阅读说明：本技术 一种自除摩尔纹的自动验布系统及方法 (Automatic cloth inspecting system and method capable of automatically removing Moire patterns ) 是由 彭晓峰 孟佳威 徐真诚 谢恺 陈小勇 徐佩雯 王连润 刘俊宇 刘枫 于 2019-11-08 设计创作，主要内容包括：本发明提供一种自除摩尔纹的自动验布系统及方法,该自除摩尔纹的自动验布系统包括放料辊以及收卷辊,布匹经放料辊放料并由收卷辊收料,其特征在于,还包括：摄像头,与布匹表面呈垂直设置,用于布匹成像拍摄；补光光源,设置在摄像头的一侧,用于照亮被拍摄布匹；执行辊机构,设置在放料辊与收卷辊之间且位于摄像头的上游位置,用于对布匹施加张力；验布控制系统,与摄像头以及执行辊机构分别连接,当布匹成像图像出现瑕疵时,控制执行辊机构动作。本发明通过执行辊机构动作实现了在验布过程中自动消除或减弱摩尔纹,检验出真正的织物瑕疵。(The invention provides an automatic cloth inspecting system and method for self-removing Moire patterns, wherein the automatic cloth inspecting system for self-removing Moire patterns comprises an emptying roller and a winding roller, cloth is emptied by the emptying roller and received by the winding roller, and the automatic cloth inspecting system is characterized by further comprising: the camera is perpendicular to the surface of the cloth and is used for imaging and shooting the cloth; the light supplementing light source is arranged on one side of the camera and used for illuminating the shot cloth; the executing roller mechanism is arranged between the discharging roller and the winding roller, is positioned at the upstream position of the camera and is used for applying tension to the cloth; and the cloth inspecting control system is respectively connected with the camera and the executing roller mechanism, and controls the executing roller mechanism to act when the image of the cloth has flaws. The invention realizes the automatic elimination or weakening of the Moire patterns in the cloth inspecting process through the action of the executing roller mechanism, and the real fabric flaw is inspected.)

1. The utility model provides a from removing automatic perching system of mole line, includes blowing roller and wind-up roll, cloth warp blowing roller blowing and by the wind-up roll receives the material, its characterized in that still includes:

the camera is perpendicular to the surface of the cloth and is used for imaging and shooting the cloth;

the light supplementing light source is arranged on one side of the camera and used for illuminating the shot cloth;

the executing roller mechanism is arranged between the discharging roller and the winding roller, is positioned at the upstream position of the camera and is used for applying tension to the cloth;

and the cloth inspecting control system is respectively connected with the camera and the actuating roller mechanism, and controls the actuating roller mechanism to act when a flaw appears in a cloth imaging image.

2. The self-moir é removing automatic perching system of claim 1, wherein:

wherein the number of the cameras is a plurality,

the plurality of cameras are arranged in a straight line at equal intervals along the width direction of the cloth,

the total image area of the plurality of cameras covers the width range of the cloth.

3. The automatic perching system of claim 2, wherein:

wherein the imaging areas of adjacent cameras have partial overlap,

the imaging area of the camera positioned on the outermost side exceeds the edge of the cloth.

4. The self-moir é removing automatic perching system of claim 1, wherein:

wherein the execution roller mechanism comprises a limit support platform, the limit support platform is provided with a guide ring hole, a lifting shaft is arranged in the guide ring hole, a roller connecting component is fixed at the upper end part of the lifting shaft, an execution roller is connected at the upper end part of the lifting shaft through the roller connecting component,

after the lifting shaft is driven, the lifting shaft rises in the guide ring hole to drive the execution roller to rise along with the guide ring hole, so that the cloth passing through the execution roller is tensioned.

