EP0206198B1 - Means for friction spinning in a friction spinning apparatus - Google Patents
Means for friction spinning in a friction spinning apparatus Download PDFInfo
- Publication number
- EP0206198B1 EP0206198B1 EP86108187A EP86108187A EP0206198B1 EP 0206198 B1 EP0206198 B1 EP 0206198B1 EP 86108187 A EP86108187 A EP 86108187A EP 86108187 A EP86108187 A EP 86108187A EP 0206198 B1 EP0206198 B1 EP 0206198B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- friction spinning
- spinning device
- yarn
- accordance
- friction
- 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
- 238000010040 friction spinning Methods 0.000 title claims description 47
- 239000000835 fiber Substances 0.000 claims description 42
- 230000015572 biosynthetic process Effects 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000005304 joining Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000007383 open-end spinning Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
- D01H4/16—Friction spinning, i.e. the running surface being provided by a pair of closely spaced friction drums, e.g. at least one suction drum
- D01H4/18—Friction drums, e.g. arrangement of suction holes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
- D01H4/16—Friction spinning, i.e. the running surface being provided by a pair of closely spaced friction drums, e.g. at least one suction drum
Definitions
- the invention relates to a friction spinning means in the form of a perforated drum for a friction spinning device for producing a yarn, as described in the preamble of claim 1.
- a friction spinning agent of this type is described in EP-A-175862, in which the free-flying fibers are released onto the friction spinning agent and held in place by the friction spinning agent for transport to the yarn formation point in such a way that these fibers form an angle with the yarn formation point on average which is smaller than 90 ° but greater than 0 °, ie the fibers are neither in the direction of movement of the friction spinning means nor parallel to the yarn formation point, but in an intermediate one that distance on the friction spinning means are understood on which the so-called yarn end is formed.
- the section of a device according to the invention shown in FIG. 1 has a breakup roller 1 known from the rotor open-end spinning process, which is mounted and can be driven in a housing 2 (only partially shown).
- This opening roller 1 is provided with needles 3 or teeth (not shown) in a manner known per se for opening a sliver into individual fibers.
- disintegration units with such disintegration rollers are known from rotor open-end spinning and are therefore not described further.
- the housing 2 has a fiber outlet opening 4, to which a fiber feed channel 5 connects, which subsequently opens onto the cylindrical surface of a friction spinning drum 6.
- This friction spinning drum 6, as shown with section A, is perforated and contains a suction channel (not shown) which delimits a suction zone on the circumference of the friction spinning drum 6, which extends from the mouth 7 of the conveying channel 5 to the end of the yarn 8 of the yarn 9 and a length has at least the length L of the mouth 7.
- the yarn end 8 will formed in a manner known per se in the area of the yarn formation point 10.
- This air flow which is generated by the suction channel and flows through the fiber conveying channel 5, detaches the fibers 13 detached from the needles 3 and freely flying in the conveying channel 5 within said suction zone on the surface part of the rotating friction drum 6 delimited by the mouth 7 of the conveying channel 5, and ultimately, twisted in the manner mentioned earlier to form the yarn 9 at the yarn formation point 10.
- the friction spinning drum 6 rotates in a direction indicated by the arrow U.
- the finished yarn 9 is drawn off in a draw-off direction B by a pair of draw-off rollers 11.
- the pair of take-off rollers can also be provided on the opposite end of the friction spinning drum 6, which is shown with the dash-dot roller pair 11.1, i.e. the yarn can also be drawn off in the C direction.
- the first mentioned friction spinning drum 6 can be assigned a second friction spinning drum 12, which is arranged so close to the first friction spinning drum 6 that the yarn formed in the gusset gap of both friction spinning drums is turned to a firmer yarn than without this second drum 12th
- the direction of rotation of the drum 12 corresponds to the direction of rotation of the drum 6, which is why both directions of rotation are designated by U.
- Fig. 1 further shows that the fiber feed channel 5 is arranged with an inclination marked with the angle ⁇ , the angle ⁇ being less than 90 ° and by an imaginary extension of the mouth 7 and a lower wall 14 (as viewed in Fig 1) of channel 5 is included.
- the mouth 7 and the line forming the yarn formation point 10 are arranged essentially parallel, but with a predetermined distance F from one another.
