Pcb plate electroplating rinse tank
By setting up flowing parts, stirring parts and detachable screen baskets in the PCB board electroplating cleaning tank, the problem of degradation of cleaning effect caused by accumulation of cleaning water pollution is solved, and efficient reuse of water and environmental protection is achieved.
Patent Information
- Application Number
- CN202421523850.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-01
AI Technical Summary
In the gantry wire plating process of PCB boards, the accumulation of pollutants in the cleaning water will reduce the cleaning effect, affect the uniformity of the electroplating layer and product quality, and frequent water exchange increases production costs and has a negative impact on the environment.
A pcb sheet electroplating cleaning tank is designed, by setting a flowing member to make the water flow outward from the center and return from both sides, the water is aerated by the flowing member, and a stirring member and a removable screen basket are provided in the cleaning tank to improve the cleaning effect and the reuse of water.
It effectively reduces the reduction in the cleaning effect caused by water contamination during repeated cleaning, greatly improves the cleaning effect of water reuse, reduces production costs, and reduces environmental pollution.
Smart Images
Figure CN222931428U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cleaning equipment, in particular to an electroplating cleaning tank for PCB plates. Background Art
[0002] The PCB board, also known as the printed circuit board, is a plate-shaped substrate used to support and connect electronic components. PCB board electroplating refers to depositing a metal layer on the surface of the PCB board through an electrochemical reaction method to achieve circuit connection and conduction.
[0003] Among them, the gantry line electroplating process for PCB boards is a process for forming a metal coating on the PCB. This process usually uses gantry electroplating equipment to immerse the PCB board in the electroplating solution and form a metal coating on the surface of the PCB board through the action of an electric current. Since various pollutants may exist on the surface of the PCB board or the board itself may rust, such as dust, oil stains, fingerprints, etc., these pollutants not only affect the electroplating effect but may also have a negative impact on the adhesion and quality of the electroplating layer. Therefore, before electroplating, a cleaning operation is usually required to remove the pollutants so that the electroplating layer can adhere evenly and tightly to the surface of the PCB board. Therefore, in the gantry line electroplating process, the PCB board first undergoes pretreatment, such as cleaning, degreasing, rust removal, etc., to ensure the cleanliness and flatness of the surface of the PCB board. Then, the PCB board is placed on the conveyor belt of the gantry electroplating equipment, and through the spraying device or immersion tank inside the equipment, the surface of the PCB board is evenly covered with a layer of electroplating solution.
[0004] However, as the cleaning process continues, pollutants in the clear water gradually accumulate, including residual chemical substances, particulate dust, and tiny materials that may fall off from the circuit board. The accumulation of these pollutants not only reduces the cleaning effect of the cleaning water but may also have a negative impact on subsequent immersion washing operations, such as causing damage to sensitive components on the circuit board or affecting the uniformity of the electroplating layer. Therefore, in order to maintain the cleaning effect and ensure product quality, frequent water replacement is required. However, this water replacement operation not only increases production costs but also directly discharges wastewater containing particulate impurities into the environment, which is not only a great waste of water resources but may also have a long-term negative impact on the environment. Summary of the Utility Model
[0005] The purpose of the utility model is to provide an electroplating cleaning tank for PCB plates to solve the problems raised in the above background art.
[0006] To solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A PCB board electroplating cleaning tank, comprising a cleaning tank body; a partition is fixedly connected between the inner walls of the cleaning tank body, and the cleaning tank body is divided into upper and lower chambers by the partition. The partition is a filter plate. Two flow components are arranged on one side of the cleaning tank body. One of the flow components is used for aerating the water in the water tank. Three flow collecting grooves are arranged at the top of the partition, and the three flow collecting grooves are axially symmetrically distributed. The flow components cooperate with the flow collecting grooves to make the water turn directionally; a stirring component is also arranged in the cleaning tank, and the stirring component is used for making the water churn.
[0008] By adopting the above technical solution, by setting the flow components, the water flow inside the cleaning tank body can flow from the central position to the outside and flow back upward from both sides, so that the PCB boards placed in the cleaning tank body are continuously washed by the water flow. At the same time, the flow components can be used to aerate the water after cleaning to release some of the gases in the water to the outside, thereby reducing the situation that the cleaning effect decreases due to water pollution during the repeated cleaning process.
[0009] A further improvement of the technical solution of the present utility model lies in that: the stirring component includes a rotating rod, the rotating rod is rotatably connected between the inner walls of the cleaning tank body, a motor is fixedly connected to one side of the cleaning tank body, one end of the rotating rod extends to the outside of the cleaning tank body and is connected to the output end of the motor through a pulley and a belt, and a plurality of stirring rods are fixedly connected to the outside of the rotating rod.