5. The self-moir é removing automatic perching system of claim 1, wherein:

wherein the executing roller mechanism comprises a rotating shaft, a roller mounting frame is connected with the rotating shaft, a first executing roller and a second executing roller are symmetrically arranged on the roller mounting frame relative to the rotating shaft,

after the rotating shaft is driven, the roller mounting frame is driven to rotate along with the rotating shaft, so that the cloth passing through the first execution roller and the second execution roller is tensioned.

6. The automatic perching system of the self-democration moir é, as defined in claim 4 or 5, wherein:

wherein the executing roller mechanism further comprises an electric driving device for providing driving force.

7. The self-moir é removing automatic perching system of claim 1, wherein:

wherein, the perching control system has: the image processing system comprises an image receiving module, an image flaw analysis module, a signal generation module, an electric actuator, an image comparison and judgment module and a recording and storage module;

the image receiving module is used for receiving the imaging image transmitted by the camera;

the image defect analysis module is used for analyzing whether defects exist in the cloth imaging image;

the signal generation module is used for generating a corresponding execution control signal when the image defect analysis module analyzes that a defect exists in the cloth imaging image;

the electric actuator controls the actuating roller mechanism to act according to the actuating control signal;

the image comparison and judgment module is used for comparing the cloth imaging images before and after the action of the executing roller mechanism and judging whether the flaws in the cloth imaging images are moire fringes or not;

the record storage module is used for storing the related information of the cloth and recording the imaging image data of the cloth received by the image receiving module, the flaw analysis data obtained by the image flaw analysis module and the Moire pattern judgment data obtained by the image comparison judgment module.

8. The self-moir é removing automatic perching system of claim 7, wherein:

wherein, the cloth inspecting control system is also provided with an electronic meter counter;

the electronic length counter is arranged at the upstream of the winding roller and used for counting the length of the cloth passing through the winding roller;

and the recording and storing module correspondingly records the cloth imaging image data, the flaw analysis data and the Moire pattern judgment data according to the cloth measuring length.

9. The self-moir é removing automatic perching system of claim 7, wherein:

the cloth inspecting control system is also provided with a photoelectric proximity switch and a power supply control module;

the photoelectric proximity switch is arranged at the upstream of the winding roller and used for sensing whether cloth still passes through the photoelectric proximity switch;

the power control module is used for controlling the main power to be turned off when the photoelectric proximity switch senses that no cloth passes through.

10. An automatic cloth inspecting method for self-removing Moire patterns is characterized by comprising the following steps:

firstly, imaging and shooting the cloth in the transmission process to obtain a cloth imaging image;

analyzing whether flaws exist in the cloth imaging image or not;

step three, when the defects exist in the cloth imaging image, controlling the action of the execution roller mechanism to apply tension to the cloth;

comparing the image images of the cloth before and after the tension is applied, and judging whether the flaws are moire fringes or not;

and step five, recording the cloth imaging image data obtained in the step one, the flaw analysis data obtained in the step two and the Moire judgment data obtained in the step four in real time.

Technical Field

The invention relates to the technical field of fabric image inspection, in particular to an automatic cloth inspecting system and method capable of automatically removing Moire patterns.

Background

The weaving and dyeing industry needs to carry out flaw detection on produced fabrics so as to control the quality of the produced fabrics. Because the inspection by adopting the intelligent identification equipment has higher accuracy and faster efficiency than the manual inspection, the inspection by adopting the intelligent identification equipment is mostly adopted at present. The intelligent cloth inspecting process is to image the fabric and then judge whether the fabric has defects or not through detecting the imaged image. However, the mechanical vibration of the cloth rolling machine inevitably brings relative vibration between the fabric and the camera, so that moire patterns similar to water surface ripples are generated in an imaging image, and the moire patterns are strengthened or disappear according to the strength of the shake of the fabric. The moire fringes existing in the image are easy to be misjudged into flaws after being calculated by an intelligent recognition algorithm, so that false flaws caused by the moire fringes are mixed with real flaws existing in the fabric, and the detection result is inaccurate.

