EP2246464B1 - Abreiswalze für eine Kämmmaschine - Google Patents

Abreiswalze für eine Kämmmaschine Download PDF

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Publication number
EP2246464B1
EP2246464B1 EP10160701.8A EP10160701A EP2246464B1 EP 2246464 B1 EP2246464 B1 EP 2246464B1 EP 10160701 A EP10160701 A EP 10160701A EP 2246464 B1 EP2246464 B1 EP 2246464B1
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EP
European Patent Office
Prior art keywords
detaching
roller according
detaching roller
active portion
bar
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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.)
Active
Application number
EP10160701.8A
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English (en)
French (fr)
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EP2246464A1 (de
Inventor
Girolamo Prandini
Roberto Torcoli
Michele Miadoro
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.)
Marzoli Machines Textile SRL
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Marzoli Machines Textile SRL
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Publication of EP2246464A1 publication Critical patent/EP2246464A1/de
Application granted granted 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
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/18—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/74—Rollers or roller bearings
    • D01H5/78—Rollers or roller bearings with flutes or other integral surface characteristics

Definitions

  • the present invention relates to a detaching roller for a combing machine for textile processing.
  • the fibre carding is performed by carding machines after which the fibre appears in the form of a web.
  • the web or lap After processing by a lap winder where necessary, during which various separate webs are combined to form a lap, the web or lap is combed by a combing machine so as to produce a web in which the fibres are extremely parallel and clean.
  • the tearing rollers are subject to acceleration peaks to the order of tens of thousands of rad/s 2 and their stopping and starting is particularly wearing on the drive and command devices of the machine.
  • the motorised detaching roller positioned at the bottom, has a scored surface and is made from a metal material; at the top rather an idle rubber pressure roller is positioned.
  • the motorised tearing rollers are joined to form a single bar, driven by a single drive mechanism.
  • the purpose of the present invention is to make a detaching roller for a combing machine which overcomes the problems described above even more effectively.
  • reference numeral 1 globally denotes a combing head of a combing machine on a textile processing line.
  • the combing head 1 comprises, for example, a pincer 2 provided with a lower jaw 4 and an upper jaw 6, and a feeder roller 8.
  • the combing head 1 comprises a circular comb 10, fitted with a circular segment 12, and a rectilinear comb 14.
  • the head 1 Downstream of the rectilinear comb, the head 1 comprises at least one detaching roller 100 and a respective pressure roller 98, pressure coupled to the same.
  • the detaching roller 100 extends along a rotation axis X and comprises an active portion 102, destined for contact with the active portion of the respective pressure roller.
  • the lateral surface of the active portion 102 is scored, that is provided with ridges protruding from the surface.
  • the scoring presents a helical pattern.
  • the direction is straight, that is to say axial.
  • the detaching roller 100 is scored by cold rolling and subsequently ground on the ridges to the outer diameter of the roller.
  • the active portion 102 comprises, in turn, two portions of extremity, having a slightly conical surface, and a central portion, positioned between the portions of extremity, having a cylindrical shape.
  • the active portion 102 of the detaching roller 100 is solid, in other words without an internal through cavity, and is made from lightweight metal material, in other words a metal material having a density of 5 Kg/dm 3 or less, within the normal measurement tolerance, for example chosen from the group of aluminium and its alloys (2.7 - 2.8 Kg/dm 3 ), titanium and its alloys (4.5 - 4.4 Kg/dm 3 ), magnesium and its alloys (1.7 - 1.8 Kg/dm 3 ).
  • a composition of an alloy EN AW 7075 comprises (in % weight): 0.18 - 0.28 Cr; 1.2 - 2 Cu; 0.5 max Fe; 2.1 - 2.9 Mg; 0.3 max Mn; 0.4 max Si; 0.2 max Ti; 5.1 - 6.1 Zn.
  • titanium alloys preferred for the present invention is the alloy called TiA16V4 (standard UNI 10221), containing 6% aluminium and 4% vanadium.
  • the alloy TiA16V4 comprises: 0.05 max N; 0.20 max O; 0.015 max H; 0.10 max C; 0.40 max Fe; 5.5 - 6.75 Al; 3.5 - 4.50 V.
  • titanium alloy TiAl5Sn2,5, containing 5% aluminium and 2.5% tin is also preferred.
  • magnesium alloys preferred for the present invention are:
  • magnesium alloys are WE54A, ZK61A or AZ91D.
  • the active portion of the detaching roller made from a lightweight metal material is mechanically processed or thermally treated to improve the mechanical properties.
  • the active portion of the detaching roller is made from an aluminium alloy which has undergone a cold metal forming after annealing (or after hot metal forming) or a combination of cold metal forming and partial annealing or stabilising annealing to achieve the desired mechanical properties.
