Three-in-one electroplating device and process

Abstract

The three-in-one electroplating device comprises a frame, symmetrically-arranged liquid medicine tanks are arranged in the frame, U-shaped steel is arranged between the liquid medicine tanks, symmetrically-arranged gear discs are rotationally connected to the two ends of the upper portion in the frame and the two ends of the upper portion of the U-shaped steel, and chains are engaged between the corresponding gear discs; a plurality of uniformly arranged stand columns are connected between the chains, and the sides, away from the middle of the frame, of the stand columns are slidably connected with suspension arms; the movable platform and the platform fixing track ascend, the platform fixing track is matched with a second roller, so that the circuit board which does not correspond to the handle removing groove body ascends, the circuit board which corresponds to the handle removing groove body continues to stay in the liquid medicine groove to react with the liquid medicine, the ascending circuit board reaches the next processing stage, and the circuit board which stays in the liquid medicine groove transversely moves in the liquid medicine groove; and after the circuit board moves, the oil cylinder drives the circuit board to descend, so that the circuit board descends into the liquid medicine tank for the next treatment stage, and the circuit board can fully react with the liquid medicine.

Description

Technical Field

[0001] This invention belongs to the field of circuit board manufacturing technology, specifically relating to a three-in-one electroplating device and process. Background Technology

[0002] A circuit board, also known as a printed circuit board, is the core interconnection carrier of electronic devices. It uses an insulating substrate as a base and forms conductive lines on the surface through processes such as etching. It can fix and connect electronic components such as chips, capacitors, and resistors, realize circuit conduction and signal transmission between various components, and also integrate circuit layout, reduce equipment size, and improve the stability and integration of electronic systems.

[0003] Electroplating is a key process in circuit board manufacturing. It utilizes electrochemical principles to deposit one or more layers of metal on specific areas of the circuit board. This process can thicken the conductive lines on the substrate to enhance conductivity and current carrying capacity, form a protective layer or solderable layer in areas such as solder pads, and enable hole metallization to connect lines on different layers of the circuit board. This improves the electrical performance, corrosion resistance, and soldering reliability of the circuit board, ensuring stable connection of electronic components and long-term operation of equipment.

[0004] During the manufacturing process of circuit boards, drilling is usually required to achieve circuit conductivity and package components. Hole metallization is one of the most important processes in PCB manufacturing technology. To achieve hole metallization, chemical copper plating (PTH process) and polymer conductive film are usually used to make the resin substrate conductive. However, the conductive layer achieved by these methods is not sufficient to meet the requirements for use, so copper electroplating is also required to thicken the conductive layer.

[0005] In the chemical copper plating process of the PCB industry, most manufacturers use traditional gantry-type equipment for production. This type of equipment requires significant manpower for operation and control, consumes substantial resources to maintain stability, and poses significant safety hazards. This impacts production efficiency and puts considerable pressure on on-site safety management. To address the numerous drawbacks of gantry-type equipment, horizontal copper plating technology has been adopted. This technology effectively overcomes the problems of high manpower and material consumption and high safety risks associated with traditional equipment, optimizing the production mode of the chemical copper plating process. However, horizontal copper plating equipment also has new technical shortcomings: the rollers used for transporting circuit boards make multiple contacts with the board surface, easily leaving obvious roller marks. This problem not only directly affects the appearance of the circuit board but also interferes with the smooth exchange of chemicals within the holes, creating potential quality risks for subsequent critical processes such as metallization, and adversely affecting the final product quality. Summary of the Invention

[0006] The purpose of this invention is to provide a three-in-one electroplating device and process, which solves the problems of poor continuity and low product quality in the production of circuit boards in the prior art.

[0007] The objective of this invention can be achieved through the following technical solutions: A three-in-one electroplating device includes a frame containing symmetrically arranged chemical tanks. Each chemical tank comprises three processes: desmearing, chemical copper plating, and copper plating, making the chemical tanks a unified three-in-one unit. By integrating the desmearing, chemical copper plating, and copper plating processes, it forms a fully automated production line equipment, enabling continuous and non-contact processing of circuit boards. U-shaped steel is installed between the chemical tanks. Symmetrically arranged gear disks are rotatably connected to both ends of the frame and the upper ends of the U-shaped steel, with corresponding gear disks meshing with each other. There is a chain, and multiple evenly arranged columns are connected between the chains. The columns move smoothly through the cooperation of two sets of gear discs and the chain. A boom is slidably connected to the side of the column away from the middle of the frame. The end of the boom near the column is connected to a first roller, which fits in contact with the column. Symmetrically arranged hanging assemblies are installed below the end of the boom away from the column, corresponding to the position of the medicine tank. The hanging assemblies clamp and fix circuit boards of different sizes through the hanging assemblies. During the movement of the column, it cooperates with the boom to drive the hanging assemblies and circuit boards to move.

[0008] Preferably, the process flow sequence for removing adhesive residue is: loosening → water washing → water washing → potassium permanganate adhesive residue removal → water washing → water washing → water washing → pre-neutralization → water washing → neutralization → water washing → water washing; the process flow sequence for chemical copper plating is: hole preparation → hot water washing → water washing → hole preparation → water washing → water washing → micro-etching → water washing → water washing → pre-immersion → activation → water washing → water washing → acceleration → water washing → water washing → copper plating → water washing → hot water washing → water washing; the process flow sequence for copper plating is: pre-immersion → flash plating → water washing → water washing; the chemical solution tank is equipped with a stripping tank, and the stripping tank is the chemical solution tank section corresponding to the loosening, potassium permanganate adhesive residue removal, hole preparation, micro-etching, activation, acceleration and copper plating processes. After the hanger assembly enters the stripping tank, it will not move up or down, so that the circuit board stays in the chemical solution tank until the end of the last cycle before moving up to enter the next processing stage.

