Microscopic visual detection method and detection equipment for demolding cloth for composite material

Abstract

The invention discloses a microscopic visual detection method and detection equipment for demolding cloth for a composite material, and relates to the technical field of microscopic visual detection of demolding cloth, the detection equipment comprises a back rolling module, a microscope acquisition module and a picture processing module, the rewinding module comprises a cloth unwinding inflatable shaft, a cloth winding inflatable shaft, a magnetic powder brake, a deviation correction control device, a motor driving device, a meter counting control device, a tension control device, a speed adjusting device and a plurality of cloth guide rollers, the microscope acquisition module comprises a microscope and a light source, and the picture processing module comprises a display, an industrial personal computer and an encoder. Demoulding cloth in a fixed interval under a microscope is detected through detection software, and when defects are detected, the industrial personal computer stores related defect pictures in real time, alarms and lights up, and informs operators of defects through a display, so that the problem that the overlock situation of the demoulding cloth cannot be effectively judged, and the detection accuracy is high is solved. And improvement measures made for the overlock state of the demolding cloth cannot be reliably verified.

Description

Technical Field

[0001] The invention relates to the technical field of microscopic visual detection of release cloths, in particular to a microscopic visual detection method and detection equipment for release cloths for composite materials. Background Art

[0002] Release cloth is an industrial textile fabric that is heat-cut into specified sizes and is an important auxiliary material for composite material curing and molding. Release cloth is mainly used on the surface of composite parts to protect them and is easy to tear off and demould. During the process of tearing the release cloth off the surface of the part, there are certain requirements for the heat-cut edge fastness of the release cloth. The yarn on the edge of the release cloth is easy to remain on the surface of the part, affecting the quality of the part and increasing the damage. Therefore, it is necessary to use equipment and methods that can detect the microscopic state of the heat-cut edge of the release cloth and the microscopic state of the edge-locking part of the release cloth.

[0003] When the prior art is used, it is impossible to effectively judge the edge locking condition of the release cloth, and the improvement measures for the edge locking condition of the release cloth cannot be reliably verified. Summary of the invention

[0004] The object of the present invention is to provide a microscopic visual inspection method and inspection equipment for a release cloth for composite materials to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A microscopic visual inspection method and inspection equipment for a release cloth for composite materials, comprising a rewinding module, a microscope acquisition module and an image processing module, wherein the rewinding module comprises a cloth-releasing air shaft, a cloth-collecting air shaft, a magnetic powder brake, a deviation correction control device, a motor drive device, a meter control device, a tension control device, a speed adjustment device and a plurality of cloth guide rollers, the microscope acquisition module comprises a microscope and a light source, and the image processing module comprises a display, an industrial computer and an encoder.

[0006] Preferably, a stripping cloth is slidably connected to the surface of the cloth guide roller, and two ends of the stripping cloth are respectively fixedly connected to the surfaces of the cloth placing air shaft and the cloth collecting air shaft.

[0007] Preferably, the microscope is located above the top of the release cloth, and the light source is located above the bottom of the release cloth.

[0008] Preferably, the microscope is electrically connected to a display, an industrial computer and an encoder.

[0009] Preferably, the rewinding module controls the unwinding tension through magnetic powder, and the two ends of the stripping cloth are conveniently fixed on the cloth-releasing air shaft and the cloth-collecting air shaft. By controlling the edge correction device, the speed regulation device and the tension control device, the edge of the stripping cloth can run smoothly at a certain speed (slow speed) in a fixed detection range, and then the optical microscope piece with the required magnification is selected for the microscope, and the microscope height is adjusted to control the focus.

[0010] Preferably, when the demoulding cloth is operating normally on the rewinding machine, the detection software on the industrial computer is started and the software begins detection.

[0011] Preferably, the microscope is connected to an encoder, and by receiving pulse signals from the rotation of the encoder, images are captured and fed back to the software for algorithm detection.

[0012] Preferably, when the software detects a defect, the industrial computer saves the associated defect image in real time for review at any time.

[0013] Preferably, an alarm light is turned on at the same time and the operator is informed of the defect through a display.

[0014] Preferably, when the software does not detect a defect, the industrial computer saves the associated images in real time for review at any time.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When the present invention is in use, after the demoulding cloth is in normal operation on the rewinding machine, the detection software on the industrial computer is started, the software starts detection, the microscope is connected to the encoder, and by receiving the pulse signal of the encoder's rotation, image acquisition is performed and the image is fed back to the software for algorithm detection. When the software detects a defect, the industrial computer saves the associated defect image in real time for review at any time, and at the same time, an alarm light is turned on and the operator is informed of the defect through the display. When the software does not detect the defect, the industrial computer saves the associated image in real time for review at any time, so as to solve the problem that the edge locking condition of the demoulding cloth cannot be effectively judged and the improvement measures for the edge locking condition of the demoulding cloth cannot be reliably verified. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a structural diagram of the picture processing module of the present invention; Figure 3 It is a schematic diagram of the process of the present invention.

[0017] In the figure: 1. cloth-releasing air shaft; 2. cloth-collecting air shaft; 3. microscope; 4. cloth-guide roller; 5. demoulding cloth; 6. display. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-3 The present invention provides a technical solution: a microscopic visual detection method and detection equipment for a stripping cloth for composite materials, comprising a rewinding module, a microscope 3 acquisition module and a picture processing module, the rewinding module comprising a cloth-releasing air shaft 1, a cloth-collecting air shaft 2, a magnetic powder brake, a deviation correction control device, a motor drive device, a meter control device, a tension control device, a speed adjustment device, and a plurality of cloth guide rollers 4, the microscope 3 acquisition module comprising a microscope 3 and a light source, the picture processing module comprising a display 6, an industrial computer and an encoder, a stripping cloth 5 is slidably connected to the surface of the cloth-releasing air shaft 1 and the cloth-collecting air shaft 2, respectively, the microscope 3 is located above the top of the stripping cloth 5, the light source is located above the bottom of the stripping cloth 5, the microscope 3 is electrically connected to the display 6, the industrial computer and the encoder, and through the arrangement and connection between the above structures, the microscopic state of the edge of the stripping cloth can be conveniently detected.

