Release time:

2023-01-09

During the operation of the casting film machine, the slurry flows out from the machine head and falls onto the cooling roller, which cools the slurry and forms the initial shape. The cooling roller rotates clockwise to drive the initial formed film to rotate, and the air knife enables the film to tightly adhere to the cooling roller. The initial thickness of the film is controlled by adjusting the gap between the scraper and the cooling roller. The film treated by the scraper enters the heating and drying section to remove moisture and achieve the purpose of heating the film, Next, the film enters the stretching section. As the rotational speed of the stretching section is different from that of the cooling roller, the film is stretched. The nozzle allows the film to cling tightly to the conveyor belt. The second scraper compresses the film again, making its quality better. Then, the film is rolled into a tube through the winding mouth. What are the precautions for using a casting film machine? 1. Operators should wear necessary labor protection equipment, such as canvas gloves, work clothes, and work hats, and their arms should not be exposed. 2. Before starting each time, check whether the screws in the rotating and driving parts of the instrument are tightened, whether the cooling water in the neck of the casting machine is turned on, and it is strictly prohibited to start the casting machine motor without water Before the motor of the casting film machine can be started, there should be a sample in the hopper. It is strictly prohibited to idle the casting film machine motor without any materials. 4. When the casting film machine and mold are operating at high temperatures (temperatures above 200 ℃), it is important to take safety precautions and operate with caution to avoid scalding accidents. Before pulling the film, open the cooling water and refrigeration system device of the roller, and ensure that the inlet water temperature of the refrigeration technology device is less than 30 ℃. 6. Film stretching is a manual operation between transmission devices. Pay attention to safety protection during operation to prevent hands from being caught by the transmission system device. In the event of an accident, the emergency stop button should be immediately activated. After handling the unexpected situation, press the reset button to turn on the machine. 7. Do not use emergency devices (emergency stop buttons) to stop the equipment during normal use. 8. Use hard metal materials (such as stainless steel) to contact the surface of the cold rolling roller and the mold lip to avoid scratching the surface. What are the operating steps of a casting film machine? Check if there are any issues with the power supply, temperature, and cooling water. Turn on the power supply, start the casting film machine, set parameters, and when the temperature and other parameters remain unchanged, add materials to the hopper. Start the screw, and plastic particles enter the machine barrel through the hopper. After being plasticized by heat and shear force, they melt into a flowing state. Under the push of the screw, the melt is extruded from the mold head through various heating sections at a certain pressure and speed. Then, by adjusting the thickness of the membrane lip, the desired thickness of the membrane can be made. After the material information flows out, lock a workstation, start the cold roller, adjust the position of the air knife, and start the traction roller and coiling roller. The membrane is pulled by the driven roller, tension roller, and traction roller, and then wound on the winding roller. The parameters are adjusted again until a suitable membrane is obtained and the device is closed.

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