CN115980064A - Leather surface defect intelligent detection device and detection method based on image recognition - Google Patents
Leather surface defect intelligent detection device and detection method based on image recognition Download PDFInfo
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Abstract
The invention discloses an intelligent leather surface defect detection device and method based on image recognition, and the device comprises a base, wherein a plurality of support stand columns are arranged at the edge of the top of the base; the top end of the supporting bottom plate is provided with three driving boxes, a double-head threaded rod penetrates through the driving boxes, and a driving mechanism is sleeved in the middle of the double-head threaded rod; a computer mainframe box and a top plate are arranged between the tops of the supporting stand columns respectively, six suspension plates are arranged at the bottom of the top plate, and a circulation detection mechanism is arranged between the bottoms of the suspension plates. The upper and lower groups of camera detection modules are arranged, so that the upper and lower surfaces of the leather can be synchronously detected and identified, and the comprehensiveness and accuracy of defect detection are improved; the cooperation is automatic electromagnetic clamp and actuating mechanism etc. of centre gripping, guarantees the dependence planarization of leather in the testing process.
Description
Technical Field
The invention relates to the technical field of leather detection, in particular to an intelligent leather surface defect detection device and method based on image recognition.
Background
At present, with the sustainable development of economy in China, industries such as shoes, bags, automobile seats, sofas and the like are gradually connected with the world, and the defect detection of leather becomes an important component of a leather processing production chain. Generally, leather materials have natural defects such as scratches, stains and the like, and the surface defects are not difficult to detect, belong to dominant defects and have high recognition degree in the leather product industry.
Currently, there are two ways for detecting defects in leather. The utility model provides a be artifical the detection, the measurement personnel is put into the leather and is detected the mesa, through stirring the leather with the visual observation, mark leather surface and back defect, and mark back defect is then through marking back defect with finger jack-up, artifical visual detection efficiency is very low, consuming time again consumes power, and easy formation is with eye fatigue, especially when the leather area is great, is difficult to guarantee monoblock leather detection efficiency, easy hourglass is examined.
The other type is that intelligent defect detection equipment is used for replacing human eyes to detect, a detector puts leather into a detection table board, a linear array camera and a linear LED light source in the equipment are used for photographing surface defects of the leather, and an algorithm is used for identification.
Patent No. CN112858336A discloses leather surface defect detection equipment, and this detection equipment passes through the location and the classification of image acquisition subassembly to the leather defect, realizes the automation of detection flow through straining device and slide mechanism's cooperation, has solved the problem that leather defect detection process brought among the correlation technique, has improved the quality and the efficiency of leather products in manufacturing. However, the detection device also has certain defects, for example, the detection device cannot simultaneously detect two sides of leather, so that the detection efficiency is low, and meanwhile, the automation and intelligence degree of the device is low, so that the efficiency is low when a large amount of continuous leather is detected.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides an intelligent detection device and a detection method for leather surface defects based on image recognition, so as to overcome the technical problems in the prior art.
Therefore, the invention adopts the following specific technical scheme:
according to one aspect of the invention, the leather surface defect intelligent detection device based on image recognition is provided, and comprises a base, wherein a plurality of supporting stand columns are arranged at the edge of the top of the base, an operation panel is arranged at the top of the front side of the base, compression roller mechanisms are arranged at two ends of the top of the base, a supporting bottom plate is arranged at the middle position of the top of the base, and side plates are arranged on the front side and the back side of the top of the base; the top end of the supporting bottom plate is provided with three driving boxes, a double-head threaded rod penetrates through the driving boxes, and a driving mechanism is sleeved in the middle of the double-head threaded rod; a computer mainframe box and a top plate are arranged between the tops of the supporting stand columns respectively, six suspension plates are arranged at the bottom of the top plate, and a circulation detection mechanism is arranged between the bottoms of the suspension plates.
Furthermore, in order to flatten and position the leather and realize automatic feeding and discharging of the leather, the compression roller mechanism comprises two support frames arranged at the top of one end of the base, two driving compression rollers are arranged between the two support frames, a compression roller transmission box is arranged outside one of the support frames, a compression roller motor is arranged at the bottom of the compression roller transmission box, two ends of each driving compression roller are respectively provided with a connecting frame in a sleeved mode, a positioning roller is arranged between one ends, close to the base, of the connecting frames, and two feeding rollers are arranged between the other ends of the connecting frames; two link symmetry each other and be the triangle-shaped structure that lie in the homonymy, link and drive pinch roll keep swing joint.