[0009] Preferably, the hanging assembly includes a hanging square tube, with multiple evenly arranged first clamps below the hanging square tube. Both ends of the hanging square tube are connected to side fixing plates. Below the hanging square tube, corresponding to the positions of the side fixing plates, are two sets of symmetrically arranged telescopic rods. Adjacent telescopic rods are arranged in a centrally symmetrical manner. The ends of the telescopic rods closest to the side fixing plates are connected to the side fixing plates. Below the hanging square tube, corresponding to the positions of the telescopic rods, are reinforced steel plates. The first clamps clamp and fix the upper part of the circuit board, the reinforced steel plates clamp and fix the telescopic rods, and the side fixing plates adjust the position of the telescopic rods.

[0010] Preferably, a sleeve is connected to the side of the side fixing plate away from the reinforcing steel plate. A lifting rod is slidably connected inside the sleeve. A second clamp is connected to the lower end of the lifting rod. A third clamp is connected to the sleeve at the position corresponding to the lifting rod. Teeth are opened on the upper part of the lifting rod at the position corresponding to the third clamp. The end of the third clamp engages with the teeth. The second clamp clamps and fixes the lower part of the circuit board. The height of the second clamp is adjusted by the lifting rod. The third clamp cooperates with the teeth to fix the lifting rod.

[0011] Preferably, the mounting bracket is made of SUS316 material, the lifting rod is made of TC4 material, and the side fixing plate is made of high-polymer PE board.

[0012] Preferably, both ends of the hanging support square tube are rotatably connected to symmetrically arranged pulleys, and the upper part of the medicine tank is connected to symmetrically arranged hanging sliding tracks corresponding to the pulley positions.

[0013] Preferably, a movable platform is provided inside the frame corresponding to the position above the U-shaped steel, and a hydraulic cylinder is provided in the middle of the frame corresponding to the position of the movable platform. The output end of the hydraulic cylinder is connected to a connecting plate. Guide wheels are symmetrically arranged and rotatably connected to the positions above the frame and inside the U-shaped steel corresponding to the connecting plate. A steel wire rope is wound around the middle of the guide wheel, and the two ends of the steel wire rope are connected to the movable platform and the connecting plate respectively. The hydraulic cylinder drives the connecting plate to rise or fall, and in conjunction with the guide wheels and steel wire rope, the movable platform can rise or fall.

[0014] Preferably, the end of the boom near the movable platform is connected to a second roller, and the side of the movable platform away from the handle removal groove is connected to an L-shaped platform fixing rail, and the platform fixing rail corresponds to the second roller. With the cooperation of the platform fixing rail and the second roller, the movable platform drives the boom, hanging assembly and circuit board that do not correspond to the handle removal groove to rise, while the circuit board that corresponds to the handle removal groove remains in the medicine tank.

[0015] Preferably, three sets of symmetrically arranged support rods are provided above the medicine tank at the position corresponding to the long side. Multiple evenly arranged V-shaped seats are connected to the upper surface of the support rods. An outer frame is provided outside the medicine tank at the position corresponding to the support rods. A bearing seat is connected to the upper surface of the outer frame. A rotating shaft is connected between adjacent bearing seats. A disc is eccentrically connected to both ends of the rotating shaft near the support rod. A movable plate is connected to the support rod at the position corresponding to the disc. A symmetrically arranged limiting plate is connected to the side of the movable plate near the disc. The disc is located between the limiting plates and fits against the limiting plates.

[0016] This invention also provides a three-in-one electroplating process, comprising the following steps: S1: Adjust the height and position of the second clamp according to the size of the circuit board. First, use a cylinder to push the third clamp to make the lifting rod lose its fixation. Adjust the height of the lifting rod and the second clamp. Then, use a cylinder to push the reinforcing steel plate to make the telescopic rod lose its clamping force. Finally, use a cylinder to adjust the position of the second clamp.

[0017] S2: The chain is driven to rotate by the rotation of the gear disc. During the rotation of the chain, the column, boom, hanger assembly and circuit board are moved. The gear disc will run intermittently according to the processing to allow the circuit board to fully react with the chemical solution or to process it.

[0018] S3: When the gear disk stops running and the fixture assembly corresponds to the first plate table, the first clamp and the second clamp are pushed by the cylinder to open the first clamp and the second clamp. The circuit board is placed between the first clamp and the second clamp by the robot arm, so that the first clamp and the second clamp hold and fix the upper and lower surfaces of the circuit board.

[0019] S4: When the gear disc stops running, the connecting plate is driven to descend by the hydraulic cylinder, which pulls the steel wire rope. With the cooperation of two sets of guide wheels, the movable platform can rise smoothly. The rising of the movable platform, together with the platform fixed track and the second roller, causes the boom that does not correspond to the handle release groove to drive the hanging assembly and circuit board to rise. The circuit board that corresponds to the handle release groove remains in the medicine tank to react with the medicine.

[0020] S5: The rising boom, in conjunction with the gear and chain, moves the circuit board to the next processing stage. The circuit board remaining in the chemical tank moves laterally within the tank. After the circuit board has moved, the hydraulic cylinder drives the connecting plate to rise. The connecting plate, in conjunction with two sets of guide wheels, allows the steel wire rope to drive the movable platform and the platform's fixed track to descend smoothly, allowing the circuit board to enter the chemical tank for the next processing stage.

[0021] S6: After the circuit board descends into the medicine tank and the hanging support square tube falls into the V-shaped seat, the drive motor drives the rotating shaft to rotate, causing the disc to rotate around the rotating shaft. During the rotation, the disc pushes the limit plate, causing the circuit board to move back and forth in the medicine tank.

[0022] S7: When the gear disk stops running and the hanging assembly corresponds to the second plate table, the circuit board is processed. The circuit board is grabbed by the robot arm, and then the first clamp and the second clamp are pushed by the cylinder to open the first clamp and the second clamp, so that the circuit board is no longer clamped and fixed, and the processed circuit board can be removed.

