The position of the bottom of the PET bottle is offset
For example:The position of the bottom of the PET bottle is offset
The cause of the problem:
1. The blowing time is too early
2. The stretching rod is not down to the end
3. The center line of the stretching rod and the bottle axis is offset
4. The embryo tube wall thickness is uneven or the injection density is uneven
5. The heating is uneven
1. Delay the blowing time or increase the descending speed of the stretching rod.
2. Adjust the position of the magnetic pole switch.
3. Adjust the position of the stretching rod.
4. Improve the quality of the embryo tube.
Keywords.:blow moulding machine, stretch blow molding technology.