EP0775767A1 - Verfahren zum selektiven Ausschleusen von Fremdteilen an einer Öffnungs- oder Abnahmewalze einer Textilmaschine - Google Patents

Verfahren zum selektiven Ausschleusen von Fremdteilen an einer Öffnungs- oder Abnahmewalze einer Textilmaschine Download PDF

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Publication number
EP0775767A1
EP0775767A1 EP96117801A EP96117801A EP0775767A1 EP 0775767 A1 EP0775767 A1 EP 0775767A1 EP 96117801 A EP96117801 A EP 96117801A EP 96117801 A EP96117801 A EP 96117801A EP 0775767 A1 EP0775767 A1 EP 0775767A1
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EP
European Patent Office
Prior art keywords
air
knife
roller
jam
guide plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96117801A
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German (de)
English (en)
French (fr)
Inventor
Hubert Dipl. Ing.-Dipl. Wirt. Ing. Hergeth
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Individual
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Individual
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Publication date
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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
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/14—Details of machines or apparatus
    • D01G9/20—Framework; Casings; Coverings; Grids
    • 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

Definitions

  • the application D-19518783.0 contains a system for the detection of foreign fibers on an opening machine.
  • the foreign parts are detected by sensors that control an opening roller parallel to the axis. If foreign parts are detected by the sensors and the evaluation electronics, a flap downstream of the opening machine is automatically activated and the foreign parts are removed with good fibers.
  • the disadvantage here is that relatively many good fibers are removed with the foreign parts.
  • An OPTiSCAN machine which is described in DE - 43 30 173, has found widespread use in the textile industry. In particular, because fibers are only removed at the points across the width at which foreign parts are detected.
  • the object of the invention is to provide a simple and very fast-reacting discharge device which also allows the foreign parts to be selectively separated out on an opening roller.
  • the separation takes place in zones arranged parallel to the axis of the roller. These zones correspond to detection areas which, seen in the flow of material, are upstream of these zones. If a foreign part that is transported by the opening roller on the circumference of the roller is detected in one of the detection zones, a signal for discharge is sent to the corresponding zone.
  • the corresponding discharge segment can be located a little later in the material passage on the same opening roller, or on an opening roller that takes over the fibers directly from the opening roller, or via one or more intermediate rollers, the fiber material takes over from the opening roller, where the fibers are checked.
  • the discharge takes place by creating an air jam in front of a knock-out knife or a separating edge. To explain the process, the air conditions on an opening roller are described in a simplified manner.
  • the opening roller is provided with driver tips on the circumference. These tips pull the fibers with them. With the opening roller, an air film rotates on the surface. One or more “knives” are attached at a short distance from the surface for mechanical removal of impurities. Large parts cannot pass between the knife and the roller surface and are excreted at the knife edge. Also small parts that are in the periphery of the air film rotating with the roller are separated out. In order to keep the air film and thus the fibers on the opening roller, however, it is necessary to guide the air film on the roller surface through guide plates. The distance between the baffle and the opening roller, at the point where the baffle ends before the next knife, determines how thick the air film around the roller is before the next knife.
  • Fig. 1 shows the operation of a cleaning machine for cotton.
  • Fiber material reaches an opening roller 2) via feed roller 1).
  • the material is guided past knives 3) through the opening roller.
  • baffles 4) are provided to keep the co-rotating air screen on the drum.
  • a device 5) serves for the optical detection of foreign parts in the fiber flakes.
  • the fibers are lifted from the clothing by an air flow 6) or separated from the roller by an air jam on the knock-off knife 7) and leave the cleaning machine through a suction funnel 8).
  • the parts which have been discharged enter a collecting space 9) and are conveyed out of the cleaning machine by a suction 10).
  • the following figures show explanations for generating an "air jam" in front of a separating knife as a detail from FIG. 1.
  • FIG. 2 shows the opening roller, a knife 3), a guide plate 4) and a knife 3) following the guide plate.
  • additional air is blown through nozzles 12) between the free space between the guide plate 4) and the knife 3).
  • the additional air volume cannot pass between the knife and the opening roller.
  • the air film revolving around the drum becomes disrupted and the vortices convey fibers and foreign parts away from the surface of the roller. Fibers and foreign parts are prevented by the knife 3) from continuing to circulate with the drum.
  • the nozzles extend approximately axially parallel to the surface of the roller.
  • Fig. 3 shows the formation of the air congestion through nozzles, which are arranged in front of the discharge knife 3).
  • FIG. 4 shows a nozzle arrangement in which the nozzles are arranged behind the separating knife 3) and blow between the knife and roller against the direction of rotation, in order to thus cause the air to jam in front of the knife edge.
  • the nozzles are controlled as in FIG. 2.
  • FIG. 5 shows a further form for generating an air jam in front of the separating knife 4).
  • the end of the guide plates 4) located in front of the separating knife 3) is mounted around a hinge 14) and is moved by an actuating element 16), for example a pneumatic cylinder or a magnet. If a foreign part is recognized “upstream”, the actuating element swivels the end of the guide plate away from the circumference of the opening roller.
  • the rotating air film follows the baffle and tries to fill the space between the pivoted baffle and the surface. The air film separates from the roller surface and jams in front of the knife. Fibers and foreign parts rise from the tip of the opening roller and can no longer be pulled through the narrow slot between the knife and roller surface. You will be eliminated.
  • Fig. 6 and Fig. 7 show the generation of an air jam by changing the geometry of the discharge knife 3).
  • the knives are usually in one flat angle to the surface of the roller. Lifting edges as shown in Fig. 1.7 are at an angle of 90 degrees to the roller surface.
  • the geometry of the discharge knife is changed to approx. 90 degrees. This is done in Fig. 6 by moving a block 16) parallel to the front of the knife. The block travels approximately flush to the tip of the knife and thus forms a roughly 90 degree tapping edge.
  • the block can be operated pneumatically or electrically and of course in sections.
  • FIG. 7 shows how the air jam can be caused by pivoting the knife 3).
  • the knife is pivoted from its normal flat angle around a pivot point at the knife tip, so that an angle of about 90 degrees to the roller surface is formed.
  • the swiveling can be effected by pneumatic cylinders.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
EP96117801A 1995-11-22 1996-11-07 Verfahren zum selektiven Ausschleusen von Fremdteilen an einer Öffnungs- oder Abnahmewalze einer Textilmaschine Withdrawn EP0775767A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19543526.5A DE19543526C5 (de) 1995-11-22 1995-11-22 Verfahren zum selektiven Ausschleusen von Fremdteilen an einer Öffnungs- oder Abnahmewalze einer Textilmaschine
DE19543526 1995-11-22

