CN113701737B - Winding device and method of low-twist polarization-maintaining optical fiber ring - Google Patents
Winding device and method of low-twist polarization-maintaining optical fiber ring Download PDFInfo
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- CN113701737B CN113701737B CN202110917773.6A CN202110917773A CN113701737B CN 113701737 B CN113701737 B CN 113701737B CN 202110917773 A CN202110917773 A CN 202110917773A CN 113701737 B CN113701737 B CN 113701737B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
- G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
- G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
- G01C19/721—Details
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Abstract
The invention discloses a winding device and method of a low-twist polarization-maintaining optical fiber ring, and relates to the technical field of polarization-maintaining optical fiber production. The optical fiber correction device comprises a fiber collecting roller, a fiber releasing roller, a group of tension control mechanisms, a group of torsion detection mechanisms and an optical fiber correction assembly, wherein the group of tension control mechanisms are arranged between the fiber collecting roller and the fiber releasing roller, the group of torsion detection mechanisms are arranged between the group of tension control mechanisms, the optical fiber correction assembly is arranged between the group of torsion detection mechanisms, the optical fiber correction assembly comprises a flat pulley, a synchronous belt mechanism and a screw rod mechanism, and the synchronous belt mechanism comprises a first belt wheel and a second belt wheel. According to the invention, by designing a novel optical fiber correction assembly, the angle and speed of the optical fiber can be controlled, the torsion of the optical fiber can be corrected in real time, the torsion angle of the optical fiber is ensured to be within a certain range, the angular deviation of a fast axis and a slow axis of the optical fiber on a tool caused by the torsion of the optical fiber is avoided, and the optical fiber forming quality is improved.
Description
Technical Field
The invention belongs to the technical field of polarization maintaining optical fiber production, and particularly relates to a winding device and method of a low-twist polarization maintaining optical fiber ring.
Background
The inertial technology is a core technology with the functions of positioning and orienting, attitude control, inertial navigation and the like of various modern navigation, aviation, aerospace and land motion carriers, plays an increasingly important role in the fields of national defense and civil use, and the gyroscope is used for measuring the angular displacement and the angular velocity of a sensitive motion carrier relative to an inertial space and plays a key role in the performance of an inertial system.
The optical fiber loop is a component used for sensing Sagnac phase difference between two oppositely propagated light waves caused by input angular velocity in the optical fiber gyroscope, is a main factor influencing the performance of the optical fiber gyroscope, uses a polarization maintaining optical fiber, adopts a quadrupole symmetry or octopole symmetry winding method for winding, and is filled with special glue.
The polarization maintaining optical fiber can be twisted by a certain angle in the production and ring winding processes, so that optical fiber stress regions in the optical fiber ring are randomly arranged, the radial and axial magnetic sensitivity errors of the optical fiber ring are influenced, and the precision of the optical fiber ring is reduced.
The prior art has the following limitations:
1. the polarization maintaining fiber cannot avoid twisting in the production process, so that the fiber is slightly twisted.
2. In the winding process of the optical fiber ring, the optical fiber is wound to a fiber winding tool through a plurality of guide wheels and devices by a fiber winding disc, the deviation of the guide wheels and subsequent manual intervention can aggravate the torsion of the optical fiber, so that the fast axis and the slow axis of each optical fiber wound on the fiber winding tool have certain angle deviation, and the performance of the optical fiber ring is influenced.
3. The existing optical fiber torsion detection and untwisting method and device use a guide wheel or other untwisting rotary tables to correct the deflection of the optical fiber on the basis of identifying the torsion of the optical fiber, but in practical application, the arrangement method of an optical fiber ring in winding is not considered, and the method specifically comprises the following steps:
if a back-twist device is added between a fiber releasing disc and a fiber collecting tool, the back-twist device can apply a certain force on the optical fiber in a certain direction when correcting the deflection of the optical fiber, and the process can influence the fiber releasing speed of the optical fiber, so that the on-line tension of the optical fiber is changed.
The multi-stage winding method of the optical fiber ring requires that optical fibers are arranged in a certain sequence, the two fiber placing disks need to alternately place the optical fibers, and after the disks are replaced, the deflection angles of the optical fibers to be wound and the fast and slow axes of the optical fibers on the fiber collecting tool cannot be kept within a required range.
