Spray cleaning device

Abstract

The utility model discloses a spray cleaning device which comprises a rinsing bath, a skeet line and a cleaning assembly, the cleaning assembly comprises a spray pump, a spray pipe and a plurality of nozzles, the skeet line is arranged in the rinsing bath, the spray pump is connected with the spray pipe, the spray pipe is arranged in the rinsing bath, the plurality of nozzles are arranged on the spray pipe at intervals, and the spray pump, the spray pipe and the nozzles are communicated; the water outlet end of the nozzle faces the skeet line. After the skeet moves to the skeet line arranged in the rinsing bath, the spraying pump works and feeds water to the plurality of nozzles through the spraying pipe, so that the water outlet ends of the plurality of nozzles spray water to the skeet, residual and accumulated electroplating liquid on the skeet is washed off, the phenomena of oxidation and corrosion of a tin coating on a board surface caused by the fact that the electroplating liquid on the skeet drips on the PCB are avoided, and the service life of the PCB is prolonged. The problem that a circuit gap or an open circuit is formed after the PCB is etched is greatly improved, and the rejection rate of products is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electroplating, in particular to a spray cleaning device. Background Art

[0002] The electroplating process of PCB (printed circuit board) is a key link in the electronics manufacturing industry. At present, the electroplating process is usually carried out in an electroplating tank. A flying target assembly is set up on the electroplating tank. The flying target assembly carries the circuit board and moves in the electrolyte in the electroplating tank to complete the electroplating process.

[0003] After electroplating, a large amount of plating solution adheres to the surface and holes of the circuit board. The plating solution itself is usually corrosive. If it is not cleaned thoroughly, it will corrode the plating layer and the circuit board, affecting the quality of the product and resulting in defective products.

[0004] Therefore, a water washing tank is usually set up during the electroplating process to clean the plated circuit boards. However, existing water washing tanks can only clean the board surface of the circuit board and cannot automatically clean the target. The plating solution accumulated on the top of the target during the electroplating process cannot be effectively removed. The plating solution drips onto the tinned board surface, causing oxidation and corrosion of the tin layer on the board surface. After etching, circuit gaps or open circuits will be formed, resulting in product scrapping. Utility Model Content

[0005] The purpose of the utility model is to provide a spray cleaning device to solve the problem that the prior art cannot automatically clean the flying target.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A spray cleaning device includes a water washing tank, a target line and a cleaning component; the cleaning component includes a spray pump, a spray pipe and multiple nozzles, the target line is arranged in the water washing tank, the spray pump is connected to the spray pipe, the spray pipe is arranged in the water washing tank, and multiple nozzles are arranged in the spray pipe at intervals, and the spray pump, the spray pipe and the nozzles are communicated; wherein the water outlet end of the nozzle faces the target line.

[0008] Preferably, the cleaning assembly further includes a first regulating valve, which is arranged on the spray pipe and located between the spray pump and the nozzle.

[0009] Preferably, the cleaning assembly further includes an angle adjuster, the spray pipe is rotatably disposed in the water washing tank, and the angle adjuster is connected to the spray pipe.

[0010] Preferably, the cleaning component further comprises a spray baffle, which is arranged in the water washing tank, and a plurality of nozzles are located in the spray baffle, and the water outlet ends of the nozzles can spray water to the target line.

[0011] Preferably, the cleaning component further includes a return pipe, which is arranged in the water washing tank and connects the water washing tank and the spray pump.

[0012] Preferably, the cleaning component further includes a second regulating valve, which is arranged in the return pipe and located between the water washing tank and the spray pump.

[0013] Preferably, the plurality of nozzles are respectively located on both sides of the target line.

[0014] Preferably, the spray pipe includes a first tube body and a second tube body, one end of the first tube body is connected to the output end of the spray pump, and the other end is connected to the second tube body through an angle adjuster. The second tube body is rotatably set in the water washing tank, and multiple nozzles are arranged at intervals in the second tube body.

[0015] Preferably, the spray baffle is in the shape of an inverted "L".

[0016] Preferably, the cleaning component further comprises a control system, which is electrically connected to the target line and the spray pump.

