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Method for producing layer-stranded cables in two steps and device therefor

A production method and technology of the production layer, applied in the direction of fiber mechanical structure, etc., can solve the problems of troublesome storage, high purchase cost of plates, scattered production lines, etc., achieve high utilization rate, reduce purchase and management costs, and save energy.

Inactive Publication Date: 2010-04-21
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing technology has the following main defects: 1. The production line is scattered, and the space cannot be used reasonably; 2. The pipes produced by the second coating need to be wound on the coils, and can be twisted into cables after multiple coils are completed; not only Occupies a large number of trays and space; and storage is more troublesome; and the purchase cost of the tray is also high; 3. The filling rope process and the stranding process also need to occupy the tray, so there is the same occupation of the tray as the secondary covering The characteristics of large quantity, large space occupation, and high cost of plate procurement and management

Method used

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  • Method for producing layer-stranded cables in two steps and device therefor
  • Method for producing layer-stranded cables in two steps and device therefor
  • Method for producing layer-stranded cables in two steps and device therefor

Examples

Experimental program
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Effect test

Embodiment 1

[0020] See figure 1 with figure 2 , the method for two-step method production layer stranded optical cable, it comprises the following steps: A, coloring operation; Cable process; B4, extrusion molding process; it is characterized in that: the loose tube produced by the same machine in the secondary coating process of step B1 is five, and the loose tube directly enters the B2 stranding step in the production process and No coiling; in the stranding process of the step B2, the five loose tubes produced in the secondary coating process of the step B1 are twisted around the central reinforcement to form a cable core, and the produced cable core directly enters the B4 extrusion process without coiling; the speed of each sub-step in the first cabling of step B is synchronous.

[0021] Of course, in the above-mentioned two-step method for producing layer-stranded optical cables, the number of loose tubes produced by the same machine in the second coating process of step B1 should...

Embodiment 2

[0024] See image 3 with Figure 4 , the method for two-step method production layer stranded optical cable, it comprises the following steps: A, coloring operation; Cable process; B3, filling rope process; B4, extrusion process; it is characterized in that: the same machine produces three loose tubes in the secondary coating process of step B1, and the loose tubes directly enter B2 during the production process No coiling in the stranding step; two filler ropes produced by the same machine in the step B3 filling rope process, and the filling ropes directly enter the B2 stranding step during the production process without coiling; the steps In the stranding process of B2, the loose tube produced in the secondary coating process of step B1 and the filling rope produced in the filling rope process of B3 are twisted around the central reinforcement to form a cable core, and the produced core is directly entered into B4 for extrusion Coiling is not performed in the process; the ...

Embodiment 3

[0031] See Figure 5 , a kind of device that is used to implement the two-step production method of layer stranded optical cable described in example 1, is characterized in that it mainly comprises: at least one coloring unit 1, a secondary coating unit 21, a twisting unit 22, a The extrusion unit 24; the secondary coating unit can produce at least three loose tubes at the same time. The one secondary coating unit 21 , one twisting unit 22 , and one extruding unit 24 together constitute the cable-forming unit 2 .

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PUM

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Abstract

The invention discloses a method for producing layer-stranded cables in two steps, which relates to the technical field of cables. The method comprises the following steps of: A, coloration; and B, one-time cable forming, wherein the step B also comprises the following sub steps of: B1, secondary coating procedure; B2, stranding cable forming procedure; and B3, plastic extruding procedure. The method is characterized in that in the secondary coating procedure, at least three loose tubes are produced by the same machine, and the loose tubes are directly put into the stranding step without entwining in production; in the stranding cable forming procedure, a plurality of loose tubes produced in the secondary coating procedure are stranded around a center reinforcement to from a cable core, and the produced cable core is directly put into the plastic extruding procedure without entwining. All the sub steps in the step B have the synchronous speed. The invention also introduces a device for the method. The invention has the advantages of higher utility of production plant, greatly reduced cost of entwining tool purchase and management and energy saving.

Description

technical field [0001] The invention relates to the technical field of optical cables, in particular to a two-step method for producing layer-stranded optical cables and a device used in the method. Background technique [0002] In the prior art, the production method of the layer twisted optical cable generally needs to go through the following steps: A, optical fiber coloring; each raw material bare optical fiber is colored with one of the following different colors; such as blue, orange, green, brown, gray, White, red, black, yellow, purple, pink, turquoise; B, secondary coating; put multiple colored optical fibers above into the same plastic or metal tube, and fill the gaps of the tubes with water-blocking substances, such as Petroleum jelly; wind formed tube around pan. The material of the plastic pipe is usually polybutylene terephthalate (PBT) or modified polypropylene (PP); the material of the metal pipe is usually stainless steel. Of course, in order to identify, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
Inventor 沈群华
Owner STATE GRID CORP OF CHINA