Circuit board surface treatment equipment

Abstract

The utility model discloses circuit board surface treatment equipment, which belongs to the field of circuit board surface treatment and comprises a circuit board treatment seat, a cleaning component and a dust treatment component are arranged on the circuit board treatment seat, the cleaning component comprises a cleaning air pump fixed on the circuit board treatment seat, and the cleaning air pump is fixedly communicated with a cleaning roller through an air delivery pipe. And the cleaning roller is communicated with an exhaust nozzle. The dust treatment assembly and the cleaning assembly are matched, wetted cloth is in contact with a circuit board, a conductive loop can be formed in combination with the metal recovery box, surface static electricity is effectively released, the electrostatic effect is eliminated, and secondary after-tack of dust after dust removal is prevented; according to the circuit board surface treatment device, gas mechanics, material engineering and electromechanical detection technologies are integrated, and the technical effects of improving the circuit board surface treatment cleanliness, optimizing the process and controlling the quality are achieved from the three aspects of dust removal and dehumidification, anti-static treatment and detection implementation.

Description

Technical Field

[0001] This utility model relates to the field of circuit board surface treatment technology, and in particular to a circuit board surface treatment device. Background Technology

[0002] With the continuous development of circuit integration technology, circuit boards, as important electronic components in circuit integration, serve as the carrier and support for the electrical connections of electronic components. During the circuit board manufacturing process, their surfaces typically require cleaning to avoid degrading their performance and product quality.

[0003] Circuit board surfaces are often cleaned using traditional air-blowing cleaning machines. However, friction occurs when the circuit board is handled and placed on the conveyor belt, causing static electricity to form on the surface. This increases the adhesion of dust and other impurities, causing the dust blown out by the cleaning machine to re-adhere to the circuit board surface. This reduces the cleaning effect of the circuit board surface and hinders the subsequent electroplating and etching processes, thus reducing the quality of the finished circuit board.

[0004] Therefore, a circuit board surface treatment device is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problem that traditional air-blowing cleaning machines often cause static electricity to form on the surface of circuit boards during the process of handling them on the conveyor belt. This static electricity increases the adhesion of dust and other impurities, causing the dust blown out by the cleaning machine to re-adhere to the surface of the circuit board. This reduces the cleaning effect and hinders the subsequent electroplating and etching processes. Therefore, this invention proposes a circuit board surface treatment device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A circuit board surface treatment device includes a circuit board treatment seat located above a conveyor belt. The circuit board treatment seat is provided with a cleaning component and a dust treatment component. The cleaning component includes a cleaning air pump fixed on the circuit board treatment seat. The cleaning air pump is fixedly connected to a cleaning roller through an air supply pipe. An exhaust nozzle is connected to the cleaning roller.

[0008] The dust treatment assembly includes a wet treatment box located on one side of the cleaning assembly. The interior of the wet treatment box is connected to an atomizing nozzle. The wet treatment box is rotatably connected to an atomizing cloth tube via a rotating shaft. A recycling box is provided above the wet treatment box, and a recycling roller is clamped to the recycling box via a drive shaft.

[0009] Preferably, the exhaust nozzles are inclinedly disposed on the cleaning roller and are distributed in a rotationally symmetrical manner.

[0010] Preferably, a drive wheel is fixed on the cleaning roller, and the drive wheel is connected to the drive shaft via a drive belt.

[0011] Preferably, a deflector roller is fixedly installed on the side of the wet treatment tank near the cleaning drum, and the height of the deflector roller is lower than that of the rotating shaft.

[0012] Preferably, the cleaning roller is further provided with a surface detection block, the cleaning roller is provided with an air pressure detector, and the cleaning roller is provided with a limiting groove that is slidably connected to the surface detection block.

[0013] Preferably, the cleaning roller has a detection chamber inside, a detection air valve is provided on the cleaning roller, the surface detection block is slidably connected to the detection chamber through a detection plug, and a detection end of a pressure detector is provided inside the detection chamber.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By combining the dust handling component and the cleaning component, when the circuit board passes through the turning roller, the wetted cloth comes into contact with the circuit board and forms a conductive circuit with the metal recycling box, effectively releasing surface static electricity, eliminating the static effect, and preventing dust from sticking back after dust removal, thereby improving the ability to clean dust from the surface of the circuit board.

