CN113777702B - Method and device for binding optical fiber after plate arrangement - Google Patents
Method and device for binding optical fiber after plate arrangement Download PDFInfo
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- CN113777702B CN113777702B CN202111039143.XA CN202111039143A CN113777702B CN 113777702 B CN113777702 B CN 113777702B CN 202111039143 A CN202111039143 A CN 202111039143A CN 113777702 B CN113777702 B CN 113777702B
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
- G02B6/06—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images
- G02B6/08—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images with fibre bundle in form of plate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention relates to a method and a device for binding optical fiber wires after plate arrangement, wherein the method comprises the following steps: acquiring state information of the optical fiber after plate arrangement and state information of a plate arrangement mold corresponding to the state information; determining binding positions for binding the optical fiber filaments after the plate arrangement and the length of a required binding piece according to the state information of the optical fiber filaments after the plate arrangement and the state information of the corresponding plate arrangement mold; the binding piece is a heat-shrinkable film; binding the optical fiber wires after the row plates in the direction perpendicular to the optical fiber wires at the binding position by using the binding piece, and kneading two ends of the binding piece together; and heating the binding piece to enable the binding piece to shrink by heating until the binding piece is completely attached to the optical fiber after the row plates, and binding firmly. The method adopts the heat shrinkage film to bind, increases the contact area of the binding piece and the optical fiber, and ensures the stability of the structure of the optical fiber strip plate.
Description
Technical Field
The invention relates to the field of manufacturing of optical fiber panels, in particular to a method and a device for binding optical fiber wires after plate arrangement.
Background
The optical fiber panel (hereinafter referred to as optical fiber panel) is an optical fiber element formed by processing thousands of optical fibers which are regularly and tightly arranged through the procedures of arranging plates, hot melt pressing, annealing, rough machining, finish machining and the like, and has the characteristics of high light transmission efficiency, small interstage coupling loss, clear and real image transmission, zero thickness and the like in optics. Fiber optic panels are widely used in a variety of cathode ray tubes, video cameras, CCD couplings, and other instruments and devices that require the transmission of images. The large-area fiber optic panel is a key device for manufacturing the large-field low-light-level imager. The application field is very wide: the product can be used in the medical field (such as X-ray machine), the industrial X-ray scanning field, the industrial X-ray detection field, the palm print scanning field and the like. With the development of scientific technology, the requirements of devices in these fields on imaging fields are continuously expanding, so that the development of larger-area optical fiber panels is increasingly important.
In the manufacture of fiber optic panels, lashing plates are an essential element between the row plates and the hot melt press. In the prior art, wires or wires are used for binding the optical fiber plates, the optical fiber wires are usually in prismatic shapes (such as quadrangular prism, hexagonal prism and the like), and the wires or wires are used for binding plates in the prior art, only stress is formed at the contact points of the wires and the prisms, and then the internal optical fiber wires are compressed through pressure conduction among the optical fiber wires, so that the stability of the plate arrangement structure of the whole optical fiber plate is maintained. The wire material or the wire rod is in point or line contact with the optical fiber wires at the edge of the optical fiber plate, and the closer to the optical fiber wires at the center, the higher the risk of relative sliding and loosening is, the sliding and loosening of the internal optical fiber wire array plate structure is easy to occur before the optical fiber plate enters the hot melt pressing process, so that the optical fiber image transmission element cannot be normally used. And wire or wire bundling plates in the prior art need to be operated manually, the difference of tightness of bundling plates of different people inevitably leads to the instability of the internal structure of the optical fiber panel product, thereby influencing the quality of the final optical fiber panel product and having low working efficiency.
Disclosure of Invention
The invention mainly aims to provide a method and a device for binding optical fiber wires after arranging plates, which aims to solve the technical problems that the thermal shrinkage film is adopted to bind the optical fiber wires, so that the contact area between a binding piece and the optical fiber wires is increased, the stability of the structure of the optical fiber wire arranging plates is ensured, and the production loss caused by loose sliding of the structure of the optical fiber wire arranging plates is reduced.
The aim and the technical problems of the invention are realized by adopting the following technical proposal. According to the invention, a method for binding optical fiber after plate arrangement comprises the following steps:
acquiring state information of the optical fiber after plate arrangement and state information of a plate arrangement mold corresponding to the state information;
determining binding positions for binding the optical fiber filaments after the plate arrangement and the length of a required binding piece according to the state information of the optical fiber filaments after the plate arrangement and the state information of the corresponding plate arrangement mold; the binding piece is a heat-shrinkable film;
binding the optical fiber wires after the row plates in the direction perpendicular to the optical fiber wires at the binding position by using the binding piece, and kneading two ends of the binding piece together;
And heating the binding piece to enable the binding piece to shrink by heating until the binding piece is completely attached to the optical fiber after the row plates, and binding firmly.
The aim and the technical problems of the invention can be further realized by adopting the following technical measures.
Preferably, in the method for binding the optical fiber filaments after the arrangement, the heat shrinkage temperature of the heat shrinkage film is 80-100 ℃ and the heat shrinkage rate is 1-2%.
Preferably, in the method for binding the optical fiber filaments after the arrangement, the heat-shrinkable film is a silicone film modified by cage-type oligomeric silsesquioxane, a fluororubber heat-shrinkable film or a polytetrafluoroethylene heat-shrinkable film.
Preferably, the method for binding the optical fiber after the arrangement plate, wherein the heat shrinkage film is a cage-type oligomeric silsesquioxane modified silica gel film, and the preparation method of the cage-type oligomeric silsesquioxane modified silica gel film comprises the following steps: under the condition of stirring, sequentially adding the cage-type oligomeric silsesquioxane and the heat conducting filler into vinyl silicone rubber, uniformly mixing, pressing into a film, and then curing for 2-6 hours at the temperature of 40-60 ℃ to obtain the cage-type oligomeric silsesquioxane modified silicone film.
Preferably, the method for binding the optical fiber after the plate arrangement comprises 80-100 parts by weight of vinyl silicone rubber, 10-30 parts by weight of cage-type oligomeric silsesquioxane and 5-10 parts by weight of heat conducting filler.
