Shielding case flexible carrier tape packaging machine based on 3D visual inspection

Abstract

The utility model discloses a shielding case flexible carrier tape packaging machine based on 3D visual inspection, which comprises a workbench and a cabinet body above the workbench, a conveying belt, a feeding station, a detection station and a packaging station are arranged in the cabinet body, and a feeding hopper of the feeding station, a carrier tape disc of the packaging station and a finished product disc extend out of the cabinet body; the conveying belt is arranged between the feeding station and the packaging station. The detection station comprises a front detection station and a rear detection station, and a second carrying unit and a defective product removing mechanism are arranged on the side face of the conveying belt; the packaging unit is used for packaging the product in a carrier tape and rolling the product; the conveying belt, the first carrying unit, the second carrying unit, the third carrying unit, the defective product removing mechanism and the packaging unit are all connected with the controller. Products are sucked through the first carrying unit and detected through the front detection station and the rear detection station, unqualified products are removed through the defective product removing mechanism, and then the products are moved to the packaging station through the third carrying unit to be packaged. And automatic packaging of products is achieved through the controller.

Description

Technical Field

[0001] This utility model belongs to the technical field of electronic product packaging equipment, and in particular relates to a shielding cover flexible carrier packaging machine based on 3D vision inspection. Background Technology

[0002] Shielding covers are products used to shield electronic signals, primarily in devices such as mobile phones and GPS devices. Due to their small size, they cannot be packaged individually and must be placed inside the cavities of a carrier tape for batch packaging during production. Currently, although packaging equipment for shielding covers has achieved automated packaging and the quality of the product is controlled in the early stages, quality monitoring during the packaging process is not timely, and missed detections are prone to occur. Therefore, engineers have developed a flexible carrier tape packaging machine for shielding covers based on 3D vision inspection with automatic detection capabilities. Utility Model Content

[0003] To address the above problems, this invention provides a flexible carrier packaging machine for shielding covers based on 3D vision inspection.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A flexible carrier tape packaging machine with a shielding cover based on 3D vision inspection includes a workbench and a cabinet above it. The cabinet houses a conveyor belt, a feeding station, an inspection station, and a packaging station, all located on the workbench. The feeding hopper of the feeding station and the carrier tape reel and finished product reel of the packaging station extend to the outside of the cabinet. The conveyor belt is positioned between the feeding station and the packaging station. The feeding station has a feeding hopper and a first conveying unit above it for transferring products from the feeding station onto the conveyor belt. The inspection station includes a front inspection station and a rear inspection station. The front inspection unit of the front inspection station is used to inspect the conveyor belt. The product appearance on the conveyor belt is inspected by the post-inspection unit at the post-inspection station before it is placed on the carrier belt. A second handling unit and a defective product rejection mechanism are provided on the side of the conveyor belt. A third handling unit is provided between the post-inspection station and the packaging station. The packaging unit at the packaging station is used to package qualified products in the carrier belt and wind them onto the finished product reel. A controller is provided inside the lower part of the workbench. The conveyor belt, the first handling unit, the second handling unit, the third handling unit, the defective product rejection mechanism, and the packaging unit are all connected to the controller. A control panel connected to the controller is provided on the cabinet.

[0006] Preferably, the feeding hopper is shaped like a sieve, and its opening is located above the vibratory feeder. The bottom of the vibratory feeder is equipped with a vibratory motor connected to a controller. Both the feeding hopper and the vibratory feeder are inclined downwards at 10±5° toward the first conveying unit. The first conveying unit includes an XY bidirectional moving assembly and a lifting arm with multiple suction cups. The XY bidirectional moving assembly is used to drive the lifting arm to move bidirectionally in the left-right and horizontal directions. The suction cups connected to the air source are connected to the mounting frame of the lifting arm through a lifting and rotating mechanism. Multiple suction cups are arranged in a row at the lower end of the lifting and rotating mechanism. An appearance inspection camera is provided above the vibratory feeder to detect the front and back of the product on the vibratory feeder and the picking direction.

