EP0777771B1 - Carding machine and process for producing an aerodynamic card web - Google Patents
Carding machine and process for producing an aerodynamic card web Download PDFInfo
- Publication number
- EP0777771B1 EP0777771B1 EP95929069A EP95929069A EP0777771B1 EP 0777771 B1 EP0777771 B1 EP 0777771B1 EP 95929069 A EP95929069 A EP 95929069A EP 95929069 A EP95929069 A EP 95929069A EP 0777771 B1 EP0777771 B1 EP 0777771B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibers
- cylinder
- main cylinder
- carding
- shaft
- 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
Links
- 238000009960 carding Methods 0.000 title claims description 37
- 238000000034 method Methods 0.000 title claims description 8
- 239000000835 fiber Substances 0.000 claims abstract description 65
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims 1
- 230000032258 transport Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Images
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
- D01G15/465—Doffing arrangements for removing fibres using, or cooperating with, pneumatic means
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G25/00—Lap-forming devices not integral with machines specified above
Definitions
- the invention relates to a card for producing a aerodynamically formed fiber pile according to the generic term of claim 1 and a method according to the preamble of claim 8.
- the guide roller has a suction zone, through which the conveying air flow into two partial flows, on the one hand through the suction zone and on the other hand through the as Fiber litter area designated section of a screen belt is divided. Detachment of the fibers from the guide roller takes place only on the rear in the direction of rotation End of the suction zone so that the fleece is produced in two layers becomes.
- the guide roller mainly serves as a deflection surface for part of the opening roller loosening fibers.
- the invention is based on a prior art according to GB-A-22 68 196 the task is based on a clutter create one at high production speeds increased uniformity of the fiber pile, in particular with light floras.
- the invention advantageously proposes another to provide a drum rotating in the opposite direction to the main drum, the fibers flung from the main drum first picks up and then hurled into a shaft.
- This arrangement is particularly useful when using fiber mixtures with very different values in terms of Fineness, fiber density and fiber length are important.
- the second drum leads to better uniformity and a better confusion of the discarded pile.
- the main drum and the opposite of this rotating drum don't touch each other. Also the double-sided clothing circles are at a distance from each other.
- the invention is also particularly suitable for production lighter fiber pile at very high production speed.
- the peripheral speed is preferably the second Drum between approx. 80 and 110% of the peripheral speed the main drum. Because of the almost the same Circumferential speed of the second drum in comparison the peripheral speed of the main drum becomes reliable combing the fibers prevents. The fibers are thrown off the main drum and on the second drum placed in confusion. Without further combing these fibers in turn become centrifugal transported into the shaft, which is essentially from the co-rotating peripheral air flows through the two drums becomes.
- the fiber feed device can also be a fiber pre-opening device form. This will pre-open the Fibers reached.
- That between the fiber feeder and master cylinder Carding unit with several carding rollers in succession is arranged with worker rollers.
- the carding tract causes a particularly good dissolution of the fibers.
- the main drum is in the fiber-guiding peripheral part covered by trough covers or carding elements the fibers at a defined point the main drum left by centrifugal force.
- the airflow that arises in the shaft essentially becomes of the air transported by the main drum and the second drum formed.
- 1 has a machine frame, not shown on one carding tract 28, one Main drum 8, a second drum 20 and one between the main drum 8 and the second drum 20 beginning Shaft 10 accommodates.
- the carding tract 28 has five consecutively arranged Carding rollers 31 to 35, which five worker rollers 36 are assigned to 40.
- the spinning material or the original flora is by means of a feed roller with a feed trough existing fiber feeder 6 supplied.
- At the end of the carding section 28 is that on the last carding roller 35 Flor located from the main drum 8 taken over.
- rollers of the carding section 28, the lower worker rollers 39, 40 and the main drum 8 can with trough plates 11 be covered.
- the main drum 8 is on the top with trough covers 9 covered.
- the main drum 8 has a diameter of approx. 550 mm.
- the preferred peripheral speed of the Main drum 8 is in the range between 2800 and 4300 m / min.