[0016] 2. By combining dust handling components, cleaning components, and air pressure detectors, the technology integrates gas mechanics, materials engineering, and electromechanical testing. It achieves a three-in-one technical effect of improving the cleanliness of circuit board surface treatment, optimizing processes, and controlling quality from three aspects: dust removal and dehumidification, anti-static treatment, and implementation testing. This simplifies the production line layout, reduces equipment maintenance costs, and solves the problems of moisture residue, electrostatic adsorption, and missed defect detection in traditional processes. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a circuit board surface treatment device proposed in this utility model;

[0018] Figure 2 This is an exploded view of the overall structure of a circuit board surface treatment device proposed in this utility model.

[0019] Figure 3 This is an exploded view of the overall structure of a circuit board surface treatment device proposed in this utility model.

[0020] Figure 4 This is an exploded view of the structure of the cleaning roller and surface inspection block in a circuit board surface treatment device proposed in this utility model;

[0021] Figure 5This is a schematic diagram of the internal structure of the cleaning roller in a circuit board surface treatment device proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the atomizing nozzle in a circuit board surface treatment device proposed in this utility model.

[0023] In the diagram: 1. Circuit board processing seat; 2. Cleaning air pump; 21. Cleaning roller; 211. Drive wheel; 212. Drive belt; 22. Exhaust nozzle; 3. Wet treatment box; 31. Atomizing nozzle; 32. Rotating shaft; 33. Atomizing cloth tube; 34. Recycling box; 35. Drive shaft; 351. Recycling roller; 36. Turning roller; 4. Surface detection block; 41. Detection stopper. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-6 A circuit board surface treatment device includes a circuit board treatment seat 1 located above a conveyor belt, and a cleaning component and a dust treatment component are provided on the circuit board treatment seat 1.

[0026] It should be noted that when using an air-blowing cleaning machine to treat the surface of a circuit board, the dust on the circuit board itself will be scattered in the treatment space and attracted by the static electricity of the circuit board, and will stick back to the surface of the circuit board, thus reducing the cleaning ability.

[0027] Based on the above, when the circuit board passes through the circuit board processing seat 1, it is above the conveyor belt and moves forward with it. This is the existing circuit board conveying technology, which will not be described in detail later.

[0028] like Figure 2 and Figure 3 As shown, the cleaning assembly includes a cleaning air pump 2 fixed on the circuit board processing base 1, the cleaning air pump 2 is fixedly connected to a cleaning roller 21 through an air supply pipe, and an exhaust nozzle 22 is connected to the cleaning roller 21.

[0029] Furthermore, the exhaust nozzles 22 are inclinedly arranged on the cleaning roller 21 and are distributed in a rotationally symmetrical manner. A transmission wheel 211 is fixed on the cleaning roller 21, and the transmission wheel 211 is connected to the transmission shaft 35 through the transmission belt 212.

[0030] It should be noted that when the cleaning air pump 2 delivers gas to the cleaning roller 21 through the air supply pipe, the gas will be sprayed onto the circuit board surface through the exhaust nozzle 22. Under the reverse force of the gas, the cleaning roller 21 will rotate in the opposite direction. Thus, while the exhaust nozzle 22 cleans the circuit board surface, it provides power for the subsequent dust treatment process and surface inspection process, so that no additional power is required, thus achieving the effect of saving energy.

[0031] The further advantage of the above is that when the exhaust nozzle 22 sprays gas and drives the cleaning roller 21 to rotate downwards, it will generate a large air force on the circuit board below the cleaning roller 21. The gas sprayed by the other exhaust nozzles 22 on the side near the dust treatment component will blow away the circuit board further away, accelerate the evaporation of moisture on the surface of the circuit board, and prevent impurities from adhering to the surface of the circuit board due to moisture, which is not easy to clean. This improves the cleaning ability of the exhaust nozzle 22 on the circuit board.

