CN220537170U - Optical fiber untwisting device - Google Patents

Abstract

The application provides an optical fiber untwisting device, belongs to optical fiber production technical field, includes: the device comprises a coiling device, a supporting device, a torsion device and a monitoring device; the optical fiber is wound on the coiling device after sequentially passing through the supporting device and the twisting device; the torque of the optical fiber drooping between the supporting device and the torsion device is monitored through the monitoring device, so that the torsion device is adjusted according to the monitored optical fiber state, when the optical fiber is in the torsion state, the torsion device is enabled to rotate in the direction opposite to the optical fiber torsion direction, and then the optical fiber is driven to synchronously rotate, so that the optical fiber is untwisted; when the monitoring device monitors that the optical fiber is in an untwisted state, starting the coiling device to coil the untwisted optical fiber on the coiling device; the optical fiber is reversely twisted after the state of the optical fiber at the sagging section is monitored, so that the optical fiber is untwisted, the correcting effect on the optical fiber is improved, the influence on the crosstalk of the optical fiber loop due to the optical fiber twisting is eliminated, and the production quality of the optical fiber is improved.

Description

Optical fiber untwisting device

Technical Field

The application belongs to the technical field of optical fiber production, and particularly relates to an optical fiber untwisting device.

Background

Fiber torsion is always a major concern in fiber production, and is affected by various factors in the fiber coiling process, which easily causes fiber torsion in the coiling process, affects the polarization state of light in the fiber, and further affects the crosstalk of the fiber loop.

The existing optical fiber untwisting machine mainly utilizes the tightness of optical fibers between an optical fiber releasing unit and an optical fiber receiving unit to adjust the tightness of the optical fibers, so that the whole length of optical fibers is untwisted integrally to reduce torsional stress existing in the optical fibers; however, the untwisting device has poor correction effect on the torsion of the optical fiber and affects the production quality of the optical fiber.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art or related technologies.

Therefore, the application provides an optical fiber untwisting device, which comprises: the device comprises a coiling device, a supporting device, a torsion device and a monitoring device; the coiling device is arranged on the mounting plate and is used for coiling the optical fiber; the supporting device is arranged on the mounting plate and is used for supporting the optical fiber; the torsion device is rotatably arranged on the mounting plate, is positioned between the supporting device and the coiling device and is used for driving the optical fiber to synchronously rotate; after passing through the supporting device and the torsion device, the optical fiber is coiled on the coiling device, and the optical fiber between the supporting device and the torsion device is in a natural sagging state; the monitoring device is used for monitoring the optical fiber between the supporting device and the torsion device.

In addition, the optical fiber untwisting device in the technical scheme provided by the application can also have the following additional technical characteristics:

in one possible embodiment, the length of the optical fiber between the support device and the torsion device is greater than the distance between the support device and the torsion device, so that the optical fiber naturally sags between the support device and the torsion device.

In one possible embodiment, the monitoring device comprises: a longitudinal vision acquisition device and a transverse vision acquisition device; the longitudinal vision acquisition device is positioned above the optical fiber and is used for acquiring overlooking image information of the optical fiber; the transverse vision acquisition device is positioned on one side of the optical fiber, and the longitudinal vision acquisition device is used for acquiring side-view image information of the optical fiber.

In one possible embodiment, the optical fiber untwisting device further includes: longitudinally collecting an imaging plate; the longitudinal acquisition imaging plate is horizontally arranged on the mounting plate, is positioned below the longitudinal vision acquisition device and the optical fiber and is used for displaying overlook image information of the optical fiber.

In a possible embodiment, the coiling means, the support means, the torsion means and the monitoring means are electrically connected to a control system for receiving feedback signals from the monitoring means and for sending control signals to the coiling means, the support means and the torsion means.

In a possible embodiment, the coiling device comprises: the first rotating frame, the first gear ring, the first driving device and the first gear; the first rotating frame is rotatably connected to the mounting plate, and is provided with a coiler used for coiling the optical fiber; the first gear ring is sleeved on the outer side of the first rotating frame and is fixedly connected with the first rotating frame; the first driving device is fixedly connected with the mounting plate; the first gear is sleeved on the outer side of an output shaft of the first driving device, the first gear is fixedly connected with the output shaft, and the first gear is meshed with the first gear ring so as to drive the first rotating frame to rotate along a vertical plane parallel to the axis of the coiler.

