EP1411157B1 - Carde avec garniture de chapeaux présentant des pointes meulées - Google Patents

Carde avec garniture de chapeaux présentant des pointes meulées Download PDF

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Publication number
EP1411157B1
EP1411157B1 EP03020796A EP03020796A EP1411157B1 EP 1411157 B1 EP1411157 B1 EP 1411157B1 EP 03020796 A EP03020796 A EP 03020796A EP 03020796 A EP03020796 A EP 03020796A EP 1411157 B1 EP1411157 B1 EP 1411157B1
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EP
European Patent Office
Prior art keywords
hooks
carding machine
flat
clothing
relief grinding
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 - Lifetime
Application number
EP03020796A
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German (de)
English (en)
Other versions
EP1411157A1 (fr
Inventor
Hans-Ulrich Schneider
Bernhard Bocht
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.)
Truetzschler Card Clothing GmbH
Original Assignee
Truetzschler Card Clothing GmbH
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Publication date
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Application filed by Truetzschler Card Clothing GmbH filed Critical Truetzschler Card Clothing GmbH
Publication of EP1411157A1 publication Critical patent/EP1411157A1/fr
Application granted granted Critical
Publication of EP1411157B1 publication Critical patent/EP1411157B1/fr
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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
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/86—Card clothing; Manufacture thereof not otherwise provided for with flexible non-metallic backing
    • 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
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for

