Yarn online flaw detection device for parallel production scene of multiple yarns

Abstract

The utility model discloses a yarn on-line flaw detection device for a plurality of yarn parallel production scenes. The device comprises a small-pitch parallel yarn online detection station and a large-pitch yarn online inspection station, the small-pitch parallel yarn online detection station is arranged on the upper portion of an elevated iron platform of a yarn production scene, and the large-pitch yarn online inspection station is arranged on the lower portion of the elevated iron platform of the yarn production scene; the small-pitch parallel yarn on-line detection station is arranged above the large-pitch yarn on-line inspection station, and the yarn penetrates through the small-pitch parallel yarn on-line detection station according to a production path and is arranged by passing through the large-pitch yarn on-line inspection station. The multi-station yarn online detection device fills the blank in the field of domestic multi-station yarn online detection, and has the advantages of being high in detection speed, stable and accurate in recognition, high in flexibility degree and suitable for parallel yarn textile machines with various pitches.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment in the textile industry, specifically to an online yarn defect detection device for scenarios involving the parallel production of multiple yarns. Background Technology

[0002] Existing online visual inspection devices for textile surface quality suffer from common problems such as surface imaging interference, unstable and inaccurate detection of surface defects, low efficiency in defect image sample acquisition, and uneven sample distribution. These problems result in low recognition accuracy, unstable high-resolution image acquisition throughout the entire process, and slow processing speed. Utility Model Content

[0003] To address the shortcomings and deficiencies of existing technologies, this invention provides an online yarn defect detection device for parallel production of multiple yarns.

[0004] The technical solution adopted in this utility model is:

[0005] This utility model includes an online inspection station for small-pitch parallel yarns and an online inspection station for large-pitch yarns. The online inspection station for small-pitch parallel yarns is located on the upper part of the elevated iron platform in the yarn production scene, and the online inspection station for large-pitch yarns is located on the lower part of the elevated iron platform in the yarn production scene. The online inspection station for small-pitch parallel yarns is set above the online inspection station for large-pitch yarns. The yarns are arranged through the online inspection station for small-pitch parallel yarns according to the production path and are arranged through the online inspection station for large-pitch yarns.

[0006] The online inspection station for small-pitch parallel yarns includes an overall frame, a camera assembly, a light source assembly, and a yarn background plate. The camera assembly, light source assembly, and yarn background plate are all mounted on the overall frame. The camera assembly is mounted in the middle of the overall frame, the light source assembly is mounted below the camera assembly, and the yarn background plate is mounted in the shooting direction of the camera assembly, so that the camera assembly faces the yarn background plate. The camera assembly and light source assembly are arranged on one side of the yarn, and the yarn background plate is arranged on the other side of the yarn.

[0007] The overall frame is mainly composed of an aluminum profile frame, four ferrule feet, and two electromagnets. The yarn is arranged through the inside of the aluminum profile frame according to a predetermined production path. A ferrule foot is installed at each of the four corners of the lower end face of the aluminum profile frame. An electromagnet is installed between two adjacent ferrule feet. The upper part of the electromagnet is installed on the aluminum profile frame, and the lower part of the electromagnet is in contact with the elevated iron platform of the production scene.

[0008] The camera assembly includes an area scan camera, an overall mounting plate, a manual displacement stage, and a shock-absorbing block. The overall mounting plate is fixed in the middle of the overall frame, and the upper end of the overall mounting plate is fixedly connected to the overall frame. A manual displacement stage is installed on the lower end of the overall mounting plate. A shock-absorbing block is provided between the overall mounting plate and the manual displacement stage. An area scan camera is installed on the manual displacement stage. The manual displacement stage is used to move the area scan camera to adjust the imaging distance of the area scan camera when shooting the yarn. A lens is installed on the area scan camera, and the lens is facing the yarn background plate.

[0009] The light source assembly includes an array light source and a light source mounting bracket. The array light source is fixedly connected to the overall frame through the light source mounting bracket. Adjusting the position and angle of the light source mounting bracket on the overall frame is used to adjust the illumination distance and illumination angle of the array light source.

[0010] The large-pitch yarn online inspection station includes an overall frame, an integrated electrical control cabinet, a display screen assembly, and an inspection assembly.

[0011] The display screen assembly and the inspection assembly are mounted on the overall frame. The integrated electrical control cabinet is installed inside the bottom of the overall frame. Both the display screen assembly and the inspection assembly are electrically connected to the integrated electrical control cabinet. The yarn passes through the side end face of the inspection assembly according to a predetermined production path.