- Tray lid 9 are due to the fibers centrifugal force the explosive high-resolution fibers detached from the main drum set 8 and hurled onto the second drum 20 where it is in an optimal confusion.
- the second drum 20 rotates at approximately the same Peripheral speed as the main drum 8, whereby reliably prevents fibers from entering the second Drum 20 are combed.
- the peripheral speed the drum 20 is approximately 80 to 110% of the peripheral speed the main drum 8.
- the clothing circles of the Drums 8.20 do not touch.
- the second drum 20 can have the same diameter as have the main drum 8, or as in the drawings is shown, a smaller diameter approximately in the Order of magnitude of the last carding roller 35 of the carding section 28 have, ie about 400 mm in diameter.
- the second drum 20 has a lower trough segment 19 and an upper trough cover 18.
- the one in the Shaft 10 forming air flow 12 can only from the co-conveyed by the drum circumference of the drums 8, 20 Put air together. Additional air 23 can be between the trough covers 9 and 18 are sucked in.
- the Detachment of the fibers from the clothing of the drums 8, 20 is made possible by variably adjustable peripheral speeds and air velocities depending on the angle of the chest of the sets and the fiber specifications.
- the air-permeable conveyor belt 17 is endless and is deflected over deflecting rollers 21, so that a section across the air flow 12 at the end of the shaft 10 runs.
- the separation of the fibers on the conveyor belt 17 is supported with a suction air flow 16.
- Above of the conveyor belt 17 is in the withdrawal direction of the fiber web 4 next to the shaft 10 a pressure roller 25 for Compression of the batt 4 is provided.
- the suction air flow is in a below the conveyor belt 17 extending suction shaft 15 of the pile transport device 14 generated.
- the trough cover 9 in the exemplary embodiments of FIGS. 1 and 2 can also be replaced by carding elements 42.
- FIG. 2 differs from the embodiment of FIG. 1 in that a shortened Carding section 28 of the main drum 8 is connected upstream.
- This carding section 28 has only three carding rollers 33, 34, 35 on which a drum 44 with a worker / turning roller pair 29 is connected upstream.
- a fiber feed device 6 initially guides the feed pile by means of a feed roller and a feed trough Drum 44 too. Between the drum 44 and the first Carding roller 33 are an upper worker roller 37 and a lower worker roller 38 is provided. Another worker roller 39 is above and between the first and second Carding roller 33, 34 arranged.
- FIG. 3 shows an embodiment without carding tract, in which a fiber pre-opening device 6 at the same time as Fiber feeder is used.
- the template is included With the help of a roller 26 and a trough 27 of the fiber opening device 6 pre-resolved and directly on the main drum 8 transferred.
- carding elements 42 instead of the trough cover 9 carding elements 42 on the circumference of the main drum 8 between the fiber feed point on the roller 26 and fiber delivery point 22 on Shaft 10 are arranged.
- the carding elements 42 in shape
- the pre-dissolved fleece of Cardmaster plates can to the single fiber fine-resolution before it at the delivery point 22 tangentially but transversely to the shaft 10 in the direction of the second spaced from the main drum 8 Drum 20 is thrown off.
- the fibers get in an optimized mess on the as a fall arrester serving second drum 20 and after a short stay on the drum 20 at the point 24 of the shaft 10 tangentially thrown into the air stream 12 to with a high uniformity of the fiber distribution and the build-up pile thickness on the conveyor belt 17 of the pile transport device 14 to be deposited.
- the shaft 10 can also be closed or sealed at its upper end, so that the air flow 12 is only from the peripheral air the drums 8, 20 composed.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Nonwoven Fabrics (AREA)
- Paper (AREA)
Abstract
Description
Die Erfindung betrifft eine Krempel zur Herstellung eines
aerodynamisch gebildeten Faserflores nach dem Oberbegriff
des Anspruchs 1 sowie ein Verfahren nach dem Oberbegriff
des Anspruchs 8.The invention relates to a card for producing a
aerodynamically formed fiber pile according to the generic term
of claim 1 and a method according to the preamble
of
Derartige Krempeln sind beispielsweise aus der US-A-3,256,569, der US-A-4,064,600, der US-A-4,097,965, der US-A-4,130,915 und der DE-A-39 01 313 bekannt.Such cards are known, for example, from US Pat. No. 3,256,569, US-A-4,064,600, US-A-4,097,965, US-A-4,130,915 and DE-A-39 01 313 known.
