CN115308862B - Reelable optical fiber ribbon and adhesive dispensing device thereof - Google Patents
Reelable optical fiber ribbon and adhesive dispensing device thereof Download PDFInfo
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- CN115308862B CN115308862B CN202210948267.8A CN202210948267A CN115308862B CN 115308862 B CN115308862 B CN 115308862B CN 202210948267 A CN202210948267 A CN 202210948267A CN 115308862 B CN115308862 B CN 115308862B
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- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4403—Optical cables with ribbon structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0808—Details thereof, e.g. surface characteristics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0813—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for supplying liquid or other fluent material to the roller
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/448—Ribbon cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention discloses a windable optical fiber ribbon and a dispensing device thereof, and belongs to the technical field of optical fibers. The windable optical fiber ribbon comprises a two-core optical fiber ribbon and resin adhesive, wherein the resin adhesive is used for bonding the two-core optical fiber ribbon into a net structure, and the two-core optical fiber ribbon comprises two colored optical fibers and the resin adhesive used for wrapping the optical fibers; the adhesive dispensing device comprises an installation fixed frame, an adhesive coating movable group and an interval transmission assembly, wherein the adhesive coating movable group is movably installed on the installation fixed frame, the two-core optical fiber ribbon passes through the installation fixed frame and is pulled by an external winding device, the adhesive coating movable group is used for coating resin adhesive on the two-core optical fiber ribbon, and the interval transmission assembly is connected between the installation fixed frame and the adhesive coating movable group and used for controlling the adhesive coating movable group to be periodically close to the two-core optical fiber ribbon. The windable optical fiber ribbon provided by the invention is improved in the aspects of optical fiber arrangement structure, bonding mode and resin adhesive property, and is provided with a high-quality resin adhesive coating device, so that the sectional size of the windable optical fiber ribbon is reduced, the curling property is enhanced, and the preparation difficulty is reduced.
Description
Technical Field
The invention belongs to the technical field of optical fibers, and particularly relates to a windable optical fiber ribbon and a dispensing device thereof.
Background
In recent years, FTTx has been used in various applications and environments, and there has been an increasing demand for optical cables for access networks. The requirements of the domestic large-core number and ultra-large-core number optical cables are more and more, the application environment is more and more complex and various, in order to realize the high-density large-core number optical cables, the reelable net-shaped optical fiber ribbon has good flexibility compared with the conventional optical fiber ribbon, can be used after being reeled without influencing the optical performance of the optical fibers, and can realize the development of the high-density optical cables under the same volume.
In the prior art, a conventional optical fiber ribbon is an encapsulated optical fiber ribbon formed by arranging a plurality of colored optical fibers side by side and then bonding the colored optical fibers together by using transparent resin, wherein the surface between each optical fiber is uniformly coated with the resin. The conventional optical fiber ribbon is arranged according to a matrix in use, the torsion force born by two optical fibers at the outermost edge in the winding and twisting process is necessarily larger than that of other optical fibers, the optical fiber transmission loss at four corners of the matrix is difficult to effectively control, from the experimental data, the optical fiber attenuation index at the four corners is at the level of 0.23db/km, and the attenuation index of other optical fibers in the matrix is below 0.19 db/km; in addition, as the number of cores increases, the space occupied by the ribbon matrix increases, and the diameter of the optical cable is generally more than 25 mm, which represents that the application of the optical fibers with the matrix arrangement structure in the optical cable with large core number and ultra-large core number occupies a larger space and the bending and winding capacity is insufficient.
The windable optical fiber ribbon is formed by arranging a plurality of colored optical fibers side by side along the optical fibers and bonding the optical fibers on one side surface of the optical fibers by adopting bonding adhesive tapes in pairs. The diameter of the colored optical fiber is 250um, the difficulty of bonding adhesive tapes between the optical fiber belts is high, the situation that the bonding adhesive tape is easy to fall off or poor in bonding occurs, the defects of the existing windable optical fiber belt in bonding materials and bonding modes are reflected, the bonding force between the optical fibers of the optical fiber belt in the large-amplitude winding process is insufficient, and the optical fiber belt is easy to crack.
