Multi-aspect comprehensive measurement flexible circuit board defect detector

Abstract

The invention relates to the field of circuit board defect detection, in particular to a multi-aspect comprehensive measurement flexible circuit board defect detector which comprises a conveying machine tool, a shading cabin and the like. According to the multi-aspect comprehensive measurement flexible circuit board defect detector disclosed by the invention, a display screen marks defect areas in a circuit board, and meanwhile, an annular illuminating lamp and a first linear laser lamp respectively irradiate and show different defect areas in the circuit board in different forms of light rays; an operator can quickly find a defect area and a corresponding defect type in the circuit board, and finally, the operator only needs to use a marking pen connected to the infusion apparatus to mark the defect area under the irradiation of corresponding light rays, so that the marking processing efficiency of the operator on the defects on the circuit board is improved; the defects that an operator needs to continuously contrast a display screen to find a short-circuit area and an open-circuit area in a circuit board, the whole operation steps are tedious, and the phenomena of missed marking and wrong marking are prone to occurring are overcome.

Description

Technical Field

[0001] The present invention relates to the field of circuit board defect detection, and particularly to a flexible circuit board defect detector for multi-faceted comprehensive measurement. Background Art

[0002] Circuit board defect detection is a crucial link in the electronic manufacturing process. Its purpose is to ensure the quality and reliability of the circuit board. After the operator puts the circuit boards into the detection instrument one by one, the detection instrument uses a visual image sensor to identify the short-circuit defects and open-circuit defects in the circuit board, and marks the short-circuit areas and open-circuit areas in the circuit board with circles on the display screen. Subsequently, the operator checks the circles on the display screen corresponding to the circuit board, checks and marks the short-circuit areas and open-circuit areas in the circuit board, so that in the subsequent repair work of the circuit board, the repair personnel can rely on the marks to identify the repair areas required for the circuit board. The entire operation step requires the operator to constantly check the display screen to find the short-circuit areas and open-circuit areas in the circuit board, and perform checking and marking processing on the short-circuit areas and open-circuit areas in the circuit board. The operation steps are cumbersome, and there are prone to missing marks and mis-marks, which affect the defect detection efficiency of the circuit board. Summary of the Invention

[0003] In order to overcome the shortcomings that the operator needs to constantly check the display screen to find the short-circuit areas and open-circuit areas in the circuit board, the entire operation step is cumbersome, and there are prone to missing marks and mis-marks, the present invention provides a flexible circuit board defect detector for multi-faceted comprehensive measurement.

[0004] Technical solution of the present invention: A flexible circuit board defect detector for multi-faceted comprehensive measurement, comprising a transfer machine tool, a light-shielding cabin, a visual image sensor, a multi-light source emitter, a longitudinal electric control slider, a transverse electric control slider, an infusion device, an infusion telescopic tube, a marking pen, an annular lighting lamp, an electric control rotating ring and a first linear laser lamp; a baffle is slidably connected to the transfer machine tool; an electric control lifting slider for controlling the up and down movement of the baffle is installed on the transfer machine tool; the telescopic end of the electric control lifting slider is fixedly connected to the baffle; a display screen is installed on the baffle; a light-shielding cabin is fixedly connected to the transfer machine tool; a visual image sensor for defect detection of the circuit board is installed on the light-shielding cabin; a multi-light source emitter for emitting light of different wavelengths to the circuit board is installed on the light-shielding cabin; not less than two longitudinal guide rails are slidably connected to the light-shielding cabin; not less than two longitudinal electric control sliders are slidably connected to the longitudinal guide rails; a transverse guide rail is fixedly connected to the longitudinal electric control slider; a transverse electric control slider is slidably connected to the transverse guide rail; an infusion device is fixedly connected to the transverse electric control slider; a first liquid inlet is connected to the infusion device; an infusion telescopic tube is connected to the infusion device; marking pens are respectively connected to the infusion telescopic tubes; a first liquid outlet button is provided on the marking pen; a tension spring is fixedly connected between the marking pen and the corresponding infusion device; an annular lighting lamp is fixedly connected to the infusion device; the infusion device is rotatably connected to an electric control rotating ring; two first linear laser lamps symmetrical to each other with respect to the axis of the electric control rotating ring are installed on the electric control rotating ring, and the annular lighting lamp surrounds the outside of the first linear laser lamp.

[0005] As a preferred technical solution of the present invention, a plug rod is fixedly connected to the infusion device; the lower ends of the plug rods are respectively inserted into the corresponding marking pens.