Furthermore, in order to realize the installation and fixation of the electromagnetic clamps and realize the adjustment of the distance between the two electromagnetic clamps through the double-threaded rod, leather with different specifications is effectively clamped and tensioned, two sides of the double-threaded rod are respectively sleeved with a movable internal thread sleeve in threaded fit with the double-threaded rod, two ends of the double-threaded rod are respectively provided with an end surface fixing plate and are kept in movable connection, two side limiting strips are arranged between two sides of the driving box and the end surface fixing plates, and the side limiting strips penetrate through the movable internal thread sleeves and are kept in movable connection; the top of the movable internal thread sleeve is provided with a supporting rod, and the top of the supporting rod is provided with an electromagnetic clamp.
Furthermore, in order to ensure that the driving box can be in high-strength butt joint with the supporting bottom plate, the stability of the driving box in the operation process is improved, and the deviation in the movement process is avoided, bottom supporting bars are arranged on two sides of the bottom of the driving box, a driving groove is formed in the middle position of the bottom of the driving box, supporting sliding grooves matched with the bottom supporting bars are formed in two sides of the top of the supporting bottom plate, and a driving rack matched with the driving groove is arranged in the middle position of the top of the supporting bottom plate; the inner side of the side plate is provided with a side supporting groove matched with the end surface fixing plate.
Further, in order to be able to identify and detect the lower surface of the leather, the area of the detection area is increased through the wide-angle camera, the top end of the driving box in the middle is provided with a lens carrying support, the top end of the lens carrying support is provided with a lens carrying holder, the two sides of the top of the lens carrying holder are provided with the wide-angle camera, and the middle position of the top of the lens carrying holder is provided with a light supplementing lamp.
Furthermore, in order to realize the directional movement of the driving box by the meshing of the driving gear and the driving rack, the electric cylinder drives the connecting frame to move so as to change the driving mode of the end face gear, thereby realizing the mode change of the movement of the driving box or the distance adjustment of the electromagnetic clamp, fixing seats are arranged at the bottom in the driving box and positioned at two sides of the driving groove, the driving mechanism comprises a driving gear which is sleeved at the middle position of the double-end threaded rod and positioned between the two fixing seats, and the driving gear is meshed with the driving rack; a driving sleeve is arranged on one side of the driving gear and is inserted into the other side of one of the fixed seats, a first sliding gear is sleeved on the outer side of the circumference of the driving sleeve, and a first cross-shaped driving strip clamped with the inner side of the circumference of the first sliding gear is arranged on the outer side of the circumference of the driving sleeve; a second sliding gear is sleeved on one side, away from the other fixed seat, of the double-end threaded rod, and a second cross-shaped driving strip clamped with the inner side of the second sliding gear is arranged on the outer side of the circumference of the double-end threaded rod; end face toothed rings are arranged on the inner sides of the first sliding gear and the second sliding gear, and limiting toothed rings matched with the end face toothed rings are arranged on the outer sides of the fixing seats; a connecting frame is sleeved on the outer sides of the first sliding gear and the second sliding gear and keeps movable connection, and electric cylinders are arranged between two sides of one end of the connecting frame and the inner side wall of the driving box; the top in the drive box is provided with an end face gear matched with the first sliding gear and the second sliding gear, and the top of the drive box is provided with a drive motor matched with the end face gear.
Furthermore, in order to avoid the face gear to drive the first sliding gear and the second sliding gear simultaneously and prevent the two gears from being blocked, the distance between the first sliding gear and the second sliding gear is kept fixed and is smaller than the diameter of the face gear.
Furthermore, in order to realize the circular reciprocating motion of the bottom matrix camera set, comprehensively detect and identify the upper surface of the leather and improve the identification precision, the circular detection mechanism comprises fixed pulleys which are arranged at the inner side of the bottom of the suspension plate and are movably connected, a transmission belt is sleeved at the outer sides of the fixed pulleys at the same side, fixed inner plates are arranged between the inner sides of the fixed pulleys at the same side and are movably connected, a circular motion column is arranged between the two fixed inner plates, a camera support is arranged at the bottom of the circular motion column, and the bottom end of the camera support is provided with the matrix camera set; a linkage column is arranged on the inner side of the transmission belt, and a linkage sleeve is arranged between the linkage column and the circulating motion column; an anti-rotation ejector rod is arranged between the suspension plates on the two sides, and an anti-rotation upright rod matched with the anti-rotation ejector rod is arranged at the top end of the circular motion column; and a circulating motor matched with the fixed pulley is arranged on the outer side of the suspension plate at one end.
Furthermore, in order to realize stable connection among a plurality of structures, avoid the structure not hard up to drop, improve the stability of device, fixed pulley is the I-shaped structure, and the mutual joint of drive belt inner wall and fixed pulley, fixed pulley outside centre of a circle position is connected through T font cylinder with fixed inner panel inboard, and the spout that the width equals with the cyclic motion post diameter is seted up in the fixed inner panel outside.
According to another aspect of the invention, the invention also provides an intelligent detection method for the leather surface defects based on image recognition, which comprises the following steps:
s1, placing a leather finished product to be detected into a compression roller mechanism, and positioning and flattening;
s2, allowing the leather to be detected to enter the device, controlling an electromagnetic clamp at the farthest end to clamp one end of the leather at first, and moving towards two sides to tension the leather;
s3, the leather sequentially enters the device, the second electromagnetic clamp and the third electromagnetic clamp the middle part and the tail part of the leather and move towards two sides to tension the leather;
s4, the three driving cassettes move the leather in the electromagnetic clamp to the detection area and finally stop under the circulating detection mechanism;
s5, driving a circulating detection mechanism to shoot the surface of the leather, loosening an electromagnetic clamp at the middle position, and driving a wide-angle camera to move by a driving box to detect the bottom of the leather;
s6, acquiring image data of the matrix camera set and the wide-angle camera, and uploading the image data;
and S7, performing image recognition operation and defect detection through the computer mainframe, and outputting a final detection result.
The invention has the beneficial effects that:
1. the upper and lower groups of camera detection modules are arranged, so that the upper and lower surfaces of the leather can be synchronously detected and identified, and the comprehensiveness and accuracy of defect detection are improved; electromagnetic clamp and actuating mechanism etc. of cooperation automatic clamping can carry out automatic feed and centre gripping tensioning to the leather to guarantee the leather in the planarization of relying on of testing process, improve the effect that detects by a wide margin when the automatic device of improvement is automatic.
2. Through setting up the compression roller mechanism who possesses the locate function that flattens, can realize the automatic feed and the ejection of compact of leather, the degree of automation of improving the device guarantees the planarization of leather itself simultaneously, and carries out the cleanness of certain degree to the leather surface, reduces the influence of filth to the defect recognition result.
3. By arranging the driving mechanism, the movement of the driving box and the distance adjustment of the electromagnetic clamp can be realized through a single driving motor, the intelligent degree of the device is improved, the operation is simple and flexible, the leather with different specifications and sizes can be clamped, tensioned and fixed, and the practicability of the device is greatly improved; meanwhile, the circulating detection mechanism which automatically reciprocates is matched, so that the depth detection can be carried out on the upper surface of the leather, and the detection precision is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic front structural diagram of an intelligent detection device for leather surface defects based on image recognition according to an embodiment of the invention;
FIG. 2 is a bottom view of an intelligent leather surface defect detection device based on image recognition according to an embodiment of the present invention;
FIG. 3 is a partial cross-sectional view of an intelligent leather surface defect detection apparatus based on image recognition according to an embodiment of the present invention;
FIG. 4 is a side cross-sectional view of an intelligent leather surface defect detection device based on image recognition according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a driving box and a main structure of an intelligent leather surface defect detection device based on image recognition according to an embodiment of the present invention;
FIG. 6 is a sectional view of a driving box and a main structure of an intelligent leather surface defect detecting device based on image recognition according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an internal structure of a driving box in the leather surface defect intelligent detection device based on image recognition according to an embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 1 at A;
FIG. 9 is an enlarged view of a portion of FIG. 1 at B;
FIG. 10 is an enlarged view of a portion of FIG. 2 at C;
FIG. 11 is an enlarged view of a portion of FIG. 3 at D;
FIG. 12 is an enlarged view of a portion E of FIG. 3;
FIG. 13 is an enlarged view of a portion of FIG. 4 at F;
FIG. 14 is an enlarged view of a portion of FIG. 4 at G;
FIG. 15 is an enlarged view of a portion of FIG. 6 at H;
FIG. 16 is an enlarged view of a portion of FIG. 7 taken at I;
FIG. 17 is a flowchart of an intelligent leather surface defect detection method based on image recognition according to an embodiment of the present invention.
