CN117900154A - Product flaw monitoring system based on machine vision - Google Patents
Product flaw monitoring system based on machine vision Download PDFInfo
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- CN117900154A CN117900154A CN202311715606.9A CN202311715606A CN117900154A CN 117900154 A CN117900154 A CN 117900154A CN 202311715606 A CN202311715606 A CN 202311715606A CN 117900154 A CN117900154 A CN 117900154A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 43
- 238000001514 detection method Methods 0.000 claims abstract description 63
- 230000000007 visual effect Effects 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 22
- 239000013013 elastic material Substances 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 36
- 230000008569 process Effects 0.000 abstract description 25
- 238000010030 laminating Methods 0.000 description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 10
- 235000017491 Bambusa tulda Nutrition 0.000 description 10
- 241001330002 Bambuseae Species 0.000 description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 10
- 239000011425 bamboo Substances 0.000 description 10
- 230000006378 damage Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000013508 migration Methods 0.000 description 3
- 230000005012 migration Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3422—Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention belongs to the field of product detection, in particular to a product flaw monitoring system based on machine vision, which comprises a transportation module, a vision monitoring module and a classification module; and (3) a transportation module: the conveying module is used for conveying the products to the visual monitoring module and conveying the products to the classification module after detection is finished; visual monitoring module: the visual monitoring module comprises a detection unit and a positioning unit, wherein the detection unit is used for acquiring image information of a product and transmitting the information to the classification module; the positioning unit is used for fixing a product in motion in a detection area of the detection unit and releasing the product after detection is finished, the passing product can be stopped on the transport module by adding the positioning unit into the visual monitoring module, the detection unit can accurately detect, by the arrangement, the manual operation is replaced by machinery, and the transport module is not required to be frequently stopped and started, so that the detection process can run more smoothly.
Description
Technical Field
The invention belongs to the field of product detection, and particularly relates to a product flaw monitoring system based on machine vision.
Background
With the development of society, people have higher and higher requirements on the quality of products, so that the products need to be detected before the products come out of the field, and defective products are selected.
In the production process of the mask, the phenomenon that ear ropes on two sides of a finished product are missing or nose bridge strips are missing often occurs in the finished product, and credit is greatly reduced when the product is sold, so that a special flaw monitoring system is required to be arranged.
The existing detection process usually carries out one-to-one watching detection by manpower, so that more time is consumed, and the method for conveying the mask to a detection position by using a conveyor belt and then stopping the conveyor belt for detection is also available.
Therefore, the invention provides a system and a method for monitoring product flaws based on machine vision.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention discloses a product flaw monitoring system based on machine vision, which comprises a transportation module, a vision monitoring module and a classification module;
And (3) a transportation module: the conveying module is used for conveying the products to the visual monitoring module and conveying the products to the classification module after detection is finished;
visual monitoring module: the visual monitoring module comprises a detection unit and a positioning unit, wherein the detection unit is used for acquiring image information of a product and transmitting the information to the classification module; the positioning unit is used for fixing the moving product in a detection area of the detection unit and releasing the product after the detection is finished;
And a classification module: the classification module is used for receiving the information transmitted by the vision, judging whether the product has incomplete or not, and classifying, storing and processing the incomplete product and the qualified product;
through adding positioning unit in visual monitoring module, can stop the product of process on transport module, let detecting element can carry out accurate detection, through this kind of setting, not only replaced manual operation with machinery, and need not to operate transport module and stop frequently and open, let the operation that the testing process is more smooth and easy.
Preferably, the visual monitoring module comprises a camera shooting module and a hydraulic cylinder, the camera shooting module is located on one side of the hydraulic cylinder, an optical detector is fixedly installed on one side of the camera shooting module, a hydraulic rod is slidably connected to the inner side of the hydraulic cylinder, through the arrangement, the function of mechanically detecting product flaws is achieved, the service life of a conveyor belt is reduced due to frequent switching of the conveyor belt compared with the detection of frequent switching of the conveyor belt, meanwhile, the fault tolerance rate of the method is larger, the condition that products do not stay in a shooting area of the camera shooting module is avoided, and therefore the quality and efficiency of monitoring are effectively guaranteed.
