An electronic grade glass fiber cloth material inspection device

By using LED lights and a binocular camera in the fiberglass cloth inspection device, combined with head posture detection, the problems of small detection range and high missed detection rate in the existing technology have been solved, achieving efficient and accurate cloth inspection.

CN224313936UActive Publication Date: 2026-06-02LEDING ELECTROMECHANICAL TECH NANTONG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LEDING ELECTROMECHANICAL TECH NANTONG CO LTD
Filing Date
2025-07-24
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing technologies, the inspection of electronic-grade fiberglass cloth relies on manual visual inspection and automated optical inspection. This has problems such as limited illumination range, small observable area of ​​the cloth, and easy omissions during manual inspection, which affects product quality control, especially under high production pace.

Method used

An electronic fiberglass cloth inspection device was designed. An LED lampshade is placed over the entire vertical section of the fiberglass cloth. Combined with a binocular camera and a microcontroller, the device controls the movement of the cloth by detecting the head posture of the operator, ensuring comprehensive inspection.

Benefits of technology

The increased illumination area of ​​the LED lights reduced the probability of missed inspections, ensuring the factory quality of the fiberglass cloth and preventing missed inspections caused by a head-down posture.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of fiberglass cloth production technology, specifically an electronic-grade fiberglass cloth inspection device. It includes a housing, a transmission roller assembly, an LED light, a dust collection device, and a binocular camera. A transparent plate is mounted on the front of the housing. A base is located below the housing, with mounting side plates at both ends. The housing is mounted between these side plates. The transmission roller assembly includes a guide roller and two first clamping rollers, which are rotatably mounted on the upper and lower parts of the inner side of the housing, respectively. The first clamping rollers are rotatably mounted on the upper part of the inner side of the housing. The LED light is mounted on the upper part of the inner side of the housing, with its light source pointing towards the bottom of the inner side of the housing. The dust collection device is mounted on the housing. The binocular camera is mounted on the front of the housing. This technical solution significantly reduces the probability of missed inspections by increasing the fabric display range and linking head posture with fabric movement.
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Description

Technical Field

[0001] This utility model relates to the field of fiberglass cloth production technology, and in particular to an electronic-grade fiberglass cloth inspection device. Background Technology

[0002] Electronic-grade fiberglass cloth is a key substrate in the manufacture of printed circuit boards (PCBs), and its quality directly affects the performance of the PCBs. Fabric inspection equipment is used to detect defects in the fiberglass cloth (such as broken yarns, stains, holes, uneven thickness, etc.) to ensure it meets the requirements of high-precision electronic applications.

[0003] Currently, the inspection of electronic-grade fiberglass cloth mainly relies on manual visual inspection and automated optical inspection (AOI) systems. Manual inspection typically involves operators observing the fabric surface under specific lighting conditions; however, this method has the following problems: limited illumination range, resulting in a small observable area of ​​the fabric; traditional inspection devices usually use fixed light sources (such as LED strip lights or point light sources), which have a narrow illumination range, covering only a localized area of ​​the fabric surface; manual inspection is prone to missed defects, especially when the fabric is continuously moving. During production line operation, fiberglass cloth is usually continuously conveyed at a certain speed. When operators are focused on inspecting a particular area, the movement of the fabric may cause defects in other areas to be overlooked. Especially under high production rates, the missed rate of manual inspection is high, affecting product quality control. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing an electronic-grade fiberglass cloth inspection device.

[0005] The technical solution of this utility model is an electronic-grade fiberglass cloth inspection device, comprising:

[0006] The outer shell has a transparent plate installed on the front side and a rectangular hole on the rear side; a base is installed below the outer shell, and mounting side plates are installed at both ends of the base, with the outer shell installed between the two mounting side plates.

[0007] The transmission roller assembly includes a guide roller and two first clamping rollers, which are rotatably mounted on the upper and lower parts of the inner side of the outer casing, respectively. The first clamping roller is rotatably mounted on the upper part of the inner side of the outer casing.

[0008] LED lights are installed on the upper inner side of the housing and their light source is directed towards the bottom of the housing.

[0009] A vacuum cleaner is mounted on the outer casing.

[0010] A binocular camera is mounted on the front of the housing.

[0011] Preferably, the outer casing is rotatably mounted between two mounting side plates, and a drive assembly for driving the outer casing to rotate is mounted on the base.

[0012] Preferably, the drive assembly includes a slide plate, a threaded rod, a rotating rod, and a slider. The slide plate is mounted on the base and has a slide groove. The threaded rod is rotatably mounted on the slide plate and has a knob connected to its end. The slider is slidably mounted in the slide groove and is threadedly connected to the threaded rod. The two ends of the rotating rod are rotatably connected to the slider and the bottom end of the outer casing, respectively.

[0013] Preferably, the binocular camera is rotatably mounted on the housing.

[0014] Preferably, sliding holes are provided at the upper and lower parts of both ends of the outer casing, and sliding seats are slidably installed in multiple sliding holes. Guide rods are provided inside multiple sliding holes, and sliding seats are slidably mounted on guide rods. Springs are sleeved on multiple guide rods, and second clamping rollers are rotatably installed between two sliding seats at corresponding height positions.

