A surface defect detection device and method for carpet production

Abstract

The present invention provides a surface flaw detection device and method for carpet production, which relates to the technical field of carpet detection and includes a mounting base plate; two sets of rotary drive parts are installed on the top of the mounting base plate; a flaw detection part is installed on the top of the mounting base plate, and the flaw detection part is located between the two sets of rotary drive parts; a re-inspection judgment part is installed on the flaw detection part; a grade confirmation part is installed on the mounting base plate and the flaw detection part; when the left row of image acquisition cameras do not detect flaws at the corresponding positions, it indicates that there are sundries on the lenses of the right row of image acquisition cameras or there are sundries at the flaw positions of the carpet; the problem that the carpet at the flaw positions generally cannot be automatically re-inspected, and misjudgment will occur when there are sundries on the carpet surface or at the camera lens positions, affecting the accuracy of carpet flaw detection is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of carpet detection, and more specifically, particularly relates to a surface defect detection device and method for carpet production. Background Art

[0002] A carpet is a floor covering made of natural fibers such as cotton, linen, wool, grass yarns, or chemical synthetic fiber raw materials through hand or mechanical processes of knitting, tufting, or weaving; the defects on the carpet surface will directly affect its appearance and touch. Through detection, these defects can be found and processed in time to ensure that the carpet meets high-quality standards.

[0003] The currently used carpet surface defect detection devices still have the following problems:

[0004] 1. The carpet at the defect location generally cannot be automatically re-inspected. When there are sundries on the carpet surface or at the camera lens, it will cause misjudgment, affecting the detection accuracy of carpet defects.

[0005] 2. It is impossible to automatically record the defects of the carpet, which is inconvenient for the staff to find the defect locations, affecting the subsequent repair efficiency; and it cannot automatically classify the carpet according to the number of defects, which is not conducive to subsequent discount sales. Summary of the Invention

[0006] The embodiments of the present disclosure relate to a surface defect detection device and method for carpet production, which have a rotation drive unit, a defect detection unit, a re-inspection judgment unit, and a grade confirmation unit; when the row of image acquisition cameras on the left does not detect a defect at the corresponding position, it indicates that there are sundries on the lens of the row of image acquisition cameras on the right or there are sundries at the defect location of the carpet; it plays a role in recording the defect locations of the carpet, facilitating the staff to find the defects on the carpet subsequently; it is convenient for the staff to judge the grade of the carpet, which is conducive to subsequent discount sales according to the grade; and it solves the problems of misjudgment caused by the presence of sundries on the carpet surface or at the camera lens, the inability to automatically record the defects of the carpet, and the inability to automatically classify the carpet according to the number of defects.

[0007] In a first aspect of the present disclosure, there is provided a surface defect detection device for carpet production, which is used to detect the surface of a carpet; it includes a mounting base plate; two sets of rotation driving parts are mounted on the top of the mounting base plate, and the two sets of rotation driving parts are used to move the carpet; a defect detection part is mounted on the top of the mounting base plate, and the defect detection part is located between the two sets of rotation driving parts; a control panel is mounted on the front side of the defect detection part; a re-inspection judgment part is mounted on the defect detection part, and the re-inspection judgment part is used to improve the detection accuracy of the defect detection part; a grade confirmation part is mounted on the mounting base plate and the defect detection part, and the grade confirmation part is used to confirm the grade of the carpet after detection.

[0008] In at least some embodiments, the rotation driving part includes: a mounting flat plate, a rotation driving roller, a servo motor and a connecting gear; there are two mounting flat plates in total, and the two mounting flat plates are mounted on the top of the mounting base plate by screws; there are two rotation driving rollers in total, and the two rotation driving rollers are rotatably mounted on the mounting flat plate; the servo motor is mounted on the front mounting flat plate by screws, and the output shaft of the servo motor is also fixedly connected to the lower rotation driving roller, and the servo motor is also electrically connected to the control panel; there are two connecting gears in total, and the two connecting gears are fixedly mounted on the rear ends of the two rotation driving rollers, and the two connecting gears are meshed and connected.

[0009] In at least some embodiments, the defect detection part includes: a U-shaped frame; the U-shaped frame is mounted on the top of the mounting base plate by screws, a triangular observation mark is opened on the front side of the U-shaped frame, and a circular arc-shaped groove is also opened on the front side of the U-shaped frame.

[0010] In at least some embodiments, the defect detection part further includes: a support flat plate, an image acquisition camera and a limit knob; the support flat plate is fixedly mounted on the U-shaped frame; there are two rows of image acquisition cameras in total, and the two rows of image acquisition cameras are slidably mounted on the U-shaped frame, and the two rows of image acquisition cameras are also electrically connected to the control panel; there are two rows of limit knobs in total, and the two rows of limit knobs are threadedly connected to the U-shaped frame, and the inner ends of the two rows of limit knobs are in contact with the two rows of image acquisition cameras.