  • the active portion of the detaching roller is made from a series 2 (copper) or 3 (manganese) or 5 (magnesium) or 6 (Magnesium and silicon) or 7 (zinc), aluminium alloy in the hardened state, with a hardening index of H1 to H4 (according to standard EN 515), that is hardened only, hardened and partially annealed, hardened and stabilised, hardened and lacquered or painted.
  • the active portion of the detaching roller is made from an aluminium alloy which has undergone heat solubilisation treatment, with or without supplementary hardening, to produce stable metal states.
  • the active portion of the detaching roller is made from an aluminium alloy thermally treated according to a treatment Tx, with x being variable from 1 to 9 (according to standard EN 515), such as EN AW 7075 T6 or T5, EN AW 7175 T66, EN AW 7039 T64.
  • the active portion of the detaching roller is made from a quenched and tempered titanium alloy.
  • the active portion of the detaching roller is made from thermally treated magnesium alloy.
  • the active portion of the detaching roller is made from a solubilised and artificially aged magnesium alloy, such as alloy ZK60A-T6 or T5, or AZ80A-T5.
  • the active portion of the detaching roller is made from a lightweight metal material subjected to a further hardening and/or surface protection treatment.
  • the active portion of the detaching roller is made from an aluminium alloy, a titanium alloy (for example, the titanium alloy called TiHard) or a magnesium alloy, subjected to further anodic oxidation, also called anodisation (UNI 7796 for aluminium alloys), in other words an electrochemical process by means of which a protective layer forms on the surface of the active portion.
  • a titanium alloy for example, the titanium alloy called TiHard
  • a magnesium alloy subjected to further anodic oxidation, also called anodisation (UNI 7796 for aluminium alloys), in other words an electrochemical process by means of which a protective layer forms on the surface of the active portion.
  • the further surface hardening or protection treatment is able to achieve a surface hardness of 400 HV or more.
  • the active portion of the detaching roller made from aluminium alloy is subjected further to a hardening and protection procedure, for example consisting of an electrolytic coating of hard chrome in thicknesses for functional applications, for example an anodisation as per ISO 6158.
  • a hardening and protection procedure for example consisting of an electrolytic coating of hard chrome in thicknesses for functional applications, for example an anodisation as per ISO 6158.
  • the treatment is such that the aluminium alloy which the active portion is composed of presents:
  • the active portion of the detaching roller made from aluminium alloy is further subjected, for example, to a hardening and protection procedure consisting of an electrochemical coating with transformation of the surface into a ceramic layer (nano-ceramic processing).
  • the treatment is such that the aluminium alloy which the active portion is composed of presents:
  • the active portion of the detaching roller made from aluminium alloy is further subjected, for example, to a hardening and protection procedure consisting of a surface plasma coating of aluminium or magnesium oxide.
  • the active portion of the detaching roller made from aluminium alloy is further subjected, for example, to a hardening and protection procedure consisting of anodisation with impregnation of particles of PTFE.
  • the active portion of the detaching roller made from aluminium alloy or titanium alloy is further subjected, for example, to a hardening and protection procedure consisting of a self-catalysing coating of nickel-phosphorus according to ISO 4527.
  • the active portion of the detaching roller made from aluminium alloy and coated is further subjected, for example, to a thermal treatment so as to increase the hardness of the coating, for example so as to limit the maximum temperature of the treatment to 160°C for a long period of treatment, for example longer than 8 hours, preferably longer than 10 hours, preferably of 12 hours.
  • the treatment is such that the aluminium alloy or titanium alloy which the active portion is composed of presents:
  • the active portion of the detaching roller made from aluminium alloy or titanium alloy further subjected to a self catalysing coating of nickel provides for the deposit of chemical nickel with encapsulated particles of PTFE or silicon carbide or other ceramic powders or hard materials.
  • the active portion of the detaching roller is made from titanium alloy further subjected to a hardening and protection process consisting of the physical deposit (PVD) of titanium nitrides or in anodisation and laser treatment with the formation of titanium nitrides.
  • PVD physical deposit
  • the treatment is such that the titanium alloy presents:
  • the active portion of the detaching roller made from magnesium alloy is further subjected, for example, to a hardening and/or surface protection process consisting of anodisation able to transform the surfaces of the magnesium alloy into a complex ceramic matrix, for example transforming it into a hard and dense ceramic oxide (spinel or MgAl 2 O 4 ).
  • a hardening and/or surface protection process consisting of anodisation able to transform the surfaces of the magnesium alloy into a complex ceramic matrix, for example transforming it into a hard and dense ceramic oxide (spinel or MgAl 2 O 4 ).
  • Keronite ® such procedure is known as Keronite ® .