Therefore, the problem to be solved by workers in the field is to design the winding device and the method of the optical fiber ring, which enable the cat eye of each upper optical fiber of the optical fiber ring to be within a certain angle deviation range and ensure the stable tension of the optical fiber.
Disclosure of Invention
The invention aims to provide a winding device and method of a low-torsion polarization-maintaining optical fiber ring.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a winding device of a low-torsion polarization-maintaining optical fiber ring, which comprises a fiber collecting roller, a fiber releasing roller, a group of tension control mechanisms, a group of torsion detection mechanisms and an optical fiber correction assembly, wherein the group of tension control mechanisms are arranged between the fiber collecting roller and the fiber releasing roller, and the group of torsion detection mechanisms are arranged between the group of tension control mechanisms;
the optical fiber correction assembly is arranged between the torsion detection mechanisms;
the optical fiber correction assembly comprises a flat pulley, a synchronous belt mechanism and a lead screw mechanism;
the synchronous belt mechanism comprises a first belt wheel and a second belt wheel, a synchronous belt is arranged outside the first belt wheel and the second belt wheel, a tooth part is arranged on the inner side of the synchronous belt, the part, far away from the tooth part, of the inner side of the synchronous belt is of a straight surface structure, the outer sides of the first belt wheel and the second belt wheel are both in a gear ring shape, and the tooth parts of the first belt wheel and the second belt wheel are meshed;
the flat pulley is arranged at a position right below the first belt wheel, and a fiber passing channel is formed between the flat pulley and the synchronous belt;
the screw mechanism is arranged on the rear side of the first belt wheel, the moving end of the screw mechanism is fixed with the axle center of the first belt wheel, the servo motor is arranged on the rear side of the second belt wheel, and the output end of the servo motor is fixed with the axle center of the second belt wheel.
The fiber collecting roller, the fiber releasing roller, the group of tension control mechanisms, the group of torsion detection mechanisms and the optical fiber correction assembly are all fixed on the outer side of the support.
Furthermore, the screw mechanism comprises a stepping motor and a ball screw, the output end of the stepping motor is fixed to one end of the ball screw, an end rod is fixed to the other end of the ball screw, the end of the end rod is fixed to the center of the first pulley through a bearing, a threaded sleeve is in transmission connection with the ball screw, and the threaded sleeve is fixed to the outer side of the support.
Furthermore, fiber guide wheels are arranged between the two tension control mechanisms and the two torsion detection mechanisms, between one tension control mechanism and the fiber collecting roller, and between the other tension control mechanism and the fiber releasing roller, and the fiber guide wheels are fixed on the outer side of the support through a shaft body and a bearing.
Furthermore, a winding ring tool is arranged on the fiber collecting roller, a group of driving motors is fixed on the other side of the support, and the output ends of the driving motors are respectively connected with the end parts of the fiber collecting roller and the fiber placing roller.
Furthermore, a shaft sleeve is arranged at the axis of the flat pulley through a bearing, a rotating shaft is fixed in the shaft sleeve, and one end of the rotating shaft is fixed on the outer side of the support.
Furthermore, a rubber sleeve is arranged on the flat pulley, and the cross section of the rubber sleeve is of a U-shaped structure.
Further, the length of the tooth part is one sixth of the inner diameter of the synchronous belt, and the half of the outer circumference of the first belt pulley and the half of the outer circumference of the second belt pulley are consistent with the length of the tooth part.
Furthermore, the device also comprises a controller, and the driving motor, the torsion detection mechanism, the servo motor and the stepping motor are all electrically connected with the controller.
