Automatic temperature control method and device for optical fiber coating

Abstract

The invention relates to an automatic temperature control method and device for an optical fiber coating. The automatic temperature control device comprises an optical fiber coating device provided with a heating chamber, wherein the heating chamber of the optical fiber coating device is communicated with a circular heater through a circulating pipeline; liquid heat-conducting media are filled in the heating chamber, the circulating pipeline and the circular heater; and the circular heater is used for heating coating in the optical fiber coating device by circularly heating the liquid heat-conducting media. The automatic control method is characterized in that the automatic control method comprises the following steps of: arranging a processing control unit; controlling the heating process of the circular heater by acquiring a wire drawing speed sensing signal and a liquid heat-conducting medium temperature sensing signal and comparing the wire drawing speed sensing signal and the liquid heat-conducting medium temperature sensing signal with a preset parameter value through the processing control unit, thus realizing the automatic control and adjusting process of the temperature of the coating in the optical fiber coating device. According to the automatic temperature control method and device disclosed by the invention, the temperature of the coating can be automatically changed along with the wire drawing speed in the wire drawing process of optical fibers, and favorable matching between the temperature (viscosity) of the coating and the wire drawing speed is achieved, so that the quality of a coating layer on the surface of the optical fiber is ensured and the finished product rate of optical fiber processing is increased.

Description

technical field [0001] The invention relates to an automatic control method and device for optical fiber coating temperature in the optical fiber coating process, belonging to the technical field of optical fiber processing. Background technique [0002] In the fiber drawing process, in order to protect the surface of the glass fiber, it is necessary to coat the surface of the fiber with multiple layers of coating (coating). Optical fiber coating is completed by coating optical fiber coating, which is usually made of polymer resin compound material, which is liquid at room temperature. The viscosity of paint changes with temperature. In order to obtain better coating quality on the optical fiber surface, a good match between coating viscosity, coating temperature and drawing speed is required during the drawing process. [0003] During the drawing process, as the drawing speed increases, the surface temperature of the optical fiber becomes higher and higher. In order to m...

AI Technical Summary

Problems solved by technology

In this case, it is more and more difficult to meet the requirements of high-speed wire drawing for coating coating by using the traditional fixed temperature heating method, and it is difficult to guarantee the coating quality of optical fibers

In the process of high-speed wire drawing, problems such as paint spillage and coating layer defects are becoming more and more serious, and have become serious obstacles that limit the further improvement of wire drawing speed

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