CN114442231B - Optical fiber tapering device in long cone area - Google Patents
Optical fiber tapering device in long cone area Download PDFInfo
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- CN114442231B CN114442231B CN202210079282.3A CN202210079282A CN114442231B CN 114442231 B CN114442231 B CN 114442231B CN 202210079282 A CN202210079282 A CN 202210079282A CN 114442231 B CN114442231 B CN 114442231B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
- G02B6/2835—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals formed or shaped by thermal treatment, e.g. couplers
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2856—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers formed or shaped by thermal heating means, e.g. splitting, branching and/or combining elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention discloses an optical fiber tapering device in a long taper area, which comprises a frame, wherein two ends of the frame are respectively provided with a fiber collecting module and a fiber releasing module, and an optical fiber moving path is formed between the fiber collecting module and the fiber releasing module; the optical fiber annealing furnace comprises an optical fiber moving path, a heating module for heating the optical fiber to be tapered, a belt pulley traction device for tapering the optical fiber and an annealing furnace for annealing the tapered optical fiber, wherein the heating module, the belt pulley traction device and the annealing furnace are sequentially arranged. The optical fiber tapering device can be used for easily tapering optical fibers with tapering areas of more than meter level, and can effectively eliminate or greatly reduce the problem of tapering asymmetry caused by the suspension of the optical fibers and greatly improve the light guide performance.
Description
Technical Field
The invention belongs to the field of optical fiber device production, and particularly relates to a height-controllable optical fiber tapering method.
Background
The optical fiber tapering belongs to the optical fiber post-processing technology, and the light guiding performance of the optical fiber can be changed by adjusting the radius of the optical fiber, so that the mode conversion and the energy transfer of an optical signal are realized. The important point is to precisely control the profile of the taper. Is widely applied to the fields related to optical communication and fiber laser.
In the prior art, the optical fiber is fixed on two displacement tables, the suspended part in the middle of the two displacement tables is heated by a heat source, so that the optical fiber is in a molten state, the displacement tables move in opposite directions to drive the optical fiber to stretch, and the tapered optical fiber is obtained by controlling the translation speed of the displacement tables and the temperature of a hot zone. After tapering, the fiber is divided into an unstretched region, a waist region, and a taper region. The diameter of the fiber in the unstretched region is unchanged; the diameter of the optical fiber in the waist region is uniform and is kept to be fluctuated within the range of the minimum diameter; the taper region optical fiber is changed from a large diameter to a small diameter, and the shape of the transition is uniform and excessive in straight fiber type, double-curved fiber type, exponential type and the like.
The optical fiber drawn in the prior art is influenced by the movement range of the displacement table, the length of the conical region is tens of centimeters at most, the change is not smooth enough, the uniformity of the waist region is low, and the light guiding performance of the conical optical fiber is unstable.
The prior art mainly has the following problems:
the length of the optical fiber taper area is limited by the one-dimensional motion travel of the displacement table, the formable taper area is limited in length, the optical fiber with the taper area with the length of more than meter level is difficult to draw, and the long taper area optical fiber has important application value in the field of optical fiber laser.
Because the gravity of the optical fiber is perpendicular to the stretching direction, when the stretching distance of the displacement table is too long, the taper is asymmetric due to the suspension of the optical fiber, and the light guide performance is affected.
Internal stress generated by heating the optical fiber to a molten state directly cools the optical fiber of the traditional displacement table type tapering in the air, and the shrinkage of different positions is different, so that the uniformity of the tapered optical fiber is greatly influenced.
The artificial optical fiber is easy to introduce impurities and disturbance, and the instability of the tapered optical fiber is increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an optical fiber tapering device and an optical fiber tapering method. The stretching speed of the belt pulley group traction device is matched with the rotation translation height of the fiber collecting and releasing device, and the fiber collecting and releasing device automatically collects fibers.