[0017] The beneficial effect of the present invention is that, compared with the prior art, after the target moves to the target line on the water washing tank, the spray pump works and supplies water to multiple nozzles through the spray pipe, so that the water outlet ends of the multiple nozzles spray water toward the target, washing away the residual and accumulated electroplating liquid on the target, avoiding the oxidation and corrosion of the tin plating layer on the PCB board caused by the electroplating liquid on the target dripping onto the PCB board, greatly improving the problem of circuit gaps or open circuits formed after the PCB board is etched, thereby reducing the product scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a front view of the spray cleaning device in the embodiment;

[0020] Figure 2 A top view of the spray cleaning device in the embodiment;

[0021] Figure 3 A side view of the spray cleaning device in the embodiment;

[0022] Reference numerals:

[0023] 1. Water washing tank; 2. Target line; 3. Cleaning assembly; 31. Spray pump; 32. Spray pipe; 321. First pipe body; 332. Second pipe body; 33. Nozzle; 34. First regulating valve; 35. Angle adjuster; 36. Spray baffle; 37. Return pipe; 38. Second regulating valve. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0025] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] See also Figures 1 to 3 As shown, in this embodiment, a spray cleaning device includes a water washing tank 1, a target line 2 and a cleaning component 3. The water washing tank 1 has side walls and a bottom wall, which enclose a tank body for accommodating cleaning water sprayed by the cleaning component 3. The target line 2 is an existing structure for transporting targets, and a common gantry-type target line is used. The target line 2 is at least partially disposed in the water washing tank 1, and the targets move back and forth on the target line 2. The cleaning component 3 is disposed in the water washing tank 1 and can spray water in the direction of the target line. During operation, after the target on the target line moves to a specified position, the cleaning component 3 starts to work and sprays water toward the target on the target line 2 to clean the target.

[0027] The cleaning assembly 3 includes a spray pump 31, a spray pipe 32 and multiple nozzles 33. The spray pump 31 is connected to the spray pipe 32, and the spray pipe 32 is arranged on the side wall of the water washing tank 1. Multiple nozzles 33 are arranged at intervals on the spray pipe 32. The spray pump 31, the spray pipe 32 and the nozzles 33 are connected. The water outlet end of the nozzle 33 faces the target line 2, and sprays water onto the target for cleaning. In this embodiment, the spray pump 31 is an existing electric water pump and is located outside the water washing tank 1. Of course, the spray pump 31 can also be installed on the side wall of the water washing tank 1. The spray pipe 32 is an existing PP pipe (polypropylene pipe). Other corrosion-resistant water pipes, such as PE pipe (polyethylene pipe), PVC pipe (polyvinyl chloride pipe), HDPE pipe (high-density polyethylene pipe), etc. can also be used. The nozzle 33 uses a clamp-tube fan-shaped PP nozzle, which is convenient for quick installation and replacement. When the spray pump 31 is started, it pumps water into the spray pipe 32 and transports it to the multiple nozzles 33. The nozzles 33 spray water toward the targets on the target line 2, thereby cleaning the targets on the target line 2.

[0028] The spray pipe 32 comprises a first tube 321 and a second tube 322. One end of the first tube 321 is connected to the output of the spray pump 31, and the other end is connected to the second tube 322. The second tube 322 is mounted on the sidewall of the water washing tank 1, and multiple nozzles 33 are spaced apart within the second tube 322. In this embodiment, both the first and second tubes 321 and 322 are constructed of PP (polypropylene) pipes, although other corrosion-resistant pipes may also be used. When the spray pump 31 is activated, water is pumped into the first tube 321, which then transports it to the multiple nozzles 33 in the second tube 322. The nozzles 33 then spray water onto the target line 2, thereby cleaning the targets on the target line 2.

[0029] Specifically, the plurality of nozzles 33 are located on either side of the target line 2, that is, the plurality of nozzles 33 are divided into two groups, with the two groups of nozzles 33 being oppositely distributed on either side of the target line 2. Correspondingly, there are two second tubes 322, each disposed on opposite side walls of the water washing tank 1. The two groups of nozzles 33 are disposed in the two second tubes 322, each communicating with the first tube 321. In this embodiment, the first tube 321 is connected to the two second tubes 322 using a tee joint, which may also be a press-fit tee or a hot-melt tee. During use, the spray pump 31 pumps water into the first tube 321, which then diverts the water to the plurality of nozzles 33 in the two second tubes 322. The plurality of nozzles 33 spray water toward the target line 2, cleaning the targets on the target line 2. This allows simultaneous cleaning of targets on both sides of the target line 2, thereby improving cleaning efficiency.

