The blister forming is divided into drum type and flat-plate type. Flat-plate type of blister forming device generally performs better than the drum type. Heat-sealing is also divided into drum type and a flat-plate type. Regarding the heat-sealing effect, the flat-plate type is better than drum type, while drum type has advantages in speed and reliability. The above process can be completed by manual operation, semi-automatic operation or automatic operation.
For large production volume of blister packaging, relatively fixed variety, and the demand for safe and sanitary, it is advisable to use automatic packaging line for production.
In addition, automatic blister packaging machine can be connected with automatic printing machine, manual inserting machine, boxing machine and others for a fully automated blister packaging line, to save labor and time. We will introduce the Working Principle of the automatic blister machine with an example of aluminum-plastic packaging.
PVC plastic and aluminum foil need to be put 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. Owing to the thermoplasticity of the plastic film, the PVC can be shaped as request when it is transferred to the forming mold.
The temperature of the heating element is much higher than that. The heating method is divided into radiant heating and conduction heating. The conversion rate of radiant heating is higher. Most of the thermoplastic packaging can absorb the energy of 3. For conductive heating, also known as contact heating, the PVC will directly contact the heating source, the heating roller or the heating plate. The PVC needs to be molded into a required shape after heated.
The forming process is the most important part of blister packaging, and usually there are several forming methods as followings:. Enumerated below are the benefits of using blister packaging. Since packaging is often not a part of the production process, manufacturing plants often employ third-party services dedicated to the packaging process.
Contract packaging is a service provided by packaging companies that usually comprises the supply of labor and equipment for product packaging. Contract packaging companies invest in sophisticated equipment such as blister packaging machines that are accredited by regulating bodies.
This allows the manufacturer to focus its manpower and business process solely on production while getting the benefits of a specialized packaging system. A contract packaging setup also enables more investment into quality testing of packaging raw materials that are impractical for manufacturing plants. In broader scopes, the packaging company is responsible for producing graphic materials and product manuals, controlling inventory, warehousing, and distribution.
The packaging process starts by designing the packaging format. The manufacturer fabricates a negative die according to the shape of the product. To prepare the negative die, a metal stock is milled with an array of cavities using a CNC machine.
The die is then installed into the forming machine. The forming process can either be thermoforming or cold forming. Plastic films such as PVC are processed by thermoforming, while laminated aluminum forming films employ cold forming. For thermoforming machines, a preheating process is done at temperatures below the plastic's melting point. As the film moves through the machine, it is formed to shape by air pressure thermoforming or by pressing a positive die cold forming.
Meanwhile, prior to packaging, the products are visually inspected in a staging area. For consumer goods, the products are placed manually or automatically into the pocket. For products with smaller profiles but large volumes such as medicine tablets, a packaging machine with hopper feeding is used. The products are loaded into the hopper and then carefully fed into the pockets of the blister sheets.
Brushes and paddles help disperse and arrange the product through the whole blister card. The product then moves into the inspection station.
Here, an inspector or visual sensors check any damaged or broken items and marks them for rejection at the end of the packaging line. After inspection, the sheets are transferred into the sealing station.
Before sealing, a cylinder with embossed texts or graphics prints on one side of the lidding before being fed into the machine. The cylinder picks up the ink and then presses it onto the lidding film. The filled and sealed web is then fed by an indexing mechanism into the pack punch unit where the packs are separated from the web. The web trim is sheared off to allow collection. The blister pack may either be collected in bins or may be conveyed over a belt for further handling.
The machine could be linked to a cartoner. Operation control by PC Windows Version. Wide range of all optional for pharmaceutical blistering available. Indexing control by servo motor. Handles all kinds of thermo and cold forming materials, including PP film, and lidding on the markets. BM HA Blister Machine-Toothbrush Application Best toothbrush blister packaging for in-line with upstream tufting machine Specially designed for in-line with upstream tufting machine.
It has no position tolerance of feeding point for accurate feeding of toothbrush without miss-positioning. It has minimum wastage by double cycle punching. N6 Blister Machine-Toothbrush Application The best solution for toothbrush packaging, especially for in-line with tufting machine Good for small batch blister packaging of toothbrushes and other similar articles, i.
Operation speed is designed to fit with in-line toothbrush tufting machine. Easy and fast change over of mold set. Less scrap.
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