[0015] Preferably, the vacuuming device includes a vacuum cleaner and two vacuum heads, both of which are installed inside the outer casing, the vacuum cleaner is installed on the outer casing, and both vacuum heads are connected to the vacuum cleaner.

[0016] Preferably, the transparent plate is a transparent acrylic plate or a tempered glass plate.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] The light emitted by the LED lights can cover the entire vertical part of the fiberglass cloth, increasing the illumination area of ​​the LED lights and reducing the probability of workers missing inspections.

[0019] When the worker lowers their head, the microcontroller stops the motor, thus preventing the fabric from moving when the worker's eyes leave the inspection area, further reducing the probability of missed inspections and improving the quality of the fiberglass cloth leaving the factory. Attached Figure Description

[0020] Figure 1 and Figure 2 This is a schematic diagram of the structure of this utility model.

[0021] Figure 3 This is a cross-sectional view of the outer shell of this utility model.

[0022] Figure 4 for Figure 1 A magnified schematic diagram of the structure at point A.

[0023] Figure 5 for Figure 1 A magnified schematic diagram of the structure at point B.

[0024] Figure 6 for Figure 2 Schematic diagram of the enlarged structure at point C

[0025] Reference numerals: 1. Outer shell; 101. Rectangular hole; 102. Sliding hole; 2. Base; 3. Mounting side plate; 4. Sliding groove plate; 401. Sliding groove; 5. Transparent plate; 6. Guide roller; 7. First clamping roller; 8. Second clamping roller; 9. Vacuum head; 10. Vacuum cleaner; 11. Threaded rod; 12. Rotating rod; 13. Slider; 14. LED light; 15. Guide slide rod; 16. Spring; 17. Binocular camera; 18. Sliding seat; 19. Rotating plate; 20. Rotating mounting seat. Detailed Implementation

[0026] Example 1

[0027] like Figures 1-6 As shown in the figure, the electronic-grade fiberglass cloth inspection device proposed in this embodiment includes a housing 1, a transmission roller assembly, an LED light 14, a dust collection device, and a binocular camera 17.

[0028] A transparent plate 5, which is made of transparent acrylic or tempered glass, is installed on the front side of the outer shell 1. A rectangular hole 101 is opened on the rear side of the outer shell 1. A base 2 is set below the outer shell 1, and mounting side plates 3 are set at both ends of the base 2. The outer shell 1 is rotatably mounted between the two mounting side plates 3. A drive assembly for driving the rotation of the outer shell 1 is installed on the base 2. The drive assembly includes a slide plate 4, a threaded rod 11, a rotating rod 12, and a slider 13. The slide plate 4 is set on the base 2 and has a slide groove 401. The threaded rod 11 rotates... Installed on the slide plate 4, with a knob connected to its end, the slider 13 is slidably installed in the slide groove 401 and threadedly connected to the threaded rod 11. The two ends of the rotating rod 12 are respectively rotatably connected to the slider 13 and the bottom end of the outer shell 1. The above structure allows the operator to finely adjust the tilt angle of the outer shell 1 to meet the needs of different groups of people and different postures for observation, making it highly applicable. By adjusting the rotation direction of the threaded rod 11, the movement direction of the slider 13 can be adjusted. In conjunction with the rotating rod 12, the rotation angle of the outer shell 1 is adjustable.

[0029] The transmission roller assembly includes a guide roller 6 and two first clamping rollers 7. The two first clamping rollers 7 are rotatably mounted on the upper and lower parts of the inner side of the outer casing 1, respectively. The first clamping roller 7 is rotatably mounted on the upper part of the inner side of the outer casing 1.

[0030] LED light 14 is installed on the upper part of the inner side of the housing 1 and its light source direction is towards the bottom of the inner side of the housing 1.

[0031] The vacuuming device is installed on the outer casing 1. The vacuuming device includes a vacuum cleaner 10 and two vacuum heads 9. Both vacuum heads 9 are installed inside the outer casing 1. The vacuum cleaner 10 is installed on the outer casing 1. Both vacuum heads 9 are connected to the vacuum cleaner 10. The input end of the vacuum cleaner is connected to a T-junction. The two input ends of the T-junction are connected to the two vacuum heads 9 through vacuum tubes. Furthermore, in order to meet the suction power requirements, the two vacuum heads 9 can be connected to two vacuum cleaners respectively, so that the cloth passes between the two vacuum heads 9. When the vacuum cleaner 10 is started, the two vacuum heads 9 can remove the impurities adhering to the surface of the cloth, preventing the adhering impurities from causing misjudgment in the detection work.

[0032] The binocular camera 17 is mounted on the front side of the housing 1 and is rotatably mounted on the housing 1. When the angle of the housing 1 is adjusted, the angle of the binocular camera 17 can be adjusted accordingly so that the detection end of the binocular camera 17 faces the human head. It should be added that a rotating mounting base 20 is installed on the housing 1, and a rotating plate 19 is connected to the binocular camera 17. The rotating plate 19 and the rotating mounting base 20 are rotatably connected through a damping shaft.

