Temperature-sensing optical fiber welding device

Abstract

The invention discloses a temperature-sensitive optical fiber welding device, and relates to the field of temperature-sensitive optical fibers, and the temperature-sensitive optical fiber welding device comprises a rack, an alignment welding assembly, a hot melting assembly, and two lifting assemblies. The aligning and welding assembly is located at the top of the rack, the aligning and welding assembly is provided with two aligning assemblies and two welding assemblies, and the aligning assemblies are provided with optical fiber placing positions; the hot melting assembly is located above the alignment assembly and comprises a hot melting device and a pushing assembly, the hot melting device is provided with a hot melting cavity, the bottom and the two sides of the hot melting device are open, and the pushing assembly is used for pushing a heat shrink tube arranged on the temperature sensing optical fiber in a sleeving mode into the hot melting cavity through the opening in one side of the hot melting device; the lifting assembly is located on the outer side of the alignment assembly and used for lifting the temperature sensing optical fiber into the hot melting cavity through the bottom opening of the hot melting device. According to the invention, automation of the welding process of the optical fiber welding device and the hot melting process of the heat shrink tube is realized, and the problem that a fiber core which is just welded is easy to damage due to manual operation is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of temperature-sensitive optical fibers, and in particular to a temperature-sensitive optical fiber fusion splicing device. Background Art

[0002] In the actual application of distributed temperature-sensitive optical fibers, there are problems such as the installation distance is too long or a certain section of the temperature-sensitive optical fiber is damaged and needs to be disassembled. In this case, two temperature-sensitive optical fibers need to be fused.

[0003] At present, there is a fiber fusion splicing device, which is provided with an alignment fusion splicing component and a hot melt component that are independent of each other. During use, it is necessary to manually remove the protective layer of the optical fiber, put a heat shrink tube on the outside of the optical fiber, and place the two exposed fiber cores on the alignment fusion splicing component respectively for alignment fusion splicing. After the fusion is completed, it is necessary to manually move the heat shrink tube to the fiber core fusion position, and move the optical fiber to the hot melt component to perform hot melting treatment on the heat shrink tube, so that the heat shrink tube tightly covers the exposed fiber core part for protection. In this process, since the alignment fusion splicing component and the hot melt component are independent of each other, after the two fiber cores are fused, it is necessary to manually move the fiber core and move the heat shrink tube. In this process, manual operation is likely to cause damage to the fiber core that has just been fused. Summary of the invention

[0004] The main purpose of the present invention is to provide a temperature-sensitive optical fiber fusion splicing device, which aims to automate the fusion splicing process of the optical fiber fusion splicing device and the hot melting process of the heat shrink tube, thereby avoiding the problem that manual operation may easily cause damage to the newly fused fiber core.

[0005] To achieve the above object, the temperature-sensitive optical fiber fusion splicing device proposed by the present invention comprises:

[0006] frame;

[0007] An alignment fusion assembly, the alignment fusion assembly is located on the top of the rack, the alignment fusion assembly is provided with two alignment assemblies and two fusion assemblies, and the alignment assembly is provided with an optical fiber placement position;

[0008] A hot melt assembly, the hot melt assembly is located above the alignment assembly, the hot melt assembly includes a hot melt device and a pushing assembly, the hot melt device is provided with a hot melt cavity, the bottom and two sides of the hot melt device are open, and the pushing assembly is used to push the heat shrink tube sleeved on the temperature-sensitive optical fiber into the hot melt cavity through one side opening of the hot melt device;

[0009] Two lifting components, the lifting components are located outside the alignment component, and the lifting components are used to lift the temperature-sensitive optical fiber into the hot-melt cavity through the bottom opening of the hot-melt device.

[0010] In one embodiment, the hot melt device is provided with two opening and closing doors. When the lifting assembly lifts the temperature-sensitive optical fiber, the opening and closing doors are opened, and when the lifting assembly is reset, the opening and closing doors are closed.

[0011] In one embodiment, a groove body is provided at the bottom of the hot melt device, and the opening and closing doors are slidably arranged in the groove body. The two opening and closing doors can slide in the direction of approaching or moving away from each other, and a reset spring is provided between the opening and closing doors and the side wall of the groove body. Wedge blocks are provided at both ends of the opening and closing doors. The lifting component includes two lifting bars. When the lifting bars are raised, the bottom inclined surface of the wedge block is pushed outward to open the two opening and closing doors. When the lifting component is raised to the highest position, the lifting bars are separated from the wedge block, and the two opening and closing doors are closed. When the lifting bars are lowered, the top inclined surface of the wedge block is pushed outward to open the two opening and closing doors.

