EP0622480A1 - Procédé de dosage des quantités préalablement déterminées de flocons de fibres de qualité et/ou de couleur différente - Google Patents

Procédé de dosage des quantités préalablement déterminées de flocons de fibres de qualité et/ou de couleur différente Download PDF

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Publication number
EP0622480A1
EP0622480A1 EP94810206A EP94810206A EP0622480A1 EP 0622480 A1 EP0622480 A1 EP 0622480A1 EP 94810206 A EP94810206 A EP 94810206A EP 94810206 A EP94810206 A EP 94810206A EP 0622480 A1 EP0622480 A1 EP 0622480A1
Authority
EP
European Patent Office
Prior art keywords
production
mixture
production rate
fiber flakes
changed
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Withdrawn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
EP94810206A
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German (de)
English (en)
Inventor
Robert Demuth
Jürg Faas
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 EP0622480A1 publication Critical patent/EP0622480A1/fr
Withdrawn legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G13/00—Mixing, e.g. blending, fibres; Mixing non-fibrous materials with fibres

Definitions

  • the invention relates to a method for metering predetermined amounts of fiber flakes of different quality and / or color for the production of an inhomogeneous card sliver in a card.
  • the state of the art for the production of fancy yarn is that fiber material of different quality and color, such as animal hair, silk waste, viscose fibers, is added in the spinning preparation and a uniform and homogeneous card sliver is produced therefrom, which is then produced only in the final spinning process, such as ring spinning or rotor spinning, leads to a structured yarn.
  • fiber material of different quality and color such as animal hair, silk waste, viscose fibers
  • the object of the invention is to provide a method so that an inhomogeneous card sliver can be produced for further processing into a fancy yarn.
  • the invention has the essential advantage that a programmed irregularity in the metering of fiber flakes can be used in the mixing process for the production of a structurally and / or optically inhomogeneous card sliver and thus a very high degree of flexibility in operation is achieved. This creates completely new possibilities for manufacturers of fancy yarns. Such flexibility is particularly important in the fashion sector, where the changes and short-term currents are very large. Further advantages result from the description below. There, the invention is explained in more detail using an example shown in the drawings.
  • a mixing device according to DE-A-40 25 476 is shown.
  • the same reference numerals are used as in the description of this patent application.
  • the mixing device consists of a rotating conveyor belt 10 and three metering devices 12a, 12b and 12c of the same design, which are arranged in a row above the conveyor belt 10.
  • Each metering device 12a, 12b, 12c consists of a filling shaft 14 with a shop window 16 and two to three feed rollers 18, 20 arranged at the lower end of the shaft and an opening roller 22.
  • the flakes present in the filling shaft, the upper limit of which is indicated by 24, are from the feed rollers 18 and 20 rotating in the respective directions 26, 28 are detected and fed to the opening roller 22 through the conveying gap formed between these two rollers.
  • the latter rotates much faster than the feed rollers and removes flakes from the supplied flake cotton wool and feeds them through a channel 30 in the form of open, loose flakes 32 onto the upper run 34 of the conveyor belt.
  • the loose flake bundles 32.1 and 32.2 from the two further metering devices 12b and 12c are placed in layers on the first layer formed by the flake bundle 32 and guided with the upper run of the conveyor belt 34 in the direction of arrow 36 to the right side of the mixing device in FIG. 1.
  • a further rotating conveyor belt 38 which rotates in the direction of the arrow 40 and whose lower run 42 is inclined towards the upper run 34 of the conveyor belt 10 in the conveying direction 36.
  • a drive 23 with a control device 21 is also provided for the opening roller 22.
  • the drives are, for example, frequency-controlled electric motors.
  • the same drives and controls can also be provided for the feed rollers 18, 20 and for the opening roller 22 of the metering devices 12b, 12c.
  • Fig. 2 the control of the production of the flake bundle 32 is shown.
  • the ordinate shows the production P and the abscissa the time T.
  • the maximum production is indicated with P max , which is entered into the mixture within a time window T 1.
  • P max which is entered into the mixture within a time window T 1.
  • the production P is controlled either via the control 17 of the drive 19 of the feed rollers 18 and 20 or via the control 21 of the drive 23 of the opening roller 22, or via both controls 17 and 21.
  • FIG. 2b A further curve of the production control is shown in FIG. 2b.
  • the production rate ranges between a minimum production P min and a maximum production P max .
  • Production is in turn in time slots T1 and T2 controlled rectangular. This ensures that the flake stream or the flake bundle 32 never completely breaks off, but is added to the mixture with bead-like thickenings.
  • FIG. 3 Another way of controlling production is shown in FIG. 3.
  • the production P 'in Fig. 3a has a sinusoidal course, with a period T.
  • the production here moves between zero and a maximum production P max '. 3b, similar to FIG. 2b, shows a sinusoidal course of the production P with a minimal production P min '.
  • the controls 17 and / or 21 are controlled according to this production specification.
  • the control signals are not shown here, but are similar to the representation of the production P or P 'in FIGS. 2 and 3. It goes without saying that the curves shown serve only as an example and can easily be replaced by others.
  • metering devices 12a, 12b, 12c simultaneously add fiber flakes or fiber bundles 32, 32.1, 32.2 to the mixture with a regularly changing production, it is almost necessary to control the controls of the drives via a computer. Care is taken to ensure that the production peaks of the individual modules or metering devices 12a, 12b, 12c do not coincide but are out of phase with one another.
  • the operator can, for example, indicate to the computer the degree of homogeneity of the card sliver to be produced, on the basis of which information the drives 19 and / or 23 are controlled so that a percentage fluctuation of the card sliver takes place according to the set degree of homogeneity. 100% homogeneity corresponds to the normal metering of the mixing device, ie this results in a homogeneous card sliver, as is known from DE-A-4025476 specified previously.
  • a sinusoidal or rectangular signal can also be fed to a random generator, which then changes the signals over time at arbitrary time intervals.
  • a certain percentage of the mixture component could serve as the default, so that the time average of the production remains constant.
  • this mean could also be changed over a longer period.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP94810206A 1993-04-20 1994-04-12 Procédé de dosage des quantités préalablement déterminées de flocons de fibres de qualité et/ou de couleur différente Withdrawn EP0622480A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1194/93 1993-04-20
CH119493 1993-04-20