At present, for moire images caused by mechanical vibration, there are several solutions as follows: (1) and adding a filtering processing algorithm at a program end to filter the Moire patterns. Although the method can reduce the influence caused by the moire to a certain extent, the true flaws of certain types of fabrics in the image can be filtered out due to the defects of the algorithm, so that the judgment is inaccurate. (2) a detection device is introduced at a position where vibration may occur to detect the occurrence of vibration. The disadvantages of this approach are: when the detection position and the picture shooting position do not overlap, the situation that the detection is inconsistent with the actual detection occurs; the method is influenced by the precision of the detection device, and has the problem of precision error; the installed detection device can generate deviation along with mechanical vibration, so that deviation is brought; this approach does not correct for the effects due to vibration. (3) And adjusting the tension of the fabric winding. The practical effect of this mode is relatively poor, dynamics and vibration amplitude when can only adjusting the rolling can not solve relative vibration and resonance between fabric and the camera.

Disclosure of Invention

The present invention is made to solve the above problems, and an object of the present invention is to provide an automatic cloth inspecting system and method for self-removing moire.

The invention provides an automatic cloth inspecting system capable of automatically removing Moire patterns, which comprises a discharging roller and a winding roller, wherein cloth is discharged through the discharging roller and is collected by the winding roller, and the automatic cloth inspecting system is characterized by further comprising: the camera is perpendicular to the surface of the cloth and is used for imaging and shooting the cloth; the light supplementing light source is arranged on one side of the camera and used for illuminating the shot cloth; the executing roller mechanism is arranged between the discharging roller and the winding roller, is positioned at the upstream position of the camera and is used for applying tension to the cloth; and the cloth inspecting control system is respectively connected with the camera and the executing roller mechanism, and controls the executing roller mechanism to act when the image of the cloth has flaws.

In the automatic perching system for self-removing Moire patterns provided by the invention, the automatic perching system also has the following characteristics: the quantity of the cameras is a plurality of, the cameras are arranged in a straight line equidistant mode along the width direction of the cloth, and the total image area of the cameras covers the width range of the cloth.

In the automatic perching system for self-removing Moire patterns provided by the invention, the automatic perching system also has the following characteristics: the imaging areas of the adjacent cameras are partially overlapped, and the imaging area of the outermost camera exceeds the edge of the cloth.

In the automatic perching system for self-removing Moire patterns provided by the invention, the automatic perching system also has the following characteristics: wherein, the executive roller mechanism contains spacing supporting platform, and spacing supporting platform has the guide ring hole, is provided with the lift axle in the guide ring hole, and the upper end of lift axle is fixed with roller connecting element, and an executive roller passes through roller connecting element and connects the upper end at the lift axle, and the lift axle is driven the back, rises in the guide ring hole, drives executive roller and rises thereupon for cloth via executive roller receives tension.

In the automatic perching system for self-removing Moire patterns provided by the invention, the automatic perching system also has the following characteristics: the actuating roller mechanism comprises a rotating shaft, a roller mounting frame is connected with the rotating shaft, a first actuating roller and a second actuating roller are symmetrically arranged on the roller mounting frame relative to the rotating shaft, and the rotating shaft is driven to drive the roller mounting frame to rotate along with the first actuating roller and the second actuating roller, so that cloth passing through the first actuating roller and the second actuating roller is tensioned.

In the automatic perching system for self-removing Moire patterns provided by the invention, the automatic perching system also has the following characteristics: wherein, the actuating roller mechanism also comprises an electric driving device for providing driving force.

