t is designed for the continuous reduction of the diameter of high, medium, and low carbon steel wire, as well as welding wire and stainless steel wire.
Principle of Operation
The straight-type machine is distinct because of its linear arrangement and precision control:
Preparation (Descaling/Coating): The incoming wire rod is first cleaned (descaled, often chemically or mechanically with a rust remover/shot-blasting unit) and coated with a lubricant (like lime, zinc phosphate, or a non-reactive lube).
Drawing: The wire is pulled through the first drawing die, which reduces its cross-section. The resulting thinner wire is then wrapped around a capstan (drawing drum or block).
Straight Line Path: Unlike older pulley or accumulation machines, the wire path between the capstans is nearly straight (hence the name). After the capstan, the wire feeds directly into the next die and then the next capstan, repeating the reduction process multiple times in a continuous line.
Speed Synchronization (PID Control): As the wire diameter decreases at each stage, its length increases, meaning the line speed required for the subsequent capstan must be proportionally faster. This is the most crucial part of the straight-line machine:
Each capstan is driven by an independent AC/DC motor with a Variable Frequency Drive (VFD).
A dancer arm or displacement sensor is placed between the capstans/dies. This sensor detects the tension and position of the wire loop.
A PLC (Programmable Logic Controller) uses a PID (Proportional-Integral-Derivative) algorithm to continuously adjust the speed of the motor for the next block, ensuring the tension is constant and there is no accumulation (slack) or excessive tension (breakage)
Advantage and features
| Feature | Advantage in Production |
| Straight Path | Eliminates Wire Twisting & Bending: This results in a much better, smoother, and more uniform surface quality on the finished wire and reduces the chance of wire breakage. |
| Individual Motor Control | Non-Slip Drawing: Each drawing block's speed is perfectly synchronized, meaning there is no slip between the wire and the capstan. This significantly reduces wear on the capstan (often coated with long-life tungsten carbide). |
| High Drawing Speed | High Output: The simplified, efficient path and precision control allow for extremely high drawing speeds, often up to $20 \text{ m/sec}$ or more, boosting production capacity. |
| Efficient Cooling | High Quality & Durability: Capstans typically use a narrow-slit or spiral water cooling system, and the die boxes often have direct water cooling. This quickly dissipates the heat generated by drawing friction, prolonging die life and preserving the wire's mechanical properties. |
| Advanced Automation | Easy Operation: Equipped with PLC, touch screen, and inverter control for functions like fixed-length deceleration, automatic stop on wire breakage, and easy adjustment of drawing parameters. |
specification
|
Model |
LZ9/900 |
LZ9/800 |
LZ9/700 |
LZ10/560 |
LZ10/400 |
|
Drum dia. |
900mm |
800mm |
700mm |
560mm |
400mm |
|
Drawing times |
9 |
9 |
9 |
10 |
10 |
|
Max inlet dia. |
14.0-8.0mm |
10.0-8.0mm |
8.0-6.5mm |
6.5-5.5mm |
2.8-2.0mm |
|
Max outlet dia. |
5.0-3.0mm |
5.0-3.0mm |
3.0-2.5mm |
2.0-1.8mm |
1.0-0.8mm |
|
Drawing speed |
300m/min |
360m/min |
480m/min |
720m/min |
840m/min |
|
Inlet wire T.S. |
<1300Mpa |
<1300Mpa |
<1300Mpa |
<1300Mpa |
<1300Mpa |
|
Total compressibility |
87.24-85.94% |
84.00-85.94% |
85.94-85.21% |
90.53-89.29% |
87.24-84.00% |
|
Average compressibility |
20.45-19.58% |
18.42-19.58% |
19.58-19.13% |
21.00-20.02% |
18.61-16.74% |
|
Motor power |
110-90kw |
90-55kw |
75-55kw |
45-22kw |
15-7.5kw |
Quality assurance
We strictly follow international quality standards in the production process of the wire drawing machine. All components are carefully selected and inspected to ensure their quality and reliability. The machine has passed strict quality - control tests before leaving the factory, including performance tests, durability tests, and safety tests. We also provide a certain - period of after - sales service and warranty to ensure that customers can use the machine with confidence. If there are any problems during the use of the machine, our professional technical team will provide timely support and solutions.
In conclusion, our wire drawing machine is a high - quality, high - efficiency, and cost - effective equipment choice for wire - processing enterprises. We are committed to providing the best products and services to help our customers achieve greater success in their business.
Please contact us info@aiemachine.com +8617762388331 , if any inquiry or question.
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