Processing Method and Processing Device for a Load-Bearing Layer of a Communication Cable with Uniform Stress

Abstract

The present invention relates to the technical field of communication cables, and discloses a processing method for a load-bearing layer of a communication cable with uniform force. It includes the following steps: S1: Installation of nylon wires on a stranding machine; S2: Installation of copper wires on a stranding machine; S3: After debugging the tightness of each copper wire passing through the limit disc to the drawing and stranding value, start the traction machine and the stranding machine in sequence for processing. The beneficial effects of the present invention are: In order to prevent the change of the microstructure of the metal conductor during the winding or unwinding of the communication cable, which may cause changes in the electrical characteristics of the communication suspension cable, a nylon wire is provided in the middle of the conductor layer. Its main function is to reduce the friction force of the conductor layer and the change of the internal structure of the conductor layer when the conductor layer and the nylon wire have relative displacement during the winding process of the communication cable. Thus, the conductor layer can maintain the stability of its electrical characteristics during multiple winding processes. The additional function is to increase the tensile resistance of the communication cable during winding and unwinding.

Description

Technical Field

[0001] The present invention relates to the technical field of communication cables, in particular to a processing method and a processing device for a load-bearing layer of a communication cable with uniform force Background Art

[0002] A sonar equipped on an anti-submarine helicopter or some surface ships, which uses a suspended cable to vertically lower a sonar probe into the water to detect targets. It is used for detecting and positioning underwater targets such as submarines and mines. It can also be used for underwater acoustic communication. When detecting a target, the array is far from the carrier, reducing the self-noise interference of the carrier; the probe does not move, without hydrodynamic noise interference, which is beneficial to increasing the operating range. It consists of a probe, an electronic cabinet, a suspended cable winch device, etc. It mainly operates in an active mode and also has passive direction finding. When an anti-submarine helicopter uses a suspended sonar for detection, it hovers low over the detection point and lowers the sonar probe into the water to a certain depth for active detection or passive monitoring.

[0003] Different from the suspended cable of a building, the continuous retraction and extension of this communication cable is a dynamic change. At present, the cable is prone to changes in the microstructure of the metal conductor (copper wire) during the suspension process, resulting in changes in the electrical characteristics of the communication suspended cable. It is difficult to ensure the reliability of data after multiple suspensions. Summary of the Invention

[0004] The purpose of the present invention is to provide a processing method and a processing device for a load-bearing layer of a communication cable with uniform force to overcome the shortcomings of the prior art.

[0005] The purpose of the present invention is achieved through the following technical solutions: A processing method for a load-bearing layer of a communication cable with uniform force, including the following steps:

[0006] S1: First, install a nylon thread reel on a pay-off machine, then pull the nylon thread out of the reel and pass it through the central holes of the limit disks on a stranding machine and the central hole of a bunching die in sequence, and then wind it on a traction machine;

[0007] S2: Install multiple copper wire reels on the line reels of the stranding machine, pull each copper wire out of its corresponding reel, pass it through the corresponding limit holes on the edges of the limit disks on the stranding machine, and finally cover all the copper wires passing through the limit disks on the nylon thread and pass them through the bunching die, and wind them on the traction machine;

[0008] S3: After adjusting the tightness of each copper wire passing through the limit disk to the stranding value, start the traction machine and the stranding machine in sequence for processing.

[0009] Preferably, the specification of the nylon thread is 6 square, and the specification of the copper wire is 2.5 square.

[0010] Preferably, the traction force of the traction machine is 300 Kg / Nm.

[0011] Preferably, the stranding machine is a 12-disk stranding body.

[0012] A processing device for a bearing layer of a communication cable with uniform stress, comprising the stranding machine described in the processing method for the bearing layer of a communication cable with uniform stress. A tension detection unit is provided on the limit disk of the stranding machine. The tension detection unit includes a controller, a sensor, and a roller group. The controller is close to the center of the limit disk. The number of the roller group is equal to the number of limit holes on the limit disk. The roller group is arranged in one-to-one correspondence with the limit holes. The roller group is composed of two guide rollers and an adjusting roller. The adjusting roller is located between the two guide rollers. The copper wire passing through the limit hole sequentially bypasses the first guide roller, the adjusting roller, and the second guide roller. The sensor is used to detect the offset of the adjusting roller. The signal output end of the sensor is connected to the signal input end of the controller through a wire.