[0011] In at least some embodiments, the re-inspection judgment part includes: an H-shaped movable frame, a cleaning brush and a spiral spring; the H-shaped movable frame is slidably mounted on the U-shaped frame; the cleaning brush is fixedly mounted on the bottom of the H-shaped movable frame; there are two spiral springs in total, and the two spiral springs are sleeved outside the H-shaped movable frame, and the two spiral springs are located above the U-shaped frame.

[0012] In at least some embodiments, the re-inspection judgment unit further includes: a mounting bar, a linear electric cylinder A, and an inclined sealing frame; the mounting bar is installed on the U-shaped frame by screws; there are two linear electric cylinders A in total, and the two linear electric cylinders A are fixedly installed on the mounting bar, and the two linear electric cylinders A are also electrically connected to the control panel; the inclined sealing frame is fixedly installed on the output shafts of the two linear electric cylinders A, and the top of the inclined sealing frame contacts the left row of image acquisition cameras, and the bottom of the inclined sealing frame contacts the H-shaped movable frame.

[0013] In at least some embodiments, the grade confirmation unit includes: a movable recording seat, a ratchet mechanism, and a movable positioning head; the movable recording seat is rotatably installed on the U-shaped frame; the ratchet mechanism is fixedly installed at the rear end of the movable recording seat; the movable positioning head is slidably installed on the movable recording seat, and the rear end of the movable positioning head is provided with a rounded corner, and the rear end of the movable positioning head is inserted into the corresponding arc-shaped groove.

[0014] In at least some embodiments, the grade confirmation unit further includes: a reset tension spring, a linear electric cylinder B, and a rectangular housing; the reset tension spring is sleeved outside the movable positioning head, and the front end of the reset tension spring is fixedly connected to the movable positioning head, and the rear end of the reset tension spring is fixedly connected to the movable recording seat; there are two linear electric cylinders B in total, and the two linear electric cylinders B are fixedly installed on the top of the mounting base plate, and the two linear electric cylinders B are also electrically connected to the control panel; the rectangular housing is fixedly installed on the output shafts of the two linear electric cylinders B.

[0015] In at least some embodiments, the grade confirmation unit further includes: a linear rack and a dye-absorbing cotton; the linear rack is fixedly installed at the bottom of the rectangular housing, and the linear rack is also meshed with the ratchet mechanism; the dye-absorbing cotton is installed inside the rectangular housing.

[0016] A method for detecting surface defects of carpets used in carpet production:

[0017] 1), Pass the carpet to be detected through the two rotating drive rollers at the left and right ends, so that the bottom of the carpet contacts the support flat plate;

[0018] 2), Start the two servo motors and two rows of image acquisition cameras through the control panel. When the right row of image acquisition cameras detects a defect on the carpet, the control panel controls the output shafts of the two linear electric cylinders A to extend, and then the control panel controls the output shafts of the two servo motors to rotate in the reverse direction, so that the carpet at the defective part moves reversely to the lower part of the left row of image acquisition cameras;

[0019] 3), When the carpet finishes being detected by the row of image acquisition cameras on the left, the control panel controls the output shafts of the two linear electric cylinders A to contract. Then, the control panel controls the output shafts of the two servo motors to rotate forward, causing the carpet with previous defects to move under the row of image acquisition cameras on the right again;

[0020] 4), When there are defects in the carpet after reinspection, the control panel controls the output shafts of the two linear electric cylinders B to extend, making the dye-absorbing cotton automatically contact the bottom of the carpet;

[0021] 5), When there are defects in the detected carpet, the grade of the carpet is judged according to the triangular observation mark. When the movable recording seat rotates more than one circle, it is all processed according to Class D grade; when the movable recording seat does not rotate more than one circle, the corresponding grade is judged according to the area pointed to by the triangular observation mark.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In the present invention, when the output shafts of the two servo motors rotate forward, the two lower rotating drive rollers rotate clockwise; when the output shafts of the two servo motors rotate backward, the two lower rotating drive rollers rotate counterclockwise; the two upper rotating drive rollers can rotate in the opposite direction following the two lower rotating drive rollers, enabling the carpet to move automatically under the action of the four rotating drive rollers, realizing the automatic detection of the carpet.

[0024] 2. The present invention facilitates the staff to install or disassemble the image acquisition cameras, which is conducive to timely replacement of damaged image acquisition cameras; with the setting of two rows of image acquisition cameras, the row of image acquisition cameras on the right is used to detect the surface of the carpet, and the row of image acquisition cameras on the left is used to reinspect the defects detected by the row of image acquisition cameras on the right; [[ID=]16]

[0025] In addition, when a row of image acquisition cameras on the right detect a defect on the carpet, the control panel controls the output shafts of the two linear electric cylinders A to extend, separating the inclined sealing frame from the row of image acquisition cameras on the left. Then, the control panel controls the output shafts of the two servo motors to rotate in the reverse direction, moving the carpet with the defect in the reverse direction to below the row of image acquisition cameras on the left. When a row of image acquisition cameras on the left detects a defect at the corresponding position, it indicates that there is indeed a defect at this location on the carpet. When a row of image acquisition cameras on the left does not detect a defect at the corresponding position, it indicates that there is debris on the lens of the row of image acquisition cameras on the right or there is debris at the defective area of the carpet. When the control panel controls the output shafts of the two linear electric cylinders A to extend, the H-shaped movable frame automatically moves downward under the action of the inclined sealing frame, bringing the cleaning brush into contact with the carpet first, ensuring that when the carpet moves in the reverse direction to below the row of image acquisition cameras on the left, the cleaning brush can automatically clean the defective area, which is beneficial to the accurate detection of the row of image acquisition cameras on the left.

