A defect flaw detection device and method based on new material cloth printing and dyeing

Abstract

This invention discloses a defect detection device and method for dyeing and printing fabrics based on new materials, belonging to the field of dyeing and printing defect detection technology. It includes a frame and a fabric body. Support legs are fixed at each of the four corners of the lower end of the frame. Sliding grooves are formed on both sides of the frame. Batteries are installed at both ends of the frame. A drive motor is fixed to one end of the frame. A drive shaft is fixed to the drive end of the drive motor. A drive synchronous pulley is fixed to the other end of the drive shaft. The drive synchronous pulley is connected to a driven synchronous pulley via a synchronous belt. A driven shaft is fixed to the middle of the driven synchronous pulley. This invention achieves dynamic visual inspection, performing multi-view, large depth-of-field, and full-coverage dynamic optical scanning on the moving dyed and printed fabric body. It completely eliminates the detection blind spots of traditional fixed cameras, effectively identifying minute surface defects and internal hidden dyeing defects, significantly improving the accuracy and comprehensiveness of fabric defect detection.

Description

Technical Field

[0001] This invention relates to the field of dyeing and printing defect detection technology, specifically to a defect detection device and method based on new material fabric dyeing and printing. Background Technology

[0002] Textile printing and dyeing is a core pillar industry of my country's light manufacturing sector. With the iteration of new material technologies, functional, high-elastic, microfiber, and composite coated fabrics are gradually replacing traditional fabrics and are widely used in high-end apparel, smart home, industrial protection, and aerospace textiles. These new fabrics have unique structures, diverse coatings, and significant differences in color and light transmission properties, placing higher demands on printing and dyeing processes. During production, factors such as dye ratios, equipment conditions, temperature and humidity, and fabric material can easily lead to defects such as color differences, uneven coloring, missed printing, creases, and uneven coatings, severely affecting the appearance and performance of the fabric. The industry generally uses existing specialized testing equipment to detect printing and dyeing defects.

[0003] While existing equipment for detecting defects in the printing and dyeing of new material fabrics can perform basic inspections of surface defects, it still has many shortcomings in practical applications:

[0004] Traditional infrared inspection cameras are mostly fixed installation structures, with fixed detection depth and scanning field of view. This makes it difficult to perform multi-angle, full-coverage dynamic scanning of moving fabrics, easily creating blind spots. Minor flaws and hidden dyeing defects are difficult to effectively identify, significantly reducing the detection accuracy and comprehensiveness of fabric defects by inspection equipment.

[0005] At the same time, the existing equipment lacks an integrated automatic cleaning structure. Before testing, it is necessary to rely on independent equipment or manual cleaning to remove lint, debris and dust from the fabric surface. The automation level is low and the operation is cumbersome, which greatly affects the ease of use of the testing equipment.

[0006] In addition, conventional cleaning structures can only perform simple brushing operations and lack a matching structure for adsorbing and removing impurities. The debris and impurities after cleaning are very easy to re-adhere to the fabric surface, interfering with the infrared optical detection imaging effect and causing false detection and missed detection problems, which further reduces the detection quality and effectiveness of the detection equipment for fabric defects.

[0007] Therefore, it is necessary to invent a defect detection device and method based on new material fabric dyeing to solve the above problems. Summary of the Invention

[0008] The purpose of this invention is to provide a defect detection device and method based on new material fabric dyeing, so as to solve the problems mentioned in the background art.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a defect detection device based on new material fabric printing and dyeing, comprising a frame and a fabric body, wherein support legs are fixed at the four corners of the lower end of the frame, sliding grooves are provided on both sides of the frame, batteries are provided at both ends of the frame, a drive motor is fixed at one end of the frame, a drive shaft is fixed at the drive end of the drive motor, a drive synchronous pulley is fixed at the other end of the drive shaft, the drive synchronous pulley is connected to a driven synchronous pulley through a synchronous belt, and a driven shaft is fixed in the middle of the driven synchronous pulley;

[0010] The other end of the driven shaft is provided with a connecting structure, on which two infrared cameras are mounted; the connecting structure can move synchronously with the two infrared cameras along the length of the two chutes to perform dynamic visual inspection of the conveyed fabric body.

