Circuit board surface defect detection device

Abstract

The utility model discloses a circuit board surface defect detection device which comprises a conveyor, a cleaning box is fixedly arranged in the middle of the top end of the conveyor, and a shaft rod is rotatably arranged at one end in the cleaning box. According to the circuit board cleaning device, the surface of a circuit board can be cleaned conveniently and preliminarily, then a first fan is powered on to generate wind energy, the wind energy is guided into a connecting pipe through an air outlet pipe and then sprayed out through a plurality of spray heads, dust and foreign matter attached to the surface of the circuit board can be cleaned conveniently, and meanwhile air in a dust collection box is pumped out through a second fan; the negative pressure is generated in the dust collection box, the negative pressure is generated in the air inlet pipe and the dust collection cover, air doped with dust and foreign matter is absorbed through the dust collection cover, and the situation that the dust and the foreign matter are attached to the surface of the circuit board, and then the subsequent detection result is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of circuit board surface defect detection technology, specifically a circuit board surface defect detection device. Background Technology

[0002] During the processing of circuit boards, it is usually necessary to use a circuit board surface defect detection device to inspect the surface of the circuit board in order to determine whether the circuit board is a good product. However, existing circuit board surface defect detection devices are not convenient to clean the surface of the circuit board before monitoring, resulting in dust and foreign objects adhering to the surface of the circuit board, which affects the subsequent test results.

[0003] To address the aforementioned issues, a circuit board surface defect detection device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a circuit board surface defect detection device to solve the problem mentioned in the background art that the existing circuit board surface defect detection devices are not convenient to clean the surface of the circuit board before monitoring, resulting in dust and foreign matter adhering to the surface of the circuit board, which affects the subsequent detection results.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circuit board surface defect detection device, comprising a conveyor, a cleaning box fixedly installed at the middle of the top of the conveyor, a shaft rotatably installed at one end inside the cleaning box, a plurality of cleaning brushes fixedly installed on the surface of the shaft, a first fan fixedly installed at the top of the cleaning box, an air outlet pipe fixedly connected to the air outlet end of the first fan, a connecting pipe fixedly connected to the end of the air outlet pipe away from the first fan, a plurality of nozzles fixedly connected to the bottom end of the connecting pipe, a dust collection box fixedly installed at the top of one side of the cleaning box, an air inlet pipe fixedly connected to the connection between the dust collection box and the cleaning box, an air inlet pipe fixedly connected to the end of the air inlet pipe away from the dust collection box, a dust collection hood fixedly connected to the end of the air inlet pipe away from the dust collection box, a second fan fixedly installed on the side of the dust collection box away from the cleaning box, a second filter fixedly connected to the air inlet end of the second fan, and the second filter fixedly connected to the end of the second fan.

[0006] The motor drives the shaft to rotate, which in turn drives several cleaning brushes to rotate, thus facilitating the initial cleaning of the circuit board surface. Then, the first fan is powered to generate air energy, which is guided through the air outlet pipe into the connecting pipe, and then sprayed out through several nozzles, thus facilitating the cleaning of dust and foreign objects adhering to the circuit board surface. At the same time, the second fan extracts air from the dust collection box, creating negative pressure inside the dust collection box. This negative pressure is also created in the air inlet pipe and the dust collection hood. The dust collection hood absorbs the air mixed with dust and foreign objects, preventing dust and foreign objects from adhering to the circuit board surface and affecting subsequent test results.

[0007] Preferably, the air inlet of the first fan is fixedly connected to a first filter, which facilitates the filtration of the gas entering the first fan.

[0008] Preferably, a filter screen is fixedly installed on the top of the inner side of the dust collection box, which facilitates the filtration of dust and foreign objects.

[0009] Preferably, a second through slot is provided at the bottom of both sides of the cleaning box, and the two second through slots facilitate the entry and exit of the circuit board into and out of the cleaning box.

