CN117213411B - Intelligent decorative plate flatness detection device and detection method based on machine vision - Google Patents
Intelligent decorative plate flatness detection device and detection method based on machine vision Download PDFInfo
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- CN117213411B CN117213411B CN202311479886.8A CN202311479886A CN117213411B CN 117213411 B CN117213411 B CN 117213411B CN 202311479886 A CN202311479886 A CN 202311479886A CN 117213411 B CN117213411 B CN 117213411B
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- 230000000007 visual effect Effects 0.000 claims abstract description 13
- 239000007888 film coating Substances 0.000 claims abstract description 12
- 238000009501 film coating Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 6
- 238000010030 laminating Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 210000002489 tectorial membrane Anatomy 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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Abstract
The invention relates to the field of plate flatness detection, in particular to an intelligent decorative plate flatness detection device based on machine vision, which is arranged on a rack of a belt conveyor, wherein the intelligent detection device comprises a film coating device and a visual detection module, and the film coating device comprises a first bracket, a charging barrel and a film coating component; the first bracket is arranged on the frame; the charging barrel is rotatably arranged on the first bracket, and a transparent film is wound on the charging barrel; the film covering component is arranged on the frame; the visual detection module comprises a second bracket and an industrial camera; the second bracket is arranged on the frame; the industrial camera is mounted on the second mount. The invention realizes the function of automatically detecting the flatness of the surface of the plate, achieves the effect of exposing the concave-convex condition of the surface of the plate by attaching the transparent film on the surface of the plate, further rapidly and accurately judges the flatness of the surface of the plate, and solves the problems of complicated operation steps and easy misjudgment of the traditional plate detection device.
Description
Technical Field
The invention relates to the field of plate flatness detection, in particular to an intelligent decorative plate flatness detection device and method based on machine vision.
Background
After the processing of the resin sheet, if the surface of the sheet is uneven, the use of the sheet is affected, and therefore, the sheet needs to be detected after the processing of the sheet is completed, and the surface of the resin sheet is usually white or milky, and when the surface has concave-convex, defects are difficult to directly observe.
For this reason, chinese patent CN110567979B discloses a surface flatness rapid detecting device for resin sheet processing, which is convenient for guiding the sheet through the arrangement of the guide frame, so that the sheet is transmitted between the net drums through the guide frame; and through setting up the net section of thick bamboo, the liquid of colour is filled in the net section of thick bamboo, uses the adsorbed layer can paint colored liquid on the panel, through scribbling colored liquid on the panel, effectively discerns the defect of panel.
However, the existing detection device needs to smear colored liquid on the surface of the plate, then attach the plate to white paper, then judge the defect condition by observing marks presented on the white paper, and finally clean the plate; the steps are very complicated, and once the colored liquid cannot be printed on the plate or the white paper smoothly, misjudgment of the flatness of the plate can be caused.
Disclosure of Invention
Aiming at the problems, the intelligent detection device and the detection method for the flatness of the decorative plate based on machine vision are provided, and the problems that the operation steps of the traditional plate detection device are complex and misjudgment is easy are solved through a belt conveyor, a film covering device and a vision detection module.
In order to solve the problems in the prior art, the invention provides an intelligent detection device for the flatness of a decorative plate based on machine vision, which is arranged on a rack of a belt conveyor, wherein the intelligent detection device comprises a film covering device and a visual detection module, and the film covering device comprises a first bracket, a charging barrel and a film covering component; the first bracket is arranged on the frame; the charging barrel is rotatably arranged on the first bracket, and a transparent film is wound on the charging barrel; the film covering component is arranged on the frame, and when the plate passes through the film covering component in a working state, a layer of transparent film is attached to the surface of the plate by the film covering component; the visual detection module comprises a second bracket and an industrial camera; the second bracket is arranged on the frame; the industrial camera is mounted on the second mount.
Preferably, the film covering assembly comprises a third bracket, a first elastic piece, a mounting seat, a mounting shaft and a compression roller; the third bracket is arranged on the frame; the two mounting seats are arranged; the first elastic piece is at least provided with two and is respectively arranged on the two mounting seats, and two ends of the first elastic piece are respectively connected with the third bracket and the mounting seats; two ends of the mounting shaft are respectively connected with the two mounting seats in a rotating way; the compression roller is sleeved on the installation shaft, and one end of the transparent film wound on the charging barrel is bridged on the compression roller.