Preferably, the method for binding the optical fiber after the plate arrangement is adopted, wherein the heat conducting filler is one or more selected from boron nitride, aluminum nitride and zinc oxide.
Preferably, in the method for binding the optical fiber filaments after being arranged, the thickness of the heat shrinkage film is 0.8-1.0mm, the width of the heat shrinkage film is 0.5-1 times of the perimeter of the cross section of the optical fiber filaments after being arranged, and the length of the heat shrinkage film is 1.2-1.5 times of the perimeter of the cross section of the optical fiber filaments after being arranged.
Preferably, the method for bundling the optical fiber after the arrangement plate comprises the steps of heating by radiation, wherein the heating rate of the radiation heating is 5-10 ℃/min
Preferably, the method for bundling optical fiber after arranging the plates, wherein the state information of the optical fiber after arranging the plates comprises: the arrangement structure and the size information of the optical fiber after the arrangement are displayed;
the state information of the plate arranging die comprises: shape and size information of the gang board mold. The aim of the invention and the technical problems are also achieved by adopting the following technical proposal. According to the invention, a device for binding optical fiber after plate arrangement comprises:
The acquisition unit is used for acquiring the state information of the optical fiber after the plate arrangement and the state information of the plate arrangement mold corresponding to the state information;
the determining unit is used for determining binding positions and the lengths of required binding pieces according to the state information of the optical fiber wires after the plate arrangement and the state information of the plate arrangement mold corresponding to the state information; the binding piece is a heat-shrinkable film;
a binding unit for binding the optical fiber filaments after the row plates in a direction perpendicular to the optical fiber filaments at the binding position by using the binding member, and kneading both ends of the binding member together;
and the heating unit is used for heating the binding piece to enable the binding piece to shrink by heating until the binding piece is completely attached to the optical fiber wires behind the row plates, and the binding is firm.
By means of the technical scheme, the method and the device for binding the optical fiber after the plate arrangement have at least the following advantages:
1. according to the invention, the thermal shrinkage film is adopted to bind the optical fiber wires as the binding pieces in the preparation process of the optical fiber panel, and after the thermal shrinkage film is heated and contracted, the thermal shrinkage film is completely attached to the periphery of the optical fiber wires and firmly binds the optical fiber wires, so that the complete attachment between the binding pieces and the bound optical fiber plates is realized, the contact area between the binding pieces and the optical fiber wires is increased, the stability of the structure of the optical fiber wire row plate is ensured, the production loss caused by loose sliding of the structure of the optical fiber wire row plate is reduced, and the quality and the stability of the product are improved.
2. In the invention, the cage-type oligomeric silsesquioxane modified silica gel film is adopted to bind the optical fiber filaments, the contact area between the silica gel film and the optical fiber sheet can be increased, and in the stage of heating shrinkage of the silica gel film, reactive groups in the cage-type oligomeric silsesquioxane can be used as crosslinking points to continuously undergo chemical reaction, so that shrinkage (chemical shrinkage) is macroscopically shown, and the uneven heating of the heat shrinkage film caused by the inherent temperature field error of heating equipment can not be caused, so that the different heat shrinkage amounts at different positions are different, thereby ensuring that the arrangement plate structure of the optical fiber filaments can not be damaged in the heat shrinkage process, avoiding the damage to the arrangement plate structure of the optical fiber filaments caused by uneven stress in the binding process.
2. The invention selects proper heat shrinkage film to ensure that the heat shrinkage film with the function of maintaining the structure has enough heat stability before the optical fiber is fully melted, pressurized and solidified into a whole, and basically does not decompose and carbonize, thereby obtaining the optical fiber panel product with excellent inner quality; and after the bundled plate arrangement structure enters a melt pressing process, the cage-type oligomeric silsesquioxane modified silica gel heat-shrinkable film is heated to generate a composite layer of silica and filler, so that the heat-shrinkable film with the decomposed and carbonized surface is prevented from penetrating into the optical fiber blank plate, and the optical fiber blank plate arrangement structure in the optical fiber plate is stably fixed, and meanwhile, the internal structure of the optical fiber plate is not polluted.
4. According to the invention, manual operation is replaced by an automatic device, a plate bundling link does not need a technician to manually contact the optical fiber surface plate blank, so that the automatic production degree is improved, meanwhile, the product quality stability is greatly improved, the damage to the surface of the optical fiber surface plate blank caused by personnel operation is reduced, the loss and the waste of the optical fiber surface plate blank are reduced, and the production cost of the optical fiber surface plate blank is reduced.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a flow chart of a method of bundling aligned optical fiber filaments according to one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view showing a prior art fiber optic strand bundled with wires or rods;
FIG. 3 is a schematic cross-sectional view showing a heat-shrinkable film according to an embodiment of the present invention after bundling the optical fiber filaments after being arranged;
FIG. 4 is a schematic view showing the structure of a plate arranging die according to an embodiment of the present invention;
FIG. 5 is a schematic view showing a structure of an apparatus for bundling optical fiber wires after arranging plates according to an embodiment of the present invention;
fig. 6 is a schematic structural view showing another device for binding optical fiber after being arranged in a plate according to an embodiment of the present invention.
Detailed Description
In order to further describe the technical means and effects adopted by the invention to achieve the preset aim, the following detailed description refers to the specific implementation, structure, characteristics and effects of the method and device for binding the optical fiber filaments after arranging the plates according to the invention by combining the attached drawings and the preferred embodiment. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
As shown in fig. 1, a method for binding optical fiber after being arranged in a plate according to an embodiment of the present invention includes:
s101, acquiring state information of optical fiber wires after plate arrangement and state information of a plate arrangement mold corresponding to the state information;
in step S101, the state information of the optical fiber after the arrangement includes: the arrangement structure and the size information of the optical fiber filaments after arrangement, such as the opposite side size, the filament diameter, the number and the distribution of the optical fiber filaments, the surface area of the optical fiber blank after arrangement, the section shape, the section perimeter, the section length and the like of the optical fiber blank after arrangement; the state information of the plate arranging die comprises: the shape and size information of the strip mold, such as the shape of the strip mold, the inclination angle (inclination angle) of the strip inclined surface of the strip mold, the length of the strip inclined surface (the length of the strip mold from the bottom plate to the edge of the wire inserting groove), etc., is shown in fig. 4, which is a schematic structural diagram of one embodiment of the strip mold.
