A visual analysis-based appearance defect detection device

Abstract

This utility model provides a visual analysis-based appearance defect detection device, including a conveyor belt, a lifting support structure disposed on top of the conveyor belt, and an appearance defect detection structure disposed on the lifting support structure. A CCD vision inspection instrument (II) inspects the top and side walls of an object, while a rotating CCD vision inspection instrument (II) inspects all four sides of the object, facilitating effective appearance inspection. A motor (I) rotates the CCD vision inspection instrument around a rotating rod (II), allowing for easy adjustment of the inspection angle as needed. A motor (II) drives a support plate to rise and fall, which in turn moves the appearance defect detection structure up and down, allowing for easy adjustment of the detection height of the appearance defect detection structure, making the overall appearance defect detection device highly flexible in use.

Description

Technical Field

[0001] This utility model relates to the field of appearance defect detection technology, and in particular to an appearance defect detection device based on visual analysis. Background Technology

[0002] Appearance defect detection refers to the technical means of automatically assessing the quality of product surfaces using machine vision systems (including image acquisition equipment and algorithms). Its core function is to identify microscopic defects that are difficult to consistently capture with the naked eye, including but not limited to physical defects such as spots, dents, scratches, cracks, stains, foreign matter adhesion, and geometric deformations.

[0003] In a current Chinese utility model patent application, CN221174432U discloses a defect identification and detection device for mobile phone cases. The device includes a frame on which a PLC controller is mounted. A roller conveyor, a sorting mechanism, and a CCD vision inspection mechanism are mounted on the frame's platform. All three are electrically connected to the PLC controller, with the sorting mechanism located within the roller conveyor. This defect identification and detection device for mobile phone cases is based on a CCD machine vision inspection system. It utilizes a high-resolution CCD camera to acquire and analyze object images, then employs image processing algorithms for defect detection and other operations, ultimately determining product quality. When a defective product is detected, the PLC-controlled sorting mechanism removes the defective product via a return chute. This device can quickly and accurately complete complex inspection tasks, reducing manpower consumption and improving inspection efficiency and accuracy.

[0004] Referring to the aforementioned mobile phone case defect identification and detection device, the position of the CCD vision inspection mechanism on this device is fixed. This makes it difficult for the CCD vision inspection instrument to comprehensively inspect the appearance of all exposed sidewalls of the item during appearance inspection. Furthermore, the CCD vision inspection mechanism cannot be easily adjusted in height or inspection angle as needed, making the overall use of the detection device inflexible. Therefore, how to better inspect the appearance of items and how to better adjust the height and inspection angle as needed are important problems that need to be solved in the design of appearance defect detection equipment based on vision analysis. Utility Model Content

[0005] To address the issues of insufficient comprehensive inspection of the appearance of exposed sidewalls of an item and the lack of flexibility in the overall use of the inspection device, this invention provides a visual analysis-based appearance defect inspection device.

[0006] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0007] This utility model provides a visual analysis-based appearance defect detection device, including a conveyor belt, and further comprising:

[0008] A lifting support structure is provided at the top of the transmission belt;

[0009] An appearance defect detection structure is installed on the lifting support structure;

[0010] Rotating structure one, wherein the rotating structure one is disposed above the lifting support structure;

[0011] The second rotating structure is disposed on one side of the appearance defect detection structure, and the second rotating structure drives the appearance defect detection structure to rotate for detection.

[0012] Preferably, four support legs are fixedly connected to the bottom sidewall of the conveyor belt.

[0013] In this technical solution, the support feet support the conveyor belt.

[0014] Preferably, the lifting support structure includes a threaded sleeve, a threaded rod, a support plate, a bevel gear, and a connecting block. Two threaded sleeves are fixedly connected to the top side wall of the conveyor belt. Two threaded rods are internally threaded to the two threaded sleeves. Two connecting blocks are fixedly connected to the top of the two threaded rods. The two connecting blocks are rotatably connected to the side wall of the support plate. Two bevel gears are fixedly connected to the top of the two connecting blocks.

[0015] In this technical solution, the rotation of the bevel gear drives the connecting block to rotate, the connecting block drives the threaded rod to rotate, the threaded rod rotates inside the threaded sleeve and moves, and the movement of the threaded rod drives the support plate to rise and fall.

