Bonded optical fiber ribbon, and preparation device and preparation method therefor

Abstract

A bonded optical fiber ribbon (100) comprises first functional areas (11) and second functional areas (12). In the length direction of optical fibers (10), the plurality of first functional areas (11) and the plurality of second functional areas (12) are alternately arranged at intervals. The first functional areas (11) and the second functional areas (12) are alternately arranged at intervals, so that connecting portions (20) are connected to corresponding blank areas of the adjacent optical fibers (10), thereby preventing the connecting portions (20) of the adjacent optical fibers (10) from being bonded to each other and being interfered with and misaligned with each other, so that the optical fibers (10) are orderly arranged, and the optical fibers (10) are tightly bonded. In the width direction of the optical fibers (10), the number of connecting portions (20) of each optical fiber (10) is reduced, the distance between the adjacent connecting portions (20) is reduced, and the density of the connecting portions (20) is reduced, so that the stress generated when the bonded optical fiber ribbon (100) is bent is relieved to a certain extent, thereby increasing the flexibility of the bonded optical fiber ribbon (100).

Description

Adhesive optical fiber ribbon and preparation device and method thereof TECHNICAL FIELD

[0001] The present application relates to the field of optical fiber technology, in particular to an adhesive optical fiber ribbon and a preparation device and method thereof. BACKGROUND

[0002] In recent years, the application form and environment of FTTX are diversified, and the demand for large-core and super-large-core optical cables is increasing in China, so optical fiber ribbon optical cables are used, and the optical fiber ribbon is a multi-core optical fiber (2, 4, 6, 8, 12 cores, etc.) arranged by a special adhesive material.

[0003] Japan NTT first proposed a mesh optical fiber ribbon, which is a new type of optical fiber ribbon that can realize large-core and miniaturization of optical cables. The mesh optical fiber is coated with an adhesive material on a part of each optical fiber, and the adhesive material tightly bonds the optical fibers into one body. Compared with conventional optical fiber ribbons, the mesh optical fiber ribbon has good flexibility, can be wound for use without affecting the optical performance of the optical fiber, and can realize the development of high-density optical cables under the same volume.

[0004] However, the bonding area of each optical fiber in the above-mentioned mesh optical fiber ribbon is uncertain, which may cause the density of the bonding area between the optical fibers in a certain direction to be large, making the optical fibers not soft enough and not easy to fold. In addition, the bonding area of the mesh optical fiber is limited, and if the bonding force is small, the mesh optical fiber is prone to ribbon scattering.

[0005] SUMMARY

[0006] Therefore, it is necessary to provide an adhesive optical fiber ribbon and a preparation device and method thereof to solve the above technical problems. The first functional area and the second functional area are alternately and spacedly arranged, the connecting part is connected with the blank area of the adjacent optical fiber, the interference and misalignment of the connecting parts of the adjacent optical fibers are avoided, the optical fibers are arranged in order, and the optical fibers are tightly bonded and not easy to scatter.

[0007] The first aspect of the present application provides an adhesive optical fiber ribbon, which comprises a plurality of optical fibers and a connecting part. Each optical fiber comprises a plurality of first functional areas and a plurality of second functional areas, which are alternately and spacedly distributed along the length direction of the optical fiber. The connecting part is arranged in at least one of the first functional area and the second functional area, and is used to connect the first functional area of each optical fiber with the second functional area of the adjacent optical fiber, and to connect the second functional area of each optical fiber with the first functional area of the adjacent optical fiber. The connecting part comprises 2-5 bonding points, the distance between adjacent bonding points is 1-3 mm, the length of the bonding point is 0.5-1.5 mm, and the number of bonding points arranged in the first functional area and the second functional area is different.

[0008] In one embodiment, the bonding points are arranged in the first functional areas, and the bonding points are capable of connecting with the second functional areas of the adjacent optical fibers.

[0009] In one embodiment, the optical fiber comprises a plurality of single-core optical fibers and a plurality of two-core optical fibers, the single-core optical fibers and the two-core optical fibers are arranged alternately and spaced apart, each single-core optical fiber and each two-core optical fiber are respectively provided with alternately and spaced apart first functional areas and second functional areas along the length direction; the first functional area of each single-core optical fiber is connected with the second functional area of the adjacent two-core optical fiber through the connecting part, and the second functional area of each single-core optical fiber is connected with the first functional area of the adjacent two-core optical fiber.