[0010] By adopting the above technical solution, by controlling the motor to work, the rotating rod is driven to rotate, and then the stirring rods are flipped to stir the water in the cleaning tank body. On the one hand, it is convenient to release some harmful gases or odor gases dissolved in the water during the subsequent cleaning process. At the same time, the churning water body can continuously impact the PCB boards to assist in cleaning.
[0011] A further improvement of the technical solution of the present utility model lies in that: the flow component includes a fixing plate, the fixing plate is fixedly connected to one side of the cleaning tank body, a piston cylinder is fixedly connected to one side of the fixing plate, a piston plate is slidably connected between the inner walls of the piston cylinder, a water suction pipe and a drain pipe are arranged on one of the piston cylinders, an air inlet pipe and an air outlet pipe are arranged on the other piston cylinder, check valves are arranged inside the water suction pipe, the drain pipe, the air inlet pipe and the air outlet pipe, a flow collecting pipe is fixedly connected to the bottom of the partition, a plurality of shunt pipes are arranged on the flow collecting pipe, one ends of the shunt pipes all extend to the inside of the flow collecting groove, and the end of the water suction pipe away from the piston cylinder is communicated with the flow collecting pipe located at the central position; the drain pipe is communicated with the flow collecting pipes located on both sides.
[0012] With the above technical solution, the piston plate performs piston motion; during the process, in cooperation with the one-way valve, the same effect as that of a piston pump is produced in both piston cylinders, and thus water is continuously pumped from the water suction pipe and discharged to the drain pipe. The water in the cleaning tank body first passes through the sieve basket for filtration, and after filtration, it enters the manifold through the shunt pipe, then enters the piston cylinder through the water suction pipe, and then is discharged to the manifolds on both sides through the drain pipe, so that the water flows downward from the central position and upward from both sides, and the PCB boards placed in the cleaning tank body are continuously rinsed by the water flow.
[0013] A further improvement of the technical solution of the present utility model lies in that: both the rotating rod and the stirring rod are provided as hollow rods, and the inside of the rotating rod communicates with the inside of the stirring rod. A plurality of air outlets are provided on the outer side of the stirring rod. One end of the rotating rod extends to the outside of the cleaning tank body and is fixedly connected with a rotary joint. One end of the air outlet pipe away from the piston cylinder is fixedly connected with one end of the rotary joint away from the rotating rod. The air outlet pipe communicates with the inside of the rotating rod through the rotary joint, and the air inlet pipe communicates with the external environment.
[0014] With the above technical solution, through the operation of another flow component, air is continuously pumped from the external environment and discharged into the cleaning tank body through the rotary joint, the rotating rod and the stirring rod, thereby realizing aeration to further release some dissolved gases to the outside, reducing the influence on subsequent cleaning operations.
[0015] A further improvement of the technical solution of the present utility model lies in that: a cam is fixedly connected to the outer side of the rotating rod. One side of the fixed plate is slidably connected with a sliding rod. One end of the sliding rod is fixedly connected with the piston plate. The end of the sliding rod away from the piston plate extends to the other side of the fixed plate and is fixedly connected with a backing plate. The cam contacts the backing plate, and a spring is sleeved on the outer side of the sliding rod.
[0016] With the above technical solution, during the cleaning process, the cam rotates accordingly, and thus in cooperation with the spring, both backing plates continuously perform reciprocating motion, and drive the piston plate to perform piston motion through the sliding rod.
[0017] A further improvement of the technical solution of the present utility model lies in that: a sieve basket is detachably connected to the inside of the manifold located at the central position.
[0018] With the above technical solution, the water drawn into the manifold at the central position is continuously filtered by the sieve basket, so that impurities gather in the sieve basket for easy cleaning.
[0019] A further improvement of the technical solution of the present utility model lies in that: a filter screen is provided inside the air inlet pipe.
[0020] With the above technical solution, it is convenient to filter the air inhaled into the piston cylinder to avoid dust being inhaled.
[0021] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is as follows:
[0022] 1. The present utility model provides a plating cleaning tank for PCB boards. By setting a flow component, the water flow inside the cleaning tank body can flow from the central position to the outside (the flow component) and flow back upward from both sides, so that the PCB boards placed in the cleaning tank body are continuously washed by the water flow. At the same time, the flow component can be used to aerate the water after cleaning to release some gases in the water to the outside, thereby reducing the situation where the cleaning effect decreases due to water pollution during the repeated cleaning process and greatly improving the cleaning effect of water reuse.