[0006] As a preferred technical solution of the present invention, a light condensing outer cylinder is provided below the annular lighting lamp.

[0007] As a preferred technical solution of the present invention, a light condensing inner cylinder is provided below the annular lighting lamp, and the annular lighting lamp is located between the light condensing outer cylinder and the light condensing inner cylinder.

[0008] As a preferred technical solution of the present invention, the light condensing inner cylinder is set as a telescopic structure, a counterweight block is fixedly connected to the bottom of the light condensing inner cylinder; a first vertical tube is fixedly connected to the annular lighting lamp; a second vertical tube is fixedly connected to the infusion device; a pull rope is fixedly connected to the counterweight block; the pull rope passes through the first vertical tube and the second vertical tube in sequence and is fixedly connected to the corresponding marking pen.

[0009] As a preferred technical solution of the present invention, the annular lighting lamp uses a two-color lighting bulb and can emit light of two colors respectively.

[0010] As a preferred technical solution of the present invention, a touch capacitive switch for controlling the light color switching of the annular lighting lamp is provided on the first liquid outlet button of the marking pen.

[0011] As a preferred technical solution of the present invention, the marker pen uses a dual-channel nozzle structure. The first liquid outlet button controls the opening and closing of the first channel of the marker pen, and the marker pen is provided with a second liquid outlet button for controlling the opening and closing of the second channel. The infusion device uses a dual infusion channel structure. The inlet end of the first infusion channel structure of the infusion device is connected to the first liquid inlet, the outlet end of the first infusion channel structure of the infusion device is connected to the first channel of the marker pen, the inlet end of the second infusion channel structure of the infusion device is connected to the second liquid inlet, and the outlet end of the second infusion channel structure of the infusion device is connected to the second channel of the marker pen. The first liquid inlet and the second liquid inlet of the infusion device are respectively connected to two different color marking liquid delivery devices.

[0012] As a preferred technical solution of the present invention, two second linear laser lights that are symmetrical to each other with the axis of the electric control rotating ring as the center are installed on the electric control rotating ring; two third linear laser lights that are symmetrical to each other with the axis of the electric control rotating ring as the center are installed on the electric control rotating ring.

[0013] As a preferred technical solution of the present invention, both the width and length of the second linear laser light are smaller than those of the first linear laser light; both the width and length of the third linear laser light are smaller than those of the second linear laser light.

[0014] Beneficial effects: The flexible circuit board defect detector for multi-faceted comprehensive measurement of the present invention first takes pictures of the circuits on the circuit board through the visual image sensor in the light-shielding cabin, and compares the circuits captured on the target circuit board with those on the standard circuit board, so as to identify the short-circuit defects and open-circuit defects that occur in the circuits on the target circuit board. Then, the short-circuit areas and open-circuit areas in the circuit board are marked with colored rings through the display screen. At the same time, the short-circuit areas and open-circuit areas in the circuit board are respectively illuminated and shown by different forms of light using the annular lighting lamps and the first linear laser lights provided on each infusion device, enabling the operator to quickly find the defective areas and corresponding defect types in the circuit board. Finally, the operator only needs to use the marker pen connected to the infusion device to mark the defective areas under the corresponding light irradiation, improving the efficiency of the operator's marking and processing of the defects on the circuit board, and overcoming the disadvantages that the operator needs to constantly refer to the display screen to find the short-circuit areas and open-circuit areas in the circuit board, the whole operation steps are cumbersome, and there are easily missed marking and mis-marking phenomena. Description of the Drawings

[0015] Figure 1 Is a three-dimensional view of the present invention; Figure 2 Is a three-dimensional view of the light-shielding cabin of the present invention; Figure 3 Is a three-dimensional view of the infusion device of the present invention; Figure 4 Is a three-dimensional sectional view of the condenser outer cylinder and the condenser inner cylinder of the present invention; Figure 5 This is a three-dimensional sectional view of the light-condensing outer cylinder of the present invention; Figure 6 This is a bottom view of the annular lighting lamp and the first linear laser lamp of the present invention; Figure 7 This is a three-dimensional view of the drawstring of the present invention; Figure 8 This is a three-dimensional view of the baffle of the present invention.

