Product category:
Control systems for metalforming machines and equipment
News Release from: Bruderer UK | Subject: Power press control system - coil fed presses
Edited by the Manufacturingtalk Editorial
Team on 12 January 2007
Control improves power press efficiency
Especially suitable for any make of coil-fed power presses, control system protects press and its tooling from damage, reduces downtime and improves component quality.
A new control system has been introduced that protects any make of press and its tooling from damage, reduces production downtime, improves component quality and minimises raw material wastage Called Touch Control, it is manufactured by German sensor and instrument manufacturer, Unidor, and is available through sole UK agent, Bruderer UK, Luton
This article was originally published on Manufacturingtalk on 21 Aug 2008 at 8.00am (UK)
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Stamping ground for Bruderer high-speed presses
Since 2000, precision stampings specialist Batten and Allen has invested in seven new, high-speed presses from Bruderer UK, bringing the total on the Cirencester site to 26.
High speed press stamps small, complex parts
Bruderer has introduced its BSTA 200 200kN high-speed press for stamping out small and complex parts at speeds of up to 2000 strokes/min.
The control is easy to use, having no keys, buttons or switches - just a touch screen.
It is fed with signals from non-contact, oil-resistant, eddy current sensors strategically located around the working area of a stamping or forming press.
Any out-of-tolerance measurement stops production automatically.
Up to eight analogue channels are measured to a positional resolution of +/-1 micron, each channel being set up and monitored for upper and lower limits, and curve envelope.
Results are displayed numerically and graphically on the screen, either in absolute values or as deviations.
There is sufficient memory for storing the parameters of 300 die set-ups.
The exact positions of the punch, stripper plate and die may be monitored, enabling double sheets or slugs to be detected, so eliminating scrap and the risk of broken tooling.
Any out-of-parallel movement can also be identified, which if not due to slug build-up may indicate worn or broken stripper springs.
Bottom dead centre of the ram can be measured precisely and adjustments made at the control to ensure correct closure of the punch and die, extending the life of the tool.
This is crucial for accurate coining, which can be affected by variation in operating speed, temperature change or a blocked scrap chute.
Monitoring of press force is also possible.
The system is especially suitable for coil-fed presses, as one of the Touch Control's functions is precise optical measurement of the strip as it is fed through the tool.
In the case of high-speed presses, including those produced by Bruderer's Swiss parent company, the Unidor control supports operation at up to 1,500 strokes/min.
Finally, dynamic, static or multiple stroke monitoring including flank counting can be selected, for which purpose four digital PNP/NPN inputs are provided.
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