Why is the screw of the plastic blow molding machine abnormal?

Why is the screw of the plastic blow molding machine abnormal?

In the process of using the plastic blow molding machine, everyone has more or less encountered the situation that the screw of the plastic blow molding machine cannot discharge normally. Meper Machinery will discuss with you today why the screw of the plastic blow molding machine is abnormal.

Plastic blow molding machine screw discharge is abnormal, usually in the following ways:

·Slow discharge of screw

·Screw discharge length is different

·Before the screw discharges, there is no twisting

·The quality of the screw output is not good

As for why these situations exist? Why is the screw of the plastic blow molding machine not discharging normally? In the following content, Meper Machinery will give different reasons for different situations.

The slow discharge of the screw is different from the length of the discharge of the screw.

The abnormal performance of the screw discharge of these two plastic blow molding machines can be attributed to one reason, that is, the discharge of the blow molding machine is unstable. What is the reason for the unstable discharge of the blow molding machine?

Under normal circumstances, it is because the servo valve and electronic scale of the plastic blow molding machine fluctuate during operation after being subjected to electromagnetic interference, which affects the stability of the screw's output; in addition, the electronic scale of the blow molding machine equipment Failure or contamination is also one of the important factors affecting screw discharge. As for how it affects, you can refer to the reasons for the unstable feeding of the blow molding machine sorted out by Meper Machinery.

Before the screw discharges, there is no twisting

There are still many reasons for this situation. It may be that the heating temperature is too low and the plastic material in the screw does not melt; or the screw itself has quality and performance problems; it may also be that the temperature of the discharge port is too high, so the material will melt. blocked in the outlet.

The quality of the screw output is not good

The so-called poor quality of the output generally refers to: uneven material, impurities, etc. It will affect the subsequent molding production of the material. There are two reasons: one is that the temperature is not enough or the performance of the screw is not good, and the material is not melted uniformly; the other is that there is residual rubber at the feed port of the screw, which affects the quality of the material when the new material is discharged.

The reason why the screw of the plastic blow molding machine is abnormal, and Meper Machinery sorts out the reasons for different situations, is the above content. Only by understanding the reasons for the abnormal screw discharge can we find a suitable solution and take effective measures in time to minimize equipment downtime and failure losses.