Bei den bekannten Krempeln werden die Fasern nach einem Öffnungs- und Kardiervorgang von einer Haupttrommel in einen Luftstrom abgeschleudert. Dieser Luftstrom transportiert die Fasern zu einer Siebeinrichtung, z.B. einer Siebtrommel oder einem Siebband, auf denen die Florbildung stattfindet und von denen ein Faserflor kontinuierlich abgezogen werden kann.In the known carding the fibers after a Opening and carding process from a main drum in thrown an air stream. This airflow transports the fibers to a screening device, e.g. one Sieve drum or a sieve belt on which the pile formation takes place and of which a fibrous web is continuous can be deducted.
Bei der Blasvliesvorrichtung nach GB-A-22 68 196 wird ein Teil der auf einer Auflösewalze befindlichen Fasern auf eine als Führungswalze bezeichnete, teilweise besaugte Walze abgeschleudert. Die Führungswalze weist eine Saugzone auf, durch die der Förderluftstrom in zwei Teilströme, einerseits durch die Saugzone und andererseits durch den als Faseraufstreubereich bezeichneten Abschnitts eine Siebbandes aufgeteilt wird. Ein Ablösen der Fasern von der Führungswalze erfolgt erst an dem in Drehrichtung hinteren Ende der Saugzone, so daß das Vlies zweischichtig erzeugt wird. Die Führungswalze dient in der Hauptsache als Ablenkfläche für einen Teil der sich von der Auflösewalze lösenden Fasern.In the blown nonwoven device according to GB-A-22 68 196 a Part of the fibers on an opening roller onto one referred to as a guide roller, partially suctioned roller thrown off. The guide roller has a suction zone, through which the conveying air flow into two partial flows, on the one hand through the suction zone and on the other hand through the as Fiber litter area designated section of a screen belt is divided. Detachment of the fibers from the guide roller takes place only on the rear in the direction of rotation End of the suction zone so that the fleece is produced in two layers becomes. The guide roller mainly serves as a deflection surface for part of the opening roller loosening fibers.
Der Erfindung liegt ausgehend von einem Stand der Technik nach GB-A-22 68 196 die Aufgabe zugrunde, eine Krempel zu schaffen, die bei hohen Produktionsgeschwindigkeiten eine erhöhte Gleichmäßigkeit des Faserflors, insbesondere bei leichten Floren, ermöglicht.The invention is based on a prior art according to GB-A-22 68 196 the task is based on a clutter create one at high production speeds increased uniformity of the fiber pile, in particular with light floras.
Zur Lösung dieser Aufgabe dienen erfindungsgemäß die Merkmale
des Anspruchs 1 bzw. 8.According to the invention, the features serve to achieve this object
of
Die Erfindung schlägt in vorteilhafter Weise vor, eine weitere gegensinnig zur Haupttrommel rotierende Trommel vorzusehen, die von der Haupttrommel abgeschleuderte Fasern zunächst aufnimmt und dann in einen Schacht abschleudert. Diese Anordnung ist besonders bei Einsatz von Fasermischungen mit stark unterschiedlichen Werten hinsichtlich Feinheit, Faserdichte und Faserlänge von Bedeutung. Die zweite Trommel führt zu einer besseren Gleichmäßigkeit und einer besseren Wirrlage des abgelegten Flores. Die Haupttrommel und die gegensinnig zu dieser rotierende Trommel berühren einander nicht. Auch die beiderseitigen Garniturkreise haben einen Abstand voneinander. Das erfindungsgemäße Verfahren eignet sich besonders auch zur Herstellung leichterer Faserflore bei sehr hoher Produktionsgeschwindigkeit.The invention advantageously proposes another to provide a drum rotating in the opposite direction to the main drum, the fibers flung from the main drum first picks up and then hurled into a shaft. This arrangement is particularly useful when using fiber mixtures with very different values in terms of Fineness, fiber density and fiber length are important. The second drum leads to better uniformity and a better confusion of the discarded pile. The main drum and the opposite of this rotating drum don't touch each other. Also the double-sided clothing circles are at a distance from each other. The invention The method is also particularly suitable for production lighter fiber pile at very high production speed.