Preferably, the bottom fixed mounting of hydraulic stem has two sets of side bars, two sets of middle part fixed mounting of side bar has the center pole, the length of center pole is less than the length of side pole, the bottom fixed mounting of center pole has a plurality of friction brushes of group, the friction brush is elastic material setting, after the hydraulic stem sinks, the setting of cooperation center pole is shorter for the center of hydraulic stem is concave state, when the hydraulic stem sinks, can let elastic friction brush contact conveyer belt, through this kind of setting, can let the hydraulic stem fully contact with the conveyer belt, can not harm the conveyer belt simultaneously, and the toughness of friction brush can effectually block the product in the shooting district of camera module, thereby can guarantee the testing process, can not harm the conveyer belt simultaneously.
Preferably, one side fixed mounting of center pole has the deformation strip, the deformation strip is the arc setting, and the deformation strip is elastic material, the bottom fixed mounting of deformation strip has the laminating strip, the laminating strip is flexible material preparation, when center pole sinks, the deformation strip can the conveyer belt contact, the arc setting of cooperation deformation strip and self elastic material setting, make the deformation strip can take place to bend, its tip can laminate on the conveyer belt, afterwards follow the continuation work of conveyer belt, the product can remove on the deformation strip, through this kind of setting, when letting the product can temporarily shift to stationary object when examining, not only be favorable to detecting the process, and the effort of conveyer belt can not continue to act on the product this moment, greatly reduced product continues the problem that scurry or pile up under the continuous effort of conveyer belt after the location, only need carry the hydraulic pressure pole upwards, the elasticity of cooperation deformation strip itself, the deformation strip can reply the original state, and the product can fall on the conveyer belt again and continue to transport.
Preferably, the hollow groove has been seted up to the inboard of deformation strip, one side fixed mounting of deformation strip has transmission pipe one, the one end fixedly connected with air pump of transmission pipe one, a plurality of groups of through-holes have been seted up to one side that the center pole was kept away from to the deformation strip, after the product removes the deformation strip, starts the air pump, draws air through transmission pipe one for through-hole department produces suction, thereby can be stable hold the product, further improved the stable effect of placing of product when detecting, guaranteed detection quality.
Preferably, the laminating strip is flat setting, pulley one and pulley two are connected in inboard rotation of laminating strip, pulley one and pulley two are mutually laminated, pulley one and pulley two are located the both sides of laminating strip respectively, the setting of cooperation laminating strip, the toughness of laminating strip is less than the deformation strip for the laminating strip can be under the effect of gravity with the comprehensive laminating of conveyer belt, cooperation pulley one and pulley two's setting simultaneously, when laminating strip is submerged, pulley one carries out the transmission with the conveyer belt and is connected, makes pulley one rotate, pulley two also rotates under pulley one's drive simultaneously, and pulley two's rotation direction is the same with the transmission direction of conveyer belt, consequently can assist the process that the product was to the deformation strip upward migration, and guarantee that the product can all remove on the deformation strip finally, thereby further improved the shooting quality in the testing process.
Preferably, the outside fixed mounting of pneumatic cylinder has a flexible section of thick bamboo, flexible section of thick bamboo is the slope form setting, the inboard sliding connection of flexible section of thick bamboo has the telescopic link, be connected with transmission pipe two between the top inboard of flexible section of thick bamboo and the air pump, and fixedly connected with spring one between flexible section of thick bamboo and the telescopic link, after the detection, start the air pump and let the telescopic link extend for the bottom of telescopic link can hold the tip of product, lets the hydraulic stem rise again this moment, lets the product can be more smooth and neat break away from the deformation strip, thereby guaranteed that the product detects the back can also be at the transmission band neat transportation, convenient subsequent classification process.
