MF 64
Author: Donato Gavino Murru [email protected]
Pag.
15
a
179
Overview
Generalities about the machine
– description – performances
This thermoforming line is designed to obtain products starting from a thermoplastic roll. This
material is in a film state, dragged through the process by a special high strength pin chain system.
The film advance is done by automatic cycle fully adjustable in length and time established by the
operator, according to its needs. The final product is obtaining through series of automatic steps
realize by different groups of components in the automatic process.
The first phase of the thermoforming p
rocess is called: “heating”. The plastic sheet
is heated by infrared resistors, at a temperature according to the sheet morphology
setup by the operator.
The second phase is called: “forming”. The material is transported inside the
molding tables. Tables are closing and the hot plastic is formed by the shape of the
mold.
Third phase consist of “punching” the formed sheet with a drilling station.
Fourth
phase consist of “cutting” the formed sheet with a trim press.
Fif
th phase is to “stack” the product that had been cut previously by the press. They
are stacked, at a preset setting choose by the operator, and extracted from the
machine, ready for being packed manually in boxes.