[0011] Preferably, the connection structure includes a driving gear, which meshes with a driven gear. A stabilizing rod is fixed in the middle of the driven gear, and a driving rod is fixed on one side of the driven gear. Two connecting frames are slidably connected to the outer surface of the driving rod. Each of the two connecting frames has a through groove in its middle. A connecting seat is fixed at one end of each of the two connecting frames, and a sliding frame is fixed at the other end of each of the two connecting seats. An infrared camera is detachably mounted on the inner wall of each of the two sliding frames via bolts.

[0012] Preferably, the driving gear is fixed at the middle of the driven shaft at the end away from the driven synchronous wheel, the driving gear meshes with the driven gear, the diameter of the driving gear is larger than the diameter of the driven gear, the middle of the driven gear is fixed to one end of the stabilizer rod, the outer surface of the stabilizer rod is rotatably connected to the inner wall of one side of the frame, one end of the driving rod is fixed to one side of the driven gear, and the outer surface of the driving rod is slidably connected to the inner wall of two through slots, the two through slots passing through the middle of the two connecting frames.

[0013] Preferably, one end of each of the two connecting frames is fixed to one end of each of the two connecting seats, the vertical cross-section of each of the two connecting frames is L-shaped, and the two connecting frames are staggered. The other end of each of the two connecting seats is fixed to one end of each of the two sliding frames. The outer surfaces of the two sliding frames are slidably connected to the inner walls of the two sliding grooves, and the two sliding grooves pass through both sides of the frame. The vertical cross-section of the frame is cross-shaped. The two infrared cameras are detachably mounted in the middle of the two sliding frames by bolts, and the two infrared cameras are electrically connected to the two batteries by connecting wires.

[0014] Preferably, a guide frame is fixed to the other end of the stabilizer rod, a guide groove is provided in the middle of the guide frame, two guide rods are slidably connected to the inner wall of the guide groove, a slider is fixed to the opposite end of the two guide rods, a cleaning brush is fixed to the adjacent side of the two sliders, a stabilizer seat is slidably connected to the outer surface of the two sliders, and a stabilizer groove is provided in the middle of the two stabilizer seats.

[0015] Preferably, one end of the guide frame is fixed to one end of the driven shaft, the guide groove is inclined and closed in the middle of the guide frame, the outer surfaces of the two guide rods on the near side are slidably connected to the inner walls of the two guide grooves, and the two guide rods on the far side are fixed to one end of the two sliders.

[0016] Preferably, the other side of the two sliders is fixed to the opposite ends of the two cleaning brushes, the bristles of the two cleaning brushes on the near side are in contact with the outer surface of the fabric body, the outer surfaces of the two sliders are slidably connected to the inner walls of the two stabilizing grooves, the two stabilizing grooves pass through the middle of the two stabilizing seats, the two ends of the two stabilizing seats are fixed to the two sides of the frame, the vertical cross-section of the two sliders is T-shaped, and the two sliders are arranged opposite each other.

[0017] Preferably, a fixing plate is fixed in the middle of the stabilizing rod, and several blades are fixed on the outside of the fixing plate. A storage groove is opened on one side of the frame, and through grooves are opened at both ends of the storage groove.

[0018] Preferably, the center of the fixed plate is fixed to the center of the stabilizing rod, a plurality of blades are arranged in a ring and fixed to the side of the fixed plate, a plurality of blades are arranged in the receiving groove, the through groove passes through the center of the receiving groove, and the stabilizing rod passes through the center of the receiving groove.

[0019] A defect detection method for fabric printing and dyeing based on new materials, implemented using the aforementioned defect detection equipment for fabric printing and dyeing based on new materials, includes the following steps:

[0020] S1. Fabric preparation: The dry fabric body to be tested is passed around the driven shaft, then through the two sets of cleaning brushes, and finally around the drive shaft. The fabric body is continuously and uniformly conveyed from the driven shaft to the drive shaft.

