EMG strip guiding systems: (4): Strip Centring on welding machines and strip joiners
In this and in the following articles of this series, we summarize know-how on the use of EMG strip guiding systems and try to give you the necessary basics for the planning of the applicable components and for the design of the systems.
Previously published:
Strip Centring on welding machines and strip joiners
In the entry area of continuous strip processing lines the tail end and the head end of two strips are joined together, this is carried out using welding or strip joining machines, depending on the material and gauge of the strip and on the processing line design.
Modern welding or strip joining machines include systems for fully automatic centring upstream and downstream of the welding or strip joining machine. Mechanical centring devices are mainly used but there is a high risk of damaging the strip edge. The secure solution is the application of contactless strip position measurement systems of EMG Automation.
Functional principle
The illustration shows the space-saving EMG solution for the alignment of the passed strip end to the new strip head: 1 Strip width measurement (BREIMO), 2.1 - 2.3 Strip position measurement (EVK), 3 Control amplifier/electronic unit, 4 Welding or stitching machine, 5 Centring frame, 6 Hydraulic power unit.
The strip width for the passed strip and for the new strip is measured with the optical sensor system BREIMO [1] in front of the welding or stitching machine. In addition, the position of the head of the new strip is determined with the EVK [2.1] and additionally the angular position of the new strip is determined by taking into account the BREIMO values.
The centring of the passed strip in relation to the strip axis and angular position of the new strip is then carried out via a centring frame [5], which picks up and centres the strip with one or, in the case of thicker strips, with two clamping bars. The position and angular position of the passed strip is measured using two further EVKs [2.2] and [2.3].
The system can also be designed for bringing the strip head of the new strip in line with the strip tail end of the passed strip.
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In summary - Which EMG components do I need?
The essential components are:
? EVK – Strip edge positioning device or EVM - Strip centre measurement on optical basis
? EMG iCON? as intelligent digital controller,
? EMG servo valves (single-stage) as part of a hydraulic system.
And not to forget, of course, know-how in the design, construction and installation of the overall solution.
You will find all this at EMG!
What happens next?
Our sales and service staff, our?international sales organization or our product management?can offer you concrete advice on the design of your control system at any time.
I&c engineer - strategic manager
2 周I Need a system for used strip center/ edge detection
Project Engineer- Electrical
1 年Call me on 9075423945