US 5,791,489 AGranted

Apparatus for separating foreign bodies from a fiber tuft stream

AssigneeTrutzschler GmbH & Co. KG

InventorFerdinand Leifeld

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Abstract

An apparatus for detecting foreign substances in a fiber tuft stream and for separating the foreign substances therefrom, includes a conduit guiding the fiber tuft stream therethrough in a conveying direction; a metal detector situated at a first location of the conduit for detecting a metal substance in flight and for emitting signals representing the metal substance; a first separating device situated at a second location of the conduit downstream of the first location as viewed in the conveying direction; a first control device connected to the metal detector and the first separating device for operating the first separating device in response to a signal emitted by the metal detector for removing the detected metal substance; an optical sensor situated at a third location of the conduit for detecting a non-metal substance in flight and for emitting signals representing the non-metal substance; a second separating device situated at a fourth location of the conduit; a second control device connected to the optical sensor and the second separating device for operating the second separating device in response to a signal emitted by the optical sensor for removing the detected non-metal substance.

Claims17

Dependent claims

An apparatus for detecting foreign substances in a fiber tuft stream and for separating the foreign substances therefrom, comprising

(a) a conduit guiding the fiber tuft stream therethrough in a conveying direction;
(b) metal detector means situated at a first location of said conduit for detecting a metal substance in flight and for emitting signals representing said metal substance;
(c) first separating means situated at a second location of said conduit downstream of said first location as viewed in the conveying direction;
(d) first control means connected to said metal detector means and said first separating means for operating said first separating means in response to a signal emitted by said metal detector means for removing the detected metal substance;
(e) optical sensor means situated at a third location of said conduit for detecting a non-metal substance in flight and for emitting signals representing said non-metal substance;
(f) second separating means situated at a fourth location of said conduit downstream of said third location as viewed in the conveying direction;
and
(g) second control means connected to said optical sensor means and said second separating means for operating said second separating means in response to a signal emitted by said optical sensor means for removing the detected non-metal substance.

5 more elements

Dependencies are inferred from the claim text.