Maschinenfabrik Rieter Ag

Reto Kummli

Walter Schlepfer

Nikolaus Lagler

A method for operating a bale opening machine ( ) includes the step of defining a desired normal or operational take-off depth for the take-off device or extraction member ( ) to be applied to all of the bales ( ) of the bale lie. An actual take-off depth is computed for predetermined positions along the bale line as a function of the normal take-off depth and factors computed for the respective positions to take into account bale height differences and density differences between the bales. With respect to the bale height differences (4MAX&minus;aMIN), the take-off factors have a proportional value based on a bale height at the respective positions compared to a total bale height difference between the highest and lowest bales. A total bale height is recomputed prior to each pass of the take-off device and the actual take-off depth factors are set to a value of 1 if the computed total bale height difference is reduced to at least the magnitude of the normal take-off depth. The bale density factors are applied simultaneously with the height take-off factors and are computed based on a percentage of bale height and a perceived density characteristic of each bale.

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Reto Kummli