EoW November 2011

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EuroWire – November 2011 54
Fastener & spring production
Fastener
production
Vitari, now part of the Eurolls Group of
companies, designs and manufactures
innovative machinery for the wire
industry.
Advantages of the company’s fastener
equipment include precision machining
of the bron-al guides for greater precision
of the finished part.
Smooth transfer cam movement allows
accurate positioning of the part, avoiding
vibration and possible die mis-feeds.
A finger clamping system allows for a
wide range of head diameters.
The company also states that it canprovide
greater forging pressure compared to
other competitive systems, and greater
flexibility, allowing the machine to
produce very demanding parts.
Length under the head is determined
by the trimming cam profile and is
theoretically unlimited. Pneumatic
trimming expulsion through the punch
can be effected in the last two operations.
A direct slow-motion motor allows for
very accurate transfer settings.
Forging pressure data relating to
production speed and the distance
between punch and die enables fine tool
optimisation.
The machines are fitted with household
name parts readily available on the
market. The continuous high-pressure
two zone lubrication system (60-80 bar)
ensures precise movement of machine
sequences.
Part shearing is direct, using a shear and
cam system with no intermediary parts.
The Vitari ST 150 can cut a F12mm steel
wire (60kg/mm2) at 9 ppm.
Vitari SpA – Italy
Fax: +39 035 528 999
Email:
Website:
New type of furnace
▲ ▲ Vitari’s ST 150
I.LE.S. Srl presents a new type of furnace
for stabilisation in the continuous produc-
tion of micro-springs, with wire diameters
up to 0.6mm.
The conveyor belt is made
in order to avoid tangling
the springs.
This furnace has been de-
signed to be linked direct-
ly to the winding, coiling
and bending machines,
therefore reducing the
production time of the
whole process.
The heat treatment takes place at the
same temperature and stay time for all the
springs, with the parts moving forward
continuously without collisions and
vibrations.
The product is therefore steady and re-
liable at the first stage, and moreover the
springs can rotate freely undertaking the
same position.
With good insulation and
ventilation inside, the
furnace uses only 3.3kW,
and is complete with a
conveyor belt of 70mm
width and a length of
550mm.
Loading height is easily
adjustable from 600 to
700mm through a simple
device.
I.LE.S. Srl – Italy
Fax: +39 037 375 0110
Email:
Website:
▲ ▲ For producing micro-springs up to
a diameter of 0.6mm
Everything under control
Since 1983 Eldes has been producing and installing real time control systems
applied to metal cold forming, cold headers and thread rolling machines. They are
based on the supervision of the force developed in the production process, by means of
piezoelectric sensors applied to the sensitive points of the structure. Today this type of
control is well proven. The first control systems entirely based on Italian technology were
developed by Eldes in 1982. Preserving continuity and always looking for innovation,
Eldes followed and often anticipated, the progress in cold forming technology,
developing the new generation of process monitoring to which Helios 2K and Titanus
2F belong.
The company’s aim is to give the operator a means to understand and oversee the
forming process, tailoring the controls and continuously improving the man-machine
interface. The technological know-how the company developed in cold forming allowed
it to create dedicated networks for production data collection and dimensional measures
acquisition systems. The shop floor data collection network enables complete control of
data production in the directional centre of any manufacturing company specialised in
cold forming.
Eldes snc di Bellotto Paolo & C – Italy Fax: +39 039 685 3222
Email: Website: