EP0677602B1 - Method and apparatus to produce a sliver of fibre material - Google Patents

Method and apparatus to produce a sliver of fibre material Download PDF

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Publication number
EP0677602B1
EP0677602B1 EP95102460A EP95102460A EP0677602B1 EP 0677602 B1 EP0677602 B1 EP 0677602B1 EP 95102460 A EP95102460 A EP 95102460A EP 95102460 A EP95102460 A EP 95102460A EP 0677602 B1 EP0677602 B1 EP 0677602B1
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EP
European Patent Office
Prior art keywords
weight
sliver
subchannels
air duct
slubbing
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
EP95102460A
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German (de)
French (fr)
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EP0677602A2 (en
EP0677602A3 (en
Inventor
Maximilian Pütz
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.)
Paul Hartmann AG
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Paul Hartmann AG
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Filing date
Publication date
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Publication of EP0677602A2 publication Critical patent/EP0677602A2/en
Publication of EP0677602A3 publication Critical patent/EP0677602A3/en
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Publication of EP0677602B1 publication Critical patent/EP0677602B1/en
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
    • 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
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • D01G15/52—Web-dividing arrangements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/06—Arrangements in which a machine or apparatus is regulated in response to changes in the volume or weight of fibres fed, e.g. piano motions

Definitions

  • the invention relates to a method for producing sliver from fiber material with the characteristics of the generic term of Claim 1, and a device for performing this Procedure.
  • a method is already known from DE 33 15 909 A1 for the production of nonwovens, in which by means of a Width distribution measuring system, an evaluation and Control, the air flow in a hopper like this is influenced that a good material distribution across Direction of travel and thus uniform card template reached becomes.
  • a method according to the preamble of claim 1 takes place in spinning technology application to match fuses with very to produce a small running meter weight. This was through Subdivide the filling shaft into a number of partial shafts and thus by dividing the corresponding in the Filling chute fed flake sample into individual Original strips reached.
  • the to change an air passage cross section through the measuring device can be controlled cover device, just like the air outlet itself, any one Have training.
  • a special technical The simplicity of the construction is here Subject of claim 3.
  • Fiber flakes 14 are supplied by means of conveying air.
  • the filling shaft 10 is a processing device 16, for example in the manner of a card. Of further this is for example in four by partitions 18, 20, 22 separate shafts 24, 26, 28 and 30 divided, in each of which one Flake template builds up.
  • the partial shafts are thus removed by means of take-off rollers 32 24 - 30 a total of four strip-shaped flake patterns 34, 36, 38 and 40 simultaneously off and together in the card 16 moved in. Accordingly, the card 16 also fall on the output side four strip-shaped flake patterns, which then processed into matches 42, 44, 46 and 48 become.
  • the conveying air can pass from the sub-shafts 24 - 30 an air passage provided in its lower area 50, which is preferably formed by a flat sieve, flow out again.
  • This sieve extends in the essentially over the entire width of the shaft and over one certain range of the height of the sub-shaft concerned.
  • the supplied fiber flakes 14 are stored in the lower area of the sub-shafts 24 - 30, whereby inevitably a column of material with approximately uniform Fiber distribution builds up.
  • a cover member 52 is assigned to the outside of the shaft by means of an actuator 54 of any design stepless up to essentially complete Release or down to essentially complete Closure of the sieve 50 is adjustable. For the sake of simplicity is only one of these actuators 54 drawn.
  • Each fuse is used to determine the sliver meter weight 42 - 48 by means of a measuring device 56, 58 assigned to it 60 and 62 passed through each one of the Actuators 54 for the slider 52 can be controlled.
  • each measuring device 56-62 has one Control line 64 with that actuating device 54 connected, the slide 52 of that sub-shaft is assigned, whose flake template to form the measuring fuse is provided. For the sake of simplicity only one of these control lines 64 is shown.
  • Controlled variables and corresponding control of the slide 52 is therefore the one to comply with the particularly low Match cord weight required per running meter Fiber density of the individual, strip-like flake patterns 34 - 40 by influencing the deduction of the Conveying air from sub-ducts 24 - 30 can be influenced, although all flake patterns 34 - 40 together in the Card 16 to fiber pile and then to individual sliver 42 - 48 are processed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

