Automatic yarn binding device for large-core-number OPGW (Optical Fiber Composite Overhead Ground Wire)

Abstract

The utility model discloses an automatic yarn binding device for a large core number OPGW, which comprises a rack, a central shaft, a motor, a yarn binding guide arm, an ion wind inlet, an ion wind outlet pipe and a yarn binding sleeve mechanism, the central shaft is rotatably arranged on the rack, a first inner hole is formed in the central shaft, the central shaft is driven by the motor, the yarn binding guide arm is fixed at the other end of the central shaft, and the ion wind outlet pipe is fixed at the other end of the central shaft. The ion air inlet is formed in the center shaft and communicated with the first inner hole, the ion air outlet pipe is fixed to the yarn binding and guiding arm, a second inner hole is formed in the ion air outlet pipe, and the second inner hole is communicated with the first inner hole. The static electricity of the optical fiber is removed by introducing ionic wind into the central shaft, the problem that the large-core-number optical fiber is adsorbed and deposited due to the static electricity is effectively avoided, meanwhile, through the design of the yarn guide arm and the ionic wind outlet pipe, the ionic wind can also remove the static electricity of yarn binding yarn, and the problem that the yarn is substituted into the secondary static electricity is avoided.

Description

Technical Field

[0001] The utility model relates to a yarn tying device, in particular to an automatic yarn tying device for large-core-count OPGW, belonging to the technical field of optical cable production. Background Technique

[0002] For large-core-count OPGW, instead of using the method of making loops, a yarn tying machine is used to bundle and distinguish the optical fibers in the stainless steel tube optical unit, which can avoid the problem of increased optical fiber attenuation caused by making loops. Although the current yarn tying machine can perform bundling, it is found in actual use that the tied yarn has no tension, resulting in easy accumulation of optical fibers during the pay-off of large-core-count color wires. At the same time, due to the large number of optical fiber cores, the optical fiber racks are arranged closely in a small space, and the optical fibers are prone to generate static electricity and adsorb together, and the optical fibers are prone to breakage when first put on the machine. The existing optical fiber yarn tying machines only have improvements in the aspect of active pay-off. However, when the yarn tying device performs pay-off, due to the large number of optical fiber cores, reaching more than 144 cores, but the space is cramped, it is easy to cause accumulation of optical fibers during pay-off. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an automatic yarn tying device for large-core-count OPGW to solve the problem of optical fiber accumulation in large-core-count optical cables.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is:

[0005] An automatic yarn tying device for large-core-count OPGW includes a frame, a central shaft, a motor, a yarn tying guide arm, an ion wind inlet, an ion wind outlet duct, and a yarn tying sleeve mechanism. The central shaft is rotatably arranged on the frame and has a first inner hole axially provided. One end of the central shaft is connected to the motor and driven by the motor. The yarn tying guide arm is fixed to the other end of the central shaft. The ion wind inlet is arranged on the central shaft and communicates with the first inner hole. The ion wind outlet duct is fixed to the yarn tying guide arm and has a second inner hole axially provided inside. The second inner hole communicates with the first inner hole.

[0006] Further, the yarn tying guide arm is arranged radially along the central shaft. One end of the yarn tying guide arm is fixed outside the other end of the central shaft, and several yarn tying guide arms are equally spaced along the circumferential direction of the central shaft.

[0007] Further, the ion wind outlet duct is arranged perpendicular to the yarn tying guide arm and fixed to the other end of the yarn tying guide arm. A wind guiding duct is arranged inside the yarn tying guide arm. One end of the wind guiding duct communicates with the first inner hole, and the other end communicates with the second inner hole. Several ion wind outlet holes are opened on the side of the ion wind outlet duct facing the central shaft.

[0008] Further, the ion wind outlet holes are trumpet-shaped holes with gradually increasing diameters.

[0009] Further, a yarn threading hole for the tying yarn to pass through is formed in the tying yarn guiding arm.