[0016] Markings in the figure: 11 - transfer machine tool, 12 - baffle, 13 - electrically controlled lifting slider, 14 - display screen, 21 - light-shielding cabin, 22 - visual image sensor, 23 - multi-light source emitter, 31 - longitudinal guide rail, 32 - longitudinal electrically controlled slider, 33 - transverse guide rail, 34 - transverse electrically controlled slider, 35 - infusion device, 351 - first liquid inlet, 352 - second liquid inlet, 36 - infusion telescopic tube, 37 - marker pen, 371 - first liquid outlet button, 372 - second liquid outlet button, 38 - tension spring, 39 - insertion rod, 41 - annular lighting lamp, 42 - electrically controlled rotating ring, 431 - first linear laser lamp, 432 - second linear laser lamp, 433 - third linear laser lamp, 51 - light-condensing outer cylinder, 52 - light-condensing inner cylinder, 53 - counterweight, 54 - first vertical tube, 55 - second vertical tube, 56 - drawstring. Specific embodiments

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.

[0018] Embodiment 1 A flexible circuit board defect detector for multi-faceted comprehensive measurement, such as Figures 1-8As shown in the figure, it includes a transfer machine tool 11, a light-shielding cabin 21, a visual image sensor 22, a multi-light source emitter 23, a longitudinal electric control slider 32, a transverse electric control slider 34, an infusion device 35, an infusion telescopic tube 36, a marker pen 37, an annular illumination lamp 41, an electric control rotary ring 42, and a first linear laser lamp 431; the transfer machine tool 11 is set as an inclined structure facing forward and downward; a baffle 12 is slidably connected to the front lower part of the transfer machine tool 11; two electric control lifting sliders 13 are installed on the transfer machine tool 11; the telescopic ends of the two electric control lifting sliders 13 are commonly fixedly connected to the baffle 12; a display screen 14 is installed on the baffle 12; a light-shielding cabin 21 is fixedly connected to the front side of the transfer machine tool 11; a visual image sensor 22 for defect detection of the circuit board is installed on the light-shielding cabin 21; a multi-light source emitter 23 that emits light of different wavelengths to the circuit board is installed on the light-shielding cabin 21. The multi-light source emitter 23 irradiates the surface of the circuit board with light of different wavelengths. At the same time, the visual image sensor 22 identifies defects by observing the changes in the reflected light of different wavelengths, conducts multi-faceted comprehensive measurements, combines algorithm analysis of image data, and realizes fast and accurate defect detection, which is an existing mature circuit board defect recognition technology; two longitudinal guide rails 31 are slidably connected to the light-shielding cabin 21; two longitudinal electric control sliders 32 are slidably connected to each of the two longitudinal guide rails 31; a transverse guide rail 33 is fixedly connected to each longitudinal electric control slider 32; a transverse electric control slider 34 is slidably connected to each transverse guide rail 33; an infusion device 35 is fixedly connected to each transverse electric control slider 34; a first liquid inlet 351 is connected to each infusion device 35, and the first liquid inlet 351 is externally connected to a marking liquid delivery device; an infusion telescopic tube 36 is connected to each infusion device 35; a marker pen 37 is connected to each infusion telescopic tube 36; a first liquid outlet button 371 is provided on each marker pen 37; a tension spring 38 is commonly fixedly connected between each marker pen 37 and the corresponding infusion device 35; a plug rod 39 is fixedly connected to each infusion device 35; the lower end of each plug rod 39 is inserted into the corresponding marker pen 37 respectively, so that the marker pen 37 is initially fixed on the plug rod 39; an annular illumination lamp 41 is fixedly connected to each infusion device 35; an electric control rotary ring 42 is rotatably connected to each infusion device 35; two first linear laser lamps 431 that are symmetrical with each other about the axis of the electric control rotary ring 42 are installed on each electric control rotary ring 42, and the annular illumination lamp 41 surrounds the outside of the first linear laser lamp 431.

[0019] As Figure 4 , Figure 5 and Figure 7As shown in the figure, a homogeneous light - collecting outer cylinder 51 and a light - collecting inner cylinder 52 are provided below each annular lighting lamp 41, and the annular lighting lamp 41 is located between the light - collecting outer cylinder 51 and the light - collecting inner cylinder 52; each light - collecting inner cylinder 52 is set as a telescopic structure, and a counterweight 53 is fixedly connected to the bottom of the light - collecting inner cylinder 52; two first vertical tubes 54 are fixedly connected to each annular lighting lamp 41; two second vertical tubes 55 are fixedly connected to each infusion set 35; two pull ropes 56 are fixedly connected to each counterweight 53; each pull rope 56 passes through the first vertical tube 54 and the second vertical tube 55 in sequence and is fixedly connected to the corresponding marking pen 37.

