A flexible circuit board defect detection system

Abstract

This invention relates to the field of circuit board defect detection technology and discloses a flexible circuit board defect detection system, comprising: a frame, a loading platform, a first moving device, a first detection device, a first visual inspection marking device, and a placement platform; the frame includes a panel and a support, the support being disposed on the panel; the loading platform, the first detection device, and the placement platform are sequentially disposed on the panel along a first direction; the loading platform is used to place flexible circuit boards; the support is disposed on one side of the loading platform in a second direction, the first moving device is mounted on the support, the first moving device being used to move the flexible circuit boards on the loading platform to the first detection device and to move the flexible circuit boards on the first detection device to the placement platform; the first visual inspection marking device is mounted on the support, the first visual inspection marking device being used to detect and mark defects on the flexible circuit boards on the first detection device; the placement platform is provided with a good product area and a defective product area; wherein, the first direction and the second direction are perpendicular to each other.

Description

Technical Field

[0001] This invention relates to the field of circuit board defect detection technology, and in particular to a flexible circuit board defect detection system. Background Technology

[0002] Since its development in the 1950s, flexible circuit boards (PCBs) have been widely used in various fields such as consumer electronics, new energy vehicles, and medical devices due to their advantages of flexibility, high integration, and lightweight design. However, the manufacturing process of flexible circuit boards is relatively complex and may result in various defects, thus necessitating defect detection.

[0003] Currently, existing flexible circuit board (PCB) defect detection systems use vision inspection devices to inspect PCBs. However, these devices have a low pass rate for good PCBs, with many boards initially identified as defective but actually meeting good standards. Therefore, manual visual re-inspection of the entire PCB is usually required. However, manual re-inspection of the entire PCB is inefficient, impacting PCB production efficiency. Summary of the Invention

[0004] The purpose of this invention is to improve the efficiency of manual inspection of flexible circuit boards and to increase the production efficiency of flexible circuit boards.

[0005] To achieve the above objectives, the present invention provides a flexible circuit board defect detection system, comprising: a frame, a loading platform, a first moving device, a first detection device, a first visual inspection marking device, and a placement platform;

[0006] The frame includes a panel and a bracket, the bracket being disposed on the panel;

[0007] The panel is provided with the loading platform, the first detection device and the placement platform in sequence along the first direction;

[0008] The loading platform is used to place flexible circuit boards;

[0009] The support is located on one side of the loading platform in the second direction. The first moving device is mounted on the support. The first moving device is used to move the flexible circuit board on the loading platform to the first detection device and to move the flexible circuit board on the first detection device to the placement platform.

[0010] The first visual inspection marking device is mounted on the bracket, and the first visual inspection marking device is used to inspect and mark defects on the flexible circuit board on the first inspection device;

[0011] The placement platform is divided into a good product area and a defective product area;

[0012] The first direction and the second direction are perpendicular to each other.

[0013] Preferably, the loading platform includes a loading platform plate and a loading lifting mechanism;

[0014] The loading platform is used to place flexible circuit boards;

[0015] The feeding lifting mechanism is mounted on the panel, and the feeding platform is mounted on the feeding lifting mechanism;

[0016] The first moving device includes a first horizontal moving slide rail and an adsorption device, wherein the first horizontal moving slide rail is mounted on the bracket and extends along a first direction;

[0017] The adsorption device includes a movable mounting plate and an adsorption lifting mechanism. The movable mounting plate is mounted on the first horizontal moving slide rail and moves along the first horizontal moving slide rail. The movable mounting plate is connected to the adsorption lifting mechanism, and the adsorption lifting mechanism is connected to a suction cup.

[0018] The first detection device is equipped with a suction cup.

[0019] Preferably, the panel has a groove, and the loading platform further includes a loading base plate, which is installed in the groove;

[0020] The feeding lifting mechanism is installed on the feeding base plate, and a telescopic rod connects the feeding base plate and the feeding platform.

[0021] Preferably, the first detection device includes a first fixed platform and a first vertical moving slide rail;

[0022] The first vertical moving slide rail is on the panel and is arranged along the second direction and extends to the side of the bracket away from the loading platform. The first fixed platform is installed on the first vertical moving slide rail and moves along the first vertical moving slide rail. A suction cup is provided on the first fixed platform.

[0023] The first visual inspection and marking device is installed on the side of the bracket away from the loading platform and opposite to the first vertical moving slide rail. The first visual inspection and marking device is used to detect and mark defects on the flexible circuit board on the first fixed platform when the first fixed platform moves to the side of the bracket away from the loading platform.

[0024] Preferably, it further includes: a second visual detection marking device, a flipping device placed on the panel, and a second detection device;

[0025] The second detection device is located between the first detection device and the placement stage; the second detection device is equipped with a suction cup;

[0026] The flipping device is located between the second detection device and the first detection device; the flipping device includes a flipping base, a flipping shaft, and a flipping plate. The flipping base is mounted on the panel. The length direction and the second direction of the flipping shaft are the same. The flipping shaft is mounted on the flipping base. The flipping plate is connected to the flipping shaft.

[0027] The flip plate includes a first surface with a suction cup; when the flip plate is flipped to the side closer to the second detection device, the first surface of the flip plate faces downward and towards the second detection device; when the flip plate is flipped to the side closer to the first detection device, the first surface of the flip plate faces upward and is parallel to the first detection device.

