P32 / Secondary Packaging and End of Line
Finished Product Conveying System
The finished product conveying system provides continuous, synchronized transfer of filled single bottles, grouped multipacks, and corrugated cartons across post-filling inspection, labeling, packaging, and palletizing stations. As containers transition from individual bottles to secondary packages
Scope of Application
The application scope encompasses PET single bottles, film-wrapped bundles, corrugated cartons, and other beverage finished packaging formats confirmed by specific dimensions and weight parameters.
Process Path
Process route — Finished Product Conveying System.
The process path sequences from filling machine discharge through post-filling processing, labeling and inspection, group packaging, package conveying, and finally to palletizer infeed.
System Design and Operating Logic
The conveying architecture handles three distinct container types with varying support requirements, speeds, allowable accumulation, and turning radii, necessitating dedicated single-bottle slat chains, package conveyors, and pallet conveyors rather than a universal conveyor layout. Typical post-line routes include bottle temperature adjustment, air-drying, labeling, coding, film wrapping, palletizing, and stretch wrapping. Each equipment infeed establishes in-bound status, entry permission, full-load, and fault signals, allowing the conveying system to adjust speeds hierarchically based on buffer occupancy. Bottle air-drying and laser coding serve as inline auxiliary stations integrated into bottle transport and labeling trigger logic.
Key Design and Technical Details
| Design Object | Technical Description |
|---|---|
| Single-Bottle Transport | Slat chains, guide rails, and lubrication methods selected based on bottle base stability, temperature, and line speed. |
| Package Conveyor | Belts, rollers, or slat chains selected according to film bundle or carton dimensions, weight, and bottom structure. |
| Equipment Transfer | Infeed spacing, discharge speed, and height benchmarks matched with labeling, wrapping, and palletizing equipment. |
| Bottle Air-Drying | Vortex or air-knife units removing surface moisture after warming, cooling, or rinsing to optimize labeling and coding conditions. |
| Coding Trigger | Container or package position sensors triggering laser coders, with coding equipment status participating in transport release permissions. |
| Accumulation and Recovery | Zoned sensing and speed cascading absorb short stoppages, releasing from downstream upward upon recovery. |
Main Components and Functions
| Component | Function |
|---|---|
| Flat-Top Chains or Modular Belts | Provide continuous support from container or package bases. |
| Guard Rails and Guides | Maintain container orientation and adapt to format changeovers. |
| Division, Convergence, and Turning Units | Organize layout and timing between multiple machines. |
| Zoned Drives | Ensure smooth transfer and short-term accumulation according to process speeds. |
| Detection and Line Control Units | Identify congestion, missing material, and fallen bottles while coordinating upstream and downstream speeds. |
Operation and Control
Operation and control encompass zoned speed control, congestion and missing-material detection, upstream and downstream start-stop cascading, container or package anomaly alarms, and maintenance emergency stop and safety circuits.
Cleaning and Maintenance
Cleaning and maintenance require ensuring proper drainage, cleaning accessibility, and maintenance access for chains, guides, and equipment bases, regularly cleaning air-dryer unit inlet filters, air knives, and spray nozzles, and scheduling inspections for transport wear, guide rail alignment, and lubrication changes affecting bottle flow stability.
Engineering Interfaces
Engineering interfaces connect filling and post-filling equipment, labeling and packaging units, the palletizer infeed, and the central line control system.
Project Definition Inputs
| Input Parameter | Description |
|---|---|
| Packaging Object | Dimensions and weight of single bottles, bundles, or cartons. |
| Operational Speed | Target line speed and maximum throughput. |
| Geometry and Center of Gravity | Bottom surface, center of gravity, turning radii, and elevation gradients. |
| Accumulation and Interface | Required accumulation time, equipment interface height, and format changeover scope. |
Options
Optional configurations include vortex bottle drying or air-knife drying, laser coding stations with container and package triggers, branching, converging, turning, elevating, and cross-line transport, as well as zoned variable frequency drives, buffer occupancy visualization, and fault localization.
Project Reference
Project reference only — not a standard specification.
| Project Description | Configuration / Parameter | Use Boundary |
|---|---|---|
| 10,000 BPH, 300 mL PET Water Line | Air-drying equipment CG-1, 10,000 BPH, 7.5 kW | Project Configuration |
| 10,000 BPH, 330 mL PET CSD Line | Air-drying equipment CG-1, 10,000 BPH, 5.5 kW | Project Configuration |
| 5,000 BPH, 500 mL PET Hot-Fill Line | Post-line sequence including spray cooling followed by air drying, sleeve labeling, coding, and film wrapping | Project Operational Flow |
Frequently Asked Questions
Q: Why are separate conveyor types required for single bottles versus secondary packages?
A: Single bottles, film bundles, and full pallets have different base support requirements, weights, and stability profiles, requiring dedicated slat chains, package belts, and roller conveyors to maintain smooth transfer and prevent tipping.
Q: How do zoned accumulation and speed cascading function during brief downstream pauses?
A: Zoned photoelectric sensors detect line congestion or downstream slowing, initiating hierarchical speed reductions and controlled accumulation to absorb short stoppages without shutting down upstream filling equipment.
Call to Action
Contact our engineering team to evaluate your plant layout, line speed requirements, and container specifications for a customized conveying system proposal.