Surface defect detection device and anti-ultraviolet fabric defect intelligent detection method

Abstract

The invention discloses a surface defect detection device and an intelligent anti-ultraviolet fabric defect detection method, and relates to the field of detection.The surface defect detection device comprises a rack, a release roller and a winding roller are arranged on the rack, and a tail section stabilizing assembly, a pressing assembly, an identification assembly and a visual sensor are arranged on the rack; the identification assembly comprises an adjusting unit, a cutting unit, an adsorption unit and a dispensing unit, the cutting unit comprises an upper cutting knife and a lower cutting knife, and the fabric is located between the upper cutting knife and the lower cutting knife. A material strip is moved out of the side edge of a fabric, so that after the fabric is rolled, the material strip can be located on the side face of a fabric coiled material, the defect degree of the fabric coiled material can be clearly observed, the defect position of the fabric coiled material can be conveniently positioned, the defect fabric can be conveniently cut off, the tail section of the fabric is detected by a visual sensor, and the defect degree of the fabric coiled material is improved. In the detection process, the fabric is kept tight, inaccurate detection data of the tail section of the fabric is prevented, and the defect detection accuracy of the fabric is improved.

Description

Technical Field

[0001] The present invention relates to the field of detection, and in particular to a surface defect detection device and an intelligent detection method for defects of ultraviolet-resistant fabrics. Background Art

[0002] Defects may affect the strength, durability and other properties of the fabric. Severe defects may also cause damage to clothing during wearing, posing a threat to consumer safety. These safety hazards can be eliminated through defect detection. During the production process, defect detection can help companies promptly discover problems in production equipment, process parameters, etc., so that they can quickly take measures to adjust and improve them, avoid producing a large number of defective products, and improve production efficiency.

[0003] Fabric defect detection is an important part of ensuring fabric quality. The following are some common fabric defect detection methods. Manual inspection includes a comprehensive visual inspection of the fabric surface to detect defects such as broken warp and weft, thick sections, coarse warp and weft, loose edges, pilling, stains, holes, etc. Industrial textile defect detection system: composed of high-precision linear array cameras, linear array LED light sources, detection software, algorithm models, and high-performance computers, it can detect two types of defects: those viewed against light and those viewed through light.

[0004] Chinese patent CN111024720B discloses a visual and tactile integrated detection device for raised defects on fabric surfaces. The device includes a fabric transport device, a fabric tensioning device, a pressure sensing device, an image acquisition device, and a laser marking device. Combining pressure-sensitive tactile detection with machine vision, it significantly improves the accuracy of detecting small raised defects on fabric surfaces, speeds up detection, reduces labor costs, and is simple to operate, effectively improving production efficiency in textile workshops.

[0005] Chinese patent application CN115524199A discloses a down jacket fabric defect identification and inspection device, including a first defect identification and inspection module and a second defect identification and inspection module, wherein the first defect identification and inspection module and the second defect identification and inspection module have the same structure, and a dust removal module for removing debris from the fabric surface and a dust removal module for removing dust from the fabric surface are provided between the first defect identification and inspection module and the second defect identification and inspection module. By providing the dust removal module and the dust removal module between the first defect identification and inspection module and the second defect identification and inspection module, the dust removal module and the dust removal module are used to remove debris and dust on the fabric surface respectively, thereby solving the problem of accurate identification of defects affected by debris and dust remaining on the fabric, and with the help of the second defect identification and inspection module, the effect of accurately detecting and identifying defects is achieved.

[0006] The prior art also has the following defects:

[0007] Through two winding rollers, one for releasing the fabric roll and the other for winding the fabric roll, a defect detection is carried out by a sensor in between. However, when the release of the fabric roll is completed, the tail of the fabric is released, resulting in the fabric being relaxed and unable to be tightened. And the tail of the fabric is at a certain distance from the sensor, and this part of the fabric is prone to folding and wrinkling, resulting in inaccurate detection data. Moreover, the fabric with defects cannot be positioned at the defect location after winding. When there are few defects and the fabric still has use value, it is impossible to accurately find the location of the fabric defects, and thus it is impossible to cut off the defective part and utilize the remaining parts, which has limitations.

