There can be several reasons why the blown film from the blown film machine has wrinkles. First of all, the working principle of the blown film machine is by heating the plastic particles and then blowing them into a film. During this process, if the temperature is too high or too low, it can cause the membrane to wrinkle. Secondly, the blowing ratio of the blown film machine will also affect the surface quality of the film. If the blowing ratio is too large, it will cause the thickness of the film to be uneven, resulting in wrinkles. In addition, the traction speed of the blown film machine and the stability of the traction roller also affect the surface quality of the film. If the traction speed is too fast or the traction roller is unstable, it can cause the membrane to wrinkle.
In order to solve this problem, we can take a series of measures. First of all, the temperature of the blown film machine needs to be adjusted to ensure that the plastic particles do not overheat or underheat during the heating process. Secondly, the blowing ratio of the blown film machine needs to be adjusted to obtain a more uniform film thickness. In addition, we also need to ensure that the traction speed and the stability of the traction roller are within a reasonable range. In the production process, it is also necessary to pay close attention to the operation status of the equipment and find and solve problems in time. In short, there are many reasons for the wrinkles of the film blown by the blown film machine, which need to be analyzed and solved from many aspects. By adjusting the equipment parameters and strengthening the equipment maintenance, the surface quality of the membrane can be effectively improved, so as to obtain better product results.