Intelligent visual detection device and method for removing bad cotton yarn

Abstract

The application relates to the technical field of bad human cotton yarn, in particular to an intelligent visual detection equipment and method for removing bad human cotton yarn, which comprises a detection frame, a scanning mechanism is arranged at the top front side of the detection frame, and the detection frame comprises a bottom frame. The detection frame and the scanning mechanism are arranged, the tension in the human cotton yarn detection process is automatically and dynamically adjusted, the tension unevenness problem caused by the wear of conveying rollers and the change of environmental temperature and humidity can be offset, stable tensioning force is continuously applied to the human cotton yarn passing through the detection area, the situation that the human cotton yarn is sagged and deviated from the shooting scanning range due to the over-loose tension is avoided, the interference of the tension unevenness on the visual recognition accuracy is eliminated, the probability of missed detection and misjudgment is greatly reduced, and the product quality of the human cotton yarn leaving the factory is effectively guaranteed; meanwhile, the dynamically stable tension also eliminates the data deviation of subsequent strength detection, and the real mechanical performance of the human cotton yarn can be accurately reflected.

Description

Technical Field

[0001] This invention relates to the field of defective rayon yarn technology, and more specifically, to an intelligent visual inspection device and method for removing defective rayon yarn. Background Technology

[0002] Rayon yarn, also known as viscose yarn, refers to yarn spun purely from rayon-type viscose fiber. As one of the most widely used basic textile raw materials in the cotton textile industry, its quality directly affects the quality of subsequent fabrics. In the entire production process of rayon yarn, strict appearance quality inspection of the final yarn spool is an indispensable key step. This process aims to accurately identify and screen out defective products with various flaws, attached impurities, or that do not meet standards through systematic visual inspection, thereby effectively ensuring the quality of each batch of rayon yarn leaving the factory and meeting the downstream customers' requirements for the consistency and reliability of raw materials.

[0003] According to patent document CN120992637A, a detection device for impurities in new material cotton yarn is disclosed. This device includes a test platform for detecting impurities in the cotton yarn; a camera mounted on top of the test platform for detecting the cotton yarn; a support frame fixedly connected to the top of the test platform, with a mounting bracket fixedly connected to the top of the support frame for mounting the camera; and an adjustment component mounted on the mounting bracket for adjusting the position of the camera. This invention uses two cameras to detect the cotton yarn. The adjustment component and drive structure allow for switching between the cameras, ensuring that when one camera needs to be replaced, the other camera can continue detecting, thus preventing detection interruption. This allows the two cameras to adapt to different detection ranges, ensuring continuous detection, reducing downtime, and improving detection efficiency.

[0004] Typically, rayon yarn is inspected using an infrared scanner. However, existing equipment often cannot automatically adjust the yarn tension during inspection. While maintaining constant tension is crucial for rayon yarn inspection, uneven tension can occur due to wear on the conveyor rollers or changes in ambient temperature and humidity. Excessive tension can cause the yarn spool to sag and deviate from the imaging range, interfering with the accuracy of visual inspection and potentially leading to missed detections or misjudgments, thus affecting the quality of the final product. Furthermore, the rayon yarn requires subsequent strength testing, and uneven tension can also cause deviations in the strength test data, failing to accurately reflect the true performance of the rayon yarn and further increasing the risk of defective products being released. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, this invention provides an intelligent visual inspection device and method for rejecting defective rayon yarn. The technical problem to be solved by this invention is that uneven tension may occur due to wear of the conveyor rollers and changes in ambient temperature and humidity. Excessive tension can cause the yarn roll to sag and deviate from the shooting range, interfering with the recognition accuracy of visual inspection and even causing missed detections or misjudgments, affecting the quality of the final product. Furthermore, the rayon yarn needs to undergo strength testing afterward, and uneven tension can also cause deviations in the strength test data, failing to accurately reflect the true performance of the rayon yarn and further increasing the risk of defective products being released.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An intelligent visual inspection device for removing defective rayon yarn includes an inspection frame, wherein a scanning mechanism is provided on the top front side of the inspection frame; The testing frame includes a base frame, and an adjustment component is fixedly connected to the front side of the base frame; The base frame includes an L-shaped upright plate. A controller is fixedly connected to the top rear side of the L-shaped upright plate. Lines are fixedly connected to the top left and right sides of the controller. Triangular side plates are fixedly connected to the top left and right sides of the front side of the L-shaped upright plate. An inverted concave plate is fixedly connected to the front bottom of the two triangular side plates. A motor connecting block is fixedly connected to the right side of the inverted concave plate. A motor is fixedly connected to the bottom of the motor connecting block. A gear is fixedly connected to the output end of the motor. A receiving roller is rotatably connected to the bottom inner side of the inverted concave plate. The adjustment assembly includes two side connecting base plates, with side upright plates fixedly connected to the front sides of the inner sides of the two side connecting base plates, rectangular frames fixedly connected to the inner sides of the two side upright plates, and vertical connecting plates fixedly connected to the top of the front and rear sides of the two side upright plates, with front guide rail rods fixedly connected to the inner sides of the two front vertical connecting plates. The scanning mechanism includes a scanning plate connecting frame, and a tension control component is provided on the inner side of the scanning plate connecting frame.

[0007] As a further embodiment of the present invention: a columnar transmission rod is fixedly connected to the right end of the receiving roller, and a second gear is fixedly connected to the right end of the columnar transmission rod. The outer wall of the second gear meshes with the outer wall of the gear. Side plates are fixedly connected to the front sides of the two triangular side plates. A feeding roller is rotatably connected to the inner wall of the bottom of the front side of the L-shaped upright plate. A base plate is fixedly connected to the bottom of the L-shaped upright plate, and slide rail rods are fixedly connected to the left and right sides of the bottom of the base plate.