[0010] In one embodiment, the optical fiber comprises a pretreatment layer, and the pretreatment layer comprises at least one or more of P-20 resin, LJ-1388 resin, LJ-12510 resin and KG500 resin.

[0011] The second aspect of the present application provides a preparation device of the bonding type optical fiber ribbon, the preparation device comprises a wire unwinding assembly, a bundling member, a dispensing member, a curing assembly and an output assembly, wherein the wire unwinding assembly comprises a wire unwinding rack for placing each optical fiber, and the wire unwinding rack is used for transmitting the optical fiber; the bundling member is arranged on the same side of the wire unwinding assembly and is used for synchronously pulling all the optical fibers; the dispensing member is arranged on one side of the bundling member and is used for periodically spraying bonding points between the adjacent optical fibers output by the bundling member; the curing assembly is used for curing the optical fiber ribbon output by the dispensing member to form the bonding type optical fiber ribbon; and the output assembly is used for outputting the bonding type optical fiber ribbon.

[0012] In one embodiment, the preparation device further comprises a directional assembly, the directional assembly comprises a first directional wheel and a second directional wheel, and the gap between the first directional wheel and the second directional wheel is capable of being adjusted; when the optical fiber output from the curing assembly passes between the first directional wheel and the second directional wheel, the optical fiber is capable of being pressed by the pressure between the first directional wheel and the second directional wheel, so that the bonding points of the optical fiber are pressed tightly.

[0013] In one embodiment, the curing assembly comprises a first curing lamp box and a second curing lamp box, the first curing lamp box and the second curing lamp box are arranged on opposite sides of the directional assembly, the first curing lamp box is used for curing the bonding points of the optical fiber output from the dispensing member, and the second curing lamp box is used for curing the bonding points of the optical fiber output from the directional assembly.

[0014] The third aspect of the present application provides a preparation method for preparing the bonded optical fiber ribbon by using the preparation device for the bonded optical fiber ribbon, the preparation method comprising: coloring the outer side of each optical fiber to form a colored layer, the colored layer having a curing degree of less than 85%; coating the colored layer to form a pretreatment layer on the outer side of the colored layer; periodically spraying bonding points between adjacent optical fibers output by the bundling member by using the dispensing member; curing the bonding points of the optical fibers output from the dispensing member by using the first curing lamp box; compacting the bonding points of the optical fibers by using the directional assembly; and curing the bonding points of the optical fibers output from the directional assembly by using the second curing lamp box.

[0015] In one of the embodiments, the bonded optical fiber ribbon comprises single-core optical fibers and two-core optical fibers arranged alternately and at intervals, and the preparation method further comprises: coating the colored layer on each of the optical fibers in the two-core optical fibers; and coating the pretreatment layer on each of the optical fibers in the two-core optical fibers.

[0016] In one of the embodiments, the colored layer comprises blue fluorescent resin.

[0017] The present application has the following technical effects: first, the first functional area and the second functional area are arranged alternately and at intervals, the connecting part is connected to the blank area of the adjacent optical fiber, the interference caused by the mutual bonding of the connecting parts of the adjacent optical fibers is avoided, the mutual misalignment is avoided, the optical fibers are arranged in order, and the bonding between the optical fibers is tighter. In the width direction of the optical fiber, the number of the connecting parts between each optical fiber is reduced, the distance between the adjacent connecting parts is reduced, the density of the connecting parts is reduced, the stress generated when the bonded optical fiber ribbon is bent is relieved to some extent, and the flexibility of the bonded optical fiber ribbon is increased.

[0018] Second, the flatness of the bonded optical fiber ribbon is less than 20 um, and the fusion splice loss of the optical fiber in the later stage is reduced.

[0019] Third, after the pretreatment layer of the optical fiber is irradiated by the UV lamp, the bonding force between the pretreatment layer and the bonding point is further strengthened by the reinforcing effect of the special resin, at the same time, the pretreatment layer becomes softer and has higher plasticity after being irradiated by the UV lamp, so that the bonded optical fiber ribbon is more suitable for different application occasions. BRIEF DESCRIPTION OF DRAWINGS

[0020] FIG. 1 is a structural schematic view of a bonded optical fiber ribbon in one of the embodiments.

