EP0031831B1 - Process and device for the production of fiber slubbing and device for carrying out the process - Google Patents

Process and device for the production of fiber slubbing and device for carrying out the process Download PDF

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Publication number
EP0031831B1
EP0031831B1 EP80901272A EP80901272A EP0031831B1 EP 0031831 B1 EP0031831 B1 EP 0031831B1 EP 80901272 A EP80901272 A EP 80901272A EP 80901272 A EP80901272 A EP 80901272A EP 0031831 B1 EP0031831 B1 EP 0031831B1
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EP
European Patent Office
Prior art keywords
sliver
staple fibre
roll
disc
rolling
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EP80901272A
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German (de)
French (fr)
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EP0031831A1 (en
Inventor
Emil Briner
Heinz Clement
Heiner Eberli
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
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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
    • D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
    • D01G1/06—Converting tows to slivers or yarns, e.g. in direct spinning
    • D01G1/10—Converting tows to slivers or yarns, e.g. in direct spinning by cutting
    • 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
    • D01H5/72—Fibre-condensing guides

Definitions

  • the present invention relates to a method for producing a warpable staple fiber tape, in which a strand consisting of endless, parallel filaments of elongate cross-section is continuously conveyed in its longitudinal direction, cut at intervals at an acute angle to its longitudinal direction and thereby broken down into parallelogram-shaped sections and this strand, which has been broken down into sections, is combined on both sides and compressed and formed into a staple fiber tape of approximately round cross-section.
  • This is characterized in that the region of the staple fiber band along a surface line, along which, when the strand is gathered and compacted, the foremost peaks of the parallelogram-shaped sections come to lie in relation to the staple fiber band movement, is continuously pushed into the interior of the staple fiber band, as a result of which a staple fiber band of approximately kidney-shaped cross section is formed.
  • the present invention also relates to a device for performing the above method with a summarizing and compacting point for a lateral summarizing and compacting of the strand.
  • This device is characterized in that in the web of the staple fiber band in the area in which it has an approximately round cross section. there is a curling roller with a disc which dips into the inside of the staple fiber band in the region of the surface line.
  • FIG. 1 shows interfaces 11 at which a strand 12 consisting of originally endless, parallel filaments, which is continuously conveyed in the direction of arrow 13, is cut.
  • the cutting can take place, for example, by means of knives running helically on a roller, which are not shown in the drawing, since they have nothing to do with the present invention.
  • the strand 12 has an elongated cross section, as shown by the cross section 15 belonging to the location 14. It can be seen that cutting results in parallelogram-shaped sections which are delimited by the interfaces 11 and the side surfaces 16 of the strand 12. It cannot be avoided that, as a result of the cutting, the fiber ends at the interfaces 11 form forward tips 17 protruding laterally from one side surface 16 and rearward tips 18 protruding from the other side surface 16.
  • the strand 12 passes between the endless belts 21, which continuously rotate on rollers 22 in the direction indicated by arrows.
  • the belts 21 move against the side surfaces 16, press them together and compress the strand 12 to form a staple fiber band 23.
  • a staple fiber band 23 of approximately round cross section is produced, as is shown by the cross section 25 present at the point 24.
  • the staple fiber band 23 then runs over a curling roller 26. As shown in FIG. 2, this has a disc 27 which runs into the staple fiber band in the region of an imaginary surface line of the staple fiber band 23, which runs parallel to the latter at the points of the tips 17 23 immersed. As a result, this area is pushed into the middle of the staple fiber band 23, whereby its structure changes as shown by the cross section 32 present at the point 31. This is of kidney-shaped shape, the tips 17 now being in the middle of the staple fiber band 23.
  • the conveyor rollers 33 move the staple fiber belt 23 further.
  • a guide wall 34 can be provided on both sides of the disk 27, as indicated in FIG. 2. For reasons of clarity, this guide wall 34 is not shown in FIG. 1.
  • the guide walls 34 each form a trough-like depression 39 with the disk 27.
  • FIG. 3 Another form of guide walls can be seen in FIG. 3.
  • the curling roller 35 each has a roller 36 attached to the side of the curling disc 27, each of which forms a guide wall, the purpose of which is to keep the cross section of the staple fiber band 23 round and compact.
  • the immediately adjacent side walls of the curling disc 27 and one roller 36 converge in the direction against the axis of rotation 37 and merge into one another, so that there is a trough 38 surrounding the curling roller 35 on both sides of the disc 27.
  • Fig. 1 the kink is shown. It consists in that the direction of the staple fiber strip running away from the curling roller 26 deviates somewhat from that of the one running towards the roller 26.
  • the angle formed by the two parts of the staple fiber band 23 is less than 180 ° and is advantageously between 150 ° and 170 °.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Decoration Of Textiles (AREA)
  • Artificial Filaments (AREA)
  • Nonwoven Fabrics (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Ropes Or Cables (AREA)