In summary, the key factors influencing the flexibility and the cross-sectional dimension of the optical fiber ribbon are three aspects of the optical fiber arrangement structure, the bonding mode and the resin coating amount, and the existing optical fiber ribbon has the defects of large cross-sectional dimension, poor curling property, high preparation difficulty and the like.
Disclosure of Invention
The invention aims to: a windable optical fiber ribbon is provided, and a dispensing device for producing the windable optical fiber ribbon is provided to solve the above problems in the prior art.
The technical scheme is as follows: the windable optical fiber ribbon comprises two-core optical fiber ribbons and resin adhesive, wherein a plurality of the two-core optical fiber ribbons are arranged in parallel, and the resin adhesive is adhered between the side walls of the adjacent two-core optical fiber ribbons at intervals and is used for adhering the two-core optical fiber ribbons into a net-shaped structure; the two-core optical fiber ribbon comprises two colored optical fibers and resin adhesive for wrapping the optical fibers.
Further, the resin glue is UV light curing glue; the resin viscosity of the resin adhesive is between 4800cps and 6000 cps; the viscosity of the resin is too large, larger internal stress can occur in the process of resin coating, the control of the resin coating amount is not facilitated, the viscosity of the resin is too low, the coated resin can naturally drop before solidification, so that a phenomenon of single-sided coating is formed, the preferable viscosity range of the resin glue ensures that the elongation of the coated resin is more than 60%, the solidification shrinkage is more than 1.95%, and the two parameters ensure the toughness of the coated resin after UV solidification, namely, the optical fibers can still keep good connectivity after the optical fiber ribbon is twisted to the maximum extent.
Further, the thickness of the resin adhesive adhered to the side surface of the two-core optical fiber ribbon after being solidified is smaller than the diameter of the optical fiber; the optimal value of the thickness of the resin is 150-180 um after the resin is solidified, the minimum torsion diameter of the optical fiber ribbon can be lower than 2.5mm when the thickness of the resin is in the range, the tearing force is larger than 300g, and the optical fiber has no attenuation increase phenomenon after torsion.
The utility model provides a can wind optical fiber ribbon and use some glue devices, includes that installation fixed frame, rubber coating move group and interval drive assembly, rubber coating move group movable mounting on the installation fixed frame, two core optical fiber ribbon pass the installation fixed frame and receive external coiling mechanism traction, the installation fixed frame is used for maintaining the motion of two core optical fiber ribbon stable, rubber coating move the group and be connected with external resin and glue feeding device, rubber coating move the group and be used for to two core optical fiber ribbon coating resin and glue, interval drive assembly connects and moves between group at the installation fixed frame and rubber coating for control rubber coating moves the periodic two core optical fiber ribbon that is close to of group.
Further, the installation fixed frame comprises a vertical plate, a transverse plate and an optical fiber guiding component, wherein the vertical plate is installed on the outer end face, the transverse plate is installed on the vertical plate, a motor groove is formed in the transverse plate, the optical fiber guiding component is installed above the motor groove of the transverse plate, the optical fiber guiding component comprises a fixed support, a stacking frame and an optical fiber bracket, the fixed support is installed above the motor groove of the transverse plate, the stacking frame is installed on the fixed support, a plurality of optical fiber brackets are longitudinally distributed on the stacking frame, and the two-core optical fiber ribbon passes through the optical fiber bracket; the installation fixed frame provides support for the smooth running of the two-core optical fiber ribbon, provides an installation station for the interval transmission assembly, and is a base structure for smooth implementation of gluing.
Further, the gluing movable set comprises a movable set sliding rail, a movable plate, a servo motor, a glue injection assembly, a glue coating wheel and a transmission gear set, wherein the sliding rail is arranged on the transverse plate, the movable plate is slidably arranged on the transverse plate, the servo motor is arranged in a motor groove, the output end of the servo motor is connected with a speed reducer, the speed reducer is arranged on the lower end face of the transverse plate, the output end of the speed reducer penetrates through the transverse plate, the speed reducer is in transmission connection with the transmission gear set, the glue coating wheel is arranged on the transmission gear set, the glue injection assembly is arranged on the movable plate, and the glue coating wheel is matched with the glue injection assembly; the gluing dynamic group quantitatively supplies resin glue to the gluing wheel, and realizes periodical gluing action through rotation of the gluing wheel, so that the accurate gluing quantity on the two-core optical fiber ribbon is ensured, and the gluing interval is accurate.
