The bottom of the bottle blown by the bottle blowing machine is not shaped?

The bottle blowing machine is mainly used to blow the bottle preforms. Many users feedback that the bottom of the bottle from the bottle blowing machine is not formed. There are many reasons for the bottom of the bottle. Causes and solutions.
1. Reasons for heating at the bottom of the bottle
At present, most automatic pet blow molding machines use infrared tube heating. The heating box is divided into multiple independent areas, and the temperature is controlled separately. Insufficient or low heating temperature at the bottom of the bottle will cause the bottom of the bottle to be unformed.
Solution: Adjust to the appropriate heating temperature at the bottom of the bottle. For detailed temperature adjustment, please consult the after-sales service of the pet blow molding machine manufacturer.
2. Reasons for stretching
Eccentric or too short stretch rods can cause the bottom of the bottle to be deformed or the force is too small, which can cause the bottom of the bottle to be unformed.
Solution: Adjust the position and length of the stretch rod.
3. Reasons for blowing
Insufficient high-pressure blowing, adjust the blowing pressure.
4. Reasons for the bottom mold
The gap between the bottom mold and the closed mold of the preform, the occurrence of air leakage or the incorrect height adjustment position of the bottom mold can cause the bottom of the bottle to be unformed.