Abstract

PCT No. PCT/EP80/00045 Sec. 371 Date Mar. 10, 1981 Sec. 102(e) Date Feb. 27, 1981 PCT Filed Jul. 5, 1980 PCT Pub. No. WO81/00263 PCT Pub. Date Feb. 5, 1981.The present invention concerns a method and an apparatus for producing a draftable staple fibre sliver (12) from a strand (12) of endless filaments, which is united and condensed for further processing. According to the invention the zone of the united and condensed sliver, from which, due to the cutting process, fibre points stick away inclined and pointed towards the front and outside, is inserted into the inside of the sliver. In this manner the detrimental effects, caused by the fibre points sticking out, are eliminated. Particularly the defective points in the end product produced, caused by these fibre points, are eliminated, fly waste generation in the processing room is reduced and, owing to the reduction of the danger of clogging of the fibre sliver guiding funnels, the operational reliability of the subsequent processing machines is improved.

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zum Herstellen eines verzugsfähigen Stapelfaserbandes, bei welchem ein aus endlosen, parallelen Filamenten bestehender Strang von länglichem Querschnitt fortlaufend in seiner Längsrichtung gefördert, in Abständen in einem spitzen Winkel zu seiner Längsrichtung geschnitten und dabei in parallelogrammförmige Abschnitte zerlegt und dieser so in Abschnitte zerlegte Strang an seinen beiden Seiten zusammengefasst und verdichtet und zu einem Stapelfaserband ungefähr runden Querschnittes umgeformt wird.The present invention relates to a method for producing a warpable staple fiber tape, in which a strand consisting of endless, parallel filaments of elongate cross-section is continuously conveyed in its longitudinal direction, cut at intervals at an acute angle to its longitudinal direction and thereby broken down into parallelogram-shaped sections and this strand, which has been broken down into sections, is combined on both sides and compressed and formed into a staple fiber tape of approximately round cross-section.

Durch die schweizerische Patentschrift Nr. 300885 ist es bekannt, eine aus endlosen Filamenten bestehende Faserschicht in ein transport- und verzugsfähiges Stapelfaserband umzuformen. Bei diesem Vorgang wird die flache Faserschicht dauernd in ihrer Längsrichtung vorwärts bewegt und periodisch geschnitten. Anschliessend wird sie von beiden Seiten her zusammengefasst und verdichtet. Beim Schneiden der Faserschicht in zur Längsrichtung derselben schrägen Richtung, entstehen parallelogrammförmige Abschnitte der Faserschicht.It is known from Swiss patent specification No. 300885 to convert a fiber layer consisting of endless filaments into a transportable and warpable staple fiber tape. In this process, the flat fiber layer is continuously moved forward in its longitudinal direction and cut periodically. It is then summarized and compressed from both sides. When the fiber layer is cut in the direction oblique to the longitudinal direction of the same, parallelogram-shaped sections of the fiber layer are produced.