In the figure:
1. a base; 2. supporting the upright post; 3. an operation panel; 4. a press roll mechanism; 401. a support frame; 402. driving the press roll; 403. a compression roller transmission box; 404. a compression roller motor; 405. a connecting frame; 406. a positioning roller; 407. a feed roller; 5. a support base plate; 6. a side plate; 7. a drive cartridge; 8. a double-headed threaded rod; 9. a drive mechanism; 901. a drive gear; 902. a drive sleeve; 903. a first sliding gear; 904. a first cross drive bar; 905. a second sliding gear; 906. a twentieth drive bar; 907. an end face toothed ring; 908. a limit toothed ring; 909. a connecting frame; 910. an electric cylinder; 911. a face gear; 912. a drive motor; 10. a computer mainframe; 11. a top plate; 12. a suspension plate; 13. a cycle detection mechanism; 1301. fixing the pulley; 1302. a transmission belt; 1303. fixing the inner plate; 1304. a circulating motion column; 1305. a camera support; 1306. a matrix camera group; 1307. a linkage column; 1308. a linking sleeve; 1309. the anti-rotation ejector rod; 1310. the anti-rotation upright stanchion; 1311. a circulating motor; 14. moving the internal thread sleeve; 15. an end face fixing plate; 16. side limit strips; 17. a support bar; 18. an electromagnetic clamp; 19. a bottom support bar; 20. a drive slot; 21. a support chute; 22. a driving rack; 23. a side supporting groove; 24. a lens-carrying holder; 25. a mirror-carrying pan-tilt; 26. a wide-angle camera; 27. a light supplement lamp; 28. a fixed seat.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to the embodiment of the invention, the leather surface defect intelligent detection device based on image recognition is provided, as shown in fig. 1-16, the leather surface defect intelligent detection device comprises a base 1, a plurality of supporting upright posts 2 are arranged on the edge of the top of the base 1, an operation panel 3 is arranged on the top of the front surface of the base 1, compression roller mechanisms 4 are arranged at two ends of the top of the base 1, a supporting bottom plate 5 is arranged in the middle of the top of the base 1, and side plates 6 are arranged on the front surface and the back surface of the top of the base 1; the top end of the supporting bottom plate 5 is provided with three driving boxes 7, a double-end threaded rod 8 penetrates through the driving boxes 7, and a driving mechanism 9 is sleeved in the middle of the double-end threaded rod 8; a computer mainframe box 10 and a top plate 11 are respectively arranged between the tops of the supporting columns 2, six hanging plates 12 are arranged at the bottom of the top plate 11, and a circulation detection mechanism 13 is arranged between the bottoms of the hanging plates 12.
By means of the technical scheme, the upper and lower surfaces of the leather can be synchronously detected and identified by arranging the upper and lower groups of camera detection modules, so that the comprehensiveness and accuracy of defect detection are improved; cooperate a plurality of actuating mechanism 9 etc. can carry out automatic feed and centre gripping tensioning to the leather to guarantee the leather in the planarization of relying on of testing process, improve the effect that detects by a wide margin when the device is automatic. Through setting up the compression roller mechanism 4 that possesses the locate function that flattens, can realize the automatic feed and the ejection of compact of leather, improve the degree of automation of device, guarantee the planarization of leather itself simultaneously, and carry out the cleanness of certain degree to the leather surface, reduce the influence of filth to the defect recognition result.
In one embodiment, for the above mentioned roller mechanism 4, the roller mechanism 4 includes two support frames 401 disposed on the top of one end of the base 1, two driving rollers 402 are disposed between the two support frames 401, a roller transmission box 403 is disposed on the outer side of one support frame 401, a roller motor 404 is disposed at the bottom of the roller transmission box 403, two ends of the driving rollers 402 are both provided with a connecting frame 405, a positioning roller 406 is disposed between one ends of the connecting frames 405 close to the base 1, and two feeding rollers 407 are disposed between the other ends of the connecting frames 405; two link 405 mutual symmetries that are located the homonymy just are the triangle-shaped structure, and link 405 keeps swing joint with drive pinch roller 402 to can flatten the location to the leather, realize the automatic feeding and the ejection of compact of leather.
In one embodiment, for the double-threaded rod 8, two sides of the double-threaded rod 8 are both sleeved with a movable internal thread sleeve 14 in threaded fit with the double-threaded rod 8, two ends of the double-threaded rod 8 are both provided with end fixing plates 15 and are movably connected, two side limiting strips 16 are arranged between two sides of the driving box 7 and the end fixing plates 15, and the side limiting strips 16 penetrate through the movable internal thread sleeve 14 and are movably connected; remove the internal thread cover 14 top and be provided with bracing piece 17, bracing piece 17 top is provided with electromagnetic clamp 18 to realize that the installation of electromagnetic clamp 18 is fixed, and realize the regulation of two electromagnetic clamp 18 distances through double threaded rod 8, carry out effectual centre gripping and tensioning to the leather of different specifications.