In one possible embodiment, the torsion device comprises: the second rotating frame, the second gear ring, the second driving device and the second gear; the second rotating frame is rotatably connected to the mounting plate, and is provided with a limiting device for limiting the optical fibers; the second gear ring is sleeved on the outer side of the second rotating frame and is fixedly connected with the second rotating frame; the second driving device is fixedly connected with the mounting plate; the second gear is sleeved on the outer side of the output shaft of the second driving device, is fixedly connected with the output shaft and is meshed with the second gear ring so as to drive the second rotating frame to rotate along a vertical plane parallel to the axis of the coiler; the first driving device and the second driving device are electrically connected with the control system so as to enable the second rotating frame and the first rotating frame to synchronously rotate.

In one possible embodiment, the limiting device comprises: the first conveying device, the second conveying device and the first linear expansion device; the first conveying device is arranged on the first rotating frame and is used for supporting the optical fibers; the second conveying device is positioned above the first conveying device, the optical fiber passes through the space between the first conveying device and the second conveying device, and the second conveying device is used for limiting the optical fiber; the fixed end of the first linear expansion device is connected with the first rotating frame, the expansion end of the first linear expansion device is connected with the second conveying device, and the first linear expansion device is used for adjusting the distance between the second conveying device and the first conveying device.

In a possible embodiment, the support device comprises: the third conveying device, the fourth conveying device and the second linear expansion device; the third conveying device is arranged on the mounting plate and is used for supporting the optical fibers; the fourth conveying device is positioned above the third conveying device, the optical fiber passes through the third conveying device and the fourth conveying device, and the fourth conveying device is used for limiting the optical fiber; the fixed end of the second linear expansion device is connected with the mounting plate, the expansion end of the second linear expansion device is connected with the fourth conveying device, and the second linear expansion device is used for adjusting the distance between the fourth conveying device and the third conveying device.

In one possible embodiment, the optical fiber untwisting device further includes: a limiting piece; the locating part sets up on the mounting panel, and the locating part is located between torsion device and the coiling device, and the locating part suit is in the outside of optic fibre for carry out spacingly to optic fibre.

Compared with the prior art, the optical fiber untwisting device has the beneficial effects that:

the optical fiber back-twisting device comprises a twisting device for adjusting the optical fiber torsion correction and a monitoring device for monitoring the optical fiber torsion, and the optical fiber is wound on the coiling device after sequentially passing through the supporting device and the twisting device; the torque of the optical fiber drooping between the supporting device and the torsion device is monitored through the monitoring device, so that the torsion device is adjusted according to the monitored optical fiber state, when the optical fiber is in the torsion state, the torsion device is enabled to rotate in the direction opposite to the optical fiber torsion direction, and then the optical fiber is driven to synchronously rotate, so that the optical fiber is untwisted; when the monitoring device monitors that the optical fiber is in an untwisted state, starting the coiling device to coil the untwisted optical fiber on the coiling device; the optical fiber is reversely twisted after the state of the sagged section is monitored, so that the optical fiber is untwisted, the correcting effect on the optical fiber is improved, the polarization state of light in the optical fiber is prevented from being influenced, the influence on the crosstalk of an optical fiber loop due to the optical fiber twisting is eliminated, and the production quality of the optical fiber is improved.

The torsion condition and the torsion direction of the optical fiber are comprehensively judged through the overlook projection image and the side view projection image of the sagging section optical fiber, so that the accuracy of monitoring the torsion state of the optical fiber is improved; and the optical fiber is driven to reversely rotate by the torsion device, so that the optical fiber is untwisted until the overlooking image of the sagging section optical fiber collected by the longitudinal vision collecting device is in a straight line, and the test image of the sagging section optical fiber collected by the transverse vision collecting device is in a preset parabola, so that the optical fiber is untwisted completely, the residual torsion of the optical fiber can be reduced, and the correcting effect on the optical fiber is improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic diagram of a first structure of an optical fiber untwisting device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a second structure of an optical fiber untwisting device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a longitudinal vision acquisition device monitoring of an optical fiber untwisting device according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a monitoring device of a lateral vision acquisition device of an optical fiber untwisting device according to an embodiment of the present application;

FIG. 5 is a control schematic diagram of an optical fiber untwisting device according to an embodiment of the present application;

wherein, the correspondence between the reference numerals and the component names in fig. 1 to 5 is:

10. an optical fiber; 11. a mounting plate; 12. a coiling device; 121. a first rotating frame; 1211. a first support frame; 1212. a first support sleeve; 1213. a first bearing; 122. a first ring gear; 123. a first driving device; 124. a first gear; 125. a coiler; 13. a torsion device; 131. a second turret; 132. a second ring gear; 133. a second driving device; 134. a second gear; 135. a limiting device; 1351. a first conveying device; 1352. a second conveying device; 1353. a first linear expansion device; 14. a support device; 141. a third conveying device; 142. a fourth conveying device; 143. a second linear expansion device; 15. a monitoring device; 151. a longitudinal vision acquisition device; 152. a transverse vision acquisition device; 16. longitudinally collecting an imaging plate; 17. and a limiting piece.