Preferably, the intercommunication groove has been seted up to the inboard of telescopic link, the intercommunication groove has been kept away from the one end of spring one and has been seted up the storage tank, the inboard sliding connection of intercommunication groove has the extrusion arm, fixed mounting has the spring two between extrusion arm and the telescopic link, the elastic coefficient of spring two is greater than the spring one, the inboard fixed mounting of storage tank has the parcel bag, can outwards push up extrusion arm along with the increase of atmospheric pressure to can outwards push out flexible parcel bag and contact with the product, when having increased friction, still can not harm the product, thereby guaranteed the quality safety of product.
Preferably, the middle part fixed mounting of parcel bag has the contact pad, fixedly connected with connecting strip between contact pad and the extrusion arm, the bottom of telescopic link is ellipsoidal setting, the outside of contact pad adheres to there is glue, when the outside protrusion of parcel bag carrier contact pad, the cooperation glue outside the contact pad can slightly glue the product on the contact pad, afterwards reduce the output air pressure of air pump, make spring two and extrusion arm retract, let the contact pad also can receive and accomodate in the groove, this in-process, deformation strip returns to vertical state, the product can follow deformation strip earlier, drop from the contact pad outside again, through this kind of setting, need not to press the product with the force and also can be smooth take down the product from deformation strip smoothly, the structure setting of cooperation telescopic link bottom simultaneously, can reduce the damage to the product when peeling off.
The method is suitable for the product flaw monitoring system based on machine vision, and specifically comprises the following steps:
s1: conveying products to be detected to the camera module at a constant speed through a conveyor belt, wherein a space of more than fifty centimeters is arranged between the products;
S2: along with the transportation of the conveyor belt, when the optical detector detects products, the hydraulic cylinder is started to drive the hydraulic rod downwards, so that the hydraulic rod stops the products on the conveyor belt;
S3: at the moment, shooting detection is carried out through the shooting module, the hydraulic rod is lifted after the detection is finished, products continue to move, and the detected products are classified through the classification module arranged subsequently;
through the arrangement, the function of mechanically detecting the defects of the product is realized, compared with the detection of frequently opening and closing the conveyor belt, the frequent switching of the conveyor belt easily causes the reduction of the service life of the conveyor belt, and meanwhile, the fault tolerance rate of the method is larger, and the defect that the product does not stay in a shooting area of the camera module is avoided, so that the quality and the efficiency of monitoring are effectively ensured.
The beneficial effects of the invention are as follows:
1. according to the product flaw monitoring system and method based on machine vision, the positioning unit is added in the vision monitoring module, so that the passing product can be stopped on the transportation module, the detection unit can accurately detect the product, by the arrangement, the machine is used for replacing manual operation, and the transportation module is not required to be frequently stopped and started, so that the detection process can be operated more smoothly.
2. According to the product flaw monitoring system and method based on machine vision, the deformation strip is arranged, so that the detection process is facilitated when the product can be temporarily transferred to a stationary object during detection, the acting force of the conveyor belt can not continuously act on the product, and the problem that the product is continuously scattered or stacked under the continuous acting force of the conveyor belt after being positioned is greatly reduced.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a system block diagram of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view of a hydraulic stem of the present invention;
FIG. 4 is a cross-sectional view of the telescoping cylinder of the present invention;
FIG. 5 is a cross-sectional view of a telescoping rod of the present invention;
FIG. 6 is a block diagram of a method in the present invention;
in the figure: 1. a camera module; 2. an optical detector; 3. a hydraulic cylinder; 4. an air pump; 5. a hydraulic rod; 6. a telescopic cylinder; 7. a side bar; 8. a central rod; 9. a friction brush; 10. a pulley I; 11. a second pulley; 12. a bonding strip; 13. a hollow groove; 14. a deformation strip; 15. a through hole; 16. a first transmission pipe; 17. a second transmission pipe; 18. a telescopic rod; 19. a communication groove; 20. a storage groove; 21. a wrap bag; 22. a contact pad; 23. a connecting strip; 24. the arm is pressed.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1, a machine vision-based product flaw monitoring system according to an embodiment of the present invention includes a transportation module, a vision monitoring module, and a classification module;
And (3) a transportation module: the conveying module is used for conveying the products to the visual monitoring module and conveying the products to the classification module after detection is finished;
visual monitoring module: the visual monitoring module comprises a detection unit and a positioning unit, wherein the detection unit is used for acquiring image information of a product and transmitting the information to the classification module; the positioning unit is used for fixing the moving product in a detection area of the detection unit and releasing the product after the detection is finished;
And a classification module: the classification module is used for receiving the information transmitted by the vision, judging whether the product has incomplete or not, and classifying, storing and processing the incomplete product and the qualified product;
through adding positioning unit in visual monitoring module, can stop the product of process on transport module, let detecting element can carry out accurate detection, through this kind of setting, not only replaced manual operation with machinery, and need not to operate transport module and stop frequently and open, let the operation that the testing process is more smooth and easy.
