Screen appearance AOI (Automatic Optic Inspection) equipment

Abstract

The utility model provides an AOI (automatic optical inspection) device for screen appearance. Comprising a first transmission line used for conveying trays and detecting the trays, a second transmission line arranged in parallel with the first transmission line and used for collecting unqualified products, and a transfer mechanism arranged between the first transmission line and the second transmission line and used for transferring the unqualified products from the first transmission line to the second transmission line. The first conveying line comprises a first feeding mechanism used for conveying the material discs, a detection mechanism used for detecting products on the material discs, and a first discharging mechanism used for collecting the detected material discs. By means of the automatic feeding, detecting, conveying and discharging system, the problems that in the prior art, the detecting efficiency is low, and NG products are inconvenient to process can be effectively solved, the requirement for large-scale production is met, and wide application prospects and remarkable economic benefits are achieved.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and in particular to a material detection device. Background Technology

[0002] With the rapid development of smartphone technology, curved screens and full-screen phones have gradually become the mainstream in the market. This trend has placed higher demands on the manufacturing process of phone screen protectors. As one of the core components of a mobile phone, the quality of the screen protector directly affects the overall performance and user experience of the phone. With the continuous improvement of mobile phone production capacity, the demand for phone screen protectors is also increasing, and at the same time, mobile phone manufacturers are placing increasingly higher demands on product quality.

[0003] Traditional mobile phone screen defect detection mainly relies on manual visual inspection. This method is not only inefficient but also susceptible to human error, leading to inconsistent results and failing to meet the demands of large-scale production. To improve inspection efficiency and accuracy, screen manufacturers are gradually introducing Automated Optical Inspection (AOI) equipment. AOI equipment, through high-precision cameras and image processing technology, can quickly and accurately detect product appearance defects, significantly improving production efficiency and product quality.

[0004] However, existing AOI equipment generally adopts a method of feeding, inspecting, and unloading each product individually, resulting in low inspection efficiency and difficulty in meeting the needs of large-scale production. In addition, existing AOI equipment also has shortcomings in handling non-conforming (NG) products, which usually require manual intervention for sorting and storage, further reducing production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an AOI (Automated Inspection and Testing) device for screen covering, which can effectively solve the problems of low inspection efficiency and inconvenient handling of defective products in the prior art through an automated feeding, inspection, conveying and unloading system, and meet the needs of large-scale production.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] This utility model provides an AOI (Automated Optical Inspection) device for screen covering, including a first transmission line for conveying a tray and performing inspection, a second transmission line arranged parallel to the first transmission line for collecting products that fail inspection, and a transfer mechanism installed between the first and second transmission lines for transferring products that fail inspection from the first transmission line to the second transmission line. Along the first transmission line are a first loading mechanism for conveying the tray, an inspection mechanism for inspecting the products on the tray, and a first unloading mechanism for collecting the tray after inspection.

[0008] Specifically, in this embodiment, the first feeding mechanism includes a feeding bin for carrying the material tray, a material transfer component for transporting the material tray in the feeding bin to the detection position, a first clamping component installed on both sides of the bottom of the feeding bin for clamping the material tray, and a drive module for moving the material tray to the detection position.

[0009] Specifically, in this embodiment, the detection mechanism includes a detection camera for performing appearance inspection on the products on the tray, and a control unit that is communicatively connected to the detection camera.

[0010] Specifically, in this embodiment, the detection mechanism further includes a first lifting mechanism for moving the detection camera in the vertical direction, a first longitudinal movement mechanism for moving the detection camera in the horizontal front-back direction, and a first transverse movement mechanism for moving the detection camera in the horizontal left-right direction.

[0011] Specifically, in this embodiment, the first unloading mechanism includes an unloading conveyor belt for conveying the tray after testing, a stacking bin for collecting the tray, an unloading lifting assembly installed at the end of the unloading conveyor belt for lifting the tray, and a second clamping assembly installed on both sides of the bottom of the stacking bin for clamping the lifted tray.