S102, determining binding positions for binding the optical fiber filaments after the plate arrangement and the length of a required binding piece according to the state information of the optical fiber filaments after the plate arrangement and the state information of a plate arrangement mold corresponding to the state information; the binding piece is a heat-shrinkable film;
in step S102, the determination of the binding position and the length of the required binding specifically includes: at least two binding positions are respectively positioned at two ends of the optical fiber after the plate arrangement, and at least one binding position is positioned outside the plate arrangement die, namely, the part of the optical fiber after the plate arrangement, which extends out of the plate arrangement die, is used as one binding position. The method for determining the position of one binding plate is specifically as follows: firstly, determining the edge position of one end of the optical fiber plate extending out of the die by a positioning module, then taking the position as a datum point, selecting a position of 5-10mm along the radial direction of the optical fiber plate according to the datum point, positioning the position by a positioning module by laser, and finally obtaining the length and the width of a required binding piece according to the state information of the optical fiber wires after the plate arrangement and the state information of the corresponding plate arrangement die, which are obtained by an obtaining unit, by a calculating module; the other binding plate is positioned at a position where the optical fiber wires are contacted with the bottom plate of the plate arranging die and extend to 5-10mm in the extending direction. The positioning and computing modules work as above.
Then, the binding position points are properly increased according to the length of the optical fiber, for example, when the length of the optical fiber is smaller than 50cm, the binding positions are only required to be determined at the two ends, and when the length of the optical fiber is 50-100cm, the binding positions are determined at the two ends, and a binding position is required to be set in the middle; when the length of the optical fiber filament is greater than 100cm, one binding position is added every about 50 cm.
S103, binding the optical fiber wires after the row plates in the direction perpendicular to the optical fiber wires at the binding position by using the binding piece, and kneading two ends of the binding piece together;
in step S103, after the optical fiber wires after the row plates are bound by the binding member, heating both ends of the binding member by adopting a local heating method, such as heating wires, and rapidly kneading both ends of the binding member together after the two ends of the binding member are heated to be melted;
when in binding, according to the state information of the optical fiber after the plate arrangement and the state information of the corresponding plate arrangement mold, the part extending out of the plate arrangement mold is taken as a first binding position, after the plate arrangement is firmly bound, the optical fiber after the plate arrangement is slowly pulled out of the plate arrangement mold, and then the second binding position and the third binding position are sequentially bound.
S104, heating the binding piece to enable the binding piece to shrink under heating until the binding piece is completely attached to the optical fiber wires behind the row plates, and binding firmly.
In this embodiment, a heat shrinkage film is used as a binding member, the heat shrinkage film satisfies a certain heat shrinkage rate, and the material has a molecular structure containing as little carbon element as possible, and is decomposed as late as possible in the melt pressing process of the optical fiber board, and has excellent heat resistance, so that the inner boundary of the optical fiber board is fully melted and solidified when some unavoidable carbon elements are diffused, and the inner quality of the optical fiber board is not polluted to the greatest extent.
In some embodiments, the heating is radiant heating.
In some preferred embodiments, the radiant heating has a heating rate of 5-10deg.C/min. Preferably, an infrared radiation heater is used for radiation heating.
In the embodiment of the invention, the binding piece is heated slowly and uniformly by adopting a radiation heating mode, so that the binding piece is completely attached to the periphery of the optical fiber after being heated and contracted and the optical fiber is firmly bound. But it is ensured that the optical fiber is not excessively heated to maintain the shape of the optical fiber after the arrangement and not to be deformed.
In some embodiments, the heat shrink film has a heat shrink temperature of 80 to 100 ℃ and a heat shrink of 1 to 2%.
In some embodiments, the heat-shrinkable film has a thickness of 0.8 to 1.0mm, a width and a length of the film are selected according to the dimensions of the fiber optic filaments after the alignment, wherein the length of the film can be determined according to the cross-sectional perimeter of the fiber optic filaments after the alignment, and typically the length of the film is 1.2 to 1.5 times the cross-sectional perimeter of the fiber optic filaments after the alignment, e.g., when the cross-sectional perimeter of the fiber optic filaments after the alignment is less than 10mm, the length of the film is selected to be about 12 to 15mm, and when the cross-sectional perimeter of the fiber optic filaments after the alignment is 10 to 20mm, the length of the film is selected to be about 12 to 30mm; the width of the film may be determined according to the cross-sectional circumference and length of the optical fiber after the row, and when the length of the optical fiber after the row is about 100mm, the width of the film is selected to be 0.5 to 1 times the cross-sectional circumference of the optical fiber after the row, for example, when the length of the optical fiber is 10cm, when the cross-sectional circumference of the optical fiber after the row is less than 10mm, the width of the film is selected to be 5 to 10mm, when the cross-sectional circumference of the optical fiber after the row is 10 to 20mm, the width of the film is selected to be 5 to 20mm, when the cross-sectional circumference of the optical fiber after the row is 20 to 30mm, the width of the film is selected to be 10 to 30mm, and when the cross-sectional circumference of the optical fiber after the row is 30 to 40mm, the width of the film is selected to be 15 to 40mm. When the length of the fiber optic filaments after the row is long, such as when the length is greater than 100mm, the width of the film may be increased appropriately, for example, each 10cm increase in the length of the fiber optic filaments after the row, the width of the film is increased by 2 to 5mm, and preferably, the width of the film is 10 to 50mm depending on the circumference and the length of the cross section of the fiber optic filaments after the row which is commonly used.
In some embodiments, the heat shrink film has a heat shrink temperature of 80 to 100 ℃ and a heat shrink of 1 to 2%.
Since the width and length of the film do not affect the shrinkage degree at the same temperature and time, the thermal shrinkage binding can be completed by only changing the area range of irradiation heating during binding.
When the optical fiber filaments after the row plates are bound, the optical fiber filaments are inclined, and if no optical fiber filaments slide out, the binding is firm.