To produce slubbing material from a fibre feed, using a card (16) and the like, during the slubbing development the separate slubbings (42, 44, 46, 48) are measured continuously for each running metres. On a deviation of the weight from a nominal value, the cross section of the air passage (50) is varied as a weight correction, leading the air out of the shafts (24, 26, 28, 30) at the flocking stage, at the shaft corresponding to a weight shift in the part-slubbing. Also claimed is an assembly with an air passage (50) in each flocking shaft (24, 26, 28, 30) which is increased or decreased steplessly according to the measured weight of the part-slubbings (42, 44, 46, 48) produced from the flockings (34, 36, 38, 40) in the shafts. Pref. each of the shafts (24, 26, 28, 30) is connected to a monitor (56, 58, 60, 62) located after the card (16), to measure the slubbing weight per running metre. A setting unit (54) for a cover (52) adjusts the working in each shaft according to the monitored readings. The cover (52) has a linear movement, sliding parallel to the sieve forming the air passage. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zur Luntenherstellung aus Fasergut mit den Merkmalen des Oberbegriffs von Anspruch 1, sowie eine Einrichtung zur Durchführung dieses Verfahrens.The invention relates to a method for producing sliver from fiber material with the characteristics of the generic term of Claim 1, and a device for performing this Procedure.

Aus der DE 33 15 909 A1 ist bereits ein Verfahren bekannt zum Herstellen von Vliesen, bei dem mittels eines Breitenverteilungsmeßsystems, einer Auswertung und Steuerung, die Luftströmung in einem Füllschacht derart beeinflußt wird, daß eine gute Materialverteilung quer zur Laufrichtung und damit gleichmäßige Krempelvorlage erreicht wird.A method is already known from DE 33 15 909 A1 for the production of nonwovens, in which by means of a Width distribution measuring system, an evaluation and Control, the air flow in a hopper like this is influenced that a good material distribution across Direction of travel and thus uniform card template reached becomes.

Ein Verfahren gemäß dem Oberbegriff des Anspruchs 1 findet in der Spinnereitechnik Anwendung, um Lunten mit sehr kleinem Laufmetergewicht zu produzieren. Dies wurde durch Unterteilen des Füllschachtes in eine Anzahl Teilschächte und somit durch entsprechendes Aufteilen der in den Füllschacht eingespeisten Flockenvorlage in einzelne Vorlagenstreifen erreicht.A method according to the preamble of claim 1 takes place in spinning technology application to match fuses with very to produce a small running meter weight. This was through Subdivide the filling shaft into a number of partial shafts and thus by dividing the corresponding in the Filling chute fed flake sample into individual Original strips reached.

Aus den einzelnen Vorlagenstreifen werden in der Verarbeitungsvorrichtung, beispielsweise Karde, Florbahnen hergestellt, die nach Verlassen der Verarbeitungsvorrichtung zu Einzellunten verarbeitet werden.From the individual template strips in the Processing device, for example card, card webs manufactured after leaving the Processing device processed into single slits become.

Bei dieser Verfahrensweise war es bisher nicht möglich, Einzellunten mit im wesentlichen gleichbleibendem, geringem Laufmetergewicht zu fertigen, da sich zur Gewichtskorrektur der einzelnen Lunten ein Eingriff in die Einzugsgeschwindigkeit der Verarbeitungsvorrichtung verbietet. In diesem Falle würde nämlich die Faserdichte sämtlicher Lunten gleichzeitig entsprechend verändert werden. With this procedure, it was previously not possible Individual slits with essentially constant, low Run meter weight to manufacture, as for weight correction of the individual fuses an intervention in the Feeding speed of the processing device prohibits. In this case, namely the fiber density all fuses changed accordingly at the same time become.

Hier setzt nun die Erfindung ein, indem sie aufzeigt, wie sich bei einer gleichzeitigen Verarbeitung von mehreren, eine Karde oder dergleichen Verarbeitungsvorrichtung verlassenden Florbahnen zu Einzellunten das Laufmetergewicht jeder dieser Einzellunten kontinuierlich relativ genau auf einem gewünschten Sollwert halten läßt.This is where the invention comes in by showing how processing several, a carding machine or the like processing device leaving pile webs to individual matches Running meter weight of each of these individual lines continuously can be kept relatively precisely at a desired setpoint.