Es hat sich gezeigt, dass an den in bezug auf die Bandbewegung vordersten Stellen der einzelnen Bandabschnitte die geschnittenen, nach vorn gerichteten Faserenden seitlich herausstehen und Faserspitzen bilden. Diese stören die weitere Verarbeitung des Faserbandes und bewirken Fehlerstellen in dem durch die weitere Verarbeitung entstehenden Faserband bzw. der Lunte, wodurch die Qualität der damit hergestellten Endprodukte verschlechtert wird. Ausserdem bewirken sie einen erhöhten Faserflug im Maschinensaal. Schliesslich erhöhen sie die Verstopfungsgefahr an den bandführenden Trichtern, und damit verschlechtern sie die Betriebssicherheit der nachfolgenden Maschinen.It has been shown that at the foremost points of the individual band sections with respect to the band movement, the cut, forwardly directed fiber ends protrude laterally and form fiber tips. These interfere with the further processing of the sliver and cause defects in the sliver or fuselage resulting from the further processing, as a result of which the quality of the end products produced therewith is deteriorated. In addition, they cause an increased fiber flight in the machine room. Ultimately, they increase the risk of clogging on the belt-guiding funnels, and thus worsen the operational safety of the subsequent machines.

Durch diese Erfindung sollen diese Nachteile vermieden werden. Diese ist dadurch gekennzeichnet, dass der Bereich des Stapelfaserbandes längs einer Mantellinie, längs welcher beim Zusammenfassen und Verdichten des Stranges die in bezug auf die Stapelfaserbandbewegung vordersten Spitzen der parallelogrammförmigen Abschnitte zu liegen kommen, ins Innere des Stapetfaserbandes laufend eingeschoben wird, wodurch ein Stapelfaserband von ungefähr nierenförmigem Querschnitt gebildet wird.These disadvantages are to be avoided by this invention. This is characterized in that the region of the staple fiber band along a surface line, along which, when the strand is gathered and compacted, the foremost peaks of the parallelogram-shaped sections come to lie in relation to the staple fiber band movement, is continuously pushed into the interior of the staple fiber band, as a result of which a staple fiber band of approximately kidney-shaped cross section is formed.

Die vorliegende Erfindung betrifft ausserdem eine Einrichtung zum Durchführen des obigen Verfahrens mit einer Zusammenfassungs- und Verdichtungsstelle für ein seitliches Zusammenfassen und Verdichten des Stranges. Diese Einrichtung ist dadurch gekennzeichnet, dass in der Bahn des Stapelfaserbandes in dem Bereich, in welchem es ungefähr runden Querschnitt aufweist. eine Einrollwalze mit einer Scheibe vorhanden ist, welche im Bereich der Mantellinie in das Stapelfaserband bis ins Innere derselben eintaucht.The present invention also relates to a device for performing the above method with a summarizing and compacting point for a lateral summarizing and compacting of the strand. This device is characterized in that in the web of the staple fiber band in the area in which it has an approximately round cross section. there is a curling roller with a disc which dips into the inside of the staple fiber band in the region of the surface line.

In der folgenden detaillierten Beschreibung sei die Erfindung an Hand von Ausführungsbeispielen und der Zeichnung näher erläutert. In der letzteren ist

  • Figur 1 eine skizzenhafte Darstellung zur Erläuterung der Wirkungsweise,
  • Figur 2 eine beispielsweise Ausführungsform der Einrollwalze, und
  • Figur 3 eine weitere Ausführungsform dieser Walze.
The invention is explained in more detail in the following detailed description with reference to exemplary embodiments and the drawing. In the latter is
  • FIG. 1 is a sketchy illustration to explain the mode of operation,
  • Figure 2 shows an example embodiment of the curling roller, and
  • Figure 3 shows another embodiment of this roller.

Fig. 1 zeigt Schnittstellen 11, an welchen ein aus ursprünglich endlosen, parallelen Filamenten bestehender Strang 12, welcher dauernd in der Richtung des Pfeiles 13 gefördert wird, geschnitten ist. Das Schneiden kann beispielsweise mittels auf einer Walze schraubenförmig verlaufenden Messern erfolgen, welche in der Zeichnung nicht gezeigt sind, da sie mit vorliegender Erfindung nichts zu tun haben. Der Strang 12 weist einen länglichen Querschnitt auf, wie dies durch den zur Stelle 14 gehörenden Querschnitt 15 gezeigt ist. Es ist ersichtlich, dass durch das Schneiden parallelogrammförmige Abschnitte entstehen, welche durch die Schnittstellen 11 und die Seitenflächen 16 des Stranges 12 begrenzt sind. Es lässt sich nicht vermeiden, dass als Folge des Schneidens die Faserenden an den Schnittstellen 11 seitlich aus der einen Seitenfläche 16 herausstehende vorwärts gerichtete Spitzen 17 und aus der anderen Seitenfläche 16 herausstehende rückwärts gerichtete Spitzen 18 bilden.1 shows interfaces 11 at which a strand 12 consisting of originally endless, parallel filaments, which is continuously conveyed in the direction of arrow 13, is cut. The cutting can take place, for example, by means of knives running helically on a roller, which are not shown in the drawing, since they have nothing to do with the present invention. The strand 12 has an elongated cross section, as shown by the cross section 15 belonging to the location 14. It can be seen that cutting results in parallelogram-shaped sections which are delimited by the interfaces 11 and the side surfaces 16 of the strand 12. It cannot be avoided that, as a result of the cutting, the fiber ends at the interfaces 11 form forward tips 17 protruding laterally from one side surface 16 and rearward tips 18 protruding from the other side surface 16.