The invention relates to a winding method of a low-twist polarization-maintaining optical fiber ring, which comprises the following steps:
the SS01 halves a section of optical fiber to an optical fiber disk A and an optical fiber disk B, ensures the connection of the optical fiber between the optical fiber disk A and the optical fiber disk B, installs the optical fiber disk A on a fiber placing roller, and installs the optical fiber disk B and a fiber collecting tool on a fiber collecting roller;
after being led out by the optical fiber disc B, optical fibers connected between the SS02 optical fiber disc A and the optical fiber disc B pass through a tension control mechanism, a torsion detection mechanism, an optical fiber correction assembly and another torsion detection mechanism respectively, and then pass through another tension control mechanism to finally be wound on a winding tool on a fiber winding roller;
SS03 starts two driving motors, at this time, the fiber releasing disc releases the fiber at Sr/min, and the fiber collecting tool collects the fiber at proper speed;
when SS04 optical fibers pass through a flat pulley of the optical fiber correction assembly, the flat pulley is driven to rotate together, the optical fibers are wound to an auxiliary disc by the optical fiber winding tool until the marked optical fibers are wound to the optical fiber winding tool, then the optical fibers are fixed on the side wall of the tool, and looping is started;
when SS05 optical fiber is wound on a fiber collecting tool, a torsion detection mechanism measures torsion angles of the optical fiber on line, wherein the torsion angles are alpha A and alpha B respectively, and measures deflection angles beta of the two torsion angles;
SS06 transmits the sensed data to the controller, which can perform the following calculations:
the distance between the two torsion detection mechanisms is L1, the contact distance of the optical fiber passing through the connection part of the flat pulley and the synchronous belt is L2, the speed of the fiber releasing disc is Sr/min, and the radius of the fiber releasing disc is R1, so the advancing speed of the optical fiber is V1-2 pi R1S;
the radius of the optical fiber is R2, the length of the optical fiber needing to be twisted after passing through the optical fiber correction component is L3-2 pi R2 beta L2/360 DEG L1, and the correction time is T1-L2/V1;
therefore, in the optical fiber correction assembly, the branch speed of the synchronous belt perpendicular to the optical fiber running method is V2-L3/T1;
therefore, after the timing belt is deflected, the angle γ to the fiber traveling direction is arctan, and the velocity V3 is V2/sin γ.
SS07 twists reverse the real-time test of detection mechanism and twists reverse the angle, calculates in real time through the controller to thereby the speed of real-time adjustment hold-in range of servo motor's rotational speed can be controlled, thereby the position of the first band pulley of regulation of step motor can be controlled, thereby real-time adjustment hold-in range angle, thereby control the deviation of optic fibre angle of twisting.
And the SS08 controls the tension through two tension control mechanisms in the winding process, and adjusts the rotating speeds of the fiber collecting roller and the fiber releasing roller in real time to keep the integral fiber tension stable.
The invention has the following beneficial effects:
1. according to the invention, by designing a novel optical fiber correction assembly, the angle and speed of the optical fiber can be controlled, the torsion of the optical fiber can be corrected in real time, the torsion angle of the optical fiber is ensured to be within a certain range, the angular deviation of a fast axis and a slow axis of the optical fiber on a tool caused by the torsion of the optical fiber is avoided, and the optical fiber forming quality is improved.
2. The invention can ensure the stability of the front-end and rear-end tension in the optical fiber deflection correction process by arranging a group of tension control mechanisms and controlling the driving motors on the fiber collecting roller and the fiber releasing roller by the controller.
3. According to the invention, by designing the synchronous belt structure with the shorter tooth part, the problem that the angle of the synchronous belt is difficult to adjust due to the fact that the first belt wheel and the second belt wheel simultaneously generate meshing force with the synchronous belt is avoided, and the flexibility of angle adjustment of the synchronous belt is improved.