[0013] Preferably, a speed regulating component for braking the wire reel shaft is provided on the stranding machine. The speed regulating component includes a pair of support plates, an adjusting screw, an adjusting nut, a spring, and a flexible wear-resistant sheet. The support plates are fixedly arranged on the stranding cage of the stranding machine. Through holes are provided on the support plates. The adjusting screw passes through the through holes and is connected to the end of the flexible wear-resistant sheet. The adjusting nut is screwed on the screw. The spring is sleeved on the screw, and both ends respectively abut against the support plate and the adjusting nut. The flexible wear-resistant sheet is surrounded on the wire reel shaft by the spring.

[0014] Preferably, an elastic buckle is further provided on the limit disk. The elastic buckle is in a wave shape. The elastic buckle is detachably installed on the limit disk. The wire connecting the controller and the sensor is clamped into the elastic buckle.

[0015] Preferably, a through hole is provided at one end of the elastic buckle. A bolt is arranged in the through hole. The bolt is screwed into the limit disk, and the head of the bolt is stuck on the elastic buckle.

[0016] Preferably, the processing device further includes a limit disk and a wire combining die which are located behind the stranding machine and are distributed in sequence.

[0017] Preferably, a plurality of spiral protrusions are arranged on the inner wall of the wire combining die in a spiral distribution. The height of the spiral protrusions is less than the diameter of the copper wire, and adjacent two spiral protrusions form a copper wire guiding spiral through groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] In order to prevent the communication cable during winding and unwinding or during the process of winding onto the shaft from causing changes in the microstructure of the metal conductor (copper wire), which may lead to changes in the electrical characteristics of the communication suspension cable, a nylon filament is provided in the middle of the conductor layer, that is, the nylon filament is located at the axial center position of the cable core. Its main function is to reduce the friction force of the conductor layer and minimize the changes in the internal structure of the conductor layer when there is relative displacement between the conductor layer and the nylon filament during the winding process of the communication cable for winding and unwinding. Thus, the conductor layer can maintain stable electrical characteristics during multiple winding processes. An additional function is to increase the tensile resistance of the communication cable for winding and unwinding. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the processing device;

[0021] Figure 2 It is a schematic installation structure diagram of the speed regulation component;

[0022] Figure 3 It is a schematic installation structure diagram of the roller group;

[0023] Figure 4 It is for Figure 3 the partial enlarged schematic diagram at position A in

[0024] Figure 5 It is a schematic diagram of the partial structure of the wire combining die.

[0025] In the figure, 1 - stranding machine, 2 - limiting disc, 3 - wire combining die, 4 - tractor, 5 - controller, 6 - sensor, 7 - guiding roller, 8 - adjusting roller, 9 - support plate, 10 - adjusting screw, 11 - adjusting nut, 12 - spring, 13 - flexible wear-resistant sheet, 14 - elastic buckle, 15 - bolt, 16 - nylon filament. Detailed Embodiments

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0028] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0029] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Embodiment 1

[0033] As Figure 1 shown, a processing method for a load-bearing layer of a communication cable with uniform stress includes the following steps:

[0034] S1: First, install the nylon wire 16 wire reel on the pay-off machine, then pull out the nylon wire 16 from the wire reel and pass it through the central holes of the limit disc 2 and the combining die 3 on the stranding machine 1 in sequence, and then wind it on the traction machine 4. The traction force of the traction machine is 300 Kg / Nm. The specification of the nylon wire is 6 square, the specification of the copper wire is 2.5 square, and the stranding machine is a 12-disk stranding body;

[0035] S2: Install multiple copper wire reels on the wire reels of the stranding machine 1, pull out each copper wire from its corresponding wire reel, pass it through the corresponding limit holes on the edge of the limit disc 2 on the stranding machine 1, and finally wrap all the copper wires passing through the limit disc 2 on the nylon wire 16, pass through the combining die 3, and wind it on the traction machine 4;

[0036] S3: After debugging the tightness of each copper wire passing through the limit disc 2 to the drawing value, start the tractor 4 and the bunching machine 1 in sequence for processing.

[0037] The load-bearing layer of the communication cable, i.e., the cable core, is obtained through the above processing method, preventing the change of the microstructure of the metal conductor (copper wire) during the winding or unwinding of the communication cable or during the winding onto the shaft, which may cause changes in the electrical characteristics of the communication suspension cable. A nylon wire 16 is arranged in the middle of the conductor layer, that is, the nylon wire 16 is located at the axial center position of the cable core. Its main function is to reduce the friction of the conductor layer and the change of the internal structure of the conductor layer when there is relative displacement between the conductor layer and the nylon wire 16 during the winding process of the communication cable, so as to keep the electrical characteristics of the conductor layer stable during multiple winding processes. An additional function is to increase the tensile resistance of the communication cable during winding and unwinding.

[0038] Embodiment 2

[0039] As Figure 1-3 shown, the processing device for the uniformly stressed load-bearing layer of the communication cable includes the bunching machine 1 in the processing method of the uniformly stressed load-bearing layer of the communication cable. A tension detection unit is arranged on the limit disc 2 of the bunching machine 1. The tension detection unit includes a controller 5, a sensor 6 and a roller group. The controller 5 is close to the center of the limit disc 2. The number of the roller group is equal to the number of the limit holes on the limit disc 2. The roller group is arranged in one-to-one correspondence with the limit holes. The roller group is composed of two guide rollers 7 and an adjusting roller 8. The adjusting roller 8 is located between the two guide rollers 7. The copper wire passing through the limit hole bypasses the first guide roller 7, the adjusting roller 8 and the second guide roller 7 in sequence. The sensor 6 is used to detect the offset of the adjusting roller 8. The signal output end of the sensor 6 is connected to the signal input end of the controller 5 through an electric wire. Through the tension detection unit, the tension of each copper wire wound on the nylon wire 16 is balanced, avoiding being too loose or too tight, which may affect the function of the nylon wire 16 in reducing friction and reducing the change of the cable core structure during the winding and unwinding of the cable.

[0040] In this embodiment, as Figure 1 and 2 shown, a speed regulation component for braking the wire reel shaft is arranged on the bunching machine 1. The speed regulation component includes a pair of support plates 9, an adjusting screw 10, an adjusting nut 11, a spring 12 and a flexible wear-resistant sheet 13. The support plates 9 are fixedly arranged on the cage of the bunching machine 1. Through holes are opened on the support plates 9. The adjusting screw 10 passes through the through holes and is connected to the end of the flexible wear-resistant sheet 13. The adjusting nut 11 is screwed on the screw. The spring 12 is sleeved on the screw and abuts against the support plate 9 and the adjusting nut 11 at both ends respectively. Through the spring 12, the flexible wear-resistant sheet 13 is made to surround the wire reel shaft. When the tension of the copper wire wound on the nylon wire 16 is not within the designed value, the tightening force of the flexible wear-resistant sheet 13 on the shaft is adjusted by turning the adjusting nut 11, so as to ensure the production quality of the load-bearing layer.

[0041] In this embodiment, as Figure 3 and 4 shown, an elastic buckle 14 is further provided on the limit disc 2. A through hole is provided at one end of the elastic buckle 14, and a bolt 15 is arranged in the through hole. The bolt 15 is screwed into the limit disc 2, and the head of the bolt 15 is stuck on the elastic buckle 14. The elastic buckle 14 is wavy. The elastic buckle 14 is detachably installed on the limit disc 2. The wire connecting the controller 5 and the sensor 6 is clamped into the elastic buckle 14 to separate adjacent wires to avoid winding and knotting. When the wavy buckle is in use, lift the free end of the buckle and clamp the wire in, which is fast and convenient to install.

[0042] Embodiment Three

[0043] As Figure 5 shown, based on Embodiment One and Embodiment Two, this embodiment further provides the following solution. A number of spiral protrusions distributed in a spiral shape are provided on the inner wall of the wire merging die 3. The height of the spiral protrusions is less than the diameter of the copper wire, and adjacent two spiral protrusions form a copper wire guiding spiral through groove 30. Blind holes 31 are respectively provided at both ends of each copper wire guiding spiral through groove, and a ball screw 32 is respectively arranged in each blind hole 31. The steel ball part of the ball screw 32 protrudes from the bottom of the copper wire guiding spiral through groove to form an elastic abutment against the copper wire, so that the copper wire has better tension during the traction process. And due to the tension when the ball screw 32 is pulled by the copper wire, at this time, the steel ball of the ball screw 32 displaces towards the bottom side of the blind hole 31, and the elastic tension of the copper wire is realized without damaging the surface of the copper wire.

[0044] At the same time, an inner limiting ring 34 is arranged along the axial direction of the wire merging die 3 at the center of the wire merging die 3. A number of inner spiral through grooves 33 corresponding to the copper wire guiding spiral through grooves one by one and enclosing to form a complete wire passing channel are provided on the outer wall of the inner limiting ring 34. The ball screw 32 makes the copper wire be pulled along the inner spiral through groove. An annular ring 35 is provided on the wire inlet side of the wire merging die 3. A number of wire inlet through holes 36 communicating with the wire passing channel one by one are provided on the annular ring 35. A ball bushing 37 is provided at the wire inlet end of each wire inlet through hole 36. The ball bushing 37 prevents the copper wire from being cut and damaged by the edge of the wire inlet end of the wire inlet through hole 36.