  • Mag-Oxide ® or Tagnite ® Further procedures which may be used are called Mag-Oxide ® or Tagnite ® .
  • the hardening treatment which the magnesium alloy is subjected to is such that the alloy presents:
  • the detaching roller 100 comprises, in addition, lateral ends 110, axially flanking the active portion 102, for example smooth.
  • the lateral ends 110 are in one piece with the active portion 102 and are made together with it according to the invention methods described above.
  • one of said ends 110 is female, that is has an internal cavity 112, and the other end 110 is male, for coupling to a further detaching roller, axially flanking it, to form a bar.
  • the detaching roller 100 comprises a bush 120, coupled to one of the lateral ends 110 to support the detaching roller in rotation.
  • the bush 120 is in metal material, for example in steel, for example of the type C48 (according to standard UNI 7847), surface hardened, for example induction tempered.
  • the bush 120 is made from tempered and hardened steel 100Cr6.
  • the bush is glued to the extremity of the active portion 102 or to the lateral end 110 ( figure 2 ).
  • the end 110 thereby comprises a support section 113 destined to support the bush 110; said support section 113 presents a processed surface furnished, for example with peaks and valleys, to facilitate the action of the adhesive ( figure 3 ).
  • the surface is processed so as to form a plurality of circumferential ridges 114 positioned in axial succession, so that the glue positions itself in the valleys between them.
  • the bush 120 is screwed to the extremity of the active portion 102 or to the lateral end 110.
  • the bush is fitted to the extremity of the active portion 102 or to the lateral end 110.
  • the bush is applied to the extremity of the active portion 102 or to the lateral end 110 and subsequently subjected to a further finishing process together with it to ensure that it is coaxial with the active portion of the detaching roller.
  • the roller has a male end 130 and a female end 140.
  • the male end 130 has in succession, from the extremity towards the inner part of the roller, a threaded section 132, a relief groove 134 for the threading and a guide section 136, terminating before the bush 120.
  • the threaded section 132 and the relief groove 134 are subjected to mechanical processing to create a state of generalised compression, and improve the resistance of the part.
  • the threaded section 132 and the relief groove 134 are subjected to shot blasting to improve fatigue resistance as per UNI 5394-72 (e.g. with shots 63/125 ⁇ m, intensity Almen 4.5N degrees and 100% cover) or by cold lamination with plastic deformation of the material (rolling).
  • the female end 140 has an inner cavity 142, containing, from the outside inwards, a guide section 144, a relief groove 146 and a threaded section 148.
  • the threaded section 148 is subjected to mechanical processing to create a state of generalised compression to improve the fatigue resistance of the part.
  • the threaded section 148 is made by cold lamination with plastic deformation of the material (rolling).
  • both ends 110 are female, in other words both present an internal cavity 142 ( figure 4 ).
  • a hub 210 is provided, inserted at one extremity and at the other in the cavity 142 of the two rollers 100.
  • the hub 210 is screwed to the extremity in the cavities 142 of the tearing rollers.
  • the hub 210 is made from a material presenting greater resistance, for example resistance to fatigue or resistance to breakage, than the material which the active portion 102 is made from.
  • the hub 210 is made from steel, for example a special steel, for example 42CrMo4S steel (as per UNI EN 10277-4).
  • the hub 210 is made from steel having a tensile strength (Rm) of 600 - 1300 MPa, preferably 1000 - 1200 MPa; for example the hub 210 is made from steel with a proportionality deviation limit (Rp0.2) of 700 - 800 MPa, preferably 750 MPa.
  • Rm tensile strength
  • Rp0.2 proportionality deviation limit
  • the hub 210 has, in succession from the extremity inwards, a threaded section, a relief groove for the threading and a guide section, in which the threaded section and the relief groove are subjected to mechanical processing to create a state of generalised compression, for example, shot blasting, or are made by cold lamination with plastic deformation (rolling).
  • a state of generalised compression for example, shot blasting, or are made by cold lamination with plastic deformation (rolling).
  • the hub 210 comprises a support section 212, between the extremities of the two tearing rollers 100, which supports the bush 120.
  • the detaching roller described above makes it possible to considerably reduce the inertial load, with a significant reduction of the power required to operate the combing machine and of the vibratory phenomena.
  • the active solid portion makes it possible to perform a simplified manufacturing process.
  • the bushes applied ensure improved reliability, resisting wear from rolling.
  • the hardening treatments are performed on the active portion already formed, thereby avoiding complicated processing.
  • the thermal treatments are performed on the coatings so as not to jeopardise the mechanical properties of the base material and the thermal treatment applied to it, for example so as not to jeopardise the properties of the treated T6 alloy AW 7075.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (20)