[0016] Preferably, a fixed housing is fixedly connected to the top side wall of the support plate.

[0017] In this technical solution, the fixed housing provides support and shields the rotating structure.

[0018] Preferably, the rotating structure includes a rotating rod, a bevel gear, and a motor. The motor is fixedly connected to the inner wall of the fixed housing. The rotating end of the motor is fixedly connected to one end of the rotating rod, and the other end of the rotating rod is rotatably connected to the inner wall of the other side of the fixed housing. Two bevel gears are fixedly connected to the side wall of the rotating rod.

[0019] In this technical solution, the rotation of motor two drives the rotation of rotating rod two, and rotating rod two drives the rotation of bevel gear two.

[0020] Preferably, the second bevel gear meshes with the first bevel gear.

[0021] In this technical solution, bevel gear two drives bevel gear one to rotate.

[0022] Preferably, the appearance defect detection structure includes a support block, a connecting rod, a connecting plate, and a second CCD vision inspection instrument. The support block is fixedly connected to the center of the bottom side wall of the support plate. The connecting rod is fixedly connected to the bottom side wall of the support block. The connecting plate is fixedly connected to the bottom of the connecting rod. The second CCD vision inspection instrument is fixedly connected to the bottom side wall of the connecting plate.

[0023] In this technical solution, when the item is conveyed to the CCD vision inspection instrument 2, the CCD vision inspection instrument 2 inspects the top sidewall of the item.

[0024] Preferably, the appearance defect detection structure includes a rotating plate, a connecting arc rod, a connecting housing, a rotating block, a CCD vision inspection instrument, a motor, and a rotating rod. The rotating plate is rotatably connected to the side wall of the support block. Two connecting arc rods are fixedly connected to the bottom side wall of the rotating plate. The other ends of the two connecting arc rods are fixedly connected to two connecting housings. A rotating rod is rotatably connected between the two connecting housings. A rotating block is fixedly connected to the side wall of the rotating rod. The rotating block is rotatably connected to the connecting housing. A CCD vision inspection instrument is fixedly connected to the side wall of the rotating block. The motor is fixedly connected to the side wall of the connecting housing. The rotating end of the motor is fixedly connected to one end of the rotating rod.

[0025] In this technical solution, the rotating plate rotates around the support block, causing the connecting arc rod to rotate. The connecting arc rod causes the connecting housing to rotate, and the connecting housing causes the CCD vision inspection instrument one to rotate around the support block two. The rotating CCD vision inspection instrument one inspects the four sides of the object.

[0026] Preferably, the rotating plate has rotating tooth grooves on its side wall.

[0027] Preferably, the second rotating structure includes a third motor, a third rotating rod, and a third rotating gear. The third motor is fixedly connected to the top side wall of the support plate. The rotating end of the third motor is fixedly connected to the third rotating rod. The bottom end of the third rotating rod extends downward through the side wall of the support plate. The bottom of the third rotating rod is fixedly connected to the third rotating gear. The third rotating gear and the rotating tooth groove mesh with each other.

[0028] In this technical solution, the motor rotates three times, which drives the rotating rod to rotate three times. The rotating rod drives the rotating gear to rotate, and the rotating gear rotates in the rotating tooth groove, which drives the rotating plate to rotate.

[0029] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0030] The positive and progressive effects of this utility model are as follows:

[0031] 1. The top and side walls of the object are inspected by the CCD vision inspection instrument 2. The motor 3 rotates, which drives the rotating gear to rotate. The rotating gear drives the rotating plate to rotate. The rotating plate drives the CCD vision inspection instrument 1 to rotate around the support block 2. The rotating CCD vision inspection instrument 1 inspects the four sides of the object, which facilitates better inspection of the object's appearance.

[0032] 2. The rotation of the motor drives the rotation rod to rotate, which in turn drives the rotation block to rotate. The rotation block then drives the CCD vision inspection instrument to rotate around the rotation rod, allowing for better adjustment of the detection angle of the CCD vision inspection instrument as needed.

