Wire Drawing Machine

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[Wire Drawing Machine]

The wire drawing machine is a special equipment used for metal wire processing. It continuously draws metal materials (such as copper, aluminum, steel, etc.) through the wire drawing die to reduce its diameter, extend its length, improve its surface quality, and finally form the wire of the required specifications. The wire must be lubricated when entering the wire drawing die. The wire drawing die has a special cooling system to prevent the die and wire from deforming due to high temperature. The power is provided by the wire take-up machine. The core feature of the wire drawing machine is to achieve efficient production through multiple continuous processing. It is widely used in the fields of wires and cables, hardware products, and automotive parts.

The wire drawing machine body is welded with steel plate and section steel. The tower wheel shaft transmission adopts double chain transmission. The tower wheel surface adopts special treatment to improve the surface hardness and roughness. The die base adopts inlaid design to ensure the center distance of drawing and reduce the probability of wire breaking. The upper part of the drawing box is equipped with hinged start-up closed protection box cover to prevent the coolant from splashing out.

According to the number of wire drawing dies, it can be divided into single-die wire drawing machine and multi-die wire drawing machine. The following is a detailed description of each:

1.Single-die Wire Drawing Machine

Single-die wire drawing machines are mainly used to process thicker metal materials (such as copper, aluminum, steel, etc.) into thinner wires through the drawing process.

“Single-die” means that the machine is equipped with only one wire drawing die (single die position), and can only draw one metal wire at a time.

1. Structure

-Pay-off rack-: for storing raw materials (coils or thick wires).

– Drawing die: a high-hardness die (such as diamond, carbide) used to control the final diameter and surface finish of the wire.

– Drawing power system: a motor drives a roller or chain to provide drawing force.

– Take-up device: to wind the processed wire into a coil.

– Lubrication and cooling system: to reduce friction and heat during the drawing process and extend the life of the die.

2. Process

1. Paying off: The raw material is drawn out from the pay-off rack and pre-treated (such as pickling and phosphating) to remove the surface oxide layer.

2. Drawing: The wire passes through the lubricant and enters the drawing die, where the diameter becomes smaller under strong stretching.

3. Rewinding: The processed wire is wound by the take-up reel to complete a single drawing process.

4. Multi-pass processing (if thinner wire is required): The die needs to be replaced multiple times and drawn step by step.

3.Feature

– Simple structure: easy to operate and maintain, suitable for small and medium-sized enterprises.

– High flexibility: the mold can be quickly replaced to meet the needs of different specifications.

– Low cost: compared with multi-eye wire drawing machines (multi-die positions), equipment investment and energy consumption are lower.

2.Multi-die Wire Drawing Machine

Multi-die Wire Drawing Machine continuously draws metal materials (such as copper, aluminum, steel, etc.) through multiple drawing dies, gradually reducing the wire diameter and improving the surface quality. Its core feature is to achieve efficient production through multiple continuous processing.

1.Principle

1.1 Drawing process

– The metal wire is drawn through multiple sets of dies (“eye dies”) in sequence, and the aperture of each die is gradually reduced, and the wire diameter gradually becomes thinner, and finally reaches the target size.

– During the drawing process, tension is applied, the material undergoes plastic deformation, the length increases, and the surface finish improves.

1.2. Multi-pass continuous processing

– Multiple passes of drawing can be completed in one threading, without frequent die changes, which significantly improves efficiency.

– Design the die arrangement according to the target wire diameter (e.g., 5-8 times are required to pull from Φ8mm to Φ2mm).

2.Structure

1. Pay-off system

– Pay-off rack: carries the raw wire coil and provides stable pay-off tension.

– Straightening device: pre-straightens the coiled wire to avoid bending that affects drawing.

2. Drawing system

– Die seat (tower pulley): installs the wire drawing die, made of carbide or diamond.

– Transmission device: the motor drives the drawing wheel group, and transmits power through gears or belts.

– Cooling and lubrication system: spray lubricant (emulsion or oil) to reduce die friction and temperature rise.

3. Take-up system

– Take-up reel: wind the drawn wire into a coil, and control the tension to avoid wire breakage or loose coiling.

– Wire arranger: ensure that the wire is evenly wound.

3. Process

1. Pay-off: The thick wire is drawn out from the pay-off reel and enters the first die through the guide wheel.

2. Step-by-step stretching:

– The wire passes through multiple dies in sequence, and the diameter of each die decreases and the length increases.

– After each stretching, the wire is pulled by the corresponding reel and the tension is accumulated.

3. Lubrication and cooling: Spray lubricant throughout the process and dissipate heat at the same time.

4. Rewinding: Finally, the thin wire is wound by the take-up reel to complete the processing.

4.Type of Multi-die Wire Drawing Machine

1. In-line multi-die wire drawing machine

– The dies are arranged in a straight line, with a simple structure, suitable for medium and low strength metals (such as copper and aluminum).

2. Inverted multi-die wire drawing machine

– The dies are arranged vertically, and the wire is taken up by gravity, which is suitable for high-strength materials (such as stainless steel wire).

– Advantages: Reduce wire torsion and better surface quality.

3. Pulley multi-die wire drawing machine

– The wire passes through multiple sets of pulleys to transmit tension, which is suitable for extremely fine wires (<0.1mm) or high-precision drawing.

5.Feature

1. Efficient production

– Multiple continuous drawing, speed can reach 10-30 m/s (depending on material and wire diameter).

– High degree of automation, support PLC control and online monitoring.

2. Precision control

– Mold tolerance can reach ±0.001mm, high wire diameter consistency.