  1. Abreißwalze (100) für eine Kämmmaschine (1), umfassend einen aktiven festen Teil (102), welcher für den Kontakt mit dem aktiven Teil einer entsprechenden Andruckwalze bestimmt ist, wobei der aktive feste Teil (102) aus einem Leichtmetallmaterial hergestellt ist, welches optional einer weiteren Härtungs- und/oder Oberflächenschutzbehandlung unterzogen ist,
    und wobei das Leichtmetallmaterial eine Dichte von 5 kg/dm3 oder darunter hat.
  2. Abreißwalze nach Anspruch 1, wobei das Leichtmetallmaterial aus der Gruppe bestehend aus Aluminium und seinen Legierungen, Titan und seinen Legierungen, Magnesium und seinen Legierungen gewählt ist.
  3. Abreißwalze nach Anspruch 2, wobei das Leichtmetallmaterial eine Kaltmetallformung nach Anlassen oder eine Kombination von Kaltmetallformung und teilweisem Anlassen oder stabilisierendem Anlassen durchlaufen hat.
  4. Abreißwalze nach Anspruch 2, wobei das Leichtmetallmaterial eine Wärmebehandlung der Solubilisierung mit oder ohne zusätzliches Härten, durchlaufen hat, um stabile Metallzustände zu erzeugen.
  5. Abreißwalze nach einem der vorhergehenden Ansprüche, wobei das Leichtmetallmaterial einer Härtungs- und/oder Oberflächenschutzbehandlung unterzogen worden ist,
    wobei die Härtungs- und/oder Oberflächenschutzbehandlung eine Oberflächenhärte von 400 HV oder darüber erzeugt.
  6. Abreißwalze nach Anspruch 5, wobei die Härtungs- und/oder Oberflächenschutzbehandlung
    eine elektrolytische Hartchrom-Beschichtung;
    eine elektrochemische Beschichtung mit Überführung der Oberfläche in eine Keramikschicht; oder
    eine Oberflächenplasmabeschichtung aus Aluminium- oder Magnesiumoxid;
    oder
    Anodisierung mit Imprägnierung aus PTFE-Teilchen; oder
    eine selbstkatalysierende Beschichtung aus Nickel-Phosphor ist, wenn nötig mit Ablagerung von chemischem Nickel mit eingeschlossenen PTFE-Teilchen oder Siliziumcarbid oder anderen keramischen Pulvern oder harten Materialien, oder wenn nötig mit Wärmebehandlung, um die Härte der Beschichtung zu erhöhen;
    oder
    eine physikalische Ablagerung von Titannitriden; oder
    eine Anodisieriung und Laserbehandlung mit Bildung von Titannitrid; oder eine Anodisierung mit Bildung von hartem Keramikoxid, wie beispielsweise Spinell oder MgAlO, beispielsweise der Art von Mag-Oxide®, Tagnite® oder Keronite® ist.
  7. Abreißwalze nach einem der vorhergehenden Ansprüche, wobei der aktive Teil (102) eine, beispielsweise spiralförmige, Oberflächenrille hat.
  8. Walze nach einem der vorhergehenden Ansprüche, umfassend ein Paar seitlicher Enden (110), welche an einen und dem anderen äußersten Ende des aktiven Teils (102) axial angegrenzt angeordnet sind.
  9. Walze nach Anspruch 8,
    wobei zumindest ein Ende ein aufzunehmendes Ende (130) ist und von dem äußersten Ende der Walze nach innen nacheinander einen Gewindeabschnitt (132), einen Freistich (134) für das Gewinde und einen Führungsabschnitt (136) hat, wobei der Gewindeabschnitt (132) und der Freistich (134) einer mechanischen Bearbeitung, beispielsweise einer Abstrahlung, unterzogen worden sind, um einen Zustand allgemeiner Verdichtung zu erzeugen, um die Ermüdungsbeständigkeit des Teils zu verbessern, oder durch Kaltlaminieren mit plastischer Verformung hergestellt worden sind.
