A ceramic defect detection device and method based on machine vision
By adopting a ceramic defect detection device based on machine vision in ceramic factories, using separation components, stain cleaning components and fill lights, the problems of high manual inspection costs and high misjudgment rates in ceramic dishes inspection are solved, and automation is achieved. Accurate ceramic dish inspection.
Patent Information
- Application Number
- CN202411404413.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2044-10-10
AI Technical Summary
In ceramic factories, manual inspection costs are high, and the possibility of missing inspection is high. In addition, stains on the inner wall of ceramic dishes are easily misjudged as defects, resulting in poor detection results.
A ceramic defect detection device based on machine vision is designed, including an imaging detector, conveyor rack, partition assembly, stain cleaning assembly and fill light. Through the partition assembly, the stain cleaning assembly cleans the inner wall stains and fills the light. The light fills up to realize automatic detection and reduce the rate of error judgment.
It realizes automatic detection of ceramic dishes, reduces inspection costs, avoids missed inspection, and significantly improves detection accuracy and efficiency.
Smart Images
Figure CN118914242B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of ceramic detection, and in particular to a ceramic defect detection device and method based on machine vision. Background Art
[0002] With the development of society and the improvement of people's living standards, people's pursuit of material things has also increased. Ceramic products with their unique luster and beauty are sought after and loved by more and more people. At the same time, people's quality requirements for ceramic products are also getting higher and higher. Usually, after ceramic products are made, some finished products have scratches, glaze cracks, collapsed edges, missing corners, caves, pits, convex spots and other defects on the surface, and these products often cannot meet people's use requirements, so some methods are needed to screen out these defective products.
[0003] At present, the most common method used by ceramic factories for ceramic bowls and plates is visual inspection, that is, several workers are assigned to perform manual defect inspection on an assembly line. The assembly line generally operates 24 hours a day and requires multiple shifts. The labor cost of manual inspection is high and the possibility of missed inspection is high. During the inspection process, if there are accumulated stains on the inner wall of the ceramic bowls and plates, they will be misjudged as defective products. The probability of misjudgment is high and the actual inspection effect is poor. Summary of the invention
[0004] The present invention discloses a ceramic defect detection device and method based on machine vision, aiming to solve the technical problems of high manpower cost expenditure and high possibility of missed detection in manual detection. During the detection process, if there are accumulated stains on the inner wall of ceramic dishes, they will be misjudged as defective products, with a high probability of misjudgment and poor actual detection effect.
[0005] In order to achieve the above object, the present invention adopts the following technical solutions:
[0006] A ceramic defect detection device based on machine vision comprises an imaging detector, both sides of the outer walls of the imaging detector are fixedly connected with conveying frames, the conveying frames are provided with conveyor belts, the conveyor belts are movably arranged in the imaging detector, the outer wall of the conveying frame is provided with a partition assembly, and the outer wall of the conveying frame is provided with a stain cleaning assembly, the stain cleaning assembly comprises a stepping motor, the stepping motor is fixedly mounted on one side of the outer wall of the conveying frame, an annular guide rail is movably arranged inside the imaging detector, a mounting frame is slidably arranged on the annular guide rail, and a plurality of fill lights distributed in a circular array are arranged inside the mounting frame.
[0007] An imaging detector, a conveyor frame, a conveyor belt, a partition component, a stain cleaning component, a circular guide rail, a mounting frame and a fill light are provided, and a plurality of ceramic dishes are limited by the partition component so that the plurality of ceramic dishes enter the imaging detector at a uniform speed for detection to ensure the detection effect, and the inner wall of the ceramic dishes is cleaned by the stain cleaning component to remove the stains attached to the inner wall to avoid the stains and the like affecting the defect detection effect of the ceramic dishes, thereby greatly reducing the probability of misjudgment, and a variety of movable fill lights are used to fill the light in the imaging detector during detection to avoid the color of the ceramic dishes and the like affecting the judgment of the imaging detector, thereby further ensuring the detection effect, achieving good detection effect, realizing automated detection, reducing detection costs, and preventing missed detection.