[0008] Therefore, the present application provides a surface defect detection device and an intelligent detection method for anti-ultraviolet fabric defects to meet the requirements. Summary of the Invention

[0009] The purpose of the present application is to provide a surface defect detection device and an intelligent detection method for anti-ultraviolet fabric defects. Through a vision sensor, the defects on the fabric are identified. After identification, a strip of material is cut out from the side of the fabric defect position and moved outside the side of the fabric. After the fabric is wound, the strip of material can be located on the side of the fabric roll, enabling the defect degree of the fabric roll to be clearly observed and the defect position of the fabric roll to be conveniently located, facilitating the excision of the defective fabric when the fabric on the release roller is completely released, the tail section stabilizing component clamps the tail of the fabric and moves horizontally with the fabric, enabling the tail section of the fabric to pass through the detection of the vision sensor, keeping the fabric taut during the detection process, preventing inaccurate detection data of the tail section of the fabric, and improving the accuracy of fabric defect detection.

[0010] To achieve the above object, the present application provides the following technical solution: A surface defect detection device, including a frame, a release roller and a winding roller are arranged on the frame, and a tail section stabilizing component, a pressing component, an identification component and a vision sensor are arranged on the frame;

[0011] The identification component includes an adjustment unit, a cutting unit, an adsorption unit and a glue application unit. The cutting unit includes two upper cutting knives and a lower cutting knife. The fabric is located between the upper cutting knife and the lower cutting knife. The upper cutting knife and the lower cutting knife are arranged in a U shape and can move relative to each other;

[0012] The adsorption unit includes an adsorption head, and the adsorption head can move to abut against the fabric. The glue application unit can apply glue on the fabric;

[0013] The adjustment unit can drive the cutting unit, the adsorption unit and the glue application unit to move horizontally;

[0014] The pressing assembly can press the fabric tightly. The tail section stabilizing assembly includes a moving unit and a clamping unit. The moving unit can drive the clamping unit to move horizontally. The clamping unit includes an upper pressing plate and a lower pressing plate, and the lower pressing plate can move vertically.

[0015] Preferably, the cutting unit further includes an upper cutting plate, a lower cutting plate and a return spring. The upper cutting plate can move vertically. The upper cutting knife is fixedly installed at the bottom of the upper cutting plate. The lower cutting knife is fixedly installed at the top of the lower cutting plate. The top of the return spring is fixedly installed on the upper cutting knife, and the bottom of the return spring is fixedly installed on the lower cutting knife.

[0016] Preferably, the clamping unit further includes a clamping cylinder and a moving block. The clamping cylinder is fixedly installed on the upper pressing plate. The lower pressing plate is fixedly installed at the output end of the clamping cylinder. Anti-slip grooves are formed on both the upper pressing plate and the lower pressing plate. The moving block is fixedly installed at the end of the upper pressing plate.

[0017] Preferably, the moving unit includes a moving motor, a moving screw rod and a stabilizing bar. The moving motor is fixedly installed on the frame. The moving screw rod is rotatably connected to the frame. One end of the moving screw rod is fixedly installed at the output end of the moving motor. The moving block is sleeved on the moving screw rod and is threadedly connected to the moving screw rod. The stabilizing bar is fixedly installed on the frame. A moving groove is formed on the stabilizing bar corresponding to the moving block, and the moving block is slidably fitted in the moving groove.

[0018] Preferably, the cutting unit further includes a sliding frame and a sliding rod. The sliding frame is fixedly installed on the lower cutting plate. One end of the sliding rod is fixedly installed on the sliding frame, and the other end of the sliding rod is fixedly installed on the lower cutting plate. The upper cutting plate is sleeved on the sliding rod and is slidably fitted with the sliding rod. The return spring is sleeved on the sliding rod.

[0019] Preferably, the adjusting unit includes an adjusting motor, a bidirectional screw rod, a stabilizing bar and an adjusting block. The bidirectional screw rod is rotatably connected to the frame. The adjusting motor is fixedly installed on the frame. The thread directions at both ends of the bidirectional screw rod are opposite. The bidirectional screw rod is fixedly installed at the output end of the adjusting motor. The adjusting block is sleeved on the bidirectional screw rod and is threadedly connected to the bidirectional screw rod. The stabilizing bar is fixedly installed on the frame. The stabilizing bar penetrates through the adjusting block and is slidably fitted with the adjusting block. The cutting unit further includes a cutting cylinder. The cutting cylinder is fixedly installed on the adjusting block, and the upper cutting plate is fixedly installed on the cutting cylinder.

[0020] Preferably, the dispensing unit includes a dispensing tube, a dispensing head, a pushing piston, a pushing rod, a pushing cylinder, and a glue supply tube. The dispensing tube is fixedly installed on the upper cutting plate. The dispensing head is fixedly installed at the bottom of the dispensing tube. The pushing piston is slidably fitted in the dispensing tube. The pushing rod is fixedly installed on the pushing piston. The other end of the pushing rod is fixedly installed at the output end of the pushing cylinder. The glue supply tube is fixed and communicated with the dispensing head. A one-way valve is installed in the glue supply tube. The adsorption unit further includes a vacuum pump and a vacuum tube. The adsorption head is fixedly installed on the upper cutting plate. The vacuum pump is fixedly installed on the upper cutting plate. One end of the vacuum tube is fixedly installed on the vacuum pump, and the other end of the vacuum tube is fixedly installed on the adsorption head.

