Are you a fully-equipped pharmaceutical,food processing plant,or stationary factory? Are you looking for an equipment sealing your products in individual containers or proventing your products from water-proof,moisture-proof,dust-proof,rust-proof,so that to extend their shelf time.One of the equipments that you may consider adding to your ammunition is the blister packaging machine.
For different blister packaging,the used material,cavity,box as well as shape may be various as the different products to be packed.But also, for your various products,there may be various substrates,materials and heat-sealing method applied. Blister packaging eliminates the need for additional cartons, thereby reducing the cost of packaging. Blister packagings are sight packs (or retail packs).
What is Blister Packaging Machine?
A blister packaging machine is a special machine that is used as unit-dose packaging for tablets,capsules,etc.It has a component of a bubble pack that seals products in a cavity, usually with a paper backing or aluminum or film seal. These blister packs can be used for just about any product, but are common packages for small consumer goods, foods and pharmaceuticals.
Most blister packaging machines use heat and pressure via a die to form the cavity or pocket from a roll or sheet of plastic. But, in recent years, improvements in cold forming—specifically allowing steeper depth/angles during forming, which minimizes the amount of material used for each cavity—have helped this technology increase market share.
Types of Blister Packaging Machine
Depend on the operation process,blister packaging machine can be classified into:
.Roll type blister packaging machine
You will be easy to operate the blister packaging machine. The forming film of the blister packaging machine is heated and softened by the heating device. The blister is then sucked by the negative vacuum pressure on the roller forming molding roller, and therefore the filling device fills the packaged object into the blister, then passes through the roller type.
Then the heat sealing device seals the single-sided adhesive-coated cover film on the surface of the blister material at an appropriate temperature and pressure and seals the packaged object within the blister.
.Flat type blister packaging machine
Flat type blister packaging machine works as when the formed film is heated and softened by the flat heating device. The softened film is blown into a blister by using compressed gas within the flat forming device, and therefore the filling device fills the package into the blister.
Then, it’s sent to the flat sealing device, and therefore the cover film is sealed with the formed film under suitable temperature and pressure, then the batch number is printed, and thus the broken line is pressed by the typing imprinting device. Finally, the punching device is punched into a predetermined size product section.
.Roll plate blister packaging machine
The roller plate type blister packaging machine is developed with the foundation of a roller type and flat type blister packaging machine. That is, a flat type molding device is employed for blow molding (positive pressure forming), and a roll type sealing device is sealed, and its blister packaging machine working principle is essentially the same.
What Is The Working Principle of Blister Packaging Machine?
The simple working principle of blister packaging machine can be divided into:
You have to put the PVC plastic and aluminum foil on the foil coiler, and there will be difference in the operation and the way of placing the film. Generally, driven by the motor, the bearing rotates and take the clamped film to the forming station by guiding roller and positioning roller.
The forming process is the most important part of blister packaging,it is also known as negative pressure forming, there are vent holes at the bottom of the mold, and the softened PVC is sucked into the mold by vacuuming for forming. Usually the mold are rollers, and the finished blister is with small size, a simple shape, an uneven overall stretch, and a thin top.
After the PVC is formed, it is transported to the filling station by a driving device. The filling is controlled by the blister packaging machine with a constant speed, and accuracy. The feeding speed shall be constant to the forming speed.
After filling the product, you will have to check manually or by sensor, and adjust manually if necessary. However, it is more common to use a rotating soft brush to sweep while the PVC is stepping, – extra pills will be pushed to the bottom, and then the soft brush pushes the pills to fill the empty blisteres.
After filling the product, your products need to be sealed by the substrate. In the case of packaging Pill, aluminum foil is generally used as the material, and there are generally two kinds of heat-sealing:
Rolling type: PVC tape and aluminum foil are heat-sealed by the mutually parallel heat-sealing roller and the anilox roller under the action of a certain temperature and pressure.
Plate pressing type: use the heated sealing plate and the lower template to press the blister and the substrate for sealing. With this method, the blister packaging is flatter and the pressure required for sealing is bigger.
After all above steps ,you will have your blister packed products transported to the trimming station for trimming or cutting the corners that are usually shaped to be round.And then a fragile intermittent short mark is punched on a blister for manual splitting.
The last step is, necessary information such as the date of manufacture, lot number, etc. will have to be printed on the blister through the printer, and finally the unqualified blister is removed.
How Will You Benefit From Blister Packaging Machine?
Before purchasing the most suitable blister packaging machine,you may want to know how will you benefit,below is a list:
Guarantees product integrity
You can use blister packaging for very sensitive applications that include pharmaceutical goos,foodstuff,electronic components or stationary,etc.With the blister packaging machine,you will have your products air-tight sealed,and they won’t be exposed to moisture or air.
That is,through the blister packaging machine,your end product quality will be retained.
It will be easy for you to track your drug dosage since your pills and tablets packed by the blister packaging machine are in their designated packages,that the dosage accuracy has been well maintained.
Through blister packaging machine,your products will not be easy to be interfered by any external physical forces.That is this way has well preserves the integrity of your pills and capsules.
Blister packaging is cheaper than plastic packaging,using the blister packaging machine will save you’re a large sum of money, especially when you want to cut down on the cost of packing capsules and pills.
You may know that the labeling is inclued in the blister packaging machine process.That is ,through which,your products will be easy identified by their names among other information.