrate contacts the coating roller 3, it rotates. The rotating coating roller 3 picks up the photosensitive ink from the ink pool 2. At the same time, the photosensitive ink in the diversion tube 4 is sprayed out by each high-pressure atomizing nozzle 6, passing through the strip groove 44 and spraying onto the ink surface on the rotating coating roller 3. Simultaneously, the operating negative pressure suction pump 11 generates negative pressure in the negative pressure chamber 7 through each suction nozzle 9. If there are air bubbles in the ink adhering to the coating roller 3, they are atomized by the pressure difference between the inside and outside of the air bubbles around the negative pressure chamber 7. At the same time, the high-pressure atomizing nozzle 6 sprays atomized ink onto the coating roller 3, forming an atomized oil. The ink wall, with its varying pressures altering the stability of air bubbles, is then easily broken up by atomized ink. Each nozzle 9 then sucks up the broken ink particles, which are then returned to the ink pool 2 via the output pipe 12. This prevents ink particles from falling onto the ink on the coating roller 3, causing unevenness and ultimately resulting in an uneven finish on the substrate. It also effectively removes air bubbles, replacing the need for frequent cleaning of the ink on the extrusion roller, thus reducing the workload for workers.

[0025] An L-shaped frame 13 is mounted on one side of the ink tank 2 on the upper surface of the chassis 1. A turbine housing 14 is fixedly mounted on the upper surface of the L-shaped frame 13. A shaft 18 is rotatably mounted on the inner top surface of the turbine housing 14. A turbine blade 19 is mounted on the surface of the shaft 18 inside the turbine housing 14. One end of the shaft 18 extends to the outside of the turbine housing 14 and is equipped with a first bevel tooth 20. An inlet pipe 15 extending into the ink tank 2 is installed at the inlet of the turbine housing 14. An ink pump 16 is installed at the end of the inlet pipe 15 extending into the ink tank 2. An outlet pipe 17 connected to a diversion pipe 4 is installed at the outlet of the turbine housing 14. A return pipe 28 extending back into the ink tank 2 is installed at the other end of the diversion pipe 4. A second solenoid valve 29 is installed on the return pipe 28. L-shaped frames are mounted on both sides of the ink tank 2. A rotating rod 22 is rotatably mounted between two L-shaped plates 21 on one side of the ink tank 2. The end of the rotating rod 22 near the first conical tooth 20 passes through the L-shaped plate 21 and is fitted with a second conical tooth 23 that meshes with the first conical tooth 20. A polishing disc 24 is mounted on one side of each high-pressure atomizing nozzle 6 on the surface of the rotating rod 22. Each polishing disc 24 has two pressure sensors 25 embedded in it. A first solenoid valve 5 is installed at each branch end of the branch pipe 4. It should be noted that the two pressure sensors 25 on each polishing disc 24 correspond to the first solenoid valve 5 on the branch end opposite to them on its side. In use, the running ink pump 16 draws the ink from the ink tank 2 into the inlet pipe 15, and then the ink enters the turbine housing 14. The ink enters the outlet pipe 17 and then the diversion pipe 4. When the first solenoid valve 5 is open and the second solenoid valve 29 is closed, the ink is sprayed out from each high-pressure atomizing nozzle 6. When the first solenoid valve 5 is closed and the second solenoid valve 29 is open, the ink passes through the diversion pipe 4 and returns to the ink pool 2 through the return pipe 28. The ink flowing through the turbine housing 14 drives the turbine blades 19 to rotate, which in turn drives the second bevel gear 23 to rotate through the first bevel gear 20. This, in turn, drives each polishing disc 24 to rotate through the rotating rod 22. When the substrate passes over the polishing disc 24, the rotating polishing disc 24 polishes the copper foil on the lower surface of the substrate, enhancing the adhesion of the ink. If the substrate contacts the polishing disc 24, it will apply pressure to the pressure sensor 25 on it. Each polishing disc... When the pressure sensor on the polishing disc 24 receives pressure, it sends a signal to the controller 42. Upon receiving the signal, the controller 42 controls the corresponding first solenoid valve 5 to open during subsequent coating. The width of the substrate is determined by the pressure sensors 25 on multiple polishing discs 24, and then the corresponding first solenoid valve 5 is opened to ensure that the width of the sprayed atomized ink is the same as the width of the substrate. This avoids the need for all high-pressure atomizing nozzles 6 to operate simultaneously, preventing uneven ink thickness between coated and uncoated areas caused by high-pressure atomizing nozzles 6 spraying ink onto the coating roller 3 outside the designated width. It also reduces the amount of sprayed ink that cannot return to the ink pool 2, thus reducing ink waste. The position of the substrate can also be determined based on the pressure applied to each pressure sensor 25.Then, the corresponding high-pressure atomizing nozzle 6 is turned on, allowing for normal coating even if the substrate is misaligned.