[0028] The second visual inspection marking device is mounted on the bracket and is used to inspect and mark defects on the flexible circuit board on the second inspection device.

[0029] The first moving device is used to move the flexible circuit board on the loading platform to the first detection device, move the flexible circuit board on the first detection device to the flipping device, and move the flexible circuit board on the second detection device to the placement platform.

[0030] Preferably, the second detection device includes a second fixed platform and a second vertical moving slide rail;

[0031] The second vertical moving slide rail is on the panel and is arranged along the second direction and extends to the side of the bracket away from the loading platform. The second fixed platform is installed on the second vertical moving slide rail and moves along the second vertical moving slide rail. A suction cup is provided on the second fixed platform.

[0032] The second visual inspection and marking device is installed on the side of the bracket away from the loading platform and is opposite to the second vertical moving slide rail. The second visual inspection and marking device is used to detect and mark defects on the flexible circuit board on the second fixed platform when the second fixed platform moves to the side of the bracket away from the loading platform.

[0033] Preferably, the first horizontal moving slide rail includes a loading horizontal moving slide rail and a unloading horizontal moving slide rail;

[0034] The loading horizontal sliding rail extends from the loading platform to the flipping device, and the unloading horizontal sliding rail extends from the second detection device to the placement platform;

[0035] The feeding horizontal moving slide rail is equipped with two adsorption devices. The adsorption device closer to the feeding platform is used to move the flexible circuit board located on the feeding platform to the first detection device, and the adsorption device closer to the flipping device is used to move the flexible circuit board located on the first detection device to the flipping device.

[0036] An adsorption device is provided on the horizontal moving slide rail for feeding materials. The adsorption device is used to move the flexible circuit board on the second detection device to the placement platform.

[0037] Preferably, it further includes a second moving device for removing the protective paper from the loading table or placing the protective paper on the loading table;

[0038] The second moving device includes a second horizontal moving slide rail and a protective paper adsorption device, wherein the second horizontal moving slide rail is mounted on the bracket and extends along the first direction;

[0039] The protective paper adsorption device includes a protective paper movable mounting plate and a protective paper adsorption lifting mechanism. The protective paper movable mounting plate is mounted on the second horizontal moving slide rail and moves along the second horizontal moving slide rail. The protective paper movable mounting plate is connected to the protective paper adsorption lifting mechanism, and the protective paper adsorption lifting mechanism is connected to a suction cup.

[0040] Preferably, the first visual inspection marking device includes a visual inspection marking mounting plate, a visual camera, a slide table, and a marking pen;

[0041] The visual inspection mark mounting plate is mounted on the bracket, and the visual camera and the slide table are connected to the visual inspection mark mounting plate.

[0042] The slide table includes a vertical slide rail, a first slide table, a horizontal slide rail, and a second slide table.

[0043] The vertical slide rail is mounted on the visual inspection mark mounting plate and extends in a third direction, and the first slide is mounted on the vertical slide rail and moves along the vertical slide rail;

[0044] The horizontal slide rail is mounted on the first slide platform and extends along the first direction, and the second slide platform is mounted on the horizontal slide rail and moves along the horizontal slide rail;

[0045] The marker pen is mounted on the second slide.

[0046] Preferably, the first visual detection marking device further includes an illumination device arranged around the visual camera.

[0047] This invention discloses a flexible circuit board defect detection system. Compared with existing technologies, its advantages are as follows: The flexible circuit board is placed on a loading platform. A first moving device moves the flexible circuit board to a first detection device. A first visual inspection and marking device detects and marks defects on the flexible circuit board on the first detection device. The first moving device then moves the flexible circuit board from the first detection device to a placement platform. Good products are placed in the good product area, and defective products are placed in the defective product area. Therefore, when workers re-inspect the flexible circuit board, they only need to check the marked positions on the flexible circuit board in the defective product area, without needing to inspect the entire flexible circuit board to determine whether it meets the good product standard. This improves the efficiency of manual re-inspection of flexible circuit boards and also increases the production efficiency of flexible circuit boards. Attached Figure Description

[0048] Figure 1 This is a front structural schematic diagram of the flexible circuit board defect detection system according to an embodiment of the present invention;

[0049] Figure 2 This is a schematic diagram of the back structure of the flexible circuit board defect detection system according to an embodiment of the present invention;

[0050] Figure 3 This is a schematic diagram of the structure of the first moving device, the feeding adsorption device, the transfer adsorption device, and the feeding platform described in the embodiments of the present invention;

[0051] Figure 4 This is a schematic diagram of the structure of the first moving device, the second moving device, and the feeding and adsorption device according to an embodiment of the present invention;

[0052] Figure 5 This is a schematic diagram of the structure of the first visual detection marking device according to an embodiment of the present invention;

