SPUN YARN DRAWING APPARATUS

摘要

Power consumption of a preheating roller for heating yarns before drawn is reduced, and adherence of contaminants on the surface of the preheating roller is prevented. A spun yarn drawing apparatus 3 for drawing yarns spun out from a spinning apparatus includes preheating rollers 31 to 33 for heating the yarns before drawn, conditioning rollers 34 and 35 which are provided on the downstream in the yarn running direction of the preheating rollers 31 to 33 and are higher in temperature and rotation speed than the preheating rollers 31 to 33, the yarns being drawn between the conditioning rollers 34 and 35 and the preheating rollers 31 to 33, and a thermal insulation box 20 including an internal space S in which the preheating rollers 31 to 33 and the conditioning rollers 34 and 35 are housed. A heat conduction acceleration portion 51 which is higher in heat conductivity than a material of a thermal insulation box 20 is provided from a region in the vicinity of the conditioning rollers 34 and 35 to a region in the vicinity of the preheating rollers 31 to 33 on the inner surface of the thermal insulation box 20.