Composite Bubble Mailer Making Machine

• The unwinding frame adopts an integrated dual-station structure, allowing easy roll replacement and fast roll changeover for composite bubble film materials.

• Consists of limit side plates, traction feeding system, hot-press folding line, and buffer swing arm.
• Limit side plates ensure lateral alignment of the material entering from the unwinding station.
• The traction feeding system uses an AC motor, frequency inverter, and rubber feeding rollers to deliver material smoothly to the inclined support plate.

• Includes inclined support plate, folding mechanism, and folding platform.
• The inclined support plate stabilizes material movement toward the folding mechanism.
• The folding device can be moved as a whole, with independent left-right adjustment; small size deviations can be corrected by adjusting the folding rods.
• The folding platform uses photoelectric sensors, pneumatic pressure wheels, and pressure rollers for tracking and correction to ensure consistent flap dimensions.

• The main control system consists of a motion controller, color touch screen, rotary operation platform, and electrical cabinet, ensuring stable and efficient machine operation.
• Transmission uses custom synchronous pulleys and synchronous belts to deliver uniform, stable power with no slipping.
• The traction section uses servo motors driving multiple belt groups via synchronous pulleys; the special traction belt arrangement ensures stable feeding without slippage at high speed.

• The length-tracking section includes a high-sensitivity color mark sensor, motion controller, and servo motor to maintain consistent product length for blank or printed bags.

• The sealing section consists of inverter, three-phase asynchronous motor, gearbox, pin row, hot-sealing knife, and cold-press knife. It performs exhaust, thermal sealing, and cold shaping sequentially. The heavy-duty low-temperature sealing knife structure ensures strong, neat sealing edges.
• The hot-melt glue system includes an EPC-adjustable glue stand and large-capacity glue machine. It evenly coats release paper or release film and bonds it onto the bag opening. The glue machine is equipped with dual glue guns.
• The cutting section includes a servo motor system, stepper motor system, and cutting mechanism, enabling instant and precise cutting.
• The longitudinal slitting unit includes slitting knives, adjustable knife frame, and EPC system, ensuring precise slitting accuracy when producing two-out small bags.

• The collecting unit consists of a transmission system, collecting platform, and drive motor, ensuring finished products are output in order and neatly arranged.