- the fibers 13 are seen with their front end, seen in the flow direction S, when they reach the friction spinning drum 6 and conveyed in the circumferential direction U against the yarn end 8, while the subsequent part of the same fiber is conveyed further in the flow direction S, so that the fiber performs a so-called "rollover" and comes to rest on the friction spinning drum 6 in a position marked with the angle ⁇ and opposite to the yarn formation point in comparison with the inclination of the fiber conveying channel.
- a fiber in this position is marked with 13.1.
- the angle ⁇ is by such a fiber and the yarn end 8, respectively. included by the distance resulting from the yarn formation point 10.
- the fibers lie in the position marked with the angle ⁇ on the drum with a smaller angle ⁇ . If, on the other hand, the friction spinning drum has a higher peripheral speed than the free fibers emerging from the mouth, the fibers are stretched by the friction spinning drum when they are grasped and are taken up essentially in the circumferential direction on the friction spinning drum and in the yarn end forming at the yarn formation point.
- the air flow of the individual holes 15 resulting in the perforation of the friction spinning drum has an influence on the position of the fibers 13.1 on the drum 6, the fibers following the spin-stretching movement for the position 13.1 depending on the intensity of the air flow through the holes 15 the corresponding row of holes marked with the angle ⁇ . It depends on the relationship between air speed and peripheral speed of the friction spinning drum whether the fiber comes to lie along the row of holes with the larger angle or along the row of holes with the smaller angle ⁇ .
- the holes 15 are arranged such that the straight lines 16 connecting the hole centers each form an angle ⁇ with the thread formation point which is greater than 0 ° but less than 90 °.
- This angle ⁇ advantageously has a maximum of 80 ° and a minimum of 5 °.
- At least the straight lines connecting the hole centers are each opposite to the feed channel and inclined at the predetermined angle ⁇ to the yarn formation point. This ensures that the fiber also lies in the fiber layer 13.1 after the so-called centrifugal stretching movement.
- the fibers are at the beginning of the yarn formation point 10, seen in the yarn take-off direction, with a smaller angle ⁇ in the fiber layer 13.1 and the fibers at the end of the yarn formation point with a larger angle ⁇ in this fiber layer. This tendency is accommodated by the arrangement of the holes 15 which have rows of holes with a small and a large angle ⁇ .
- the speed and quantity of the air flow emitting the fibers onto the sieve surface of the friction spinning means is selected in such a way that the fibers are very likely to lie on the sieve surface of the friction spinning means in one of the two directions given with the angle ⁇ , this essentially ensures no fiber comes to lie parallel to the yarn end or perpendicular to the friction spinning drum.
- This intensity of the air flow depends on the excess pressure in the suction channel mentioned, on the free air passage area through the holes and on the possibility of sucking air into the delivery channel. For those fibers that lie on the rows of holes according to the angle ⁇ , the angle ⁇ corresponds to the angle ⁇ .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
Die Erfindung bezieht sich auf ein Friktionsspinnmittel in Form einer perforierten Trommel für eine Friktionsspinn-Vorrichtung zur Herstellung eines Garnes, wie sie im Oberbegriff des 1. Anspruches beschrieben ist.The invention relates to a friction spinning means in the form of a perforated drum for a friction spinning device for producing a yarn, as described in the preamble of claim 1.
Ein Friktionsspinnmittel dieser Art ist in der EP-A-175862 beschrieben, bei welchem die frei fliegenden Fasern derart auf das Friktionsspinnmittel abgegeben und vom Friktionsspinnmittel für den Transport bis zur Garnbildungsstelle festgehalten werden, dass diese Fasern im Durchschnitt einen Winkel mit der Garnbildungsstelle einschliessen, der kleiner als 90° jedoch grösser als 0° ist, d.h. die Fasern werden weder in Bewegungsrichtung des Friktionsspinnmittels noch parallel zur Garnbildungsstelle, sondern in einer dazwischenliegenden diejenige Strecke auf dem Friktionsspinnmittel verstanden werden, auf welcher das sogenannte Garnende gebildet wird.A friction spinning agent of this type is described in EP-A-175862, in which the free-flying fibers are released onto the friction spinning agent and held in place by the friction spinning agent for transport to the yarn formation point in such a way that these fibers form an angle with the yarn formation point on average which is smaller than 90 ° but greater than 0 °, ie the fibers are neither in the direction of movement of the friction spinning means nor parallel to the yarn formation point, but in an intermediate one that distance on the friction spinning means are understood on which the so-called yarn end is formed.
