A fiber optic color wheel inspection apparatus

Abstract

The utility model relates to optical fiber detection technical field, concretely relates to a kind of optical fiber color ring detection device, the technical problem to be aimed at solving in at overcoming the defect of low detection accuracy in prior art, mainly is realized by following technical scheme: a kind of optical fiber color ring detection device, including workbench, workbench is equipped with color fixing device, still include detection structure and console, console is connected with detection structure signal control, detection structure includes detection cover body and two detection pieces, detection piece is installed in detection cover body and is arrayed along detection cover body length direction, detection cover body two ends are also equipped with guide wheel, each detection piece includes three groups of detection unit, each detection unit includes camera and stroboscope, uses stroboscope cooperation camera, meets the demand in high-speed production and can accurately clear capture color ring information on optical fiber, each color ring can be captured repeatedly and multidirectional repeatedly confirmed, reduce the influence of optical fiber swing or rotation on detection.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber testing technology, and specifically to an optical fiber color ring testing device. Background Technology

[0002] A fiber optic color ring detector is a device used to automatically identify and detect color rings on optical fibers. Color-ringed optical fibers are optical fibers that meet existing standards by spraying color rings of a certain color and length (i.e., spacing) onto their surface.

[0003] Color ring detection falls under the category of small target detection. Currently, fiber optic sensors are commonly used to detect color rings. The principle is that light emitted by the sensor is transmitted to a modulator via an optical fiber. When the light reaches the modulator, it shines perpendicularly onto the optical fiber. The color ring on the fiber changes due to the influence of the color ring, altering its surface color and transparency, thus affecting the propagation and reflection of light and changing its properties. The fiber then transmits the modulated light signal back to the optoelectronic device, which converts the light signal into an electrical signal. This signal is then processed and analyzed by the internal circuitry of the sensor. Based on a set threshold or other criteria, the sensor determines whether the color ring printed on the optical fiber meets the requirements.

[0004] In existing technologies, due to factors such as fiber rotation and wobbling, color ring circumference, working environment, and sensor light source intensity, inaccurate measurements, missed detections, and even false alarms of defects frequently occur. Furthermore, as orders for color-ringed optical fibers increase and production speeds accelerate, the shortcomings of traditional color-ring detectors become increasingly apparent, making them unable to meet the demands of high-speed production. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the defect of low detection accuracy in the prior art, thereby providing an optical fiber color ring detection device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A fiber optic color ring detection device includes a worktable with a color fixing device on the worktable. The device further includes a detection structure and a control console. The control console is mounted on one side of the worktable and connected to the detection structure via signal control. The detection structure is mounted on the worktable and located at the front end of the color fixing device. The detection structure includes a detection housing and two detection elements. The detection elements are arranged in an array along the length of the detection housing and mounted inside the housing. Guide wheels are also provided at both ends of the detection housing. Each detection element includes three sets of detection units, and each detection unit includes a camera and a stroboscope arranged in parallel.

[0008] By adopting the above technical solution, a detection structure is set up in front of the color fixing device to detect color rings. A stroboscope is used in conjunction with a camera to meet the needs of high-speed production and to accurately and clearly capture the color ring information on the optical fiber. Each color ring can be captured multiple times and repeatedly confirmed in multiple directions, reducing the impact of optical fiber shaking or rotation on the detection.

[0009] Furthermore, the detection units are arranged in a circular array along the transmission direction of the optical fiber, and the camera and stroboscope are arranged side by side and both are connected to the control console for signal control.

[0010] Furthermore, the stroboscope is equipped with a xenon flash, and the camera is positioned at the front end of the stroboscope.

[0011] By adopting the above technical solution, multiple detection units are set in the circumferential array of optical fibers. Utilizing the stroboscopic principle, rapidly flashing light is directly shone onto the running looping optical fiber. When the flashing frequency of the light source is synchronized with the looping frequency, the distribution of color rings on the high-speed moving optical fiber can be easily observed by taking pictures with a high-speed camera. This enables real-time monitoring and multiple capture confirmation of the looping process, allowing for early detection of missing or running rings and improving the accuracy of color ring optical fiber detection.

[0012] Furthermore, the detection enclosure is provided with a detection chamber corresponding to the detection component. Each of the two detection chambers has a through hole on its opposite sidewall for the optical fiber to pass through. An adjustment chamber is also provided between the two adjacent detection chambers. The length of the adjustment chamber is less than the length of the detection chamber. A through hole is provided on the opposite sidewall of the adjustment chamber. The diameter of the through hole is greater than the diameter of the through hole.

