Blister packaging process knowledge of blister packaging machine
The blister packaging process requires a forming die, a blister cutting die and a heat sealing tool. The process steps are: ①The plastic film sheet with a thickness of 0.127～0.38mm is heated and vacuumed in an epoxy resin mold or an internally cooled aluminum mold to form a blister cavity; ②After die cutting , Put it into the heat-sealing appliance; ③put the product into the cavity of the blister; ④put the cardboard coated with the heat-sealing flux-type coating face down into the heat-sealing appliance, and use the positioning pin to position it to ensure that the cardboard and the blister The cover is glued accurately; ⑤Move the heat-sealing tool to the heat-sealing area, and heat it under pressure (120～204℃) for 1.5～3s, and the film and cardboard are bonded together.
Heating sealing methods are divided into direct method and indirect method.
The direct heating sealing method is to directly heat the edge of the blister with the anti-sticking material Teflon (polytetrafluoroethylene), which can prevent the film from sticking to the heating tool.
The indirect heat sealing method uses a fluted upper heat mold, and only heats and presses the edge area on the back of the cardboard that coincides with the blister.
Manual and semi-automatic sealing machines include multi-station rotary sealing machines, reciprocating sealing machines and indexable sealing machines.
The automatic sealing machine is multi-station rotary or belt type, and can be equipped with a series of forming die cutting-blister supply-paper board supply device. The production speed ranges from 10 pieces/min for small sealing machines to 150 pieces/min for large automatic sealing machines. The universal vacuum packaging machine can be used for both blister packaging and skin packaging. According to specific requirements, the machine is equipped with a blower (to raise the blister from the mold), a water cooling mold (when fast), a film auxiliary device (to prevent the higher blister from collapsing), and a pressure-assisted mold plug (for deep molding) ). After the blister is formed, a roller and punch die cutting machine is used to cut the entire blister into pieces.
The figure shows the schematic diagram of the blister forming, filling and sealing machine:
Blister packaging process:
1. Plastic film roll
2. Reel traction and brake chuck
3. Blister blow molding device
4. Automatic feeding and filling device
5. Preheating device
6. Infrared scanner
7. Aluminum foil roll
8. Traction heat sealing roller
9. Tearing and punching device
10. Imprinting device
11. Traction roller
12. Bubble board punching device
14, 15 tension roller
Recommendations for blister packaging machine
Hualian DPH-380D High Speed Blister Packaging Machine
DPH-380D high-speed blister packaging machine is suitable for automatic high-speed blister packaging of regular medicines such as capsules and tablets and chewing gum, lozenges, chocolate beans and other sweets. It adopts flat positive pressure molding, and the blister is firm and uniform. Sealing, reliable sealing, equipped with batch numbering and indentation devices, can be designed for blanking without waste, with high automation, high productivity, and superior performance of greatly saving packaging materials.
View DPH-380D High Speed Blister Packaging Machine