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The self-sealing bag blown film machine is produced by adding dry polyethylene particles into the lower hopper, and entering the screw from the hopper by the weight of the particles themselves. When the pellets are in contact with the helical bevel of the thread, the rotating bevel faces the plastic and the bevel The vertical thrust of the surface moves the plastic particles forward. The production of the zipper bag blown film machine is described in detail below.
During the shifting process, due to the friction between the plastic and the screw, the plastic and the barrel, and the collision between the particles, it is also gradually melted due to the external heating of the barrel. The molten plastic is filtered by the machine head to remove impurities from the die die, cooled by the air ring, inflated through the herringbone plate, the traction roller, and wound to wind the finished film into a cylinder. Uses and Features The equipment adopts double frequency conversion speed regulation, which can save energy for you. The extruder, barrel and screw of the unit are made of high quality alloy steel, compacted and precision machined, with the best hardness and corrosion resistance. The specially designed screw has high output and good plasticization. Suitable for blowing low density polyethylene (HDPE) linear low density polyethylene (LLDPE) and other plastic films, widely used in food, clothing, garbage bags, vest bags and other civilian and industrial packaging.
Low-pressure polyethylene (HDPE) and linear low-density polyethylene (JJDPE) are new varieties of polyethylene produced in large quantities in the international market in recent years. Because of its excellent impact strength, puncture resistance, environmental stress crack resistance, low temperature resistance, especially micro film (1.5 wire thick film strength can be enough to resist the 3 wire thick high pressure polyethylene film) . The use cost is low, so it is used in a large amount for blown film. It can blow low pressure, high pressure, linear low density three kinds of polyethylene film, not only adapt to their new material blown film, but also suitable for their recycled plastic blown film, stable performance and reliable quality. This self-sealing bag blown film machine adopts special structure. The spiral rod extruder, advanced spiral die, flexible cooling air ring, reasonable aperture-type foam structure, to ensure uniform mixing of the above three kinds of polyethylene and different proportions.
