This is an excerpt from lesson 1 in paulson s extrusion blow molding technology training progam.
Blow moulding machine diagram.
In general there are three main types of blow molding.
Blow molding or moulding is a manufacturing process for forming and joining together hollow plastic parts.
Extrusion blow moulding diagram.
Extrusion blow molding is recognizable by the hollow tube that is extruded from the machine to create the parts.
The thermoplastic is a blow moulding materials which is contain the form of small pellets or granules.
Extrusion blow molding injection blow molding and injection stretch blow molding.
When at the blow station the parison within the mold is molded through utilizing air pressure while another parison is being extruded from the machine.
The feed from the extruder is given as an input into the blow molding machine.
A hollow mold then closes around the parison and cycles to the blow station.
It is also used for forming glass bottles or other hollow shapes.
The feed acts as the melted plastic and it is to be passed through the extruder head section and forming it into a parison.
The overview of all the parts of moulding machine is shown in the above diagram under segment a.
Blow molding machine is a one type fabrication of plastics it is used to manufacture of hollow object by inflating heated plastic tube to fill a mold or die and form for require shape.
This tube is referred to as a parison.