Apparent defect visual inspection system for RFID antenna production

Abstract

The invention discloses an appearance defect visual detection system for RFID antenna production, and belongs to the technical field of RFID antenna production, the appearance defect visual detection system comprises a detection box, and the detection box is arranged at the upper end of a supporting base and is used for detecting the appearance of an RFID antenna; the conveying mechanism is transversely arranged at the front part of the workbench; the cleaning mechanism is arranged on the left side of the rear part of the workbench and is used for cleaning dust pollutants on the surfaces of the conveyed RFID antenna products so as to facilitate subsequent accurate visual inspection; and the visual detection mechanism is arranged on the right side of the rear part of the workbench and is used for carrying out visual detection on the integrity of the surface and the side surface of the conveyed RFID antenna product. According to the invention, visual inspection can be automatically carried out on the appearance defects of the RFID antenna products, so that quality inspection personnel can be helped to pick out defective products, the shipment quality of the products is ensured, automatic operation can be realized, the working efficiency is improved, and the labor cost can also be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of RFID antenna production, and in particular relates to an appearance defect visual detection system for RFID antenna production. Background Art

[0002] RFID (Radio Frequency Identification) technology, as a contactless automatic identification technology, has been widely used in many fields such as logistics, retail, and transportation. As one of the core components of the RFID system, the performance and quality of the RFID antenna directly affect the recognition effect and stability of the entire system. The appearance defects of the antenna, such as scratches, damage, deformation, etc., will not only affect its appearance, but may also lead to a decrease in electrical performance, thus affecting the normal operation of the RFID system.

[0003] At present, in the production process of RFID antennas, traditional appearance defect detection mainly relies on manual visual inspection. However, this method has many disadvantages. On the one hand, manual inspection is inefficient and difficult to meet the growing production needs; on the other hand, long-term inspection work can easily lead to fatigue of inspectors, making it difficult to ensure the accuracy and consistency of inspection, and prone to missed inspections and false inspections. At the same time, manual inspection is highly subjective, and different inspectors may have different criteria for judging defects.

[0004] With the rapid development of industrial automation, the requirements for production efficiency and product quality are constantly increasing. Therefore, it is of great practical significance to develop a high-precision, high-efficiency, and automated visual inspection system for appearance defects in RFID antenna production. It can not only improve production efficiency and reduce labor costs, but also ensure the stability of product quality and enhance the competitiveness of enterprises in the market. Summary of the invention

[0005] The purpose of the present invention is to provide a visual inspection system for appearance defects in RFID antenna production in order to solve the problem of low efficiency in the appearance inspection of existing RFID antennas.

[0006] The technical solution adopted by the present invention is as follows:

[0007] Visual inspection system for appearance defects in RFID antenna production, including

[0008] A support base, wherein a workbench is provided on the top of the support base for supporting the entire device;

[0009] A detection box, which is arranged at the upper end of the support base and is used to detect the appearance of the RFID antenna;

[0010] A conveying mechanism, which is disposed transversely at the front of the workbench and is used to convey the RFID antenna product to be tested into the testing box for testing;

[0011] A cleaning mechanism, which is arranged on the left side of the rear part of the workbench and is used to clean dust and pollutants on the surface of the RFID antenna product being conveyed so as to facilitate subsequent accurate visual inspection;

[0012] A visual inspection mechanism, which is arranged on the right side of the rear part of the workbench and is used to visually inspect the integrity of the surface and side of the RFID antenna product being conveyed;

[0013] The controller is arranged outside the detection box and is used to control the operation of the electronic devices in the system.

[0014] Preferably, the detection box is square in shape, with double-opening doors on the front and back sides; and conveying openings for the conveying mechanism to pass through are provided on both sides of the detection box.