[0010] Further, the ion wind air inlet is sleeved outside the central shaft and fixedly connected to the outside of the central shaft. An ion wind air inlet interface is arranged on the ion wind air inlet. The ion wind air inlet interface is connected to an external ion wind source through an external hose. A plurality of ion wind inlet holes are formed in the central shaft corresponding to the position of the ion wind air inlet. The ion wind inlet holes communicate the inner cavity of the ion wind air inlet with the first inner hole, and the plurality of ion wind inlet holes are equidistantly distributed along the circumferential direction of the central shaft.

[0011] Further, the motor is fixed on the frame. A first belt pulley is arranged on the output shaft of the motor. A second belt pulley is fixed at one end of the central shaft. The belt is arranged on the first belt pulley and the second belt pulley.

[0012] Further, the tying yarn sleeve mechanism includes a tying yarn shaft, a limiting plate, a locking nut and a tying yarn sleeve. The tying yarn shaft is sleeved outside the central shaft and one end of the tying yarn shaft is fixed on the frame. The limiting plate is fixed at one end of the tying yarn shaft. External threads are arranged at the other end of the tying yarn shaft. The tying yarn sleeve is sleeved outside the tying yarn shaft. The locking nut is sleeved at the other end of the tying yarn shaft and is threadedly connected to the tying yarn shaft.

[0013] Compared with the prior art, the present utility model has the following advantages and effects: The present utility model provides an automatic tying device for large-core-count OPGW. By introducing ion wind into the central shaft to remove the static electricity of the optical fiber, the problem of static electricity adsorption and accumulation of large-core-count optical fibers is effectively avoided. At the same time, through the design of the yarn guiding arm and the ion wind outlet pipe, the ion wind can also remove the static electricity of the tying yarn, avoiding the problem of secondary static electricity brought in by the yarn. The tying yarn of the present utility model is actively payed off by driving the tying yarn guiding arm with a motor, which can effectively control the tension of the tying yarn, avoid the accumulation of large-core-count optical fibers, and at the same time can control the tying pitch by adjusting the rotation speed of the yarn guiding arm. Description of the Drawings

[0014] Figure 1 is a schematic diagram of an automatic tying device for large-core-count OPGW of the present utility model.

[0015] Figure 2 is a cross-sectional view of an automatic tying device for large-core-count OPGW of the present utility model. Detailed Embodiment

[0016] In order to elaborate in detail on the technical solutions adopted by the present utility model to achieve the predetermined technical objectives, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only partial embodiments of the present utility model, rather than all embodiments. Moreover, without creative labor, the technical means or technical features in the embodiments of the present utility model can be replaced. The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0017] As Figure 1 and Figure 2 shown, an automatic yarn tying device for large-core-count OPGW of the present utility model includes a frame 1, a central shaft 2, a motor 3, a yarn tying and guiding arm 4, an ion wind inlet 5, an ion wind outlet pipe 6, and a yarn tying sleeve mechanism. The central shaft 2 is rotatably arranged on the frame 1 and has a first inner hole 7 axially arranged. One end of the central shaft 2 is connected to the motor 3 and is driven by the motor 3. The yarn tying and guiding arm 4 is fixed to the other end of the central shaft 2. The ion wind inlet 5 is arranged on the central shaft 2 and communicates with the first inner hole 7. The ion wind outlet pipe 6 is fixed to the yarn tying and guiding arm 4 and has a second inner hole 8 axially arranged inside. The second inner hole 8 communicates with the first inner hole 7.

[0018] The yarn tying and guiding arm 4 is arranged radially along the central shaft 2. One end of the yarn tying and guiding arm 4 is fixed outside the other end of the central shaft 2. A plurality of yarn tying and guiding arms 4 are evenly distributed at equal intervals along the circumferential direction of the central shaft 2. In this embodiment, there are two yarn tying and guiding arms 4, symmetrically distributed on both sides of the end of the other end of the central shaft 2.

