Coating device for reducing bubbles of optical fiber coating

The utility model belongs to the technical field of optical fiber paint coating, and particularly relates to a coating device for reducing optical fiber paint bubbles, which comprises a main tank, a filter box is mounted on the right side surface of the main tank, optical fiber paint is doubly filtered through a filter plate a and a filter plate b in the filter box, and a stepping motor drives a contraction frame and a scraper to move rightwards. A spring pushes a scraper to move downwards along with the inclination angle of a filter plate a or a filter plate b, the scraper cleans optical fiber coating impurities on the upper surfaces of the filter plate a and the filter plate b, the optical fiber coating impurities enter a waste collecting box through a feeding port and enter a waste collecting tank through the waste collecting box, and the filtered optical fiber coating at the bottom of a filter box enters the bottom of a main tank through a liquid outlet pipe. The problem that bubbles are generated by the