A fiber optic macrobend detection device

Abstract

The application belongs to the technical field of optical fiber macro-bending detection, and specifically relates to an optical fiber macro-bending detection device, which comprises a supporting plate, a plurality of positioning wheels and a plurality of extrusion wheels arranged on the top of the supporting plate, a gap for accommodating an optical fiber arranged between adjacent positioning wheels and extrusion wheels, a tension adjusting mechanism arranged on the top of the supporting plate, the tension adjusting mechanism comprising a transition wheel slidingly connected to the top of the supporting plate, and a hydraulic telescopic rod fixedly connected to one side of the supporting plate and used for driving the transition wheel to slide. The technical means that the transition wheel and the limiting wheel are matched is adopted in the application. When the tension of the optical fiber is abnormal, the optical fiber will be deflected and extrude any limiting wheel on the two sides of the transition wheel. When the pressure sensor detects the pressure change, the hydraulic telescopic rod is triggered to act, the sliding plate is pushed to move transversely along the sliding groove of the supporting plate, the transition wheel is driven to slide synchronously through the sliding of the sliding plate, and then the tension of the optical fiber can be adjusted in time, and the macro-bending detection precision of the equipment can be ensured through the adjustment.

Description

Technical Field

[0001] This invention belongs to the field of optical fiber macrobend detection technology, specifically an optical fiber macrobend detection device. Background Technology

[0002] In the context of fully mechanized coal mining faces, optical fibers must move with the coal mining machine and navigate complex layouts such as equipment supports, inevitably resulting in bending deformation. If the macro-bending loss of the optical fiber itself is poorly controlled, or if the bending radius during installation is too small, signal attenuation will be exacerbated. This not only degrades the fiber's transmission performance but, in severe cases, can directly cause communication interruptions with the coal mining machine, data transmission distortion, and other malfunctions, affecting the continuity and safety of coal mining operations. Therefore, dedicated communication optical fibers for coal mines must undergo rigorous macro-bending tests before leaving the factory to ensure that their loss values ​​under actual bending conditions underground meet industry standards and equipment usage requirements, thus mitigating the risk of communication failures due to macro-bending loss from the outset.

[0003] Patent application CN118961148A discloses an optical fiber macrobending detection device, comprising: a support plate; a positioning wheel assembly including a plurality of positioning wheels spaced apart on the upper part of the support plate along a first direction; a pressing wheel assembly including a plurality of pressing wheels arranged between adjacent positioning wheels along the first direction and reciprocating along a second direction perpendicular to the first direction, with a first gap between adjacent positioning wheels and pressing wheels for accommodating optical fibers; and a driving mechanism for driving the pressing wheels to sequentially move away from or towards the positioning wheels. When the centers of the pressing wheels and positioning wheels are collinear, the optical fiber passing between the pressing wheels and positioning wheels is bent into a shape suitable for macrobending testing. In this invention, when the optical fiber bends, the pressing wheels move sequentially, reducing the linear velocity of the optical fiber and thus reducing the tensile force applied to the optical fiber, preventing fiber breakage or damage during macrobending, which would affect the accuracy of the optical fiber test. Simultaneously, the high precision of the optical fiber winding further improves the accuracy of the detection.

[0004] While the aforementioned patent documents can ensure the accuracy of fiber winding, there is a problem with the precise control of fiber tension when the operator inserts the fiber into the first gap formed by the adjacent positioning wheel and the pressing wheel. Due to the limitations of subjective experience and operational stability in manual operation, it is difficult to maintain the uniformity of fiber tension continuously, which can easily lead to uneven tension or sudden changes. Ultimately, this causes the fiber to deviate from the preset path and the winding shape to be skewed, resulting in a decrease in the macrobending detection accuracy of the equipment. Summary of the Invention