Detailed Description

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The preferred embodiments of the present application will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present application only and are not intended to limit the present application.

Referring to fig. 1-2 in combination, according to an embodiment of the present application, an optical fiber untwisting device includes: a coiling device 12, a supporting device 14, a twisting device 13 and a monitoring device 15; a coiling device 12 is arranged on the mounting plate 11, and the coiling device 12 is used for coiling the optical fiber 10; a supporting means 14 is provided on the mounting plate 11, the supporting means 14 being for supporting the optical fiber 10; the torsion device 13 is rotatably arranged on the mounting plate 11, the torsion device 13 is positioned between the supporting device 14 and the coiling device 12, and the torsion device 13 is used for driving the optical fiber 10 to synchronously rotate; wherein after the optical fiber 10 passes through the supporting device 14 and the torsion device 13, the optical fiber 10 is coiled on the coiling device 12, and the optical fiber 10 between the supporting device 14 and the torsion device 13 is in a natural sagging state; the monitoring device 15 is used for monitoring the optical fiber 10 between the support device 14 and the torsion device 13.

The optical fiber untwisting device provided by the embodiment of the application comprises a torsion device 13 for adjusting torsion correction of the optical fiber 10 and a monitoring device 15 for monitoring torsion of the optical fiber 10, wherein the optical fiber 10 is wound on a coiling device 12 after sequentially passing through a supporting device 14 and the torsion device 13; the torque of the optical fiber 10 drooping between the supporting device 14 and the torsion device 13 is monitored through the monitoring device 15, so that the torsion device 13 is adjusted according to the monitored state of the optical fiber 10, when the optical fiber 10 is in the torsion state, the torsion device 13 is rotated in the direction opposite to the torsion direction of the optical fiber 10, and the optical fiber 10 is driven to synchronously rotate, so that the optical fiber 10 is untwisted; when the monitoring device 15 monitors that the optical fiber 10 is in an untwisted state, the coiling device 12 is started, so that the untwisted optical fiber 10 is coiled on the coiling device 12; by monitoring the state of the optical fiber 10 in the sagging section and correspondingly reversely twisting the optical fiber 10, the optical fiber 10 is untwisted, and the correction effect on the optical fiber 10 is improved, so that the polarization state of light in the optical fiber 10 is prevented from being influenced, the influence on the ring crosstalk of the optical fiber 10 caused by the twisting of the optical fiber 10 is eliminated, and the production quality of the optical fiber 10 is improved.

In one possible embodiment, as shown in fig. 1 and 2, the length of the optical fiber 10 between the support device 14 and the torsion device 13 is greater than the distance between the support device 14 and the torsion device 13, so that the optical fiber 10 naturally sags between the support device 14 and the torsion device 13.

In this technical solution, the length of the optical fiber 10 between the supporting device 14 and the twisting device 13 is longer than the distance between the supporting device 14 and the twisting device 13, so that a section of the optical fiber 10 between the supporting device 14 and the twisting device 13 is in a natural sagging state, the sagging section of the optical fiber 10 can be visually judged according to the shape of the optical fiber 10, and then the twisting direction of the sagging section of the optical fiber 10 can be visually judged by controlling the twisting device 13 to rotate in the opposite direction, so that the optical fiber 10 is untwisted, and the judgment is visual and accurate.

Further, the lowest point of the optical fiber 10 in the sagging section after natural sagging is higher than the lowest point of the mounting plate 11, so that the optical fiber 10 is prevented from sagging on the supporting surface, the accuracy of monitoring by the monitoring device 15 is ensured, and the correction effect of the optical fiber 10 is improved.

In one possible embodiment, as shown in fig. 1, a longitudinal vision acquisition device 151 and a lateral vision acquisition device 152; the longitudinal vision acquisition device 151 is located above the optical fiber 10, and the longitudinal vision acquisition device 151 is used for acquiring top view image information of the optical fiber 10; the lateral vision collecting device 152 is located at one side of the optical fiber 10, and the longitudinal vision collecting device 151 is used for collecting side-view image information of the optical fiber 10.