Hierzu wird erfindungsgemäß vorgeschlagen, während der Luntenbildung kontinuierlich die Luntenmasse je laufendem Meter jeder Einzellunte zu messen und bei Gewichtsabweichungen von einem Sollgewicht zur Gewichtskorrektur den Querschnitt des Luftdurchlasses des die Flockenvorlage für die betreffende Einzellunte liefernden Teilschachtes entsprechend zu verändern.For this purpose, it is proposed according to the invention during the Match formation continuously the match mass per running To measure each individual sliver and at Weight deviations from a target weight for Weight correction the cross section of the air outlet of the the flake template for the individual sliver in question delivering partial shaft to change accordingly.

Ergeben sich bei der Überwachung des Laufmetergewichts von Einzellunten Gewichtsabweichungen nach oben, werden diese im wesentlichen kompensiert, indem der Querschnitt des Luftdurchlasses des die betreffende Flockenvorlage liefernden Teilschachts verringert und dadurch das Einspeisen von Fasergut in diesen in der Zeiteinheit entsprechend verlangsamt wird. Results from monitoring the running meter weight of Individual lunar weight deviations upwards, these will be essentially compensated for by the cross section of the Air passage of the flake template in question delivering partial shaft and thereby the Feeding of fiber material in this in the time unit is slowed down accordingly.

Bei Abweichungen des Laufmetergewichts nach unten wird zur Gewichtskorrektur der Luftdurchlaßquerschnitt des betreffenden Teilschachtes entsprechend vergrößert.In the event of deviations in the running meter weight downwards Weight correction of the air passage cross section of the relevant sub-shaft enlarged accordingly.

Zur Durchführung des erfindungsgemäßen Verfahrens eignet sich mit besonderem Vorteil eine Einrichtung nach Anspruch 2.Suitable for carrying out the method according to the invention a facility according to claim is particularly advantageous 2nd

Die zur Veränderung eines Luftdurchlaßquerschnitts durch die Meßvorrichtung ansteuerbare Abdeckvorrichtung kann, ebenso wie der Luftdurchlaß selbst, eine beliebige Ausbildung aufweisen. Eine sich durch besondere technische Einfachheit auszeichnende Konstruktion ist hierbei Gegenstand des Anspruches 3.The to change an air passage cross section through the measuring device can be controlled cover device, just like the air outlet itself, any one Have training. A special technical The simplicity of the construction is here Subject of claim 3.

In der Zeichnung ist, stark schematisiert und teilweise im Längsschnitt gezeigt, ein Ausführungsbeispiel der Einrichtung zur Durchführung des erfindungsgemäßen Verfahrens dargestellt.In the drawing, is highly schematic and partly in Shown longitudinal section, an embodiment of the Device for performing the invention Procedure illustrated.

Mit 10 ist ein oben geschlossener Füllschacht bezeichnet, dem an seiner Oberseite über eine horizontale Förderleitung 12 aus Baumwolle oder synthetischen Fasern bestehende Faserflocken 14 mittels Förderluft zugeführt werden.10 denotes a filling shaft closed at the top, the one on its top via a horizontal delivery line 12 made of cotton or synthetic fibers Fiber flakes 14 are supplied by means of conveying air.

Dem Füllschacht 10 ist eine Verarbeitungsvorrichtung 16, beispielsweise in Art einer Karde, nachgeschaltet. Des weiteren ist dieser beispielsweise in vier durch Trennwände 18, 20, 22 voneinander getrennte Teilschächte 24, 26, 28 und 30 unterteilt, in welchen sich jeweils eine Flockenvorlage aufbaut.The filling shaft 10 is a processing device 16, for example in the manner of a card. Of further this is for example in four by partitions 18, 20, 22 separate shafts 24, 26, 28 and 30 divided, in each of which one Flake template builds up.

Mittels Abzugswalzen 32 werden somit aus den Teilschächten 24 - 30 insgesamt vier streifenförmige Flockenvorlagen 34, 36, 38 und 40 gleichzeitig ab- und gemeinsam in die Karde 16 eingezogen. Dementsprechend fallen an der Karde 16 auch ausgangsseitig vier streifenförmige Flockenvorlagen an, die anschließend zu Lunten 42, 44, 46 und 48 verarbeitet werden.The partial shafts are thus removed by means of take-off rollers 32 24 - 30 a total of four strip-shaped flake patterns 34, 36, 38 and 40 simultaneously off and together in the card 16 moved in. Accordingly, the card 16 also fall on the output side four strip-shaped flake patterns, which then processed into matches 42, 44, 46 and 48 become.