[0019] The ion wind outlet pipe 6 is arranged perpendicular to the yarn tying and guiding arm 4 and is fixed to the other end of the yarn tying and guiding arm 4. A wind guiding pipe 9 is arranged inside the yarn tying and guiding arm 4. One end of the wind guiding pipe 9 communicates with the first inner hole 7, and the other end of the wind guiding pipe 9 communicates with the second inner hole 8. A plurality of ion wind outlet holes 10 are opened on the side of the ion wind outlet pipe 6 facing the central shaft 2. The ion wind in the first inner hole 7 in the central shaft 2 is guided to the second inner hole 8 of the ion wind outlet pipe 6 through the wind guiding pipe 9, and then sprayed onto the tying yarn along the ion wind outlet holes 10 to remove the static electricity on the yarn.

[0020] The ion wind outlet holes 10 are trumpet-shaped holes with gradually increasing diameters. Through the design of the trumpet-shaped hole structure, the wind speed of the ion wind can be reduced, avoiding affecting the tension of the tying yarn, and at the same time increasing the spraying range of the ion wind.

[0021] A yarn passing hole 11 for the tying yarn to pass through is opened on the yarn tying and guiding arm 4. The tying yarn on the yarn tying sleeve mechanism passes through the yarn passing hole 11 on the yarn tying and guiding arm 4 and then winds around the outside of the optical fiber bundle.

[0022] The ion wind inlet 5 is sleeved outside the central shaft 2 and fixedly connected to the outside of the central shaft 2. One side of the ion wind inlet 5 is hermetically connected to the outside of the central shaft 2, and the other side of the ion wind inlet 5 is hermetically connected to the meter to form a sealed inner cavity. An ion wind inlet interface 12 is provided on the ion wind inlet 5. The ion wind inlet interface 12 is connected to an external ion wind source through an external hose. The central shaft 2 is provided with a plurality of ion wind inlet holes 13 corresponding to the position of the ion wind inlet 5. The ion wind inlet holes 13 communicate the inner cavity of the ion wind inlet 5 with the first inner hole 7. The plurality of ion wind inlet holes 13 are equidistantly distributed along the circumferential direction of the central shaft 2. The ion wind provided by the ion wind source enters the inner cavity of the ion wind inlet 5 along the external hose from the ion wind inlet interface 12, and then enters the first inner hole 7 inside the central shaft 2 along the ion wind inlet holes 13, and the static electricity of the optical fiber in the first inner hole 7 is removed by the ion wind to avoid the accumulation of the optical fiber bundle.

[0023] The motor 3 is fixed on the frame 1. A first pulley 14 is provided on the output shaft of the motor 3. A second pulley 15 is fixed at one end of the central shaft 2. A belt 16 is provided on the first pulley 14 and the second pulley 15. The motor 3 drives the first pulley 14 to rotate. The first pulley 14 synchronously drives the second pulley 15 to rotate through the belt 16. The second pulley 15 drives the central shaft 2 to rotate, so as to drive the yarn tying and guiding arm 4 to rotate to complete active yarn tying.

[0024] The yarn tying sleeve mechanism includes a yarn tying shaft 17, a limiting plate 18, a locking nut 19 and a yarn tying sleeve 20. The yarn tying shaft 17 is sleeved outside the central shaft 2 and one end of the yarn tying shaft 17 is fixed on the frame 1. The limiting plate 18 is fixed at one end of the yarn tying shaft 17. The other end of the yarn tying shaft 17 is provided with an external thread. The yarn tying sleeve 20 is sleeved outside the yarn tying shaft 17. The locking nut 19 is sleeved at the other end of the yarn tying shaft 17 and is threadedly connected to the yarn tying shaft 17.