[0021] Preferably, the pressing assembly includes an upper pressing roller, a lower pressing roller, an adjustment frame, an adjustment cylinder, and a connecting block. The lower pressing roller is rotatably connected to the adjustment frame. The upper pressing roller is rotatably connected to the connecting block. The connecting block is slidably fitted in the adjustment frame. The adjustment cylinder is fixedly installed on the adjustment frame. The connecting block is fixedly installed at the output end of the adjustment cylinder.

[0022] Preferably, a release motor and a winding motor are fixedly installed on the frame. The release roller is fixedly installed at the output end of the release motor. The winding roller is fixedly installed at the output end of the winding motor. A guide roller is rotatably connected to the frame. A stabilizing plate is fixedly installed on the frame. A sliding groove is provided on the stabilizing plate corresponding to the marking assembly.

[0023] An intelligent detection method for ultraviolet-resistant fabric defects uses the above surface defect detection device and includes the following steps:

[0024] Install the fabric roll on the release roller, and wind one end of the fabric around the winding roller through the pressing assembly, the tail section stabilizing assembly, and the marking assembly;

[0025] During this process, the vision sensor detects the defects of the fabric;

[0026] After the fabric identified by the vision sensor has defects, when the position of the fabric defect moves to the position of the marking assembly, the upper cutting knife and the lower cutting knife move relative to each other, and the upper cutting knife and the lower cutting knife cut the fabric. A strip of fabric is cut out and one end of the strip is connected to the fabric. The dispensing unit drops glue onto the fabric;

[0027] The adsorption unit adsorbs the strip through the adsorption head. The adsorption head and the upper cutting knife move upward. The adsorption head drives the strip to move. The adjustment unit drives the adsorption head to move horizontally. The adsorption head drives the strip to move horizontally. The strip is folded on the fabric and adhered by the glue. The end of the strip extends beyond the side of the fabric;

[0028] After the fabric on the release roller is completely released, the lower pressing plate moves to clamp the tail of the fabric on the upper pressing plate. The upper pressing plate and the lower pressing plate move horizontally with the fabric to tighten the fabric until the tail of the fabric moves to the position of the identification component.

[0029] Preferably, the fabric in the fabric roll is anti-ultraviolet fabric.

[0030] In summary, the technical effects and advantages of the present invention are as follows:

[0031] 1. In the present invention, through the visual sensor, the defects on the fabric are identified. After identification, the side of the fabric defect position is cut into a strip, and the strip is moved outside the side of the fabric, so that after the fabric is wound, the strip can be located on the side of the fabric roll, the defect degree of the fabric roll can be clearly observed, and the defect position of the fabric roll can be conveniently located, facilitating the excision of the defective fabric.

[0032] 2. In the present invention, after the fabric on the release roller is completely released, the tail section stabilizing component clamps the tail of the fabric and moves horizontally with the fabric, so that the tail section of the fabric passes through the detection of the visual sensor, and the fabric is kept taut during the detection process, preventing inaccurate detection data of the tail section of the fabric and improving the accuracy of fabric defect detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is one of the three-dimensional structure diagrams of the present invention;

[0035] Figure 2 It is the second three-dimensional structure diagram of the present invention;

[0036] Figure 3 For the present invention Figure 2 The enlarged view of part A;

[0037] Figure 4 For the present invention Figure 2 The enlarged view of part B;

[0038] Figure 5 It is the third three-dimensional structure diagram of the present invention;

[0039] Figure 6 For the present invention Figure 5 The enlarged view of part C;

[0040] Figure 7Fourth schematic diagram of the three-dimensional structure of the present invention;

[0041] Figure 8 Fifth schematic diagram of the three-dimensional structure of the present invention;

[0042] Figure 9 In the present invention Figure 8 Enlarged view of part D;

[0043] Figure 10 Schematic diagram of the structures of the upper cutting plate, lower cutting plate, upper cutting knife and lower cutting knife in the present invention;

[0044] Figure 11 Schematic diagram of the structures of the suction head, dispensing head and dispensing tube in the present invention;

[0045] Figure 12 Schematic diagram of the identification component located at the initial position in the present invention;

[0046] Figure 13 Schematic diagram of the position of the identification component after movement in the present invention.