[0012] In one embodiment, the openings on both sides of the hot melt device are circular openings, the diameter of one opening of the hot melt device is smaller than the diameter of the heat shrink tube, and the diameter of the other opening is equal to the diameter of the heat shrink tube.

[0013] In one embodiment, chamfers are provided on both side opening edges of the hot melt device.

[0014] In one embodiment, mounting positions are provided on both sides of the frame, and the lifting assembly further comprises:

[0015] An electric push rod, the electric push rod is located at the installation position;

[0016] A lifting platform, wherein the lifting platform is fixed to the driving shaft of the electric push rod, the two lifting bars are fixed to one side of the lifting platform, and a groove is provided on the top surface of the lifting platform;

[0017] A fixing frame, the fixing frame comprising a side plate and a top plate, the side plate being located at the top of the frame and at one side of the mounting position, and the top plate being fixed to the top of the side plate;

[0018] A slide rod, one end of which is fixed to the lifting platform, and the other end of which is slidably arranged on the top plate.

[0019] In one embodiment, the pushing assembly comprises:

[0020] A driving member, the driving member being located at one side of the fixing frame;

[0021] A guide bar, the guide bar is fixed to the driving member, a guide groove is provided at the bottom of the guide bar, and the guide bar is extended toward one side of the hot melt device and extends to an opening on one side of the hot melt device;

[0022] A pushing member is slidably disposed in the guide groove, the driving member is used to drive the pushing member to move along the guide groove toward the hot melt device, and the pushing member is used to push the heat shrink tube into the hot melt cavity.

[0023] In one embodiment, the bottom of the pushing member is provided with an inner concave surface.

[0024] In one embodiment, the alignment component comprises:

[0025] A bottom plate, a top surface of which is provided with a groove, and the bottom plate is movable to adjust and align the ends of the two temperature-sensitive optical fibers;

[0026] A cover plate, wherein the cover plate is arranged on the top of the base plate, a groove is arranged on the bottom surface of the cover plate, the cover plate can move along with the base plate, the groove of the top plate and the groove of the base plate are combined to form the optical fiber placement position, a rotating shaft is arranged on one side of the cover plate, and the cover plate can be rotated along the rotating shaft to open the top of the temperature-sensitive optical fiber.

[0027] In one embodiment, the lifting bar is located at the bottom of the cover plate and between the rotating shaft and the bottom plate. When the lifting bar is raised, the cover plate is pushed up to rotate the cover plate along the rotating shaft.

[0028] In the technical solution provided by the present invention, the temperature-sensitive optical fiber fusion splicing device includes a frame, an alignment fusion splicing component, a hot melt component, and two lifting components; the alignment fusion splicing component is located on the top of the frame, the alignment fusion splicing component is provided with two alignment components and two fusion splicing components, and the alignment component is provided with an optical fiber placement position; the hot melt component is located above the alignment component, the hot melt component includes a hot melt device and a pushing component, the hot melt device is provided with a hot melt cavity, the bottom and two sides of the hot melt device are open, and the pushing component is used to push the heat shrink tube sleeved on the temperature-sensitive optical fiber into the hot melt cavity through a side opening of the hot melt device; the lifting component is located on the outside of the alignment component, and the lifting component is used to lift the temperature-sensitive optical fiber into the hot melt cavity through the bottom opening of the hot melt device.

[0029] First, place the ends of the two temperature-sensitive optical fibers that need to be fused on the optical fiber placement position of the alignment component for fusion. After the fusion is completed, lift the fused temperature-sensitive optical fiber through the lifting component, so that the fusion point core of the temperature-sensitive optical fiber moves to the hot melt cavity of the hot melt device, and then start the pushing component to push the heat shrink tube on the temperature-sensitive optical fiber into the hot melt cavity through the opening on one side of the hot melt device, and then start the hot melt device for hot melting, so that the heat shrink tube tightly covers the exposed core part for protection, and finally lower the lifting component to take out the processed optical fiber. During the whole process, there is no need to manually move the core, nor is there any need to manually push the heat shrink tube to the exposed core part. All automatic processing is adopted to avoid the problem that manual operation easily causes damage to the newly fused core. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a temperature-sensitive optical fiber fusion splicing device provided by the present invention;

[0032] Figure 2 for Figure 1 An enlarged schematic diagram of part A;

[0033] Figure 3 It is a schematic diagram of the lifting state of the lifting component;

[0034] Figure 4 It is a three-dimensional exploded schematic diagram of the hot melt device.