Publications (1)

Publication Number Publication Date
EP0775767A1 true EP0775767A1 (de) 1997-05-28

Family

ID=7778117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96117801A Withdrawn EP0775767A1 (de) 1995-11-22 1996-11-07 Verfahren zum selektiven Ausschleusen von Fremdteilen an einer Öffnungs- oder Abnahmewalze einer Textilmaschine

Country Status (3)

Country Link
EP (1) EP0775767A1 (forum.php)
DE (1) DE19543526C5 (forum.php)
IN (1) IN189988B (forum.php)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2769326A1 (fr) * 1997-10-03 1999-04-09 Hubert A Hergeth Procede pour l'elimination automatique d'elements etrangers qui adherent a des cylindres d'ouverture
WO2002068740A1 (de) * 2001-02-22 2002-09-06 Maschinenfabrik Rieter Ag Verfahren und vorrichtung an einer karde zum erkennen und ausscheiden von fremdstoffen in fasermaterial
WO2003069035A1 (de) * 2002-02-15 2003-08-21 Maschinenfabrik Rieter Ag Verfahren und vorrichtung an einer karde zum erkennen und ausscheiden von fremdstoffen in fasermaterial
CN113882050A (zh) * 2021-10-28 2022-01-04 浙江龙源纺织股份有限公司 纯棉优质精梳纱的生产方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19645844A1 (de) * 1996-11-07 1998-05-14 Hergeth Hubert Verfahren zum selektiven Ausblasen von Fremdfasern an einer Öffnungs- oder Abnahmewalze einer Textilmaschine
DE19853810B4 (de) * 1997-12-10 2014-02-13 Hubert Hergeth Vorrichtung zum selektiven Ausscheiden von Partikeln aus einem Textilfaserstrom
DE19806892A1 (de) * 1998-02-19 1999-08-26 Truetzschler Gmbh & Co Kg Vorrichtung in der Spinnereivorbereitung zum Abscheiden von Fremdstoffen an einer schnellaufenden Walze zum Öffnen von Fasermaterial, z. B. Baumwolle u. dgl.
IT1306941B1 (it) 1998-02-19 2001-10-11 Truetzschler & Co Dispositivo nella preparazione alla filatura,per la separazione dicorpi estranei su un cilindro in rapida rotazione per l'apertura di
DE19847237B4 (de) * 1998-02-19 2012-01-26 TRüTZSCHLER GMBH & CO. KG Vorrichtung in der Spinnereivorbereitung zum Abscheiden von Fremdstoffen an einer schnellaufenden Walze zum Öffnen von Fasermaterial, z. B. Baumwolle u. dgl.
EP1360351B2 (de) 2001-02-16 2015-12-23 Maschinenfabrik Rieter Ag Abscheidevorrichtung für fremdstoffe
CN102861755A (zh) * 2012-07-20 2013-01-09 贵州大自然科技有限公司 一种从制作棕床垫废料中回收棕丝的方法及装置
CN103757756B (zh) * 2014-01-26 2017-03-15 河北宇腾羊绒制品有限公司 一种具有甩粗功能的羊绒分梳装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110017A1 (de) 1982-10-26 1984-06-13 Maschinenfabrik Rieter Ag Messerrost
DE3928279A1 (de) * 1989-08-26 1991-02-28 Truetzschler & Co Verfahren und vorrichtung zum erkennen von stoerenden partikeln, insbesondere trashteilen, nissen, schalennissen, noppen u. dgl., in textilem fasergut, z. b. baumwolle, chemiefasern u. dgl.
EP0459565A1 (en) * 1990-05-29 1991-12-04 FRATELLI MARZOLI & C. S.p.A. Process and device for opening and cleaning fibrous material in an opener
JPH0525713A (ja) * 1991-05-17 1993-02-02 Murata Mach Ltd 混打綿工程の異物検出装置
DE4330173A1 (de) 1993-09-07 1995-03-09 Felix Sommer Vorrichtung zum Schälen von stangenförmigem Gemüse
DE4340165A1 (de) * 1993-11-25 1995-06-01 Hergeth Hubert A Verfahren zum schnellen Erkennen und Ausschleusen von andersfarbigen Fremdteilen in Faserverarbeitungslinien