[0015] Preferably, the conveying mechanism includes a conveying support, a conveying bracket and a conveyor belt, and there are two conveying brackets, which are symmetrically arranged front and back; the two conveying brackets are installed on the workbench through the conveying support; pulleys are provided between the two ends of the two conveying brackets, and the conveyor belt transmission is arranged on the pulleys at both ends; a conveying drive box for driving the pulley to rotate is provided on the outer side of one of the conveying brackets, and a plurality of blocks are symmetrically provided on the front and rear sides of the outer surface of the pulley, and the blocks are L-shaped.

[0016] During operation, the drive motor in the transmission drive box rotates the pulley and the conveyor belt, thereby transporting the RFID antenna product placed on the conveyor belt to the detection box for detection.

[0017] Preferably, the cleaning bracket, cleaning cylinder, U-shaped frame, cleaning liquid spraying mechanism, cleaning motor, cleaning roller; the lower end of the cleaning bracket is fixedly mounted on the upper end surface of the workbench, the cleaning cylinder is mounted on the upper part of the cleaning bracket, and the lower end of the cleaning cylinder is installed through the top of the cleaning bracket and is fixedly connected to the upper end of the U-shaped frame; the cleaning roller is rotatably connected in the lower end opening of the U-shaped frame; the cleaning motor is mounted on the outer side of the U-shaped frame, and the output end of the cleaning motor is connected to the axial end of the cleaning roller; the cleaning liquid spraying mechanism is arranged inside the U-shaped frame and is located above the cleaning roller, and is used for automatically and intermittently spraying cleaning liquid on the cleaning roller.

[0018] When the system detects the arrival of a product, the cleaning cylinder starts working, driving the U-shaped frame to move downward, and the cleaning motor drives the cleaning roller to rotate. At the same time, the cleaning liquid spraying mechanism sprays the cleaning liquid on the surface of the cleaning roller. The cleaning roller contacts the surface of the product and rotates and wipes, so that the surface dirt of the RFID antenna product is cleaned, making the subsequent visual inspection more accurate.

[0019] Preferably, the cleaning liquid spraying mechanism comprises a spray pipe and a sealing sleeve, the two ends of the spray pipe are arranged on the two side walls of the U-shaped frame, one end is sealed, and the other end is connected to the cleaning liquid storage box through a hose; the lower end of the spray pipe is provided with a plurality of spray holes;

[0020] The sealing sleeve is movably mounted on the outside of the nozzle, and the lower part of the sealing sleeve is provided with sealing rings with the same number of nozzle holes. The sealing sleeve and the sealing end of the nozzle pass through the side wall of the U-shaped frame together and extend outward, and the sealing sleeve can move laterally relative to the nozzle and the U-shaped frame; the extended end of the sealing sleeve is provided with a first baffle and a second baffle, the first baffle is located inside the U-shaped frame, and the second baffle is located outside the U-shaped frame, and the outside of the sealing sleeve is provided with a spring between the second baffle and the outer wall of the U-shaped frame, and support rods are symmetrically provided at both ends of the outer side surface of the second baffle, and rollers are rotatably installed at the ends of the support rods;

[0021] A wedge block is provided on the inner wall of the cleaning bracket. When the U-shaped frame moves downward and reaches the position of the wedge block, the roller contacts the wedge block. As the thickness of the wedge block increases, the roller is continuously squeezed, and the second baffle and the sealing sleeve move to the right together, so that the sealing ring on the sealing sleeve and the spray hole on the nozzle are misaligned, the spray hole opens, and the cleaning liquid is sprayed out of the spray hole and sprayed onto the cleaning roller; when the U-shaped frame passes through the wedge block, the sealing sleeve moves left again under the action of the spring to seal the spray hole.

