A fiber fusion processing platform heating device

Abstract

The application relates to the field of optical fiber manufacturing equipment, in particular to a heating device for an optical fiber fusion processing platform. The device comprises a fusion and stretching structure, which comprises a fixed sleeve connected to the middle part of the processing table and a stretching sleeve slidingly arranged at the two ends of the fixed sleeve; the middle part of the fixed sleeve is provided with a fusion cavity; the fusion cavity is provided with a heating and fusion structure; the stretching sleeve is provided with a traction and flow guide structure; the traction and flow guide structure can horizontally pull the optical fiber through the traction end, so that the optical fiber can be butt-jointed before fusion and stretched after fusion; the traction and flow guide structure can guide the air circulation in the fusion cavity through the flow guide end, so that the optical fiber can be cleaned before fusion and cooled after fusion; the positions of the traction end, the flow guide end and the heating and fusion end are staggered. Through linkage control of the components, the application realizes the full-process automation and intellectualization of the optical fiber from feeding, centering, cleaning, fusion, stretching to annealing, cooling and discharging, and improves the quality stability and production efficiency of the optical fiber fusion processing.

Description

Technical Field

[0001] This invention relates to the field of optical fiber manufacturing equipment, and more particularly to a heating device for an optical fiber melting and processing platform. Background Technology

[0002] In optical fiber communication, optical fiber sensing, and the fabrication of special optical fibers, it is necessary to precisely align the ends of two or more optical fibers and then heat and melt them to form a low-loss, high-strength connection or to achieve a conical region with a specific geometry. The temperature uniformity, thermal field stability, and process efficiency of the melting process directly affect the transmission loss, tensile strength, and yield of the finished optical fiber. Therefore, developing efficient, controllable, and environmentally friendly optical fiber melting equipment is of great significance for improving the overall level of optical fiber manufacturing.

[0003] Chinese patent application number CN110850526A discloses a heating device for an optical fiber melting processing platform, relating to the field of optical fiber processing equipment technology. The device includes a processing table, a conveying and fixing mechanism, a melting mechanism, a heat insulation mechanism, and a flue gas treatment mechanism. Two sets of conveying and fixing mechanisms are symmetrically fixed on both sides of the processing table. The melting mechanism is located in the middle of the processing table. The heat insulation mechanism is located on one side of the processing table. The heat insulation mechanism includes a moving component, a lifting component, a pressing component, and a heat insulation cover. The flue gas treatment mechanism is fixedly mounted on the processing table, and its working end is connected to the heat insulation cover.

[0004] Existing fiber optic fusion splicing equipment primarily achieves fusion splicing of single fiber groups, lacking the ability to process multiple groups simultaneously and lacking post-fusion stretching capabilities, thus failing to meet the requirements of forming processes such as fiber tapering. Furthermore, the absence of an online cleaning structure before fusion allows surface contaminants to easily affect splice quality. Cooling methods rely solely on natural heat dissipation or open-shroud cooling, resulting in low efficiency and residual thermal stress. Heating methods are limited, with insufficient flexibility in heat source movement, making it difficult to achieve a precise and uniform thermal field distribution along the fiber's circumference or axis. Each process is executed sequentially, lacking coordinated control, leading to long auxiliary times and slow processing cycles. Flue gas treatment relies solely on top negative pressure suction, lacking internal active purging and directional flow guidance, easily causing harmful gases to accumulate and escape. Therefore, existing equipment exhibits significant shortcomings in processing efficiency, process diversity, online cleaning, active cooling, thermal field uniformity, and coordinated action control. Summary of the Invention

[0005] To address the problems existing in the background technology, a heating device for an optical fiber melting and processing platform is proposed. Through the linkage control of various components, the entire process of optical fiber from feeding, alignment, cleaning, melting, stretching to annealing, cooling and unloading is automated and intelligent, thereby improving the quality stability and production efficiency of optical fiber melting and processing.