[0026] Among them, when the carpet has been detected by the row of image acquisition cameras on the left, the control panel controls the output shafts of the two linear electric cylinders A to contract, bringing the inclined sealing frame into contact with the row of image acquisition cameras on the left, playing a role in shielding and protecting the lenses of the row of image acquisition cameras on the left. The H-shaped movable frame automatically resets upward under the action of the two spiral springs. Then, the control panel controls the output shafts of the two servo motors to rotate forward, moving the carpet that had the defect before back to below the row of image acquisition cameras on the right. When the row of image acquisition cameras on the right detects a defect at the corresponding position, it indicates that there is debris on the lens of the row of image acquisition cameras on the right. When the row of image acquisition cameras on the right does not detect a defect at the corresponding position, it indicates that there is debris at the defective area of the carpet before.

[0027] 3. When the carpet has defects after reinspection in the present invention, the control panel controls the output shafts of the two linear electric cylinders B to extend, bringing the dye-absorbing cotton into automatic contact with the bottom of the carpet, playing a role in recording the defective areas of the carpet, facilitating the staff to find the defects on the carpet subsequently, and being beneficial to improving the repair efficiency of the defective areas.

[0028] In addition, it is convenient for the staff to judge the grade of the carpet. When the inspected carpet has no defects, the produced carpet belongs to qualified products. When the inspected carpet has defects, the grade of the carpet is judged according to the triangular observation mark. When the movable recording seat rotates more than one circle, it is all classified as grade D, which is beneficial to subsequent discount sales according to the grade. When the dye-absorbing cotton moves upward, the movable recording seat rotates a certain angle. When the dye-absorbing cotton moves downward, the movable recording seat does not rotate under the resistance of the movable positioning head, realizing the one-way automatic rotation of the movable recording seat. Brief Description of the Drawings

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0030] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0031] In the drawings:

[0032] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0033] Figure 2 The present invention is shown Figure 1 A schematic diagram of the rear-side perspective structure of the present invention;

[0034] Figure 3 A schematic diagram of the structure of the re-inspection judgment part of the present invention is shown;

[0035] Figure 4 The present invention is shown Figure 1 A schematic diagram of the transverse central cross-sectional structure of the present invention;

[0036] Figure 5 The present invention is shown Figure 4 A partially enlarged structural schematic diagram of area A in the present invention;

[0037] Figure 6 The present invention is shown Figure 1 A schematic diagram of the longitudinal central cross-sectional structure of the present invention;

[0038] Figure 7 The present invention is shown Figure 6 A partially enlarged structural schematic diagram of area B in the present invention;

[0039] Figure 8 A schematic diagram of the structure of the level confirmation part of the present invention is shown;

[0040] Figure 9 The present invention is shown Figure 6 A partially enlarged structural schematic diagram of area C in the present invention;

[0041] Figure 10 The present invention is shown Figure 1 A partially enlarged structural schematic diagram of area D in the present invention.

[0042] List of Reference Numerals:

[0043] 100, mounting base plate;

[0044] 200, rotation driving part; 201, mounting flat plate; 202, rotation driving roller; 203, servo motor; 204, connecting gear;

[0045] 300. Defect Detection Unit; 301. U-shaped Frame; 3011. Triangular Observation Mark; 3012. Arc-shaped Groove; 302. Support Flat Plate; 303. Image Acquisition Camera; 304. Limit Knob;

[0046] 400. Control Panel;

[0047] 500. Carpet;

[0048] 600. Re-inspection and Judgment Unit; 601. H-shaped Movable Frame; 602. Cleaning Brush; 603. Helical Spring; 604. Installation Bar; 605. Linear Electric Cylinder A; 606. Inclined Sealing Frame;

[0049] 700. Grade Confirmation Unit; 701. Activity Record Seat; 702. Ratchet Mechanism; 703. Activity Positioning Head; 704. Reset Pull Spring; 705. Linear Electric Cylinder B; 706. Rectangular Shell; 707. Linear Rack; 708. Dye Absorbing Cotton. Detailed Implementation Manner

[0050] In order to make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0051] Embodiment: Please refer to Figures 1 to 10 As shown in the figure: The present invention provides a surface defect detection device for carpet production, which is used to detect the surface of the carpet 500; it includes a mounting base plate 100; two groups of rotation drive parts 200 are installed on the top of the mounting base plate 100, and the two groups of rotation drive parts 200 are used to move the carpet 500; a defect detection unit 300 is installed on the top of the mounting base plate 100, and the defect detection unit 300 is located between the two groups of rotation drive parts 200; a control panel 400 is installed on the front side of the defect detection unit 300; a re-inspection and judgment unit 600 is installed on the defect detection unit 300, and the re-inspection and judgment unit 600 is used to improve the detection accuracy of the defect detection unit 300; a grade confirmation unit 700 is installed on the mounting base plate 100 and the defect detection unit 300, and the grade confirmation unit 700 is used to confirm the grade of the carpet 500 after detection.

