CN204792199U - Optic fibre is put around packing - Google Patents

Abstract

The utility model discloses an optical fiber wrapping device, which belongs to the field of cable production equipment, and comprises a frame and a motor. It is connected with the motor drive and can rotate with the axis of the cable as the central axis. There is at least one fiber optic disk unit on the capstan body, and a copper wire disk unit is arranged on both sides of each fiber optic disk unit. The three-eye wire-passing mold with the same number of disk units, the three-eye wire-passing mold is provided with a through hole that can pass through the cable, the three-eye wire-passing mold is fixed relative to the frame, and one optical fiber and two copper wires pass through the three-eye wire-passing mold respectively. The three wire eyes of the wire mode can quickly wind the optical fiber on the surface of the cable through the rotation of the winch to avoid twisting of the optical fiber. Each optical fiber uses a copper wire on each side as protection to reduce the probability of optical fiber damage.

Description

Fiber wrapping device

technical field

The utility model relates to the field of cable production equipment, in particular to an optical fiber wrapping device.

Background technique

The high-voltage optical fiber composite cable uses the temperature-measuring optical fiber laid inside or close to its surface to realize real-time online monitoring of the temperature of the high-voltage cable. The requirement is to attach one or two temperature-measuring optical fibers to the outside of the cable insulation layer. Due to the large diameter of the cable, when the cable is bent, the outer length will be elongated. Therefore, when attaching the optical fiber to the cable, the optical fiber must be attached to the surface of the cable in an S shape, so as to ensure that the optical fiber will not be pulled off at any time. The optical fiber composite production method is at the front end of the buffer tape wrapping. An operator places the optical fiber on the cable insulation core in a serpentine or S shape along the length of the cable. The optical fiber is glued to the surface of the insulated core of the cable, and then two layers of semi-conductive buffer tape are covered on the optical fiber glued with adhesive tape for protection. Both sides of the semi-conductive buffer tape are glued to the serpentine peak of the optical fiber with adhesive tape. When the cable is being pulled forward, while the fiber is artificially compounded on the surface of the cable insulation, the wrapping head is used to wrap two layers of buffer water-blocking tape outside the cable insulation. Because the optical fiber is artificially arranged in an S shape, glued firmly with adhesive tape, and then wrapped with a wrapping tape, its defect is low efficiency, high labor intensity for operators, irregular S shape, and unsatisfactory effect. And if meet the joint of semi-conductive buffer belt, also need to stick with adhesive tape upper and lower two layers, this manual operation method also has potential safety hazard.

The Chinese patent application number 201310485524X discloses an optical fiber S-shaped swing device and a production method for high-voltage optical fiber composite cables that solve the above problems. However, when developing 220kV ultra-high voltage temperature measuring cables, the problem of the attachment of optical fibers still becomes a problem in production. big problem. Because this kind of large-size split cable will always have a rotation during the taping process, the conductor is a split structure, and the cable diameter is too large, which is basically similar to the cable tube, resulting in the S-shaped swing attachment method here. It cannot be used. Therefore, the optical fiber can only be slowly attached to the surface of the cable in a winding manner by manual winding, and then wrapped by tape, so the production efficiency is extremely low.

Contents of the invention

The purpose of the utility model is to provide an optical fiber wrapping device, which can quickly attach the optical fiber to the surface of the cable by winding.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the optical fiber wrapping device includes a frame and a motor. It is connected with the motor drive and can rotate with the axis of the cable as the central axis. There is at least one fiber optic disk unit on the capstan body, and a copper wire disk unit is arranged on both sides of each fiber optic disk unit. The three-eye cable mold with the same number of disk units, the three-eye cable mold has a through hole that can pass through the cable, the three-eye cable mold is fixed relative to the frame, and one optical fiber and two copper wires pass through the three-eye cable respectively. The three eyelets of the wire mold.

Fix the optical fiber wrapping device in series between the two wrapping heads of the wrapping machine. When the cable passes through the pay-off, it first enters the first wrapping head for wrapping, and then enters the fiber wrapping device. While the cable advances, the fiber wrapping device The capstan body rotates, the optical fiber reel unit and the two supporting copper wire reel units release the wires respectively, and the optical fiber and the copper wires on both sides are wound on the surface of the cable along with the cable. The shifting method enables the optical fiber to overcome the twisting during the winding process first. Two copper wires protect the optical fiber from both sides of the optical fiber to reduce the probability of optical fiber damage and prevent two adjacent turns of optical fiber from interfering with each other. After the optical fiber wrapping is completed, the cable enters the second wrapping head, and the second layer of wrapping is carried out, so that all the wrapped optical fibers can be covered.