[0008] In a preferred embodiment, the separation assembly includes a separation plate, which is rotatably arranged on the upper side of the conveyor belt, and the outer wall of the separation plate is fixedly connected with a plurality of separation rods distributed in a circular array, and the separation rods are rotatably arranged above the conveyor belt, and a connecting column is fixedly connected to the middle of the bottom surface of the separation plate, and a locking plate is fixedly connected to the bottom surface of the connecting column, and a plurality of straight triangular grooves distributed in a circular array are formed on the outer wall of the locking plate; a bracket 1 is fixedly connected to the outer wall of the conveyor frame on the side away from the stepper motor, and a positioning column is fixedly connected to the top surface of the bracket 1, and a steering plate 1 is rotatably arranged on the top of the positioning column, and a locking block is fixedly connected to the end of the steering plate 1 away from the positioning column, and the locking block abuts against the inner wall of the straight triangular groove; the bracket 1 A driving motor 1 is fixedly installed on the top surface of one end near the locking block, and the power output shaft of the driving motor 1 is connected to a rotating disk through a coupling transmission. An eccentric rod is fixedly connected to one end of the top surface of the rotating disk, and a steering plate 2 is rotatably arranged on the surface of the eccentric rod. A movable groove communicating with the inside of the steering plate 1 and the locking block is provided, and sliding rods are fixedly connected to the inner walls of the two ends of the movable groove, and one end of the steering plate 2 away from the eccentric rod is slidably arranged on the surface of the sliding rod, a bracket 2 is fixedly connected to the outer wall of the conveying frame, a fixing frame is fixedly connected to the bottom surface of the steering plate 1, a spring is fixedly connected to the outer wall on the side where the bracket 2 and the fixing frame are close to each other, and a positioning rod is fixedly connected to the outer wall on the side of the fixing frame close to the bracket 2, and the spring is sleeved on the surface of the positioning rod.
[0009] By providing a separation component, the ceramic bowls and plates on the conveyor belt are limited by the separation rod, and the driving motor is started to make the engaging block disengage from the straight triangular groove to continue conveying. After the next straight triangular groove rotates to the side of the engaging block, the engaging block is re-engaged in the next straight triangular groove. In this way, a cycle is realized, multiple ceramic bowls and plates are separated, and the detection speed is adjusted according to the ceramic bowls and plates to ensure the detection effect.
[0010] In a preferred solution, the power output shaft of the stepper motor is connected to a screw rod through a coupling transmission, the surface of the screw rod is threadedly connected to a lifting seat, the outer wall of the conveying frame is fixedly connected to a guide column, the lifting seat is slidably arranged on the surface of the guide column, and the end of the lifting seat away from the guide column is fixedly connected to a connecting frame; the bottom surface of one end of the connecting frame is fixedly connected to a bracket three, the bottom outer wall of the bracket three is fixedly connected to a plurality of brackets four distributed in a circular array, and the outer wall of the bracket three is fixedly installed with a driving motor two, the power output shaft of the driving motor two is connected to a driving gear through a coupling transmission, the bottom surface of the driving gear is fixedly connected to a cleaning brush two, the surface of the driving gear is meshed with a plurality of driven gears distributed in a circular array, the driven gear is rotatably arranged in the bracket four, and the bottom surface of the driven gear is fixedly connected to a cleaning brush 1. The bottom surface of the end of the connecting frame away from the bracket three is fixedly connected to the bracket five, the middle part of the bottom surface of the bracket five is fixedly installed with a driving motor three, and the bottom surfaces of both ends of the bracket five are fixedly connected with outer disks, the power output shaft of the driving motor three is connected to the rotating disk through a coupling transmission, the rotating disk is rotatably arranged on the top inner wall of the outer disk, a fan is fixedly installed on the bottom surface of the outer disk, and a plurality of air inlet holes are provided inside the rotating disk and the outer disk; a plurality of arc grooves distributed in a circular array are provided inside the rotating disk, a plurality of strip grooves corresponding to the arc grooves are provided on the bottom surface of the outer disk, moving rods are slidably provided inside the arc grooves and the strip grooves, a moving frame is fixedly installed on the bottom outer wall of the moving rod, an adsorption cotton cloth is fixedly connected to the end of the moving frame away from the moving rod, and the adsorption cotton cloth is provided at the lower outer side of the fan.
[0011] By providing a stain cleaning component, the stepper motor is started to slide the lifting seat downward, the cleaning brush 1 and the cleaning brush 2 enter the second to last ceramic bowl and dish, the absorption cotton cloth enters the last ceramic bowl and dish, the driving motor 2 is started to make the cleaning brush 1 and the cleaning brush 2 clean the stubborn stains on the inner wall of the bottom surface of the ceramic bowl and dish, the driving motor 3 is started to make the absorption cotton cloth wipe the inner wall of the ceramic bowl and dish and absorb the stains, and when the absorption cotton cloth contacts the side wall of the ceramic bowl and dish, the stepper motor is driven in reverse to clean the attached stains out of the ceramic bowl and dish, thereby achieving the cleaning of the stains on the ceramic bowl and dish.
