A circuit board surface treatment device facilitating cleaning

Abstract

This utility model relates to the field of circuit board surface treatment technology, and discloses a circuit board surface treatment device that is easy to clean. It includes a support frame, a cleaning container, and a spray mechanism mounted on the support frame. The cleaning container has a support rack inside for carrying the circuit board to be treated, and a filter assembly located below the support rack is also mounted inside the cleaning container. Through the design of two spray pipes moving in opposite directions, combined with inclined nozzles, three-dimensional cleaning is achieved, enabling comprehensive cleaning of the circuit board surface without dead angles. Compared with traditional spray heads, this significantly improves the cleaning coverage. Furthermore, the inclined water flow from the nozzles effectively washes away attached impurities. The solvent after cleaning is first filtered by filter plate one to remove particulate impurities, and then by filter plate two to adsorb odors, heavy metals, and organic matter from the solvent, achieving simultaneous treatment of particulate impurities and chemical pollutants.

Description

Technical Field

[0001] This utility model relates to the field of circuit board surface treatment technology, specifically to a circuit board surface treatment device that is easy to clean. Background Technology

[0002] PCB surface treatment refers to the physical, chemical, or electrochemical treatment of the copper layer or pad surface during the PCB manufacturing process to improve its solderability, oxidation resistance, conductivity, and adhesion to other materials, ensuring reliable soldering and long-term stable operation of electronic components.

[0003] A search revealed that patent application number CN202420215185.7 discloses a surface treatment device for polyimide circuit boards, including a base, a clamping mechanism, a dust collection mechanism, and a disc. A support frame and a mounting box are fixedly installed on the top of the base, with the mounting box located inside the support frame. A control panel is fixedly installed on the front left side of the support frame, and a motor is fixedly installed on the inner top side of the support frame. A dust collection mechanism, a water mist nozzle, a fan, and a cleaning device are fixedly installed on the bottom of the disc, with the cleaning device located in front of the dust collection mechanism, water mist nozzle, and fan. The water mist nozzle is located between the dust collection mechanism and the fan. An auxiliary plate is fixedly installed on the top of the mounting box. The clamping mechanism includes a vacuum pump, a first connecting pipe, a second connecting pipe, and a suction cup. This polyimide circuit board surface treatment device facilitates cleaning and drying of circuit boards, effectively removes dust, prevents workers from inhaling dust, and automatically processes circuit boards.

[0004] Traditional circuit board surface treatment devices mostly use fixed nozzles to clean the surface of circuit boards, which creates cleaning dead zones; and the liquid after cleaning is discharged directly without being treated, which can lead to pollution. Therefore, we need to propose a circuit board surface treatment device that is easy to clean. Summary of the Invention

[0005] The purpose of this invention is to provide a circuit board surface treatment device that is easy to clean. Through the design of two spray pipes moving in opposite directions and in conjunction with the inclined nozzles, three-dimensional cleaning is achieved, which can thoroughly clean the circuit board surface without dead corners, and form an inclined water flow to wash the surface of the circuit board, effectively cleaning the attached impurities, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a circuit board surface treatment device that is easy to clean, comprising a support frame, a cleaning container, and a spraying mechanism installed on the support frame. The spraying mechanism is located above the cleaning mechanism. The cleaning container is equipped with a carrying rack for supporting the circuit board to be treated. The cleaning container is also equipped with a filter assembly located below the carrying rack. The spraying mechanism includes a solvent tank mounted on the surface of a support frame and two spray pipes mounted at the bottom of the support frame. The two spray pipes move toward each other. The side walls of the spray pipes are equipped with inclined nozzles. A water pipe is connected between the outlet end of the solvent tank and the spray pipe.

[0007] Preferably, both ends of the rack are connected to a hanging bracket, the hanging bracket is equipped with a handle, and the top of the cleaning container is provided with a slot, into which the hanging bracket is engaged.

[0008] Preferably, the surface matrix of the shelf is provided with multiple sets of receiving slots, and multiple support columns for supporting circuit boards are installed inside the receiving slots. The bottom of the receiving slots is provided with drainage holes for the discharge of cleaning solvent.

[0009] Preferably, the filter assembly includes a filter plate one and a filter plate two. A notch is provided on one side of the filter plate one and one side of the filter plate two. The filter plate one is located above the filter plate two. Multiple supports are installed on the inner wall of the cleaning container. The filter plate one and the filter plate two are both attached to the supports.

[0010] Preferably, the outer wall of the cleaning container has a notch for removing filter plate one and filter plate two, and a cover plate covering the notch is rotatably installed on the outer wall of the cleaning container.

[0011] Preferably, two sets of cylinders are installed on the support frame, and the piston end of the cylinder passes through the support frame and is connected to a connecting plate, and an electric slide rail is installed on the connecting plate.