[0007] Preferably, there are two conveyor belts, namely a first conveyor belt and a second conveyor belt arranged side by side along the same straight line. The first conveyor belt is located on the side of the vibrating plate, and the front inspection station is located at the discharge end of the first conveyor belt. The second handling unit is located on the side between the first and second conveyor belts and is used to transfer products from the first conveyor belt to the second conveyor belt. The defective product rejection mechanism is located on the side of the loading end of the second conveyor belt, and the rear inspection station is located at the discharge end of the second conveyor belt.

[0008] Preferably, the defective product removal mechanism includes an air gun and a collection box. The air gun, which is connected to compressed air, is controlled by a controller. The air outlet of the air gun faces the products on the second conveyor belt. The air gun and the collection box are respectively located on both sides of the second conveyor belt.

[0009] Preferably, the front inspection unit includes a first inspection camera, a second inspection camera, and a third inspection camera. The first and second inspection cameras are arranged side by side above the discharge end of the first conveyor belt for inspecting the appearance quality of the product. The third inspection camera is mounted on a frame above a positioning platform between the first and second conveyor belts. The positioning platform has positioning blocks around its perimeter for positioning the product. The platform surface is made of transparent material, and the bottom housing has a built-in light source for detecting whether the product is cracked.

[0010] Preferably, the post-inspection unit includes a fourth inspection camera and a fifth inspection camera. The fourth inspection camera is disposed below the transparent surface of the platform and is connected to a linear module. The linear module is used to drive the fourth inspection camera to inspect the flatness of the product on the platform. The fifth inspection camera is disposed between the fourth inspection camera and the packaging station and is used to inspect the bottom surface appearance quality of the product. A fourth transport unit is provided on the side of the platform for transferring products from the second conveyor belt to the platform, and a third transport unit is used to transfer products from the platform to the packaging station.

[0011] Preferably, the third transport unit and the fourth transport unit have the same structure, both including an XY bidirectional moving component and a lifting frame with two suction nozzles. The suction nozzles connected to the air source are connected to the lifting mechanism inside the lifting frame, and the lifting frame is driven by the XY bidirectional moving component.

[0012] The second conveying unit includes a left-right translation component and a lifting component. The lifting component is connected to the left-right translation component. The bottom movable end of the lifting component is provided with two parallel suction cups. A sixth detection camera connected to the second conveying unit is provided above the discharge end of the second conveyor belt.

[0013] Preferably, the packaging unit includes a carrier track, a carrier reel, a cover reel, and a finished product reel. The carrier track is disposed on the workbench, the carrier reel is disposed on the front side of the cabinet and at the front end of the carrier track, the finished product reel is disposed on the rear side of the cabinet, and the cover reel and finished product reel are disposed on the upper and lower sides of the carrier track respectively. The finished product reel is driven by a first motor. The discharge end of the carrier track is provided with a sealing component for pressing and sealing the cover tape onto the carrier tape surface. The carrier tape on the carrier reel can be conveyed along the carrier track and sealed with the cover tape before being wound onto the finished product reel. The product on the shelf is moved above the carrier track by a third conveying unit and placed in the cavity of the carrier tape.

[0014] Preferably, the sealing assembly includes a heat-sealing rod and an internal heating wire. The heat-sealing rod is driven by a second motor, which brakes the heat-sealing rod and presses the cover tape onto the upper surface of the carrier tape.

[0015] Preferably, the feed side of the carrier track is provided with a guide rod to ensure that the carrier belt on the carrier reel is not higher than the carrier track; the loading end side of the carrier track is provided with a defective product recycling box.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention features a cabinet installed above the workbench, enclosing the conveyor belt, loading station, inspection station, and packaging station. Only the loading hopper at the loading station and the carrier tape and finished product tray at the packaging station extend outside the cabinet, facilitating loading and unloading. A first handling unit moves the product onto the conveyor belt, where it undergoes process inspection at the pre-inspection and post-inspection stations. A defective product rejection mechanism removes substandard products, improving the pass rate of the carrier tape-packaged products. A third handling unit then moves the product to the packaging station for final packaging. A controller manages the movements of the conveyor belt, the first handling unit, the second handling unit, the third handling unit, the defective product rejection mechanism, and the packaging unit, achieving automated packaging and improving work efficiency. Simultaneously, the cabinet protects the product from contamination during transport, further enhancing packaging quality. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] In the attached diagram:

[0020] Figure 1 An external view of a flexible carrier tape packaging machine for shielding covers based on 3D vision inspection provided for an embodiment of this utility model;

[0021] Figure 2 This is a top view of the flexible carrier packaging machine with shielding cover based on 3D vision detection in this embodiment of the present invention after removing the cabinet above the workbench;

[0022] Figure 3 This is a perspective view of the flexible carrier packaging machine with shielding cover based on 3D vision detection in this embodiment of the present invention after removing the cabinet above the workbench;

[0023] Figure 4 for Figure 3 The rear F-direction view in the middle;

[0024] Figure 5 for Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 6 for Figure 3 A magnified view of a section at point B in the middle;

[0026] Figure 7 for Figure 3 A magnified view of a section at point C;

[0027] Figure 8 for Figure 3 A magnified view of a section at point D;

[0028] Figure 9 for Figure 3 A magnified view of a section at point E in the middle;

[0029] In the picture:

[0030] 00-Product; 1-Workbench; 2-Cabinet; 3-Feeding Hopper; 4-Carrier Reel; 5-Finished Product Reel; 6-Control Panel; 7-Vibrating Feeder; 8-XY Bidirectional Moving Component; 9-Lifting Arm; 10-First Conveyor Belt; 11-Second Conveyor Belt; 12-Air Gun; 13-Collection Box; 14-First Inspection Camera; 15-Second Inspection Camera; 16-Positioning Platform; 17-Positioning Block; 18-Fifth Inspection Camera; 19-Placing Platform; 20-Linear Module; 21-Lifting Frame; 22-Suction Nozzle; 23-Carrier Track; 24-Cover Reel; 25-First Motor; 26-Bracket; 27-Guide Rod; 28-Defective Product Recycling Box; 29-Heat Sealing Rod; 30-Second Motor; 31-Appearance Inspection Camera; 32-Sixth Inspection Camera; 33-Roller; 34-Outrigger;

[0031] 100 - First transport unit; 200 - Second transport unit; 300 - Third transport unit; 400 - Fourth transport unit. Detailed Implementation

[0032] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. In the following detailed description of the present utility model, some specific details are described in detail. However, for the parts not described in detail, those skilled in the art can fully understand the present utility model.

[0033] Furthermore, those skilled in the art should understand that the accompanying drawings are provided only to illustrate the purpose, features, and advantages of this utility model, and are not actually drawn to scale.

[0034] Furthermore, unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to."

[0035] like Figure 1-4As shown in the figure, this utility model provides a flexible carrier tape packaging machine based on 3D vision inspection, including a workbench 1 and a cabinet 2 above it. The cabinet 2 is equipped with a conveyor belt, a feeding station, an inspection station, and a packaging station placed on the workbench 1. The feeding hopper 3 of the feeding station, the carrier tape tray 4 of the packaging station, and the finished product tray 5 all extend to the outside of the cabinet 2 to facilitate loading and unloading by the staff. The conveyor belt is located between the feeding station and the packaging station. The feeding station is equipped with a feeding hopper 3 and a first conveying unit 100 above it for moving the product 00 of the feeding station onto the conveyor belt. The inspection station includes a front inspection station and a rear inspection station. The front inspection unit of the front inspection station... The unit is used to inspect the appearance of product 00 moved onto the conveyor belt by the first handling unit. The rear inspection unit of the rear inspection station is used to inspect the appearance of product 00 before it is placed on the carrier belt. The side of the conveyor belt is equipped with a second handling unit 200 and a defective product rejection mechanism 500. A third handling unit 300 is provided between the rear inspection station and the packaging station. The packaging unit of the packaging station is used to package qualified products in the carrier belt and wind them onto the finished product reel 5. A controller is provided inside the lower part of the workbench 1. The conveyor belt, the first handling unit, the second handling unit, the third handling unit, the defective product rejection mechanism, and the packaging unit are all connected to the controller. The cabinet 2 is equipped with a control panel 6 connected to the controller. 00 in the figure is a schematic diagram of the product shielding cover. The operator controls the components of each station inside through the control panel to realize the automatic packaging of electronic products. In specific manufacturing, the cabinet door of the cabinet 2 is equipped with a transparent panel to facilitate observation of the internal working status; at the same time, the cabinet doors are all connected to the cabinet frame by hinges for easy operation and maintenance. Meanwhile, rollers 33 and adjustable support legs 34 are installed at the bottom of the workbench. The rollers make it easy to move to any work location, and the support legs keep the workbench fixed after arriving at the work location, ensuring the stability of the workbench during the packaging process.