In some embodiments, the heat shrink film is a composite heat shrink silicone film that meets the conditions, including but not limited to a cage oligomeric silsesquioxane modified silicone film, a fluororubber heat shrink film, or a polytetrafluoroethylene heat shrink film.
The conditions that the heat shrinkage film needs to meet are: when the thickness of the heat-shrinkable film is 0.3-1.5mm, the heat shrinkage rate at 90-100 ℃ is about 1-2%, and the shrinkage time is about 3-10min.
Preferably, the conditions to be met by the cage oligomeric silsesquioxane modified silica gel film are: when the thickness of the heat shrinkable film is 0.9mm, the heat shrinkage at 90℃is about 1.2% and the shrinkage time is about 6.5 minutes.
In the prior art, the heat shrinkage film generally adopts physical shrinkage, namely, the shape memory polymer material is used for realizing the coating of an object, the mode is easily influenced by factors such as a heating mode, heating conditions and the like, and the shrinkage precision is required to be further improved. Thus, in some preferred embodiments, the heat shrink film uses a cage oligomeric silsesquioxane modified silica film where the Si-H bond in the cage oligomeric silsesquioxane is the cross-linking point, i.e., the site of reaction with the vinyl group in the vinyl silicone rubber. With the increase of the addition amount of the cage-type oligomeric silsesquioxane, the content of Si-H bonds is increased, the number of crosslinking points is increased, and the crosslinking density of the vinyl silicone rubber is increased, so that the molecular chain flexibility of the silicone rubber film is reduced, but when the addition amount of the cage-type oligomeric silsesquioxane is continuously increased, the crosslinking points of the vinyl silicone rubber are saturated, and at the moment, the problem that the density of the crosslinking reaction is reduced in the same reaction time due to the dispersion of the crosslinking points occurs, so that the molecular chain flexibility of the silicone rubber film in the same reaction time is increased. Therefore, the thermal stability and binding stability are comprehensively considered when the cage-type oligomeric silsesquioxane composite heat shrinkable film is used.
In some embodiments, the preparation method of the cage-type oligomeric silsesquioxane modified silica gel film composite heat-shrinkable silica gel film comprises the following steps:
under the condition of stirring, sequentially adding the cage-type oligomeric silsesquioxane and the heat conducting filler into vinyl silicone rubber, uniformly mixing, pressing into a film, and then curing for 2-6 hours at the temperature of 40-60 ℃ to obtain the cage-type oligomeric silsesquioxane modified silicone film. Wherein, the weight portions are 80-100 portions of vinyl silicone rubber, 10-18 portions of cage-type oligomeric silsesquioxane and 5-10 portions of heat conducting filler.
Further, the preparation method of the cage-type oligomeric silsesquioxane comprises the following steps:
at N 2 Under the protection of gas, 25g of ferric trichloride and 10mL of concentrated hydrochloric acid are added into a three-necked flask, then 20mL of methanol, 25mL of toluene and 150mL of n-hexane are added into the three-necked flask, and after uniform stirring, 10mL of HSiCl is added 3 Dissolving in 50mL of n-hexane, slowly dripping the mixture into a three-neck flask within 3h, continuously and rapidly stirring after dripping, heating to 30 ℃ at a stirring speed of 1120rpm, and reacting for 2h at 30 ℃; separating n-hexane layer, adding anhydrous CaCl into filtrate 2 And anhydrous K 2 CO 3 Stirring, standing for 8h, and filtering; and (3) distilling the liquid obtained by filtration under reduced pressure at 70 ℃ for 2 hours until crystals are separated out, collecting the separated product, washing with normal hexane, and drying at 50 ℃ for 8 hours to obtain the cage-type oligomeric silsesquioxane.
In the embodiment, the thermal stability and binding stability of the cage-type oligomeric silsesquioxane modified silica gel film composite heat-shrinkable silica gel film are good. When the vinyl silicone rubber is 100 parts and the cage-type oligomeric silsesquioxane is about 18-22 parts, the thermal shrinkage rate of the composite thermal shrinkage film is low, and the binding stability is poor.
In the invention, the cage-type oligomeric silsesquioxane modified silica gel film is adopted to bind the optical fiber filaments, the contact area between the silica gel film and the optical fiber sheet can be increased, and in the stage of heating shrinkage of the silica gel film, reactive groups in the cage-type oligomeric silsesquioxane can be used as crosslinking points to continuously undergo chemical reaction, so that shrinkage (chemical shrinkage) is macroscopically shown, and the uneven heating of the heat shrinkage film caused by the inherent temperature field error of heating equipment can not be caused, so that the different heat shrinkage amounts at different positions are different, thereby ensuring that the arrangement plate structure of the optical fiber filaments can not be damaged in the heat shrinkage process, avoiding the damage to the arrangement plate structure of the optical fiber filaments caused by uneven stress in the binding process.
The method of the invention uses the film material to replace the silk thread material, completely coats the surface of the optical fiber silk, uniformly bears force in the thermal shrinkage process, furthest protects the arrangement plate structure of the optical fiber silk, ensures that the arrangement plate structure of the optical fiber silk in the optical fiber plate is not easy to slide and loose relatively when the arrangement plate structure is bundled, can better meet the bundle plate requirement of the optical fiber plate blank, and ensures that the bundled arrangement plate structure can better meet the bundle plate requirement of the optical fiber plate blank, and after entering the melting and pressing process, the cage-type oligomeric silsesquioxane modified silica gel thermal shrinkage film is heated to generate a composite layer of silicon dioxide and filler, thereby blocking the thermal shrinkage film with the surface decomposed and carbonized from penetrating into the optical fiber blank, and ensuring that the inner structure of the optical fiber plate blank is not polluted when the arrangement plate structure of the optical fiber plate blank in the optical fiber plate is stably fixed.
