Repair device for OVD deposition

Abstract

The utility model relates to a repairing device for OVD deposition, which comprises a rack, two optical fiber fixing pieces, a lifting blowtorch bracket, a deposition blowtorch and a repairing blowtorch piece, and the two optical fiber fixing pieces are oppositely and fixedly arranged and fixed on the rack; the lifting blowtorch is erected below the two optical fiber fixing pieces, and a horizontal moving device is arranged on the lifting blowtorch; the deposition blowtorch is arranged on a horizontal moving device of the lifting blowtorch bracket, is positioned under the optical fiber preform and can move along the axial direction of the optical fiber preform; the repairing blowtorch piece is arranged on one side of any optical fiber fixing piece, the deposition blowtorch can move to the position under the repairing blowtorch piece, and the repaired blowtorch piece is cleaned. The technical scheme of the application has the beneficial technical effects that when silicon dioxide particle precipitates exist on the deposition blowtorch and the deposition blowtorch moves to the position below the repair blowtorch part, the repair blowtorch part is turned on to clean the deposition blowtorch, so that cleaning of the deposition blowtorch is completed.

Description

Technical Field

[0001] The utility model relates to the field of optical fiber preform rods, in particular to a repair device for OVD deposition. Background Art

[0002] Optical VD (OVD) is a key process used in the production of optical fiber preforms. Its basic principle is to hydrolyze gaseous halides at high temperatures using a flame such as an oxyhydrogen or methane flame to produce glass oxide powder, which then precipitates on the surface of a rotating mandrel, forming a porous glass preform. A deposition torch sprays the gaseous feedstock onto the mandrel through an oxyhydrogen or methane flame, where it reacts and deposits to form a loose silica structure. The resulting silica particles are submicron in size, with individual temperatures around 1000°C. They travel at high speeds along the oxyhydrogen flame before adhering to the mandrel surface.

[0003] With the continuous development of technology, the OVD process has gradually evolved from single-torch deposition to simultaneous deposition with multiple torches, significantly improving production efficiency and preform quality. For example, CN117985933A provides a multi-torch OVD deposition method and optical fiber preform production equipment. This method solves the problem of existing torch feed pipes being unable to be effectively positioned during production. The movement of the torches can pull on the feed pipes, causing long lengths of feed pipes to become tangled and scattered on the ground.

[0004] However, some of the silica particles generated by the reaction will float in the air and eventually settle on the blowtorch, which will affect the temperature at which the silica particles are generated, and the silica loose body may break at any time due to stress.

[0005] Therefore, it is very necessary to provide a repair device for OVD deposition to solve the above technical problems. Utility Model Content

[0006] Based on the above description, the present invention provides a repair device for OVD deposition to solve the problem in the prior art that silicon dioxide particles are deposited on the blowtorch, affecting the temperature of silicon dioxide formation.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A repair device for OVD deposition includes a frame, an optical fiber fixing part, a lifting torch frame, a deposition torch and a repair torch component, wherein the two optical fiber fixing parts are relatively fixedly arranged and fixed on the frame for fixing the optical fiber preform rod; the lifting torch frame is arranged below the two optical fiber fixing parts, and a horizontal moving device is provided thereon; the deposition torch is arranged on the horizontal moving device of the lifting torch frame and is located directly below the optical fiber preform rod and can move axially along the optical fiber preform rod; the repair torch component is arranged on one side of any one of the optical fiber fixing parts, and the deposition torch can be moved directly below the repair torch component to be cleaned by the repair torch component.

[0008] Furthermore, the lifting torch stand includes a lower lifting support, a sliding frame body and an upper lifting support. The sliding frame body is slidably connected to the lower lifting support; the upper lifting support is slidably connected to the sliding frame body.

[0009] Furthermore, it also includes a lifting drive component, which includes a first joint, a second joint and a lifter, the first joint is fixedly connected to the side of the sliding frame body close to the lower lifting support; the second joint is fixedly connected to the side of the sliding frame body close to the upper lifting support; the lifter is provided with a fixed end and a telescopic end, the fixed end of the lifter is rotatably connected to the first joint, and the telescopic end of the lifter is rotatably connected to the second joint.