[0012] In a preferred solution, a driving motor four is fixedly mounted on the outer wall of one side of the mounting frame, a power output shaft of the driving motor four is connected to a lamp holder through a coupling, a plurality of fill lights are fixedly mounted on the outer wall of the lamp holder, a lifting cylinder is fixedly mounted on one end of the top surface of the imaging detector, an output end of the lifting cylinder is fixedly connected to the top surface of the annular guide rail, guide columns are fixedly connected to the four corners of the inner wall of the bottom surface of the imaging detector, and the annular guide rail is slidably arranged on the surface of the plurality of guide columns.
[0013] By providing an annular guide rail, a mounting frame, four driving motors, a lamp holder, a fill light, a lifting cylinder and a guide column, during the detection process, the fill light is used to fill light into the interior of the imaging detector, and the driving motor four is adjusted to illuminate the required fill light to the ceramic dishes. The fill light slides along the surface of the annular guide rail and can move up and down, so that the fill light angle and height of the fill light change, thereby achieving fill light for different positions, and the fill light effect is good.
[0014] A ceramic defect detection method based on machine vision, using a ceramic defect detection device based on machine vision as described above, comprises the following steps:
[0015] Step 1: The ceramic bowls and plates are transported along the conveyor belt to one side of the imaging detector. The ceramic bowls and plates on the conveyor belt are limited by the dividing rod. The driving motor is started to rotate the engaging block and disengage from the straight triangular groove. The ceramic bowls and plates generate thrust on the dividing rod and can continue to be transported. Multiple ceramic bowls and plates are separated and adjusted according to the detection speed of the ceramic bowls and plates to ensure the detection effect.
[0016] Step 2: while limiting the position of the ceramic dishes, start the stepper motor to move the lifting seat downward, the cleaning brush 1 and the cleaning brush 2 are in contact with the bottom surface of the ceramic dishes, and start the driving motor 2 to clean the stubborn stains on the bottom surface of the ceramic dishes;
[0017] Step three, turn on the fan at the same time, the fan will blow the cleaned stubborn stains to the outside of the bottom inner wall of the ceramic dishes, start the drive motor three, the adsorption cotton cloth slides outward along the bottom inner wall of the ceramic dishes, when the adsorption cotton cloth contacts the side wall of the ceramic dishes, the reverse drive stepper motor moves the adsorption cotton cloth with the stains upward, and finally the stains on the inner wall of the ceramic dishes are discharged through its upper opening.
[0018] Step 4: The cleaned ceramic dishes are transported to the interior of the imaging detector. The fill light slides along the annular guide rail, and the annular guide rail slides up and down along the surface of the guide column to fill light in the imaging detector to ensure the quality of the inspection of ceramic dishes until the inspection is completed.
[0019] From the above, it can be seen that the ceramic defect detection device based on machine vision provided by the present invention has the function of removing stains on the inner wall of ceramic dishes before detection, so as to avoid the influence of stains on the defect detection effect of ceramic dishes, which greatly reduces the probability of misjudgment. During detection, fill light is used for fill light, the detection effect is better, the operation is automated, the detection cost is reduced, and there is no technical effect of missed detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the overall structure of a ceramic defect detection device based on machine vision proposed by the present invention.
[0021] Figure 2This is a side structural cross-sectional view of a conveyor frame of a ceramic defect detection device based on machine vision proposed by the present invention.
[0022] Figure 3 This is a structural side view of a separation component of a ceramic defect detection device based on machine vision proposed by the present invention.
[0023] Figure 4 This is a structural side view of a stain cleaning component of a ceramic defect detection device based on machine vision proposed by the present invention.
[0024] Figure 5 A structural side view of a cleaning brush of a ceramic defect detection device based on machine vision proposed by the present invention.
[0025] Figure 6 This is a schematic diagram of the separated structure of the bracket 5 and the cleaning cotton cloth of a ceramic defect detection device based on machine vision proposed by the present invention.
[0026] Figure 7 This is a side view of the structure of the fill light of a ceramic defect detection device based on machine vision proposed by the present invention.
