The label offset may be caused by the following reasons:

The shape of the bottles is irregular: for elliptical bottles or those with deformed shapes, the grasping mechanism's elasticity needs to be adjusted.
The material properties of the labels: paper labels are susceptible to humidity and should be operated in a constant temperature and humidity workshop; plastic labels need to control static electricity.
Mechanical transmission errors: wear of synchronous belts or delayed response of servo motors can cause position deviations.
The solutions include:
Visual inspection system: install cameras to provide real-time feedback on label positions and automatically correct the angle of the labeling head.
Pre-stretching technology: moderately stretch the labels to counteract the size changes caused by the bottle's contraction.
Regular calibration: use laser rangefinders to check the positioni