[0023] The beneficial effects of this invention are: 1) By integrating descaling, chemical copper plating and copper plating processes, a fully automated production line equipment is formed, realizing continuous hole metallization process and achieving contactless operation in the circuit board production process. This solves the drawbacks of traditional gantry and horizontal equipment, meets product process requirements, reduces quality risks, and the integrated design can optimize chemical recycling, reduce waste liquid treatment volume, and meet environmental protection requirements.

[0024] 2) The hydraulic cylinder drives the connecting plate to descend, pulling the steel wire rope, causing the movable platform and the platform fixed track to rise. The platform fixed track, in conjunction with the second roller, causes the circuit board that does not correspond to the handle removal groove to rise, while the circuit board that corresponds to the handle removal groove remains in the chemical tank to react with the chemical solution. The risen circuit board proceeds to the next processing stage, while the circuit board that remains in the chemical tank moves laterally within the chemical tank. After the circuit board moves, the hydraulic cylinder drives the circuit board to descend, causing it to enter the chemical tank for the next processing stage, allowing the circuit board to fully react with the chemical solution.

[0025] 3) By setting up a handle removal trough, the hanging assembly will not move up or down after entering the handle removal trough. This allows the circuit board to stay in the chemical tank until the end of the last cycle before rising and entering the next processing stage. This design allows the circuit board sufficient processing time. Specifically, based on a one-minute transmission cycle design, the rising, falling, and lateral movement take thirty seconds. The circuit board stays in the chemical tank for thirty seconds. The circuit board does not move up in the handle removal trough but only moves within the chemical tank. This increases the time the circuit board stays in the chemical tank to one minute, giving the circuit board ample time to react.

[0026] 4) After the hanging support square tube falls into the V-shaped seat, the drive motor drives the rotating shaft to rotate, causing the disc to rotate around the rotating shaft. During the rotation of the disc, the disc pushes the limiting plate, causing the limiting plate, the movable plate, the support rod, the V-shaped seat and the hanging support square tube to move back and forth. This allows the circuit board to move back and forth in the medicine tank. During the back and forth movement of the circuit board, the surface of the board can be treated more evenly by the medicine in the medicine tank, improving the quality of the product. Attached Figure Description

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] Figure 1 This is a top view of the present invention; Figure 2 This is a partial top view of the present invention; Figure 3 This is a front view of the present invention; Figure 4 This is a partial front view of the present invention; Figure 5 This is a front view of the chain section in this invention; Figure 6 This is a partial front view of the chain section in this invention; Figure 7 This is a front view of the present invention; Figure 8 This is a perspective view of the square tube portion of the hanger in this invention; Figure 9 This is a side view of the herbal medicine trough in this invention; Figure 10 This is a side view of the hydraulic cylinder in this invention; Figure 11 yes Figure 10 A magnified view of a section at point A in the middle; Figure 12 This is a process flow diagram of the glue residue removal part in this invention; Figure 13 This is a process flow diagram of the chemical copper process in this invention; Figure 14 This is a process flow diagram of the copper plating part in this invention; Figure 15 This is a perspective view of the outer frame in this invention; Figure 16 This is a perspective view of the disk in this invention; Figure 17 This is a front view of the support rod in this invention; Figure 18 This is a top view of the support rod in this invention.

[0029] In the diagram: 1. Frame; 2. Hanging fixture square tube; 3. Movable platform; 4. Bracket; 5. Support rod; 6. External frame; 11. Medicine tank; 12. First plate platform; 13. Second plate platform; 14. Gear disk; 15. Chain; 16. Column; 17. Boom; 171. First roller; 18. U-shaped steel; 201. Hanger support square tube; 202. Pulley; 203. Hanger sliding track; 21. First clamp; 22. Telescopic rod; 221. Reinforcing steel plate; 222. Side fixing plate; 23. Lifting rod; 231. Second clamp; 232. Sleeve; 233. Third clamp; 234. Tooth; 31. Second roller; 32. Platform fixed track; 33. Hydraulic cylinder; 34. Connecting plate; 35. Guide wheel; 41. Exhaust fan; 42. Gas processor; 51. V-shaped seat; 52. First wheel frame; 53. Third roller; 54. Second wheel frame; 55. Fourth roller; 61. Bearing housing; 62. Rotating shaft; 63. Disc; 64. Movable plate; 65. Limiting plate; 66. Synchronizing rod; 67. Movable groove. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1 to 7 As shown, a three-in-one electroplating device includes a frame 1, which is used to position the gear disk 14 and to accommodate the chemical tank 11.

[0032] The frame 1 has a first plate-laying platform 12 and a second plate-laying platform 13 staggered at both ends. Both the first plate-laying platform 12 and the second plate-laying platform 13 are used to place circuit boards. The first plate-laying platform 12 works with the robot to load the circuit board onto the hanger assembly, and the second plate-laying platform 13 works with the robot to remove the circuit board from the hanger assembly.

[0033] The frame 1 is equipped with symmetrically arranged medicine tanks 11, which are used for processing circuit boards.

[0034] A U-shaped steel 18 is provided between the medicine tanks 11. The U-shaped steel 18 is used to support the positioning gear disk 14, thereby enhancing the stability of the column 16 when it moves.

[0035] The upper two ends of the frame 1 and the upper two ends of the U-shaped steel 18 are rotatably connected to symmetrically arranged gear disks 14. Chains 15 mesh between the corresponding gear disks 14, and the gear disks 14 can rotate synchronously through the cooperation of the chains 15.

[0036] Multiple evenly arranged columns 16 are connected between the chains 15, and the columns 16 are perpendicular to the horizontal plane. Through the cooperation of two chains 15, the stability of the columns 16 can be enhanced, so that the columns 16 are always perpendicular to the horizontal plane and will not deflect. The columns 16 are used to limit the position of the boom 17.

