Knitted fabric automatic winding and unwinding intelligent cloth inspecting equipment

Abstract

The invention relates to the technical field of cloth inspecting machines, and particularly discloses knitted fabric automatic winding and unwinding intelligent cloth inspecting equipment which comprises a base, an unwinding mechanism arranged on one side of the base and a winding mechanism arranged on the side, away from the unwinding mechanism, of the base. The base comprises a frame body, a shooting mechanism arranged above the frame body, a label mechanism arranged on the frame body and an encoder arranged between the unwinding mechanism and the winding mechanism and used for detecting the moving position and speed of the knitted fabric, and the shooting mechanism, the label mechanism and the encoder are all electrically connected with an external control center. Through cooperative work of the base, the unwinding mechanism, the winding mechanism, the shooting mechanism, the label mechanism and the encoder, efficient and accurate knitted fabric quality detection is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of cloth inspection machines, and in particular discloses an intelligent cloth inspection device for automatically unwinding and reeling knitted cloth. Background Art

[0002] In the production process of knitted fabrics, quality inspection of knitted fabrics is a crucial link. The traditional manual inspection method is not only inefficient, but also prone to missed inspections or misinspections. In order to solve this problem, the market is in urgent need of a knitted fabric inspection device that can automatically reel in and out and intelligently inspect fabrics. The device must have the ability to detect defects in knitted fabrics with high precision and accurately mark the defects. At the same time, it must ensure that the tension of the knitted fabric is constant during the reeling and unreeling process, and have functions such as fault warning and fabric pre-cleaning treatment to improve production efficiency and product quality. Summary of the invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, an object of the present invention is to provide an intelligent cloth inspection device for automatically reeling and unreeling knitted cloth.

[0004] To achieve the above-mentioned purpose, the present invention provides an intelligent cloth inspection device for automatic unwinding and rewinding of knitted fabrics, comprising a base, an unwinding mechanism arranged on one side of the base, and a rewinding mechanism arranged on a side of the base away from the unwinding mechanism; the base comprises a frame, a shooting mechanism arranged above the frame, a labeling mechanism arranged on the frame, and an encoder arranged between the unwinding mechanism and the rewinding mechanism for detecting the moving position and speed of the knitted fabric, the shooting mechanism, the labeling mechanism, and the encoder are all electrically connected to an external control center, the unwinding mechanism unwinds the knitted fabric onto a cloth guide roller on the base, the encoder detects the moving position and speed of the knitted fabric in real time and transmits the data to the control center, the control center dynamically adjusts the shooting frequency of the shooting mechanism according to the speed data provided by the encoder, the shooting mechanism shoots the knitted fabric unwound on the cloth guide roller, and the photographed graphic data is transmitted back to the control center, the control center accurately marks the knitted fabric defect points in the graphic data in combination with the position and speed data provided by the encoder and forms position data, the control center controls the labeling mechanism to label the knitted fabric defect points via the position data, and the marked knitted fabric is rewound via the rewinding mechanism.

[0005] Through the coordinated work of the base, unwinding mechanism, rewinding mechanism, shooting mechanism, labeling mechanism and encoder, efficient and accurate knitted fabric quality inspection is achieved. The unwinding mechanism places the knitted fabric on the fabric guide roller, and the encoder detects the moving position and speed of the knitted fabric in real time and transmits the data to the control center. The control center dynamically adjusts the shooting frequency based on these data to ensure that the shooting mechanism can accurately capture the image of the knitted fabric. The captured image data is transmitted back to the control center, and combined with the position and speed data provided by the encoder, the defect points are accurately marked and the position data is formed. The labeling mechanism marks the defect points according to the position data, and finally the rewinding mechanism rewinds the marked knitted fabric. Through these technical means, the equipment can efficiently and accurately detect the quality of knitted fabrics, significantly improving the efficiency and accuracy of fabric inspection.

[0006] The unwinding mechanism and the winding mechanism both include a support frame, a cloth winding roller rotatably arranged on the support frame, a driving member driving the cloth winding roller to rotate, and a tension sensor arranged on the support frame. The knitted fabric is placed on the cloth winding roller, and the driving member drives the cloth winding roller to rotate to move the knitted fabric from the unwinding mechanism to the winding mechanism. The tension sensor is used to detect the tension change in real time during the unwinding or winding process. The tension sensor feeds back the detected tension data to the control center, and the control center adjusts the rotation speed of the driving member based on the tension data to maintain constant tension.

