EP2246464A1 - Cylindre détacheur d'une peigneuse - Google Patents

Cylindre détacheur d'une peigneuse Download PDF

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Publication number
EP2246464A1
EP2246464A1 EP10160701A EP10160701A EP2246464A1 EP 2246464 A1 EP2246464 A1 EP 2246464A1 EP 10160701 A EP10160701 A EP 10160701A EP 10160701 A EP10160701 A EP 10160701A EP 2246464 A1 EP2246464 A1 EP 2246464A1
Authority
EP
European Patent Office
Prior art keywords
detaching roller
roller according
active portion
detaching
metal material
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.)
Granted
Application number
EP10160701A
Other languages
German (de)
English (en)
Other versions
EP2246464B1 (fr
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
Original Assignee
Marzoli Combing & Flyer SpA
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 Marzoli Combing & Flyer SpA filed Critical Marzoli Combing & Flyer SpA
Publication of EP2246464A1 publication Critical patent/EP2246464A1/fr
Application granted granted Critical
Publication of EP2246464B1 publication Critical patent/EP2246464B1/fr
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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
    • 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 of 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.
  • FIG. 1 shows a schematic view of the combing head of a combing machine, comprising a detaching roller according to the present invention
  • FIG. 2 shows a perspective view of a detaching roller according to the present invention, in one embodiment
  • figure 2a shows a view in section of the detaching roller in figure 2 ;
  • FIG. 3 shows a perspective view of the detaching roller in figure 2 , without the bush;
  • FIG. 4 shows a section of a portion of the detaching roller according to the present invention, according to a further embodiment.
  • 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 TiAl6V4 (standard UNI 10221), containing 6% aluminium and 4% vanadium.
  • the alloy TiAl6V4 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:
  • - AZ80A (ASM Handbook), comprising 89. 04 - 91.88 Mg; 7.8 - 9.2 Al; 0.1 max Si; 0.12 - 0.5 Mn; 0.005 max Fe; 0.005 max Ni; 0.05 max Cu; 0.2 - 0.8 Zn.
  • 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 AZ80AT5.
  • 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 ® o Tagnite ® Further procedures which may be used are called Mag-Oxide ® o 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.
  • the active portion of the detaching roller is hollow on the inside, in other words is provided with inner compartments for lightening it, such as a single through compartment between the two lateral ends, positioned axially at one extremity and at the other of the central portion.
  • Such active portion is made according to the structural variations, procedures and materials described above for the variation with the solid section.
  • the active portion and/or the lateral ends are made in carbon fibre.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP10160701.8A 2009-04-28 2010-04-22 Cylindre détacheur pour une peigneuse Active EP2246464B1 (fr)

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)

Publication Number Publication Date
EP2246464A1 true EP2246464A1 (fr) 2010-11-03
EP2246464B1 EP2246464B1 (fr) 2016-12-28

Family

ID=41151831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10160701.8A Active EP2246464B1 (fr) 2009-04-28 2010-04-22 Cylindre détacheur pour une peigneuse

Country Status (4)

Country Link
EP (1) EP2246464B1 (fr)
CN (1) CN101876100B (fr)
BR (1) BRPI1001386B1 (fr)
IT (1) IT1393626B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2023061690A1 (fr) * 2021-10-14 2023-04-20 Trützschler Group SE Peigneuse

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4039050A1 (de) * 1989-12-12 1991-06-20 Rieter Ag Maschf Abreisszylinderaggregat fuer eine kaemmaschine
DE19542804A1 (de) * 1995-11-16 1997-05-22 Rieter Ag Maschf Druckwalze
EP1726692A1 (fr) 2005-05-26 2006-11-29 Marzoli S.p.A. Cylindre arracheur pour une machine à peigner
EP1936013A1 (fr) * 2006-12-21 2008-06-25 Maschinenfabrik Rieter AG Cylindre arracheur pour une peigneuse

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP4814233B2 (ja) * 2004-08-05 2011-11-16 マシーネンファブリク リーター アクチェンゲゼルシャフト コーミング機械

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4039050A1 (de) * 1989-12-12 1991-06-20 Rieter Ag Maschf Abreisszylinderaggregat fuer eine kaemmaschine
DE19542804A1 (de) * 1995-11-16 1997-05-22 Rieter Ag Maschf Druckwalze
EP1726692A1 (fr) 2005-05-26 2006-11-29 Marzoli S.p.A. Cylindre arracheur pour une machine à peigner
EP1936013A1 (fr) * 2006-12-21 2008-06-25 Maschinenfabrik Rieter AG Cylindre arracheur pour une peigneuse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2023061690A1 (fr) * 2021-10-14 2023-04-20 Trützschler Group SE Peigneuse

Also Published As

Publication number Publication date
IT1393626B1 (it) 2012-05-08
EP2246464B1 (fr) 2016-12-28
BRPI1001386A2 (pt) 2011-07-05
CN101876100B (zh) 2015-11-25
CN101876100A (zh) 2010-11-03
BRPI1001386B1 (pt) 2020-09-24
ITBS20090077A1 (it) 2010-10-29

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