EP1733080B1 - Cuve de nettoyage - Google Patents

Cuve de nettoyage Download PDF

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Publication number
EP1733080B1
EP1733080B1 EP05714703A EP05714703A EP1733080B1 EP 1733080 B1 EP1733080 B1 EP 1733080B1 EP 05714703 A EP05714703 A EP 05714703A EP 05714703 A EP05714703 A EP 05714703A EP 1733080 B1 EP1733080 B1 EP 1733080B1
Authority
EP
European Patent Office
Prior art keywords
roller
knife
rotation
cleaner shaft
guide element
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.)
Not-in-force
Application number
EP05714703A
Other languages
German (de)
English (en)
Other versions
EP1733080A1 (fr
Inventor
Götz Theodor Gresser
Dyrk Saaro
Peter Netzhammer
Christian Sauter
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 EP1733080A1 publication Critical patent/EP1733080A1/fr
Application granted granted Critical
Publication of EP1733080B1 publication Critical patent/EP1733080B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • D01G9/12—Combinations of opening or cleaning machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/34—Grids; Dirt knives; Angle blades

Definitions

  • the present invention relates to a cleaner shaft for spinning machines, for example carding, carding.
  • the material supply of the card has an influence on the end product of the card: the card sliver. Irregularities in the feed are detectable in the tape since they are responsible for the formation of thick or thin spots, c. q. cause the formation of thick or thin areas. These defects can hardly be corrected in the course of the remaining processes to produce a yarn and therefore have a direct influence on the final yarn quality.
  • the cotton wool formed in the feed chute must be evenly distributed across the width and of equal density.
  • a problem with this is the pneumatic flocculation, which feeds the single card with flakes unevenly. This problem has been solved by a shaft which has been split by a feed device in two parts, whereby the actual cotton sheet to the card is only locally influenced by this feed device.
  • the cleaning machines such as coarse cleaner or fine cleaner, responsible.
  • the coarse cleaner is usually at the beginning of the process directly after the bale opener, which removes the cotton from the bales and fed into the pneumatic transport arranged.
  • the coarse cleaner is available in very different models, but they have some common features.
  • the material is usually processed in free flight using coarsely stocked work rolls. The opening effect is therefore low and above all coarse dirt, which is present on the outside of the flakes is removed.
  • Coarse cleaners also remove free dirt particles, such as shell parts or other foreign bodies.
  • the fine cleaner comes much later in the process and is usually directly upstream of the card.
  • the fine cleaner is more focused on the removal of dirt from inside the flakes. Therefore, this cleaning step should take place after an additional opening step.
  • the fine cleaner almost always works with clamped feed and a finer placement of the feed downstream roller.
  • the opening roller is equipped as a cleaning roller, for example with grating knives and a saw tooth set on the roller.
  • the disclosed arrangements have mainly the disadvantage that they become expensive in construction and therefore expensive. Additionally, they would not be able to function reliably from a technological point of view.
  • the invention is based on the object, a device of the above to create the type described, which avoids the disadvantages mentioned, which in particular integrates the fine cleaning function in the hopper, without taking over the complex construction of the fine cleaner.
  • the range of 10 to a maximum of 190 ° with respect to the vertical line through the rotational axis of the opening roller in the direction of rotation is suitable for the arrangement of a discharge point.
  • the two discharge point are preferably arranged so that a trouble-free disposal of waste is ensured, and any adverse effects on the air balance are excluded.
  • the dirt discharge point is defined by the separation gap between the transfer point and the knife edge.
  • the transfer point is defined as the point where the smallest distance between the clothing of the feed device and that of the opening roller is. This point is sometimes called Kämmddling, here the fibers are taken over by the opening roller.
  • the distance between the transfer point and the knife edge expressed in the angle ( ⁇ ) between the transfer point and the knife edge, measured from the transfer point through the axis of rotation of the opening roller in the direction of rotation, is between 10 ° and 65 °, preferably between 10 ° and 45 °, in particular between 20 ° and 32 °. This distance affects the opening of the separation gap and thereby the leaving amount and leaving composition.
  • the adjustment of the angle ( ⁇ ) depends on inter alia the length of the individual fibers and the degree of contamination.
