EP0108229B1 - Machine de nettoyage pour du matériel en fibres - Google Patents

Machine de nettoyage pour du matériel en fibres Download PDF

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Publication number
EP0108229B1
EP0108229B1 EP83109385A EP83109385A EP0108229B1 EP 0108229 B1 EP0108229 B1 EP 0108229B1 EP 83109385 A EP83109385 A EP 83109385A EP 83109385 A EP83109385 A EP 83109385A EP 0108229 B1 EP0108229 B1 EP 0108229B1
Authority
EP
European Patent Office
Prior art keywords
roller
nose
opening
envelope
cleaning machine
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.)
Expired
Application number
EP83109385A
Other languages
German (de)
English (en)
Other versions
EP0108229A1 (fr
Inventor
Urs Staehli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0108229A1 publication Critical patent/EP0108229A1/fr
Application granted granted Critical
Publication of EP0108229B1 publication Critical patent/EP0108229B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/36—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls with means for taking away impurities
    • 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
    • D01G9/18—Arrangements for discharging fibres

Definitions

  • the present invention relates to a cleaning machine for fiber material, which has an opening roller which is rotatable about an axis and provided with a clothing and is arranged around it in the specified sequence, a feed device for the fiber material, a grate formed from knives, a fiber material delivery point and a shielding body and these parts arranged around the roller extend in the direction of the axis of rotation of the roller over the latter, the shielding body having a nose and in which shielding body a shielding wall of the shielding body extends away from the nose in the direction of rotation of the roller over part of the die Extends the roll cover containing clothing.
  • German Patent Application No. 1 010 878 or from German Patent No. 16 85 571 it is known, for example, to set this in rapid rotation by means of an opening roller for cleaning fibrous material, as a result of which the centrifugal forces generated thereby remove the impurities, such as, for . B. granules and dust particles, fly away from the fiber material. These impurities are deflected away by a knife grate extending over part of the outer surface of the opening roller.
  • a shielding body with a shielding plate is used, which extends at a small, constant distance from the clothing over part of the lateral surface of the opening roller.
  • a nose is provided at the front end of the deflecting body or the shielding plate in relation to the direction of rotation of the opening roller. The fiber material freed from the clothing again by the shielding body reaches a tangentially leading suction channel, through which it is conveyed for further processing.
  • a carding arrangement is known from US Pat. No. 3,115,683, in which an opening roller provided with a clothing combs fiber material out of the feed plate of the carding machine and transfers it to a reel, also provided with a clothing, at a transfer point.
  • the transfer of the fiber material between the opening roller and the reel takes place here in a purely mechanical way thanks to the interplay of the clothing moving at different speeds.
  • the fiber material is separated into two parts at the transfer point, since only a part of the fibers are mechanically carried along by the drum set, while a considerable part remains on the surface of the opening roller and is returned to the card plate.
  • the cover provided after the transfer point above the opening roller serves primarily to redissolve the fibers remaining on the surface of the opening roller from the roller itself, so that they can be combined again with the cotton wool of the food material.
  • the purpose of the cover is in no way to completely detach the fibers at the transfer point between the opening roller and the reel, but merely to create suitable conditions for the recovery of the fibers remaining on the surface of the opening roller.
  • the present invention is intended to improve the clean detachment of the fiber material from the clothing compared to the known devices and to prevent the accumulation of fibers on the nose or peeling edge of the shielding body, the amount of suction air required in the suction channel being smaller than in known devices.
  • the fiber material delivery point is formed from a suction channel for the cleaned fiber material, which tangentially extends from the opening roller and begins with a suction chamber that opens conically in the direction of withdrawal of the fiber material, which is delimited by the nose in the direction of rotation of the opening roller and that mutual distance between the shielding wall and roller shell in the direction of rotation of the opening roller from the nose to the rear end of the shielding wall is increasing.