[0052] In the embodiments of the present disclosure, as Figure 1 and Figure 2As shown in the figure, the rotation driving part 200 includes: a mounting flat plate 201, a rotation driving roller 202, a servo motor 203 and a connecting gear 204; there are two mounting flat plates 201 in total, and the two mounting flat plates 201 are mounted on the top of the mounting base plate 100 by screws; there are two rotation driving rollers 202 in total, and the two rotation driving rollers 202 are rotatably mounted on the mounting flat plate 201; the servo motor 203 is mounted on the front mounting flat plate 201 by screws, and the output shaft of the servo motor 203 is also fixedly connected to the lower rotation driving roller 202, and the servo motor 203 is also electrically connected to the control panel 400; there are two connecting gears 204 in total, and the two connecting gears 204 are fixedly mounted on the rear ends of the two rotation driving rollers 202, and the two connecting gears 204 are meshed and connected;

[0053] Its specific function is as follows: since the four rotation driving rollers 202 are rotatably mounted on the two mounting flat plates 201, and the two servo motors 203 are mounted on the front two mounting flat plates 201 by screws, and the output shafts of the two servo motors 203 are also fixedly connected to the lower two rotation driving rollers 202, when the output shafts of the two servo motors 203 rotate forward, the lower two rotation driving rollers 202 rotate clockwise; when the output shafts of the two servo motors 203 rotate reversely, the lower two rotation driving rollers 202 rotate counterclockwise; and since the outer walls of the four rotation driving rollers 202 are in contact with the carpet 500, and the four connecting gears 204 are fixedly mounted on the rear ends of the four rotation driving rollers 202, and the two connecting gears 204 on the left and right sides are respectively meshed and connected, the upper two rotation driving rollers 202 can rotate reversely following the lower two rotation driving rollers 202, so that the carpet 500 automatically moves under the action of the four rotation driving rollers 202, realizing the automatic detection of the carpet 500.

[0054] In the embodiment of the present disclosure, as Figure 3 、 Figure 5 and Figure 7 shown, the defect detection part 300 includes: a U-shaped frame 301; the U-shaped frame 301 is mounted on the top of the mounting base plate 100 by screws, and a triangular observation mark 3011 is provided on the front side of the U-shaped frame 301, and a circular arc groove 3012 is also provided on the front side of the U-shaped frame 301; the defect detection part 300 also includes: a support flat plate 302, an image acquisition camera 303 and a limit knob 304; the support flat plate 302 is fixedly mounted on the U-shaped frame 301; there are two rows of image acquisition cameras 303 in total, and the two rows of image acquisition cameras 303 are slidably mounted on the U-shaped frame 301, and the two rows of image acquisition cameras 303 are also electrically connected to the control panel 400; there are two rows of limit knobs 304 in total, and the two rows of limit knobs 304 are threadedly connected to the U-shaped frame 301, and the inner ends of the two rows of limit knobs 304 are in contact with the two rows of image acquisition cameras 303;

[0055] The re-inspection and judgment unit 600 includes: an H-shaped movable frame 601, a cleaning brush 602, and a helical spring 603; the H-shaped movable frame 601 is slidably mounted on the U-shaped frame 301; the cleaning brush 602 is fixedly mounted at the bottom of the H-shaped movable frame 601; there are two helical springs 603 in total, and the two helical springs 603 are sleeved outside the H-shaped movable frame 601, and the two helical springs 603 are located above the U-shaped frame 301; the re-inspection and judgment unit 600 further includes: a mounting bar 604, a linear cylinder A 605, and an inclined sealing frame 606; the mounting bar 604 is mounted on the U-shaped frame 301 by screws; there are two linear cylinders A 605 in total, and the two linear cylinders A 605 are fixedly mounted on the mounting bar 604, and the two linear cylinders A 605 are also electrically connected to the control panel 400; the inclined sealing frame 606 is fixedly mounted on the output shafts of the two linear cylinders A 605, and the top of the inclined sealing frame 606 contacts the left row of image acquisition cameras 303, and the bottom of the inclined sealing frame 606 contacts the H-shaped movable frame 601;

[0056] Its specific functions are as follows: Since the two rows of image acquisition cameras 303 are slidably mounted on the U-shaped frame 301, and the two rows of limit knobs 304 are threadedly connected to the U-shaped frame 301, and the inner ends of the two rows of limit knobs 304 contact the two rows of image acquisition cameras 303, it is convenient for the staff to install or disassemble the image acquisition cameras 303, which is beneficial to the timely replacement of the damaged image acquisition cameras 303; with the setting of the two rows of image acquisition cameras 303, the right row of image acquisition cameras 303 is used to detect the surface of the carpet 500, and the left row of image acquisition cameras 303 is used to re-inspect the defects detected by the right row of image acquisition cameras 303;

