EP0497745A1 - Dispositif de refroidissement d'un ensemble de chapeaux dans une carde - Google Patents

Dispositif de refroidissement d'un ensemble de chapeaux dans une carde Download PDF

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Publication number
EP0497745A1
EP0497745A1 EP92830031A EP92830031A EP0497745A1 EP 0497745 A1 EP0497745 A1 EP 0497745A1 EP 92830031 A EP92830031 A EP 92830031A EP 92830031 A EP92830031 A EP 92830031A EP 0497745 A1 EP0497745 A1 EP 0497745A1
Authority
EP
European Patent Office
Prior art keywords
flats
card
distributing
cooling
hood
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.)
Withdrawn
Application number
EP92830031A
Other languages
German (de)
English (en)
Inventor
Marcello Giuliani
Umberto Gerin
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.)
Individual
Original Assignee
Individual
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
Priority claimed from ITUD910012A external-priority patent/IT1248123B/it
Priority claimed from ITUD910010A external-priority patent/IT1248121B/it
Application filed by Individual filed Critical Individual
Publication of EP0497745A1 publication Critical patent/EP0497745A1/fr
Withdrawn legal-status Critical Current

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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
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
    • D01G15/24—Flats or like members
    • 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
    • D01G15/32—Framework; Casings; Coverings