In order to achieve the purpose of the upper optical fiber tapering device, the invention adopts the following technical scheme:
the utility model provides a long awl district's optic fibre draws awl device, includes frame, its characterized in that: an upper fiber collecting and releasing module and a lower fiber collecting and releasing module are respectively arranged at two ends of the frame, and an optical fiber moving path is formed between the upper fiber collecting and releasing module and the lower fiber collecting and releasing module; the optical fiber annealing furnace comprises an optical fiber moving path, a heating module for heating the optical fiber to be tapered, a belt pulley traction device for tapering the optical fiber and an annealing furnace for annealing the tapered optical fiber, wherein the heating module, the belt pulley traction device and the annealing furnace are sequentially arranged.
Further: still include stop device, stop device sets up behind annealing stove, sets up between annealing stove and receipts fine module, and the stop device of setting can keep apart its rear tension sensing device and, the lateral displacement who brings, guarantees the toper and produces regional position accuracy, makes the lateral displacement of drawing the awl back optic fibre approach zero, guarantees the high accuracy of optic fibre drawing the awl.
Further: the tension sensing module is arranged behind the limiting device and is electrically connected with the control device. Thus, the tension sensor inputs the tension value signal into the control device, the control device carries out calculation processing according to an internal set software program, the optical fiber is judged to be in a tensioned or relaxed state, and then a control signal is output to adjust the running speed of the fiber receiving and releasing module.
Further: the belt pulley traction device comprises a left belt pulley and a right belt pulley, each belt pulley comprises a driving wheel, a driven wheel, a traction power device and a belt, and the belt pulley traction device is arranged on the frame through a supporting bottom plate; the driving wheel is connected with a traction power device, and the belt is arranged between the driving wheel and the driven wheel, and the traction power device drives the driving wheel to rotate so as to drive the belt to rotate; the working sections of the belts of the left belt pulley and the right belt pulley rotate in the same direction, and a tapering effect is generated on the optical fibers clamped between the working sections of the left belt pulley and the right belt pulley. The left belt pulley and the right belt pulley clamp the optical fibers between the left belt working section and the right belt working section, and the width of the optical fibers is adjustable so as to adapt to the optical fibers with various specifications.
Further: the tension sensing module comprises: the upper and lower fiber winding wheels are aligned in the horizontal direction, and the tension sensor is positioned between the two fiber winding wheels. The optical fiber sequentially bypasses the upper fiber winding wheel, the tension sensor and the lower fiber winding wheel, the tension sensor detects tension signals, and the speeds of the upper fiber winding and unwinding device and the lower fiber winding and unwinding device relative to the belt pulley traction device are adjusted by judging tension values; the upper and lower fiber winding wheels further limit the optical fibers in the horizontal direction.
Further: the upper fiber receiving module comprises: the device comprises a fixed plate, a translation platform, a translation power device, a rotary motor frame and a rotary fiber collecting and releasing barrel; the translation power device drives the translation platform to move forwards or backwards; the rotating motor is arranged on the rotating motor frame, the rotating fiber collecting and releasing barrel is fixed on the rotating motor shaft, and the rotating motor drives the rotating fiber collecting and releasing barrel to rotate. The rotating motor drives the rotating fiber collecting and releasing barrel to rotate so as to collect and release fibers, continuous and efficient tapering processing is realized, and functions and structures of the lower fiber collecting and releasing module are the same as those of the upper fiber collecting and releasing module.
Further: and a belt pulley traction device, an annealing furnace, a limiting device and a tension sensing module are sequentially arranged on the other side of the heating module to form an up-down symmetrical structure taking the heating module as a center. On the premise of keeping the arrangement sequence of the modules, the relative positions of the bottom plates of the modules can be adjusted and fixed in the vertical direction on the frame. Thus, the tapering processing capability can be increased, and higher tapering processing accuracy can be obtained.
Further: the upper fiber collecting and releasing module and the lower fiber collecting and releasing module have the same structure. This enhances interchangeability and the fiber to be tapered can be moved in two opposite ways to create the tapering effect.
Further, the distance between the belts of the left and right groups of pulleys can be adjusted on the pulley bottom plate through a hydraulic device. The distance between the working sections of the belts of the left belt pulley and the right belt pulley is adjusted so as to meet the requirements of tapering optical fibers of various specifications.