[0013] By adopting the above technical solution, the dual testing chambers test the same segment of the color ring fiber at least multiple times at different angles, and an adjustment chamber is set between the two testing chambers to control the smooth horizontal transport of the fiber and reduce the possibility of fiber deflection.

[0014] Furthermore, the detection units in the two detection chambers are staggered, and a transparent opening and closing plate is snapped onto the front side of the detection chamber. The opening and closing plate is vertically slidable relative to the detection chamber, and the height of the opening and closing plate is higher than the height of the detection chamber.

[0015] By adopting the above technical solution, the entire detection system is set up inside the detection enclosure, reducing the impact of the working environment and other external factors on the power supply light intensity.

[0016] Furthermore, the adjustment chamber is equipped with an adjustment wheel assembly, which includes two upward moving wheels and two downward pressing wheels. The axes of the upward moving wheels and the downward pressing wheels are arranged along the width direction of the detection cover and are rotatably installed in the adjustment chamber. The upward moving wheels and the downward pressing wheels are staggered vertically and are also raised and lowered in the adjustment chamber. The upward moving wheels and the downward pressing wheels are arranged in an array along the length direction of the detection cover, and the downward pressing wheels are located above the upward moving wheels.

[0017] By adopting the above technical solution and adjusting the force sensor on the wheel assembly, the position of the optical fiber can be slightly adjusted by moving the upper wheel and pressing the lower wheel, reducing the impact of vertical deflection.

[0018] Furthermore, each testing chamber is equipped with a guide wheel at the end away from the adjustment chamber. The guide wheel has an annular guide groove, and the width of the guide groove on the side closer to the center of the guide wheel is smaller than the width on the side farther from the center of the guide wheel.

[0019] By adopting the above technical solution, two guide wheels are used to limit the front and rear positions of the optical fiber transmission and reduce the back and forth swaying of the optical fiber.

[0020] Furthermore, the bottom of the detection cover extends with multiple mounting bases, which are fixed to the worktable by bolts.

[0021] By adopting the above technical solution, the entire detection cover is connected and installed on the workbench, reducing the impact of machine vibration on the detection, and cooperating with the subsequent color-fixing device for color-fixing operation.

[0022] In summary, the technical solution of this utility model has the following advantages:

[0023] 1. The fiber optic color ring detection device provided by this utility model uses a strobe device in conjunction with a camera to meet the needs of high-speed production and accurately and clearly capture the color ring information on the fiber. Each color ring can be captured multiple times and repeatedly confirmed from multiple directions, reducing the impact of fiber shaking or rotation on the detection.

[0024] 2. The fiber optic color ring detection device provided by this utility model transmits the images captured by the camera to the control console and can be combined with AI image recognition technology to process and analyze the images through computer algorithms, thereby achieving accurate and clear automatic identification of color rings on the fiber optic cable. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of an optical fiber color ring detection device provided in one embodiment of the present invention;

[0027] Figure 2 This is a partial structural diagram of the detection structure provided in one embodiment of the present invention;

[0028] Figure 3 This is a partial structural diagram of the guide wheel provided in one embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Workbench; 2. Color fixing device; 3. Detection structure; 4. Detection cover; 41. Mounting base; 5. Detection chamber; 51. Through hole; 52. Opening and closing plate; 6. Adjustment chamber; 61. Through hole; 62. Adjustment wheel set; 621. Upward moving wheel; 622. Downward pressing wheel; 7. Detection piece; 71. Detection unit; 711. Camera; 712. Stroboscope; 8. Control console; 9. Guide wheel; 91. Guide groove. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0032] A fiber optic color ring detection device, such as Figure 1 and Figure 2 As shown, the device includes a workbench 1, a color-fixing device 2 on the workbench 1, a detection structure 3 and a control console 8. The control console 8 is installed on the right side of the front of the workbench 1 and is connected to the detection structure 3 for signal control. The detection structure 3 is installed on the workbench 1 and is located at the front end of the production process of the color-fixing device 2. The optical fiber that has been detected is sent to the color-fixing device 2 for color fixing.