– Surface roughness Ra≤0.2μm, meeting the needs of high-end wires (such as electronic wires).

3. Energy saving and consumption reduction

– Multi-die linkage design reduces intermediate annealing process (some materials require intermediate annealing).

– Lubrication circulation system reduces coolant consumption.

Difference between single-die wire drawing machine and multi-die wire drawing machine:

Single-die machine: simple structure, suitable for small batch and multi-specification orders, flexible mold change, low cost.

Multi-die machine: multiple dies are connected in series, multiple drawing passes are completed at one time, suitable for large-scale single specification production.

12-die Wire Drawing Machine

[12-die wire drawing machine]

The 12-die wire drawing machine is a special equipment for metal wire processing. It is mainly used to gradually stretch thick metal wires (such as copper, aluminum, steel, etc.) into thinner wires through multiple dies. The “12-die” in its name means that the machine is equipped with 12 wire drawing die holes, that is, 12 drawing processes. The following is a detailed description of its working principle:

1.Core Principle

1.Stretching forming

The metal wire passes through 12 gradually shrinking wire drawing dies (die holes) in turn. The aperture of each die is smaller than the previous one. The wire diameter is gradually reduced through mechanical tension and finally reaches the target size.

2.Power transmission

-The main motor drives the reducer, which drives the wire drawing reel to rotate through gears or belt transmission.

-Each reel corresponds to a die, and the tension control ensures that the wire is evenly stretched to avoid breakage.

3.Lubrication and cooling

-During the stretching process, the wire and die surface need to be continuously sprayed with lubricants (such as emulsions or grease) to reduce friction and heat.

– The cooling system prevents the mold and wire from deforming due to high temperature.

2.Structure

1.Wire release device

The reel for storing the original thick wire releases the wire smoothly through tension control.

2.Wire drawing die set

– 12 carbide or diamond dies (die holes), arranged in order from large to small according to the hole diameter.

– The compression rate (diameter reduction) of each die needs to be precisely designed, usually 10%-20%.

3.Drawing reel

– A power reel is configured behind each die to provide tensile force through rotation.

– The surface of the reel has grooves or coatings to prevent the wire from slipping.

4.Lubrication system

The circulation pump delivers lubricant to the contact surface between the die and the wire to reduce friction loss.

5.Wire take-up device

The stretched thin wire is rewound into a reel, and the take-up speed is synchronized with the drawing speed.

3.Process

1.Pay-off: The thick wire is drawn out from the pay-off reel and enters the first die through the guide wheel.

2.Step-by-step stretching:

– The wire passes through 12 dies in sequence, and the diameter of each die decreases and the length increases.

– After each stretching, the wire is pulled by the corresponding reel and accumulates tension.

3.Lubrication and cooling: Spray lubricant throughout the process and dissipate heat at the same time.

4.Winding: The final thin wire is wound by the take-up reel to complete the processing.

4.Technical Features

– Efficient production: 12 continuous stretching, one-time forming, suitable for large-scale fine wire manufacturing.

– Precision control: The mold aperture tolerance is small (±0.001mm) to ensure uniform wire diameter.

– Energy-saving design: Multi-stage transmission optimizes energy consumption, and some models are equipped with variable frequency speed regulation.

– Applicable materials: copper, aluminum, stainless steel, alloy and other metal wires.

5.Application Areas

– Wires and cables: wire drawing of copper and aluminum wires.

– Metal products: processing of steel wire ropes, spring wires, and welding wires.

– Precision industry: preparation of electronic component leads and ultra-fine metal wires.

Through multi-stage stretching and precision control, the 12-die wire drawing machine can efficiently and stably process coarse metal wires into high-precision fine wires, and is one of the core equipment in the metal wire manufacturing industry.

Machine Pictures

Wire Drawing Machine Details:

Wire Drawing Machine

Multi-die Wire Drawing Machine

Single-die Wire Drawing Machine

Single-die wire drawing machine

Parameter

Model CDO-WD1 CDO-WD8 CDO-WD12
Power source 3 phase 380V, 50/60Hz 3 phase 380V, 50/60Hz 3 phase 380V, 50/60Hz
Power 4kw 4kw 7.5kw
Application Au, Ag, Cu wire shrinkage Au, Ag, Cu wire shrinkage Au, Ag, Cu wire shrinkage
Dies capacity 1 pcs per time 8 pcs per time 12 pcs per time
Wire diameter range 2.2mm→0.2mm 2.2mm→0.2mm 2.2mm→0.2mm
Drawing speed 0-50 m/min 0-50 m/min 0-50 m/min
Dimension 650*550*1000MM 1300*740*1370mm 1300*740*1370mm
Weight 150kg 420kg 420kg
Cooling way Automatic liquid cooling Automatic liquid cooling Automatic liquid cooling

Feature

1: CDOCAST wire drawing machine has high efficiency. The wire wheel is precision manufactured with imported materials, and the wheel surface is carburized to improve wear resistance.

2:The motor is designed with stepless speed regulation and equipped with automatic reel change and rewinding machine.

3:The whole wire drawing machine is equipped with automatic cooling system, and will stop automatically after the work is finished.

Why CDOCAST Wire Drawing Machine

2 Years Warranty Time

2 Years Warranty Time

CDOCAST Provide 2 Warranty time , and during the warranty time we will be responsible for the all aftersales service & spare parts for free

Innovation

Innovation

CDOCAST Provide more value & turnkey Solution to Metal Melting & Casting According to Each Customer

 Quality Gurantee

Quality Gurantee

We owe it to each of our customers, CDOCAST adopt world famous brand components to improve our machine working performance.

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