[0012] The overall frame includes an aluminum profile frame and four caster feet; the aluminum profile frame is used to fix the display screen assembly and the inspection assembly, and also to form the outer frame of the integrated electronic control cabinet; a caster foot is installed at each of the four corners of the lower end face of the aluminum profile frame for moving and assisting in positioning the overall frame.

[0013] The inspection assembly mainly consists of an inspection camera group, an inspection light source group, an overall mounting base, a single-axis slide rail, and a guide rail. The single-axis slide rail and the guide rail are arranged in parallel and are both mounted on the overall frame. The overall mounting base is slidably mounted on the single-axis slide rail, the inspection camera group is mounted on the overall mounting base, and the inspection light source group is slidably mounted on the guide rail. The overall mounting base is fixedly connected to the inspection light source group, so that the displacement of the inspection camera group mounted on the overall mounting base along the single-axis slide rail is the same as the displacement of the inspection light source group along the guide rail.

[0014] The inspection camera group mainly consists of an area array camera, an overall mounting plate, a manual displacement stage, and shock-absorbing blocks. The overall mounting plate is mounted on the overall mounting base. The manual displacement stage is mounted on the upper surface of the overall mounting plate. The area array camera is equipped with a lens that faces the yarn. The area array camera is mounted on the manual displacement stage, which is used to move the area array camera and adjust the imaging distance of the area array camera when shooting the yarn. Shock-absorbing blocks are provided between the lower surface of the manual displacement stage and the upper surface of the overall mounting plate.

[0015] The inspection light source group mainly consists of a light source, a light source bracket, and a light source mounting base. The light source mounting base is slidably mounted on a guide rail, and the light source bracket is mounted on the light source mounting base. The light source bracket has an elongated light source mounting hole. The light source is mounted on the light source mounting base by engaging with the elongated light source mounting hole and thus slidably connecting with the light source bracket.

[0016] The beneficial effects of this utility model are reflected in:

[0017] 1. This utility model has a fast detection speed and stable and accurate identification.

[0018] 2. This utility model has a simple structure, high mechanical flexibility, and can adapt to multi-category, multi-pitch yarn production lines, filling the market gap in online product quality inspection for production lines producing multiple yarns simultaneously. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the online inspection station structure for small-pitch parallel yarns.

[0020] In the picture: 11. Overall frame, 12. Camera assembly, 13. Light source assembly, 14. Yarn background board.

[0021] Figure 2 This is a schematic diagram of the online inspection station structure for large-pitch yarns.

[0022] In the diagram: 21. Overall rack, 22. Integrated electrical control cabinet, 23. Display screen assembly, 24. Inspection assembly.

[0023] Figure 3 This is a schematic diagram of the inspection component structure.

[0024] In the diagram: 241, inspection camera group; 242, inspection light source group; 243, single-axis slide; 244, guide rail. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] This utility model includes an online detection station for small-pitch parallel yarns and an online inspection station for large-pitch yarns, and its structural schematic diagram is shown below. Figure 1 and Figure 2 As shown;

[0027] The online inspection station for small-pitch parallel yarns is located on the upper part of the elevated iron platform in the yarn production scene, serving as the upper inspection station. The online inspection station for large-pitch yarns is located on the lower part of the elevated iron platform in the yarn production scene, serving as the lower inspection station. The online inspection station for small-pitch parallel yarns is set above the online inspection station for large-pitch yarns. Multiple strands of small-pitch yarns are arranged through the online inspection station for small-pitch parallel yarns according to the predetermined production path in the production scene, and then through the online inspection station for large-pitch yarns.

[0028] The online inspection station for small-pitch parallel yarns includes an overall frame 11, a camera assembly 12, a light source assembly 13, and a yarn background plate 14;

[0029] The camera assembly 12, the light source assembly 13, and the yarn background plate 14 are all mounted on the overall frame 11. The camera assembly 12 is mounted in the middle of the overall frame 11, and the light source assembly 13 is mounted below the camera assembly 12 to provide imaging auxiliary light for the camera assembly 12. The yarn background plate 14 is mounted in the shooting direction of the camera assembly 12, so that the camera assembly 12 is directly facing the yarn background plate 14. The camera assembly 12 and the light source assembly 13 are arranged on one side of the yarn, and the yarn background plate 14 is arranged on the other side of the yarn.

[0030] The light source component 13 can be positioned directly opposite the yarn background plate 14 or at an angle to illuminate the yarn background plate 14.

[0031] The yarn background plate 14 is used to shield the yarn background, enhance the yarn imaging effect, and eliminate the misleading influence of the production scene on yarn defects.