Further, the interval transmission assembly comprises a movable group pulling plate, a roller follower, a pull-back spring and a transmission cam, wherein the transmission cam is arranged on the transmission gear group, the roller follower is arranged on the fixed bracket, the roller follower is matched with the transmission cam, the movable group pulling plate is arranged on the fixed bracket, and the pull-back spring is arranged between the movable group pulling plate and the movable plate and is used for being matched with the transmission cam; the transmission cam and the pull-back spring of the interval transmission assembly are matched with the output of the servo motor, so that the gluing process of the gluing movable group is close to the two-core optical fiber ribbon, the non-gluing process is far away from the two-core optical fiber ribbon, and the resin glue is uniformly coated on the side surface of the optical fiber in a fixed length and an adjustable period.
Further, the glue coating wheel is of a cam structure, is connected to the output end of the servo motor through an internal shaft hole key and is fixed through a fastening hole through a fastening screw, and is provided with a glue coating groove for storing resin glue output by the glue injection assembly; the gluing groove is matched with the two-core optical fiber ribbon which moves linearly in a rotating gesture, the gluing area of the gluing groove is larger, and compared with a traditional gluing hole, the gluing groove can eliminate the wire drawing phenomenon generated by resin flowing cutting, and can also avoid the accumulation point formed by the internal stress of the resin after coating.
Further, the glue injection assembly comprises a glue injection seat, a glue injection sliding rail, a sliding block, a spring shaft, a laminating spring and a glue spreading nozzle, wherein the glue injection seat is arranged on the movable plate, the glue injection sliding rail is arranged on the glue injection seat, the sliding block is arranged on the glue injection sliding rail, the spring shaft is arranged on the glue injection seat and extends into the sliding block, the laminating spring is arranged between the sliding block and the glue injection seat, and a plurality of glue spreading nozzles are stacked on the sliding block; the glue injection assembly provides a movable mounting mode for the glue spreading nozzle, the movable glue spreading nozzle is used for being matched with a cam structure of the glue spreading wheel, and resin glue is smoothly supplied into a glue spreading groove of the glue spreading wheel when a gap exists between the glue spreading nozzle and the glue spreading wheel.
Further, the glue spreading nozzle is installed on the sliding block through the installation hole by a screw, a glue injection channel is formed in the glue spreading nozzle, a glue injection port of the glue injection channel is connected with an external resin glue supply device, a glue outlet of the glue injection channel is matched with the glue spreading groove, the end face of the glue outlet of the glue spreading nozzle is in a cambered surface structure, and the cambered surface structure is matched with the glue spreading wheel; the cambered surface structure on the rubber coating mouth and the non-working stroke cooperation of cam avoid the leakage of resin glue, and working stroke and cambered surface structure cooperation form the clearance, are favorable to the rubber coating mouth to go out the glue, guarantee to supply gluey smooth going on.
The beneficial effects are that: the windable optical fiber ribbon disclosed by the invention is free from the constraint of the traditional optical fiber outer full-wrapping resin in a mode of bonding the two-core optical fiber ribbon by using the resin adhesive, and the problem of increased threading attenuation in the twisting and winding process is solved; in addition, the optical fiber ribbons with good torsion winding performance can be twisted into bundles, and the occupied space of the optical fibers under the same core number is obviously smaller than that of the optical cable structure arranged in a matrix, so that the optical fiber space is effectively compressed, the optical fiber density is improved, and the effects of smaller optical cable diameter and larger optical fiber core number are achieved; in addition, the invention limits the viscosity and the use temperature of the resin adhesive, and the selected range of the resin adhesive ensures that the elongation of the coating resin is more than 60 percent and the curing shrinkage is more than 1.95 percent, and the two parameters ensure the toughness of the coating resin after UV curing, namely that the optical fibers can still maintain good connectivity after the optical fiber ribbon is twisted to the maximum extent.
