A device for on-line detection of the quality of a fiber surface

Abstract

The utility model discloses a kind of fiber surface quality on-line detection device, including mounting seat, the side of mounting seat top is equipped with vertical plate, the side surface of vertical plate is equipped with light source and light-throwing plate respectively, light source is located the top of light-throwing plate, the other side of mounting seat top is equipped with image acquisition module, further include main control unit and man-machine interaction screen, light source, image acquisition module and man-machine interaction screen are all with main control unit signal connection.The utility model is irradiated to the fiber to be detected by light source, projection is generated on light-throwing plate, projection on light-throwing plate is collected by image acquisition module, the image collected is analyzed by main control unit, the quality of fiber surface is judged, non-contact detection to fiber surface quality is realized, can be directly installed on production line, realizes on-line sustainable detection.

Description

Technical Field

[0001] This utility model belongs to the field of fiber surface quality detection technology, and specifically relates to an online fiber surface quality detection device. Background Technology

[0002] To ensure the performance and quality of fiber products, during the fiber production process, such as spinning or drawing, it is necessary to check the fiber surface for problems such as fuzz, broken fibers, or knots. During the surface treatment process, it is necessary to check the coating uniformity, wettability, and the presence of bubbles or uncovered areas.

[0003] Currently, traditional fiber surface quality testing mainly relies on manual sampling, which suffers from low efficiency and high false negative rates. Some automated testing equipment uses contact sensors, which can easily damage the fibers, thus limiting testing to sampling and preventing online testing. Utility Model Content

[0004] The purpose of this invention is to provide an online fiber surface quality detection device to solve the problems mentioned in the background art. The online fiber surface quality detection device provided by this invention features non-contact detection and enables online detection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an online fiber surface quality detection device, including a mounting base, a vertical plate mounted on one side above the mounting base, a light source and a projection plate mounted on the side of the vertical plate respectively, the light source being located above the projection plate, an image acquisition module mounted on the other side above the mounting base, and also including a main control unit and a human-machine interface screen, the light source, the image acquisition module and the human-machine interface screen being signal connected to the main control unit.

[0006] Furthermore, the main control unit includes a main control chip, an FPGA chip, and a DSP processor.

[0007] To detect defects such as fuzz, broken fibers, knots, and fiber diameter on the fiber surface, as well as internal defects like microcracks or bubbles, the light source further includes both white light and near-infrared light sources, which are alternately used. The white light source has a wavelength range of 405-680nm, and the near-infrared light source has a wavelength range of 700-980nm.

[0008] To make the projection clearer and ensure the accuracy of image acquisition, a white screen is further covered on the upper surface of the projection panel.

[0009] To facilitate the adjustment of the camera's height and shooting angle, the image acquisition module further includes a height adjustment rod, the upper end of which is connected to the camera via a universal joint.

[0010] To facilitate the adjustment of the height of the light source and the projection plate, a waist groove is provided on the upright plate, and the light source and the projection plate are connected to the upright plate by wing bolts.

[0011] To issue an alarm and alert staff to address any quality defects, the system also includes a buzzer that is connected to the main control unit.

[0012] To upload data to mobile devices for remote viewing, a communication module is also included, which is connected to the main control unit via signals.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a light source to irradiate the fiber to be tested, generating a projection on a projection plate. The projection on the projection plate is collected by an image acquisition module, and the main control unit analyzes the collected image to determine the quality of the fiber surface. This achieves non-contact detection of fiber surface quality and can be directly installed on the production line for online continuous detection.

[0015] 2. The upper surface of the projection plate of this utility model is covered with a white screen, which makes the projection clearer and ensures the accuracy of image acquisition.

[0016] 3. The light source of this utility model includes a white light source and a near-infrared light source, which are alternately set. The white light source can detect whether there are fuzzy fibers, broken fibers, scars, and the diameter of the fiber on the fiber surface. The near-infrared light has stronger penetrating power and can detect defects such as hidden cracks or bubbles inside the fiber. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the image acquisition module of this utility model.

[0019] Figure 3 This is a block diagram of the detection system of this utility model.

[0020] In the diagram: 1. Mounting base; 2. Stand plate; 3. Light source; 4. Image acquisition module; 41. Height adjustment rod; 42. Universal mount; 43. Camera; 5. Projector plate; 6. Main control unit; 7. Human-machine interface screen; 8. Buzzer; 9. Communication module. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figures 1-3 This utility model provides the following technical solution: an online fiber surface quality detection device, including a mounting base 1, a vertical plate 2 installed on one side above the mounting base 1, a light source 3 and a projection plate 5 respectively installed on the side of the vertical plate 2, the light source 3 being located above the projection plate 5, an image acquisition module 4 installed on the other side above the mounting base 1, and also including a main control unit 6 and a human-machine interaction screen 7. The light source 3, the image acquisition module 4 and the human-machine interaction screen 7 are all signal connected to the main control unit 6. The human-machine interaction screen 7 is an 11-inch touch screen used for program setting, program control and display of detection information.