Preferably, the frame is also provided with a cutting device, and the cutting device comprises an abutting component, a mounting frame and a cutting knife; the abutting component is arranged on the frame and is used for fixing one end of the transparent film on the plate; the mounting frame is mounted on the mounting shaft; the cutting knife is slidably arranged on the mounting frame; the mounting frame is also provided with an auxiliary control device for controlling the movement of the cutting knife.
Preferably, the abutting assembly comprises a guide rail, a sliding block, a mounting block, an abutting plate, a third elastic piece and a pressure sensor; the guide rail is arranged on the frame; the sliding block and the mounting block are slidably mounted on the guide rail; the abutting plate is arranged on the mounting block; two ends of the third elastic piece are respectively connected with the sliding block and the pressure sensor; the pressure sensor is arranged on the mounting block; the frame is provided with a linear driving component for controlling the sliding block to move along the guide rail.
Preferably, the auxiliary control device comprises an elastic connecting component, a locking component, a control component and a resetting component; the elastic connecting component comprises a control block, a telescopic rod and a fourth elastic piece; the control block is slidably arranged on the mounting frame and is connected with the cutting knife; two ends of the telescopic rod are respectively connected with the mounting frame and the control block; two ends of the fourth elastic piece are respectively connected with the mounting frame and the control block; the locking component is arranged on the mounting frame and is used for fixing the control block; the control component is arranged on the frame and used for controlling the locking component to be opened and closed; the reset component is arranged on the mounting frame and is used for driving the control block to reset; the installation block is provided with an oblique lug, and a gap for the cutting knife to pass through is arranged between the abutting plate and the driving belt on the belt conveyor.
Preferably, the locking assembly comprises a locking block, a connecting plate and a fifth elastic piece; the locking block is slidably arranged on the mounting frame; the connecting plate is fixedly connected with the locking block; two ends of the fifth elastic piece are respectively connected with the connecting plate and the mounting frame; the control block is provided with a locking groove which is in plug-in fit with the locking block.
Preferably, the control assembly comprises a fixed block; the fixed block is arranged on the frame; the locking block is provided with a chute; when the mounting frame is in contact with the locking block in the descending process, the locking block can be abutted with the chute and pushed to move in the direction away from the locking groove by overcoming the elastic force of the fifth elastic piece.
Preferably, the reset assembly comprises a linear driver and a push plate; the linear driver is arranged on the mounting frame; the push plate is in transmission connection with the driving end of the linear driver.
Preferably, the linear drive assembly comprises a rotary drive, a screw, a sleeve and a timing belt; the rotary driver is arranged on the frame; the screw is rotatably arranged on the guide rail and is in threaded connection with the sliding block; the two sleeves are respectively sleeved on the driving end of the rotary driver and the screw rod; the two sides of the synchronous belt are respectively connected with the two sleeves in a bridging way.
The machine vision-based decorative plate flatness detection method comprises the following steps:
s1, starting a belt conveyor;
s2, attaching the film on the surface of the plate through a film covering assembly;
s3, shooting the upper surface of the plate through an industrial camera, and feeding back image information to a controller;
s4, analyzing the flatness of the plates according to the images, and storing the plates in a classified mode according to the detection result.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the function of automatically detecting the surface flatness of the plate is realized through the belt conveyor, the film covering device and the visual detection module, the effect of exposing the concave-convex condition of the plate surface is achieved by attaching the transparent film on the plate surface, so that the surface flatness of the plate is rapidly and accurately judged, and the problems that the operation steps of the traditional plate detection device are complicated and the traditional plate detection device is easy to misjudge are solved;
2. according to the invention, the film coating on the surface of the plate is realized through the third bracket, the first elastic piece, the mounting seat, the mounting shaft and the pressing roller, and the effects of flattening the film and removing redundant bubbles are achieved through the downward pressing of the pressing roller, so that the condition of false detection is avoided;
3. according to the invention, the film can be automatically fixed at the front end of the plate through the abutting component, so that the film can be tightened when the film is coated on the plate, and meanwhile, the function of automatically cutting the film after the film coating is finished is realized through the mounting frame, the cutting knife and the auxiliary control device.
