An LED packaging defect detection device

Abstract

This invention discloses an LED packaging defect detection device. The detection device includes a back-side acquisition component, a front-side acquisition component, a data processing module, a feeding component, and a conveying and discharging component. The back-side acquisition component includes a back-side acquisition part. The detection station of the detection device is set between the back-side acquisition component and the front-side acquisition component. The front-side acquisition component includes a liftable front-side acquisition part. The feeding component is used to push the LED packaging board to the detection station, and the conveying and discharging component is used to remove the LED packaging board from the detection station. The feeding component feeds the LED packaging board into the detection station, the back-side acquisition component acquires image data of the back side of the LED packaging board, and the front-side acquisition component acquires image data of the front side of the LED packaging board. The data processing module receives and processes the information acquired by the back-side acquisition component and the front-side acquisition component, and the conveying and discharging component removes the LED packaging board from the detection station. This invention can be widely applied in the field of LED packaging technology.

Description

Technical Field

[0001] This invention relates to the field of LED packaging technology, and in particular to a device for detecting defects in LED packaging. Background Technology

[0002] LED is the abbreviation for Light Emitting Diode, a semiconductor light-emitting diode. LED packaging refers to the packaging of the light-emitting chip, which differs significantly from integrated circuit packaging. LED packaging not only needs to protect the chip but also allow light to pass through. Therefore, LED packaging has special requirements for packaging materials. The function of packaging is to provide sufficient protection for the chip, preventing it from failing due to long-term exposure to air or mechanical damage, thereby improving the chip's stability. For LED packaging, good light extraction efficiency and good heat dissipation are also necessary. Good packaging allows LEDs to have better luminous efficiency and a better heat dissipation environment, thus extending the LED's lifespan.

[0003] After LED encapsulation, several defects exist, primarily including: excessive glue on the front side (too much glue, with the glue surface bulging above the cup surface); insufficient glue on the front side (too little glue, with the glue surface sunken or exposing gold wires or conduits); glue leakage on the front side; glue overflow on the front side (glue spills onto the cup surface, or glue adheres to the cup surface); foreign matter presence (contamination points larger than 0.3mm on the glue surface); air bubbles (air bubbles on the glue surface indicate a defect); gold wire popping up (gold wires protruding from the glue surface); dark cracks on the back side; and glue on the back side. Currently, the detection method for these defects mainly relies on manual sampling, which is inefficient and has a high false positive rate. Summary of the Invention

[0004] To solve at least one of the above-mentioned technical problems, the present invention provides an LED packaging defect detection device, the technical solution of which is as follows:

[0005] The LED packaging defect detection device provided by this invention includes a detection station and comprises a back-side acquisition component, a front-side acquisition component, a data processing module, a feeding component, and a conveying and discharging component. The back-side acquisition component includes a back-side acquisition part. The detection station is located between the back-side acquisition part and the front-side acquisition part. The front-side acquisition component includes a liftable front-side acquisition part. The data processing module is used to process the image data acquired by the back-side acquisition component and the front-side acquisition component. The feeding component is used to push the LED packaging board to the detection station. The conveying and discharging component is used to remove the LED packaging board from the detection station.

[0006] In some embodiments of the present invention, the testing device includes a conveying and guiding assembly, the feeding assembly pushes the LED packaging board into the conveying and guiding assembly, the conveying and guiding assembly includes a guiding support component, the feeding assembly pushes the LED packaging board to move along the guiding support component, and the conveying and discharging assembly drives the LED packaging board to move along the guiding support component.

[0007] In some embodiments of the present invention, the detection device includes a front pressing edge assembly, the front pressing edge assembly including a liftable front pressing component, the front pressing component being used to fix the LED encapsulation board onto the guide support component.

[0008] In some embodiments of the present invention, the conveying and guiding assembly includes a feeding guide, which is disposed at the feeding end of the guiding support member. The feeding guide includes two guiding rollers, which roll to allow the LED encapsulation board to enter the conveying and guiding assembly from between the two guiding rollers.

[0009] In some embodiments of the present invention, the conveying and guiding assembly includes a guide cover plate disposed on the guide support member, and a space is provided between the guide cover plate and the guide support member for guiding the movement of the LED encapsulation board.

[0010] In some embodiments of the present invention, the testing device includes a front shield assembly, the testing station being located between the feeding assembly and the front shield assembly, the front shield assembly including a front shield component for abutting against the LED encapsulation board.