  10. Walze nach Anspruch 8 oder 9,
    wobei zumindest ein Ende ein aufnehmendes Ende (140) ist und einen inneren Hohlraum (142) hat, in welchem von außen nach innen ein Führungsabschnitt (144), ein Freistich (146) und ein Gewindeabschnitt (148) vorhanden sind, wobei der Gewindeabschnitt (148) und der Freistich (146) einer mechanischen Bearbeitung, unterzogen worden sind, um einen Zustand allgemeiner Verdichtung zu erzeugen, um die Ermüdungsbeständigkeit des Teils zu verbessern, beispielsweise sind sie durch Kaltwalzen hergestellt.
  11. Abreißwalze nach einem der Ansprüche 8 bis 10,
    wobei die Enden (110) einstückig mit dem aktiven Teil (102) sind.
  12. Abreißwalze nach einem der vorhergehenden Ansprüche, umfassend eine an einem axialen Ende angeordnete Buchse (120), beispielsweise aus Stahl, welcher zum Erhalten einer erhöhten Oberflächenhärte behandelt worden ist.
  13. Walze nach Anspruch 12,
    wobei die Buchse beispielsweise an eine Oberfläche eines mit Erhebungen und Vertiefungen ausgestatteten Halteabschnitts geklebt ist.
  14. Kämmmaschine für eine Textilstraße, umfassend zumindest eine Abreißwalze nach einem der vorhergehenden Ansprüche.
  15. Schiene (200), umfassend mehrere Abreißwalzen, welche nach einem der Ansprüche 1 bis 13 ausgebildet sind, welche axial benachbart und miteinander verbunden sind.
  16. Schiene nach Anspruch 15, wenn von Anspruch 8 abhängig, wobei beide Enden (110) der bei der Schiene (200) vorhandenen Abreißwalzen aufnehmend sind und einen inneren Hohlraum (142) aufweisen, und wobei die Schiene (200) eine Nabe (210) umfasst, welche an einem und dem anderen äußersten Ende in den inneren Hohlraum (142) der Enden zweier benachbarter Abreißwalzen eingeführt ist, um die beiden benachbarten Abreißwalzen (100) zu verbinden.
  17. Schiene nach Anspruch 16,
    wobei die Nabe (210) aus Material besteht, welches eine größere Ermüdungsbeständigkeit oder Zugfestigkeit als das Material hat, aus dem der aktive Teil (102) besteht.
  18. Schiene nach Anspruch 16 oder 17,
    wobei die Nabe (210) von dem äußersten Ende nach innen nacheinander einen Gewindeabschnitt, einen Freistich für das Gewinde und einen Führungsabschnitt aufweist, wobei der Gewindeabschnitt und der Freistich einer mechanischen Bearbeitung, beispielsweise Abstrahlen, unterzogen sind, um einen Zustand allgemeiner Verdichtung zu erzeugen, um die Ermüdungsbeständigkeit des Teils zu verbessern, oder durch Kaltlaminieren mit plastischer Verformung hergestellt sind.
  19. Schiene nach einem der Ansprüche 16 bis 18,
    wobei die Nabe (120) einen Haltabschnitt (212) umfasst, welcher zwischen den äußersten Enden der nebeneinander angeordneten Abreißwalzen eine Buchse (120) hält.
  20. Kämmgruppe umfassend eine Schiene (200) nach einem der Ansprüche 15 bis 19.
EP10160701.8A 2009-04-28 2010-04-22 Abreiswalze für eine Kämmmaschine Active EP2246464B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBS2009A000077A IT1393626B1 (it) 2009-04-28 2009-04-28 Cilindro strappatore per pettinatrice