[0006] This invention proposes a heating device for an optical fiber fusion processing platform, comprising a processing table and multiple sets of fusion stretching structures arranged side-by-side on the processing table; the fusion stretching structure includes a fixed sleeve connected to the middle of the processing table and stretching sleeves slidably disposed at both ends of the fixed sleeve; a fusion cavity is provided in the middle of the fixed sleeve; a heating and fusion structure is provided inside the fusion cavity; a traction and flow guiding structure is provided inside the stretching sleeve; the traction and flow guiding structure, on the one hand, horizontally pulls the optical fiber through the traction end to achieve the purpose of pre-fusion splicing and post-fusion stretching of the optical fiber, and on the other hand, guides the air flow in the fusion cavity through the flow guiding end to achieve the purpose of pre-fusion cleaning and post-fusion cooling of the optical fiber; the positions of the traction end, flow guiding end, and heating and fusion end are staggered.

[0007] Preferably, the tails of the two sets of stretching sleeves are opposite each other and slide into the fixed sleeves respectively, connecting the two ends of the heating and melting structure. Each set of stretching sleeves has a support and a sliding plate connecting the support at the bottom of the sleeve head, and a feeding element is set at the center of the sleeve head. Both ends of the processing table are provided with a sliding groove and a sliding table slidably set on the sliding groove. The stretching sleeves of the multiple sets of melting and stretching structures are detachably mounted on the sliding table through the sliding plate, and the fixed sleeves of the multiple sets of melting and stretching structures are detachably mounted in the middle of the processing table through the fixing plate. The sliding direction of the sliding table is consistent with the pulling direction of the optical fiber.

[0008] Preferably, the traction and flow guiding structure includes multiple sets of flow guide frames located on the inner wall of the stretching sleeve, extending along the traction direction of the optical fiber and arranged in a mirror image; the flow guide frame is the flow guiding end, which, through the cooperation of pipes and fans, allows air to enter and exit towards the axis of the stretching sleeve; air enters through the flow guide frame on one side of the stretching sleeve, and air exits through the flow guide frame on the other side of the stretching sleeve.

[0009] Preferably, two sets of flow guides are provided, and two sets of traction components are provided between the two sets of flow guides in a mirror arrangement and sliding along the fiber optic traction direction.

[0010] Preferably, the guide frame is configured as a tile structure, positioned one above the other, and each set of guide frames has a sliding groove on both sides; the tension sleeve has a sliding groove on the left and right inner walls; the traction assembly includes a traction frame; the traction frame is provided with a slider that cooperates with the sliding groove and the sliding groove, and also provides a traction component.

[0011] Preferably, the traction frame is provided with an arc-shaped groove; the traction component is the traction end, including a movable seat that moves along the arc-shaped groove in an arc-shaped trajectory; one end of the telescopic rod is rotatably connected to the movable seat, and the other end is rotatably connected to the bottom end of the U-shaped frame; the two sides of the U-shaped frame are connected to the two ends of the rotating roller through the telescopic rod; the rotating roller is provided with two sets of limiting rings that move horizontally along its length direction.

[0012] Preferably, the feeding component includes a feeding plate located at the head of the stretching sleeve; a feeding hole is provided at the center of the feeding plate; a coaxially rotating feeding sleeve is provided in the feeding hole; multiple sets of retractable mounting platforms are provided on the inner wall of the feeding sleeve along the circumferential direction; and a pusher roller that rotates along the fiber optic traction direction is provided on each set of mounting platforms.

[0013] Preferably, the heating and melting structure includes a heating and melting ring located within a fixed sleeve and two sets of heating and melting elements installed at the upper and lower ends of the heating and melting ring; the heating and melting elements are the heating and melting ends.

[0014] Preferably, the heating and melting ring is coaxially arranged along the inner wall of the fixed sleeve, with its ring wall facing the stretching sleeves on both sides, and is provided with a guide slope; the two sets of heating and melting parts are arranged in a mirror image at the upper and lower ends of the heating and melting ring.

[0015] Preferably, the inner walls of the upper and lower rings of the heating and melting ring are respectively provided with arc-shaped grooves; the heating and melting component includes a movable seat two that moves along the arc-shaped groove two in an arc-shaped trajectory; an extension frame is provided on the movable seat two; a sliding frame is slidably disposed on the extension frame, and the sliding direction is consistent with the fiber optic traction direction; a telescopic rod three is provided on the sliding frame; a heating and melting head is provided at the end of the telescopic rod three.