In the automatic perching system for self-removing Moire patterns provided by the invention, the automatic perching system also has the following characteristics: wherein, perching control system has: the image processing system comprises an image receiving module, an image flaw analysis module, a signal generation module, an electric actuator, an image comparison and judgment module and a recording and storage module; the image receiving module is used for receiving an imaging image transmitted by the camera; the image defect analysis module is used for analyzing whether defects exist in the cloth imaging image; the signal generation module is used for generating a corresponding execution control signal when the image defect analysis module analyzes that the defects exist in the cloth imaging image; the electric actuator controls the action of the execution roller mechanism according to the execution control signal; the image comparison and judgment module is used for comparing the cloth imaging images before and after the action of the executing roller mechanism and judging whether the flaws in the cloth imaging images are moire fringes or not; the recording and storing module is used for storing the related information of the cloth and recording the imaging image data of the cloth received by the image receiving module, the flaw analysis data obtained by the image flaw analysis module and the Moire pattern judgment data obtained by the image comparison and judgment module.

In the automatic perching system for self-removing Moire patterns provided by the invention, the automatic perching system also has the following characteristics: wherein, the cloth inspecting control system is also provided with an electronic meter counter; the electronic meter counter is arranged at the upstream of the winding roller and used for counting the length of the cloth passing through the winding roller; and the recording and storing module correspondingly records the cloth imaging image data, the flaw analysis data and the Moire pattern judgment data according to the cloth measuring length.

In the automatic perching system for self-removing Moire patterns provided by the invention, the automatic perching system also has the following characteristics: the cloth inspecting control system is also provided with a photoelectric proximity switch and a power supply control module; the photoelectric proximity switch is arranged at the upstream of the winding roller and used for sensing whether the cloth still passes through; the power control module is used for controlling the main power to be turned off when the photoelectric proximity switch senses that no cloth passes through.

The invention also provides an automatic cloth inspecting method for removing Moire patterns, which is characterized by comprising the following steps: firstly, imaging and shooting the cloth in the transmission process to obtain a cloth imaging image; analyzing whether flaws exist in the cloth imaging image or not; step three, when the defects exist in the cloth imaging image, controlling the action of the execution roller mechanism to apply tension to the cloth; comparing the image images of the cloth before and after the tension is applied, and judging whether the flaws are moire fringes or not; and step five, recording the cloth imaging image data obtained in the step one, the flaw analysis data obtained in the step two and the Moire judgment data obtained in the step four in real time.

The invention has the following functions and effects:

according to the automatic cloth inspecting system capable of automatically removing the moire fringes, the actuating roller mechanism and the cloth inspecting control system are arranged, so that a cloth imaging image obtained by shooting through the camera can be automatically analyzed and judged by the cloth inspecting control system, a corresponding execution control signal is generated when a flaw appears in the cloth imaging image, the electric actuator controls the actuating roller mechanism to act according to the control execution signal so as to apply tension to the cloth, and therefore the moire fringes are eliminated or weakened (the moire fringes are changed), and the automatic cloth inspecting system can determine which moire fringes are real flaws of the cloth by comparing and judging the cloth imaging images before and after the actuating roller mechanism acts. The automatic cloth inspecting system and method for automatically removing Moire patterns are adopted, so that cloth inspecting results are more accurate.

In addition, each component in the automatic cloth inspecting system for automatically removing Moire patterns is scientific and reasonable in structural arrangement and easy to install.

In addition, in the automatic cloth inspecting system for self-removing Moire patterns, the arrangement mode of the plurality of cameras is reasonable, and the condition that a shooting area is not missed in the width direction of the cloth is ensured.

In addition, in the automatic cloth inspecting system capable of automatically removing Moire patterns, the cloth is arranged at a specific angle, and the camera and the light supplementing light source are arranged at specific positions and are matched with each other to ensure that the shooting effect is better.

In addition, the automatic cloth inspecting system capable of automatically removing the moire fringes is provided with the meter counter, and the cloth imaging image data, the flaw analysis data and the moire judgment data are correspondingly recorded by the recording and storing module in the cloth inspecting control system according to the cloth measuring length, so that the data are correspondingly recorded according to the positions of the data on the cloth according to the corresponding characteristics, and subsequent checking and analysis are facilitated.