[0027] In the figure: 1, imaging detector; 2, conveyor frame; 3, conveyor belt; 4, partition assembly; 401, partition plate; 402, partition rod; 403, connecting column; 404, locking plate; 405, straight triangular groove; 406, bracket one; 407, positioning column; 408, steering plate one; 409, locking block; 410, driving motor one; 411, rotating disk; 412, eccentric rod; 413, steering plate two; 414, movable groove; 415, sliding rod; 416, bracket two; 417, fixed frame; 418, spring; 419, positioning rod; 5, stain cleaning assembly; 501, stepping motor; 502, screw rod; 503, lifting seat ; 504, guide column; 505, connecting frame; 506, bracket three; 507, bracket four; 508, drive motor two; 509, driving gear; 510, driven gear; 511, cleaning brush one; 512, bracket five; 513, drive motor three; 514, rotating disk; 515, outer disk; 516, fan; 517, air inlet; 518, arc groove; 519, strip groove; 520, moving rod; 521, moving frame; 522, adsorption cotton cloth; 523, cleaning brush two; 6, ring guide rail; 7, mounting frame; 8, drive motor four; 9, lamp holder; 10, fill light; 11, lifting cylinder; 12, guide column. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0029] The present invention discloses a ceramic defect detection device based on machine vision, which is mainly used in scenarios where manual inspection has high labor costs and a high possibility of missed detection. During the inspection process, if there are accumulated stains on the inner wall of ceramic dishes, they will be misjudged as defective products. The probability of misjudgment is high and the actual inspection effect is poor.
[0030] Reference Figure 1-Figure 7 A ceramic defect detection device based on machine vision includes an imaging detector 1, and the outer walls on both sides of the imaging detector 1 are fixedly connected with a conveying frame 2, and a conveying belt 3 is arranged on the conveying frame 2, and the conveying belt 3 is movably arranged in the imaging detector 1, and a partition component 4 is arranged on the outer wall of the conveying frame 2, and a stain cleaning component 5 is arranged on the outer wall of the conveying frame 2, and the stain cleaning component 5 includes a stepping motor 501, and the stepping motor 501 is fixedly installed on one side of the outer wall of the conveying frame 2, and an annular guide rail 6 is movably arranged inside the imaging detector 1, and a mounting frame 7 is slidably arranged on the annular guide rail 6, and a plurality of fill lights 10 distributed in a circular array are arranged inside the mounting frame 7.
[0031] Specifically, ceramic bowls and plates are conveyed along the conveyor belt 3 to one side of the imaging detector 1, and a plurality of ceramic bowls and plates are limited by the partition component 4 so that the plurality of ceramic bowls and plates enter the imaging detector 1 at a uniform speed for detection to ensure the detection effect. In the process of limiting the position of the ceramic bowls and plates by the partition component 4, the inner wall of the ceramic bowls and plates is cleaned by the stain cleaning component 5 to remove the stains attached to the inner wall to avoid the stains and the like affecting the defect detection effect of the ceramic bowls and plates, thereby greatly reducing the probability of misjudgment. During the detection, a variety of movable fill lights 10 are used to fill light in the imaging detector 1 to avoid the color of the ceramic bowls and plates affecting the judgment of the imaging detector 1, thereby further ensuring the detection effect, achieving good detection effect, realizing automated detection, reducing detection costs, and preventing missed detection.
[0032] Reference Figure 1 , Figure 2 and Figure 3In a preferred embodiment, the partition assembly 4 includes a partition plate 401, which is rotatably arranged on the upper side of the conveyor belt 3, and the outer wall of the partition plate 401 is fixedly connected with a plurality of partition rods 402 distributed in a circular array, and the partition rods 402 are rotatably arranged above the conveyor belt 3, and a connecting column 403 is fixedly connected to the middle part of the bottom surface of the partition plate 401, and a clamping plate 404 is fixedly connected to the bottom surface of the connecting column 403, and the outer wall of the clamping plate 404 is provided with a plurality of straight triangular grooves 405 distributed in a circular array; a bracket 406 is fixedly connected to the outer wall of the conveyor frame 2 on the side away from the stepper motor 501, and a positioning column 407 is fixedly connected to the top surface of the bracket 406, and a steering plate 408 is rotatably arranged on the top of the positioning column 407, and a clamping block 409 is fixedly connected to the end of the steering plate 408 away from the positioning column 407, and the clamping block 409 is against the inner wall of the straight triangular groove 405; the bracket 406 is close to the clamping block 4 A driving motor 410 is fixedly installed on the top surface of one end of 09, and the power output shaft of the driving motor 410 is connected to a rotating disk 411 through a coupling transmission. An eccentric rod 412 is fixedly connected to one end of the top surface of the rotating disk 411, and a steering plate 413 is rotatably arranged on the surface of the eccentric rod 412. A movable groove 414 communicating with the interior of the steering plate 408 and the engaging block 409 is provided, and sliding rods 415 are fixedly connected to the inner walls of the two ends of the movable groove 414. One end of the steering plate 413 away from the eccentric rod 412 is slidably arranged on the surface of the sliding rod 415, a bracket 416 is fixedly connected to the outer wall of the conveying frame 2, a fixing frame 417 is fixedly connected to the bottom surface of the steering plate 408, a spring 418 is fixedly connected to the outer wall on the side where the bracket 416 and the fixing frame 417 are close to each other, and a positioning rod 419 is fixedly connected to the outer wall on the side close to the bracket 416 of the fixing frame 417, and the spring 418 is sleeved on the surface of the positioning rod 419.