[0008] As a further embodiment of the present invention: a support plate is fixedly connected to the bottom of the rear side of the two side uprights, and a rear L-shaped side plate is fixedly connected to the left and right sides of the rear side of the two support plates. The rear sides of the two rear L-shaped side plates are fixedly connected to the left and right sides of the middle of the front side of the L-shaped upright. Guide side plates connecting the upright are fixedly connected to the front and rear sides of the left and right sides of the top of the support plate. Guide side plates are fixedly connected to the inner sides of the left and right sets of guide side plates connecting the upright. Guide blocks are fixedly connected to the rear sides of the two guide side plates.

[0009] As a further embodiment of the present invention: A horizontal L-shaped side plate is fixedly connected to both sides of the inner side of the two rear L-shaped side plates on the rear side of the pallet. A columnar transverse transmission rod is rotatably connected to the top inner wall of the two horizontal L-shaped side plates. Both ends of the two columnar transverse transmission rods extend to the outer sides of the two horizontal L-shaped side plates. A rotating side plate is fixedly connected to both ends of the two columnar transverse transmission rods. A transmission disc is fixedly connected to the middle of the outer wall of the columnar transverse transmission rod. A stop rod is fixedly connected to the rear side of the middle outer side of each of the two rotating side plates. The right side of the horizontal L-shaped side plate... A columnar transverse transmission rod is rotatably connected to the inner wall of the rear side plate. A third transmission disc is fixedly connected to the right end of the columnar transverse transmission rod. A stop block is fixedly connected to the right side of the third transmission disc. A third track is fitted onto the outer wall of the third transmission disc. A fourth transmission disc is fitted onto the inner wall of the third track away from the third transmission disc. The left side of the fourth transmission disc is fixedly connected to the right side of the second gear. A second transmission disc is fixedly connected to the left end of the columnar transverse transmission rod. A track is fitted onto the outer wall of the second transmission disc. The top of the inner wall of the track is fitted onto the outer wall of the transmission disc.

[0010] As a further aspect of the present invention: The inner walls of both guide blocks are slidably connected to columnar push-pull rods; the rear sides of both columnar push-pull rods are fixedly connected to elliptical sliding blocks; the inner walls of both elliptical sliding blocks are fitted onto the outer walls of both abutments; the rear sides of the outer walls of both columnar push-pull rods are fitted with springs; the front ends of both columnar push-pull rods extend to the front sides of both guide blocks and are fixedly connected to sliders; the front sides of both sliders are fixedly connected to second columnar push-pull rods; the front ends of both second columnar push-pull rods are fixedly connected to tension control roller connecting frames; the front inner walls of the tension control roller connecting frames are rotatably connected to tension control rollers; and the outer sides of both sliders are slidably connected to the inner sides of both guide side plates.

[0011] As a further embodiment of the present invention: the scanning mechanism includes two inverted L-shaped side plates, and a horizontal L-shaped side connecting rod is fixedly connected to the middle of the inner side of each of the two inverted L-shaped side plates. The bottom of the inner side of each of the two inverted L-shaped side plates is fixedly connected to the middle of the outer side of each of the two slide rail rods. A vertical guide groove is provided on the inner wall of the front side of the top of each of the two inverted L-shaped side plates. An L-shaped guide plate is fixedly connected to the rear side of the inner side of each of the two horizontal L-shaped side connecting rods. The top of each of the two L-shaped guide plates is fixedly connected to both sides of the bottom of the rectangular frame.

[0012] As a further aspect of the present invention: Lifting side arms are slidably connected to the inner walls of the directional guide grooves opened at the top front sides of the two inverted L-shaped side plates; columnar blocks are fixedly connected to the top inner sides of the two lifting side arms; anti-blocking blocks are fixedly connected to the bottom of the two lifting side arms; abutting rods are attached to the bottom of the two anti-blocking blocks; the bottoms of the two anti-blocking blocks are both beveled; the tops of the two abutting rods are each provided with beveled surfaces opposite to the bottoms of the two anti-blocking blocks; the bottom of the inner sides of the two abutting rods... The unit is fixedly connected to a horizontal connecting rod. The bottoms of the two abutting uprights are slidably connected to the tops of the two slide rail rods. The tops of the inner sides of the two lifting side arms are movably connected to a scanning plate. The left and right sides of the scanning plate are slidably connected to scanning plate side slide grooves. The inner walls of the two scanning plate side slide grooves are slidably connected to the outer walls of the two columnar blocks. The middle parts of the left and right sides of the two scanning plates are rotatably connected to the inner sides of the two side plates. The top two sides of the scanning plate are fixedly connected to the ends of the two lines away from the controller.

[0013] As a further embodiment of the present invention: each tension control assembly includes two top guide side plates, and a horizontal L-shaped connecting rod is fixedly connected to the rear side of the top of each of the two top guide side plates. The inner rear side of each of the two horizontal L-shaped connecting rods is fixedly connected to the outer side of the two side plates. An L-shaped push rod is slidably connected to the bottom of each of the two top guide side plates. A second tension control roller connecting frame is fixedly connected to the front side of each of the two L-shaped push rods. A second tension control roller is rotatably connected to the inner front wall of the second tension control roller connecting frame.