Compared with the prior art, the invention has the following advantages:
1. according to the vertical stretching device with the traction of the belt pulley group, the motor directly pulls the belt pulley to circularly roll so as to drive the optical fiber to stretch in two directions, so that the stretching length of the optical fiber is not limited by the stroke range. The direction of rotation of the pulley in the freely combined mode can form a tapered optical fiber of a special shape. The stretching speed of the belt pulley group traction device is matched with the rotation translation height of the fiber collecting and releasing device, so that automatic fiber collecting and releasing is realized.
2. The annealing furnace is introduced to carry out heat treatment, so that the influence of internal stress on the uniformity of the optical fiber in the optical fiber cooling process can be reduced. Therefore, the length of the taper area of the finished tapered optical fiber can be greatly increased, the uniformity of the taper area of the optical fiber is improved, and the design can finish the meter-level tapering of the optical fiber. Besides the basic single-fiber tapering function, the functions of an optical fiber combiner, preparation of an optical fiber coupler and the like can be realized.
3. The optical fiber tapering device can easily taper the optical fiber of the tapering area with the length of more than the meter level, can effectively eliminate fire, greatly reduce the problem of tapering asymmetry caused by the suspension of the optical fiber, and greatly improve the light guide performance.
4. The laser heating power is matched with the rotating power of the traction stretching device, so that the conical shape is controllable.
5. The laser heating device is matched with the annealing furnace device, the tapered optical fiber is formed from heating to cooling, and the forming precision of the tapered optical fiber can be further controlled.
6. And a tension sensing device is introduced, the speed difference between the belt pulley group traction device and the fiber winding and unwinding device is fed back, and the tension sensing device, the belt pulley group traction device and the fiber winding and unwinding device form a control closed loop, so that automatic fiber winding and unwinding after tapering is realized.
7. The transverse movement of the optical fiber in the horizontal direction is strictly limited, and a part of displacement in the front-rear direction is reduced by introducing a motor for slightly moving back and forth in the fiber collecting and releasing mechanism. And a limiting device is introduced to limit the displacement in the horizontal plane caused by the fiber winding and unwinding.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:
fig. 1 is a schematic structural view of an optical fiber tapering mechanism provided by the invention.
Fig. 2 is a schematic diagram of the front structure of the traction module of the belt pulley according to the present invention.
Fig. 3 is a schematic view of the back of the pulley traction module provided by the invention.
Fig. 4 is a schematic structural diagram of a tension sensor module according to the present invention
Fig. 5 is a schematic structural diagram of an up-down fiber winding and unwinding module provided by the invention.
FIG. 6 is a flow chart of a method for fabricating a tapered optical fiber according to the present invention.
In the figure: 1 a frame, 2 a heating module, 3 a belt pulley traction device, 4 an annealing furnace, 5 a limiting device, 6 a tension sensor module, 7 an upper fiber collecting and releasing module and 8 a lower fiber collecting and releasing module.
Detailed Description
In order to describe the technical content, the constructional features, the achieved objects and effects of the present invention in detail, the following description is made in connection with the embodiments and the accompanying drawings.
An embodiment of the present invention relates to an optical fiber tapering device, as shown in fig. 1, including: the device comprises a frame 1, a heating module 2, a belt pulley traction device 3, an annealing furnace 4, a limiting device 5, a tension sensing module 6, an upper fiber collecting and releasing module 7, a lower fiber collecting and releasing module 8 and a control device.
The optical fiber tapering device is characterized in that an upper fiber collecting and releasing module 7 and a lower fiber collecting and releasing module 8 are respectively arranged at two ends of a frame 1, optical fibers to be tapering are wound on the lower fiber collecting and releasing module 8, and the ends of the optical fibers are connected to the upper fiber collecting and releasing module 7; a fiber movement path is formed between the upper fiber receiving and releasing module 7 and the lower fiber receiving and releasing module 8. The optical fiber moving path is provided with a heating module 2 for heating an optical fiber to be tapered, a belt pulley traction device 3 for tapering the optical fiber, and an annealing furnace 4 for annealing the tapered optical fiber, wherein the heating module 2, the belt pulley traction device 3 and the annealing furnace 4 are sequentially arranged. The control device is used for controlling the on-off of power supply or signal of related components so as to generate the action or rotation speed required by the tapering, and can be realized by adopting the prior art.