[0033] The detection structure 3 includes a detection housing 4 and two detection elements 7. The detection elements 7 are arranged in an array and installed inside the detection housing 4 along the length of the detection housing 4. The detection structure 3 is set in front of the color fixing device 2 to perform color ring detection. A stroboscope 712 is used in conjunction with a camera 711 to meet the needs of high-speed production and to accurately and clearly capture the color ring information on the optical fiber. Each color ring can be captured multiple times and repeatedly confirmed in multiple directions, reducing the impact of optical fiber shaking or rotation on the detection.

[0034] Each detection component 7 includes three detection units 71. Each detection unit 71 includes a camera 711 and a stroboscope 712 arranged in parallel. Both the camera 711 and the stroboscope 712 are connected to the control console 8 via signal control. The stroboscope 712 is equipped with a xenon flash, and the camera 711 is positioned in front of the stroboscope 712. The camera 711 is a high-speed, high-definition imaging device capable of capturing an optical fiber within a 20cm x 6cm range each time, and then sending the image to the control console 8 for analysis and processing. In this method, each color ring can be captured multiple times and repeatedly confirmed by the system. The analysis and processing process can be combined with AI for comparison, and specific settings can be configured according to requirements, such as whether a color ring is missing, whether the length of the color ring is qualified, whether the spacing between the color rings is qualified, and whether there is a deviation in the color of the color rings. The control console 8 saves and records the data from the camera 711.

[0035] The detection units 71 are arranged in a circular array along the transmission direction of the optical fiber. The detection units 71 in the two detection chambers 5 are staggered. In the first detection chamber 5, one detection unit 71 is directly above and two are below. In the second detection chamber 5, one detection unit 71 is directly below and two are above. The six detection units 71 in the two detection chambers 5 constitute a stroboscopic imaging detection of the optical fiber at six angles. The dual detection chambers 5 detect the same segment of the color ring optical fiber at least multiple times at different angles. The staggered arrangement of the detection units 71 ensures that all color rings can be captured and improves the accuracy of the final result.

[0036] A transparent hinged plate 52 is snapped onto the front side of the testing chamber 5. The hinged plate 52 is vertically slidable relative to the testing chamber 5, and its height is higher than that of the testing chamber 5. This allows the entire testing system to be housed within the testing enclosure 4, reducing the impact of the working environment and other external factors on the power supply illumination intensity. The hinged plate 52 is easy to operate and facilitates adjustment and maintenance of the internal structure.

[0037] An adjustment wheel assembly 62 is installed inside the adjustment chamber 6. The adjustment wheel assembly 62 includes two upward moving wheels 621 and two downward pressing wheels 622. The axes of the upward moving wheels 621 and the downward pressing wheels 622 are arranged along the width direction of the detection cover 4 and are rotatably installed in the adjustment chamber 6. The upward moving wheels 621 and the downward pressing wheels 622 are offset and are also raised and lowered in the adjustment chamber 6. The upward moving wheels 621 and the downward pressing wheels 622 are arranged in an array along the length direction of the detection cover 4, with the downward pressing wheels 622 positioned above the upward moving wheels 621. A force sensor can be installed at the adjustment wheel assembly 62. Before operation, the upward moving wheels 621 and the downward pressing wheels 622 are adjusted to be horizontal with the optical fiber and in contact but without applying force. After operation, when the force sensor detects any possible vertical deflection of the optical fiber, the position of the optical fiber can be slightly adjusted by raising and lowering the upward moving wheels 621 and the downward pressing wheels 622 to reduce the impact of vertical deflection.

[0038] like Figure 2 and Figure 3As shown, each of the two detection chambers 5 has a through hole 51 on its opposite sidewall for optical fiber to pass through, and the adjustment chamber 6 has a through hole 61 on its opposite sidewall. The diameter of the through hole 61 is larger than that of the through hole 51. The through hole 51 facilitates the insertion of optical fiber, and the diameter of the through hole 61 is increased to prevent the optical fiber from contacting the sidewall because the optical fiber may be adjusted vertically.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, guide wheels 9 are also provided at both ends of the detection housing 4. Guide wheels 9 are installed at the end of the detection chamber 5 away from the adjustment chamber 6. Annular guide grooves 91 are formed on the guide wheels 9. The width of the guide groove 91 on the side closer to the center of the guide wheel 9 is smaller than the width on the side farther from the center of the guide wheel 9, meaning the outer side of the guide groove 91 is larger. The two guide wheels 9 are used to limit the forward and backward position of the optical fiber transmission, reducing the forward and backward swaying of the optical fiber.