[0057] In addition, since two linear electric cylinders A605 are fixedly installed on the mounting bar 604, and the inclined sealing frame 606 is fixedly installed on the output shafts of the two linear electric cylinders A605, and the top of the inclined sealing frame 606 contacts the row of image acquisition cameras 303 on the left. When the row of image acquisition cameras 303 on the right detects a defect on the carpet 500, the control panel 400 controls the output shafts of the two linear electric cylinders A605 to extend, separating the inclined sealing frame 606 from the row of image acquisition cameras 303 on the left. Then, the control panel 400 controls the output shafts of the two servo motors 203 to rotate in the reverse direction, moving the carpet 500 with the defect reversely to below the row of image acquisition cameras 303 on the left. When the row of image acquisition cameras 303 on the left detects a defect at the corresponding position, it indicates that there is indeed a defect at this place on the carpet 500. When the row of image acquisition cameras 303 on the left does not detect a defect at the corresponding position, it indicates that there is debris on the lens of the row of image acquisition cameras 303 on the right or there is debris at the defective part of the carpet 500. Also, since two helical springs 603 are sleeved outside the H-shaped movable frame 601, and the two helical springs 603 are located above the U-shaped frame 301, and the bottom of the inclined sealing frame 606 contacts the H-shaped movable frame 601. When the control panel 400 controls the output shafts of the two linear electric cylinders A605 to extend, the H-shaped movable frame 601 automatically moves downward under the action of the inclined sealing frame 606, making the cleaning brush 602 contact the carpet 500 first, ensuring that when the carpet 500 moves reversely to below the row of image acquisition cameras 303 on the left, the cleaning brush 602 can automatically clean the defective part, which is beneficial to the accurate detection of the row of image acquisition cameras 303 on the left.

[0058] Among them, when the carpet 500 has been detected by the row of image acquisition cameras 303 on the left, the control panel 400 controls the output shafts of the two linear electric cylinders A605 to contract, making the inclined sealing frame 606 contact the row of image acquisition cameras 303 on the left, playing a role in shielding and protecting the lenses of the row of image acquisition cameras 303 on the left. The H-shaped movable frame 601 automatically resets upward under the action of the two helical springs 603. Then, the control panel 400 controls the output shafts of the two servo motors 203 to rotate forward, moving the carpet 500 at the previous defective part to below the row of image acquisition cameras 303 on the right again. When the row of image acquisition cameras 303 on the right detects a defect at the corresponding position, it indicates that there is debris on the lens of the row of image acquisition cameras 303 on the right. When the row of image acquisition cameras 303 on the right does not detect a defect at the corresponding position, it indicates that there is debris at the defective part of the previous carpet 500.

[0059] In the embodiment of the present disclosure, as Figures 8 to 10As shown in the figure, the grade confirmation unit 700 includes: an activity recording seat 701, a ratchet mechanism 702, and an activity positioning head 703; the activity recording seat 701 is rotatably installed on the U-shaped frame 301; the ratchet mechanism 702 is fixedly installed at the rear end of the activity recording seat 701; the activity positioning head 703 is slidably installed on the activity recording seat 701, and the rear end of the activity positioning head 703 is provided with a rounded corner, and the rear end of the activity positioning head 703 is inserted into the corresponding arc-shaped groove 3012; the grade confirmation unit 700 further includes: a return tension spring 704, a linear cylinder B 705, and a rectangular housing 706; the return tension spring 704 is sleeved outside the activity positioning head 703, and the front end of the return tension spring 704 is fixedly connected to the activity positioning head 703, and the rear end of the return tension spring 704 is fixedly connected to the activity recording seat 701; there are two linear cylinders B 705 in total, and the two linear cylinders B 705 are fixedly installed on the top of the mounting base plate 100, and the two linear cylinders B 705 are also electrically connected to the control panel 400; the rectangular housing 706 is fixedly installed on the output shafts of the two linear cylinders B 705; the grade confirmation unit 700 further includes: a linear rack 707 and a dye absorption cotton 708; the linear rack 707 is fixedly installed at the bottom of the rectangular housing 706, and the linear rack 707 is also meshed with the ratchet mechanism 702; the dye absorption cotton 708 is installed inside the rectangular housing 706;

[0060] Its specific function is: since the rectangular housing 706 is fixedly installed on the output shafts of the two linear cylinders B 705, and the dye absorption cotton 708 is installed inside the rectangular housing 706, when there are defects in the carpet 500 after reinspection, the control panel 400 controls the output shafts of the two linear cylinders B 705 to extend, so that the dye absorption cotton 708 automatically contacts the bottom of the carpet 500, which plays a role in recording the defective parts of the carpet 500, facilitating the staff to find the defective parts on the carpet 500 subsequently, and is beneficial to improving the repair efficiency of the defective parts;