The cage-type oligomeric silsesquioxane is added into the silica gel heat-shrinkable film as a heat-resistant auxiliary agent, so that the heat resistance of the silica gel heat-shrinkable film is improved. Boron nitride is added into the silica gel heat shrinkage film as a heat conduction filler, the boron nitride has good high-temperature stability and high heat conduction coefficient, the heat conduction coefficient of the composite material can be improved, the overall heat transfer of the composite material is more uniform, the composite layer of silicon dioxide and boron nitride generated by heating is prevented from being damaged due to burning through generated by local overheating, and carbon is led to have a channel for diffusing into the optical fiber plate.
The silica gel heat-shrinkable film is a silica gel heat-shrinkable film modified by cage-type oligomeric silsesquioxane, wherein the cage-type oligomeric silsesquioxane is an organic-inorganic hybrid system on molecular level, and the structure of the cage-type oligomeric silsesquioxane is between that of silicon dioxide (SiO 2 ) And a silicone resin (R) 2 SiO) n And has the comprehensive performance of organic and inorganic materials. Silica gel takes a silica bond (-Si-O-Si-) as a main chain, and the silica bond energy is larger than a carbon-carbon bond, so that the silica gel product has strong high temperature resistance of inorganic materials, and has comprehensive properties of organic materials, such as film forming property, high elasticity, air tightness and the like.
The thermal shrinkage film used in the method can not introduce organic groups on the premise of ensuring the binding stability of the thermal shrinkage film, and can avoid more carbon formation in the melt pressing process. The method can reduce dark spots generated by abrasion among the optical fiber wires and improve the quality of the optical fiber image transmission element.
The optical fiber after being arranged is bound by the heat shrinkage film, and the method has the following advantages:
firstly, according to the embodiment of the invention, the cage-type oligomeric silsesquioxane is introduced as a heat-resistant auxiliary agent to obtain the silica gel heat-shrinkable film, so that the high temperature resistance of the silica gel film is improved. The silica gel heat shrinkage film is an organic-inorganic hybrid system, and the main chain of the silica gel heat shrinkage film is mainly composed of silica bonds and contains fewer carbon-carbon bonds according to structural formula analysis. Because the self carbon content is less, even if the silicon thermal shrinkage film is decomposed by heating, part of the silicon thermal shrinkage film is diffused into the optical fiber board, the diffusion depth of the silicon thermal shrinkage film does not reach an effective area for detecting inner quality, and the optical fiber board with the periphery of 3-5 mm is finally ground off during cold processing, so that the silicon thermal shrinkage film can meet the requirements of the fusion pressing process of the optical fiber panel. The heat resistance of the conventional common silica gel film can not meet the temperature requirement of the production process of the optical fiber panel, and the optical fiber plate is not fully solidified into a whole in the melting and pressing process of the optical fiber panel, so that carbon generated by thermal decomposition of the optical fiber plate can be diffused into the optical fiber plate, and the quality of an optical fiber product is further affected.
Secondly, the embodiment of the invention adopts a flexible heat-shrinkable film material to replace wire rods, as shown in fig. 3, 1 is an optical fiber, 2 is the binding piece of the invention, and is a heat-shrinkable film, the heat-shrinkable film and the edge of the optical fiber at the periphery of the optical fiber board form surface contact, so that the heat-shrinkable film material can be completely matched, and on the basis, the flexible heat-shrinkable film material can be heated and shrunk, and enough binding force is generated through the heated and shrunk so as to keep the stability of the arrangement plate structure of the optical fiber wires in the optical fiber board. In the prior art, the fiber wires are used for binding the optical fiber wires after arranging the plates, as shown in fig. 2, 1 is the optical fiber wire, 3 is the wire or the wire used in the prior art, a large amount of gaps are reserved between the wire and the edge of the optical fiber wire at the periphery of the optical fiber plate, and the structural stability of the arranging plate of the optical fiber wires inside the optical fiber plate is greatly influenced. The wire rod is in point contact with the optical fiber wires at the edge of the six-edge optical fiber plate, the closer to the optical fiber wires at the center, the higher the risk of relative sliding and loosening is, and the sliding and loosening of the internal optical fiber wire array plate structure is easy to occur before the optical fiber plate enters the melt-pressing process, so that the optical fiber image transmission element cannot be normally used.
Thirdly, the method of the invention adopts the heat shrinkage film as the binding piece, the heat shrinkage film is completely attached to the periphery of the optical fiber after being heated and shrunk and firmly binds the optical fiber, the point contact of the existing silk thread material is changed into the surface contact of the film material, the contact area of the binding piece and the optical fiber is increased, the stability of the structure of the optical fiber silk strip plate is ensured, and the production loss caused by loose sliding of the structure of the optical fiber silk strip plate is reduced. The method of the invention ensures that the thermal shrinkage film with the function of maintaining the structure has enough thermal stability and basically does not decompose and carbonize before the optical fiber yarn is fully melted, pressurized and solidified into a whole by selecting the proper thermal shrinkage film, preferably the compound thermal shrinkage silica gel film, thereby obtaining the optical fiber panel product with excellent inner quality. The thermal shrinkage film is adopted to bind the optical fiber wires in the preparation process of the optical fiber panel, so that the binding piece is completely attached to the bound optical fiber plate, the structural stability of the optical fiber panel plate is ensured, and the quality stability of the optical fiber product are improved.
Fourth, the invention replaces manual operation with the automatic device, the plate binding link does not need a technician to manually contact the optical fiber surface plate blank, the automatic production degree is improved, meanwhile, the product quality stability can be greatly improved, the damage to the surface of the optical fiber surface plate blank caused by the personnel operation is reduced, the loss and the waste of the optical fiber surface plate blank are reduced, and the production cost of the optical fiber surface plate blank is reduced.
As shown in fig. 3, the optical fiber panel blank structure manufactured by the method of the present invention includes an optical fiber panel blank composed of a plurality of optical fiber filaments 1 arranged in an array, and further includes: at least one binding piece 2 is arranged on the periphery of the optical fiber panel blank, the binding piece 2 is completely attached to the periphery of the optical fiber panel blank, the binding piece 2 is a heat shrinkage film and is made of a heat shrinkage material, the thickness of the binding piece is 0.8-1.0mm, and the width of the binding piece is 10-50mm.