Definitions

  • the present invention refers to an improvement in carding machines in order to create such localized environment conditions in the carding process or in the process for the preparation of the fibres to the spinning phase and, in particular, within the area of the flats, so as to favour the card-working of natural as well as artificial fibres.
  • the invention is advantageously applicable in case of natural fibres, especially cotton, which are contaminated by the so-called honey-dew, i.e. those sugary substances produced by the aphids and other insects.
  • Such honey-dew contaminated fibres are increasingly present in the agricultural habitat.
  • air is used in the regions where the fibres are tranferred from one member of the card to another, in the region where the fibres are parallelized and cleaned in correspondence of the flat assembly and in the regions where the impurities are discharged in cooperation with the lower grids of the machine.
  • the air at the working region of the flats goes through turbolent and laminar flows, and is subject to actions of compression and expansion as it is forced to flow through spaces delimited by members moving at high speed (about 100 km/h) at short distance from stationary, or nearly stationary elements; all this happens between walls made-up of clothings with card hooks of various density which project irregularly therefrom.
  • the fibres are subject to a straightening and parallelizing action, as well as to a cleaning action performed by the clothings provided on the drum in cooperation with those provided on the flats.
  • the object of the invention is to provide a card for natural fibres, and in particular for vegetable fibres, and for synthetic fibres as well, of the type comprising at least one drum the peripheral clothing of which cooperate with the clothings of flats which are provided along at least a portion of the peripheral development of the drum.
  • a card for natural fibres, and in particular for vegetable fibres, and for synthetic fibres as well of the type comprising at least one drum the peripheral clothing of which cooperate with the clothings of flats which are provided along at least a portion of the peripheral development of the drum.
  • at least one circuit for a cooling medium in order to keep the temperature of the clothings of the flats at relatively low values.
  • Fig. 1 shows diagrammatically the card with a stationary flat assembly 114 of the type disclosed in IT-A-9431 A/81.
  • the card according to the present invention is one having a stationary flat assembly 114 formed, in this case, by substantially trapezoidal flats 14 which cooperate over a substantial length with the periphery of the drum 13, the clothings of drum 13 and those borne by the flats 16 being brought to cooperate with each other in order to parallelize the fibres as desired.
  • the card of Fig. 1 is provided with a set of feeders 11, a collecting group 12, two drums 13, two intermediate groups 112 and 111 and the stationary flats 14.
  • Each stationary flat 14 carries a relevant clothing with suitable hooks which, as stated, cooperate with the hooks of the clothing provided on drum 13.
  • Such hood 10 has a distributing region 15E and a suction region 15U.
  • the air flow from the conduit 16 goes through the cooled or refrigerating battery 17, enters the distributing region 15E and, from this, goes to the suction region 15U.
  • the suction is performed by means known per se.
  • the cooler 17 may be of direct evaporation type or of cooled liquid circulation type, which is indifferent as far as the invention is concerned, both types being easily available and within the reach of any skilled in the art.
  • the hood may actually consist of a plurality of cooperating hoods, with a plurality of inlets and outlets in order to enhance the cooling effect and, at the same time, to allow a more accurate control of said cooling.
  • Fig. 2 shows, for,example, two cooperating hoods.
  • Each of said hoods is provided with an inlet 115E, 215E and an outlet 115U, 215U.
  • outlet 115U and the inlet 215E may be made to communicate by providing cleaning filters and/or further refrigerating batteries.
  • hood 10 must advantageously be adherent to the outer surface of the flats 14.
  • adhesion may be improved by spreading, between the hood 10 and the outer surface of flats 14, suitable plastic substances having high conductivity.
  • the outer surfaces of flats 14 make up the wall of hood 10.
  • the outer surface of the flats 14 may have thermal exchange-enhancing elements.
  • the refrigerating fluid may be a gas or a liquid.
  • such probes are inserted into suitable seats on flats 14 so as to measure the actual temperature of flats 14.
  • Figs. 3a and 3b show a cross-section of two stationary flats 14 having a modified profile.
  • Said stationary flats 14 having modified profile are provided with a plurality of axial conduits 20 which allow the transit of refrigerating fluid which suitably cools the connecting and driving elements and, by conduction, cools also the clothing 19 of flat 14 and the relevant hooks connected thereto.
  • the hood 10 cooperates directly with the outer wall of flat 14, bridge elements 110 being provided able to prevent any leakage of refrigerating fluid.
  • the bridge elements 110 are applied to the flats 14 by interposing an elastic layer.
  • the hood 10 is, in this case, made up of elements 26 which can be disconnected at 23 in correspondence of elastic layers.
  • said probes 18B are shown as inserted from one side, but they may be inserted also axially.
  • Fig. 4 shows a cooperation between the hood 10 and the axially-operated refrigerating system where the fluid is fed through the axial conduits 20 to the flats 14.