[0026] A movable base 30 is positioned directly above the ink tank 2. A movable groove is formed on the lower surface of the movable base 30. A motor 31 is mounted on one end of the movable base 30. The drive end of the motor 31 extends into the movable groove and is fitted with a screw 32, the other end of which is rotatably connected to the inner wall of the movable groove. A threaded seat 33, adapted to the movable groove, is provided on the screw 32. A horizontal plate 34 is mounted on the lower surface of the threaded seat 33. Two electric push rods 35 are correspondingly mounted on the lower surface of the horizontal plate 34. A mounting base 36 is mounted on the lower end of each electric push rod 35. A self-locking motor 37 is mounted on the side of one of the mounting bases 36. A drive end passes through the mounting base 36 and is fitted with a mounting plate 38, the other end of which is rotatably connected to another mounting base 36. A suction cup 39 is mounted at the center of the lower surface of the mounting plate 38. A negative pressure generator 40 is mounted on the upper surface of the mounting plate 38 above the suction cup 39. A connecting pipe 41 communicating with the suction cup 39 is installed at the input end of the negative pressure generator 40. A guide plate 43 is mounted on the rear surface of the ink tank 2. Two recycling platforms 27 are mounted on one side of the guide plate 43 on the upper surface of the chassis 1. A placement platform 26 is mounted on one side of all the grinding discs 24 on the upper surface of the chassis 1. A control device is mounted on the other side of the ink tank 2. In use, the substrate is placed on the placement stage 26. The controller 42 controls the two electric push rods 35 to extend so that the suction cup 39 contacts the upper surface of the substrate. Then, the negative pressure generator 40 is controlled to run, creating a negative pressure inside the suction cup 39, which sucks the substrate onto the suction cup 39. The running motor 31 drives the screw 32 to rotate, which drives the threaded seat 33 to move, thereby moving the substrate. When the substrate moves to directly above the guide plate 43 after being coated, the controller 42 controls the electric push rods 35 to shorten. At the same time, the controller's self-locking motor 37 drives the mounting plate 38 to rotate 180 degrees, thereby rotating the substrate 180 degrees so that the coated side faces the substrate. Moving upwards, motor 31 continues to operate, driving the substrate forward until it reaches the end of the moving seat 30. Then, the controller controls all the electric push rods 35 to extend, driving the substrate down and placing it on the two recycling tables 27. The negative pressure generator 40 is turned off to release the substrate from its fixation. The operator removes the coated substrate. Then, the electric push rods 35 shorten, and at the same time, the self-locking motor 37 drives the mounting plate 38 to rotate 180 degrees. The controller 42 controls motor 31 to drive screw 32 to reverse, driving the suction cup 39 back above the placement table 26 through the above operation. Then, the above operation is repeated to achieve continuous operation.

[0027] The working principle of this invention is as follows: The running ink pump 16 draws the ink in the ink pool 2 into the inlet pipe 15, then the ink enters the turbine housing 14, and then enters the outlet pipe 17 and the diversion pipe 4 from its outlet. Since the first solenoid valve 5 is closed and the second solenoid valve 29 is open, the ink passes through the diversion pipe 4 and returns to the ink pool 2 through the return pipe 28. The ink flowing through the turbine housing 14 will drive the turbine blades 19 to rotate, which in turn drives the second bevel tooth 23 to rotate through the first bevel tooth 20, and drives each grinding disc 24 to rotate through the rotating rod 22.