[0020] Each annular lighting lamp 41 uses a two - color lighting bulb, which can emit two colors of light respectively. In this embodiment, red light and white light are taken as examples; a touch - type capacitive switch is provided on the first liquid - discharging button 371 of each marking pen 37, and the touch - type capacitive switch is electrically connected to the annular lighting lamp 41 through a circuit system to control the light - color switching thereof.

[0021] The multi - aspect comprehensive measurement working steps of a multi - aspect comprehensive measurement flexible circuit board defect detector of the present invention are as follows. First, the manipulator places each circuit board to be detected and processed on the transfer machine tool 11 one by one. The transfer machine tool 11 sequentially conveys the circuit board forward to the lower part of the light - shielding cabin 21. Subsequently, the electric - control lifting slider 13 pushes the baffle 12 upward, so that the transfer machine tool 11 conveys the circuit board forward until it is close to the baffle 12. After the transfer machine tool 11 stops conveying the circuit board, the vision image sensor 22 and the multi - light - source emitter 23 cooperate to perform multi - aspect comprehensive measurement on the surface of the circuit board, identify the short - circuit defects and open - circuit defects existing on the surface of the circuit board, and mark the short - circuit area and the open - circuit area in the circuit board with red rings through the display screen 14.

[0022] Meanwhile, each longitudinal electric control slider 32 inside the lower part of the light-shielding cabin 21 drives the transverse guide rail 33 and the transverse electric control slider 34 to move back and forth in the horizontal direction along the longitudinal guide rail 31 respectively. At the same time, each transverse electric control slider 34 drives the infusion device 35 connected thereto to move left and right in the horizontal direction along the transverse guide rail 33 respectively, so as to adjust the positions of the infusion device 35 and the marking pen 37 until the position on the circuit board pointed by each marking pen 37 corresponds to the short-circuit area or open-circuit area that appears on the circuit board in the display screen 14. At the same time, the annular lighting lamp 41 on each infusion device 35 irradiates red light downward, and the downward-irradiated red light is irradiated on the corresponding area of the circuit board in the form of a red ring under the limitation of the condenser outer cylinder 51 and the condenser inner cylinder 52, and the red ring shown in the display screen 14 is irradiated on the corresponding area of the circuit board in the form of a red ring, so as to mark the corresponding defective area on the circuit board. And when the red ring irradiated by a certain annular lighting lamp 41 corresponds to the open-circuit area of the circuit board, the two first linear laser lamps 431 on the infusion device 35 corresponding to the annular lighting lamp 41 will irradiate linear laser lines on the open-circuit area of the circuit board. At the same time, the electric control rotating ring 42 will drive the two first linear laser lamps 431 to rotate, so that the irradiated linear laser lines are aligned with the parts where additional circuits need to be opened in the open-circuit area of the circuit board, and by irradiating red rings and linear laser lines on the circuit board, the operator can quickly find the defective areas and the types of defects that appear on the circuit board, and improve the efficiency of the operator in finding defects on the circuit board.

[0023] The defect marking working steps of a flexible circuit board defect detector for multi-faceted comprehensive measurement of the present invention are as follows. After marking the corresponding defect areas and defect types on the circuit board by irradiating a red ring and a linear laser line on the circuit board through the cooperation of the annular lighting lamp 41 and the first linear laser lamp 431, the operator only needs to pull each marking pen 37 successively by hand to move the infusion telescopic tube 36 downward. At the same time, the marking pen 37 pulls the tension spring 38 downward to stretch, so that the liquid outlet port of the marking pen 37 contacts the surface of the circuit board downward. At the same time, the marking pen 37 pulls the pull rope 56 to move along the first vertical tube 54 and the second vertical tube 55. The pull rope 56 pulls the counterweight 53 to drive the condenser inner cylinder 52 to contract upward. At the same time, the operator's finger touches the touch capacitive switch on the first liquid outlet button 371 of the marking pen 37, and the annular lighting lamp 41 will switch the emitted light color to a brighter white. At this time, the light emitted from the annular lighting lamp 41 will also lose the shielding from the condenser inner cylinder 52. Therefore, the light emitted from the annular lighting lamp 41 will irradiate the corresponding defect area on the circuit board in the form of a white solid circle, enabling the operator to more clearly observe and check whether there are defects that need to be repaired in the corresponding area of the circuit board. The externally connected marking liquid delivery device successively delivers the marking liquid into the marking pen 37 through the infusion device 35 and the infusion telescopic tube 36. After the operator presses the first liquid outlet button 371 of the marking pen 37, the marking liquid will flow out of the marking pen 37 onto the surface of the circuit board. The operator controls the marking pen 37 to mark a circular ring on the defective area on the surface of the circuit board. And when a linear laser line appears in the open circuit area on the circuit board, the operator can also control the marking pen 37 to draw a linear mark at the part where an additional circuit needs to be opened in the open circuit area on the surface of the circuit board, enabling the operator to quickly mark the defective area and the types of defects that appear on the circuit board, and improving the processing efficiency of the operator in marking the defects on the circuit board.