[0033] 3. The rotation of motor two drives the rotation of bevel gear two, which in turn drives the rotation of bevel gear one, which in turn drives the rotation of threaded rod. The rotation of threaded rod within threaded sleeve causes movement, which in turn causes the support plate to rise and fall. The support plate, in turn, causes the appearance defect detection structure to rise and fall, allowing for better adjustment of the detection height of the appearance defect detection structure as needed, making the overall use of the appearance defect detection equipment more flexible. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0035] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0036] Figure 3 This is a side view of the internal structure of the present invention.

[0037] Explanation of reference numerals in the attached figures

[0038] 1. Conveyor belt; 2. Support legs; 3. Lifting support structure; 301. Threaded sleeve; 302. Threaded rod; 303. Support plate; 304. Bevel gear one; 305. Connecting block; 4. Fixed housing; 5. Appearance defect detection structure; 501. Rotating plate; 502. Connecting arc rod; 503. Connecting housing; 504. Rotating block; 505. CCD vision inspection instrument one; 506. Motor one; 507. Rotating rod one; 511. Rotating tooth groove; 521. Support block; 522. Connecting rod; 523. Connecting plate; 524. CCD vision inspection instrument two; 6. Rotating structure one; 601. Rotating rod two; 602. Bevel gear two; 603. Motor two; 7. Rotating structure two; 701. Motor three; 702. Rotating rod three; 703. Rotating gear. Detailed Implementation

[0039] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0040] like Figure 1-3 As shown, a visual analysis-based appearance defect detection device includes a conveyor belt 1, and further includes:

[0041] A lifting support structure 3 is provided at the top of the transmission belt;

[0042] Appearance defect detection structure 5, wherein the appearance defect detection structure 5 is installed on the lifting support structure 3;

[0043] Rotating structure 6, which is disposed above the lifting support structure 3;

[0044] Rotating structure 2 7 is disposed on one side of appearance defect detection structure 5, and rotating structure 2 7 drives appearance defect detection structure 5 to rotate for detection.

[0045] Four support legs 2 are fixedly connected to the bottom side wall of the conveyor belt 1.

[0046] Support leg 2 supports conveyor belt 1.

[0047] The lifting support structure 3 includes a threaded sleeve 301, a threaded rod 302, a support plate 303, a bevel gear 304, and a connecting block 305. Two threaded sleeves 301 are fixedly connected to the top side wall of the conveyor belt 1. Two threaded rods 302 are internally threaded to the two threaded sleeves 301. Two connecting blocks 305 are fixedly connected to the top of the two threaded rods 302. The two connecting blocks 305 are rotatably connected to the side wall of the support plate 303. Two bevel gears 304 are fixedly connected to the top of the two connecting blocks 305.

[0048] The rotation of the bevel gear 304 drives the connecting block 305 to rotate, which in turn drives the threaded rod 302 to rotate. The threaded rod 302 moves within the threaded sleeve 301, and this movement causes the support plate 303 to rise and fall.

[0049] The fixed housing 4 is fixedly connected to the top side wall of the support plate 303.

[0050] The fixed housing 4 provides support and shielding for the rotating structure 6.

[0051] The rotating structure 6 includes a rotating rod 601, a bevel gear 602, and a motor 603. The motor 603 is fixedly connected to the inner wall of the fixed housing 4. The rotating end of the motor 603 is fixedly connected to one end of the rotating rod 601. The other end of the rotating rod 601 is rotatably connected to the inner wall of the other side of the fixed housing 4. Two bevel gears 602 are fixedly connected to the side wall of the rotating rod 601.

[0052] The rotation of motor 2603 drives the rotation rod 2601 to rotate, and the rotation rod 2601 drives the bevel gear 2602 to rotate.

[0053] The bevel gear 602 meshes with the bevel gear 304.

[0054] Bevel gear 2 602 drives bevel gear 1 304 to rotate.

[0055] The appearance defect detection structure 5 includes a support block 521, a connecting rod 522, a connecting plate 523, and a CCD vision inspection instrument 524. The support block 521 is fixedly connected to the center of the bottom side wall of the support plate 303. The connecting rod 522 is fixedly connected to the bottom side wall of the support block 521. The bottom of the connecting rod 522 is fixedly connected to the connecting plate 523. The CCD vision inspection instrument 524 is fixedly connected to the bottom side wall of the connecting plate 523.