Nach dem Schneidvorgang gelangt der Strang 12 zwischen die endlosen Bänder 21, welche auf Rollen 22 in der durch Pfeile angegebenen Richtung dauernd rotieren. Dabei bewegen sich die Bänder 21 gegen die Seitenflächen 16, pressen diese zusammen und verdichten den Strang 12 zu einem Stapelfaserband 23. Bei diesem Vorgang entsteht ein Stapelfaserband 23 von ungefähr rundem Querschnitt, wie das durch den an der Stelle 24 vorhandenen Querschnitt 25 gezeigt ist.After the cutting process, the strand 12 passes between the endless belts 21, which continuously rotate on rollers 22 in the direction indicated by arrows. The belts 21 move against the side surfaces 16, press them together and compress the strand 12 to form a staple fiber band 23. In this process, a staple fiber band 23 of approximately round cross section is produced, as is shown by the cross section 25 present at the point 24.

Anschliessend läuft das Stapelfaserband 23 über eine Einrollwalze 26. Wie in Fig. 2 gezeigt ist, weist diese eine Scheibe 27 auf, welche im Bereich einer gedachten Mantellinie des Stapelfaserbandes 23, die parallel zum letzteren an den Stellen der Spitzen 17 verläuft, in das Stapelfaserband 23 eintaucht. Dadurch wird dieser Bereich in die Mitte des Stapelfaserbandes 23 eingeschoben, wodurch sich dessen Struktur derart verändert, wie dies der an der Stelle 31 vorhandene Querschnitt 32 zeigt. Dieser ist von nierenförmiger Gestalt, wobei sich die Spitzen 17 nun in der Mitte des Stapelfaserbandes 23 befinden. Die Förderwalzen 33 bewegen das Stapelfaserband 23 weiter.The staple fiber band 23 then runs over a curling roller 26. As shown in FIG. 2, this has a disc 27 which runs into the staple fiber band in the region of an imaginary surface line of the staple fiber band 23, which runs parallel to the latter at the points of the tips 17 23 immersed. As a result, this area is pushed into the middle of the staple fiber band 23, whereby its structure changes as shown by the cross section 32 present at the point 31. This is of kidney-shaped shape, the tips 17 now being in the middle of the staple fiber band 23. The conveyor rollers 33 move the staple fiber belt 23 further.

Es hat sich gezeigt, dass die in bezug auf die Richtung des Pfeiles 13 nach hinten gerichteten Spitzen 18 praktisch keine nachteiligen Folgen nach sich ziehen. Jedoch bereiten die vorwärts gerichteten Spitzen 17 bei der weiteren Behandlung des Stapelfaserbandes 23 die bereits erwähnten Schwierigkeiten. Sie bleiben beim Zusammenfassungs- und Verdichtungsvorgang beim Durchlaufen an den Bändern 21 bestehen.It has been shown that the tips 18 directed rearward in relation to the direction of the arrow 13 have practically no disadvantageous consequences. However, they are preparing forward directed tips 17 in the further treatment of the staple fiber tape 23 the difficulties already mentioned. They remain during the summarization and compression process as they pass through the belts 21.