[0030] Preferably, the cleaning assembly 3 also includes a first regulating valve 34, which is disposed on the first tube 321 and located between the spray pump 31 and the nozzle 33. The first regulating valve 34 is capable of regulating the amount of water delivered from the spray pump 31 to the nozzle 33. In this embodiment, the first regulating valve 34 is a conventional ball valve, which can control the water flow rate by rotating the ball. Furthermore, multiple first regulating valves 34 may be provided, and the first regulating valve 34 may also be disposed on the second tube 322. The spray pump 31 pumps water into the first tube 321, and the first regulating valve 34 regulates the amount of water diverted from the first tube 321 to the multiple nozzles 33 on the second tube 322. The multiple nozzles 33 spray water toward the target line 2, thereby cleaning the targets on the target line 2.

[0031] Preferably, the cleaning assembly 3 further includes an angle adjuster 35 connected to the second tube 322. The second tube 322 is rotatably mounted on the sidewall of the washing tank 1 and is rotatable relative to the first tube 321. When the angle adjuster 35 is rotated by force, it drives the second tube 322 to rotate, and the multiple nozzles 33 on the second tube 322 also rotate, thereby adjusting the spray angle of the nozzles 33 to improve the cleaning effect. In this embodiment, the angle adjuster 35 is a conventional manual knob that can be manually rotated to adjust the angle, which is simple and low-cost. It can also be a handle or a screw adjuster. The spray pump 31 pumps water to the multiple nozzles 33 on the second tube 322. The angle adjuster 35 adjusts the nozzles 33 to a suitable angle, thereby adjusting the spray angle of the nozzles 33 toward the target line 2. This ensures that the water sprayed by the nozzles 33 corresponds to the target area to be cleaned, thereby improving the target cleaning effect and increasing the flexibility of the nozzles 33.

[0032] Preferably, the cleaning assembly 3 further includes a spray baffle 36, which is disposed on the sidewall of the washing tank 1 and shields the nozzles 33 from splashing onto the surrounding area. In practical applications, the second tube 322 and the nozzles 33 are both located inside the spray baffle 36. The outlet of the nozzles 33 can spray water toward the target line 2 to clean the targets on the target line 2. In this embodiment, the spray baffle 36 is made of existing metal materials, but can also be made of plastic, composite materials, or ceramics. The spray baffle 36 is shaped like an inverted "L." The spray pump 31 pumps water to the multiple nozzles 33 on the second tube 322. When the nozzles 33 spray water toward the targets on the target line 2 to clean them, the spray baffle 36 prevents water from splashing onto the outside of the washing tank 1.

[0033] Specifically, the cleaning component 3 also includes a return pipe 37, which is arranged at the bottom of the water washing tank 1, and the return pipe 37 connects the water washing tank 1 and the input end of the spray pump 31; in this embodiment, the return pipe 37 adopts an existing PP pipe (polypropylene pipe), and can also be a PE pipe (polyethylene pipe), PVC pipe (polyvinyl chloride pipe) and other types of water pipes. The return pipe 37 transports the water in the water washing tank 1 to the spray pump 31 to realize water circulation. Specifically, the spray pump 31 can extract water from the water washing tank 1 through the return pipe 37, and then transport it to the multiple nozzles 33 on the second tube body 322. The nozzles 33 spray water toward the targets on the target line 2 for cleaning, and the cleaning water falls into the water washing tank 1 to form a circulation, which greatly saves water.

[0034] Preferably, the cleaning assembly 3 further includes a second regulating valve 38 , which is disposed on the return pipe 37 and located between the water washing tank 1 and the spray pump 31 . The second regulating valve 38 is capable of regulating the amount of water delivered from the return pipe 37 to the spray pump 31 . In this embodiment, the second regulating valve 38 is a conventional ball valve, which can control the flow rate by rotating the ball. When the spray pump 31 draws water from the water washing tank 1 through the return pipe 37 , the second regulating valve 38 can be used to regulate the amount of water delivered from the return pipe 37 to the spray pump 31 .

[0035] Furthermore, the cleaning component 3 also includes a control system, which is electrically connected to the target line 2 and the spray pump 31. When the target enters the target line 2 on the water washing tank 1, the control system receives an electrical signal and starts the spray pump 31. The spray pump 31 draws water from the water washing tank 1 through the return pipe 37, and then transports it to the multiple nozzles 33 on the second tube body 322 through the first tube body 321. The nozzles 33 spray water toward the target on the target line 2 for cleaning; until the target moves out of the target line 2 on the water washing tank 1, the control system receives an electrical signal and turns off the spray pump 31, thereby greatly saving water.