[0037] A boom 17 is slidably connected to the side of the column 16 away from the middle of the frame 1. The boom 17 is used to lift the hanging fixture assembly, and the hanging fixture assembly can be raised and lowered by raising and lowering the boom 17.

[0038] The boom 17 is connected to a first roller 171 at one end near the column 16. The first roller 171 is in contact with the column 16 and is used to reduce the friction between the boom 17 and the column 16, so that the boom 17 can be raised and lowered more smoothly.

[0039] In practical use, the gear disk 14 rotates in conjunction with the chain 15, enabling the gear disk 14 to rotate synchronously. The rotation of the gear disk 14 drives the chain 15 to rotate, and the chain 15 drives the column 16 to move during the rotation. The movement of the column 16 drives the boom 17 to move, and the movement of the boom 17 drives the hanging assembly to move, thereby moving the circuit board. In order to ensure that the circuit board can fully react or be processed with the chemical solution, after the circuit board enters the chemical solution tank 11, the gear disk 14 will stop running for a period of time according to the processing requirements, allowing the circuit board to react or be processed with the chemical solution. After completion, the gear disk 14 will run again, achieving the purpose of intermittent operation and ensuring the processing of the circuit board.

[0040] Please see Figures 12 to 14 As shown, the chemical tank 11 consists of three processes: descaling, chemical copper plating, and copper plating, making the chemical tank 11 a three-in-one tank. This enables continuous hole metallization process and achieves contactless operation during circuit board production, solving the drawbacks of traditional gantry and horizontal equipment, meeting product process requirements, reducing quality risks, and optimizing chemical recycling to reduce waste liquid treatment volume, thus meeting environmental protection requirements.

[0041] The process flow sequence for removing adhesive residue is as follows: loosening → water washing → water washing → potassium permanganate removal of adhesive residue → recycling water washing → water washing → water washing → pre-neutralization → water washing → neutralization → water washing → water washing.

[0042] The process flow sequence for chemical copper plating is as follows: hole preparation → hot water washing → water washing → hole preparation → water washing → water washing → micro etching → water washing → water washing → pre-immersion → activation → water washing → water washing → quick-treatment → water washing → water washing → copper plating → water washing → hot water washing → water washing.

[0043] The copper plating process is as follows: pre-immersion → flash plating → water washing → water washing.

[0044] The chemical tank 11 is equipped with a handle removal tank, which is a section corresponding to the processes of loosening, potassium permanganate descaling, hole shaping, micro-etching, activation, acceleration, and copper plating. After the hanging assembly enters the handle removal tank, it will not move up or down. The circuit board will stay in the chemical tank 11 until the end of the last cycle before it moves up to the next processing stage. This design allows the circuit board to have sufficient processing time. Specifically, based on a one-minute transmission cycle design, the rising, falling, and lateral movement take thirty seconds. The circuit board stays in the chemical tank 11 for thirty seconds. The circuit board does not move up in the handle removal tank, but only moves within the chemical tank 11. Thus, the time the circuit board stays in the chemical tank 11 is increased to one minute, so the circuit board has enough time to react.

[0045] It is worth noting here that: First, water washing can effectively remove chemical residues from the circuit board surface. The waste water from the multi-stage water washing can be connected to the chemical tank 11 corresponding to the front-end water washing process through a pipe for use as a rough water wash in the first stage, which can save water resources. In addition, in the program setting, a dripping time is set during the process of the hanging assembly driving the circuit board to rise, which can reduce the risk of chemical cross-contamination.

[0046] 2. Chemical copper plating requires constant temperature (30℃-35℃) and mechanical stirring. Copper plating requires current density control. The device needs to integrate heating and cooling systems as well as multi-stage stirring devices. All of the above systems and devices are installed in the corresponding positions of the chemical tank 11 and are controlled automatically by computer or manually.

[0047] 3. The chemical solution tank section 11 for chemical copper plating requires a stabilizer replenishment system. The chemical solution tank section 11 for copper plating requires continuous filtration to avoid copper particle deposition. Both the chemical solution tank section 11 for chemical copper plating and the chemical solution tank section 11 for copper plating have independently designed circulation pipelines and filtration modules.

[0048] IV. The 11 chemical tanks corresponding to copper plating are equipped with pH sensors and real-time current monitoring. Except for the 11 chemical tanks corresponding to glue residue, which have visual inspection, each 11 chemical tank that requires temperature control has a temperature detection device and a high / low liquid level detection device. All of the above detection devices are concentrated on the PC end of the device, which can clearly see the real-time status of each 11 chemical tanks, enabling real-time feedback and adjustment, and facilitating operation.

[0049] Please see Figure 8 and Figure 9 As shown, a symmetrically arranged hanging bracket assembly is installed below the end of the boom 17 away from the column 16, corresponding to the position of the medicine tank 11. The hanging bracket assembly is used to fix the circuit board.

[0050] The mounting assembly includes a mounting square tube 2, which is used to fix and support the reinforcing steel plate 221.

[0051] Multiple evenly arranged first clamps 21 are provided below the square tube 2 of the hanger. The first clamps 21 are used to clamp and fix the upper end face of the circuit board.

[0052] Both ends of the square tube 2 of the hanger are connected to side fixing plates 222, which are used to adjust the position of the telescopic rod 22 and the sleeve 232.

[0053] Two sets of symmetrically arranged telescopic rods 22 are provided below the square tube 2 of the hanger, corresponding to the side fixing plate 222. The adjacent telescopic rods 22 are arranged in a centrally symmetrical manner. The end of each telescopic rod 22 near the side fixing plate 222 is connected to the side fixing plate 222. The telescopic rods 22 are used to adjust the horizontal position of the lifting rod 23 and the second clamp 231, so that the hanger assembly can fix circuit boards of different widths.