In addition, the automatic cloth inspecting system for automatically removing Moire patterns has high automation degree and is more intelligent, scientific and reasonable automatic cloth inspection can be realized, and the system is provided with the photoelectric proximity switch and the power supply control module, so that the power supply can be automatically turned off after the cloth inspection is finished.

Drawings

FIG. 1 is a schematic diagram showing the overall structure of an automatic perching system for self-removing Moire in example 1 of the present invention;

fig. 2 is a schematic view of the arrangement of a camera in embodiment 1 of the present invention;

fig. 3a is a schematic view of imaging regions of adjacent cameras in embodiment 1 of the present invention;

FIG. 3b is a schematic illustration of the imaging area of an unsatisfactory neighboring camera;

FIG. 4a is a schematic structural view of an actuator roller mechanism in embodiment 1 of the present invention (the actuator roller is not raised);

FIG. 4b is a schematic view showing the construction of an actuator roller mechanism (actuator roller-up state) in embodiment 1 of the present invention;

FIG. 5 is a schematic view (in plan view) of the connection of an execution roller and a roller connection member in embodiment 1 of the present invention;

fig. 6 is a block diagram of a cloth inspecting control system of an executing roller mechanism in embodiment 1 of the invention;

FIG. 7a is a schematic structural view of an actuator roller mechanism in embodiment 2 of the present invention (a roller mount is not rotated);

fig. 7b is a schematic structural view of the actuator roller mechanism (roller mount rotated state) in embodiment 2 of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement objects and effects of the present invention easy to understand, the following embodiments are provided to specifically describe the automatic perching system and method for removing moire fringes of the present invention with reference to the accompanying drawings.

< example 1>

The present embodiment provides a self-moire-removing automatic perching system 100, which comprises: the cloth inspection device comprises a blowing roller 1, a transition roller 2, a winding roller 3, cloth 4, a camera 5, a light supplementing light source 6, an execution roller mechanism 7 and a cloth inspection control system 8.

As shown in fig. 1, a cloth 4 to be inspected is discharged through a discharging roller 1 and received by a winding roller 3. Camera 5 and light filling light source 6 all set up the back at cloth 4, and camera 5 is used for the cloth formation of image to shoot, and light filling light source 6 is used for illuminating the cloth of being shot. The camera 5 adopts a high-speed camera, continuously shoots cloth imaging images and transmits each frame of cloth imaging images. The included angle (the angle r shown in figure 1) formed by the imaging section of the cloth 4 and the horizontal plane is 45-60 degrees. Camera 5, light filling light source 6 all set up at the cloth back, and camera 5 is perpendicular setting with cloth 4, and light filling light source 6 sets up in the vicinity of camera, and light filling light source 6's emergent ray is perpendicular setting with cloth. The light supplement light source 6 is a cold light source such as an LED lamp or a fluorescent lamp. Cloth 4, camera 5 and the special setting like this of light filling light source 6 for camera 5 shoots formation of image effectually.

The transition roller 2 is a driven roller, is arranged at the upstream of the camera 5 and is positioned at the downstream of the executing roller mechanism 7, and is used for providing certain support for the cloth and ensuring the requirement of the included angle formed between the imaging section of the cloth 4 and the horizontal plane.

The number of the cameras 5 is multiple, and the multiple cameras are arranged in a straight line at equal intervals along the width direction of the cloth 4, as shown in fig. 2, fig. 2 illustrates the situation that 4 cameras are arranged, but not limited to this, the number of the cameras can be set according to the actual situation. The total image area of the plurality of cameras 5 covers the width range of the cloth, and the image areas of the adjacent cameras (51 is the image area of the camera as shown in fig. 3 a) are arranged to have partial overlap (52 is the overlap portion as shown in fig. 3 a), and the image area of the outermost camera exceeds the edge of the cloth. This ensures that the cloth 4 is captured in the width direction of the imaging area without omission, and the overlapping portions of the images do not affect the subsequent defect analysis. If the imaging area 51' of the adjacent camera is set to the situation as shown in fig. 3b, there will be a missing part, and such a setting is not acceptable.