[0007] Tension sensors can be in various forms such as strain gauge tension sensors, fiber optic tension sensors or laser tension sensors. Strain gauge tension sensors measure tension changes by the deformation of strain gauges, fiber optic tension sensors measure tension by the bending degree of optical fibers, and laser tension sensors measure tension by the displacement changes of lasers. The drive parts can be servo motors or stepper motors. Servo motors have the characteristics of high precision and fast response, and are suitable for occasions requiring precise control. Stepper motors have good stability and low cost. The control center can use embedded control systems or industrial control computers. Embedded control systems have the characteristics of small size and low power consumption, and are suitable for occasions with limited space. Industrial control computers have powerful computing power and scalability, and are suitable for complex control tasks.

[0008] By real-time monitoring and adjusting the tension, the tension of the knitted fabric is ensured to be constant during the winding and unwinding process, avoiding deformation or damage of the knitted fabric due to tension changes. Compared with the prior art, the present application improves the stability and quality of the knitted fabric winding and unwinding, reduces the scrap rate, and improves production efficiency.

[0009] The label mechanism includes a first guide rail arranged on the frame, a label unit slidably arranged on the first guide rail, and a first servo motor driving the label unit to move back and forth left and right. The label unit includes a base slidably arranged on the first guide rail, a label supply component arranged on the base, and a marking component arranged on the side of the label supply component. The label supply component includes a first reel for placing label paper, a label pressure roller, an identification seat, and a second reel for reeling up the torn label paper. The label paper is unwound from the first reel to the identification seat and then rewound from the second reel to form an unwinding path. The label pressure roller is used to compact and flatten the label paper on the unwinding path.

[0010] The first guide rail in the label mechanism can be made of high-strength aluminum alloy material to ensure that it will not deform during long-term use. The base of the label unit can be connected to the first guide rail through a high-precision slide rail to achieve smooth sliding. The first reel and the second reel in the label supply component can be automatically tensioned by a spring mechanism or a pneumatic device to ensure that the tension of the label paper is constant during the unwinding and rewinding process. The identification seat can be equipped with a photoelectric sensor to detect the position of the label paper to ensure the accurate positioning of the label paper on the unwinding path. The label pressure roller can be made of silicone material to provide sufficient pressing force while avoiding damage to the label paper. Through the left and right movement of the label unit and the efficient operation of the label supply component, the high precision and high reliability of the marking process are ensured, which solves the problems of low efficiency and large errors in traditional manual marking methods and improves the inspection quality and production efficiency of knitted fabrics.

[0011] The marking component includes a second guide rail arranged on the base, a first slider arranged on the second guide rail for reciprocating sliding back and forth, a third guide rail arranged on the first slider, a second slider arranged on the third guide rail for reciprocating sliding up and down, and a marking component arranged on the second slider, the marking component includes a marking head, an air pump driving the marking head to approach or move away from the knitted cloth, after the marking head reciprocates through the second guide rail and the third guide rail to identify the seat, the marking head absorbs the label on the label paper on the identification seat, and then the air pump drives the marking head that has absorbed the label to approach the defect point of the knitted cloth to stick the label on the defect point; the marking component also includes a cloth pressing roller arranged at the bottom of the base.

[0012] The marking head can move accurately in multiple directions by setting multiple sliding rails and sliders. The marking part drives the marking head through an air pump to absorb the label and stick it on the defective point. The cloth pressing roller helps to fix the knitted fabric for accurate marking. Through the cooperation of these technical features, the defective points of knitted fabrics are accurately marked. The marking head can be flexibly moved to the specified position by setting multi-directional sliding rails and sliders. The marking head driven by the air pump can accurately absorb and attach the label, and the cloth pressing roller provides a stable working environment. These technical means jointly solve the problem of how to achieve accurate marking of defective points of knitted fabrics.

[0013] The surface of the cloth pressing roller is provided with an elastic rubber layer, and the inside of the cloth pressing roller is hollow and has a built-in heating device. When the marking head is labeling, the cloth pressing roller first heats and flattens the area near the defective point of the knitted cloth and waits for the marking head to perform the marking operation.

[0014] By setting an elastic rubber layer and an internal hollow structure on the surface of the cloth pressing roller and a built-in heating device, the function of heating and flattening the area near the defective point of the knitted cloth before the marking head is labeled is realized. Compared with the prior art, the technical solution of the present application can effectively avoid damage to the knitted cloth during the marking process, ensure that the label can be firmly attached, improve the accuracy and stability of the marking, and significantly improve the detection and marking efficiency of knitted cloth.

[0015] The shooting mechanism includes a cloth inspection cover plate arranged on a frame, and a plurality of linear array cameras installed on the inner side of the cloth inspection cover plate. The plurality of linear array cameras are arranged at intervals along the width direction of the knitted cloth, and the scanning lines of each linear array camera are connected to each other to cover the entire width of the knitted cloth. Each linear array camera is provided with a ring light source.