  • a feed device with the two conveying rollers 11 is used for feeding fiber material to a Oeffnun g swalze with a roll shell 12.
  • the roll has a fitting 13 which is formed from teeth.
  • the roller jacket 12 is understood to mean the jacket surface which indicates the tips of the teeth.
  • the roller is rotatable about its axis 15 in the direction of rotation indicated by arrow 14.
  • a pivotable frame 16 carries the knives 17, which form a knife grate.
  • a flap 18 extends over part of the roller shell 12. This part, together with the flap 18, delimits a suction chamber 22.
  • a shielding body 19 has a shielding wall 20, which also extends over part of the roller shell 12.
  • the shielding body 19 has a nose 21 on its foremost region with respect to the direction of rotation indicated by the arrow 14.
  • a suction channel 23 extends away from this nose 21.
  • the inlet opening of the suction channel 23 is located at the location of the nose 21.
  • the parts 11, 17, 18 and 19 arranged around the roller 12 extend in the direction of the axis 15 over the entire length Length of the roller. Which between the roller shell 12 and the flap 18 and the Shielding 20 cavities are covered on both ends.
  • the fiber material to be cleaned is fed to the clothing 13 by means of the conveyor rollers 11. It is carried along by the teeth or the clothing 13 when the opening roller is rotating. Due to the centrifugal force caused by the rotation, the impurities present in the fiber material, such as granules, dust particles and the like, are flung outwards and separated with the cooperation of the knives 17 from the fibers hanging on the teeth of the clothing 13 in this working phase. Subsequently, the fiber material detaches from the clothing 13 in the suction chamber 22 as a result of the effect mediated by the suction channel 23 and the shielding wall 20. The cleaned fibers carried away through the channel 23 then go to further processing.
  • the shielding wall 20 is given a shape in which its mutual distance with the clothing 13 in the direction of rotation indicated by the arrow 14 away from the nose 21 is increasing. This means that in comparison with the known prior art, with such an embodiment, a perfect detachment of the fiber flakes with a smaller amount of air flowing through the suction duct 23 is obtained and thus energy savings result.
  • the shielding wall 20 appears to act as a sealing element, which causes the air to back up between the boundaries 12 and 20. Vortices arise between these limits, through which air can flow back on the nose 21 in the direction opposite to the direction of rotation of the roller.
  • a further, advantageous embodiment of the invention in order to obtain the cheapest possible, low-loss deflection of the material flow, is obtained by the provision of a flap 18, which is designed as shown in the drawing.
  • the flap 18 extends from the inlet opening of the suction channel 23 located at the location of the nose 21 counter to the direction of rotation indicated by the arrow 14 over part of the roller shell 12, the mutual distance of the latter and the flap 18 from the inlet opening of the suction channel 23 countering the end of the flap 18 remote from this opening is decreasing.
  • the flap 18 forms the gap 25 with the roller jacket 12.
  • the opening 25 is attached as close as possible to the roller jacket 12.
  • This type of air inlet also has a significant influence on the detachment of the fiber material from the clothing of the opening roller, since this arrangement disrupts the air ring on the one hand, and on the other hand only a portion of the required amount of exhaust air is fetched directly from outside the machine. The rest of the necessary amount of suction air is applied through the peeled air ring.
  • the set 13 consists of a plurality of teeth.
  • the air ring mentioned can be regarded as being composed of an inner and an outer partial ring.
  • the inner part ring consists of the air between the teeth and therefore has a thickness that is the same as the height of the teeth. Its maximum diameter is the same as that of the roll shell 12.
  • the outer part ring is located above the inner part ring and its smallest diameter is the same as that of the roll shell 12.
  • the inner part ring of the air ring is beyond the direct influence of the nose 21, since the latter cannot be immersed in this part ring. However, this is the case with the outer part ring, so that it can be directly influenced by the nose.
  • tooth heights of up to approximately 5 millimeters (mm) prove to be particularly advantageous in the present invention, because under these circumstances a strong weakening of the air ring is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (7)