[0010] Preferably, a testing box is fixedly installed on one side of the top of the conveyor, and a first through slot is opened at the bottom of both sides of the testing box. The two first through slots facilitate the entry and exit of the circuit board into the testing box. Preferably, a motor is fixedly installed on one side of the cleaning box, and the output end of the motor extends into the interior of the cleaning box and is fixedly connected to one end of the shaft. The motor drives the shaft to rotate, which in turn drives several cleaning brushes to rotate, thereby facilitating the initial cleaning of the surface of the circuit board.

[0011] Preferably, a collection box is provided at the bottom of the inner side of the dust collection box, which facilitates the collection of dust and foreign objects.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The motor drives the shaft to rotate, which in turn drives several cleaning brushes to rotate, thus facilitating the initial cleaning of the circuit board surface. Then, the first fan is powered to generate air energy, which is guided through the air outlet pipe into the connecting pipe, and then sprayed out through several nozzles, thus facilitating the cleaning of dust and foreign objects adhering to the circuit board surface. At the same time, the second fan extracts air from the dust collection box, creating negative pressure inside the dust collection box. This negative pressure is also created in the air inlet pipe and the dust collection hood. The dust collection hood absorbs the air mixed with dust and foreign objects, preventing dust and foreign objects from adhering to the circuit board surface and affecting subsequent test results. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a front sectional view of the present invention;

[0016] Figure 3 This is a side sectional view of the cleaning box of this utility model;

[0017] Figure 4 This is an enlarged cross-sectional view of the dust collection box of this utility model.

[0018] In the diagram: 1. Conveyor; 2. Cleaning box; 3. Testing box; 4. First fan; 5. Air outlet pipe; 6. Connecting pipe; 7. Nozzle; 8. First filter; 9. Dust collection box; 10. Shaft; 11. Cleaning brush; 12. Motor; 13. Filter screen; 14. Second fan; 15. Second filter; 16. Collection box; 17. Air inlet pipe; 18. Dust collection hood; 19. First channel; 20. Second channel. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please see Figure 1-4 This utility model provides a circuit board surface defect detection device, including a conveyor 1, a cleaning box 2 fixedly installed at the middle of the top of the conveyor 1, a shaft 10 rotatably installed at one end inside the cleaning box 2, a plurality of cleaning brushes 11 fixedly installed on the surface of the shaft 10, a first fan 4 fixedly installed at the top of the cleaning box 2, an air outlet pipe 5 fixedly connected to the air outlet end of the first fan 4, a connecting pipe 6 fixedly connected to the interior of the cleaning box 2 at the end away from the first fan 4, a plurality of nozzles 7 fixedly connected to the bottom end of the connecting pipe 6, a dust collection box 9 fixedly installed at the top of one side of the cleaning box 2, an air inlet pipe 17 fixedly connected to the connection between the dust collection box 9 and the cleaning box 2, an air inlet pipe 17 fixedly connected to the end of the air inlet pipe 17 away from the dust collection box 9, a dust collection hood 18 fixedly connected to the interior of the cleaning box 2 at the end away from the dust collection box 9, and a dust collection hood 18 fixedly connected to the dust collection box 9 away from the cleaning box 2. A second fan 14 is fixedly installed on one side. The air inlet of the second fan 14 extends into the dust collection box 9 and is fixedly connected to a second filter 15. The motor 12 drives the shaft 10 to rotate, which in turn drives several cleaning brushes 11 to rotate, thus facilitating the initial cleaning of the circuit board surface. Then, the first fan 4 is powered to generate air energy, which is introduced into the connecting pipe 6 through the air outlet pipe 5 and then sprayed out through several nozzles 7, thus facilitating the cleaning of dust and foreign objects attached to the circuit board surface. At the same time, the second fan 14 draws air out of the dust collection box 9, creating a negative pressure inside the dust collection box 9. This creates a negative pressure inside both the air inlet pipe 17 and the dust collection hood 18. The dust collection hood 18 absorbs the air mixed with dust and foreign objects, preventing dust and foreign objects from adhering to the circuit board surface and affecting subsequent test results.

[0021] The first air inlet of the first fan 4 is fixedly connected to the first filter 8, the top of the inner side of the dust collection box 9 is fixedly provided with a filter screen 13, and the bottom of both sides of the cleaning box 2 is provided with a second through groove 20.