[0012] Specifically, in this embodiment, the second transmission line includes an empty tray, a second feeding mechanism for conveying the empty tray to the defective product transfer location, and a second unloading mechanism for collecting trays filled with defective products.

[0013] Specifically, in this embodiment, the screen-mounted appearance AOI device further includes a fine-tuning mechanism for adjusting the accommodating width of the loading and unloading stations according to the size of different material trays. The first loading mechanism, the second loading mechanism, the first unloading mechanism, and the second unloading mechanism are all equipped with fine-tuning mechanisms.

[0014] Specifically, in this embodiment, the fine-tuning mechanism includes a sliding groove formed on the bottom side of the first feeding mechanism, the second feeding mechanism, the first unloading mechanism, and the second unloading mechanism, as well as a positioning screw hole formed in the sliding groove.

[0015] Specifically, in this embodiment, the transfer mechanism is communicatively connected to the control unit and is used to transfer products with unqualified appearances in response to control commands issued by the control unit after the inspection is completed.

[0016] Specifically, in this embodiment, the transfer mechanism includes a suction cup for picking up defective products, a second lateral movement mechanism mounted above the suction cup for moving the suction cup in the horizontal left-right direction, a second lifting mechanism for moving the suction cup in the vertical direction, and a second longitudinal movement mechanism for moving the suction cup between the first transmission line and the second transmission line.

[0017] This utility model provides an AOI (Automated Inspection) device for screen covering, comprising a first transmission line for conveying trays and performing inspection, a second transmission line arranged parallel to the first transmission line for collecting defective products, and a transfer mechanism installed between the first and second transmission lines for transferring defective products from the first transmission line to the second transmission line. The first transmission line includes a first loading mechanism for conveying trays, an inspection mechanism for inspecting the products on the trays, and a first unloading mechanism for collecting the trays after inspection. Through automated loading, inspection, conveying and unloading of qualified products, and transfer, conveying and unloading of defective products, this device effectively solves the problems of low inspection efficiency and inconvenient handling of defective products in existing technologies, meeting the needs of large-scale production and possessing broad application prospects and significant economic benefits. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of an AOI device for screen mounting provided in an embodiment of the present invention.

[0020] Figure 2 for Figure 1 The diagram shows the structure of the AOI device with a screen-mounted appearance from another perspective.

[0021] Figure 3 for Figure 1 The diagram shows the structure of the first loading mechanism and the first unloading mechanism of the AOI device for screen mounting.

[0022] Figure 4 for Figure 1 The diagram shows the structural schematic of the inspection mechanism of the AOI equipment for screen mounting.

[0023] Figure 5 for Figure 4 An enlarged view of the testing institution shown.

[0024] Figure 6 for Figure 1 The diagram shows the structure of the second loading mechanism and the second unloading mechanism of the AOI device for screen mounting.

[0025] Figure 7 for Figure 4 The diagram shows a structural schematic from another perspective.

[0026] Figure 8 for Figure 7 An enlarged view of the transfer mechanism shown.

[0027] Figure 9 for Figure 1 The system flowchart of the AOI device with screen-mounted appearance is shown.

[0028] In the diagram: 1. First feeding mechanism; 11. Feeding bin; 12. Transfer assembly; 13. First clamping assembly; 14. Drive module; 2. Detection mechanism; 21. Detection camera; 22. First lifting mechanism; 23. First lateral movement mechanism; 24. First longitudinal movement mechanism; 3. First unloading mechanism; 31. Unloading conveyor belt; 32. Stacking bin; 33. Unloading lifting assembly; 34. Second clamping assembly; 4. Second feeding mechanism; 41. Empty material. 42. Empty tray transfer assembly; 43. Empty tray clamping component; 44. Empty tray drive module; 5. Second unloading mechanism; 51. NG product conveyor belt; 52. NG product (non-conforming product) stacking bin; 53. NG product lifting assembly; 54. NG product clamping component; 6. Fine-tuning mechanism; 7. Transfer mechanism; 71. Suction cup; 72. Second longitudinal movement mechanism; 73. Second lifting mechanism; 74. Second transverse movement mechanism; 8. Fixed bracket. Detailed Implementation

[0029] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," etc., 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. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0031] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when this utility model is in use. They are only for the convenience of description and simplification, 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. Therefore, they should not be construed as limitations on this utility model.