Die Förderluft kann aus den Teilschächten 24 - 30 über einen in deren unterem Bereich vorgesehenen Luftdurchlaß 50, der vorzugsweise durch ein ebenes Sieb gebildet ist, wieder abströmen. Dieses Sieb erstreckt sich im wesentlichen über die gesamte Schachtbreite und über einen bestimmten Bereich der Höhe des betreffenden Teilschachtes. Die zugeführten Faserflocken 14 lagern sich dabei im unteren Bereich der Teilschächte 24 - 30 ab, wobei sich zwangsläufig eine Materialsäule mit annähernd gleichmäßiger Faserverteilung aufbaut.The conveying air can pass from the sub-shafts 24 - 30 an air passage provided in its lower area 50, which is preferably formed by a flat sieve, flow out again. This sieve extends in the essentially over the entire width of the shaft and over one certain range of the height of the sub-shaft concerned. The supplied fiber flakes 14 are stored in the lower area of the sub-shafts 24 - 30, whereby inevitably a column of material with approximately uniform Fiber distribution builds up.

Jedem Luftdurchlaß bzw. Sieb 50 ist vorzugsweise schachtaußenseitig ein Abdeckorgan 52 zugeordnet, das mittels einer Stellvorrichtung 54 beliebiger Ausbildung stufenlos nach oben bis im wesentlichen zur völligen Freigabe bzw. nach unten bis im wesentlichen zum völligen Verschluß des Siebes 50 verstellbar ist. Einfachheitshalber ist lediglich eine dieser Stellvorrichtungen 54 eingezeichnet.Each air passage or screen 50 is preferred A cover member 52 is assigned to the outside of the shaft by means of an actuator 54 of any design stepless up to essentially complete Release or down to essentially complete Closure of the sieve 50 is adjustable. For the sake of simplicity is only one of these actuators 54 drawn.

Zur Ermittlung des Luntenlaufmetergewichtes wird jede Lunte 42 - 48 durch eine ihr zugeordnete Meßvorrichtung 56, 58, 60 und 62 hindurchgeführt, durch die jeweils eine der Stellvorrichtungen 54 für die Schieber 52 ansteuerbar ist.Each fuse is used to determine the sliver meter weight 42 - 48 by means of a measuring device 56, 58 assigned to it 60 and 62 passed through each one of the Actuators 54 for the slider 52 can be controlled.

Hierzu ist jede Meßvorrichtung 56 - 62 über jeweils eine Steuerleitung 64 mit derjenigen Stellvorrichtung 54 verbunden, die dem Schieber 52 desjenigen Teilschachtes zugeordnet ist, dessen Flockenvorlage zur Bildung der zu messenden Lunte vorgesehen ist. Der Einfachheit halber ist lediglich eine dieser Steuerleitungen 64 eingezeichnet.For this purpose, each measuring device 56-62 has one Control line 64 with that actuating device 54 connected, the slide 52 of that sub-shaft is assigned, whose flake template to form the measuring fuse is provided. For the sake of simplicity only one of these control lines 64 is shown.

Durch die über die Meßvorrichtungen 56 - 62 zu ermittelnden Regelgrößen und entsprechende Ansteuerung der Schieber 52 ist somit die zur Einhaltung des besonders geringen Luntenschnurgewichtes je laufendem Meter erforderliche Faserdichte der einzelnen, streifenförmigen Flockenvorlagen 34 - 40 durch entsprechende Beeinflußung des Abzugs der Förderluft aus den Teilschächten 24 - 30 beeinflußbar, obgleich sämtliche Flockenvorlagen 34 - 40 gemeinsam in der Karde 16 zu Faserflor und danach zu Einzellunten 42 - 48 verarbeitet werden.By means of those to be determined via the measuring devices 56-62 Controlled variables and corresponding control of the slide 52 is therefore the one to comply with the particularly low Match cord weight required per running meter Fiber density of the individual, strip-like flake patterns 34 - 40 by influencing the deduction of the Conveying air from sub-ducts 24 - 30 can be influenced, although all flake patterns 34 - 40 together in the Card 16 to fiber pile and then to individual sliver 42 - 48 are processed.

