Page 24 - ITA Journal 3-2018

Technical Papers
FASPAR Spa.
An innovative system for high-capacity cut-to-length lines
At a stainless steel service centre in Italy, Faspar S.p.A. has installed a cut-to-length line with rotary shear cutter, the latest of its kind for Faspar.
The new Faspar line
This new line is the result of a genuine co-design between Faspar and the nal Customer, a service centre specialised in stainless steel and noble materials in general. It is designed to process Series 300 or 400 stainless steel coils or other noble materials with resistance up to 700 N/ mm2, with a maximum width of 1,500 mm and weight up to 20 t, with sheet thickness from 0.4 to 3.0 mm, running at a maximum speed of 60 m/minute. A levelling machine that guarantees perfect planarity and de-tensioning of materials. A special workstation is dedicated to covering the strip with a protective lm (sheets of special paper or plastic lm). A rotary shear cutter continuously cuts the material with the possi-
loading coil car
decoiler
paper collection unit (for the orderly winding of the protec- tive paper exiting the coil)
feeding and levelling unit with a roller module for haul- off, tilting feed table, six-fold levelling machine with all rollers motorised. The levelling machine is equipped with sup- porting intermediate and coun- ter-rollers, which are installed underneath. The up and down movements of the pressure counter-rollers are independ- ent: each roller is separately powered, while the stroke of the pressure units can be viewed by way of centesimal electronic indicators installed on the control desk
bility to correct “oblique” angles.
The line includes a quality control
box, which expels any defective
sheets and two stacker boxes that
prepare the “pile” of sheets on the
pallet. The two stacker boxes can
also operate as a single worksta-
tion, making it possible to stack
sheets with maximum dimensions cutting unit with pinch-roll
1,500 x 6,000 mm.
The system is lled with not-so- hidden “gems”: in addition to the oblique angle correction system, it also includes a cleaning system for the levelling rollers (Faspar patent). This ensures the perfect and continuous cleanliness of the rollers themselves, a critical factor ensuring perfect sheet metal n- ishes and superior quality.
Figure 2 shows a glimpse of the line, which as mentioned, is the fruit of a close collaboration between Faspar (manufacturer) and the new stainless steel service center (user). The system is essen- tially composed of the following:
system for application of paper or PVC
electronically controlled rotary shear cutter, with maximum cutting capacity 3.0 x 1,500 mm on steel with resistance 700 N/mm2, double-edged blades, with rapid and automatic regu- lation of blade clearance
“transport” and quality control unit with unloading belt and transport to stacker
stacking station with two sep- arate boxes that can be used either together or separately. The workstation can stack ribbon coils with dimensions from 250 x 250 up until sheets
ITAtube Journal No3/October 2018
24