Gemäss dem Ausführungsbeispiel der Fig. 1 sollen diese Nachteile dadurch vermieden werden, dass man den Bereich des Stapelfaserbandes 23 längs dessen gedachter Mantellinie, welche durch die bezüglich der Richtung des Pfeils 13 vordersten Spitzen 17 der parallelogrammförmigen Abschnitte 11, 16 verläuft, in die Mitte des Stapelfaserbandes 23 hineinbringt. Dadurch ergibt sich, nachdem das Stapelfaserband 23 an der Einrollwalze 26 vorbeigelaufen ist, für dieses die bereits erwähnte, durch den Querschnitt 32 gezeigte Struktur. Mit dem Bereich längs der erwähnten Mantellinie sind auch die vorwärts gerichteten Spitzen 17 in die Mitte des Stapelfaserbandes 23 eingebettet worden. Dort werden sie bei der Weiterverarbeitung vollständig unschädlich gemacht, d. h. in die übrigen Fasern eingebettet. Die Scheibe 27 ist im Bereich ihres grössten Umfangs abgerundet und verdickt sich gegen ihre Rotationsachse 37 hin.According to the embodiment of FIG. 1, these disadvantages are to be avoided by moving the region of the staple fiber band 23 along its imaginary surface line, which runs through the foremost points 17 of the parallelogram-shaped sections 11, 16 with respect to the direction of the arrow 13, into the middle of the Staple fiber tape 23 brings. After the staple fiber band 23 has passed the curling roller 26, this results in the structure already mentioned, shown by the cross section 32, for the latter. With the area along the surface line mentioned, the forward tips 17 have also been embedded in the middle of the staple fiber tape 23. There they are made completely harmless during further processing. H. embedded in the other fibers. The disk 27 is rounded in the area of its greatest circumference and thickens towards its axis of rotation 37.

Um zu erreichen, dass das Stapelfaserband 23 bei der Einwirkung der Einrollwalze 26 seine ungefähr runde Querschnittssform möglichst beibehält, kann beidseitig der Scheibe 27 je eine festzusetzende Führungswand 34 vorgesehen sein, wie dies in Fig. 2 angedeutet ist. Der Uebersichtlichkeit wegen ist diese Führungswand 34 in Fig. 1 nicht gezeigt. Die Führungswände 34 bilden mit der Scheibe 27 je eine muldenartige Vertiefung 39.In order to ensure that the staple fiber band 23 retains its approximately round cross-sectional shape as far as possible when the curling roller 26 acts on it, a guide wall 34 can be provided on both sides of the disk 27, as indicated in FIG. 2. For reasons of clarity, this guide wall 34 is not shown in FIG. 1. The guide walls 34 each form a trough-like depression 39 with the disk 27.

Eine andere Form von Führungswänden ist aus Fig. 3 ersichtlich. Gemäss dieser Figur umfasst die Einrollwalze 35 je eine seitlich der Einrollscheibe 27 angebrachte Rolle 36, von denen jede eine Führungswand bildet, deren Zweck es ist, den Querschnitt des Stapelfaserbandes 23 rund und kompakt zu erhalten. Die unmittelbar benachbarten Seitenwände der Einrollscheibe 27 und je einer Rolle 36 laufen in Richtung gegen die Rotationsachse 37 hin zusammen und gehen ineinander über, sodass beidseitig der Scheibe 27 je eine die Einrollwalze 35 umlaufende Mulde 38 vorhanden ist.Another form of guide walls can be seen in FIG. 3. According to this figure, the curling roller 35 each has a roller 36 attached to the side of the curling disc 27, each of which forms a guide wall, the purpose of which is to keep the cross section of the staple fiber band 23 round and compact. The immediately adjacent side walls of the curling disc 27 and one roller 36 converge in the direction against the axis of rotation 37 and merge into one another, so that there is a trough 38 surrounding the curling roller 35 on both sides of the disc 27.

Es empfiehlt sich, die Geschwindigkeit der Oberfläche der Scheibe 27 derjenigen des Stapelfaserbandes 23 in der Weise anzupassen, dass diese im Mittel gleich sind, damit das Stapelfaserband 23 an der Scheibe 27 möglichst wenig gleitet. Auf diese Weise sind die an der Einrollwalze 26 bzw. 35 haftenden und aus dem Stapelfaserband 23 losgelösten Fasern minimal.It is advisable to adapt the speed of the surface of the disk 27 to that of the staple fiber tape 23 in such a way that they are on average the same so that the staple fiber tape 23 slides as little as possible on the disk 27. In this way, the fibers adhering to the curling roller 26 and 35 and detached from the staple fiber band 23 are minimal.