[0022] Preferably, the visual detection mechanism includes a detection bracket, a slide rail, a detection motor, a motion platform, a mounting frame, a left camera, and a right camera; the detection bracket is fixedly installed on the workbench, and the upper end surface of the detection bracket is symmetrically provided with two slide rails, the lower end of the motion platform is slidably installed on the slide rail through a slider, the detection motor is installed on the upper end of the detection bracket, and the output end of the detection motor is connected to a threaded rod, the end of the threaded rod is installed on the upper end of the detection bracket through a bearing seat, the lower end of the motion platform is threadedly connected to the threaded rod, and the threaded rod is driven to rotate by the detection motor to make the motion platform move left and right; mounting grooves are symmetrically provided on both sides of the motion platform, and the mounting frames are installed in both mounting grooves, the left camera is installed at the end of the mounting frame on the left, and the right camera is installed at the end of the mounting frame on the right, and the left camera and the right camera are both tilted so that they can take pictures of the upper end surface of the RFID antenna, and at the same time, the left camera can also take pictures of the left side surface of the RFID antenna, and the right camera can also take pictures of the right side surface of the RFID antenna.

[0023] Preferably, the mounting frame is also provided with an illumination lamp, which is round and located in front of the camera. A through hole is provided in the middle of the illumination lamp for the camera to pass light through; the illumination lamp provides bright light for the camera to shoot clearer.

[0024] Preferably, it also includes an indicator light, which is arranged on the top of the detection box and is connected to the controller. When unqualified products appear, the indicator light lights up.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] 1. The present invention can automatically perform visual inspection on the appearance defects of RFID antenna products, thereby helping quality inspectors to pick out defective products and ensure the shipment quality of products. The automated operation improves work efficiency and reduces labor costs.

[0027] 2. The present invention sets a cleaning mechanism on the workbench and utilizes the rotation of the cleaning roller to wipe off the dirt on the surface of the product. At the same time, the cleaning liquid spraying mechanism automatically and intermittently sprays the cleaning liquid onto the cleaning roller to increase the wiping effect of the cleaning roller. Intermittent spraying can effectively save the use of cleaning liquid and avoid excessive spraying of cleaning liquid, which causes accumulation on the product surface and affects subsequent visual inspection.

[0028] 3. The present invention sets a visual inspection mechanism and uses the inclined left camera and right camera to perform comprehensive visual inspection of the front, left side and right side of the product, thereby increasing the accuracy of the inspection. At the same time, the positions and angles of the left camera and the right camera can be adjusted as needed to increase the adaptability of the system.

[0029] 4. The present invention provides circular lighting lamps with through holes in front of the left camera and the right camera to increase the brightness of visual detection, thereby increasing the effect and accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of a visual inspection system for appearance defects in RFID antenna production;

[0031] Figure 2 A schematic diagram of the internal structure of the inspection box in the appearance defect visual inspection system for RFID antenna production;

[0032] Figure 3 This is a front view of the interior of the inspection box in the appearance defect visual inspection system used in RFID antenna production;

[0033] Figure 4 for Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0034] Figure 5 A schematic diagram of the structure of a cleaning mechanism in a visual inspection system for appearance defects used in RFID antenna production;

[0035] Figure 6 A schematic diagram of the disassembled structure of a cleaning liquid spraying mechanism in a visual inspection system for appearance defects in RFID antenna production;

[0036] Figure 7 A schematic diagram of the structure of a sealing sleeve in a visual inspection system for appearance defects in RFID antenna production;

[0037] Figure 8 A schematic diagram of the structure of the nozzle in the appearance defect visual inspection system for RFID antenna production;

[0038] Fig. 9 This is a schematic diagram of the structure of the visual inspection mechanism in the appearance defect visual inspection system used in RFID antenna production.