[0033] Specifically, during the conveying process, the ceramic dishes on the conveyor belt 3 are limited by the dividing rod 402, the driving motor 1 410 is started to rotate the eccentric rod 412, the steering plate 2 413 slides along the surface of the sliding rod 415 and pulls the locking block 409, the locking block 409 rotates outward along the surface of the positioning column 407 and disengages from the straight triangular groove 405, the ceramic dishes generate a thrust on the dividing rod 402 and can continue to be conveyed, when the next straight triangular groove 405 rotates to the side of the locking block 409, with the elastic action of the spring 418, the eccentric rod 412 rotates one circle, and the locking block 409 is re-locked in the next straight triangular groove 405, so as to realize the cycle, separate multiple ceramic dishes, and adjust according to the detection speed of the ceramic dishes to ensure the detection effect.
[0034] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6In a preferred embodiment, the power output shaft of the stepper motor 501 is connected to the screw rod 502 through a coupling transmission, the surface of the screw rod 502 is threadedly connected to the lifting seat 503, the outer wall of the conveying frame 2 is fixedly connected to the guide column 504, the lifting seat 503 is slidably arranged on the surface of the guide column 504, and the end of the lifting seat 503 away from the guide column 504 is fixedly connected to the connecting frame 505; the bottom surface of one end of the connecting frame 505 is fixedly connected to the bracket three 506, and the bottom outer wall of the bracket three 506 is fixedly connected to a plurality of A bracket 4 507 is arranged in a circular array, and a driving motor 2 508 is fixedly installed on the outer wall of the bracket 3 506. The power output shaft of the driving motor 2 508 is connected to a driving gear 509 through a coupling transmission. A cleaning brush 2 523 is fixedly connected to the bottom surface of the driving gear 509. A plurality of driven gears 510 arranged in a circular array are meshed on the surface of the driving gear 509. The driven gear 510 is rotatably arranged in the bracket 4 507. A cleaning brush 1 511 is fixedly connected to the bottom surface of the driven gear 510. Connecting frame The bottom surface of one end of 505 away from the bracket three 506 is fixedly connected to the bracket five 512, the middle part of the bottom surface of the bracket five 512 is fixedly installed with the driving motor three 513, and the bottom surfaces of both ends of the bracket five 512 are fixedly connected with the outer sleeve 515, the power output shaft of the driving motor three 513 is connected to the rotating disk 514 through the coupling transmission, the rotating disk 514 is rotatably arranged on the top inner wall of the outer sleeve 515, the bottom surface of the outer sleeve 515 is fixedly installed with a fan 516, and the rotating disk 514 and the outer sleeve 515 are provided with a plurality of an air inlet hole 517; the interior of the rotating disk 514 is provided with a plurality of arc grooves 518 distributed in a circular array, the bottom surface of the outer disk 515 is provided with a plurality of strip grooves 519 corresponding to the arc grooves 518, and a moving rod 520 is slidably arranged inside the arc grooves 518 and the strip grooves 519, and a moving frame 521 is fixedly installed on the bottom outer wall of the moving rod 520, and an adsorption cotton cloth 522 is fixedly connected to the end of the moving frame 521 away from the moving rod 520, and the adsorption cotton cloth 522 is arranged at the lower outer side of the fan 516.
