Clothing fabric flaw visual detection positioning device

Abstract

This invention discloses a visual detection and positioning device for garment fabric defects, relating to the field of visual inspection technology. The bottom of the rectangular groove plate is fixedly connected to the inner wall of the frame, and the top of the rectangular groove plate, near the pressing mechanism, is inclined upwards. This device, by tilting the rectangular groove plate upwards near the pressing mechanism and aligning the top of the pad with the top of the rectangular groove plate, restricts the incoming fabric, maintaining a certain distance between the bottom of the fabric and the bottom of the pad. This ensures that when there are no defects, the bottom of the fabric does not contact the pad for exiting the device. It also prevents pigment from adhering to the top of the pad when pigment is applied to the defective area, causing pigment contamination when the flawless fabric passes through. Furthermore, due to the elastic material characteristics of the pad ring, when the friction between the fabric and the pad is high, the pad ring is compressed and deformed, allowing the pad to move with the fabric and preventing fabric wear.

Description

Technical Field

[0001] This invention relates to the field of visual inspection technology, specifically to a visual inspection and positioning device for defects in clothing fabrics. Background Technology

[0002] Fabric defects are a key issue affecting garment quality, finished product pass rate, and brand reputation. Their occurrence spans the entire production chain from fiber raw materials to dyeing and finishing. The visual inspection and positioning device for fabric defects is a device that uses machine vision technology to automatically detect and locate defects on the surface of fabrics. It can improve the efficiency and accuracy of fabric quality inspection, reduce errors and labor intensity of manual inspection. The visual inspection and positioning device for fabric defects is a quality inspection device used to collect and locate surface defects during fabric production and processing.

[0003] In existing equipment, when marking defect locations with color, the pigment can easily seep through the fabric and adhere to the surface of the bottom plate. As the fabric moves, it usually adheres to the surface of the plate, causing the pigment to contaminate areas without defects. At the same time, the friction between the fabric and the plate during color marking can easily cause the fabric to wear out. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a visual detection and positioning device for defects in clothing fabrics, comprising:

[0005] The frame has a visual detector fixedly installed on its top, the bottom end of which penetrates the frame and extends into its interior, and lenses are evenly arranged at the bottom of the visual detector. A controller is installed on the outside of the frame.

[0006] The pressing mechanism and the calibration mechanism are both installed inside the frame.

[0007] The calibration mechanism includes a rectangular groove plate. The bottom of the rectangular groove plate is fixedly connected to the inner wall of the frame. The top of the rectangular groove plate, near the pressure mechanism, is inclined upwards. This upward inclination, combined with the top of a pad flush with the top of the rectangular groove plate, restricts the incoming fabric, ensuring a certain distance between the bottom of the fabric and the bottom of the pad. This prevents the bottom of the fabric from contacting the pad when there are no defects, thus avoiding pigment adhesion to the top of the pad when applying pigment to defective areas. This prevents pigment from contaminating the fabric when the bottom of flawless fabric contacts the pad. Furthermore, a rectangular groove is formed at the center of the top of the rectangular groove plate, and a slide rail is fixedly installed at the groove. A pad is slidably installed on the top of the slide rail. Bottom sliding strips are fixedly installed on both sides of the bottom of the pad. The opposite surfaces of the bottom sliding strips slide and adapt to the non-opposite surfaces of the slide rails. Bottom stop strips are fixedly installed on the bottom of the pad and the adjacent sides of the bottom sliding strips. Washers are fixedly installed between the non-opposite surfaces of the bottom stop strips and the inner wall of the rectangular groove plate. The washers are made of elastic material. Due to the elasticity of the washers, when the marking device presses down on the fabric, causing the fabric to contact the pad, and when the fabric moves to position the defect for coloring, the friction between the fabric and the pad is transmitted to the washers through the bottom stop strips. When the friction is large, the washers are compressed and deformed, allowing the pad to move with the fabric. This avoids relative movement between the fabric and the pad during coloring and positioning, which could cause fabric wear. The top of the pad is flush with the top of the rectangular groove plate.