[0032] The camera assembly 12, the light source assembly 13, and the large-pitch yarn online inspection station are electrically connected to the integrated control cabinet 22.

[0033] The overall frame 11 is mainly composed of an aluminum profile frame, four fuma wheels, and two electromagnets. Multiple strands of small-pitch yarns are arranged through the inside of the aluminum profile frame according to a predetermined production path. A fuma wheel is installed at each of the four corners of the lower end face of the aluminum profile frame. The fuma wheels are used to move and assist in positioning the online inspection station for small-pitch parallel yarns. An electromagnet is arranged between two adjacent fuma wheels. The upper part of the electromagnet is mounted on the aluminum profile frame, and the lower part of the electromagnet is in contact with the elevated iron platform fixed in the production scene. The electromagnet is used to fix the online inspection station for small-pitch parallel yarns.

[0034] The camera assembly 12 includes an area scan camera, an integral mounting plate, a manual displacement stage, and shock absorbers. The integral mounting plate is fixed in the middle of the integral frame 11, and the upper end of the integral mounting plate is fixedly connected to the integral frame 11. A manual displacement stage is installed on the lower end of the integral mounting plate. A shock absorber is provided between the integral mounting plate and the manual displacement stage to eliminate the vibration transmitted from the steel platform to the camera through the frame, and to prevent high-frequency vibrations in the yarn production process from affecting the camera imaging, thereby improving the accuracy of defect judgment. An area scan camera is installed on the manual displacement stage, and the manual displacement stage is used to move the area scan camera to adjust the imaging distance of the area scan camera when shooting the yarn. A lens is installed on the area scan camera, and the lens is facing the yarn background plate 14.

[0035] The light source assembly 13 is used to provide imaging auxiliary light to the camera assembly 12. The light source assembly 13 includes an array light source and a light source mounting bracket. The array light source is fixedly connected to the overall frame 11 through the light source mounting bracket. By adjusting the position and angle of the light source mounting bracket on the overall frame 11, the illumination distance and illumination angle of the array light source can be adjusted.

[0036] The large-pitch yarn online inspection station includes an overall frame 21, an integrated electrical control cabinet 22, a display screen assembly 23, and an inspection assembly 24;

[0037] The display assembly 23 and the inspection assembly 24 are mounted on the overall frame 21. A part of the overall frame 21 serves as the outer frame of the integrated electrical control cabinet 22. The integrated electrical control cabinet 22 is installed inside the bottom of the overall frame 21. The display assembly 23 and the inspection assembly 24 are both electrically connected to the integrated electrical control cabinet 22. Multiple strands of small-pitch yarn pass through the side end face of the inspection assembly 24 according to a predetermined production path.

[0038] The integrated electrical control cabinet 22 mainly consists of electrical components, an electrical mounting plate, and an industrial computer. The electrical components include conventional electrical accessories such as PLCs, relays, switching power supplies, and terminal blocks. The electrical components provide energy supply and logic control for the entire machine. The electrical mounting plate is used to fix the relevant electrical components. The industrial computer is used to process the overall image of the equipment. The display screen assembly 23 consists of a monitor, a monitor bracket, and a keyboard and mouse. It is used for software display, settings, and real-time monitoring of defect detection. The monitor is mounted on the monitor bracket and is used to arrange the keyboard and mouse and adjust the monitor's height and orientation. Both the monitor and the keyboard and mouse are electrically connected to the integrated electrical control cabinet 22.

[0039] The overall frame 21 includes an aluminum profile frame and four caster feet; the aluminum profile frame is used to fix the display screen assembly 23 and the inspection assembly 24, and also to form the outer frame of the integrated electrical control cabinet 22; a caster foot is installed at each of the four corners of the lower end face of the aluminum profile frame for moving and assisting in positioning the overall frame 21, and the distance between the camera light source and the yarn being measured can be adjusted by moving the overall frame 21.

[0040] The structural diagram of the inspection component 24 is shown below. Figure 3 As shown, the inspection component 24 mainly consists of an inspection camera group 241, an inspection light source group 242, an overall mounting base, a single-axis slide rail 243, and a guide rail 244.

[0041] The single-axis slide 243 and guide rail 244 are arranged in parallel and are both mounted on the overall frame 21. The overall mounting base is slidably mounted on the single-axis slide 243. The inspection camera group 241 is mounted on the overall mounting base, and the inspection light source group 242 is slidably mounted on the guide rail 244. The overall mounting base and the inspection light source group 242 are rigidly connected by machined parts, so that the two can slide synchronously, thereby making the displacement of the inspection camera group 241 along the single-axis slide 243 the same as the displacement of the inspection light source group 242 along the guide rail 244.