  • the hopper can also be set by the knife to a minimum level, are used for the dissolution of chemical fibers.
  • the knife will then function as a normal guide "or the knife may be replaced by a baffle and the cleaner well would be able to operate like a normal feed well.
  • the feed roller relative to the opening roller at an angle ( ⁇ ) of 25 ° to 90 ° inclined (measured through the axis of rotation of the feed roller and the opening roller relative to the vertical plane through the axis of rotation of the opening roller in the direction of rotation of the opening roller.).
  • the fiber discharge point should preferably be arranged in such a way that a technologically sensible discharge of the good fibers takes place. Since the dissolution of the fiber flakes takes place at the transfer point, a long residence time of the fibers on the opening roller does not make any sense in terms of technology, so a fast discharge is effective for the entire process.
  • a guide surface is arranged, which allows a clear separation between the precipitation point and the fiber discharge point.
  • This guide surface can be formed as a separate guide element or together with the knife.
  • the knife is extended to the rear, as will be explained later.
  • the guide surface can run parallel to the radius of the roller surface, wherein the distance to the roller surface can remain the same or opens.
  • To open means that the distance between the two surfaces increases in the direction of rotation.
  • the fibers are inclined to move outward on the clothing so that they can be thrown off.
  • This movement of the fibers is such that the discharge point is preferably arranged at an angle ( ⁇ ) of 40 ° to 55 ° (measured from the beginning of the opening through the axis of the opening roller in the direction of rotation).
  • ⁇ angle
  • the discharge point is then arranged in an angle ( ⁇ ) of 40 ° to 55 °, measured from the knife edge through the axis of the opening roller in the direction of rotation.
  • the knife is preferably combined with the guide element, which is arranged downstream.
  • the edge of the knife will have a high potential for wear due to the dirt particles and the fibers that strike over the edges. You can either choose a wear-resistant material and / or make the knife edge interchangeable.
  • An alternative solution is the production of the knife and guide element in one piece. Before this, a piece of sheet metal is first made into the desired thickness, the knife edge is ground and then the sheet is bent into the desired curvature. This creates a finer. Knife edge, which has no additional fasteners or grooves where dirt or fiber rags can stick.
  • This production technique has the advantage that a stable, inexpensive knife can be manufactured, which is interchangeable.
  • the fastening elements are arranged on the side of this knife, in particular fasteners that allow a change in the setting of the distance transfer point / knife edge, while the knife is installed.
  • the degree of cleaning which can be achieved by the cleaner shaft according to the invention, is influenced by the distance between the knife edge and the needle tips and by the distance between the knife edge and the transfer point.
  • This last knife adjustment can be adjusted manually or with the help of a drive.
  • the adjustment can take place with predetermined intervals or steplessly.
  • the adjustment can be combined with a controller that makes or adjusts the setting, preferably depending on the degree of soiling, fiber length or provenance.
  • This setting can also be dependent on parameters that are otherwise measured on the card, for example the number of nits in the outgoing product.
  • This parameter can be integrated with the controller.
  • angles ⁇ , ⁇ and ⁇ together preferably do not exceed the 180-200 °, so that the fiber, discharge point is also arranged at a technologically meaningful point. It is not necessary to tilt the feed roller in the direction of rotation with respect to the opening roller, but even a slight inclination has an advantageous effect on the removal of dirt.
  • An example of a cleaner shaft arrangement could therefore be an ⁇ of 45 °, a ⁇ adjustable between 20 ° and 35 ° and ⁇ of 45 °.
  • the soil removal point would then be between angles ⁇ and ⁇ , or between 45 ° and 80 °, and the ejection point would then lie at a total angle of ⁇ , ⁇ and ⁇ of at most 125 °.
  • an additional guide element or baffle plate (28) such that the discarded flakes are deflected in the lowermost part of the shaft. Especially if the total angle comes in the vicinity of 180 ° to 200 °.
  • FIG. 3 schematically shows an inventive arrangement of the cleaning point in a cleaner shaft.
  • the feed roller 9 and feed trough 10 together transport the cotton flakes from the upper part of the hopper (7) on the opening roller (1), also known as opener roller.
  • the smallest distance between the feed trough and the feed roll forms the feeding point or clamping point.
  • This point is called transfer point (17) - but is also known as Kämmstelle or Kämmddling.