In one embodiment, for the driving box 7, both sides of the bottom of the driving box 7 are provided with bottom supporting bars 19, the middle position of the bottom of the driving box 7 is provided with a driving groove 20, both sides of the top of the supporting bottom plate 5 are provided with supporting sliding grooves 21 matched with the bottom supporting bars 19, and the middle position of the top of the supporting bottom plate 5 is provided with a driving rack 22 matched with the driving groove 20; the lateral supporting grooves 23 matched with the end face fixing plates 15 are formed in the inner sides of the lateral plates 6, so that the driving box 7 can be in high-strength butt joint with the supporting bottom plate 5, the stability of the operation process of the driving box 7 is improved, and deviation in the motion process is avoided.
In one embodiment, for the above driving box 7, a mirror carrying support 24 is disposed on the top end of the driving box 7 located in the middle, a mirror carrying pan-tilt 25 is disposed on the top end of the mirror carrying support 24, wide-angle cameras 26 are disposed on both sides of the top of the mirror carrying pan-tilt 25, and a light supplementing lamp 27 is disposed in the middle of the top of the mirror carrying pan-tilt 25, so that the lower surface of the leather can be identified and detected, and the area of the detected area is increased by the wide-angle cameras 26.
In one embodiment, for the driving box 7, the fixing seats 28 are disposed at the bottom of the driving box 7 and at two sides of the driving groove 20, the driving mechanism 9 includes a driving gear 901 sleeved at the middle position of the double-threaded rod 8 and located between the two fixing seats 28, and the driving gear 901 is engaged with the driving rack 22; a driving sleeve 902 is arranged on one side of the driving gear 901 and is inserted into the other side of one of the fixing seats 28, a first sliding gear 903 is sleeved on the outer side of the circumference of the driving sleeve 902, and a first cross-shaped driving strip 904 clamped with the inner side of the circumference of the first sliding gear 903 is arranged on the outer side of the circumference of the driving sleeve 902; a second sliding gear 905 is sleeved on one side, away from the other fixed seat 28, of the double-threaded rod 8, and a second cross-shaped driving strip 906 clamped with the inner side of the circumference of the second sliding gear 905 is arranged on the outer side of the circumference of the double-threaded rod 8; end face gear rings 907 are arranged on the inner sides of the first sliding gear 903 and the second sliding gear 905, and a limiting gear ring 908 matched with the end face gear rings 907 is arranged on the outer side of the fixed seat 28; a connecting frame 909 is sleeved on the outer sides of the first sliding gear 903 and the second sliding gear 905 and keeps movable connection, and an electric cylinder 910 is arranged between two sides of one end of the connecting frame 909 and the inner side wall of the driving box 7; the top in the drive box 7 is provided with a face gear 911 matched with the first sliding gear 903 and the second sliding gear 905, and the top of the drive box 7 is provided with a driving motor 912 matched with the face gear 911, so that the drive box 7 can be directionally moved by the engagement of the driving gear 901 and the driving rack 22, the electric cylinder 910 drives the connecting frame 909 to move to change the driving mode of the face gear 911, and further the mode change of the movement of the drive box 7 or the distance adjustment of the electromagnetic clamp 18 is realized.
In one embodiment, for the first sliding gear 903, the distance between the first sliding gear 903 and the second sliding gear 905 is kept fixed and smaller than the diameter of the face gear 911, so that the face gear 911 is prevented from driving the first sliding gear 903 and the second sliding gear 905 at the same time, and the two gears are prevented from being locked.
In one embodiment, for the above circulation detection mechanism 13, the circulation detection mechanism 13 includes a fixed pulley 1301 disposed inside the bottom of the suspension plate 12 and movably connected thereto, a transmission belt 1302 is sleeved outside the fixed pulley 1301 on the same side, a fixed inner plate 1303 is disposed between the inner sides of the fixed pulleys 1301 on the same side and movably connected thereto, a circulation motion column 1304 is disposed between the two fixed inner plates 1303, a camera support 1305 is disposed at the bottom of the circulation motion column 1304, and a matrix camera group 1306 is disposed at the bottom end of the camera support 1305; a linkage column 1307 is arranged on the inner side of the transmission belt 1302, and a linkage sleeve 1308 is arranged between the linkage column 1307 and the circulating motion column 1304; an anti-rotation push rod 1309 is arranged between the suspension plates 12 at two sides, and an anti-rotation vertical rod 1310 matched with the anti-rotation push rod 1309 is arranged at the top end of the circulating motion column 1304; a circulating motor 1311 matched with the fixed pulley 1301 is arranged on the outer side of the hanging plate 12 located at one end, so that the bottom matrix camera group 1306 can reciprocate circularly, the upper surface of the leather is detected and identified comprehensively, and identification accuracy is improved.