[0021] S2. Fabric cleaning and dust removal: During the conveying process, two sets of cleaning brushes reciprocate to clean the upper and lower surfaces of the fabric body. The raised debris, lint, and dust impurities are sucked in by the negative pressure airflow formed by the rotation of the blades and discharged to a position away from the fabric body.

[0022] S3. Dynamic Defect Detection: After cleaning and dust removal, the fabric body enters the detection area. Two sets of infrared cameras move back and forth at a speed higher than that of the fabric conveyor to perform multi-angle and multi-depth dynamic optical scanning imaging on the continuously moving fabric body to complete the detection of printing and dyeing defects.

[0023] S4. Fabric Storage: The fabric body that has completed the inspection is continuously fed out via the drive shaft, and is neatly rolled up or processed in conjunction with the external fabric collection mechanism.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] (1) The present invention achieves the effect of dynamic visual inspection, performs multi-angle, large depth of field and full-coverage dynamic optical scanning on the moving printed fabric body, completely eliminates the detection blind spot of traditional fixed camera, can effectively identify the small defects on the fabric surface and the hidden printing and dyeing defects inside, and significantly improves the accuracy and comprehensiveness of fabric defect detection.

[0026] (2) The present invention achieves the effect of automatic cleaning, effectively removing lint, debris and dust impurities attached to the fabric surface. It does not require the configuration of independent drive equipment, nor does it require manual pre-treatment and cleaning of lint, debris and dust impurities on the fabric surface. The cleaning operation is completed synchronously with the fabric conveyor throughout the process, which simplifies the pre-process of fabric defect detection, saves labor operation costs and equipment investment costs, and greatly improves the overall ease of use of the detection equipment.

[0027] (3) This invention achieves the effect of long-distance removal of impurities, effectively preventing debris and dust impurities from remaining in the detection area or falling back and adhering to the fabric surface. It eliminates the problems of traditional cleaning methods that only sweep without removing dust, and the impurity residue that easily causes infrared optical imaging spots, shadows, and blurring. It avoids the phenomenon of false detection and missed detection of defects caused by impurities blocking the image, effectively ensuring the clarity and accuracy of infrared detection imaging, and significantly improving the detection quality of fabric printing and dyeing defects and the overall use effect of the equipment. Attached Figure Description

[0028] Figure 1 This is an overall structural diagram of the present invention;

[0029] Figure 2 This is an overall rear view of the present invention;

[0030] Figure 3 This is a side sectional view of the frame of the present invention;

[0031] Figure 4 For the present invention Figure 3 Enlarged view of the structure of section A in the middle;

[0032] Figure 5 This is a front sectional view of the frame of the present invention;

[0033] Figure 6 For the present invention Figure 5 Enlarged view of the structure of section B in the middle;

[0034] Figure 7 This is a partial structural diagram of the present invention;

[0035] Figure 8 This is a schematic diagram of the frame structure of the present invention.