[0024] Embodiment 2 On the basis of Embodiment 1, as Figures 1-8As shown in the figure, each marker pen 37 in this embodiment uses a dual-channel nozzle structure. The first liquid outlet button 371 controls the opening and closing of the first channel of the marker pen 37, and the marker pen 37 is provided with a second liquid outlet button 372 for controlling the opening and closing of the second channel; each infusion device 35 uses a dual-infusion-channel structure. The inlet end of the first infusion-channel structure of the infusion device 35 is connected to the first liquid inlet 351, and the outlet end of the first infusion-channel structure of the infusion device 35 is connected to the first channel of the marker pen 37. The inlet end of the second infusion-channel structure of the infusion device 35 is connected to a second liquid inlet 352, and the outlet end of the second infusion-channel structure of the infusion device 35 is connected to the second channel of the marker pen 37; the first liquid inlet 351 and the second liquid inlet 352 of the infusion device 35 are respectively connected to two different-color marking liquid conveying devices; the two different-color marking liquid conveying devices respectively convey two different-color marking liquids to the first channel and the second channel of the marker pen 37 through the first liquid inlet 351 and the second liquid inlet 352 of the infusion device 35. Subsequently, the operator only needs to press the first liquid outlet button 371 and the second liquid outlet button 372 on the marker pen 37 respectively, and the marker pen 37 can spray two different-color marking liquids respectively, realizing the marking of different-color marks on the surface of the circuit board. For example, red represents a short-circuit mark, and yellow represents an open-circuit mark, enabling the repair personnel to quickly identify the type of repair required for the circuit board based on the color of the mark during the subsequent repair work.

[0025] Embodiment 3 On the basis of Embodiment 2, as Figures 1-8 shown in the figure, each electric control rotating ring 42 in this embodiment is equipped with two second linear laser lights 432 that are symmetric with each other about the axis of the electric control rotating ring 42; each electric control rotating ring 42 is equipped with two third linear laser lights 433 that are symmetric with each other about the axis of the electric control rotating ring 42; the width and length of each second linear laser light 432 are both smaller than the width and length of the first linear laser light 431; the width and length of each third linear laser light 433 are both smaller than the width and length of the second linear laser light 432; the first linear laser light 431, the second linear laser light 432, and the third linear laser light 433 can respectively emit linear laser indication lines with different widths and lengths to the surface of the circuit board, realizing the emission of linear laser indication lines with corresponding sizes to the circuit board according to the path sizes of the circuits in different circuit boards, enabling the operator to more intuitively observe the positions in the circuit board that need to be marked as open circuits.

[0026] Although the present disclosure has been described only with respect to a limited number of embodiments, those skilled in the art who benefit from the present disclosure will understand that various other embodiments can be designed without departing from the scope of the present invention. Therefore, the scope of the present invention should be limited only by the appended claims.

