Weight variation method as well as slicing machine for its operation
AssigneeTvi Entwicklung & Produktion GmbH
InventorsThomas Voelkl, Martin Mayr
Life of this patent
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Abstract
In order to avoid underweight of slices when slicing a loaf into slices, thickness adjustments specified for slicing are adjusted depending on different pre-known parameters, from loaf to loaf and/or from slice to slice within one and the same loaf, preferably also across the boundary between two loaves optimized as early as possible so that existing weight conditions with regard to actual weight of the slices are maintained, in particular no more underweight slices are produced and/or the minimum average weight of the slices required for the entire batch is maintained.
Claims17
A method for at least achieving a reference weight of as many individual slices (S1 to Sn) as possible when cutting a batch of loaves into slices, by automatically varying thickness adjustments for the slices to be cut, wherein
- A) each loaf is arranged in a holding device for holding the loaf and advancing the loaf during slicing in a feed direction,
- B) weight or volume of a respective loaf is determined,
- C) in each case maximum number of such slices with reference weight which can be produced from this loaf is calculated therefrom,
- D) a thickness adjustment is calculated for all slices of this loaf, at which actual weight of each slice should mathematically correspond at least to the reference weight, and
- E) the actual weight of each separated slice of the loaves of the batch is determined,
- wherein
- F) before slicing a new loaf, in each case for those slice numbers for which, in a preceding loaf of a sequence of loaves, the uncorrected actual weight is increased by an uncorrected difference weight from the reference weight, for each slice number of the new loaf a slice correction weight is determined as a function of the uncorrected difference weights of these slice numbers in the sequence of preceding loaves,
- G) the thickness adjustments for the slice numbers of this new loaf are corrected with respect to the calculated thickness adjustment of this loaf by such slice-by-slice loaf correction thicknesses which correspond to the respective slice-by-slice loaf correction weight,
- H) the new loaf is cut into slices with the thickness adjustments thus corrected for the individual slice numbers.
A method for at least achieving a reference weight of as many individual slices as possible when slicing a batch of loaves into slices by automatically varying thickness adjustments for the slices to be cut
- wherein
- a) each loaf is arranged under a measuring pressure in a holding device for holding the loaf and advancing the loaf during slicing in a feed direction in particular in a circumferentially closed forming tube with a cross section of a cavity of the forming tube which is constant over an entire length,
- b) weight or volume of a respective loaf is determined in particular from a determined axial length as well as cross section of a part of the forming tube cavity which is under the measuring pressure
- c) number of such slices with reference weight which can be produced from this loaf in each case is calculated therefrom,
- d) predetermined thickness adjustments for the individual slices of this loaf are calculated, in which actual weight of each slice should correspond to the reference weight, and
- e) the actual weight of each separated slice of the loaves of the batch is determined,
- wherein
- before a new slice is cut, its predetermined thickness adjustment is corrected by a sum of a slice correction thicknesses determined for a group of preceding slices which is fixed in terms of number,
- wherein the slice correction thickness of a slice corresponds to the difference between the uncorrected actual weight of this slice to the reference weight divided by number of members of the group and changed algebraic sign,
- in particular, the difference is multiplied by a correction factor.
Dependencies are inferred from the claim text.