[0040] like Figure 1 and Figure 2 As shown, multiple mounting bases 41 extend from the bottom of the detection housing 4, and the mounting bases 41 are fixed to the worktable 1 by bolts. The entire detection housing 4 is connected and installed on the worktable 1 to reduce the impact of machine vibration on the detection, and to cooperate with the subsequent color fixing device 2 for color fixing operation.

[0041] The working principle and usage of this fiber optic color ring detection device are as follows: A detection cover 4 is set in front of the color fixing device 2. Two detection chambers 5 and an adjustment chamber 6 are set inside the detection cover 4. Three sets of detection units 71 are installed in the detection chambers 5, and the detection units 71 in the two detection chambers 5 are staggered. An adjustment wheel set 62 is installed in the adjustment chamber 6. Then, the optical fiber is introduced and led out into the color fixing device 2. After the conveying is started, the device will strobe and take pictures according to the conveying speed, and transmit the pictures to the control console 8 for processing.

[0042] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A fiber optic color ring detection device, comprising a worktable (1), wherein a color fixing device (2) is provided on the worktable (1), characterized in that, It also includes a detection structure (3) and a control console (8). The control console (8) is installed on one side of the workbench (1) and is connected to the detection structure (3) for signal control. The detection structure (3) is installed on the workbench (1) and located at the front end of the color fixing device (2). The detection structure (3) includes a detection cover (4) and two detection elements (7). The detection elements (7) are arranged in an array along the length of the detection cover (4) and installed inside the detection cover (4). The detection cover (4) is also provided with guide wheels (9) at both ends. Each detection element (7) includes three sets of detection units (71). Each detection unit (71) includes a camera (711) and a stroboscope (712) arranged in parallel.

2. The fiber optic color ring detection device according to claim 1, characterized in that, The detection unit (71) is arranged in a circular array along the transmission direction of the optical fiber, and the camera (711) and the stroboscope (712) are arranged side by side and are both connected to the control console (8) for signal control.

3. The fiber optic color ring detection device according to claim 2, characterized in that, The stroboscope (712) is equipped with a xenon flash, and the camera (711) is located at the front end of the stroboscope (712).

4. The fiber optic color ring detection device according to claim 3, characterized in that, The detection cover (4) is provided with a detection chamber (5) corresponding to the detection component (7). Each of the two detection chambers (5) has a through hole (51) for optical fiber to pass through on its opposite side wall. An adjustment chamber (6) is also provided between the two adjacent detection chambers (5). The length of the adjustment chamber (6) is less than the length of the detection chamber (5). A through hole (61) is provided on the opposite side wall of the adjustment chamber (6). The diameter of the through hole (61) is greater than the diameter of the through hole (51).

5. The fiber optic color ring detection device according to claim 4, characterized in that, The detection units (71) in the two detection chambers (5) are staggered. A transparent opening and closing plate (52) is snapped onto the front side of the detection chamber (5). The opening and closing plate (52) is vertically slidable relative to the detection chamber (5) and the height of the opening and closing plate (52) is higher than the height of the detection chamber (5).

6. The fiber optic color ring detection device according to claim 4, characterized in that, An adjustment wheel assembly (62) is provided in the adjustment chamber (6). The adjustment wheel assembly (62) includes two upper moving wheels (621) and two lower pressing wheels (622). The axes of the upper moving wheels (621) and the lower pressing wheels (622) are arranged along the width direction of the detection cover (4) and are rotatably installed in the adjustment chamber (6). The upper moving wheels (621) and the lower pressing wheels (622) are staggered vertically and are also installed vertically in the adjustment chamber (6). The upper moving wheels (621) and the lower pressing wheels (622) are arranged in an array along the length direction of the detection cover (4), and the lower pressing wheels (622) are located above the upper moving wheels (621).

7. The fiber optic color ring detection device according to claim 6, characterized in that, Each testing chamber (5) is equipped with a guide wheel (9) at the end away from the adjustment chamber (6). The guide wheel (9) has an annular guide groove (91). The width of the guide groove (91) on the side closer to the center of the guide wheel (9) is smaller than the width on the side away from the center of the guide wheel (9).

8. The fiber optic color ring detection device according to claim 7, characterized in that, The bottom of the detection cover (4) has multiple mounting bases (41), which are fixed to the worktable (1) by bolts.

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