As shown in fig. 2 to 3, the visual monitoring module comprises a camera module 1 and a hydraulic cylinder 3, the camera module 1 is located at one side of the hydraulic cylinder 3, an optical detector 2 is fixedly installed at one side of the camera module 1, a hydraulic rod 5 is slidably connected to the inner side of the hydraulic cylinder 3, when a product is transported to the optical detector 2 in operation, the hydraulic cylinder 3 is started to drive the hydraulic rod 5 downwards, the hydraulic rod 5 stops the product on a conveyor belt for the camera module 1 to shoot a photo of the product, the hydraulic rod 5 is lifted after shooting is finished, the product is allowed to move continuously, through the arrangement, the function of mechanically detecting the defect of the product is realized, compared with the detection of frequently opening and closing the conveyor belt, the service life of the conveyor belt is easily reduced due to frequent switching of the conveyor belt, meanwhile, the fault tolerance rate is higher, and the product does not need to stay in the shooting area of the camera module 1, so that the quality and the efficiency of monitoring are effectively ensured.
As shown in fig. 2 to 3, two groups of side rods 7 are fixedly mounted at the bottom end of the hydraulic rod 5, a central rod 8 is fixedly mounted at the middle part of the side rods 7, the length of the central rod 8 is smaller than that of the side rods 7, a plurality of groups of friction brushes 9 are fixedly mounted at the bottom end of the central rod 8, the friction brushes 9 are made of elastic materials, and are arranged in a short mode when the hydraulic rod 3 is submerged and matched with the central rod 8 in a working mode, so that the center of the hydraulic rod 5 is in an upward concave mode, when the hydraulic rod 5 is submerged, the elastic friction brushes 9 can be in contact with a conveying belt, the hydraulic rod 5 can be fully in contact with the conveying belt through the arrangement, meanwhile, the conveying belt cannot be damaged, and products can be effectively blocked in a shooting area of the camera module 1 due to the toughness of the friction brushes 9, so that a detection process can be guaranteed, and meanwhile, the conveying belt cannot be damaged.
As shown in fig. 2 to 3, a deformation strip 14 is fixedly installed on one side of the center rod 8, the deformation strip 14 is in an arc shape, the deformation strip 14 is made of an elastic material, a bonding strip 12 is fixedly installed at the bottom end of the deformation strip 14, the bonding strip 12 is made of a flexible material, when the center rod 8 sinks, the deformation strip 14 is contacted with a conveying belt, the arc shape of the deformation strip 14 is matched with the arc shape of the deformation strip 14 and the elastic material of the deformation strip 14, the end of the deformation strip 14 is matched with the conveying belt, then the deformation strip 14 is matched with the continuous operation of the conveying belt, a product can move onto the deformation strip 14, by the arrangement, when the product can be temporarily transferred to a stationary object during detection, the detection process is facilitated, the acting force of the conveying belt can not continuously act onto the product, the problem that the product continuously moves around or stacks under the continuous acting force of the conveying belt after the positioning is greatly reduced, after the detection is finished, only the hydraulic rod 5 is lifted upwards, the deformation strip 14 is matched with the elasticity of the deformation strip 14, and the product can fall onto the conveying belt again for continuous transportation.