[0021] FIG. 2 is a sectional view in the A direction of FIG. 1.

[0022] FIG. 3 is a sectional view in the B direction of FIG. 1.

[0023] FIG. 4 is a structural schematic view of another bonded optical fiber ribbon in one of the embodiments.

[0024] Fig. 5 is a schematic view of a cross section in direction C in Fig. 4.

[0025] Fig. 6 is a schematic view of a cross section in direction D in Fig. 4.

[0026] Fig. 7 is a schematic view of a structure of a preparation device of a bonded optical fiber ribbon in an embodiment.

[0027] Fig. 8 is a schematic view of a structure of adjacent optical fibers and a bonding point in an embodiment.

[0028] Fig. 9 is a schematic view of a structure of an orientation assembly in an embodiment.

[0029] Fig. 10 is a schematic view of a flow of a preparation method in an embodiment.

[0030] Fig. 11 is a schematic view of a flow of a preparation method in an embodiment.

[0031] BRIEF DESCRIPTION OF DRAWINGS The following items are marked in the drawings: 100, bonded optical fiber ribbon; 10, optical fiber; 101, single-core optical fiber; 102, two-core optical fiber; 11, first functional area; 12, second functional area; 13, colored layer; 14, pretreatment layer; 20, connecting portion; 200, preparation device; 30, unwinding assembly; 40, bundling member; 50, dispensing member; 60, curing assembly; 61, first curing light box; 62, second curing light box; 70, output assembly; 80, orientation assembly; 81, first orientation wheel; 82, second orientation wheel; X, length direction; Y, width direction. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific embodiments described herein without departing from the scope of the present application, and it is understood that similar improvements can be made by those skilled in the art without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or unit referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or identifying the number of the indicated technical features. Thus, a feature defined with "first" or "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0035] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two units or the interaction relationship between two units, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0037] It should be noted that if a unit is referred to as "fixed to" or "provided to" another unit, it can be directly on another unit or there can be a middle unit. If a unit is considered to be "connected" to another unit, it can be directly connected to another unit or there can be a middle unit. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0038] Referring to FIG. 1, FIG. 1 shows a schematic diagram of a bonded optical fiber ribbon in an embodiment of the present application, the bonded optical fiber ribbon 100 includes a plurality of optical fibers 10 and connecting portions 20, the optical fibers 10 are single-core, the optical fibers 10 include a plurality of first functional areas 11 and a plurality of second functional areas 12, the plurality of first functional areas 11 and the plurality of second functional areas 12 are alternately and spacedly distributed along a length direction X of the optical fibers 10, the first functional areas 11 are provided with the connecting portions 20, the second functional areas 12 are blank areas, and the connecting portions 20 can be connected with blank areas of adjacent optical fibers 10. By alternately and spacedly arranging the first functional areas 11 and the second functional areas 12, the connecting portions 20 are connected with the blank areas of the adjacent optical fibers 10, so that the situation that the connecting portions 20 of the adjacent optical fibers 10 are interfered and misaligned with each other is avoided, the optical fibers 10 are arranged in order, and the bonding between the optical fibers 10 is more compact. In addition, in a width direction Y of the optical fibers 10, the number of the connecting portions 20 between each optical fiber 10 is reduced, the distance between the adjacent connecting portions 20 is reduced, and the density of the connecting portions 20 is reduced, so that the stress generated when the bonded optical fiber ribbon 100 is bent is relieved to some extent, and the flexibility of the bonded optical fiber ribbon 100 is increased.

