摘要
This article introduces a design of an extrusion pipe head utilizing a turbine-traction biaxial orientation stretching device. As the requirements for the use of plastic pipes continue to rise, the application fields of plastic pipes are continuously expanding, and countries are imposing higher standards on the performance of plastic pipes. Especially during the online production of PVC-O pipes, the positioning of the orientation stretching device and precise heating control of the billet temperature are key technologies for the self-reinforcement of biaxially oriented pipes. This not only makes it possible to maintain a stable temperature during the orientation stretching process but also prevent uneven wall thickness and eccentricity of the pipes due to misalignment between the billet and the orientation stretching device during online production. Therefore, a design of an extrusion pipe head using a worm-wheel traction biaxial orientation stretching device has been developed. The results show that by pulling the orientation stretching device at different positions online, the billet can achieve smooth stretching and precise positioning under ideal heating conditions, ensuring the uniformity of the molded pipe after overall expansion and improving the burst resistance and toughness of the pipe.