[0008] Preferably, side plates are fixedly installed on both sides of the rectangular groove plate, a sliding groove plate is slidably installed between the side plates, a cylinder is fixedly installed on the top of the side plates, the output end of the cylinder is fixedly connected to the top of the sliding groove plate, a groove is opened at the center of the top of the sliding groove plate, a motor is fixedly installed on the top of the sliding groove plate, a lead screw is fixedly installed on the output end of the motor, a slider is threaded to the outside of the lead screw, the outside of the slider is slidably adapted to the groove of the sliding groove plate, and a marking device is fixedly installed at the bottom of the slider.

[0009] Preferably, the pressing mechanism includes a rectangular groove frame, with shaft groove frames fixedly installed on both sides of the top of the rectangular groove frame. A pressing frame is slidably installed between the shaft groove frames. A pressing shaft is rotatably installed on the inner wall of the pressing frame. The two ends of the pressing shaft are slidably adapted to the inner wall of the shaft groove frame. The pressing shaft is symmetrically installed along the center position of the axis of the pressing frame. A top shaft groove is opened on the top of the rectangular groove frame, and the top shaft groove corresponds one-to-one with the pressing shaft. Through the cooperation of the pressing shaft and the rotating roller, when the fabric moves, the pressing shaft presses on the fabric, and the top of the rotating roller is flush with the top of the rectangular groove frame, so that the bottom of the fabric moves in contact with the top of the rectangular groove frame, avoiding fluctuations and undulations in the fabric during movement, which could cause wrinkles and jamming. A rotating roller is rotatably installed at the top shaft groove of the rectangular groove frame. The roller has its top flush with the top of the rectangular groove frame and its top in contact with the bottom of the pressure shaft. A guide shaft is rotatably mounted on the inner wall of the rectangular groove frame, with its top lower than the top of the rectangular groove frame. The guide shaft is evenly installed on the inner wall of the rectangular groove frame. A scraper is fixedly installed on the inner wall of the rectangular groove frame, and the scraper is evenly installed on the inner wall of the rectangular groove frame. When the fabric moves, the scraper scrapes the bottom of the fabric, removing any debris accidentally attached to the bottom of the fabric to avoid affecting visual inspection. At the same time, the scraper applies force to the fabric, smoothing out any wrinkles that appear on the fabric, ensuring the flatness of the fabric and preventing wrinkles from affecting visual inspection. The scraper is located between the guide shafts, and its top is higher than the top of the guide shaft.

[0010] Preferably, a connecting frame is fixedly installed at the bottom of the rectangular groove frame, a lamp tube is fixedly installed on the inner wall of the connecting frame, a light-transmitting plate is fixedly installed on the inner wall of the rectangular groove frame, the light-transmitting plate is located between the vision detector and the lamp tube, and a limiting rod is fixedly installed on the inner wall of the rectangular groove frame. The limiting rod is symmetrically installed along the center position of the axis of the light-transmitting plate. By cooperating with the light-transmitting plate, the limiting rod restricts the fabric passing through the top of the light-transmitting plate, so that the fabric passes through the bottom of the limiting rod and parallel to the top of the light-transmitting plate, allowing the bottom lamp to pass through. The supplemental lighting for the fabric passes through the light-transmitting plate to illuminate the fabric, and is detected by a vision sensor directly above it. This prevents the fabric from tilting when passing through the supplemental lighting area, which would cause uneven lighting effects at different locations on the fabric and affect the detection. The limiting rod is located diagonally above both sides of the light-transmitting plate. The top of the rectangular groove frame is inclined on one side near the rectangular groove plate, and side hole blocks are fixedly installed on both sides of the top of the rectangular groove frame near the rectangular groove plate. A pressure roller is rotatably installed between the side hole blocks, and the pressure roller is located directly above the inclined position of the top of the rectangular groove plate.