Publications (2)

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EP2246464A1 EP2246464A1 (de) 2010-11-03
EP2246464B1 true EP2246464B1 (de) 2016-12-28

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EP (1) EP2246464B1 (de)
CN (1) CN101876100B (de)
BR (1) BRPI1001386B1 (de)
IT (1) IT1393626B1 (de)

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CN102127822B (zh) * 2011-03-07 2012-08-22 南通醋酸纤维有限公司 丝束导向罗拉及其用途
KR101064646B1 (ko) * 2011-04-19 2011-09-15 주식회사동서산업롤 마그네슘합금 파이프를 이용한 롤러 및 롤러 제조방법
CN102994826A (zh) * 2012-10-31 2013-03-27 无锡市祁达纺织印染有限公司 一种纺织机
DE102013007432A1 (de) * 2013-04-30 2014-10-30 Saurer Germany Gmbh & Co. Kg Faserführendes Textilmaschinen-Kunststoffteil, Textilmaschine mit faserführenden Funktionsbauteilen, Verfahren zum Herstellen eines faserführenden Textilmaschinen-Funktionsbauteils und Verwendung eines Kunststoffkörpers
IT202000026608A1 (it) * 2020-11-09 2022-05-09 Skf Ab Unita’ cuscinetto in acciaio a basso teneore di carbonio
DE102021126664A1 (de) * 2021-10-14 2023-04-20 Trützschler Group SE Kämmmaschine

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CH680371A5 (de) * 1989-12-12 1992-08-14 Rieter Ag Maschf
DE19542804A1 (de) * 1995-11-16 1997-05-22 Rieter Ag Maschf Druckwalze
CN1090255C (zh) * 1996-03-29 2002-09-04 里特机械公司 精梳机的分离－和接合装置
DE502005004034D1 (de) * 2004-08-05 2008-06-19 Rieter Ag Maschf Kämmmaschine.
ITMI20050975A1 (it) * 2005-05-26 2006-11-27 Marzoli Spa Cilindro strappatore per macchine di pettinatura di fibre tessili
EP1936013B1 (de) * 2006-12-21 2009-09-30 Maschinenfabrik Rieter Ag Abreisswalze für eine Kämmmaschine

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Publication number Publication date
BRPI1001386B1 (pt) 2020-09-24
EP2246464A1 (de) 2010-11-03
CN101876100A (zh) 2010-11-03
CN101876100B (zh) 2015-11-25
ITBS20090077A1 (it) 2010-10-29
BRPI1001386A2 (pt) 2011-07-05
IT1393626B1 (it) 2012-05-08

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