[0047] In the figure: 1, frame; 2, release roller; 3, winding roller; 4, tail section stabilizing component; 41, moving unit; 411, moving motor; 412, moving screw; 42, clamping unit; 421, upper pressing plate; 422, lower pressing plate; 423, clamping cylinder; 424, moving block; 5, pressing component; 51, upper pressing roller; 52, lower pressing roller; 53, adjusting frame; 54, adjusting cylinder; 6, identification component; 61, adjusting unit; 611, adjusting motor; 612, bidirectional screw; 613, adjusting block; 62, cutting unit; 621, upper cutting knife; 622, lower cutting knife; 623, return spring; 624, upper cutting plate; 625, lower cutting plate; 626, sliding frame; 627, sliding rod; 628, cutting cylinder; 63, suction unit; 631, suction head; 632, vacuum pump; 64, dispensing unit; 641, dispensing tube; 642, dispensing head; 643, pushing piston; 644, pushing rod; 645, pushing cylinder; 646, glue supply tube; 7, vision sensor; 8, winding motor; 9, guiding roller; 10, stabilizing plate; 11, release motor. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] Embodiment 1: Refer to Figures 1-13A surface defect detection device shown in the figure includes a frame 1, on which a release roller 2 and a winding roller 3 are arranged. A tail section stabilizing component 4, a pressing component 5, an identification component 6 and a vision sensor 7 are arranged on the frame 1;

[0050] The identification component 6 includes an adjustment unit 61, a cutting unit 62, a suction unit 63 and a glue dispensing unit 64. The cutting unit 62 includes two upper cutting knives 621 and a lower cutting knife 622. The fabric is located between the upper cutting knife 621 and the lower cutting knife 622. The upper cutting knife 621 and the lower cutting knife 622 are arranged in a U shape and can move relatively;

[0051] The suction unit 63 includes a suction head 631, which can move to abut against the fabric. The glue dispensing unit 64 can coat glue on the fabric;

[0052] The adjustment unit 61 can drive the cutting unit 62, the suction unit 63 and the glue dispensing unit 64 to move horizontally;

[0053] The pressing component 5 can press the fabric tightly. The tail section stabilizing component 4 includes a moving unit 41 and a clamping unit 42. The moving unit 41 can drive the clamping unit 42 to move horizontally. The clamping unit 42 includes an upper pressing plate 421 and a lower pressing plate 422, and the lower pressing plate 422 can move vertically.

[0054] Install the fabric roll on the release roller 2, and wind one end of the fabric around the winding roller 3 through the pressing component 5, the tail section stabilizing component 4 and the identification component 6. During this process, the vision sensor 7 detects the defects of the fabric. After a defect occurs, when the position of the fabric defect moves to the position of the identification component 6, the upper cutting knife 621 and the lower cutting knife 622 move relatively, and the upper cutting knife 621 and the lower cutting knife 622 cut the fabric. A strip of fabric is cut out from the fabric, and one end of the strip is connected to the fabric. The glue dispensing unit 64 drops glue onto the fabric. The suction unit 63 adsorbs the strip through the suction head 631. The suction head 631 and the upper cutting knife 621 move upward. The suction head 631 drives the strip to move. The adjustment unit 61 drives the suction head 631 to move horizontally. The suction head 631 drives the strip to move horizontally. The strip is folded on the fabric and bonded by glue. The end of the strip extends beyond the side of the fabric. When the fabric on the release roller 2 is completely released, the lower pressing plate 422 moves to clamp the tail of the fabric on the upper pressing plate 421. The upper pressing plate 421 and the lower pressing plate 422 move horizontally following the fabric to tighten the fabric until the tail of the fabric moves to the position of the identification component 6.

[0055] Defects on the fabric are identified by the visual sensor 7. After identification, a strip of material is cut out from the side of the defective fabric position, and the strip of material is moved to the outside of the side of the fabric so that after the fabric is rolled up, the strip of material can be located on the side of the fabric roll, the degree of defect of the fabric roll can be clearly observed, and the defective position of the fabric roll can be easily located, making it convenient to cut off the defective fabric.

[0056] When the fabric on the release roller 2 is completely released, the tail section stabilizing component 4 clamps the tail of the fabric and moves horizontally with the fabric, so that the tail section of the fabric passes through the detection of the visual sensor 7. During the detection process, the fabric is kept taut to prevent inaccurate detection data of the tail section of the fabric and improve the accuracy of fabric defect detection.

[0057] The adjustment unit 61 can drive the cutting unit 62, the adsorption unit 63 and the glue dispensing unit 64 to move horizontally, thereby adjusting their positions to adapt to fabrics of different widths.