  • the cotton fibers are transferred here to the opening roller.
  • This outlet channel may, for example, be in the form of an evacuated channel, or in the form of a channel directed directly downwards, whereby gravity helps with removal.
  • the fiber flakes adhering to the clothing of the opening roller are guided past a knife edge (3) directly after the meshing point, at which further coarse dirt and unresolved fiber knots are eliminated.
  • the distance of the knife edge from the transfer point is adjustable, whereby the amount of the outgoing quantity and thus also the cleaning efficiency can be influenced.
  • the good fibers are further transported to the opening roller along a guide element, which is directly downstream of the knife.
  • the fiber material is then dropped tangentially from the opening roller into the lower shaft part (8). There it can be further compressed by, via a compression fan, introduced air (13). Also, directing an air stream directly onto the opening roller to aid in the shedding of the floc and / or fibers may be an option. About a sieve wall at the back of the lower shaft (14), this air is discharged again.
  • the outlet rollers 15 in the lower shaft the cotton wool is presented on the inlet plate 16 of the feed roller of the card.
  • FIG. 4 shows a Wanderdeckelkarde 20, z.
  • the Rieter card C60 with a working width of 1.5 meters, with a cleaner shaft 6 according to the invention.
  • Fiber flakes are transported through transport channels (not shown) through the various cleaning process steps and finally fed into the cleaner shaft of the card. This then passes the fiber flakes to the card as cotton wool.
  • the feeder 27 feeds the fiber flakes to the lickerins 21.
  • the lickerins open the fiber flakes and remove some of the debris.
  • the last licker-in roller transfers the fibers to the card drum 22.
  • the card drum 22 cooperates with the lids 24 and further parallelizes the fibers.
  • the lids are cleaned by a lid cleaning 25. After the fibers have carried out several times several rounds on the card drum, they are removed from the doffer roller 23 of the card drum, fed to the squeegee 26 and finally stored as a card sliver in a can in a pot (not shown).
  • FIG. 5 is a guide element with knife edge shown. It can also be considered as an extended knife.
  • the production of such a knife can be done, for example, by manufacturing a straight knife plate with a knife edge in a first production step. In a second production step, you can then bend the extended knife across the width in the desired radius. Preferably such that the radius in Running direction of the opening roller is greater. As a result, the gap between the element and the roller opens, which causes the discharge of the fibers.
  • the production steps could also be reversed. But to achieve an accurate knife edge this is not advantageous.
  • the knife edge can be formed in particular by mechanical processing of the sheet in a straight shape, for example by milling or grinding.
  • the knife edge is ground only on one side, in particular the side averted from the roller.
  • the side facing the roller forms a smooth surface and prevents fiber adhesion.
  • the extended blade according to the invention can also be formed from two parts.
  • the extended knife fasteners (5) are arranged, for example, a slot and a fastening screw, preferably only on the front sides of the blade (In FIG. 5 drawn only on one side of the knife.)
  • the means of Befest Trent.derart are arranged so that the distance between the transfer point and the knife edge is adjustable, which includes a shift in the radial direction. This setting can then preferably be changed manually or automatically, preferably by means of a drive.
  • the cleaner shaft could be equipped with an autonomous own control, or be connected to a higher-level control system, for example, the card or that of the entire system.
  • the cleaning degree, the fiber load in the form of fiber damage and / or Nisse, nanmination and the Gutfaserfic in the departure are important parameters, which are partly related. For example, a high degree of cleaning goes on, also mostly coupled with an increased fiber load.
  • These parameters can be linked with machine parameters, such as the speed of the opening roller, the distance transfer point-knife edge, or the distance nip point transfer point. To simplify the setting, these settings can be integrated into a panel, such as in EP 452 676 has been described.
  • Operation is simplified in such a way that the operator only has to take a few decisions and thus be able to set all the machine parameters, for example the group parameters, the cleaning intensity and the output quantity. It is also possible to measure combinations with parameters on the card, for example an adjustment of the settings on the basis of a measured parameter on the card, for example nits, dunes or thick places. These can be measured z. B. on the web in the acceptance area or on the tape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)

