INVT TM700 PLC and DA200A Servo Solution for Roller Coater Applications

Driven by the vigorous development of downstream industries such as electronics and packaging, roller coaters are also experiencing a period of rapid growth. Technologically, they are moving towards intelligence and environmental friendliness, with the localization process continuously accelerating. However, dependence on imported high-end technology, high R&D investment, and long payback periods still, to some extent, constrain the industry's independent production capabilities. Facing the market's urgent demand for high-quality and high-efficiency equipment, roller coater companies are undergoing dual tests of technological innovation and cost control.

 Process Introduction

As a critical piece of equipment in industries such as electronics and packaging, the roller coater's process includes multiple stages like substrate feeding, coating, coating thickness control, drying treatment, and rewinding. Precise control at each stage is key to ensuring uniform coating and producing high-quality finished products. However, in practical applications, issues such as coating uniformity, operational stability, accuracy of tension control, drying effectiveness, and neatness of finished product rewinding remain pain points urgently needing resolution in the industry.

Coating Uniformity and Consistency
Requires uniform coating thickness during the coating process, free from defects.

Stable and Efficient Operation
The equipment needs to run stably over long periods to improve production efficiency.

Precise Tension Control
During unwinding and rewinding, tension control must be precise to avoid substrate stretching or wrinkling.

Good Drying Effectiveness
Ensures rapid and uniform drying of the coating, improving product quality.

Neat Finished Product Rewinding
Maintains neatness during the rewinding process, facilitating subsequent processing.

INVT TM700 Control Solution

Addressing customer pain points and needs, INVT has launched a roller coater solution based on the TM752 PLC + DA200A servo system. This solution offers significant advantages compared to the customer's original system:

• Precise Speed Control: The combination of TM752PLC and DA200A servo provides more precise speed control and smaller fluctuations than the original system, meeting the stringent requirements for speed control in roller coaters.

• High Efficiency and Energy Saving: The system solution is highly efficient and energy-saving, with a smaller size and more prominent performance, reducing customer operating costs.

• Simplified Wiring: Uses network cables to replace the original various analog cables, simplifying the wiring process and enhancing system stability.

• Retention of Process Logic: The customer's main process logic can be retained in the original PLC, which communicates to control the INVT PLC, thereby controlling the servos, reducing the customer's learning curve.

Customer Benefits

1. Coating Quality
   Precise speed control ensures uniform and consistent coating thickness, free from defects, improving product quality.

2. Operating Costs
   The highly efficient and energy-saving system reduces energy consumption, simplifies maintenance procedures, and lowers maintenance difficulty and operating costs.

3. Production Efficiency
   Stable operation and precise tension control keep the substrate flat during unwinding and rewinding, improving the production efficiency of the roller coater.

4. Rapid Response
   INVT provides fast and efficient technical support, ensuring timely resolution of customer issues.

The successful application of INVT's solution in roller coaters not only solves the customer's pain points in the coating process but also brings significant economic benefits and production efficiency improvements to the customer. In the future, INVT will continue to commit to technological innovation and product upgrades, providing customers with higher quality and more efficient automation solutions to promote the intelligent development of the printing and packaging industry.