[0005] The purpose of this invention is to provide an optical fiber macrobend detection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an optical fiber macrobending detection device, comprising a support plate, the top of which is provided with a plurality of positioning wheels and a plurality of pressing wheels, and a gap for accommodating optical fibers is provided between adjacent positioning wheels and pressing wheels. A tension adjusting mechanism is provided on the top of the support plate, the tension adjusting mechanism including a transition wheel slidably connected to the top of the support plate. A hydraulic telescopic rod for driving the transition wheel to slide is fixedly connected to one side of the support plate. Limiting components are provided on both sides of the transition wheel, each limiting component including a fixed seat that slides synchronously with the transition wheel. A limiting wheel is provided on the top of the fixed seat, the diameter of the limiting wheel being smaller than the diameter of the transition wheel, and the center of the limiting wheel being collinear with the center of the transition wheel. A pressure sensor is slidably connected inside the fixed seat, the axle of the limiting wheel is rigidly connected to the pressure sensor, and the pressure sensor is electrically connected to the hydraulic telescopic rod. When the pressure sensor detects a pressure signal, it sends an electrical signal to the hydraulic telescopic rod.

[0007] Preferably, the bottom of the pallet is provided with an adjustment assembly for adjusting the gap between the positioning wheel and the extrusion wheel according to the fiber tension. The adjustment assembly includes a connecting plate fixedly connected to the bottom of the sliding plate, racks fixedly connected to both sides of the connecting plate, and rotating shafts rotatably connected to both sides of the bottom of the pallet. Gears meshing with the racks are fixedly connected to the surface of the rotating shafts, and cams are fixedly connected to the surface of the rotating shafts and below the gears. A movable plate that abuts against the cams is slidably connected to the bottom of the pallet, and the movable plate is connected to the extrusion wheel.

[0008] Preferably, a sleeve block is fixedly connected to the surface of the central shaft of the extrusion wheel, a slide rail for sliding the sleeve block is fixedly connected to one side of the moving plate, a return spring is fixedly connected to the inner wall of the slide rail, and the end of the return spring away from the inner wall of the slide rail is fixedly connected to the sleeve block.

[0009] Preferably, the tray has two symmetrically arranged inner grooves at its center, and a rectangular block is slidably connected in each inner groove. A connecting spring is fixedly connected to the inner wall of the inner groove, and the side of the connecting spring away from the inner wall of the inner groove is fixedly connected to the rectangular block. The rectangular block is fixedly connected to the movable plate.

[0010] Preferably, the transition wheel is located between two extrusion wheels located away from the end of the optical fiber.

[0011] Preferably, the bottom of the pallet is provided with a drive mechanism for driving the extrusion wheel away from the positioning wheel. The drive mechanism includes a housing fixedly connected to the bottom of the pallet. Two linkage plates are slidably connected inside the housing. Each linkage plate is provided with several wing plates with gradually decreasing slope angles at equal intervals along its length. The surface of the central shaft of the extrusion wheel is provided with a rolling bearing that cooperates with the wing plates. When the linkage plate moves towards the rolling bearing, the high slope of the wing plate gradually pushes the rolling bearing to move, thereby driving the extrusion wheel away from the positioning wheel.

[0012] Preferably, the side of the wing plate closest to the rolling bearing has a low slope, and the side of the wing plate furthest from the rolling bearing has a high slope.

[0013] Preferably, an electric actuator is fixedly connected to the inner wall of the housing, and a push plate is fixedly connected to the output end of the electric actuator. The push plate is fixedly connected to two linkage plates.

[0014] The beneficial effects of this invention are as follows: 1. This invention employs a combination of transition wheels and limit wheels. When the fiber tension is abnormal, the fiber will deflect and squeeze either limit wheel on either side of the transition wheel. When the pressure sensor detects the pressure change, it triggers the hydraulic telescopic rod to move, pushing the sliding plate laterally along the sliding groove of the support plate. The sliding plate drives the transition wheel to slide synchronously, which facilitates timely adjustment of the fiber tension. This adjustment helps ensure the accuracy of macrobending detection in the equipment.