[0016] Compared with existing technologies, this invention has the following beneficial technical effects: In the optical fiber manufacturing process, this invention sets up multiple sets of fusion stretching structures side by side on the same processing table, and uses a sliding table and a sliding groove to achieve synchronous approach and reverse movement of each set of stretching sleeves, ensuring that the displacement and speed of multiple optical fibers are completely consistent in core processes such as fusion splicing and stretching, thereby achieving high consistency in the tapered length and diameter of batch optical fibers, and significantly improving the production capacity and yield of optical fiber manufacturing; This invention sets up a coordinated and linked heating and melting structure and a traction and guiding structure: On the one hand, the traction and guiding structure not only undertakes the traction and stretching functions of the optical fiber, but also forms directional air convection in the closed cavity through one-sided air intake and one-sided air exhaust, efficiently cleaning the surface of the optical fiber before melting, and rapidly cooling and shaping the stretching area after melting; On the other hand, the heating and melting structure adopts a heating and melting head that can slide along an arc trajectory and axially, which can flexibly avoid positional interference between the traction end and the guiding end, accurately and uniformly heating the end of the optical fiber during fusion splicing, and moving with the melting area during stretching to maintain a suitable temperature gradient. The flow guide frame and the flow guide ramps within the heating and melting ring work together to form a dumbbell-shaped enhanced flow channel during the cooling stage, significantly improving convective heat transfer efficiency. Furthermore, the staggered design of the traction end, flow guide end, and heating and melting end allows cleaning, heating, traction, stretching, and cooling actions to be performed in parallel at the same station, avoiding motion interference and shortening process flow time. Through the coordinated control of each component, the entire process of optical fiber processing—from feeding, alignment, cleaning, melting, stretching to annealing, cooling, and unloading—is fully automated and intelligent, improving the quality stability and production efficiency of optical fiber melting processing. Attached Figure Description

[0017] Figure 1 A structural diagram of the heating device for the optical fiber melting and processing platform; Figure 2 This is a schematic diagram of a single-unit melt-stretched structure; Figure 3 This is a first cross-sectional view of the melt-stretched structure; Figure 4 This is a secondary cross-sectional view of the melt-stretched structure; Figure 5 This is a structural diagram of the tension sleeve; Figure 6 This is a sectional view of the tension sleeve; Figure 7 This is a structural diagram of the traction assembly; Figure 8 Here is a structural diagram of the feed component; Figure 9 This is a schematic diagram of the heated and melted structure; Figure 10 This is a structural diagram of the heated and molten part; Reference numerals in the attached drawings: 1. Processing table; 101. Slide groove; 102. Slide table; 2. Stretching sleeve; 201. Support; 202. Slide plate; 3. Fixing sleeve; 4. Heating and melting ring; 401. Guide slope; 402. Arc groove two; 5. Feeding component; 501. Feeding plate; 502. Feeding sleeve; 503. Mounting platform; 504. Push roller; 6. Heating and melting component; 601. Moving seat two; 602. Extension frame; 603. Sliding frame; 604. Telescopic rod three; 605. Heating and melting head; 7. Guide frame; 8. Traction assembly; 801. Traction frame; 802. Arc groove one; 803. Moving seat one; 804. Telescopic rod one; 805. U-shaped frame; 806. Telescopic rod two; 807. Rotating roller; 808. Limiting ring; 9. Pipeline. Detailed Implementation

[0018] Example 1, as Figures 1-4 As shown, this invention proposes a heating device for an optical fiber fusion processing platform, including a processing table 1 and multiple sets of fusion stretching structures arranged side by side on the processing table 1; the fusion stretching structure includes a fixed sleeve 3 connected to the middle of the processing table 1 and stretching sleeves 2 slidably disposed at both ends of the fixed sleeve 3; a fusion cavity is provided in the middle of the fixed sleeve 3; a heating and fusion structure is provided inside the fusion cavity; a traction and flow guiding structure is provided inside the stretching sleeve 2; the traction and flow guiding structure, on the one hand, horizontally pulls the optical fiber through the traction end to achieve the purpose of splicing the optical fiber before fusion and stretching it after fusion, and on the other hand, guides the air flow in the fusion cavity through the flow guiding end to achieve the purpose of cleaning the optical fiber before fusion and cooling it after fusion; the positions of the traction end, the flow guiding end, and the heating and fusion end are staggered.