[0058] Example 2, reference Figures 1-13 , which is different from the above embodiment, is that the cutting unit 62 further includes an upper cutting plate 624, a lower cutting plate 625 and a return spring 623. The upper cutting plate 624 can move vertically, the upper cutting knife 621 is fixedly mounted on the bottom of the upper cutting plate 624, the lower cutting knife 622 is fixedly mounted on the top of the lower cutting plate 625, the top of the return spring 623 is fixedly mounted on the upper cutting knife 621, and the bottom of the return spring 623 is fixedly mounted on the lower cutting knife 622.

[0059] The upper cutting plate 624 descends and squeezes the return spring 623, and the upper cutting plate 624 drives the upper cutting knife 621 to move toward the lower cutting knife 622, so that the upper cutting knife 621 and the lower cutting knife 622 are closed and the fabric between them is cut. After the cutting is completed, the upper cutting plate 624 is reset, and the return spring 623 creates a certain distance between the upper cutting plate 624 and the lower cutting plate 625, so that the fabric moves between them.

[0060] Example 3, reference Figures 1-13 , which is different from the above embodiment, is that the clamping unit 42 also includes a clamping cylinder 423 and a moving block 424. The clamping cylinder 423 is fixedly mounted on the upper pressure plate 421, and the lower pressure plate 422 is fixedly mounted on the output end of the clamping cylinder 423. Anti-slip grooves are provided on the upper pressure plate 421 and the lower pressure plate 422, and the moving block 424 is fixedly mounted on the end of the upper pressure plate 421.

[0061] The clamping cylinder 423 drives the moving block 424 to move, and the moving block 424 drives the lower pressing plate 422 to move upward, and the lower pressing plate 422 clamps the fabric on the upper pressing plate 421.

[0062] Example 4, with reference to Figures 1-13, different from the above embodiments, the moving unit 41 includes a moving motor 411, a moving screw 412 and a stabilizing bar. The moving motor 411 is fixedly installed on the frame 1, the moving screw 412 is rotatably connected to the frame 1, one end of the moving screw 412 is fixedly installed on the output end of the moving motor 411, the moving block 424 is sleeved on the moving screw 412 and is threadedly connected to the moving screw 412, the stabilizing bar is fixedly installed on the frame 1, the stabilizing bar is provided with a moving groove corresponding to the moving block 424, and the moving block 424 is slidably fitted in the moving groove.

[0063] The moving motor 411 drives the moving screw 412 to rotate, the moving block 424 moves on the moving screw 412, the moving block 424 drives the upper pressing plate 421 and the clamping cylinder 423 to move, the clamping cylinder 423 drives the lower pressing plate 422 to move, and the upper pressing plate 421 and the lower pressing plate 422 follow the tail of the fabric to move, tighten the fabric, and prevent inaccurate detection data caused by the slack and wrinkles of the fabric.

[0064] Embodiment 5, refer to Figures 1-13 , different from the above embodiments, the cutting unit 62 further includes a sliding frame 626 and a sliding rod 627. The sliding frame 626 is fixedly installed on the lower cutting plate 625, one end of the sliding rod 627 is fixedly installed on the sliding frame 626, the other end of the sliding rod 627 is fixedly installed on the lower cutting plate 625, the upper cutting plate 624 is sleeved on the sliding rod 627 and is slidably fitted with the sliding rod 627, and the return spring 623 is sleeved on the sliding rod 627.

[0065] The upper cutting plate 624 moves on the sliding rod 627, making the upper cutting plate 624 more stable and not easy to shake.

[0066] Embodiment 6, refer to Figures 1-13 , different from the above embodiments, the adjusting unit 61 includes an adjusting motor 611, a bidirectional screw 612, a stabilizing bar and an adjusting block 613. The bidirectional screw 612 is rotatably connected to the frame 1, the adjusting motor 611 is fixedly installed on the frame 1, the thread directions at both ends of the bidirectional screw 612 are opposite, the bidirectional screw 612 is fixedly installed on the output end of the adjusting motor 611, the adjusting block 613 is sleeved on the bidirectional screw 612 and is threadedly connected to the bidirectional screw 612, the stabilizing bar is fixedly installed on the frame 1, the stabilizing bar penetrates through the adjusting block 613 and is slidably fitted with the adjusting block 613, the cutting unit 62 further includes a cutting cylinder 628, the cutting cylinder 628 is fixedly installed on the adjusting block 613, and the upper cutting plate 624 is fixedly installed on the cutting cylinder 628.

[0067] The adjusting motor 611 drives the bidirectional screw 612 to rotate, the adjusting block 613 moves on the bidirectional screw 612, the adjusting block 613 drives the cutting cylinder 628 to move, and the cutting cylinder 628 drives the upper cutting plate 624 to move, so as to adjust the position and adapt to fabrics of different widths.

