Troubleshooting common problems of a liquid blister packaging machine is crucial for maintaining its efficiency and ensuring the quality of the packaged products. As a supplier of liquid blister packaging machines, I’ve encountered various issues over the years and have developed effective strategies to address them. In this blog, I’ll share some of the most common problems and how to troubleshoot them. Liquid Blister Packaging Machine
1. Sealing Issues
One of the most frequent problems with liquid blister packaging machines is sealing issues. Poor seals can lead to leakage, which not only affects the product quality but also causes waste.
Causes
- Temperature Problems: If the sealing temperature is too low, the plastic film may not melt properly, resulting in a weak seal. On the other hand, if the temperature is too high, the film may burn, creating holes and also leading to a poor seal.
- Pressure Issues: Insufficient pressure during the sealing process can prevent the film from bonding correctly. This can be due to a malfunctioning pressure system or improper adjustment of the pressure settings.
- Contamination: Dirt, dust, or liquid residues on the sealing area can interfere with the sealing process, preventing a proper bond.
Troubleshooting
- Check the Temperature: Use a temperature sensor to measure the actual sealing temperature. Compare it with the recommended temperature for the specific plastic film being used. Adjust the temperature settings accordingly. If the temperature is not stable, check the heating elements and the temperature control system for any malfunctions.
- Adjust the Pressure: Ensure that the pressure is evenly distributed across the sealing area. Check the pressure gauge and adjust the pressure settings as needed. If the pressure is too low, check the air compressor or hydraulic system for any leaks or malfunctions.
- Clean the Sealing Area: Regularly clean the sealing area to remove any dirt, dust, or liquid residues. Use a clean, dry cloth or a mild cleaning solution. Make sure the area is completely dry before starting the sealing process.
2. Film Feeding Problems
Another common issue is film feeding problems. If the film does not feed smoothly, it can cause misalignment, wrinkles, or even jams, which can disrupt the packaging process.
Causes
- Incorrect Film Tension: If the film tension is too high, it can cause the film to stretch or break. If the tension is too low, the film may sag or wrinkle.
- Film Roll Installation: Improper installation of the film roll can cause the film to feed unevenly. For example, if the film roll is not centered or if the core is damaged, it can lead to feeding problems.
- Feed Roll Malfunctions: The feed rolls are responsible for pulling the film through the machine. If the feed rolls are dirty, worn, or not rotating properly, it can cause the film to feed unevenly.
Troubleshooting
- Adjust the Film Tension: Use the tension control mechanism on the machine to adjust the film tension. Start with a low tension and gradually increase it until the film feeds smoothly. Make sure the tension is consistent across the width of the film.
- Check the Film Roll Installation: Ensure that the film roll is installed correctly. Make sure the core is centered and the film is unwinding smoothly. If the core is damaged, replace it with a new one.
- Clean and Maintain the Feed Rolls: Regularly clean the feed rolls to remove any dirt, dust, or adhesive residues. Check the rolls for wear and tear and replace them if necessary. Make sure the rolls are rotating freely and evenly.
3. Filling Problems
Filling problems can occur when the liquid is not dispensed accurately or evenly into the blister cavities. This can lead to under – filled or over – filled blisters, which can affect the product quality and compliance.
Causes
- Pump Malfunctions: The pump is responsible for transferring the liquid from the reservoir to the blister cavities. If the pump is not working properly, it can cause inconsistent filling. This can be due to a clogged pump, a worn – out pump diaphragm, or a malfunctioning pump motor.
- Nozzle Blockages: The nozzles are used to dispense the liquid into the blister cavities. If the nozzles are blocked, it can prevent the liquid from flowing properly, resulting in under – filled blisters.
- Liquid Viscosity: The viscosity of the liquid can affect the filling process. If the liquid is too thick, it may not flow easily through the pump and nozzles, causing filling problems.
Troubleshooting
- Check the Pump: Inspect the pump for any signs of damage or blockages. Clean the pump and replace any worn – out parts, such as the pump diaphragm. Check the pump motor and ensure that it is functioning properly.