[0042] More specifically, the single-axis slide 243 is driven by a servo motor, and the directional and quantitative displacement along the direction of the single-axis slide 243 is transmitted to the inspection camera group 241 and the inspection light source group 242 through the overall mounting base.

[0043] The inspection camera group 241 mainly consists of an area array camera, an overall mounting plate, a manual displacement stage, and shock absorbers. The overall mounting plate is mounted on the overall mounting base and is used to adjust the imaging height and angle of the area array camera. The manual displacement stage is mounted on the upper surface of the overall mounting plate. The area array camera is equipped with a lens that faces the multi-strand small-pitch yarn. The area array camera is mounted on the manual displacement stage, which is used to move the area array camera and adjust the imaging distance of the yarn. Shock absorbers are installed between the lower surface of the manual displacement stage and the upper surface of the overall mounting plate to eliminate vibrations transmitted from the ground to the camera through the frame.

[0044] The inspection light source group 242 mainly consists of a light source, a light source bracket, and a light source mounting base. The light source mounting base is slidably mounted on the guide rail 244, and the light source bracket is mounted on the light source mounting base. The light source bracket has an elongated light source mounting hole, which provides space for adjusting the overall height of the light source. The light source is mounted on the light source mounting base by engaging with the elongated light source mounting hole and then slidingly connecting with the light source bracket.

[0045] The workflow of this utility model is as follows: the small-pitch parallel yarn online detection station simultaneously detects multiple equal-pitch yarns located at the upper station of the steel structure platform. At this time, the equal-pitch yarns pass through the overall frame. At this time, the light source component illuminates the equal-pitch yarns, the background plate eliminates the influence of the environmental scene on the yarn imaging, the camera component continuously captures images of the yarns, and transmits the yarn images to the industrial control computer in the integrated cabinet of the electrical control unit through the data transmission line for processing. Then, the processing results are transmitted to the display screen component through the data transmission line.

[0046] The large-pitch yarn online inspection station uses a PLC-controlled inspection component in an integrated electrical control cabinet to inspect the yarn on a single-axis slide rail according to the pitch corresponding to the large-pitch yarn. During inspection, the inspection component 24 moves along the single-axis slide rail. During this movement, the inspection camera group and inspection light source group mounted on the inspection component 24 work together to capture images of the inspected yarn. The acquired images are transmitted to the integrated electrical control cabinet of the large-pitch yarn online inspection station via a data cable. The industrial control computer classifies and processes the acquired images and transmits the processing results to the display screen via the data transmission cable.

[0047] The above description of the embodiments is intended to detail the technical concept and key features of this utility model, and is aimed at helping those skilled in the art to understand the content of the utility model and implement it accordingly, but is not intended to limit the scope of protection of this utility model. Any equivalent substitutions, changes or modifications made based on the core spirit and technical essence of this utility model should be considered as being covered within the scope of protection of this utility model, so as to ensure the applicability and innovativeness of its technical solution in various situations.

Claims

1. A yarn online defect detection device for parallel production of multiple yarns, characterized in that: This includes online inspection stations for small-pitch parallel yarns and online inspection stations for large-pitch yarns; The small-pitch parallel yarn online inspection station is located on the upper part of the elevated iron platform in the yarn production scene, and the large-pitch yarn online inspection station is located on the lower part of the elevated iron platform in the yarn production scene. The small-pitch parallel yarn online inspection station is set above the large-pitch yarn online inspection station. The yarn is arranged through the small-pitch parallel yarn online inspection station according to the production path and passes through the large-pitch yarn online inspection station.

2. The yarn online defect detection device for parallel production of multiple yarns according to claim 1, characterized in that: The small-pitch parallel yarn online detection station includes an overall frame, a camera assembly (12), a light source assembly (13), and a yarn background plate (14); the camera assembly (12), the light source assembly (13), and the yarn background plate (14) are all mounted on the overall frame. The camera assembly (12) is mounted in the middle of the overall frame, the light source assembly (13) is mounted below the camera assembly (12), and the yarn background plate (14) is mounted in the shooting direction of the camera assembly (12), so that the camera assembly (12) faces the yarn background plate (14); the camera assembly (12) and the light source assembly (13) are arranged on one side of the yarn, and the yarn background plate (14) is arranged on the other side of the yarn.