[0068] Example 7, referring to Figures 1-13 , which is different from the above embodiments in that the dispensing unit 64 includes a dispensing tube 641, a dispensing head 642, a pushing piston 643, a pushing rod 644, a pushing cylinder 645 and a glue supply tube 646. The dispensing tube 641 is fixedly installed on the upper cutting plate 624. The dispensing head 642 is fixedly installed at the bottom of the dispensing tube 641. The pushing piston 643 is slidably fitted in the dispensing tube 641. The pushing rod 644 is fixedly installed on the pushing piston 643. The other end of the pushing rod 644 is fixedly installed at the output end of the pushing cylinder 645. The glue supply tube 646 is fixed and communicated with the dispensing head 642. A one-way valve is installed in the glue supply tube 646. The adsorption unit 63 further includes a vacuum pump 632 and a vacuum tube. The adsorption head 631 is fixedly installed on the upper cutting plate 624. The vacuum pump 632 is fixedly installed on the upper cutting plate 624. One end of the vacuum tube is fixedly installed on the vacuum pump 632, and the other end of the vacuum tube is fixedly installed on the adsorption head 631.

[0069] The pushing cylinder 645 drives the pushing rod 644 to move downward. The pushing rod 644 drives the pushing piston 643 to move downward. The pushing piston 643 pushes the glue in the dispensing tube 641 downward, and the glue drips onto the fabric through the dispensing head 642. When the pushing cylinder 645 drives the pushing rod 644 to move upward, the glue supply tube 646 feeds the external glue into the dispensing tube 641. The vacuum pump 632 creates a negative pressure in the adsorption head 631, and the adsorption head 631 adsorbs the strip. Then the upper cutting plate 624 rises, the upper cutting plate 624 drives the adsorption head 631 to rise, and the adsorption head 631 drives the strip to move horizontally to fold the strip.

[0070] An upper pressing block is fixedly installed on the upper cutting plate 624, and a lower pressing block is fixedly installed on the lower cutting plate 625. When the upper pressing block and the lower pressing block move to the glue position, the upper cutting plate 624 moves downward, and the upper pressing block and the lower pressing block press the folded strip and the fabric tightly to make the glue bonding more stable.

[0071] Example 8, referring to Figures 1-13 , which is different from the above embodiments in that the pressing assembly 5 includes an upper pressing roller 51, a lower pressing roller 52, an adjustment frame 53, an adjustment cylinder 54 and a connecting block. The lower pressing roller 52 is rotatably connected to the adjustment frame 53. The upper pressing roller 51 is rotatably connected to the connecting block. The connecting block is slidably fitted in the adjustment frame 53. The adjustment cylinder 54 is fixedly installed on the adjustment frame 53. The connecting block is fixedly installed at the output end of the adjustment cylinder 54.

[0072] The adjusting cylinder 54 can drive the connecting block and the upper pressing roller 51 to move, adjust the pressing force, so that after the tail of the fabric is separated from the release roller 2, the fabric can still be kept taut until the tail of the fabric is clamped by the upper pressing plate 421 and the lower pressing plate 422, and then the adjusting cylinder 54 drives the upper pressing roller 51 to move upward, so that the upper pressing plate 421 and the lower pressing plate 422 can pass through smoothly.

[0073] Example 9, referring to Figures 1-13 , which is different from the above embodiment in that a release motor 11 and a winding motor 8 are fixedly installed on the frame 1, the release roller 2 is fixedly installed at the output end of the release motor 11, the winding roller 3 is fixedly installed at the output end of the winding motor 8, a guiding roller 9 is rotatably connected to the frame 1, a stabilizing plate 10 is fixedly installed on the frame 1, and a sliding groove is formed in the stabilizing plate 10 corresponding to the marking assembly 6.

[0074] The winding motor 8 drives the winding roller 3 to rotate, and the release motor 11 drives the release roller 2 to rotate to release and wind the fabric.

[0075] The stabilizing plate 10 supports the lower cutting plate 625, so that the lower cutting plate 625 will not continue to descend after abutting against the stabilizing plate 10, and the upper cutting plate 624 approaches the lower cutting plate 625.

[0076] The lower cutting plate 625 can move in the sliding groove.