Vorzugsweise beträgt die Umfangsgeschwindigkeit der zweiten Trommel zwischen ca. 80 und 110 % der Umfangsgeschwindigkeit der Haupttrommel. Aufgrund der annähernd gleichen Umfangsgeschwindigkeit der zweiten Trommel im Vergleich zur Umfangsgeschwindigkeit der Haupttrommel wird zuverlässig ein Einkämmen der Fasern verhindert. Die Fasern werden von der Haupttrommel abgeschleudert und auf der zweiten Trommel in Wirrlage abgelegt. Ohne weitere Kämmeinwirkungen werden diese Fasern wiederum durch Fliehkraft in den Schacht befördert, der im wesentlichen von der mitrotierenden Umfangsluft der beiden Trommeln durchströmt wird. The peripheral speed is preferably the second Drum between approx. 80 and 110% of the peripheral speed the main drum. Because of the almost the same Circumferential speed of the second drum in comparison the peripheral speed of the main drum becomes reliable combing the fibers prevents. The fibers are thrown off the main drum and on the second drum placed in confusion. Without further combing these fibers in turn become centrifugal transported into the shaft, which is essentially from the co-rotating peripheral air flows through the two drums becomes.
Die Faserzuführeinrichtung kann zugleich eine Faservoröffnungseinrichtung bilden. Dadurch wird eine Voröffnung der Fasern erreicht.The fiber feed device can also be a fiber pre-opening device form. This will pre-open the Fibers reached.
Bei einem bevorzugten Ausführungsbeispiel ist vorgesehen, daß zwischen Faserzuführeinrichtung und Hauptzylinder ein Kardiertrakt mit mehreren hintereinander folgenden Kardierwalzen mit Arbeiterwalzen angeordnet ist. Der Kardiertrakt bewirkt eine besonders gute Auflösung der Fasern.In a preferred embodiment, that between the fiber feeder and master cylinder Carding unit with several carding rollers in succession is arranged with worker rollers. The carding tract causes a particularly good dissolution of the fibers.
Die Haupttrommel ist in dem faserführenden Umfangsteil durch Muldendeckel oder Kardierelemente abgedeckt, damit die Fasern an einem definierten Punkt die Haupttrommel durch Fliehkraft verlassen.The main drum is in the fiber-guiding peripheral part covered by trough covers or carding elements the fibers at a defined point the main drum left by centrifugal force.
Der in dem Schacht entstehende Luftstrom wird im wesentlichen von der transportierten Luft der Haupttrommel und der zweiten Trommel gebildet.The airflow that arises in the shaft essentially becomes of the air transported by the main drum and the second drum formed.
Im folgenden werden unter Bezugnahme auf die Zeichnungen Ausführungsbeispiele der Erfindung näher erläutert.The following are with reference to the drawings Embodiments of the invention explained in more detail.
Es zeigen:
- Fig. 1
- ein erstes Ausführungsbeispiel der Erfindung mit einem vorgeschalteten Kardiertrakt,
- Fig. 2
- ein zweites Ausführungsbeispiel mit einer Trommel zu Beginn des Kardiertraktes, und
- Fig. 3
- ein drittes Ausführungsbeispiel ohne Kardiertrakt.
- Fig. 1
- a first embodiment of the invention with an upstream carding section,
- Fig. 2
- a second embodiment with a drum at the beginning of the carding tract, and
- Fig. 3
- a third embodiment without carding tract.