In the technical scheme, a longitudinal visual material device is arranged above the sagging section of optical fiber 10 to collect a top projection image of the sagging section of optical fiber 10; the transverse visual material device is arranged on one side of the sagging section optical fiber 10 far away from the mounting plate 11 so as to collect side view projection images of the sagging section optical fiber 10, and the torsion condition and the torsion direction of the optical fiber 10 are comprehensively judged through the overlook projection images and the side view projection images of the sagging section optical fiber 10, so that the accuracy of monitoring the torsion state of the optical fiber 10 is improved; the optical fiber 10 is driven to reversely rotate by the torsion device 13, so that the optical fiber 10 is untwisted until the overlooking image of the sagging section of the optical fiber 10 acquired by the longitudinal vision acquisition device 151 is in a straight line, the test image of the sagging section of the optical fiber 10 acquired by the transverse vision acquisition device 152 is in a preset parabola, the optical fiber 10 is untwisted completely, the optical fiber 10 can be coiled, the residual torsion of the optical fiber 10 is reduced, and the correction effect of the optical fiber 10 is improved.

As shown in fig. 3 and 4, if the sagging fiber section 10 is deflected, the sagging fiber section 10 has a sine or cosine waveform in a longitudinal plane view; if the drop length of optical fiber 10 is not biased, the vertical top view of the drop length of optical fiber 10 is a line. If the sagging fiber 10 is not deflected, the side view of the sagging fiber 10 is a smooth parabola; if the sagging length of optical fiber 10 is deflected, the parabolic nadir of the side view image of the sagging length of optical fiber 10 moves upward and the parabolic curve is not smooth.

Further, the peripheries of the longitudinal vision collecting device 151 and the transverse vision collecting device 152 are respectively provided with an annular light source which irradiates the optical fiber 10, so that the sagging section of the optical fiber 10 respectively generates a top projection image and a side projection image.

In one possible embodiment, as shown in fig. 1 and 2, a longitudinal acquisition imaging plate 16 is horizontally disposed on the mounting plate 11, the longitudinal acquisition imaging plate 16 being located below the longitudinal vision acquisition device 151 and the optical fiber 10, the longitudinal acquisition imaging plate 16 being configured to display top view image information of the optical fiber 10.

In the technical scheme, the longitudinal acquisition imaging plate 16 is horizontally arranged below the sagging section optical fiber 10 to serve as a background plate for overlooking images of the sagging section optical fiber 10, so that the influence of an external complex environment on a monitoring result is avoided, and the monitoring precision of the monitoring device 15 is improved.

It will be appreciated that as shown in fig. 1, the mounting plate 11 serves as a background plate for the side view image of the sagging fiber 10, so that the side view projection of the sagging fiber 10 is directly imaged on the mounting plate 11, which is intuitive and convenient and is beneficial for reducing the manufacturing cost.

In a possible embodiment, as shown in fig. 5, the coiling means 12, the supporting means 14, the torsion means 13 and the monitoring means 15 are electrically connected to a control system for receiving feedback signals from the monitoring means 15 and for sending control signals to the coiling means 12, the supporting means 14 and the torsion means 13.

In this technical scheme, monitoring device 15 sends the optical fiber 10 torque image data of the sagging section of monitoring in different directions to control system through coding feedback ware, control system compares, after the analysis received optical fiber 10 image information, control system carries out control adjustment to torsion device 13 rotation angle, make torsion device 13 directional torsion, realize the back-torsion of optical fiber 10, until monitoring sagging section of optical fiber 10 is in the untwisted state, control system controls coiling device 12 rotation, the optical fiber 10 coiling after the back-torsion is in the regulation mode of negative feedback, control system carries out correction adjustment processing to optical fiber 10, thereby carry out effective back-torsion adjustment to optical fiber 10 according to the torsion condition of optical fiber 10, in order to guarantee that optical fiber 10 is in the normal state of untwisting all the time in optical fiber 10 coiling process.

In some examples, the control system includes a PLC controller, a touch screen, 2 wireless transmitters and 2 wireless encoder receiving devices, and the longitudinal vision acquisition device 151 and the transverse vision acquisition device respectively send torque images of the sagging section of the optical fiber 10 monitored in two directions to the PLC controller through respective corresponding encoding feedback devices, and then the PLC controller sends a control signal to the torsion device 13, so that the torsion device 13 performs directional torsion, and the optical fiber 10 is untwisted.