[0011] In some embodiments of the present invention, the windshield assembly includes a windshield telescopic driver and a windshield lift driver, the windshield component is disposed at the output end of the windshield telescopic driver, and the windshield telescopic driver is disposed at the output end of the windshield lift driver.

[0012] In some embodiments of the present invention, the rear-side acquisition component includes a rear-side auxiliary light source, which moves synchronously with the rear-side acquisition component.

[0013] In some embodiments of the present invention, the front acquisition component includes a front auxiliary light source and a front ring light source, and the front auxiliary light source and the front ring light source move synchronously with the front acquisition component.

[0014] The embodiments of the present invention have at least the following beneficial effects: the feeding component delivers the LED packaging board into the inspection station; the back-side image acquisition component acquires image data of the back side of the LED packaging board; the front-side image acquisition component acquires image data of the cup side of the LED packaging board; the data processing module receives and processes the information acquired by the back-side and front-side image acquisition components; and the conveying and unloading component removes the LED packaging board from the inspection station. The present invention can be widely applied in the field of LED packaging technology. Attached Figure Description

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a structural diagram of the testing equipment;

[0017] Figure 2 This is a structural diagram of the back-side data acquisition component;

[0018] Figure 3 This is a structural diagram of the front-facing data acquisition component;

[0019] Figure 4 Structural diagram of the conveyor guide assembly and the front pressure edge assembly;

[0020] Figure 5 This is a structural diagram of the front pressure edge assembly;

[0021] Figure 6 This is a structural diagram of the windshield assembly;

[0022] Figure 7 This is a structural diagram of the material conveying and discharging assembly.

[0023] Figure label:

[0024] 100. Rear-side acquisition component; 101. Rear-side acquisition part; 102. Rear-side auxiliary light source; 103. First motor;

[0025] 200. Front acquisition component; 201. Front acquisition part; 202. Front auxiliary light source; 203. Front ring light source; 204. Second lifting motor; 205. Second horizontal motor;

[0026] 300. Feeding assembly;

[0027] 400. Front windshield assembly; 401. Front windshield component; 402. Front windshield telescopic actuator; 403. Front windshield lift actuator;

[0028] 501. Guide support component; 502. Fifth motor; 503. Fifth guide rail; 504. Guide cover plate; 505. Feed guide component;

[0029] 600. Front pressing edge assembly; 601. Front pressing component; 602. Sixth lifting drive;

[0030] 700. Conveying and discharging assembly; 701. Guide rail mounting plate; 702. Discharging guide rail; 703. Seventh motor; 704. Seventh slide table; 705. Seventh limit component; 706. Seventh lifting driver;

[0031] 800, Platform Installation Board. Detailed Implementation

[0032] The following is combined Figures 1 to 7 Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of this invention, it should be understood that the terms "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Features defined with "first" and "second" are used to distinguish feature names and do not have special meanings. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description 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 this invention based on the specific circumstances.

[0035] This invention relates to an LED packaging defect detection device. The detection device is equipped with a detection station and includes a feeding component 300 and a conveying and discharging component 700. The feeding component 300 pushes the LED packaging board to the detection station. After detection, the conveying and discharging component 700 removes the LED packaging board from the detection station and sends it to the next process. Referring to the accompanying drawings, the detection device includes a platform mounting plate 800, on which the feeding component 300 and the conveying and discharging component 700 are mounted.

[0036] Specifically, the testing equipment includes a back-side acquisition component 100 and a front-side acquisition component 200. The testing station is located between the back-side acquisition component 100 and the front-side acquisition component 200. After the LED packaging board is placed at the testing station, the back-side acquisition component 100 is used to acquire image information of the back side of the LED packaging board, and the front-side acquisition component 200 is used to acquire image information of the front surface of the LED packaging board. Referring to the attached drawings, the back-side acquisition component 100 is located on the upper side of the platform mounting plate 800, and the front-side acquisition component 200 is located on the lower side of the platform mounting plate 800.

[0037] Furthermore, the detection device includes a data processing module for processing image data acquired by the rear acquisition component 100 and the front acquisition component 200. It is understood that the detection device includes a control unit for coordinating the functions of various parts of the detection device, and the data processing module is part of the control unit.

[0038] The back-side acquisition assembly 100 includes a back-side acquisition component 101, which is communicatively connected to the data processing module. The back-side acquisition component 101 is positioned above the inspection station and functions as a camera. A control device manipulates the back-side acquisition component 101 to capture images of the back side of the LED encapsulation board. Furthermore, the back-side acquisition component 101 is movable to adjust its position above the inspection station. Referring to the accompanying drawings, a first moving component drives the back-side acquisition component 101 to move along a horizontal plane.