Die Krempel der Fig. 1 weist ein nicht dargestelltes Maschinengestell
auf, das einen Kardiertrakt 28, eine
Haupttrommel 8, eine zweite Trommel 20 sowie einen zwischen
der Haupttrommel 8 und der zweiten Trommel 20 beginnenden
Schacht 10 aufnimmt.1 has a machine frame, not shown
on one
Der Kardiertrakt 28 weist fünf hintereinander angeordnete
Kardierwalzen 31 bis 35 auf, denen fünf Arbeiterwalzen 36
bis 40 zugeordnet sind. Das Spinngut bzw. der Vorlageflor
wird mittels der aus einer Speisewalze mit Speisemulde
bestehenden Faserzuführeinrichtung 6 zugeführt. Am Ende
des Kardiertraktes 28 wird der auf der letzten Kardierwalze
35 befindliche Flor von der Haupttrommel 8 übernommen.The
Von Kardierwalze zu Kardierwalze ist in Richtung des fortschreitenden Arbeitsprozesses eine Steigerung der Walzendrehzahl in Verbindung mit einer systematischen Abstufung der jeweiligen Garnituren vorgesehen, so daß ein hoher Kardiereffekt für eine fortschreitende Faserisolierung erzielt wird.From carding roller to carding roller is progressing in the direction Work process an increase in roller speed in connection with a systematic gradation of the respective sets, so that a high Carding effect for progressive fiber insulation is achieved.
Die Walzen des Kardiertraktes 28, die unteren Arbeiterwalzen
39, 40 und die Haupttrommel 8 können mit Muldenblechen
11 abgedeckt sein.The rollers of the
Die Haupttrommel 8 ist auf der Oberseite mit Muldendeckeln
9 abgedeckt. Die Haupttrommel 8 hat einen Durchmesser von
ca. 550 mm. Die bevorzugte Umfangsgeschwindigkeit der
Haupttrommel 8 liegt im Bereich zwischen 2800 und 4300
m/min. An dem in Umfangsrichtung der Haupttrommel 8 letzten
Muldendeckel 9 werden aufgrund der auf die Fasern
einwirkenden Fliehkraft die hochaufgelösten Fasern explosionsartig
von der Garnitur der Haupttrommel 8 abgelöst
und auf die zweite Trommel 20 abgeschleudert, wo sie in
einer optimalen Wirrlage aufgefangen werden.The
Die zweite Trommel 20 rotiert mit annähernd der gleichen
Umfangsgeschwindigkeit wie die Haupttrommel 8, wodurch
zuverlässig verhindert wird, daß Fasern in die zweite
Trommel 20 eingekämmt werden. Die Umfangsgeschwindigkeit
der Trommel 20 beträgt ca. 80 bis 110 % der Umfangsgeschwindigkeit
der Haupttrommel 8. Die Garniturkreise der
Trommeln 8,20 berühren sich nicht.The
Die zweite Trommel 20 kann den gleichen Durchmesser wie
die Haupttrommel 8 aufweisen, oder wie in den Zeichnungen
dargestellt ist, einen kleineren Durchmesser etwa in der
Größenordnung der letzten Kardierwalze 35 des Kardiertraktes
28 aufweisen, also ca. 400 mm Durchmesser.The
Die zweite Trommel 20 weist ein unteres Muldensegment 19
und einen oberen Muldendeckel 18 auf. Der sich in dem
Schacht 10 bildende Luftstrom 12 kann sich ausschließlich
aus der von dem Trommelumfang der Trommeln 8, 20 mitgeförderten
Luft zusammensetzen. Zusätzliche Luft 23 kann zwischen
den Muldendeckeln 9 und 18 angesaugt werden. Das
Ablösen der Fasern aus den Garnituren der Trommeln 8, 20
wird durch variabel einstellbare Umfangsgeschwindigkeiten
und Luftgeschwindigkeiten in Abhängigkeit vom Brustwinkel
der Garnituren und der Faserspezifikationen eingestellt.The
Durch die hohe Umfangsgeschwindigkeit der zweiten Trommel
20 werden die Fasern nach nur sehr kurzem Aufenthalt auf
der Trommel 20 sofort wieder tangential in den Schacht 10
abgeschleudert, wo sie in einem Luftstrom 12 zu einer
Flortransporteinrichtung 14 befördert werden, auf der die
Fasern abgeschieden werden und ein Faserflor 4 erzeugt
wird, der kontinuierlich mit Hilfe eines luftdurchlässigen
Transportbandes 17 der Flortransporteinrichtung 14 abgezogen
werden kann.Due to the high peripheral speed of the
Das luftdurchlässige Transportband 17 ist endlos umlaufend
und wird über Umlenkwalzen 21 umgelenkt, so daß ein Abschnitt
quer zu dem Luftstrom 12 am Ende des Schachtes 10
verläuft. Das Abscheiden der Fasern auf dem Transportband
17 wird mit einem Saugluftstrom 16 unterstützt. Oberhalb
des Transportbandes 17 ist in Abzugsrichtung des Faserflores
4 neben dem Schacht 10 eine Andruckwalze 25 zum
Verdichten des Faserflors 4 vorgesehen.The air-
Der Saugluftstrom wird in einem unterhalb des Transportbandes
17 verlaufenden Saugschacht 15 der Flortransporteinrichtung
14 erzeugt.The suction air flow is in a below the
Die Muldendeckel 9 in den Ausführungsbeispielen der Fign.
