Intelligent Tension Control with Magnetic Powder Controller & Real-Time Display
Product Introduction
Tension control is a critical process that directly impacts the strength and appearance uniformity of PP strapping. This production line features an intelligent magnetic powder tension controller with real-time display system, delivering precise and stable tension management for the core stretching process. The controller maintains constant tension within the 0.5-5N range, with actual tension values displayed in real-time on the gauge. This closed-loop control system effectively prevents product deviation, uneven thickness, or breakage during stretching due to tension fluctuations, ensuring final products achieve excellent mechanical properties and consistency.
Main Specifications
- Control Core: Magnetic powder tension controller (DC24V power supply)
- Control Range: Tension adjustable from 0.5 to 5N
- Monitoring Method: Real-time digital display on gauge
- Application Location: Primarily integrated into the Drawing Machine (stretching process)
- Advantages: Stable stretching process, uniform product strength and dimensions
Technical Parameters
| Item |
Parameter |
| Tension Controller Type |
Magnetic Powder Type |
| Control Power Supply |
DC24V |
| Tension Adjustment Range |
0.5 - 5 N |
| Display Method |
Real-time digital gauge display |
| Main Controlled Object |
Drawing rollers on Drawing Machine (Biaxial Stretching) |
| Control Objective |
Maintain constant tension during stretching |
Frequently Asked Questions
Q: How does the magnetic powder tension controller work? What makes it better than ordinary mechanical brakes?
A: The controller provides stepless, smooth, and precisely settable resistance torque (tension) by varying the excitation current to control the bonding force between magnetic particles. Compared to traditional mechanical friction brakes, it offers significant advantages: faster response, more precise control, stable tension without fluctuation, and no wear parts requiring maintenance, making it especially suitable for high-speed, precision stretching sensitive to tension.
Q: How is this tension value (0.5-5N) set? What should it be adjusted based on?
A: The tension setpoint is primarily determined by raw material characteristics (e.g., Melt Flow Index), the target thickness of the product, and the draw ratio. Generally, higher tension is required for producing thicker products or those needing a high draw ratio. The operator can set it directly via the knob on the controller panel and fine-tune it based on the real-time displayed tension value until a stable, ideal stretching state is achieved.
Q: What is the use of the real-time display? What if the displayed value deviates from the setpoint?
A: The real-time display provides process visibility and instant diagnostics. The operator can monitor the stability of the stretching process at any time. If the displayed value consistently deviates from the setpoint, it may indicate changes in raw material, mismatched haul-off speed, or abnormalities in mechanical components (e.g., bearings). This alerts the operator to intervene and inspect promptly, preventing batch quality issues and serving as a key tool for predictive maintenance.
