WCA May 2011

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Technologynews
Wire & Cable ASIA – May/June 2011 44
A new wire cut-to-length straightener
system from Force Control Industries is
designed for high cycle wire cut off
applications.
The package includes a 2 plane wire
straightener, tool steel hardened feed
wheels, feed gears, separately actuated
cut cut off, wire guides, a Posidyne oil
shear clutch brake with pneumatic
control valve, accumulator, pressure
regulators, and gauges, motor and gear
reducer all mounted on a steel base
plate.
The system is capable of running 14
gauge wire at a velocity of 91.6"/sec
with +/- 0.13" accuracy, at 96cpm (24"
length, 50% dwell). Packages are also
available for larger size wire, making this
system ideal for cut to length
straightened wire for wire racks, cages,
crates, and even concrete reinforcing
wire.
The heart of the system is the oil shear
Posidyne clutch brake, which is
capable of very high cycle rates, long
maintenance-free life, and consistent
accuracy.
Oil shear technology is the reason that
Force Control brakes and clutch-brakes
are virtually maintenance-free – without
the need for adjustment or disc
replacement – and last up to 10 times
longer than standard dry friction brakes.
Oil shear technology is the function of a
boundary layer of transmission fluid in
shear between the friction disc and
drive plate. As the parts come together
the fluid under shear will transmit torque
between the two parts as well as absorb
heat.
This eliminates direct contact of the
friction discs and drive plates during
high speed slip. Heat from the friction
surface is dissipated as the fluid
circulates to the housing.
When combined with the closed loop
position control, the Force Control
wire feed system offers unparalleled
consistency and accuracy.
CLPC (closed loop positioning control)
assures consistent cut length accuracy
and simple length change over. The
CLPC continually adjusts to maintain
consistent cut length from start up to
end of the day. The control also allows
simple change of cut length for various
products, and has outputs to actuate
the cut off knife.
The CLPC constantly monitors the
stopping position and makes
adjustments if any “stopped position”
errors occur. Compensating for each
index ensures precise accuracy. This
self-compensating system controls for
changes in speed, dynamic load, air
pressure, friction in bearings, slides and
more.
A watchdog timer will stop index if not
made within the set time frame – this is
adjustable from 100 milliseconds to 1
minute to accommodate individual
requirements. The control will stop the
drive when it senses the system comes
to an unexpected stop – thus preventing
damage to the clutch or other system
components. The interrupt driven
microcontroller operates without scan
time problems.
Easy installation and operation is
achieved through menu-driven set-up
and on-the-fly electronic fine-tuning of
the start/stop position. Simple and
straightforward, the CLPC operates with
minimal programming – there are no
complex velocity profiles to develop.
Designed and developed as a complete
system, the CLPC is supplied with all
required components – there is no
need for external power supplies or
accessories.
Force Control Industries – USA
Fax: +1 513 868 2105
Email:
Website:
Wireless communication seems to be
the trend of the Internet network.
Despite Wi-Fi adapters/cards and USB
wireless dongles replacing and minifying
the wireless networking device, there
are still some practical problems like
signal receiving/transmitting range and
ability on wireless networking PCB
device without the auxiliary of an
external antenna.
Coaxial cable was originally used for
networking but is applied in fields that
require high conductivity and low
attenuation of signal such as antenna
cable, speaker audio cable and CATV
cable.
In WLAN applications, you can find the
presence of coaxial cable as the linkage
of antenna. It may also be found
embedded within AP routers, laptops,
cell phones and other electronics.
Weiyang Co Ltd is dedicated to coaxial
cable manufacturing, focusing on
flexible RF coaxial cable like RG
174/178/179/316, mini FEP Teflon coax
0.81/1.13/1.32/1.37/1.48mm, and low
loss WY 100/195/200. Stable quality,
flexible quantity, and short L/T are the
most competitive features.
Weiyang Co Ltd – Taiwan
Fax: +886 2 22693325
Email:
Website:
New straightener system for cut offs
m m The new straightener system from Force Control
The essential wire in ‘wireless’ applications