[0053] In the diagram, 1. Frame; 101. Base; 102. Panel; 103. Bracket; 104. Groove; 2. Loading platform; 201. Loading platform plate; 202. Loading lifting mechanism; 203. Loading base plate; 204. Telescopic rod; 3. First moving device; 301. First horizontal moving slide rail; 3011. Loading horizontal moving slide rail; 3012. Unloading horizontal moving slide rail; 302. Adsorption device; 3021. Movable mounting plate; 302 2. Adsorption lifting mechanism; 4. First detection device; 401. First fixed platform; 402. First vertical moving slide rail; 5. Tilting device; 501. Tilting base; 502. Tilting shaft; 503. Tilting plate; 5031. First surface; 6. Second detection device; 601. Second fixed platform; 602. Second vertical moving slide rail; 7. Feeding adsorption device; 701. Feeding adsorption moving mounting plate; 702. Feeding adsorption lifting mechanism; 8. 801. Transfer adsorption device; 802. Transfer adsorption moving mounting plate; 9. Transfer adsorption lifting mechanism; 10. Material feeding adsorption device; 11. Material feeding adsorption moving mounting plate; 12. Material feeding adsorption lifting mechanism; 13. Protective paper; 14. First visual inspection marking device; 15. Visual inspection marking mounting plate; 16. Visual camera; 17. Slide table; 18. Vertical slide rail; 19. Vertical slide table; 10. Horizontal slide rail; 11. Horizontal slide table; 11. Marking pen; 12. Lighting device; 13. Second visual inspection marking device; 14. Second moving device; 15. Second horizontal moving slide rail; 16. Protective paper adsorption device; 17. Protective paper moving mounting plate; 18. Protective paper adsorption lifting mechanism; 19. Placement table; 10. Good product area; 11. Defective product area; 12. Flexible circuit board. Detailed Implementation

[0054] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0055] In the description of this invention, it should be understood that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the embodiments of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this invention based on the specific circumstances.

[0056] like Figure 1-3 As shown, a flexible circuit board defect detection system according to an embodiment of the present invention includes: a frame 1, a loading platform 2, a first moving device 3, a first detection device 4, a first visual inspection marking device 11, and a placement platform 14;

[0057] The rack 1 includes a panel 102 and a bracket 103, with the bracket 103 disposed on the panel 102;

[0058] A loading platform 2, a first detection device 4, and a placement platform 14 are sequentially arranged on the panel 102 along the first direction X.

[0059] The loading platform 2 is used to place the flexible circuit board 15;

[0060] The support 103 is located on one side of the loading platform 2 in the second direction Y. The first moving device 3 is installed on the support 103. The first moving device 3 is used to move the flexible circuit board 15 on the loading platform 2 to the first detection device 4 and to move the flexible circuit board 15 on the first detection device 4 to the placement platform 14.

[0061] The first visual inspection and marking device 11 is mounted on the bracket 103. The first visual inspection and marking device 11 is used to inspect and mark defects on the flexible circuit board 15 on the first inspection device 4.

[0062] The placement table 14 is provided with a good product area 1401 and a defective product area 1402;

[0063] Among them, the first direction X and the second direction Y are perpendicular to each other.

[0064] It should be noted that when the flexible circuit board 15 is placed on the loading table 2, the first moving device 3 moves the flexible circuit board 15 to the first inspection device 4. The first visual inspection and marking device 11 detects and marks defects on the flexible circuit board 15 on the first inspection device 4. The first moving device 3 then moves the flexible circuit board 15 from the first inspection device 4 to the placement table 14. Good products are placed in the good product area 1401, and defective products are placed in the defective product area 1402. Thus, when the staff re-inspects the flexible circuit board, they only need to check the marked position of the flexible circuit board 15 on the defective product area 1402, without having to inspect the entire flexible circuit board 15 to determine whether it meets the good product standard. This improves the efficiency of manual re-inspection of the flexible circuit board 15 and can also improve the production efficiency of the flexible circuit board 15.

[0065] See Figure 1 In a more specific embodiment, the rack 1 also includes a base 101 on which the panel 102 is mounted.

[0066] It should be noted that the base 101 serves to support the panel 102, and adjusting the height of the base 101 can adjust the height of the panel 102.

[0067] See Figure 1-3 In a more specific embodiment, the loading platform 2 includes a loading platform plate 201 and a loading lifting mechanism 202;

[0068] The loading platform 201 is used to place the flexible circuit board 15;

[0069] The loading lifting mechanism 202 is installed on the panel 102, and the loading platform 201 is installed on the loading lifting mechanism 202;

[0070] The first moving device 3 includes a first horizontal moving slide rail 301 and an adsorption device 302. The first horizontal moving slide rail 301 is mounted on the bracket 103 and extends along the first direction X.

[0071] The adsorption device 302 includes a movable mounting plate 3021 and an adsorption lifting mechanism 3022. The movable mounting plate 3021 is mounted on a first horizontal sliding rail 301 and moves along the first horizontal sliding rail 301. The movable mounting plate 3021 is connected to the adsorption lifting mechanism 3022, and the adsorption lifting mechanism 3022 is connected to a suction cup.

[0072] The first detection device 4 is equipped with a suction cup.

[0073] It should be noted that, in the initial state, the loading lifting mechanism 202 rises, raising the loading platform 201 to its highest point. The flexible circuit board 15 is placed on the loading platform 201. The movable mounting plate 3021 of the adsorption device 302 moves along the first horizontal sliding rail 301 to above the loading platform 201, driving the adsorption lifting mechanism 3022 to lower the connected suction cup until the suction cup adheres to the flexible circuit board 15 on the loading platform 201, after which the suction cup is raised again. Simultaneously with the suction cup adhering to the flexible circuit board 15, the loading lifting mechanism 202 lowers the connected loading platform 201, ensuring that the flexible circuit board 15 detaches from the loading platform 201.