[0015] 2. This invention employs a combination of a pressing wheel and a moving plate. During the tension adjustment of the optical fiber, the sliding plate drives the racks on both sides of the connecting plate to slide synchronously. The racks mesh with the gears, causing the cam, which rotates coaxially with the gears, to rotate. The rotating cam continuously contacts the moving plate, causing it to slide. The sliding of the moving plate drives the pressing wheel to move synchronously, thereby changing the gap between the pressing wheel and the positioning wheel. When the gap between the pressing wheel and the positioning wheel increases, the winding length increases and the tension decreases. When the gap between the pressing wheel and the positioning wheel decreases, the winding length shortens and the tension increases. Ultimately, the gap change adapts to the tension change, thereby ensuring a uniform macrobending rate and further ensuring the macrobending detection accuracy of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the limiting component of the present invention; Figure 3 This is a top view of the internal structure of the fixing base of the present invention; Figure 4 This is a top view of the structure of the present invention after the pressure sensor is installed on the mounting base; Figure 5 This is a bottom view of the tray structure of the present invention; Figure 6 For the present invention Figure 5 The enlarged view at point A is shown below; Figure 7 For the present invention Figure 5 The enlarged view at point B is shown below; Figure 8 This is a cross-sectional schematic diagram of the internal structure of the box body of the present invention.

[0017] In the picture: 1. Pallet; 2. Positioning wheels; 3. Extrusion rollers; 4. Transition wheel; 41. Limiting component; 411. Fixed seat; 412. Circular groove; 413. Spring seat; 414. Pressure sensor; 415. Limiting wheel; 42. Sliding groove; 43. Sliding plate; 44. Hydraulic telescopic rod; 45. Connecting plate; 46. Rack; 47. Gear; 48. Cam; 49. Inner groove; 491. Connecting spring; 492. Moving plate; 410. Rectangular block; 5. Electric actuator; 51. Push plate; 52. Linkage plate; 53. Rolling bearing; 54. Wing plate; 55. Housing; 6. Slide rail; 61. Return spring; 62. Sleeve block. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 8 As shown, this embodiment of the invention provides an optical fiber macrobending detection device, including a support plate 1. The top of the support plate 1 is provided with two sets of symmetrically distributed positioning wheels 2, each set containing several positioning wheels 2. The top of the support plate 1 is also provided with two sets of symmetrically distributed pressing wheels 3. A pressing wheel 3 is provided between each adjacent positioning wheel 2, ensuring that each bending unit consists of one pressing wheel 3 plus two positioning wheels 2. A gap is provided between adjacent positioning wheels 2 and pressing wheels 3 to accommodate optical fibers, thereby enabling the optical fibers to be stably bent into a preset curvature, which conforms to the wheel group layout standard for macrobending detection.

[0020] The top of the tray 1 is provided with a wire clamping mechanism for fixing the end of the optical fiber. The wire clamping mechanism includes a U-shaped fixing part fixed on the tray 1. A T-shaped clamping block is vertically inserted through the fixing part. A spring is connected to the lower part of the T-shaped clamping block to generate tension on it, so that the T-shaped clamping block can press the end of the optical fiber against the upper surface of the fixing part under the action of the spring tension. The wire clamping mechanism is existing technology, and the specific working principle will not be described in detail.

[0021] A transition wheel 4 is provided between two compression wheels 3 located away from the ends of the optical fibers. A sliding groove 42 is provided in the support plate 1, and a sliding plate 43 is slidably connected in the sliding groove 42. A hydraulic telescopic rod 44 for driving the sliding plate 43 to slide is fixedly connected to one side of the support plate 1. The transition wheel 4 is rotatably connected to the top of the sliding plate 43. Limiting components 41 are provided on the top of the sliding plate 43 and on both sides of the transition wheel 4. The limiting component 41 includes a fixed seat 411 fixedly connected to the top of the sliding plate 43. A limiting wheel 415 is provided on the top of the fixed seat 411, and the diameter of the limiting wheel 415 is smaller than the diameter of the transition wheel 4. The center of the limiting wheel 415 and the center of the transition wheel 4 are collinear along the normal transmission direction of the optical fiber, thereby ensuring that the optical fiber only contacts the transition wheel 4 when it is in normal condition, and only compresses the limiting wheel 415 when the optical fiber is deviated. To reduce unnecessary frictional wear, a U-shaped groove is provided on the top of the fixed base 411. The limiting wheel 415 is rotatably connected to the two side walls of the U-shaped groove through the wheel axle. A circular groove 412 is provided at the bottom of the inner wall of the fixed base 411. A spring seat 413 is fitted into the circular groove 412. The spring seat 413 contains a compression spring. A pressure sensor 414 is provided inside the fixed base 411 and at the top of the spring seat 413. The lower part of the wheel axle of the limiting wheel 415 is rigidly connected to the upper surface of the pressure sensor 414. The lower surface of the pressure sensor 414 is in contact with the upper end face of the spring seat 413. The pressure sensor 414 is electrically connected to the hydraulic telescopic rod 44. When the pressure sensor 414 detects a pressure signal, it sends an electrical signal to the hydraulic telescopic rod 44 and drives the hydraulic telescopic rod 44 to extend or retract.