[0039] In the figure: 1. Support base; 2. Detection box; 3. Transmission mechanism; 4. Indicator light; 5. Controller; 6. Transmission port; 7. Workbench; 8. Cleaning mechanism; 9. Visual inspection mechanism;

[0040] 31. Conveying support; 32. Conveying bracket; 33. Conveying belt; 34. Conveying drive box; 35. Pulley; 36. Stopper;

[0041] 81. Cleaning bracket; 82. Cleaning cylinder; 83. U-shaped frame; 84. Cleaning liquid spraying mechanism; 85. Cleaning motor; 86. Cleaning roller; 87. Wedge block;

[0042] 91. Detection bracket; 92. Slide rail; 93. Detection motor; 94. Motion platform; 95. Mounting frame; 96. Left camera; 97. Right camera; 98. Illuminating lamp; 99. Mounting slot;

[0043] 841, nozzle; 842, sealing sleeve;

[0044] 8411, spray hole; 8421, sealing ring; 8422, first baffle; 8423, spring; 8424, second baffle; 8245, support rod; 8426, roller. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] Reference Figure 1-9 , a visual inspection system for appearance defects in RFID antenna production, comprising a supporting base 1, an inspection box 2, a conveying mechanism 3, a cleaning mechanism 8, a visual inspection mechanism 9 and a controller 5; a workbench 7 is provided on the top of the supporting base 1 for supporting the entire device; the inspection box 2 is arranged at the upper end of the supporting base 1 for inspecting the appearance of the RFID antenna; the conveying mechanism 3 is arranged horizontally in front of the workbench 7 for conveying the RFID antenna product to be inspected into the inspection box 2 for inspection; the cleaning mechanism is arranged on the left rear part of the workbench 7 for cleaning the dust contaminants on the surface of the conveyed RFID antenna product for subsequent accurate visual inspection; the visual inspection mechanism 9 is arranged on the right rear part of the workbench 7 for visual inspection of the integrity of the surface and side of the conveyed RFID antenna product; the controller 5 is arranged on the outside of the inspection box 2 for controlling the operation of the electronic devices in the system.

[0047] The detection box 2 is square in shape, with doors opening on the front and back sides; and conveying openings 6 for the conveying mechanism 3 to pass through are provided on both sides of the detection box 2 .

[0048] Reference Figure 2-4In this embodiment, the conveying mechanism 3 includes a conveying support 31, a conveying bracket 32 ​​and a conveyor belt 33. There are two conveying brackets 32, which are symmetrically arranged front and back; the two conveying brackets 32 are installed on the workbench 7 through the conveying support 31; pulleys 35 are provided between the two ends of the two conveying brackets 32, and the conveyor belt 33 is driven on the pulleys 35 at both ends; a conveying driving box 34 for driving the pulley 35 to rotate is provided on the outer side of one of the conveying brackets 32, and a plurality of blocks 36 are symmetrically provided on the front and rear sides of the outer surface of the pulley 35, and the block 36 is L-shaped.

[0049] During operation, the driving motor in the transmission driving box 34 rotates the pulley 35 and the conveyor belt 33, thereby transporting the RFID antenna product placed on the conveyor belt 33 to the detection box 2 for detection.

[0050] Reference Figure 5-8 In this embodiment, there are a cleaning bracket 81, a cleaning cylinder 82, a U-shaped frame 83, a cleaning liquid spraying mechanism 84, a cleaning motor 85, and a cleaning roller 86; the lower end of the cleaning bracket 81 is fixedly mounted on the upper end surface of the workbench 7, the cleaning cylinder 82 is mounted on the upper part of the cleaning bracket 81, and the lower end of the cleaning cylinder 82 is fixedly connected to the upper end of the U-shaped frame 83 through the top of the cleaning bracket 81; the cleaning roller 86 is rotatably connected in the lower end opening of the U-shaped frame 83; the cleaning motor 85 is mounted on the outer side of the U-shaped frame 83, and the output end of the cleaning motor 85 is connected to the axial end of the cleaning roller 86; the cleaning liquid spraying mechanism 84 is arranged inside the U-shaped frame 83, and is located above the cleaning roller 86, and is used for automatically and intermittently spraying cleaning liquid on the cleaning roller 86.