Specifically, the longitudinal vision acquisition device 151 and the transverse vision acquisition device 152 send the acquired images of the optical fiber 10 to a PLC controller, the PLC controller firstly controls the torsion device 13 to rotate, and when the PLC controller receives an increase in the number of peaks/troughs of the sine/cosine images of the optical fiber 10 in the longitudinal overlook image, the PLC controller controls the torsion device 13 to reversely rotate; when the PLC controller receives a decrease in the number of peaks/valleys of the sine/cosine image of the optical fiber 10 in the longitudinal top view image, the PLC controller controls the twisting device 13 to continue rotating in the original rotation direction until the PLC controller receives a trend that the number of peaks/valleys of the sine/cosine image of the optical fiber 10 in the longitudinal top view image approaches 0 and the optical fiber 10 in the lateral side view image decreases to a preset position, the PLC controller controls the twisting device 13 to stop rotating and controls the coiling device 12 to coil the optical fiber 10. When the PLC controller receives that the number of peaks/valleys of the sine/cosine image of the optical fiber 10 in the longitudinal overlook image increases again, the PLC controller controls the coiling device 12 to stop rotating and starts the twisting device 13, and continuously untwists the optical fiber 10, so that the function of correcting the optical fiber 10 is realized.

In one possible embodiment, as shown in fig. 1 and 2, a first rotating frame 121 is rotatably connected to the mounting plate 11, and a coiler 125 is provided on the first rotating frame 121, and the coiler 125 is used for coiling the optical fiber 10; the first gear ring 122 is sleeved on the outer side of the first rotating frame 121, and the first gear ring 122 is fixedly connected with the first rotating frame 121; the first driving device 123 is fixedly connected with the mounting plate 11; the first gear 124 is sleeved on the outer side of the output shaft of the first driving device 123, the first gear 124 is fixedly connected with the output shaft, and the first gear 124 is meshed with the first gear ring 122 to drive the first rotating frame 121 to rotate along a vertical plane parallel to the axis of the coiler 125.

In this embodiment, the first rotating frame 121 is provided with the coiler 125 and the first ring gear 122 by rotatably connecting the first rotating frame 121 to the mounting plate 11; the first gear 124 is driven to rotate by the first driving device 123 to be meshed with the first gear ring 122, the first gear ring 122 and the first mounting frame are driven to rotate along a vertical plane parallel to the axis of the coiler 125, the coiler 125 is driven to rotate along the vertical plane parallel to the axis of the coiler 125, the optical fiber 10 between the coiler 125 and the torsion device 13 is prevented from being twisted when the torsion device 13 untwists the optical fiber 10, so that the optical fiber 10 in the sagging section cannot be twisted again before coiling, the optical fiber 10 is in a straight line state before coiling, the optical fiber 10 coiled on the coiler 125 is further guaranteed to be in an untwisted state, the polarization state of light in the optical fiber 10 is prevented from being influenced, the influence of the torsion of the optical fiber 10 on the crosstalk of the optical fiber 10 is eliminated, and the production quality of the optical fiber 10 is improved.

Further, a first support frame 1211 is disposed on the mounting plate 11, a first support sleeve 1212 is rotatably connected to the inside of the first support frame 1211, and a first bearing 1213 is disposed between the first support sleeve 1212 and the first support frame 1211, so as to improve the flexibility and timeliness of rotation of the first support sleeve 1212; the inner part of the first support sleeve 1212 is provided with a coiler 125, and the outer side of the first support sleeve 1212 is sleeved with a first gear ring 122 to drive the first support sleeve 1212 and the coiler 125 to rotate, thereby preventing the optical fiber 10 from being twisted twice.

In a possible embodiment, as shown in fig. 1 and 2, the second rotating frame 131 is rotatably connected to the mounting plate 11, and a limiting device 135 is disposed on the second rotating frame 131, where the limiting device 135 is used for limiting the optical fiber 10; the second gear ring 132 is sleeved on the outer side of the second rotating frame 131, and the second gear ring 132 is fixedly connected with the second rotating frame 131; the second driving device 133 is fixedly connected with the mounting plate 11; the second gear 134 is sleeved on the outer side of the output shaft of the second driving device 133, the second gear 134 is fixedly connected with the output shaft, and the second gear 134 is meshed with the second gear ring 132 to drive the second rotating frame 131 to rotate along a vertical plane parallel to the axis of the coiler 125; wherein the first driving device 123 and the second driving device 133 are electrically connected to the control system to rotate the second rotating frame 131 in synchronization with the first rotating frame 121.

In this embodiment, the second rotating frame 131 is provided with a limiting device 135 and a second gear ring 132, and the second rotating frame 131 is rotatably connected to the mounting plate 11; the second gear 134 is driven to rotate by the second driving device 133 to be meshed with the second gear ring 132, the second gear ring 132 and the second mounting frame are driven to rotate along a vertical plane parallel to the axis of the coiler 125, the limiting device 135 is driven to rotate along the vertical plane parallel to the axis of the coiler 125, the limiting device 135 can clamp the optical fiber 10 and limit the optical fiber 10, and when the limiting device 135 rotates, the limiting device 135 drives the optical fiber 10 to synchronously rotate, so that untwisting of the optical fiber 10 is realized. By rotating the second rotating frame 131 in synchronization with the first rotating frame 121, the sagging fiber 10 is prevented from twisting again during the forward feeding, so that the sagging fiber 10 is kept in a straight state after untwisting, thereby ensuring that the fiber 10 is wound on the coiler 125 in an untwisted state.