[0039] Specifically, the back-side acquisition component 101 includes a first motor 103 and a first moving component. The output end of the first motor 103 is connected to the first moving component, and the back-side acquisition component 101 is connected to the output end of the first moving component. A control device manipulates the first motor 103 to cause the first moving component to drive the back-side acquisition component 101 to move. Referring to the accompanying drawings, the back-side acquisition component 100 includes a first mounting frame, the first moving component is mounted on the first mounting frame, and the first mounting frame is mounted on the platform mounting plate 800.

[0040] The first moving component includes a first slide, a first guide rail, and a first drive unit. The first drive unit is connected to the output end of the first motor 103 and is configured as a lead screw or a transmission belt. The first drive unit drives the first slide to move along the first guide rail. The rear acquisition component 101 is connected to the first slide. In some examples, the first moving component is configured as a double linear guide slide.

[0041] Furthermore, the back-side acquisition component 100 includes a back-side auxiliary light source 102. The back-side auxiliary light source 102 is used to highlight defects on the LED packaging board, thereby obtaining a clear image and reducing the false positive rate. The back-side auxiliary light source 102 is configured as a strip light source. Referring to the accompanying drawings, the back-side acquisition component 101 is positioned above the back-side auxiliary light source 102, which is positioned above the inspection station. Two back-side auxiliary light sources 102 are configured, and both are tilted downwards to illuminate the inspection station. In some examples, the back-side auxiliary light sources 102 are installed at a 45° angle relative to the horizontal plane.

[0042] It is understood that the rear auxiliary light source 102 moves synchronously with the rear acquisition component 101 to maintain their relative positions. Specifically, the rear auxiliary light source 102 is connected to the output end of the first moving component so that the first moving component drives the rear auxiliary light source 102 and the rear acquisition component 101 to move simultaneously.

[0043] The front-facing acquisition component 200 includes a front-facing acquisition unit 201, which is communicatively connected to the data processing module. The front-facing acquisition unit 201 is positioned below the inspection station and functions as a camera. A control device manipulates the front-facing acquisition unit 201 to capture images of the surface of the LED beads within the LED packaging board cup. Furthermore, considering the varying cup heights of different LED packaging board models, the front-facing acquisition unit 201 is designed to be height-adjustable. This means that the front-facing acquisition unit 201 is raised or lowered according to the thickness of the LED packaging board or the cup height to allow it to focus on the surface of the LED packaging board. This self-adaptive focusing is achieved through an image processing algorithm.

[0044] Specifically, the front-facing acquisition component 200 includes a second lifting motor 204 and a second lifting assembly. The output end of the second lifting motor 204 is connected to the second lifting assembly, and the front-facing acquisition component 201 is connected to the output end of the second lifting assembly. A control device manipulates the second lifting motor 204 to cause the second lifting assembly to move the front-facing acquisition component 201. Referring to the accompanying drawings, the second lifting assembly includes a second lifting slide, a second lifting guide rail, and a second lifting drive component. The second lifting drive component is connected to the output end of the second lifting motor 204 and is configured as a lead screw or a transmission belt. The second lifting drive component drives the second lifting slide to move along the second lifting guide rail, and the front-facing acquisition component 201 is connected to the second lifting slide. In some examples, the second lifting assembly is configured as a double-track slide.

[0045] Furthermore, the front-facing acquisition component 201 can be moved horizontally to a position corresponding to the center of the LED encapsulation board. Specifically, the front-facing acquisition assembly 200 includes a second horizontal motor 205 and a second horizontal movement assembly. The output end of the second horizontal motor 205 is connected to the second horizontal movement assembly, and the second lifting assembly is connected to the output end of the second horizontal movement assembly. The control device manipulates the second horizontal motor 205 to cause the second horizontal movement assembly to drive the second lifting assembly to move, thereby driving the front-facing acquisition component 201 to move. Referring to the accompanying drawings, the front-facing acquisition assembly 200 includes a second mounting bracket, on which the second horizontal movement assembly is mounted. The second mounting bracket is located on the lower side of the platform mounting plate 800.

