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Centraliser |
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Re-alignment on the basis of centre of gravity To ensure even portion weights when
radialy cutting products, it is essential that the centre of gravity of an
object is aligned with the cutting axis. The centraliser locates an object’s
centre of gravity and can then align it as appropriate. It is designed to improve cutting
accuracy to existing radial portioning units. Key to the centraliser are ‘omni wheels’
which look like normal wheels but have freely rotating barrels mounted around
their edges so that they will skid sideways. By using three such wheels in a triangle
and calculating their movement using a mathematical procedure called
holonomic motion control, a product resting on the three can be moved or
rotated in any direction as the wheels absorb each others sideways motion. By mounting one
wheel on a load cell and driving all wheels to spin the product, any error in
positioning will appear as a ‘wobble’ as the wheel with the load cell takes
an increasing share of the weight as the centre of gravity moves closer to
it.
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