1. Machine de nettoyage pour matière fibreuse, qui comprend un cylindre d'ouvraison (12) pourvu d'une garniture (13) et tournant autour d'un axe (15), et, entourant ce dernier, selon la succession suivante, un dispositif d'alimentation (11) pour la matière fibreuse, une grille formée de couteaux (17), un poste de dégagement de matière fibreuse et un corps de protection (19), machine dans laquelle ces parties disposées autour du cylindre (12) s'étendent au-dessus du cylindre dans le sens de l'axe de rotation (15) du cylindre, et où le corps de protection (19) possède un nez (21), ainsi qu'une paroi de protection (20) du corps de protection (19) qui s'éloigne du nez (21) et s'étend dans le sens de rotation du cylindre (12)" au-dessus d'une partie d'une enveloppe de cylindre comprenant les pointes de la garniture (13), caractérisée par le fait que le poste de dégagement de matière fibreuse est formé par une chambre d'aspiration (22) pour la matière fibreuse nettoyée, qui s'éloigne tangentiellement du cylindre d'ouvraison (12) et qui s'ouvre d'une manière conique dans le sens d'extraction de la matière fibreuse, chambre d'aspiration qui, dans le sens de rotation (14) du cylindre d'ouvraison (12), est limitée par le nez (21), et que la distance réciproque entre la paroi de protection (20) et l'enveloppe de cylindre va en augmentant depuis le nez (21) jusqu'à l'extrémité postérieure de la paroi de protection (20), dans le sens de rotation (14) du cylindre d'ouvraison (12).
2. Machine de nettoyage selon revendication 1, caractérisée par le fait qu'une paroi terminale (24) s'étend depuis l'extrémité postérieure de la paroi de protection (20) jusqu'aux environs immédiats de l'enveloppe de cylindre (12).
3. Machine de nettoyage selon revendication 2, caractérisée par le fait que la paroi terminale (24) est dirigée essentiellement d'une manière radiale vers le cylindre d'ouvraison (12).
4. Machine de nettoyage selon revendication 1, caractérisée par le fait qu'un clapet (18) s'étend au-dessus d'une partie de l'enveloppe de cylindre (12), depuis l'ouverture d'entrée du canal d'aspiration (23), dans le sens contraire au sens de rotation (14) du cylindre d'ouvraison (12), et limite, conjointement avec cette partie de l'enveloppe de cylindre, la chambre d'aspiration (22), et que la distance réciproque entre le clapet (18) et l'enveloppe de cylindre (12) va en diminuant depuis l'ouverture d'entrée du canal d'aspiration (23), et que, à l'extrémité la plus éloignée de l'ouverture d'entrée, le clapet (18) est séparé de l'enveloppe de cylindre (12) par une fente (25).
5. Machine de nettoyage selon revendication 1, caractérisée par le fait que la garniture (13) possède des dents qui ne sont pas plus hautes que de 5 mm environ.
6. Machine de nettoyage selon revendications 1 et 5, caractérisée par le fait que la distance réciproque comprise entre la paroi de protection (20) et l'enveloppe de cylindre (12) augmente depuis 2 mm à peu près vers le nez (21) à environ 10 mm à l'extrémité postérieure de la paroi de protection (20).
7. Machine de nettoyage selon revendications 2 et 5, caractérisée par le fait que la fente (26) comprise entre le nez (21) et l'enveloppe de cylindre (12), et la fente (27) comprise entre la paroi terminale (24) et l'enveloppe de cylindre (12) possède chacune une largeur d'à peu près 2 mm.
EP83109385A 1982-11-05 1983-09-21 Machine de nettoyage pour du matériel en fibres Expired EP0108229B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6445/82 1982-11-05
CH644582 1982-11-05

Publications (2)

Publication Number Publication Date
EP0108229A1 EP0108229A1 (fr) 1984-05-16
EP0108229B1 true EP0108229B1 (fr) 1987-11-11

Family

ID=4309749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83109385A Expired EP0108229B1 (fr) 1982-11-05 1983-09-21 Machine de nettoyage pour du matériel en fibres

Country Status (5)