1 und 2 können auch durch Kardierelemente 42 ersetzt sein.The
Das Ausführungsbeispiel der Fig. 2 unterscheidet sich von
dem Ausführungsbeispiel der Fig. 1 darin, daß ein verkürzter
Kardiertrakt 28 der Haupttrommel 8 vorgeschaltet ist.The embodiment of FIG. 2 differs from
the embodiment of FIG. 1 in that a shortened
Dieser Kardiertrakt 28 weist nur noch drei Kardierwalzen
33, 34, 35 auf, denen eine Trommel 44 mit einem Arbeiter/Wenderwalzenpaar
29 vorgeschaltet ist.This
Eine Faserzuführeinrichtung 6 führt eingangs den Vorlageflor
mittels einer Speisewalze und einer Speisemulde der
Trommel 44 zu. Zwischen der Trommel 44 und der ersten
Kardierwalze 33 sind eine obere Arbeiterwalze 37 und eine
untere Arbeiterwalze 38 vorgesehen. Eine weitere Arbeiterwalze
39 ist oberhalb und zwischen der ersten und zweiten
Kardierwalze 33, 34 angeordnet. A
Fig. 3 zeigt ein Ausführungsbeispiel ohne Kardiertrakt,
bei dem eine Faservoröffnungseinrichtung 6 zugleich als
Faserzuführeinrichtung dient. Der Vorlageflor wird mit
Hilfe einer Walze 26 und einer Mulde 27 der Faservoröffnungseinrichtung
6 voraufgelöst und direkt auf die Haupttrommel
8 übertragen. Bei diesem Ausführungsbeispiel ist
vorgesehen, daß anstelle der Muldendeckel 9 Kardierelemente
42 auf dem Umfang der Haupttrommel 8 zwischen Faseraufgabestelle
an der Walze 26 und Faserabgabestelle 22 am
Schacht 10 angeordnet sind. Die Kardierelemente 42 in Form
von Cardmasterplatten können das voraufgelöste Vlies bis
zur Einzelfaser feinauflösen, bevor es an der Abgabestelle
22 tangential aber quer zu dem Schacht 10 in Richtung auf
die mit Abstand von der Haupttrommel 8 angeordnete zweite
Trommel 20 abgeschleudert wird. Die Fasern gelangen in
einer optimierten Wirrlage auf die als Auffangeinrichtung
dienende zweite Trommel 20 und werden nach kurzem Verbleib
auf der Trommel 20 an der Stelle 24 des Schachtes 10 tangential
in den Luftstrom 12 abgeschleudert, um mit einer
hohen Gleichmäßigkeit der Faserverteilung und der sich
aufbauenden Flordicke auf dem Transportband 17 der Flortransporteinrichtung
14 abgeschieden zu werden.3 shows an embodiment without carding tract,
in which a fiber
Alternativ kann ein zusätzlicher Luftstrom 23 zwischen dem
in der Querrichtung der Haupttrommel 8 letzten Kardierelement
42 und dem Muldendeckel 18 angesaugt werden.Alternatively, an
Auch bei diesem Ausführungsbeispiel kann der Schacht 10 an
seinem oberen Ende geschlossen oder abgedichtet sein, so
daß sich der Luftstrom 12 lediglich aus der Umfangsluft
der Trommeln 8, 20 zusammensetzt.In this embodiment, the
Claims (11)
- A card for producing an aerodynamically formed fibrous web (4), comprising a fiber feed means (6), a main cylinder (8) rotating at high speed and a shaft (10) arranged at said main cylinder (8), said shaft transporting thrown-off fibers in an airflow (12) to an air-permeable web transport means (14) and disposing said fibers on said web transport means (14) in the form of a fibrous web (4),
characterized in that
said main cylinder (8) throws off said fibers at a first location (22) of said shaft (10) onto a second cylinder (20) rotating at high speed in opposite sense to said main cylinder (8) and generating a random orientation of said fibers on said cylinder (20) and that said second cylinder (20) throws off said fibers into said airflow (12) at a second location (24) of said shaft (10). - The card of claim 1, characterized in that the peripheral speed of said cylinder (20) ranges between 80 and 110% of the peripheral speed of the main cylinder (8).
