As an important plastic processing equipment, the blown film unit has a wide range of application prospects. With the continuous expansion of the plastic product market, the demand for blow molding machines is also growing. Therefore, blown film unit manufacturing enterprises need to continuously improve their technical level and service quality to adapt to market demand and contribute to the development of the industry.

Blowing film unit is an equipment used for producing various plastic films, mainly including components such as extruder, die head, cooling roller, stretching roller, and coiler. It is widely used in packaging, construction, agriculture, medical and other fields, providing protection and packaging for various products. The advantages of a blown film unit include high production efficiency, stable product quality, and simple operation. Through continuous improvement and optimization, the current blown film unit can produce plastic films of various specifications and colors to meet the needs of different industries and customers.

What are the common faults and solutions of Dalian blowing film unit?

Unstable temperature control: The temperature control of the blowing film unit is a key factor affecting the quality of the film. If the temperature control is unstable, it may lead to problems such as uneven film thickness and rough surface. The solution is to check if the heating system is working properly, clean the surface of the heating elements, and adjust the temperature parameters set on the control panel.

Poor cooling: The film needs to be cooled in a timely manner during the production process, otherwise it may cause product deformation or substandard quality. If poor cooling of the film blowing unit is found, the cooling system can be checked for normal operation, the cooling device can be cleaned, the speed and position of the cooling fan can be adjusted to ensure sufficient cooling of the film.

Extruder blockage: The extruder is a key component of the blowing film unit, and if the extruder is blocked, it can cause interruption in film production. The solution is to regularly clean the feed and discharge ports of the extruder to prevent impurities from entering the interior of the extruder. At the same time, filters can be installed to reduce the impact of impurities.

Excessive bubbles: During the film production process, there may be a problem of excessive bubbles, resulting in uneven film thickness. The solution is to adjust the position and size of the blowing port to evenly distribute bubbles on the surface of the film, and at the same time, increase the blowing amount appropriately to increase the uniformity of the film.

The working principle of the blown film unit is to melt the plastic through extrusion, then extrude it into a film shape through the mold head, and then blow and cool it through the blown film machine. The finished film is then rolled up by the coiling machine. Due to the use of high-tech extrusion technology, the blown film unit produces films with high transparency, good flatness, and strong stretchability, which are widely used in packaging, construction, agriculture and other fields.

The main components of the blown film unit include an extruder, die head, cooling rollers, traction device, cutting device, winding device, etc. The main function of an extruder is to heat and melt polymer compounds, and extrude them into shape. The mold head is a very important component in the blown film unit, responsible for extruding the synthetic resin and forming the desired film shape. The function of the cooling roller is to rapidly cool the thermoplastic material in order to maintain its desired shape and size. The function of the traction device is to stretch the produced film to the required size and thickness. The function of the cutting device is to cut the manufactured film into the required size and length. The function of the winding device is to roll the manufactured film into a certain length of roll.