- Clear the Nozzles: Use a cleaning solution to clear any blockages in the nozzles. You can also use a fine needle or a nozzle cleaning tool to remove any debris. Make sure the nozzles are properly aligned and the liquid is flowing smoothly.
- Adjust the Liquid Viscosity: If the liquid is too thick, you may need to adjust its viscosity. This can be done by adding a thinner or by heating the liquid to reduce its viscosity. Make sure to follow the manufacturer’s recommendations for adjusting the viscosity.
4. Blister Forming Problems
Blister forming problems can occur when the blisters are not formed correctly. This can include issues such as uneven blister shapes, thin or thick walls, or blisters that do not release from the mold properly.
Causes
- Mold Temperature: The temperature of the mold is crucial for blister forming. If the mold temperature is too low, the plastic film may not soften enough to form the blisters properly. If the temperature is too high, the film may over – stretch or burn.
- Mold Design: The design of the mold can also affect the blister forming process. If the mold has sharp edges or uneven surfaces, it can cause the blisters to form unevenly.
- Film Quality: The quality of the plastic film can also impact the blister forming process. If the film has inconsistent thickness or poor heat – resistance, it can lead to blister forming problems.
Troubleshooting
- Adjust the Mold Temperature: Use a temperature sensor to measure the mold temperature. Compare it with the recommended temperature for the specific plastic film being used. Adjust the temperature settings accordingly. If the temperature is not stable, check the heating system for any malfunctions.
- Inspect the Mold: Check the mold for any signs of damage or wear. Make sure the mold is clean and free of any debris. If the mold has sharp edges or uneven surfaces, it may need to be repaired or replaced.
- Choose the Right Film: Select a high – quality plastic film that is suitable for blister forming. Make sure the film has consistent thickness and good heat – resistance. Follow the manufacturer’s recommendations for the film type and thickness.
5. Electrical and Control System Problems
Electrical and control system problems can cause the machine to malfunction or stop working altogether. These problems can be difficult to diagnose and repair, but they are essential to address to ensure the proper operation of the machine.
Causes
- Faulty Wiring: Loose or damaged wiring can cause electrical shorts or intermittent connections, which can lead to machine malfunctions.
- Control Panel Malfunctions: The control panel is used to operate the machine and set the various parameters. If the control panel is not working properly, it can cause the machine to operate incorrectly.
- Sensor Failures: Sensors are used to detect various conditions, such as film presence, blister formation, and filling levels. If a sensor fails, it can cause the machine to stop working or operate incorrectly.
Troubleshooting
- Check the Wiring: Inspect the wiring for any signs of damage or loose connections. Make sure all the wires are properly connected and secured. If you find any damaged wires, replace them with new ones.
- Test the Control Panel: Use a diagnostic tool to test the control panel. Check for any error messages or abnormal readings. If the control panel is not working properly, it may need to be repaired or replaced.
- Replace the Sensors: If a sensor fails, replace it with a new one. Make sure to follow the manufacturer’s instructions for installing and calibrating the sensor.
In conclusion, troubleshooting common problems of a liquid blister packaging machine requires a systematic approach. By identifying the root causes of the problems and taking appropriate corrective actions, you can ensure the efficient operation of the machine and the quality of the packaged products. If you encounter any problems that you are unable to solve on your own, don’t hesitate to contact us. As a professional liquid blister packaging machine supplier, we have a team of experienced technicians who can provide you with technical support and assistance. Whether you need help with installation, maintenance, or troubleshooting, we are here to help. Contact us today to discuss your specific needs and find the best solution for your packaging requirements.
Blister Packing Machine References
- Packaging Machinery Handbook, various authors
- Technical manuals of liquid blister packaging machines
Zhejiang Litai Intelligent Machinery Co., Ltd.
Zhejiang Litai Intelligent Machinery Co., Ltd. is well-known as one of the leading liquid blister packaging machine manufacturers and suppliers in China since 1998. Please rest assured to buy high quality liquid blister packaging machine at competitive price from our factory. For more information, contact us now.
Address: No.88 Wangxin Road, Dongshan Street, Ruian, Zhejiang, China
E-mail: sales@hiipack.com
WebSite: https://www.antaipacking.com/