In order to obtain higher precision, a limiting device 5 is arranged behind the annealing furnace 4, and the limiting device 5 is arranged between the annealing furnace 4 and the fiber collecting module; and a tension sensing module 6 is further arranged, the tension sensing module 6 is arranged behind the limiting device 5, and the tension sensing module 6 is electrically connected with the control device between the limiting device 5 and the fiber collecting module and inputs a sensing signal into the control device.
The heating module 2, the belt pulley traction device 3, the annealing furnace 4, the limiting device 5 and the tension sensing module 6 form a unilateral tapering device, and tapering treatment can be carried out on the optical fiber to be tapered, so that the treatment precision of the process requirement is achieved.
As shown in the figure, in order to obtain higher tapering precision, the second embodiment of the present invention is configured such that, on the other side of the heating module 2, a belt pulley traction device 3, an annealing furnace 4, a limiting device 5, a tension sensing module 6, and a lower fiber collecting and releasing module 8 are sequentially disposed, so as to form two belt pulley traction devices 3, annealing furnaces 4, limiting devices 5, tension sensing modules 6, and symmetrical upper fiber collecting and releasing modules 7 and lower fiber collecting and releasing modules 8, which are centered on the heating module 2. The tapering processing capability can be increased, and higher tapering processing precision can be obtained.
As shown in fig. 2, the pulley traction device 3 comprises a left pulley set and a right pulley set, and each pulley set comprises a supporting bottom plate 3.1, a driving wheel 3.2, a driven wheel 3.3, a traction power device 3.4, a belt 3.5 and a hydraulic block 3.6. The belt pulley traction device 3 is arranged on the frame 1 through the supporting bottom plate 3.1, the relative position of the belt pulley traction device in the vertical direction can be adjusted and fixed through the supporting bottom plate 3.1, the hydraulic speed 3.6 can adjust the left and right positions of the belt pulleys and is fixed, and the driving wheels and the driven wheels of the left and right groups of belt pulleys can adjust the horizontal relative position on the supporting bottom plate 3.1 so as to meet the tapering needs of optical fibers with various specifications and diameters. The driving wheel 3.2 is connected with the traction power device 3.4, and the belt 3.5 is arranged between the driving wheel 3.2 and the driven wheel 3.3, and the traction power device 3.4 drives the driving wheel to rotate so as to drive the belt to rotate. The working sections of the belts 3.5 of the left belt pulley and the right belt pulley rotate in the same direction, and a pulling acting force is generated on the optical fiber clamped between the working sections of the left belt and the right belt pulley, and a traction effect in the tapering process is generated.
The internal temperature of the annealing furnace 4 is constant, is higher than the room temperature and is lower than the temperature of the tapering hot zone. In the annealing furnace, the tapered optical fiber generates an annealing effect through the annealing furnace, and the internal stress is slowly released, so that the uniformity of a tapered region of the cooled optical fiber is improved.
In this embodiment, the limiting device 5 displays the position in the horizontal plane of the optical fiber by punching a positioning hole on the metal plate, so as to isolate the transverse displacement brought by the tension sensing device and the fiber collecting module behind the limiting device, ensure the horizontal position precision of the cone-shaped generating area, enable the movement on the horizontal plane of the optical fiber after tapering to be close to zero, and ensure the high precision of the tapering of the optical fiber.
