Yarn storage mechanism composite production line

The invention belongs to the field of a device for a composite material production line, and in particular relates to a yarn storage mechanism for the composite material production line. The yarn storage mechanism comprises a frame, wherein the frame is separated into a left frame and a right frame, wherein more than two yarn guide rollers are arranged in parallel on the top between the left and right frames; a moving mechanism capable of moving up and down is arranged between the left and right frames; at least one yarn storage roller is fixed on the moving mechanism through a connecting part, and is arranged in parallel to the yarn guide roller; and each yarn storage roller is arranged between two adjacent yarn guide rollers. The yarn storage mechanism has the advantages that: yarns canbe stored in the frame of the yarn storage mechanism, when more yarns are required quickly by a weaving machine, yarns can be quickly supplied in time, and are prevented from being fractured due to over tensile force, so that the working efficiency is improved.