[0011] This invention provides a visual detection and location device for defects in clothing fabrics. It has the following beneficial effects:

[0012] (i) The garment fabric defect visual detection and positioning device uses the upward tilt of the rectangular groove plate near the pressing mechanism, and the top of the pad plate is flush with the top of the rectangular groove plate to restrict the introduced fabric, so that there is a certain distance between the bottom of the fabric and the bottom of the pad plate. This ensures that when there are no defects, the bottom of the fabric does not contact the pad plate for export. This avoids the situation where, when the defective area is coated with pigment for positioning, the pigment adheres to the top of the pad plate through the fabric, causing the bottom of the defective fabric to contact the pad plate and contaminate the fabric when it passes through.

[0013] (ii) The fabric defect visual inspection and positioning device utilizes the elastic material characteristics of the pad ring. When the labeler presses down on the fabric, the fabric contacts the pad plate. During the movement of the fabric, when the defect location is marked and positioned, the friction between the fabric and the pad plate is transmitted to the pad ring through the bottom stop strip. When the friction is large, the pad ring is compressed and deformed, allowing the pad plate to move with the fabric. This avoids relative movement between the fabric and the pad plate during the marking and positioning process, which could lead to fabric wear.

[0014] (III) The fabric defect visual detection and positioning device uses a pressure shaft and a rotating roller to press the fabric during movement. The pressure shaft presses on the fabric, and the top of the rotating roller is flush with the top of the rectangular groove frame, so that the bottom of the fabric moves in contact with the top of the rectangular groove frame. This prevents the fabric from fluctuating during movement, which could cause wrinkles or jamming.

[0015] (iv) The fabric defect visual inspection and positioning device uses a scraper to scrape the bottom of the fabric when the fabric is in motion. This scrapes away any debris that may accidentally adhere to the bottom of the fabric, thus avoiding affecting the visual inspection. At the same time, the scraper applies force to the fabric, so that any wrinkles in the fabric are smoothed out by the scraping action, ensuring the flatness of the fabric and preventing wrinkles from affecting the visual inspection.

[0016] (v) The visual inspection and positioning device for garment fabric defects uses a limiting rod in conjunction with a light-transmitting plate. The limiting rod restricts the fabric passing over the top of the light-transmitting plate, allowing the fabric to pass through the bottom of the limiting rod and parallel to the top of the light-transmitting plate. This allows the supplementary lighting from the bottom lamp tube to pass through the light-transmitting plate, providing supplementary lighting to the fabric. The device also captures images from directly above to prevent the fabric from tilting when passing through the supplementary lighting area, which would result in uneven supplementary lighting at different locations on the fabric and affect the inspection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the calibration mechanism of the present invention;

[0020] Figure 4 This is a cross-sectional view of the calibration mechanism of the present invention;

[0021] Figure 5 This is a partial structural schematic diagram of the calibration mechanism of the present invention;

[0022] Figure 6 This is a schematic diagram of the pressing mechanism of the present invention;

[0023] Figure 7 This is a partial structural schematic diagram of the pressing mechanism of the present invention;

[0024] Figure 8 This is a top view of a portion of the pressing mechanism of the present invention;

[0025] Figure 9 This is a partial sectional view of the pressing mechanism of the present invention.

[0026] In the diagram: 1. Frame; 2. Calibration mechanism; 3. Pressing mechanism; 4. Vision detector; 5. Controller; 201. Rectangular groove plate; 202. Side upright plate; 203. Motor; 204. Lead screw; 205. Slide plate; 206. Cylinder; 207. Slider; 208. Marker; 209. Pad plate; 210. Slide rail; 211. Bottom slide bar; 212. Bottom stop bar; 213. Washer ring; 301. Rectangular groove frame; 302. Pressing frame; 303. Light-transmitting plate; 304. Scraper; 305. Pressing shaft; 306. Guide shaft; 307. Shaft groove frame; 308. Top shaft groove; 309. Rotary roller; 310. Side hole block; 311. Pressing roller; 312. Limiting rod; 313. Lamp tube; 314. Connecting frame. Detailed Implementation

[0027] 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.

