EoW November 2011

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EuroWire – November 2011 53
Fastener & spring production
“ ACID-FREEPROCESS FOR STEEL
ROD CLEANING & SURFACE
PREPARATION”
“New Way to Draw Steel Wire
in the 21st Century”
DCCD process features:
• Eliminates acid, borax and precoatings
• Zero energy consumption
• Direct drawing from bare rod with no
speed limitation, for H/C and L/C
• New Lubricant Viscosity Control
provides exceptionally adherent coating
• Adjustable lubricant residual
• Zero lubricant waste
• Recommended for severe drawing
applications (spring, rope, bead,
CO2 welding, PC strand, plating quality)
• H/C wire drawn at 18 m/s (3600 ft/min)
• Up to 8 times longer die life
• Exiting wire temp. 45°C (113°F)
• Greatly improved wire ductility
DECALUB
31, avenue de Condé
77500 CHELLES, FRANCE
Fax: +33 1 60 20 20 21
E-mail:
Website:
Rolling technology for production of spring wire
DEM’s ProfileWire Rolling line (PWR) for the production of spring wire consists of a payoff
for wire unloading, a pre-straightener, three motorised high-precision rolling stands,
a laser for dimensional deviation control and a take-up system such as coiler, spooler,
calander or facilities for cutting, straightening and unloading of straight bars.
The lines can cover any range of product size up to 500mm2, with speeds of up to
1,200m/min, and can be customised to specific requirements. The core of the system
is the latest generation DEM rolling stand, which allows demanding tolerances to be
achieved thanks to a new tool arrangement design, accurate profile measurement and
self-adjustment on closed loop control.
Line operation is controlled by user-friendly supervisor software. All production and set-
up parameters can be stored in the automation system and retrieved as required for
repeating production campaigns.
DEM provides advanced rolling solutions for the cold rolling industry, for ferrous and
non-ferrous metals. In addition to complete profile wire rolling lines, DEM can supply
complete rolling lines for flat wire; complete rolling lines for the production of concrete
reinforcing wire in coils at high speed; complete rolling lines for the production of
concrete reinforcing wire in bundles at high speed; rolling cassettes for wire rolling and
rope compacting; micro-cassettes to replace traditional dies in drawing lines; and tube
forming technology for flux cored wire (welding wire).
DEM Costruzioni Speciali Srl – Italy Fax : +39 0432 655484
Email: Website:
▲ Profile wire rolling line from DEM
Bacchetti sas, Italy, designs and
manufactures motor driven decoilers, for
both coils and reels, for the wire and cable
industry for the feeding of spring making
machines, straightening machines and
cable cutting machines.
TheHDTV1000decoiler has beendesigned
for wire in coils or bundles, with minimum
loading diameter of 300mm, and for
springs wire diameter from 0.6 to 5.5 mm.
The decoiler allows easy positioning of the
coil on the horizontal loading plate, which
has a 1,200mm external diameter.
The material to decoil goes from the coil to
a first diversion device, then to a moving
arm, and finally to an external tacho-
dynamo device. The rotation of the motor
of the decoiler can be controlled by both
the moving arm and the tacho-dynamo
device. All operating parameters of the
decoiler can be set on the control panel.
Maximum speed is 55rpm and the
maximum capacity is 1,000kg. The height
of the loading plate from ground is
870mm, and the overall dimensions are
2,000 x 1,250mm.
Thecompanyproduces a rangeof decoilers
with vertical axis of rotation, for wires from
0.2 to 16mm diameter, feed capacity from
30 to 2,500kg, plate diameters from 600 to
2,500mm, and maximum rotating speed
from 18 to 90rpm, on request.
Bacchetti sas – Italy
Fax: +39 049 773997
Email:
Website:
Motor driven decoiler