[0019] The two sets of stretching sleeves 2 have their tails facing each other and slide into the fixed sleeves 3 respectively, connecting the two ends of the heating and melting structure. Each set of stretching sleeves 2 has a support 201 and a sliding plate 202 connecting the support 201 at the bottom of the sleeve head, and a feed element 5 is provided at the center of the sleeve head.

[0020] It should be further explained that both ends of the processing table 1 are provided with slide grooves 101 and slide tables 102 that are slidably arranged on the slide grooves 101; the stretching sleeves 2 of the multiple sets of melt stretching structures are detachably installed on the slide table 102 via the slide plate 202, and the fixing sleeves 3 of the multiple sets of melt stretching structures are detachably installed in the middle of the processing table 1 via the fixing plate.

[0021] It should be further noted that the sliding direction of the slide table 102 is consistent with the pulling direction of the optical fiber.

[0022] Before melting, the sliding tables 102 on both sides drive the stretching sleeves 2 on both sides of the multiple sets of melting and stretching structures to move synchronously closer. The optical fibers entering from both ends are pulled and cleaned by the relative movement of the traction and guiding structures on both sides until the ends of the optical fibers enter the melting chamber. After the multiple sets of heating and melting structures heat and melt the optical fibers, they are stretched synchronously. After melting, the traction and guiding structures on both sides move in opposite directions, and the two sets of stretching sleeves 2 move in opposite directions. The two sets of opposite movements work together to achieve precise and uniform stretching.

[0023] like Figures 5-6 As shown, the traction and flow guiding structure includes multiple sets of flow guide frames 7 located on the inner wall of the stretching sleeve 2, extending along the traction direction of the optical fiber and arranged in a mirror image; the flow guide frame 7 is the flow guiding end, which, through the cooperation of the pipe 9 and the fan, allows air to enter and exit towards the axis of the stretching sleeve 2; air enters from the flow guide frame 7 on one side of the stretching sleeve 2, and air exits from the flow guide frame 7 on the other side of the stretching sleeve 2.

[0024] It should be further noted that both the incoming and outgoing air are purified through filters.

[0025] With air intake on one side and air outlet on the other, air circulation is created within the inner wall space. When the two guiding structures move relative to each other, the two sets of optical fibers align along the axis of the stretching sleeve 2, and the adhering material is carried away by the flowing air after passing through the guiding frame 7. When the two guiding structures move in opposite directions, the molten optical fiber is stretched into place along the axis of the stretching sleeve 2 and cooled and shaped by the flowing air.

[0026] It should be further explained that the flow guide 7 is provided in two sets, and there are two sets of traction components 8 arranged in a mirror image and sliding along the fiber traction direction between the two sets of flow guide 7; the traction components 8 position the fiber to fiber from the left and right sides and pull it from the feed member 5 to the melting chamber.

[0027] It should be further explained that the flow guide 7 is set as a tile structure, with one above the other, and each set of flow guide 7 has a sliding groove on both sides; the inner walls of the stretch sleeve 2 are provided with sliding grooves.

[0028] like Figure 7 As shown, the traction assembly 8 includes a traction frame 801; the traction frame 801 is provided with a slider that cooperates with the first slide groove and the second slide groove, and is also provided with a traction component.

[0029] The traction assembly 8 slides along slide rail one and slide rail two, positioning, pulling, and stretching the optical fiber from both the left and right sides. During the movement of the traction assembly 8, the flow guide 7 is cleaned and cooled.