Country Link
US (1) US4507827A (fr)
EP (1) EP0108229B1 (fr)
JP (1) JPS5994622A (fr)
DE (1) DE3374423D1 (fr)
IN (1) IN162191B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3720037A1 (de) * 1987-06-16 1987-12-10 Hergeth Hubert Doppelwalzenoeffner
DE3911897A1 (de) * 1989-04-12 1990-10-25 Hergeth Hubert Aushebenase
DE3912529A1 (de) * 1989-04-17 1990-10-18 Hergeth Hubert Absaugraum
EP0464441A1 (fr) * 1990-07-02 1992-01-08 Maschinenfabrik Rieter Ag Procédé et installation pour le nettoyage de fibres de coton
US5237727A (en) * 1990-07-02 1993-08-24 Maschinenfabrik Rieter Ag Adjustable cleaning of fibers in a spiralled air path and apparatus
EP0481302A3 (en) * 1990-10-16 1992-09-02 Maschinenfabrik Rieter Ag Grid for an opening roller of a spinning machine
US5414900A (en) * 1992-01-14 1995-05-16 The United States Of America As Represented By The Secretary Of Agriculture Fiber cleaning
US5173994A (en) * 1992-01-14 1992-12-29 The United States Of America As Represented By The Secretary Of Agriculture Fiber cleaning apparatus with air flow deflector
DE59711965D1 (de) 1996-05-20 2004-11-04 Rieter Ag Maschf Anlage zum Verarbeiten von Fasern
DE19630018A1 (de) * 1996-07-25 1998-01-29 Rieter Ag Maschf Anlage zum Verarbeiten von Fasern
EP0894878A3 (fr) 1997-07-30 2000-04-19 Maschinenfabrik Rieter Ag Nettoyeur de flocons
EP2041236A1 (fr) 2006-06-26 2009-04-01 Bp Exploration Operating Company Limited Fluide de forage
DE102019116584A1 (de) * 2019-06-19 2020-12-24 Saurer Spinning Solutions Gmbh & Co. Kg Faserbandauflöseeinrichtung für eine Offenend-Spinnvorrichtung und Speisemulde für die Faserbandauflöseeinrichtung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2313256A (en) * 1941-08-11 1943-03-09 Continental Gin Co Fluid distribution and collection system
US2987779A (en) * 1957-02-05 1961-06-13 Kawashima Kanichi Doffing process and apparatus for the card by action of air
US3115683A (en) * 1960-01-21 1963-12-31 Whitin Machine Works Carding machines for textile fibres
DE1685571B2 (de) * 1967-07-26 1977-06-02 Maschinenfabrik Rieter Ag, Winterthur (Schweiz) Messerrost an einer reinigungsmaschine fuer baumwollfasern o.dgl.
US3894315A (en) * 1970-11-16 1975-07-15 Agency Ind Science Techn Method and apparatus for forming fiber assembly oriented in one fixed direction
CS167567B1 (fr) * 1972-10-02 1976-04-29
US3982302A (en) * 1975-04-10 1976-09-28 Scott Paper Company Web forming apparatus and method
BR7706320A (pt) * 1976-09-27 1978-05-09 Gunter & Cooke Inc Processo para cardar algodao e fibras sinteticas
US4152812A (en) * 1977-07-18 1979-05-08 Goodin Dolph L Cotton cleaning attachment for cotton scraper
DE2755380B2 (de) * 1977-12-12 1981-01-08 Temafa, Textilmaschinenfabrik Meissner, Morgner & Co Gmbh, 5060 Bergisch Gladbach Vorrichtung zum öffnen und Reinigen von Baumwollabfällen
DE2934562C2 (de) * 1979-08-27 1982-05-19 Hollingsworth Gmbh, 7265 Neubulach Speiseaggregat zum Zuführen von Fasermaterial zur Vorreißerwalze einer Karde

Also Published As

Publication number Publication date
US4507827A (en) 1985-04-02
DE3374423D1 (en) 1987-12-17
EP0108229A1 (fr) 1984-05-16
IN162191B (fr) 1988-04-16
JPH0335408B2 (fr) 1991-05-28
JPS5994622A (ja) 1984-05-31

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