The glue dispensing device disclosed by the invention is used for gluing in a mode of combining the rotation of the glue coating wheel with the linear motion of the two-core optical fiber ribbon, the glue coating groove is formed in the glue coating wheel, resin glue can be accurately supplied to the glue coating groove, the thickness of the resin can be accurately controlled, the wire drawing phenomenon generated by resin flowing and cutting can be eliminated in the coating process by the glue coating groove structure, the accumulation point formed by the internal stress of the resin after coating can be avoided, the resin is uniformly coated on the side surface of the optical fiber in a fixed length and adjustable period, the glue coating difficulty is low, and the effect is good.
In summary, the windable optical fiber ribbon according to the present invention is improved in terms of the optical fiber arrangement structure, the bonding manner and the resin adhesive property, and is equipped with a high-quality resin adhesive coating device, so that the sectional size of the windable optical fiber ribbon is reduced, the curling property is enhanced, and the manufacturing difficulty is reduced.
Drawings
Fig. 1 is a schematic diagram of a mesh optical tape according to the present invention.
Fig. 2 a is a cross-sectional view of a 12-core mesh light band after single-core bonding according to the present invention.
B in fig. 2 is a cross-sectional view of a 12-core mesh optical fiber ribbon after the two-core optical fiber ribbon is bonded in accordance with the present invention.
Fig. 2 c is a cross-sectional view of a 12-core mesh optical fiber ribbon following a three-core optical fiber ribbon according to the present invention.
FIG. 3 is a schematic diagram of the viscosity temperature of the resin according to the invention.
FIG. 4 is a schematic representation of a dynamic mechanical analysis of a resin according to the invention.
Fig. 5 is a schematic structural view of the dispensing device of the invention.
Fig. 6 is a schematic view of the structure of the mounting bracket in the invention.
Fig. 7 is a schematic structural view of the adhesive applying movable set.
Fig. 8 is a schematic structural view of the glue injection assembly of the invention.
Fig. 9 is a schematic view of the structure of the glue nozzle according to the invention.
Fig. 10 is a schematic structural view of the glue wheel of the invention.
The reference numerals are: 1. installing a fixed frame; 2. a riser; 3. a cross plate; 4. a motor slot; 5. an optical fiber guide assembly; 6. a fixed bracket; 7. a movable group pulling plate; 8. a stacking rack; 9. an optical fiber bracket; 10. a roller follower; 11. gluing a movable group; 12. a movable group slide rail; 13. a movable plate; 14. a servo motor; 15. a pull-back spring; 16. injecting glue assembly; 17. a glue injection seat; 18. a glue injection slide rail; 19. a slide block; 20. a spring shaft; 21. attaching a spring; 22. a glue spreading nozzle; 23. a mounting hole; 24. a glue injection port; 25. a glue outlet; 26. coating a glue wheel; 27. a shaft hole; 28. a gluing groove; 29. a fastening hole; 30. a drive tooth set; 31. a two-core optical fiber ribbon; 32. resin glue; 33. a mesh-shaped optical line ribbon; 34. a single core; 35. a three-core optical fiber ribbon.
Description of the embodiments
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention.
Examples
In order to provide an optical fiber ribbon with compact optical fiber arrangement, small section size and strong winding characteristics, embodiment 1 is proposed;
the optical fibers may be bonded between individual ones of the resin glue 32 or between ribbons, but the flexibility, fusion effect and twisted diameter will vary considerably.
As shown in a of fig. 2, the 12-core net-shaped optical fiber ribbon after the single core 34 is bonded has the smallest diameter after torsion but the fusion success rate between the optical fiber ribbons is only 20%, and this optical fiber bonding manner affects the service performance of the optical fiber ribbon, which is not the best solution.
As shown in c of fig. 2, the fusion-splicing success rate of the 12-core net-shaped optical fiber ribbon after the three-core optical fiber ribbon 35 is bonded is 100%, but the diameter after twisting is more than 3mm, and the structural fracture phenomenon occurs after twisting, which is not the optimal solution.
As shown in b of fig. 2, the fusion success rate of the 12-core mesh-shaped optical fiber ribbon bonded by the two-core optical fiber ribbon 31 is 100%, and the diameter after torsion is 2.2mm at the maximum, so that the optical fiber in the present invention adopts the b scheme as shown in fig. 2 as the best through data study.