[0010] Furthermore, the horizontal moving device includes a blowtorch screw, a blowtorch support and a sliding motor, the blowtorch screw is rotatably connected to the upper lifting support; one end of the blowtorch support is threadedly connected to the blowtorch screw, and the other end of the blowtorch support is connected to the deposition blowtorch; the sliding motor is provided with a fixed end and a rotating end, the fixed end of the sliding motor is connected to the blowtorch support, and the rotating end of the sliding motor is connected to the blowtorch screw.

[0011] Furthermore, the repair blowtorch component includes a repair support base, a first movable frame, a second movable frame and a repair blowtorch. The repair support base is arranged on one side of the deposition blowtorch, and vertically arranged lifting guide rail grooves are provided on both sides of the repair support base; the two ends of the first movable frame are slidably connected to the lifting guide rail grooves, and the first movable frame is provided with a translation guide rail groove; the second movable frame is slidably connected to the translation guide rail groove; the repair blowtorch is connected to the second movable frame.

[0012] Furthermore, it also includes a first repair drive component, which includes a repair screw and a repair lifting motor. The repair screw is arranged corresponding to the lifting guide rail groove, the repair screw is rotatably connected to the repair support base, and the first movable frame is threadedly connected to the repair screw; the repair lifting motor is arranged corresponding to the repair screw, and the repair lifting motor is provided with a fixed end and a rotating end. The fixed end of the repair lifting motor is connected to the repair support base, and the rotating end of the repair lifting motor is connected to the repair screw.

[0013] Furthermore, the second movable frame is provided with a rack.

[0014] Furthermore, it also includes a repair second drive component, the repair second drive component includes a gear shaft and a repair translation motor, the gear shaft is engaged with the rack; the repair translation motor is provided with a fixed end and a rotating end, the fixed end of the repair translation motor is connected to the first movable frame, and the rotating end of the repair translation motor is connected to the gear shaft.

[0015] Furthermore, it also includes a limit bearing, the outer ring of the limit bearing is fixed on the first moving frame, and the gear shaft is connected to the inner ring of the limit bearing.

[0016] Furthermore, it also includes a photographic component, which is fixed on the optical fiber fixing component and is used to monitor the particle state parameters in the space where the nozzle of the deposition torch is located.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] At least one deposition torch is provided, each slidably connected to a lifting torch frame, thereby enabling processing of optical fibers on optical fiber fixtures. When silica particles are deposited on the deposition torch, the deposition torch is moved below the repair torch assembly, which activates the repair torch assembly to clean the deposition torch. This solves the problem in prior art where silica particles deposited on the torch affect the silica formation temperature, leading to the potential for stress-induced fracture of the silica loose body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure of a repair device for OVD deposition provided by an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 Enlarged schematic diagram of the middle Q;

[0021] Figure 3 A schematic diagram of the front structure of a repair device for OVD deposition provided by an embodiment of the present utility model;

[0022] Figure 4 A schematic top view of a repair device for OVD deposition provided by an embodiment of the present invention;

[0023] Figure 5 for Figure 4 Schematic diagram of the cross section at AA in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Frame;

[0026] 2. Optical fiber fixing parts;

[0027] 3. Lifting torch stand; 31. Lower lifting support; 32. Sliding frame; 33. Upper lifting support; 34. Lifting drive member; 341. First joint; 342. Second joint; 343. Lifter;

[0028] 4. Horizontal moving device; 41. Blowtorch screw; 42. Blowtorch support; 43. Sliding motor;

[0029] 5. Sedimentation blowtorch;

[0030] 6. Repair the blowtorch components; 61. Repair the support base; 611. Lifting guide rail; 62. First movable frame; 621. Translating guide rail; 63. Second movable frame; 631. Rack; 64. Repair the blowtorch; 65. Repair the first drive component; 651. Repair the screw; 652. Repair the lifting motor; 66. Repair the second drive component; 661. Gear shaft; 662. Repair the translating motor; 67. Limit bearing;

[0031] 7. Photographic documents. DETAILED DESCRIPTION

[0032] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0034] It will be understood that spatial relational terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be understood that in addition to the orientations shown in the figures, spatial relational terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, the element or feature described as "under" or "beneath" or "beneath" the other elements will be oriented as "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0035] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection" should be understood as "electrical connection", "communication connection", etc., if the connected circuits, modules, units, etc. can transmit electrical signals or data to each other.