[0051] When the system detects the arrival of a product, the cleaning cylinder 82 starts working, driving the U-shaped frame 83 to move downward, and the cleaning motor 85 drives the cleaning roller 86 to rotate. At the same time, the cleaning liquid spraying mechanism 84 sprays the cleaning liquid on the surface of the cleaning roller 86. The cleaning roller 86 contacts the surface of the product and rotates and wipes, so that the surface dirt of the RFID antenna product is cleaned, making the subsequent visual inspection more accurate.

[0052] In this embodiment, the cleaning liquid spraying mechanism 84 includes a nozzle 841 and a sealing sleeve 842. The two ends of the nozzle 841 are arranged on the two side walls of the U-shaped frame 83, one end of which is sealed, and the other end is connected to the cleaning liquid storage box through a hose. The cleaning liquid storage box is arranged at the rear side of the workbench 7 and is higher than the U-shaped frame 83 so that the cleaning liquid can automatically flow out under the action of gravity; the lower end of the nozzle 841 is provided with a plurality of spray holes 8411;

[0053] Wherein, the cleaning liquid is isopropyl alcohol, and the surface of the cleaning roller 86 is provided with a soft, lint-free wiping cloth, such as a clean silver mirror cloth;

[0054] Reference Figure 6 and 7 The sealing sleeve 842 is movably sleeved on the outside of the nozzle 841. The lower part of the sealing sleeve 842 is provided with sealing rings 8421 with the same number as the nozzle holes 8411. The sealing sleeve 842 and the sealing end of the nozzle 841 pass through the side wall of the U-shaped frame 83 together and extend outward, and the sealing sleeve 842 can move laterally relative to the nozzle 841 and the U-shaped frame 83; the extended end of the sealing sleeve 842 is provided with a first baffle 8422 and a second baffle 8424, the first baffle 8422 is located inside the U-shaped frame 83, the second baffle 8424 is located outside the U-shaped frame 83, the outside of the sealing sleeve 842 is provided with a spring 8423 between the second baffle 8424 and the outer wall of the U-shaped frame 83, and the two ends of the outer side surface of the second baffle 8424 are symmetrically provided with support rods 8425, and the ends of the support rods 8425 are rotatably installed with rollers 8426;

[0055] A wedge block 87 is provided on the inner wall of the cleaning bracket 81. When the U-shaped frame 83 moves downward and reaches the position of the wedge block 87, the roller 8426 contacts the wedge block 87. As the thickness of the wedge block 87 increases, the roller 8426 is continuously squeezed, and the second baffle 8424 and the sealing sleeve 842 move to the right together, so that the sealing ring 8421 on the sealing sleeve 842 and the spray hole 8411 on the nozzle 841 are misaligned, the spray hole 8411 opens, and the cleaning liquid is sprayed out of the spray hole 8411 and sprayed onto the cleaning roller 86; when the U-shaped frame 83 passes through the wedge block 87, the sealing sleeve 842 moves to the left again under the action of the spring 8423 to block the spray hole 8411.

[0056] Reference Fig. 9In this embodiment, the visual inspection mechanism 9 includes a detection bracket 91, a slide rail 92, a detection motor 93, a motion platform 94, a mounting frame 95, a left camera 96, and a right camera 97; the detection bracket 91 is fixedly mounted on the workbench 7, two slide rails 92 are symmetrically arranged on the upper end surface of the detection bracket 91, the lower end of the motion platform 94 is slidably mounted on the slide rail 92 through a slider, the detection motor 93 is mounted on the upper end of the detection bracket 91, and the output end of the detection motor 93 is connected to the threaded rod, the end of the threaded rod is mounted on the upper end of the detection bracket 91 through a bearing seat, and the lower end of the motion platform 94 is threadedly connected to the threaded rod , the threaded rod is driven to rotate by the detection motor 93, so that the motion platform 94 moves left and right; the motion platform 94 is symmetrically provided with mounting grooves 99 on both sides, and mounting frames 95 are installed in the two mounting grooves 99. The left camera 96 ​​is installed at the end of the mounting frame 95 on the left, and the right camera 97 is installed at the end of the mounting frame 95 on the right. The left camera 96 ​​and the right camera 97 are both tilted so that they can take pictures of the upper end surface of the RFID antenna. At the same time, the left camera 96 ​​can also take pictures of the left side surface of the RFID antenna, and the right camera 97 can also take pictures of the right side surface of the RFID antenna.