[0014] As a further embodiment of the present invention: a third columnar push rod is fixedly connected to the bottom of the rear side of each of the two L-shaped push rods; the outer walls of the two third columnar push rods are slidably connected to the inner walls of the bottom of the two L-shaped guide plates; the rear ends of the two third columnar push rods extend to the rear side of the two L-shaped guide plates; a second spring is sleeved on the rear side of the outer wall of each of the two third columnar push rods; a linkage push rod is fixedly connected to the rear end of each of the two third columnar push rods; an L-shaped push-pull upright is fixedly connected to the rear side of the two linkage push rods; a second elliptical slide block is fixedly connected to the top of the right side of the rear side of the L-shaped push-pull upright; the inner wall of the second elliptical slide block is sleeved on the outer wall of the abutment block; and the outer sides of the two L-shaped push rods are fixedly connected to the inner sides of the two abutment uprights.

[0015] In addition, the present invention also relates to a method for an intelligent visual inspection device for removing defective rayon yarn, comprising the following steps: Step 1: Load and tension the rayon yarn to be tested according to the prescribed process, and confirm that the rayon yarn passes through the feeding roller, the second tension control roller and the tension control roller in sequence, and is finally fixedly wound on the outer wall of the take-up roller. After loading, lock the fixed end of the take-up roller. Step 2: Start the intelligent vision inspection system of the equipment, calibrate the scanning parameters of the scanning plate, input the preset threshold for judging defective rayon yarn, and confirm that the equipment communication connection is normal. Step 3: Start the motor and drive the take-up roller to rotate at a preset speed, which will drive the entire strand of rayon yarn to move and be transmitted at a uniform speed towards the take-up roller. Step 4: The equipment continuously outputs a stable tension force to the rayon yarn during transmission through the tension adjustment structure. At the same time, the scanning plate swings synchronously with the shape of the rayon yarn to perform full-range uninterrupted visual scanning and acquisition of the entire rayon yarn. Step 5: The vision system compares the scanned rayon yarn images with the preset defect sample library in real time, identifies defective rayon yarn with defects such as thick knots, thin knots, cotton knots, and broken yarns, and records the location information of the defective rayon yarn.

[0016] The beneficial effects of this invention are as follows: This invention, by incorporating a detection frame and scanning mechanism, achieves automatic and dynamic tension adjustment during the inspection of rayon yarn. This compensates for uneven tension caused by wear on the conveyor rollers and changes in ambient temperature and humidity, continuously applying stable tension to the rayon yarn passing through the inspection area. This prevents excessive tension from causing the yarn to sag and deviate from the scanning range, eliminating the interference of uneven tension on visual recognition accuracy, significantly reducing the probability of missed detections and misjudgments, and effectively ensuring the product quality of the rayon yarn leaving the factory. Simultaneously, the dynamically stable tension also eliminates data deviations in subsequent strength testing, accurately reflecting the true mechanical properties of the rayon yarn and further reducing the risk of defective products being exported. Based on this, the swing angle of the scanning plate can be adjusted synchronously according to the actual stretching shape of the rayon yarn, so as to always ensure the complete scanning detection range of the rayon yarn by the scanning plate, improve the comprehensiveness and accuracy of defective yarn identification and detection, solve the problem that the traditional fixed scanning structure cannot adapt to the changes in the position and shape of the rayon yarn under tension fluctuations, and effectively improve the overall stability and reliability of rayon yarn detection. Furthermore, the entire tension adjustment and scanning angle adaptation process is completed synchronously with the power of the take-up roller, eliminating the need for multiple additional power control modules. The overall structure is highly interconnected, compact, and has simple control logic, reducing the manufacturing cost and maintenance difficulty of the equipment. It is suitable for the production needs of batch continuous testing of rayon yarn and effectively improves the overall efficiency of rayon yarn testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional separation structure of the main body of the present invention; Figure 3 This is a three-dimensional structural diagram of the detection frame of the present invention; Figure 4 This is a schematic diagram of the three-dimensional separation structure of the detection frame of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the base frame of the present invention; Figure 6 This is a schematic diagram of the three-dimensional separation structure of the adjustment component of the present invention; Figure 7 This is a three-dimensional structural diagram of the scanning mechanism of the present invention; Figure 8 This is a schematic diagram of the three-dimensional separation structure of the scanning mechanism of the present invention; Figure 9 This is a schematic diagram of the three-dimensional separation structure of the scanning plate connecting frame of the present invention; Figure 10 This is a schematic diagram of the three-dimensional separation structure of the tension control component of the present invention.

[0018] In the diagram: 1. Detection frame; 11. Base frame; 111. L-shaped upright plate; 112. Controller; 113. Wiring; 114. Triangular side plate; 116. Inverted concave plate; 117. Motor connecting block; 118. Motor; 119. Gear; 1110. Columnar transmission rod; 1111. Second gear; 1112. Receiving roller; 1113. Side connecting plate; 1114. Side plate; 1115. Feeding roller; 1116. Base plate; 1117. Slide rail rod; 12. Adjustment assembly; 121. Side connecting base plate; 122. Side upright plate; 123. Rectangular frame; 124. Vertical connecting plate; 125. Front guide rail rod; 126. Guide side plate connecting upright plate; 127. Guide side plate; 128. Guide block; 129. Horizontal L-shaped side plate; 1210. Columnar transverse transmission rod; 1211. Rotating side plate; 1212. Abutment rod; 1213. Transmission disc; 1214. Second transmission disc; 1215. Track; 1216. Columnar transverse transmission rod; 1217. Third transmission disc; 1218. Abutment block; 1219. Rear L-shaped side plate; 1220. Elliptical slide block; 1221. Columnar push-pull rod; 1222. Spring; 1223. Slider; 1224. Second columnar push-pull rod; 1225. Tension control roller connecting frame; 1226. Tension control roller; 1227. Third track; 1228. Support plate; 1229. Fourth transmission disc; 2. Scanning mechanism; 21. Scanning plate connecting frame; 211. Inverted L-shaped side plate; 212. Vertical guide groove; 213. Horizontal L-shaped side connecting rod; 214. L-shaped guide plate; 215. Abutting upright; 2 16. Horizontal connecting rod; 217. Lifting side arm; 218. Anti-blocking block; 219. Columnar block; 2110. Scanning plate; 2111. Scanning plate side slide groove; 22. Tension control assembly; 221. Top guide side plate; 222. Horizontal L-shaped connecting rod; 223. L-shaped push rod; 224. Second tension control roller connecting frame; 225. Second tension control roller; 226. Third columnar push rod; 227. Second spring; 228. Linkage push rod; 229. L-shaped push-pull upright; 2210. Second elliptical slide groove block. Detailed Implementation

[0019] 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.