[0030] It should be further explained that the traction frame 801 is provided with an arc-shaped groove 802; the traction component is the traction end, including a movable seat 803 that moves along the arc-shaped groove 802 in an arc-shaped trajectory; one end of the telescopic rod 804 is rotatably connected to the movable seat 803, and the other end is rotatably connected to the bottom end of the U-shaped frame 805; the two sides of the U-shaped frame 805 are connected to the two ends of the rotating roller 807 through the telescopic rod 806; the rotating roller 807 is provided with two sets of limiting rings 808 that move horizontally along its length direction.

[0031] During the traction and stretching process, the traction component clamps and fixes the optical fiber from both sides through the cooperation of telescopic rod 804 and telescopic rod 806. During the docking process, the end of the optical fiber is pulled into the melting cavity by the rotation of telescopic rod 804 and U-shaped frame 805 and the sliding of movable seat 803 in an arc trajectory, and the docking angle is adjustable.

[0032] like Figure 8 As shown, the feeding component 5 includes a feeding plate 501 located at the head of the stretching sleeve 2; a feeding hole is provided at the center of the feeding plate 501; a coaxially rotating feeding sleeve 502 is provided in the feeding hole; multiple sets of retractable mounting platforms 503 are provided on the inner wall of the feeding sleeve 502 along the circumferential direction; each set of mounting platforms 503 is provided with a pusher roller 504 that rotates along the fiber optic traction direction.

[0033] The optical fibers to be processed are fed one by one into the feed holes on both sides of the multiple sets of fused stretching structures, either manually or by a robotic arm. The outer peripheral pusher roller 504 clamps the central optical fiber and adjusts its position by extending and retracting the mounting platform 503. The rotation of the pusher roller 504 guides the optical fiber between the rotating rollers 807, and combined with the movement of the traction component, feeding and traction are achieved.

[0034] like Figure 9 As shown, the heating and melting structure includes a heating and melting ring 4 located inside the fixed sleeve 3 and two sets of heating and melting components 6 installed at the upper and lower ends of the heating and melting ring 4; the heating and melting components 6 are the heating and melting ends. Since the traction components are arranged on the left and right, and the flow guide frame 7 and the heating and melting components 6 are arranged one above the other, the staggered positions ensure that the flow guidance and heating directions are consistent during the traction process while being offset from the traction end, so as to ensure the effect of flow guidance and heating.

[0035] It should be further explained that the heating and melting ring 4 is coaxially arranged along the inner wall of the fixed sleeve 3, and its ring wall faces the stretching sleeves 2 on both sides respectively, and is provided with a guide slope 401; the two sets of heating and melting elements 6 are arranged in a mirror image at the upper and lower ends of the heating and melting ring 4.

[0036] By setting the flow guide slope 401, a dumbbell-shaped flow path is formed when the flow guide frame 7 is working, which increases the effect of air circulation and accelerates the cooling of the heated molten part 6 and the optical fiber.

[0037] It should be further explained that arc-shaped grooves 402 are respectively provided on the inner walls of the upper and lower rings of the heating and melting ring 4.

[0038] like Figure 10 As shown, the heating and melting component 6 includes a movable seat 601 that moves along an arc-shaped groove 402; an extension frame 602 is provided on the movable seat 601; a sliding frame 603 is slidably disposed on the extension frame 602, and the sliding direction is consistent with the fiber optic traction direction; a telescopic rod 604 is provided on the sliding frame 603; and a heating and melting head 605 is provided at the end of the telescopic rod 604.

[0039] By setting the movable seat 601 to move along an arc trajectory and setting the sliding frame 603 to move along the fiber traction direction, the heating and melting process avoids the traction end while the heating and melting path has a certain degree of flexibility (e.g., moving in a V-shaped trajectory), and can move with the melting zone during the stretching process, thus expanding the heating and melting range. The heating and melting head 605 adopts resistance heating (such as tungsten wire or ceramic heating element) or laser diode heating. The distance between it and the fiber surface is adjusted by the telescopic rod 604 to achieve precise thermal action on the area of ​​the fiber to be melted.