Further, a second support frame is arranged on the mounting plate 11, the second support frame is parallel to the first support frame 1211, a second support sleeve is rotatably connected inside the second support frame, and a second bearing is arranged between the second support sleeve and the second support frame, so that the rotation flexibility and timeliness of the second support sleeve are improved; the second support sleeve is internally provided with a limiting device 135, and the outer side of the second support sleeve is sleeved with a second gear ring 132 so as to drive the second support sleeve and the limiting device 135 to rotate, and untwist the optical fiber 10.

Preferably, the first gear 124 and the second gear 134 have the same specifications, the first gear ring 122 and the second gear ring 132 have the same specifications, and the first rotating frame 121 and the second rotating frame 131 can be synchronously rotated by controlling the first driving device 123 and the second driving device 133 to synchronously rotate, so that the optical fiber 10 between the coiling device 12 and the torsion device 13 can be synchronously rotated, and the adjustment control is simple and convenient.

In one possible embodiment, as shown in fig. 2, a first conveying device 1351 is provided on the first rotating frame 121, and the first conveying device 1351 is used to support the optical fiber 10; the second conveying device 1352 is located above the first conveying device 1351, the optical fiber 10 passes through between the first conveying device 1351 and the second conveying device 1352, and the second conveying device 1352 is used for limiting the optical fiber 10; the fixed end of the first linear expansion device 1353 is connected with the first rotating frame 121, the expansion end of the first linear expansion device 1353 is connected with the second conveying device 1352, and the first linear expansion device 1353 is used for adjusting the distance between the second conveying device 1352 and the first conveying device 1351.

In this embodiment, the optical fiber 10 passes between the first conveying device 1351 and the second conveying device 1352, and the first conveying device 1351 is located below the optical fiber 10 and plays a role of supporting the optical fiber 10; the second conveying device 1352 is located above the optical fiber 10 and is fixed at the telescopic end of the first linear telescopic device 1353, and the first linear telescopic device 1353 stretches and contracts to drive the second conveying device 1352 to lift, so that the distance between the second conveying device and the first conveying device 1351 is adjusted. When the second conveyor is spaced more from the first conveyor, the placement of the optical fiber 10 is facilitated; when the second conveying device 1352 is attached to the optical fiber 10 placed on the first conveying device 1351, friction force is generated between the second conveying device 1352 and the optical fiber 10, and the optical fiber 10 can be conveyed by using the first conveying device 1351 and the second conveying device 1352; the optical fiber 10 clamping device can also play a role in clamping the optical fiber 10 so as to drive the optical fiber 10 to synchronously rotate when the second rotating frame 131 rotates, prevent the optical fiber 10 from generating relative rotation with the first conveying device or the second conveying device, and ensure the effectiveness of the untwisting action of the optical fiber 10.

In a possible embodiment, as shown in fig. 1 and 2, a third delivery device 141 is provided on the mounting plate 11, the third delivery device 141 being for supporting the optical fiber 10; the fourth conveying device 142 is located above the third conveying device 141, the optical fiber 10 passes through between the third conveying device 141 and the fourth conveying device 142, and the fourth conveying device 142 is used for limiting the optical fiber 10; the fixed end of the second linear expansion device 143 is connected with the mounting plate 11, the expansion end of the second linear expansion device 143 is connected with the fourth conveying device 142, and the second linear expansion device 143 is used for adjusting the distance between the fourth conveying device 142 and the third conveying device 141.

In this embodiment, the optical fiber 10 passes between the third conveying device 141 and the fourth conveying device 142, and the third conveying device 141 is located below the optical fiber 10 and supports the optical fiber 10; the fourth conveying device 142 is located above the optical fiber 10 and is fixed at the telescopic end of the second linear telescopic device 143, and the fourth conveying device 142 is driven to lift by the telescopic operation of the first linear telescopic device 1353, so as to adjust the distance between the fourth conveying device and the third conveying device 141. When the fourth conveyor is spaced more apart from the third conveyor, the placement of the optical fiber 10 is facilitated; when the fourth transporting device 142 is attached to the optical fiber 10 placed on the third transporting device 141, friction is generated between the fourth transporting device 142 and the optical fiber 10, and the optical fiber 10 can be transported by using the third transporting device 141 and the fourth transporting device 142; the optical fiber clamping device can also play a role in clamping the optical fiber 10, and the optical fiber 10 behind the sagging section is prevented from rotating when the limiting device 135 is rotated, so that the rotation of the limiting device 135 is ensured to only back-twist the sagging section of the optical fiber 10, and the back-twist efficiency is improved.

