Project Background

Packaging machines are widely used in automated product packaging across industries such as food, pharmaceuticals, cosmetics, and daily chemical goods. These systems perform essential functions including filling, sealing, labeling, weighing, shrinking, and boxing—significantly improving production efficiency and packaging consistency.

Typical packaging equipment includes horizontal cartoning machines, vertical bagging machines, heat-shrink packaging systems, and automatic labeling units. Through flexible structural design and strong functional integration, modern packaging equipment reduces labor costs while ensuring that products remain in optimal condition during transport and storage.

Solution Overview

Main Controller: Siemens S7-1200 PLC
Applicable Process: Packaging Machine
I/O Configuration:
2RS-PN2 + 616DI + 816DO + 18AI
Annual Usage Volume: 20,000 units

Our solution utilizes the Siemens S7-1200 PLC combined with custom-developed IO modules to create a high-performance packaging equipment control system. The system supports multiple sensor types, including:

• Weight sensors

• Photoelectric sensors

• Position sensors

• Packaging status and sealing condition feedback

The PLC processes real-time data from these sensors to precisely regulate core components such as the filling mechanism, sealing unit, motion drive system, and labeling modules. By ensuring stable, accurate, and synchronized operations during the packaging cycle, the system achieves high-precision automation essential for modern packaging lines.

Project Description

This intelligent control system enables seamless data acquisition and automated decision-making. Based on sensor signals, the PLC accurately controls loading, sealing, labeling, and conveying tasks to maintain consistent packaging quality. The integrated automation reduces human error, improves production efficiency, and maintains consistent product appearance, sealing strength, and overall packaging integrity.

Through this smart control approach, the entire packaging process becomes more efficient, reliable, and suitable for high-volume production environments.

Application Advantages

High-Speed Response, Increased Production Efficiency

• Real-time monitoring improves packaging accuracy and consistency

• Automated control reduces labor costs and manual intervention

• Flexible architecture supports multiple packaging formats

• Reliable PLC processing ensures stable, long-term equipment performance

This solution helps manufacturers achieve fully automated, high-efficiency packaging operations—meeting the evolving demands of the modern packaging industry.