[0022] In use, the first filter 8 facilitates the filtration of the gas entering the first fan 4, the filter screen 13 facilitates the filtration of dust and foreign objects, and the two second passages 20 facilitate the entry and exit of the circuit board into the cleaning box 2.

[0023] A detection box 3 is fixedly installed on one side of the top of the conveyor 1. The bottom of both sides of the detection box 3 is provided with a first through groove 19. A motor 12 is fixedly installed on one side of the cleaning box 2. The output end of the motor 12 extends into the interior of the cleaning box 2 and is fixedly connected to one end of the shaft 10. A collection box 16 is provided at the bottom of the inner side of the dust collection box 9.

[0024] In use, the two first through slots 19 facilitate the entry and exit of the circuit board into the test box 3. The motor 12 drives the shaft 10 to rotate, which in turn drives several cleaning brushes 11 to rotate, thus facilitating the initial cleaning of the circuit board surface. The collection box 16 facilitates the collection of dust and foreign objects.

[0025] In this embodiment, the circuit board is transported by conveyor 1. After the circuit board enters the cleaning box 2, the motor 12 drives the shaft 10 to rotate, which in turn drives several cleaning brushes 11 to rotate, thus facilitating the initial cleaning of the circuit board surface. Then, the first fan 4 is powered to generate air energy, which is introduced into the connecting pipe 6 through the air outlet pipe 5 and then sprayed out through several nozzles 7, thus facilitating the cleaning of dust and foreign objects attached to the circuit board surface. At the same time, the second fan 14 extracts air from the dust collection box 9, creating a negative pressure in the dust collection box 9, which in turn creates a negative pressure in both the air inlet pipe 17 and the dust collection hood 18. The dust collection hood 18 absorbs the air mixed with dust and foreign objects, preventing dust and foreign objects from adhering to the circuit board surface and affecting the subsequent test results.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A circuit board surface defect detection apparatus comprising a conveyor (1), characterized by: The middle part of the top end of the conveyor (1) is fixedly provided with a cleaning box (2), one end of the inside of the cleaning box (2) is rotatably provided with a shaft rod (10), the surface of the shaft rod (10) is fixedly provided with a plurality of cleaning brushes (11), the top end of the cleaning box (2) is fixedly installed with a first fan (4), the air outlet end of the first fan (4) is fixedly communicated with an air outlet pipe (5), the end of the air outlet pipe (5) away from the first fan (4) is fixedly communicated with a connecting pipe (6) extending to the inside of the cleaning box (2), the bottom end of the connecting pipe (6) is fixedly communicated with a plurality of spray heads (7), the top of one side of the cleaning box (2) is fixedly provided with a dust collecting box (9), the connecting part of the dust collecting box (9) and the cleaning box (2) is fixedly communicated with an air inlet pipe (17), the end of the air inlet pipe (17) away from the dust collecting box (9) is fixedly communicated with a dust collecting cover (18) extending to the inside of the cleaning box (2), the side of the dust collecting box (9) away from the cleaning box (2) is fixedly installed with a second fan (14), the air inlet end of the second fan (14) is fixedly communicated with a second filter (15) extending to the inside of the dust collecting box (9).

2. The circuit board surface defect inspection apparatus according to claim 1, characterized by: The air inlet end of the first fan (4) is fixedly communicated with a first filter (8).

3. The circuit board surface defect inspection apparatus according to claim 1, characterized by: The top of the inside of the dust collecting box (9) is fixedly provided with a filter screen (13).

4. The circuit board surface defect inspection apparatus according to claim 1, characterized by: The bottom of each side of the cleaning box (2) is provided with a second through groove (20).

5. The apparatus of claim 1, wherein: The side of the top end of the conveyor (1) is fixedly provided with a detection box (3), the bottom of each side of the detection box (3) is provided with a first through groove (19).

6. The apparatus of claim 1, wherein: The side of the cleaning box (2) is fixedly installed with a motor (12), the output end of the motor (12) is fixedly connected with one end of the shaft rod (10) extending to the inside of the cleaning box (2).

7. The apparatus of claim 1, wherein: The bottom of the inside of the dust collecting box (9) is provided with a collecting box (16).

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