When using a bottle labeling machine in a production environment, various issues may arise that affect labeling quality and production efficiency. This article helps you quickly identify common problems, provides practical solutions, and explains how to prevent them.
Common Issues and Solutions
1. Labels Not Sticking Firmly
Symptoms: Labels peel off easily or curl at the edges.
Possible Causes:
- Label adhesive is not compatible with the bottle material.
- Bottle surface has dust, oil, or moisture.
- Incorrect labeling temperature or pressure settings.
Solutions:
- Choose labels with adhesive suitable for the bottle material (plastic, glass, or metal).
- Ensure the bottle surface is clean and dry; add a cleaning step if necessary.
- Adjust labeling parameters: ensure correct temperature for hot melt labels, and apply sufficient pressure for self-adhesive labels.
2. Label Misalignment or Skewing
Symptoms: Label is positioned incorrectly or appears crooked.
Possible Causes:
- Photoelectric sensor is misaligned or dirty.
- Bottles are unstable on the conveyor belt.
- Incorrect distance between the label applicator and bottle.
Solutions:
- Clean and recalibrate sensors.
- Adjust conveyor guide rails to keep bottles stable during movement.
- Check the label applicator position to ensure optimal distance from the bottle surface.
3. Bottle Jamming or Machine Stoppage
Symptoms: Machine stops frequently or bottles get stuck.
Possible Causes:
- Bottles jam on the conveyor or guide rails.
- Insufficient air pressure (for pneumatic machines).
- Electrical system malfunction.
Solutions:
- Stop the machine immediately, inspect and adjust the guide rail spacing.
- Ensure air supply pressure meets the 0.4–0.6 MPa requirement.
- Check electrical connections and eliminate sensor malfunctions.
Daily Maintenance Essentials
1. Mechanical Parts Maintenance
- Check conveyor belt tension daily.
- Clean label station and rollers weekly.
- Lubricate moving parts monthly.
2. Environment Management
- Maintain workshop temperature at 18–28°C and humidity below 70%.
- Avoid dusty environments that affect label adhesion.
- Ensure proper grounding to prevent static interference.
Tips for Improving Efficiency
Parameter Optimization:
- Adjust labeling speed according to bottle shape.
- Reduce speed slightly when labeling curved bottles.
- Increase output speed for small labels when appropriate.
Quality Control:
- Conduct a labeling test at the beginning of each shift.
- Regularly inspect label adhesion strength.
- Establish a quick-response mechanism for handling issues.
4. Preventive Maintenance Plan
Daily: Clean label station, check air pressure, test emergency stop.
Weekly: Calibrate sensors, inspect transmission components.
Monthly: Full maintenance, replace wear parts, back up software.
By following a systematic troubleshooting and preventive maintenance plan, equipment stability can be significantly improved. It is recommended to create an Equipment Inspection Checklist to record operating data. If problems occur repeatedly, contact the machine supplier for professional inspection and repair.
If you need further technical support, feel free to contact us for expert solutions.