[0036] In the diagram: 1. Frame; 2. Fabric body; 3. Support leg; 4. Slide groove; 5. Battery; 6. Drive motor; 7. Drive shaft; 8. Drive synchronous pulley; 9. Driven synchronous pulley; 10. Driven shaft; 11. Drive gear; 12. Driven gear; 13. Stabilizer bar; 14. Drive rod; 15. Connecting frame; 16. Through groove; 17. Connecting seat; 18. Sliding frame; 19. Infrared camera; 20. Guide frame; 21. Guide groove; 22. Guide rod; 23. Slider; 24. Cleaning brush; 25. Stabilizer seat; 26. Stabilizer groove; 27. Fixing plate; 28. Blade; 29. ​​Storage groove; 30. Through groove. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1 - Figure 8As shown, this embodiment provides a defect detection device for dyeing and printing new material fabrics, including a frame 1 and a fabric body 2. Support legs 3 are fixed at the four corners of the lower end of the frame 1. Slide grooves 4 are provided on both sides of the frame 1. Batteries 5 are installed at both ends of the frame 1. A drive motor 6 is fixed at one end of the frame 1. A drive shaft 7 is fixed at the drive end of the drive motor 6. A drive synchronous wheel 8 is fixed at the other end of the drive shaft 7. The drive synchronous wheel 8 is connected to a driven synchronous wheel 9 via a synchronous belt. A driven shaft 10 is fixed in the middle of the driven synchronous wheel 9. A connecting structure is provided at the other end of the driven shaft 10. The connecting structure includes a drive gear 11, which meshes with a driven gear 12. A stabilizing rod 13 is fixed in the middle of the driven gear 12. A driving rod 14 is fixed on one side of the driven gear 12. Two connecting frames 15 are slidably connected to the outer surface of the driving rod 14. A through groove 16 is provided in the middle of each of the two connecting frames 15. Each connecting frame 15 has a connecting seat 17 fixed at one end, and a sliding frame 18 fixed at the other end of each connecting seat 17. An infrared camera 19 is detachably installed on the inner wall of each sliding frame 18 via bolts. The camera is a linear array short-wave infrared camera. The camera is independently powered by the battery 5 built into the frame 1, and can stably and continuously carry out detection operations. The linear array short-wave infrared camera 19 moves back and forth at high speed with the transmission structure, and the reciprocating speed of the camera is always faster than the conveying speed of the fabric body 2. It can perform high-density, full-coverage dynamic visual inspection of the continuously conveyed dry dyed fabric body 2. The camera forms a dense grid scanning trajectory through the difference in speed. Combined with the strong anti-reflection and anti-dust interference capabilities of the linear array short-wave infrared camera 19, it can accurately capture small defects and hidden dyeing defects on the fabric surface, completely eliminate the blind spots of fixed position detection, and further improve the comprehensiveness and accuracy of equipment defect detection.

[0039] Please refer to it again. Figure 1 - Figure 8 As shown, the driving gear 11 is fixed at the middle of the driven shaft 10 at the end away from the driven synchronous pulley 9. The driving gear 11 meshes with the driven gear 12. The diameter of the driving gear 11 is larger than the diameter of the driven gear 12. The middle of the driven gear 12 is fixed to one end of the stabilizer rod 13. The outer surface of the stabilizer rod 13 is rotatably connected to the inner wall of one side of the frame 1. One end of the driving rod 14 is fixed to one side of the driven gear 12. The outer surface of the driving rod 14 is slidably connected to the inner wall of two through slots 16. The two through slots 16 pass through the middle of the two connecting frames 15. One end of the frame 15 is fixed to one end of the two connecting seats 17. The vertical cross-section of the two connecting frames 15 is L-shaped and the two connecting frames 15 are staggered. The other end of the two connecting seats 17 is fixed to one end of the two sliding frames 18. The outer surface of the two sliding frames 18 is slidably connected to the inner wall of the two sliding grooves 4. The two sliding grooves 4 pass through both sides of the frame 1. The vertical cross-section of the frame 1 is cross-shaped. The two infrared cameras 19 are detachably installed in the middle of the two sliding frames 18 by bolts. The two infrared cameras 19 are electrically connected to the two batteries 5 by connecting wires.

[0040] The specific implementation process is as follows: First, the dry fabric body 2 to be tested is passed around the driven shaft 10, then inserted between the two sets of cleaning brushes 24, and finally passed around the drive shaft 7. The drive shaft 7 is driven to rotate by the drive motor 6, causing the drive synchronous wheel 8 fixed at the end of the drive shaft 7 to rotate synchronously. The drive synchronous wheel 8 drives the driven synchronous wheel 9 to rotate through the synchronous belt, thereby causing the driven shaft 10 fixed in the middle of the driven synchronous wheel 9 to rotate synchronously. Relying on the cooperation and transmission between the drive shaft 7 and the driven shaft 10, the fabric body 2 is driven to be conveyed at a uniform speed and stably from the driven shaft 10 to the drive shaft 7.