[0020] like Figure 1-2 As shown, the present invention provides an intelligent visual inspection device for removing defective rayon yarn, including an inspection frame 1, and a scanning mechanism 2 is provided on the top front side of the inspection frame 1.

[0021] like Figure 3-6As shown, the testing frame 1 includes a base frame 11. An adjustment assembly 12 is fixedly connected to the front of the base frame 11. The base frame 11 includes an L-shaped upright plate 111. A controller 112 is fixedly connected to the top rear side of the L-shaped upright plate 111. Lines 113 are fixedly connected to the left and right sides of the top of the controller 112. Triangular side plates 114 are fixedly connected to the left and right sides of the top front side of the L-shaped upright plate 111. An inverted concave plate 116 is fixedly connected to the front bottom of the two triangular side plates 114. A motor connecting block 117 is fixedly connected to the right side of the inverted concave plate 116. A motor 118 is fixedly connected to the bottom of the motor connecting block 117. A gear 119 is fixedly connected to the output end of the motor 118. A receiving roller 11 is rotatably connected to the inner bottom of the inverted concave plate 116. 12. The adjustment assembly 12 includes two side connecting base plates 121. Side upright plates 122 are fixedly connected to the front sides of the inner sides of both side connecting base plates 121. Rectangular frames 123 are fixedly connected to the inner sides of the two side upright plates 122. Vertical connecting plates 124 are fixedly connected to the top of the front and rear sides of the two side upright plates 122. Front guide rail rods 125 are fixedly connected to the inner sides of the two front vertical connecting plates 124. The scanning mechanism 2 includes a scanning plate connecting frame 21. A tension control assembly 22 is provided inside the scanning plate connecting frame 21. A columnar transmission rod 1110 is fixedly connected to the right end of the receiving roller 1112. A second gear 1111 is fixedly connected to the right end of the columnar transmission rod 1110. The outer wall of the second gear 1111 meshes with the outer wall of the gear 119. The front sides of the two triangular side plates 114 are fixedly connected to side plates 1114. The inner wall of the bottom front side of the L-shaped vertical plate 111 is rotatably connected to a feeding roller 1115. The bottom of the L-shaped vertical plate 111 is fixedly connected to a base plate 1116. The left and right sides of the bottom of the base plate 1116 are fixedly connected to slide rails 1117. The bottom rear side of the two side plates 122 is fixedly connected to a support plate 1228. The left and right sides of the rear side of the two support plates 1228 are fixedly connected to a rear L-shaped side plate 1219. The rear sides of the two rear L-shaped side plates 1219 are fixedly connected to the left and right sides of the middle front side of the L-shaped vertical plate 111. The front and rear sides of the top left and right sides of the support plate 1228 are fixedly connected to guide side plates connecting to the vertical plate 126. The left and right sets of guide side plates connecting to the vertical plate 126 are... Guide side plates 127 are fixedly connected to the inner side of each of the two guide side plates 127. Guide blocks 128 are fixedly connected to the rear side of each of the two guide side plates 127. Horizontal L-shaped side plates 129 are fixedly connected to both sides of the rear side of the support plate 1228 on the inner side of each of the two rear L-shaped side plates 1219. Columnar transverse transmission rods 1210 are rotatably connected to the top inner wall of each of the two horizontal L-shaped side plates 129. The left and right ends of the two columnar transverse transmission rods 1210 extend to the outer side of each of the two horizontal L-shaped side plates 129. Rotating side discs 1211 are fixedly connected to the left and right ends of each of the two columnar transverse transmission rods 1210. A transmission disc 1213 is fixedly connected to the middle of the outer wall of the columnar transverse transmission rods 1210. A stop rod 1212 is fixedly connected to the rear side of the middle outer side of each of the two rotating side discs 1211.A columnar transverse transmission rod 1216 is rotatably connected to the inner wall of the rear side of the right-side L-shaped side plate 129. A third transmission disc 1217 is fixedly connected to the right end of the columnar transverse transmission rod 1216. A stop block 1218 is fixedly connected to the right side of the third transmission disc 1217. A third track 1227 is fitted onto the outer wall of the third transmission disc 1217. A fourth transmission disc 1229 is fitted onto the inner wall of the third track 1227 away from the third transmission disc 1217. The left side of the fourth transmission disc 1229 is fixedly connected to the right side of the second gear 1111. A second transmission disc 1214 is fixedly connected to the left end of the columnar transverse transmission rod 1216. A track 1215 is fitted onto the outer wall of the second transmission disc 1214. The top of the inner wall of the track 1215 fits onto the outer wall of the transmission disc 1213. Two guides... Two columnar push-pull rods 1221 are slidably connected to the inner walls of the two push-pull rods 128. Elliptical sliding blocks 1220 are fixedly connected to the rear sides of each columnar push-pull rod 1221. The inner walls of the two elliptical sliding blocks 1220 are fitted onto the outer walls of the two abutment rods 1212. Springs 1222 are fitted onto the rear sides of the outer walls of the two columnar push-pull rods 1221. Slider blocks 1223 are fixedly connected to the front sides of the two guide blocks 128 at the front ends of each columnar push-pull rod 1221. Second columnar push-pull rods 1224 are fixedly connected to the front ends of the two second columnar push-pull rods 1224. Tension control roller connecting frames 1225 are fixedly connected to the front inner walls of the tension control roller connecting frames 1225. Tension control rollers 1226 are rotatably connected to the front inner walls of the tension control roller connecting frames 1225. The outer sides of the two sliders 1223 are slidably connected to the inner sides of the two guide side plates 127. The scanning mechanism 2 includes two inverted L-shaped side plates 211. A horizontal L-shaped side connecting rod 213 is fixedly connected to the middle of the inner side of each of the two inverted L-shaped side plates 211. The bottom of the inner side of each of the two inverted L-shaped side plates 211 is fixedly connected to the middle of the outer side of the two slide rail rods 1117. A vertical guide groove 212 is opened on the inner wall of the front side of the top of each of the two inverted L-shaped side plates 211. An L-shaped guide plate 214 is fixedly connected to the rear side of the inner side of each of the two horizontal L-shaped side connecting rods 213. The top of each of the two L-shaped guide plates 214 is fixedly connected to both sides of the bottom of the rectangular frame 123. A lifting side arm is slidably connected to the inner wall of the vertical guide groove 212 opened on the top of the front side of each of the two inverted L-shaped side plates 211. 