An optical lens appearance defect detection device

Abstract

The application belongs to the technical field of optical lens detection, and particularly relates to an optical lens appearance defect detection device, which comprises a supporting assembly, a feeding device is installed on the supporting assembly, a first discharging slide plate is installed at the discharging end of the feeding device, a mounting seat is fixedly connected to the supporting assembly below the first discharging slide plate, supporting rollers are rotationally connected to both ends of the mounting seat, and the cooperation of the structures such as the belt ring, the first visual defect detection camera, the pushing cylinder, the guide plate and the driving roller is achieved, so that after the optical lens is accurately positioned in the positioning groove formed in the belt ring, the first visual defect detection camera arranged on both sides is used to detect the end of the optical lens, then the pushing cylinder is used to push the optical lens to the driving roller, the driving roller is rotated to drive the optical lens to slowly rotate, the second visual defect detection camera is used to detect the circumferential side of the optical lens, and the mechanical hand is not needed to be used for carrying and aligning, so that the detection efficiency is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of optical lens inspection technology, and specifically relates to an optical lens appearance defect detection device. Background Technology

[0002] Optical lenses are essential components in machine vision systems, directly affecting image quality and the implementation and effectiveness of algorithms. Optical lenses can be categorized by focal length (short focal length, medium focal length, telephoto); by field of view (wide-angle, standard, telephoto); and by structure (fixed aperture prime lenses, manual aperture prime lenses, automatic aperture prime lenses, manual zoom lenses, autofocus lenses, and automatic aperture motorized zoom lenses, etc.).

[0003] After optical lenses are manufactured and assembled, they need to undergo appearance defect inspection to remove defective products with appearance defects and improve product quality. Existing appearance defect inspection equipment generally sets up multiple inspection areas and uses robotic arms to move and align the optical lenses in multiple inspection areas before inspection. This is not only complex in structure, but also wastes a lot of time in the moving and alignment process, which greatly affects the inspection efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an optical lens appearance defect detection device with a simple structure and reasonable design in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions: An optical lens appearance defect detection device includes a support assembly, on which a feeding device is mounted. A first unloading slide plate is mounted at the discharge end of the feeding device. A mounting base is fixedly connected to the support assembly below the first unloading slide plate. Support rollers are rotatably connected to both ends of the mounting base. A common belt ring is driven to the two support rollers. Multiple positioning grooves are formed on the outer wall of the belt ring. A third motor for driving the belt ring to rotate is mounted on the mounting base. End vision inspection structures are mounted on the support assemblies on both sides of the belt ring. A guide plate with guide grooves on its upper surface is provided at the end of the mounting base away from the feeding device. A pushing device is mounted on the support assembly at one end of the guide plate. Two drive rollers are rotatably connected to the support assembly at the other end of the guide plate via a fixed bracket. The two drive rollers are connected by a synchronous pulley and a synchronous belt drive. A fourth motor is mounted on the fixed bracket. A peripheral vision inspection structure is mounted on the support assembly on one side of the drive roller. A discharge structure is mounted on the support assembly at the discharge end of the drive roller. A controller is also mounted on the support assembly.

[0006] As a further optimization of the present invention, the support assembly includes a support box, a door opening on one side of the support box, a door hinged to the door opening, casters installed at the bottom of the support box, and a testing platform fixedly installed at the top of the support box.

[0007] As a further optimization of the present invention, the feeding device includes a transmission bracket fixedly installed on the detection table, transmission rollers rotatably connected to both ends of the transmission bracket, the same feeding conveyor belt being sleeved on the two transmission rollers, a first motor being installed on the transmission bracket, side plates being fixedly connected to the transmission brackets on both sides of the feeding conveyor belt, screws being screwed onto the side plates, and a guide plate being rotatably connected to the end of the screw located above the feeding conveyor belt.