As shown in fig. 2 to 3, the inner side of the deformation strip 14 is provided with a hollow groove 13, one side of the deformation strip 14 is fixedly provided with a first transmission pipe 16, one end of the first transmission pipe 16 is fixedly connected with an air pump 4, one side of the deformation strip 14 far away from the center rod 8 is provided with a plurality of groups of through holes 15, when the product moves onto the deformation strip 14 in operation, the air pump 4 is started, and air is pumped through the first transmission pipe 16, so that suction is generated at the through holes 15, the product can be stably sucked, the stable placing effect of the product in detection is further improved, and the detection quality is ensured.
As shown in fig. 2 to 3, the laminating strip 12 is in a flat arrangement, the inner side of the laminating strip 12 is rotationally connected with the pulley 110 and the pulley two 11, the pulley 110 and the pulley two 11 are mutually laminated, the pulley 1 and the pulley two 11 are respectively positioned at two sides of the laminating strip 12, when in operation, the laminating strip 12 is matched with the arrangement of the laminating strip 12, the toughness of the laminating strip 12 is smaller than that of the deforming strip 14, the laminating strip 12 can be comprehensively laminated with the conveyor belt under the action of gravity, meanwhile, the pulley 110 is in transmission connection with the conveyor belt when the laminating strip 12 is submerged, so that the pulley 110 is rotated, the pulley two 11 is also rotated under the drive of the pulley 110, and the rotation direction of the pulley two 11 is the same as the transmission direction of the conveyor belt, therefore, the product can be assisted to the migration process on the deforming strip 14, and the product can be ensured to be completely moved onto the deforming strip 14, thereby further improving the shooting quality in the detection process.
As shown in fig. 4, the outside fixed mounting of pneumatic cylinder 3 has a telescopic section of thick bamboo 6, telescopic section of thick bamboo 6 is the slope form setting, the inboard sliding connection of telescopic section of thick bamboo 6 has telescopic link 18, be connected with transmission pipe two 17 between the inboard and the air pump 4 in top of telescopic section of thick bamboo 6, and fixedly connected with spring one between telescopic section of thick bamboo 6 and the telescopic link 18, during operation, when detecting the back, start air pump 4 and let telescopic link 18 extend for the bottom of telescopic link 18 can hold the tip of product, let hydraulic link 5 rise again this moment, let the product can be more smooth and neat break away from deformation strip 14, thereby guaranteed that the product can also be in order transportation on the transmission band after detecting, the convenient subsequent classification process.
As shown in fig. 4 to 5, the inner side of the telescopic rod 18 is provided with a communicating groove 19, one end of the communicating groove 19 away from the first spring is provided with a containing groove 20, the inner side of the communicating groove 19 is slidably connected with a pressing arm 24, a second spring is fixedly arranged between the pressing arm 24 and the telescopic rod 18, the elastic coefficient of the second spring is larger than that of the first spring, the inner side of the containing groove 20 is fixedly provided with a wrapping bag 21, and when in operation, the pressing arm 24 is outwards pushed along with the increase of air pressure, so that the flexible wrapping bag 21 can be outwards pushed out to be in contact with a product, the product is not damaged while friction is increased, and the quality safety of the product is ensured.
As shown in fig. 5, the contact pad 22 is fixedly mounted in the middle of the wrapping bag 21, a connecting strip 23 is fixedly connected between the contact pad 22 and the extruding arm 24, the bottom end of the telescopic rod 18 is in an ellipsoidal arrangement, glue is attached to the outer side of the contact pad 22, when the contact pad 22 of the carrier of the wrapping bag 21 protrudes outwards during operation, the glue matched with the outer side of the contact pad 22 slightly adheres the product to the contact pad 22, then the output air pressure of the air pump 4 is reduced, the spring II and the extruding arm 24 retract, the contact pad 22 also receives the accommodating groove 20, in this process, the deformation strip 14 returns to a vertical state, meanwhile, the product can firstly fall from the raw material of the deformation strip 14 and then fall from the outer side of the contact pad 22, through the arrangement, the product can be smoothly taken down from the deformation strip 14 without pressing the product with force, and meanwhile, the damage to the product can be reduced during stripping due to the structural arrangement of the bottom end of the telescopic rod 18.