The execution roller mechanism 7 is arranged between the discharging roller 1 and the winding roller 3 and is located at the upstream position of the camera, and the execution roller mechanism 7 is used for applying tension to the cloth. As shown in fig. 4a and 5, the actuator roller mechanism 7 in the present embodiment includes: a limit support platform 71, a lifting shaft 72, a roller connecting member 73, an execution roller 74, and a cylinder (not shown) for driving the lifting shaft to ascend or descend.

The restraint support platform 71 has a guide ring hole 711. The lower end of the lifting shaft 72 is connected with the cylinder, the lifting shaft 72 passes through the guide ring hole 711 on the limiting support platform 71, and the upper end of the lifting shaft 72 is fixedly connected with the roller connecting member 73. The number of the limiting supporting platforms 71, the lifting shafts 72 and the roller connecting members 73 is two, and the limiting supporting platforms 71, the lifting shafts 72 and the roller connecting members 73 are symmetrically arranged on the outer sides of two ends of the execution roller 74. The roller connecting member 73 is formed with a circular hole, and a rotating shaft 741 of the actuator roller 74 can be mounted in cooperation with the circular hole of the roller connecting member 73 through a bearing, so that the actuator roller 74 and the roller connecting member 73 can be rotatably connected. The cylinder drives the lifting shaft 72 to ascend or descend in the guide ring hole 711, and the roller connecting member 73 is driven to ascend or descend, so that the actuating roller 74 is driven to ascend or descend. Fig. 4b illustrates the ascending state of the actuating roller, and the ascending/descending shaft 72 is driven to ascend in the guiding ring hole 711, and then the actuating roller 74 is driven to ascend, so that the cloth 4 is lifted upwards, and the cloth passing through the actuating roller 74 is tensioned, and the molar pattern is changed after the tension (if the cloth has flaws, the frictional pattern is not changed due to the tension). In the present embodiment, the actuator roller 74 is a driven roller, and the rotation thereof about the axis of the roller itself is passive. However, the present invention is not limited to this, and in other embodiments, the actuating roller 74 and the roller connecting member 73 may be configured as a single non-rotatable structure, and the roller supports the cloth by only the arc surface to provide tension to the cloth.

As shown in fig. 1 and 6, the perching control system 8 includes: an analysis computing center system (81 as shown in fig. 1), an electric actuator 804, an electronic meter 807, and an electro-optical proximity switch 808. The analysis and calculation center system can adopt equipment with analysis and calculation capabilities, such as a PLC (programmable logic controller) or an upper computer. The electric actuator 804, the electronic length counter 807 and the photoelectric proximity switch 808 are all in communication connection with the analysis and calculation center system, and the camera 5 and the execution roller mechanism 7 are also in communication connection with the analysis and calculation center system. The analysis and calculation center system comprises an image receiving module 801, an image defect analysis module 802, a signal generation module 803, an image comparison and judgment module 805, a record storage module 806 and a power control module 809.

The image receiving module 801 is configured to receive a cloth imaging image transmitted by the camera 5.

The image defect analysis module 802 invokes existing fabric image analysis algorithms to analyze whether a defect exists (prior art fabric image analysis algorithms can already perform defect analysis, but cannot determine whether the defect is a "false defect" caused by a moire pattern or a real defect of the fabric itself).

The signal generating module 803 is configured to generate a corresponding execution control signal when the image defect analyzing module 802 analyzes that a defect exists in the cloth imaged image.

The electric actuator 804 controls the operation of the actuator roller mechanism 7 in accordance with the actuator control signal so that the cloth passing through the actuator roller 74 is subjected to tension, thereby changing the moire pattern.

The image comparison and determination module 805 is configured to compare whether a defect in an image of the cloth before and after the operation of the execution roller mechanism 7 changes, if the defect changes, it indicates that the defect is a "false defect" caused by moire, if the defect does not change, it indicates that the defect is a real defect in the cloth itself, and after the comparison, it may determine whether the defect in the image of the cloth is moire.