[0036] In another embodiment, the water in the washing tank 1 is discharged through the return pipe 37. In addition to being returned to the spray pump 31, the discharged water can also be directly discharged to the outside as wastewater. Of course, it can also be discharged to the water processor for filtering and then the filtered water is discharged to the spray pump 31. Finally, the spray pump 31 sends the water to the nozzle 33 to form a closed loop.

[0037] During operation, when the target enters the target line 2 of the water washing tank 1, the control system receives an electrical signal and starts the spray pump 31. The spray pump 31 draws water from the water washing tank 1 through the return pipe 37. The spray pump 31 pumps water to the first tube body 321, and then the water is diverted from the first tube body 321 to multiple nozzles 33 on two second tube bodies 322. The angle adjuster 35 can rotate the second tube body 322 to adjust the water spraying angle of the nozzle 33. The nozzle 33 sprays water to the target line 2 to clean the target. After the target moves out of the target line 2 of the water washing tank 1, the control system receives the electrical signal and stops the spray pump 31 to clean the target, while also saving the amount of washing water.

[0038] To summarize, after the target moves to the target line on the washing tank, the spray pump starts working and sends water to multiple nozzles through the spray pipe, so that the water outlets of the multiple nozzles spray water toward the target, washing away the residual and accumulated electroplating liquid on the target, avoiding oxidation and corrosion of the tin plating layer on the PCB board caused by the electroplating liquid on the target dripping onto the PCB board, greatly improving the problem of circuit gaps or open circuits formed after etching the PCB board, thereby reducing the product scrap rate.

[0039] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A spray cleaning device, characterized in that: The invention comprises a water washing tank (1), a target line (2) and a cleaning component (3); the cleaning component (3) comprises a spray pump (31), a spray pipe (32) and a plurality of nozzles (33); the target line (2) is arranged in the water washing tank (1); the spray pump (31) is connected to the spray pipe (32); the spray pipe (32) is arranged in the water washing tank (1); a plurality of nozzles (33) are arranged in the spray pipe (32) at intervals; the spray pump (31), the spray pipe (32) and the nozzles (33) are in communication; wherein the water outlet end of the nozzle (33) faces the target line (2).

2. The spray cleaning device according to claim 1, characterized in that: The cleaning assembly (3) further comprises a first regulating valve (34), wherein the first regulating valve (34) is arranged on the spray pipe (32), and the first regulating valve (34) is located between the spray pump (31) and the nozzle (33).

3. The spray cleaning device according to claim 1, characterized in that: The cleaning assembly (3) further comprises an angle adjuster (35), the spray pipe (32) is rotatably arranged in the water washing tank (1), and the angle adjuster (35) is connected to the spray pipe (32).

4. The spray cleaning device according to claim 1, characterized in that: The cleaning assembly (3) further comprises a spray baffle (36), the spray baffle (36) being arranged in the water washing tank (1), the plurality of nozzles (33) being located in the spray baffle (36), and the water outlet ends of the nozzles (33) being capable of spraying water to the target line (2).

5. The spray cleaning device according to claim 1, characterized in that: The cleaning assembly (3) further comprises a return pipe (37), wherein the return pipe (37) is arranged in the water washing tank (1), and the return pipe (37) is connected to the water washing tank (1) and the spray pump (31).

6. The spray cleaning device according to claim 5, characterized in that: The cleaning assembly (3) further comprises a second regulating valve (38), wherein the second regulating valve (38) is arranged on the return pipe (37), and the second regulating valve (38) is located between the water washing tank (1) and the spray pump (31).

7. The spray cleaning device according to claim 1, characterized in that: The plurality of nozzles (33) are respectively located on both sides of the target line (2).

8. The spray cleaning device according to claim 3, characterized in that: The spray pipe (32) comprises a first tube body (321) and a second tube body (322), one end of the first tube body (321) is connected to the output end of the spray pump (31), and the other end of the first tube body (321) is connected to the second tube body (322) via the angle adjuster (35), the second tube body (322) is rotatably arranged in the water washing tank (1), and a plurality of nozzles (33) are arranged at intervals in the second tube body (322).

9. The spray cleaning device according to claim 4, characterized in that: The spray baffle (36) is in an inverted "L" shape.

10. The spray cleaning device according to any one of claims 1 to 9, characterized in that: The cleaning component (3) further comprises a control system, wherein the control system is electrically connected to the target line (2) and the spray pump (31).

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