[0054] A reinforcing steel plate 221 is provided below the square tube 2 of the hanger, corresponding to the position of the telescopic rod 22. The reinforcing steel plate 221 is used to clamp the telescopic rod 22, so that the telescopic rod 22 can be fixed after adjustment, and the telescopic rod 22 can be prevented from shifting.

[0055] Each side of the side fixing plate 222 away from the reinforcing steel plate 221 is connected to a sleeve 232. The sleeve 232 is used to limit the position of the lifting rod 23 so that the lifting rod 23 can always be perpendicular to the horizontal plane.

[0056] A lifting rod 23 is slidably connected inside the sleeve 232. The lifting rod 23 is used to adjust the height of the second clamp 231 so that the hanging assembly can fix circuit boards of different heights.

[0057] Each of the lifting rods 23 has a second clamp 231 connected to its lower end. The second clamp 231 is used to clamp and fix the lower end face of the circuit board.

[0058] A third clamp 233 is connected to the sleeve 232 at the position corresponding to the lifting rod 23. A tooth 234 is provided on the upper part of the lifting rod 23 at the position corresponding to the third clamp 233. The end of the third clamp 233 engages with the tooth 234. The third clamp 233 is used to clamp and fix the lifting rod 23 to prevent the lifting rod 23 from sliding.

[0059] The mounting bracket is made of SUS316 material. When processing the circuit board, the removal of adhesive residue requires high temperature resistance and strong oxidizing agents, chemical copper needs to be resistant to alkaline corrosion, and copper plating needs to be resistant to acid corrosion. By using the above materials, all three conditions can be met at the same time.

[0060] The lifting rod 23 is made of TC4 material, and the side fixing plate 222 is made of high-polymer PE board. This setting method fixes the circuit board surface both above and below, making the circuit board surface more stable. When the circuit board moves up and down, it will not easily fall off when entering and exiting the medicine tank 11.

[0061] Both ends of the hanging support square tube 201 are rotatably connected to symmetrically arranged pulleys 202. Above the medicine tank 11, corresponding to the position of the pulleys 202, there are symmetrically arranged hanging sliding rails 203. The pulleys 202 and the hanging sliding rails 203 work together. Through the cooperation of the pulleys 202 and the hanging sliding rails 203, the stability of the circuit board can be enhanced when it moves horizontally in the medicine tank 11.

[0062] In practical use, the cylinder pushes the third clamp 233, causing the end of the third clamp 233 to disengage from the teeth 234, thus disengaging the lifting rod 23. This allows for height adjustment of the lifting rod 23 and the second clamp 231. After the height of the second clamp 231 is adjusted, circuit boards of different heights can be clamped and fixed. The cylinder pushes the reinforcing steel plate 221, causing the telescopic rod 22 to lose its clamping force and thus become unfixed. Once the telescopic rod 22 is unfixed, the cylinder can be used to adjust the positions of the telescopic rod 22, the side fixing plate 222, the sleeve 232, the lifting rod 23, and the second clamp 231. After the position of the second clamp 231 is adjusted, circuit boards of different widths can be clamped and fixed. Before processing the circuit board, the second clamp is adjusted according to the gears of the circuit board. The height and position of clamp 231 can be adjusted to clamp and fix circuit boards of different sizes, improving adaptability. The first clamp 21 and the second clamp 231 are opened by pushing the cylinder. After the first clamp 21 and the second clamp 231 are opened, the circuit board can be placed between the first clamp 21 and the second clamp 231 by the robot arm, so that the first clamp 21 and the second clamp 231 clamp and fix the upper and lower surfaces of the circuit board to ensure the stability of the circuit board. After the circuit board is processed, the robot arm grasps the circuit board, and the first clamp 21 and the second clamp 231 are opened by pushing the cylinder again, so that the circuit board is no longer clamped and fixed, and the processed circuit board can be removed. The operation is simple and convenient.

[0063] Please see Figure 7 , Figure 10 and Figure 11 As shown, a movable platform 3 is provided inside the frame 1 above the U-shaped steel 18. The movable platform 3 is used to drive the boom 17 to rise and fall.

[0064] A hydraulic cylinder 33 is installed in the middle of the frame 1, corresponding to the position of the movable platform 3. The hydraulic cylinder 33 is used to pull or release the wire rope.

[0065] The output end of the hydraulic cylinder 33 is connected to a connecting plate 34. On the top of the frame 1 and inside the U-shaped steel 18, symmetrically arranged guide wheels 35 are rotatably connected to the corresponding positions of the connecting plate 34. A steel wire rope is wound around the middle of the guide wheel 35, and the two ends of the steel wire rope are connected to the movable platform 3 and the connecting plate 34 respectively. The guide wheel 35 is used to guide the steel wire rope. Through the cooperation of the two sets of guide wheels 35, the hydraulic cylinder 33 can control the lifting and lowering of the movable platform 3 and ensure the stability of the movable platform 3, so as to avoid the movable platform 3 from shaking.

[0066] It is worth noting here that the wire rope serves as a transmission component for the lifting and lowering of the movable platform 3. The transmission components here include, but are not limited to, wire ropes, chains, belts, etc.

[0067] Each end of the boom 17 near the movable platform 3 is connected to a second roller 31. Each side of the movable platform 3 away from the handle release groove is connected to an L-shaped platform fixing rail 32, and the platform fixing rail 32 corresponds to the second roller 31. The second roller 31 is used to reduce the friction between the boom 17 and the movable platform 3, so that the boom 17 can move smoothly. The movable platform 3, in conjunction with the platform fixing rail 32, can drive the boom 17 to rise and fall.