[0074] The adsorption device 302 adsorbs the flexible circuit board 15. After the movable mounting plate 3021 moves along the first horizontal sliding rail 301 to above the first detection device 4, the adsorption lifting mechanism 3022 drives the connected suction cup and the flexible circuit board 15 adsorbed by the suction cup to descend. After the flexible circuit board 15 contacts the suction cup on the first detection device 4 and is adsorbed, the adsorption lifting mechanism 3022 drives the suction cup connected to the adsorption lifting mechanism 3022 to rise and detach from the flexible circuit board 15. The flexible circuit board 15 remains in the first detection device 4 to wait for the first visual inspection and marking device 11 to detect and mark defects.

[0075] After the flexible circuit board 15 is marked, the movable mounting plate 3021 of the adsorption device 302 moves along the first horizontal moving slide rail 301 to above the first detection device 4, drives the adsorption lifting mechanism 3022 to drive the connected suction cup to descend and suck up the flexible circuit board 15, and then rises. The movable mounting plate 3021 moves along the first horizontal moving slide rail 301 to above the placement platform 14, drives the adsorption lifting mechanism 3022 to drive the connected suction cup and the flexible circuit board 15 sucked by the suction cup to descend, and places the flexible circuit board 15 in the corresponding area of ​​the placement platform 14.

[0076] In a more specific embodiment, the suction cup is a vacuum sponge suction cup, which adsorbs the flexible circuit board 15 more gently and effectively avoids damage to the flexible circuit board 15.

[0077] The adsorption lifting mechanism 3022 is a cylinder-driven mechanism, or it can be other existing lifting structures; the loading lifting mechanism 202 is driven by a servo motor, or it can be other existing lifting structures; the movable mounting plate 3021 moves along the first horizontal sliding rail 301 driven by a servo motor, or it can be other existing driving structures.

[0078] See Figure 1-3 In a more specific embodiment, a groove 104 is provided on the panel 102, and the loading platform 2 also includes a loading base plate 203, which is installed in the groove 104.

[0079] The loading lifting mechanism 202 is installed on the loading base plate 203, and a telescopic rod 204 is connected between the loading base plate 203 and the loading platform 201.

[0080] It should be noted that a groove 104 is provided on the panel 102 to install the loading base plate 203, so that the loading platform 2 and the panel 102 are detachable and can be replaced when the loading platform 2 malfunctions.

[0081] A telescopic rod 204 is connected between the loading base plate 203 and the loading platform 201. When the loading lifting mechanism 202 lifts the loading platform 201, the telescopic rod 204 extends; when the loading lifting mechanism 202 drives the loading platform 201 to descend, the telescopic rod 204 shortens. The telescopic rod 204 ensures the stability of the position between the loading platform 201 and the loading base plate 203.

[0082] In a more specific embodiment, the loading platform 201 is polygonal, and the number of telescopic rods 204 is the same as the number of sides of the loading platform 201. Each telescopic rod 204 is connected to each corner of the loading platform 201 to ensure the stability of the loading platform 201 when it rises or falls.

[0083] See Figure 1-3In a more specific embodiment, the first detection device 4 includes a first fixed platform 401 and a first vertical moving slide rail 402;

[0084] The first vertical moving slide rail 402 is set on the panel 102 along the second direction Y and extends to the side of the bracket 103 away from the loading table 2. The first fixed table 401 is installed on the first vertical moving slide rail 402 and moves along the first vertical moving slide rail 402. The first fixed table 401 is provided with a suction cup.

[0085] The first visual inspection and marking device 11 is installed on the side of the bracket 103 away from the loading platform 2 and opposite to the first vertical moving slide rail 402. The first visual inspection and marking device 11 is used to detect and mark defects on the flexible circuit board 15 on the first fixed platform 401 when the first fixed platform 401 moves to the side of the bracket 103 away from the loading platform 2.

[0086] It should be noted that the first vertical moving slide rail 402 is on the panel 102 and extends along the second direction Y from the side of the bracket 103 near the loading platform 2 to the side of the bracket 103 away from the loading platform 2, that is, the bracket 103 spans the first vertical moving slide rail 402.

[0087] The first moving device 3 moves the flexible circuit board 15 from the loading table 2 along the first direction X to the first fixed platform 401 on the first detection device 4. The initial position of the first fixed platform 401 is on the same straight line as the loading table 2. The first fixed platform 401 moves from the initial position along the first vertical moving slide rail 402 to the side of the bracket 103 away from the loading table 2. The first visual inspection and marking device 11 installed on the side of the bracket 103 away from the loading table 2 detects and marks defects on the flexible circuit board 15 on the first fixed platform 401, which can avoid the interference of the operation on the side of the loading table 2 on the detection and marking.

[0088] If the first visual inspection marking device 11 determines that the flexible circuit board 15 is a good product, the first fixed stage 401 moves directly back to the initial position. If the first visual inspection marking device 11 determines that the flexible circuit board 15 is a defective product, the defective position is marked, and after marking, the first fixed stage 401 moves back to the initial position.

[0089] See Figure 1-3 In a more specific embodiment, it also includes: a second visual detection marking device 12, a flipping device 5 placed on the panel 102, and a second detection device 6;

[0090] The second detection device 6 is located between the first detection device 4 and the placement stage 14; the second detection device 6 is equipped with a suction cup.

[0091] The flipping device 5 is located between the second detection device 6 and the first detection device 4. The flipping device 5 includes a flipping base 501, a flipping shaft 502 and a flipping plate 503. The flipping base 501 is mounted on the panel 102. The length direction of the flipping shaft 502 is the same as the second direction Y. The flipping shaft 502 is mounted on the flipping base 501. The flipping plate 503 is connected to the flipping shaft 502.