Definitions

  • the present invention relates to a carding machine with an all steel set comprising a drum and a revolving flat apparatus with a set comprising flat bars, the flat set having hooks, wherein the prongs have an undercut at an angle less than 5 degrees and a Schuschliff Structure has a length at least 0.5 times the largest hook cross-sectional dimension.
  • Existing cards have hook covers consisting of hooks.
  • a wire set is eg from the EP 1227179 A1 known. These hooks having trimmings are used on the cover device of a card. These may be fixed cover elements or revolving lids.
  • the hooks used there have reliefs on and have a Schuschliff Structure, which expires arched backwards. The angle of the relief is determined between the area of the back grinding surface adjacent to the tip of the hook and a plane defined by the tips of the hooks.
  • a sharp tip is formed in the prior art. It is common belief that this sharp tip is very advantageous in fiber dissolution and leads to good carding results. However, a more frequent regrinding changes the geometric conditions, resulting in poorer carding results.
  • the drum peripheral speed is greater than 1300 m / min
  • a drum set height is less than 3 mm
  • a chest angle of the teeth of the drum set greater than 25 ° and in particular greater than 30 °
  • the foot width of the drum set is smaller than 0.8 mm in particular less than 0.7 mm.
  • modern high performance carts may use more than one licker.
  • the angle is measured between a plane parallel to the flat bar and the rear surface of the check mark.
  • the advantage lies in the simpler one Regrinding the hooks and on the other hand, that over the entire service life of a flat set carding quality is consistently high.
  • the term Schuschleife Scheme is also used in the present application, when the angle is 0 degrees and thus actually no relief is present.
  • the wire diameter or, in the case of oval wires should be meant.
  • the cross-section is considered perpendicular to the center axis of the wire. At small angles for the back surface makes their length particularly positive, because much more material is available.
  • the regrinding is particularly simple if the relief bevel angle is flat, ie 0 degrees. Due to the geometrically simple contour, the manufacture or the regrinding, in particular with regard to easy-to-use grinding tools, designed relatively simple and inexpensive.
  • a plurality of rear surfaces of the prongs of the lid may have the same distance to a flat-top plane.
  • the term "flat-top" level generally means here the fastening plane spanned by a fastening device. For example, partially so-called clothing strips are used, which are installed on fastening devices on the flat bar. The fastener then accurately indicates the location of the prongs and defines the flat top level. This extends in many cases substantially perpendicular to the radius of the drum, but can also be easily inclined to this. So it is known, for example, that at the beginning of processing (inlet) of a flat bar, the distance to the clothing of the drum is greater than at the end (outlet). The flat-top plane is then clamped accordingly, so that the rear-grinding surfaces are also arranged correspondingly with respect to the drum set.
  • the back ground area may have a length / width ratio of greater than 3.5. This also ensures that sufficient material is available in the tip area.
  • the back ground surface may have a width of less than 0.1, preferably 0.07 mm.
  • the processing resistance in the carding zone should be kept as low as possible.
  • the hooks may have in the direction of the back ground surface converging side surfaces having a vertical height of at least 1.5 mm to Hinterschleife Chemistry. In some cases it is also possible to increase this height beyond 2.5 mm or even 3.2 mm. This is usually achieved by a smaller angle ⁇ , in which the side surfaces run. This makes it possible to achieve a regrinding of the flat clothing over a much larger area, without the conditions at the top of the hooks becoming unacceptable.
  • two hooks may be formed from a U-shaped bent piece of wire.
  • This type of production is relatively simple, since a relatively stable structure is created by simple bending technique that can be easily anchored.
  • an angle spanned between the rear grinding surface and the front working surface of the hook is greater than 60 degrees, preferably greater than 70 degrees.
  • the front processing surface is the surface of the prong facing the processing directions of the drum.
  • the angle should be less than 90 degrees, preferably 80 degrees. This further ensures that forms a tip for carding on the hook.
  • hooks of carbide alloyed carbon steel are used.
  • a carbon steel is preferably heat-treatable such that e.g. by the heat treatment form carbides in the surface area, which support the hardening.
  • the invention is particularly effective if, according to one variant, the total height of the hooks is less than 9 mm. This results in an optimum ratio between the cross sections usually used and the overall height and the expected load.
  • the drum peripheral speed is greater than 1300 m / min, a height of the drum set is less than 3 mm, a breast angle of the teeth of the drum set larger than 25 ° and in particular greater than or equal to 30 °, and the foot width of the drum set is less than 0.8 mm, in particular less than 0.7 mm.
  • the geometric data specified herein are to be considered primarily, preferably exclusively, in the case of new flat clothings or in reground flat clothings prior to further use.
  • the present invention relates to the geometrical aspects of flat clothings and not to drum sets, in particular all-steel clothings.
  • a card 1 is shown. It consists inter alia of a drum 2, which rotates about a center of rotation A in the direction of arrow B. On its surface 7 is an all-steel set. At least a part of the surface 7 is in operative relationship with a lid apparatus 3.
  • This is a traveling lid apparatus, which comprises a plurality of flat bars 23 with DeckelgamiturstMail arranged thereon.
  • the flat rod migrates by means of deflection rollers 4 against or in rotary motion with its flat bars 23 on the drum 2 along. Between flat cover and a drum set a machining gap 4 is present.
  • the check marks 8 are in Fig. 2 shown enlarged in the machining gap 4.
  • the hooks 8 are angled and therefore have a so-called knee.
  • a longitudinal axis 9 of the hooks 8 faces opposite to the direction of rotation B of the drum 2.
  • the saw teeth, which are mounted on the drum 2 point in the other direction than the check marks 8, which are fixed to the flat bar 23.
  • the check marks 8 each form part of the clothing 6 from the flat bar 23.
  • Fig. 3 is a check mark 8, which is in the set 6 of the flat bar 23 of the lid apparatus 3 application is shown, which is made of an oval wire.
  • the check mark 8 comprises a main body 10, to which a bending part 11 connects with the tip 12.
  • the bent part 11 has at least two regions, the front region forming the tip 12 with the sharp pointed end.
  • the base body 10 and bending part 11, up to a processing edge 14 have an oval cross-section.
  • the tip 12 has on the upper side a Häschliff Structure 13. On the sides, the tip 12 has side surfaces 15. The side surfaces 15 are made flat by a side cut. The rear grinding surface 13 is ground precisely in a relief grinding angle of 0 degrees. The Schuschliff vom all hooks are thus in a plane which is clamped parallel to a flat-top plane.
  • a relief angle .alpha. Is measured between an axis running through the front tip end of two hooks 8 arranged one behind the other and a tangent 18 of the rear grinding surface 13 running through the front tip end.
  • the fiber material to be processed is fed to the card or carding machine via feed rollers. There, it gets into the machining gap 4 between the drum 2 and the flat bar 23.
  • the bevel angle ⁇ 0 ° ensures that, despite re-sharpening the cover gauges, consistent carding qualities are maintained over the entire service life.
  • tick 8 is designed as Doppelhotchen and made by U-shaped bending of a clothing wire.
  • the U-shaped clothing wire piece is anchored in a multi-layer fabric construction 19.
  • a U-web 20 of the piece of wire extends along the underside of the fabric construction 19.
  • Above the knee 21 in each case a check mark has the side surfaces 15 converging towards the relief surface 13.
  • the side surfaces 15 converge towards each other at an angle ⁇ of about 7 degrees.
  • It remains at the end of the tip 12 is a substantially rectangular Hinterschleiff sampling 13 with a width in the new state of about 0.03 mm.
  • An angle ⁇ , which spans between the rear grinding surface 13 and a processing surface 22 on the front side of the hook 8 is approximately 76 degrees in the present case.
  • the Hinterschliff Structure 13 is designed just.
  • a plurality of adjacently arranged rear grinding surfaces 13 within a clothing area are arranged in a common plane.
  • the side surfaces 15 have a vertical length from the undercut surface 13 measured from 2 mm. At this point it should be mentioned that the vertical height should be at least 1.5 mm and the angle ⁇ greater than 60 degrees, preferably greater than 70 degrees. Furthermore, care should be taken that the angle ⁇ should be less than 90 degrees, preferably 80 degrees.
  • the length of the back grinding surface 13 is at least 0.5 times the largest cross-sectional dimension. This cross-sectional dimension is defined by the length of the oval cross-section. Furthermore, a length / width ratio of the back ground surface 13 is larger than 3.5. In the following case, the length is about 0.4 mm, so that results in a ratio of about 12.5.
  • the back ground surface has a width of less than 0.1 mm, preferably 0.07 mm. In particular, this requirement should be present in a new construction or a reground set in the unused condition.
  • the in the 4 and 5 shown set has an angle ⁇ of 0 degrees, so that actually no relief is present.
  • the hooks are formed by wire pieces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Road Signs Or Road Markings (AREA)