[0041] Meanwhile, the drive gear 11, fixed to the other end of the driven shaft 10, rotates synchronously with the driven shaft 10. The drive gear 11 drives the driven gear 12, which meshes with it, to rotate. The driven gear 12 maintains stable operation under the limiting cooperation of the stabilizing rod 13 and the inner wall of the frame 1. The diameter of the drive gear 11 is larger than that of the driven gear 12. The meshing of the large and small gears achieves speed-increasing transmission, causing the driven gear 12 to rotate at high speed. The high-speed rotating driven gear 12 drives the driving rod 14, fixed at its end, to rotate circumferentially. The driving rod 14, in conjunction with two sets of through slots 16, synchronously drives the two connecting frames 15 to reciprocate. The two connecting frames 15 are fixedly connected to the sliding frame 18 via connecting seats 17. The sliding frame 18 slides against the inner walls of the sliding grooves 4 on both sides of the frame 1, thereby driving the two sets of infrared cameras 19, which are detachably mounted inside the sliding frame 18, to reciprocate synchronously at high speed. The infrared cameras 19 are powered by the battery 5 built into the frame 1 via connecting cables, ensuring continuous and stable operation. During the continuous and uniform conveying of the fabric body 2, two sets of infrared cameras 19 move back and forth dynamically at a speed higher than that of the fabric body 2, achieving the effect of dynamic visual inspection. They perform multi-angle, large depth-of-field, and full-coverage dynamic optical scanning on the moving printed fabric body 2, completely eliminating the detection blind spots of traditional fixed cameras. This effectively identifies minor defects on the fabric surface and hidden printing defects inside, significantly improving the accuracy and comprehensiveness of fabric defect detection.

[0042] Please refer to it again. Figure 1 - Figure 8As shown, a guide frame 20 is fixed to the other end of the stabilizer bar 13. A guide groove 21 is provided in the middle of the guide frame 20. Two guide rods 22 are slidably connected to the inner wall of the guide groove 21. A slider 23 is fixed to the opposite end of each of the two guide rods 22. A cleaning brush 24 is fixed to the adjacent side of each of the two sliders 23. A stabilizer seat 25 is slidably connected to the outer surface of each of the two sliders 23. A stabilizer groove 26 is provided in the middle of each of the two stabilizer seats 25. One end of the guide frame 20 is fixed to one end of the driven shaft 10. The guide groove 21 is inclined and closed in the middle of the guide frame 20. The two guide rods 22 are slidably connected to the guide frame 20. The near-side outer surface is slidably connected to the inner wall of the two guide grooves 21. The two guide rods 22 are fixed at one end of the two sliders 23, and the other side of the two sliders 23 is fixed to the two cleaning brushes 24. The bristles of the two cleaning brushes 24 are in contact with the outer surface of the fabric body 2. The outer surface of the two sliders 23 is slidably connected to the inner wall of the two stabilizing grooves 26. The two stabilizing grooves 26 pass through the middle of the two stabilizing seats 25. The two ends of the two stabilizing seats 25 are fixed to the two sides of the frame 1. The vertical cross-section of the two sliders 23 is T-shaped, and the two sliders 23 are arranged opposite each other.