[0008] As a further optimization of the present invention, a baffle is fixedly connected to the transmission bracket below the discharge end of the feeding conveyor belt, and a first discharge slide is provided between the baffle and the discharge end of the feeding conveyor belt. A notch is opened at the bottom end of the first discharge slide. A second motor is fixedly installed on the side of the baffle away from the feeding conveyor belt. The output end of the second motor passes through the baffle and is rotatably connected to the baffle. A lever is fixedly connected to the output end of the second motor.

[0009] As a further optimization of the present invention, the bottom of the guide plate is fixed to the upper surface of the detection table via a support base, and a connecting plate is fixedly connected to the side of the guide plate near the belt ring. A second feeding slide plate that is inclined is fixedly installed on the connecting plate.

[0010] As a further optimization of the present invention, the end vision detection structure includes a vertical adjustment frame disposed on both sides of the belt ring, a horizontal adjustment frame slidably connected to the vertical adjustment frame, a slider slidably connected to the horizontal adjustment frame, a first vision defect detection camera mounted on the slider, and a first supplementary light fixedly mounted on the first vision defect detection camera.

[0011] As a further optimization of the present invention, the pushing device includes a fixed base fixedly installed on the detection table, a pushing cylinder installed on the upper surface of the fixed base, an end plate with its bottom end fixedly connected to the fixed base slidably sleeved on the piston rod of the pushing cylinder, a spring fixedly connected to the end plate, a sleeve sleeved on the piston rod fixedly connected to the other end of the spring, and a pushing plate with a diameter larger than the inner diameter of the sleeve fixedly connected to the end of the piston rod.

[0012] As a further optimization of the present invention, two side brackets are fixedly connected to the detection platform on one side of the drive roller, and the peripheral visual inspection structure includes a second visual defect detection camera fixedly installed on one of the side brackets, and a second supplementary light is fixedly installed on the second visual defect detection camera.

[0013] As a further optimization of the present invention, a second jet nozzle is installed on another side bracket, a gantry air hood is fixedly installed on the mounting seat at one end of the belt ring, and a first jet nozzle is installed on both side walls of the gantry air hood. Both the second jet nozzle and the first jet nozzle are connected to an external air pump through pipes.

[0014] The beneficial effects of this invention are as follows: 1. By coordinating the structure of belt ring, first vision defect detection camera, pusher cylinder, guide plate and drive roller, the optical lens is accurately positioned in the positioning groove on the belt ring. The first vision defect detection camera on both sides detects defects at the end of the optical lens. Then, the pusher cylinder pushes the optical lens onto the drive roller. The rotation of the drive roller drives the optical lens to rotate slowly. In conjunction with the second vision defect detection camera, the periphery of the optical lens is detected. There is no need to use a robotic arm for handling and alignment, which greatly improves the detection efficiency.

[0015] 2. By setting up a gantry air hood, a first air nozzle, and a second air nozzle, high-speed airflow is ejected through the second air nozzle and the first air nozzle before the optical lens is inspected for end appearance defects and peripheral appearance defects. This blows away the dust and impurities attached to the optical lens, avoiding false detections caused by dust and impurities blocking the lens and greatly improving the inspection accuracy.

[0016] 3. A first electric telescopic rod and a second electric telescopic rod are respectively installed above the detection table on the side of the belt ring and the discharge end of the drive roller. Both the first electric telescopic rod and the second electric telescopic rod are connected to the controller. When an appearance defect is detected in the optical lens, the defective optical lens can be removed by the first electric telescopic rod and the second electric telescopic rod. Due to the different removal positions, optical lenses with defects in different positions can be accurately classified, which is beneficial for users to carry out subsequent processing of defective optical lenses. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one side of the overall structure of the present invention; Figure 2 This is a schematic diagram of the other side of the overall structure of the present invention; Figure 3 This is a schematic diagram of the installation structure of the feeding conveyor belt and guide plate of the present invention; Figure 4 This is a schematic diagram of the installation position of the transmission roller of the present invention; Figure 5 This is a schematic diagram of the connection structure of the gantry air cover, mounting base and belt ring of the present invention; Figure 6 This is a schematic diagram of the connection of the first visual defect detection camera of the present invention; Figure 7This is a schematic diagram showing the positional distribution of the second feeding slide, guide plate, and pushing cylinder of the present invention; Figure 8 This is a schematic diagram of the connection structure of the push plate and sleeve of the present invention; Figure 9 This is a schematic diagram showing the installation position of the drive roller and the side support of the present invention; Figure 10 This is a schematic diagram of the transmission structure of the fourth motor and drive roller of the present invention.