[0068] In practical use, the hydraulic cylinder 33 drives the connecting plate 34 to descend, causing the connecting plate 34 to pull the wire rope. With the cooperation of the two sets of guide wheels 35, the movable platform 3 can rise smoothly. The rise of the movable platform 3 drives the platform fixed track 32 to rise. After the platform fixed track 32 rises, it cooperates with the second roller 31 to make the boom 17, which is not corresponding to the handle release groove, drive the hanging assembly and circuit board to rise. The circuit board corresponding to the handle release groove remains in the medicine tank 11 to react with the medicine. After rising, the boom 17, in conjunction with the gear disk 14 and the chain 15, lifts... The circuit board moves to the next processing stage. The circuit board remaining in the chemical tank 11 moves laterally within the chemical tank 11 in conjunction with the gear disk 14 and chain 15, and continues to react with the chemical solution. After the circuit board has moved to the next position, the hydraulic cylinder 33 drives the connecting plate 34 to rise. The connecting plate 34, in conjunction with two sets of guide wheels 35, causes the steel wire rope to drive the movable platform 3 to descend smoothly. The descent of the movable platform 3 causes the platform fixed track 32 to descend, thereby allowing the circuit board to descend into the chemical tank 11 for the next processing stage, so that the circuit board can fully react with the chemical solution.

[0069] Please see Figure 7 As shown, a bracket 4 is provided on the outside of the frame 1 at the position corresponding to the medicine tank 11. Multiple exhaust fans 41 are connected inside the bracket 4. The bracket 4 is used to install and fix the exhaust fans 41. The exhaust fans 41 are used to extract the medicine from areas where the temperature is high and where the medicine is evaporating.

[0070] A gas processor 42 is connected above the support 4. The gas processor 42 is used to process the collected gas.

[0071] In practical use, the use of exhaust fan 41 can prevent formaldehyde volatilization and the volatilization of medicine due to high temperature. For the medicine tank 11 section with high temperature and large volatilization, in addition to the exhaust fan 41 installed on the side of the medicine tank 11, an exhaust fan 41 is also installed above the medicine tank 11, which can effectively prevent the medicine from volatilizing. Furthermore, the gas processor 42 can separate and collect acidic and alkaline gases.

[0072] Please see Figures 12 to 18As shown, three sets of symmetrically arranged support rods 5 are provided above the medicine tank 11 at the position corresponding to the long side (the three sets of support rods 5 correspond to the expansion to pre-soaking section, the water washing section 13 to water washing section 16 and the water washing section 17 to pre-soaking section respectively), and the support rods 5 are used to connect the V-shaped seat 51.

[0073] The upper surface of the support rod 5 is connected to a plurality of evenly arranged V-shaped seats 51, which are used to limit and support the square tube 201 by means of a hanger.

[0074] The upper surface of the medicine tank 11 is connected to the position corresponding to the end of the support rod 5. A third roller 53 is rotatably connected above the first roller 52. The support rod 5 is in contact with the third roller 53. The first roller 52 is used to support and fix the third roller 53. The third roller 53 can support the support rod 5 and reduce friction.

[0075] The upper surface of the medicine tank 11 is connected to the middle position of the support rod 5 with a second wheel frame 54. The second wheel frame 54 is rotatably connected to the symmetrically arranged fourth rollers 55. The support rod 5 is located between the fourth rollers 55 and fits against the fourth rollers 55. The second wheel frame 54 is used to support and fix the fourth rollers 55. The fourth rollers 55 can support and limit the support rod 5 and reduce friction.

[0076] An outer frame 6 is provided at the position corresponding to the support rod 5 on the outside of the medicine tank 11. The outer frame 6 is used to support and fix the bearing seat 61.

[0077] The upper surface of the outer frame 6 is connected to a bearing seat 61, and a rotating shaft 62 is connected between adjacent bearing seats 61. The bearing seat 61 is used to fix the position of the rotating shaft 62, and the rotating shaft 62 is used to connect to the drive motor to make the rotating shaft 62 rotate.

[0078] Both ends of the rotating shaft 62 are eccentrically connected to disks 63 near the support rod 5. Through the eccentric connection, the disks 63 rotate around the rotating shaft 62 as the center.

[0079] A movable plate 64 is connected to the support rod 5 at the position corresponding to the disc 63. A symmetrically arranged limiting plate 65 is connected to the side of the movable plate 64 near the disc 63. The disc 63 is located between the limiting plates 65 and fits against the limiting plates 65. Through the cooperation of the movable plate 64 and the limiting plate 65, when the disc 63 rotates eccentrically, it can drive the movable plate 64 and the limiting plate 65 to move back and forth.

[0080] The movable plate 64 has a movable groove 66 at the position corresponding to the rotating shaft 62. The rotating shaft 62 is movably connected in the movable groove 66, which provides the necessary space for the rotating shaft 62 to move.

[0081] In practical use, after the movable platform 3 lowers the circuit board and the hanging support square tube 201 falls into the V-shaped seat 51, the drive motor drives the rotating shaft 62 to rotate. The rotation of the rotating shaft 62 drives the disc 63 to rotate around the rotating shaft 62. During the rotation, the disc 63 pushes the limiting plate 65, causing the limiting plate 65 to move back and forth. With the cooperation of the movable plate 64, the limiting plate 65 drives the support rod 5 and the V-shaped seat 51 to move back and forth. The reciprocating movement of the V-shaped seat 51 drives the hanging support square tube 201 to move back and forth, so that the circuit board can move back and forth in the medicine tank 11. During the reciprocating movement, the surface of the circuit board can be treated more evenly by the medicine in the medicine tank 11, improving the quality of the product.

[0082] A three-in-one electroplating process includes the following steps: S1: Adjust the height and position of the second clamp 231 according to the size of the circuit board. First, push the third clamp 233 with a cylinder to make the lifting rod 23 lose its fixation. Adjust the height of the lifting rod 23 and the second clamp 231. Then, push the reinforcing steel plate 221 with a cylinder to make the telescopic rod 22 lose its clamping force. Finally, adjust the position of the second clamp 231 with a cylinder.