[0057] Among them, the mounting frame 95 is also provided with an illumination lamp 98, which is round and located in front of the camera. A through hole is provided in the middle of the illumination lamp 98 for the camera to shoot light through; the illumination lamp 98 provides bright light for the camera to shoot clearer.

[0058] The visual inspection system also includes an indicator light 4, which is arranged on the top of the inspection box 2. The indicator light 4 is connected to the controller 5. When unqualified products appear, the indicator light 4 lights up.

[0059] Working principle of the present invention:

[0060] During operation, the produced RFID antenna products are placed on the conveyor belt 33, and the RFID antenna products are transported from the left end to the right end of the conveyor belt 33 and pass through the detection box 2;

[0061] When the RFID antenna product is transmitted to the bottom of the cleaning mechanism 2, the sensor under the conveyor belt 33 detects the arrival of the product, and the controller 5 controls the motor in the conveying drive box 34 to stop working temporarily, and then controls the cleaning cylinder 82 to extend, driving the U-shaped frame 83 to descend, and the cleaning motor 85 works at the same time, driving the cleaning roller 86 to rotate. As the U-shaped frame 83 descends, the cleaning roller 86 contacts the surface of the product, and wipes off the dirt and dust on the surface of the product by rotating, so as to facilitate subsequent visual inspection, reduce interference factors in the inspection, and ensure the surface cleanliness of the product;

[0062] During the descent of the U-shaped frame 83, the roller 8426 on the cleaning liquid spraying mechanism 84 passes through the wedge block 87 on the cleaning bracket 81. As the thickness of the wedge block 87 increases, the roller 8426 is continuously squeezed, and the second baffle 8424 and the sealing sleeve 842 move rightward together, so that the sealing ring 8421 on the sealing sleeve 842 and the spray hole 8411 on the spray pipe 841 are misaligned, and the spray hole 8411 is opened, and the cleaning liquid is sprayed out from the spray hole 8411 and sprayed onto the cleaning roller 86, thereby increasing the wiping effect of the cleaning roller 86; after the U-shaped frame 83 passes through the wedge block 87, the sealing sleeve 842 moves leftward again under the action of the spring 8423 to block the spray hole 8411;

[0063] After the RFID antenna product is cleaned, it continues to be transmitted to the bottom of the visual inspection mechanism 9. The sensor under the conveyor belt 33 detects the product, and the right controller 5 pauses the rotation of the conveyor belt 33 again; the left camera 96 ​​and the right camera 97 perform visual inspection on the appearance of the product, and transmit the inspection results to the system controller, and the system judges the appearance of the product; when defective products appear, the indicator light 4 lights up, and the defective products are removed manually or by robots.

[0064] The present invention can automatically perform visual inspection on the appearance defects of RFID antenna products, thereby helping quality inspectors to pick out defective products and ensure the shipment quality of products. The automated operation can improve work efficiency and reduce labor costs.

[0065] The present invention arranges a cleaning mechanism 8 on a workbench 7, and utilizes the rotation of a cleaning roller 86 to wipe off dirt on the surface of the product. At the same time, a cleaning liquid spraying mechanism 84 automatically and intermittently sprays cleaning liquid onto the cleaning roller 86, thereby increasing the wiping effect of the cleaning roller 86. Intermittent spraying can effectively save the use of cleaning liquid and avoid excessive spraying of cleaning liquid, which causes accumulation on the product surface and affects subsequent visual inspection.

