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What should I do if the screw of the injection molding machine is abnormal?

TIME:2021-04-13 Share

If it is found that the screw of the injection molding machine is experiencing problems during the production process, the consequences will be very serious. Therefore, once it is found that the screw of the injection molding machine is abnormal, it still needs to be resolved as soon as possible. Don't let the fault become more and more serious, affecting the normal use, let the injection molding machine manufacturer tell you some solutions to the abnormal screw of the injection molding machine.

In the production process of injection molding machine used by injection molding machine manufacturers, there are often clogging and non-rotating phenomena. Usually the protection device of the injection molding machine does not work, the operator should take the following actions immediately. shut down. In many cases, the screw of the injection molding machine can still rotate, but the speed is much slower. At the same time, the metal melon made a sharp sound, and the current rose sharply.

PET Special Injection Machine
Based on the results of years of investigation and research by professional injection molding machine manufacturers, it is believed that there are several reasons: the thermal expansion coefficient of the screw is too different from the material used, and the barrel of the injection molding machine is heated. Because there is cooling, if the screw is not cooled, it can be locked; the screw design of the injection molding machine is unreasonable, and the easy case is the screw. The design compression ratio is too large, and the screw is deformed during use; the temperature of the barrel is too low or the filter plate is blocked, which causes the pressure of the barrel to rise sharply, causing the screw to deform; the screw or barrel is deformed. Foreign matter enters the barrel and gets stuck on the screw. If it is a ferrous metal foreign matter, it will cause great damage to the screw and barrel.

When the injection molding machine is in normal operation, the injection molding machine manufacturer must carry out daily and regular maintenance according to the rules and regulations, and the daily maintenance is mainly responsible for cleaning, tightening, lubricating, adjusting, and anti-corrosion. This is checked every day. Regular maintenance is to perform several maintenance and repairs on machinery and equipment within a specified time, focusing on cleaning, lubricating, adjusting, dismantling, and overhauling. The maintenance professionals of the injection molding machine manufacturer shall be responsible for the implementation of the maintenance. Records and acceptance shall be provided. For equipment exceeding and close to the end of life, the overhaul acceptance certificate shall be provided before the installation, and the scrap record shall be made at the same time.

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