The optical fiber is generally prismatic in shape, such as a quadrangular prism, a hexagonal prism, an eight-square prism, etc., and the present invention is described by taking the optical fiber of hexagonal prism shape as an example, and does not limit the scope of the present invention.
The method is used for binding the optical fiber wires after the plate arrangement, so that the plate arrangement structure of the optical fiber wires inside the optical fiber plate can achieve the effect of stabilizing the plate arrangement structure through the chemical shrinkage of the composite silica gel film when the plate is bound, the relative sliding and loosening probability of the optical fiber wires is smaller, the plate binding requirement of the optical fiber wires can be better met, in addition, a plate binding link does not need a technician to manually contact the optical fiber wires, the damage of the surface of the optical fiber wires caused by the operation of the technician is reduced, the loss and the waste of the optical fiber wires are reduced, the production cost of the optical fiber image transmission element is reduced, and the automatic production degree is improved. And after entering the melt pressing process, the composite thermal shrinkage silica gel film can generate a composite layer of silicon dioxide and other fillers in the heating process, so that penetration of surface carbonization into the optical fiber plate is blocked, and the inner structure of the optical fiber plate can not be polluted while the inner structure of the optical fiber plate is stably fixed.
The method of the invention adopts the heat shrinkage film and has the greatest advantages of complete cladding, so as to enlarge the contact area with the optical fiber plate and ensure firm binding, thereby better keeping the stability of the structure of the optical fiber strip plate relative to the prior art of silk thread materials.
As shown in fig. 5 and 6, an apparatus for binding optical fiber after being arranged in a plate according to an embodiment of the present invention includes:
an obtaining unit 201, configured to obtain state information of the optical fiber filaments after the arrangement and state information of a corresponding arrangement mold;
a determining unit 202, configured to determine a binding position and a length of a required binding member according to the state information of the optical fiber filaments after the arranging and the state information of the corresponding arranging mold; the binding piece is a heat-shrinkable film;
a binding unit 203 for binding the optical fiber wires after the row plates in a direction perpendicular to the optical fiber wires at the binding position with the binding member, and kneading both ends of the binding member together;
and the heating unit 204 is used for heating the binding piece to enable the binding piece to shrink under heating until the binding piece is completely attached to the optical fiber wires behind the row plates, and the binding is firm.
Specifically, the acquisition unit 201 may include: an infrared probe and an image display screen. More preferably, the acquiring unit 201 is 100mm away from the optical fiber plate, so as to provide enough working space for the infrared probe, acquire the state information of the optical fiber wires after the plate arrangement and the state information of the corresponding plate arrangement mold by using the infrared probe, and display the state information on the image display screen.
The determining unit 202 may include a calculating module and a positioning module, where the positioning module is configured to determine a binding position of the optical fiber according to the state information obtained by the obtaining unit 201, and the calculating module is configured to calculate a length of the binding member required at the binding position;
the binding unit 203 may include a film feeding module 2031 and a binding module 2032, wherein the film feeding module 2031 is used to transfer a corresponding length of binding member to the binding module 2032, enable the binding member to surround the optical fiber sheet at least one turn, and pinch both ends of the composite silicone heat shrinkable film together.
The heating unit 204 may include an infrared lamp, and the heating unit 204 starts to work while the binding module 2032 is kneaded, so as to ensure that the composite silica gel heat shrinkage film is heated uniformly, and in the heat shrinkage process, the composite silica gel heat shrinkage film and the edge of the peripheral optical fiber filament of the optical fiber board form surface contact, so that the composite silica gel heat shrinkage film can be completely matched, and meanwhile, enough binding force is generated, and meanwhile, the arrangement plate structure of the optical fiber filament inside the optical fiber board is not damaged. Through a large number of experiments, the cage-type oligomeric silsesquioxane modified silica gel film can be firmly bound by heating for 6.5 minutes at 90 ℃.
The plate bundling device is used for realizing the method for bundling the optical fiber wires after plate arrangement, firstly, the acquisition unit acquires the state information of the optical fiber wires after plate arrangement and the state information of the corresponding plate arrangement die; and then the determining unit selects the bundling plate position meeting the structure of the current optical fiber and the size information of the arranging plate die from the preset bundling plate positions according to the state information, determines the bundling position and the length of the required bundling piece, and finally, the bundling unit sends the bundling plate operation scheme to the manipulator, so that the manipulator can perform bundling plate operation on the optical fiber plate according to the bundling plate operation scheme, and further fixation of the optical fiber plate after arranging the plate is realized.
The invention will be further described with reference to specific examples, which are not to be construed as limiting the scope of the invention, but rather as falling within the scope of the invention, since numerous insubstantial modifications and adaptations of the invention will now occur to those skilled in the art in light of the foregoing disclosure.
In the following examples of the present invention, all reagents are commercially available unless otherwise specified, and the methods involved are conventional.
In the following examples of the present invention, unless otherwise indicated, all components referred to are commercially available products well known to those skilled in the art.
Example 1
A preparation method of a cage-type oligomeric silsesquioxane modified silica gel film comprises the following steps:
under the action of an electric stirrer, raw materials are weighed according to the formula amount of the embodiment 1 in the table 1, cage-type oligomeric silsesquioxane and boron nitride are sequentially added into vinyl silicone rubber, uniformly mixed, pressed into a film by a calender after reacting for 2.5 hours, and cured for 3 hours at 50 ℃ to obtain the cage-type oligomeric silsesquioxane modified silica gel heat-shrinkable film.
The properties of the cage oligomeric silsesquioxane modified silica gel heat shrink film obtained in example 1 are shown in Table 1.
The optical fiber filaments were arranged in the arrangement shown in fig. 3, the length of the optical fiber filaments was 100mm, the circumference of the cross section was 24.2mm, the optical fiber filaments after the arrangement were bundled by using the cage-type oligosilsesquioxane-modified silica gel heat-shrinkable film obtained in example 1, the thickness of the heat-shrinkable film was 0.8mm, the width was 24mm, and the length was 36mm, the two ends of the heat-shrinkable film were kneaded together by first local heating, and then the heat-shrinkable film was heated by using an infrared radiation heater at a heating rate of 10 ℃/min, and the heat-shrinkable film was shrunk by heating until it was completely adhered to the optical fiber filaments after the arrangement.