In one embodiment, for the fixed pulley 1301, the fixed pulley 1301 is in an i-shaped structure, the inner wall of the transmission belt 1302 is clamped with the fixed pulley 1301, the position of the center of the circle outside the fixed pulley 1301 is connected with the inner side of the fixed inner plate 1303 through a T-shaped cylinder, and a sliding groove with the width equal to the diameter of the circular motion column 1304 is formed in the outer side of the fixed inner plate 1303, so that stable connection among a plurality of structures can be achieved, loosening and falling of the structures are avoided, and the stability of the device is improved.
According to another embodiment of the present invention, as shown in fig. 17, there is also provided an intelligent detection method for leather surface defects based on image recognition, the method comprising the following steps:
s1, placing a leather finished product to be detected into a compression roller mechanism 4, and positioning and flattening;
s2, allowing the leather to be detected to enter the device, controlling the electromagnetic clamp 18 at the farthest end to clamp one end of the leather at first, and moving towards two sides to tension the leather;
s3, the leather sequentially enters the device, the second electromagnetic clamp 18 and the third electromagnetic clamp 18 clamp the middle part and the tail part of the leather and move towards two sides to tension the leather;
s4, the three driving boxes 7 drive the leather in the electromagnetic clamp 18 to move towards a detection area and finally stop under the circulating detection mechanism 13;
s5, driving the circulating detection mechanism 13 to shoot the surface of the leather, loosening the electromagnetic clamp 18 at the middle position, and driving the wide-angle camera 26 to move by the driving box 7 to detect the bottom of the leather;
s6, acquiring image data of the matrix camera group 1306 and the wide-angle camera 26, and performing automatic defect analysis;
and S7, performing image recognition operation and defect detection through the computer mainframe 10, and outputting a final detection result.
For the convenience of understanding the technical solutions of the present invention, the working principle or the operation mode of the present invention in the practical process will be described in detail below.
In practical application, will wait to detect the leather finished product and put into compression roller mechanism 4, fix a position and flatten, the leather at first gets into feed roll 407 and pushes in to drive pinch roll 402 after preliminary flattening, and the inside drive gear group of compression roller transmission box 403 keeps being connected compression roller motor 404 and drive pinch roll 402 and realizes the transmission, finally with inside the leather gatherer. When leather to be detected enters the device, the electromagnetic clamp 18 at the farthest end is controlled to clamp one end of the leather and move towards two sides to tension the leather (at the moment, the second sliding gear 905 is kneaded with the face gear 911, and the face gear ring 907 and the limiting gear ring 908 at one side of the first sliding gear 903 are clamped and locked with each other, so that the double-threaded rod 8 is driven by the second sliding gear 905 to rotate, and finally the two movable internal thread sleeves 14 are driven to move); the leather sequentially enters the device, the second electromagnetic clamp 18 and the third electromagnetic clamp 18 clamp the middle part and the tail part of the leather and move towards two sides to realize leather tensioning; the three driving boxes 7 drive the leather in the electromagnetic clamp 18 to move towards the detection area (at this time, the first sliding gear 903 is meshed with the face gear 911, and the electric cylinder 910 realizes the switching between the first sliding gear 903 and the second sliding gear 905), and finally stops right below the circulating detection mechanism 13; the circular detection mechanism 13 is driven to shoot the surface of the leather (the circular motor 1311 drives the fixed pulley 1301 to rotate, drives the transmission belt 1302 to transmit, drives the linkage column 1307 to do circular motion, and drives the circular motion column 1304 to do reciprocating motion through the linkage sleeve 1308), meanwhile, the electromagnetic clamp 18 at the middle position is loosened, and the driving box 7 drives the wide-angle camera 26 to move to detect the bottom of the leather; acquiring image data of the matrix camera group 1306 and the wide-angle camera 26, and performing automatic defect analysis; and performing image recognition operation and defect detection through the computer mainframe 10, and outputting a final detection result.