Es hat sich nun im Laufe der weiteren Entwicklung gezeigt, dass ein Teil der Fasern je nach Geschwindigkeit des Friktionsspinnmittels und des Luftstromes resp. des Faserstromes in den genannten, nicht erwünschten Richtungen auf die Siebfläche der Friktionsspinnmittel gelegt werden, was ein Nachteil für die Garnbildung, hauptsächlich in bezug auf dessen Festigkeit ist. Um diesen Nachteil zu beheben, ist erfindungsmäss die Anordnung der die Perforation bildenden Löcher derart, dass die die Lochmitten verbindenden Geraden jede einen Winkel mit der Garnbildungsstelle einschliessen, welcher grösser als 0°, jedoch kleiner als 90° ist.It has now been shown in the course of further development that some of the fibers, depending on the speed of the friction spin agent and the air flow, respectively. of the fiber stream are placed in the undesired directions mentioned on the sieve surface of the friction spinning means, which is a disadvantage for the yarn formation, mainly in terms of its strength. In order to remedy this disadvantage, the arrangement of the holes forming the perforation is such that the straight lines connecting the center of the holes each form an angle with the yarn formation point which is greater than 0 ° but less than 90 °.
Weitere vorteilhafte Ausführungsformen sind in den weiteren Ansprüchen enthalten.Further advantageous embodiments are contained in the further claims.
Die Erfindung wird im folgenden anhand von lediglich Ausführungswege darstellenden Zeichnungen näher erläutert.The invention is explained in more detail below with the aid of drawings which only show execution routes.
Es zeigen:
- Fig. 1
- einen schematischen Längsschnitt durch die erfindungsgemäße Vorrichtung,
- Fig. 2
- eine Draufsicht eines Teiles der Vorrichtung von Fig. 1 in Richtung I gesehen und
- Fig. 3
- einen Ausschitt der Vorrichtung von Fig. 1, vergrössert dargestellt,
- Fig. 1
- 2 shows a schematic longitudinal section through the device according to the invention,
- Fig. 2
- a plan view of a part of the device of FIG. 1 seen in the direction I and
- Fig. 3
- 2 shows a section of the device from FIG. 1, shown enlarged,
Der in Fig. 1 dargestellte Ausschnitt einer erfindungsgemässen Vorrichtung weist andeutungsweise eine aus dem Rotor-Offenend-Spinnverfahren her bekannte Auflösewalze 1 auf, welche in einem Gehäuse 2 (nur teilweise gezeigt) gelagert und antreibbar ist. Diese Auflösewalze 1 ist in an sich bekannter Weise für das Auflösen eines Faserbandes in einzelne Fasern mit Nadeln 3 oder Zähnen (nicht gezeigt) versehen.The section of a device according to the invention shown in FIG. 1 has a breakup roller 1 known from the rotor open-end spinning process, which is mounted and can be driven in a housing 2 (only partially shown). This opening roller 1 is provided with needles 3 or teeth (not shown) in a manner known per se for opening a sliver into individual fibers.
Wie bereits erwähnt, sind Auflöseaggregate mit solchen Auflösewalzen aus dem Rotor-Offenend-Spinnen her bekannt und deshalb nicht weiter beschrieben.As already mentioned, disintegration units with such disintegration rollers are known from rotor open-end spinning and are therefore not described further.
