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Large-format three-station thermoforming machine

Haofeng intelligent manufacturing Three-station Haofeng intelligent manufacturing Large-format three-station Haofeng intelligent manufacturing

Haofeng 3-station positive-negative pressure machine is the third-generation fully automatic multi-station thermoforming equipment launched by Haofeng (Tianjin) intelligent manufacturing for high-demand, multi-category blister packaging. It adopts a core process of positive-pressure + negative-pressure combination forming + three-stage workstation circulation, featuring high precision, high adaptability, and high-speed stability. It is compatible with mainstream thermoplastic sheets such as PP, PET, PS, and PLA, and is widely used in the large-scale production of blister packaging in fields such as food, electronics, daily necessities, and medical care.

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The equipment adopts a three-stage workstation cycle design, dividing production into independent yet coordinated processes for efficient and stable operation:

Servo sheet feeding + three-stage heating

  • The servo-driven chain rail pulls the sheets (7-series anodized aluminum alloy chain rail), ensuring precise and stall-free sheet pulling; the chain rail width can be adjusted synchronously or independently via electric control.
  • A three-stage independent temperature-controlled heating furnace is configured, with each zone equipped with individually controlled heating elements (Japanese Yamatake temperature controllers + imported heating elements), enabling rapid and uniform heating to meet the heating requirements of different material sheets.
  • The electric furnace supports automatic removal, making mold changes and furnace cleaning more convenient and reducing downtime.

Positive and negative pressure collaborative forming (core advantage)

  • The mold platform is cast from ductile iron and paired with a heavy-duty precision planetary reducer, achieving a parallelism of 3丝 (0.03mm) between the upper and lower molds, ensuring stable operation without deviation.
  • In the forming stage, negative pressure is first used for pre-forming to closely conform to the mold contour, followed by positive pressure for supplementary forming, thereby solving the problems of “insufficient filling in deep cavities and uneven wall thickness” inherent in traditional single-negative-pressure forming. This results in products with stable weight, rich details, and no deformation.
  • Servo-driven upper mold stretching is supported, allowing precise control over forming depth to accommodate shallow cups, deep boxes, and specially shaped thermoformed products.

Precise punching + automatic stacking

  • A dual-chain lifting mold platform combined with a step-by-step lubrication distributor ensures stable punching operations, with a cutting force of up to 120 tons, suitable for punching large-area and complex die-cut products.
  • An automatic forming clamping frame is configured, providing stronger sealing to reduce air leakage during forming and improve yield.
  • The end-of-line robotic arm uses suction cups for automatic stacking, counting, and output, meeting the stacking needs of products of various sizes and capable of directly connecting to packaging lines.

Intelligent control system

  • An CNC numerical control system is adopted (superior to conventional PLCs), featuring an 8-axis handwheel for precise mold adjustment, offering accurate and convenient operation, and supporting the storage and one-click recall of 500 sets of process parameters.
  • The system integrates self-diagnosis of faults and remote monitoring functions, reducing maintenance costs and supporting switching between manual and automatic modes for easy mold changes and debugging.