As shown in fig. 1, a windable optical fiber ribbon includes two-core optical fiber ribbons 31 and a resin adhesive 32, wherein a plurality of the two-core optical fiber ribbons 31 are arranged in parallel, and the resin adhesive 32 is adhered between the side walls of adjacent two-core optical fiber ribbons 31 at intervals for adhering the two-core optical fiber ribbons 31 into a net structure; the two-core optical fiber ribbon 31 includes two colored optical fibers and a resin paste 32 for wrapping the optical fibers.
The thickness of the resin adhesive 32 adhered to the side surface of the two-core optical fiber ribbon 31 after curing is smaller than the diameter of the optical fiber, the optimal value of the thickness of the resin-coated optical fiber ribbon after curing is 150-180 um, the minimum torsion diameter of the optical fiber ribbon can be lower than 2.5mm when the thickness of the resin is in the range, the tearing force is larger than 300g, and the optical fiber after torsion has no attenuation increase phenomenon.
The resin adhesive 32 is selected as UV light curing adhesive, in order to control the influence of the performance of the resin adhesive 32 on the performance of the optical fiber ribbon, as shown in fig. 5-6, the resin viscosity of the resin adhesive 32 is between 4800cps and 6000cps, the resin viscosity is too high, larger internal stress can occur in the resin coating process, the control of the resin coating amount is not facilitated, the resin viscosity is too low, the coated resin can naturally drop before curing, thus forming a phenomenon of single-sided coating, the preferable resin adhesive 32 has the resin viscosity range that the elongation of the coated resin is more than 60 percent and the curing shrinkage is more than 1.95 percent, the two parameters ensure the toughness of the coated resin after UV curing, namely the optical fiber ribbon can still maintain good connectivity after being twisted to the maximum extent, wherein the viscosity of the resin adhesive 32 is required to be matched with the indication of a viscosity-temperature curve to properly select the coating temperature of the resin adhesive 32.
Examples
Based on the windable optical fiber ribbon proposed in embodiment 1, in order to meet the requirement of the optical fiber ribbon in the dispensing process, a dispensing device for windable optical fiber ribbon is proposed;
as shown in fig. 5, a dispensing device for a windable optical fiber ribbon includes a mounting frame 1, a gluing moving group 11 and an interval transmission assembly, wherein the gluing moving group 11 is movably mounted on the mounting frame 1, a two-core optical fiber ribbon 31 passes through the mounting frame 1 and is pulled by an external winding device, the mounting frame 1 is used for maintaining stable movement of the two-core optical fiber ribbon 31, the gluing moving group 11 is connected with an external resin glue 32 supply device, the gluing moving group 11 is used for coating the resin glue 32 on the two-core optical fiber ribbon 31, and the interval transmission assembly is connected between the mounting frame and the gluing moving group 11 and is used for controlling the gluing moving group 11 to be periodically close to the two-core optical fiber ribbon 31.
As shown in fig. 6, the installation fixing frame 1 comprises a vertical plate 2, a transverse plate 3 and an optical fiber guiding component 5, wherein the vertical plate 2 is installed on the external end surface, the transverse plate 3 is installed on the vertical plate 2, a motor groove 4 is formed in the transverse plate 3, the optical fiber guiding component 5 is installed above the motor groove 4 of the transverse plate 3, the optical fiber guiding component 5 comprises a fixed bracket 6, a stacking frame 8 and an optical fiber bracket 9, the fixed bracket 6 is installed above the motor groove 4 of the transverse plate 3, the stacking frame 8 is installed on the fixed bracket 6, a plurality of optical fiber brackets 9 are longitudinally distributed on the stacking frame 8, and a two-core optical fiber ribbon 31 passes through the optical fiber bracket 9; the mounting fixture 1 provides support for smooth operation of the two-core optical fiber ribbon 31 and provides a mounting station for the spacer transmission assembly, and is a base structure for smooth implementation of glue application.
