The Basics of a Blow Molding Machine

Update: 2022/12/09
Abstract:

During the 19th century, a glassblowing process inspire […]

During the 19th century, a glassblowing process inspired the development of a blow molding machine. The goal was to maintain the shape of the plastic during the process. In the early 1850s, Samuel Armstrong patented the process. It was later developed by Enoch Ferngren and William Kopitke.Blow molding machines are used in manufacturing plastic bottles, containers and other hollow plastic products. These products are used to store liquids and other fluids. They are also used in vehicles across the world.The first step in the blow molding process involves feeding plastic pellets into an extruder hopper. Plastic pellets are then conveyed through a vacuum pump to a raw material silo.

Next, the material is melted. The melted plastic is then injected through nozzles into a heated cavity. The molten plastic is then cooled, and the mold is unscrambled. The mold is shaped to fit the final product.Depending on the type of product, there are several varieties of blow molding machines. Among these are injection blow molding machines and extrusion blow molding machines.There are two types of extrusion blow molding machines, which are the Archimedean screw and accumulator method. In the accumulator method, a rod pushes melted plastic into a parison.

The ram piston then forces melted plastic through the moving die, creating a parison that conforms to the final product's shape. The melted plastic is then collected in an accumulator. The accumulator can be a vacuum pump or a blow molding machine.

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