[0032] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0033] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0034] Please refer to the following first. Figure 1 and Figure 2 A preferred embodiment of the present invention provides an AOI device for screen covering, including a first transmission line for conveying a tray and performing inspection, a second transmission line arranged in parallel with the first transmission line for collecting products that fail inspection, and a transfer mechanism 7 installed between the first transmission line and the second transmission line for transferring products that fail inspection from the first transmission line to the second transmission line.

[0035] Please refer to the following: Figure 3The first transmission line includes a first feeding mechanism 1, a detection mechanism 2, a first unloading mechanism 3, and multiple trays. The trays are used to hold products to be detected. The first feeding mechanism 1 includes a feeding bin 11 for carrying multiple trays, a transfer component 12 for transferring multiple trays from the feeding bin 11 to the detection position, a first clamping component 13 mounted on both sides of the bottom of the feeding bin 11 for clamping multiple trays stacked together, and a drive module 14 for moving the transfer component 12 and the trays on it together to the detection position. The drive module 14 can be an existing translation drive module, such as a linear motor drive module. The first clamping component includes at least one pair of clamping blocks. The loading bin 11 is located at the starting point of the first transmission line and is used to temporarily store multiple trays of products to be inspected. The loading bin 11 includes side plates erected on both sides of the drive module 14 and first limiting posts installed on the side plates to prevent the trays from moving during storage. The first clamping assembly 13 is installed on both sides of the bottom of the loading bin 11 (initially, the first clamping assembly 13 clamps the last tray stacked together). The transfer assembly 12 moves to the bottom of the loading bin 11 under the drive of the drive module 14. After the first clamping assembly 13 releases and the multiple trays fall by one tray height, it clamps and fixes the second tray from the bottom (i.e., the second to last tray), while the first tray from the bottom (i.e., the last tray) remains on the transfer assembly 12 and is transported to the inspection position by the drive of the drive module 14.

[0036] The first unloading mechanism 3 includes an unloading conveyor belt 31, an unloading lifting component 33, a stacking bin 32, and a second clamping component 34. The second clamping component 34 is located on both sides of the bottom of the stacking bin 32 and is used to clamp multiple stacked trays. The second clamping component includes at least one pair of clamping blocks. The stacking bin 32 is located at the end of the first conveyor line and is used to collect trays containing workpieces that have been inspected. When the transfer component 12 transports the tray from the inspection position to the unloading conveyor belt 31, it is equipped with a lifting unit (not shown in the figure) at its bottom. The lifting unit may include, for example, an existing lifting drive module, which smoothly transitions the tray onto the unloading conveyor belt 31 through a lifting action to avoid jamming or positional displacement caused by height difference. After the transport is completed, the transfer component returns to the initial height.

[0037] The stacking bin 32 includes side plates erected on both sides of the unloading conveyor belt 31, and second limiting posts installed on the side plates to prevent the trays from moving during storage. The starting point of the unloading conveyor belt 31 is aligned with the ending point of the drive module 14 to receive trays of inspected workpieces. The unloading lifting assembly 33 is installed at the bottom of the stacking bin 32. The trays move with the unloading conveyor belt 31 to the bottom of the stacking bin 32. The unloading lifting assembly 33 lifts the trays until they are pressed against the multiple trays above. The second clamping assembly 34 releases its grip on the original trays. The unloading lifting assembly 33 continues to lift, raising all the trays above by one tray height. Then, the second clamping assembly 34 clamps the bottom tray. Subsequently, the unloading lifting assembly 33 resets and waits for the next tray to arrive before continuing to lift. The second clamping assembly 34 continues to clamp the lifted trays, completing the automatic stacking of the trays.