Drawings
FIG. 1 is a schematic perspective view of a machine vision-based intelligent decorative board flatness detection device;
FIG. 2 is a schematic perspective view of a film laminating device, a visual detection module, a cutting device and an auxiliary control device in the intelligent decorative plate flatness detection device based on machine vision when the intelligent decorative plate flatness detection device is matched with a plate;
FIG. 3 is a schematic perspective view of a film laminating device, a cutting device and an auxiliary control device in the intelligent decorative plate flatness detection device based on machine vision;
FIG. 4 is a schematic perspective view of a linear drive assembly, a laminating device, a cutting device and an auxiliary control device in the intelligent decorative plate flatness detection device based on machine vision;
FIG. 5 is an enlarged partial schematic view at A in FIG. 4;
FIG. 6 is an enlarged partial schematic view at B in FIG. 4;
FIG. 7 is a schematic perspective view of an auxiliary control device in the intelligent decorative board flatness detection device based on machine vision;
FIG. 8 is a schematic perspective view of a cross-section of an auxiliary control device in the intelligent detection device for flatness of decorative boards based on machine vision;
FIG. 9 is an enlarged partial schematic view at C in FIG. 8;
fig. 10 is a schematic perspective view of a film laminating device in the intelligent decorative board flatness detection device based on machine vision.
The reference numerals in the figures are: 1-a belt conveyor; 11-a frame; 2-a film covering device; 21-a first scaffold; 22-a charging barrel; 221-film; 23-a film-covered component; 231-a third rack; 232-a first elastic member; 233-mount; 234-mounting a shaft; 235-a press roll; 3-a visual detection module; 31-a second bracket; 32-an industrial camera; 4-a cutting device; 41-an abutment assembly; 411-rail; 412-a slider; 413-mounting blocks; 4131 oblique bump; 414—an abutment plate; 415-a third elastic member; 416-a pressure sensor; 42-mounting frame; 43-cutting knife; 431-mounting bar; 432-cutting part; 44-a linear drive assembly; 441-a rotary drive; 442-screw; 443-sleeve; 444-synchronous belt; 5-auxiliary control means; 51-an elastic connection assembly; 511-control block; 5111-locking groove; 512-telescoping rod; 513-a fourth elastic member; 52-a locking assembly; 521-locking blocks; 522-a connection plate; 523-a fifth elastic member; 53-a control assembly; 531-chute; 532-fixed block; 54-reset component; 541-a linear drive; 542-push plate; 6-plate material.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1-3: the intelligent detection device for the flatness of the decorative plate based on machine vision is arranged on a frame 11 of a belt conveyor 1, and comprises a film covering device 2 and a visual detection module 3, wherein the film covering device 2 comprises a first bracket 21, a charging barrel 22 and a film covering component 23; the first bracket 21 is mounted on the frame 11; the charging barrel 22 is rotatably installed on the first bracket 21, and a transparent film 221 is wound on the charging barrel 22; the film covering component 23 is arranged on the frame 11, and when the plate 6 passes through the film covering component 23 in a working state, the film covering component 23 is attached with a layer of transparent film 221 on the surface of the plate 6; the visual detection module 3 comprises a second bracket 31 and an industrial camera 32; the second bracket 31 is mounted on the frame 11; the industrial camera 32 is mounted on the second bracket 31.
According to the invention, the function of automatically detecting the surface flatness of the plate 6 is realized through the belt conveyor 1, the film covering device 2 and the visual detection module 3, the effect of exposing the concave-convex condition of the surface of the plate 6 is achieved by attaching the transparent film 221 on the surface of the plate 6, so that the surface flatness of the plate 6 is rapidly and accurately judged, and the problems that the operation steps of the traditional plate 6 visual detection module 3 are complex and misjudgment is easy are solved. The belt conveyor 1 and the industrial camera 32 are electrically connected with the controller; the operator places the plate 6 on the driving belt of the belt conveyor 1, then conveys the plate 6 through the belt conveyor 1, when the plate 6 moves to the film covering assembly 23, a transparent film 221 is attached to the surface of the plate 6 through the film covering assembly 23, then the plate 6 continues to move, when the plate moves to the second bracket 31, the industrial camera 32 shoots the surface condition of the plate 6, and transmits the image to the controller, when the surface of the plate 6 is concave-convex, the film 221 cannot be completely attached to the surface of the plate 6 at concave points or convex points, refraction occurs when light passes through the film 221, so that the image is blurred, a blurred white ring appears around the convex points, white blurred circular spots appear at the concave points, and the flatness of the plate 6 is rapidly judged by identifying the blurred condition of the image.