As shown in fig. 7, the glue spreading movable group 11 comprises a movable group sliding rail 12, a movable plate 13, a servo motor 14, a glue injection assembly 16, glue spreading wheels 26 and a transmission gear group 30, wherein the sliding rail is arranged on the transverse plate 3, the movable plate 13 is arranged on the transverse plate 3 in a sliding manner, the servo motor 14 is arranged in the motor groove 4, the output end of the servo motor 14 is connected with a speed reducer, the speed reducer is arranged on the lower end surface of the transverse plate 3, the output end penetrates through the transverse plate 3, the speed reducer is in transmission connection with the transmission gear group 30, the glue spreading wheels 26 are arranged on the transmission gear group 30, the glue injection assembly 16 is arranged on the movable plate 13, and the glue spreading wheels 26 are matched with the glue injection assembly 16; the glue spreading movable group 11 quantitatively supplies the resin glue 32 to the glue spreading wheel 26, and realizes periodical glue spreading action through rotation of the glue spreading wheel 26, so that the glue spreading amount on the two-core optical fiber ribbon 31 is ensured to be accurate, and the glue spreading interval is ensured to be accurate.
As shown in fig. 6 to 7, the interval transmission assembly comprises a movable group pulling plate 7, a roller follower 10, a pull-back spring 15 and a transmission cam, wherein the transmission cam is installed on a transmission gear group 30, the roller follower 10 is installed on a fixed bracket 6, the roller follower 10 is matched with the transmission cam, the movable group pulling plate 7 is installed on the fixed bracket 6, and the pull-back spring 15 is installed between the movable group pulling plate 7 and the movable plate 13 and is used for being matched with the transmission cam; the transmission cam of the interval transmission assembly and the pull-back spring 15 are matched with the output of the servo motor 14 to enable the gluing process of the gluing movable group 11 to be close to the two-core optical fiber ribbon 31, the non-gluing process is far away from the two-core optical fiber ribbon 31, and the resin glue 32 is uniformly coated on the side face of the optical fiber in a fixed length and adjustable period.
As shown in fig. 10, the glue spreading wheel 26 is in a cam structure, the glue spreading wheel 26 is connected to the output end of the servo motor 14 through an internal shaft hole 27 in a key manner and is fixed through a fastening hole 29 through a fastening screw, a glue spreading groove 28 is formed in the glue spreading wheel 26, and the glue spreading groove 28 is used for storing resin glue 32 output by the glue injection assembly 16; the glue coating groove 28 is matched with the two-core optical fiber belt 31 which moves linearly in a rotating gesture, the glue coating area of the glue coating groove 28 is large, compared with a traditional glue coating hole, the glue coating groove 28 can eliminate the wire drawing phenomenon generated by resin flow cutting, and can also avoid accumulation points formed by internal stress of resin after coating.
As shown in fig. 8, the glue injection assembly 16 includes a glue injection seat 17, a glue injection slide rail 18, a slide block 19, a spring shaft 20, a laminating spring 21 and glue nozzles 22, the glue injection seat 17 is mounted on the movable plate 13, the glue injection slide rail 18 is mounted on the glue injection seat 17, the slide block 19 is arranged on the glue injection slide rail 18, the spring shaft 20 is mounted on the glue injection seat 17 and extends into the slide block 19, the laminating spring 21 is arranged between the slide block 19 and the glue injection seat 17, and a plurality of glue nozzles 22 are stacked on the slide block 19; the glue assembly 16 provides a movable mounting for the glue nozzle 22. The movable glue nozzle 22 is adapted to cooperate with the cam structure of the glue wheel 26 to provide a smooth supply of the resin glue 32 into the glue slot 28 of the glue wheel 26 when there is a gap between the glue nozzle 22 and the glue wheel 26.
As shown in fig. 9, a glue spreading nozzle 22 is mounted on a slide block 19 through a mounting hole 23 by a screw, a glue injection channel is arranged on the glue spreading nozzle 22, a glue injection port 24 of the glue injection channel is connected with an external resin glue 32 supply device, a glue outlet 25 of the glue injection channel is matched with a glue spreading groove 28, the glue spreading nozzle 22 is in an arc surface structure on the end surface of the glue outlet 25, and the arc surface structure is matched with a glue spreading wheel 26; the cambered surface structure on the glue spreading nozzle 22 is matched with the non-working stroke of the cam to avoid the leakage of the resin glue 32, and the working stroke is matched with the cambered surface structure to form a gap, so that the glue spreading nozzle 22 can be used for discharging glue, and the smooth glue supply is ensured.