[0038] Based on the direction of the conveyor line's travel, the left-right direction is consistent with the conveying direction of the first and second conveyor lines (along the extension direction of the conveyor lines), the front-back direction is perpendicular to the horizontal longitudinal direction of the conveying direction (i.e., the direction spanning the first and second conveyor lines); the vertical direction is perpendicular to the up-down direction of the horizontal plane (perpendicular to the horizontal direction). Please refer to the following: Figure 4 and Figure 5 The AOI equipment for screen mounting also includes a fixed bracket 8 for mounting the detection mechanism 2 and the transfer mechanism 7. The fixed bracket 8 spans between the first conveyor line and the second conveyor line. The detection mechanism 2 is mounted above the first and second conveyor lines via the fixed bracket 8. The detection mechanism 2 includes a detection camera 21, a control unit, a first lifting mechanism 22 for moving the detection camera 21 vertically, a first longitudinal movement mechanism 24 for moving the detection camera 21 forward and backward, and a first transverse movement mechanism 23 for moving the detection camera 21 left and right. The first transverse movement mechanism 23 is mounted on the fixed bracket 8; the first longitudinal movement mechanism 24 is mounted on the first transverse movement mechanism 23; and the first lifting mechanism 22 is mounted on the first longitudinal movement mechanism 24. In this embodiment, two sets of detection cameras 21 are provided, both mounted on the first lifting mechanism 22. The first transverse mechanism 23 and the first longitudinal mechanism 24 may include, for example, existing translation guide mechanisms, such as slide rail mechanisms; the first transverse mechanism 23 and the first longitudinal mechanism 24 are preferably arranged as two mutually perpendicular slide rails; the first lifting mechanism 22 may include, for example, existing lifting devices, such as cylinder assemblies, for driving the detection camera 21 to move in the vertical direction.

[0039] Please refer to the following: Figure 6The second transmission line includes an empty tray, a second loading mechanism 4 for conveying the empty tray to the non-conforming product transfer position, and a second unloading mechanism 5 for collecting trays filled with non-conforming products. The second loading mechanism 4 includes an empty tray loading bin 41 for placing multiple empty trays, an empty tray transfer assembly 42 for moving multiple trays in the empty tray loading bin 41 to the transfer position, empty tray clamping members 43 installed on both sides of the bottom of the empty tray loading bin 41 for clamping multiple trays stacked together, and an empty tray drive module 44 for driving the empty tray transfer assembly 42 and the trays on it to move together to the transfer position. The empty tray drive module 44 can be an existing translation drive module, such as a linear motor drive module. The empty tray clamping member 43 includes at least one pair of clamping blocks. The empty tray loading bin 41 is located at the starting point of the second transmission line and is used to temporarily load multiple empty trays. The empty tray loading bin 41 includes side plates erected on both sides of the empty tray drive module 44 and empty tray limiting posts installed on the side plates to prevent the trays from moving during storage. The empty tray clamping member 43 is installed on both sides of the bottom of the empty tray loading bin 41 (initially, the empty tray clamping member 43 clamps the last empty tray stacked together). The empty tray transfer component 42 moves to the bottom of the empty tray loading bin 41 under the drive of the empty tray drive module 44. After the empty tray clamping component 13 releases and the multiple empty trays fall by one tray height, the second empty tray from the bottom (i.e., the second to last empty tray) is clamped and fixed, while the first empty tray from the bottom (i.e., the last tray) remains on the empty tray transfer component 42 and is transported to the transfer position by the drive of the empty tray drive module 44.

