Double Chain Type Cold Drawing Machine

Drawing is a metalworking process used to reduce the diameter of a wire by pulling the wire through a single, or series of, drawing die(s). There are many applications for wire drawing, including electrical wiring, cables, tension-loaded structural components, springs, paper clips, spokes for wheels, and stringed musical instruments. Although similar in process, drawing is different from extrusion, because in drawing the wire is pulled, rather than pushed, through the die. Drawing is usually performed at room temperature, thus classified a cold working process, but it may be performed at elevated temperatures for large wires to reduce forces.Wires can also be drawn into different shapes, although this is much more difficult than diameter reductions.More recently drawing has been used with molten glass to produce high quality optical fibers. Following is the technical parameters of our 20T chain type cold drawing machine: Double chain cold drawing machine is used to the high precision drawing work of various kinds of material such like steel, iron, copper and aluminum, etc. Our Double chain cold drawing machine adopt new technology and crafts, compare to the old chain type drawing machines, it provides lower noise, better products surface, better straightness, more precision finished length and high utilization. 2. Composition The machine is composed of decoiler, automatic pointing machine, automatic feeding machine (maximum two at one time), drawing device, mechanical receiving material, conveying device, collection platform, hydraulic system and electric system, etc. (Remark: the automatic pointing machine and feeding machine is only used to round bars). 3. Main Technical Parameters 1). Drawing Power: 20T (200KN). 2). Original Material Tensile strength≤850N/mm2 Hardness≤HB320 3). Production Specification Round: diameter 10-30mm Odd shape: diameter 10-26mm Square: 10-25mm Length of Finished Production: 3-10m 4). Quality of Finished Production Precision of the size: ¢d h8 h9Surface tolerance: Ra≤1.6-3.2um 4. Capacity Of The Machine 1) Size Reduce Big Material≤7% Small Material≤17% 2) Drawing Speed 5-25m/min use DC motor. 55KW and computer control can achieve frequency control. Drawing Power is 20T. 3) The machine works stable and the clamp is fixed closely. The drawing die use wet lubricate, the lubricate oil recycle during the working time, and the impurity can be filtrated. 4) Installation total power: 65KW. 5. Technical Characters of This Drawing Machine 1) This line is reasonable designed: welded by steel and use horizontal type. It’s composed by drawing motor, drawing clutch, speed reducer, trolley back motor, trolley back clutch, brake, drawing machine, etc. The drawing motor transport the power to reducer via clutch to drive the trolley for drawing work, when the trolley arrives the set destination, the drawing clutch release, the brake cultch pull in the brake, after the trolley is stopped, the brake clutch release, the trolley back cultch pull in the brake to make the trolley back, when the trolley back to the drawing die, the trolley back clutch release and brake cultch pull in, when the trolley is stopped, the brake release and the brake pull in to draw, and this work recycle during the work. 2) The tracks use ball guide track, the position control precision is high, the speed is stable and without shake. 3) Whole Machine Control. Automatic control of the whole line, the control system use PLC and human-machine panel, easy to operate and maintain. Delivery Date: 90 days.