[0040] Example 2: Based on the fiber optic melting processing platform heating device in the above examples, this example proposes a fiber optic melting processing method, with the following steps: S1. Equipment Initialization and Synchronous Alignment of Multiple Sets of Melt-Stretch Structures: In the optical fiber manufacturing process, firstly, according to processing requirements, a corresponding number of melt-stretch structures are detachably installed on the fixed sleeve 3 in the middle of the processing table 1 and the slide tables 102 on both sides via sliding plates 202. The control system is activated, causing all slide tables 102 to slide synchronously along the slide groove 101, driving the stretching sleeves 2 on both sides to move closer to the fixed sleeve 3 until the fixed sleeve 3 of each set of melt-stretch structures slides into place with the sleeve tails of the stretching sleeves 2 on both sides. At this time, the feed element 5, the traction guide structure, and the heating and melting ring 4 in each set of structures are all on the same axis, preparing for the parallel processing of multiple optical fibers in the future; S2. Automatic Fiber Optic Feeding and Centering Clamping: The ends of the optical fibers to be processed are fed into the feeding components 5 at the heads of the stretching sleeves 2 on both sides of each set of fused stretching structures, either manually or by a robotic arm. Each optical fiber passes through the feeding hole in the center of the feeding plate 501 and enters the coaxially rotating feeding sleeve 502. According to the diameter of the optical fiber, the extension and retraction of the mounting platform 503 is adjusted so that the pusher roller 504 clamps the optical fiber from the circumferential direction, and the rotation of the pusher roller 504 pushes the optical fiber smoothly into the stretching sleeve 2 along the axial direction. At the same time, the traction components 8 in the stretching sleeves 2 on both sides are activated. The traction frame 801 slides along the sliding groove 1 on both sides of the guide frame 7 and the sliding groove 2 on the inner wall of the stretching sleeve 2 via the slider, moving to the vicinity of the feeding end; the moving seat 803 in the traction end moves along the arc-shaped groove 802 in an arc-shaped trajectory, driving the U-shaped frame 805 and the rotating roller 807 to position and clamp the optical fiber from both sides, completing the initial traction of the optical fiber; S2. The traction guide structure and traction end work together to achieve air convection cleaning: During the process of the traction components 8 on both sides pulling the optical fiber towards the melting cavity, the traction guide structure is activated simultaneously. Specifically, the guide frame 7 inside one side of the stretching sleeve 2 is connected to the fan via pipe 9 and set to air intake mode, while the guide frame 7 inside the other side of the stretching sleeve 2 is set to air outlet mode. The air intake and exhaust directions of the guide frame 7 are towards the axis of the stretching sleeve 2, thus forming an airflow path that runs through the entire melting cavity within the fixed sleeve 3 and the stretching sleeve 2. When the ends of the optical fibers on both sides move relative to each other under the drive of the traction components 8 and pass through the area of ​​the guide frame 7, the flowing clean air (purified by a filter) carries away the deposits and dust on the surface of the optical fiber, achieving cleaning before melting. This cleaning process is synchronized with the movement of the traction end, and the fan flow rate and traction speed of multiple sets of melting and stretching structures are kept consistent, ensuring equal cleaning effect for each optical fiber. S4. Fiber End Assembly: After the fiber ends on both sides are pulled into the melting cavity in the middle of the fixed sleeve 3, the heating and melting structure begins preheating. Since the heating and melting component 6, the guide frame 7, and the pulling end are staggered vertically and horizontally (one heating and melting end is up and down, one pulling end is left and right, and one guide end is up and down but distributed in different axial positions), heating can be controlled independently without interfering with traction and guidance. The starting movable seat 601 moves along the arc-shaped groove 402 on the inner wall of the heating and melting ring 4 in an arc-shaped trajectory. Simultaneously, the sliding frame 603 slides linearly along the extension frame 602 in the fiber traction direction, precisely positioning the heating and melting head 605 directly above or to the side of the two fiber assembly point. The telescopic