[0043] The specific implementation process is as follows: The drive motor 6 drives the drive shaft 7 to rotate synchronously with the drive synchronous wheel 8 fixed at the other end of the drive shaft 7. The drive synchronous wheel 8 drives the driven synchronous wheel 9 to rotate synchronously via a synchronous belt. The rotating driven synchronous wheel 9 drives the driven shaft 10 fixed in its middle to rotate synchronously. During the rotation of the driven shaft 10, it drives the drive gear 11 fixed at its other end to rotate synchronously. The rotating drive gear 11 drives the driven gear 12, which is meshed with it, to rotate. The driven gear 12 cooperates with the inner wall of one side of the frame 1 through the stabilizer rod 13 fixed in the middle to achieve stable rotation. Since the diameter of the drive gear 11 is larger than the diameter of the driven gear 12, the meshing of the large and small gears forms a speed-increasing transmission, causing the driven gear 12 to move at a faster speed, thereby driving the stabilizer rod 13 to rotate at high speed. The high-speed rotating stabilizer rod 13 drives the guide frame 20 fixed at the other end to rotate synchronously at high speed. The high-speed rotating guide frame 20 uses the guide groove 21, which is inclined and closed in its middle, to periodically squeeze and drive the two guide rods 22 that are slidably connected to its inner wall. The two compressed guide rods 22 drive the two sliders 23 fixed at opposite ends to move. Under the limiting guidance of the inner walls of the two stabilizing grooves 26 opened by the two stabilizing seats 25 fixed at both ends on one side of the frame 1, the two sliders 23 slide in a stable reverse direction. The two sliders 23 sliding in the reverse direction drive the two cleaning brushes 24 fixed on the other side to perform reciprocating movements in sync. The two reciprocating cleaning brushes 24 thoroughly brush the upper and lower surfaces of the fabric body 2 during the conveying process but before entering the detection area, achieving an automatic cleaning effect. This effectively removes lint, debris, and floating dust impurities attached to the fabric surface. There is no need to configure independent drive equipment, nor is there a need for manual pre-treatment of lint, debris, and floating dust impurities on the fabric surface. The cleaning operation is completed synchronously with the fabric conveying process, simplifying the pre-process of fabric defect detection, saving labor operation costs and equipment investment costs, and greatly improving the overall ease of use of the detection equipment.

[0044] Please refer to it again. Figure 1 - Figure 8 As shown, a fixing plate 27 is fixed in the middle of the stabilizer bar 13, and several blades 28 are fixed on the outside of the fixing plate 27. A storage groove 29 is opened on one side of the frame 1, and through grooves 30 are opened at both ends of the storage groove 29. The fixing plate 27 is fixed in the middle of the stabilizer bar 13. Several blades 28 are arranged in a ring and fixed on the side of the fixing plate 27. Several blades 28 are set in the storage groove 29. The through grooves 30 pass through the middle of the storage groove 29. The stabilizer bar 13 passes through the middle of the storage groove 29.

[0045] The specific implementation process is as follows: The drive motor 6 drives the drive shaft 7 to rotate, and the drive synchronous wheel 8 fixed at the end of the drive shaft 7 rotates synchronously. The drive synchronous wheel 8 is linked by a synchronous belt to the driven synchronous wheel 9 to rotate synchronously, causing the driven shaft 10 fixed in the middle of the driven synchronous wheel 9 to rotate synchronously. During the rotation of the driven shaft 10, it drives the drive gear 11 fixed at its end to rotate synchronously. The rotating drive gear 11 drives the driven gear 12 that meshes with it to rotate. The driven gear 12 relies on the limiting cooperation between the centrally fixed stabilizing rod 13 and the inner wall of one side of the frame 1 to maintain stable rotation. Utilizing the structural characteristic that the diameter of the drive gear 11 is larger than that of the driven gear 12, speed-increasing transmission is achieved through gear meshing, causing the driven gear 12 to rotate at high speed, which in turn drives the stabilizing rod 13 to rotate at high speed. The high-speed rotating stabilizing rod 13 drives the centrally fixed fixed disk 27 to rotate synchronously at high speed, and the high-speed rotating fixed disk 27 drives several blades 28 evenly fixed on the side to rotate synchronously at high speed. The high-speed rotating blades 28 create a continuous and stable directional airflow, which rapidly transports and blows the fabric lint, debris, and dust impurities stirred up by the cleaning brush 24 through the channel 30 and collection trough 29 to an outer area far from the fabric body 2. This achieves long-distance removal of impurities and effectively prevents debris and dust from remaining in the detection area or falling back onto the fabric surface. This eliminates the problems of traditional cleaning methods that only sweep without removing dust, and where residual impurities can cause infrared optical imaging spots, shadows, and blurriness. It also avoids false or missed detections of defects due to impurities obscuring the image, effectively ensuring the clarity and accuracy of infrared detection imaging, and significantly improving the detection quality of fabric printing defects and the overall effectiveness of the equipment.

