In general there are three main types of blow molding.
Blow moulding machine diagram.
A hollow mold then closes around the parison and cycles to the blow station.
The overview of all the parts of moulding machine is shown in the above diagram under segment a.
The feed from the extruder is given as an input into the blow molding machine.
This lesson is titled the process and the equipment.
Extrusion blow molding injection blow molding and injection stretch blow molding.
Extrusion blow molding is recognizable by the hollow tube that is extruded from the machine to create the parts.
Blow molding or moulding is a manufacturing process for forming and joining together hollow plastic parts.
Extrusion blow moulding diagram.
This is an excerpt from lesson 1 in paulson s extrusion blow molding technology training progam.
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.
This tube is referred to as a parison.
Blow molding is the process of inflating a hot hollow thermoplastic preform or parison inside a closed mold so its shape conforms to that of the mold cavit.
The feed acts as the melted plastic and it is to be passed through the extruder head section and forming it into a parison.
It is also used for forming glass bottles or other hollow shapes.