[0039] As shown in FIGS. 1-3, the bonded optical fiber ribbon 100 can include 2, 3, 4 or other multiple optical fibers, and the bonded optical fiber ribbon 100 adopted in the embodiment includes a total of 12 optical fibers. Each optical fiber 10 includes a colored layer 13 and a pretreatment layer 14, the colored layer 13 includes blue fluorescent resin, and the pretreatment layer 14 includes at least one or more resins of P-20 resin, LJ-1388 resin, LJ-12510 resin and KG500 resin. In the embodiment, a section of the optical fiber 10 with a diameter ranging from 235-239 um is selected, the thickness of the colored layer 13 is 6-8 um, the diameter of the optical fiber 10 reaches 241-247 um at this time, the pretreatment layer 14 is coated on the colored layer 13 again, the thickness of the pretreatment layer 14 is 10-15 um, the final diameter of the optical fiber 10 is 251-265 um, and the interval between the adjacent connecting portions 20 provided on the same optical fiber 10 is set to 5 cm. The interval between the adjacent connecting portions 20 is the second functional area 12, which is also a blank area.

[0040] FIG. 2 is a schematic diagram of a cross section in the A direction of FIG. 1, and FIG. 3 is a schematic diagram of a cross section in the B direction of FIG. 1. As shown in FIGS. 2-3, each connecting portion 20 connects two optical fibers 10, and the second functional areas 12 of each optical fiber 10 are not connected with each other. This arrangement can realize the local connection of multiple optical fibers 10 while saving the cost of the connecting portions, avoid the situation that the connecting portions 20 of the adjacent optical fibers 10 are interfered and misaligned with each other, make the optical fibers 10 arranged in order, and make the bonding between the optical fibers 10 more compact.

[0041] In other embodiments, when global connection is needed, the connection portions 20 can be arranged in both the first functional area 11 and the second functional area 12, and the number of connection portions 20 arranged in the first functional area 11 is ensured to be greater than the number of connection portions 20 arranged in the second functional area 12, or the number of connection portions 20 arranged in the second functional area 12 is greater than the number of connection portions 20 arranged in the first functional area 11, so as to reduce the number of connection portions 20 between each optical fiber 10, thereby relieving the stress generated when the bonded optical fiber ribbon 100 is bent and increasing the flexibility of the bonded optical fiber ribbon 100. In addition, this arrangement also helps to reduce the situation that the connection portions 20 of adjacent optical fibers 10 are bonded to each other and interfere with each other, so as to ensure the stability and connection strength of the bonded optical fiber ribbon 100.

[0042] In the present embodiment, the connection portion 20 includes bonding points, and the number of bonding points can be configured to be 2-5, and the number of bonding points used in the present embodiment is 4. Different numbers and colors of bonding points are selected for testing, and the experimental data of the influence of the number of bonding points on the attenuation of the optical fiber is shown in the following table. When the number of bonding points is greater than 6, the attenuation of the optical fiber 10 is increased. Through testing, it is found that the number of bonding points between 2 and 5 is more appropriate, and the optical fiber 10 is not prone to attenuation. In addition, different colors of bonding points also have a certain influence on the attenuation of the optical fiber 10, and the appropriate color should be selected according to the specific situation.

[0043] In addition, the distance between adjacent bonding points in the present embodiment is set to be between 1mm and 3mm, and the length of the bonding point is set to be between 0.5mm and 1.5mm. If the distance is too large, the mesh effect will not be obvious, which may affect the connection strength. If the distance is too small, the bonding points will overlap and cannot play the expected role, and the height of the points will also be increased, which will increase the stress of the optical fiber 10 during rewinding. Therefore, selecting appropriate bonding point distance and length is a key step in preparing high-quality optical fiber 10 ribbon.

[0044] In other embodiments, the connection portion 20 can adopt other connection methods, for example, the connection portion 20 adopts a binding rope, and the binding rope can be arranged in at least one of the first functional area 11 and the second functional area 12, and the number of binding ropes arranged in the first functional area 11 is greater than the number of binding ropes arranged in the second functional area 12. The binding rope can pass through the hole (not shown) arranged in the first functional area 11 or the second functional area 12, or other feasible connection methods can be adopted, as long as the binding rope can be connected in the first functional area 11 or the second functional area 12, so as to realize the local connection of multiple optical fibers 10.