[0083] S2: The chain 15 is driven to rotate by the rotation of the gear disk 14. During the rotation of the chain 15, the column 16, the boom 17, the hanging assembly and the circuit board are moved. The gear disk 14 will run intermittently according to the processing to allow the circuit board to fully react with the chemical solution or to process it.

[0084] S3: When the gear disk 14 stops running and the hanging assembly corresponds to the first plate table 12, the first clamp 21 and the second clamp 231 are pushed by the cylinder to open the first clamp 21 and the second clamp 231. The circuit board is placed between the first clamp 21 and the second clamp 231 by the robot arm, so that the first clamp 21 and the second clamp 231 clamp and fix the upper and lower surfaces of the circuit board.

[0085] S4: When the gear disc 14 stops running, the connecting plate 34 is driven to descend by the oil cylinder 33, which pulls the steel wire rope. With the cooperation of the two sets of guide wheels 35, the movable platform 3 can rise smoothly. The rising of the movable platform 3 cooperates with the platform fixed track 32 and the second roller 31, so that the boom 17, which is not corresponding to the handle release groove, drives the hanging assembly and the circuit board to rise. The circuit board corresponding to the handle release groove continues to remain in the medicine tank 11 to react with the medicine.

[0086] S5: The rising boom 17, in conjunction with the gear disc 14 and chain 15, moves the circuit board to the next processing stage. The circuit board remaining in the chemical tank 11 moves laterally within the chemical tank 11. After the circuit board is moved, the hydraulic cylinder 33 drives the connecting plate 34 to rise. The connecting plate 34, in conjunction with two sets of guide wheels 35, causes the steel wire rope to drive the movable platform 3 and the platform fixed track 32 to descend smoothly, allowing the circuit board to descend into the chemical tank 11 for the next processing stage.

[0087] S6: After the circuit board descends into the medicine tank 11 and the hanging support square tube 201 falls into the V-shaped seat 51, the drive motor drives the rotating shaft 62 to rotate, causing the disc 63 to rotate around the rotating shaft 62. During the rotation, the disc 63 pushes the limiting plate 65, causing the circuit board to move back and forth in the medicine tank 11.

[0088] S7: When the gear disk 14 stops running and the hanging assembly corresponds to the second plate table 13, the circuit board is processed. The circuit board is grabbed by the robot arm, and then the first clamp 21 and the second clamp 231 are pushed by the cylinder to open the first clamp 21 and the second clamp 231, so that the circuit board is no longer clamped and fixed, and the processed circuit board can be removed.

[0089] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0090] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A three-in-one electroplating device, comprising a frame (1), characterized in that: The frame (1) is provided with symmetrically arranged chemical tanks (11). The chemical tanks (11) consist of three processes: descaling, chemical copper plating and copper plating. This makes the chemical tanks (11) a three-in-one tank. By integrating the descaling, chemical copper plating and copper plating processes, an integrated fully automatic production line equipment is formed, enabling the circuit board to be processed continuously and without contact. U-shaped steel (18) is provided between the medicine tanks (11). The upper two ends of the frame (1) and the upper two ends of the U-shaped steel (18) are rotatably connected to symmetrically arranged gear disks (14). Chains (15) mesh between the corresponding gear disks (14). Multiple evenly arranged columns (16) are connected between the chains (15). Through the cooperation of the two sets of gear disks (14) and chains (15), the columns (16) can move smoothly. A boom (17) is slidably connected to the side of the column (16) away from the middle of the frame (1). A first roller (171) is connected to the end of the boom (17) close to the column (16). The first roller (171) is in contact with the column (16). A symmetrically arranged hanging assembly is installed below the end of the boom (17) away from the column (16) at the position corresponding to the medicine tank (11). The hanging assembly clamps and fixes circuit boards of different sizes. During the movement of the column (16), it cooperates with the boom (17) to drive the hanging assembly and the circuit board to move.

2. The three-in-one electroplating device according to claim 1, characterized in that: The chemical tank (11) is equipped with a stripping tank, and the stripping tank is the chemical tank (11) section corresponding to the process flow of loosening, potassium permanganate descaling, hole shaping, micro-etching, activation, acceleration and copper melting. After the hanging assembly enters the stripping tank, it will not move up or down, so that the circuit board will wait in the chemical tank (11) until the last cycle ends before moving up and entering the next processing stage.

3. The three-in-one electroplating device according to claim 2, characterized in that: The mounting assembly includes a mounting square tube (2), with multiple evenly arranged first clamps (21) below the mounting square tube (2). Both ends of the mounting square tube (2) are connected to side fixing plates (222). Two sets of symmetrically arranged telescopic rods (22) are arranged below the mounting square tube (2) at positions corresponding to the side fixing plates (222). The first clamps (21) clamp and fix the upper surface of the circuit board.

4. The three-in-one electroplating device according to claim 3, characterized in that: A reinforcing steel plate (221) is provided below the square tube (2) of the hanging fixture corresponding to the position of the telescopic rod (22). The adjacent telescopic rods (22) are arranged in a centrally symmetrical manner. The end of the telescopic rod (22) near the side fixing plate (222) is connected to the side fixing plate (222). The reinforcing steel plate (221) clamps and fixes the telescopic rod (22), and the side fixing plate (222) adjusts the position of the telescopic rod (22).

5. The three-in-one electroplating apparatus according to claim 4, characterized in that: The side fixing plate (222) away from the reinforcing steel plate (221) is connected to a sleeve (232). A lifting rod (23) is slidably connected inside the sleeve (232). A second clamp (231) is connected to the lower end of the lifting rod (23). A third clamp (233) is connected to the sleeve (232) at the position corresponding to the lifting rod (23). The second clamp (231) clamps and fixes the lower end face of the circuit board. The lifting rod (23) adjusts the height of the second clamp (231).