217. A columnar block 219 is fixedly connected to the top inner side of each of the two lifting side arms 217. A counter-acting block 218 is fixedly connected to the bottom of each of the two lifting side arms 217. A stop rod 215 is attached to the bottom of each of the two counter-acting blocks 218. The bottom of each of the two counter-acting blocks 218 has a beveled surface. The top of each of the two stop rods 215 has a beveled surface opposite to the bottom of the two counter-acting blocks 218. A horizontal connecting rod 216 is fixedly connected to the bottom inner side of each of the two stop rods 215. The bottom of each of the two stop rods 215 is slidably connected to the top of two slide rail rods 1117. A scanning plate 2110 is movably connected to the top inner side of each of the two lifting side arms 217. Scanning plate side grooves 2111 are slidably connected to the left and right sides of the scanning plate 2110.The inner walls of the two scanning plate side grooves 2111 of the scanning plate 2110 are slidably connected to the outer walls of the two columnar blocks 219. The middle parts of the left and right sides of the two scanning plates 2110 are rotatably connected to the inner sides of the two side plates 1114. The top sides of the scanning plates 2110 are fixedly connected to the ends of the two lines 113 away from the controller 112. The tension control components 22 each include two top guide side plates 221. The rear sides of the top of the two top guide side plates 221 are fixedly connected to horizontal L-shaped connecting rods 222. The inner rear sides of the two horizontal L-shaped connecting rods 222 are fixedly connected to the outer sides of the two side upright plates 122. The bottom of the two top guide side plates 221 are slidably connected to L-shaped push rods 223. The front sides of the two L-shaped push rods 223 are fixedly connected to the second tension control roller connecting frame 224. The inner front side of the second tension control roller connecting frame 224 is rotatably connected to... The second tension control roller 225 has a third columnar push rod 226 fixedly connected to the bottom of the rear side of each of the two L-shaped push rods 223. The outer walls of the two third columnar push rods 226 are slidably connected to the inner walls of the bottom of the two L-shaped guide plates 214. The rear ends of the two third columnar push rods 226 extend to the rear side of the two L-shaped guide plates 214. A second spring 227 is fitted on the rear side of the outer wall of each of the two third columnar push rods 226. A linkage push rod 228 is fixedly connected to the rear side of each of the two linkage push rods 228. An L-shaped push-pull upright 229 is fixedly connected to the rear right side of the L-shaped push-pull upright 229. A second elliptical slide block 2210 is fixedly connected to the top of the right side of the rear side of the L-shaped push-pull upright 229. The inner wall of the second elliptical slide block 2210 fits onto the outer wall of the abutment block 1218. The outer sides of the two L-shaped push rods 223 are fixedly connected to the inner sides of the two abutment uprights 215. When testing rayon yarn is required, the rayon yarn is first wound onto the outer wall of the feed roller 1115, and one end is pulled through the front side of the second tension control roller 225 and the rear side of the tension control roller 1226, and finally fixed to the outer wall of the take-up roller 1112. Then, the motor 118 is started to drive the gear 119 to rotate. The gear 119 meshes with the second gear 1111 to rotate, thereby driving the take-up roller 1112 to rotate at a constant speed to wind up the rayon yarn. At the same time, when the second gear 1111 rotates, it will drive the fourth transmission disc 1229 to drive the third transmission disc 1217 to rotate through the third track 1227, which in turn drives the column. The transverse transmission rod 1216 and the second transmission disk 1214 rotate synchronously. The second transmission disk 1214 drives the transmission disk 1213 to rotate through the track 1215, which makes the transverse transmission rod 1210 rotate as a whole. This drives the abutment rod 1212 on the outer side of the rotating side disk 1211 to make a circular motion. The abutment rod 1212 slides on the inner wall of the elliptical slide block 1220. With the elastic force of the spring 1222, it can drive the columnar push-pull rod 1221 to move back and forth along the guide block 128, pushing the slider 1223, the second columnar push-pull rod 1224 and the tension control roller connecting frame 1225 to move back and forth as a whole. Meanwhile, the third transmission disc 1217 drives the abutment block 1218 to perform circular motion. The abutment block 1218 slides on the inner wall of the second elliptical slide block 2210. With the elastic force of the second spring 227, it can drive the L-shaped push-pull rod 229, the linkage push rod 228, and the third columnar push rod 226 to perform reciprocating motion as a whole. This, in turn, drives the L-shaped push rod 223, the second tension control roller connecting frame 224, and the second tension control roller 225 to perform reciprocating motion as a whole. With the synchronous reciprocating movement of the tension control roller 1226, it can maintain a stable tension on the passing rayon yarn, preventing the rayon yarn from becoming loose or wrinkled during the transmission and detection process. It can drive the L-shaped push rod 223 to move the abutment rod 215 back and forth. When the abutment rod 215 moves forward, it squeezes the anti-abutment block 218 through the cooperation of the oblique surface, which drives the lifting side arm 217 to move upward along the vertical guide groove 212. When the abutment rod 215 moves backward, the anti-abutment block 218 loses its squeezing, and the lifting side arm 217 drives the column block 219 to fall, so that the column block 219 slides on the inner wall of the scanning plate side slide groove 2111, which drives the scanning plate 2110 to swing. The angle is adjusted according to the shape of the rayon yarn, ensuring the scanning plate 2110's scanning detection range of the rayon yarn and improving the comprehensiveness of defective yarn identification. Through the linkage design of the transmission mechanism, only a single drive motor is needed to simultaneously complete the three processes of uniform speed winding, tension adjustment, and scanning angle adaptation of rayon yarn. This simplifies the overall structure of the equipment, reduces the configuration cost of drive components, and ensures that the rayon yarn remains taut throughout the inspection process, preventing defects from being missed due to wrinkles or looseness. Combined with a dynamically adjustable scanning plate, it can further improve the accuracy of visual inspection and the accuracy of identifying defective rayon yarn, providing accurate positional information for the subsequent defective yarn rejection process, and ensuring that the final rayon yarn product meets the standard requirements.