[0040] The second unloading mechanism 5 includes an NG (non-conforming) product conveyor belt 51, an NG product lifting assembly 53, an NG product stacking bin 52, and an NG product clamping member 54. The NG product clamping member 54 is located on both sides of the bottom of the NG product stacking bin 52 and is used to clamp multiple stacked trays. The NG product clamping member 54 includes at least one pair of clamping blocks. The NG product stacking bin 52 is located at the end of the second conveyor line and is used to collect trays containing NG product workpieces. When the empty tray transfer assembly 42 transports the empty tray from the non-conforming product transfer position to the NG product conveyor belt 51, it is equipped with a lifting unit (not shown in the figure) at its bottom. The lifting unit may include, for example, an existing lifting drive module, which smoothly transitions the tray onto the NG product conveyor belt 51 through a lifting action to avoid jamming or positional displacement caused by height difference. After the transport is completed, the empty tray transfer assembly 42 returns to the initial height.

[0041] The NG (non-conforming) product stacking bin 52 includes side plates erected on both sides of the NG product conveyor belt 51, and NG product limiting posts installed on the side plates to prevent the NG product trays from moving during storage. The starting point of the NG product conveyor belt 51 is aligned with the ending point of the NG product drive module to receive the NG product trays of non-conforming workpieces after inspection. The NG product lifting assembly 53 is installed at the bottom of the NG product stacking bin 52, and the trays move with the NG product conveyor belt 51 to the bottom of the NG product stacking bin 52. In the first step, the NG product lifting component 53 lifts the NG product tray until it is pressed against the multiple trays above. The NG product clamping component 54 releases its grip on the original tray. The NG product lifting component 53 continues to lift, raising all the trays above to the height of one tray. Then, the NG product clamping component clamps the bottom tray. Subsequently, the NG product lifting component 53 resets and waits for the next NG product tray to arrive before continuing to lift. The NG product clamping component 54 continues to clamp the lifted NG product tray, completing the automatic stacking of NG product trays.

[0042] In this embodiment, the feeding bin 11, stacking bin 32, empty tray feeding bin 41, and NG (non-conforming) product stacking bin 52 are each equipped with a fine-tuning mechanism 6. The fine-tuning mechanism 6 is used to adjust the accommodating width of the feeding and unloading stations according to the size of different trays. The feeding bin 11, stacking bin 32, empty tray feeding bin 41, and NG (non-conforming) product stacking bin 52 have the same structure and are all composed of side plates that can be formed into a cuboid shape. By adjusting the distance between the two side plates, the length and width of the cuboid can be changed to accommodate trays of different sizes. In this embodiment, the fine-tuning mechanism 6 includes a sliding groove (not shown in the figure) connected to the side plate and a positioning screw hole opened in the sliding groove. In this embodiment, the chute includes an X-axis chute for adjusting the accommodating size in the length direction and a Y-axis chute for adjusting the accommodating size in the width direction. After determining the length and width of the feeding bin 11, the stacking bin 32, the empty material bin feeding bin 41, and the NG (non-conforming) stacking bin 52 according to the size of the material tray, bolts are inserted into the positioning screw holes to fix the position of the side plate.

[0043] Please refer to the following: Figure 7 and Figure 8 The transfer mechanism 7 is connected to the control unit and is used to transfer products that fail the appearance inspection in response to the control command issued by the control unit after the inspection is completed.

[0044] Specifically, in this embodiment, the transfer mechanism 7 includes a suction cup 71 for picking up defective products, a second transverse mechanism 74 mounted above the suction cup 71 for moving the suction cup 71 in the conveying direction of the first and second transmission lines, a second lifting mechanism 73 for moving the suction cup 71 in a direction perpendicular to the horizontal plane, and a second longitudinal mechanism 72 for moving the suction cup 71 between the first and second transmission lines. The second longitudinal movement mechanism 72 is mounted on the fixed bracket 8 and is used to drive the suction cup 71 to move between the first transmission line and the second transmission line. The second lifting mechanism 73 is mounted on the second longitudinal movement mechanism 72, the second transverse movement mechanism 74 is mounted on the second lifting mechanism 73, and the suction cup 71 is mounted on the bottom of the second transverse movement mechanism 74. The second longitudinal movement mechanism 72, the second lifting mechanism 73, and the second transverse movement mechanism 74 may include, for example, existing drive devices, such as linear module drives. The second longitudinal movement mechanism 72 is used to drive the second lifting mechanism 73 and the suction cup 71 to move along the linear module in the horizontal front-back direction. The second lifting mechanism 73 is used to drive the second transverse movement mechanism 74 and the suction cup 71 to move in the vertical direction. The second transverse movement mechanism 74 is used to drive the suction cup 71 to move in the horizontal left-right direction.