[0036] In specific embodiments of this utility model, such as Figure 2 , 4As shown, the feeding hopper 3 is shaped like a sieve, and its opening is located above the vibratory plate 7. The bottom of the vibratory plate 7 is equipped with a vibratory motor connected to a controller. Both the feeding hopper 3 and the vibratory plate 7 are inclined downwards at 10±5° towards the first conveying unit. The first conveying unit includes an XY bidirectional moving assembly 8 and a lifting arm 9 with multiple suction cups. The XY bidirectional moving assembly 8 drives the lifting arm 9 to move bidirectionally in the left-right and horizontal directions. The suction cups connected to the air source are connected to the mounting frame of the lifting arm 9 through a lifting and rotating mechanism. Multiple suction cups are arranged in a row at the lower end of the lifting and rotating mechanism. An appearance inspection camera 31 is located above the vibratory plate 7 to detect the front and back sides of the product on the vibratory plate 7 and the material handling direction. The lifting arm moves in the left-right and forward-backward directions through the XY bidirectional moving assembly, which is existing technology and will not be described further here. Meanwhile, the lifting and rotating mechanism includes a micro motor and a belt drive assembly. The two pulleys of the belt drive assembly are fixed inside the moving arm. The vacuum suction cup is fixed to the belt through the micro motor, and the vacuum suction cup is fixed to the end of the output shaft of the micro motor. When the appearance inspection camera detects that the product on the vibratory plate below is not facing forward or is not oriented correctly, the product orientation is adjusted to be consistent through the cooperation of the lifting and rotating mechanism and the vacuum suction cup.

[0037] As a preferred structure, such as Figure 3 As shown, there are two conveyor belts: a first conveyor belt 10 and a second conveyor belt 11 arranged side-by-side along the same straight line. The first conveyor belt 10 is located on the side of the vibrating plate 7, and the front inspection station is located at the discharge end of the first conveyor belt 10. The second handling unit 200 is located on the side between the first conveyor belt 10 and the second conveyor belt 11, and is used to transfer products from the first conveyor belt 10 to the second conveyor belt 11. The defective product removal mechanism is located on the side of the loading end of the second conveyor belt 11, and the rear inspection station is located at the discharge end of the second conveyor belt 11. Figure 6 , 7 As shown, the front inspection unit includes a first inspection camera 14, a second inspection camera 15, and a third inspection camera. The first and second inspection cameras 14 and 15 are arranged side-by-side above the discharge end of the first conveyor belt 10 to inspect the appearance quality of the product. The third inspection camera is mounted on a frame above a positioning platform 16 between the first and second conveyor belts 10 and 11. The positioning platform 16 has positioning blocks 17 around its perimeter for positioning the product. The positioning blocks 17 are inclined downwards towards the center to guide the product edges. The platform of the positioning platform 17 is made of transparent material, and the bottom housing has a built-in light source to detect whether the product is cracked. When a risky product has an unqualified appearance or is cracked, it is removed from the conveyor belt by a defective product rejection mechanism.

[0038] Among them, the first detection camera 14, the second detection camera 15 and the third detection camera are all CCD cameras. Through multiple previous detections, they can monitor the appearance and cracking of the product.