[0035] Description of Figure Numbers:

[0036] 1000. Temperature-sensitive optical fiber fusion splicing device; 1. Rack; 2. Alignment fusion splicing assembly; 21. Alignment assembly; 211. Bottom plate; 212. Cover plate; 22. Fusion splicing assembly; 3. Hot-melt assembly; 31. Hot-melt device; 311. Opening and closing door; 312. Slot body; 313. Return spring; 314. Wedge block; 32. Pushing assembly; 321. Driving member; 322. Guide strip; 323. Pushing member; 4. Lifting assembly; 41. Lifting strip; 42. Electric push rod; 43. Lifting platform; 44. Fixed frame; 45. Sliding rod; 5. Temperature-sensitive optical fiber; 51. Fiber core; 52. Heat shrink tube.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] Since the alignment fusion assembly and the hot melt assembly of the optical fiber fusion device in the prior art are independent of each other, after the two fiber cores are fused, it is necessary to manually move the fiber cores and move the heat shrink tube. During this process, manual operation can easily cause problems such as damage to the newly fused fiber cores.

[0042] In order to solve this technical problem, the present invention provides a temperature-sensitive optical fiber 5 fusion splicing device 1000 to solve the above problem.

[0043] See also Figures 1 to 3 The temperature-sensitive optical fiber 5 fusion splicing device 1000 proposed in this solution includes:

[0044] Rack 1;

[0045] The alignment fusion assembly 222 is located at the top of the rack 1. The alignment fusion assembly 222 is provided with two alignment assemblies 21 and two fusion assemblies 22. The alignment assembly 21 is provided with an optical fiber placement position.

[0046] The hot melt assembly 3 is located above the alignment assembly 21. The hot melt assembly 3 includes a hot melt device 31 and a pushing assembly 32. The hot melt device 31 is provided with a hot melt cavity. The bottom and two sides of the hot melt device 31 are open. The pushing assembly 32 is used to push the heat shrink tube sleeved on the temperature-sensitive optical fiber 5 into the hot melt cavity through one side opening of the hot melt device 31.

[0047] Two lifting assemblies 4 , the lifting assemblies 4 are located outside the alignment assembly 21 , and the lifting assemblies 4 are used to lift the temperature-sensitive optical fiber 5 into the hot-melt cavity through the bottom opening of the hot-melt device 31 .

[0048] First, the ends of the two temperature-sensitive optical fibers 5 to be fused are placed on the optical fiber placement position of the alignment component 21 for fusion. After the fusion is completed, the fused temperature-sensitive optical fibers 5 are lifted by the lifting component 4, so that the fusion point fiber core 51 of the temperature-sensitive optical fiber 5 is moved to the hot melt cavity of the hot melt device 31, and then the pushing component 32 is started to push the heat shrink tube on the temperature-sensitive optical fiber 5 into the hot melt cavity through the opening on one side of the hot melt device 31, and then the hot melt device 31 is turned on for hot melting, so that the heat shrink tube tightly covers the exposed fiber core 51 part for protection, and finally the lifting component 4 is lowered to take out the processed optical fiber. During the whole process, there is no need to manually move the fiber core 51, nor is there any need to manually push the heat shrink tube to the exposed fiber core 51 part. All automatic processing is adopted to avoid the problem that manual operation easily causes damage to the newly fused fiber core 51.

[0049] See also Figures 2 to 4 In one embodiment of the present invention, the hot melt device 31 is provided with two opening and closing doors 311. When the lifting assembly 4 lifts the temperature-sensitive optical fiber 5, the opening and closing doors 311 are opened, and when the lifting assembly 4 is reset, the opening and closing doors 311 are closed. By providing the opening and closing doors 311, the hot melt cavity is ensured to be in a sealed state during the hot melt process, while ensuring that the temperature-sensitive optical fiber 5 can enter the hot melt cavity through the bottom opening of the hot melt device 31.

[0050] In this embodiment, a groove body 312 is provided at the bottom of the hot melt device 31, and the opening and closing doors 311 are slidably arranged in the groove body 312. The two opening and closing doors 311 can slide in the direction of approaching or moving away from each other. A return spring 313 is provided between the opening and closing doors 311 and the side wall of the groove body 312. Wedge blocks 314 are provided at both ends of the opening and closing doors 311. The lifting component 4 includes two lifting bars 41. When the lifting bars 41 are raised, the bottom inclined surface of the wedge block 314 is pushed outward to open the two opening and closing doors 311. When the lifting component 4 is raised to the highest position, the lifting bars 41 are separated from the wedge block 314, and the two opening and closing doors 311 are closed. When the lifting bars 41 are lowered, the top inclined surface of the wedge block 314 is pushed outward to open the two opening and closing doors 311. By setting wedge blocks 314 on both sides of the opening and closing door 311, the opening and closing of the opening and closing door 311 can be realized. The mechanical opening and closing has higher reliability, and the number of driving elements used in the device is reduced, thereby reducing product production costs and maintenance costs.