The upper fiber winding and unwinding module 7 includes: 7.1 parts of fixed plate, 7.2 parts of translational power device, 7.3 parts of rotary motor, 7.4 parts of rotary motor frame and 7.5 parts of rotary fiber collecting and releasing barrel. The translation power device 7.2 drives the translation platform 7.6 to move, such as forward and backward through a screw-nut matching structure. The rotating motor is arranged on the rotating motor frame, the fiber collecting barrel is fixed on the rotating motor shaft, and the rotating motor drives the fiber collecting barrel to rotate. The fiber collecting barrel rotates to drive the optical fiber to be tapered to rotate, the upper fiber collecting and releasing module 7 combines translation and rotation, and the optical fiber is wound in or released along the track of the spiral fiber on the fiber collecting barrel synchronously with the traction speed. The lower fiber receiving and releasing module 8 may also have the same structure as the upper fiber receiving and releasing module 7, so that the efficiency can be improved.
The method of use of the present invention is described in detail below with reference to figures (1-3).
The fiber to be tapered is a bare fiber with a cladding diameter of 250 microns. A section of optical fiber with the length of 3 meters is taken, the upper end of the optical fiber is fixed on a fiber collecting barrel of an upper fiber releasing module 7, and the other end sequentially passes through an upper fiber winding wheel 6.2, a tension sensor 6.4 and a lower fiber winding wheel 6.3 of the tension sensing assembly; the transverse displacement of the optical fiber is limited in a smaller section through the limiting hole of the limiting component 5; passing through an annealing furnace 4; traction module 3 is pulled through the upper pulley; a heating module 2; a traction module 3 passing through the lower pulley; passing through an annealing furnace 4; a limiting hole 5 passing through the limiting component; the lower ends of the upper fiber winding wheel 6.2, the tension sensor 6.4 and the lower fiber winding wheel 6.3 which pass through the tension sensing assembly are fixed on a fiber collecting barrel of the lower fiber collecting and releasing module 8.
The distance between the upper belt pulley traction device and the lower belt pulley traction device is determined by the conical shape of the optical fiber and the heating power of the heating module. The distance between the belts at the left side and the right side is controlled to be 250 micrometers plus or minus 2 micrometers, and the optical fiber to be tapered is clamped.
The expected parameters for tapering the fiber were: the waist region is 0.5 m, the length of each tapered region is 1m, and the tapered parameters are 125 microns in inner diameter and 250 microns in outer diameter. The rotational speed of the pulley traction device was set to 0.6 mm/min, the thermal power output of the carbon dioxide laser was 1 milliwatt, and the spot size was 30 square microns.
After the setting, starting the tapering equipment, synchronously running a motor of the belt pulley traction device according to the set speed, detecting the tension in real time by the tension sensing device, and the tension receiving interval is as follows: and (5) adjusting the rotation translation speed of the upper fiber collecting and releasing device and the lower fiber collecting and releasing device to match the optical fiber stretching speed, wherein the pitch of the fiber collecting disc is 1mm when the rotation motor rotates for one circle and the translation motor moves forwards or backwards.
After the tapering is accomplished, heating module stop work at first, and belt pulley draw gear's motor stops rotating, and left and right sides belt pulley keeps compressing tightly and provides clamping force, and feedback tension sensing data after stopping rotating receive and releases fine module motor rotation tensioning optic fibre.
Depending on the requirements, a waist region optical fiber, a taper region optical fiber, a biconic optical fiber or a single taper optical fiber is required, and a sapphire blade is used to cut the optical fiber at a proper position. And then the fiber winding and unwinding device is rotated, and the optical fiber is wound back into the optical fiber barrel and taken out.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the technical solution, and those skilled in the art should understand that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the present invention, and all such modifications and equivalents are included in the scope of the claims.