Of course, it is not necessary for any product to practice the invention to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a low-twist polarization maintaining fiber ring winding apparatus and method according to the present invention;
FIG. 2 is a schematic diagram of a fiber optic trim assembly;
in the drawings, the components represented by the respective reference numerals are listed below:
1-fiber collecting roller, 2-fiber releasing roller, 3-tension control mechanism, 4-torsion detection mechanism, 5-fiber correction assembly, 6-flat pulley, 7-synchronous belt mechanism, 8-lead screw mechanism, 9-bracket, 10-fiber guide wheel, 601-shaft sleeve, 602-rotating shaft, 603-rubber sleeve, 701-first belt pulley, 702-second belt pulley, 703-synchronous belt, 704-tooth part, 705-servo motor, 801-stepping motor, 802-ball screw, 803-end rod and 804-thread sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention is a winding apparatus for a low-twist polarization-maintaining fiber ring, including a fiber collecting roller 1, a fiber releasing roller 2, a set of tension control mechanisms 3, a set of twist detection mechanisms 4 and a fiber correction assembly 5, wherein the set of tension control mechanisms 3 is disposed between the fiber collecting roller 1 and the fiber releasing roller 2, and the set of twist detection mechanisms 4 is disposed between the set of tension control mechanisms 3;
the optical fiber correction assembly 5 is arranged between the group of torsion detection mechanisms 4;
the optical fiber correction assembly 5 comprises a flat pulley 6, a synchronous belt mechanism 7 and a screw rod mechanism 8;
the synchronous belt mechanism 7 comprises a first belt pulley 701 and a second belt pulley 702, a synchronous belt 703 is arranged outside the first belt pulley 701 and the second belt pulley 702, a tooth part 704 is arranged inside the synchronous belt 703, the part, far away from the tooth part 704, inside the synchronous belt 703 is of a flat surface structure, the outer sides of the first belt pulley 701 and the second belt pulley 702 are both in a gear ring shape, and the tooth parts 704 of the first belt pulley 701 and the second belt pulley 702 are meshed;
the flat pulley 6 is arranged at a position right below the first belt pulley 701, and a fiber penetrating channel is formed between the flat pulley 6 and the synchronous belt 703;
the screw mechanism 8 is arranged at the rear side of the first belt wheel 701, the moving end of the screw mechanism 8 is fixed with the axle center of the first belt wheel 701, the servo motor 705 is arranged at the rear side of the second belt wheel 702, and the output end of the servo motor 705 is fixed with the axle center of the second belt wheel 702.
As shown in fig. 1, the optical fiber correction device further comprises a support 9, and the fiber collecting roller 1, the fiber releasing roller 2, the group of tension control mechanisms 3, the group of torsion detection mechanisms 4 and the optical fiber correction assembly 5 are all fixed on the outer side of the support 9.
As shown in fig. 2, the screw mechanism 8 includes a stepping motor 801 and a ball screw 802, an output end of the stepping motor 801 is fixed to one end of the ball screw 802, an end rod 803 is fixed to the other end of the ball screw 802, an end of the end rod 803 is fixed to an axis of the first pulley 701 through a bearing, a threaded sleeve 804 is connected to the ball screw 802 in a transmission manner, and the threaded sleeve 804 is fixed to the outer side of the bracket 9.
As shown in fig. 1, fiber guide wheels 10 are respectively disposed between two force control mechanisms 3 and two torsion detection mechanisms 4, between one tension control mechanism 3 and the fiber take-up roller 1, and between the other tension control mechanism 3 and the fiber pay-off roller 2, and the fiber guide wheels 10 are fixed outside the bracket 9 through a shaft body and a bearing.
Wherein, receive and be equipped with the winding frock on the fine roller 1, support 9 opposite side is fixed with a set of driving motor, and a set of driving motor output is connected with receiving fine roller 1 and putting fine roller 2 end respectively.
As shown in fig. 1-2, a shaft sleeve 601 is disposed at the axis of the flat pulley 6 through a bearing, a rotating shaft 602 is fixed in the shaft sleeve 601, and one end of the rotating shaft 602 is fixed outside the bracket 9.
As shown in fig. 2, a rubber sleeve 603 is provided on the flat pulley 6, and the cross section of the rubber sleeve 603 is a U-shaped structure.
As shown in fig. 2, the length of the tooth portion 704 is one sixth of the inner diameter of the timing belt 703, and half of the outer circumference of each of the first pulley 701 and the second pulley 702 corresponds to the length of the tooth portion 704.
The device further comprises a controller, wherein the group of driving motors, the group of torsion detection mechanisms 4, the servo motor 705 and the stepping motor 801 are electrically connected with the controller.