[0051] Please refer to the figure, in one embodiment of the present invention, the openings on both sides of the hot melt device 31 are circular openings, the diameter of the opening on one side of the hot melt device 31 is smaller than the diameter of the heat shrink tube, and the diameter of the opening on the other side is equal to the diameter of the heat shrink tube. When the heat shrink tube is pushed by the pushing component 32, it can enter through the opening on one side of the hot melt device 31.

[0052] In this embodiment, chamfers are provided on the opening edges of both sides of the hot melt device 31. The chamfers are provided to facilitate the heat shrink tube to be pushed into the hot melt cavity without being blocked by the openings on both sides of the hot melt device 31.

[0053] In one embodiment of the present invention, mounting positions are provided on both sides of the frame 1, and the lifting assembly 4 further includes:

[0054] The electric push rod 42 is located at the installation position;

[0055] A lifting platform 43, the lifting platform 43 is fixed to the driving shaft of the electric push rod 42, two lifting bars 41 are fixed to one side of the lifting platform 43, and a groove is provided on the top surface of the lifting platform 43;

[0056] A fixing frame 44, the fixing frame 44 includes a side plate and a top plate, the side plate is located at the top of the frame 1 and at one side of the installation position, and the top plate is fixed to the top of the side plate;

[0057] The slide bar 45 has one end fixed to the lifting platform 43 and the other end slidably disposed on the top plate.

[0058] The lifting platform 43 is lifted and lowered by setting an electric push rod 42 to lift the optical fiber. The lifting process is relatively stable and will not shake. In addition, a slide bar 45 is set to ensure the sliding stability of the lifting platform 43 when it is lifted and lowered.

[0059] See also Figure 2In one embodiment of the present invention, the pushing assembly 32 includes:

[0060] A driving member 321, the driving member 321 is located at one side of the fixing frame 44;

[0061] A guide bar 322, the guide bar 322 is fixed to the driving member 321, a guide groove is provided at the bottom of the guide bar 322, and the guide bar 322 is extended toward one side of the hot melt device 31 and extends to one side opening of the hot melt device 31;

[0062] The pushing member 323 is slidably disposed in the guide groove. The driving member 321 is used to drive the pushing member 323 to move along the guide groove toward the hot melt device 31. The pushing member 323 is used to push the heat shrink tube into the hot melt cavity.

[0063] The guide strip 322 is provided to guide the pushing member 323 , thereby ensuring that the pushing member 323 remains stable when pushing the heat shrink tube.

[0064] In this embodiment, the driving member 321 may be a cylinder or a conveyor belt structure.

[0065] In this embodiment, a concave surface is provided at the bottom of the pusher 323. With such a configuration, the bottom surface of the pusher 323 can be attached to the upper surface of the temperature-sensitive optical fiber 5, ensuring that one end surface of the heat shrink tube can be supported and pushed.

[0066] See also Figure 2 and Figure 3 In one embodiment of the present invention, the alignment component 21 includes:

[0067] A bottom plate 211, a groove is provided on the top surface of the bottom plate 211, and the bottom plate 211 is movable to adjust and align the ends of the two temperature-sensitive optical fibers 5;

[0068] The cover plate 212 is covered on the top of the base plate 211. A groove is provided on the bottom surface of the cover plate 212. The cover plate 212 can move with the base plate 211. The groove of the top plate and the groove of the base plate 211 are combined to form an optical fiber placement position. A rotating shaft is provided on one side of the cover plate 212. The cover plate 212 can rotate along the rotating shaft to open the top of the temperature-sensitive optical fiber 5.

[0069] The rotatable cover plate 212 is provided to facilitate the removal and insertion of the temperature-sensitive optical fiber 5 while ensuring the clamping stability.

[0070] In this embodiment, the lifting bar 41 is located at the bottom of the cover plate 212 and between the rotating shaft and the bottom plate 211. When the lifting bar 41 is lifted, the cover plate 212 is pushed up, so that the cover plate 212 rotates along the rotating shaft. With this arrangement, after the temperature-sensitive optical fiber 5 is fused, it is not necessary to manually open the cover plate 212 and then start the lifting assembly 4. The cover plate 212 can be opened by directly starting the lifting assembly 4.

