Copper sheet and bronze bar wrapping machine

Enhanced Solutions for Copper Sheet and Bronze Bar Packaging: The Horizontal Orbital Wrapping Machine

Handling and packaging long, valuable metal products like copper sheets and bronze bars presents unique challenges. These materials are susceptible to surface damage, oxidation, and deformation during transit and storage. An effective solution lies in specialized automated equipment, specifically the Copper Sheet and Bronze Bar Horizontal Orbital Wrapping Machine. This system provides robust protection and enhances operational efficiency.

1. Core Functionality and Operating Principle

This machine employs an orbital wrapping mechanism. Here’s a breakdown of the process:

• Infeed: Copper sheets or bronze bars are fed onto the machine’s conveyor system, typically equipped with driven rollers designed to handle heavy loads without marring the product surface.
• Orbital Wrapping: As the product moves horizontally through the machine, a rotating ring carrying a roll of wrapping material (like stretch film or VCI paper) revolves around it. This orbital motion ensures complete coverage along the length of the product.
• Material Application & Tension Control: The wrapping material is dispensed from the carriage mounted on the rotating ring. Sophisticated tension control systems (often utilizing pre-stretch mechanisms for stretch film) ensure the material is applied tightly and consistently, securing the product without excessive pressure that could cause damage. The degree of overlap can usually be adjusted.
• Cutting and Sealing: Upon completion of the wrap cycle (often detected by sensors), an automated system cuts the wrapping material and secures the tail end to the package, ensuring a clean finish.
• Outfeed: The fully wrapped product exits the machine via the outfeed conveyor, ready for storage or shipment.

  

  2. Key Technical Specifications

While specific parameters vary by model and manufacturer, typical specifications for a Copper Sheet and Bronze Bar Wrapping Machine include:

• Product Dimensions:
  • Cross-section: Capable of handling various profiles, often ranging from small diameters/widths up to 500mm x 500mm or more.
  • Length: Designed for long products, minimum lengths might be around 1 meter, with maximums determined by conveyor configuration (potentially 6m, 12m, or custom).
• Wrapping Ring:
  • Diameter: Sized appropriately for the maximum product cross-section.
  • Rotational Speed: Adjustable, often ranging from 30 to 100 RPM, depending on the ring size and application requirements.
• Conveyor System:
  • Type: Powered rollers (often PU-coated or rubberized to prevent scratches).
  • Speed: Variable speed, synchronized with the ring speed for consistent wrapping overlap, typically 2-15 m/min.
• Wrapping Materials:
  • LLDPE Stretch Film (various gauges)
  • VCI (Volatile Corrosion Inhibitor) Stretch Film or Paper (essential for copper/bronze)
  • HDPE Woven Fabric
  • Paper/Kraft Paper
• Control System:
  • PLC (Programmable Logic Controller) for process automation.
  • HMI (Human-Machine Interface) Touch Screen for easy operation, parameter setting (wrap tension, overlap, conveyor speed), and diagnostics.
• Power Requirements: Typically 3-phase power (e.g., 480V/60Hz or 380V/50Hz), dependent on motor sizes.
• Optional Features:
  • Automatic top pressers (pneumatic or hydraulic) for stabilizing taller or unstable loads.
  • Infeed/Outfeed conveyor extensions.
  • Integration with weighing systems or labeling units.
  • Safety fencing and light curtains.