[0046] A defect detection method for fabric printing and dyeing based on new materials includes the following steps:

[0047] S1. Fabric preparation: The dry fabric body 2 to be tested is passed around the driven shaft 10, then through the two sets of cleaning brushes 24, and finally around the drive shaft 7. The fabric body 2 is continuously and uniformly conveyed from the driven shaft 10 to the drive shaft 7.

[0048] S2. Fabric cleaning and dust removal: During the conveying process, two sets of cleaning brushes 24 reciprocate to clean the upper and lower surfaces of the fabric body 2. The raised debris, lint and dust impurities are sucked in by the negative pressure airflow formed by the rotation of the blades 28 and discharged to a position away from the fabric body 2.

[0049] S3. Dynamic Defect Detection: After cleaning and dust removal, the fabric body 2 enters the detection area. Two sets of infrared cameras 19 move back and forth at a speed higher than that of the fabric conveyor to perform multi-angle and multi-depth dynamic optical scanning imaging on the continuously moving fabric body 2 to complete the detection of printing and dyeing defects.

[0050] S4. Fabric Storage: The fabric body 2, after completing the inspection, is continuously fed out via the drive shaft 7 and is neatly rolled up or processed in conjunction with the external fabric collection mechanism.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A defect detection device based on new material fabric printing and dyeing, comprising a frame (1) and a fabric body (2), characterized in that: The frame (1) has four legs (3) fixed at the lower corners. The frame (1) has sliding grooves (4) on both sides. The frame (1) has batteries (5) at both ends. The frame (1) has a drive motor (6) fixed at one end. The drive end of the drive motor (6) has a drive shaft (7) fixed. The drive shaft (7) has a drive synchronous pulley (8) fixed at the other end. The drive synchronous pulley (8) is connected to the driven synchronous pulley (9) via a synchronous belt. The driven synchronous pulley (9) has a driven shaft (10) fixed in the middle. The other end of the driven shaft (10) is provided with a connecting structure, on which two infrared cameras (19) are provided; the connecting structure can carry the two infrared cameras (19) to move synchronously in the length direction of the two slides (4) to perform dynamic visual detection on the conveyed fabric body (2).

2. The defect detection equipment based on new material fabric printing and dyeing according to claim 1, characterized in that: The connection structure includes a drive gear (11), which meshes with a driven gear (12). A stabilizing rod (13) is fixed in the middle of the driven gear (12). A driving rod (14) is fixed on one side of the driven gear (12). Two connecting frames (15) are slidably connected to the outer surface of the driving rod (14). A through groove (16) is opened in the middle of each of the two connecting frames (15). A connecting seat (17) is fixed at one end of each of the two connecting frames (15). A sliding frame (18) is fixed at the other end of each of the two connecting seats (17). An infrared camera (19) is detachably installed on the inner wall of the middle of each of the two sliding frames (18) by bolts.

3. The defect detection equipment based on new material fabric printing and dyeing according to claim 2, characterized in that: The driving gear (11) is fixed in the middle at the end of the driven shaft (10) away from the driven synchronous wheel (9). The driving gear (11) meshes with the driven gear (12). The diameter of the driving gear (11) is larger than the diameter of the driven gear (12). The middle of the driven gear (12) is fixed at one end of the stabilizing rod (13). The outer surface of the stabilizing rod (13) is rotatably connected to the inner wall of one side of the frame (1). One end of the driving rod (14) is fixed to one side of the driven gear (12). The outer surface of the driving rod (14) is slidably connected to the inner wall of two through slots (16). The two through slots (16) pass through the middle of the two connecting frames (15).

4. The defect detection equipment based on new material fabric printing and dyeing according to claim 2, characterized in that: One end of each of the two connecting frames (15) is fixed to one end of each of the two connecting seats (17). The vertical cross-sections of the two connecting frames (15) are both L-shaped. The two connecting frames (15) are staggered. The other end of each of the two connecting seats (17) is fixed to one end of each of the two sliding frames (18). The outer surfaces of the two sliding frames (18) are slidably connected to the inner walls of the two sliding grooves (4). The two sliding grooves (4) pass through both sides of the frame (1). The vertical cross-section of the frame (1) is cross-shaped. The two infrared cameras (19) are detachably installed in the middle of the two sliding frames (18) by bolts. The two infrared cameras (19) are electrically connected to the two batteries (5) respectively by connecting wires.