[0066] The present invention sets a visual inspection mechanism 9 and uses the inclined left camera 96 ​​and the right camera 97 to perform comprehensive visual inspection of the front, left side and right side of the product, thereby increasing the accuracy of the inspection. At the same time, the positions and angles of the left camera 96 ​​and the right camera 97 can be adjusted as needed to increase the adaptability of the system.

[0067] The present invention provides a circular lighting lamp 98 with a through hole in front of the left camera 96 ​​and the right camera 97 to increase the brightness of visual detection, thereby increasing the effect and accuracy of detection.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Visual inspection system for appearance defects in RFID antenna production, characterized by: include: A support base (1), wherein a workbench (7) is provided on the top of the support base (1) for supporting the entire device; A detection box (2), the detection box (2) being arranged at the upper end of the support base (1) and being used for detecting the appearance of the RFID antenna; A conveying mechanism (3), the conveying mechanism (3) being arranged transversely in front of the workbench (7) and used for conveying the RFID antenna product to be tested into the testing box (2) for testing; A cleaning mechanism (8), which is arranged on the left side of the rear part of the workbench (7) and is used to clean dust and contaminants from the surface of the RFID antenna product being conveyed so as to facilitate subsequent accurate visual inspection; A visual inspection mechanism (9), the visual inspection mechanism (9) being arranged on the right side of the rear portion of the workbench (7) and being used for visually inspecting the integrity of the surface and side surfaces of the transmitted RFID antenna product; A controller (5) is arranged outside the detection box (2) and is used to control the operation of electronic devices in the system.

2. The appearance defect visual inspection system for RFID antenna production according to claim 1, characterized in that: The detection box (2) is square in shape, with doors opening opposite to each other on the front and back sides; and conveying openings (6) for the conveying mechanism (3) to pass through are provided on both sides of the detection box (2).

3. The appearance defect visual inspection system for RFID antenna production according to claim 1, characterized in that: The conveying mechanism (3) comprises a conveying support (31), a conveying bracket (32) and a conveying belt (33). There are two conveying brackets (32) which are symmetrically arranged front and back. The two conveying brackets (32) are both mounted on a workbench (31) through the conveying support (31). A pulley (35) is arranged between the two ends of the two conveying brackets (32), and the conveying belt (33) is driven and arranged on the pulleys (35) at both ends. A conveying driving box (34) for driving the pulley (35) to rotate is arranged on the outer side of one of the conveying brackets (32). A plurality of stoppers (36) are symmetrically arranged on the front and back sides of the outer surface of the pulley (35), and the stoppers (36) are L-shaped.

4. The appearance defect visual inspection system for RFID antenna production according to claim 1, characterized in that: The cleaning bracket (81), the cleaning cylinder (82), the U-shaped frame (83), the cleaning liquid spraying mechanism (84), the cleaning motor (85), and the cleaning roller (86); the lower end of the cleaning bracket (81) is fixedly mounted on the upper end surface of the workbench (7), the cleaning cylinder (82) is mounted on the upper part of the cleaning bracket (81), and the lower end of the cleaning cylinder (82) passes through the top of the cleaning bracket (81) and is fixedly connected to the upper end of the U-shaped frame (83); the cleaning roller (86) is rotatably connected in the lower end opening of the U-shaped frame (83); the cleaning motor (85) is mounted on the outer side of the U-shaped frame (83), and the output end of the cleaning motor (85) is connected to the shaft end of the cleaning roller (86); the cleaning liquid spraying mechanism (84) is arranged inside the U-shaped frame (83) and located above the cleaning roller (86), and is used for automatically and intermittently spraying cleaning liquid on the cleaning roller (86).