- The card of claim 1 or 2, characterized in that said fiber feed means (6) at the same time is a preliminary fiber opening means.
- The card of one of claims 1 to 3, characterized in that a carding section (28) with a plurality of successively arranged carding rolls (30 to 34) is provided between said fiber feed means (6) and said main cylinder (8).
- The card of claim 4, characterized in that in said carding section (28), a drum (44) with at least one pair of working and stripping rolls (29) is arranged upstream of said carding rolls (33, 34, 35).
- The card of one of claims 1 to 5, characterized in that said main cylinder (8) has carding elements (42).
- The card of one of claims 1 to 6, characterized in that said shaft (10) is open at the top end.
- A method for producing an aerodynamically formed fibrous web by feeding fibers to an opening means (18), feeding the opened fibers to a main cylinder (8) rotating at high speed, throwing fibers off into an airflow (12), and depositing the fibers for forming a fibrous web (4) on an air-permeable fibrous web transport means (14), characterized by throwing the fibers off said main cylinder (8) onto a second cylinder (20) rotating at high speed in opposite sense to said main cylinder (8) and transverse to the airflow (12) entrained between said cylinders (8, 20), and by subsequently throwing said fibers off said second cylinder (20) tangentially into said airflow (12).
- The method of claim 8, characterized in that said fibers pass a carding section (28) before being fed to said main cylinder (8), where they are carded several times.
- The method of one of claims 8 or 9, characterized in that said fibers are carded immediately before being thrown off said main cylinder (8).
- The method of one of claims 8 to 10, characterized in that the peripheral speed of said cylinder (20) is set to a value between about 80 and 110% of the peripheral speed of said main cylinder (8).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4430500A DE4430500A1 (en) | 1994-08-27 | 1994-08-27 | Card and method for producing an aerodynamically formed pile of fibers |
| DE4430500 | 1994-08-27 | ||
| PCT/EP1995/003088 WO1996006964A1 (en) | 1994-08-27 | 1995-08-03 | Carding machine and process for producing an aerodynamic card web |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0777771A1 EP0777771A1 (en) | 1997-06-11 |
| EP0777771B1 true EP0777771B1 (en) | 2000-05-24 |
Family
ID=6526744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95929069A Expired - Lifetime EP0777771B1 (en) | 1994-08-27 | 1995-08-03 | Carding machine and process for producing an aerodynamic card web |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5839166A (en) |
| EP (1) | EP0777771B1 (en) |
| JP (1) | JPH10505638A (en) |
| AT (1) | ATE193340T1 (en) |
| DE (2) | DE4430500A1 (en) |
| WO (1) | WO1996006964A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021132077A1 (en) | 2021-12-06 | 2023-06-07 | Trützschler Group SE | Plant and method for producing a single or multi-layer fleece |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6195842B1 (en) * | 1995-12-08 | 2001-03-06 | E. I. Du Pont De Nemours And Company | Feeding carded fiber to an airlay |
