Self-sufficient and Strong
The Technology of Blow Moulding
- Diagram shows extrusion head and blow - mould.
The procedures employed in the processing techniques of blow moulding vary a great deal. rose plastic employs a blow moulding technology to manufacture thermoplastic packaging items. Containers, barrels, and packaging tubes can be manufactured with the blow moulding technique. Plastic granulates are melted in an extruder and pressed through a tube head. A pin tip called "Torpedo" gives the heated plastic material the cross section of a circular ring.
The extruder's continuous feed causes a plastic tube to emerge at the end of the tube head, which has a temperature of approx. 180° C. This tube is taken over by a split blow moulding tool. The closed blow moulding tool then swivels out and the pressed tube is transported to the blow tool's outer contour by pressed air, like a balloon. The previously thick-walled plastic tube is thus stretched to form extremely thin-walled containers. The plastic tube's heat is rapidly decreased by the water-cooled blow moulding form. Following this cooling process, the blow moulding tool opens and the moulded part can be removed. Depending on further requirements, the product can now be finished in a conveyor station. Waste from parts which do not require further handling are separated with sorting machines. The finished products can now be packed directly into suitable shipping containers. The procedure is repeated, depending on the number of items to be manufactured.