[0016] By setting up multiple linear array cameras to be spaced along the width direction of the knitted fabric, and connecting the scanning lines of each camera to each other, high-precision detection of the full width of the knitted fabric can be achieved. The setting of the ring light source ensures the uniformity of the illumination, improves the image quality and detection accuracy. Compared with the prior art, the technical solution of the present application can effectively solve the problems of low efficiency, easy missed detection and false detection of traditional manual fabric inspection, realize the comprehensive coverage detection of knitted fabric, and improve the accuracy and reliability of detection.

[0017] The cloth inspection cover includes a first plate, a second plate integrally formed with the first plate, and two groups of side plates arranged on both sides of the first plate and the second plate, and the angle between the first plate and the second plate is 45-120°; the shooting mechanism is arranged on the second plate, and the frame also includes a first pressing roller and a second pressing roller, and the second pressing roller is installed obliquely above the first pressing roller, and the knitted cloth passes through the first pressing roller and the second pressing roller in sequence, and the first pressing roller and the second pressing roller press the knitted cloth to form an inclined guide surface together, and the reference surface of the second plate is parallel to the inclined guide surface.

[0018] The inspection cover includes multiple plates and side plates. Through a specific angle design, the shooting mechanism can be stably installed on the second plate. The design and installation position of the first pressing roller and the second pressing roller keep the knitted fabric stable during the shooting process, forming an inclined guide surface parallel to the reference surface of the second plate, ensuring that the shooting mechanism can accurately shoot the knitted fabric. Through this design, the problem of keeping the knitted fabric stable and accurate during the shooting process is solved, ensuring the reliability and accuracy of the shooting data.

[0019] The support frames of the unwinding mechanism and the winding mechanism are both provided with a fault warning device, which includes a vibration sensor and an alarm. The vibration sensor monitors the vibration of the cloth winding roller in real time, and when abnormal vibration is detected, the alarm is triggered to send out an alarm signal, and at the same time, the fault information is transmitted back to the control center, and the control center controls the unwinding mechanism and the winding mechanism to stop operating.

[0020] Vibration sensors can be of various types, such as acceleration sensors or vibration velocity sensors. Alarms can be sound and light alarms or other forms of alarm devices. Vibration sensors are installed on the support frames of the unwinding mechanism and the rewinding mechanism, and can monitor the vibration of the cloth roller in real time. When the vibration sensor detects abnormal vibration, the alarm immediately sends an alarm signal and transmits the fault information back to the control center. Based on the fault information, the control center quickly controls the unwinding mechanism and the rewinding mechanism to stop operating, avoiding further equipment damage and production accidents. Furthermore, the control center can also record and analyze the fault information for maintenance and troubleshooting.

[0021] The cloth inspection equipment also includes a cloth pre-cleaning processing module, which includes a plurality of groups of electrostatic adsorption rollers arranged on a frame, the electrostatic adsorption rollers are arranged on a transmission path between the unwinding mechanism and the shooting mechanism, and the surface of the electrostatic adsorption rollers is coated with a conductive polymer material, which adsorbs fine particles remaining on the surface of the cloth through a high-voltage electrostatic field.

[0022] By setting up a fabric pre-cleaning processing module, the problem of cleaning the fabric before it enters the shooting mechanism can be effectively solved. Compared with the prior art, the pre-cleaning processing module of the present application can significantly reduce the residual particles on the fabric surface, reduce the detection error, and improve the detection accuracy. At the same time, by adopting electrostatic adsorption technology, fine particles on the fabric surface can be efficiently removed to ensure the cleanliness of the fabric before it enters the shooting mechanism, thereby improving the working efficiency and detection accuracy of the entire fabric testing equipment.

[0023] The electrostatic adsorption roller adopts a composite structure of permanent magnet and electrode plate. The roller core has a built-in rare earth permanent magnet to form a radial gradient magnetic field. The surface of the roller core is covered with an electrode plate. The electrode plate is powered by a pulse power supply to generate an alternating electrostatic field.

[0024] By adopting a composite structure of permanent magnets and electrode plates, the electrostatic adsorption roller can not only improve the adsorption effect of fine particles on the surface of knitted fabrics, but also significantly enhance the stability and reliability of the adsorption process. Compared with traditional electrostatic adsorption rollers, this technical solution has higher adsorption efficiency and longer service life, and can effectively solve the problem of fine particles being difficult to remove during knitted fabric inspection, thereby improving the inspection quality and production efficiency of knitted fabrics.

[0025] The fault warning device also includes a voiceprint recognition module, which collects the running sound waves of the cloth roller bearing and identifies early wear characteristics through a convolutional neural network; a temperature control compensation unit, which starts the air cooling circulation system to reduce friction heat when it detects that the local temperature exceeds a set threshold; and a predictive maintenance module, which generates a remaining life assessment report based on the vibration spectrum and temperature curve.