When the dispensing device is used, the optical fiber ribbon with the structure shown in the structure b in fig. 2 needs to be prepared in advance, then the two-core optical fiber ribbon 31 passes through the optical fiber bracket 9 and makes uniform linear motion, in the process of coating, resin glue 32 enters from the glue injection port 24 and is discharged from the glue outlet 25, when the resin glue 32 is discharged from the glue coating nozzle 22, the working stroke of the glue coating wheel 26 starts to be matched with the cambered surface structure of the glue coating nozzle 22, the gap between the glue coating wheel 26 and the glue coating nozzle 22 enables the resin glue 32 to be smoothly discharged, and the glue coating groove 28 is gradually filled with the resin glue 32 along with the rotation of the glue coating wheel 26, and then the glue coating groove 28 turns to the two-core optical fiber ribbon 31;
at this time, the working stroke of the driving cam is far away from the roller follower 10, the glue spreading movable group 11 is pulled to be close to the two-core optical fiber ribbon 31 under the deformation recovery action of the back-pulling spring 15 until the resin glue 32 in the glue spreading groove 28 is spread on the two-core optical fiber ribbon 31, the spreading process comprises the rotation of the glue spreading groove 28 and the linear motion of the two-core optical fiber ribbon 31, the thickness of the resin glue can be precisely controlled, the wire drawing phenomenon caused by resin flow cutting does not exist, the accumulation point formed by the internal stress of the resin after the coating can be avoided, and the resin glue can be controlled to be uniformly coated on the side surface of the two-core optical fiber ribbon 31 in a fixed length according to the rotation speed of the glue spreading wheel 26 and the linear motion speed of the two-core optical fiber ribbon 31;
after the gluing is finished, under the action of the transmission cam, the gluing movable group 11 is far away from the two-core optical fiber ribbon 31, the two-core optical fiber ribbon 31 after the multi-glue gluing can be adhered to form a net-shaped optical fiber ribbon 33 through the threading die, the optical fiber ribbon in the net-shaped optical fiber ribbon 33 has a good optical fiber arrangement structure, the whole structure of the net-shaped optical fiber ribbon 33 is compact, the winding property of the net-shaped optical fiber ribbon 33 is strong due to the characteristic of the resin glue 32, and the problem of attenuation increase in the torsion winding process can be avoided.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various equivalent changes can be made to the technical solutions of the present invention within the scope of the technical concept of the present invention, and all such equivalent changes belong to the scope of the present invention.
Claims (5)
1. The utility model provides a can wind adhesive deposite device for optical fiber ribbon, can wind optical fiber ribbon includes two core optical fiber ribbon (31) and resin glue (32), a plurality of two core optical fiber ribbon (31) are arranged side by side, resin glue (32) interval bonds between the lateral wall of adjacent two core optical fiber ribbon (31) for bond two core optical fiber ribbon (31) into network structure, wherein, two core optical fiber ribbon (31) include two coloring optic fibre and are used for wrapping up resin glue (32) of coloring optic fibre, its characterized in that: the device comprises a mounting fixed frame (1), a gluing movable group (11) and an interval transmission assembly, wherein the gluing movable group (11) is movably mounted on the mounting fixed frame (1), a two-core optical fiber ribbon (31) passes through the mounting fixed frame (1) and is pulled by an external winding device, the mounting fixed frame (1) is used for maintaining stable movement of the two-core optical fiber ribbon (31), the gluing movable group (11) is connected with an external resin adhesive supply device, the gluing movable group (11) is used for coating resin adhesive (32) on the two-core optical fiber ribbon (31), and the interval transmission assembly is connected between the mounting fixed frame (1) and the gluing movable group (11) and is used for controlling the gluing movable group (11) to be periodically close to the two-core optical fiber ribbon (31);
the installation fixed frame (1) comprises a vertical plate (2), a transverse plate (3) and an optical fiber guide assembly (5), wherein the vertical plate (2) is installed on the outer end face, the transverse plate (3) is installed on the vertical plate (2), a motor groove (4) is formed in the transverse plate (3), and the optical fiber guide assembly (5) is installed above the motor groove (4) of the transverse plate (3); the optical fiber guiding assembly (5) comprises a fixed support (6), a stacking frame (8) and optical fiber brackets (9), wherein the fixed support (6) is arranged above a motor groove (4) of the transverse plate (3), the stacking frame (8) is arranged on the fixed support (6), a plurality of optical fiber brackets (9) are longitudinally distributed on the stacking frame (8), and the two-core optical fiber ribbons (31) penetrate through the optical fiber brackets (9);
the gluing movable unit (11) comprises a movable unit sliding rail (12), a movable plate (13), a servo motor (14), a glue injection assembly (16), a gluing wheel (26) and a transmission gear group (30), wherein the sliding rail (12) is arranged on the transverse plate (3), the movable plate (13) is slidably arranged on the transverse plate (3), the servo motor (14) is arranged in a motor groove (4), the output end of the servo motor (14) is connected with a speed reducer, the speed reducer is arranged on the lower end surface of the transverse plate (3), the output end penetrates through the transverse plate (3), the speed reducer is in transmission connection with the transmission gear group (30), the gluing wheel (26) is arranged on the transmission gear group (30), the glue injection assembly (16) is arranged on the movable plate (13), and the gluing wheel (26) is matched with the glue injection assembly (16).