rod 604 extends to bring the heating and melting head 605 close to the fiber end (maintaining a 0.5-2mm gap) for local preheating, softening the fiber end but not yet melting it. During this process, the two pulling components 8 finely adjust the fiber axis alignment to ensure complete contact between the end faces of the two fibers. S5. Synchronous Melting and Stretching: After the fiber ends are successfully joined and accurately positioned, multiple sets of melting and stretching structures simultaneously initiate the heating and melting process. The heating and melting head 605 in each set heats up to the fiber's softening point, causing the joining area to melt. Simultaneously, the moving base 601 and sliding frame 603 drive the heating and melting head 605 in small reciprocating motions, ensuring a uniform heat distribution along the fiber's circumference and axial direction, preventing localized overheating. At the same time, the two sliding tables 102 drive the stretching sleeve 2 to move in the opposite direction, and the two traction components 8 move synchronously in opposite directions (i.e., the two sets of opposite movements cooperate), applying a uniform stretching force to the melting area. Because multiple sets of melting and stretching structures are installed side-by-side on the same processing table 1 and the sliding tables 102 are driven synchronously, the stretching speed and displacement of all fibers are completely consistent, ensuring the consistency of the tapered length and diameter of the batch of fibers. During the stretching process, the heating and melting head 605 follows the melting area synchronously within a certain range along the stretching direction, maintaining the temperature gradient of the melting area and preventing premature cooling that could lead to fiber breakage. S6. Post-melting annealing and cooling: After the optical fiber is stretched to the preset diameter, the heating fusion head 605 gradually reduces its power to perform annealing, eliminating internal thermal stress in the optical fiber. After annealing, the telescopic rod 3 604 retracts, and the moving seat 2 601 and sliding frame 603 reset. At this time, the traction and airflow guiding structures on both sides restart the air intake and exhaust modes (the direction can be switched or maintained), blowing room temperature or cooled clean air onto the stretched optical fiber surface through the airflow guide 7. Since the airflow guide 7 is arranged one above the other along the inner wall of the stretching sleeve 2, and the heating fusion ring 4 in the fixed sleeve 3 is provided with a guide slope 401, the airflow forms a dumbbell-shaped flow path, significantly enhancing the convective heat transfer efficiency and enabling the molten stretching zone to cool and solidify rapidly. After cooling, the traction assembly 8 releases the rotating roller 807, the pusher roller 504 reverses, and the processed optical fiber exits from the feed part 5 or is taken away by the next station. S7. Parallel Feeding and Equipment Reset: After all molten and stretched structures have cooled synchronously, the slide table 102 drives the stretching sleeves 2 on both sides to slide back to their initial positions. The traction frame 801 slides back to the sleeve end along the chute, the mounting platform 503 inside the feed sleeve 502 retracts, and the pusher roller 504 stops rotating. The control system records parameters such as temperature, stretching length, and speed during this optical fiber manufacturing process to prepare for the next processing cycle.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A heating device for an optical fiber melting processing platform, characterized in that, It includes a processing table (1) and multiple sets of melt stretching structures arranged side by side on the processing table (1); The melt stretching structure includes a fixed sleeve (3) connected to the middle of the processing table (1) and a stretching sleeve (2) slidably disposed at both ends of the fixed sleeve (3). A melting chamber is provided in the middle of the fixed sleeve (3); a heating and melting structure is provided inside the melting chamber; The tension sleeve (2) is provided with a traction guide structure; The traction and flow guiding structure, on the one hand, uses the traction end to horizontally pull the optical fiber, achieving the purpose of splicing the optical fiber before melting and stretching it after melting; on the other hand, it guides the air flow in the melting cavity through the flow guiding end, achieving the purpose of cleaning the optical fiber before melting and cooling it after melting. The positions of the traction end, the guide end, and the heating and melting end are staggered.