Publications (1)

Publication Number Publication Date
EP0622480A1 true EP0622480A1 (fr) 1994-11-02

Family

ID=4204708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94810206A Withdrawn EP0622480A1 (fr) 1993-04-20 1994-04-12 Procédé de dosage des quantités préalablement déterminées de flocons de fibres de qualité et/ou de couleur différente

Country Status (1)

Country Link
EP (1) EP0622480A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2333107A (en) * 1998-01-06 1999-07-14 Keith Michael Lockwood Making yarn with colour varying along its length : garments therefrom
WO2000034557A1 (fr) * 1998-12-09 2000-06-15 Temafa Textilmaschinenfabrik Meissner, Morgner & Co. Gmbh Melange de composants fibreux
US7075018B1 (en) * 1998-12-09 2006-07-11 Temafa Maschinenfabrik Gmbh Mixing fibrous constituents
CN101824673A (zh) * 2010-05-04 2010-09-08 滁州安兴环保彩纤有限公司 纤维混配设备及纤维混配方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466521A1 (fr) * 1979-10-02 1981-04-10 Schubert & Salzer Maschinen Procede et dispositif destines a ouvrir et a melanger des balles de fibres
EP0044408A1 (fr) * 1980-07-23 1982-01-27 Maschinenfabrik Rieter Ag Procédé de surveillance d'une installation pour le mélange de fibres textiles et dispositif pour la mise en oeuvre de ce procédé
DE3335763A1 (de) * 1983-10-01 1985-04-18 Trützschler GmbH & Co KG, 4050 Mönchengladbach Verfahren und vorrichtung zum zuspeisen von fasermaterial zu einer mehrzahl von faserverarbeitungseinrichtungen
JPS6099012A (ja) * 1983-11-02 1985-06-01 Ohara Tekkosho:Kk 合繊混紡用混打綿装置
EP0392869A2 (fr) * 1989-04-14 1990-10-17 James H. Roberson Appareil et procédé pour ouvrir les fibres, pour mélanger et pour régler le passage
EP0470577A1 (fr) * 1990-08-10 1992-02-12 Maschinenfabrik Rieter Ag Procédé et dispositif de dosage pour la distribution de quantités prédétermineés de flocons de fibres par unité de temps

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466521A1 (fr) * 1979-10-02 1981-04-10 Schubert & Salzer Maschinen Procede et dispositif destines a ouvrir et a melanger des balles de fibres
EP0044408A1 (fr) * 1980-07-23 1982-01-27 Maschinenfabrik Rieter Ag Procédé de surveillance d'une installation pour le mélange de fibres textiles et dispositif pour la mise en oeuvre de ce procédé
DE3335763A1 (de) * 1983-10-01 1985-04-18 Trützschler GmbH & Co KG, 4050 Mönchengladbach Verfahren und vorrichtung zum zuspeisen von fasermaterial zu einer mehrzahl von faserverarbeitungseinrichtungen
JPS6099012A (ja) * 1983-11-02 1985-06-01 Ohara Tekkosho:Kk 合繊混紡用混打綿装置
EP0392869A2 (fr) * 1989-04-14 1990-10-17 James H. Roberson Appareil et procédé pour ouvrir les fibres, pour mélanger et pour régler le passage
EP0470577A1 (fr) * 1990-08-10 1992-02-12 Maschinenfabrik Rieter Ag Procédé et dispositif de dosage pour la distribution de quantités prédétermineés de flocons de fibres par unité de temps

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 241 (C - 306) 27 September 1985 (1985-09-27) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2333107A (en) * 1998-01-06 1999-07-14 Keith Michael Lockwood Making yarn with colour varying along its length : garments therefrom
WO2000034557A1 (fr) * 1998-12-09 2000-06-15 Temafa Textilmaschinenfabrik Meissner, Morgner & Co. Gmbh Melange de composants fibreux
US7075018B1 (en) * 1998-12-09 2006-07-11 Temafa Maschinenfabrik Gmbh Mixing fibrous constituents
CZ298194B6 (cs) * 1998-12-09 2007-07-18 Temafa Maschinenfabrik Gmbh Zpusob mísení vlákenných komponent, odvazovací podávací zarízení a rídicí zarízení pro rízení podávací rychlosti podávacího zarízení
CN101824673A (zh) * 2010-05-04 2010-09-08 滁州安兴环保彩纤有限公司 纤维混配设备及纤维混配方法
CN101824673B (zh) * 2010-05-04 2015-03-11 滁州安兴环保彩纤有限公司 纤维混配设备及纤维混配方法

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