[0092] The flip plate 503 includes a first surface 5031 with a suction cup; when the flip plate 503 is flipped to the side closer to the second detection device 6, the first surface 5031 of the flip plate 503 faces downward and towards the second detection device 6; when the flip plate 503 is flipped to the side closer to the first detection device 4, the first surface 5031 of the flip plate 503 faces upward and is parallel to the first detection device 4.

[0093] The second visual inspection and marking device 12 is mounted on the bracket 103. The second visual inspection and marking device 12 is used to inspect and mark defects on the flexible circuit board 15 on the second fixed platform 601.

[0094] The first moving device 3 is used to move the flexible circuit board 15 on the loading platform 2 to the first detection device 4, move the flexible circuit board 15 on the first detection device 4 to the flipping device 5, and move the flexible circuit board 15 on the second detection device 6 to the placement platform 14.

[0095] It should be noted that the second detection device 6 on the panel 102 is located between the first detection device 4 and the placement table 14, and the flipping device 5 on the panel 102 is located between the second detection device 6 and the first detection device 4. That is, the first detection device 4, the flipping device 5, the second detection device 6 and the placement table 14 are on the same straight line.

[0096] After the flexible circuit board 15 is placed face up on the first detection device 4 for detection, the flipping plate 503 of the flipping device 5 flips to the side closer to the first detection device 4, with the first surface 5031 of the flipping plate 503 facing up and parallel to the first detection device 4. The first moving device 3 moves the flexible circuit board 15 from the first detection device 4 onto the first surface 5031 of the flipping plate 503. Then, the flipping plate 503 flips along the flipping axis 502, with the first surface 5031 of the flipping plate 503 facing down and toward the second detection device 6. The suction cup on the second detection device 6 holds the flexible circuit board 15, so that the back of the flexible circuit board 15 faces up. The second visual inspection marking device 12 inspects the back of the flexible circuit board 15. After the inspection is completed, the first moving device 3 moves the flexible circuit board 15 from the second detection device 6 to the placement stage 14.

[0097] See Figure 1-3 In a more specific embodiment, the second detection device 6 includes a second fixed platform 601 and a second vertical moving slide rail 602;

[0098] The second vertical moving slide rail 602 is set on the panel 102 along the second direction Y and extends to the side of the bracket 103 away from the loading table 2. The second fixed table 601 is installed on the second vertical moving slide rail 602 and moves along the second vertical moving slide rail 602. The second fixed table 601 is provided with a suction cup.

[0099] The second visual inspection and marking device 12 is installed on the side of the bracket 103 away from the loading platform 2 and is opposite to the second vertical moving slide rail 602. The second visual inspection and marking device 12 is used to detect and mark defects on the flexible circuit board 15 on the second fixed platform 601 when the second fixed platform 601 moves to the side of the bracket 103 away from the loading platform 2.

[0100] It should be noted that the second vertical moving slide rail 602 is on the panel 102 and extends along the second direction Y from the side of the bracket 103 near the loading platform 2 to the side of the bracket 103 away from the loading platform 2, that is, the bracket 103 spans the second vertical moving slide rail 602.

[0101] After the flipping device 5 moves the flexible circuit board 15 to the second fixed platform 601 on the second detection device 6, the initial position of the second fixed platform 601 and the flipping device 5 are on the same straight line. The first fixed platform 401 moves from the initial position along the second vertical moving slide rail 602 to the side of the bracket 103 away from the loading platform 2. The second visual inspection and marking device 12 installed on the side of the bracket 103 away from the loading platform 2 detects and marks defects on the flexible circuit board 15 on the second fixed platform 601, which can avoid the interference of the operation on the side of the loading platform 2 on the detection and marking.

[0102] If the second visual inspection marking device 12 determines that the flexible circuit board 15 is a good product, the second fixed stage 601 moves directly back to the initial position. If the second visual inspection marking device 12 determines that the flexible circuit board 15 is a defective product, the defective position is marked, and after marking, the second fixed stage 601 moves back to the initial position.

[0103] See Figure 1-4 In a more specific embodiment, the first horizontal moving slide rail 301 includes a loading horizontal moving slide rail 3011 and a discharging horizontal moving slide rail 3012;

[0104] The loading horizontal moving slide rail 3011 extends from the loading platform 2 to the tilting device 5, and the unloading horizontal moving slide rail 3012 extends from the second detection device 6 to the placement platform 14.

[0105] The feeding horizontal moving slide rail 3011 is equipped with two adsorption devices 302. The adsorption device 302 near the feeding platform 2 (hereinafter defined as feeding adsorption device 7) is used to move the flexible circuit board 15 located on the feeding platform 2 to the first detection device 4. The adsorption device 302 near the flipping device 5 (hereinafter defined as transfer adsorption device 8) is used to move the flexible circuit board 15 located on the first detection device 4 to the flipping device 5.

[0106] An adsorption device 302 (hereinafter defined as the feeding adsorption device 9) is provided on the feeding horizontal moving slide rail 3012. The adsorption device 302 is used to move the flexible circuit board 15 on the flipping device 5 to the placement table 14.

[0107] It should be noted that the feeding and adsorption device 7 includes a feeding and adsorption movable mounting plate 701 and a feeding and adsorption lifting mechanism 702. The feeding and adsorption movable mounting plate 701 is mounted on the feeding horizontal moving slide rail 3011 and moves along the feeding horizontal moving slide rail 3011. The feeding and adsorption movable mounting plate 701 is connected to the feeding and adsorption lifting mechanism 702, and the feeding and adsorption lifting mechanism 702 is connected to a suction cup.