[0024] By adopting the above technical solution, this utility model uses light source 3 to irradiate the fiber to be tested, generating a projection on the projection plate 5. The image acquisition module 4 acquires the projection on the projection plate 5, and the main control unit 6 analyzes the acquired image to determine the quality of the fiber surface. This achieves non-contact detection of fiber surface quality, and can be directly installed on the production line to achieve online continuous detection.

[0025] Specifically, the main control unit 6 includes a main control chip, an FPGA chip, and a DSP processor.

[0026] The above technical solution is used to process and analyze the acquired images.

[0027] Specifically, the upper surface of the projection panel 5 is covered with a white screen.

[0028] By adopting the above technical solutions, the projection becomes clearer, ensuring the accuracy of image acquisition.

[0029] Specifically, the image acquisition module 4 includes a height adjustment rod 41, which is a common multi-segment adjustment rod. The upper end of the height adjustment rod 41 is connected to a camera 43 via a universal joint 42. The camera 43 is a CCD camera and includes an adjustable lens for adjusting the focus to ensure the clarity of the acquired image.

[0030] By adopting the above technical solution, it is easy to adjust the height and shooting angle of the camera 43.

[0031] Specifically, the upright plate 2 is provided with a waist groove, and the light source 3 and the projection plate 5 are both connected to the upright plate 2 by wing bolts.

[0032] By adopting the above technical solution, it is convenient to adjust the height of the light source 3 and the projection plate 5.

[0033] Example 2

[0034] The difference between this embodiment and embodiment 1 is that, specifically, the light source 3 includes a white light source and a near-infrared light source, which are alternately arranged. The wavelength of the white light source is 405-680nm, and the wavelength of the near-infrared light source is 700-980nm. The white light source can detect whether there are fuzzy fibers, broken fibers, knots, and the diameter of the fibers on the fiber surface.

[0035] By adopting the above technical solution, near-infrared light has stronger penetrating power, which can be used to detect defects such as hidden cracks or bubbles inside fibers.

[0036] Example 3

[0037] The difference between this embodiment and embodiment 1 is that, specifically, it also includes a buzzer 8, which is signal-connected to the main control unit 6.

[0038] By adopting the above technical solution, when a quality defect exists, an alarm will be sounded by buzzer 8 to remind staff to handle the issue.

[0039] Example 4

[0040] The difference between this embodiment and embodiment 1 is that: specifically, it also includes a communication module 9, which is connected to the main control unit 6 via a signal. The communication module uses an ESP8266 WiFi chip, and the WiFi chip communicates with the cloud server.

[0041] By adopting the above technical solution, data can be uploaded to mobile devices for remote viewing.

[0042] In summary, this invention uses a light source 3 to illuminate the fiber to be inspected, generating a projection on a projection plate 5. An image acquisition module 4 captures the projection on the projection plate 5, and a main control unit 6 analyzes the acquired image to determine the fiber surface quality. This achieves non-contact inspection of fiber surface quality and can be directly installed on a production line for continuous online inspection. The upper surface of the projection plate 5 is covered with a white screen to enhance projection clarity and ensure accurate image acquisition. The light source 3 includes a white light source and a near-infrared light source, which are alternately arranged. The white light source can detect the presence of fuzz, broken fibers, knots, and fiber diameter on the fiber surface, while the near-infrared light has stronger penetrating power, enabling the detection of internal defects such as microcracks or bubbles within the fiber.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An online fiber surface quality detection device, characterized in that: The device includes a mounting base, a vertical plate mounted on one side of the mounting base, a light source and a projection plate mounted on the side of the vertical plate, with the light source located above the projection plate, and an image acquisition module mounted on the other side of the mounting base. It also includes a main control unit and a human-machine interface screen, with the light source, image acquisition module and human-machine interface screen all connected to the main control unit via signals.

2. The online fiber surface quality detection device according to claim 1, characterized in that: The main control unit includes a main control chip, an FPGA chip, and a DSP processor.

3. The online fiber surface quality detection device according to claim 1, characterized in that: The light source includes a white light source and a near-infrared light source, with the white light source and the near-infrared light source being alternately arranged.

4. The online fiber surface quality detection device according to claim 3, characterized in that: The white light source has a wavelength range of 405-680nm, and the near-infrared light source has a wavelength range of 700-980nm.

5. The online fiber surface quality detection device according to claim 1, characterized in that: The upper surface of the projection panel is covered with a white curtain.

6. The online fiber surface quality detection device according to claim 1, characterized in that: The image acquisition module includes a height adjustment rod, and the upper end of the height adjustment rod is connected to a camera via a universal joint.

7. The online fiber surface quality detection device according to claim 1, characterized in that: The upright plate is provided with a waist groove, and the light source and the projection plate are both connected to the upright plate by wing bolts.

8. The online fiber surface quality detection device according to claim 1, characterized in that: It also includes a buzzer, which is connected to the main control unit via a signal.

9. The online fiber surface quality detection device according to claim 1, characterized in that: It also includes a communication module, which is connected to the main control unit via signals.

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