[0012] Preferably, a fixing sleeve is installed on the slide base of the electric slide rail, and both ends of the spray pipe are inserted and fixed inside the fixing sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model achieves three-dimensional cleaning by using two spray pipes that move towards each other and an inclined nozzle. It can thoroughly clean the surface of the circuit board without dead angles. Compared with traditional nozzles, it greatly improves the cleaning coverage. The nozzles form an inclined water flow that washes the surface of the circuit board, effectively cleaning the attached impurities. 2. Through the design of the filter components, the solvent after cleaning is first filtered by filter plate one to remove particulate impurities, and then by filter plate two to adsorb odors, heavy metals and organic matter in the solvent. This achieves simultaneous treatment of particulate impurities and chemical pollutants, effectively improves the filtration effect of the solvent, and ensures that the cleaning solvent discharge meets the standards or is recycled. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the cleaning container of this utility model; Figure 3 This is a schematic diagram of the spraying mechanism of this utility model.

[0015] In the diagram: 1. Cleaning container; 11. Shelf; 12. Receiving tank; 13. Support column; 14. Drain hole; 15. Hanging rack; 16. Handle; 17. Filter plate one; 18. Filter plate two; 19. Notch; 110. Slot; 111. Bracket; 112. Notch; 113. Cover plate; 2. Support frame; 3. Spraying mechanism; 31. Solvent tank; 32. Water pipe; 33. Spray pipe; 34. Nozzle; 35. Cylinder; 36. Connecting plate; 37. Electric slide rail; 38. Fixing sleeve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3 This utility model provides a technical solution: a circuit board surface treatment device that is easy to clean, including a support frame 2, a cleaning container 1, and a spraying mechanism 3 installed on the support frame 2. The circuit board is placed in the cleaning container 1 for cleaning, and the cleaning liquid is filtered. The spraying mechanism 3 can evenly spray the cleaning solvent onto the surface of the circuit board to clean the circuit board. The spraying mechanism 3 is located above the cleaning mechanism. The cleaning container 1 is equipped with a rack 11 for holding circuit boards to be processed. Multiple circuit boards can be stored on one rack 11, allowing for the cleaning of multiple circuit boards at once, thus ensuring efficient surface treatment. A filter assembly is also installed inside the cleaning container 1, located below the rack 11. This filter assembly removes particulate impurities, odors, heavy metals, and organic matter from the solvent remaining after cleaning the circuit boards. The impurities on the circuit board surface are processing residues.

[0018] The spraying mechanism 3 includes a solvent tank 31 mounted on the surface of the support frame 2 and two spray pipes 33 mounted on the bottom of the support frame 2. The solvent tank 31 is provided with a liquid injection port (not shown in the figure). The type of solvent in the solvent tank 31 can be selected according to the specific situation of the circuit board. Specifically, the solvent can be any one of chlorinated solvent, hydrocarbon solvent, or water-based cleaning agent. The two spray pipes 33 move towards each other. The side wall of the spray pipe 33 is equipped with an inclined nozzle 34, which can spray an inclined water flow to form a certain angle of flushing water flow on the circuit board, thereby improving the cleaning effect. One end of the outlet of the solvent tank 31 is connected to the spray pipe 33 by a water pipe 32. The water pipe 32 includes a rigid pipe section and a flexible pipe section. The rigid pipe section is connected to the outlet of the solvent tank 31 and a water pump is also provided on the rigid pipe section. The flexible pipe section is connected to the spray pipe 33.

[0019] Both ends of the rack 11 are connected to a hanging bracket 15. The rack 11 is hung inside the cleaning container 1 via the hanging bracket 15. A handle 16 is installed on the hanging bracket 15, which allows the rack 11 to be easily picked up. A slot 110 is provided on the top of the cleaning container 1. The hanging bracket 15 is engaged inside the slot 110, so that the rack 11 will not move laterally after being hung in the cleaning container 1.

[0020] The surface of the shelf 11 is provided with multiple sets of receiving slots 12. Multiple support columns 13 for supporting circuit boards are installed inside the receiving slots 12, so that there is a gap between the circuit board and the bottom of the receiving slot 12. The bottom of the receiving slot 12 is provided with a drain hole 14 for the cleaning solvent to be discharged. Some of the solvent for cleaning the circuit board is discharged from the drain hole 14.

[0021] The filter assembly includes a first filter plate 17 and a second filter plate 18. Optionally, the first filter plate 17 is a PP cotton filter plate, and the second filter plate 18 is an activated carbon filter plate. A notch 19 is provided on one side of the first filter plate 17 and the second filter plate 18. The user can easily and effortlessly remove the two filter plates through the notch 19. The first filter plate 17 is located above the second filter plate 18, that is, it first filters particulate impurities in the solvent, and then adsorbs odors, heavy metals and organic matter in the solvent. Multiple L-shaped supports 111 are installed on the inner wall of the cleaning container 1. Four supports 111 are arranged in a matrix, with the top two aligned and the bottom two supports 111 also aligned. The first filter plate 17 and the second filter plate 18 are both attached to the supports 111.