6. The three-in-one electroplating apparatus according to claim 5, characterized in that: The lifting rod (23) is provided with teeth (234) at the position corresponding to the third clamp (233) above it. The end of the third clamp (233) meshes with the teeth (234). Both ends of the hanging support square tube (201) are rotatably connected with symmetrically arranged pulleys (202). The medicine tank (11) is connected with symmetrically arranged hanging sliding rails (203) at the position corresponding to the pulleys (202) above it. The third clamp (233) cooperates with the teeth (234) to fix the lifting rod (23).

7. The three-in-one electroplating apparatus according to claim 6, characterized in that: An active platform (3) is provided inside the frame (1) at the position above the U-shaped steel (18). A hydraulic cylinder (33) is provided in the middle of the frame (1) at the position corresponding to the active platform (3). A connecting plate (34) is connected to the output end of the hydraulic cylinder (33). A symmetrically arranged guide wheel (35) is rotatably connected to the position above the frame (1) and inside the U-shaped steel (18) at the position corresponding to the connecting plate (34). A steel wire rope is wound in the middle of the guide wheel (35). The two ends of the steel wire rope are connected to the active platform (3) and the connecting plate (34) respectively. The connecting plate (34) is driven to rise or fall by the hydraulic cylinder (33). The hydraulic cylinder (33) cooperates with the guide wheel (35) and the steel wire rope to enable the active platform (3) to rise or fall.

8. The three-in-one electroplating apparatus according to claim 7, characterized in that: The boom (17) is connected to a second roller (31) at the end near the movable platform (3). The movable platform (3) is connected to an L-shaped platform fixed track (32) at the side away from the handle removal groove. The platform fixed track (32) corresponds to the second roller (31). With the cooperation of the platform fixed track (32) and the second roller (31), the movable platform (3) drives the boom (17), the hanging assembly and the circuit board that do not correspond to the handle removal groove to rise. The circuit board that corresponds to the handle removal groove remains in the medicine tank (11).

9. A three-in-one electroplating apparatus according to claim 8, characterized in that: Three sets of symmetrically arranged support rods (5) are provided above the medicine tank (11) at the position corresponding to the long side. Multiple uniformly arranged V-shaped seats (51) are connected to the upper surface of the support rods (5). An outer frame (6) is provided outside the medicine tank (11) at the position corresponding to the support rods (5). A bearing seat (61) is connected to the upper surface of the outer frame (6). A rotating shaft (62) is connected between adjacent bearing seats (61). A disc (63) is eccentrically connected to both ends of the rotating shaft (62) near the support rods (5). A movable plate (64) is connected to the position of the support rod (5) corresponding to the disc (63). A symmetrically arranged limiting plate (65) is connected to the side of the movable plate (64) near the disc (63). The disc (63) is located between the limiting plates (65) and fits against the limiting plates (65).

10. A three-in-one electroplating process, applicable to the three-in-one electroplating apparatus described in any one of claims 1-9, characterized in that, Includes the following steps: S1: Adjust the height and position of the second clamp (231) according to the size of the circuit board. First, push the third clamp (233) with the cylinder to make the lifting rod (23) lose its fixation. Adjust the height of the lifting rod (23) and the second clamp (231). Then, push the reinforcing steel plate (221) with the cylinder to make the telescopic rod (22) lose its clamping force. Finally, adjust the position of the second clamp (231) with the cylinder. S2: The chain (15) is driven to rotate by the rotation of the gear disk (14). During the rotation of the chain (15), the column (16), the boom (17), the hanger assembly and the circuit board are moved. The gear disk (14) will run intermittently according to the processing, so that the circuit board can fully react with the chemical solution or be processed. S3: When the gear disk (14) stops running and the hanger assembly corresponds to the first plate table (12), the first clamp (21) and the second clamp (231) are pushed by the cylinder to open the first clamp (21) and the second clamp (231). The circuit board is placed between the first clamp (21) and the second clamp (231) by the robot arm, so that the first clamp (21) and the second clamp (231) clamp and fix the upper and lower surfaces of the circuit board. S4: When the gear disk (14) stops running, the connecting plate (34) is driven to descend by the oil cylinder (33), so that the connecting plate (34) pulls the wire rope. With the cooperation of the two sets of guide wheels (35), the movable platform (3) can rise smoothly. The movable platform (3) rises in conjunction with the platform fixed track (32) and the second roller (31), so that the boom (17) that is not corresponding to the handle removal groove body drives the hanging assembly and the circuit board to rise. The circuit board corresponding to the handle removal groove body continues to remain in the medicine tank (11) to react with the medicine. S5: The rising boom (17) works with the gear disk (14) and chain (15) to move the circuit board to the next processing stage. The circuit board left in the chemical tank (11) moves horizontally in the chemical tank (11). After the circuit board is moved, the cylinder (33) drives the connecting plate (34) to rise. The connecting plate (34) works with two sets of guide wheels (35) to make the wire rope drive the movable platform (3) and the platform fixed track (32) to descend smoothly, so that the circuit board descends into the chemical tank (11) for the next processing stage. S6: The circuit board descends into the medicine tank (11), and the hanging support square tube (201) falls into the V-shaped seat (51). The drive motor drives the rotating shaft (62) to rotate, so that the disc (63) rotates around the rotating shaft (62). During the rotation, the disc (63) pushes the limiting plate (65), so that the circuit board moves back and forth in the medicine tank (11). S7: When the gear disk (14) stops running and the hanging assembly corresponds to the second plate table (13), the circuit board is processed. The circuit board is grabbed by the robot arm and then the first clamp (21) and the second clamp (231) are pushed by the cylinder to open the first clamp (21) and the second clamp (231), so that the circuit board is no longer clamped and fixed, and the processed circuit board can be removed.

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