[0023] 2. The present utility model provides a plating cleaning tank for PCB boards. By detachably connecting a sieve basket in the collecting trough located at the central position, the water pumped into from the collecting trough at the central position will be continuously filtered by the sieve basket, so that impurities accumulate in the sieve basket, facilitating the removal of the sieve basket to clean the impurities. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The following further describes the present utility model with reference to the drawings.
[0025] Figure 1 is a schematic structural view of the whole of the present utility model from the first perspective;
[0026] Figure 2 is a schematic structural view of the whole of the present utility model from the second perspective;
[0027] Figure 3 is a schematic sectional view of the present utility model;
[0028] Figure 4 is a schematic structural view of the collecting trough of the present utility model;
[0029] Figure 5 For the present utility model Figure 3 the enlarged view at A;
[0030] Figure 6 For the present utility model Figure 3 the enlarged view at B.
[0031] In the figure: 1. Cleaning tank body; 2. Partition board; 3. Collecting trough; 4. Collecting pipe; 5. Motor; 6. Rotating rod; 7. Stirring rod; 8. Rotary joint; 9. Fixed plate; 10. Piston plate; 11. Slide bar; 12. Spring; 13. Cushion plate; 14. Cam; 15. Water suction pipe; 16. Drain pipe; 17. Air outlet pipe; 18. Air inlet pipe; 19. Sieve basket; 20. Piston cylinder; 21. Shunt pipe; 22. Air outlet hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0032] The following further elaborates on the present utility model in conjunction with embodiments:
[0033] Embodiment 1
[0034] As Figures 1-6 shown, the present utility model provides a PCB board electroplating cleaning tank, including a cleaning tank body 1; a partition 2 is fixedly connected between the inner walls of the cleaning tank body 1, and the cleaning tank body 1 is divided into upper and lower chambers by the partition 2. The partition 2 is a filter plate. Two flow components are arranged on one side of the cleaning tank body 1. One of the flow components is used for aerating the water in the water tank. Three flow collecting grooves 3 are arranged at the top of the partition 2, and the three flow collecting grooves 3 are axially symmetrically distributed. The flow components cooperate with the flow collecting grooves 3 to make the water turn directionally; a stirring component is also arranged in the cleaning tank, and the stirring component is used for making the water churn.
[0035] In this embodiment, by arranging the flow components, the water flow inside the cleaning tank body 1 can flow from the central position to the outside (flow components) and flow back upward from both sides, so that the PCB boards placed in the cleaning tank body 1 are continuously washed by the water flow. At the same time, the flow components can be used to aerate the cleaned water to release some gases in the water to the outside, thereby reducing the situation that the cleaning effect decreases due to water pollution during the repeated cleaning process and greatly improving the cleaning effect of water reuse.
[0036] As Figure 3 and Figure 5 shown, preferably, the stirring component includes a rotating rod 6. The rotating rod 6 is rotatably connected between the inner walls of the cleaning tank body 1. A motor 5 is fixedly connected to one side of the cleaning tank body 1. One end of the rotating rod 6 extends to the outside of the cleaning tank body 1 and is connected to the output end of the motor 5 through a pulley and a belt. A plurality of stirring rods 7 are fixedly connected to the outside of the rotating rod 6.
[0037] In this embodiment, by controlling the motor 5 to work, the rotating rod 6 is driven to rotate, and then the stirring rods 7 are flipped to stir the water in the cleaning tank body 1. On the one hand, it is convenient to release some harmful gases or odor gases dissolved in the water during the subsequent cleaning process. At the same time, the churning water body can continuously impact the PCB boards to assist in cleaning.
[0038] As Figure 3 and Figure 5As shown, preferably, the flow component includes a fixing plate 9 fixedly connected to one side of the cleaning tank body 1. A piston cylinder 20 is fixedly connected to one side of the fixing plate 9. A piston plate 10 is slidably connected between the inner walls of the piston cylinder 20. A water suction pipe 15 and a drain pipe 16 are provided on one of the piston cylinders 20, and an air inlet pipe 18 and an air outlet pipe 17 are provided on the other piston cylinder 20. Check valves are provided inside the water suction pipe 15, the drain pipe 16, the air inlet pipe 18, and the air outlet pipe 17. A manifold 4 is fixedly connected to the bottom of the partition plate 2. A plurality of shunt pipes 21 are provided on the manifold 4. One ends of the shunt pipes 21 all extend into the inside of the collecting tank 3. The end of the water suction pipe 15 away from the piston cylinder 20 is communicated with the manifold 4 located at the central position; the drain pipe 16 is communicated with the manifolds 4 located on both sides.
