DE10347006B4 - Hopper suction for foreign parts - Google Patents

Hopper suction for foreign parts Download PDF

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Publication number
DE10347006B4
DE10347006B4 DE10347006.9A DE10347006A DE10347006B4 DE 10347006 B4 DE10347006 B4 DE 10347006B4 DE 10347006 A DE10347006 A DE 10347006A DE 10347006 B4 DE10347006 B4 DE 10347006B4
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Germany
Prior art keywords
funnel
air flow
air
particles
essentially
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Expired - Fee Related
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DE10347006.9A
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German (de)
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DE10347006A1 (en
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Patentinhaber gleich
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Hergeth Hubert Zug Ch
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Individual
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Priority to DE10347006.9A priority Critical patent/DE10347006B4/en
Priority to CNB2004100120762A priority patent/CN100535213C/en
Priority to TR2004/02586A priority patent/TR200402586A2/en
Publication of DE10347006A1 publication Critical patent/DE10347006A1/en
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Publication of DE10347006B4 publication Critical patent/DE10347006B4/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
    • D01G31/003—Detection and removal of impurities

Abstract

System zum Ausschleusen und Abtransport von Fremdfaserpartikeln in einem Fasertransportluftstrom. Die Partikel werden in einen Trichter geblasen. Am Ausgang des Trichters übernimmt ein zweiter Luftstrom die ausgeschleusten Partikel.System for the discharge and removal of foreign fiber particles in a fiber transport air stream. The particles are blown into a funnel. At the exit of the funnel, a second air stream takes over the discharged particles.

Description

Seit Anfang der 80er Jahre des vorigen Jahrhunderts ist es bekannt, zum Ausschleusen von Fremdfasern die detektierten Fremdteile aus dem Transportkanal in einen annähernd luftdichten Raum zu blasen.It has been known since the early 80s of the last century to blow the detected foreign parts out of the transport channel into an approximately airtight space in order to discharge foreign fibers.

Bei dem ersten europäischen Fremdfaserdetektor OPTiSCAN wurden die Fasern in eine Auffangwanne geblasen, und seit 1994 war serienmäßig eine Öffnung für eine Absaugung vorhanden und wurde auch von den Kunden benutzt.With the first European foreign fiber detector, OPTiSCAN, the fibers were blown into a collecting basin, and since 1994 an opening for an extraction system had been available as standard and was also used by customers.

Der Fremdfaserreiniger der Fa. Trützschler wird seit 1999 in Kundeninstallationen permanent abgesaugt.The foreign fiber cleaner from Trützschler has been permanently vacuumed in customer installations since 1999.

Die EP 0 989 214 A1 beschreibt einen „annähernd luftdichten Raum“, in den die Fasern hineingeblasen werden und aus dem durch einen Ventilator zeitweise oder permanent die Luft und Fremdfasern gesaugt werden.The EP 0 989 214 A1 describes an "almost airtight space" into which the fibers are blown and from which the air and foreign fibers are temporarily or permanently sucked by a fan.

Dies ergibt folgendes Problem: ist der Ventilator klein, wird wie gewünscht nur eine kleine Luftmenge aus dem „annähernd luftdichten Raum“ und aus der Gutfasertransportluft herausgesaugt, so daß wenig gute Fasern in den Abfall gelangen.This results in the following problem: if the fan is small, only a small amount of air is sucked out of the “almost airtight space” and from the good fiber transport air, so that few good fibers end up in the waste.

Werden jedoch einmal kurzzeitig sehr viele Ausschleusungen getätigt, was in der Praxis vorkommt, verstopft der Ventilator und die Maschine ist in Störung. Wird ein großer Ventilator eingesetzt, werden zu viele Gutfasern aus dem Flockenstrom entnommen.However, if a very large number of discharges are carried out for a short time, which happens in practice, the fan clogs and the machine malfunctions. If a large fan is used, too many good fibers are removed from the flock flow.

Neben dem voranstehend erläuterten Stand der Technik ist aus der EP 0 987 355 A1 eine Vorrichtung zum Ausschleusen von faserartigen Fremdpartikeln bekannt. Um zu vermeiden, dass das geförderte Material im Normalbetrieb auch ohne Druckstoß durch die Ausstoßöffnung austreten kann, sind dabei Mittel zum Erzeugen eines Hilfsgasstroms vorgesehen. Dieser Hilfsgasstrom verläuft im Wesentlichen parallel zum Fördergasstrom und überstreicht die Ausstoßöffnung wenigstens teilweise. Der Hilfsgasstrom vermeidet in der Art eines Luftvorhangs das Herausfallen von Material aus der Ausstoßöffnung.In addition to the prior art explained above, from EP 0 987 355 A1 a device for discharging fibrous foreign particles is known. In order to avoid that the conveyed material can escape through the discharge opening during normal operation even without a pressure surge, means for generating an auxiliary gas flow are provided. This auxiliary gas flow runs essentially parallel to the conveying gas flow and at least partially sweeps over the discharge opening. The auxiliary gas stream prevents material from falling out of the discharge opening in the manner of an air curtain.