[0032] like Figure 3 and Figure 6 As shown, the dust treatment component includes a wet treatment box 3 located on one side of the cleaning component. The interior of the wet treatment box 3 is connected to an atomizing nozzle 31. The wet treatment box 3 is rotatably connected to an atomizing cloth cylinder 33 via a rotating shaft 32. A recycling box 34 is provided above the wet treatment box 3, and a recycling roller 351 is engaged with the recycling box 34 via a drive shaft 35.

[0033] Furthermore, a deflector roller 36 is fixedly installed on the side of the wet treatment box 3 near the cleaning roller 21, and the height of the deflector roller 36 is lower than that of the rotating shaft 32.

[0034] It should be noted that the atomizing nozzle 31 is positioned above the atomizing cloth cylinder 33 where the cloth is unwound, so that the water vapor can gradually wet the cloth facing the circuit board, preventing the atomized water droplets from dripping directly onto the circuit board. At the same time, the wet cloth is turned by the turning roller 36, reducing the travel height, so that the wet cloth can contact the surface of the circuit board in advance and release the static electricity carried on its surface through the recycling box 34 made of metal material, so that after the dust removal by blowing, the dust will not re-adhere due to the static electricity.

[0035] Based on the above, the cloth wound on the atomizing cloth cylinder 33 is made of a hydrophilic material, which can retain the water vapor sprayed out by the atomizing nozzle 31. This allows it to adsorb dust in the air when the cleaning roller 21 blows out airflow to clean the dust on the surface of the circuit board, thus preventing dust in the air from remaining in the working environment and adhering to the surface of the circuit board after dust removal, thereby reducing the dust removal effect on the surface of the circuit board.

[0036] Based on the above, after the atomizing cloth cylinder 33 unwinds the cloth onto the recovery roller 351, it can be replaced after the winding is completed. After the cloth is recovered on the recovery roller 351 to a certain thickness, it can be removed and the cloth can be washed and dried using existing rinsing equipment. This will prevent the waste of cloth and environmental pollution and achieve the effect of recycling.

[0037] A further advantage of the above is that by pressing the cloth wound on the atomizing cloth cylinder 33 down by the turning roller 36, the cloth can come into contact with the surface of the circuit board, wet it and remove static electricity, and at the same time, it can also initially remove dust from the surface of the circuit board.

[0038] like Figure 5 As shown, a surface detection block 4 is also provided on the cleaning roller 21, an air pressure detector is provided inside the cleaning roller 21, and a limiting groove is provided on the cleaning roller 21 that is slidably connected to the surface detection block 4.

[0039] Furthermore, a detection chamber is provided inside the cleaning roller 21, and a detection air valve is provided on the cleaning roller 21. The surface detection block 4 is slidably connected to the detection chamber through the detection slide plug 41, and the detection end of the air pressure detector is provided inside the detection chamber.

[0040] It should be noted that during the board manufacturing process, burrs may appear on the surface of the circuit board due to the poor cutting effect of the shearing tool. This can lead to problems such as weakened signal transmission strength, reduced transmission distance, easy signal interference, reduced mechanical strength, and easy detachment of the finished circuit board.

[0041] Based on the above, while the cleaning roller 21 is rotating, it can drive the surface detection block 4 to pass over the circuit board. When burrs appear on the circuit board, it will squeeze the surface detection block 4 to slide inward, causing the air pressure in the detection chamber to change. This is detected by the air pressure detector, thus reminding the staff to promptly find that the circuit board has burrs, which will affect the quality of subsequent finished products, and to remove them in time.

[0042] The further advantage of the above is that: before operation, the detection chamber is injected with gas of rated pressure through the detection air valve, and the detection slide 41 is squeezed outward to the limiting groove opened on the cleaning roller 21 to provide support for the surface detection block 4.

[0043] Based on the above, the surface detection block 4 is made of lightweight material and is evenly and rotationally symmetrically distributed on the cleaning roller 21. During its rotation with the cleaning roller 21, the air pressure in the air detection chamber will not change.

