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Unit 140 - 14480 River Road, Richmond
British Columbia, Canada,
V6V 1L4
Telephone: +1 604 273 6080
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ROLL
POSITIONING:
Air Setworks Positioning System
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The
purpose of the system is to control the roll pressure (position) based
on the incoming board/cant thickness. The Pneumatic Positioning System
utilizes a Royal TR Series designed pneumatic actuator with
integrated Temposonics probe for position feedback.
This is an economical solution for
driving pneumatic cylinders moving rolls in closed loop
control. This positioning system is also used on
pickers and side rolls.
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The system is comprised of:
- Controller Board (one card per
roll axis) - usually all of the boards required for the
machine are mounted in an enclosure complete with power
supplies.
- Proportional Valves assembly
(two valves per axis). The pneumatic valves are proportional
control devices that are driven in tandem to maintain
constant control and keep rigidity of the object being
driven. The software settings allow the user to adjust
position and force parameters. The control of either force
or position can be switched on the fly giving seamless
transition between the two. This system helps to
reduce/prevent damage to the roll, material being processed
and the machine structure in typical roll applications.
- Temposonics Probe integrated
into the Royal Cylinder assembly, which is connected
to the customer's pressroll. Typical systems in the field
use 3 inch Bore cylinders moving rolls weighing up to 1000
lbs.
- Linear Displacement Optical Lasers
for measurement of incoming cants/boards.
- Interface to subroutine within
customer's PLC for generation of position command signals.
The loop is closed by use of the controller which receives
an 0 -10 VDC analog command signal from the PLC.
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