  • feeding conduits 21E and aspirating conduits 21U are provided which cooperate with the ends of flats 14.
  • Fig. 5 shows a modified embodiment wherein the cooling is provided by liquid refrigerating fluid which flows from the distributing conduit 22E via the axial conduits 20 to the collecting conduit 22U.
  • Fig. 6 diagrammatically shows a feasible card of the type having a mobile flat assembly.
  • the mobile flat assembly card illustrated herein is given only by way of example as further embodiments and types of cards may be provided to which the solution idea of the present invention may be applied.
  • the card considered as an example is one having a mobile flat assembly 315 carrying flats 316 which cooperate, over a substantial length, with the periphery of the drum 314, the clothings of drum 314 and those of flats 316 being brought to cooperate with each other in such a way as to parallelize the fibres as desired.
  • the card of Fig. 6 is provided with a fibres-supplying group 311, feeding means 312, a collecting cylinder 313, a drum 314 and a mobile flat assembly 315.
  • the feeding means 312 in this case, consist of three cylinders, but they may be one or more, or they may consist of a feeding table of known type.
  • the flats 316 are disposed substantially parallel to the axis of the drum 314 and annularly connected to each other.
  • Each of said flats 316 carries a clothing with suitable hooks which, as stated, cooperate with the hooks of the clothing provided on drum 314.
  • stripping rollers 317 located at any point of the free portion of the mobile flat assembly 315.
  • the card 310 shown in Fig. 6 is, in this case, encased by pad panels to sound-insulate it and, at the same time, to direct the suction and cleaning air flow as desired.
  • the card indicated herein by way of example is one provided with a mobile flat assembly 315, and it is on the basis of such exemplary card that the invention will be illustrated in the following description and with reference to the drawings.
  • Fig. 7 shows an enlarged sectional view, where the cooperation region of the mobile flat assembly 315 and relevant flats 316 with the large drum 314 is shown.
  • the mobile flat assembly 315 is covered by a distributing hood 320E bordering with a suction hood 320U.
  • the flow of air from the conduit 319 goes through the cooled or refrigerated battery 318, enters the distributing hood 320E and from the latter reaches the suction hood 320U through the filter 322.
  • the aspiration and blowing action is performed, in this case, by the fan 321 which directs the thus collected air-flow into the conduit 319.
  • a filter 322 shown by way of example as the only filter being present and directly positioned between the distributing hood 320E and the suction hood 320U, may be of replaceable type or of self-cleaning type, in order to recover any fibres likely to deposit thereon.
  • a shutter 323 may be provided to restore the desired volume of air possibly lost both through the always present dispersions and through the traditional suction system.
  • the cooler 318 may be of direct evaporation type or of cooled liquid circulation type, which is indifferent as far as the invention is concerned, both types being easily available and within the reach of any skilled in the art.
  • Fig. 8 shows a modified version of the embodiment of Fig. 7; in this modified embodiment the distributing hood 420E is in the route defined by the mobile flat assembly 315 and is provided with a plurality of holes and/or slits 324 which deliver incoming cold air inside the distributing hood 420E.
  • the cold air flowing through the holes and slits licks both the rear part of the mobile flat assembly 315 and directly the flats 316, as well as the joining and driving elements of said flats 316.
  • said flats 316 and their linking elements are cooled and they transfer the cold by conduction to the clothing provided on each flat 316 and, through it, to the hooks which must work the fibre.
  • the cold air flowing through the holes and slits licks the flats 316 and the mobile flat assembly 315 over the whole width thereof.
  • the relationship between the pressure of the cold air entering the distributing hood 420E and the dimension of the holes or slits 324 is such as to give rise to a predetermined speed of cold air impinging on the flats 316, thereby allowing the heat to be removed also by dynamic action.
  • Said cold air may be recovered by a suction hood 320U and a subsequent suction fan 321, or may be dispersed in the atmosphere.
  • Fig. 9 shows a further modified embodiment which provides, by means of the distributing hood 520E, for delivering-jets of cold air onto at least a portion of the periphery of the mobile flat assembly 315 and, in particular, onto at least the portion just before the length in which the mobile flat assembly 315 cooperates with the drum 314, said jets of cold air hitting directly the hooks and the clothing and transmitting by conduction the cold to the flats 316 which thus act as a thermal accumulator.
  • the cold air may be dispersed or be aspirated through a suction hood 320U which cooperates with a suction fan 321.
  • the air may be either dispersed or brought in circulation to a partial or total extent.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
EP92830031A 1991-01-28 1992-01-28 Dispositif de refroidissement d'un ensemble de chapeaux dans une carde Withdrawn EP0497745A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITUD910012 1991-01-28
ITUD910010 1991-01-28
ITUD910012A IT1248123B (it) 1991-01-28 1991-01-28 Dispositivo di raffreddamento cappelliera mobile in una carda
ITUD910010A IT1248121B (it) 1991-01-28 1991-01-28 Dispositivo di raffreddamento cappelliera fissa in una carda