As shown in fig. 1, an electronic meter 807 is provided upstream of the take-up roll 3 for metering the length of the passing web.

The record storage module 806 is used for storing the related information of the cloth, such as the type, model, color, total length of the cloth, etc. of the cloth input by the user; and is used for recording the cloth imaging image data received by the image receiving module 801, the flaw analysis data obtained by the image flaw analysis module 802, and the moire judgment data obtained by the image comparison judgment module 803. The recording and storing module 806 records the image data of the cloth, the defect analysis data and the moire judging data according to the cloth measuring length of the electronic length counter 807.

As shown in fig. 1, an electro-optical proximity switch 808 is upstream of the take-up roll 3 for sensing whether there is still a web passing. The automatic cloth inspecting system for automatically removing Moire patterns adopts an electric automation structure for each driving structure, and a main power switch in the system can be manually turned off or can be automatically turned off under the control of the power control module 809. When the photoelectric proximity switch 808 senses that no more cloth passes through, the power control module 809 controls the main power to be turned off.

< example 2>

In the automatic cloth inspecting system for self-removing moire patterns in the embodiment, the same structures as those in the embodiment 1 are provided with the same reference numerals, and the corresponding description is omitted.

As shown in fig. 7a, the present embodiment is different from embodiment 1 in that: in the automatic perching system of self-removing moire in the present embodiment, the execution roller mechanism 7' includes: a rotating shaft 75, a roller mounting bracket 76, a first actuating roller 77, a second actuating roller 78, and a central motor (not shown) for driving the rotating shaft to rotate.

The roller mounting bracket 76 is connected with a rotating shaft 75, and a first executing roller 77 and a second executing roller 78 are symmetrically arranged on the roller mounting bracket 76 relative to the rotating shaft 75. After the rotating shaft 75 is driven by the central motor, the roller mounting bracket 76 is driven to rotate along with the rotating shaft, so that the cloth passing through the first execution roller 77 and the second execution roller 78 is tensioned, and the Moire pattern is changed after the cloth is tensioned (if the cloth has defects, the Moire pattern cannot be changed due to the stress). In the present embodiment, the first and second actuator rollers 77 and 78 are driven rollers, and the rotation of the rollers around their axes is passive. However, the present invention is not limited thereto, and in other embodiments, the first executing roller 77 and the second executing roller 78 are integrated with the roller mounting bracket 76 to form a non-rotatable structure, and the two rollers only support the cloth by the arc surface to provide tension for the cloth.

< example 3>

The embodiment provides an automatic perching method for self-removing moire patterns, which is performed by adopting the automatic perching system for self-removing moire patterns of the embodiment 1 or the embodiment 2, and comprises the following steps:

step one, imaging shooting is carried out on the cloth in the conveying process, and an imaging image of the cloth is obtained.

And step two, analyzing whether the defects exist in the cloth imaging image.

And step three, when the defects exist in the cloth imaging image, controlling the action of the executing roller mechanism to apply tension to the cloth.

And step four, comparing the cloth imaging images before and after tension application, and judging whether the flaws are moire fringes.

And step five, recording the cloth imaging image data obtained in the step one, the flaw analysis data obtained in the step two and the Moire judgment data obtained in the step four in real time.

In the cloth inspecting method for self-removing Moire patterns, the cloth conveying process is conveyed at a relatively slow speed, and the shooting imaging process is carried out at a high speed, so that the central position of an imaging image obtained by shooting before the action of the roller executing mechanism is ensured, the position of the cloth still appears in the imaging image obtained by shooting after the action of the roller executing mechanism, and if a real flaw appears, the imaging image obtained by shooting by the camera can be shot before and after the action of the roller executing mechanism, so that the real flaw is prevented from being missed for inspection.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.