[0028] For the first embodiment, please refer to... Figures 1 to 5 The present invention provides a technical solution:

[0029] A visual detection and positioning device for defects in clothing fabrics includes:

[0030] The frame 1 has a visual detector 4 fixedly installed on its top. The bottom end of the visual detector 4 passes through the frame 1 and extends into its interior. Lenses are evenly arranged at the bottom of the visual detector 4. A controller 5 is installed on the outside of the frame 1.

[0031] The pressing mechanism 3 and the calibration mechanism 2 are both installed inside the frame 1;

[0032] The calibration mechanism 2 includes a rectangular groove plate 201. The bottom of the rectangular groove plate 201 is fixedly connected to the inner wall of the frame 1. The top of the rectangular groove plate 201 is inclined upward near the pressure mechanism 3, and a rectangular groove is formed at the center of the top of the rectangular groove plate 201. The pressure roller 311 cooperates with the raised position of the top of the rectangular groove plate 201 to restrict the fabric being discharged, thus limiting the height of the fabric at the top of the rectangular groove plate 201 and creating a certain distance between the fabric and the top of the rectangular groove plate 201. A slide rail 210 is fixedly installed at the rectangular groove of the rectangular groove plate 201, and a pad 209 is slidably installed on the top of the slide rail 210. Bottom sliding strips 2 are fixedly installed on both sides of the bottom of the pad 209. 11. The opposing surfaces of the bottom slide strip 211 and the non-opposing surfaces of the slide rail 210 are slidably adapted. Bottom stops 212 are fixedly installed on the bottom of the pad 209 and the adjacent sides of the bottom slide strip 211. During the labeling process, the pressure of the label applicator 208 on the fabric causes the fabric to contact the pad 209. When the friction between the fabric and the pad 209 is large, the friction drives the pad 209, causing the bottom stops 212 to compress the pad ring 213 and deform, so that the pad 209 can move with the fabric. The non-opposing surfaces of the bottom stops 212 and the inner wall of the rectangular groove plate 201 are fixedly installed with pad rings 213. The pad rings 213 are made of elastic material. The top of the pad 209 is flush with the top of the rectangular groove plate 201.

[0033] Side plates 202 are fixedly installed on both sides of the rectangular groove plate 201. A sliding groove plate 205 is slidably installed between the side plates 202. A cylinder 206 is fixedly installed on the top of the side plates 202. The output end of the cylinder 206 is fixedly connected to the top of the sliding groove plate 205. A groove is opened at the center of the top of the sliding groove plate 205. A motor 203 is fixedly installed on the top of the sliding groove plate 205. A lead screw 204 is fixedly installed on the output end of the motor 203. When it enters below the marking device 208, the cylinder 206 cooperates with the motor 203 to utilize the motor... 203 drives the lead screw 204 to rotate. The threaded connection between the lead screw 204 and the slider 207 causes the slider 207 to move the marking device 208. The cylinder 206 moves the slide plate 205 downward, so that the bottom marking position of the marking device 208 contacts the fabric. During the movement of the fabric, pigment is applied to the defective position of the fabric for marking and positioning. The outer side of the lead screw 204 is threadedly connected to the slider 207. The outer side of the slider 207 slides and adapts to the slide groove of the slide plate 205. The bottom of the slider 207 is fixedly installed with the marking device 208.