[0035] Specifically, when limiting the position of ceramic dishes, the stepper motor 501 is started to make the lifting seat 503 slide downward along the screw rod 502, the cleaning brush 1 511 and the cleaning brush 2 523 enter the second-to-last ceramic dish, the adsorption cotton cloth 522 enters the last ceramic dish, the driving motor 2 508 is started to rotate the driving gear 509, the driving gear 509 is meshed with the driven gear 510, so that the cleaning brush 2 523 and the plurality of cleaning brushes 1 511 rotate synchronously, the cleaning brush 1 511 and the cleaning brush 2 523 rotate along the bottom of the ceramic dishes to clean the stubborn stains on the inner wall of the bottom surface of the ceramic dishes, and the fan 516 generates wind force to the bottom of the ceramic dishes to clean the The stubborn stains cleaned out are blown to the outer side of the inner wall of the bottom surface. After the adsorption cotton cloth 522 contacts the inner wall of the bottom surface of the ceramic dishes, the driving motor 3 513 is started to rotate the rotating disk 514, and the moving rod 520 slides outward along the inside of the arc groove 518 and the strip groove 519. The adsorption cotton cloth 522 wipes the inner wall of the ceramic dishes and adsorbs the stains. When the adsorption cotton cloth 522 contacts the side wall of the ceramic dishes, the stepping motor 501 is driven in the reverse direction to make the adsorption cotton cloth 522 slide upward along the inner wall of the ceramic dishes to clean the attached stains out of the ceramic dishes, thereby achieving the cleaning of the stains on the ceramic dishes, avoiding the influence of stains on the defect detection effect of the ceramic dishes, and greatly reducing the probability of misjudgment.
[0036] Reference Figure 1 and Figure 7 In a preferred embodiment, a driving motor 48 is fixedly installed on the outer wall of one side of the mounting frame 7, and the power output shaft of the driving motor 48 is connected to the lamp holder 9 through a coupling transmission, and multiple fill lights 10 are fixedly installed on the outer wall of the lamp holder 9. A lifting cylinder 11 is fixedly installed on one end of the top surface of the imaging detector 1, and the output end of the lifting cylinder 11 is fixedly connected to the top surface of the annular guide rail 6. Guide columns 12 are fixedly connected to the four corners of the inner wall of the bottom surface of the imaging detector 1, and the annular guide rail 6 is slidably set on the surface of multiple guide columns 12.
[0037] Specifically, during the detection process, the fill light 10 is used to fill in the interior of the imaging detector 1. The required fill light 10 is directed toward the ceramic dishes by adjusting the driving motor 4 8. The mounting frame 7 slides along the surface of the annular guide rail 6 to change the fill light angle of the fill light 10. The annular guide rail 6 is moved up and down along the surface of the guide column 12 by adjusting the lifting cylinder 11 to change the height of the fill light, thereby achieving fill light for different positions, and the fill light effect is good.
[0038] It should be noted that the types of the multiple fill lights 10 are different and can be replaced according to actual needs.
[0039] A ceramic defect detection method based on machine vision, using a ceramic defect detection device based on machine vision as described above, comprises the following steps:
[0040] Step 1: The ceramic bowls and plates are transported along the conveyor belt 3 to one side of the imaging detector 1. The ceramic bowls and plates on the conveyor belt 3 are limited by the dividing rod 402. The driving motor 1 410 is started to rotate the engaging block 409 and disengage the straight triangular groove 405. The ceramic bowls and plates generate thrust on the dividing rod 402 to continue to be transported. Multiple ceramic bowls and plates are separated. The detection speed of the ceramic bowls and plates is adjusted to ensure the detection effect.
[0041] Step 2: while limiting the position of the ceramic dishes, start the stepper motor 501 to move the lifting seat 503 downward, the cleaning brush 1 511 and the cleaning brush 2 523 contact the bottom surface of the ceramic dishes, and start the driving motor 2 508 to clean the stubborn stains on the bottom surface of the ceramic dishes;
[0042] Step three, turn on the fan 516 at the same time, the fan 516 blows the cleaned stubborn stains to the outside of the bottom inner wall of the ceramic dishes, start the drive motor three 513, the adsorption cotton cloth 522 slides outward along the bottom inner wall of the ceramic dishes, when the adsorption cotton cloth 522 contacts the side wall of the ceramic dishes, the stepper motor 501 is driven in reverse to move the adsorption cotton cloth 522 with the stains upward, and finally the stains on the inner wall of the ceramic dishes are discharged through its upper opening.