[0036] When used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0037] like Figures 1 to 5 As shown, a repair device for OVD deposition includes a frame 1, an optical fiber fixing member 2, a lifting torch frame 3, a deposition torch 5 and a repair torch member 6. The two optical fiber fixing members 2 are relatively fixedly arranged and fixed on the frame 1, and are used to fix the optical fiber preform rod; the lifting torch frame 3 is arranged below the two optical fiber fixing members 2, and is provided with a horizontal moving device 4 thereon; the deposition torch 5 is arranged on the horizontal moving device 4 of the lifting torch frame 3, and is located directly below the optical fiber preform rod and can move axially along the optical fiber preform rod; the repair torch member 6 is arranged on one side of any one of the optical fiber fixing members 2, and the deposition torch 5 can be moved directly below the repair torch member 6 to be cleaned by the repair torch member 6.

[0038] In this embodiment, at least one deposition torch 5 is provided, each slidably connected to the elevating torch frame 3, thereby enabling processing of the optical fiber on the optical fiber fixture 2. When silica particles are deposited on the deposition torch 5, the deposition torch 5 is moved below the repair torch unit 6, which activates the repair torch unit 6 to clean the deposition torch 5. This solves the problem in prior art where silica particles deposited on the torch affect the silica formation temperature, leading to the potential for stress-induced fracture of the silica soot.

[0039] In some embodiments, the lifting torch stand 3 includes a lower lifting support 31 , a sliding frame 32 and an upper lifting support 33 . The sliding frame 32 is slidably connected to the lower lifting support 31 ; the upper lifting support 33 is slidably connected to the sliding frame 32 .

[0040] In some embodiments, a lifting drive member 34 is also included, and the lifting drive member 34 includes a first joint 341, a second joint 342 and a lifter 343. The first joint 341 is fixedly connected to the side of the sliding frame 32 close to the lower lifting support 31; the second joint 342 is fixedly connected to the side of the sliding frame 32 close to the upper lifting support 33; the lifter 343 is provided with a fixed end and a telescopic end, the fixed end of the lifter 343 is rotatably connected to the first joint 341, and the telescopic end of the lifter 343 is rotatably connected to the second joint 342.

[0041] In this embodiment, the sliding frame 32 is X-shaped and can rotate about its connection point. The upper ends of the X-shaped sliding frame 32 are slidably connected to the slideways of the upper lift support 33. The lower ends of the X-shaped sliding frame 32 are slidably connected to the slideways of the lower lift support 31.

[0042] At the same time, one end of the lifter 343 is connected to one end of the X-shaped sliding frame 32, and the other end of the lifter 343 is connected to the other end of the X-shaped sliding frame 32. When the lifter 343 is extended, the X-shaped sliding frame 32 is raised; when the lifter 343 is retracted, the X-shaped sliding frame 32 is lowered. Furthermore, the lifter 343 uses a Parker 32CCHDM4M30 hydraulic cylinder.

[0043] In some embodiments, the horizontal moving device 4 includes a blowtorch screw 41, a blowtorch support 42 and a sliding motor 43, wherein the blowtorch screw 41 is rotatably connected to the upper lifting support 33; one end of the blowtorch support 42 is threadedly connected to the blowtorch screw 41, and the other end of the blowtorch support 42 is connected to the deposition blowtorch 5; the sliding motor 43 is provided with a fixed end and a rotating end, wherein the fixed end of the sliding motor 43 is connected to the blowtorch support 42, and the rotating end of the sliding motor 43 is connected to the blowtorch screw 41.

[0044] In this embodiment, a strip-shaped through-hole is provided in the upper lift support 33. The torch support 42 passes through the strip-shaped through-hole and is threadedly connected to the torch screw 41. A sliding motor 43 drives the torch screw 41 to rotate, thereby driving the deposition torch 5 to move axially along the optical fiber preform. The sliding motor 43 is a servo motor.