[0034] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 6 to 7As shown, the pressing mechanism 3 includes a rectangular groove frame 301. Shaft groove frames 307 are fixedly installed on both sides of the top of the rectangular groove frame 301. A pressing frame 302 is slidably installed between the shaft groove frames 307. Driven by the unwinding and rewinding equipment, the fabric passes through the roller 309 at the end away from the calibration mechanism 2 and the pressing shaft 305. After passing through the scraper 304 and the guide shaft 306, it passes through the roller 309 on the other side and the pressing shaft 305. The pressing shaft 305 presses the fabric, and the top of the roller 309 is flush with the top of the rectangular groove frame 301, causing the bottom of the fabric to move against the top of the rectangular groove frame 301. The pressing shaft 305 is rotatably installed on the inner wall of the pressing frame 302. The two ends of the pressing shaft 305 are slidably adapted to the inner wall of the shaft groove frame 307.

[0035] The pressure shaft 305 is symmetrically installed along the center of the axis of the pressure frame 302. A top shaft groove 308 is provided on the top of the rectangular groove frame 301, corresponding one-to-one with the pressure shaft 305. A rotating roller 309 is rotatably installed at the top shaft groove 308 of the rectangular groove frame 301. The top of the rotating roller 309 is flush with the top of the rectangular groove frame 301, and the top of the rotating roller 309 contacts the bottom of the pressure shaft 305. A guide shaft 306 is rotatably installed on the inner wall of the rectangular groove frame 301. The top of the guide shaft 306 is lower than the top of the rectangular groove frame 301, and the guide shaft 306 is evenly installed on the inner wall of the rectangular groove frame 301. The inner wall of the rectangular groove frame 301 is fixedly equipped with a scraper 304. During the movement, the scraper 304 scrapes the bottom of the fabric, so that the wrinkles of the fabric are smoothed out by the scraper 304. At the same time, the scraper 304 cleans the debris attached to the bottom of the fabric, so that the debris falls smoothly along the gap between the guide shaft 306 and the scraper 304 after being scraped. The scraper 304 is evenly installed on the inner wall of the rectangular groove frame 301, and the scraper 304 is located between the guide shafts 306. The top of the scraper 304 is higher than the top of the guide shaft 306.

[0036] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 8 to 9As shown, a connecting frame 314 is fixedly installed at the bottom of the rectangular groove frame 301. A lamp tube 313 is fixedly installed on the inner wall of the connecting frame 314. A light-transmitting plate 303 is fixedly installed on the inner wall of the rectangular groove frame 301. The light-transmitting plate 303 is located between the vision detector 4 and the lamp tube 313. A limiting rod 312 is fixedly installed on the inner wall of the rectangular groove frame 301. The limiting rod 312 is symmetrically installed along the center of the axis of the light-transmitting plate 303, and the limiting rod 312 is located diagonally above both sides of the light-transmitting plate 303. When the fabric passes between the roller 309 and the pressure shaft 305 near the calibration mechanism 2, the fabric enters the top of the light-transmitting plate 303. When the light plate 303 is at the top, the material limiting rod 312 on the side away from the calibration mechanism 2 passes through the bottom and enters the top of the light-transmitting plate 303. Then, the material limiting rod 312 on the side close to the calibration mechanism 2 passes through the bottom and enters the gap between the bottom of the pressure roller 311 and the inclined surface of the rectangular groove frame 301, and enters the calibration mechanism 2. The side of the top of the rectangular groove frame 301 close to the rectangular groove plate 201 is inclined, and side hole blocks 310 are fixedly installed on both sides of the top of the rectangular groove frame 301 close to the rectangular groove plate 201. The pressure roller 311 is rotatably installed between the side hole blocks 310. The pressure roller 311 is located directly above the inclined position of the top of the rectangular groove plate 201.

[0037] In use, the unwinding and rewinding equipment work together to drive the garment fabric to be inspected through the equipment, so that the fabric enters from the end of the pressing mechanism 3 away from the calibration mechanism 2. After the fabric enters the pressing mechanism 3, it is restricted and passes directly under the visual detector 4 for visual inspection. After the inspection is completed, it enters the calibration mechanism 2, where the location of the defect detected on the fabric is marked.