[0022] Furthermore, the fit clearance between the axle of the limiting wheel 415 and the side wall of the U-shaped groove is 0.5 to 1 mm (to reserve axial movement space), ensuring that the axle of the limiting wheel 415 can move vertically downward along the U-shaped groove as the limiting wheel 415 is pressed, thereby pushing the pressure sensor 414 to compress the spring seat 413.

[0023] The bottom of the pallet 1 is provided with an adjustment mechanism for adjusting the gap between the extrusion wheel 3 and the positioning wheel 2. The adjustment mechanism includes a connecting plate 45 fixedly connected to the bottom of the sliding plate 43. A rack 46 is fixedly connected to both sides of the connecting plate 45. A rotating shaft is rotatably connected to both sides of the bottom of the pallet 1. A gear 47 that meshes with the rack 46 is fixedly connected to the surface of the rotating shaft. A cam 48 is fixedly connected to the surface of the rotating shaft and below the gear 47. Two inner grooves 49 are symmetrically opened at the center of the bottom of the pallet 1. A rectangular block 410 is slidably connected in each inner groove 49. A connecting spring 491 is fixedly connected to the inner wall of the inner groove 49. The side of the connecting spring 491 away from the inner wall of the inner groove 49 is fixedly connected to the rectangular block 410. A movable plate 492 fixedly connected to the rectangular block 410 is slidably connected to the bottom of the pallet 1. The movable plate 492 works in conjunction with the cam 48. The cam 48 rotates to push the movable plate 492 to slide.

[0024] Furthermore, when the fiber tension is abnormal, the fiber will deflect and squeeze either of the limit wheels 415 on both sides of the transition wheel 4. When the pressure sensor 414 detects the pressure change, it triggers the hydraulic telescopic rod 44 to move, pushing the sliding plate 43 to move laterally along the sliding groove 42 of the support plate 1. The connecting plate 45 moves synchronously with the sliding plate 43. The racks 46 on both sides of the connecting plate 45 move with the connecting plate 45 and mesh with the gears 47 on the rotating shafts on both sides of the bottom of the support plate 1. Since the cam 48 on the surface of the rotating shaft is coaxially fixed with the gears 47, the cam 48 will also rotate. Through the rotation of the cam 48, it continuously contacts the moving plate 492, causing the moving plate 492 to slide. Through the sliding of the moving plate 492, the extrusion wheel 3 moves synchronously, which ultimately changes the gap between the extrusion wheel 3 and the positioning wheel 2. When the gap between the extrusion wheel 3 and the positioning wheel 2 increases, the winding length increases and the tension decreases. When the gap between the extrusion wheel 3 and the positioning wheel 2 decreases, the winding length shortens and the tension increases. Ultimately, the gap change is adapted to the tension change, thereby ensuring the uniformity of the macrobending rate.