Further, the optical fiber reel unit includes a twist-back pay-off frame and an optical fiber pay-off reel wound with optical fibers. The fiber pay-off reel is connected to the capstan body through the twist-back pay-off frame. The possibility of fiber twisting.

Further, the axial direction of the optical fiber pay-off reel is set horizontally, and the axial direction is perpendicular to the direction of cable movement. After the optical fiber pay-off reel is placed in this direction, the optical fiber is released from the optical fiber pay-off reel and directly enters the three-eye wire passing mold , reducing the number of fiber twists.

Further, the optical fiber reel unit also includes a tension optical fiber brake mechanism that can adjust the tension required to trigger the brake, adjust the resistance when the optical fiber is released according to needs, and stop the optical fiber from being released in a timely manner.

Further, the copper wire reel unit includes a steering guide wheel and a copper wire pay-off reel wound with copper wire, the axial direction of the copper wire reel is parallel to the central axis of the capstan body, and the copper wire reel passes through the rotating shaft and the capstan The body is rotated and connected. After the copper wire pay-off reel is placed in this direction, the efficiency of copper wire release is improved, and the copper wire is transferred to the three-eye wire passing die through the steering guide wheel.

Further, the copper wire reel unit also includes a tension copper wire brake mechanism, which increases the resistance when the copper wire is released, keeps the copper wire smooth, and stops the copper wire from being released in a timely manner.

Further, the motor is a variable frequency motor. Synchronize the rotation of the capstan body with the wrapping machine to ensure that the optical fiber is wound evenly.

After adopting the technical scheme, the utility model has the following advantages:

Through the rotation of the winch, the optical fiber can be quickly wound on the surface of the cable. Each optical fiber uses a copper wire on each side as protection to reduce the chance of optical fiber damage.

In this structure, the optical fiber is released using a fiber pay-off rack with back twist. The advantage of this pay-off rack is to ensure that the untwisted optical fiber will not be twisted. In order to ensure that each optical fiber will not In case of medium damage, there is a copper wire on both sides of each fiber as protection.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the front view of a kind of embodiment of the utility model;

Fig. 2 is a side view of the embodiment of Fig. 1 .

Detailed ways

Shown in accompanying drawing 1-2 is a kind of embodiment of the present utility model.

The optical fiber 17 wrapping device includes a frame 8 and a motor 4, and the motor 4 is a variable frequency motor 4. Synchronize the rotation of the capstan body 11 with the wrapping machine to ensure that the optical fiber 17 is evenly wound. The frame 8 is provided with a capstan body 11, a pulley mechanism 7 and a mold cover 9 that can pass through the cable 6. The capstan body 11 passes through the pulley mechanism. 7 is connected to the motor 4 and can rotate with the axis of the cable 6 as the central axis. The winch body 11 is provided with two fiber optic disk units 2, and each fiber optic disk unit 2 is provided with a copper wire disk unit 1 and an optical fiber 17 on both sides. The wrapping device is also provided with the same three-eye wire-passing mold 16 (not shown in one figure) with the same number as the optical fiber reel unit 2. The three-eye wire-passing mold 16 is provided with a through hole that can pass through the cable 6, and the three-eye wire-passing mold 16 is provided with a through hole that can pass through the cable 6. Die 16 is fixed relative to frame 8, and an optical fiber 17 and two copper wires 13 pass through three eyelets of three wire dies 16 respectively. The optical fiber reel unit 2 includes a twist-back type pay-off frame 14 and an optical fiber pay-off reel 15 wound with an optical fiber 17. The possibility of twisting the optical fiber 17 can be further prevented; the copper wire reel unit 1 includes a steering guide wheel 10 and a copper wire pay-off reel 12 wound with copper wire 13, and the axial direction of the copper wire pay-off reel 12 is parallel to the center of the capstan body 11 axis, the copper wire pay-off reel 12 is rotationally connected with the capstan body 11 through the rotating shaft. After the copper wire pay-off reel 12 is placed in this direction, the efficiency of copper wire 13 release is improved, and the copper wire 13 is turned to the three-eye wire passing through the steering guide wheel 10. Die 16; the axial direction of the optical fiber pay-off reel 15 is set horizontally, and the axial direction is perpendicular to the direction in which the cable 6 moves. After the optical fiber pay-off reel 15 is placed in this direction, the optical fiber 17 will directly enter the third eye Through the line mode 16, the number of twists of the optical fiber 17 is reduced. The optical fiber disc unit 2 also includes a tension optical fiber brake mechanism 3 that can adjust the tension required to trigger the brake, adjust the resistance when the optical fiber 17 is released according to needs, and stop the optical fiber 17 in a timely state. The copper wire disc unit 1 also includes a tension copper wire brake. Mechanism 5 increases the resistance when the copper wire 13 is released, keeps the copper wire 13 smooth, and stops the copper wire 13 from being released in a timely manner.