[0038] In the pressing mechanism 3, the fabric, driven by the unwinding and rewinding equipment, passes between the rotating roller 309 and the pressing shaft 305 at the end away from the calibration mechanism 2. After passing through the scraper plate 304 and the guide shaft 306, it passes between the rotating roller 309 and the pressing shaft 305 on the other side. The top of the rotating roller 309 is flush with the top of the rectangular groove frame 301, and the pressing shaft 305 presses the fabric, causing the bottom of the fabric to move against the top of the rectangular groove frame 301. During the movement, the scraper plate 304 scrapes the bottom of the fabric, so that the wrinkles in the fabric are smoothed out by the scraper plate 304. At the same time, the scraper plate 304 cleans the debris attached to the bottom of the fabric, so that the debris falls smoothly along the gap between the guide shaft 306 and the scraper plate 304 after being scraped off.

[0039] After the fabric passes between the roller 309 and the pressure shaft 305 on the side near the calibration mechanism 2, the fabric enters the top of the light-transmitting plate 303. When entering the top of the light-transmitting plate 303, it passes through the bottom of the limiting rod 312 on the side away from the calibration mechanism 2 and enters the top of the light-transmitting plate 303. Then, it passes through the bottom of the limiting rod 312 on the side near the calibration mechanism 2 and enters the gap between the bottom of the pressure roller 311 and the inclined surface of the rectangular groove frame 301, and enters the calibration mechanism 2.

[0040] In calibration mechanism 2, the pressure roller 311 engages with the raised top position of the rectangular groove plate 201 to restrict the fabric being discharged, limiting the height of the fabric at the top of the rectangular groove plate 201 and maintaining a certain distance between the fabric and the top of the rectangular groove plate 201. When the fabric enters below the labeling device 208, the cylinder 206 engages with the motor 203, which drives the lead screw 204 to rotate. The threaded connection between the lead screw 204 and the slider 207 causes the slider 207 to move the labeling device. The marking device 208 moves and drives the slide plate 205 downward through the cylinder 206, so that the bottom marking position of the marking device 208 contacts the fabric. During the movement of the fabric, the marking device 208 applies pigment to the defective position of the fabric to mark the location. At the same time, during the marking process, the pressure of the marking device 208 on the fabric causes the fabric to contact the pad 209. When the friction between the fabric and the pad 209 is large, the friction is used to drive the pad 209, causing the bottom stop strip 212 to compress the pad ring 213 and deform, so that the pad 209 can move with the fabric.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] 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 visual detection and positioning device for defects in clothing fabrics, characterized in that, include: A frame (1) is fixedly installed on the top of the frame (1). The bottom end of the visual detector (4) penetrates through the frame (1) and extends into its interior. Lenses are evenly arranged at the bottom of the visual detector (4). A controller (5) is installed on the outside of the frame (1). The pressing mechanism (3) and the calibration mechanism (2) are both installed inside the frame (1); The calibration mechanism (2) includes a rectangular groove plate (201). The bottom of the rectangular groove plate (201) is fixedly connected to the inner wall of the frame (1). The top of the rectangular groove plate (201) is inclined upward near the end of the pressing mechanism (3). A rectangular groove is provided at the center of the top of the rectangular groove plate (201). A slide rail (210) is fixedly installed at the rectangular groove of the rectangular groove plate (201). A pad (209) is slidably installed on the top of the slide rail (210). The bottom sides of the pad (209) are... Each of the following is fixedly installed with a bottom slide bar (211). The opposite surface of the bottom slide bar (211) is slidably adapted to the non-opposite surface of the slide rail (210). Bottom stops (212) are fixedly installed on the bottom of the pad (209) and the adjacent side of the bottom slide bar (211). Washers (213) are fixedly installed between the non-opposite surface of the bottom stops (212) and the inner wall of the rectangular groove plate (201). The washers (213) are made of elastic material. The top of the pad (209) is flush with the top of the rectangular groove plate (201).