[0018] In the diagram: 101. Support box; 102. Box door; 103. Casters; 104. Inspection table; 201. Conveyor bracket; 202. Conveyor roller; 203. Feeding conveyor belt; 204. First motor; 205. Side plate; 206. Screw; 207. Guide plate; 301. Baffle; 302. First unloading slide plate; 303. Notch; 304. Second motor; 305. Pulley; 401. Mounting base; 402. Support roller; 403. Belt ring; 404. Positioning groove; 405. Third motor; 406. Connecting plate; 407. Second unloading slide plate; 501. Vertical adjustment frame; 502. Horizontal adjustment frame; 503. Slider; 504. 505. First visual defect detection camera; 601. First supplementary light; 602. Support base; 603. Guide plate; 604. Guide groove; 605. Fixed base; 606. Pushing cylinder; 607. End plate; 608. Spring; 609. Sleeve; 701. Push plate; 702. Fixed bracket; 703. Drive roller; 704. Synchronous belt; 705. Fourth motor; 706. Discharge structure; 707. Side bracket; 708. Second visual defect detection camera; 801. Second supplementary light; 802. Gantry air hood; 803. First air nozzle; 901. Support; 902. First electric telescopic rod; 903. Second electric telescopic rod. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example like Figure 1 - Figure 2 As shown, an optical lens appearance defect detection device includes a support box 101. A door opening is provided on one side of the support box 101, and a door 102 is hinged to the door opening. A detection platform 104 is fixedly installed on the top of the support box 101. The detection platform 104 can be supported to a suitable height by the support box 101, and at the same time, the user can store the inspection tools through the support box 101 for user convenience. The bottom of the support box 101 is equipped with casters 103. The casters 103 have a self-locking function. The casters 103 not only facilitate the movement of the whole device, but also provide stable support for the whole device after locking the casters 103. A controller is installed on the support housing 101. The controller is a programmable logic controller (PLC) used to control the entire device. It does not require manual operation by the user, which is not only convenient to use, but also greatly improves the detection efficiency.

[0021] like Figure 3 - Figure 4 As shown, a transmission bracket 201 is fixedly installed on the testing table 104. Transmission rollers 202 are rotatably connected to both ends of the transmission bracket 201. The same feeding conveyor belt 203 is sleeved on the two transmission rollers 202. A first motor 204 is installed on the transmission bracket 201. The output end of the first motor 204 is fixedly connected to the end of one of the transmission rollers 202, which is used to drive the transmission roller 202 to rotate, thereby driving the feeding conveyor belt 203 to rotate and feeding the optical lens to be tested. Side plates 205 are fixedly connected to the transmission brackets 201 on both sides of the feeding conveyor belt 203. A screw 206 is threaded onto the side plate 205. A guide plate 207 is rotatably connected to the end of the screw 206 located above the feeding conveyor belt 203. The guide plate 207 is used to guide the optical lens conveyed on the feeding conveyor belt 203 to prevent the optical lens from shifting during transmission. The screw 206 allows the user to adjust the distance between the two guide plates 207 by rotating the screw 206 to accommodate optical lenses of different sizes.