[0044] Working principle:

[0045] When this utility model is in use, the cleaning air pump 2 delivers gas to the cleaning roller 21 through the air supply pipe. When the gas is sprayed onto the surface of the circuit board through the exhaust nozzle 22, it will drive the cleaning roller 21 to rotate in the opposite direction under the reverse force of the gas, thereby cleaning the surface of the circuit board through the exhaust nozzle 22.

[0046] When the exhaust nozzle 22 sprays gas and drives the cleaning roller 21 to rotate downwards, it will generate a large wind force on the circuit board below the cleaning roller 21. The gas sprayed by the other exhaust nozzles 22 on the side near the dust treatment component will blow away the circuit board further away, accelerate the evaporation of moisture on the surface of the circuit board, and prevent impurities from adhering to the surface of the circuit board due to moisture, which is not easy to clean. This improves the cleaning ability of the exhaust nozzle 22 on the circuit board.

[0047] Furthermore, the atomizing nozzle 31 is positioned above the atomizing cloth cylinder 33 where the cloth is unwound, allowing the water vapor to gradually wet the cloth facing the circuit board, preventing the atomized water droplets from dripping directly onto the circuit board. At the same time, the wet cloth is folded by the turning roller 36, reducing the travel height, allowing the wet cloth to contact the surface of the circuit board in advance and release the static electricity carried on its surface through the recycling box 34 made of metal material, so that after the dust removal by blowing, the dust will not re-adhere due to the static electricity carried.

[0048] Based on the above, while the cleaning roller 21 is rotating, it drives the surface detection block 4 to pass over the circuit board. When burrs appear on the circuit board, the surface detection block 4 will be squeezed and slid inward, causing the air pressure in the detection chamber to change. This is detected by the air pressure detector, thus reminding the staff to promptly find that the circuit board has burrs, which will affect the quality of subsequent finished products, and to remove them in time.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A circuit board surface treatment device, comprising a circuit board processing seat (1) located above a conveyor belt, characterized in that, The circuit board processing base (1) is provided with a cleaning component and a dust treatment component. The cleaning component includes a cleaning air pump (2) fixed on the circuit board processing base (1). The cleaning air pump (2) is fixedly connected to a cleaning roller (21) through an air supply pipe. An exhaust nozzle (22) is connected to the cleaning roller (21). The dust treatment assembly includes a wet treatment box (3) located on one side of the cleaning assembly. The interior of the wet treatment box (3) is connected to an atomizing nozzle (31). The wet treatment box (3) is rotatably connected to an atomizing cloth tube (33) via a rotating shaft (32). A recycling box (34) is provided above the wet treatment box (3), and a recycling roller (351) is engaged with the recycling box (34) via a drive shaft (35).

2. The circuit board surface treatment equipment according to claim 1, characterized in that, The exhaust nozzles (22) are inclinedly arranged on the cleaning roller (21) and are distributed in a rotationally symmetrical manner.

3. The circuit board surface treatment equipment according to claim 1, characterized in that, A drive wheel (211) is fixed on the cleaning roller (21), and the drive wheel (211) is connected to the drive shaft (35) via a drive belt (212).

4. The circuit board surface treatment equipment according to claim 1, characterized in that, A turning roller (36) is fixedly installed on the side of the wet treatment box (3) near the cleaning roller (21), and the turning roller (36) is set at a height lower than the rotating shaft (32).

5. The circuit board surface treatment equipment according to claim 1, characterized in that, The cleaning roller (21) is also provided with a surface detection block (4), and a pressure detector is provided inside the cleaning roller (21). A limiting groove is provided on the cleaning roller (21) that is slidably connected to the surface detection block (4).

6. The circuit board surface treatment equipment according to claim 5, characterized in that, The cleaning roller (21) has a detection chamber inside, and a detection air valve is provided on the cleaning roller (21). The surface detection block (4) is slidably connected to the detection chamber through a detection slide plug (41). The detection chamber is provided with the detection end of a pressure detector.

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