3. The yarn online defect detection device for parallel production of multiple yarns according to claim 2, characterized in that: The overall frame is mainly composed of an aluminum profile frame, four ferrule feet, and two electromagnets. The yarn is arranged through the inside of the aluminum profile frame according to a predetermined production path. A ferrule foot is installed at each of the four corners of the lower end face of the aluminum profile frame. An electromagnet is installed between two adjacent ferrule feet. The upper part of the electromagnet is installed on the aluminum profile frame, and the lower part of the electromagnet is in contact with the elevated iron platform of the production scene.

4. The online yarn defect detection device for parallel production of multiple yarns according to claim 2, characterized in that: The camera assembly (12) includes an area array camera, an overall mounting plate, a manual displacement stage, and a shock-absorbing block; the overall mounting plate is fixed in the middle of the overall frame, the upper end of the overall mounting plate is fixedly connected to the overall frame, the lower end of the overall mounting plate is equipped with a manual displacement stage, a shock-absorbing block is provided between the overall mounting plate and the manual displacement stage, the area array camera is mounted on the manual displacement stage, the manual displacement stage is used to move the area array camera and thereby adjust the imaging distance of the area array camera to capture the yarn, the area array camera is equipped with a lens, and the direction of the lens is facing the yarn background plate (14).

5. The yarn online defect detection device for parallel production of multiple yarns according to claim 2, characterized in that: The light source assembly (13) includes an array light source and a light source mounting bracket. The array light source is fixedly connected to the overall frame through the light source mounting bracket. Adjusting the position and angle of the light source mounting bracket on the overall frame is used to adjust the illumination distance and illumination angle of the array light source.

6. The online yarn defect detection device for parallel production of multiple yarns according to claim 1, characterized in that: The large-pitch yarn online inspection station includes an overall frame, an integrated electrical control cabinet (22), a display screen assembly (23), and an inspection assembly (24). The display screen assembly (23) and the inspection assembly (24) are installed on the overall frame. The integrated electrical control cabinet (22) is installed at the bottom of the overall frame. The display screen assembly (23) and the inspection assembly (24) are both electrically connected to the integrated electrical control cabinet (22). The yarn passes through the side end face of the inspection assembly (24) according to the predetermined production path.

7. The online yarn defect detection device for parallel production of multiple yarns according to claim 6, characterized in that: The overall frame includes an aluminum profile frame and four fusible wheel feet; the aluminum profile frame is used to fix the display screen assembly (23) and the inspection assembly (24), and also to form the outer frame of the integrated electrical control cabinet (22); a fusible wheel foot is installed at each of the four corners of the lower end face of the aluminum profile frame for moving and assisting in positioning the overall frame.

8. The online yarn defect detection device for parallel production of multiple yarns according to claim 6, characterized in that: The inspection component (24) mainly consists of an inspection camera group (241), an inspection light source group (242), an overall mounting base, a single-axis slide rail (243), and a guide rail (244). The single-axis slide rail (243) and the guide rail (244) are arranged in parallel and are both mounted on the overall frame. The overall mounting base is slidably mounted on the single-axis slide rail (243), the inspection camera group (241) is mounted on the overall mounting base, and the inspection light source group (242) is slidably mounted on the guide rail (244). The overall mounting base is fixedly connected to the inspection light source group (242), so that the displacement of the inspection camera group (241) mounted on the overall mounting base along the single-axis slide rail (243) is the same as the displacement of the inspection light source group (242) along the guide rail (244).

9. The online yarn defect detection device for parallel production of multiple yarns according to claim 8, characterized in that: The inspection camera group (241) mainly consists of an area array camera, an overall mounting plate, a manual displacement stage, and shock-absorbing blocks. An overall mounting plate is installed on the overall mounting base. The manual displacement stage is installed on the upper surface of the overall mounting plate. The area array camera is equipped with a lens that faces the yarn. The area array camera is installed on the manual displacement stage. The manual displacement stage is used to move the area array camera and adjust the imaging distance of the area array camera when shooting the yarn. A shock-absorbing block is provided between the lower surface of the manual displacement stage and the upper surface of the overall mounting plate.

10. The online yarn defect detection device for parallel production of multiple yarns according to claim 8, characterized in that: The inspection light source group (242) mainly consists of a light source, a light source bracket and a light source mounting base. The light source mounting base is slidably mounted on the guide rail (244), and the light source bracket is mounted on the light source mounting base. The light source bracket has an elongated light source mounting hole. The light source is mounted on the light source mounting base by engaging with the elongated light source mounting hole and then slidingly connecting with the light source bracket.

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