[0022] like Figure 1 , Figure 3 and Figure 5As shown, a baffle 301 is fixedly connected to the transmission bracket 201 below the discharge end of the feeding conveyor belt 203. A first discharge slide plate 302 is provided between the baffle 301 and the discharge end of the feeding conveyor belt 203. A mounting base 401 is fixedly connected to the detection table 104 below the first discharge slide plate 302. Support rollers 402 are rotatably connected to both ends of the mounting base 401. The same belt ring 403 is drivenly connected to the two support rollers 402. Multiple positioning grooves 404 are opened on the outer wall of the belt ring 403. A drive belt ring 403 is installed on the mounting base 401. The third motor 405 rotates. The second motor 304 is fixedly installed on the side of the baffle 301 away from the feeding conveyor belt 203. The output end of the second motor 304 passes through the baffle 301 and is rotatably connected to the baffle 301. A lever 305 is fixedly connected to the output end of the second motor 304. When the optical lens is conveyed along the feeding conveyor belt 203 to the top of the first unloading slide plate 302, it will be blocked by the baffle 301. At this time, the second motor 304 starts, drives the lever 305 to rotate, and pushes the optical lens to slide down along the first unloading slide plate 302 to the top of the belt ring 403. The bottom end of the first unloading slide plate 302 has a notch 303. When the optical lens falls on the belt ring 403, it is blocked by the first unloading slide plate 302 and cannot slide off the bottom end of the first unloading slide plate 302. When the positioning groove 404 on the outer surface of the belt ring 403 rotates to the area below the optical lens, the optical lens falls into the positioning groove 404 under its own gravity. At this time, the top height of the optical lens is reduced, and it can be discharged through the notch 303 at the bottom end of the first unloading slide plate 302 and rotate with the belt ring 403 to achieve accurate positioning of the optical lens.

[0023] like Figure 2 and Figure 6 As shown, vertical adjustment frames 501 are fixedly installed on the detection tables 104 on both sides of the belt ring 403. The two vertical adjustment frames 501 are symmetrically staggered. A horizontal adjustment frame 502 perpendicular to the vertical adjustment frame 501 is slidably connected to the vertical adjustment frame 501. A slider 503 is slidably connected to the horizontal adjustment frame 502. A first visual defect detection camera 504 is installed on the slider 503. When the optical lens rotates with the belt ring 403 to be aligned with the first visual defect detection camera 504, visual defects can be detected at both ends of the optical lens by the two first visual defect detection cameras 504 respectively.

[0024] like Figure 7As shown, the mounting base 401 is provided with a guide plate 602 with a guide groove 603 on its upper surface at one end away from the feeding conveyor belt 203. The bottom of the guide plate 602 is fixed to the upper surface of the detection table 104 through the support base 601. A connecting plate 406 is fixedly connected to the side of the guide plate 602 near the belt ring 403. A second unloading slide plate 407 is fixedly installed on the connecting plate 406 and is inclined. When the optical lens finishes detection and rotates with the belt ring 403 to the top position of the second unloading slide plate 407, it can slide down the second unloading slide plate 407 into the guide groove 603 on the guide plate 602.

[0025] like Figure 8 As shown, a fixed seat 604 is installed on the detection table 104 at one end of the guide plate 602. A pusher cylinder 605 is installed on the upper surface of the fixed seat 604. A piston rod is installed on the output end of the pusher cylinder 605. When the optical lens falls on the guide plate 602, the piston rod can be extended by the pusher cylinder 605, thereby pushing the optical lens to move along the guide groove 603 opened on the guide plate 602. The piston rod of the pusher cylinder 605 is slidably fitted with an end plate 606 whose bottom end is fixedly connected to the fixed seat 604. A spring 607 is fixedly connected to the end plate 606. The other end of the spring 607 is fixedly connected to a sleeve 608 fitted on the piston rod. A pusher plate 609 with a diameter larger than the inner diameter of the sleeve 608 is fixedly connected to the end of the piston rod. When the piston rod is in a retracted state, the spring 607 is in a compressed state. When the piston rod extends and pushes the material through the pusher plate 609, the spring 607 pushes the sleeve 608 to move below the second unloading slide plate 407 under its own elastic force, blocking the bottom end of the second unloading slide plate 407. This prevents the optical lens from falling along the second unloading slide plate 407 during the pushing process and failing to fall accurately into the guide groove 603. When the piston rod retracts and resets, the pusher plate 609 can drive the sleeve 608 to reset, releasing the blockage at the bottom end of the second unloading slide plate 407 and realizing the repeated pushing process of the optical lens.