[0043] Step 4: The cleaned ceramic dishes are transported to the interior of the imaging detector 1, and the fill light 10 slides along the annular guide rail 6, and the annular guide rail 6 slides up and down along the surface of the guide column 12 to fill light in the imaging detector 1 to ensure the quality of the inspection of defects in the ceramic dishes until the inspection is completed.
[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A ceramic defect detection device based on machine vision, comprising an imaging detector (1), characterized in that: The outer walls of both sides of the imaging detector (1) are fixedly connected to a conveying frame (2), the conveying frame (2) is provided with a conveying belt (3), the conveying belt (3) is movably arranged in the imaging detector (1), the outer wall of the conveying frame (2) is provided with a partition component (4), and the outer wall of the conveying frame (2) is provided with a stain cleaning component (5), the stain cleaning component (5) comprises a stepping motor (501), the stepping motor (501) is fixedly mounted on one side of the outer wall of the conveying frame (2), the interior of the imaging detector (1) is movably provided with an annular guide rail (6), and a mounting frame (7) is slidably arranged on the annular guide rail (6), The interior of the mounting frame (7) is provided with a plurality of fill-in lights (10) distributed in a circular array, the power output shaft of the stepping motor (501) is connected to a screw rod (502) through a coupling transmission, the surface of the screw rod (502) is threadedly connected to a lifting seat (503), the outer wall of the conveying frame (2) is fixedly connected to a guide column (504), the lifting seat (503) is slidably arranged on the surface of the guide column (504), one end of the lifting seat (503) away from the guide column (504) is fixedly connected to a connecting frame (505), the bottom surface of one end of the connecting frame (505) is fixedly connected to a bracket three (506), and the bracket three (506) is fixedly connected to the bottom surface of the connecting frame (505). The outer wall of the bottom is fixedly connected to a plurality of brackets four (507) distributed in a circumferential array, and the outer wall of the bracket three (506) is fixedly installed with a driving motor two (508), the power output shaft of the driving motor two (508) is connected to a driving gear (509) through a coupling transmission, the bottom surface of the driving gear (509) is fixedly connected to a cleaning brush two (523), the surface of the driving gear (509) is meshed with a plurality of driven gears (510) distributed in a circumferential array, the driven gear (510) is rotatably arranged in the bracket four (507), the bottom surface of the driven gear (510) is fixedly connected to a cleaning brush one (511), the connecting frame The bottom surface of one end of (505) away from the bracket three (506) is fixedly connected to the bracket five (512), the middle part of the bottom surface of the bracket five (512) is fixedly installed with the driving motor three (513), and the bottom surfaces of both ends of the bracket five (512) are fixedly connected with the outer sleeve (515), the power output shaft of the driving motor three (513) is connected to the rotating disk (514) through a coupling transmission, the rotating disk (514) is rotatably arranged on the top inner wall of the outer sleeve (515), the bottom surface of the outer sleeve (515) is fixedly installed with a fan (516), and a plurality of air inlet holes (517) are provided inside the rotating disk (514) and the outer sleeve (515).
2. A ceramic defect detection device based on machine vision according to claim 1, characterized in that: The rotating disk (514) is provided with a plurality of arc-shaped grooves (518) distributed in a circular array on the inside, the outer disk (515) is provided with a plurality of strip-shaped grooves (519) corresponding to the arc-shaped grooves (518) on the bottom surface, a moving rod (520) is slidably arranged inside the arc-shaped grooves (518) and the strip-shaped grooves (519), a moving frame (521) is fixedly mounted on the bottom outer wall of the moving rod (520), an end of the moving frame (521) away from the moving rod (520) is fixedly connected to an adsorption cotton cloth (522), and the adsorption cotton cloth (522) is arranged below the outer side of the fan (516).
3. A ceramic defect detection device based on machine vision according to claim 2, characterized in that: The partition assembly (4) comprises a partition plate (401), the partition plate (401) being rotatably arranged on the upper side of the conveyor belt (3), the outer wall of the partition plate (401) being fixedly connected to a plurality of partition rods (402) distributed in a circumferential array, the partition rods (402) being rotatably arranged above the conveyor belt (3), a connecting column (403) being fixedly connected to the middle of the bottom surface of the partition plate (401), a locking plate (404) being fixedly connected to the bottom surface of the connecting column (403), and the outer wall of the locking plate (404) being provided with a plurality of straight triangular grooves (405) distributed in a circumferential array.