[0045] An arc chamfer is provided at the wire inlet end of the ball bushing 37.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Processing method for the load-bearing layer of a communication cable with uniform stress, Characterized in that, It includes the following steps: S1: First, install the nylon wire reel on the pay-off machine, then pull the nylon wire out of the reel and pass it through the central holes of the limit disks (2) on the stranding machine (1) and the central hole of the bunching die (3) in sequence, and then wind it on the traction machine (4); S2: Install multiple copper wire reels on the wire reels of the stranding machine (1), pull each copper wire out of its corresponding reel, pass it through the corresponding limit holes on the edge of the limit disk (2) on the stranding machine (1), and finally wrap all the copper wires passing through the limit disk (2) around the nylon wire and pass through the bunching die (3), and wind it on the traction machine (4); On the inner wall of the bunching die (3), there are several spiral protrusions (30) distributed in a spiral shape. The protrusion height of the spiral protrusions (30) is less than the diameter of the copper wire, and adjacent two spiral protrusions (30) form a copper wire guiding spiral through groove; S3: After adjusting the tightness of each copper wire passing through the limit disk (2) to the drawing and stranding value, start the traction machine (4) and the stranding machine (1) in sequence for processing.

2. The processing method for the load-bearing layer of a communication cable with uniform stress according to claim 1, Characterized in that: The specification of the nylon wire is 6 square, and the specification of the copper wire is 2.5 square.

3. The processing method for the load-bearing layer of a communication cable with uniform stress according to claim 1, Characterized in that: The traction force of the traction machine is 300 Kg / Nm.

4. The processing method for the load-bearing layer of a communication cable with uniform stress according to claim 1, Characterized in that: The stranding machine is a 12-disk stranding body.

5. Processing device for the load-bearing layer of a communication cable with uniform stress, including the stranding machine (1) used in the processing method for the load-bearing layer of a communication cable with uniform stress according to claim 1, Characterized in that: A tension detection unit is arranged on the limit disk of the stranding machine (1). The tension detection unit includes a controller (5), a sensor (6) and a roller group. The controller (5) is close to the center of the limit disk. The number of the roller group is equal to the number of limit holes on the limit disk. The roller group is arranged in one-to-one correspondence with the limit holes. The roller group is composed of two guiding rollers (7) and an adjusting roller (8). The adjusting roller (8) is located between the two guiding rollers (7). The copper wire passing through the limit hole sequentially bypasses the first guiding roller (7), the adjusting roller (8) and the second guiding roller (7). The sensor (6) is used to detect the offset of the adjusting roller (8). The signal output end of the sensor (6) is connected to the signal input end of the controller (5) through an electric wire; The processing device further includes a limit disk (2) and a bunching die (3) which are arranged in sequence behind the stranding machine (1). On the inner wall of the bunching die (3), there are several spiral protrusions (30) distributed in a spiral shape. The protrusion height of the spiral protrusions (30) is less than the diameter of the copper wire, and adjacent two spiral protrusions (30) form a copper wire guiding spiral through groove.

6. The processing device for the load-bearing layer of a communication cable with uniform stress according to claim 5, Characterized in that: A speed regulation component for braking the wire reel rotating shaft is provided on the stranding machine (1). The speed regulation component includes a pair of support plates (9), an adjusting screw (10), an adjusting nut (11), a spring (12), and a flexible wear-resistant sheet (13). The support plates (9) are fixedly arranged on the cage of the stranding machine (1). Through holes are formed in the support plates (9). The adjusting screw (10) passes through the through holes and is connected to the end of the flexible wear-resistant sheet (13). The adjusting nut (11) is screwed on the screw (10). The spring (12) is sleeved on the screw (10), and both ends thereof respectively abut against the support plate (9) and the adjusting nut (11). The flexible wear-resistant sheet (13) is made to surround the wire reel rotating shaft by the spring (12).

7. The processing device for the load-bearing layer of the communication cable with uniform stress according to claim 5, characterized in that: An elastic buckle (14) is further provided on the limit disc. The elastic buckle (14) is in a wavy shape. The elastic buckle (14) is detachably installed on the limit disc, and the wire connecting the controller (5) and the sensor (6) is clamped into the elastic buckle (14).

8. The processing device for the load-bearing layer of the communication cable with uniform stress according to claim 7, characterized in that: A through hole is formed at one end of the elastic buckle (14). A bolt (15) is arranged in the through hole. The bolt (15) is screwed into the limit disc, and the head of the bolt (15) is stuck on the elastic buckle (14).

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