[0026] like Figure 9 and Figure 10 As shown, two drive rollers 702 are rotatably connected to the detection table 104 at the end of the guide plate 602 away from the pusher cylinder 605 via a fixed bracket 701. The two drive rollers 702 are connected by a synchronous pulley and a synchronous belt 703. A fourth motor 704 is installed on the fixed bracket 701. The output end of the fourth motor 704 rotates through the fixed bracket 701 and is fixedly connected to the end of one of the drive rollers 702. When the pusher cylinder 605 pushes the optical lens between the two drive rollers 702, the controller controls the fourth motor 704 to start, which, together with the synchronous pulley and the synchronous drive 703, drives the two drive rollers 702 to rotate in the same direction, so that the optical lens rotates slowly under the action of friction. Two side brackets 706 are fixedly connected to the inspection table 104 on one side of the drive roller 702. A second visual defect detection camera 707 is fixedly installed on the side bracket 706 near the discharge end of the drive roller 702. The second visual defect detection camera 707 performs visual inspection on the periphery of the slowly rotating optical lens on the drive roller 702.

[0027] like Figure 6 and Figure 10 As shown, the first visual defect detection camera 504 and the second visual defect detection camera 707 are respectively equipped with a first supplementary light 505 and a second supplementary light 708 facing the optical lens, which are used to provide supplementary lighting during the detection process to avoid the accuracy of the detection results being affected by shadows.

[0028] like Figure 10 As shown, a discharge structure 705 is installed on the inspection table 104 at the discharge end of the drive roller 702. The discharge structure 705 includes a support side plate installed on the inspection table 104. Both ends of the support side plate are rotatably connected to conveyor rollers. A discharge conveyor belt is driven to the two conveyor rollers. A feeding motor for driving the conveyor rollers to rotate is installed on the support side plate. After the inspection is completed, the pusher cylinder 605 can push the optical lens onto the discharge conveyor belt. The qualified optical lens is transported to the appropriate position by the discharge conveyor belt.

[0029] like Figure 5 , Figure 9 and Figure 10 As shown, a second air nozzle 803 is installed on another side bracket 706, and a gantry air hood 801 is fixedly installed on the mounting base 401 at one end of the belt ring 403. A first air nozzle 802 is installed on both side walls of the gantry air hood 801. Both the second air nozzle 803 and the first air nozzle 802 are connected to an external air pump through pipes. The first air nozzle 802 and the second air nozzle 803 are set up to spray high-speed airflow before the optical lens performs end appearance defect detection and peripheral appearance defect detection, respectively. The airflow is used to blow away the dust and impurities attached to the optical lens, preventing false detection caused by dust and impurities blocking the lens.

[0030] like Figure 6 , Figure 9 and Figure 10 As shown, a first electric telescopic rod 902 is installed on the vertical adjustment frame 501 on one side of the discharge end of the belt ring 403 via a support 901, and a second electric telescopic rod 903 is installed on the detection table 104 on one side of the drive roller 702. Both the first electric telescopic rod 902 and the second electric telescopic rod 903 are electrically connected to the controller. When a defect is detected in the optical lens, the controller can control the first electric telescopic rod 902 and the second electric telescopic rod 903 to extend and remove the defective optical lens.