In summary, by means of the above technical scheme of the invention, the upper and lower surfaces of the leather can be synchronously detected and identified by arranging the upper and lower groups of camera detection modules, so that the comprehensiveness and accuracy of defect detection are improved; electromagnetic clamp 18 and actuating mechanism 9 etc. of cooperation automatic clamping can carry out automatic feed and centre gripping tensioning to the leather to guarantee the leather in the planarization of relying on of testing process, improve the device automation and improve the effect that detects by a wide margin simultaneously. Through setting up the compression roller mechanism 4 that possesses the locate function that flattens, can realize the automatic feed and the ejection of compact of leather, improve the degree of automation of device, guarantee the planarization of leather itself simultaneously, and carry out the cleanness of certain degree to the leather surface, reduce the influence of filth to the defect recognition result. By arranging the driving mechanism 9, the movement of the driving box 7 and the distance adjustment of the electromagnetic clamp 18 can be realized through a single driving motor 912, the intelligent degree of the device is improved, the operation is simple and flexible, the leather with different specifications and sizes can be clamped, tensioned and fixed, and the practicability of the device is greatly improved; meanwhile, the circulation detection mechanism 13 which automatically reciprocates is matched, so that the depth detection can be carried out on the upper surface of the leather, and the detection precision is improved.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood broadly, for example, as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate agent, and may be used for communicating the inside of two elements or interacting relation of two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. Leather surface defect intelligent detection device based on image recognition, including base (1), its characterized in that:
the edge of the top of the base (1) is provided with a plurality of supporting upright columns (2), the top of the front side of the base (1) is provided with an operation panel (3), both ends of the top of the base (1) are provided with compression roller mechanisms (4), the middle position of the top of the base (1) is provided with a supporting bottom plate (5), and the front and the back of the top of the base (1) are provided with side plates (6);
the top end of the supporting bottom plate (5) is provided with three driving boxes (7), a double-end threaded rod (8) penetrates through the driving boxes (7), and a driving mechanism (9) is sleeved at the middle position of the double-end threaded rod (8);
be provided with computer mainframe (10) and roof (11) between support post (2) top respectively, roof (11) bottom is provided with six and hangs board (12), it is provided with circulation detection mechanism (13) to hang between board (12) bottom.
2. The leather surface defect intelligent detection device based on image recognition is characterized in that the compression roller mechanism (4) comprises two support frames (401) arranged at the top of one end of the base (1), two driving compression rollers (402) are arranged between the two support frames (401), a compression roller transmission box (403) is arranged on the outer side of one support frame (401), a compression roller motor (404) is arranged at the bottom of the compression roller transmission box (403), two ends of the driving compression roller (402) are respectively provided with a connecting frame (405) in a sleeved mode, a positioning roller (406) is arranged between one ends, close to the base (1), of the connecting frames (405), and two feeding rollers (407) are arranged between the other ends of the connecting frames (405);
the two connecting frames (405) positioned on the same side are symmetrical to each other and are in triangular structures, and the connecting frames (405) are movably connected with the driving press roller (402).
3. The leather surface defect intelligent detection device based on image recognition is characterized in that two movable internal thread sleeves (14) in threaded fit with two sides of the double-threaded rod (8) are sleeved on the two sides of the double-threaded rod (8), end face fixing plates (15) are arranged at the two ends of the double-threaded rod (8) and are movably connected with the double-threaded rod, two side limiting strips (16) are arranged between the two sides of the driving box (7) and the end face fixing plates (15), and the side limiting strips (16) penetrate through the movable internal thread sleeves (14) and are movably connected with the movable internal thread sleeves;
the top of the movable internal thread sleeve (14) is provided with a support rod (17), and the top of the support rod (17) is provided with an electromagnetic clamp (18).
4. The intelligent detection device for the leather surface defects based on the image recognition is characterized in that bottom support bars (19) are arranged on two sides of the bottom of the driving box (7), a driving groove (20) is formed in the middle of the bottom of the driving box (7), support sliding grooves (21) matched with the bottom support bars (19) are formed in two sides of the top of the support bottom plate (5), and a driving rack (22) matched with the driving groove (20) is arranged in the middle of the top of the support bottom plate (5);
and the inner side of the side plate (6) is provided with a side supporting groove (23) matched with the end surface fixing plate (15).
5. The leather surface defect intelligent detection device based on image recognition is characterized in that a mirror carrying support (24) is arranged at the top end of the driving box (7) located in the middle, a mirror carrying cloud platform (25) is arranged at the top end of the mirror carrying support (24), wide-angle cameras (26) are arranged on two sides of the top of the mirror carrying cloud platform (25), and a light supplementing lamp (27) is arranged in the middle of the top of the mirror carrying cloud platform (25).