Im weiteren ist es vorteilhaft, das. Stapelfaserband 23 mit einem leichten Knick an der Einrollwalze 26 oder 35 vorbei laufen zu lassen. In Fig. 1 ist der Knick gezeigt. Er besteht darin, dass die Richtung des von der Einrollwalze 26 weglaufenden Stapelfaserbandes von derjenigen des auf die Walze 26 zulaufenden etwas abweicht. Der von den beiden Teilen des Stapelfaserbandes 23 gebildete Winkel ist kleiner als 180° und liegt vorteilhafterweise zwischen 150° und 170°.Furthermore, it is advantageous to let the staple fiber band 23 run past the curling roller 26 or 35 with a slight kink. In Fig. 1 the kink is shown. It consists in that the direction of the staple fiber strip running away from the curling roller 26 deviates somewhat from that of the one running towards the roller 26. The angle formed by the two parts of the staple fiber band 23 is less than 180 ° and is advantageously between 150 ° and 170 °.

Claims (7)

1. Method of producing a draftable staple fibre sliver, in which a strand of endless, parallel filaments of elongate cross-section is continually transported in its longitudinal direction, is cut at intervals at an acute angle relative to its longitudinal direction and is thereby separated into paral- lefogram-shaped sections, and in which the so- sectioned strand is gathered together at its two sides and is compressed and transformed into a staple fibre sliver of approximately circular cross-section, characterised in that the zone of the staple fibre sliver (23) along a surface line along which the front most points (17) of the parallelogram-shaped sections (11, 16), related to the direction of movement of the sliver, come to lie during gathering together and compression of the strand (12), is continually inserted into the inside of the sliver (23), whereby a staple fibre sliver (23) of approximately kidney-shaped cross-section (32) is formed.
2. Method in accordance with claim 1, characterised in that the zone of the staple fibre sliver (23) along the surface line is inserted into the Interior of the sliver (23) up to the centre thereof.
3. Apparatus for implementing the method in accordance with claim 1, with a gathering together and compression station (21, 22) for lateral gathering together and compression of the strand (12) into a staple fibre sliver (23), characterised in that a rolling-in roll (26, 35) with a disc (27), which projects into the interior of the staple fibre sliver (23) in the zone of the surface line, is provided in the path of the staple fibre sliver (23) in the region where it is of approximately circular cross-section (25).
4. Apparatus in accordance with claim 3, characterised in that the disc (27) of the rolling-in roll (26,35) is rounded off in the zone of its largest circumference and increases in thickness from this zone towards the rotational axis (37) of the rolling-in roll (26, 35).
5. Apparatus in accordance with claim 3, characterised in that the gathering together and compression station (21, 22), the rolling-in roll (26, 35) and a transport station (33) for transporting the sliver (23) are arranged in the named sequence in such a way that the parts of the staple fibre sliver (23) extending away from the rolling-in roll (26, 35) in both directions form an angle which is smaller than 180° and which preferably lies in the range from 150° to 170°.
6. Apparatus in accordance with claim 3, characterised in that a respective guide wall (34, 36) is provided at each of the two sides of the disc (27) at a distance from the disc, and in that the guide walls (34, 36) together with the side walls of the disc (27) each form a trough-shaped recess (38, 39).
7. Apparatus in accordance with claims 4 and 6, characterised in that a respective roll (36) is provided on the rolling-in roll (35) at each of the two sides of the disc (27) and in that these rolls (36) form the guide walls, with the neighbouring walls of the rolls (36) and of the disc (27) converging with reducing distance from the rotational axis (37) of the rolling-in roll (35) and forming a trough (38) extending all the way around the latter.
EP80901272A 1979-07-10 1981-02-09 Process and device for the production of fiber slubbing and device for carrying out the process Expired EP0031831B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80901272T ATE3313T1 (en) 1979-07-10 1980-07-05 METHOD OF MAKING STAPLE FIBER TAPE AND EQUIPMENT FOR CARRYING OUT THE METHOD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6409/79 1979-07-10
CH640979 1979-07-10