[0045] Please refer to the following: Figure 9 The working principle of the screen-mounted appearance AOI device will be explained in detail below.

[0046] When using the aforementioned AOI device for screen mounting, on the first transmission line, the tray containing the workpiece to be inspected is first placed into the loading bin 11; on the second transmission line, the empty tray is placed into the empty tray loading bin 41.

[0047] When the equipment is started, on the first transmission line, the material transfer component 12 moves to the bottom of the loading bin 11 under the drive of the drive module, and transfers the last material tray in the loading bin 11 to the detection position; on the second transmission line, the empty material tray transfer component 42 moves to the bottom of the empty material tray loading bin 41 under the drive of the empty material tray drive module, and transfers the last empty material tray in the empty material tray loading bin 41 to the non-conforming product transfer position and stays there.

[0048] On the first transmission line, the inspection camera 21 performs three-axis motion driven by the first longitudinal movement mechanism 24, the first transverse movement mechanism 23 and the first lifting mechanism 22, close to the product surface and scans and inspects all products; on the second transmission line, the empty tray waits at the transfer position for the transfer mechanism 7 to transport unqualified products.

[0049] Based on the information fed back to the control unit by the detection camera 21, the transfer mechanism 7 picks up the defective products on the first transmission line. The second longitudinal movement mechanism 72 moves to above the defective products, the second lifting mechanism 73 descends, and the second transverse movement mechanism 74 finely adjusts the suction cup 71 so that the suction cup 71 contacts the defective products and picks them up. The second longitudinal movement mechanism 72 moves to above the empty tray on the second transmission line and puts the defective products into the empty tray.

[0050] After the inspection is completed, on the first conveyor line, the qualified products are kept in the tray and the tray is transported to the stacking bin 32 by the unloading conveyor belt 31; on the second conveyor line, the tray full of unqualified products is transported to the NG (unqualified) product stacking bin 52 by the NG product conveyor belt 51.

[0051] On the first conveyor line, the unloading lifting component 33 descends to the receiving position, and the unloading conveyor line feeds the trays into the stacking bin 32. The unloading lifting component 33 lifts the trays until they are pressed against the multiple trays above. The second clamping component 34 releases its grip on the original trays, and the unloading lifting component 33 continues to lift, raising all the trays above by one tray height. Then, the second clamping component 34 clamps the bottommost tray, and the unloading lifting component 33 returns to its original position, waiting for the next tray to arrive before continuing to lift. This process is repeated to complete the automatic stacking of the trays. On the second conveyor line, the NG product lifting component... When component 53 descends to the receiving position, the NG product conveyor line sends the tray filled with defective products into the NG product (defective product) stacking bin 52. The NG product lifting component 53 lifts the tray until it is pressed against multiple trays above. The NG product clamping component 54 releases its grip on the original tray. The NG product lifting component 53 continues to lift, raising all the trays above by one tray height. Then, the NG product clamping component 54 clamps the bottom first tray. The NG product lifting component 53 returns to its original position and waits for the next tray to arrive before continuing to lift. The above steps are repeated to complete the automatic stacking of trays filled with defective products.