Publications (1)

Publication Number Publication Date
EP0497745A1 true EP0497745A1 (fr) 1992-08-05

Family

ID=26332481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92830031A Withdrawn EP0497745A1 (fr) 1991-01-28 1992-01-28 Dispositif de refroidissement d'un ensemble de chapeaux dans une carde

Country Status (1)

Country Link
EP (1) EP0497745A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608686A1 (fr) * 1993-01-26 1994-08-03 Chemnitzer Spinnereimaschinenbau GmbH Machine de cardage à chapeaux
EP0866153A1 (fr) * 1997-02-24 1998-09-23 Maschinenfabrik Rieter Ag Machine de cardage à haute rendement
US5974628A (en) * 1996-03-25 1999-11-02 Giuliani; Marcello Card for textile fibers with carding cylinders cooperating in series
EP1031650A2 (fr) * 1999-02-22 2000-08-30 Maschinenfabrik Rieter Ag Machine de cardage
EP0989213B2 (fr) † 1998-09-04 2006-03-29 Maschinenfabrik Rieter Ag Machine de cardage respectivement machine de cardage dite laine
GB2486796A (en) * 2010-12-21 2012-06-27 Truetzschler Gmbh & Co Kg Apparatus on a flat card or roller card in which there is arranged at least one working element and/or cover element
CN103255507A (zh) * 2012-02-16 2013-08-21 特鲁菲舍尔股份有限公司及两合公司 盖板式或罗拉式梳理机上布置有至少一个工作元件和/或盖元件的装置
CN103384733A (zh) * 2011-02-25 2013-11-06 恒天(奥地利)控股有限公司 具有冷却系统的、用于纤维开松机特别是梳理机的工作组件
CN105063812A (zh) * 2015-07-21 2015-11-18 杨建军 绒毛低温联合分梳装置及分梳工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH390109A (de) * 1961-01-11 1965-03-31 Rieter Ag Maschf Radial luftdurchströmte, perforierte Trommel für Spinnereimaschinen
EP0077166A1 (fr) * 1981-10-10 1983-04-20 Carding Specialists (Canada) Limited Machine à carder
EP0167722A1 (fr) * 1984-06-14 1986-01-15 Ramisch Kleinewefers GmbH Machine à grande vitesse pour carder des fibres thermoplastiques
EP0431485A1 (fr) * 1989-12-06 1991-06-12 Maschinenfabrik Rieter Ag Système de refroidissement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH390109A (de) * 1961-01-11 1965-03-31 Rieter Ag Maschf Radial luftdurchströmte, perforierte Trommel für Spinnereimaschinen
EP0077166A1 (fr) * 1981-10-10 1983-04-20 Carding Specialists (Canada) Limited Machine à carder
EP0167722A1 (fr) * 1984-06-14 1986-01-15 Ramisch Kleinewefers GmbH Machine à grande vitesse pour carder des fibres thermoplastiques
EP0431485A1 (fr) * 1989-12-06 1991-06-12 Maschinenfabrik Rieter Ag Système de refroidissement

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608686A1 (fr) * 1993-01-26 1994-08-03 Chemnitzer Spinnereimaschinenbau GmbH Machine de cardage à chapeaux
US5974628A (en) * 1996-03-25 1999-11-02 Giuliani; Marcello Card for textile fibers with carding cylinders cooperating in series
US6219885B1 (en) 1997-02-24 2001-04-24 Maschinenfabrik Rieter Ag High performance card
EP0866153A1 (fr) * 1997-02-24 1998-09-23 Maschinenfabrik Rieter Ag Machine de cardage à haute rendement
EP0989213B2 (fr) † 1998-09-04 2006-03-29 Maschinenfabrik Rieter Ag Machine de cardage respectivement machine de cardage dite laine
EP1031650A2 (fr) * 1999-02-22 2000-08-30 Maschinenfabrik Rieter Ag Machine de cardage
EP1031650A3 (fr) * 1999-02-22 2001-03-07 Maschinenfabrik Rieter Ag Machine de cardage
GB2486796A (en) * 2010-12-21 2012-06-27 Truetzschler Gmbh & Co Kg Apparatus on a flat card or roller card in which there is arranged at least one working element and/or cover element
CN103384733A (zh) * 2011-02-25 2013-11-06 恒天(奥地利)控股有限公司 具有冷却系统的、用于纤维开松机特别是梳理机的工作组件
CN103384733B (zh) * 2011-02-25 2016-11-09 恒天(奥地利)控股有限公司 用于开松纤维和/或准备梳理的机器的工作组件
CN103255507A (zh) * 2012-02-16 2013-08-21 特鲁菲舍尔股份有限公司及两合公司 盖板式或罗拉式梳理机上布置有至少一个工作元件和/或盖元件的装置
CN103255507B (zh) * 2012-02-16 2016-11-16 特鲁菲舍尔股份有限公司及两合公司 盖板式或罗拉式梳理机上布置有至少一个工作元件的装置
CN105063812A (zh) * 2015-07-21 2015-11-18 杨建军 绒毛低温联合分梳装置及分梳工艺
CN105063812B (zh) * 2015-07-21 2018-08-07 杨建军 绒毛低温联合分梳装置及分梳工艺

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