[0031] It should be noted that, in use, this optical lens appearance defect detection device first rotates the screw 206 to adjust the two guide plates 207 to a suitable distance, then places the optical lens to be inspected on the feeding conveyor belt 203, and starts the first motor 204 to drive the feeding conveyor belt 203 to rotate, conveying the optical lens to the baffle 301 position. At this time, the controller controls the second motor 304 to start and drive the turntable 305 to rotate, pushing the optical lens down along the first unloading slide plate 302 onto the belt ring 403. Because the bottom end of the first unloading slide plate 302 has a notch 303, the optical lens falls... After being placed on the belt ring 403, the optical lens is blocked by the first unloading slide plate 302 and cannot slide off the bottom of the first unloading slide plate 302. When the positioning groove 404 on the outer surface of the belt ring 403 rotates to the area below the optical lens, the optical lens falls into the positioning groove 404 under its own gravity. At this time, the top height of the optical lens decreases, and it can be discharged through the notch 303 at the bottom of the first unloading slide plate 302 and rotate with the belt ring 403. During the rotation, the first visual defect detection cameras 504 set on both sides of the belt ring 403 perform visual defect detection on both ends of the optical lens respectively.

[0032] After the optical lens tip inspection is completed, the optical lens continues to rotate with the belt ring 403. When the optical lens rotates with the belt ring 403 to the top position of the second unloading slide plate 407, it can slide down the second unloading slide plate 407 into the guide groove 603 opened on the guide plate 602. At this time, the controller activates the pusher cylinder 605 to push the piston rod to extend, thereby pushing the optical lens to move along the guide groove 603 opened on the guide plate 602, pushing the optical lens between the two drive rollers 702. The fourth motor 704 starts, cooperating with the synchronous pulley and synchronous belt 703 to drive the two drive rollers 702 to rotate in the same direction, so that the optical lens... The optical lens rotates slowly under friction. A second visual defect detection camera 707 for inspecting the periphery of the optical lens is fixedly installed on the side bracket 706 on one side of the drive roller 702. In conjunction with the rotation of the optical lens, visual inspection of the periphery of the optical lens is achieved. After the inspection is completed, the pusher cylinder 605 continues to push the optical lens to move, pushing the inspected optical lens onto the discharge conveyor belt. The discharge conveyor belt then transports the qualified optical lens to a suitable position to complete the inspection of the optical lens. There is no need to use a robotic arm to handle and align the optical lens, which greatly improves the inspection efficiency.

[0033] A second air nozzle 803 is installed on the side bracket 706 located on the feeding end of the drive roller 702. A gantry air hood 801 is fixedly installed on the mounting base 401 at one end of the belt ring 403. A first air nozzle 802 is installed on both side walls of the gantry air hood 801. Both the second air nozzle 803 and the first air nozzle 802 are connected to an external air pump through pipes. Before the optical lens is inspected for end appearance defects and peripheral appearance defects, a high-speed airflow can be ejected through the second air nozzle 803 and the first air nozzle 802 to blow away the dust and impurities attached to the optical lens, preventing false detections caused by dust and impurities blocking the lens and greatly improving the inspection accuracy.