[0061] In addition, since the activity recording seat 701 is rotatably mounted on the U-shaped frame 301, and class A to D class identification marks are provided on the activity recording seat 701, and a triangular observation mark 3011 is provided on the front side of the U-shaped frame 301, which is convenient for the staff to judge the grade of the carpet 500. When there are no defects on the carpet 500 after detection, the produced carpet 500 is a qualified product; when there are defects on the carpet 500 after detection, the grade of the carpet 500 is judged according to the triangular observation mark 3011. When the activity recording seat 701 rotates more than one circle, it is all processed according to class D. When the activity recording seat 701 does not rotate more than one circle, the corresponding grade (class A, class B, class C or class D) is judged according to the area pointed by the triangular observation mark 3011, which is beneficial to subsequent discount sales according to the grade; also, since the ratchet mechanism 702 is fixedly mounted on the rear end of the activity recording seat 701, and the linear rack 707 is meshed with the ratchet mechanism 702, and the rear end of the movable positioning head 703 is inserted into the corresponding arc-shaped groove 3012. When the dye-absorbing cotton 708 moves upward, the activity recording seat 701 rotates by a certain angle, and the rotation angle of the activity recording seat 701 is the same as the included angle between two adjacent arc-shaped grooves 3012; when the dye-absorbing cotton 708 moves downward, the activity recording seat 701 does not rotate under the resistance of the movable positioning head 703, realizing the one-way automatic rotation of the activity recording seat 701;

[0062] Among them, according to the production quality requirements of the carpet 500, the proportions of class A, class B, class C and class D on the activity recording seat 701 can be appropriately adjusted, with higher versatility.

[0063] A method for detecting surface defects of carpet production:

[0064] 1). Pass the carpet 500 to be detected through the two rotating drive rollers 202 at the left and right ends, so that the bottom of the carpet 500 contacts the support flat plate 302;

[0065] 2). Start the two servo motors 203 and two rows of image acquisition cameras 303 through the control panel 400. When a row of image acquisition cameras 303 on the right detects defects on the carpet 500, the control panel 400 controls the output shafts of the two linear electric cylinders A605 to extend, and then the control panel 400 controls the output shafts of the two servo motors 203 to rotate in the reverse direction, so that the carpet 500 with defects moves reversely to the lower part of the row of image acquisition cameras 303 on the left;

[0066] 3). When the detection of the carpet 500 by the row of image acquisition cameras 303 on the left is completed, the control panel 400 controls the output shafts of the two linear electric cylinders A605 to contract, and then the control panel 400 controls the output shafts of the two servo motors 203 to rotate in the forward direction, so that the carpet 500 at the previous defective part moves to the lower part of the row of image acquisition cameras 303 on the right again;

[0067] 4), when there are defects on the carpet 500 after reinspection, the control panel 400 controls the output shafts of the two linear electric cylinders B705 to extend, so that the dye-absorbing cotton 708 automatically contacts the bottom of the carpet 500;

[0068] 5), when there are defects on the inspected carpet 500, judge the grade of the carpet 500 according to the triangular observation mark 3011. When the movable recording seat 701 rotates more than one circle, it is all processed according to the D-class grade; when the movable recording seat 701 rotates less than one circle, judge the corresponding grade according to the area pointed by the triangular observation mark 3011.

[0069] The specific usage mode and function of this embodiment:

