An envelope making machine is an automated system that folds, glues, and forms paper into various envelope types, featuring functions like continuous paper feeding, precise folding, uniform glue application (rotary or wheel), and electronic counting for high-speed, mass production of standard and custom envelopes. These machines automate tasks like feeding blanks, applying glue to flaps, folding, and sometimes window patching, improving efficiency for commercial use.
Key Components & Functions:
Paper Feeding: Uses suction or friction to feed paper blanks from a pile continuously, even while running.
Folding: Features precise folding units (e.g., roller fence) for accurate longitudinal and bottom folds.
Gluing: Rotary glue units apply glue evenly, with easy cleaning features.
Forming: Creates the basic envelope shape from flat blanks.
Window Patching (Optional): Applies transparent film to create window envelopes.
Counting & Delivery: Electronic counters group finished envelopes for packing.
Features & Types:
Automation: Ranges from fully automatic for mass production to clutch-operated models for easier control.
Versatility: Can produce various sizes and types, including pocket, flat bags, and express mailers.
Control: Equipped with PLC or simple control panels for ease of use and quick adjustments.
Speed: High speeds (e.g., 15,000-25,000 pcs/hour) for industrial efficiency.