The invention relates to a method for winding a low-torsion polarization-maintaining optical fiber ring, which comprises the following steps of:
the SS01 halves a section of optical fiber to an optical fiber disk A and an optical fiber disk B, ensures that the optical fiber between the optical fiber disk A and the optical fiber disk B is connected, installs the optical fiber disk A on the fiber placing roller 2, and installs the optical fiber disk B and the fiber collecting tool on the fiber collecting roller 1;
after being led out by the optical fiber disc B, optical fibers connected between the SS02 optical fiber disc A and the optical fiber disc B respectively pass through a tension control mechanism 3, a torsion detection mechanism 4, an optical fiber correction assembly 5 and another torsion detection mechanism 4, and then finally are wound on a winding tool on the fiber collecting roller 1 through another tension control mechanism 3;
SS03 starts two driving motors, at this time, the fiber releasing disc releases the fiber at Sr/min, and the fiber collecting tool collects the fiber at proper speed;
when the SS04 optical fiber passes through the flat pulley 6 of the optical fiber correction assembly 5, the flat pulley 6 is driven to rotate together, the optical fiber is wound to the auxiliary disc by the fiber winding tool until the marked optical fiber is wound to the fiber winding tool, and then the optical fiber is fixed on the side wall of the tool to start winding;
when the SS05 optical fiber is wound on a fiber collecting tool, the torsion detection mechanism 4 measures the torsion angles of the optical fiber on line, wherein the torsion angles are alpha A and alpha B respectively, and the deflection angles beta of the two torsion angles are measured;
SS06 transmits the sensed data to the controller, which can perform the following calculations:
the distance between the two torsion detection mechanisms 4 is L1, the optical fiber passes through the joint of the flat pulley 6 and the synchronous belt 703, the contact distance is L2, the speed of the fiber releasing disc is Sr/min, and the radius of the fiber releasing disc is R1, so the advancing speed of the optical fiber is V1-2 pi R1S;
the radius of the optical fiber is R2, the length of the optical fiber which needs to be twisted after passing through the optical fiber correction component 5 is L3 ═ 2 pi R2 beta L2/360 ° L1, and the correction time is T1 ═ L2/V1;
therefore, in the optical fiber correction assembly 5, the component speed of the synchronous belt 703 perpendicular to the optical fiber traveling method is V2 ═ L3/T1;
therefore, after the timing belt 703 is deflected, the angle γ to the fiber traveling direction is arctanV2/V1, and the speed V3 is V2/sin γ.
The SS07 torsion detection mechanism 4 tests the torsion angle in real time, calculates in real time through the controller, and can control the rotation speed of the servo motor 705 so as to adjust the speed of the synchronous belt 703 in real time, and can control the stepping motor 801 so as to adjust the position of the first pulley 701 so as to adjust the angle of the synchronous belt 703 in real time, thereby controlling the deviation of the optical fiber torsion angle.
SS08 is simultaneously in the coiling process, through two tension control mechanism 3 carry out tension control to adjust the rotational speed of receiving fine roller 1 and putting fine roller 2 in real time, make holistic optic fibre tension keep stable, be avoided the lateral force that receives when optic fibre passes through optic fibre correction assembly 5 to cause the unmatched problem of optic fibre speed with receiving fine and putting fine speed.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides a coiling device of low partial optic fibre ring of guaranteeing of turning round, is including receiving fine roller (1), putting fine roller (2), a set of tension control mechanism (3) and a set of detection mechanism (4) of twisting round, a set of tension control mechanism (3) set up receive fine roller (1) and put between fine roller (2), a set of it sets up between a set of tension control mechanism (3) to twist round detection mechanism (4), its characterized in that: also comprises an optical fiber correction component (5);
the optical fiber correction assembly (5) is arranged between a group of torsion detection mechanisms (4);
the optical fiber correction assembly (5) comprises a flat pulley (6), a synchronous belt mechanism (7) and a screw rod mechanism (8);
the synchronous belt mechanism (7) comprises a first belt wheel (701) and a second belt wheel (702), a synchronous belt (703) is arranged outside the first belt wheel (701) and the second belt wheel (702), a tooth part (704) is arranged inside the synchronous belt (703), the part, far away from the tooth part (704), of the inside of the synchronous belt (703) is of a straight surface structure, the outer sides of the first belt wheel (701) and the second belt wheel (702) are both in a gear ring shape, and the tooth parts (704) of the first belt wheel (701) and the second belt wheel (702) are meshed;
the flat pulley (6) is arranged at a position right below the first belt wheel (701), and a fiber penetrating channel is formed between the flat pulley (6) and the synchronous belt (703);
the screw mechanism (8) is arranged on the rear side of the first belt wheel (701), the moving end of the screw mechanism (8) is fixed to the axis of the first belt wheel (701), the servo motor (705) is arranged on the rear side of the second belt wheel (702), and the output end of the servo motor (705) is fixed to the axis of the second belt wheel (702).
