METHOD AND DEVICE FOR AUTOMATICALLY CONTROLLING TEMPERATURE OF OPTICAL FIBER COATINGS IN WIREDRAWING PROCESS

摘要

A method and a device for automatically controlling the temperature of optical fiber coatings in a wiredrawing process. The device comprises an optical fiber coating device (4), wherein a coating cavity of the optical fiber coating device (4) is communicated with a charging bucket by a charging pipeline. The device is characterized in that the charging pipeline is externally provided with a controllable heater (6) which is used for heating the coatings in the charging pipeline, the charging pipeline is also provided with a processing control unit which is used for comparing an acquired wiredrawing speed sensing signal and charging pipeline temperature sensing signal with a preset parameter numerical value, so as to control the heating process of the controllable heater (6), so that the automatic controlling and adjusting process of the temperate of the coatings in the optical fiber coating device (4) can be realized. According to the device and the method, the temperature of the coatings in an optical fiber wiredrawing process can be automatically changed along with the wiredrawing speed, so that the temperature or the viscosity of the coatings can be well matched with the wiredrawing speed, and therefore, the quality of a coating layer on the surface of the optical fiber can be guaranteed, and the machining yield of the optical fiber can be improved.