[0046] The second horizontal moving assembly includes a second horizontal slide, a second horizontal guide rail, and a second horizontal drive component. The second horizontal drive component is connected to the output end of the second horizontal motor 205 and is configured as a lead screw or a transmission belt. The second horizontal drive component drives the second horizontal slide to move along the second horizontal guide rail. The base plate of the second lifting assembly is connected to the second horizontal slide. In some examples, the second horizontal moving assembly is configured as a double-track slide.

[0047] Referring to the accompanying drawings, the front acquisition component 200 includes a front auxiliary light source 202, which is configured as a strip light source. The front auxiliary light source 202 is positioned below the detection station, and two front auxiliary light sources 202 are configured, both angled upwards to illuminate the detection station. In some examples, the front auxiliary light sources 202 are installed at a 45° angle relative to the horizontal plane. Further, the front acquisition component 200 includes a front ring light source 203, which is positioned below the detection station. Referring to the accompanying drawings, the front auxiliary light source 202 and the front ring light source 203 are positioned higher than the front acquisition component 201.

[0048] Understandably, the front auxiliary light source 202 and the front ring light source 203 are used to highlight the defects of the LED packaging board, thereby obtaining a clear image and reducing the false judgment rate. Furthermore, the front auxiliary light source 202 and the front ring light source 203 move synchronously with the front acquisition component 201 to maintain their relative positions. Specifically, the front auxiliary light source 202 and the front ring light source 203 are connected to the output end of the second lifting component, so that the second lifting component drives the front auxiliary light source 202, the front ring light source 203, and the front acquisition component 201 to move simultaneously.

[0049] The testing equipment includes a conveyor and guide assembly, and the testing station is located within the conveyor and guide assembly. Understandably, the feeding assembly 300 pushes the LED packaged board into the conveyor and guide assembly, and after testing, the conveyor and discharge assembly 700 moves the LED packaged board within the conveyor and guide assembly. Specifically, the conveyor and guide assembly includes a guide support component 501, which supports the LED packaged board. The feeding assembly 300 pushes the LED packaged board along the guide support component 501, and the conveyor and discharge assembly 700 moves the LED packaged board along the guide support component 501.

[0050] Referring to the accompanying drawings, two guide support components 501 are provided, arranged opposite each other to suspend and support the LED encapsulation board. Under the action of the feeding assembly 300 or the conveying and discharging assembly 700, the LED encapsulation board can move along the length direction of the guide support component 501. It can be understood that the distance between the two guide support components 501 is adjustable to accommodate the detection of LED encapsulation boards of different sizes. Referring to the accompanying drawings, the conveying and guiding assembly includes a fifth motor 502, a fifth guide rail 503, and a fifth slider. Specifically, one guide support component 501 is fixedly mounted on the platform mounting plate 800, and the other guide support component 501 is slidably connected to the fifth guide rail 503 via the fifth slider. The fifth guide rail 503 is mounted on the platform mounting plate 800. Under the operation of the control device, the fifth motor 502 drives one guide support component 501 to move closer to or further away from the other guide support component 501.

[0051] In some examples, the output end of the fifth motor 502 drives one of the guide support components 501 to move via a threaded transmission. Specifically, the output end of the fifth motor 502 is provided with a lead screw, the fifth motor 502 is mounted on one of the guide support components 501, and the output end of the fifth motor 502 is threadedly connected to another guide support component 501.

[0052] The conveying and guiding assembly includes a guide cover 504, which is disposed on the guide support member 501. A space is provided between the guide cover 504 and the guide support member 501 for guiding the movement of the LED encapsulation board. Specifically, a guide cover 504 is respectively provided on the upper side of the guide support member 501. Along the length direction of the guide support member 501, the space between the guide cover 504 and the guide support member 501 forms a conveying channel for the LED encapsulation board. The guide cover 504 can prevent the LED encapsulation board from falling out of the conveying and guiding assembly during movement. It is understood that guide covers 504 can be provided at multiple locations on the upper side of the guide support member 501.

[0053] Furthermore, the conveying and guiding assembly includes a feeding guide 505, which is disposed at the feeding end of the guiding support member 501. When the feeding assembly 300 pushes the LED packaging board to move, the LED packaging board enters the conveying channel of the conveying and guiding assembly with the guidance of the feeding guide 505. Referring to the accompanying drawings, the feeding ends of the two guiding support members 501 are respectively provided with feeding guides 505. Specifically, the feeding guide 505 includes two guiding rollers. The two guiding rollers roll to allow the LED packaging board to enter the conveying and guiding assembly between them. The two guiding rollers guide the LED packaging board by friction drive. In some examples, the guiding rollers are set as wheels. Of course, as an alternative, the guiding rollers are set as guide rollers, with both ends of the guide rollers respectively disposed at the feeding ends of the two guiding support members 501.

