Professional analysis of the working principle of pillow packaging machine

1. Core Workflow
‌Film Conveying and Positioning‌
The roll packaging film is unfolded by the tension adjustment system, and the printed color mark is captured by the photoelectric sensor (positioning accuracy ±0.5mm). The servo system dynamically compensates for the film stretching error to ensure accurate sealing and cutting positions.
‌Product Loading‌
The conveyor belt pushes the packaged material to the former. The feed trajectory of the special-shaped product is adjusted by 3D visual positioning (adapting to 8 permutations and combinations), and the regular product directly enters the cylindrical cavity formed by the film.
‌Three-dimensional sealing‌
‌Longitudinal sealing‌: The middle sealing wheel completes hot melt bonding in the length direction of the film at a temperature of 130-180℃ (sealing strength ≥15N/15mm)
‌Horizontal sealing‌: The rotary sealing knife synchronously cuts and seals both ends, and the anti-miscutting system is used to reduce the scrap rate
‌Finished product output‌
The cut independent packaging is shaped in the cooling section and output through the flat belt conveyor system (speed matching 30-230 packages/minute)

II. Key technical modules
Photoelectric positioning system, three error compensation methods of forward and backward/braking/synchronous, tracking error ≤0.3mm
Servo control system, PLC+HMI human-machine interface, support 20 recipe storage Speed ​​ratio 1:10
Heat sealing system, double-sided heating plate with silicone pressure wheel, sealing time 0.5-3 seconds adjustable, temperature control accuracy ±1℃

III. Typical application scenarios
‌Food industry‌: Biscuits/bread and other regular product packaging, qualified rate can reach 99.8%
‌Medical field‌: GMP-certified clean design, support aluminum-plastic composite film sealing
‌Industrial parts‌: Customized formers adapted to special-shaped parts packaging
This principle has achieved the upgrade from traditional mechanical transmission to intelligent servo control. The latest model can monitor energy consumption and consumables in real time through the IoT interface. Specific parameters need to adjust the heat sealing temperature and conveying speed according to the characteristics of the packaging