Claims (15)

  1. Carde avec un tambour (2) présentant une garniture tout en acier, et avec un appareil à chapeau marchant pourvu de tiges de chapeau (23) présentant une garniture (6), la garniture de chapeau présentant des crochets (8), ces crochets (8) présentant une dépouille suivant un angle (α) inférieur à 5 degrés, et une surface dépouillée (13) présentant une longueur qui correspond au moins à 0,5 fois la dimension maximale, en coupe transversale, des crochets, caractérisée en ce que la surface dépouillée (13) présente un rapport longueur/largeur supérieur à 3,5.
  2. Carde selon la revendication 1, caractérisée en ce qu'une surface dépouillée (13) formée grâce à une dépouille a une forme plane, c'est-à-dire que l'angle de dépouille (α) est de 0 degré.
  3. Carde (1) selon la revendication 1 ou 2, caractérisée en ce qu'au moins les surfaces dépouillées (13) de tous les crochets (8) d'une tige de chapeau (23) sont situées globalement dans un plan.
  4. Carde (1) selon l'une des revendications 1 à 3, caractérisée en ce que plusieurs surfaces dépouillées (13) des crochets (8) de la tige de chapeau (23) présentent le même écartement par rapport à un plan de tige de chapeau (24).
  5. Carde selon l'une des revendications 1 à 4, caractérisée en ce que la surface dépouillée (13) présente une largeur inférieure à 0,1 mm, de préférence de 0,07 mm.
  6. Carde selon l'une des revendications 1 à 5, caractérisée en ce que les crochets (8) ont des surfaces latérales (15) qui se rejoignent en direction de la surface dépouillée (13) et qui présentent une hauteur verticale d'au moins 1,5 mm à partir de ladite surface dépouillée (13).
  7. Carde (1) selon l'une des revendications 1 à 6, caractérisée en ce que deux crochets (8) sont formés à chaque fois à partir d'un morceau de fil plié en U.
  8. Carde selon la revendication 7, caractérisée en ce que le morceau de fil est ancré dans une construction en tissu.
  9. Carde selon l'une des revendications 1 à 8, caractérisée en ce qu'un angle (γ) supérieur à 60 degrés, de préférence supérieur à 70 degrés, est défini entre la surface dépouillée (13) et la surface de traitement avant (22) du crochet (8).
  10. Carde (1) selon la revendication 9, caractérisée en ce que l'angle (γ) est inférieur à 90 degrés, et est de préférence de 80 degrés.
  11. Carde (1) selon l'une des revendications 1 à 10, caractérisée en ce que les crochets (8), au moins, sont en acier au carbone allié.
  12. Carde ou machine à carder (1) selon l'une des revendications 1 à 11, caractérisée en ce que les crochets (8) sont soumis à un traitement thermique.
  13. Carde (1) selon l'une des revendications 1 à 12, caractérisée en ce que la hauteur totale des crochets (8) est inférieure à 9,0 mm.
  14. Carde (1) selon l'une des revendications 1 à 13, caractérisée en ce que la vitesse circonférentielle de tambour est supérieure à 1300 m/min, une hauteur de la garniture de tambour est inférieure à 3 mm, un angle d'attaque des dents de la garniture de tambour est supérieur à 25° et notamment supérieur ou égal à 30°, et la largeur de base de ladite garniture est inférieure à 0,8 mm et en particulier inférieure à 0,7 mm.
  15. Garniture de chapeau (6) à utiliser dans une carde (1) avec un tambour (2) présentant une garniture tout en acier, et avec un appareil à chapeau marchant pourvu de tiges de chapeau (23), la garniture de chapeau présentant des crochets (8), ces crochets (8) présentant une dépouille suivant un angle (α) inférieur à 5 degrés, et une surface dépouillée (13) présentant une longueur qui correspond au moins à 0,5 fois la dimension maximale, en coupe transversale, des crochets, caractérisée en ce que la surface dépouillée (13) présente un rapport longueur/largeur supérieur à 3,5.
EP03020796A 2002-10-18 2003-09-12 Carde avec garniture de chapeaux présentant des pointes meulées Expired - Lifetime EP1411157B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10248776 2002-10-18
DE10248776A DE10248776B3 (de) 2002-10-18 2002-10-18 Karde mit einer, eine Ganzstahlgarnitur aufweisenden Trommel