Further, the top surface of the third conveying device 141 and the top surface of the first conveying device 1351 are located in the same horizontal plane, so that two ends of the sagging fiber section 10 are located at the same height, and the untwisted side view image of the sagging fiber section 10 is in a standard parabolic shape, so that the monitoring device 15 can rapidly and accurately judge the state of the sagging fiber section 10, the monitoring timeliness is improved, and the production efficiency of the fiber section 10 is improved.

Further, the first conveying device 1351, the second conveying device 1352, the third conveying device 141 and the fourth conveying device 142 are controlled to synchronously convey through the control system, so that the problem that the length of the optical fiber 10 of the sagging section is changed and the height of the lowest point of the optical fiber 10 of the sagging section is changed due to inconsistent conveying speeds of the supporting device 14 and the twisting device 13 is avoided, the lowest point of the optical fiber 10 of the sagging section in a side view image is guaranteed to move upwards only due to twisting of the optical fiber 10, the accuracy of monitoring the state of the optical fiber 10 is guaranteed, and the correcting effect of the optical fiber 10 is guaranteed.

In a possible embodiment, as shown in fig. 1, a limiting member 17 is disposed on the mounting plate 11, the limiting member 17 is located between the torsion device 13 and the coiling device 12, and the limiting member 17 is sleeved on the outer side of the optical fiber 10 for limiting the optical fiber 10.

In this technical solution, the optical fiber 10 is supported and limited by the limiting member 17 provided between the torsion device 13 and the coiling device 12, so that the optical fiber 10 coiled on the coiling device 12 can be prevented from loosening when the coiling device 12 and the torsion device 13 are turned over, which is beneficial to preventing the optical fiber 10 from being twisted twice.

Further, the limiting piece 17 is in a rod shape, and one end of the limiting piece 17 is provided with a limiting groove which is used for accommodating and supporting the optical fiber 10; the limiting piece 17 is perpendicular to the mounting plate 11, so that the limiting groove is at a certain distance from the mounting plate 11, and the optical fiber 10 passing through the torsion device 13, the limiting piece 17 and the coiling device 12 can approach to a straight line state, so that the flexibility of conveying and coiling the optical fiber 10 is ensured, and friction is reduced.

It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.

The foregoing description of the preferred embodiment of the present utility model is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model. The foregoing is merely a preferred embodiment of the present application and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principles of the present application, and these modifications and variations should also be regarded as the scope of the present application.

Claims (10)

1. An optical fiber untwisting device, characterized in that the optical fiber untwisting device comprises:

a coiling device (12), wherein the coiling device (12) is arranged on the mounting plate (11), and the coiling device (12) is used for coiling the optical fiber (10);

-a support device (14), the support device (14) being arranged on the mounting plate (11), the support device (14) being adapted to support the optical fiber (10);

the torsion device (13) is rotatably arranged on the mounting plate (11), the torsion device (13) is positioned between the supporting device (14) and the coiling device (12), and the torsion device (13) is used for driving the optical fiber (10) to synchronously rotate;

wherein after the optical fiber (10) passes through the supporting device (14) and the torsion device (13), the optical fiber (10) is coiled on the coiling device (12), and the optical fiber (10) positioned between the supporting device (14) and the torsion device (13) is in a natural sagging state;

-monitoring means (15), said monitoring means (15) being adapted to monitor an optical fiber (10) between said support means (14) and said torsion means (13).

2. An optical fiber untwisting apparatus as defined in claim 1, wherein,

the length of the optical fiber (10) positioned between the supporting device (14) and the torsion device (13) is longer than the distance between the supporting device (14) and the torsion device (13), so that the optical fiber (10) naturally sags between the supporting device (14) and the torsion device (13).

3. An optical fiber untwisting device according to claim 1, characterized in that the monitoring device (15) comprises:

the longitudinal vision acquisition device (151) is positioned above the optical fiber (10), and the longitudinal vision acquisition device (151) is used for acquiring overlook image information of the optical fiber (10);

the transverse vision acquisition device (152), the transverse vision acquisition device (152) is located on one side of the optical fiber (10), and the longitudinal vision acquisition device (151) is used for acquiring side view image information of the optical fiber (10).