2. The heating device for the optical fiber melting and processing platform according to claim 1, characterized in that, The two sets of stretching sleeves (2) have their tails facing each other and slide into the fixed sleeve (3) respectively, connecting the two ends of the heating and melting structure. Each set of stretching sleeves (2) has a support (201) and a sliding plate (202) connecting the support (201) at the bottom of the sleeve head, and a feed piece (5) is provided at the center of the sleeve head. The processing table (1) is provided with slide grooves (101) at both ends and slide tables (102) that are slidably disposed on the slide grooves (101); The stretching sleeve (2) of the multi-set melt stretching structure is detachably mounted on the slide table (102) via the slide plate (202), and the fixing sleeve (3) of the multi-set melt stretching structure is detachably mounted in the middle of the processing table (1) via the fixing plate; The sliding direction of the slide (102) is consistent with the pulling direction of the optical fiber.

3. The heating device for the optical fiber melting processing platform according to claim 2, characterized in that, The traction guide structure includes multiple sets of guide frames (7) located on the inner wall of the tension sleeve (2), extending along the traction direction of the optical fiber and arranged in a mirror image. The guide frame (7) is the guide end. It works with the pipe (9) and the fan to allow air to enter and exit the tension sleeve (2) along its axis. Air enters through the guide frame (7) on one side of the tension sleeve (2) and exits through the guide frame (7) on the other side of the tension sleeve (2).

4. The heating device for the optical fiber melting processing platform according to claim 3, characterized in that, Two sets of flow guides (7) are provided, and two sets of traction components (8) are arranged in a mirror image and slide along the fiber optic traction direction between the two sets of flow guides (7).

5. The heating device for the optical fiber melting and processing platform according to claim 4, characterized in that, The guide frame (7) is set as a tile structure, with one above the other. Each guide frame (7) has a sliding groove on both sides; the inner walls of the stretch sleeve (2) are provided with sliding grooves. The traction assembly (8) includes a traction frame (801); the traction frame (801) is provided with a slider that cooperates with the first slide and the second slide, and is also provided with a traction component.

6. The heating device for the optical fiber melting processing platform according to claim 5, characterized in that, The traction frame (801) is provided with an arc-shaped groove (802); The traction component is the traction end, including a movable seat (803) that moves along the arc-shaped groove (802) in an arc-shaped trajectory; one end of the telescopic rod (804) is rotatably connected to the movable seat (803), and the other end is rotatably connected to the bottom end of the U-shaped frame (805); the two sides of the U-shaped frame (805) are connected to the two ends of the rotating roller (807) through the telescopic rod (806); The rotating roller (807) is provided with two sets of limiting rings (808) that move horizontally along its length.

7. The heating device for the optical fiber melting processing platform according to claim 1, characterized in that, The feeding component (5) includes a feeding plate (501) located at the head of the stretching sleeve (2); a feeding hole is provided at the center of the feeding plate (501); a coaxially rotating feeding sleeve (502) is provided in the feeding hole; multiple sets of retractable mounting platforms (503) are provided on the inner wall of the feeding sleeve (502) along the circumferential direction; and a pusher roller (504) that rotates along the fiber optic traction direction is provided on each set of mounting platforms (503).

8. The heating device for the optical fiber melting processing platform according to claim 1, characterized in that, The heating and melting structure includes a heating and melting ring (4) located inside the fixed sleeve (3) and two sets of heating and melting components (6) installed at the upper and lower ends of the heating and melting ring (4); the heating and melting components (6) are the heating and melting ends.

9. The heating device for the optical fiber melting processing platform according to claim 8, characterized in that, The heating and melting ring (4) is coaxially arranged along the inner wall of the fixed sleeve (3), with its ring wall facing the stretching sleeve (2) on both sides, and is provided with a guide slope (401); the two sets of heating and melting parts (6) are arranged in a mirror image at the upper and lower ends of the heating and melting ring (4).

10. The heating device for the optical fiber melting processing platform according to claim 9, characterized in that, Arc-shaped grooves (402) are respectively provided on the inner walls of the upper and lower rings of the heating and melting ring (4). The heating and melting component (6) includes a movable seat (601) that moves along an arc-shaped groove (402) in an arc-shaped trajectory; an extension frame (602) is provided on the movable seat (601); a sliding frame (603) is slidably disposed on the extension frame (602) and the sliding direction is consistent with the fiber optic pulling direction; a telescopic rod (604) is provided on the sliding frame (603); a heating and melting head (605) is provided at the end of the telescopic rod (604).

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