2. The winding device of the low-torsion polarization-maintaining optical fiber ring is characterized by further comprising a support (9), wherein the fiber collecting roller (1), the fiber releasing roller (2), the group of tension control mechanisms (3), the group of torsion detection mechanisms (4) and the optical fiber correction assembly (5) are fixed on the outer side of the support (9).
3. The winding device of the low-torsion polarization-maintaining optical fiber ring according to claim 2, wherein the lead screw mechanism (8) comprises a stepping motor (801) and a ball screw (802), an output end of the stepping motor (801) is fixed with one end of the ball screw (802), the other end of the ball screw (802) is fixed with an end rod (803), an end of the end rod (803) is fixed at an axis of the first belt pulley (701) through a bearing, the ball screw (802) is in transmission connection with a threaded sleeve (804), and the threaded sleeve (804) is fixed at an outer side of the support (9).
4. The winding device of a low-torsion polarization-maintaining optical fiber ring according to claim 2, wherein fiber guiding wheels (10) are arranged between the two tension control mechanisms (3) and the two torsion detection mechanisms (4), between one tension control mechanism (3) and the fiber collecting roller (1), and between the other tension control mechanism (3) and the fiber releasing roller (2), and the fiber guiding wheels (10) are fixed outside the bracket (9) through shafts and bearings.
5. The winding device of the low-twist polarization-maintaining optical fiber ring as claimed in claim 3, wherein a ring winding tool is arranged on the fiber winding roller (1), a group of driving motors is fixed on the other side of the support (9), and output ends of the group of driving motors are respectively connected with the end parts of the fiber winding roller (1) and the fiber placing roller (2).
6. The winding device of the low-torsion polarization-maintaining optical fiber ring as claimed in claim 2, wherein a shaft sleeve (601) is arranged at the axis of the flat pulley (6) through a bearing, a rotating shaft (602) is fixed in the shaft sleeve (601), and one end of the rotating shaft (602) is fixed outside the bracket (9).
7. The winding device of a low-torsion polarization-maintaining optical fiber ring according to claim 1, wherein a rubber sleeve (603) is arranged on the flat pulley (6), and the cross section of the rubber sleeve (603) is of a U-shaped structure.
8. The winding device of a low-twist polarization-maintaining optical fiber ring according to claim 1, wherein the length of the tooth part (704) is one sixth of the inner diameter of the timing belt (703), and the half of the outer circumference of the first pulley (701) and the half of the outer circumference of the second pulley (702) are consistent with the length of the tooth part (704).
9. The winding device of a low-twist polarization-maintaining optical fiber ring as claimed in claim 5, further comprising a controller, wherein the set of driving motors, the set of twist detection mechanism (4), the servo motor (705) and the stepping motor (801) are electrically connected with the controller.