[0039] In specific design, such as Figure 5 As shown, the defective product removal mechanism includes an air gun 12 and a collection box 13. The air gun 12, connected to compressed air, is controlled by a controller. The air outlet of the air gun 12 faces the products on the second conveyor belt 11. The air gun 12 and the collection box 13 are respectively located on both sides of the second conveyor belt 11. The high-pressure airflow from the air gun can blow defective products into the collection box, realizing automatic product screening.

[0040] When the second conveyor belt moves the product to the post-inspection station, such as Figure 8 As shown, the post-inspection unit includes a fourth inspection camera and a fifth inspection camera 18. The fourth inspection camera is positioned below the transparent surface of the platform 19 and is connected to a linear module 20. The linear module 20 drives the fourth inspection camera to inspect the flatness of the product on the platform 19. The fifth inspection camera 18 is positioned between the fourth inspection camera and the packaging station and is used to perform aerial scanning inspection of the bottom surface appearance of the product. A fourth transport unit 400 is provided on the side of the platform 19 to move the product from the second conveyor belt 11 to the platform 19. A third transport unit 300 is used to move the product from the platform 19 to the packaging station. In specific manufacturing, a KK module is selected as the linear module. The KK module drives the fourth inspection camera to move back and forth below the platform, enabling it to scan the electronic products on the platform and detect the flatness of the products. The fourth inspection camera is a line laser camera, and the fifth inspection camera is a CCD camera, which respectively inspect the flatness and bottom surface appearance of the product.

[0041] In specific design, such as Figure 3 As shown, the third and fourth transport units have the same structure, both including an XY bidirectional moving assembly 8 and a lifting frame 21 with two suction nozzles 22. The suction nozzles 22, connected to the air source, are connected to the lifting mechanism inside the lifting frame. The lifting frame is driven by the XY bidirectional moving assembly 8, which is existing technology and will not be described in detail here. Meanwhile, the second transport unit 200 includes a left-right translation assembly and a lifting assembly. The lifting assembly is connected to the left-right translation assembly, and the bottom movable end of the lifting assembly has two parallel suction cups. Above the discharge end of the second conveyor belt 11, a sixth detection camera 32 connected to the second transport unit 200 is provided. The sixth detection camera 32 is used to detect the position of the finished product on the second conveyor belt 11 and transmit the product position signal to the second transport unit 200, ensuring that the suction cups of the second transport unit can accurately pick up the product below.

[0042] The left and right translation components and the lifting components can be driven by cylinders, lead screws or belts, as long as they can move the suction cup left and right and up and down.

[0043] In specific embodiments of this utility model, such as Figure 4 As shown, the packaging unit includes a carrier track 23, a carrier reel 4, a cover reel 24, and a finished product reel 5. The carrier track 23 is mounted on the workbench 1. The carrier reel 4 is located on the front side of the cabinet 2 and at the front end of the carrier track 23. The finished product reel 5 is located on the rear side of the cabinet 2. The cover reel 24 and the finished product reel 5 are respectively located on the upper and lower sides of the carrier track 23. The finished product reel 5 is driven by a first motor 25. The discharge end of the carrier track 23 is provided with a sealing assembly for pressing and sealing the cover tape onto the carrier tape surface. The carrier tape on the carrier reel 4 can be conveyed along the carrier track 23 and, after being sealed with the cover tape, wrapped around the finished product reel 5. The product on the shelf 19 is moved above the carrier track 23 by the third conveying unit 300 and placed in the cavity of the carrier tape. In specific manufacturing, the carrier reel 4 and the finished product reel 5 are connected to the workbench 1 via brackets 26. Both the carrier reel 4 and the cover reel 24 have rotation dampers on their rotating shafts to control their rotation speed. Simultaneously, the feed side of the carrier track 23 is equipped with a guide rod 27 to ensure that the carrier tape on the carrier reel 4 does not exceed the height of the carrier track 23. A defective product recycling box 28 is provided on the side of the loading end of the carrier track 23. When the fourth and fifth inspection cameras detect defective products, the third handling unit simultaneously picks up two products, moves the defective product above the defective product recycling box, and then releases the product from the suction nozzle, allowing it to fall into the recycling box. Qualified products are placed in the holes of the carrier tape on the carrier track.