[0056] When the item is transported to the CCD vision inspection instrument 2524, the CCD vision inspection instrument 2524 inspects the top and side walls of the item.

[0057] The appearance defect detection structure 5 includes a rotating plate 501, a connecting arc rod 502, a connecting housing 503, a rotating block 504, a CCD vision inspection instrument 505, a motor 506, and a rotating rod 507. The rotating plate 501 is rotatably connected to the side wall of the support block 521. Two connecting arc rods 502 are fixedly connected to the bottom side wall of the rotating plate 501. The other ends of the two connecting arc rods 502 are fixedly connected to two connecting housings 503. The rotating rod 507 is rotatably connected between the two connecting housings 503. The rotating block 504 is fixedly connected to the side wall of the rotating rod 507. The rotating block 504 is rotatably connected to the connecting housing 503. The CCD vision inspection instrument 505 is fixedly connected to the side wall of the rotating block 504. The motor 506 is fixedly connected to the side wall of the connecting housing 503. The rotating end of the motor 506 is fixedly connected to one end of the rotating rod.

[0058] The rotating plate 501 rotates around the support block 521, causing the connecting arc rod 502 to rotate. The connecting arc rod 502 causes the connecting housing 503 to rotate. The connecting housing 503 causes the CCD vision inspection instrument 505 to rotate around the support block 521. The rotating CCD vision inspection instrument 505 inspects the four sides of the object.

[0059] Rotating tooth grooves 511 are provided on the side wall of the rotating plate 501.

[0060] The rotating structure 7 includes a motor 701, a rotating rod 702, and a rotating gear 703. The motor 701 is fixedly connected to the top side wall of the support plate 303. The rotating end of the motor 701 is fixedly connected to the rotating rod 702. The bottom end of the rotating rod 702 extends downward through the side wall of the support plate 303. The bottom of the rotating rod 702 is fixedly connected to the rotating gear 703. The rotating gear 703 and the rotating tooth groove 511 mesh with each other.

[0061] The rotation of motor 701 drives the rotation rod 702 to rotate, which in turn drives the rotation gear 703 to rotate. The rotation gear 703 rotates within the rotation groove 511, which in turn drives the rotation plate 501 to rotate.

[0062] In use, all electrical components mentioned in this application are externally connected to a power supply and control switch. The items to be inspected are conveyed via conveyor belt 1. When the items are conveyed to the CCD vision inspection instrument 2 524, the CCD vision inspection instrument 2 524 inspects the top and side walls of the items. Motor 3 701 rotates, driving rotating rod 3 702 to rotate. The rotating rod drives rotating gear 703 to rotate. Rotating gear 703 rotates in rotating tooth groove 511, driving rotating plate 501 to rotate. Rotating plate 501 rotates around support block 521, driving connecting arc rod 502 to rotate. Connecting arc rod 502 drives connecting housing 503 to rotate. Connecting housing 503 drives CCD vision inspection instrument 1 505 to rotate around support block 521. The rotating CCD vision inspection instrument 1 505 inspects the four sides of the object, which facilitates better inspection of the appearance of the items.

[0063] The rotation of motor 506 drives the rotation rod 507 to rotate, the rotation rod 507 drives the rotation block 504 to rotate, and the rotation block 504 drives the CCD vision inspection instrument 505 to rotate around the rotation rod 507, which facilitates the appropriate adjustment of the detection angle of the CCD vision inspection instrument 505 as needed.

[0064] The rotation of motor 603 drives the rotation rod 601 to rotate, which in turn drives the bevel gear 602 to rotate. The bevel gear 602 drives the bevel gear 304 to rotate, which in turn drives the connecting block 305 to rotate. The connecting block 305 drives the threaded rod 302 to rotate. The threaded rod 302 moves within the threaded sleeve 301, and this movement causes the support plate 303 to rise and fall. The support plate 303 then causes the appearance defect detection structure 5 to rise and fall, allowing for better adjustment of the detection height of the appearance defect detection structure 5 as needed.

[0065] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A visual analysis-based appearance defect detection device, comprising a conveyor belt (1), characterized in that, Also includes: A lifting support structure (3) is provided on the top of the transmission belt; Appearance defect detection structure (5), wherein the appearance defect detection structure (5) is installed on the lifting support structure (3); Rotating structure one (6) is disposed above the lifting support structure (3); Rotating structure two (7) is set on one side of the appearance defect detection structure (5), and the rotating structure two (7) drives the appearance defect detection structure (5) to rotate for detection.