[0045] As shown in FIG. 4, in other embodiments, the optical fiber 10 comprises a plurality of single-core optical fibers 101 and a plurality of two-core optical fibers 102, each of the two-core optical fibers 102 is coated with a colored layer 13 and a pretreatment layer 14 on the outer side, each of the two-core optical fibers 102 is connected to each other through the pretreatment layer 14, the colored layer 13 comprises blue fluorescent resin, and the pretreatment layer 14 comprises at least one or more of P-20 resin, LJ-1388 resin, LJ-12510 resin, and KG500 resin, so that the adhesion between each of the two-core optical fibers 102 is better. The single-core optical fibers 101 and the two-core optical fibers 102 are alternately and spacedly arranged, the first functional area 11 and the second functional area 12 are alternately and spacedly distributed in the length direction of the single-core optical fibers 101 and the two-core optical fibers 102, the connecting part 20 is arranged in the first functional area 11, the second functional area 12 is a blank area, and the connecting part 20 can be connected to the blank area of the adjacent single-core optical fiber 101 or two-core optical fiber 102. This arrangement can realize the local connection of the plurality of optical fibers 10 while saving the cost of the connecting part, avoid the interference and misalignment of the connecting parts 20 of the adjacent optical fibers 10, and make the optical fibers 10 arranged in order and the adhesion between the optical fibers 10 more closely.

[0046] FIG. 5 is a schematic view of a cross section in the direction C in FIG. 1, and FIG. 6 is a schematic view of a cross section in the direction D in FIG. 1. As shown in FIGS. 5-6, each connecting part 20 connects two single-core optical fibers 101 and two-core optical fibers 102, and the second functional areas 12 of each single-core optical fiber 101 or two-core optical fiber 102 are not connected to each other. This arrangement can realize the local connection of the plurality of optical fibers 10 while saving the cost of the connecting part, avoid the interference and misalignment of the connecting parts 20 of the adjacent optical fibers 10, and make the optical fibers 10 arranged in order.

[0047] FIG. 7 shows a schematic view of a preparation device of the bonded optical fiber ribbon in an embodiment of the present application. The preparation device 200 comprises a wire laying assembly 30, a bundling member 40, a dispensing member 50, a curing assembly 60, and an output assembly 70. The wire laying assembly 30 is used to place and transport each optical fiber 10. The bundling member 40 is arranged on the same side of the wire laying assembly 30 and is used to synchronously pull all the optical fibers 10. The dispensing member 50 is used to periodically spray bonding points between the adjacent optical fibers 10 output by the bundling member 40. The dispensing member 50 can periodically spray on both sides of the optical fiber 10, so that the optical fiber 10 is uniformly stressed, the stress is reduced, and the optical fiber 10 is more easily bent. The curing assembly 60 is used to cure the optical fiber ribbon output by the dispensing member 50 to form the bonded optical fiber ribbon 100. The output assembly 70 is used to output the bonded optical fiber ribbon 100.

[0048] Specifically, the disclosed pay-off assembly 30 includes 12 pay-off racks for placing and transmitting 12 optical fibers 10, each of which includes a driving pay-off wheel 31, a driven pay-off wheel 32 and a synchronous wheel 33, and the optical fibers 10 are wound on the driving pay-off wheel 31, the synchronous wheel 32 and the driven pay-off wheel 33 in sequence to realize the transmission of the optical fibers 10, and the cooperation of the wheels reduces the occurrence of kinks in the optical fibers 10; the bundling member 40 includes a bundling wheel, and the 12 optical fibers 10 transmitted from the 12 pay-off racks are transmitted to the bundling wheel, and the bundling wheel can synchronously pull the 12 optical fibers 10 to one side of the dispensing member 50; the dispensing member 50 can adopt a piezoelectric ceramic dispensing valve, which uses the deformation of the piezoelectric ceramic to control the glue flow and the accurate position of dispensing, and mainly includes a piezoelectric ceramic valve, a control system and a dispensing head, the piezoelectric ceramic valve is the core component, the opening and closing of the valve is controlled by the change of voltage, so as to control the flow of glue and the position of dispensing, the control system is responsible for accurately controlling the opening and closing time of the valve and the flow of glue to ensure the accuracy of dispensing, and the dispensing head is responsible for periodically dispensing glue on both sides of the 12 optical fibers 10, and each of the optical fibers 10 is sprayed with interval arranged bonding points, and the bonding points are solidified by the solidifying assembly 60 to form the above-mentioned bonding type optical fiber ribbon 100.