[0108] The transfer adsorption device 8 includes a transfer adsorption movable mounting plate 801 and a transfer adsorption lifting mechanism 802. The transfer adsorption movable mounting plate 801 is mounted on the feeding horizontal moving slide rail 3011 and moves along the feeding horizontal moving slide rail 3011. The transfer adsorption movable mounting plate 801 is located on the side of the feeding adsorption movable mounting plate 701 close to the flipping device 5. The transfer adsorption movable mounting plate 801 is connected to the transfer adsorption lifting mechanism 802, and the transfer adsorption lifting mechanism 802 is connected to a suction cup.

[0109] The feeding adsorption device 9 includes a feeding adsorption movable mounting plate 901 and a feeding adsorption lifting mechanism 902. The feeding adsorption movable mounting plate 901 is mounted on the feeding horizontal moving slide rail 3012 and moves along the feeding horizontal moving slide rail 3012. The feeding adsorption movable mounting plate 901 is connected to the feeding adsorption lifting mechanism 902, and the feeding adsorption lifting mechanism 902 is connected to a suction cup.

[0110] The loading adsorption device 7 is used to move the flexible circuit board 15 from the loading platform 2 to the first detection device 4, the transfer adsorption device 8 is used to move the flexible circuit board 15 from the first detection device 4 to the flipping device 5, and the unloading adsorption device 9 is used to move the flexible circuit board 15 from the second detection device 6 to the placement platform 14. As a result, the movement paths of each moving device are shortened. After completing the operation corresponding to the previous flexible circuit board 15, the corresponding operation can be performed on the next flexible circuit board 15 immediately, thereby improving the detection efficiency of the defect detection system.

[0111] The feeding adsorption lifting mechanism 702, the transfer adsorption lifting mechanism 802, and the unloading adsorption lifting mechanism 902 are all cylinder-driven mechanisms, or they can be other existing lifting structures.

[0112] See Figure 1-4 In a more specific embodiment, it also includes a second moving device 13 for removing the protective paper 10 from the loading table 2 or placing the protective paper 10 on the loading table 2;

[0113] The second moving device 13 includes a second horizontal moving slide rail 1301 and a protective paper adsorption device 1302. The second horizontal moving slide rail 1301 is mounted on the bracket 103 and extends along the first direction X.

[0114] The protective paper adsorption device 1302 includes a protective paper movable mounting plate 13021 and a protective paper adsorption lifting mechanism 13022. The protective paper movable mounting plate 13021 is mounted on the second horizontal moving slide rail 1301 and moves along the second horizontal moving slide rail 1301. The protective paper movable mounting plate 13021 is connected to the protective paper adsorption lifting mechanism 13022, and the protective paper adsorption lifting mechanism 13022 is connected to a suction cup.

[0115] It should be noted that when loading materials, protective paper 10 is placed on the loading platform 2 first, and then flexible circuit board 15 is placed on the protective paper 10.

[0116] After the flexible circuit board 15 is inspected and moved to the placement table 14, the protective paper moving mounting plate 13021 moves along the second horizontal moving slide rail 1301 to the top of the loading table 2. The protective paper adsorption lifting mechanism 13022 is driven to lower the suction cup of the protective paper adsorption device 1302 to pick up the protective paper 10 and then rise. The protective paper moving mounting plate 13021 moves along the second horizontal moving slide rail 1301 to the top of the placement table 14. The protective paper adsorption lifting mechanism 13022 is driven to lower the connected suction cup and the protective paper 10 picked up by the suction cup, and place the protective paper 10 on the corresponding flexible circuit board 15 to play the role of dispensing.

[0117] The protective paper adsorption lifting mechanism 13022 is a cylinder driven mechanism, or it can be other existing lifting structures; the protective paper moving mounting plate 13021 moves along the second horizontal moving slide rail 1301 driven by a servo motor, or it can be other existing driving structures.

[0118] In this application, the first horizontal moving slide rail 301, the loading horizontal moving slide rail 3011, the unloading horizontal moving slide rail 3012, the first vertical moving slide rail 402, the second vertical moving slide rail 602, and the second horizontal moving slide rail 1301 can all be moving modules driven by servo motors. The parts that need to move are installed on the modules of the moving modules so that they can move along the moving modules.

[0119] See Figure 1 , 5 In a more specific embodiment, the first visual inspection marking device 11 includes a visual inspection marking mounting plate 1101, a visual camera 1102, a sliding table 1103, and a marking pen 1104;

[0120] The visual inspection mark mounting plate 1101 is mounted on the bracket 103, and the visual camera 1102 and the slide table 1103 are connected to the visual inspection mark mounting plate 1101.

[0121] The slide table 1103 includes a vertical slide rail 11031, a first slide table 11032, a horizontal slide rail 11033, and a second slide table 11034;

[0122] The vertical slide rail 11031 is mounted on the visual inspection mark mounting plate 1101 and extends along the third direction Z. The first slide table 11032 is mounted on the vertical slide rail 11031 and moves along the vertical slide rail 11031.

[0123] A horizontal slide rail 11033 is mounted on a first slide table 11032 and extends along a first direction X; a second slide table 11034 is mounted on the horizontal slide rail 11033 and moves along the horizontal slide rail 11033.