[0033] In this technical solution, the fiberglass cloth is arranged according to... Figure 3 The arrangement shown in the figure helps to increase the visible area of ​​the fiberglass cloth. The LED light 14 is placed on the upper part of the inner side of the outer casing 1, so that the light source emitted by the LED light 14 can cover the entire vertical part of the fiberglass cloth, thereby increasing the illumination area of ​​the LED light 14 and reducing the probability of workers missing inspections.

[0034] The binocular camera 17 captures images from different angles using two cameras, calculates depth information using parallax, and constructs the 3D spatial position of the object. By analyzing the 3D coordinate changes of key head points, such as the nose, eyes, and ears, through continuous frame analysis, it can determine head posture, such as looking up, looking down, turning left and right, etc. In this technical solution, a microcontroller is also installed on the outer shell 1. The microcontroller is electrically connected to the binocular camera 17 and the motor used to drive the fabric winding. When the worker looks down, the microcontroller controls the motor to stop running, thereby preventing the fabric from still moving when the worker's eyes leave the detection area, further reducing the probability of missed detection and improving the factory quality of the fiberglass cloth.

[0035] Example 2

[0036] like Figure 3As shown in the figure, the electronic grade fiberglass cloth inspection device proposed in this embodiment, compared with the first embodiment, has sliding holes 102 at the upper and lower parts of both ends of the outer shell 1, sliding seats 18 are slidably installed in the multiple sliding holes 102, guide rods 15 are provided inside the multiple sliding holes 102, the sliding seats 18 are slidably installed on the guide rods 15, springs 16 are sleeved on the multiple guide rods 15, and second clamping rollers 8 are rotatably installed between the two sliding seats 18 at corresponding height positions.

[0037] In this embodiment, as Figure 3 As shown, due to the setting of spring 16, the second clamping rollers 8 at both the upper and lower ends exert a certain pressure on the surface of the fabric, thereby ensuring the flatness of the fabric on the side near the transparent plate 5, preventing shadows caused by fabric loosening, and improving detection efficiency.

[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An electronic-grade fiberglass cloth inspection device, characterized in that, include: The outer shell (1) has a transparent plate (5) installed on the front side and a rectangular hole (101) opened on the rear side; a base (2) is provided below the outer shell (1), and mounting side plates (3) are provided at both ends of the base (2); the outer shell (1) is installed between the two mounting side plates (3); The transmission roller assembly includes a guide roller (6) and two first clamping rollers (7). The two first clamping rollers (7) are rotatably mounted on the upper and lower parts of the inner side of the outer shell (1), respectively. The first clamping roller (7) is rotatably mounted on the upper part of the inner side of the outer shell (1). LED light (14), LED light (14) is installed on the upper part of the inner side of the outer shell (1) and its light source direction is towards the bottom of the inner side of the outer shell (1); A vacuuming device is mounted on the outer casing (1); A binocular camera (17) is mounted on the front side of the outer casing (1).

2. The electronic-grade fiberglass cloth inspection device according to claim 1, characterized in that, The outer shell (1) is rotatably mounted between two mounting side plates (3), and a drive assembly for driving the outer shell (1) to rotate is mounted on the base (2).

3. The electronic-grade fiberglass cloth inspection device according to claim 2, characterized in that, The drive assembly includes a slide plate (4), a threaded rod (11), a rotating rod (12), and a slider (13). The slide plate (4) is mounted on the base (2), and a slide groove (401) is provided on the slide plate (4). The threaded rod (11) is rotatably mounted on the slide plate (4), and a knob is connected to its end. The slider (13) is slidably mounted in the slide groove (401) and threadedly connected to the threaded rod (11). The two ends of the rotating rod (12) are rotatably connected to the slider (13) and the bottom end of the outer shell (1), respectively.

4. The electronic-grade fiberglass cloth inspection device according to claim 3, characterized in that, The binocular camera (17) is rotatably mounted on the outer casing (1).

5. The electronic-grade fiberglass cloth inspection device according to claim 1, characterized in that, The upper and lower parts of both ends of the outer shell (1) are provided with sliding holes (102). Sliding seats (18) are slidably installed in the sliding holes (102). Guide slide rods (15) are provided inside the sliding holes (102). The sliding seats (18) are slidably installed on the guide slide rods (15). Springs (16) are sleeved on the guide slide rods (15). A second clamping roller (8) is rotatably installed between the two sliding seats (18) at the corresponding height positions.

6. The electronic-grade fiberglass cloth inspection device according to claim 1, characterized in that, The vacuuming device includes a vacuum cleaner (10) and two vacuum heads (9). Both vacuum heads (9) are installed inside the outer casing (1), and the vacuum cleaner (10) is installed on the outer casing (1). Both vacuum heads (9) are connected to the vacuum cleaner (10).

7. The electronic-grade fiberglass cloth inspection device according to claim 1, characterized in that, The transparent plate (5) is a transparent acrylic plate or a tempered glass plate.