[0049] In addition, the piezoelectric ceramic dispensing valve is adopted in the embodiment, and the position of the bonding point should be between the optical fibers 10 and the optical fibers 10, and since the optical fibers 10 exist unstable conditions such as shaking and shaking during the pulling process of the pay-off assembly 30 and the bundling member 40, the position of the connecting part 20 may exist deviation, as shown in FIG. 5.

[0050] As shown in FIG. 7, as shown in FIG. 9, the above-mentioned preparation device 200 further includes a directional assembly 80 for pressing the bonding points to make the bonding points smoother, and the flatness of the bonding type optical fiber ribbon 100 is less than 20um by using a geometric size measuring instrument, and the fusion splice loss of the optical fibers 10 in the later stage is reduced. Before the directional assembly 80 presses the bonding points, the bonding points are solidified by the solidifying assembly 60 to avoid the damage of the directional assembly 80 to the bonding points.

[0051] Specifically, the curing assembly 60 comprises a first curing lamp box 61 and a second curing lamp box 62, and a quartz tube (not shown) is arranged in each of the first curing lamp box 61 and the second curing lamp box 62. The outside of the first curing lamp box 61 and the second curing lamp box 62 is provided with a UV lamp connected with the central controller, and an optical fiber passes through the quartz tube. The UV lamp can irradiate and cure the bonding point of the optical fiber. The first curing lamp box 61 is used for curing the bonding point of the optical fiber 10 output from the dispensing part 50. The power of the UV lamp of the first curing lamp box 61 is controlled so that the curing degree of the bonding point is 30%. When the optical fiber 10 output from the first curing lamp box 61 passes through the orientation assembly 80, the orientation assembly 80 of the embodiment comprises a first orientation wheel 81 and a second orientation wheel 82. The optical fiber 10 can be pressed between the first orientation wheel 81 and the second orientation wheel 82, so that the bonding point of the optical fiber 10 is pressed to be smoother. The second curing lamp box 62 can be used to cure the bonding point of the optical fiber 10 output from the orientation assembly 80, further enhance the bonding force of the bonding point, and ensure that it has sufficient durability and reliability. In addition, after the pretreatment layer 14 of the optical fiber 10 is irradiated by the UV lamp, the bonding force between the pretreatment layer 14 and the bonding point is further enhanced by the enhancement effect of the special resin. At the same time, the pretreatment layer 14 irradiated by the UV lamp becomes softer and has higher plasticity, so that the bonding type optical fiber ribbon 100 is more suitable for different application occasions.

[0052] In other embodiments, the gap between the first orientation wheel 81 and the second orientation wheel 82 can be adjusted. Based on the thickness of the plurality of optical fibers 10, the gap between the first orientation wheel 81 and the second orientation wheel 82 is adjusted so that the plurality of optical fibers 10 can pass through smoothly while being pressed.

[0053] FIG. 10 shows a schematic diagram of a preparation method of a bonding type optical fiber ribbon in an embodiment of the present application. The bonding type optical fiber ribbon 100 is prepared by the preparation device of the bonding type optical fiber ribbon shown in FIG. 7. In combination with FIGS. 1-3, the preparation method of the bonding type optical fiber ribbon 100 comprises:

[0054] S1001: coloring the outer side of each optical fiber 10 to form a colored layer 13, and the curing degree of the colored layer 13 is below 85%;

[0055] Twelve optical fibers 10 with a diameter range of 235-239 um are selected, each optical fiber 10 is single-core, the thickness of the colored layer 13 is 6 um-8 um, and the colored layer 13 comprises blue fluorescent resin so as to display the position of the bonding point without affecting the identification of the optical fiber 10.

[0056] S1002: coating the colored layer 13 to form a pretreatment layer 14 on the outer side of the colored layer 13;

[0057] A pretreatment layer 14 is applied again on the colored layer 13, and the pretreatment layer 14 includes at least one or more of P-20 resin, LJ-1388 resin, LJ-12510 resin, and KG500 resin.

[0058] S1003: Periodically spraying the bonding points between the adjacent optical fibers 10 by the dispensing member 50;

[0059] The dispensing member 50 can be a piezoelectric ceramic dispensing valve, which uses the deformation of the piezoelectric ceramic to control the glue flow and the accurate position of dispensing. The dispensing head is responsible for periodically dispensing glue on both sides of the 12 optical fibers 10, and each optical fiber 10 is sprayed with bonding points arranged at intervals. At this time, the bonding points are soft in texture.