[0022] In addition, the present invention also relates to a method for an intelligent visual inspection device for removing defective rayon yarn, comprising the following steps: Step 1: Load and tension the rayon yarn to be tested according to the prescribed process. Confirm that the rayon yarn passes through the feeding roller 1115, the second tension control roller 225, and the tension control roller 1226 in sequence, and finally fixes and winds it on the outer wall of the take-up roller 1112. After loading, lock the fixed end of the take-up roller 1112. Step 2: Start the intelligent vision inspection system of the device, calibrate the scanning parameters of the scanning plate 2110, input the preset threshold for judging defective rayon yarn, and confirm that the device communication connection is normal. Step 3: Start motor 118 and drive take-up roller 1112 to rotate at a preset speed, thereby driving the entire strand of rayon yarn to move and be transmitted at a uniform speed toward take-up roller 1112. Step 4: The equipment continuously outputs a stable tension force to the rayon yarn during transmission through the tension adjustment structure. At the same time, the scanning plate 2110 swings synchronously with the shape of the rayon yarn to perform full-range uninterrupted visual scanning and acquisition of the entire rayon yarn. Step 5: The vision system compares the scanned rayon yarn images with the preset defect sample library in real time, identifies defective rayon yarn with defects such as thick knots, thin knots, cotton knots, and broken yarns, and records the location information of the defective rayon yarn.

[0023] The working principle of this invention is as follows: When it is necessary to test rayon yarn, the rayon yarn is first wound onto the outer wall of the feeding roller 1115, and one end is pulled through the front side of the second tension control roller 225 and the rear side of the tension control roller 1226, and finally fixed to the outer wall of the take-up roller 1112. Then, the motor 118 is started to drive the gear 119 to rotate. The gear 119 drives the second gear 1111 to rotate through meshing, thereby driving the take-up roller 1112 to rotate at a uniform speed to wind up the rayon yarn. At the same time, when the second gear 1111 rotates, it will drive the fourth transmission disk 1229 to drive the third transmission disk 1217 to rotate through the third track 1227, thereby driving the columnar... The transverse transmission rod 1216 and the second transmission disc 1214 rotate synchronously. The second transmission disc 1214 drives the transmission disc 1213 to rotate via the track 1215, causing the columnar transverse transmission rod 1210 to rotate as a whole. This causes the abutment rod 1212 on the outer side of the rotating side disc 1211 to move in a circular motion. The abutment rod 1212 slides on the inner wall of the elliptical slide block 1220. With the help of the elastic force of the spring 1222, it can drive the columnar push-pull rod 1221 to move back and forth along the guide block 128, pushing the slider 1223, the second columnar push-pull rod 1224, and the tension control roller connecting frame 1225 to move back and forth as a whole. At the same time, the third transmission disc 1216... 17 drives the abutment block 1218 to perform a circular motion. The abutment block 1218 slides on the inner wall of the second elliptical slide block 2210. With the elastic force of the second spring 227, it can drive the L-shaped push-pull rod 229, the linkage push rod 228, and the third columnar push rod 226 to perform a back-and-forth reciprocating motion as a whole. This, in turn, drives the L-shaped push rod 223, the second tension control roller connecting frame 224, and the second tension control roller 225 to perform a back-and-forth reciprocating motion as a whole. With the synchronous reciprocating movement of the tension control roller 1226, it can maintain a stable tension on the passing rayon yarn, preventing the rayon yarn from becoming loose and wrinkled during the transmission and detection process. At the same time, it can also drive the L-shaped push rod 223 to perform a back-and-forth reciprocating motion. The push rod 223 synchronously drives the abutment rod 215 to move back and forth. When the abutment rod 215 moves forward, it squeezes the anti-abutment block 218 through the cooperation of the oblique surface, which drives the lifting side arm 217 to move upward along the vertical guide groove 212. When the abutment rod 215 moves backward, the anti-abutment block 218 loses its squeezing, and the lifting side arm 217 drives the columnar block 219 to fall, so that the columnar block 219 slides on the inner wall of the scanning plate side slide groove 2111, which drives the scanning plate 2110 to swing. The angle is adjusted according to the shape of the rayon yarn, ensuring the scanning plate 2110's scanning detection range of the rayon yarn and improving the comprehensiveness of defective yarn identification.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent visual inspection device for removing defective rayon yarn, comprising an inspection frame (1), characterized in that: A scanning mechanism (2) is provided on the top front side of the detection frame (1); The testing frame (1) includes a base frame (11), and an adjustment component (12) is fixedly connected to the front side of the base frame (11). The base frame (11) includes an L-shaped upright plate (111). A controller (112) is fixedly connected to the top rear side of the L-shaped upright plate (111). Lines (113) are fixedly connected to the top left and right sides of the controller (112). Triangular side plates (114) are fixedly connected to the top left and right sides of the front side of the L-shaped upright plate (111). An inverted concave plate (116) is fixedly connected to the front bottom of the two triangular side plates (114). A motor connecting block (117) is fixedly connected to the right side of the inverted concave plate (116). A motor (118) is fixedly connected to the bottom of the motor connecting block (117). A gear (119) is fixedly connected to the output end of the motor (118). A receiving roller (1112) is rotatably connected to the bottom inner side of the inverted concave plate (116). The adjustment assembly (12) includes two side connecting base plates (121), and side upright plates (122) are fixedly connected to the front side of the inner side of the two side connecting base plates (121). Rectangular frames (123) are fixedly connected to the inner side of the two side upright plates (122). Vertical connecting plates (124) are fixedly connected to the top of the front and rear sides of the two side upright plates (122). Front guide rail rods (125) are fixedly connected to the inner side of the two front vertical connecting plates (124). The scanning mechanism (2) includes a scanning plate connecting frame (21), and a tension control component (22) is provided on the inner side of the scanning plate connecting frame (21).