And (3) performing an inclination angle test on the bundled row plate structure to test the stability of the optical fiber filament row plate structure bundled by the silica gel heat shrinkage film: at an inclination angle of 60 °, the number of optical fiber filaments sliding out therefrom was 2.
Example 2
The preparation method of example 2 was the same as that of example 1, except that the proportions of the raw materials were different, and the raw materials were weighed according to the formulation amounts of example 2 in table 1.
The properties of the cage oligomeric silsesquioxane modified silica gel heat shrink film obtained in example 2 are shown in Table 1.
Arranged in the manner shown in fig. 3, 37 optical fiber filaments were bundled by using the cage-type oligomeric silsesquioxane modified silica gel heat-shrinkable film obtained in example 2, and subjected to an inclination angle test for checking the stability of the structure of the optical fiber filament array plate after the bundled silica gel heat-shrinkable film: at an inclination angle of 60 °, the number of optical fiber filaments sliding out from the optical fiber preform was 7.
Example 3
The preparation method of example 3 was the same as that of example 1, except that the proportions of the raw materials were different, and the raw materials were weighed according to the formulation amounts of example 3 in table 1.
The properties of the cage oligomeric silsesquioxane modified silica gel heat shrink film obtained in example 3 are shown in Table 1.
Arranged in the manner shown in fig. 3, 37 optical fiber filaments were bundled by using the cage-type oligomeric silsesquioxane modified silica gel heat-shrinkable film obtained in example 3, and subjected to an inclination angle test for checking the stability of the structure of the fiber strand board after the bundled silica gel heat-shrinkable film: at an inclination angle of 60 °, the number of optical fiber filaments sliding out from the optical fiber preform was 13.
Example 4
The preparation method of example 4 was the same as that of example 1, except that the proportions of the raw materials were different, and the raw materials were weighed according to the formulation amounts of example 4 in table 1.
The properties of the cage oligomeric silsesquioxane modified silica gel heat shrink film obtained in example 4 are shown in Table 1.
Arranged in the manner shown in fig. 3, 37 optical fiber filaments were bundled by using the cage-type oligomeric silsesquioxane modified silica gel heat-shrinkable film obtained in example 4, and subjected to an inclination angle test for checking the stability of the structure of the fiber strand board after the bundled silica gel heat-shrinkable film: at an inclination angle of 60 °, the number of optical fiber filaments sliding out from the optical fiber preform plate was 4.
Example 5
The preparation method of example 5 was the same as that of example 1, except that the proportions of the raw materials were different, and the raw materials were weighed according to the formulation amounts of example 5 in table 1.
The properties of the cage oligomeric silsesquioxane modified silica gel heat shrink film obtained in example 5 are shown in Table 1.
Arranged in the manner shown in fig. 3, 37 optical fiber filaments were bundled by using the cage-type oligomeric silsesquioxane modified silica gel heat-shrinkable film obtained in example 5, and subjected to an inclination angle test for checking the stability of the structure of the fiber strand board after the bundled silica gel heat-shrinkable film: at an inclination angle of 60 °, the number of optical fiber filaments sliding out from the optical fiber preform plate was 3.
Example 6
The preparation method of example 6 was the same as that of example 1, except that the proportions of the raw materials were different, and the raw materials were weighed according to the formulation amounts of example 6 in table 1.
The properties of the cage oligomeric silsesquioxane modified silica gel heat shrink film obtained in example 6 are shown in Table 1.
Arranged in the manner shown in fig. 3, 37 optical fiber filaments were bundled by using the cage-type oligomeric silsesquioxane modified silica gel heat-shrinkable film obtained in example 6, and subjected to an inclination angle test for checking the stability of the structure of the optical fiber filament array plate after the bundled silica gel heat-shrinkable film: at an inclination angle of 60 °, the number of optical fiber filaments sliding out from the optical fiber preform was 14.
Example 7
The preparation method of example 7 was the same as that of example 1, except that the proportions of the raw materials were different, and the raw materials were weighed according to the formulation amounts of example 7 in table 1.
The properties of the cage oligomeric silsesquioxane modified silica gel heat shrink film obtained in example 7 are shown in Table 1.
Arranged in the manner shown in fig. 3, 37 optical fiber filaments were bundled by using the cage-type oligomeric silsesquioxane modified silica gel heat-shrinkable film obtained in example 7, and subjected to an inclination angle test for checking the stability of the structure of the optical fiber filament array plate after the bundled silica gel heat-shrinkable film: at an inclination angle of 60 °, the number of optical fiber filaments sliding out from the optical fiber preform was 23.
Comparative example
A silica gel film was prepared in the same manner as in example 1 except that the proportions of the raw materials were different, and the raw materials were weighed according to the formulation amounts of the comparative examples in Table 1.
The properties of the silica gel film obtained in the comparative example are shown in Table 1.
Arranged in the manner shown in fig. 3, 37 optical fiber filaments were bundled by using the cage-type oligomeric silsesquioxane modified silica gel heat-shrinkable film obtained in the comparative example, and an inclination angle test was performed thereon to examine the stability of the fiber filament array plate structure after the bundling of the silica gel heat-shrinkable film: at an inclination angle of 60 °, the number of optical fiber filaments sliding out from the optical fiber preform plate was 2.
TABLE 1 raw materials and Properties of cage oligomeric silsesquioxane modified silica gel heat shrink films
Table 1 summarizes the partial test performance of cage oligomeric silsesquioxane modified silica gel shrink films, fluororubber shrink films, polytetrafluoroethylene shrink films.