Publications (2)

Publication Number Publication Date
EP1411157A1 EP1411157A1 (fr) 2004-04-21
EP1411157B1 true EP1411157B1 (fr) 2008-03-26

Family

ID=32038770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03020796A Expired - Lifetime EP1411157B1 (fr) 2002-10-18 2003-09-12 Carde avec garniture de chapeaux présentant des pointes meulées

Country Status (3)

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EP (1) EP1411157B1 (fr)
AT (1) ATE390501T1 (fr)
DE (2) DE10248776B3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100372977C (zh) * 2005-03-22 2008-03-05 东华大学 精细化黄麻绒纤维专用盖板针布
CH699275B1 (de) * 2007-06-01 2011-05-31 Rieter Ag Maschf Flexible Garnitur.
DE102010045308A1 (de) 2010-09-14 2012-03-15 Graf + Cie Ag Kardendeckelgarnitur mit progressivem/regressivem Bearbeitungswinkelverlauf
CH704982A1 (de) * 2011-05-20 2012-11-30 Rieter Ag Maschf Vorrichtung zum Ausscheiden von Schmutz und Kurzfasern an einer Karde.
JP6967258B2 (ja) * 2016-11-25 2021-11-17 株式会社荒木製作所 針布の製造方法
CN108342793B (zh) * 2018-03-20 2023-11-17 武汉纺织大学 一种提高纤维梳理质量的盖板针布及梳理机

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488442A (en) * 1948-03-10 1949-11-15 Jr Edwin Allen Snape Card clothing
GB787009A (en) * 1955-12-30 1957-11-27 Howard Brother S Mfg Company Improvements in card-clothing
DE1106653B (de) * 1957-11-11 1961-05-10 Herbert Hausmann Kratzenbeschlag fuer die Deckel von Karden
US3325866A (en) * 1964-04-02 1967-06-20 Associated Design & Mfg Co Inc Card clothing
DE2825506A1 (de) * 1978-06-10 1979-12-20 Truetzschler & Co Kardiergarnitur
GB2146669B (en) * 1983-09-19 1987-05-13 Holdsworth And Brothers Limite Card clothing
DE19739187A1 (de) * 1997-09-08 1999-03-11 Truetzschler Gmbh & Co Kg Vorrichtung an einer Karde mit einer Wanderdeckeleinrichtung
EP0945532A3 (fr) * 1998-01-29 2000-08-30 Maschinenfabrik Rieter Ag Garnitures de chapeaux, notamment leur fabrication pour machines de cardage à chapeaux mobiles
US5981110A (en) * 1998-02-17 1999-11-09 International Business Machines Corporation Method for repairing photomasks
EP1227179B1 (fr) * 2001-01-25 2005-12-28 Maschinenfabrik Rieter Ag Garniture de carde

Also Published As

Publication number Publication date
EP1411157A1 (fr) 2004-04-21
DE50309453D1 (de) 2008-05-08
ATE390501T1 (de) 2008-04-15
DE10248776B3 (de) 2004-09-09

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