As shown in fig. 6, a method for monitoring product flaws based on machine vision is applicable to the system for monitoring product flaws based on machine vision, and specifically comprises the following steps:
S1: conveying products to be detected to the camera module 1 at a constant speed through a conveyor belt, wherein a space of more than fifty centimeters is arranged between the products;
S2: along with the transportation of the conveyor belt, when the optical detector 2 detects products, the hydraulic cylinder 3 is started to drive the hydraulic rod 5 downwards, so that the hydraulic rod 5 stops the products on the conveyor belt;
S3: at the moment, shooting detection is carried out through the shooting module 1, the hydraulic rod 5 is lifted after the detection is finished, products continue to move, and the detected products are classified through a classification module arranged subsequently;
Through the arrangement, the function of mechanically detecting the defects of the product is realized, compared with the detection of frequently opening and closing the conveyor belt, the frequent switching of the conveyor belt easily causes the reduction of the service life of the conveyor belt, and meanwhile, the fault tolerance rate of the method is larger, and the defect that the product does not stay in the shooting area of the camera module 1 is avoided, so that the quality and the efficiency of monitoring are effectively ensured.
When the product is transported to the optical detector 2, the hydraulic cylinder 3 is started to drive the hydraulic rod 5 downwards, so that the hydraulic rod 5 stops the product on the conveyor belt for the camera module 1 to shoot a picture of the product, and after shooting is finished, the hydraulic rod 5 is lifted to enable the product to continue to move; when the device works, after the hydraulic rod 3 is sunk, the center of the hydraulic rod 5 is in a concave state by being matched with the shorter setting of the center rod 8, and when the hydraulic rod 5 is sunk, the elastic friction brush 9 can be contacted with the conveyor belt, through the setting, the hydraulic rod 5 can be fully contacted with the conveyor belt, the conveyor belt is not damaged, and the product can be effectively blocked in a shooting area of the camera module 1 by the toughness of the friction brush 9, so that the detection process can be ensured, and the conveyor belt is not damaged; when the central rod 8 is in a sinking state, the deformation strip 14 is contacted with the conveyor belt, the arc-shaped arrangement of the deformation strip 14 and the self elastic material arrangement are matched, so that the deformation strip 14 is bent, the end part of the deformation strip 14 is attached to the conveyor belt, then the product can move to the deformation strip 14 along with the continuous operation of the conveyor belt, the detection process is facilitated when the product can be temporarily transferred to a stationary object during detection, the acting force of the conveyor belt can not be continuously acted on the product at the moment, the problem that the product is continuously scattered or stacked around under the continuous acting force of the conveyor belt after being positioned is greatly reduced, when the detection is finished, the hydraulic rod 5 is only required to be lifted upwards, the deformation strip 14 is restored along with the elasticity of the deformation strip 14, and the product can be continuously transported on the conveyor belt again; when the product is in operation, after the product moves onto the deformation strip 14, the air pump 4 is started, and air is pumped through the first transmission pipe 16, so that suction is generated at the through hole 15, the product can be stably sucked, the stable placing effect of the product in detection is further improved, and the detection quality is ensured; when the device works, the toughness of the bonding strip 12 is smaller than that of the deformation strip 14 by matching with the arrangement of the bonding strip 12, so that the bonding strip 12 can be comprehensively bonded with a conveyor belt under the action of gravity, meanwhile, by matching with the arrangement of the pulley I10 and the pulley II 11, when the bonding strip 12 is sunk, the pulley I10 is in transmission connection with the conveyor belt, so that the pulley I10 rotates, meanwhile, the pulley II 11 is also driven to rotate by the pulley I10, and the rotation direction of the pulley II 11 is the same as the transmission direction of the conveyor belt, therefore, the migration process of a product to the deformation strip 14 can be assisted, and the product can be ensured to be finally moved to the deformation strip 14 completely, so that the shooting quality in the detection process