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Three-side Sealing Bag Machine Solution
In today's increasingly growing food packaging industry, the demand for bags of plastic composite film and other materials has also increased. The three-side sealing bag machine is used for the production of various plastic-plastic, paper-plastic composite materials, which are widely used in plastic composite film, aluminum-plastic composite film, paper-plastic composite film and other three-side sealing. The bag is an ideal bag making device for all kinds of middle and sealed bags. At the same time, it is suitable for the manufacture of special-shaped bags such as stand-up bags, bump buckle bags and zipper bags.
System structure
1. The structure of the three-side sealing bag machine is mainly composed of the following parts:
• Rear discharge mechanism: the inverter is controlled by the magnetic powder clutch to control the discharge tension;
• heat sealing mechanism: driven by the frequency conversion device, to do the up and down reciprocating motion, the thermocouple heats the sealing knife to achieve the effect of sealing the bag, consisting of horizontal and vertical seals, transverse sealing on both sides of the bag for heat sealing, vertical sealing Heat sealing the bottom edge of the bag, the so-called three-side seal;
• Feeding mechanism: The feeding roller is driven by the servo to achieve the purpose of feeding. It is necessary to ensure that the heat sealing mechanism sends the set length of plastic bag to the overheating sealing mechanism before leaving the cutting roller and reaching the cutting roller again. There are two kinds of servo working modes close to the cutter. One is the fixed length mode: the pulse of the set length stops when the pulse is finished, and the other is the calibration mode: the low pulse search for the set pulse number, the color code The photoelectric signal stops. The other three servos are synchronized with each other;
• Cutting mechanism: cutting the bag with heat sealing;
2. The structure of the three-side sealing bag making machine is shown in the figure below (Figure 2).
Figure 2: Three-side sealing bag machine structure