5. The appearance defect visual inspection system for RFID antenna production according to claim 4, characterized in that: The cleaning liquid spraying mechanism (84) comprises a spray pipe (841) and a sealing sleeve (842). The two ends of the spray pipe (841) are arranged on the two side walls of the U-shaped frame (83), one end of which is sealed and the other end is connected to the cleaning liquid storage box through a hose. The lower end of the spray pipe (841) is provided with a plurality of spray holes (8411). The sealing sleeve (842) is movably sleeved on the outside of the nozzle (841), and the lower part of the sealing sleeve (842) is provided with sealing rings (8421) whose number is the same as the number of the nozzle holes (8411). The sealing ends of the sealing sleeve (842) and the nozzle (841) pass through the side wall of the U-shaped frame (83) together and extend outward, and the sealing sleeve (842) can move laterally relative to the nozzle (841) and the U-shaped frame (83); the extended end of the sealing sleeve (842) is provided with a first baffle (8422). and a second baffle (8424), wherein the first baffle (8422) is located inside the U-shaped frame (83), and the second baffle (8424) is located outside the U-shaped frame (83); a spring (8423) is provided outside the sealing sleeve (842) and between the second baffle (8424) and the outer wall of the U-shaped frame (83); support rods (8425) are symmetrically provided at both ends of the outer side surface of the second baffle (8424); and rollers (8426) are rotatably installed at the ends of the support rods (8425); A wedge block (87) is provided on the inner side wall of the cleaning bracket (81). When the U-shaped frame (83) moves downward and reaches the position of the wedge block (87), the roller (8426) contacts the wedge block (87). As the thickness of the wedge block (87) increases, the roller (8426) is continuously squeezed, and the second baffle (8424) and the sealing sleeve (842) move rightward together, so that the sealing ring (8421) on the sealing sleeve (842) and the spray hole (8411) on the nozzle (841) are misaligned, the spray hole (8411) is opened, and the cleaning liquid is sprayed out from the spray hole (8411) and sprayed onto the cleaning roller (86); when the U-shaped frame (83) passes the wedge block (87), the sealing sleeve (842) moves left again under the action of the spring (8423) to block the spray hole (8411).

6. The appearance defect visual inspection system for RFID antenna production according to claim 1, characterized in that: The visual inspection mechanism (9) comprises an inspection bracket (91), a slide rail (92), an inspection motor (93), a motion platform (94), a mounting frame (95), a left camera (96), and a right camera (97); the inspection bracket (91) is fixedly mounted on the workbench (7); the upper end surface of the inspection bracket (91) is symmetrically provided with two slide rails (92); the lower end of the motion platform (94) is slidably mounted on the slide rail (92) via a slider; the inspection motor (93) is mounted on the upper end of the inspection bracket (91); the output end of the inspection motor (93) is connected to a threaded rod; the end of the threaded rod is mounted on the upper end of the inspection bracket (91) via a bearing seat; the lower end of the motion platform (94) is threadedly connected to the threaded rod. The detection motor (93) drives the threaded rod to rotate, so that the motion platform (94) moves left and right; the two sides of the motion platform (94) are symmetrically provided with mounting grooves (99), and the mounting frames (95) are installed in the two mounting grooves (99); the left camera (96) is installed at the end of the mounting frame (95) on the left side, and the right camera (97) is installed at the end of the mounting frame (95) on the right side; the left camera (96) and the right camera (97) are both tilted so that they can take pictures of the upper end surface of the RFID antenna, and at the same time, the left camera (96) can also take pictures of the left side surface of the RFID antenna, and the right camera (97) can also take pictures of the right side surface of the RFID antenna.

7. The appearance defect visual inspection system for RFID antenna production according to claim 6, characterized in that: The mounting frame (95) is also provided with an illumination lamp (98), which is circular and located in front of the camera. A through hole is provided in the middle of the illumination lamp (98) for the camera to shoot light through.

8. The appearance defect visual inspection system for RFID antenna production according to any one of claims 1 to 7, characterized in that: The device also includes an indicator light (4), which is arranged on the top of the detection box (2). The indicator light (4) is connected to the controller (5). When unqualified products appear, the indicator light (4) lights up.

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