5. The defect detection equipment for fabric printing and dyeing based on new materials according to claim 2, characterized in that: The other end of the stabilizer (13) is fixed with a guide frame (20). The guide frame (20) has a guide groove (21) in the middle. Two guide rods (22) are slidably connected to the inner wall of the guide groove (21). Slider (23) is fixed to the opposite ends of the two guide rods (22). Cleaning brush (24) is fixed to the adjacent sides of the two sliders (23). Stabilizing seats (25) are slidably connected to the outer surfaces of the two sliders (23). Stabilizing grooves (26) are opened in the middle of the two stabilizing seats (25).

6. The defect detection device for fabric printing and dyeing based on new materials according to claim 5, characterized in that: One end of the guide frame (20) is fixed to one end of the driven shaft (10). The guide groove (21) is inclined and closed in the middle of the guide frame (20). The outer surfaces of the two guide rods (22) on the near side are slidably connected to the inner walls of the two guide grooves (21). The two guide rods (22) on the far side are fixed to one end of the two sliders (23).

7. The defect detection device for fabric printing and dyeing based on new materials according to claim 5, characterized in that: The other side of the two sliders (23) is fixed to the opposite ends of the two cleaning brushes (24). The bristles of the two cleaning brushes (24) on the near side are in contact with the outer surface of the fabric body (2). The outer surfaces of the two sliders (23) are slidably connected to the inner walls of the two stabilizing grooves (26). The two stabilizing grooves (26) pass through the middle of the two stabilizing seats (25). The two ends of the two stabilizing seats (25) are fixed to the two sides of the frame (1). The vertical cut surfaces of the two sliders (23) are T-shaped. The two sliders (23) are arranged opposite to each other.

8. The defect detection equipment for fabric printing and dyeing based on new materials according to claim 2, characterized in that: The stabilizer bar (13) has a fixed plate (27) fixed in the middle, and several blades (28) are fixed on the outside of the fixed plate (27). A storage groove (29) is provided on one side of the frame (1), and through grooves (30) are provided at both ends of the storage groove (29).

9. A defect detection device for fabric printing and dyeing based on new materials as described in claim 8, characterized in that: The fixed plate (27) is fixed in the middle of the stabilizer (13), and several blades (28) are fixed in a ring on the side of the fixed plate (27). Several blades (28) are set in the storage groove (29). The through groove (30) passes through the middle of the storage groove (29), and the stabilizer (13) passes through the middle of the storage groove (29).

10. A method for detecting defects in the printing and dyeing of new material fabrics, employing the defect detection equipment for printing and dyeing of new material fabrics as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Fabric preparation: The dry fabric body (2) to be tested is passed around the driven shaft (10), then through the two sets of cleaning brushes (24), and finally around the drive shaft (7). The fabric body (2) is continuously and uniformly conveyed from the driven shaft (10) to the drive shaft (7). S2. Fabric cleaning and dust removal: During the conveying process, two sets of cleaning brushes (24) reciprocate to clean the upper and lower surfaces of the fabric body (2). The raised debris, lint and dust impurities are sucked in by the negative pressure airflow formed by the rotation of the blades (28) and discharged to a position far away from the fabric body (2). S3. Dynamic Defect Detection: After cleaning and dust removal, the fabric body (2) enters the detection area. Two sets of infrared cameras (19) move back and forth at a speed higher than that of the fabric conveyor to perform multi-angle and multi-depth dynamic optical scanning imaging on the continuously moving fabric body (2) to complete the detection of printing and dyeing defects. S4. Fabric storage: The fabric body (2) that has completed the test is continuously fed out through the drive shaft (7) and is neatly rolled up or processed in the cooperation of the outer fabric collection mechanism.

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