[0045] In some embodiments, the repair blowtorch component 6 includes a repair support base 61, a first movable frame 62, a second movable frame 63 and a repair blowtorch 64. The repair support base 61 is arranged on one side of the deposition blowtorch 5, and vertically arranged lifting guide rail grooves 611 are provided on both sides of the repair support base 61; the two ends of the first movable frame 62 are slidably connected to the lifting guide rail grooves 611, and the first movable frame 62 is provided with a translation guide groove 621; the second movable frame 63 is slidably connected to the translation guide groove 621; the repair blowtorch 64 is connected to the second movable frame 63.

[0046] In this embodiment, both ends of the first movable frame 62 are slidably connected to the lifting guide rail slots 611, enabling the first movable frame 62 to move vertically within the repair support base 61. The second movable frame 63 is slidably connected to the first movable frame 62, thereby driving the repair torch 64 to move forward and backward within the repair support base 61. Furthermore, the optical fiber fixture 2 is connected to the repair support base 61.

[0047] In some embodiments, a first repair drive member 65 is also included, and the first repair drive member 65 includes a repair screw 651 and a repair lifting motor 652. The repair screw 651 is arranged corresponding to the lifting guide rail groove 611, and the repair screw 651 is rotatably connected to the repair support base 61, and the first movable frame 62 is threadedly connected to the repair screw 651; the repair lifting motor 652 is arranged corresponding to the repair screw 651, and the repair lifting motor 652 is provided with a fixed end and a rotating end. The fixed end of the repair lifting motor 652 is connected to the repair support base 61, and the rotating end of the repair lifting motor 652 is connected to the repair screw 651.

[0048] In this embodiment, the repair lifting motor 652 drives the repair screw 651 to rotate, thereby driving the first moving frame 62 to move in the up and down directions of the repair support base 61. In addition, the repair lifting motor 652 adopts a servo motor.

[0049] In some embodiments, a rack 631 is provided on the second movable frame 63 .

[0050] In some embodiments, a second repair drive member 66 is also included, and the second repair drive member 66 includes a gear shaft 661 and a repair translation motor 662, and the gear shaft 661 is engaged with the rack 631; the repair translation motor 662 is provided with a fixed end and a rotating end, and the fixed end of the repair translation motor 662 is connected to the first movable frame 62, and the rotating end of the repair translation motor 662 is connected to the gear shaft 661.

[0051] In some embodiments, a limiting bearing 67 is further included, the outer ring of the limiting bearing 67 is fixed on the first moving frame 62 , and the gear shaft 661 is connected to the inner ring of the limiting bearing 67 .

[0052] In this embodiment, the repair translation motor 662 is connected to the gear shaft 661, which is connected to the inner ring of the limit bearing 67 and meshes with the rack 631. Therefore, when the repair translation motor 662 rotates forward and backward, it can drive the second movable frame 63 to move forward and backward.

[0053] In some embodiments, a photographic element 7 is further included. The photographic element 7 is fixed on the optical fiber fixing element 2 and is used to monitor the particle state parameters in the space where the nozzle of the deposition torch 5 is located.

[0054] In this embodiment, the photographic element 7 is a particle monitor. The particle monitor is used to monitor the state parameters of particles floating in the space surrounding the fracture risk region r when the deposition torch 5 moves to the vicinity of the fracture risk region r. The particle monitor's camera is positioned toward the fracture risk region of the optical fiber preform. The camera and the deposition torch 5 are located at different circumferential positions on the optical fiber preform. The camera monitors images of product particles floating in the space surrounding the fracture risk region and determines particle state parameters through image analysis. These particle state parameters may include particle temperature, particle size, and particle velocity. It should be noted that a position sensor can be provided to detect the position of the deposition torch 5. When the deposition torch 5 moves to the vicinity of the fracture risk region or to a designated position on the optical fiber preform, the position sensor feeds a position signal back to the control unit, which then controls the particle monitor to monitor the particle state parameters in the space surrounding the fracture risk region of the optical fiber preform.