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EP0031831A1 EP0031831A1 (en) 1981-07-15
EP0031831B1 true EP0031831B1 (en) 1983-05-11

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EP80901272A Expired EP0031831B1 (en) 1979-07-10 1981-02-09 Process and device for the production of fiber slubbing and device for carrying out the process

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US (1) US4389752A (en)
EP (1) EP0031831B1 (en)
JP (1) JPS6357526B2 (en)
AT (1) ATE3313T1 (en)
AU (1) AU6027080A (en)
BR (1) BR8008753A (en)
DE (1) DE3063115D1 (en)
ES (1) ES8105406A1 (en)
IN (1) IN153909B (en)
IT (1) IT1131952B (en)
WO (1) WO1981000263A1 (en)

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US4698956A (en) * 1986-05-29 1987-10-13 Gentex Corporation Composite yarn and method for making the same
US4979270A (en) * 1989-08-03 1990-12-25 Burlington Industries, Inc. Apparatus and methods for converting tow into staple
FR3004902A1 (en) 2013-04-30 2014-10-31 Oreal MULTI-ORIFICE DIFFUSION AEROSOL DEVICE FOR SHAPING HAIR AND / OR MAINTAINING HAIR
FR3004901B1 (en) 2013-04-30 2016-02-12 Oreal MULTI-ORIFICE DIFFUSION AEROSOL DEVICE FOR DRY WASHING HAIR
FR3004929B1 (en) 2013-04-30 2015-04-10 Oreal AEROSOL DEVICE BASED ON SEBUM ABSORBENT POWDER AND CALCIUM CARBONATE
FR3027800B1 (en) 2014-10-29 2018-01-26 L'oreal COMPOSITION BASED ON SEBUM-COATING AND / OR ABSORBENT POWDER AND ALUMINUM SALT
FR3027798B1 (en) 2014-10-29 2017-12-22 Oreal COMPOSITION BASED ON SEBUM-COATING AND / OR ABSORBENT POWDER AND ZINC SALT

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BE554418A (en) *
US2111139A (en) * 1935-09-18 1938-03-15 H & B American Machine Company Process and mechanism for drafting textile sliver, roving, or yarn
US2187830A (en) * 1937-02-23 1940-01-23 Saco Lowell Shops Drafting mechanism for rovings, slivers, and the like
US2248806A (en) * 1937-05-29 1941-07-08 Nelson S Campbell Method and apparatus for forming staple fiber
US2260383A (en) * 1938-08-26 1941-10-28 Fibres Associates Inc Apparatus for producing slivers
US2206232A (en) * 1938-10-27 1940-07-02 H & B American Machine Company Apparatus for drafting textile slivers or rovings
US2795010A (en) * 1952-04-10 1957-06-11 Joh Jacob Rieter & Co Ltd Means for producing a drawable staple sliver
US2908043A (en) * 1955-04-14 1959-10-13 American Viscose Corp Converting bulk filament into staple fiber
US2953823A (en) * 1957-12-18 1960-09-27 Jenkins Metal Shops Inc Apparatus for processing textile fibers
US3083414A (en) * 1959-09-12 1963-04-02 Luwa Ag Forming funnel and method of forming sliver
US3209410A (en) * 1962-09-24 1965-10-05 Dow Chemical Co Cutter roll for converter
NL300745A (en) * 1962-12-07
US3874033A (en) * 1970-11-02 1975-04-01 Deering Milliken Res Corp Trumpet

Also Published As

Publication number Publication date
EP0031831A1 (en) 1981-07-15
BR8008753A (en) 1981-05-05
ATE3313T1 (en) 1983-05-15
IT1131952B (en) 1986-06-25
WO1981000263A1 (en) 1981-02-05
ES493750A0 (en) 1981-06-01
US4389752A (en) 1983-06-28
ES8105406A1 (en) 1981-06-01
JPS6357526B2 (en) 1988-11-11
IT8023373A0 (en) 1980-07-10
JPS56500892A (en) 1981-07-02
IN153909B (en) 1984-08-25
DE3063115D1 (en) 1983-06-16
AU6027080A (en) 1981-01-15

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