[0034] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An optical lens appearance defect detection apparatus comprising a support assembly, characterized in that: A feeding device is installed on the support assembly. A first unloading slide plate (302) is installed at the discharge end of the feeding device. A mounting base (401) is fixedly connected to the support assembly below the first unloading slide plate (302). Support rollers (402) are rotatably connected to both ends of the mounting base (401). The same belt ring (403) is drivenly connected to the two support rollers (402). Multiple positioning grooves (404) are opened on the outer wall of the belt ring (403). A third motor (405) for driving the belt ring (403) to rotate is installed on the mounting base (401). End vision inspection structures are installed on the support assemblies on both sides of the belt ring (403). The mounting base (401) is away from the feeding device. One end of the device is provided with a guide plate (602) with a guide groove (603) on its upper surface. A pushing device is installed on the support component at one end of the guide plate (602). Two drive rollers (702) are rotatably connected to the support component at the other end of the guide plate (602) through a fixed bracket (701). The two drive rollers (702) are connected by a synchronous pulley and a synchronous belt (703). A fourth motor (704) is installed on the fixed bracket (701). A peripheral vision inspection structure is installed on the support component on one side of the drive roller (702). A discharge structure (705) is installed on the support component at the discharge end of the drive roller (702). A controller is also installed on the support component. 2.The optical lens cosmetic defect detection device of claim 1, wherein: The support assembly includes a support box (101), a door opening is provided on one side of the support box (101), a box door (102) is hinged to the door opening, casters (103) are installed at the bottom of the support box (101), and a testing platform (104) is fixedly installed at the top of the support box (101). 3.The optical lens appearance defect detection device according to claim 2, characterized in that: The feeding device includes a transmission bracket (201) fixedly installed on the detection table (104). Transmission rollers (202) are rotatably connected to both ends of the transmission bracket (201). The same feeding conveyor belt (203) is sleeved on the two transmission rollers (202). A first motor (204) is installed on the transmission bracket (201). Side plates (205) are fixedly connected to the transmission brackets (201) on both sides of the feeding conveyor belt (203). A screw (206) is screwed onto the side plate (205). A guide plate (207) is rotatably connected to one end of the screw (206) located above the feeding conveyor belt (203).

4. The optical lens appearance defect detection device according to claim 3, characterized in that: A baffle (301) is fixedly connected to the transmission bracket (201) below the discharge end of the feeding conveyor belt (203). A first discharge slide plate (302) is provided between the baffle (301) and the discharge end of the feeding conveyor belt (203). A notch (303) is opened at the bottom end of the first discharge slide plate (302). A second motor (304) is fixedly installed on the side of the baffle (301) away from the feeding conveyor belt (203). The output end of the second motor (304) passes through the baffle (301) and is rotatably connected to the baffle (301). A lever plate (305) is fixedly connected to the output end of the second motor (304).

5. The optical lens appearance defect detection device according to claim 2, characterized in that: The bottom of the guide plate (602) is fixed to the upper surface of the detection table (104) via the support base (601). A connecting plate (406) is fixedly connected to the side of the guide plate (602) near the belt ring (403). A second feeding slide plate (407) with an inclined setting is fixedly installed on the connecting plate (406).

6. The optical lens appearance defect detection device according to claim 2, characterized in that: The end vision detection structure includes a vertical adjustment frame (501) set on both sides of the belt ring (403), a horizontal adjustment frame (502) slidably connected to the vertical adjustment frame (501), a slider (503) slidably connected to the horizontal adjustment frame (502), a first vision defect detection camera (504) installed on the slider (503), and a first supplementary light (505) fixedly installed on the first vision defect detection camera (504).

7. The optical lens appearance defect detection device according to claim 2, characterized in that: The feeding device includes a fixed seat (604) fixedly installed on the testing table (104), a feeding cylinder (605) is installed on the upper surface of the fixed seat (604), an end plate (606) with its bottom end fixedly connected to the fixed seat (604) is slidably sleeved on the piston rod of the feeding cylinder (605), a spring (607) is fixedly connected on the end plate (606), a sleeve (608) sleeved on the piston rod is fixedly connected to the other end of the spring (607), and a pusher plate (609) with a diameter larger than the inner diameter of the sleeve (608) is fixedly connected to the end of the piston rod.

8. The optical lens appearance defect detection device according to claim 2, characterized in that: Two side brackets (706) are fixedly connected to the detection table (104) on one side of the drive roller (702). The peripheral visual inspection structure includes a second visual defect detection camera (707) fixedly installed on one of the side brackets (706). A second supplementary light (708) is fixedly installed on the second visual defect detection camera (707).

9. The optical lens appearance defect detection device according to claim 8, characterized in that: A second jet nozzle (803) is installed on another side bracket (706), and a gantry air hood (801) is fixedly installed on the mounting seat (401) at one end of the belt ring (403). A first jet nozzle (802) is installed on both side walls of the gantry air hood (801). The second jet nozzle (803) and the first jet nozzle (802) are both connected to an external air pump through pipes.

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