As can be seen from table 1, under certain other conditions, the content of cage-type oligomeric silsesquioxane gradually increased from example 1 to example 5, the heat shrinkage gradually decreased from example 1 to example 3, and the heat shrinkage gradually increased from example 3 to example 5; the thermal stability of examples 1 to 3 gradually increased and the thermal stability of examples 3 to 5 gradually decreased, indicating that the inflection points of the thermal shrinkage and the thermal stability of the composite heat shrinkable film appear in example 3, indicating that the addition amount of the cage-type oligomeric silsesquioxane has a great influence on the thermal shrinkage and the thermal stability of the composite heat shrinkable film. Considering the combination of thermal stability (heat resistance temperature greater than 320 ℃) and bundling stability (number of optical fiber filaments slipped out), the addition amount of cage-type oligomeric silsesquioxane can be preferred, indicating that the effects of examples 1, 2, 4 and 5 are better. Analyzing the possible reasons for this: the Si-H bond in the cage oligomeric silsesquioxane is the cross-linking point, i.e., the site of reaction with the vinyl group in the vinyl silicone rubber. With increasing addition of cage-type oligomeric silsesquioxane, the Si-H bond content increases, the number of crosslinking points increases, the crosslinking density of the vinyl silicone rubber increases, and the molecular chain flexibility of the silicone rubber film decreases, which is manifested by gradual decrease of the heat shrinkage rate of examples 1 to 3; however, as the amount of the cage-type oligomeric silsesquioxane added continues to increase, the crosslinking points of the vinyl silicone rubber become saturated, and at this time, there arises a problem that the density of the crosslinking reaction decreases in the same reaction time due to the dispersion of the crosslinking points, resulting in an increase in the flexibility of the molecular chains of the silicone rubber film in the same reaction time, which is manifested in an increase in the heat shrinkage rate of examples 3 to 5. An inflection point of the heat shrinkage rate of the composite heat shrinkage film appears in example 3, and 13 optical fiber filaments are slipped out at the time of the actual bundling plate test.
Example 6 is a fluororubber heat shrink film and example 7 is a polytetrafluoroethylene heat shrink film, and as can be seen from table 1, the thermal stability and binding stability of the two groups of samples are good without the addition of a composite heat shrink film of cage oligomeric silsesquioxane.
In the comparative example in which the cage-type oligomeric silsesquioxane was not added, although the test result (2 pieces) of the bundling plate was obtained in the comparative example in which the cage-type oligomeric silsesquioxane was not added, the heat-resistant temperature was 189℃in the comparative example in which the cage-type oligomeric silsesquioxane was not added, and the heat-resistant temperature could reach about 350℃after the cage-type oligomeric silsesquioxane was added. Therefore, the addition of the cage-type oligomeric silsesquioxane can obviously improve the heat resistance of the silicone rubber, but also has an influence on the thermal shrinkage rate (binding stability) of the composite thermal shrinkage film. Therefore, the thermal stability and binding stability are comprehensively considered when the cage-type oligomeric silsesquioxane composite heat shrinkable film is used.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "horizontal", "vertical", etc. are based on the methods or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The present invention is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalents and modifications can be made to the above-mentioned embodiments without departing from the scope of the invention.
Claims (9)
1. A method of bundling aligned optical fiber strands, comprising:
acquiring state information of the optical fiber after plate arrangement and state information of a plate arrangement mold corresponding to the state information;
determining binding positions for binding the optical fiber filaments after the plate arrangement and the length of a required binding piece according to the state information of the optical fiber filaments after the plate arrangement and the state information of the corresponding plate arrangement mold; the binding piece is a heat-shrinkable film;
Binding the optical fiber wires after the row plates in the direction perpendicular to the optical fiber wires at the binding position by using the binding piece, and kneading two ends of the binding piece together;
heating the binding piece to enable the binding piece to shrink by heating until the binding piece is completely attached to the optical fiber after the row plates, and binding firmly;
the heat shrinkage film is a cage-type oligomeric silsesquioxane modified silica gel film.
2. The method of bundling optical fiber after arranging according to claim 1, wherein the heat shrinkage temperature of the heat shrinkage film is 80-100 ℃ and the heat shrinkage rate is 1-2%.
3. The method for bundling aligned optical fiber filaments of claim 1, wherein said method for preparing a cage-type oligomeric silsesquioxane modified silica gel film comprises: under the condition of stirring, sequentially adding the cage-type oligomeric silsesquioxane and the heat conducting filler into vinyl silicone rubber, uniformly mixing, pressing into a film, and then curing at 40-60 ℃ for 2-6 h to obtain the cage-type oligomeric silsesquioxane modified silica gel film.
4. The method for binding the optical fiber filaments after being arranged in the plate according to claim 3, wherein the weight parts of the vinyl silicone rubber are 80-100 parts, the weight parts of the cage-type oligomeric silsesquioxane are 10-30 parts, and the weight parts of the heat conducting filler are 5-10 parts.
5. The method of bundling aligned optical fiber strands according to claim 4 wherein the thermally conductive filler is selected from one or more of boron nitride, aluminum nitride and zinc oxide.
6. The method of bundling optical fiber after arranging according to claim 1, wherein the heat-shrinkable film has a thickness of 0.8-1.0-mm, a width of 0.5-1 times the cross-sectional circumference of the optical fiber after arranging, and a length of 1.2-1.5 times the cross-sectional circumference of the optical fiber after arranging.
7. The method of bundling aligned optical fiber filaments of claim 1 wherein said heating is radiation heating at a heating rate of 5-10 ℃/min.
8. The method of bundling post-row optical fiber as in claim 1, wherein the post-row optical fiber status information comprises: the arrangement structure and the size information of the optical fiber after the arrangement are displayed;
the state information of the plate arranging die comprises: shape and size information of the gang board mold.
9. An apparatus for bundling aligned optical fiber strands, comprising:
The acquisition unit is used for acquiring the state information of the optical fiber after the plate arrangement and the state information of the plate arrangement mold corresponding to the state information;
the determining unit is used for determining binding positions and the lengths of required binding pieces according to the state information of the optical fiber wires after the plate arrangement and the state information of the plate arrangement mold corresponding to the state information; the binding piece is a heat-shrinkable film; the thermal shrinkage film is a cage-type oligomeric silsesquioxane modified silica gel film;
a binding unit for binding the optical fiber filaments after the row plates in a direction perpendicular to the optical fiber filaments at the binding position by using the binding member, and kneading both ends of the binding member together;
and the heating unit is used for heating the binding piece to enable the binding piece to shrink by heating until the binding piece is completely attached to the optical fiber wires behind the row plates, and the binding is firm.
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