Das Gehäuse 2 weist eine Faserauslass-Oeffnung 4 auf, an welche ein Faserförderkanal 5 anschliesst, der nachher an die zylindrische Oberfläche einer Friktionsspinntrommel 6 mündet.The
Diese Friktionsspinntrommel 6 ist, wie mit Ausschnitt A dargestellt, perforiert und beinhaltet einen Saugkanal (nicht gezeigt), welcher eine Saugzone am Umfang der Friktionsspinntrommel 6 abgrenzt, die von der Mündung 7 des Förderkanals 5 bis zum Garnende 8 des Garnes 9 reicht und eine Länge aufweist, die mindestens der Länge L der Mündung 7 entspricht. Das Garnende 8 wird dabei in an sich bekannter Weise im Bereich der Garnbildungsstelle 10 gebildet.This friction spinning drum 6, as shown with section A, is perforated and contains a suction channel (not shown) which delimits a suction zone on the circumference of the friction spinning drum 6, which extends from the mouth 7 of the conveying
Durch diese vom Saugkanal erzeugte, den Faserförderkanal 5 durchströmende Luftströmung werden die von den Nadeln 3 herausgelösten und im Förderkanal 5 frei fliegenden Fasern 13 innerhalb der genannten Saugzone an dem durch die Mündung 7 des Förderkanals 5 abgegrenzten Oberflächenteiles der sich drehenden Friktionstrommel 6 festgehalten und letztlich, in der früher erwähnten Weise, zur Bildung des Garnes 9 and der Garnbildungsstelle 10 eingedreht. Die Friktionsspinntrommel 6 dreht dabei in einer mit dem Pfeil U bezeichneten Richtung.This air flow, which is generated by the suction channel and flows through the
Das fertige Garn 9 wird durch ein Abzugswalzenpaar 11 in einer Abzugsrichtung B abgezogen. Wie aus Fig. 1 ersichtlich, kann des Abzugswalzenpaar auch auf der gegenüberliegenden Stirnseite der Friktionsspinntrommel 6 vorgesehen sein, was mit dem strichpunktierten Walzenpaar 11.1 dargestellt ist, d.h. das Garn kann auch in der Richtung C abgezogen werden.The finished
Um das Eindrehen des Garnes zu unterstützen, kann der erstgenannten Friktionsspinntrommel 6 eine zweite Friktionsspinntrommel 12 zugeordnet werden, welche derart nahe an der ersten Friktionsspinntrommel 6 angeordnet ist, dass das im Zwickelspalt beider Friktionspinntrommeln gebildete Garn zu einem festeren Garn gedreht wird als ohne diese zweite Trommel 12.In order to support the twisting of the yarn, the first mentioned friction spinning drum 6 can be assigned a second
Die Drehrichtung der Trommel 12 entspricht der Drehrichtung der Trommel 6, weshalb beide Drehrichtungen mit U bezeichnet sind.The direction of rotation of the
Fig. 1 zeigt im weitern, dass der Faserförderkanal 5 mit einer mit dem Winkel α gekennzeichneten Neigung angeordnet ist, wobei der Winkel α kleiner als 90° ist und durch eine gedachte Verlängerung der Mündung 7 und eine untere Wand 14 ( mit Blickrichtung wie in Fig. 1 gesehen) des Kanals 5 eingeschlossen wird.Fig. 1 further shows that the
Die Mündung 7 und die die Garnbildungsstelle 10 ergebende Strecke sind im wesentlichen parallel, jedoch mit einem vorgegebenen Abstand F zueinander angeordnet.The mouth 7 and the line forming the
Im Betrieb werden die Fasern 13 mit ihrem vorderen Ende, in Strömungsrichtung S gesehen, beim Erreichen der Friktionsspinntrommel 6 erfasst und in der Umfangsrichtung U gegen das Garnende 8 gefördert, während der nachfolgende Teil derselben Faser in der Strömungsrichtung S weitergefördert wird, so dass die Faser einen sogenannten "Ueberschlag" vollzieht und in einer mit dem Winkel γ gekennzeichneten, zur Garnbildungsstelle im Vergleich zur Neigung des Faserförderkanals entgegengesetzt gerichtet geneigten Lage auf der Friktionsspinntrommel 6 zu liegen kommt. Eine Faser in dieser Lage ist mit 13.1 gekennzeichnet. Der Winkel γ wird durch eine solche Faser und das Garnende 8 resp. durch die die Garnbildungsstelle 10 ergebende Strecke eingeschlossen.In operation, the
Für die
Lage der Faser 13.1 auf der Friktionsspinntommel 6 ist die Relation zwischen der Luftgeschwindigkeit an der Mündung bzw. der Fasergeschwindigkeit an der Mündung und der Umfangsgeschwindigkeit der Friktionsspinntrommel wesentlich.For the
Position of the fiber 13.1 on the friction spinning drum 6, the relation between the air speed at the mouth or the fiber speed at the mouth and the peripheral speed of the friction spinning drum is essential.
Bei einem grösser werdenden Verhältnis der genannten Luftgeschwindigkeit zur Umfangsgeschwindigkeit der Friktionsspinntrommel liegen die Fasern in der mit dem Winkel γ gekennzeichneten Lage mit einem kleiner werdenden Winkel γ auf der Trommel. Weist hingegen die Friktionsspinntrommel eine höhere Umfangsgeschwindigkeit auf als die aus der Mündung austretenden freien Fasern, so werden die Fasern beim Erfasstwerden durch die Friktionsspinntrommel gestreckt und im wesentlichen in Umfangsrichtung auf der Friktionsspinntrommel und im sich bildenden Garnende an der Garnbildungsstelle aufgenommen.When the ratio of the air speed to the peripheral speed of the friction spinning drum increases, the fibers lie in the position marked with the angle γ on the drum with a smaller angle γ. If, on the other hand, the friction spinning drum has a higher peripheral speed than the free fibers emerging from the mouth, the fibers are stretched by the friction spinning drum when they are grasped and are taken up essentially in the circumferential direction on the friction spinning drum and in the yarn end forming at the yarn formation point.