10. A method of using a device for winding a low-twist polarization-maintaining optical fiber ring according to any one of claims 1 to 9, comprising the steps of:
the SS01 halves a section of optical fiber to an optical fiber disk A and an optical fiber disk B, ensures that the optical fiber between the optical fiber disk A and the optical fiber disk B is connected, installs the optical fiber disk A on the fiber placing roller (2), and installs the optical fiber disk B and the fiber collecting tool on the fiber collecting roller (1);
after being led out by the optical fiber disc B, optical fibers connected between the SS02 optical fiber disc A and the optical fiber disc B respectively pass through a tension control mechanism (3), a torsion detection mechanism (4), an optical fiber correction assembly (5) and another torsion detection mechanism (4), and then pass through another tension control mechanism (3) to finally wind on a winding ring tool on a fiber collecting roller (1);
SS03 starts two driving motors, at this time, the fiber releasing disc releases the fiber at Sr/min, and the fiber collecting tool collects the fiber at proper speed;
when SS04 optical fibers pass through a flat pulley (6) of an optical fiber correction assembly (5), the flat pulley (6) is driven to rotate together, the optical fibers are wound to an auxiliary disc by a fiber winding tool until the marked optical fibers are wound to the fiber winding tool, then the optical fibers are fixed on the side wall of the tool, and looping is started;
when the SS05 optical fiber is wound on a fiber collecting tool, a torsion detection mechanism (4) measures torsion angles of the optical fiber on line, wherein the torsion angles are alpha A and alpha B respectively, and measures deflection angles beta of the two torsion angles;
SS06 transmits the sensed data to the controller, which can perform the following calculations:
the distance between the two torsion detection mechanisms (4) is L1, the optical fiber passes through the joint of the flat pulley (6) and the synchronous belt (703), the contact distance is L2, the speed of the fiber releasing disc is Sr/min, and the radius of the fiber releasing disc is R1, so the advancing speed of the optical fiber is V1=2 pi R1S;
the radius of the optical fiber is R2, the length of the optical fiber needing to be twisted after passing through the optical fiber correction component (5) is L3=2 π R2 β L2/360 ° L1, and the correction time is T1= L2/V1;
therefore, in the optical fiber correction assembly (5), the branch speed of the synchronous belt (703) perpendicular to the optical fiber traveling method is V2= L3/T1;
therefore, after the synchronous belt (703) deflects, the included angle gamma with the advancing direction of the optical fiber = arctan (V2/V1), and the speed V3= V2/sin gamma;
the SS07 torsion detection mechanism (4) tests the torsion angle in real time, calculates the torsion angle in real time through the controller, can control the rotating speed of the servo motor (705) so as to adjust the speed of the synchronous belt (703) in real time, and can control the stepping motor (801) so as to adjust the position of the first belt wheel (701), thereby adjusting the angle of the synchronous belt (703) in real time so as to control the deviation of the optical fiber torsion angle;
and the SS08 controls the tension through the two tension control mechanisms (3) in the winding process at the same time, and adjusts the rotating speed of the fiber collecting roller (1) and the fiber releasing roller (2) in real time to keep the integral optical fiber tension stable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110917773.6A CN113701737B (en) | 2021-08-11 | 2021-08-11 | Winding device and method of low-twist polarization-maintaining optical fiber ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110917773.6A CN113701737B (en) | 2021-08-11 | 2021-08-11 | Winding device and method of low-twist polarization-maintaining optical fiber ring |
Publications (2)
| Publication Number | Publication Date |
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| CN113701737A CN113701737A (en) | 2021-11-26 |
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| EP1357404A4 (en) * | 2001-01-30 | 2004-12-15 | Sumitomo Electric Industries | Method and apparatus for manufacturing optical fiber |
| CN2560922Y (en) * | 2002-04-24 | 2003-07-16 | 上海海蓝光通讯技术有限公司 | Optical-fiber annular symmetrical rewinder |
| CN1330552C (en) * | 2003-11-13 | 2007-08-08 | 北京航空航天大学 | Microcomputer controlled semi-automatic optical fibre circling machine |
| FR2967155B1 (en) * | 2010-11-08 | 2017-12-15 | Delachaux Sa | IMPROVED OPTICAL FIBER GUIDING DEVICE |
| CN102914300B (en) * | 2012-09-28 | 2016-08-24 | 武汉长盈通光电技术有限公司 | A kind of rotation ring winding machine structure |
| CN103558674A (en) * | 2013-10-28 | 2014-02-05 | 北京自动化控制设备研究所 | Automated device for eliminating torque of polarization maintaining optical fiber |
| CN104655058B (en) * | 2015-02-12 | 2017-08-25 | 浙江大学 | The apparatus and method that a kind of panda type polarization-preserving fiber reverses detection and back twist |
| CN108675045B (en) * | 2018-05-21 | 2019-10-25 | 烽火通信科技股份有限公司 | A kind of rewinding equipment for being manufactured without torsion polarization maintaining optical fibre |
| CN109974748A (en) * | 2019-03-21 | 2019-07-05 | 中国船舶重工集团公司第七0七研究所 | A kind of optic fiber gyroscope winding machine tenslator and method |
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