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Video about weighing scales and 14 heads weighers
Multihead weigher include multihead weighing machines, multi head scale, weighing scales, high speed mixing weigher, and combination weigher are ubiquitous in industry for fast and accurate packaging of a wide variety of foods and vegetables, small hardware items and office supplies. These machines consist of a system of multiple hoppers that are filled with product which when discharged through a funnel fills a package to a desired weight.
We address the open problem for industry of how to determine the setpoint weights for each of the hoppers before starting up the machine, given a desired total package weight. An order statistic formulation based on a characterization of near-optimal solutions is presented. This is shown to be computationally intractable, and a faster heuristic that utilizes a lower bound approximation of the expected smallest order statistic is proposed instead. The solutions obtained with the proposed methods can result in substantial savings for users of multihead weighing machines. Alternatively, the analysis presented could be used by management to justify the acquisition of new machines of this type.
Below video are one of our Multihead weighers:
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