Referring to fig. 2 and 3: the film covering assembly 23 comprises a third bracket 231, a first elastic piece 232, a mounting seat 233, a mounting shaft 234 and a pressing roller 235; the third bracket 231 is mounted on the frame 11; the mounting seats 233 are provided with two; the first elastic piece 232 is at least provided with two and is respectively arranged on the two mounting seats 233, and two ends of the first elastic piece 232 are respectively connected with the third bracket 231 and the mounting seats 233; two ends of the mounting shaft 234 are respectively and rotatably connected with the two mounting seats 233; the press roller 235 is sleeved on the mounting shaft 234, and one end of the transparent film 221 wound on the cylinder 22 is bridged on the press roller 235.
According to the invention, the film coating on the surface of the plate 6 is realized through the third bracket 231, the first elastic piece 232, the mounting seat 233, the mounting shaft 234 and the pressing roller 235, and the effects of flattening the film 221 and removing redundant bubbles are achieved through the pressing of the pressing roller 235, so that the condition of false detection is avoided. The first elastic member 232 is preferably a nitrogen spring, an operator places the plate 6 on a driving belt of the belt conveyor 1, then transports the plate 6 through the belt conveyor 1, the plate 6 contacts with the pressing roller 235 when moving to the third bracket 231, then presses the pressing roller 235, the first elastic member 232 is contracted under the action of pressure, and then drives the mounting shaft 234 and the mounting seat 233 to move upwards, the pressing roller 235 is in tight fit with the upper surface of the plate 6 under the action of the elastic force of the first elastic member 232, the plate 6 continues to move along with the continuous pushing of the driving belt, the pressing roller 235 and the plate 6 relatively move, a layer of transparent film 221 is attached to the surface of the plate 6, excessive bubbles are removed through the pressing of the pressing roller 235, the detection of the surface flatness of the plate 6 is prevented from being influenced by the bubbles, then the plate 6 continues to move, when the plate 6 moves to the second bracket 31, the industrial camera 32 shoots the surface condition of the plate 6, and the image is transmitted to the controller, and the flatness of the plate 6 is judged according to the image information.
Referring to fig. 2 and 3: the frame 11 is also provided with a cutting device 4, and the cutting device 4 comprises an abutting component 41, a mounting frame 42 and a cutting knife 43; the abutment assembly 41 is provided on the frame 11 and is used for fixing one end of the transparent film 221 on the plate 6; the mounting frame 42 is mounted on a mounting shaft 234; the cutter 43 is slidably mounted on the mounting frame 42; the mounting frame 42 is also provided with an auxiliary control device 5 for controlling the movement of the cutter 43.
The invention realizes the function of automatically cutting the film 221 after the film coating is completed through the abutting component 41, the mounting frame 42, the cutting knife 43 and the auxiliary control device 5. The cutter 43 includes a mounting bar 431 and a cutting part 432, after the visual inspection module 3 is started, the driving belt controls the plate 6 to move, the plate 6 is fixed at the front end of the plate 6 through the abutting component 41 when moving to the third bracket 231, then the plate 6 extrudes the press roller 235 to push the press roller 235 to move upwards along the vertical direction against the elastic force of the first elastic member 232, the transparent film 221 is attached to the surface of the plate 6 under the elastic force of the first elastic member 232, after the plate 6 completely passes through the press roller 235, the film is covered, the press roller 235 is reset under the elastic force of the first elastic member 232, the mounting shaft 234 drives the mounting frame 42 to move, then the plate 6 passes through the second bracket 31, the surface condition of the plate 6 is shot by the industrial camera 32 on the second bracket 31, an image is transmitted to the controller, after the detection is finished, the cutter 43 is controlled to move downwards along the vertical direction by the auxiliary control device 5, the film 221 is cut by the cutting part 432, then the film 6 is removed by the mechanical arm, the film 6 is covered, the mechanical arm is not covered, and the result is not shown in the detection, and the result is saved according to the detection. When the mounting strip 431 is tightly matched with the driving belt, a gap is formed between the cutting part 432 and the driving belt, so that the cutting knife 43 is prevented from damaging the driving belt.
Referring to fig. 3-5: the abutment assembly 41 includes a guide rail 411, a slider 412, a mounting block 413, an abutment plate 414, a third elastic member 415, and a pressure sensor 416; the guide rail 411 is mounted on the frame 11; the slider 412 and the mounting block 413 are slidably mounted on the guide rail 411; the abutment plate 414 is mounted on the mounting block 413; both ends of the third elastic member 415 are connected to the slider 412 and the pressure sensor 416, respectively; the pressure sensor 416 is mounted on the mounting block 413; the frame 11 is provided with a linear drive assembly 44 for controlling the movement of the slider 412 along the guide rail 411.
