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Optical fiber production method with characteristic of optical fiber cable manufacturing quality benefiting

A technology of manufacturing quality and manufacturing method, applied in manufacturing tools, glass manufacturing equipment, glass production, etc., to achieve the effect of favorable manufacturing quality

Inactive Publication Date: 2015-09-30
成都亨通光通信有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned further optimization of the tube-rod drawing optical fiber process, it will undoubtedly further improve the quality of existing optical fiber products and improve the production efficiency of optical fiber products. The present invention provides an optical fiber manufacturing method that is beneficial to the quality of optical cable manufacturing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of optical fiber manufacturing method that is conducive to the manufacturing quality of optical fiber cable, comprises the following steps that carry out in sequence:

[0021] 1) Put the preform in the heating furnace to soften the preform;

[0022] 2) Under the traction force, the optical fiber is led out from the top of the preform to obtain a coiled optical fiber product. In step 2), the fiber diameter control process is also included, and the wire diameter control process is realized in the following way: during the movement of the optical fiber A caliper and a winch for providing traction for optical fiber extraction are arranged on the path, and a feedback circuit is also connected between the caliper and the stirring, and the above feedback circuit transmits the output value of the caliper to the control circuit of the winch drive device, The output speed of the optical fiber is controlled by the output value of the caliper. In step 2), the tension adjustm...

Embodiment 2

[0026] This embodiment is further limited on the basis of Example 1, as a specific coating solution, as a high-precision diameter measuring instrument, and the diameter measuring instrument is a laser diameter measuring instrument.

[0027] In order to reduce the temperature of the drawn optical fiber relatively quickly, which is beneficial to the processing efficiency of the process and the surface quality of the optical fiber, a forced optical fiber cooling process is also included between step 1) and step 2).

[0028] In order to avoid the impact of sudden cooling on the quality and performance of the optical fiber, the forced cooling process is carried out in multiple steps, that is, the cooling process is to sequentially set a plurality of cooling environments with gradually lower temperatures on the pulling and moving route of the optical fiber, so that the optical fiber passes through the above cooling processes in sequence. After the environment, it enters the coating p...

Embodiment 3

[0030] This embodiment is further defined on the basis of any one of the above embodiments, as a driving device with high rotational speed control precision, the winch driving device is a servo motor.

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Abstract

The present invention discloses an optical fiber production method with the characteristic of optical fiber cable manufacturing quality benefiting. The method sequentially comprises: 1) placing a preform into a heating furnace so as to soften the preform, and 2) under traction force, leading out the optical fiber from the top end of the preform to obtain the coiled optical fiber product, wherein the step 2) further comprises an optical fiber wire diameter control process and an optical fiber coiling tensioning force adjusting process, wherein the optical fiber wire diameter control process comprises that a diameter measuring instrument and a winch for providing optical fiber leading out traction force are arranged on the movement path of the optical fiber, a feedback circuit is connected between the diameter measuring instrument and the winch, and the feedback circuit transmits the output value of the diameter measuring instrument to the control circuit of a winch drive device, such that the leading out speed of the optical fiber is controlled through the output value of the diameter measuring instrument. With the method of the present invention, the dynamical adjusting on the optical fiber wire diameter during the optical fiber drawing process can be achieved, and the optical fiber cable manufacturing quality is easily achieved.

Description

technical field [0001] The invention relates to a method for making a communication cable, in particular to a method for making an optical fiber which is beneficial to the quality of the cable. Background technique [0002] Optical fiber, referred to as optical fiber, is a light transmission tool that transmits light on the principle of total reflection in fibers made of glass or plastic. The tiny fiber is encapsulated in a plastic sheath that allows it to be bent without breaking. Typically, a transmitting device at one end of the fiber uses a light-emitting diode or a laser to transmit light pulses into the fiber, and a receiving device at the other end of the fiber uses a photosensitive component to detect the pulses. Cables that contain optical fibers are called fiber optic cables. Because the transmission loss of light in optical fibers is much lower than that of electricity in wires, and because the main raw material is silicon, which has a huge reserve and is easy t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/025
CPCY02P40/57
Inventor 孙义兴王耀明许建国彭志勇刘东李涛
Owner 成都亨通光通信有限公司
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