2. The visual detection and positioning device for defects in clothing fabrics according to claim 1, characterized in that: Side plates (202) are fixedly installed on both sides of the rectangular groove plate (201). A sliding groove plate (205) is slidably installed between the side plates (202). A cylinder (206) is fixedly installed on the top of the side plates (202). The output end of the cylinder (206) is fixedly connected to the top of the sliding groove plate (205). A sliding groove is opened at the center of the top of the sliding groove plate (205).

3. The visual detection and positioning device for defects in clothing fabrics according to claim 2, characterized in that: A motor (203) is fixedly installed on the top of the slide plate (205), and a lead screw (204) is fixedly installed on the output end of the motor (203). A slider (207) is threadedly connected to the outside of the lead screw (204). The outside of the slider (207) is slidably adapted to the slide groove of the slide plate (205), and a labeling device (208) is fixedly installed on the bottom of the slider (207).

4. The visual detection and positioning device for defects in clothing fabrics according to claim 1, characterized in that: The pressing mechanism (3) includes a rectangular groove frame (301), and shaft groove frames (307) are fixedly installed on both sides of the top of the rectangular groove frame (301). A pressing frame (302) is slidably installed between the shaft groove frames (307). A pressing shaft (305) is rotatably installed on the inner wall of the pressing frame (302). The two ends of the pressing shaft (305) are slidably adapted to the inner wall of the shaft groove frame (307).

5. The visual detection and positioning device for defects in clothing fabrics according to claim 4, characterized in that: The pressing shaft (305) is symmetrically installed at the center of the axis of the pressing frame (302), and the top of the rectangular groove frame (301) is provided with a top shaft groove (308), which corresponds one-to-one with the pressing shaft (305).

6. The visual detection and positioning device for defects in clothing fabrics according to claim 5, characterized in that: A rotating roller (309) is rotatably mounted at the top shaft groove (308) of the rectangular groove frame (301). The top of the rotating roller (309) is flush with the top of the rectangular groove frame (301), and the top of the rotating roller (309) is in contact with the bottom of the pressing shaft (305).

7. The visual detection and positioning device for defects in clothing fabrics according to claim 6, characterized in that: A guide shaft (306) is rotatably mounted on the inner wall of the rectangular groove frame (301). The top of the guide shaft (306) is lower than the top of the rectangular groove frame (301), and the guide shaft (306) is evenly installed on the inner wall of the rectangular groove frame (301). A scraper (304) is fixedly installed on the inner wall of the rectangular groove frame (301). The scraper (304) is evenly installed on the inner wall of the rectangular groove frame (301), and the scraper (304) is located between the guide shafts (306). The top of the scraper (304) is higher than the top of the guide shaft (306).

8. The visual detection and positioning device for defects in clothing fabrics according to claim 7, characterized in that: A connecting frame (314) is fixedly installed at the bottom of the rectangular slot frame (301), a lamp tube (313) is fixedly installed on the inner wall of the connecting frame (314), and a light-transmitting plate (303) is fixedly installed on the inner wall of the rectangular slot frame (301). The light-transmitting plate (303) is located between the visual detector (4) and the lamp tube (313).

9. The visual detection and positioning device for defects in clothing fabrics according to claim 8, characterized in that: A limiting rod (312) is fixedly installed on the inner wall of the rectangular groove frame (301). The limiting rod (312) is symmetrically installed along the center position of the axis of the light-transmitting plate (303), and the limiting rod (312) is located diagonally above both sides of the light-transmitting plate (303).

10. The visual detection and positioning device for defects in clothing fabrics according to claim 9, characterized in that: The top of the rectangular groove frame (301) is inclined on one side near the rectangular groove plate (201), and side hole blocks (310) are fixedly installed on both sides of the top of the rectangular groove frame (301) near the rectangular groove plate (201). A pressure roller (311) is rotatably installed between the side hole blocks (310), and the pressure roller (311) is located directly above the inclined position of the top of the rectangular groove plate (201).

Images