The invention realizes the function of fixing the film 221 on the plate 6 through the guide rail 411, the slide block 412, the mounting block 413, the abutting plate 414, the third elastic piece 415, the pressure sensor 416 and the linear driving assembly 44, and achieves the effect of keeping the film 221 taut while laminating. The pressure sensor 416 and the linear drive assembly 44 are electrically connected to the controller; after the vision detecting module 3 is started, the driving belt controls the plate 6 to move, when the plate 6 moves to the third support 231, the plate 6 is abutted against the abutting plate 414 and pushes the abutting plate 414, the third elastic piece 415 is compressed by pressure, the elasticity is increased, the pressure sensor 416 senses the pressure increase, a feedback signal is sent to the controller, the controller sends a signal to the linear driving assembly 44, after receiving the signal, the linear driving assembly 44 controls the sliding block 412 to move in the direction away from the mounting block 413, the mounting block 413 and the abutting plate 414 move under the pushing of the plate 6, the elasticity of the third elastic piece 415 is kept in a specified range, the film 221 is further pressed on the front end of the plate 6 through the abutting plate 414, then the film 221 is pressed on the upper surface of the plate 6 through the pressing roller 235, the film covering is completed after the plate 6 completely passes through the pressing roller 235, the pressing roller 235 resets under the elastic action of the first elastic piece 232, the mounting shaft 234 drives the mounting frame 42 to move, then the plate 6 passes through the second support 31, the surface condition of the plate 6 is shot through the industrial camera 32 on the second support 31, an image is transmitted to the controller, the image is judged according to the image information, the flatness of the plate 6 is judged, the film 221 is detected, the film is cut through the auxiliary device is cut, and then the film is cut by the machine is cut according to the direction is cut, and the cut by the machine is cut, and the film is cut by the auxiliary device 5, and the cut film is cut by the machine 43 is finished according to the result is cut.
Referring to fig. 2, 7, 8 and 10: the auxiliary control device 5 comprises an elastic connection assembly 51, a locking assembly 52, a control assembly 53 and a reset assembly 54; the elastic connection assembly 51 includes a control block 511, a telescopic rod 512, and a fourth elastic member 513; the control block 511 is slidably mounted on the mounting frame 42 and is connected to the cutter 43; two ends of the telescopic rod 512 are respectively connected with the mounting frame 42 and the control block 511; both ends of the fourth elastic member 513 are connected to the mounting frame 42 and the control block 511, respectively; a locking assembly 52 is provided on the mounting frame 42 and is used to secure the control block 511; the control component 53 is arranged on the frame 11 and is used for controlling the locking component 52 to be opened and closed; a reset component 54 is provided on the mounting frame 42 and is used for driving the control block 511 to reset; the mounting block 413 is provided with an inclined projection 4131, and a gap for the cutter 43 to pass through is provided between the abutting plate 414 and the belt on the belt conveyor 1.
The invention realizes the function of controlling the movement of the cutter 43 through the elastic connecting component 51, the locking component 52, the control component 53 and the reset component 54. The mounting block 413 is provided with an inclined lug 4131, and the reset component 54 is electrically connected with the controller; after the flatness detection of the plate 6 is completed, an operator releases the fixing of the locking component 52 to the control block 511 through the control component 53, the control block 511 descends under the elastic action of the fourth elastic component 513, the control block 511 drives the cutting knife 43 to move downwards along the vertical direction, the film 221 is cut through the cutting part 432, then the plate 6 with the film stuck is taken down through the manipulator, and the plate 6 is classified and stored according to the detection result. And finally, the linear driving assembly 44 controls the sliding block 412 to reset, the sliding block 412 pushes the mounting block 413 to move, the mounting block 413 drives the abutting plate 414 to reset, the inclined lug 4131 presses the mounting seat 233 along with the approaching of the mounting block 413 and the mounting seat 233, the elastic force of the first elastic piece 232 is overcome to control the mounting seat 233 to move upwards, the pressing roller 235 moves to the upper side of the abutting plate 414, meanwhile, the cutting knife 43 is kept in a pressing state under the elastic force of the fourth elastic piece 513 after being pressed down, the film 221 is pressed on the conveyor belt by the mounting strip 431, and the abutting plate 414 pushes the film 221 through the cutting knife 43 when being reset, so that the film 221 is attached to the abutting plate 414, and the film 221 can be attached to the plate 6 when the plate 6 reaches the abutting plate 414.