The glue injection assembly (16) comprises a glue injection seat (17), a glue injection sliding rail (18), a sliding block (19), a spring shaft (20), a laminating spring (21) and glue spreading nozzles (22), wherein the glue injection seat (17) is arranged on a movable plate (13), the glue injection sliding rail (18) is arranged on the glue injection seat (17), the sliding block (19) is arranged on the glue injection sliding rail (18), the spring shaft (20) is arranged on the glue injection seat (17) and extends into the sliding block (19), the laminating spring (21) is arranged between the sliding block (19) and the glue injection seat (17), and a plurality of glue spreading nozzles (22) are stacked on the sliding block (19);
glue spreading nozzle (22) pass mounting hole (23) through the screw and install on slider (19), glue injecting channel has been seted up on glue spreading nozzle (22), glue injecting port (24) and external resin of glue injecting channel glue feeding device are connected, glue outlet (25) and glue spreading groove (28) cooperation of glue injecting channel, glue spreading nozzle (22) are the cambered surface structure at the terminal surface of glue outlet (25), and this cambered surface structure cooperates with glue spreading wheel (26).
2. The dispensing device for a rollable optical fiber ribbon according to claim 1, wherein: the resin glue (32) is a UV light curing glue; the resin viscosity of the resin paste (32) is between 4800cps and 6000 cps.
3. The dispensing device for a rollable optical fiber ribbon according to claim 2, wherein: the thickness of the resin adhesive (32) adhered to the side surface of the two-core optical fiber ribbon (31) after solidification is smaller than the diameter of the optical fiber.
4. The dispensing device for a rollable optical fiber ribbon according to claim 1, wherein: the interval transmission assembly comprises a movable group pulling plate (7), a roller follower (10), a pull-back spring (15) and a transmission cam, wherein the transmission cam is arranged on a transmission gear group (30), the roller follower (10) is arranged on a fixed support (6), the roller follower (10) is matched with the transmission cam, the movable group pulling plate (7) is arranged on the fixed support (6), and the pull-back spring (15) is arranged between the movable group pulling plate (7) and the movable plate (13) and is used for being matched with the transmission cam.
5. The dispensing device for a rollable optical fiber ribbon according to claim 4, wherein: the gluing wheel (26) is of a cam structure, the gluing wheel (26) is connected to the output end of the servo motor (14) through an internal shaft hole (27) in a key mode and is fixed through a fastening hole (29) through a fastening screw, a gluing groove (28) is formed in the gluing wheel (26), and the gluing groove (28) is used for storing resin glue (32) output by the glue injection assembly (16).
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| CN202210948267.8A CN115308862B (en) | 2022-08-08 | 2022-08-08 | Reelable optical fiber ribbon and adhesive dispensing device thereof |
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| CN202210948267.8A CN115308862B (en) | 2022-08-08 | 2022-08-08 | Reelable optical fiber ribbon and adhesive dispensing device thereof |
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| CN115308862A CN115308862A (en) | 2022-11-08 |
| CN115308862B true CN115308862B (en) | 2023-08-25 |
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| CN115308862A (en) | 2022-11-08 |
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