is further improved; when the detection is finished, the air pump 4 is started to extend the telescopic rod 18, so that the bottom end of the telescopic rod 18 can press the end part of a product, and then the hydraulic rod 5 is lifted, so that the product can be separated from the deformation strip 14 more smoothly and neatly, and the product can be transported neatly on the conveyor belt after being detected, thereby facilitating the subsequent classification process; when the device works, the extrusion arm 24 is pushed outwards along with the increase of air pressure, so that the flexible wrapping bag 21 can be pushed outwards and contacted with a product, friction is increased, the product is not damaged, and the quality safety of the product is ensured; during operation, when the contact pad 22 of the carrier of the wrapping bag 21 protrudes outwards, the product can be lightly adhered to the contact pad 22 by matching with glue on the outer side of the contact pad 22, then the output air pressure of the air pump 4 is reduced, the second spring and the extrusion arm 24 retract, the contact pad 22 can also receive the storage groove 20, in the process, the deformation strip 14 returns to the vertical state, meanwhile, the product can firstly come from the raw material on the deformation strip 14 and then fall from the outer side of the contact pad 22, through the arrangement, the product can be smoothly taken down from the deformation strip 14 without pressing the product with force, and meanwhile, the damage to the product can be reduced when peeling due to the structural arrangement of the bottom end of the telescopic rod 18.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. Product flaw monitoring system based on machine vision, its characterized in that: the system comprises a transportation module, a visual monitoring module and a classification module;
And (3) a transportation module: the conveying module is used for conveying the products to the visual monitoring module and conveying the products to the classification module after detection is finished;
visual monitoring module: the visual monitoring module comprises a detection unit and a positioning unit, wherein the detection unit is used for acquiring image information of a product and transmitting the information to the classification module; the positioning unit is used for fixing the moving product in a detection area of the detection unit and releasing the product after the detection is finished;
And a classification module: the classification module is used for receiving the information transmitted by the vision, judging whether the product has incomplete or not, and classifying, storing and processing the incomplete product and the qualified product;
the visual monitoring module comprises a camera module (1) and a hydraulic cylinder (3), wherein the camera module (1) is positioned on one side of the hydraulic cylinder (3), an optical detector (2) is fixedly arranged on one side of the camera module (1), and a hydraulic rod (5) is connected to the inner side of the hydraulic cylinder (3) in a sliding manner;
Two groups of side rods (7) are fixedly arranged at the bottom end of the hydraulic rod (5), a center rod (8) is fixedly arranged in the middle of each group of side rods (7), the length of the center rod (8) is smaller than that of each side rod (7), a plurality of groups of friction brushes (9) are fixedly arranged at the bottom end of each center rod (8), and the friction brushes (9) are made of elastic materials;
A deformation strip (14) is fixedly arranged on one side of the central rod (8), the deformation strip (14) is in an arc shape, the deformation strip (14) is made of elastic materials, a bonding strip (12) is fixedly arranged at the bottom end of the deformation strip (14), and the bonding strip (12) is made of flexible materials;
The inner side of the deformation strip (14) is provided with a hollow groove (13), one side of the deformation strip (14) is fixedly provided with a first transmission pipe (16), one end of the first transmission pipe (16) is fixedly connected with an air pump (4), and one side of the deformation strip (14) far away from the center rod (8) is provided with a plurality of groups of through holes (15);
The telescopic hydraulic device is characterized in that a telescopic cylinder (6) is fixedly arranged on the outer side of the hydraulic cylinder (3), the telescopic cylinder (6) is obliquely arranged, a telescopic rod (18) is slidably connected on the inner side of the telescopic cylinder (6), a transmission pipe II (17) is connected between the inner side of the top end of the telescopic cylinder (6) and the air pump (4), and a spring I is fixedly connected between the telescopic cylinder (6) and the telescopic rod (18).