[0026] A quantum dot-coated friction power generation unit is embedded in the bearing of the cloth guide roller, which uses the tiny vibrations of the cloth during its movement to generate microcurrents to power the device sensor network (such as encoders and tension sensors), reducing dependence on external cables.

[0027] Beneficial effects of the present invention: The present invention realizes the efficient collaborative operation of automatic unwinding and winding of knitted fabrics and intelligent fabric inspection by integrating modules such as a base, an unwinding mechanism, a winding mechanism, a shooting mechanism, a labeling mechanism and an encoder. The efficiency and accuracy of fabric inspection are significantly improved by dynamically adjusting the shooting frequency, real-time monitoring of the moving position and speed of the knitted fabric, accurately marking defect points and automatically labeling. At the same time, the application of tension sensors ensures that the tension of the knitted fabric is constant during the unwinding and winding process, avoiding deformation or damage; the addition of a fault warning device and a fabric pre-cleaning treatment module further improves the stability and detection accuracy of the equipment. In summary, the present invention not only solves many drawbacks of traditional manual fabric inspection methods, but also significantly improves the production efficiency and product quality of knitted fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the label mechanism of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the label unit of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the marking component of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the photographing mechanism of the present invention;

[0033] Figure 6 A cross-sectional view of the present invention as a whole;

[0034] Figure 7 It is a cross-sectional view of the electrostatic adsorption roller of the present invention.

[0035] Reference numerals include:

[0036] 1. Base; 2. Unwinding mechanism; 3. Rewinding mechanism; 4. Frame; 5. Photographing mechanism; 6. Labeling mechanism; 7. Encoder; 8. Support frame; 9. Cloth roll; 11. Tension sensor; 12. First guide rail; 13. Label unit; 14. First servo motor; 15. Base; 16. Label supply component; 17. Marking component; 18. First reel; 19. Label pressing roller; 21. Identification seat; 22. Second reel; 23. Second guide rail; 24. First slider; 25. Third guide rail; 26. Second slider; 27. Marking component; 28. Marking head; 29. ​​Air pump; 31. Cloth pressing roller; 32. Cloth inspection cover; 33. Linear array camera; 34. Ring light source; 35. First plate; 36. Second plate; 37. Side plate; 38. First pressing roller; 39. Second pressing roller; 41. Inclined guide surface; 42. Fault warning device; 43. Vibration sensor; 44. Alarm; 45. Cloth pre-cleaning processing module; 46. Electrostatic adsorption roller; 47. Permanent magnet; 48. Electrode plate. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0038] See also Figures 1 to 7 As shown, a knitted fabric automatic unwinding and rewinding intelligent fabric inspection device of the present invention comprises a base 1, an unwinding mechanism 2 arranged on one side of the base 1, and a rewinding mechanism 3 arranged on the side of the base 1 away from the unwinding mechanism 2; the base 1 comprises a frame 4, a shooting mechanism 5 arranged above the frame 4, a labeling mechanism 6 arranged on the frame 4, and an encoder 7 arranged between the unwinding mechanism 2 and the rewinding mechanism 3 for detecting the moving position and speed of the knitted fabric, the shooting mechanism 5, the labeling mechanism 6, and the encoder 7 are all electrically connected to an external control center, the unwinding mechanism 2 unwinds the knitted fabric onto the fabric guide roller on the base 1, The encoder 7 detects the moving position and speed of the knitted fabric in real time and transmits the data to the control center. The control center dynamically adjusts the shooting frequency of the shooting mechanism 5 according to the speed data provided by the encoder 7. The shooting mechanism 5 shoots the knitted fabric unwound on the cloth guide roller, and the photographed graphic data is transmitted back to the control center. The control center accurately marks the knitted fabric defect points in the graphic data based on the position and speed data provided by the encoder 7 and forms position data. The control center controls the labeling mechanism 6 to label the knitted fabric defect points through the position data, and the marked knitted fabric is wound up by the winding mechanism 3.

[0039] Through the coordinated work of the base 1, the unwinding mechanism 2, the rewinding mechanism 3, the shooting mechanism 5, the labeling mechanism 6 and the encoder 7, efficient and accurate knitted fabric quality inspection is achieved. The unwinding mechanism 2 places the knitted fabric on the fabric guide roller, and the encoder 7 detects the moving position and speed of the knitted fabric in real time and transmits the data to the control center. The control center dynamically adjusts the shooting frequency based on these data to ensure that the shooting mechanism 5 can accurately capture the image of the knitted fabric. The captured image data is transmitted back to the control center, and combined with the position and speed data provided by the encoder 7, the defect points are accurately marked and the position data is formed. The labeling mechanism 6 marks the defect points according to the position data, and finally the rewinding mechanism 3 rewinds the marked knitted fabric. Through these technical means, the equipment can efficiently and accurately detect the quality of knitted fabrics and significantly improve the efficiency and accuracy of fabric inspection.