[0124] The marker pen 1104 is mounted on the second slide 11034;

[0125] Among them, the third direction Z is perpendicular to both the first direction X and the second direction Y.

[0126] It should be noted that the vision camera 1102 and the slide table 1103 are mounted on the bracket 103 via the vision inspection mark mounting plate 1101. The vision camera 1102 performs visual inspection on the flexible circuit board 15. If a defect is detected, the defect location is fed back to the slide table 1103 and the first inspection device 4. The slide table 1103 drives the second slide table 11034 to move along the horizontal slide rail 11033 in the first direction X. The first inspection device 4 drives the first fixed stage 401 to move along the first vertical moving slide rail 402 in the second direction Y. The marker pen 1104 mounted on the second slide 11034 has its tip pointing downwards until the tip of the marker pen 1104 is aligned with the defect location of the flexible circuit board 15. Then, the slide 1103 drives the first slide 11032 to move downwards along the vertical slide rail 11031 in the third direction until the marker pen 1104 contacts the flexible circuit board 15 to make a mark. After marking, the slide 1103 drives the first slide 11032 to move upwards along the vertical slide rail 11031 in the third direction, so that the tip of the marker pen 1104 leaves the flexible circuit board 15.

[0127] The second visual inspection marking device 12 and the first visual inspection marking device 11 have the same structure, but the visual camera in the second visual inspection marking device 12 will feed back the detected defect location to the second inspection device 6 and the slide table in the second visual inspection marking device 12.

[0128] See Figure 5 In a more specific embodiment, the first visual detection marking device 11 further includes an illumination device 1105 arranged around the visual camera 1102.

[0129] It should be noted that the lighting device 1105 is arranged around the vision camera 1102 to shine light on the flexible circuit board 15, ensuring sufficient lighting on the screen when the vision camera 1102 is inspecting, thereby improving the accuracy of the vision camera 1102 in detecting defects in the flexible circuit board 15.

[0130] The working process of this invention is as follows: the flexible circuit board 15 is placed on the loading platform 2, the first moving device 3 moves the flexible circuit board 15 to the first detection device 4, the first visual inspection and marking device 11 detects and marks defects on the flexible circuit board 15 on the first detection device 4, and the first moving device 3 then moves the flexible circuit board 15 from the first detection device 4 to the placement platform 14. Good products are placed in the good product area 1401, and defective products are placed in the defective product area 1402. Thus, when the staff re-inspects the flexible circuit board, they only need to check the marking position of the flexible circuit board 15 on the defective product area 1402, and do not need to inspect the entire flexible circuit board 15 to determine whether the flexible circuit board 15 meets the good product standard.

[0131] In summary, the embodiments of the present invention provide a flexible circuit board defect detection system, which improves the efficiency of manual re-inspection of flexible circuit boards and can also improve the production efficiency of flexible circuit boards.

[0132] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A flexible circuit board defect detection system, characterized in that, include: Frame (1), loading platform (2), first moving device (3), first detection device (4), first visual inspection marking device (11), placement platform (14) and second visual inspection marking device (12); The frame (1) includes a panel (102) and a bracket (103), the bracket (103) being disposed on the panel (102); The panel (102) is provided with the loading platform (2), the first detection device (4) and the placement platform (14) in sequence along the first direction. The loading platform (2) is used to place flexible circuit boards (15). The loading platform (2) includes a loading platform plate (201) and a loading lifting mechanism (202). The loading platform plate (201) is used to place flexible circuit boards (15). The loading lifting mechanism (202) is installed on the panel (102). The loading platform plate (201) is installed on the loading lifting mechanism (202). The bracket (103) is located on one side of the loading platform (2) in the second direction. The first moving device (3) is installed on the bracket (103). The first moving device (3) is used to move the flexible circuit board (15) on the loading platform (2) to the first detection device (4) and to move the flexible circuit board (15) on the first detection device (4) to the placement platform (14). The first moving device (3) includes a first horizontal moving slide rail (301) and an adsorption device (302). The first horizontal moving slide rail (301) is installed on the bracket (103) and extends in the first direction. The adsorption device (302) includes a movable mounting plate (3021) and an adsorption lifting mechanism (3022). The movable mounting plate (3021) is installed on the first horizontal moving slide rail (301) and moves along the first horizontal moving slide rail (301). The movable mounting plate (3021) is connected to the adsorption lifting mechanism (3022). The adsorption lifting mechanism (3022) is connected to a suction cup. The first detection device (4) includes a first fixed platform (401) and a first vertical moving slide rail (402); the first vertical moving slide rail (402) is on the panel (102) and is arranged along the second direction and extends to the side of the bracket (103) away from the loading platform (2); the first fixed platform (401) is installed on the first vertical moving slide rail (402) and moves along the first vertical moving slide rail (402); the first fixed platform (401) is provided with a suction cup. The first visual inspection marking device (11) is installed on the side of the bracket (103) away from the loading table (2) and opposite to the first vertical moving slide rail (402). The first visual inspection marking device (11) is used to detect and mark defects on the flexible circuit board (15) on the first fixed table (401) when the first fixed table (401) moves to the side of the bracket (103) away from the loading table (2). It also includes: a flipping device (5) placed on the panel (102) and a second detection device (6); The second detection device (6) is located between the first detection device (4) and the placement platform (14); the second detection device (6) is equipped with a suction cup; The flipping device (5) is located between the second detection device (6) and the first detection device (4); the flipping device (5) includes a flipping base (501), a flipping shaft (502) and a flipping plate (503). The flipping base (501) is mounted on the panel (102). The length direction of the flipping shaft (502) is the same as the second direction. The flipping shaft (502) is mounted on the flipping base (501). The flipping plate (503) is connected to the flipping shaft (502). The flip plate (503) includes a first surface (5031) provided with a suction cup; when the flip plate (503) is flipped to the side closer to the second detection device (6), the first surface (5031) of the flip plate (503) faces downward and towards the second detection device (6); when the flip plate (503) is flipped to the side closer to the first detection device (4), the first surface (5031) of the flip plate (503) faces upward and is parallel to the first detection device (4); The second visual inspection marking device (12) is mounted on the bracket (103) and is used to inspect and mark defects on the flexible circuit board (15) on the second inspection device (6); The first moving device (3) is used to move the flexible circuit board (15) on the loading platform (2) to the first detection device (4), move the flexible circuit board (15) on the first detection device (4) to the flipping device (5), and move the flexible circuit board (15) on the second detection device (6) to the placement platform (14); The placement table (14) is provided with a good product area (1401) and a defective product area (1402). The first direction and the second direction are perpendicular to each other.