[0070] When the present invention is in use, first, the carpet 500 to be detected is passed through the two rotary drive rollers 202 at the left and right ends, so that the bottom of the carpet 500 contacts the support flat plate 302; the two servo motors 203 and the two rows of image acquisition cameras 303 are started through the control panel 400. When the output shafts of the two servo motors 203 rotate forward, the two lower rotary drive rollers 202 rotate clockwise; when the output shafts of the two servo motors 203 rotate reversely, the two lower rotary drive rollers 202 rotate counterclockwise; the two upper rotary drive rollers 202 can rotate reversely following the two lower rotary drive rollers 202, so that the carpet 500 automatically moves under the action of the four rotary drive rollers 202, realizing the automatic detection of the carpet 500; when a row of image acquisition cameras 303 on the right detects a flaw or defect on the carpet 500, the control panel 400 controls the output shafts of the two linear electric cylinders A 605 to extend, so that the inclined sealing frame 606 is separated from the row of image acquisition cameras 303 on the left. Then, the control panel 400 controls the output shafts of the two servo motors 203 to rotate reversely, so that the carpet 500 at the flaw or defect position moves reversely to the lower part of the row of image acquisition cameras 303 on the left; when a row of image acquisition cameras 303 on the left detects a flaw or defect at the corresponding position, it indicates that there is indeed a flaw or defect at this place on the carpet 500. When a row of image acquisition cameras 303 on the left does not detect a flaw or defect at the corresponding position, it indicates that there is debris on the lens of the row of image acquisition cameras 303 on the right or there is debris at the flaw or defect position of the carpet 500; when the control panel 400 controls the output shafts of the two linear electric cylinders A 605 to extend, the H-shaped movable frame 601 automatically moves downward under the action of the inclined sealing frame 606, so that the cleaning brush 602 contacts the carpet 500 first, ensuring that when the carpet 500 moves reversely to the lower part of the row of image acquisition cameras 303 on the left, the cleaning brush 602 can automatically clean the flaw or defect position, which is beneficial to the accurate detection of the row of image acquisition cameras 303 on the left; when the carpet 500 has been detected by the row of image acquisition cameras 303 on the left, the control panel 400 controls the output shafts of the two linear electric cylinders A 605 to contract, so that the inclined sealing frame 606 contacts the row of image acquisition cameras 303 on the left, playing a role in shielding and protecting the lens of the row of image acquisition cameras 303 on the left, and the H-shaped movable frame 601 automatically resets upward under the action of the two spiral springs 603; then, the control panel 400 controls the output shafts of the two servo motors 203 to rotate forward, so that the carpet 500 at the previous flaw or defect position moves to the lower part of the row of image acquisition cameras 303 on the right again. When a row of image acquisition cameras 303 on the right detects a flaw or defect at the corresponding position, it indicates that there is debris on the lens of the row of image acquisition cameras 303 on the right; when a row of image acquisition cameras 303 on the right does not detect a flaw or defect at the corresponding position, it indicates that there is debris at the previous flaw or defect position of the carpet 500;When there are defects in the carpet 500 after re-inspection, the control panel 400 controls the output shafts of the two linear electric cylinders B705 to extend, so that the dye-absorbing cotton 708 automatically contacts the bottom of the carpet 500, which plays a role in recording the defective parts of the carpet 500, facilitating the subsequent search for the defective parts of the carpet 500 by the staff, and is beneficial to improving the repair efficiency of the defective parts; it is convenient for the staff to judge the grade of the carpet 500. When there are no defects in the carpet 500 after inspection, the produced carpet 500 is a qualified product; when there are defects in the carpet 500 after inspection, the grade of the carpet 500 is judged according to the triangular observation mark 3011. When the movable recording seat 701 rotates more than one circle, it is all processed according to the D-class grade. When the movable recording seat 701 rotates less than one circle, the corresponding grade (A-class, B-class, C-class or D-class) is judged according to the area pointed to by the triangular observation mark 3011, which is beneficial to subsequent discount sales according to the grade; when the dye-absorbing cotton 708 moves upward, the movable recording seat 701 rotates a certain angle. When the dye-absorbing cotton 708 moves downward, the movable recording seat 701 does not rotate under the resistance of the movable positioning head 703, realizing the one-way automatic rotation of the movable recording seat 701.;

[0071] In this article, the following points need to be noted:

[0072] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0073] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0074] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A surface defect detection device for carpet production, used to detect the surface of a carpet (500); comprising a mounting base plate (100); two sets of rotary drive parts (200) are mounted on the top of the mounting base plate (100), and the two sets of rotary drive parts (200) are used to move the carpet (500); characterized in that, The top of the installation base plate (100) is equipped with a defect detection unit (300), and the defect detection unit (300) is located between two sets of rotation drive units (200); a control panel (400) is installed on the front side of the defect detection unit (300); a re-inspection judgment unit (600) is installed on the defect detection unit (300), and the re-inspection judgment unit (600) is used to improve the detection accuracy of the defect detection unit (300); a grade confirmation unit (700) is installed on the installation base plate (100) and the defect detection unit (300), and the grade confirmation unit (700) is used to confirm the grade of the carpet (500) after detection; The defect detection unit (300) includes: a U-shaped frame (301); the U-shaped frame (301) is installed on the top of the installation base plate (100) by screws, and a triangular observation mark (3011) is provided on the front side of the U-shaped frame (301), and a circular arc groove (3012) is also provided on the front side of the U-shaped frame (301); The grade confirmation unit (700) includes: a movable recording seat (701), a ratchet mechanism (702), a linear cylinder B (705), a rectangular housing (706), a linear rack (707) and a dye absorption cotton (708); the movable recording seat (701) is rotatably installed on the U-shaped frame (301); the ratchet mechanism (702) is fixedly installed at the rear end of the movable recording seat (701); there are two linear cylinders B (705) in total, and the two linear cylinders B (705) are fixedly installed on the top of the installation base plate (100), and the two linear cylinders B (705) are also electrically connected to the control panel (400); the rectangular housing (706) is fixedly installed on the output shafts of the two linear cylinders B (705); the linear rack (707) is fixedly installed at the bottom of the rectangular housing (706), and the linear rack (707) is also meshed with the ratchet mechanism (702); the dye absorption cotton (708) is installed inside the rectangular housing (706); When there are no defects in the carpet (500) after detection, the produced carpet (500) is a qualified product; when there are defects in the carpet (500) after detection, the grade of the carpet (500) is judged according to the triangular observation mark (3011). When the movable recording seat (701) rotates more than one circle, it is all processed according to the D-class grade. When the movable recording seat (701) rotates less than one circle, the corresponding grade is judged according to the area pointed to by the triangular observation mark (3011).

