Factors that often cause frequent wire breakage during the production of wire drawing machines

Wire drawing machines are widely used mechanical equipment in industrial applications, widely used in industries such as mechanical manufacturing, hardware processing, petrochemical, plastic, bamboo and wood products, wires and cables, etc. The principle of a wire drawing machine is that the raw wire is formed into a product through a fixed speed wheel group and a wire drawing mold, and is transported to the take-up wheel through a fixed speed wheel at a certain speed through a wire guide wheel. The wire drawing machine requires a certain tension between the constant speed wheel and the take-up wheel to complete the wire drawing process. The fixed speed wheel set is driven by the main motor, and the rotational speed depends on the product specifications, and the linear speed is also constant. The linear speed of the take-up reel increases as the diameter of the take-up reel increases. For a certain tension, that is, to adhere to the common linear speed of wire feeding and wire collection, it is necessary to continuously reduce the speed of the wire collection wheel, and the wire collection speed of the wire collection wheel is constant. The principle of wire drawing machines can be divided into metal wire drawing machines, plastic wire drawing machines, and bamboo and wood wire drawing machines according to their purposes. The metal wire drawing machine belongs to the pre processing equipment for the production of standard parts and other metal products. The intention is to transport the wire or bar produced by the steel manufacturer to the production enterprise of standard parts and other metal products through the drawing process of the wire drawing machine, so that the diameter, roundness, internal metallographic structure, surface finish, and straightness of the wire or bar meet the raw material processing requirements for the production of standard parts and other metal products.

The frequent occurrence of wire breakage during wire drawing production is mainly caused by the following factors:

1. During uninterrupted production, the sizing area of the drawing die may become larger due to normal wear and tear.

2. Due to the unstable annealing current during production, the current suddenly increases, causing the single wire to be pulled apart or blown by sudden strong currents during the annealing process.

3. Due to quality issues with various rod materials. During the production process, the rod material exhibits quality defects irregularly, which causes the single wire to be pulled apart by various unpredictable tensions during drawing deformation. This situation is less common when the rod material is good. Solution: Select different mold matching schemes based on different rod materials and constantly explore them during production. For example, when producing copper rods produced by the up drawing method, 8 drawing dies are required to draw 2.53mm single wires, while when producing single wires with the same outer diameter, if rolling rods are used, an additional bridge die should be added during mold matching according to the requirements; Before production, it is necessary to conduct sufficient self inspection on the copper rod to be produced, promptly identify the quality defects of the copper rod, and find corresponding countermeasures based on different conditions, or reduce the wire drawing speed, or eliminate any defects in this section.

During the production of wire drawing machine, constantly observe whether the annealing current of wire drawing is normal, especially when it is just started, pay special attention to the change of annealing current, adjust the size of annealing current according to the change of line speed, so that the annealing current slowly increases with the increase of line speed, and the equipment operates normally. I believe that as long as we focus on controlling the above points in actual production, the quality and output power of copper wire drawing products will be improved to varying degrees, in order to provide strong production guarantee for the next process better and faster.