Page 11 - New Products 2012

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High-speed T-gantry: 30% faster than
conventional handling systems.
An absolutely straight cut: in this application, the sheet cutting process is
completely synchronised with the speed of the sheet.
A glimpse into the secret life of an ultrasonic welding machine.
Left: the high-speed T-gantry.
Thinking ahead:
from sheet welding to
sheet cutting
Once they have been welded, the
sheets often need to be cut*.
For simple applications, the
cutting on a running conveyor
can often be performed using
servopneumatic valves VPWP,
while highly precise versions
require synchronised electric
axes. If necessary, a mix of
technologies can be used. For
high-quality results and a right-
angle cut, the electric multi-axis
controller CMXX on the modular
electrical terminal CPX controls
the axial movements of the
electric linear axes EGC and
DGCI.
The cutting frequency and the
speed of the blade are adjusted
exactly to the operating times of
the conveyor upon which the
sheets are being transported.
This is calculated by the PLC in
the control system. On request,
the system can also include the
pressure monitoring module
CPX-4AE-P and the safety valve
MS6-SV, which acts as a safety
circuit.
*
Please note:
The following applications are not part
of Widmann Maschinen GmbH's system.
Reliable sheet gripping
and leak testing
with vacuum technology
The high speeds at which the
sheets are moved into the
ultrasonic welder and back out
again are only possible when the
sheets are reliably gripped at
the front end using vacuum
technology. This called for a
combination of the vacuum
generator VN and a suction cup
ESG, e.g. with antistatic
properties. This makes it easy
to achieve much shorter cycle
times thanks to the very fast
evacuation times and
accelerated gripping and placing
of plastic sheets. The ejection
pulse and the electric solenoid
valve for the ON/OFF control of
the vacuum are fully integrated.
The necessary leak test, e.g. at
the joint between the bag and
the end piece, is also carried out
using vacuum sensors, which
evaluate an analogue signal.
Potential leaks are spotted due
to the corresponding pressure
drop. A valve terminal CPX/MPA
with a pressure sensor module is
used for the sensor activation
and evaluation.
­
30% faster: the high-speed T-gantry
The high-speed T-gantry is ushering in a new age of handling technology,
offering the dynamic response of a linear motor handling system at the cost
of a toothed belt handling solution. This makes them 30% faster than
conventional handling units.
The T-gantry can be scaled to any stroke, is highly compact and boasts
impressive acceleration in the Z-direction. It offers strokes in the Y-direction
of 1,000 mm and strokes in the Z-direction of 300 mm, with a positioning
accuracy of 0.1 mm.
You can download more information on
advanced handling systems
from
Festo here:
www.festo.co.uk
• Support portal
• Keyword: advanced handling systems
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