6. The intelligent detection device for the leather surface defects based on the image recognition is characterized in that fixing seats (28) are arranged at the bottom in the driving box (7) and on two sides of the driving groove (20), the driving mechanism (9) comprises a driving gear (901) which is sleeved at the middle position of the double-end threaded rod (8) and is arranged between the two fixing seats (28), and the driving gear (901) is meshed with the driving rack (22);
a driving sleeve (902) is arranged on one side of the driving gear (901) and penetrates to the other side of one of the fixed seats (28), a first sliding gear (903) is sleeved on the outer side of the circumference of the driving sleeve (902), and a first cross driving strip (904) which is clamped with the inner side of the circumference of the first sliding gear (903) is arranged on the outer side of the circumference of the driving sleeve (902);
a second sliding gear (905) is sleeved on one side, away from the other fixed seat (28), of the double-end threaded rod (8), and a second cross-shaped driving strip (906) clamped with the inner side of the circumference of the second sliding gear (905) is arranged on the outer side of the circumference of the double-end threaded rod (8);
end face gear rings (907) are arranged on the inner sides of the first sliding gear (903) and the second sliding gear (905), and a limiting gear ring (908) matched with the end face gear ring (907) is arranged on the outer side of the fixed seat (28);
a connecting frame (909) is sleeved on the outer sides of the first sliding gear (903) and the second sliding gear (905) and is movably connected with the first sliding gear, and an electric cylinder (910) is arranged between two sides of one end of the connecting frame (909) and the inner side wall of the driving box (7);
the top is provided with in drive box (7) with first sliding gear (903) and second sliding gear (905) matched with face gear (911), drive box (7) top be provided with face gear (911) matched with driving motor (912).
7. The intelligent detection device for leather surface defects based on image recognition is characterized in that the distance between the first sliding gear (903) and the second sliding gear (905) is kept fixed and smaller than the diameter of the face gear (911).
8. The leather surface defect intelligent detection device based on image recognition is characterized in that the circulation detection mechanism (13) comprises fixed pulleys (1301) which are arranged on the inner sides of the bottoms of the suspension plates (12) and are movably connected, a transmission belt (1302) is sleeved on the outer sides of the fixed pulleys (1301) on the same side, fixed inner plates (1303) are arranged between the inner sides of the fixed pulleys (1301) on the same side and are movably connected, a circulation motion column (1304) is arranged between the two fixed inner plates (1303), a camera bracket (1305) is arranged at the bottom of the circulation motion column (1304), and a matrix camera set (1306) is arranged at the bottom end of the camera bracket (1305);
a linkage column (1307) is arranged on the inner side of the transmission belt (1302), and a linkage sleeve (1308) is arranged between the linkage column (1307) and the circulating motion column (1304);
anti-rotation ejector rods (1309) are arranged between the suspension plates (12) positioned on two sides, and anti-rotation upright rods (1310) matched with the anti-rotation ejector rods (1309) are arranged at the top ends of the circulating motion columns (1304);
and a circulating motor (1311) matched with the fixed pulley (1301) is arranged on the outer side of the suspension plate (12) at one end.
9. The leather surface defect intelligent detection device based on image recognition is characterized in that the fixed pulley (1301) is of an I-shaped structure, the inner wall of the transmission belt (1302) is clamped with the fixed pulley (1301), the position of the outer side circle center of the fixed pulley (1301) is connected with the inner side of the fixed inner plate (1303) through a T-shaped cylinder, and the outer side of the fixed inner plate (1303) is provided with a sliding groove with the width equal to the diameter of the circulating motion column (1304).
10. The intelligent detection method of the leather surface defects based on the image recognition is used for realizing the intelligent detection device of the leather surface defects based on the image recognition in the claims 1-9, and is characterized by comprising the following steps:
s1, placing a leather finished product to be detected into a compression roller mechanism (4), and positioning and flattening;
s2, allowing the leather to be detected to enter the device, controlling an electromagnetic clamp (18) at the farthest end to clamp one end of the leather at first, and moving towards two sides to tension the leather;
s3, the leather sequentially enters the device, the second electromagnetic clamp (18) and the third electromagnetic clamp (18) clamp the middle part and the tail part of the leather, and the leather moves towards two sides to realize leather tensioning;
s4, the three driving boxes (7) drive the leather in the electromagnetic clamp (18) to move towards a detection area and finally stop under the circulating detection mechanism (13);
s5, driving the circulating detection mechanism (13) to shoot the surface of the leather, loosening the electromagnetic clamp (18) at the middle position, and driving the wide-angle camera (26) to move by the driving box (7) to detect the bottom of the leather;
s6, acquiring image data of a matrix camera set (1306) and the wide-angle camera (26), and performing automatic defect analysis;
and S7, performing image recognition operation and defect detection through the computer mainframe (10), and outputting a final detection result.
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| CN202211735288.8A CN115980064B (en) | 2022-12-31 | 2022-12-31 | Intelligent leather surface defect detection device and detection method based on image recognition |
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| CN202211735288.8A CN115980064B (en) | 2022-12-31 | 2022-12-31 | Intelligent leather surface defect detection device and detection method based on image recognition |
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