Referring to fig. 7-9: the locking assembly 52 includes a locking block 521, a connecting plate 522, and a fifth elastic member 523; the locking block 521 is slidably mounted on the mounting frame 42; the connecting plate 522 is fixedly connected with the locking block 521; both ends of the fifth elastic member 523 are connected to the connection plate 522 and the mounting frame 42, respectively; the control block 511 is provided with a locking groove 5111 which is in plug-in fit with the locking block 521.
The present invention realizes the function of the fixed control block 511 by the locking block 521, the connection plate 522, the fifth elastic member 523, and the locking groove 5111. After the flatness detection of the plate 6 is completed, an operator controls the locking block 521 to move in a direction away from the control block 511 through the control component 53, so that the locking block 521 is separated from the locking groove 5111, the locking component 52 is released from fixing the control block 511, the control block 511 descends under the elastic action of the fourth elastic piece 513, the control block 511 drives the cutting knife 43 to move downwards in the vertical direction, the film 221 is cut through the cutting part 432, and then the plate 6 with the film adhered is taken down through the mechanical arm and stored in a classified mode according to the detection result. Finally, the linear driving assembly 44 controls the sliding block 412 to reset, the sliding block 412 pushes the mounting block 413 to move, the mounting block 413 drives the abutting plate 414 to reset, the inclined lug 4131 presses the mounting seat 233 along with the approach of the mounting block 413 and the mounting seat 233, the mounting seat 233 is controlled to move upwards by overcoming the elastic force of the first elastic piece 232, and the pressing roller 235 moves to the position above the abutting plate 414 to finish resetting.
Referring to fig. 7-9: the control assembly 53 includes a fixed block 532; the fixed block 532 is mounted on the frame 11; the locking block 521 is provided with a chute 531; when the fixing block 532 contacts the locking block 521 during the descent of the mounting frame 42, the fixing block 532 abuts the chute 531 and pushes the locking block 521 to move away from the locking groove 5111 against the elastic force of the fifth elastic member 523.
The present invention realizes the function of automatically controlling the movement of the locking block 521 when the mounting frame 42 descends through the chute 531 and the fixed block 532. In the film coating process, when the press roller 235 is completely separated from the plate 6, the film coating is completed, the extrusion of the plate 6 is lost, the press roller 235 and the mounting seat 233 further move downwards under the action of the elastic force of the first elastic piece 232, when the locking piece 521 is contacted with the fixed piece 532, the fixed piece 532 extrudes the chute 531 formed on the locking piece 521, the elastic force of the fifth elastic piece 523 is overcome to control the locking piece 521 to move in the direction away from the control piece 511, the locking piece 521 is separated from the locking groove 5111, the fixation of the locking assembly 52 to the control piece 511 is released, the control piece 511 descends under the elastic force of the fourth elastic piece 513, the control piece 511 drives the cutting knife 43 to move downwards in the vertical direction, the film 221 is cut through the cutting part 432, and meanwhile, after the mounting strip 431 of the cutting knife 43 contacts with the driving belt, the elastic force of the fourth elastic piece 513 pushes the mounting frame 42 to ascend, and then the mounting shaft 234 and the mounting seat 233 are pushed through the mounting frame 42.
Referring to fig. 3 and 7: reset assembly 54 includes linear drive 541 and push plate 542; the linear actuator 541 is mounted on the mounting frame 42; push plate 542 is drivingly coupled to the drive end of linear drive 541.
The present invention implements the reset function of the drive control block 511 through the linear driver 541 and the push plate 542. The linear driver 541 is preferably a linear cylinder, and the linear driver 541 is electrically connected to the controller; after finishing the tectorial membrane, carry out the roughness through vision detection module 3 and detect the completion after, need not to take off film 221, film 221 can protect the surface of panel 6 in the transportation of panel 6, avoid panel 6 impaired in the transportation, put the panel 6 classification of detecting the completion after, it resets to control butt joint board 414 through sharp drive assembly 44 earlier, the rethread controller sends to sharp driver 541, sharp driver 541 control push pedal 542 rises, promote control block 511 through push pedal 542 and reset, and then drive cutter 43 through control block 511 and reset.
Referring to fig. 2, 4 and 6: the linear drive assembly 44 includes a rotary drive 441, a screw 442, a sleeve 443, and a timing belt 444; the rotary drive 441 is mounted on the frame 11; screw 442 is rotatably mounted on rail 411 and is in threaded connection with slider 412; the two sleeves 443 are respectively sleeved on the driving end of the rotary driver 441 and the screw 442; the timing belt 444 is connected across the two sleeves 443 on both sides.
The invention realizes the function of driving the sliding block 412 to move through the rotary driver 441, the screw 442, the sleeve 443 and the synchronous belt 444. The rotary driver 441 is preferably a servo motor, and the servo motor is electrically connected with the controller; after the vision detecting module 3 is started, the driving belt controls the plate 6 to move, when the plate 6 moves to the third support 231, the plate 6 is abutted against the abutting plate 414 and pushes the abutting plate 414, the third elastic piece 415 is compressed by pressure, the elastic force is increased, the pressure sensor 416 senses the pressure increase, a feedback signal is sent to the controller, the controller sends a signal to the rotary driver 441, the rotary driver 441 receives the signal and drives the screw 442 to rotate, the screw 442 drives the sliding block 412 in threaded connection with the screw 442 to move in a direction away from the mounting block 413, the mounting block 413 and the abutting plate 414 move under the pushing of the plate 6, the elastic force of the third elastic piece 415 is kept in a specified range, the film 221 is pressed on the front end of the plate 6 through the abutting plate 414, and the film 221 is kept tight. After the detection is completed, the controller sends a signal to the rotary driver 441 again, the rotary driver 441 drives the screw rod 442 to rotate, the screw rod 442 drives the sliding block 412 in threaded connection with the screw rod 442 to move along the guide rail 411, the sliding block 412 pushes the mounting block 413 to reset through the elastic force of the third elastic piece 415, and the mounting block 413 drives the abutting plate 414 to reset.
Referring to fig. 1-3: the machine vision-based decorative plate flatness detection method comprises the following steps:
s1, starting a belt conveyor 1;
s2, attaching the film 221 to the surface of the plate 6 through a film covering assembly 23;
s3, shooting the upper surface of the plate 6 through an industrial camera 32, and feeding back image information to a controller;
s4, analyzing the flatness of the plates 6 according to the images, and storing the plates 6 in a classified mode according to the detection result.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (7)
1. The intelligent detection device for the flatness of the decorative plate based on machine vision is arranged on a frame (11) of a belt conveyor (1), and is characterized by comprising a film coating device (2) and a visual detection module (3), wherein the film coating device (2) comprises a first bracket (21), a charging barrel (22) and a film coating component (23);
the first bracket (21) is arranged on the frame (11);
the charging barrel (22) is rotatably arranged on the first bracket (21), and a transparent film (221) is wound on the charging barrel (22);
the film covering component (23) is arranged on the frame (11), and when the plate (6) passes through the film covering component (23) in a working state, the film covering component (23) is attached with a layer of transparent film (221) on the surface of the plate (6);
the visual detection module (3) comprises a second bracket (31) and an industrial camera (32);
the second bracket (31) is arranged on the frame (11);
the industrial camera (32) is arranged on the second bracket (31), and the industrial camera (32) is electrically connected with the controller;
the industrial camera (32) shoots the surface condition of the plate (6) and transmits an image to the controller, when the surface of the plate (6) is concave-convex, the film (221) cannot be completely attached to the surface of the plate (6) at concave points or convex points, light rays are refracted when passing through the film (221), so that the image is blurred, a blurred white circle appears around the convex points, white blurred circular spots appear at the concave points, and the flatness of the plate (6) is rapidly judged by identifying the blurred condition of the image;
the film covering assembly (23) comprises a third bracket (231), a first elastic piece (232), a mounting seat (233), a mounting shaft (234) and a pressing roller (235);
the third bracket (231) is arranged on the frame (11);
the two mounting seats (233) are arranged;
the first elastic piece (232) is at least provided with two and is respectively arranged on the two mounting seats (233), and two ends of the first elastic piece (232) are respectively connected with the third bracket (231) and the mounting seats (233);
two ends of the mounting shaft (234) are respectively connected with the two mounting seats (233) in a rotating way;
the press roller (235) is sleeved on the installation shaft (234), and one end of the film (221) wound on the charging barrel (22) is connected with the press roller (235) in a bridging way;
the frame (11) is also provided with a cutting device (4), and the cutting device (4) comprises an abutting component (41), a mounting frame (42) and a cutting knife (43);
an abutment assembly (41) is arranged on the frame (11) and is used for fixing one end of the film (221) on the plate (6);
the mounting frame (42) is mounted on the mounting shaft (234);
the cutting knife (43) is slidably arranged on the mounting frame (42);
an auxiliary control device (5) for controlling the movement of the cutting knife (43) is also arranged on the mounting frame (42);
the abutting assembly (41) comprises a guide rail (411), a sliding block (412), a mounting block (413), an abutting plate (414), a third elastic piece (415) and a pressure sensor (416);
the guide rail (411) is arranged on the frame (11);
the sliding block (412) and the mounting block (413) are slidably mounted on the guide rail (411);
the abutting plate (414) is mounted on the mounting block (413);
both ends of the third elastic piece (415) are respectively connected with the sliding block (412) and the pressure sensor (416);
the pressure sensor (416) is arranged on the mounting block (413);
the frame (11) is provided with a linear driving assembly (44) for controlling the sliding block (412) to move along the guide rail (411).