[0077] Example 9

[0078] An intelligent detection method for fabric defects uses the above surface defect detection device, including the following steps:

[0079] Install the fabric roll on the release roller 2, and wind one end of the fabric around the winding roller 3 through the pressing assembly 5, the tail section stabilizing assembly 4 and the marking assembly 6;

[0080] During this process, the vision sensor 7 detects the defects of the fabric;

[0081] After the fabric recognized by the vision sensor 7 has defects, when the position of the fabric defect moves to the position of the marking assembly 6, the upper cutting knife 621 and the lower cutting knife 622 move relatively, the upper cutting knife 621 and the lower cutting knife 622 cut the fabric, a strip of fabric is cut out from the fabric and one end of the strip is connected to the fabric, and the dispensing unit 64 drops glue onto the fabric;

[0082] The adsorption unit 63 adsorbs the strip through the adsorption head 631, the adsorption head 631 and the upper cutting knife 621 move upward, the adsorption head 631 drives the strip to move, the adjustment unit 61 drives the adsorption head 631 to move horizontally, the adsorption head 631 drives the strip to move horizontally, the strip is folded on the fabric and adhered by glue, and the end of the strip extends beyond the side of the fabric;

[0083] After the fabric on the release roller 2 is completely released, the lower pressing plate 422 moves to clamp the tail of the fabric on the upper pressing plate 421. The upper pressing plate 421 and the lower pressing plate 422 move horizontally with the fabric to tighten the fabric until the tail of the fabric moves to the position of the identification component 6.

[0084] Preferably, the fabric is an anti-ultraviolet fabric.

[0085] A method for preparing an anti-ultraviolet fabric includes the following steps:

[0086] Mix rutile-type nano titanium dioxide and ethanol, ultrasonically disperse, add a silane coupling agent, adjust the pH value, and react. After the reaction is completed, an anti-ultraviolet finishing solution is obtained; dip the polyester-cotton fabric in the anti-ultraviolet finishing solution, and after dipping and rolling, dry it to obtain the anti-ultraviolet fabric.

[0087] Preferably, in terms of parts by mass, the anti-ultraviolet finishing solution includes the following components: 10-50 parts of rutile-type nano titanium dioxide, 0.1-0.5 parts of silane coupling agent, and 1000 parts of ethanol.

[0088] Further, the silane coupling agent is one of KH-550, KH-560, and KH-570.

[0089] Preferably, when preparing the anti-ultraviolet finishing solution, the reaction conditions are: reacting at a pH value of 6-8 and a temperature of 70-90 °C for 1-3 h.

[0090] Preferably, when preparing the anti-ultraviolet fabric, the bath ratio of the polyester-cotton fabric to the anti-ultraviolet finishing solution is 1:20-30; the dipping and rolling operation includes: two-dip two-roll at room temperature, and the pick-up rate is 80-100%.

[0091] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A surface defect detection device, comprising a frame, characterized in that: A release roller and a winding roller are arranged on the frame, and a tail section stabilizing component, a pressing component, an identification component and a vision sensor are arranged on the frame; The identification component includes an adjustment unit, a cutting unit, a suction unit and a dispensing unit. The cutting unit includes two upper cutting knives and a lower cutting knife. The fabric is located between the upper cutting knife and the lower cutting knife. The upper cutting knife and the lower cutting knife are arranged in a U shape and can move relative to each other; The suction unit includes a suction head which can move to abut against the fabric, and the dispensing unit can coat glue on the fabric; The adjustment unit can drive the cutting unit, the suction unit and the dispensing unit to move horizontally; The pressing component can press the fabric. The tail section stabilizing component includes a moving unit and a clamping unit. The moving unit can drive the clamping unit to move horizontally. The clamping unit includes an upper pressing plate and a lower pressing plate, and the lower pressing plate can move vertically.

2. The surface defect detection device according to claim 1, wherein: The cutting unit further includes an upper cutting plate, a lower cutting plate and a return spring. The upper cutting plate can move vertically. The upper cutting knife is fixedly installed at the bottom of the upper cutting plate, and the lower cutting knife is fixedly installed at the top of the lower cutting plate. The top of the return spring is fixedly installed on the upper cutting knife, and the bottom of the return spring is fixedly installed on the lower cutting knife.

3. The surface defect detection device according to claim 1, characterized in that: The clamping unit further includes a clamping cylinder and a moving block. The clamping cylinder is fixedly installed on the upper pressing plate, the lower pressing plate is fixedly installed at the output end of the clamping cylinder, anti-slip grooves are formed in both the upper pressing plate and the lower pressing plate, and the moving block is fixedly installed at the end of the upper pressing plate.

4. The surface defect detection device according to claim 3, wherein: The moving unit includes a moving motor, a moving screw rod and a stabilizing strip. The moving motor is fixedly installed on the frame, the moving screw rod is rotatably connected to the frame, one end of the moving screw rod is fixedly installed at the output end of the moving motor, the moving block is sleeved on the moving screw rod and is in threaded connection with the moving screw rod, the stabilizing strip is fixedly installed on the frame, a moving groove is formed in the stabilizing strip corresponding to the moving block, and the moving block is slidably matched in the moving groove.

