During the production process of round wire drawing machines, impurities such as carbides, metal particles, and unmelted raw materials often contaminate the plastic melt. If not filtered promptly, these impurities can clog die holes, causing wire breakage, uneven thickness, and even equipment malfunctions. The mesh belt screen changer employs a moving mesh belt to intercept impurities in the melt, enabling continuous filtration. This makes it an indispensable auxiliary device for round wire draw