[0060] S1004: Curing the bonding points output from the dispensing member 50 by the first curing lamp box 61;

[0061] The first curing lamp box 61 can be used to cure the bonding points of the optical fibers 10 output from the dispensing member 50. The curing degree of the bonding points is within a certain range, which plays a key role in the bonding strength and reliability of the bonding type optical fiber ribbon 100. By controlling the power of the UV lamp of the first curing lamp box 61, the programmed precise control can be realized to ensure that the curing degree of the bonding points is within the appropriate range. Generally, controlling the curing degree at about 30% can effectively improve the bonding force between the bonding points and the pretreatment layer 14, and avoid problems such as loosening and coating peeling of the bonding points during use.

[0062] S1005: Pressing the bonding points by the directional assembly 80;

[0063] When the optical fibers 10 output from the first curing lamp box 61 pass through the directional assembly 80, the optical fibers 10 can be subjected to the pressure between the first directional wheel 81 and the second directional wheel 82, so that the bonding points of the optical fibers 10 are pressed and made smoother.

[0064] S1006: Curing the bonding points output from the directional assembly 80 by the second curing lamp box 62 to form the bonding type optical fiber ribbon 100.

[0065] The second curing lamp box 62 can be used to cure the bonding points of the optical fibers 10 output from the directional assembly 80, further enhancing the bonding force of the bonding points and ensuring that they have sufficient durability and reliability. In addition, after the pretreatment layer 14 of the optical fibers 10 is irradiated by the UV lamp, the bonding force between the pretreatment layer 14 and the bonding points can be further strengthened by the reinforcing effect of the special resin. At the same time, the pretreatment layer 14 after UV lamp irradiation becomes more soft and has higher plasticity, so that the bonding type optical fiber ribbon 100 is more suitable for different application occasions.

[0066] The adhesive optical fiber ribbon 100 prepared by the method has the first functional area 11 and the second functional area 12 alternately and spacedly arranged, the connecting portion 20 is connected with the blank area of the adjacent optical fiber 10, the connecting portions 20 of the adjacent optical fibers 10 are prevented from being interfered and misaligned with each other, the optical fibers 10 are arranged in order, the optical fibers 10 are closely adhered to each other, the damage of the optical fibers caused by the adhesive points can be reduced during peeling, the adhesive points are easily torn when the adjacent optical fibers 10 are torn, and the service life and the reprocessing performance of the adhesive optical fiber ribbon 100 are improved.

[0067] As shown in FIG. 11, in other embodiments, the optical fibers 10 are single-core optical fibers 101 and two-core optical fibers 102 alternately and spacedly arranged, and the method for preparing the adhesive optical fiber ribbon 100 further comprises:

[0068] S1101: The colored layer 13 is coated on each of the two-core optical fibers 102;

[0069] S1102: The pretreatment layer 14 is coated on each of the two-core optical fibers 102, and each of the two-core optical fibers 102 is adhered to each other through the pretreatment layer 14.

[0070] As shown in FIGS. 4-6, the colored layer 13 comprises blue fluorescent resin, and the pretreatment layer 14 comprises at least one or more of P-20 resin, LJ-1388 resin, LJ-12510 resin and KG500 resin, so that the adhesion between each of the two-core optical fibers 102 is better, in addition, after the pretreatment layer 14 is irradiated by the UV lamp, the adhesion between the pretreatment layer 14 and the adhesive points is further strengthened through the enhancement of the special resin, at the same time, the pretreatment layer 14 becomes more soft and has higher plasticity after being irradiated by the UV lamp, so that the adhesive optical fiber ribbon 100 is more suitable for different application occasions.

[0071] The technical features of the above embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0072] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A bonded optical fiber ribbon, characterized by, The bonded optical fiber ribbon comprises: a plurality of optical fibers, each of the optical fibers comprising a plurality of first functional regions and a plurality of second functional regions, the plurality of first functional regions and the plurality of second functional regions being alternately and periodically arranged along a length direction of the optical fiber; and a connecting portion arranged in at least one of the first functional regions and the second functional regions, for connecting the first functional region of each of the optical fibers with the second functional region of an adjacent optical fiber, and connecting the second functional region of each of the optical fibers with the first functional region of an adjacent optical fiber, the connecting portion comprising 2-5 bonding points, a distance between adjacent bonding points being 1-3 mm, a length of the bonding point being 0.5-1.5 mm, and the number of bonding points arranged in the first functional regions and the second functional regions being different.

