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Blister packaging method because of its applicability, by the use of various industries product packaging, such as medicine, food, daily necessities and other industries. In the daily production process of blister packaging machine you may often encounter a variety of headaches. These problems not only affect production efficiency, but also may lead to product quality decline. Then the following I will help you quickly identify and solve the most common blister packaging machine problems, so that your production line to run efficiently again.
Sealing problems are frequently encountered in the production of blister packaging machines. The failure to seal the product after packaging can lead to contamination and leakage problems, which can lead to the scrapping of the whole batch of product and cause huge losses. Especially for the pharmaceutical and food industries, this will affect product quality and safety, and consumers will have a negative impact on the brand.
Most of these blister package sealing problems are due to temperature control. Therefore you need to check if your heat sealing temperature is appropriate. Different materials and thicknesses of packages use different temperatures, too low a temperature will lead to incomplete sealing, while too high a temperature may burn the aluminum film or lead to uneven sealing affecting the appearance.
When faced with a sealing problem, you can immediately check these three key parameters:
- Temperature: Use an infrared thermometer to measure the actual sealing temperature and make sure it matches the setting.
- Pressure: Check the air pressure gauge reading to make sure the pressure is sufficient.
- Time: A proper extension of the sealing time may improve the sealing result.
Remember, these three parameters are interrelated. You may need to fine-tune them several times to find the optimal combination.
Here is a simple temperature setting guide to help you quickly find the right temperature range:
Material type |
Recommended temperature range (°C) |
PVC |
120-160 |
PET |
120-180 |
PP |
140-170 |
PS |
120-160 |
Note that this is only a reference range. You may need to fine-tune it for specific material qualities and environmental conditions.
Aluminum film wrapping material jamming or unevenness during the production process of a blister packaging machine can bring your entire production line to a standstill. This problem is usually caused by several factors: improper film tension, misaligned guide wheels, or a defect in the film wrap itself. This problem requires checking your tension control system to ensure that the aluminum film is neither too loose nor too tight. Double check all the guide wheels to make sure they are all in the correct position and angle. Check the quality of the aluminum film wrap to make sure there are no visible defects or irregularities.
When the aluminum film gets stuck, follow the 5 steps below:
1. Stop the machine immediately to prevent further damage.
2. Carefully inspect the jammed location to find the cause.
3. Gently remove the jammed material, taking care not to damage the equipment.
4. Check and adjust the tension control and guiding system.
5. Slowly restart the machine and closely monitor operation.
Deformation in the blister package molding cavity not only affects the aesthetics, but also affects the protection of the product. This problem is usually related to the molding temperature, pressure or cooling time. You need to make sure that your heating plate temperature reaches the proper temperature for the PVC package before the blister packaging machine is produced. Too high a temperature can lead to excessive softening of the PVC film, while too low a temperature can lead to incomplete molding. Check the air pressure system to make sure there is enough pressure to fully form the softened PVC film in the mold.
To solve molding problems, try the following adjustments:
- Gradually increase the molding temperature from a lower temperature until the desired result is achieved.
- Increase the forming pressure appropriately to ensure that the aluminum film is in full contact with the mold.
- Extend the cooling time to allow the package to fully set.
Each different material package has its own unique physical properties, so repeated trials are required to find the optimum setting.
Misplaced or missing product not only wastes packaging material, it also leads to production stoppages that affect productivity. This problem is usually related to the feeding system or positioning mechanism. Check that the feeding system is working properly to ensure that the product is accurately delivered to the specified position. Verify that the positioning plate or mold is not worn or damaged. Ensure that the machine operating speed is set appropriately to give enough time for the product to be properly seated.
The key to solving loading problems is accurate calibration. Here are some practical tips:
- Use a high-precision measuring tool to check that the position of the feeding system is in the proper position.
- Adjust the speed and cadence of the feed system to ensure synchronization with the blister packer drive.
- Consider using a visual inspection system to detect and correct errors.
Before starting production each day, make sure your operator completes the following checks:
- Visually inspect all moving parts to ensure no visible wear or damage.
- Check and clean the vacuum system and air lines.
- Verify that all safety devices are in proper working order.
- Check the material inventory to ensure that it is sufficient for the day's production requirements.
- Run a few test cycles to make sure everything is functioning properly.
At least once a week, schedule time to complete the following maintenance tasks:
- Thoroughly clean the entire machine, especially the mold and heating areas.
- Check and lubricate all moving parts.
- Calibrate temperature and pressure sensors.
- Check electrical connections to ensure there are no loose or worn connections.
- Update the maintenance log with all problems found and actions taken.
Perform a monthly in-depth maintenance, including:
- Disassemble and thoroughly clean critical components, such as heating plates and molding dies.
- Inspect and replace worn components such as seals and drive belts.
- Perform a full calibration, including temperature, pressure and positioning systems.
- Update software and firmware (if applicable).
- Organize a team meeting to discuss problems encountered over the past month and suggestions for improvement.
By implementing these preventive maintenance measures, you can greatly reduce the probability of unexpected breakdowns, extend the life of your equipment, and ensure consistent product quality.
Armed with these tips, you can keep your blister packer in top shape, increase productivity, and reduce waste and downtime. Remember, timely problem identification and resolution, coupled with regular preventative maintenance, are key to ensuring your blister packaging operation runs smoothly. For more information on using blister packaging machines.