[0039] In this embodiment, the piston plate 10 performs a piston movement; during the process, in cooperation with the check valve, the same effect as that of a piston pump is generated in both piston cylinders 20, so as to continuously pump water from the water suction pipe 15 and discharge it to the drain pipe 16. The water in the cleaning tank body 1 first passes through the sieve basket 19 for filtration, and after filtration, it enters the manifold 4 from the shunt pipe 21, then enters the piston cylinder 20 through the water suction pipe 15, and then is discharged to the collecting tanks 3 located on both sides through the drain pipe 16, so that the water flows from the central position downward and upward from both sides, and the PCB boards placed in the cleaning tank body 1 are continuously washed by the water flow.
[0040] As Figure 3 and Figure 5 shown, preferably, both the rotating rod 6 and the stirring rod 7 are provided as hollow rods, and the inside of the rotating rod 6 is communicated with the inside of the stirring rod 7. A plurality of air outlet holes 22 are opened on the outer side of the stirring rod 7. One end of the rotating rod 6 extends to the outside of the cleaning tank body 1 and is fixedly connected to a rotary joint 8. The end of the air outlet pipe 17 away from the piston cylinder 20 is fixedly connected to the end of the rotary joint 8 away from the rotating rod 6. The air outlet pipe 17 is communicated with the inside of the rotating rod 6 through the rotary joint 8. The air inlet pipe 18 is communicated with the external environment.
[0041] In this embodiment, through the operation of another flow component, air is continuously pumped from the external environment and discharged into the cleaning tank body 1 through the rotary joint 8, the rotating rod 6, and the stirring rod 7, thereby realizing aeration to further release some dissolved gases outward, reducing the influence on subsequent cleaning operations.
[0042] Embodiment 2
[0043] As Figure 3 and Figure 5As shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, a cam 14 is fixedly connected to the outer side of the rotating rod 6, a sliding rod 11 is slidably connected to one side of the fixed plate 9, one end of the sliding rod 11 is fixedly connected to the piston plate 10, the end of the sliding rod 11 away from the piston plate 10 extends to the other side of the fixed plate 9 and is fixedly connected to a backing plate 13, the cam 14 is in contact with the backing plate 13, and a spring 12 is sleeved on the outer side of the sliding rod 11.
[0044] In this embodiment, during the cleaning process, the cam 14 rotates accordingly, and then cooperates with the spring 12 to make both backing plates 13 continuously perform reciprocating motions, and drives the piston plate 10 to perform piston motion through the sliding rod 11.
[0045] As Figure 4 and Figure 6 shown, preferably, a sieve basket 19 is detachably connected to the inside of the manifold 3 located at the central position.
[0046] In this embodiment, the water drawn into from the manifold 3 at the central position will be continuously filtered by the sieve basket 19, so that impurities gather in the sieve basket 19 for easy cleaning.
[0047] Preferably, a filter screen is provided inside the intake pipe 18.
[0048] In this embodiment, it is convenient to filter the air inhaled into the piston cylinder 20 to prevent dust from being inhaled.
[0049] Next, the working principle of this PCB board electroplating cleaning tank will be specifically described.
[0050] As Figures 1-6 shown, water is injected into the cleaning tank body 1, and the motor 5 is controlled to work, driving the rotating rod 6 to rotate, and then the stirring rod 7 rotates to stir the water in the cleaning tank body 1. On the one hand, it is convenient to release some harmful gases or odor gases dissolved in the water during the subsequent cleaning process, and at the same time, the tumbling water body can continuously impact the PCB board to assist in cleaning; during the above cleaning process, the cam 14 rotates accordingly, and then cooperates with the spring 12 to make both backing plates 13 continuously perform reciprocating motions, and drives the piston plate 10 to perform piston motion through the sliding rod 11; during the process, with the cooperation of the check valve, the same effect as that of the piston pump is generated in both piston cylinders 20. Then, on the one hand, water is continuously pumped from the water suction pipe 15 and discharged to the drain pipe 16. The water in the cleaning tank body 1 first passes through the sieve basket 19 for filtration, and after filtration, it enters the manifold pipe 4 through the shunt pipe 21, then enters the piston cylinder 20 after passing through the water suction pipe 15; and then is discharged to the manifolds 3 on both sides through the drain pipe 16, so that the water flows downward from the central position and upward from both sides, and the PCB board placed in the cleaning tank body 1 is continuously washed by the water flow, and the impurities are blocked in the sieve basket 19.