[0025] The utility model provides an automatic yarn tying device for large-core OPGW. By introducing ion wind into the central shaft to remove the static electricity of the optical fiber, the problem of static electricity adsorption and accumulation of large-core optical fibers is effectively avoided. At the same time, through the design of the yarn guiding arm and the ion wind outlet pipe, the ion wind can also remove the static electricity of the yarn tying yarn, avoiding the problem of secondary static electricity brought in by the yarn; the yarn tying yarn of the utility model is actively payed off by driving the yarn tying and guiding arm by the motor, which can effectively control the tension of the yarn tying yarn, avoid the accumulation of large-core optical fibers, and at the same time can control the yarn tying pitch by adjusting the rotation speed of the yarn guiding arm.

[0026] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to form equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present utility model. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent replacement, and improvement made to the above embodiments within the spirit and principle of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automatic yarn binding device for large core number OPGW, characterized by: It includes a frame, a central axis, a motor, a yarn binding guide arm, an ion wind inlet, an ion wind outlet pipe, and a yarn binding sleeve mechanism. The central axis is rotatably arranged on the frame and is provided with a first inner hole arranged along the axial direction. One end of the central axis is connected to the motor and driven by the motor. The yarn binding guide arm is fixed at the other end of the central axis. The ion wind inlet is arranged on the central axis and is connected with the first inner hole. The ion wind outlet pipe is fixed on the yarn binding guide arm and is provided with a second inner hole arranged along the axial direction. The second inner hole is connected with the first inner hole.

2. The automatic yarn binding device for large core number OPGW according to claim 1, characterized in that: The yarn-binding guide arm is arranged along the radial direction of the central axis, one end of the yarn-binding guide arm is fixed on the outer side of the other end of the central axis, and a plurality of yarn-binding guide arms are distributed at equal intervals along the circumference of the central axis.

3. The automatic yarn binding device for large core number OPGW according to claim 2, characterized in that: The ion wind outlet pipe is arranged perpendicular to the yarn binding guide arm and fixed at the other end of the yarn binding guide arm. An air guide duct is arranged in the yarn binding guide arm. One end of the air guide duct is connected to the first inner hole, and the other end of the air guide duct is connected to the second inner hole. A plurality of ion wind outlet holes are opened on the side of the ion wind outlet pipe facing the central axis.

4. The automatic yarn binding device for large core number OPGW according to claim 3, characterized in that: The ion wind outlet hole is a trumpet hole with a gradually increasing diameter.

5. The automatic yarn binding device for large core number OPGW according to claim 3, characterized in that: The yarn-binding yarn guide arm is provided with a yarn-threading hole for the yarn-binding yarn to pass through.

6. The automatic yarn binding device for large core number OPGW according to claim 1, characterized in that: The ion wind inlet is sleeved on the outside of the central axis and fixedly connected to the outside of the central axis. An ion wind inlet interface is provided on the ion wind inlet, and the ion wind inlet interface is connected to the external ion wind source through an external hose. A plurality of ion wind inlet holes are opened at the position of the central axis corresponding to the ion wind inlet, and the ion wind inlet holes connect the inner cavity of the ion wind inlet and the first inner hole. The plurality of ion wind inlet holes are evenly spaced along the circumference of the central axis.

7. The automatic yarn binding device for large core number OPGW according to claim 1, characterized in that: The motor is fixed on the frame, a first pulley is arranged on the output shaft of the motor, a second pulley is fixed on one end of the central shaft, and belts are arranged on the first pulley and the second pulley.

8. The automatic yarn binding device for large core number OPGW according to claim 1, characterized in that: The yarn binding sleeve mechanism includes a yarn binding shaft, a limit plate, a locking nut and a yarn binding sleeve. The yarn binding shaft is sleeved on the outside of the central shaft and one end of the yarn binding shaft is fixed to the frame. The limit plate is fixed to one end of the yarn binding shaft, and the other end of the yarn binding shaft is provided with an external thread. The yarn binding sleeve is sleeved on the outside of the yarn binding shaft, and the locking nut is sleeved on the other end of the yarn binding shaft and is threadedly connected to the yarn binding shaft.

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