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Press brake guarding monitors beam position
A
LVD (UK) product story
Edited by the Manufacturingtalk editorial team
Feb 13, 2001
A new concept in press brake guarding is being introduced to the UK by LVD using laser beam technology that enables bending times to be reduced and improves machine access and operation.
A totally new concept in press brake guarding is introduced to the UK by LVD using laser beam technology that enables bending times to be reduced, improves access and operation of the machine while providing a totally safe working environment.
In operation, the new guarding system monitors and controls itself by consistently measuring and analysing all movements of the press brake upper beam.
Should a potential obstruction be detected the system immediately signals an alert which automatically puts the press brake into 'safety' mode.
Lazer Safe, now available for all LVD multi-axis press brakes from LVD (UK) of Marlow provides a patented and CE approved alternative to the more traditional light curtain guarding.
It is very quick and simple to adjust and operate and is able to provide savings in machine operational times by as much as 25 per cent.
Based on 'fail to safe' operation, the system is built into the press brake using three parallel, low-power laser beams 2 mm deep which are set to permanently cover the working zone at a distance of 9 mm below the punch tool tip.
With the inclusion of an incremental encoder, the system is used to control the stopping distance, position of the upper beam and mute point.
Any interruption of the beam during the cycle of the machine immediately stops the beam within a maximum distance of 2 mm.
In operation, if one of the laser beams is interrupted, the upper beam stops automatically.
However, if the other two laser beams are still 'active' the machine cycle can be continued at approach speed by depressing the control pedal.
But, should two or more sensors be interrupted, movement of the upper beam can only be progressed at slow speed.
Higher productivity from the use of Lazer Safe as against traditional light curtain guards is confirmed, for example, in the production of complex box components requiring bends to be formed in both directions.
Here, the operators task is made easier with less movement required which contributes to much shorter cycle times of some 25 per cent.
-ends-.
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