[0028] In use, the substrate is placed on the placement stage 26. The controller 42 controls the two electric push rods 35 to extend, allowing the suction cup 39 to contact the upper surface of the substrate. Then, the negative pressure generator 40 is controlled to operate, creating negative pressure inside the suction cup 39, which sucks the substrate onto the suction cup 39. The running motor 31 drives the screw 32 to rotate, driving the threaded seat 33 to move and thus moving the substrate forward. When the substrate passes over the polishing disc 24, the rotating polishing discs 24 polish the copper foil on the lower surface of the substrate. If the substrate contacts the polishing disc 24, it will apply pressure to the pressure sensor 25 on it. After receiving pressure, the pressure sensor on each polishing disc 24 sends a signal to the controller 42. The controller 42 receives the signal, and when the substrate reaches the coating area, it controls the corresponding first solenoid valve 5 to open. When the two solenoid valves 29 are closed, the atomized ink wall sprayed by multiple high-pressure atomizing nozzles 6 is the same width as the substrate. After the moving circuit board contacts the coating roller 3, it drives it to rotate. The rotating coating roller 3 sticks to the photosensitive ink in the ink pool 2. The atomized ink wall sprayed by the corresponding high-pressure atomizing nozzles 6 passes through the strip groove 44 and sprays onto the ink surface on the rotating coating roller 3. The running negative pressure suction pump 11 generates negative pressure in the negative pressure chamber 7 through each suction nozzle 9. If there are air bubbles in the ink sticking to the coating roller 3, the stability of the air bubbles is changed by the different pressure inside and outside the air bubbles around the negative pressure chamber 7. Then, the atomized ink easily breaks all the air bubbles that have passed through the atomized ink wall. After that, each suction nozzle 9 sucks away the broken ink particles and then returns them to the ink pool 2 through the output pipe 12.

[0029] When the substrate, after being coated, moves to the top of the guide plate 43, the controller 42 controls the electric push rod 35 to shorten while the controller's self-locking motor 37 drives the mounting plate 38 to rotate 180 degrees, thereby causing the substrate to rotate 180 degrees so that the coated surface faces upward. Then, the motor 31 continues to run, driving the substrate forward through the above operation until it reaches the end of the moving seat 30. Then, the controller controls all the electric push rods 35 to extend, driving the substrate down so that it lands on the two collection tables 27. The negative pressure generator 40 is turned off to release the fixation of the substrate. The operator removes the coated substrate. Then, the electric push rod 35 shortens, and the self-locking motor 37 drives the mounting plate 38 to rotate 180 degrees. The controller 42 controls the motor 31 to drive the screw 32 to reverse, driving the suction cup 39 back above the placement table 26 through the above operation. Then, the above operation is repeated to achieve continuous operation.

Claims

1. A manufacturing apparatus for a circuit board of an automotive ADAS (Advanced Driver Assistance System), comprising a chassis (1), characterized in that, An ink tank (2) is mounted on the upper surface of the chassis (1). An applicator roller (3) is rotatably mounted on the inner wall of the ink tank (2). A diversion pipe (4) is provided inside the ink tank (2) on one side of the applicator roller (3). A high-pressure atomizing nozzle (6) facing the applicator roller (3) is installed at each diversion end of the diversion pipe (4). A negative pressure chamber (7) is installed on the inner wall of the ink tank (2) between the applicator roller (3) and the diversion pipe (4). A strip groove (44) is opened on the side of the negative pressure chamber (7) on one side of the diversion pipe (4). The inner wall of the negative pressure chamber (7) Two horizontal tubes (8) are installed vertically and vertically. Each horizontal tube (8) has several evenly distributed suction nozzles (9) on its side that are inclined toward the coating roller (3). One end of each suction nozzle (9) extends to the outside of the ink pool (2) and is connected to a three-way pipe (10). A negative pressure suction pump (11) with its input end connected to one end of the three-way pipe (10) is installed on the side of the ink pool (2) below the three-way pipe (10). The output end of the negative pressure suction pump (11) is connected to an output pipe (12) extending into the ink pool (2). The high-pressure atomizing nozzle is directly opposite the negative pressure chamber.

2. The manufacturing apparatus for a circuit board of an automotive ADAS (Advanced Driver Assistance System) according to claim 1, characterized in that, An L-shaped frame (13) is installed on the upper surface of the chassis (1) on one side of the ink pool (2). A turbine housing (14) is fixedly installed on the upper surface of the L-shaped frame (13). A shaft (18) is rotatably installed on the inner top surface of the turbine housing (14). A turbine blade (19) is installed inside the turbine housing (14) on the surface of the shaft (18). One end of the shaft (18) extends to the outside of the turbine housing (14) and is equipped with a first bevel tooth (20).

3. The manufacturing apparatus for a circuit board of an automotive ADAS (Advanced Driver Assistance System) according to claim 2, characterized in that, The turbine housing (14) is equipped with an inlet pipe (15) extending into the ink pool (2). An ink pump (16) is installed at the end of the inlet pipe (15) extending into the ink pool (2). The turbine housing (14) is equipped with an outlet pipe (17) communicating with the diversion pipe (4). The other end of the diversion pipe (4) is equipped with a return pipe (28) extending back into the ink pool (2). A second solenoid valve (29) is provided on the return pipe (28).

4. The manufacturing apparatus for a circuit board of an automotive ADAS (Advanced Driver Assistance System) according to claim 2, characterized in that, L-shaped plates (21) are installed on both sides of the ink pool (2). A rotating rod (22) is rotatably installed between the two L-shaped plates (21) on one side of the ink pool (2). The end of the rotating rod (22) near the first bevel tooth (20) passes through the L-shaped plate (21) and is equipped with a second bevel tooth (23) that meshes with the first bevel tooth (20). A polishing disc (24) is installed on one side of each high-pressure atomizing nozzle (6) on the surface of the rotating rod (22). Two pressure sensors (25) are embedded in each polishing disc (24). A first solenoid valve (5) is installed at each branch end of the branch pipe (4).

5. The manufacturing apparatus for a circuit board of an automotive ADAS (Advanced Driver Assistance System) according to claim 1, characterized in that, A movable seat (30) is provided directly above the ink pool (2). A movable groove is provided on the lower surface of the movable seat (30). A motor (31) is installed at one end of the movable seat (30). The driving end of the motor (31) extends into the movable groove and is equipped with a screw (32) whose other end is rotatably connected to the inner wall of the movable groove. A threaded seat (33) that is adapted to the movable groove is provided on the screw (32). A horizontal plate (34) is installed on the lower surface of the threaded seat (33). Two electric push rods (35) are correspondingly installed on the lower surface of the horizontal plate (34).

6. The manufacturing apparatus for a circuit board of an automotive ADAS (Advanced Driver Assistance System) according to claim 5, characterized in that, Each of the electric push rods (35) has a mounting base (36) installed at its lower end. A self-locking motor (37) is installed on the side of one of the mounting bases (36). The drive end of the self-locking motor (37) passes through the mounting base (36) and is mounted with a mounting plate (38) whose other end is rotatably connected to another mounting base (36). A suction cup (39) is installed at the center of the lower surface of the mounting plate (38). A negative pressure generator (40) is installed on the upper surface of the mounting plate (38) above the suction cup (39). A connecting pipe (41) communicating with the suction cup (39) is installed at the input end of the negative pressure generator (40).

7. The manufacturing apparatus for a circuit board of an automotive ADAS (Advanced Driver Assistance System) according to claim 1, characterized in that, A guide plate (43) is installed on the rear surface of the ink tank (2). Two recycling stations (27) are installed on one side of the guide plate (43) on the upper surface of the chassis (1). A placement platform (26) is installed on one side of all the grinding discs (24) on the upper surface of the chassis (1). A controller (42) is installed on the other side of the ink tank (2).

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