| DE19807496B9 (en) | 1998-02-21 | 2008-05-21 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Method and device for controlling the distortion at a drafting device for textile fiber material |
| FR2777575B1 (en) | 1998-04-17 | 2000-07-07 | Thibeau | METHOD AND INSTALLATION FOR THE FORMATION OF A FIBROUS VEIL BY AERAULIC WAY |
| US6689242B2 (en) | 2001-03-26 | 2004-02-10 | First Quality Nonwovens, Inc. | Acquisition/distribution layer and method of making same |
| DE102007007374A1 (en) | 2007-02-12 | 2008-08-14 | Hubert Hergeth | Webber |
| CN101914823A (en) * | 2010-07-12 | 2010-12-15 | 青岛东佳纺机（集团）有限公司 | Airflow nozzle stripping device |
| EP3276055A1 (en) * | 2016-07-29 | 2018-01-31 | Tma-Sd, Llc. | Textile apparatus for opening and cleaning textile fiber material and method for opening and cleaning textile fiber material |
| DE202016105337U1 (en) | 2016-09-26 | 2018-01-17 | Autefa Solutions Germany Gmbh | Aerodynamic web forming device |
| DE202022106415U1 (en) | 2022-11-15 | 2024-02-16 | Autefa Solutions Germany Gmbh | Fiber treatment plant |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3256569A (en) * | 1963-09-24 | 1966-06-21 | Proctor And Schwartz Inc | Web density control means for web forming apparatus |
| AT388396B (en) * | 1988-01-18 | 1989-06-12 | Fehrer Ernst | DEVICE FOR PRODUCING A FIBER FIBER |
| DE3901313A1 (en) * | 1989-01-18 | 1990-07-19 | Hollingsworth Gmbh | FLEECE CREAM |
| DE4131112A1 (en) * | 1991-09-18 | 1993-03-25 | Schirp Gmbh & Co Kg H | Felting fibre laying appts. - has vertical air flow at upper half of drum in filling shaft, for transfer to lower sieve drum |
| AT396791B (en) * | 1992-06-26 | 1993-11-25 | Fehrer Ernst | DEVICE FOR PRODUCING A FLEECE |
-
1994
- 1994-08-27 DE DE4430500A patent/DE4430500A1/en not_active Withdrawn
-
1995
- 1995-08-03 JP JP8508441A patent/JPH10505638A/en active Pending
- 1995-08-03 EP EP95929069A patent/EP0777771B1/en not_active Expired - Lifetime
- 1995-08-03 US US08/793,668 patent/US5839166A/en not_active Expired - Fee Related
- 1995-08-03 AT AT95929069T patent/ATE193340T1/en not_active IP Right Cessation
- 1995-08-03 DE DE59508399T patent/DE59508399D1/en not_active Expired - Fee Related
- 1995-08-03 WO PCT/EP1995/003088 patent/WO1996006964A1/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021132077A1 (en) | 2021-12-06 | 2023-06-07 | Trützschler Group SE | Plant and method for producing a single or multi-layer fleece |
| WO2023104365A1 (en) | 2021-12-06 | 2023-06-15 | Trützschler Group SE | System and method for producing a single-layer or multi-layer nonwoven |
| EP4444946A1 (en) * | 2021-12-06 | 2024-10-16 | Trützschler Group SE | System and method for producing a single-layer or multi-layer nonwoven |
| EP4444946B1 (en) * | 2021-12-06 | 2025-10-29 | Trützschler Group SE | System and method for producing a single-layer or multi-layer nonwoven |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4430500A1 (en) | 1996-02-29 |
| WO1996006964A1 (en) | 1996-03-07 |
| JPH10505638A (en) | 1998-06-02 |
| US5839166A (en) | 1998-11-24 |
| EP0777771A1 (en) | 1997-06-11 |
| ATE193340T1 (en) | 2000-06-15 |
| DE59508399D1 (en) | 2000-06-29 |
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