Claims (18)

  1. Cuve de nettoyage (6) pour un métier à filer, comprenant un cylindre (1), de préférence un cylindre ouvreur, et un couteau disposé sur ce cylindre, avec une arête de coupe (3) disposée à l'encontre du sens de rotation du cylindre, un dispositif d'alimentation pour le cylindre, de préférence un cylindre d'alimentation (9) avec une cavité (10), le dispositif d'alimentation étant associé au cylindre de telle sorte qu'il se forme une zone de transfert (17), caractérisée en ce que le couteau est disposé directement après la zone de transfert.
  2. Cuve de nettoyage selon la revendication 1, caractérisée en ce que la zone de transfert (17) se forme là où le plan passant par les axes de rotation du cylindre d'amenée et du cylindre ouvreur est incliné suivant un angle (α) de 25° à 90° par rapport au plan vertical passant par l'axe de rotation du cylindre ouvreur dans le sens de rotation du cylindre ouvneur.
  3. Cuve de nettoyage selon la revendication 1 ou 2, caractérisée en ce que l'angle (β) entre la zone de transfert et l'arête de coupe est compris entre 10 et 65°, en particulier entre 10 et 45°, en mesurant depuis la zone de transfert à travers l'axe de rotation du cylindre ouvreur, dans le sens de rotation.
  4. Cuve de nettoyage selon l'une quelconque des revendications précédentes,
    caractérisée en ce que l'angle (γ) entre l'arête de coupe et le début de la zone de rejet des fibres est compris entre 40 et 55°, en mesurant depuis l'arête de coupe à travers l'axe de rotation du cylindre ouvreur dans le sens de rotation.
  5. Cuve de nettoyage selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un élément conducteur (4) est placé derrière l'arête de coupe.
  6. Cuve de nettoyage selon la revendication 5, caractérisée en ce que l'arête de coupe et l'élément conducteur sont constitués d'une seule pièce.
  7. Cuve de nettoyage selon la revendication 5 ou 6, caractérisée en ce que la distance entre l'élément conducteur et la surface de la garniture sur le cylindre est constante.
  8. Cuve de nettoyage selon la revendication 5, 6 ou 7, caractérisée en ce que la distance entre l'élément conducteur et la surface de la garniture sur le cylindre reste constante.
  9. Cuve de nettoyage selon la revendication 5, 6 ou 7, caractérisée en ce que la distance entre l'élément conducteur et la surface de la garniture sur le cylindre augmente dans le sens de rotation.
  10. Cuve de nettoyage selon la revendication 9, caractérisée en ce que cette augmentation de la distance commence directement après l'arête de coupe.
  11. Cuve de nettoyage selon la revendication 9, caractérisée en ce que cette augmentation de la distance commence après une région de distance constante entre l'élément conducteur et la surface du cylindre.
  12. Cuve de nettoyage selon la revendication 11, caractérisée en ce que l'angle (γ) entre le début de l'augmentation de la distance et le début de la zone de rejet des fibres est compris entre 40 et 55°, en mesurant depuis le début de l'augmentation de la distance à travers l'axe de rotation du cylindre ouvreur, dans le sens de rotation.
  13. Cuve de nettoyage selon l'une quelconque des revendications 1 à 12, caractérisée en ce que l'ajustement de l'arête de coupe peut être ajusté par rapport à la zone de transfert.
  14. Cuve de nettoyage selon la revendication 13, caractérisée en ce que l'on prévoit pour l'ajustement, des moyens mécaniques, par exemple un entraînement.
  15. Cuve de nettoyage selon l'une quelconque des revendications 1 à 14, caractérisée en ce qu'elle peut être raccordée à une commande ou qu'elle comprend elle-même une commande.
  16. Couteau pour la cuve de nettoyage selon l'une quelconque des revendications 1 à 15, caractérisé en ce qu'il est formé conjointement avec l'élément conducteur à partir d'une tôle.
  17. Couteau selon la revendication 16, caractérisé en ce que l'arête de coupe ne contient que d'un côté un profil de couteau qui est disposé du côté opposé au cylindre ouvreur.
  18. Couteau selon la revendication 16 ou 17, caractérisé en ce que le couteau avec l'élément conducteur présente un rayon courbe de telle sorte que l'élément conducteur puisse être disposé parallèlement à la surface du cylindre ouvreur.
EP05714703A 2004-03-18 2005-03-17 Cuve de nettoyage Not-in-force EP1733080B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4622004 2004-03-18
PCT/CH2005/000161 WO2005087994A1 (fr) 2004-03-18 2005-03-17 Cuve de nettoyage

Publications (2)

Publication Number Publication Date
EP1733080A1 EP1733080A1 (fr) 2006-12-20
EP1733080B1 true EP1733080B1 (fr) 2008-05-21

Family

ID=34961749

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Application Number Title Priority Date Filing Date
EP05714703A Not-in-force EP1733080B1 (fr) 2004-03-18 2005-03-17 Cuve de nettoyage

Country Status (5)

Country Link
EP (1) EP1733080B1 (fr)
CN (1) CN1954104A (fr)
BR (1) BRPI0508907A (fr)
DE (1) DE502005004191D1 (fr)
WO (1) WO2005087994A1 (fr)

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US8036458B2 (en) 2007-11-08 2011-10-11 DigitalOptics Corporation Europe Limited Detecting redeye defects in digital images
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DE102006005389A1 (de) 2006-02-03 2007-08-09 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Karde, Krempel o. dgl., zur Reinigung von Fasermaterial z. B. aus Baumwolle, die eine schnelllaufende erste oder Hauptwalze aufweist
DE102006005390B4 (de) 2006-02-03 2021-08-12 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde, Krempel o. dgl., zur Reinigung von Fasermaterial z. B. aus Baumwolle, die eine schnelllaufende erste oder Hauptwalze umfasst
DE102006005391A1 (de) 2006-02-03 2007-08-09 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Karde, Krempel o. dgl., zur Reinigung von Fasermaterial z. B. aus Baumwolle, mit einer schnelllaufenden oder Hauptwalze
EP1987475A4 (fr) 2006-02-14 2009-04-22 Fotonation Vision Ltd Detection et correction automatiques de defauts de flash anti-yeux rouges
WO2008023280A2 (fr) 2006-06-12 2008-02-28 Fotonation Vision Limited Progrès de l'extension des techniques aam des images en niveaux de gris aux images en couleurs
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Also Published As

Publication number Publication date
WO2005087994A1 (fr) 2005-09-22
BRPI0508907A (pt) 2007-08-07
EP1733080A1 (fr) 2006-12-20
CN1954104A (zh) 2007-04-25
DE502005004191D1 (de) 2008-07-03

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