5. The surface defect detection device according to claim 2, wherein: The cutting unit further includes a sliding frame and a sliding rod. The sliding frame is fixedly installed on the lower cutting plate, one end of the sliding rod is fixedly installed on the sliding frame, the other end of the sliding rod is fixedly installed on the lower cutting plate, the upper cutting plate is sleeved on the sliding rod and is slidably matched with the sliding rod, and the return spring is sleeved on the sliding rod.

6. The surface defect detection device according to claim 2, characterized in that: The adjustment unit includes an adjustment motor, a bidirectional screw rod, a stabilizing strip and an adjustment block. The bidirectional screw rod is rotatably connected to the frame, the adjustment motor is fixedly installed on the frame, the thread directions at both ends of the bidirectional screw rod are opposite, the bidirectional screw rod is fixedly installed at the output end of the adjustment motor, the adjustment block is sleeved on the bidirectional screw rod and is in threaded connection with the bidirectional screw rod, the stabilizing strip is fixedly installed on the frame, the stabilizing strip penetrates through the adjustment block and is slidably matched with the adjustment block. The cutting unit further includes a cutting cylinder, the cutting cylinder is fixedly installed on the adjustment block, and the upper cutting plate is fixedly installed on the cutting cylinder.

7. The surface defect detection device according to claim 2, characterized in that: The dispensing unit includes a dispensing tube, a dispensing head, a pushing piston, a pushing rod, a pushing cylinder, and a glue supply tube. The dispensing tube is fixedly installed on the upper cutting plate. The dispensing head is fixedly installed at the bottom of the dispensing tube. The pushing piston is slidably fitted in the dispensing tube. The pushing rod is fixedly installed on the pushing piston. The other end of the pushing rod is fixedly installed at the output end of the pushing cylinder. The glue supply tube is fixed and communicated with the dispensing head. A one-way valve is installed in the glue supply tube. The adsorption unit further includes a vacuum pump and a vacuum tube. The adsorption head is fixedly installed on the upper cutting plate. The vacuum pump is fixedly installed on the upper cutting plate. One end of the vacuum tube is fixedly installed on the vacuum pump, and the other end of the vacuum tube is fixedly installed on the adsorption head.

8. The surface defect detection device according to claim 1, characterized in that: The pressing assembly includes an upper pressing roller, a lower pressing roller, an adjustment frame, an adjustment cylinder, and a connecting block. The lower pressing roller is rotatably connected to the adjustment frame. The upper pressing roller is rotatably connected to the connecting block. The connecting block is slidably fitted in the adjustment frame. The adjustment cylinder is fixedly installed on the adjustment frame. The connecting block is fixedly installed at the output end of the adjustment cylinder.

9. The surface defect detection device according to claim 1, characterized in that: A release motor and a winding motor are fixedly installed on the frame. The release roller is fixedly installed at the output end of the release motor. The winding roller is fixedly installed at the output end of the winding motor. A guiding roller is rotatably connected to the frame. A stabilizing plate is fixedly installed on the frame. A sliding groove is provided on the stabilizing plate corresponding to the marking assembly.

10. An intelligent detection method for ultraviolet-resistant fabric defects, which uses the surface defect detection device described in any one of claims 1-9, and is characterized in that: including the following defects: Install the fabric roll on the release roller, and wind one end of the fabric around the winding roller through the pressing assembly, the tail section stabilizing assembly, and the marking assembly; During this process, the visual sensor detects the defects of the fabric; After the fabric identified by the visual sensor has defects, when the defective position of the fabric moves to the position of the marking assembly, the upper cutting knife and the lower cutting knife move relative to each other, and the upper cutting knife and the lower cutting knife cut the fabric. A strip of material is cut out from the fabric, and one end of the strip is connected to the fabric. The dispensing unit drips glue onto the fabric; The adsorption unit adsorbs the strip through the adsorption head. The adsorption head and the upper cutting knife move upward. The adsorption head drives the strip to move. The adjustment unit drives the adsorption head to move horizontally. The adsorption head drives the strip to move horizontally. The strip folds on the fabric and is bonded by glue. The end of the strip extends beyond the side of the fabric; When the fabric on the release roller is completely released, the lower pressing plate moves to clamp the tail of the fabric on the upper pressing plate. The upper pressing plate and the lower pressing plate move horizontally with the fabric to tighten the fabric until the tail of the fabric moves to the position of the marking assembly.

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