[0022] The outer wall of the cleaning container 1 has a notch 112 for removing filter plate 17 and filter plate 18. A cover plate 113 is rotatably installed on the outer wall of the cleaning container 1 to cover the notch 112, so as to facilitate the replacement of the filter plates.

[0023] Two sets of cylinders 35 are installed on the support frame 2. The piston end of the cylinder 35 passes through the support frame 2 and is connected to a connecting plate 36. An electric slide rail 37 is installed on the connecting plate 36. The cylinder 35 drives the connecting plate 36 to move, and the connecting plate 36 drives the electric slide rail 37 to rise and fall.

[0024] A fixing sleeve 38 is installed on the slide base of the electric slide rail 37. Both ends of the spray pipe 33 are inserted and fixed inside the fixing sleeve 38. The electric slide rail 37 can be raised and lowered to drive the spray pipe 33 to be raised and lowered, so that the spray pipe 33 moves to a suitable distance from the circuit board, ensuring that the sprayed solvent will not splash everywhere after it washes over the circuit board.

[0025] In use, first place the circuit boards one by one in the receiving slots 12 on the rack 11, then place the rack 11 in the cleaning container 1 through the hanger 15, open the cover 113, put the filter plate 17 and the filter plate 18 into the cleaning container 1, then open the cylinder 35 to push the spray pipe 33 down to a suitable height (20-30cm away from the rack 11), so that when the solvent is rinsed onto the circuit board, the solvent will not splash out of the cleaning container 1; Then turn on the water pump and electric slide rail 37. The water pump pumps the cleaning solvent in the solvent tank 31 into the water pipe 32 and delivers it to the spray pipe 33. Then it is sprayed from the nozzle 34 onto the surface of the circuit board to clean the surface of the circuit board. At the same time, the electric slide rail 37 drives the two spray pipes 33 to move towards each other through the fixed sleeve 38. With the cooperation of the inclined nozzle 34, the surface of the circuit board can be cleaned without dead angles. The inclined water flow sprayed out has a good flushing effect on the impurities on the surface of the circuit board. During the cleaning process, the sprayed solvent containing impurities is discharged downward from the drain hole 14. First, it passes through the filter plate 17, which can intercept particulate impurities in the solvent. Then, it passes through the filter plate 18, which can adsorb odors, heavy metals, and organic matter in the solvent, ensuring the cleanliness of the discharged cleaning solution.

[0026] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit board surface treatment device that is easy to clean, characterized in that: Includes a support frame (2), a cleaning container (1), and a spray mechanism (3) installed on the support frame (2). The spray mechanism (3) is located above the cleaning mechanism. The cleaning container (1) is equipped with a carrying rack (11) for carrying the circuit board to be processed. The cleaning container (1) is also equipped with a filter assembly located below the carrying rack (11). The spraying mechanism (3) includes a solvent tank (31) installed on the surface of the support frame (2) and two spray pipes (33) installed at the bottom of the support frame (2). The two spray pipes (33) move towards each other. The side wall of the spray pipe (33) is equipped with an inclined nozzle (34). A water pipe (32) is connected between the outlet end of the solvent tank (31) and the spray pipe (33).

2. The circuit board surface treatment device for easy cleaning according to claim 1, characterized in that: Both ends of the rack (11) are connected to a hanging bracket (15), and a handle (16) is installed on the hanging bracket (15). The top of the cleaning container (1) is provided with a slot (110), and the hanging bracket (15) is engaged inside the slot (110).

3. The circuit board surface treatment device for easy cleaning according to claim 1, characterized in that: The surface matrix of the shelf (11) is provided with multiple sets of receiving slots (12), and multiple support columns (13) for supporting circuit boards are installed inside the receiving slots (12). The bottom of the receiving slots (12) is provided with a drain hole (14) for the cleaning solvent to be discharged.

4. The circuit board surface treatment device for easy cleaning according to claim 1, characterized in that: The filter assembly includes a filter plate one (17) and a filter plate two (18). A notch (19) is provided on one side of the filter plate one (17) and one side of the filter plate two (18). The filter plate one (17) is located above the filter plate two (18). Multiple supports (111) are installed on the inner wall of the cleaning container (1). The filter plate one (17) and the filter plate two (18) are both attached to the supports (111).

5. The circuit board surface treatment device for easy cleaning according to claim 1, characterized in that: The outer wall of the cleaning container (1) has a notch (112) for removing filter plate one (17) and filter plate two (18), and a cover plate (113) covering the notch (112) is rotatably installed on the outer wall of the cleaning container (1).

6. The circuit board surface treatment device for easy cleaning according to claim 1, characterized in that: Two sets of cylinders (35) are installed on the support frame (2). The piston end of the cylinder (35) passes through the support frame (2) and is connected to a connecting plate (36). An electric slide rail (37) is installed on the connecting plate (36).

7. The circuit board surface treatment device for easy cleaning according to claim 6, characterized in that: The electric slide rail (37) has a fixed sleeve (38) installed on its slide base, and both ends of the spray pipe (33) are inserted and fixed inside the fixed sleeve (38).

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