Claims (3)

  1. Method for the production of sliver from fibre material, according to which the fibre material (14) is conducted pneumatically to a receptacle (10) which is subdivided into numerous subchannels (24, 26, 28, 30) lying in a row, and the receptacle wall of these subchannels has an air duct (50) in the lower zone, in each case, for the purpose of withdrawing the delivery air, and where the strip-shaped flocculent feedstocks (34, 36, 38, 40) drawn from the individual subchannels (24, 26, 28, 30), following a common passage through a processing apparatus (16), such as teasing or carding, are processed to form single slivers (42, 44, 46, 48),
    thus characterised that,
    during the sliver formation, the sliver mass for each running meter of each single sliver (42, 44, 46, 48) is continually measured and that, in the event of any deviations in weight from a required weight to weight correction, the cross-section of the air duct (50) of the subchannel supplying the flocculent feedstock for the relevant single sliver is changed accordingly.
  2. Facility for carrying out the method according to Patent Claim 1, with a receptacle (10) which is subdivided into numerous subchannels (24, 26, 28, 30) lying in a row, and the receptacle wall of these subchannels has an air duct (50) in the lower zone, in each case, for the purpose of withdrawing the delivery air and with a processing apparatus (16), such as teasing or carding, thus characterised that the air duct (50) of each subchannel (24, 26, 28, 30) can be increased or decreased on an infinitely variable scale, depending on the determined running meter weight of the sliver (42, 44, 46, 48) produced from its flocculent feedstock (34, 36, 38, 40), in which case and for this purpose a measuring device (56, 58, 60, 62) for measuring the sliver meter running weight is allocated to each of all the subchannels (24, 26, 28, 30) behind the processing apparatus (16) commonly allocated to these, by means of which a setting device (54) for a covering device (covering element 52) of the subchannel (24, 26, 28, 30), allocated to this measuring device (56, 58, 60, 62), can be activated.
  3. Facility according to Claim 2, thus characterised that the covering device is provided with a covering element (52) having a linear movement and which has a parallel sliding movement to a strainer forming the air duct.
EP95102460A 1994-04-14 1995-02-22 Method and apparatus to produce a sliver of fibre material Expired - Lifetime EP0677602B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4412845A DE4412845A1 (en) 1994-04-14 1994-04-14 Process and device for producing sliver from fiber material
DE4412845 1994-04-14

Publications (3)

Publication Number Publication Date
EP0677602A2 EP0677602A2 (en) 1995-10-18
EP0677602A3 EP0677602A3 (en) 1996-04-03
EP0677602B1 true EP0677602B1 (en) 2001-05-09

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ID=6515370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95102460A Expired - Lifetime EP0677602B1 (en) 1994-04-14 1995-02-22 Method and apparatus to produce a sliver of fibre material

Country Status (3)

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EP (1) EP0677602B1 (en)
AT (1) ATE201060T1 (en)
DE (2) DE4412845A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH706658A1 (en) * 2012-06-29 2013-12-31 Rieter Ag Maschf Method and apparatus for controlling the supply of fiber to a carding machine.
CN109338518A (en) * 2018-11-28 2019-02-15 徐州海晟纺织有限公司 A kind of mixing arrangement of mixed yarn

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD145285A1 (en) * 1979-08-07 1980-12-03 Manfred Schneider DEVICE FOR FORMING A FIBERGLAVE ASSEMBLY TO A FIBER BELT
DE3315909A1 (en) * 1983-05-02 1984-11-08 Hubert Dipl.-Ing. 4408 Dülmen Hergeth System for width distribution in the filling shaft
JPS61275427A (en) * 1985-05-25 1986-12-05 Toyoda Autom Loom Works Ltd Automatic sliver end feeding apparatus in card
DE3617525A1 (en) * 1986-05-24 1987-11-26 Truetzschler & Co DEVICE FOR THE COMPARISON OF A CARD TAPE OR CARDEL FLEECE
DE3821238A1 (en) * 1988-06-23 1989-12-28 Rieter Ag Maschf METHOD AND DEVICE FOR PRODUCING A UNIFORM FIBER TAPE
JP2684429B2 (en) * 1989-09-26 1997-12-03 日本スピンドル製造株式会社 Card sliver mottle automatic control device

Also Published As

Publication number Publication date
DE4412845A1 (en) 1995-10-19
EP0677602A2 (en) 1995-10-18
DE59509235D1 (en) 2001-06-13
ATE201060T1 (en) 2001-05-15
EP0677602A3 (en) 1996-04-03

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