2. The visual analysis-based appearance defect detection device as described in claim 1, characterized in that: Four support feet (2) are fixedly connected to the bottom side wall of the conveyor belt (1).

3. The visual analysis-based appearance defect detection device as described in claim 1, characterized in that: The lifting support structure (3) includes a threaded sleeve (301), a threaded rod (302), a support plate (303), a bevel gear (304), and a connecting block (305). Two threaded sleeves (301) are fixedly connected to the top side wall of the conveyor belt (1). Two threaded rods (302) are threadedly connected to the two threaded sleeves (301). Two connecting blocks (305) are fixedly connected to the top of the two threaded rods (302). The two connecting blocks (305) are rotatably connected to the side wall of the support plate (303). Two bevel gears (304) are fixedly connected to the top of the two connecting blocks (305).

4. The appearance defect detection device based on visual analysis as described in claim 3, characterized in that: The fixed housing (4) is fixedly connected to the top side wall of the support plate (303).

5. The appearance defect detection device based on visual analysis as described in claim 1, characterized in that: The rotating structure 1 (6) includes a rotating rod 2 (601), a bevel gear 2 (602) and a motor 2 (603). The motor 2 (603) is fixedly connected to the inner wall of the fixed housing (4). The rotating end of the motor 2 (603) is fixedly connected to one end of the rotating rod 2 (601). The other end of the rotating rod 2 (601) is rotatably connected to the inner wall of the other side of the fixed housing (4). Two bevel gears 2 (602) are fixedly connected to the side wall of the rotating rod 2 (601).

6. The appearance defect detection device based on visual analysis as described in claim 5, characterized in that: The second bevel gear (602) meshes with the first bevel gear (304).

7. The appearance defect detection device based on visual analysis as described in claim 1, characterized in that: The appearance defect detection structure (5) includes a support block (521), a connecting rod (522), a connecting plate (523), and a second CCD vision inspection instrument (524). The support block (521) is fixedly connected to the center of the bottom side wall of the support plate (303). The connecting rod (522) is fixedly connected to the bottom side wall of the support block (521). The bottom of the connecting rod (522) is fixedly connected to the connecting plate (523). The second CCD vision inspection instrument (524) is fixedly connected to the bottom side wall of the connecting plate (523).

8. The appearance defect detection device based on visual analysis as described in claim 7, characterized in that: The appearance defect detection structure (5) includes a rotating plate (501), connecting arc rods (502), connecting housings (503), rotating block (504), a CCD vision inspection instrument (505), a motor (506), and a rotating rod (507). The rotating plate (501) is rotatably connected to the side wall of the support block (521). Two connecting arc rods (502) are fixedly connected to the bottom side wall of the rotating plate (501), and the other ends of the two connecting arc rods (502) are fixedly connected to two connecting housings. (503) A rotating rod (507) is rotatably connected between the two connecting housings (503). A rotating block (504) is fixedly connected to the side wall of the rotating rod (507). The rotating block (504) is rotatably connected to the connecting housing (503). A CCD vision inspection instrument (505) is fixedly connected to the side wall of the rotating block (504). A motor (506) is fixedly connected to the side wall of the connecting housing (503). The rotating end of the motor (506) is fixedly connected to one end of the rotating rod.

9. The appearance defect detection device based on visual analysis as described in claim 8, characterized in that: Rotating tooth grooves (511) are provided on the side wall of the rotating plate (501).

10. The appearance defect detection device based on visual analysis as described in claim 1, characterized in that: The rotating structure two (7) includes a motor three (701), a rotating rod three (702) and a rotating gear (703). The motor three (701) is fixedly connected to the top side wall of the support plate (303). The rotating end of the motor three (701) is fixedly connected to the rotating rod three (702). The bottom end of the rotating rod three (702) extends downward through the side wall of the support plate (303). The bottom of the rotating rod three (702) is fixedly connected to the rotating gear (703). The rotating gear (703) and the rotating tooth groove (511) mesh with each other.

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