With the development of industrialization, the development of film blowers conforms to the needs of the market. In the process of development, they continue to innovate and break through, so as to achieve the production purpose of the market.
In order to meet the needs for some special functions of plastic film packaging materials in the production process, a variety of characteristic materials (such as breathable, waterproof, thermal insulation, toughness, etc.) are blown and co extruded together to form a multi-functional plastic film, and a multi-layer co extrusion film blower is developed. The purpose of multi-layer co extrusion film blowing machine is to give play to the advantages of multiple materials and avoid some disadvantages of single material or single layer film blowing machine.
In order to obtain plastic bag products with controllable quality in the process of film blowing machine, it is necessary to control all processing links in place. In general, the processing process of the plastic film blowing machine is divided into feeding heating, traction, and controlled pneumatic edging. After the air is added to the blowhole of the film head, the air is added to the middle of the round film, and the film is in a straight line upward. The size of the plastic bag is controlled by the amount of air blowing, and then the film is stabilized through the film stabilizer. The thickness is controlled by the main engine and the traction speed. It can be understood that the faster the speed of the main engine is, the faster the feeding speed will be, and the film will be thick. The traction is just the opposite. The faster the traction is, the thinner the film will be. This is the most important link.