2. The intelligent machine vision-based decorative board flatness detection device according to claim 1, wherein the auxiliary control device (5) comprises an elastic connection component (51), a locking component (52), a control component (53) and a reset component (54);
the elastic connecting component (51) comprises a control block (511), a telescopic rod (512) and a fourth elastic piece (513);
the control block (511) is slidably mounted on the mounting frame (42) and the control block (511) is connected with the cutter (43);
two ends of the telescopic rod (512) are respectively connected with the mounting frame (42) and the control block (511);
both ends of the fourth elastic piece (513) are respectively connected with the mounting frame (42) and the control block (511);
the locking component (52) is arranged on the mounting frame (42), and the locking component (52) is used for fixing the control block (511);
the control component (53) is arranged on the frame (11) and is used for controlling the locking component (52) to be opened and closed;
the reset component (54) is arranged on the mounting frame (42) and is used for driving the control block (511) to reset;
the mounting block (413) is provided with an inclined lug (4131), and a gap for the cutting knife (43) to pass through is arranged between the abutting plate (414) and the driving belt on the belt conveyor (1).
3. The intelligent machine vision-based decorative board flatness detection device of claim 2, wherein the locking assembly (52) comprises a locking block (521), a connecting plate (522), and a fifth elastic member (523);
the locking block (521) is slidably arranged on the mounting frame (42);
the connecting plate (522) is fixedly connected with the locking block (521);
both ends of the fifth elastic piece (523) are respectively connected with the connecting plate (522) and the mounting frame (42);
the control block (511) is provided with a locking groove (5111) which is in plug-in fit with the locking block (521).
4. The intelligent machine vision-based decorative sheet flatness detection device of claim 2, wherein the control assembly (53) comprises a fixed block (532);
the fixed block (532) is arranged on the frame (11);
the locking block (521) is provided with a chute (531);
when the fixing block (532) is contacted with the locking block (521) in the descending process of the mounting frame (42), the fixing block (532) can be abutted with the chute (531) and push the locking block (521) to move away from the locking groove (5111) against the elastic force of the fifth elastic piece (523).
5. The intelligent machine vision-based decorative sheet flatness detection device of claim 2, wherein the reset assembly (54) comprises a linear drive (541) and a push plate (542);
the linear driver (541) is mounted on the mounting frame (42);
the push plate (542) is in transmission connection with the driving end of the linear driver (541).
6. The intelligent machine vision-based decorative board flatness detection device of claim 1, wherein the linear driving assembly (44) comprises a rotary driver (441), a screw (442), a sleeve (443), and a timing belt (444);
the rotary driver (441) is mounted on the frame (11);
the screw rod (442) is rotatably arranged on the guide rail (411) and is in threaded connection with the sliding block (412);
the two sleeves (443) are respectively sleeved on the driving end of the rotary driver (441) and the screw rod (442);
the two sides of the synchronous belt (444) are respectively connected with the two sleeves (443) in a bridging way.
7. The machine vision-based decorative plate flatness detection method using the machine vision-based decorative plate flatness intelligent detection device according to any one of claims 1 to 6, characterized by comprising the steps of:
s1, starting a belt conveyor (1);
s2, attaching a film (221) on the surface of the plate (6) through a film covering assembly (23);
s3, shooting the upper surface of the plate (6) through an industrial camera (32), and feeding back image information to a controller;
s4, analyzing the flatness of the plate (6) according to the image, and classifying and storing the plate (6) according to the detection result.
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|---|---|---|---|
| CN202311479886.8A CN117213411B (en) | 2023-11-08 | 2023-11-08 | Intelligent decorative plate flatness detection device and detection method based on machine vision |
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| CN202311479886.8A CN117213411B (en) | 2023-11-08 | 2023-11-08 | Intelligent decorative plate flatness detection device and detection method based on machine vision |
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| CN117213411A (en) | 2023-12-12 |
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