The line is consist of pay off, wire drawing machine, annealer (optional, according to customer), tension controller, take-up and electric control system.
4.1 Wire drawing machine
The drawing machine adopts powerful precision helical gear transmission, and the gear manufacturing is processed by fine grinding to ensure high meshing accuracy and low noise during operation.
Full immersion lubrication and cooling method, to make the wire and the drawing dies are completely immersed in the drawing fluid. After sufficient cooling and lubrication, not only the excellent wire surface can be obtained, but also the service life of the drawing dies and the drawing tower wheel can be prolonged.
Both the drawing tower wheel and the fixed speed wheel are treated by spraying tungsten carbide.
The gear box setted with high speed and low speed, it is better to choose the high speed when produce smaller wire size (0.40mm～1.0mm), it is better to choose the low speed when produce bigger wire size (more than 1.0mm) Different speed can be choosed according to different wire sizes, to ensure high quality wire and higher production efficiency.
The gear box adopts pig iron castings, strong oil cooling and lubrication, and the cooling and lubrication system is provided with under pressure protection to ensure the safe use and high-speed performance of the gear box. The whole machine is designed with ergonomic principles, the structure is reasonable and reliable, and the operation is convenient.
The equipment is optional according to customer, the principle is contact short-circuit annealing with DC annealing power, which is suitable for annealing softening production after copper wire drawing. The annealing machine consists of a conductive system, an oxidation protection system, a cooling system, a drying system, and an electrical system. The oxidation protection method adopts steam protection; the cooling and lubrication adopt the drawing fluid with a concentration of 0.5% to 1%. Generally, cooling is provided by setting a pool or an external heat exchanger; the drying system uses compressed air and dies to dry. It can ensure that the appearance of the annealed copper wire is bright and free of oxidation, and can also meet the performance requirements of the elongation and resistivity of the annealed copper wire.
The take-up adopts 630 high-speed take-up machine, which is suitable for the take-up of high-speed drawing machine. According to customer requirements, single or double reels can be selected, suitable for 630 type reel or 500 type reel. Bobbin clamping, lifting and brake are all pneumatic method. Emergency stop on control panel, safety protection switch on the protection cover, braking system etc can be connected to the emergency stop system of its supporting equipment, the clamping thimble is provided with a safety protection stop bolt to ensure the safety of the production process. Traverse device adopt servo motor control the direction, traverse speed is adjusted by servo controller, the ranking is adjusted by servo motor, users can adjust it according to the width of the take-up reel.