2. The intelligent visual inspection device for removing defective rayon yarn according to claim 1, characterized in that: The right end of the receiving roller (1112) is fixedly connected to a columnar transmission rod (1110), and the right end of the columnar transmission rod (1110) is fixedly connected to a second gear (1111). The outer wall of the second gear (1111) meshes with the outer wall of the gear (119). The front sides of the two triangular side plates (114) are fixedly connected to side plates (1114). The inner wall of the bottom of the front side of the L-shaped vertical plate (111) is rotatably connected to a feeding roller (1115). The bottom of the L-shaped vertical plate (111) is fixedly connected to a base plate (1116). The left and right sides of the bottom of the base plate (1116) are fixedly connected to slide rail rods (1117).

3. The intelligent visual inspection device for removing defective rayon yarn according to claim 2, characterized in that: A support plate (1228) is fixedly connected to the bottom of the rear side of the two side uprights (122). A rear L-shaped side plate (1219) is fixedly connected to the left and right sides of the rear side of the two support plates (1228). The rear sides of the two rear L-shaped side plates (1219) are fixedly connected to the left and right sides of the middle of the front side of the L-shaped upright (111). A guide side plate connecting upright (126) is fixedly connected to the front and rear sides of the top left and right sides of the support plate (1228). A guide side plate (127) is fixedly connected to the inner side of the left and right sets of guide side plate connecting uprights (126). A guide block (128) is fixedly connected to the rear side of the two guide side plates (127).

4. The intelligent visual inspection device for removing defective rayon yarn according to claim 3, characterized in that: The pallet (1228) is fixedly connected to two horizontal L-shaped side plates (1219) on both sides of the inner side of the two rear L-shaped side plates (1219). A columnar transverse transmission rod (1210) is rotatably connected to the top inner wall of the two horizontal L-shaped side plates (129). Both ends of the two columnar transverse transmission rods (1210) extend to the outer side of the two horizontal L-shaped side plates (129). Rotating side discs (1211) are fixedly connected to both ends of the two columnar transverse transmission rods (1210). A transmission disc (1213) is fixedly connected to the middle of the outer wall of the columnar transverse transmission rod (1210). A stop rod (1212) is fixedly connected to the rear side of the middle outer side of the two rotating side discs (1211). A columnar transverse transmission rod is rotatably connected to the inner wall of the rear side of the right horizontal L-shaped side plate (129). 1216), the right end of the columnar transverse transmission rod (1216) is fixedly connected to the third transmission disc (1217), the right side of the third transmission disc (1217) is fixedly connected to the abutment (1218), the outer wall of the third transmission disc (1217) is fitted with the third track (1227), the inner wall of the third track (1227) away from the third transmission disc (1217) is fitted with the fourth transmission disc (1229), the left side of the fourth transmission disc (1229) is fixedly connected to the right side of the second gear (1111), the left end of the columnar transverse transmission rod (1216) is fixedly connected to the second transmission disc (1214), the outer wall of the second transmission disc (1214) is fitted with the track (1215), and the top of the inner wall of the track (1215) is fitted onto the outer wall of the transmission disc (1213).

5. The intelligent visual inspection device for removing defective rayon yarn according to claim 4, characterized in that: The inner walls of both guide blocks (128) are slidably connected to columnar push-pull rods (1221), and the rear sides of both columnar push-pull rods (1221) are fixedly connected to elliptical sliding blocks (1220). The inner walls of both elliptical sliding blocks (1220) are fitted onto the outer walls of both abutments (1212). The rear sides of the outer walls of both columnar push-pull rods (1221) are fitted with springs (1222). The front ends of both columnar push-pull rods (1221) extend to the two guide blocks (1221). 8) The front side of each slider (1223) is fixedly connected to a slider (1223). The front side of each slider (1223) is fixedly connected to a second columnar push-pull rod (1224). The front end of each second columnar push-pull rod (1224) is fixedly connected to a tension control roller connecting frame (1225). The front inner wall of the tension control roller connecting frame (1225) is rotatably connected to a tension control roller (1226). The outer sides of each slider (1223) are slidably connected to the inner side of each guide side plate (127).