Fix the optical fiber 17 wrapping device in series between the two wrapping heads of the wrapping machine. When the cable 6 passes through the pay-off, it first enters the first wrapping head for wrapping, and then enters the optical fiber 17 wrapping device. While the cable 6 advances, the optical fiber 17 The capstan body 11 of the wrapping device rotates, the optical fiber reel unit 2 and the supporting two copper wire reel units 1 release the wires respectively, the optical fiber 17 and the copper wires 13 on both sides are wound on the surface of the cable 6 as the cable 6 advances, because the capstan body 11 is rotating, that is to say, a method of shifting the center of gravity is adopted, so that the optical fiber 17 can preferentially overcome the twisting produced in the winding process, and the two copper wires 13 protect the optical fiber 17 from both sides of the optical fiber 17, which can reduce the damage to the optical fiber 17. loss probability, while preventing two adjacent turns of optical fiber 17 from interfering with each other. After the optical fiber 17 is wrapped, the cable 6 enters the second wrapping head, and the second layer of tape is carried out, so that the optical fiber 17 that has been wrapped thereon can be completely covered.

In addition to the above-mentioned preferred embodiment, the utility model also has other implementation modes, those skilled in the art can make various changes and deformations according to the utility model, as long as they do not depart from the spirit of the utility model, all should belong to the appended rights of the utility model The scope defined by the requirement.

Claims (7)

1. The optical fiber wrapping device is characterized in that: it comprises a frame (8) and a motor (4), and the frame is provided with a capstan body, a pulley mechanism (7) and a mold cover (9) that can pass through the cable (6). ), the winch body (11) is connected to the motor drive through a pulley mechanism and can rotate with the axis of the cable as the central axis. The copper wire reel unit (1), the optical fiber wrapping device is also provided with the same number of three-eye wire passing molds (16) as the optical fiber reel unit, the three-eye wire passing molds are provided with through holes that can pass through the cables, and the three-eye wire passing molds The mold is fixed relative to the frame, and one optical fiber and two copper wires respectively pass through the three wire eyes of the three-eye wire mold. 2. The optical fiber wrapping device according to claim 1, characterized in that: the optical fiber reel unit comprises a back-twist pay-off frame (14) and an optical fiber pay-off reel (15) that is wound with an optical fiber (17), the optical fiber The pay-off reel is connected with the winch body through the twist-back pay-off frame. 3. The optical fiber wrapping device according to claim 2, characterized in that: the axial direction of the optical fiber pay-off reel is arranged horizontally, and the axial direction is perpendicular to the moving direction of the cable. 4. The optical fiber wrapping device according to claim 2, characterized in that: the optical fiber reel unit further includes a tension optical fiber brake mechanism (3) that can adjust the tension required to trigger the brake. 5. The optical fiber wrapping device according to any one of claims 1-4, characterized in that: the copper wire reel unit comprises a steering guide wheel (10) and a copper wire pay-off reel ( 12), the axial direction of the copper wire pay-off reel is parallel to the central axis of the winch body, and the copper wire pay-off reel is rotationally connected with the winch body through a rotating shaft. 6. The optical fiber wrapping device according to claim 5, characterized in that: the copper wire reel unit further comprises a tension copper wire braking mechanism (5). 7. The optical fiber wrapping device according to any one of claims 1-4, wherein the motor is a variable frequency motor.