[0055] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0056] At least one deposition torch is provided, each slidably connected to a lifting torch frame, thereby enabling processing of optical fibers on optical fiber fixtures. When silica particles are deposited on the deposition torch, the deposition torch is moved below the repair torch assembly, which activates the repair torch assembly to clean the deposition torch. This solves the problem in prior art where silica particles deposited on the torch affect the silica formation temperature, leading to the potential for stress-induced fracture of the silica loose body.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A repair device for OVD deposition, characterized in that: include: Rack (1); Optical fiber fixing members (2), wherein the two optical fiber fixing members (2) are relatively fixedly arranged and fixed on the frame (1) and are used to fix the optical fiber preform; A lifting torch frame (3) is provided below the two optical fiber fixing members (2) and is provided with a horizontal moving device (4); A deposition torch (5) is provided on the horizontal moving device (4) of the lifting torch frame (3), is located directly below the optical fiber preform, and is capable of moving along the axial direction of the optical fiber preform; The repair torch component (6) is arranged on one side of any one of the optical fiber fixing components (2), and the deposition torch (5) can be moved to the bottom of the repair torch component (6) and cleaned by the repair torch component (6).

2. A repair device for OVD deposition according to claim 1, characterized in that: The lifting torch frame (3) comprises: Lower lifting support (31); A sliding frame (32) is slidably connected to the lower lifting support (31); An upper lifting support (33) is slidably connected to the sliding frame (32).

3. The repair device for OVD deposition according to claim 2, characterized in that: Also included is a lifting drive member (34), which includes: A first joint (341) fixedly connected to a side of the sliding frame (32) close to the lower lifting support (31); A second joint (342) is fixedly connected to a side of the sliding frame (32) close to the upper lifting support (33); The lifter (343) is provided with a fixed end and a telescopic end, wherein the fixed end of the lifter (343) is rotatably connected to the first joint (341), and the telescopic end of the lifter (343) is rotatably connected to the second joint (342).

4. The repair device for OVD deposition according to claim 2, characterized in that: The horizontal moving device (4) comprises: A blowtorch screw (41) is rotatably connected to the upper lifting support (33); a burner support (42), one end of which is threadedly connected to the burner screw (41) and the other end of which is connected to the deposition burner (5); A sliding motor (43) is provided with a fixed end and a rotating end, wherein the fixed end of the sliding motor (43) is connected to the blowtorch support (42), and the rotating end of the sliding motor (43) is connected to the blowtorch screw (41).

5. The repair device for OVD deposition according to claim 1, characterized in that: The repair blowtorch part (6) includes: A repair support base (61) is provided on one side of the deposition torch (5), and vertically arranged lifting guide rail grooves (611) are provided on both sides of the repair support base (61); A first movable frame (62), both ends of which are slidably connected to the lifting guide rail groove (611), and a translation guide rail groove (621) is provided on the first movable frame (62); A second movable frame (63) slidably connected to the translation guide rail groove (621); A repair blowtorch (64) is connected to the second movable frame (63).

6. The repair device for OVD deposition according to claim 5, characterized in that: Also included is repairing the first drive member (65), which includes: A repair screw (651) is provided corresponding to the lifting guide rail groove (611), the repair screw (651) is rotatably connected to the repair support base (61), and the first movable frame (62) is threadedly connected to the repair screw (651); A repair lifting motor (652) is provided corresponding to the repair screw (651), and the repair lifting motor (652) is provided with a fixed end and a rotating end, the fixed end of the repair lifting motor (652) is connected to the repair support base (61), and the rotating end of the repair lifting motor (652) is connected to the repair screw (651).

7. The repair device for OVD deposition according to claim 5, characterized in that: A rack (631) is provided on the second movable frame (63).

8. The repair device for OVD deposition according to claim 7, characterized in that: Also included is repairing the second drive member (66), which includes: a gear shaft (661) meshing with the rack (631); The repair translation motor (662) is provided with a fixed end and a rotating end, wherein the fixed end of the repair translation motor (662) is connected to the first movable frame (62), and the rotating end of the repair translation motor (662) is connected to the gear shaft (661).

9. The repair device for OVD deposition according to claim 8, characterized in that: It also includes a limiting bearing (67), the outer ring of the limiting bearing (67) is fixed on the first moving frame (62), and the gear shaft (661) is connected to the inner ring of the limiting bearing (67).

10. The repair device for OVD deposition according to claim 1, characterized in that: Also includes: A photographic element (7) is fixed on the optical fiber fixing element (2) and is used to monitor the particle state parameters in the space where the nozzle of the deposition torch (5) is located.

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