[0054] The testing equipment includes a front pressing assembly 600, which includes a liftable front pressing component 601. The front pressing component 601 is configured as a pressure plate and moves up and down above the guide support component 501. The front pressing component 601 is used to fix the LED packaging board on the guide support component 501. It can be understood that when the feeding assembly 300 pushes the LED packaging board to the testing station, the front pressing component 601 presses down to fix the LED packaging board.

[0055] Specifically, two front pressing edge assemblies 600 are provided, and each of the two guide support members 501 is respectively provided with a front pressing edge assembly 600. Referring to the accompanying drawings, the front pressing edge assembly 600 includes a sixth lifting drive 602, and the front pressing member 601 is provided at the output end of the sixth lifting drive 602. It can be understood that, under the operation of the control device, the sixth lifting drive 602 moves the front pressing member 601.

[0056] Referring to the accompanying drawings, the feeding assembly 300 includes a feeding push rod, a feeding mounting base, and a feeding driver. The feeding driver is mounted on the feeding mounting base, and the feeding push rod is mounted on the output end of the feeding driver. Under the operation of a control device, the feeding driver moves the feeding push rod. In some examples, the feeding driver is configured as a cylinder.

[0057] To ensure accurate placement of the LED packaged board during feeding, the testing equipment includes a front baffle assembly 400. The testing station is located between the feeding assembly 300 and the front baffle assembly 400. Essentially, when the feeding assembly 300 pushes the LED packaged board towards the testing station, the front baffle assembly 400 serves to hold the LED packaged board in place, ensuring accurate positioning. Specifically, the front baffle assembly 400 includes a front baffle component 401, which holds the LED packaged board in place.

[0058] The front guard assembly 400 is disposed within the conveyor guide assembly. Referring to the accompanying drawings, the front guard assembly 400 is positioned between two guide support members 501. It can be understood that the front guard assembly 400 includes a front guard lifting driver 403, which drives the front guard member 401 to move up and down to avoid the LED encapsulation board in the conveying channel of the conveyor guide assembly. Specifically, when the conveying and unloading assembly 700 drives the LED encapsulation board to move along the conveying channel, the control device manipulates the front guard lifting driver 403 to lower the front guard member 401 to avoid the LED encapsulation board.

[0059] Furthermore, the windshield assembly 400 includes a windshield telescopic actuator 402, and a windshield component 401 is disposed at the output end of the windshield telescopic actuator 402. Under the operation of the control device, the windshield telescopic actuator 402 drives the windshield component 401 to reciprocate along the conveying direction in the conveying channel of the conveying guide assembly, so that the windshield component 401 moves closer to or further away from the inspection station, thereby adapting to the inspection of LED packaged boards of different sizes. It can be understood that the windshield telescopic actuator 402 is disposed at the output end of the windshield lifting actuator 403, and the windshield lifting actuator 403 is disposed on the platform mounting plate 800, so that the windshield component 401 can move in both vertical and horizontal directions.

[0060] Of course, as an alternative, the front windshield component 401 can also be designed to be located at the output end of the front windshield lift driver 403, and the front windshield lift driver 403 can be located at the output end of the front windshield telescopic driver 402.

[0061] The conveying and discharging assembly 700 includes a movable discharging component, which is configured as one of a pusher, gripper, and suction cup. The discharging component drives the LED encapsulation board to move along the guide support component 501 to the next process. Specifically, the conveying and discharging assembly 700 includes a guide rail mounting plate 701, a discharging guide rail 702, a seventh motor 703, a seventh slide table 704, and a seventh moving assembly. The guide rail mounting plate 701 is mounted on the platform mounting plate 800. The discharging guide rail 702 and the seventh motor 703 are mounted on the guide rail mounting plate 701. The seventh moving assembly includes a transmission belt, a drive wheel, and a driven wheel. The drive wheel is mounted on the output end of the seventh motor 703, and the driven wheel is mounted on the guide rail mounting plate 701. The seventh slide table 704 is connected to the transmission belt, and the discharging component is connected to the seventh slide table 704. It can be understood that the control device manipulates the seventh motor 703 to provide power to the seventh moving assembly, and the transmission belt of the seventh moving assembly drives the discharging component to reciprocate along the conveying channel via the seventh slide table 704. Of course, as an alternative, the seventh moving component can also be configured as a dual linear guide slide.

