Blown film line in operation often encounter problems

Blown film line in operation often encounter problems

In blown film machine, blown film, easy to appear this or that problem, at that moment, is to find a solution, today a blown film machine, blown film process prone to problems. Lateral film thickness is not uniform, fundamental reason for the mouth of the blown film tools and the rate of uneven, mediation solutions such as: (1) the die lip clearance is undeserved, partial adjustment or full again. (2) the cavity of sundry, thus cause logistics disorders, discharging, shall regularly clean mouth mold. (3) the melt pressure or temperature is too high or too volatile, so cause extrusion melt flow instability, uneven thickness, can mediate temperature, extrusion speed improvement.

Dalian blown film unit may be damaged due to transport electrical components or thrum off, etc., should be strict inspection, to ensure the personal safety, open authority must good earthed, and then, turning on the power supply to strictly check each part motor operation is correct, and note any leakage phenomenon. When installation should pay attention to adjust the center line of the extruder head vertical and level with the traction roller center shall not deviate from the skewed. Winding is gradually increasing because of the winding diameter please pay attention to the cooperate with traction speed and winding speed, please adjust. Host after open, pay close attention to the host running situation and timely adjust, amend, electrical instrumentation, controller to ensure their normal operation. Host gear box, traction reducer should often come on, change gear oil, new in the use of 10 days or so, please change new gear oil, in order to ensure the normal operation of the rotating parts, pay attention to refuel, prevent damage of stuck and overheating, but should also check the connection parts of tight situation, prevent Luo Shuan is loose. Bubble should maintain a moderate amount of compressed air in the pipe, in the process of traction, compressed air will leak out, please. Always clean up to replace the filter on the inside the nose to prevent blockage, beware of plastic particles mixed with iron shaw, impurities such as sand, stone to avoid damage of screw cylinder. It is strictly prohibited without material space maneuver to turn, in the cylinder, tee, die temperature, that do not meet the requirements can't start the host. Start the main motor, start the motor after slowly speed; Close the main motor, should slow down and then turn it off. 10, preheating, heat shoulds not be too long and too high, so as to avoid material mouth plug.