How to deal with abnormal discharge of blow molding machine

Blow molding machines are machines that use the wind force from the machine to blow the plastic body to a certain shape of mold cavity after spraying out liquid plastic, thus making products. This kind of machine is called a blow molding machine. The plastic is melted and quantitatively extruded in the screw extruder, then formed through the mouth film, cooled by air ring, and then pulled by a tractor at a certain speed, and wound by a winder. So what should you do if you encounter abnormal discharge of the blow molding machine? Let the blow molding machine manufacturer give you a detailed introduction!

The screw discharge is unstable. It is generally manifested as the screw discharge is too fast or too slow or the discharge length is different. This generally requires looking for problems with the servo valve and electronic ruler of the hollow blow molding machine. Perhaps the servo valve or the electronic ruler is malfunctioning due to electromagnetic interference, affecting the stable discharge process of the screw. Another reason related to the electronic ruler is that the contamination of the electronic ruler will also affect the stable discharge.

There is no twisting before the screw discharges. Although this occurs before the discharge, it is also one of the abnormal discharge of the blow molding machine screw. The processing of raw materials is generally completed by the cooperation of temperature and screw. If there is a problem in the material twisting process, the problem will naturally appear in the temperature and screw. If there is no twisting, it may be because the temperature is too low and the material is not melted; or the temperature of the discharge port is too high, and the material will be blocked at the discharge port; the reason for the screw is that the screw has quality and performance problems.

The quality of the screw discharge is not good. You may wonder why the quality of the screw discharge is also considered one of the abnormal conditions of the screw discharge. Think about it, the material comes out of the screw. If all parts of the screw are normal, will there be a problem with the discharge quality? Therefore, the discharge quality problem is also related to the screw. What is the specific relationship?

Generally, it is manifested as poor temperature or poor screw function, which cannot match the actual production conditions, which will cause uneven melting of the raw materials, which is also the primary influencing factor. Why is the blow molding machine screw discharge abnormal? Different situations have different reasons. Everyone should understand that they can judge where the problem lies and take effective measures based on the situation they encounter.