[0025] The bottom of the pallet 1 is equipped with a drive mechanism that drives the extrusion roller 3 away from the positioning roller 2. The drive mechanism includes a housing 55 fixedly connected to the bottom of the pallet 1. Two linkage plates 52 are slidably connected inside the housing 55. Each linkage plate 52 has several wing plates 54 with gradually decreasing slope angles evenly spaced along its length. Each extrusion roller 3 has a central shaft at its center. A rolling bearing 53 that rolls along the slope of the wing plate 54 is provided at the end of the central shaft away from the extrusion roller 3. The number of wing plates 54 is the same as the number of rolling bearings 53. Space is left between adjacent wing plates 54 to facilitate the placement of the rolling bearings 53. The slope of the wing plate 54 faces away from the positioning roller 2, that is, the side of the wing plate 54 closest to the rolling bearing 53 has a low slope. The side away from the rolling bearing 53 is a high slope. When the linkage plate 52 moves closer to the rolling bearing 53, the high slope of the wing plate 54 gradually pushes the rolling bearing 53 to move, thereby driving the extrusion wheel 3 away from the positioning wheel 2. A sleeve block 62 is fixedly connected to the surface of the central shaft of the extrusion wheel 3. A slide rail 6 for the sleeve block 62 to slide is fixedly connected to one side of the moving plate 492. A return spring 61 is fixedly connected to the inner wall of the slide rail 6. The return spring 61 is arranged along the length of the slide rail 6. The end of the return spring 61 away from the inner wall of the slide rail 6 is fixedly connected to the sleeve block 62. An electric push rod 5 is fixedly connected to the inner wall of the housing 55. A push plate 51 is fixedly connected to the output end of the electric push rod 5. The push plate 51 is fixedly connected to the two linkage plates 52.

[0026] Furthermore, a guide strip is fixed on the inner wall of the housing 55 along the sliding direction of the linkage plate 52, and a guide groove adapted to the guide strip is opened at the bottom of the linkage plate 52. The gap between the guide strip and the guide groove is ≤0.01mm, which facilitates the restriction of the sliding direction of the linkage plate 52 and avoids lateral deviation.

[0027] Furthermore, the rolling bearing 53 is fitted to the end of the central shaft of the extrusion wheel 3 with an interference fit, and the outer ring of the bearing is tightly fitted to the slope of the wing plate 54 to ensure that the rolling bearing 53 rolls along the slope when the linkage plate 52 is pushed, without slippage.

[0028] Working principle: After a comprehensive inspection of all components of the equipment, and if no errors are found, one end of the optical fiber is fixed by the crimping device. The free end of the optical fiber is placed around the positioning wheel 2 and the pressing wheel 3 on the crimping side and passes around the transition wheel 4 used for transition, and enters the positioning wheel 2 and the pressing wheel 3 on the side away from the crimping. After the optical fiber is wound, the electric push rod 5 is driven. Under the action of the reset spring 61 and the wing plates 54 with different slope angles, the pressing wheel 3 moves closer to the positioning wheel 2 in sequence until the pressing wheel 3 is completely reset, that is, collinear with the center of the positioning wheel 2. Finally, the two ends of the optical fiber are connected to the detection instrument PK2200 or PK2300 to read the data and calculate the loss of the optical fiber macrobending.

[0029] During this process, if the fiber tension is abnormal, the fiber will deflect and squeeze either of the limit wheels 415 on both sides of the transition wheel 4. When the pressure sensor 414 detects the pressure change, it triggers the hydraulic telescopic rod 44 to move, pushing the sliding plate 43 to move laterally along the sliding groove 42 of the support plate 1. The connecting plate 45 moves synchronously with the sliding plate 43, and the racks 46 on both sides of the connecting plate 45 move with the connecting plate 45, meshing with the gears 47 on the rotating shafts on both sides of the bottom of the support plate 1. Since the cams 48 on the surface of the rotating shaft are coaxially fixed with the gears 47, the cams 48 will also rotate, and the transmission is achieved through the cams 48. The rotating contact plate 492 is continuously contacted, causing the plate to slide. The sliding of the plate 492 drives the extrusion roller 3 to move synchronously, thereby changing the gap between the extrusion roller 3 and the positioning roller 2. When the gap between the extrusion roller 3 and the positioning roller 2 increases, the winding length increases and the tension decreases. When the gap between the extrusion roller 3 and the positioning roller 2 decreases, the winding length shortens and the tension increases. Ultimately, the gap change is adapted to the tension change, thereby ensuring the uniformity of the macrobending rate, providing a consistent benchmark for loss detection, and avoiding the problem of multiple detection data differences due to tension fluctuations of the same optical fiber.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fiber macrobending detection device, comprising a support plate (1), wherein a plurality of positioning wheels (2) and a plurality of pressing wheels (3) are provided on the top of the support plate (1), and a gap for accommodating optical fibers is provided between adjacent positioning wheels (2) and pressing wheels (3), characterized in that: The top of the pallet (1) is provided with a tension adjustment mechanism, which includes a transition wheel (4) slidably connected to the top of the pallet (1). A hydraulic telescopic rod (44) for driving the transition wheel (4) to slide is fixedly connected to one side of the pallet (1). Limiting members (41) are provided on both sides of the transition wheel (4). The limiting member (41) includes a fixed seat (411) that slides synchronously with the transition wheel (4). A limiting wheel (415) is provided on the top of the fixed seat (411). The diameter of the limiting wheel (415) is smaller than the diameter of the transition wheel (4). The center of the limiting wheel (415) is collinear with the center of the transition wheel (4). A pressure sensor (414) is slidably connected inside the fixed seat (411). The axle of the limiting wheel (415) is rigidly connected to the pressure sensor (414). The pressure sensor (414) is electrically connected to the hydraulic telescopic rod (44). When the pressure sensor (414) detects a pressure signal, it will send an electrical signal to the hydraulic telescopic rod (44).