[0062] Referring to the attached drawings, the conveying and discharging assembly 700 includes two seventh limiting members 705, which are respectively disposed at both ends of the discharging guide rail 702. The seventh limiting members 705 are used to limit the stroke of the seventh slide 704.

[0063] Furthermore, the discharge component is height-adjustable to avoid the LED packaging board in the conveying channel of the conveying guide assembly. Specifically, when the LED packaging board enters the conveying channel, the discharge component rises to allow the LED packaging board to enter the inspection station. Referring to the accompanying drawings, the conveying discharge assembly 700 includes a seventh lifting driver 706. The discharge component is connected to the output end of the seventh lifting driver 706, which is connected to a seventh slide table 704. A control device operates the seventh lifting driver 706 to raise and lower the discharge component.

[0064] In the description of this specification, the use of terms such as "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] 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 to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A device for detecting defects in LED packaging, the device comprising a detection station, characterized in that: It includes a rear-side acquisition component (100), which includes a rear-side acquisition part (101); A front-facing acquisition component (200) includes a liftable front-facing acquisition part (201); A data processing module is used to process the image data acquired by the rear acquisition component (100) and the front acquisition component (200); A feeding assembly (300) is used to push the LED package board to the inspection station; A conveying and discharging assembly (700) is used to move the LED encapsulation board away from the inspection station; A platform mounting plate (800) is provided, wherein the feeding component (300) and the conveying and discharging component (700) are disposed on the platform mounting plate (800), the back-side acquisition component (100) is disposed on the upper side of the platform mounting plate (800), the front-side acquisition component (200) is disposed on the lower side of the platform mounting plate (800), and the detection station is disposed between the back-side acquisition component (101) and the front-side acquisition component (201). The conveying and guiding assembly includes a feeding assembly (300) that pushes the LED packaging board into the conveying and guiding assembly. The conveying and guiding assembly includes a guide support component (501). The feeding assembly (300) pushes the LED packaging board to move along the guide support component (501). The conveying and discharging assembly (700) drives the LED packaging board to move along the guide support component (501). There are two guide support components (501), which are arranged opposite each other and the spacing is adjustable to suspend and support the LED packaging board. A front pressing assembly (600) includes a liftable front pressing component (601) that moves up and down above a guide support component (501). The front pressing component (601) is used to fix the LED encapsulation board on the guide support component (501). When the feeding assembly (300) pushes the LED encapsulation board to the inspection station, the front pressing component (601) presses down to fix the LED encapsulation board.

2. The LED packaging defect detection device according to claim 1, characterized in that: The conveying and guiding assembly includes a feeding guide (505), which is disposed at the feeding end of the guiding support component (501). The feeding guide (505) includes two guiding rollers, which roll to allow the LED encapsulation board to enter the conveying and guiding assembly from between the two guiding rollers.

3. The LED packaging defect detection device according to claim 1, characterized in that: The conveying and guiding assembly includes a guide cover plate (504), which is disposed on the guide support component (501). A space is left between the guide cover plate (504) and the guide support component (501) for guiding the movement of the LED encapsulation board.

4. The LED packaging defect detection device according to claim 1, characterized in that: The testing equipment includes a front windshield assembly (400), and the testing station is located between the feeding assembly (300) and the front windshield assembly (400). The front windshield assembly (400) includes a front windshield component (401) for abutting against the LED encapsulation board.

5. The LED packaging defect detection device according to claim 4, characterized in that: The windshield assembly (400) includes a windshield telescopic driver (402) and a windshield lift driver (403), the windshield component (401) is disposed at the output end of the windshield telescopic driver (402), and the windshield telescopic driver (402) is disposed at the output end of the windshield lift driver (403).

6. The LED packaging defect detection device according to claim 1, characterized in that: The rear acquisition component (100) includes a rear auxiliary light source (102), which moves synchronously with the rear acquisition component (101).

7. The LED packaging defect detection device according to claim 1 or 6, characterized in that: The front acquisition component (200) includes a front auxiliary light source (202) and a front ring light source (203), and the front auxiliary light source (202) and the front ring light source (203) move synchronously with the front acquisition component (201).

8. The LED packaging defect detection device according to claim 1, characterized in that: The feeding assembly (300) includes a feeding pusher, a feeding mounting base, and a feeding driver. The feeding driver is mounted on the feeding mounting base, and the feeding pusher is mounted on the output end of the feeding driver.

Images