Method and device for detection of rotated segments conveyed in a machine used in tobacco industry and a machine for producing multisegment rods comprising such a device
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United States of America Patent
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Aug 24, 2017
app pub date -
Sep 21, 2015
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Oct 17, 2014
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Abstract
A method of detection of rotated segments in a non-wrapped string of segments conveyed one after another in a machine used in tobacco industry, the method comprising using a source of radiation for illuminating the segments and a receiver of the radiation reflected by the segments, the method further comprising generating a signal of an error by means of a controlling unit in case of detection of a rotated segment. The conveyed string of segments is illuminated by a laser beam so that on each segment its light profile is formed, an image of said light profile being registered by means of the radiation receiver, and in that the light profile formed on each segment is compared with a defined reference profile by means of an analyzing unit and the signal of an error is generated in each case where a difference between the registered light profile and said reference profile is detected. A device for implementing the method of the invention and a machine comprising such a device.
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