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346335A1 (de) * 1983-12-22 1985-07-18 Hergeth Hollingsworth GmbH, 4408 Dülmen Verfahren und vorrichtung zur herstellung einer gleichmaessigen faservliesbildung in der vliesbildungszone zwischen tambour und faseruebernahmeorgan
DE3644535A1 (de) * 1986-12-24 1988-07-14 Truetzschler & Co Verfahren und vorrichtung zum erkennen von fremdkoerpern wie fremdfasern, bindfaeden, kunststoffbaendchen, draehten o. dgl. innerhalb von bzw. zwischen textilfaserflocken
DE4130147B4 (de) * 1990-09-17 2005-08-11 Trützschler GmbH & Co KG Vorrichtung an einer Karde, Reinigungsmaschine o. dgl. für Baumwollfasern

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110017A1 (de) 1982-10-26 1984-06-13 Maschinenfabrik Rieter Ag Messerrost
DE3928279A1 (de) * 1989-08-26 1991-02-28 Truetzschler & Co Verfahren und vorrichtung zum erkennen von stoerenden partikeln, insbesondere trashteilen, nissen, schalennissen, noppen u. dgl., in textilem fasergut, z. b. baumwolle, chemiefasern u. dgl.
EP0459565A1 (en) * 1990-05-29 1991-12-04 FRATELLI MARZOLI & C. S.p.A. Process and device for opening and cleaning fibrous material in an opener
JPH0525713A (ja) * 1991-05-17 1993-02-02 Murata Mach Ltd 混打綿工程の異物検出装置
DE4330173A1 (de) 1993-09-07 1995-03-09 Felix Sommer Vorrichtung zum Schälen von stangenförmigem Gemüse
DE4340165A1 (de) * 1993-11-25 1995-06-01 Hergeth Hubert A Verfahren zum schnellen Erkennen und Ausschleusen von andersfarbigen Fremdteilen in Faserverarbeitungslinien

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 17, no. 315 (C - 1071) 16 June 1993 (1993-06-16) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2769326A1 (fr) * 1997-10-03 1999-04-09 Hubert A Hergeth Procede pour l'elimination automatique d'elements etrangers qui adherent a des cylindres d'ouverture
DE19843587B4 (de) * 1997-10-03 2010-10-07 Hubert Hergeth Verfahren zum automatischen Beseitigen von anhaftenden Fremdteilen an Öffnungswalzen in Textilfaserverarbeitungsmaschinen
WO2002068740A1 (de) * 2001-02-22 2002-09-06 Maschinenfabrik Rieter Ag Verfahren und vorrichtung an einer karde zum erkennen und ausscheiden von fremdstoffen in fasermaterial
WO2003069035A1 (de) * 2002-02-15 2003-08-21 Maschinenfabrik Rieter Ag Verfahren und vorrichtung an einer karde zum erkennen und ausscheiden von fremdstoffen in fasermaterial
CN113882050A (zh) * 2021-10-28 2022-01-04 浙江龙源纺织股份有限公司 纯棉优质精梳纱的生产方法
CN113882050B (zh) * 2021-10-28 2022-10-18 浙江龙源纺织股份有限公司 纯棉优质精梳纱的生产方法

Also Published As

Publication number Publication date
IN189988B (forum.php) 2003-05-31
DE19543526A1 (de) 1997-05-28
DE19543526C5 (de) 2015-10-01
DE19543526B4 (de) 2006-01-12

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