Claims (4)
1. The utility model provides a long awl district's optic fibre draws awl device, includes mechanical mechanism and controlling means, its characterized in that: the mechanical mechanism comprises a frame (1), a heating module (2), a belt pulley traction device (3), an annealing furnace (4), a limiting device (5), a tension sensing module (6), an upper fiber collecting and releasing module (7) and a lower fiber collecting and releasing module (8); the control device comprises a cone drawing forming control module and a speed feedback control module;
an upper fiber collecting and releasing module (7) and a lower fiber collecting and releasing module (8) are respectively arranged at two ends of the frame (1), and an optical fiber moving path is formed between the upper fiber collecting and releasing module (7) and the lower fiber collecting and releasing module (8); the optical fiber drawing device comprises an optical fiber moving path, a heating module (2) for heating an optical fiber to be drawn, a belt pulley traction device (3) for drawing the optical fiber and an annealing furnace (4) for annealing the drawn optical fiber, wherein the heating module (2), the belt pulley traction device (3), the annealing furnace (4), a limiting device (5), a tension sensing module (6) and an upper fiber drawing and releasing module (7) are sequentially arranged;
a belt pulley traction device (3), an annealing furnace (4), a limiting device (5), a tension sensing module (6) and a lower fiber winding and unwinding module (8) are sequentially arranged on the other side of the heating module (2) to form an up-down symmetrical structure taking the heating module (2) as the center;
the limiting device (5) displays the position in the horizontal plane of the optical fiber in a mode of punching a positioning hole on the metal plate, so as to isolate the transverse displacement brought by the tension sensing device and the fiber collecting module behind the limiting device and ensure the horizontal position precision of the cone-shaped generating area;
the tension sensing module (6) comprises: a movable bottom plate (6.1) with a guide rail and a fiber winding wheel capable of moving on the movable bottom plate (6.1), wherein the movable bottom plate (6.1) is arranged on a frame (1), the fiber winding wheel comprises a fiber winding wheel plate, an upper fiber winding wheel (6.2) and a lower fiber winding wheel (6.3) which are aligned and placed on the fiber winding wheel plate in the vertical direction, and a tension sensor (6.4) positioned between the upper fiber winding wheel (6.2) and the lower fiber winding wheel (6.3); the optical fiber sequentially bypasses the upper fiber winding wheel (6.2), the tension sensor (6.4) and the lower fiber winding wheel (6.3), tension value signals are input into the control device according to the tension sensor (6.4), the control device performs calculation processing according to an internal set software program, the optical fiber is judged to be in a tensioning or loosening state, and then a control signal is output to adjust the running speeds of the upper fiber winding and unwinding module (7) and the lower fiber winding and unwinding module (8);
the cone drawing forming control module is connected with the heating module (2) and the belt pulley traction device (3), and the cone forming is controlled by controlling the heating power and the belt pulley stretching speed at different moments; the speed feedback control module is connected with the belt pulley traction device (3), the tension sensing module (6), the upper fiber collecting and releasing module (7) and the lower fiber collecting and releasing module (8), and the tension sensing module (6) adjusts the relative speeds of the belt pulley traction device (3), the upper fiber collecting and releasing module (7) and the lower fiber collecting and releasing module (8) according to the fed-back tension;
the belt pulley traction device (3) comprises a supporting bottom plate (3.1) with a guide rail, two groups of belt pulleys, a hydraulic block (3.6) and a hydraulic power module (3.7) which can move on the supporting bottom plate (3.1), the supporting bottom plate (3.1) is arranged on a frame (1), an optical fiber of a portion to be tapered is arranged between the two groups of belt pulleys, the hydraulic block (3.6) pushes the two groups of belt pulleys to move towards the center or two sides and is used for clamping or loosening the optical fiber, and the hydraulic power module (3.7) is used for providing power for the hydraulic block (3.6).
2. A long taper fiber tapering apparatus as defined in claim 1, wherein: the belt pulley include action wheel (3.2), from driving wheel (3.3), traction power device (3.4) and belt (3.5), traction power device (3.4) is connected to action wheel (3.2), belt (3.5) set up between action wheel (3.2) and from driving wheel (3.3), thereby traction power device (3.4) drive action wheel (3.2) rotate and drive belt (3.5) rotation, produce traction to the optic fibre of centre gripping between two sets of belt (3.5) operating section, upper and lower both sides traction device cooperation operation produces the tapering effect to optic fibre when producing relative movement.
