Generally, various problems are prone to occur during the blow molding process, such as broken glass bottles, polymerization at the bottom, skewed bottom, thin bottle body, whitening of the glass bottle, etc. How to distinguish whether it is a blowing problem or a preform problem. Now we analyze the different situations on the blown glass bottles;

1. Reasons why the glass bottle is blown: 

1. The embryo tube is not heated enough and is not baked thoroughly; 

2. The tensioning rod was not pulled in time (fact); 

3. The tensioning rod was very slow; 

4. The temperature protection was turned on but the upper and lower temperature limits Set too high.  

2. Solutions to common faults of blow molding products: 

1. The production volume will not change. Lower operating voltage. The production volume will be reduced without changing the working voltage, which means the time of the secondary air blow inspection will be extended.  

2. After clamping the exhaust pipe, forcefully push the tensioning rod down to 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 drawing cylinder to a larger value.  

4. Lower the minimum temperature limit. Generally, PET bottle preforms are set to 85~95 degrees, and the limit can be set to 125~130 degrees. The general faults of blow molding processing are introduced here. I hope it can be helpful to everyone. If you have needs in this area, you can consult us online and we will serve you wholeheartedly!