[0040] The unwinding mechanism 2 and the winding mechanism 3 both include a support frame 8, a cloth winding roller 9 rotatably arranged on the support frame 8, a driving member driving the cloth winding roller 9 to rotate, and a tension sensor 11 arranged on the support frame 8. The knitted fabric is placed on the cloth winding roller 9, and the driving member drives the cloth winding roller 9 to rotate to move the knitted fabric from the unwinding mechanism 2 to the winding mechanism 3. The tension sensor 11 is used to detect the tension change in real time during the unwinding or winding process. The tension sensor 11 feeds back the detected tension data to the control center, and the control center adjusts the rotation speed of the driving member based on the tension data to maintain constant tension.

[0041] The tension sensor 11 can be in various forms such as a strain gauge tension sensor 11, an optical fiber tension sensor 11 or a laser tension sensor 11. The strain gauge tension sensor 11 measures the tension change by the deformation of the strain gauge, the optical fiber tension sensor 11 measures the tension by the bending degree of the optical fiber, and the laser tension sensor 11 measures the tension by the displacement change of the laser. The drive part can be a servo motor or a stepper motor. The servo motor has the characteristics of high precision and fast response, and is suitable for occasions requiring precise control. The stepper motor has good stability and low cost. The control center can adopt an embedded control system or an industrial control computer. The embedded control system has the characteristics of small size and low power consumption, and is suitable for occasions with limited space. The industrial control computer has strong computing power and scalability, and is suitable for complex control tasks.

[0042] By real-time monitoring and adjusting the tension, the tension of the knitted fabric is ensured to be constant during the winding and unwinding process, avoiding deformation or damage of the knitted fabric due to tension changes. Compared with the prior art, the present application improves the stability and quality of the knitted fabric winding and unwinding, reduces the scrap rate, and improves production efficiency.

[0043] The label mechanism 6 includes a first guide rail 12 arranged on the frame 4, a label unit 13 slidably arranged on the first guide rail 12, and a first servo motor 14 that drives the label unit 13 to move back and forth left and right. The label unit 13 includes a base 15 slidably arranged on the first guide rail 12, a label supply component 16 arranged on the base 15, and a marking component 17 arranged on the side of the label supply component 16. The label supply component 16 includes a first reel 18 for placing label paper, a label pressing roller 19, an identification seat 21, and a second reel 22 for reeling up the torn label paper. The label paper is unwound from the first reel 18 to the identification seat 21 and then reeled up from the second reel 22 to form an unwinding path. The label pressing roller 19 is used to compact and flatten the label paper on the unwinding path.

[0044] The first guide rail 12 in the label mechanism 6 can be made of high-strength aluminum alloy material to ensure that it will not deform during long-term use. The base 15 of the label unit 13 can be connected to the first guide rail 12 through a high-precision slide rail to achieve smooth sliding. The first reel 18 and the second reel 22 in the label supply component 16 can be automatically tensioned by a spring mechanism or a pneumatic device to ensure that the tension of the label paper is constant during the unwinding and rewinding process. The identification seat 21 can be equipped with a photoelectric sensor to detect the position of the label paper to ensure the accurate positioning of the label paper on the unwinding path. The label pressure roller 19 can be made of silicone material to provide sufficient pressing force while avoiding damage to the label paper. Through the left and right movement of the label unit 13 and the efficient operation of the label supply component 16, the high precision and high reliability of the marking process are ensured, the problems of low efficiency and large errors in the traditional manual marking method are solved, and the inspection quality and production efficiency of knitted fabrics are improved.

[0045] The marking component 17 includes a second guide rail 23 arranged on the base 15, a first slider 24 arranged on the second guide rail 23 for reciprocating sliding back and forth, a third guide rail 25 arranged on the first slider 24, a second slider 26 arranged on the third guide rail 25 for reciprocating sliding up and down, and a marking component 27 arranged on the second slider 26. The marking component 27 includes a marking head 28 and an air pump 29 for driving the marking head 28 to approach or move away from the knitted cloth. After the marking head 28 reciprocates through the second guide rail 23 and the third guide rail 25 to identify the seat 21, the marking head 28 absorbs the label on the label paper on the identification seat 21, and then the air pump 29 drives the marking head 28 that has absorbed the label to approach the defect point of the knitted cloth to stick the label on the defect point; the marking component 17 also includes a cloth pressing roller 31 arranged at the bottom of the base 15.