[0044] In the specific production process, such as Figure 4 As shown, the sealing assembly includes a heat-sealing rod 29 and an internal heating wire. The heat-sealing rod 29 is driven by a second motor 30, which brakes the heat-sealing rod 29 and presses the cover tape onto the upper surface of the carrier tape. Two or more heat-sealing rods can be arranged side-by-side to sequentially press and seal the cover tape on the carrier tape, ensuring a good sealing effect. Furthermore, to ensure orderly output of the cover tape, multiple guide rods can be installed between the cover tape reel and the heat-sealing rods to maintain a certain tension in the cover tape.

[0045] In summary, this invention boasts advantages such as compact structure, high automation, and high product qualification rate. The product is manually placed into the feeding hopper, and flexible feeding is achieved through the cooperation of a vibratory feeder and the first conveyor unit. The product undergoes top surface appearance and crack detection via first, second, and third inspection cameras at the end of the first conveyor belt, and defective products are blown into a defective product collection box using an air gun. Then, the product's flatness and bottom surface appearance are detected by fourth and fifth inspection cameras at the end of the second conveyor belt, placing defective products into a defective product recycling box and qualified products into the carrier belt. Finally, a heat-sealing rod seals the cover tape and carrier belt. This invention utilizes a cabinet to protect the product and achieves automatic feeding, automatic detection, and automatic packaging through a control panel and controller, improving the automation level and packaging efficiency of the equipment, avoiding missed inspections, and ensuring the quality of electronic products. This invention is particularly suitable for mass production line packaging of electronic products.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A flexible carrier packaging machine for shielding covers based on 3D vision inspection, characterized in that: The system includes a workbench and a cabinet above it. The cabinet contains a conveyor belt placed on the workbench, a loading station, an inspection station, and a packaging station. The loading hopper of the loading station and the carrier reel and finished product reel of the packaging station extend to the outside of the cabinet. The conveyor belt is positioned between the loading station and the packaging station. The loading station has a loading hopper and a first conveying unit above it for transferring products from the loading station onto the conveyor belt. The inspection station includes a front inspection station and a rear inspection station. The front inspection unit of the front inspection station is used to inspect the appearance of the products on the conveyor belt. The post-inspection unit at the inspection station is used to inspect the appearance of the product before it is placed on the carrier belt. A second handling unit and a defective product rejection mechanism are provided on the side of the conveyor belt. A third handling unit is provided between the post-inspection station and the packaging station. The packaging unit at the packaging station is used to package qualified products in the carrier belt and wind them onto the finished product reel. A controller is provided inside the lower part of the workbench. The conveyor belt, the first handling unit, the second handling unit, the third handling unit, the defective product rejection mechanism, and the packaging unit are all connected to the controller. A control panel connected to the controller is provided on the cabinet.

2. The flexible carrier packaging machine for shielding covers based on 3D vision inspection according to claim 1, characterized in that: The feeding hopper is shaped like a sieve, with its opening positioned above the vibratory feeder. A vibratory motor connected to a controller is located at the bottom of the vibratory feeder. Both the feeding hopper and the vibratory feeder are tilted downwards at 10±5° towards the first conveying unit. The first conveying unit includes an XY bidirectional moving assembly and a lifting arm with multiple suction cups. The XY bidirectional moving assembly drives the lifting arm to move bidirectionally in both the left-right and horizontal directions. The suction cups, connected to an air source, are connected to the mounting frame of the lifting arm via a lifting and rotating mechanism. Multiple suction cups are arranged in a row at the lower end of the lifting and rotating mechanism. An appearance inspection camera is located above the vibratory feeder to detect the front and back of the product on the vibratory feeder and the material handling direction.