2. The flexible circuit board defect detection system according to claim 1, characterized in that, The panel (102) has a groove (104) and the loading platform (2) also includes a loading base plate (203), which is installed in the groove (104); The loading lifting mechanism (202) is installed on the loading base plate (203), and a telescopic rod (204) is connected between the loading base plate (203) and the loading platform (201).

3. The flexible circuit board defect detection system according to claim 1, characterized in that, The second detection device (6) includes a second fixed platform (601) and a second vertical moving slide rail (602); The second vertical moving slide rail (602) is set on the panel (102) and along the second direction and extends to the side of the bracket (103) away from the loading table (2). The second fixed table (601) is mounted on the second vertical moving slide rail (602) and moves along the second vertical moving slide rail (602). The second fixed table (601) is provided with a suction cup. The second visual inspection marking device (12) is installed on the side of the bracket (103) away from the loading platform (2) and opposite to the second vertical moving slide rail (602). The second visual inspection marking device (12) is used to detect and mark defects on the flexible circuit board (15) on the second fixed platform (601) when the second fixed platform (601) moves to the side of the bracket (103) away from the loading platform (2).

4. The flexible circuit board defect detection system according to claim 1, characterized in that, The first horizontal moving slide rail (301) includes a loading horizontal moving slide rail (3011) and a unloading horizontal moving slide rail (3012). The loading horizontal moving slide rail (3011) extends from the loading platform (2) to the flipping device (5), and the unloading horizontal moving slide rail (3012) extends from the second detection device (6) to the placement platform (14). The feeding horizontal moving slide rail (3011) is provided with two adsorption devices (302), wherein the adsorption device (302) closer to the feeding platform (2) is used to move the flexible circuit board (15) located on the feeding platform (2) to the first detection device (4), and the adsorption device (302) closer to the flipping device (5) is used to move the flexible circuit board (15) located on the first detection device (4) to the flipping device (5); The material feeding horizontal moving slide rail (3012) is provided with an adsorption device (302), which is used to move the flexible circuit board (15) on the second detection device (6) to the placement table (14).

5. The flexible circuit board defect detection system according to claim 1, characterized in that, It also includes a second moving device (13) for removing the protective paper (10) from the loading table (2) or placing the protective paper (10) on the loading table (2). The second moving device (13) includes a second horizontal moving slide rail (1301) and a protective paper adsorption device (1302). The second horizontal moving slide rail (1301) is mounted on the bracket (103) and extends along the first direction. The protective paper adsorption device (1302) includes a protective paper movable mounting plate (13021) and a protective paper adsorption lifting mechanism (13022). The protective paper movable mounting plate (13021) is mounted on the second horizontal moving slide rail (1301) and moves along the second horizontal moving slide rail (1301). The protective paper movable mounting plate (13021) is connected to the protective paper adsorption lifting mechanism (13022), and the protective paper adsorption lifting mechanism (13022) is connected to a suction cup.

6. The flexible circuit board defect detection system according to any one of claims 1-5, characterized in that, The first visual inspection marking device (11) includes a visual inspection marking mounting plate (1101), a visual camera (1102), a sliding table (1103), and a marking pen (1104). The visual inspection mark mounting plate (1101) is mounted on the bracket (103), and the visual camera (1102) and the slide table (1103) are connected to the visual inspection mark mounting plate (1101). The slide table (1103) includes a vertical slide rail (11031), a first slide table (11032), a horizontal slide rail (11033), and a second slide table (11034). The vertical slide rail (11031) is mounted on the visual inspection mark mounting plate (1101) and extends in a third direction, and the first slide table (11032) is mounted on the vertical slide rail (11031) and moves along the vertical slide rail (11031); The horizontal slide rail (11033) is mounted on the first slide table (11032) and extends in the first direction, and the second slide table (11034) is mounted on the horizontal slide rail (11033) and moves along the horizontal slide rail (11033); The marker pen (1104) is mounted on the second slide (11034); Wherein, the third direction is perpendicular to both the first direction and the second direction.

7. The flexible circuit board defect detection system according to claim 6, characterized in that, The first visual detection marking device (11) also includes an illumination device (1105) arranged around the visual camera (1102).

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