Claims

1. A flexible circuit board defect detector for multi-faceted comprehensive measurement, comprising: a transfer machine tool (11); a light-shielding cabin (21) fixedly connected to the transfer machine tool (11); a visual image sensor (22) for defect detection of the circuit board installed on the light-shielding cabin (21); a multi-light source emitter (23) for emitting light of different wavelengths to the circuit board installed on the light-shielding cabin (21). It is characterized in that: It further comprises a longitudinal electric control slider (32); a baffle (12) is slidably connected to the transfer machine tool (11); an electric control lifting slider (13) for controlling the up-and-down movement of the baffle (12) is installed on the transfer machine tool (11); the telescopic end of the electric control lifting slider (13) is fixedly connected to the baffle (12); a display screen (14) is installed on the baffle (12); not less than two longitudinal guide rails (31) are slidably connected to the light-shielding cabin (21); not less than two longitudinal electric control sliders (32) are slidably connected to the longitudinal guide rails (31); a transverse guide rail (33) is fixedly connected to the longitudinal electric control slider (32); a transverse electric control slider (34) is slidably connected to the transverse guide rail (33); an infusion device (35) is fixedly connected to the transverse electric control slider (34); a first liquid inlet (351) is connected to the infusion device (35); an infusion telescopic tube (36) is connected to the infusion device (35); a marking pen (37) is connected to each of the infusion telescopic tubes (36); a first liquid outlet button (371) is provided on the marking pen (37); a tension spring (38) is fixedly connected between the marking pen (37) and the corresponding infusion device (35); an annular lighting lamp (41) is fixedly connected to the infusion device (35); the infusion device (35) is rotatably connected to an electric control rotating ring (42); two first linear laser lamps (431) symmetric with respect to the axis of the electric control rotating ring (42) are installed on the electric control rotating ring (42), and the annular lighting lamp (41) surrounds the first linear laser lamps (431) on the outside.

2. The flexible circuit board defect detector for multi-faceted comprehensive measurement according to claim 1, wherein: An insertion rod (39) is fixedly connected to the infusion device (35); the lower ends of the insertion rods (39) are respectively inserted into the corresponding marking pens (37).

3. The flexible circuit board defect detector for multi-faceted comprehensive measurement according to claim 1, characterized in that: A condenser outer cylinder (51) is provided below the annular lighting lamp (41).

4. A flexible circuit board defect detector for multi-faceted comprehensive measurement according to claim 3, characterized in that: A condenser inner cylinder (52) is provided below the annular lighting lamp (41), and the annular lighting lamp (41) is located between the condenser outer cylinder (51) and the condenser inner cylinder (52).

5. The flexible circuit board defect detector for multi-faceted comprehensive measurement according to claim 4, characterized in that: The condenser inner cylinder (52) is of a telescopic structure, a counterweight block (53) is fixedly connected to the bottom of the condenser inner cylinder (52); a first vertical tube (54) is fixedly connected to the annular lighting lamp (41); a second vertical tube (55) is fixedly connected to the infusion device (35); a pull rope (56) is fixedly connected to the counterweight block (53); the pull rope (56) passes through the first vertical tube (54) and the second vertical tube (55) in sequence and is fixedly connected to the corresponding marking pen (37).

6. The flexible circuit board defect detector for multi-faceted comprehensive measurement according to claim 1, characterized in that: The annular lighting lamp (41) uses a two-color lighting bulb.

7. A flexible circuit board defect detector for multi-faceted comprehensive measurement according to claim 6, characterized in that: A touch capacitive switch for controlling the light color switching of the annular lighting lamp (41) is provided on the first liquid outlet button (371) of the marking pen (37).

8. A flexible circuit board defect detector for multi-faceted comprehensive measurement according to claim 1, characterized in that: The marker pen (37) uses a dual-channel nozzle structure. The first liquid outlet button (371) controls the opening and closing of the first channel of the marker pen (37), and the marker pen (37) is provided with a second liquid outlet button (372) for controlling the opening and closing of the second channel; the infusion device (35) uses a dual-infusion channel structure. The inlet end of the first infusion channel structure of the infusion device (35) is connected to the first liquid inlet (351), the outlet end of the first infusion channel structure of the infusion device (35) is connected to the first channel of the marker pen (37), the inlet end of the second infusion channel structure of the infusion device (35) is connected to the second liquid inlet (352), and the outlet end of the second infusion channel structure of the infusion device (35) is connected to the second channel of the marker pen (37); the first liquid inlet (351) and the second liquid inlet (352) of the infusion device (35) are respectively connected to two different color marking liquid delivery devices.

9. A flexible circuit board defect detector for multi-faceted comprehensive measurement according to any one of claims 1-8, characterized in that: Two second linear laser lights (432) that are symmetric with each other about the axis of the electric control swivel ring (42) are installed on the electric control swivel ring (42); two third linear laser lights (433) that are symmetric with each other about the axis of the electric control swivel ring (42) are installed on the electric control swivel ring (42).

10. A flexible circuit board defect detector for multi-faceted comprehensive measurement according to claim 9, characterized in that: Both the width and length of the second linear laser light (432) are smaller than those of the first linear laser light (431); both the width and length of the third linear laser light (433) are smaller than those of the second linear laser light (432).

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