[0046] By setting up multiple sliding guides and sliders, it is ensured that the marking head 28 can move accurately in multiple directions. The marking component 27 drives the marking head 28 through the air pump 29 to absorb the label and stick it on the defective point. The cloth pressing roller 31 helps to fix the knitted cloth for accurate marking. Through the mutual cooperation of these technical features, accurate marking of knitted cloth defect points is achieved. By setting up multi-directional sliding guides and sliders, it is ensured that the marking head 28 can be flexibly moved to the specified position. The marking head 28 driven by the air pump 29 can accurately absorb and attach the label, and the cloth pressing roller 31 provides a stable working environment. These technical means jointly solve the problem of how to achieve accurate marking of knitted cloth defect points.

[0047] The surface of the cloth pressing roller 31 is provided with an elastic rubber layer, and the inside of the cloth pressing roller 31 is hollow and has a built-in heating device. When the marking head 28 is labeling, the cloth pressing roller 31 first heats and flattens the area near the defective point of the knitted cloth and waits for the marking head 28 to perform the marking operation.

[0048] By providing an elastic rubber layer and an internal hollow structure on the surface of the cloth pressing roller 31 and a built-in heating device, the function of heating and flattening the area near the defective point of the knitted cloth before the marking head 28 is labeled is realized. Compared with the prior art, the technical solution of the present application can effectively avoid damage to the knitted cloth during the marking process, ensure that the label can be firmly attached, improve the accuracy and stability of the marking, and significantly improve the detection and marking efficiency of the knitted cloth.

[0049] The shooting mechanism 5 includes a cloth inspection cover plate 32 arranged on the frame 4, and a plurality of line array cameras 33 installed on the inner side of the cloth inspection cover plate 32. The plurality of line array cameras 33 are arranged at intervals along the width direction of the knitted cloth, and the scanning lines of each line array camera 33 are connected to each other to cover the entire width of the knitted cloth. Each line array camera 33 is provided with a ring light source 34.

[0050] By arranging multiple linear array cameras 33 in intervals along the width direction of the knitted fabric, and connecting the scanning lines of each camera to each other, high-precision detection of the full width of the knitted fabric can be achieved. The setting of the annular light source 34 ensures the uniformity of the illumination, improves the image quality and detection accuracy. Compared with the prior art, the technical solution of the present application can effectively solve the problems of low efficiency, easy missed detection and false detection of traditional manual fabric inspection, realize the comprehensive coverage detection of knitted fabric, and improve the accuracy and reliability of detection.

[0051] The cloth inspection cover 32 includes a first plate 35, a second plate 36 integrally formed with the first plate 35, and two sets of side plates 37 arranged on both sides of the first plate 35 and the second plate 36, and the angle between the first plate 35 and the second plate 36 is 45-120°; the shooting mechanism 5 is arranged on the second plate 36, and the frame 4 also includes a first pressing roller 38 and a second pressing roller 39, and the second pressing roller 39 is installed obliquely above the first pressing roller 38. The knitted cloth passes through the first pressing roller 38 and the second pressing roller 39 in sequence. The first pressing roller 38 and the second pressing roller 39 press the knitted cloth to form an inclined guide surface 41 together, and the reference surface of the second plate 36 is parallel to the inclined guide surface 41.

[0052] The cloth inspection cover 32 includes a plurality of plates and a side plate 37. Through a specific angle design, the photographing mechanism 5 can be stably mounted on the second plate 36. The design and mounting position of the first pressing roller 38 and the second pressing roller 39 keep the knitted cloth stable during the photographing process, forming an inclined guide surface 41 parallel to the reference surface of the second plate 36, ensuring that the photographing mechanism 5 can accurately photograph the knitted cloth. This design solves the problem of keeping the knitted cloth stable and accurate during the photographing process, ensuring the reliability and accuracy of the photographed data.

[0053] The support frame 8 of the unwinding mechanism 2 and the winding mechanism 3 is provided with a fault warning device 42, which includes a vibration sensor 43 and an alarm 44. The vibration sensor 43 monitors the vibration of the cloth winding roller 9 in real time, and when abnormal vibration is detected, the alarm 44 is triggered to send an alarm signal, and the fault information is transmitted back to the control center, and the control center controls the unwinding mechanism 2 and the winding mechanism 3 to stop operating.

[0054] The vibration sensor 43 can be of various types, such as an acceleration sensor or a vibration velocity sensor. The alarm 44 can be an audible and visual alarm 44 or other forms of alarm devices. The vibration sensor 43 is mounted on the support frame 8 of the unwinding mechanism 2 and the rewinding mechanism 3, and can monitor the vibration of the cloth roller 9 in real time. When the vibration sensor 43 detects abnormal vibration, the alarm 44 immediately sends an alarm signal and transmits the fault information back to the control center. Based on the fault information, the control center quickly controls the unwinding mechanism 2 and the rewinding mechanism 3 to stop operating to avoid further equipment damage and production accidents. Furthermore, the control center can also record and analyze the fault information for maintenance and troubleshooting.

