Optical fiber wire drawing annealing heat preservation device

The utility model relates to an in the clean optical fiber wire drawing annealing heat preservation device that just can improve optic fibre production efficiency and quality, including outer body and interior body, interior body setting is internal at the outer tube, and outer body around there being the wire of generating heat, is provided with the heat preservation including the outer body upper portion and outer body lower part that can open and shut on the lateral surface of interior body on the medial surface of outer body, be provided with the insulating layer on the medial surface of heat preservation, and the junction that lies in outer body upper portion and outer body lower part of outer body is provided with the refractory seals strip. Compare with current annealing heat preservation device, the utility model discloses an optical fiber wire drawing annealing heat preservation device not only can play annealing heat preservation effect, guarantees optical fiber stress release, body outside more can