6. The intelligent visual inspection device for removing defective rayon yarn according to claim 5, characterized in that: The scanning mechanism (2) includes two inverted L-shaped side plates (211). A horizontal L-shaped side connecting rod (213) is fixedly connected to the middle of the inner side of each of the two inverted L-shaped side plates (211). The bottom of the inner side of each of the two inverted L-shaped side plates (211) is fixedly connected to the middle of the outer side of each of the two slide rail rods (1117). A vertical guide groove (212) is opened on the inner wall of the front side of the top of each of the two inverted L-shaped side plates (211). An L-shaped guide plate (214) is fixedly connected to the rear side of the inner side of each of the two horizontal L-shaped side connecting rods (213). The top of each of the two L-shaped guide plates (214) is fixedly connected to both sides of the bottom of the rectangular frame (123).

7. The intelligent visual inspection device for removing defective rayon yarn according to claim 6, characterized in that: The inner walls of the directional guide grooves (212) opened on the front top of the two inverted L-shaped side plates (211) are slidably connected to lifting side arms (217). The inner top of the two lifting side arms (217) is fixedly connected to columnar blocks (219). The bottom of the two lifting side arms (217) is fixedly connected to anti-pushing blocks (218). The bottom of the two anti-pushing blocks (218) is attached to abutting rods (215). The bottom of the two anti-pushing blocks (218) is a beveled surface. The top of the two abutting rods (215) is provided with a beveled surface opposite to the bottom of the two anti-pushing blocks (218). The bottom of the inner side of the two abutting rods (215) is fixedly connected to a horizontal connecting rod (216). The bottoms of the two abutting uprights (215) are slidably connected to the tops of the two slide rails (1117). The tops of the inner sides of the two lifting side arms (217) are movably connected to the scanning plate (2110). The left and right sides of the scanning plate (2110) are slidably connected to the scanning plate side slide grooves (2111). The inner walls of the two scanning plate side slide grooves (2111) opened on the scanning plate (2110) are slidably connected to the outer walls of the two columnar blocks (219). The middle parts of the left and right sides of the two scanning plates (2110) are rotatably connected to the inner sides of the two side plates (1114). The tops of the scanning plate (2110) are fixedly connected to the ends of the two lines (113) away from the controller (112).

8. The intelligent visual inspection device for removing defective rayon yarn according to claim 7, characterized in that: The tension control assembly (22) includes two top guide side plates (221). A horizontal L-shaped connecting rod (222) is fixedly connected to the rear side of the top of each of the two top guide side plates (221). The inner rear side of each of the two horizontal L-shaped connecting rods (222) is fixedly connected to the outer side of each of the two side upright plates (122). An L-shaped push rod (223) is slidably connected to the bottom of each of the two top guide side plates (221). A second tension control roller connecting frame (224) is fixedly connected to the front side of each of the two L-shaped push rods (223). A second tension control roller (225) is rotatably connected to the inner front wall of the second tension control roller connecting frame (224).

9. The intelligent visual inspection device for removing defective rayon yarn according to claim 8, characterized in that: A third columnar push rod (226) is fixedly connected to the bottom of the rear side of each of the two L-shaped push rods (223). The outer walls of the two third columnar push rods (226) are slidably connected to the inner walls of the bottom of the two L-shaped guide plates (214). The rear ends of the two third columnar push rods (226) extend to the rear side of the two L-shaped guide plates (214). A second spring (227) is sleeved on the rear side of the outer wall of each of the two third columnar push rods (226). The rear ends of each are fixedly connected to a linkage push rod (228). The rear sides of the two linkage push rods (228) are fixedly connected to an L-shaped push-pull rod (229). The top of the right rear side of the L-shaped push-pull rod (229) is fixedly connected to a second elliptical slide block (2210). The inner wall of the second elliptical slide block (2210) is fitted onto the outer wall of the abutment block (1218). The outer sides of the two L-shaped push rods (223) are fixedly connected to the inner sides of the two abutment rods (215).

10. A method for using an intelligent visual inspection device to remove defective rayon yarn, as described in claim 9, characterized in that: Includes the following steps: Step 1: Load and tension the rayon yarn to be tested according to the prescribed process. Confirm that the rayon yarn passes through the feeding roller (1115), the second tension control roller (225), and the tension control roller (1226) in sequence, and finally is fixedly wound on the outer wall of the take-up roller (1112). After loading, lock the fixed end of the take-up roller (1112). Step 2: Start the intelligent vision inspection system of the equipment, calibrate the scanning parameters of the scanning plate (2110), input the preset threshold for judging defective rayon yarn, and confirm that the equipment communication connection is normal. Step 3: Start the motor (118) and drive the take-up roller (1112) to rotate at a constant speed according to the preset speed, so that the whole strand of rayon yarn can move and be transmitted at a constant speed towards the take-up roller (1112); Step 4: The equipment continuously outputs a stable tension force to the rayon yarn during transmission through the tension adjustment structure. At the same time, the scanning plate (2110) swings synchronously with the shape of the rayon yarn to perform full-range uninterrupted visual scanning and acquisition of the entire rayon yarn. Step 5: The vision system compares the scanned rayon yarn images with the preset defect sample library in real time, identifies defective rayon yarn with defects such as thick knots, thin knots, cotton knots, and broken yarns, and records the location information of the defective rayon yarn.

Images