Automatic feeding system

flexiblepneumaticfor production lines

Overview
VOLDE PVC extruder feeding systems automate reliable transfer of dry blend or compound raw materials from central storage to extruder hoppers, ensuring continuous, controlled feeding for PVC insulation and sheath extrusion lines. Systems are sized for various capacities and numbers of lines to support planned, efficient cable manufacturing.

Integrated solutions from central storage to line feeding
Raw materials are typically kept in large silos or intermediate bunkers and distributed to several extrusion lines. VOLDE systems manage routing from storage to the required line and maintain continuous feeding for each extruder.

• Central silo solutions for PVC dry blend or compound
• Extruder-top bunkers and feed hoppers
• Line-based automatic material distribution
• Pneumatic or mechanical transfer options
• Simultaneous feeding of multiple production lines

Controlled feeding supporting line performance
Stable feeding rates and bunker designs that promote uniform flow are essential to extruder stability and consistent product dimensions. VOLDE systems are configured to match line consumption and include measures to prevent flow interruptions and bridging.

• Bunker volume selection matched to consumption rate
• Controlled filling and level management
• Bunker geometries to prevent bridging
• Flow-assist equipment for cohesive compounds
• Regular material supply to preserve throughput and product dimensions

Flexible system design for plant layout
Systems are engineered to fit existing plant layouts, distances and elevations, and to allow future line additions. Designs consider dust control and filter integration for cleaner operation.

• Plant-layout-compatible installation options
• Long-distance transfer capabilities
• Provision for future line additions
• Dust control and filter integration
• Low-maintenance and easy operation

Systems and automation
Typical subsystems and automation elements include microdosing (manual and automatic), process automation and PLC/SCADA monitoring for dosing, transfer control and data reporting.

• Manual micro-additive dosing systems
• Automatic micro-additive dosing / batch dosing processes
• Process automation (PLC / SCADA) for monitoring and control

Technical characteristics / specifications

• Central storage (silos) to line distribution architecture
• Extruder-top bunkers and feed hoppers sized per line consumption
• Pneumatic conveying and vacuum transfer options; mechanical transfer alternatives where applicable
• Controlled filling, level sensing and automated routing to avoid over/underfeeding
• Bunker geometry and anti-bridging features to ensure consistent material flow
• Optional flow-aid devices for cohesive or difficult-to-flow compounds
• PLC/SCADA integration for process automation, data logging and remote supervision
• Dust control measures and filter integration to reduce airborne dust during transfer
• Modular design to accommodate multiple lines and future expansions
• Low-maintenance components and serviceable installations