[0071] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A temperature-sensitive optical fiber fusion splicing device, characterized in that: The temperature-sensitive optical fiber fusion splicing device comprises: frame; An alignment fusion assembly, the alignment fusion assembly is located on the top of the rack, the alignment fusion assembly is provided with two alignment assemblies and two fusion assemblies, and the alignment assembly is provided with an optical fiber placement position; A hot melt assembly, the hot melt assembly is located above the alignment assembly, the hot melt assembly includes a hot melt device and a pushing assembly, the hot melt device is provided with a hot melt cavity, the bottom and two sides of the hot melt device are open, and the pushing assembly is used to push the heat shrink tube sleeved on the temperature-sensitive optical fiber into the hot melt cavity through one side opening of the hot melt device; Two lifting components, the lifting components are located outside the alignment component, and the lifting components are used to lift the temperature-sensitive optical fiber into the hot-melt cavity through the bottom opening of the hot-melt device.

2. The temperature-sensitive optical fiber fusion splicing device according to claim 1, characterized in that: The hot melt device is provided with two opening and closing doors. When the lifting assembly lifts the temperature-sensitive optical fiber, the opening and closing doors are opened, and when the lifting assembly is reset, the opening and closing doors are closed.

3. The temperature-sensitive optical fiber fusion splicing device according to claim 2, characterized in that: A groove body is provided at the bottom of the hot melt device, and the opening and closing door is slidably arranged in the groove body. The two opening and closing doors can slide in the direction of approaching or moving away from each other. A reset spring is provided between the opening and closing door and the side wall of the groove body. Wedge blocks are provided at both ends of the opening and closing door. The lifting component includes two lifting bars. When the lifting bars are raised, the bottom inclined surface of the wedge block is pushed outward to open the two opening and closing doors. When the lifting component is raised to the highest position, the lifting bars are separated from the wedge blocks, and the two opening and closing doors are closed. When the lifting bars are lowered, the top inclined surface of the wedge block is pushed outward to open the two opening and closing doors.

4. The temperature-sensitive optical fiber fusion splicing device according to claim 3, characterized in that: The openings on both sides of the hot melt device are circular openings. The diameter of the opening on one side of the hot melt device is smaller than the diameter of the heat shrink tube, and the diameter of the opening on the other side is equal to the diameter of the heat shrink tube.

5. The temperature-sensitive optical fiber fusion splicing device according to claim 4, characterized in that: The opening edges on both sides of the hot melt device are provided with chamfers.

6. The temperature-sensitive optical fiber fusion splicing device according to claim 3, characterized in that: The two sides of the frame are provided with mounting positions, and the lifting assembly further comprises: An electric push rod, the electric push rod is located at the installation position; A lifting platform, wherein the lifting platform is fixed to the driving shaft of the electric push rod, the two lifting bars are fixed to one side of the lifting platform, and a groove is provided on the top surface of the lifting platform; A fixing frame, the fixing frame comprising a side plate and a top plate, the side plate being located at the top of the frame and at one side of the mounting position, and the top plate being fixed to the top of the side plate; A slide rod, one end of which is fixed to the lifting platform, and the other end of which is slidably arranged on the top plate.

7. The temperature-sensitive optical fiber fusion splicing device according to claim 6, characterized in that: The pushing component comprises: A driving member, the driving member being located at one side of the fixing frame; A guide bar, the guide bar is fixed to the driving member, a guide groove is provided at the bottom of the guide bar, and the guide bar is extended toward one side of the hot melt device and extends to an opening on one side of the hot melt device; A pushing member is slidably disposed in the guide groove, the driving member is used to drive the pushing member to move along the guide groove toward the hot melt device, and the pushing member is used to push the heat shrink tube into the hot melt cavity.

8. The temperature-sensitive optical fiber fusion splicing device according to claim 7, characterized in that: The bottom of the pushing member is provided with an inner concave surface.

9. The temperature-sensitive optical fiber fusion splicing device according to claim 6, characterized in that: The alignment component comprises: A bottom plate, a top surface of which is provided with a groove, and the bottom plate is movable to adjust and align the ends of the two temperature-sensitive optical fibers; A cover plate, wherein the cover plate is arranged on the top of the base plate, a groove is arranged on the bottom surface of the cover plate, the cover plate can move along with the base plate, the groove of the top plate and the groove of the base plate are combined to form the optical fiber placement position, a rotating shaft is arranged on one side of the cover plate, and the cover plate can be rotated along the rotating shaft to open the top of the temperature-sensitive optical fiber.

10. The temperature-sensitive optical fiber fusion splicing device according to claim 9, characterized in that: The lifting strip is located at the bottom of the cover plate and between the rotating shaft and the bottom plate. When the lifting strip is lifted, the cover plate is pushed up to make the cover plate rotate along the rotating shaft.

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