[0055] The cloth inspection device also includes a cloth pre-cleaning processing module 45, which includes a plurality of electrostatic adsorption rollers 46 arranged on a frame 4, and the electrostatic adsorption rollers 46 are arranged on a transmission path between the unwinding mechanism 2 and the shooting mechanism 5. The surface of the electrostatic adsorption rollers 46 is coated with a conductive polymer material, and fine particles remaining on the surface of the cloth are adsorbed through a high-voltage electrostatic field.

[0056] By setting up the cloth pre-cleaning processing module 45, the cleaning problem of the cloth before entering the shooting mechanism 5 can be effectively solved. Compared with the prior art, the pre-cleaning processing module of the present application can significantly reduce the residual particles on the cloth surface, reduce the detection error, and improve the detection accuracy. At the same time, by adopting the electrostatic adsorption technology, the fine particles on the cloth surface can be efficiently removed to ensure the cleanliness of the cloth before entering the shooting mechanism 5, thereby improving the working efficiency and detection accuracy of the entire cloth testing device.

[0057] The electrostatic adsorption roller 46 adopts a composite structure of a permanent magnet 47 and an electrode plate 48. The roller core has a built-in rare earth permanent magnet 47 to form a radial gradient magnetic field. The surface of the roller core is covered with the electrode plate 48. The electrode plate 48 is powered by a pulse power supply to generate an alternating electrostatic field.

[0058] By adopting the composite structure of the permanent magnet 47 and the electrode plate 48, the electrostatic adsorption roller 46 can not only improve the adsorption effect of fine particles on the surface of the knitted fabric, but also significantly enhance the stability and reliability of the adsorption process. Compared with the traditional electrostatic adsorption roller 46, this technical solution has higher adsorption efficiency and longer service life, can effectively solve the problem of fine particles being difficult to remove during the knitted fabric detection process, and improve the detection quality and production efficiency of the knitted fabric.

[0059] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. An intelligent cloth inspection device for automatic unwinding and rewinding of knitted cloth, characterized in that: The invention comprises a base (1), an unwinding mechanism (2) arranged on one side of the base (1), and a rewinding mechanism (3) arranged on the side of the base (1) away from the unwinding mechanism (2); the base (1) comprises a frame (4), a shooting mechanism (5) arranged above the frame (4), a labeling mechanism (6) arranged on the frame (4), and an encoder (7) arranged between the unwinding mechanism (2) and the rewinding mechanism (3) for detecting the moving position and speed of the knitted fabric, the shooting mechanism (5), the labeling mechanism (6), and the encoder (7) being electrically connected to an external control center, and the unwinding mechanism (2) unwinds the knitted fabric onto a fabric guide roller on the base (1). The encoder (7) detects the moving position and speed of the knitted fabric in real time and transmits the data to the control center. The control center dynamically adjusts the shooting frequency of the shooting mechanism (5) according to the speed data provided by the encoder (7). The shooting mechanism (5) shoots the knitted fabric unwound on the fabric guide roller. The photographed graphic data is transmitted back to the control center. The control center accurately marks the knitted fabric defect points in the graphic data in combination with the position and speed data provided by the encoder (7) and forms position data. The control center controls the labeling mechanism (6) to label the knitted fabric defect points based on the position data. The marked knitted fabric is reeled up via the reeling mechanism (3).

2. The knitted fabric automatic reeling and unreeling intelligent fabric inspection device according to claim 1 is characterized by: The unwinding mechanism (2) and the rewinding mechanism (3) both comprise a support frame (8), a cloth roll (9) rotatably arranged on the support frame (8), a driving member driving the cloth roll (9) to rotate, and a tension sensor (11) arranged on the support frame (8); the knitted fabric is placed on the cloth roll (9); the driving member drives the cloth roll (9) to rotate to drive the knitted fabric to move from the unwinding mechanism (2) to the rewinding mechanism (3); the tension sensor (11) is used to detect tension changes in real time during the unwinding or rewinding process; the tension sensor (11) feeds back the detected tension data to a control center; and the control center adjusts the rotation speed of the driving member based on the tension data to maintain constant tension.

3. The knitted fabric automatic winding and unwinding intelligent fabric inspection device according to claim 1 is characterized by: The label mechanism (6) comprises a first guide rail (12) arranged on a frame (4), a label unit (13) slidably arranged on the first guide rail (12), and a first servo motor (14) driving the label unit (13) to move back and forth left and right; the label unit (13) comprises a base (15) slidably arranged on the first guide rail (12), a label supply component (16) arranged on the base (15), and a marking component (17) arranged on the side of the label supply component (16); the label supply component (16) comprises a first reel (18) for placing label paper, a label pressing roller (19), an identification seat (21), and a second reel (22) for reeling up the torn label paper; the label paper is unrolled to the identification seat (21) via the first reel (18) and then reeled up via the second reel (22) to form a reeling and unwinding path; the label pressing roller (19) is used to compact and flatten the label paper on the unwinding path.