[0052] This utility model provides an AOI (Automated Inspection) device for screen covering, comprising a first transmission line for conveying trays and performing inspection, a second transmission line arranged parallel to the first transmission line for collecting defective products, and a transfer mechanism 7 installed between the first and second transmission lines for transferring defective products from the first transmission line to the second transmission line. The first transmission line includes a first loading mechanism 1 for conveying trays, an inspection mechanism 2 for inspecting the products on the trays, and a first unloading mechanism 3 for collecting the trays after inspection. Through automated loading, inspection, conveying and unloading of qualified products, and transfer, conveying and unloading of defective products, this device effectively solves the problems of low inspection efficiency and inconvenient handling of defective products in existing technologies, meeting the needs of large-scale production and possessing broad application prospects and significant economic benefits.

[0053] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An AOI (Automated Optical Inspection) device for screen mounting, characterized in that, include: A first transmission line for conveying and inspecting a tray, a second transmission line arranged parallel to the first transmission line for collecting defective products, and a transfer mechanism (7) installed between the first and second transmission lines for transferring defective products from the first transmission line to the second transmission line. Along the first transmission line, there is a first feeding mechanism (1) for conveying the tray, an inspection mechanism (2) for inspecting the products on the tray, and a first unloading mechanism (3) for collecting the tray after inspection.

2. The AOI device for screen mounting according to claim 1, characterized in that, The first feeding mechanism (1) includes a feeding bin (11) for carrying the material tray, a material transfer component (12) for transporting the material tray in the feeding bin (11) to the detection position, a first clamping component (13) installed on both sides of the bottom of the feeding bin (11) for clamping the material tray, and a drive module (14) for driving the material tray to the detection position.

3. The AOI device for screen mounting according to claim 2, characterized in that, The inspection mechanism (2) includes an inspection camera (21) for inspecting the appearance of the products on the tray, and a control unit that is communicatively connected to the inspection camera (21).

4. The AOI device for screen mounting according to claim 3, characterized in that, The detection mechanism (2) further includes a first lifting mechanism (22) for driving the detection camera (21) to move in the vertical direction, a first longitudinal movement mechanism (24) for driving the detection camera (21) to move in the horizontal front-back direction, and a first transverse movement mechanism (23) for driving the detection camera (21) to move in the horizontal left-right direction.

5. The AOI device for screen mounting according to claim 4, characterized in that, The first unloading mechanism (3) includes an unloading conveyor belt (31) for conveying the tray after the test is completed, a stacking bin (32) for collecting the tray, an unloading lifting assembly (33) installed at the end of the unloading conveyor belt (31) for lifting the tray, and a second clamping assembly (34) installed on both sides of the bottom of the stacking bin (32) for clamping the lifted tray.

6. The AOI device for screen mounting according to claim 1, characterized in that, The second transmission line includes an empty tray, a second feeding mechanism (4) for conveying the empty tray to the non-conforming product transfer location, and a second unloading mechanism (5) for collecting trays filled with non-conforming products.

7. The AOI device for screen mounting according to claim 6, characterized in that, The AOI equipment for screen mounting also includes a fine-tuning mechanism (6) for adjusting the accommodating width of the loading and unloading stations according to the size of different material trays. The first loading mechanism (1), the second loading mechanism (4), the first unloading mechanism (3), and the second unloading mechanism (5) are all equipped with fine-tuning mechanisms.

8. The AOI device for screen mounting according to claim 7, characterized in that, The fine-tuning mechanism (6) includes a sliding groove on the bottom side of the first feeding mechanism (1), the second feeding mechanism (4), the first unloading mechanism (3) and the second unloading mechanism (5), and a positioning screw hole in the sliding groove.

9. The AOI device for screen mounting according to claim 3, characterized in that, The transfer mechanism (7) is communicatively connected to the control unit and is used to transfer products with unqualified appearances in response to control commands issued by the control unit after the detection is completed.

10. The AOI device for screen mounting according to claim 9, characterized in that, The transfer mechanism (7) includes a suction cup (71) for picking up defective products, a second transverse mechanism (74) mounted above the suction cup (71) for moving the suction cup (71) in the horizontal left and right direction, a second lifting mechanism (73) for moving the suction cup (71) in the vertical direction, and a second longitudinal mechanism (72) for moving the suction cup (71) between the first transmission line and the second transmission line.

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