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文章詳情

Automated batching system集中給料系統(tǒng)

日期:2025-03-20 15:55
瀏覽次數(shù):7
摘要:Automated batching system,中央供料系統(tǒng),Centralized feeding system,集中給料系統(tǒng)

Automated batching system,中央供料系統(tǒng),Centralized feeding system,集中給料系統(tǒng)

1. System Components and Workflow

1.1 Core Modules

  • Raw Material Storage:

    • Silos/Hoppers: Store virgin materials (e.g., PP, ABS), masterbatches, additives, and regrind. Equipped with level sensors and humidity monitors.

    • Dedicated Units:

      • For Injection Molding: Separate hoppers for colorants to enable rapid color changes.

      • For Extrusion: High-capacity silos for continuous production.

  • Preprocessing Units:

    • Dehumidifiers/Dryers: Target hygroscopic materials (e.g., PET, PA) with hot air circulation, reducing moisture to ≤50 ppm.

    • Metal Detectors & Filters: Remove contaminants (e.g., metal particles, dust) to protect downstream equipment.

  • Conveying System:

    • Vacuum/Pressure Pipes: Transport materials via negative pressure (vacuum) or positive pressure (blower).

    • Central Distributor: Routes materials to multiple machines with automatic valve switching.

  • Mixing & Dosing:

    • Loss-in-Weight (LIW) Feeders: Achieve ±0.1–0.5% dosing accuracy for masterbatches/additives.

    • Gravimetric Blenders: Pre-mix materials at preset ratios (e.g., 95% virgin + 5% regrind).

  • Control System:

    • PLC/SCADA Integration: Manages recipes, monitors real-time parameters (temperature, humidity, throughput), and enables fault diagnostics.

1.2 Operational Workflow

  1. Material Loading:

    • Raw materials are loaded into designated silos. Hygroscopic resins are pre-dried to specified moisture levels.

  2. Automated Conveying:

    • Vacuum pumps transport materials through insulated pipes to prevent cooling (critical for high-viscosity resins like HDPE).

  3. Precision Dosing & Mixing:

    • LIW feeders dynamically adjust material flow rates based on weight loss data.

    • Blenders ensure homogeneous mixtures (e.g., colorant dispersion CV < 5%).

  4. Machine Feeding:

    • Materials are delivered to individual machines (injection molders, extruders) via the distributor.

    • Hopper-level sensors trigger automatic refills to prevent downtime.

  5. Recycling:

    • Sprues, runners, and scrap are crushed, filtered, and reintroduced into the system (up to 95% reuse rate).

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