2. A machine vision based product flaw monitoring system according to claim 1 wherein: the telescopic rod is characterized in that a communicating groove (19) is formed in the inner side of the telescopic rod (18), a containing groove (20) is formed in one end, far away from the first spring, of the communicating groove (19), an extruding arm (24) is connected to the inner side of the communicating groove (19) in a sliding mode, a second spring is fixedly installed between the extruding arm (24) and the telescopic rod (18), the elastic coefficient of the second spring is larger than that of the first spring, and a wrapping bag (21) is fixedly installed in the inner side of the containing groove (20).
3. A machine vision based product flaw monitoring system according to claim 2 wherein: the middle part fixed mounting of parcel bag (21) has contact pad (22), fixedly connected with connecting strip (23) between contact pad (22) and extrusion arm (24), the bottom of telescopic link (18) is the ellipsoidal setting, the outside of contact pad (22) is attached with glue.
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| CN202311715606.9A CN117900154A (en) | 2022-03-09 | 2022-03-09 | Product flaw monitoring system based on machine vision |
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| CN202311715606.9A CN117900154A (en) | 2022-03-09 | 2022-03-09 | Product flaw monitoring system based on machine vision |
| CN202210226143.9A CN114602817B (en) | 2022-03-09 | 2022-03-09 | Product flaw monitoring system and method based on machine vision |
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| CN102673952B (en) * | 2012-05-18 | 2014-02-26 | 昆山诚业德通讯科技有限公司 | Double-stroke shield conveying mechanism |
| CN102717004B (en) * | 2012-07-11 | 2014-12-10 | 重庆宝钢汽车钢材部件有限公司 | Steel plate blanking blocking device |
| CN102935903B (en) * | 2012-11-16 | 2014-08-27 | 中国农业机械化科学研究院 | Miniature potato graded counting system |
| CN103606764B (en) * | 2013-11-14 | 2016-05-11 | Tcl空调器(中山)有限公司 | Compressor and terminal socket thereof |
| CN106181356B (en) * | 2016-07-11 | 2019-03-15 | 重庆莱美药业股份有限公司 | Medicine mixer kludge |
| CN107496104A (en) * | 2017-08-31 | 2017-12-22 | 王露露 | A kind of Multi-functional health-care patient bed |
| CN109985934A (en) * | 2017-12-29 | 2019-07-09 | 青岛中集集装箱制造有限公司 | The manufacturing equipment and manufacturing method of corner post of container |
| CN108563297B (en) * | 2018-04-25 | 2020-11-27 | 华为技术有限公司 | Subassembly, heat abstractor and server keep out wind |
| CN109834783B (en) * | 2018-10-16 | 2024-02-23 | 福建杜氏木业有限公司 | Production system for efficiently utilizing raw bamboo boards |
| CN210733619U (en) * | 2019-07-08 | 2020-06-12 | 海门市紫光印刷机械有限公司 | Wrong binding prevention device for saddle nails |
| CN111790253A (en) * | 2020-07-20 | 2020-10-20 | 倪浩 | Tertiary tail gas cleanup tower of high concentration nitrogen oxide |
| CN214030387U (en) * | 2020-07-31 | 2021-08-24 | 陕西榆林能源集团横山煤电有限公司 | Coal material transportation stock guide |
| CN213398230U (en) * | 2020-08-31 | 2021-06-08 | 厦门大学嘉庚学院 | Product appearance detection device of machine vision |
| CN113063796A (en) * | 2021-04-19 | 2021-07-02 | 闽江学院 | Spinning cake appearance detection equipment and control method thereof |
| CN215965929U (en) * | 2021-06-29 | 2022-03-08 | 洛阳珩逸机械设备有限公司 | Rotary pressing arm type positioning table for plate bending center |
| CN215695981U (en) * | 2021-09-09 | 2022-02-01 | 临沂市国盛彩印包装有限公司 | Take quality control of products machine of examining of function is rejected to waste product |
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