Aufgabe der Erfindung ist es, eine Konstruktion zu schaffen, die gelegentlich anfallende große Fasermassen sicher entfernt, ohne viele Gutfasern aus dem Flockenstrom zu saugen.The object of the invention is to create a construction which removes large masses of fibers from time to time safely without sucking many good fibers out of the flock flow.

Diese Aufgabe wird gelöst durch eine Vorrichtung nach Anspruch 1. Weiterbildungen der Vorrichtung sind Gegenstand der Unteransprüche.This object is achieved by a device according to claim 1. Further developments of the device are the subject of the subclaims.

Bei dieser Erfindung werden die Fremdfasern nicht in einen „annähernd luftleeren Raum“ geblasen, sondern in einen großen Trichter, der oben naturgemäß eine große Öffnung über die ganze Maschinenbreite hat und sehr breit ist. Am unteren Ende des Trichters ist die Öffnung etwas kleiner. Quer zu dieser Öffnung wird ein starker Luftstrom erzeugt, der die Fasern übernimmt. Die Luft, die den Luftstrom bildet, wird nicht wesentlich durch den Trichter gezogen, sondern aus der Umgebungsluft der Maschine gesaugt. Durch diese Maßnahme werden die guten Fasern nicht in den Trichter gezogen und gelegentlich anfallende große Fasermengen sicher übernommen und abgesaugt.With this invention, the foreign fibers are not blown into an "almost airless space", but into a large funnel which naturally has a large opening at the top over the entire width of the machine and is very wide. At the bottom of the funnel, the opening is slightly smaller. A strong air flow is generated across this opening, which takes over the fibers. The air that forms the air flow is not drawn significantly through the funnel, but is sucked out of the air surrounding the machine. As a result of this measure, the good fibers are not drawn into the funnel and large amounts of fibers that occur occasionally are safely taken over and sucked off.

In der folgenden Zeichnung wird die Erfindung dargestellt.The invention is illustrated in the following drawing.

In einem Fasertransportluftstrom in einem Kanal (1) befinden sich unerwünschte Partikel (8), die von einem optischen Erkennungssystem (2) erkannt werden. Ein Computer (3) aktiviert an einer stromabwärts gelegenen Stelle ein Ventil (4), das die Partikel (8) in einen Trichter (5) bläst. Am Ausgang des Trichters übernimmt ein Luftstrom die Partikel in einem Absaugkanal. Der Partikelluftstrom wird durch einen Ventilator (7) erzeugt.In a fiber transport air stream in a duct ( 1 ) there are unwanted particles ( 8th ) detected by an optical detection system ( 2 ) be recognized. A computer ( 3 ) activates a valve at a downstream point ( 4th ) that the particles ( 8th ) into a funnel ( 5 ) blows. At the exit of the funnel, an air stream takes over the particles in a suction channel. The particle air flow is generated by a fan ( 7th ) generated.

Claims (6)

