Device in the spinning mill preparation, ginnerei or the like for recognition of foreign matter in or between the fiber material, in particular cotton

摘要

In the case of a device in the spinning mill preparation, ginnerei or the like for recognition of foreign matter in or between the fiber material, in particular cotton, with a presentation channel, by means of at least two consecutively arranged detector means (sensor arrangements) for detecting foreign matter and can be acted upon with a pneumatic conveying means for the passage of the fiber material by the presentation channel, has a first detector device (sensor arrangement) at least one electronic camera with color sensor system and is a further detector device (sensor) is provided, which operates in the range from ultraviolet.In order to create an apparatus which in a constructively simple manner can be installed in a space-saving manner in a production line and the effective detection of white and / or transparent plastics, as well as of coloured foreign substances makes it possible, in the case of the further detector device with the aid of a source of ultraviolet light of the parts could be irradiated (incident light), are provided with the aid of a source for polarized light of the parts penetrable (transmitted light) and are the polarized light and as a result of the uv - radiation reflected light from the common to a further detector device can be accommodated.