4. A fiber untwisting apparatus as defined in claim 3, further comprising:

the longitudinal acquisition imaging plate (16), the longitudinal acquisition imaging plate (16) is horizontally arranged on the mounting plate (11), the longitudinal acquisition imaging plate (16) is located below the longitudinal vision acquisition device (151) and the optical fiber (10), and the longitudinal acquisition imaging plate (16) is used for displaying overlook image information of the optical fiber (10).

5. An optical fiber untwisting apparatus as defined in claim 1, wherein:

the coiling device (12), the supporting device (14), the torsion device (13) and the monitoring device (15) are electrically connected with a control system, and the control system is used for receiving a feedback signal of the monitoring device (15) and sending a control signal to the coiling device (12), the supporting device (14) and the torsion device (13).

6. An optical fiber untwisting apparatus as defined in claim 5, wherein the coiling means (12) comprises:

the first rotating frame (121), the first rotating frame (121) is rotatably connected to the mounting plate (11), a coiler (125) is arranged on the first rotating frame (121), and the coiler (125) is used for coiling the optical fiber (10);

the first gear ring (122), the first gear ring (122) is sleeved on the outer side of the first rotating frame (121), and the first gear ring (122) is fixedly connected with the first rotating frame (121);

the first driving device (123), the first driving device (123) is fixedly connected with the mounting plate (11);

the first gear (124), first gear (124) suit is in the outside of the output shaft of first drive arrangement (123), first gear (124) and output shaft fixed connection, first gear (124) with first ring gear (122) mesh mutually, so as to drive first rotating frame (121) is along being parallel to the vertical plane rotation that the axis place of coiler (125) was located.

7. An optical fiber untwisting device according to claim 6, characterized in that the twisting device (13) comprises:

the second rotating frame (131), the second rotating frame (131) is rotatably connected to the mounting plate (11), a limiting device (135) is arranged on the second rotating frame (131), and the limiting device (135) is used for limiting the optical fiber (10);

the second gear ring (132), the second gear ring (132) is sleeved on the outer side of the second rotating frame (131), and the second gear ring (132) is fixedly connected with the second rotating frame (131);

the second driving device (133), the second driving device (133) is fixedly connected with the mounting plate (11);

the second gear (134), the said second gear (134) is fitted on the outside of the output shaft of the said second drive unit (133), the said second gear (134) is fixedly connected with output shaft, the said second gear (134) meshes with said second gear ring (132), in order to drive the said second rotating frame (131) to rotate along the vertical plane parallel to axis of the said coiler (125);

wherein the first driving device (123) and the second driving device (133) are electrically connected with the control system so as to enable the second rotating frame (131) to rotate synchronously with the first rotating frame (121).

8. The optical fiber untwisting device of claim 7, wherein the stop device (135) comprises:

a first conveying device (1351), wherein the first conveying device (1351) is arranged on the first rotating frame (121), and the first conveying device (1351) is used for supporting the optical fiber (10);

a second conveying device (1352), wherein the second conveying device (1352) is located above the first conveying device (1351), the optical fiber (10) passes through between the first conveying device (1351) and the second conveying device (1352), and the second conveying device (1352) is used for limiting the optical fiber (10);

the first linear expansion device (1353), the stiff end of first linear expansion device (1353) with first rotating frame (121) is connected, the flexible end of first linear expansion device (1353) with second conveyor (1352) is connected, first linear expansion device (1353) is used for adjusting second conveyor (1352) with distance between first conveyor (1351).

9. An optical fiber untwisting device as defined in claim 8, wherein the supporting means (14) comprises:

a third conveying device (141), the third conveying device (141) being arranged on the mounting plate (11), the third conveying device (141) being used for supporting an optical fiber (10);

a fourth conveying device (142), wherein the fourth conveying device (142) is positioned above the third conveying device (141), the optical fiber (10) passes through between the third conveying device (141) and the fourth conveying device (142), and the fourth conveying device (142) is used for limiting the optical fiber (10);

the second linear expansion device (143), the stiff end of second linear expansion device (143) with mounting panel (11) is connected, the flexible end of second linear expansion device (143) with fourth conveyor (142) is connected, second linear expansion device (143) are used for adjusting distance between fourth conveyor (142) with third conveyor (141).

10. The optical fiber untwisting apparatus as defined in any one of claims 1-9, further comprising:

the limiting piece (17), limiting piece (17) are arranged on the mounting plate (11), the limiting piece (17) is located between the torsion device (13) and the coiling device (12), and the limiting piece (17) is sleeved on the outer side of the optical fiber (10) and used for limiting the optical fiber (10).