2. The surface flaw defect detection device for carpet production according to claim 1, characterized in that, The rotation driving part (200) includes: a mounting flat plate (201), a rotation driving roller (202), a servo motor (203), and a connecting gear (204); there are two mounting flat plates (201) in total, and the two mounting flat plates (201) are mounted on the top of the mounting bottom plate (100) by screws; there are two rotation driving rollers (202) in total, and the two rotation driving rollers (202) are rotatably mounted on the mounting flat plate (201); the servo motor (203) is mounted on the front mounting flat plate (201) by screws, and the output shaft of the servo motor (203) is also fixedly connected to the lower rotation driving roller (202), and the servo motor (203) is also electrically connected to the control panel (400); there are two connecting gears (204) in total, and the two connecting gears (204) are fixedly mounted on the rear ends of the two rotation driving rollers (202), and the two connecting gears (204) are meshed and connected.

3. The surface defect detection device for carpet production according to claim 2, wherein, The defect detection part (300) further includes: a support flat plate (302), an image acquisition camera (303), and a limit knob (304); the support flat plate (302) is fixedly mounted on the U-shaped frame (301); there are two rows of image acquisition cameras (303) in total, and the two rows of image acquisition cameras (303) are slidably mounted on the U-shaped frame (301), and the two rows of image acquisition cameras (and the two rows of image acquisition cameras (303) are also electrically connected to the control panel (400); there are two rows of limit knobs (304) in total, and the two rows of limit knobs (304) are threadedly connected to the U-shaped frame (301), and the inner ends of the two rows of limit knobs (304) are in contact with the two rows of image acquisition cameras (303).

4. A surface flaw defect detection device for carpet production according to claim 3, characterized in that, The re-inspection and judgment part (600) includes: an H-shaped movable frame (601), a cleaning brush (602), and a spiral spring (603); the H-shaped movable frame (601) is slidably mounted on the U-shaped frame (301); the cleaning brush (602) is fixedly mounted on the bottom of the H-shaped movable frame (601); there are two spiral springs (603) in total, and the two spiral springs (603) are sleeved on the outside of the H-shaped movable frame (601), and the two spiral springs (603) are located above the U-shaped frame (301).

5. The surface defect detection device for carpet production according to claim 4, characterized in that, The re-inspection and judgment part (600) further includes: a mounting bar (604), a linear cylinder A (605), and an inclined sealing frame (606); the mounting bar (604) is mounted on the U-shaped frame (301) by screws; there are two linear cylinders A (605) in total, and the two linear cylinders A (605) are fixedly mounted on the mounting bar (604), and the two linear cylinders A (605) are also electrically connected to the control panel (400); the inclined sealing frame (606) is fixedly mounted on the output shafts of the two linear cylinders A (605), and the top of the inclined sealing frame (606) is in contact with the left row of image acquisition cameras (303), and the bottom of the inclined sealing frame (606) is in contact with the H-shaped movable frame (601).

6. The surface defect detection device for carpet production according to claim 5, wherein The level confirmation unit (700) further includes: a movable positioning head (703); the movable positioning head (703) is slidably mounted on the movable recording seat (701), and the rear end of the movable positioning head (703) is provided with a rounded corner, and the rear end of the movable positioning head (703) is inserted into the corresponding arc-shaped groove (3012).

7. The surface defect detection device for carpet production according to claim 6, characterized in that, The level confirmation unit (700) further includes: a return tension spring (704); the return tension spring (704) is sleeved outside the movable positioning head (703), and the front end of the return tension spring (704) is fixedly connected to the movable positioning head (703), and the rear end of the return tension spring (704) is fixedly connected to the movable recording seat (701).

8. A surface defect detection method for carpet production, characterized in that, Use a surface defect detection device for carpet production as described in claim 7, and the steps are as follows: 1). Pass the carpet (500) to be detected through the two rotary drive rollers (202) at the left and right ends, so that the bottom of the carpet (500) contacts the support flat plate (302); 2). Start the two servo motors (203) and the two rows of image acquisition cameras (303) through the control panel (400). When a defect is detected on the carpet (500) by the row of image acquisition cameras (303) on the right side, the control panel (400) controls the output shafts of the two linear electric cylinders A (605) to extend, and then the control panel (400) controls the output shafts of the two servo motors (203) to rotate in the reverse direction, so that the carpet (500) with the defect moves reversely to the lower part of the row of image acquisition cameras (303) on the left side; 3). When the detection of the carpet (500) by the row of image acquisition cameras (303) on the left side is completed, the control panel (400) controls the output shafts of the two linear electric cylinders A (605) to contract, and then the control panel (400) controls the output shafts of the two servo motors (203) to rotate in the forward direction, so that the carpet (500) at the previous defective part moves to the lower part of the row of image acquisition cameras (303) on the right side again; 4). When a defect is found on the carpet (500) after reinspection, the control panel (400) controls the output shafts of the two linear electric cylinders B (705) to extend, so that the dye-absorbing cotton (708) automatically contacts the bottom of the carpet (500); 5). When a defect is found on the detected carpet (500), judge the level of the carpet (500) according to the triangular observation mark (3011). When the movable recording seat (701) rotates more than one circle, it is all processed according to the D-class level; when the movable recording seat (701) does not rotate more than one circle, judge the corresponding level according to the area pointed to by the triangular observation mark (3011).

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