Abstract: Due to the limitation of the shelf-life, the curing agent content and the fluctuation of the resin content in the present wet-wound winding, we propose a winding resin automatic mixing and impregnating solution. The PLC controls the flow speed of the two peristaltic pumps to transport the resin and curing agent to the dynamic mixer to achieve an accurate ratio, the fiber output speed sampled by the encoder is input to the PLC to control the total amount of resin to ensure the resin content in tows, and a resin automatic mixing and impregnating system on line is built. The preliminary testing results demonstrate that the system can achieve online continuous automatic impregnation of resin with no applicable period limitation. The error between theoretical and experimental values of resin and curing agent at different winding speeds is within ±2%.

Key words: wet winding, resin automatic mixture and impregnation, continuous production