2. The fiber macrobend detection device according to claim 1, characterized in that: The bottom of the pallet (1) is provided with an adjustment component for adjusting the gap between the positioning wheel (2) and the extrusion wheel (3) according to the fiber tension. The adjustment component includes a connecting plate (45) fixedly connected to the bottom of the sliding plate (43). Both sides of the connecting plate (45) are fixedly connected with racks (46). Both sides of the bottom of the pallet (1) are rotatably connected with shafts. The surface of the shaft is fixedly connected with gears (47) that mesh with the racks (46). The surface of the shaft and below the gears (47) is fixedly connected with a cam (48). The bottom of the pallet (1) is slidably connected with a moving plate (492) that abuts against the cam (48). The moving plate (492) is connected to the extrusion wheel (3).

3. The fiber macrobend detection device according to claim 2, characterized in that: A sleeve block (62) is fixedly connected to the surface of the central shaft of the extrusion wheel (3). A slide rail (6) for the sleeve block (62) to slide is fixedly connected to one side of the moving plate (492). A return spring (61) is fixedly connected to the inner wall of the slide rail (6). The end of the return spring (61) away from the inner wall of the slide rail (6) is fixedly connected to the sleeve block (62).

4. The fiber macrobending detection device according to claim 3, characterized in that: The tray (1) has two symmetrically arranged inner grooves (49), and a rectangular block (410) is slidably connected in each inner groove (49). A connecting spring (491) is fixedly connected to the inner wall of the inner groove (49). The side of the connecting spring (491) away from the inner wall of the inner groove (49) is fixedly connected to the rectangular block (410). The rectangular block (410) is fixedly connected to the moving plate (492).

5. The fiber macrobend detection device according to claim 1, characterized in that: The transition wheel (4) is located between two extrusion wheels (3) that are far from the ends of the optical fibers.

6. The fiber macrobend detection device according to claim 1, characterized in that: The bottom of the pallet (1) is provided with a driving mechanism that drives the extrusion wheel (3) away from the positioning wheel (2). The driving mechanism includes a box (55) fixedly connected to the bottom of the pallet (1). Two linkage plates (52) are slidably connected inside the box (55). Each linkage plate (52) is provided with several wing plates (54) with gradually decreasing slope angles at equal intervals along its length. The surface of the central shaft of the extrusion wheel (3) is provided with a rolling bearing (53) that cooperates with the wing plate (54). When the linkage plate (52) moves toward the rolling bearing (53), the high slope of the wing plate (54) gradually pushes the rolling bearing (53) to move, thereby driving the extrusion wheel (3) away from the positioning wheel (2).

7. The fiber macrobending detection device according to claim 6, characterized in that: The side of the wing plate (54) closest to the rolling bearing (53) has a low slope, and the side of the wing plate (54) furthest from the rolling bearing (53) has a high slope.

8. The fiber macrobending detection device according to claim 7, characterized in that: An electric push rod (5) is fixedly connected to the inner wall of the housing (55), and a push plate (51) is fixedly connected to the output end of the electric push rod (5). The push plate (51) is fixedly connected to two linkage plates (52).

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