2. The adhered optical fiber ribbon of claim 1, wherein Each of the bonding points is arranged in the first functional region, and the bonding point is capable of being connected with the second functional region of an adjacent optical fiber.

3. The adhered optical fiber ribbon of claim 1, wherein The optical fiber comprises a plurality of single-core optical fibers and a plurality of two-core optical fibers, the single-core optical fibers and the two-core optical fibers being alternately and periodically arranged, each of the single-core optical fibers and each of the two-core optical fibers being respectively provided with the first functional regions and the second functional regions which are alternately and periodically arranged along a length direction, and the first functional region of each of the single-core optical fibers is connected with the second functional region of an adjacent two-core optical fiber through the connecting portion, and the second functional region of each of the single-core optical fibers is connected with the first functional region of an adjacent two-core optical fiber through the connecting portion.

4. The bonded optical fiber ribbon of any of claims 1-3, wherein, The optical fiber comprises a pretreatment layer, the pretreatment layer comprising at least one or more of P-20 resin, LJ-1388 resin, LJ-12510 resin and KG500 resin.

5. An apparatus for manufacturing a bonded optical fiber ribbon, characterized by comprising: The preparation device comprises: a winding assembly comprising a winding rack for placing each of the optical fibers, the winding rack being used for transmitting the optical fibers; a bundling member arranged on the same side of the winding assembly and used for synchronously pulling all the optical fibers; a dispensing member arranged on one side of the bundling member and used for periodically spraying bonding points between adjacent optical fibers output by the bundling member; a curing assembly used for curing the optical fiber ribbon output by the dispensing member to form the bonded optical fiber ribbon according to any one of claims 1-5; and an output assembly used for outputting the bonded optical fiber ribbon.

6. The apparatus for manufacturing a bonded optical fiber ribbon according to claim 5, wherein The preparation device further comprises a directional assembly, the directional assembly comprising a first directional wheel and a second directional wheel, a gap between the first directional wheel and the second directional wheel being adjustable, and when the optical fiber output from the curing assembly passes between the first directional wheel and the second directional wheel, the optical fiber can be subjected to a pressure between the first directional wheel and the second directional wheel, so that the bonding points of the optical fiber are compressed.

7. The apparatus according to claim 5, wherein The curing assembly comprises a first curing lamp box and a second curing lamp box, the first curing lamp box and the second curing lamp box being arranged on opposite sides of the directional assembly, the first curing lamp box being used for curing the bonding points of the optical fiber output from the dispensing member, and the second curing lamp box being used for curing the bonding points of the optical fiber output from the directional assembly.

8. A method of manufacture, characterized by, A method of manufacturing a bonded optical fiber ribbon by the apparatus for manufacturing a bonded optical fiber ribbon according to any one of claims 6-8, the method comprising: coloring each of the outer sides of the optical fibers, each of the outer sides of the optical fibers forming a colored layer having a degree of curing of 85% or less; applying the colored layer, the colored layer forming a pretreatment layer on the outer sides of the colored layer; periodically ejecting bonding points between adjacent ones of the optical fibers by a dispensing member; curing the bonding points ejected from the dispensing member by a first curing light box; pressing the bonding points by a directional assembly; and curing the bonding points ejected from the directional assembly by a second curing light box, forming the bonded optical fiber ribbon.

9. The production method according to claim 8, characterized by, The bonded optical fiber ribbon includes single-core optical fibers and two-core optical fibers arranged in an alternating and spaced-apart manner, the method of manufacturing the bonded optical fiber ribbon further comprising: the colored layer is applied to each of the two-core optical fibers; the pretreatment layer is applied to each of the two-core optical fibers, and each of the two-core optical fibers is bonded to each other by the pretreatment layer.

10. The preparation method according to claim 8, characterized in that, The colored layer includes a blue fluorescent resin.

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