Common faults in blow molding products

Generally, various problems are prone to occur during the blow molding process of products, such as blown glass bottles, bottom end aggregation, bottom end skewness, thin bottle body, and glass bottle whitening. How to distinguish between blowing problems and bottle preform problems. Now everyone is analyzing the different situations blown out of the glass bottle;

1、 Reason for glass bottle breakage:

1）. Insufficient heating of embryo tubes, not fully baked;  

2）. The Rashin pole was not pulled in time (exactly);  

3）. Rashen rod speed is very slow;  

4）. The temperature protection has been turned on, but the upper and lower temperature limits have been set too high.  

2、 Solutions to common faults in blow molding products:

1）. Widen the working voltage without changing the production volume. Reduce production without changing the working voltage, which means extending the time for secondary blowing inspection.  

2）. After locking the exhaust pipe, use force to push the pull rod down and touch the bottom of the mold, and tighten the limit switch nut. (Limited to cylinder adjustment for mechanical equipment only).  

3）. Adjust the relief valve on the Rashin cylinder to a larger size.  

4）. Lower the lower temperature limit. Generally, PET preforms are set to 85-95 degrees, and the limit can be set to 125-130 degrees. That's all for the general faults in blow molding processing. We hope it can be helpful to everyone. If you have any needs in this area, you can consult us online and we will be dedicated to serving you!