4. The knitted fabric automatic winding and unwinding intelligent fabric inspection device according to claim 3 is characterized by: The marking component (17) comprises a second guide rail (23) arranged on the base (15), a first slider (24) arranged on the second guide rail (23) for reciprocating sliding, a third guide rail (25) arranged on the first slider (24), a second slider (26) arranged on the third guide rail (25) for reciprocating sliding, and a marking component (27) arranged on the second slider (26), wherein the marking component (27) comprises a marking head (28), a driving mechanism for driving the marking head ( The marking head (28) moves back and forth via the second guide rail (23) and the third guide rail (25) to the identification seat (21). After the marking head (28) absorbs the label on the label paper on the identification seat (21), the air pump (29) drives the marking head (28) that has absorbed the label to approach the defect point of the knitted cloth to attach the label to the defect point. The marking component (17) also includes a cloth pressing roller (31) arranged at the bottom of the base (15).

5. The knitted fabric automatic reeling and unreeling intelligent fabric inspection device according to claim 4 is characterized by: The surface of the cloth pressing roller (31) is provided with an elastic rubber layer, and the interior of the cloth pressing roller (31) is hollow and has a built-in heating device. When the marking head (28) is labeling, the cloth pressing roller (31) first heats and flattens the area near the defect point of the knitted cloth and waits for the marking head (28) to perform the marking operation.

6. The knitted fabric automatic reeling and unreeling intelligent fabric inspection device according to claim 1 is characterized by: The photographing mechanism (5) comprises a cloth inspection cover plate (32) arranged on a frame (4), and a plurality of line array cameras (33) installed inside the cloth inspection cover plate (32). The plurality of line array cameras (33) are arranged at intervals along the width direction of the knitted cloth, and the scanning lines of each line array camera (33) are connected to each other to cover the entire width of the knitted cloth. Each line array camera (33) is provided with an annular light source (34).

7. The knitted fabric automatic reeling and unreeling intelligent fabric inspection device according to claim 6 is characterized by: The cloth inspection cover plate (32) comprises a first plate member (35), a second plate member (36) integrally formed with the first plate member (35), and two groups of side plates (37) arranged on both sides of the first plate member (35) and the second plate member (36), wherein the angle between the first plate member (35) and the second plate member (36) is 45-120°; the photographing mechanism (5) is arranged on the second plate member (36), and the frame (4) further comprises a first pressing roller (38) and a second pressing roller (39), wherein the second pressing roller (39) is installed obliquely above the first pressing roller (38), and the knitted cloth passes through the first pressing roller (38) and the second pressing roller (39) in sequence, and the first pressing roller (38) and the second pressing roller (39) press the knitted cloth to form an inclined guide surface (41), and the reference surface of the second plate member (36) is parallel to the inclined guide surface (41).

8. The knitted fabric automatic winding and unwinding intelligent fabric inspection device according to claim 1 is characterized by: A fault warning device (42) is provided on the support frame (8) of the unwinding mechanism (2) and the rewinding mechanism (3). The fault warning device (42) comprises a vibration sensor (43) and an alarm (44). The vibration sensor (43) monitors the vibration of the cloth rolling roller (9) in real time. When abnormal vibration is detected, the alarm (44) is triggered to send out an alarm signal and simultaneously transmit the fault information back to the control center. The control center controls the unwinding mechanism (2) and the rewinding mechanism (3) to stop operating.

9. The knitted fabric automatic winding and unwinding intelligent fabric inspection device according to claim 1, characterized in that: The cloth inspection device further comprises a cloth pre-cleaning processing module (45), the cloth pre-cleaning processing module (45) comprising a plurality of groups of electrostatic adsorption rollers (46) arranged on a frame (4), the electrostatic adsorption rollers (46) being arranged on a transmission path between the unwinding mechanism (2) and the photographing mechanism (5), the electrostatic adsorption rollers (46) adsorbing fine particles remaining on the surface of the cloth.

10. The knitted fabric automatic winding and unwinding intelligent fabric inspection device according to claim 9, characterized in that: The electrostatic adsorption roller (46) adopts a composite structure of a permanent magnet (47) and an electrode plate (48); the roller core has a built-in rare earth permanent magnet (47) to form a radial gradient magnetic field; the surface of the roller core is coated with the electrode plate (48); the electrode plate (48) is powered by a pulse power supply to generate an alternating electrostatic field.

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