[0051] Meanwhile, another flow component continuously extracts air from the external environment and discharges it into the cleaning tank body 1 through the rotary joint 8, the rotating rod 6, and the stirring rod 7, thereby achieving aeration to further release some dissolved gases to the outside, reducing the impact on subsequent cleaning operations.
[0052] The cleaning tank body 1 is provided with a water outlet pipe with a valve, which is convenient for releasing sewage for water replacement and for taking out the sieve basket 19, so that the particulate impurities can be cleaned.
[0053] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, modifications or improvements made without departing from the spirit of the present utility model are within the protection scope of the present utility model.
Claims
1. A PCB plate electroplating cleaning tank, comprising a cleaning tank body (1); characterized in that: A partition (2) is fixedly connected between the inner walls of the cleaning tank body (1), and the cleaning tank body (1) is divided into two upper and lower chambers by the partition (2). The partition (2) is a filter plate. Two flow components are arranged on one side of the cleaning tank body (1), one of which is used to aerate the water in the tank. Three collecting grooves (3) are arranged on the top of the partition (2). The three collecting grooves (3) are axially symmetrically distributed. The flow components cooperate with the collecting grooves (3) to cause the water to tumble in a directional manner. A stirring component is also arranged in the cleaning tank, and the stirring component is used to cause the water to tumble.
2. A PCB plate electroplating cleaning tank according to claim 1, characterized in that: The stirring component comprises a rotating rod (6), the rotating rod (6) being rotatably connected between the inner walls of the cleaning tank body (1), a motor (5) being fixedly connected to one side of the cleaning tank body (1), one end of the rotating rod (6) extending to the outside of the cleaning tank body (1) and connected to the output end of the motor (5) via a pulley and a belt transmission, and a plurality of stirring rods (7) being fixedly connected to the outside of the rotating rod (6).
3. A PCB plate electroplating cleaning tank according to claim 2, characterized in that: The flow component comprises a fixed plate (9), the fixed plate (9) is fixedly connected to one side of the cleaning tank body (1), a piston cylinder (20) is fixedly connected to one side of the fixed plate (9), a piston plate (10) is slidably connected between the inner walls of the piston cylinder (20), one of the piston cylinders (20) is provided with a water suction pipe (15) and a drainage pipe (16), and the other piston cylinder (20) is provided with an air inlet pipe (18) and an air outlet pipe (17), the water suction pipe (15), One-way valves are provided inside the drainage pipe (16), the air inlet pipe (18) and the air outlet pipe (17); a collecting pipe (4) is fixedly connected to the bottom of the partition (2); a plurality of branch pipes (21) are provided on the collecting pipe (4); one end of each branch pipe (21) extends to the inside of the collecting tank (3); one end of the water pumping pipe (15) away from the piston cylinder (20) is connected to the collecting pipe (4) located at the central position; and the drainage pipe (16) is connected to the collecting pipes (4) located on both sides.
4. A PCB plate electroplating cleaning tank according to claim 3, characterized in that: The rotating rod (6) and the stirring rod (7) are both hollow rods, and the rotating rod (6) is connected to the inside of the stirring rod (7). A plurality of air outlet holes (22) are provided on the outside of the stirring rod (7). One end of the rotating rod (6) extends to the outside of the cleaning tank body (1) and is fixedly connected to a rotating joint (8). An end of the air outlet pipe (17) away from the piston cylinder (20) is fixedly connected to an end of the rotating joint (8) away from the rotating rod (6). The air outlet pipe (17) is connected to the inside of the rotating rod (6) via the rotating joint (8), and the air inlet pipe (18) is connected to the external environment.
5. A PCB plate electroplating cleaning tank according to claim 4, characterized in that: A cam (14) is fixedly connected to the outer side of the rotating rod (6); a sliding rod (11) is slidably connected to one side of the fixed plate (9); one end of the sliding rod (11) is fixedly connected to the piston plate (10); one end of the sliding rod (11) away from the piston plate (10) extends to the other side of the fixed plate (9) and is fixedly connected to a pad (13); the cam (14) is in contact with the pad (13); and a spring (12) is sleeved on the outer side of the sliding rod (11).
6. A PCB plate electroplating cleaning tank according to claim 3, characterized in that: A screen basket (19) is detachably connected to the interior of the collecting tank (3) located at the central position.
7. A PCB plate electroplating cleaning tank according to claim 3, characterized in that: A filter screen is arranged inside the air inlet pipe (18).