What is a blister packaging machine?
A blister packaging machine is a type of packaging equipment used to seal products between a transparent plastic blister and a base (usually aluminum foil or cardboard). It is primarily used for sealing products in industries such as granular pharmaceuticals, food, pharmaceuticals, and medical devices. It achieves this through heat sealing or gluing techniques and can also print batch numbers and imprint break lines.
What are the classifications of blister machines?
Based on their structure and operating principle, blister packaging machines are mainly divided into the following three categories:
Roller Blister Packaging Machine
Uses a roll-type plastic sheet for continuous conveying, which is heated, formed, filled, and sealed by rollers.
Flatbed/Flat-Plate Blister Packaging Machine
All functional modules (such as forming, heat sealing, and punching) are arranged on a single plane, and intermittent operations are performed using a flat-plate mold. It is suitable for multi-format, small to medium-volume production and is particularly advantageous for packaging pastes, liquids, and odd-shaped items.
Roller-Plate Blister Packaging Machine
Developed based on roller and flat-plate blister packaging machines, the roller-plate blister packaging machine uses a flat-plate forming unit for blow molding (positive pressure forming) and a roller-type sealing unit for sealing. High flexibility, suitable for special packaging needs.
What is a Flatbed Automatic Blister Packaging Machine?
The flat-plate automatic blister packaging machine is a type of intermittent blister packaging equipment with a flat layout. Its operating principle is as follows: the forming film is heated and softened by a flat-plate heating device. The softened film is blown into blisters using compressed air in the flat-plate forming device. The filling device fills the blister with the packaged product. The blister is then sent to a flat-plate sealing device, where the cover film and the forming film are sealed at the appropriate temperature and pressure. The batch number is then printed and the break line is pressed by a typing and stamping device. Finally, the punching device punches the product into the specified size. It is particularly suitable for products with thick packaging materials or pastes or liquids.
Taking the typical model DPB-250E-I as an example, its features are as follows:
It utilizes positive pressure molding, cylinder heat sealing, and robotic traction technologies for easy operation and reliable operation.
It is equipped with a helical gear reducer for low noise and long service life.
Its mold platen is accurately positioned, allowing for easy mold changes.
Its modular design facilitates maintenance and component replacement.
How do I operate a flat-bed automatic blister machine?
Preparation
Prepare the drugs and packaging materials, replace the batch number template, install the PVC and aluminum foil, check the cooling water, and connect the power and air supply.
Parameter Setting
Use the human-machine interface to set process parameters such as heating temperature, forming pressure, heat sealing time, and punching frequency.
Trial Run
Manually adjust the spacing between stations and perform a no-load run to verify registration accuracy and motion coordination.
Feeding Production
Start automatic mode, and the machine will complete the sheet forming, material filling, heat sealing, batch numbering, and punching processes at the set pace.
Monitoring and Adjustment
Check packaging quality in real time and fine-tune temperature or pressure parameters as necessary to ensure a complete seal and clear graphics.
What are the key components of this equipment?
Because the overall structure of a flat-plate automatic blister machine is complex and multifaceted, we'll discuss its core components below, module by module.
Heating system: Heating tubes, thermostats, thermocouples;
Forming and sealing units: Upper and lower heating plates, anvil heat-sealing plates, and cylinders;
Transmission system: Helical gear reducers, servo motors, cam mechanisms, chains, and sprockets. This is Hansheng Automation's specialty, specializing in the supply of these precision transmission components for packaging machinery. For example, we recently supplied a batch of custom sprockets to a packaging machine customer in Indonesia, with no after-sales issues.
Molds: Forming dies, sealing molds/plates, cutting dies, and embedding/batch coding tools;
Control system components: Temperature control modules , PLC controllers , and sensors . Hansheng Automation also provides these industrial control spare parts to customers as part of our FA parts support service.
Device parameter examples
|
Parameter Item |
Specification |
|
Model |
DPB-250E-I |
|
Power Supply |
380V / 220V |
|
Rated Power |
6.4 kW |
|
Max. Film Width |
260 mm |
|
Packaging Speed |
≤ 160 packs/min |
|
Machine Weight |
1600 kg |
|
Dimensions (L×W×H) |
2900 mm × 720 mm × 1550 mm |
|
Compatible Lidding |
Aluminum Foil |
|
Product Type |
Paste/Cream |
FAQ
Q: What products are flat-bed blister machines best suited for packaging?
A: They are suitable for pastes, semi-fluids, and solid items of a certain height, such as ointments, cosmetics, sauces, and small hardware.
Q: What are the advantages of flat-bed blister machines compared to roller-type machines?
A: Flat-bed machines offer easier mold changes, greater forming depth, and more uniform sealing pressure, making them suitable for small-batch, high-variety production.
Q: Does the machine require frequent maintenance?
A: The heating plate needs to be cleaned regularly, transmission components lubricated, and air line seals checked. System maintenance is generally required every 500 hours.
Q: Is it compatible with different packaging materials?
A: By replacing molds and adjusting temperature and pressure parameters, it can accommodate blister sheets and lid materials of varying materials, such as PVC, PET, and aluminum foil.
End of the article
Hansheng Automation is a professional supplier of precision parts for packaging machinery. We have been in the industry for over a decade and have extensive experience in processing parts, including custom gear processing, CNC machining, custom castings, and more. The packaging machinery we are familiar with includes tobacco packaging, processing equipment, granular food packaging, pharmaceutical packaging, and more. We hope this article can provide you with some help.