[0020] The detection method is that the rewinding module controls the unwinding tension through the magnetic powder controller, and the two ends of the stripping cloth 5 are respectively fixed on the cloth-releasing air shaft 1 and the cloth-collecting air shaft 2. By controlling the edge correction device, the speed regulating device, and the tension control device, the edge of the stripping cloth 5 is allowed to run smoothly at a certain speed (low speed) in the fixed detection interval, and then 3 optical microscopes with the required magnification are selected for the microscope 3, and the height of the microscope 3 is adjusted to control the focus. When the stripping cloth 5 is operating normally in the rewinding machine, the detection software on the industrial computer is started, the software starts to detect, the microscope 3 is connected to the encoder, and by receiving the pulse signal of the encoder rotation, the image is collected and fed back to the software for algorithm detection. When the software detects a defect, the industrial computer saves the associated defect picture in real time for review at any time, and the alarm light is on and the operator is informed of the defect through the display 6. When the software does not detect the defect, the industrial computer saves the associated picture in real time for review at any time.

[0021] Working principle: When in use, the two ends of the stripping cloth 5 are conveniently fixed on the cloth-releasing air shaft 1 and the cloth-collecting air shaft 2. By controlling the edge correction device, the speed regulating device and the tension control device, the edge of the stripping cloth 5 is allowed to run smoothly at a certain speed (low speed) in a fixed detection interval. Then, 3 optical microscopes with the required magnification are selected for the microscope 3, and the height of the microscope 3 is adjusted to control the focus. Then, the unwinding tension is controlled by the magnetic powder controller. When the demoulding cloth 5 is operating normally on the rewinding machine, the detection software on the industrial computer is manually started, the software starts detection, the microscope 3 is connected to the encoder, and by receiving the pulse signal of the encoder rotation, image acquisition is performed and fed back to the software for algorithm detection. When the software detects a defect, the industrial computer saves the associated defect image in real time for review at any time. At the same time, the alarm light is on and the operator is informed of the defect through the display 6. When the software does not detect a defect, the industrial computer saves the associated image in real time for review at any time.

[0022] Through the above operations, the edge locking condition of the release cloth 5 can be effectively judged, and the improvement measures made for the edge locking condition of the release cloth 5 can be reliably verified.

[0023] It is used only to distinguish one entity or operation from another entity or operation, and does not necessarily require or imply any such actual relationship or order between these entities or operations. In addition, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, material or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, material or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A microscopic visual inspection device for a release cloth for composite materials, comprising a rewinding module, a microscope (3) acquisition module and an image processing module, characterized in that: The rewinding module comprises a cloth-releasing air shaft (1), a cloth-collecting air shaft (2), a magnetic powder brake, a deviation correction control device, a motor drive device, a meter control device, a tension control device, a speed adjustment device, and a plurality of cloth guide rollers (4); the microscope (3) acquisition module comprises a microscope (3) and a light source; and the image processing module comprises a display (6), an industrial computer, and an encoder.

2. The microscopic visual inspection device for release cloth for composite materials according to claim 1, characterized in that: A demoulding cloth (5) is slidably connected to the surface of the cloth guide roller (4), and two ends of the demoulding cloth (5) are respectively fixedly connected to the surface of the cloth-releasing air shaft (1) and the cloth-collecting air shaft (2).

3. The microscopic visual inspection device for release cloth for composite materials according to claim 1, characterized in that: The microscope (3) is located above the top of the release cloth (5), and the light source is located above the bottom of the release cloth (5).

4. The microscopic visual inspection device for release cloth for composite materials according to claim 1, characterized in that: The microscope (3) is electrically connected to a display (6), an industrial computer and an encoder.

5. A microscopic visual inspection method for release cloth for composite materials, characterized in that: The rewinding module controls the unwinding tension by means of magnetic powder, and the two ends of the demoulding cloth (5) are conveniently fixed on the cloth-releasing air shaft (1) and the cloth-collecting air shaft (2). By controlling the edge correction device, the speed regulating device, and the tension control device, the edge of the demoulding cloth (5) is allowed to run smoothly at a certain speed (low speed) in a fixed detection range, and then an optical microscope (3) with a desired magnification is selected for the microscope (3), and the height of the microscope (3) is adjusted to control the focus.

6. The microscopic visual inspection method for a release cloth for composite materials according to claim 5, characterized in that: When the demoulding cloth (5) is running normally on the rewinding machine, the detection software on the industrial computer is manually started and the software starts detection.

7. The microscopic visual inspection method for a release cloth (5) for composite materials according to claim 6, characterized in that: The microscope (3) is connected to the encoder, and by receiving the pulse signal of the encoder rotation, the image is collected and fed back to the software for algorithm detection.

8. The microscopic visual inspection method for a release cloth for composite materials according to claim 7, characterized in that: When the software detects a defect, the industrial computer saves the associated defect image in real time and can be viewed at any time.

9. The microscopic visual inspection method for a release cloth for composite materials according to claim 8, characterized in that: At the same time, the alarm lamp lights up and the operator is informed of the defect through the display (6).

10. The microscopic visual inspection method for a release cloth for composite materials according to claim 9, characterized in that: When the software does not detect a defect, the industrial computer saves the associated images in real time for review at any time.

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