What are the key functions of an inline folding and gluing unit in corrugated box production? | Keshenglong&Shinko Guide

What are the Key Functions of an Inline Folding and Gluing Unit in Corrugated Box Production?

In the corrugated box production process, the inline folding and gluing unit plays a critical role. It seamlessly integrates with preceding machinery such as die-cutters and flexo printers, performing efficient folding and gluing of corrugated board blanks. This ensures the creation of durable, ready-to-assemble box blanks with high speed and precision.

1. How Does the Inline Folding and Gluing Unit Improve Production Efficiency?

The inline folding and gluing unit drastically reduces manual labor by automating the folding of scored lines and applying precise amounts of adhesive. Modern units can operate at speeds exceeding 300 meters per minute, minimizing bottlenecks and ensuring continuous workflow. This automation improves throughput, reduces labor costs, and maintains consistent quality throughout production runs.

2. What Types of Adhesives Are Used in Inline Gluing Units?

Common adhesives used include hot melt and cold glue types. Hot melt adhesives, such as ethylene-vinyl acetate (EVA), are favored for their fast setting times and strong bonding on corrugated materials. Some advanced inline units integrate adhesive dosing systems calibrated by digital controls to ensure accuracy and minimal waste.

3. How Does the Unit Ensure Accurate Folding of Corrugated Boards?

Inline folding is typically guided by pre-scored crease lines created earlier in the production process. The folding unit uses precision-controlled folding plates or belts to fold the board along these creases without cracking or damaging the corrugated structure. Sensors and servo motors ensure synchronization with upstream processes for perfect alignment.

4. Can Inline Folding and Gluing Units Handle Different Box Styles?

Yes, versatile inline units can be adjusted or customized to accommodate various box types including regular slotted containers (RSC), full overlap boxes (FOL), and die-cut styles. Changeover kits and programmable settings allow quick reconfiguration, reducing downtime and increasing production flexibility.

5. What Maintenance Practices Are Essential for Optimal Unit Performance?

Regular cleaning of folding plates, glue nozzles, and conveyor components is essential to prevent adhesive buildup and mechanical jams. Periodic inspection of servo motors, sensors, and adhesive dispensing systems guarantees accuracy and reliability. Many manufacturers recommend daily checks and preventive maintenance schedules to ensure continuous high-quality output.

By understanding these core functions and considerations, flexo printers and corrugated box producers can maximize the value of their inline folding and gluing units, improving product quality and operational efficiency.