System zum Ausschleusen von faserartigen Fremdpartikeln aus einem Transportluftstrom mittels optischer Erkennung und selektiven Ausblasens, dadurch gekennzeichnet, daß die auszuscheidenden Partikel in einen Trichter geblasen werden, bei dessen Ausgang sich eine Öffnung für einen Luftstrom befindet, der im wesentlichen nicht aus der Gutfasertransportluft besteht, sowie eine weitere Öffnung zur Abführung der Partikel mit diesem Luftstrom vorhanden ist.System for discharging fiber-like foreign particles from a transport air flow by means of optical detection and selective blowing, characterized in that the particles to be separated are blown into a funnel, at the exit of which there is an opening for an air flow which essentially does not consist of the good fiber transport air, and there is another opening for the removal of the particles with this air flow. System nach Anspruch 1) dadurch gekennzeichnet, daß die Luft für den Luftstrom am Ausgang des Trichters im wesentlichen aus der Umgebung des Systems stammt.System according to Claim 1 ) characterized in that the air for the air flow at the outlet of the funnel comes essentially from the environment of the system. System nach Anspruch 1) dadurch gekennzeichnet, daß die Luft für den Luftstrom am Ausgang als Trichter im wesentlichen aus einem zentralen Filter stammt.System according to Claim 1 ) characterized in that the air for the air flow at the outlet comes as a funnel essentially from a central filter. System nach Anspruch 1) dadurch gekennzeichnet, daß die Luft am Ausgang des Trichters im wesentlichen aus einem Kreislauf mit einer Partikelabscheidevorrichtung stammt.System according to Claim 1 ) characterized in that the air at the outlet of the funnel comes essentially from a circuit with a particle separation device. System nach mindestens einem der Ansprüche 1) - 4) dadurch gekennzeichnet, daß der Luftstrom durch einen Ventilator erzeugt wird und in seiner Stärke einstellbar ist.System according to at least one of the Claims 1 ) - 4) characterized in that the air flow is generated by a fan and its strength is adjustable. System nach mindestens einem der Ansprüche 1) - 5) dadurch gekennzeichnet, daß das Trichterende und die Querschnitte der Luftströmung an dem Trichterende 100 - 900 cm2 betragen.System according to at least one of the Claims 1 ) - 5) characterized in that the funnel end and the cross-sections of the air flow at the funnel end are 100 - 900 cm 2 .
DE10347006.9A 2003-10-07 2003-10-07 Hopper suction for foreign parts Expired - Fee Related DE10347006B4 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10347006.9A DE10347006B4 (en) 2003-10-07 2003-10-07 Hopper suction for foreign parts
CNB2004100120762A CN100535213C (en) 2003-10-07 2004-09-28 System for extracting and outputting heterofiber particles in fiber conveying airflow
TR2004/02586A TR200402586A2 (en) 2003-10-07 2004-10-07 Absorption of impurities from the funnel.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10347006.9A DE10347006B4 (en) 2003-10-07 2003-10-07 Hopper suction for foreign parts

Publications (2)

Publication Number Publication Date
DE10347006A1 DE10347006A1 (en) 2005-04-28
DE10347006B4 true DE10347006B4 (en) 2020-10-15

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DE10347006.9A Expired - Fee Related DE10347006B4 (en) 2003-10-07 2003-10-07 Hopper suction for foreign parts

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CN (1) CN100535213C (en)
DE (1) DE10347006B4 (en)
TR (1) TR200402586A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006047038A1 (en) * 2006-10-02 2008-04-03 Hergeth, Hubert Device for removing foreign particles from fiber flakes in transport airflow, comprises sluice channel, where false airflow supports diverted foreign particles, beginning from start of sluice channel, to end of sluice funnel
EP1927684A1 (en) 2006-11-29 2008-06-04 Jossi Holding AG Method and device for recognising and eliminating foreign matter from a fiber flow
CN110941024B (en) * 2019-12-11 2022-05-17 江西莱利电气有限公司 Device and method for detecting foreign matters in fan based on interference imaging
CZ2020294A3 (en) 2020-05-22 2021-05-12 Rieter Cz S.R.O. Method of regulating the flow or pressure in a waste transport device when preparing fibre and equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0987355A1 (en) * 1998-09-14 2000-03-22 Jossi Holding AG Apparatus and method for detection and removing foreign material
EP0989214A1 (en) * 1998-09-07 2000-03-29 Jossi Holding AG Method and apparatus for removing foreign substances from fiber material, especially from raw cotton
EP1841908B1 (en) * 2005-01-25 2010-08-11 Jossi Holding AG Method and device for removing foreign matters from a fibre material, in particular from raw cotton

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19516568A1 (en) * 1995-05-05 1996-11-07 Truetzschler Gmbh & Co Kg Fibre flocking cleaning station
EP1300493A1 (en) * 2001-10-05 2003-04-09 Jossi Holding AG Apparatus for the detection and removal of foreign matter from a carded web
CN2529879Y (en) * 2002-01-11 2003-01-08 解伟 Automatic separator for heterogeneous fibre

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0989214A1 (en) * 1998-09-07 2000-03-29 Jossi Holding AG Method and apparatus for removing foreign substances from fiber material, especially from raw cotton
EP0987355A1 (en) * 1998-09-14 2000-03-22 Jossi Holding AG Apparatus and method for detection and removing foreign material
EP1841908B1 (en) * 2005-01-25 2010-08-11 Jossi Holding AG Method and device for removing foreign matters from a fibre material, in particular from raw cotton

Also Published As

Publication number Publication date
TR200402586A2 (en) 2005-05-23
CN1619023A (en) 2005-05-25
DE10347006A1 (en) 2005-04-28
CN100535213C (en) 2009-09-02

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