4. The ceramic defect detection device based on machine vision according to claim 3 is characterized in that: A bracket 1 (406) is fixedly connected to the outer wall of the conveying frame (2) at a side away from the stepping motor (501); a positioning column (407) is fixedly connected to the top surface of the bracket 1 (406); a steering plate 1 (408) is rotatably provided at the top end of the positioning column (407); a locking block (409) is fixedly connected to the end of the steering plate 1 (408) away from the positioning column (407); and the locking block (409) abuts against the inner wall of the straight triangular groove (405).
5. The ceramic defect detection device based on machine vision according to claim 4 is characterized in that: A driving motor 1 (410) is fixedly mounted on the top surface of one end of the bracket 1 (406) close to the engaging block (409); the power output shaft of the driving motor 1 (410) is connected to a rotating disk (411) through a coupling transmission; an eccentric rod (412) is fixedly connected to one end of the top surface of the rotating disk (411); a steering plate 2 (413) is rotatably arranged on the surface of the eccentric rod (412); a movable groove (414) communicating with the interior of the steering plate 1 (408) and the engaging block (409) is provided; sliding rods (413) are fixedly connected to the inner walls of the two ends of the movable groove (414). 5), one end of the second steering plate (413) away from the eccentric rod (412) is slidably arranged on the surface of the sliding rod (415), the outer wall of the conveying frame (2) is fixedly connected with the second bracket (416), the bottom surface of the first steering plate (408) is fixedly connected with the fixing frame (417), the outer wall of the side where the second bracket (416) and the fixing frame (417) are close to each other is fixedly connected with a spring (418), the outer wall of the side of the fixing frame (417) close to the second bracket (416) is fixedly connected with a positioning rod (419), and the spring (418) is sleeved on the surface of the positioning rod (419).
6. The ceramic defect detection device based on machine vision according to claim 5, characterized in that: A driving motor 4 (8) is fixedly mounted on an outer wall of one side of the mounting frame (7); a power output shaft of the driving motor 4 (8) is connected to a lamp holder (9) via a coupling transmission; a plurality of fill lights (10) are fixedly mounted on the outer wall of the lamp holder (9); a lifting cylinder (11) is fixedly mounted on one end of the top surface of the imaging detector (1); an output end of the lifting cylinder (11) is fixedly connected to the top surface of the annular guide rail (6); guide columns (12) are fixedly connected to the four corners of the inner wall of the bottom surface of the imaging detector (1); and the annular guide rail (6) is slidably arranged on the surfaces of the plurality of guide columns (12).
7. A ceramic defect detection method based on machine vision, using a ceramic defect detection device based on machine vision as claimed in claim 6, characterized in that: The steps include: Step 1: The ceramic bowls and plates are conveyed along the conveyor belt (3) to one side of the imaging detector (1). The ceramic bowls and plates on the conveyor belt (3) are limited by the separation rod (402). The drive motor 1 (410) is started to rotate the engaging block (409) and disengage the straight triangular groove (405). The ceramic bowls and plates generate thrust on the separation rod (402) and can continue to be conveyed. The plurality of ceramic bowls and plates are separated. The detection speed of the ceramic bowls and plates is adjusted to ensure the detection effect. Step 2: while limiting the position of the ceramic dishes, start the stepper motor (501) to move the lifting seat (503) downward, so that the cleaning brush 1 (511) and the cleaning brush 2 (523) contact the bottom surface of the ceramic dishes, and start the driving motor 2 (508) to clean the stubborn stains on the bottom surface of the ceramic dishes; Step 3, simultaneously turning on the fan (516), the fan (516) blows the cleaned stubborn stains toward the outside of the bottom inner wall of the ceramic dish, starting the drive motor 3 (513), the adsorption cotton cloth (522) slides outward along the bottom inner wall of the ceramic dish, when the adsorption cotton cloth (522) contacts the side wall of the ceramic dish, the stepper motor (501) is driven in reverse to move the adsorption cotton cloth (522) with the stains upward, and finally the stains on the inner wall of the ceramic dish are discharged through its upper opening; Step 4: The cleaned ceramic dishes are transported to the interior of the imaging detector (1), and the fill light (10) slides along the annular guide rail (6). The annular guide rail (6) slides up and down along the surface of the guide column (12) to fill light in the imaging detector (1) to ensure the quality of the inspection of defects in the ceramic dishes until the inspection is completed.