3. The flexible carrier packaging machine for shielding covers based on 3D vision inspection according to claim 2, characterized in that: The conveyor belts are two in number, namely a first conveyor belt and a second conveyor belt arranged side by side along the same straight line. The first conveyor belt is located on the side of the vibrating plate, and the front inspection station is located at the discharge end of the first conveyor belt. The second handling unit is located on the side between the first and second conveyor belts and is used to transfer products from the first conveyor belt to the second conveyor belt. The defective product rejection mechanism is located on the side of the loading end of the second conveyor belt, and the rear inspection station is located at the discharge end of the second conveyor belt.

4. A flexible carrier packaging machine for shielding covers based on 3D vision inspection according to claim 3, characterized in that: The defective product removal mechanism includes an air gun and a collection box. The air gun, which is connected to compressed air, is controlled by a controller. The air outlet of the air gun faces the products on the second conveyor belt. The air gun and the collection box are respectively located on both sides of the second conveyor belt.

5. A flexible carrier packaging machine for shielding covers based on 3D vision inspection according to claim 3, characterized in that: The front inspection unit includes a first inspection camera, a second inspection camera, and a third inspection camera. The first and second inspection cameras are arranged side by side above the discharge end of the first conveyor belt and are used to inspect the appearance quality of the product. The third inspection camera is set on a frame above a positioning platform between the first and second conveyor belts. The positioning platform has positioning blocks around its perimeter for positioning the product. The platform surface is made of transparent material and the bottom housing has a built-in light source for detecting whether the product is cracked.

6. A flexible carrier packaging machine for shielding covers based on 3D vision inspection according to claim 3, characterized in that: The post-inspection unit includes a fourth inspection camera and a fifth inspection camera. The fourth inspection camera is located below the transparent surface of the platform and is connected to a linear module. The linear module is used to drive the fourth inspection camera to inspect the flatness of the product on the platform. The fifth inspection camera is located between the fourth inspection camera and the packaging station and is used to inspect the bottom surface appearance quality of the product. A fourth transport unit is provided on the side of the platform to move the product on the second conveyor belt to the platform. The third transport unit is used to move the product on the platform to the packaging station.

7. A flexible carrier packaging machine for shielding covers based on 3D vision inspection according to claim 6, characterized in that: The third transport unit and the fourth transport unit have the same structure, both including an XY bidirectional moving component and a lifting frame with two suction nozzles. The suction nozzles connected to the air source are connected to the lifting mechanism inside the lifting frame, which is driven by the XY bidirectional moving component. The second conveying unit includes a left-right translation component and a lifting component. The lifting component is connected to the left-right translation component. The bottom movable end of the lifting component is provided with two parallel suction cups. A sixth detection camera connected to the second conveying unit is provided above the discharge end of the second conveyor belt for positioning the products on the second conveyor belt.

8. A flexible carrier packaging machine for shielding covers based on 3D vision inspection according to claim 6 or 7, characterized in that: The packaging unit includes a carrier track, a carrier reel, a cover reel, and a finished product reel. The carrier track is located on the workbench, the carrier reel is located on the front side of the cabinet and at the front end of the carrier track, and the finished product reel is located on the rear side of the cabinet. The cover reel and the finished product reel are correspondingly located on the upper and lower sides of the carrier track. The finished product reel is driven by a first motor. The discharge end of the carrier track is equipped with a sealing component for pressing and sealing the cover tape onto the carrier tape surface. The carrier tape on the carrier reel can be conveyed along the carrier track and sealed with the cover tape before being wound onto the finished product reel. The product on the display table is moved above the carrier track by a third conveying unit and placed in the cavity of the carrier tape.

9. A flexible carrier packaging machine for shielding covers based on 3D vision inspection according to claim 8, characterized in that: The sealing assembly includes a heat-sealing rod and an internal heating wire. The heat-sealing rod is driven by a second motor, which brakes the heat-sealing rod and presses the cover tape onto the upper surface of the carrier tape.

10. A flexible carrier packaging machine for shielding covers based on 3D vision inspection according to claim 8, characterized in that: The feed side of the carrier track is provided with a guide rod to ensure that the carrier belt on the carrier reel is not higher than the carrier track; the side of the loading end of the carrier track is provided with a defective product recycling box.

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