3. A long taper fiber tapering apparatus as defined in claim 1 or 2, wherein: the upper fiber winding and unwinding module (7) comprises: the device comprises a fixed plate (7.1), a translation power device (7.2), a rotating motor (7.3), a rotating motor frame (7.4) and a rotating fiber collecting and releasing barrel (7.5); the fixed plate (7.1) is arranged on the frame (1), the translation power device (7.2) drives the translation platform (7.6) to move back and forth on the fixed plate (7.1), the rotating motor frame (7.4) is fixed on the translation platform (7.6), the rotating motor (7.3) and the rotating fiber collecting and releasing barrel (7.5) are arranged on the rotating motor frame (7.4), the rotating fiber collecting and releasing barrel (7.5) is connected with the rotating shaft of the rotating motor (7.3), and the rotating motor (7.3) drives the rotating fiber collecting and releasing barrel (7.5) to rotate.
4. A long taper area fiber tapering apparatus as defined in claim 3, wherein: the upper fiber collecting and releasing module (7) and the lower fiber collecting and releasing module (8) have the same structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210079282.3A CN114442231B (en) | 2022-01-24 | 2022-01-24 | Optical fiber tapering device in long cone area |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210079282.3A CN114442231B (en) | 2022-01-24 | 2022-01-24 | Optical fiber tapering device in long cone area |
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| CN114442231A CN114442231A (en) | 2022-05-06 |
| CN114442231B true CN114442231B (en) | 2023-09-01 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5011252A (en) * | 1986-11-14 | 1991-04-30 | The Commonwealth Of Australia | Fabrication of fibre optic components |
| US5216731A (en) * | 1991-10-15 | 1993-06-01 | Center For Innovative Technology | Fused biconical taper fiber optic coupler station and fabrication techniques |
| CN107473581A (en) * | 2017-09-14 | 2017-12-15 | 深圳市太赫兹科技创新研究院有限公司 | Optical fiber prick-drawing device and method |
| CN108008485A (en) * | 2016-11-01 | 2018-05-08 | 黑龙江傲立辅龙科技开发有限公司 | A kind of polarization maintaining optical fibre fused biconical taper pull control system |
| CN109761485A (en) * | 2019-01-28 | 2019-05-17 | 东北大学 | It is a kind of to prepare the device and method for drawing cone and/or helix core soft glass optical fiber |
| CN110160677A (en) * | 2019-05-21 | 2019-08-23 | 中国科学院上海光学精密机械研究所 | Non-contact optical fiber surface tension loads measuring device and measurement method |
| CN113620592A (en) * | 2020-05-06 | 2021-11-09 | 常州莱特康光电科技有限公司 | Optical fiber drawing equipment and optical fiber drawing method |
-
2022
- 2022-01-24 CN CN202210079282.3A patent/CN114442231B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5011252A (en) * | 1986-11-14 | 1991-04-30 | The Commonwealth Of Australia | Fabrication of fibre optic components |
| US5216731A (en) * | 1991-10-15 | 1993-06-01 | Center For Innovative Technology | Fused biconical taper fiber optic coupler station and fabrication techniques |
| CN108008485A (en) * | 2016-11-01 | 2018-05-08 | 黑龙江傲立辅龙科技开发有限公司 | A kind of polarization maintaining optical fibre fused biconical taper pull control system |
| CN107473581A (en) * | 2017-09-14 | 2017-12-15 | 深圳市太赫兹科技创新研究院有限公司 | Optical fiber prick-drawing device and method |
| CN109761485A (en) * | 2019-01-28 | 2019-05-17 | 东北大学 | It is a kind of to prepare the device and method for drawing cone and/or helix core soft glass optical fiber |
| CN110160677A (en) * | 2019-05-21 | 2019-08-23 | 中国科学院上海光学精密机械研究所 | Non-contact optical fiber surface tension loads measuring device and measurement method |
| CN113620592A (en) * | 2020-05-06 | 2021-11-09 | 常州莱特康光电科技有限公司 | Optical fiber drawing equipment and optical fiber drawing method |
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| CN114442231A (en) | 2022-05-06 |
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