Die Luftströmung der einzelnen, die Perforation der Friktionsspinntrommel ergebenden Löcher 15 hat einen Einfluß auf die Lage der Fasern 13.1 auf der Trommel 6, wobei die Fasern sich im Anschluss an der genannten Schleuderstreckbewegung für die Lage 13.1 je nach Intensität der Luftströmung durch die Löcher 15 entlang der entsprechenden, mit dem Winkel β gekennzeichneten Lochreihe legen. Dabei hängt es von der genannten Relation zwischen Luftgeschwindigkeit und Umfangsgeschwindigkeit der Friktionsspinntrommel ab, ob die Faser entlang der Lochreihe mit dem grösseren oder entlang der Lochreihe mit dem kleineren Winkel β zu liegen kommt.The air flow of the
Um nun eine Lage der Fasern 13.1 in Umfangsrichtung der Trommel 6 oder parallel zum Garnende 8 resp. zur Garnbildungsstelle 10 zu vermeiden, sind die Löcher 15 derart angeordnet, dass die die Lochmitten verbindenden Geraden 16 je einen Winkel β mit der Garnbildungsstelle einschliessen, welcher grösser als 0°, jedoch kleiner als 90° ist. Vorteilhafterweise weist dieser Winkel β im Maximum 80° und im Minimum 5° auf.In order to position the fibers 13.1 in the circumferential direction Drum 6 or parallel to the
Besonders vorteilhaft ist es, wenn der kleinere der beiden Winkel zwischen 30° und 10° vorgesehen ist, um dadurch die Mehrzahl der angelieferten Fasern in diesem Bereich auf der Trommel 6 abzulegen.It is particularly advantageous if the smaller of the two angles is provided between 30 ° and 10 °, in order thereby to deposit the majority of the delivered fibers in this area on the drum 6.
Im weiteren sind mindestens die die Lochmitten verbindenden Geraden je im Vergleich zum Förderkanal entgegengesetzt und mit dem vorgegebenen Winkel β zur Garnbildungsstelle geneigt. Dadurch wird gewährleistet, dass die Faser nach der sogenannten Schleuderstreckbewegung auch in der Faserlage 13.1 zu liegen kommt. Dabei liegen die Fasern am Anfang der Garnbildungsstelle 10, in Garnabzugsrichtung gesehen, mit einem kleineren Winkel β in der Faserlage 13.1 und die Fasern am Ende der Garnbildungsstelle mit einem grösseren Winkel β in dieser genannten Faserlage. Dieser Tendenz kommt die Anordnung der Löcher 15 entgegen, welche Lochreihen mit einem kleinen und mit einem grossen Winkel β aufweisen.Furthermore, at least the straight lines connecting the hole centers are each opposite to the feed channel and inclined at the predetermined angle β to the yarn formation point. This ensures that the fiber also lies in the fiber layer 13.1 after the so-called centrifugal stretching movement. The fibers are at the beginning of the
Wenn ausserdem die Geschwindigkeit und Menge des die Fasern auf die Siebfläche der Friktionsspinnmittel abgebenden Luftstromes derart gewählt wird, dass die Fasern sich mit grosser Wahrscheinlichkeit in einer der beiden mit dem Winkel β gegebenen Richtungen auf die Siebfläche des Friktionsspinnmittels legen, ist gewährleistet, dass im wesentlichen keine Faser parallel zum Garnende oder senkrecht dazu auf die Friktionsspinntrommel zu liegen kommt. Diese Intensität der Luftströmung hängt vom Ueberdruck im genannten Saugkanal, von der freien Luftdurchtrittsfläche durch die Löcher und von der Möglichkeit, Luft in den Förderkanal anzusaugen, ab. Bei denjenigen Fasern, welche auf den Lochreihen gemäss dem Winkel β liegen, entspricht der Winkel γ dem Winkel β.If, in addition, the speed and quantity of the air flow emitting the fibers onto the sieve surface of the friction spinning means is selected in such a way that the fibers are very likely to lie on the sieve surface of the friction spinning means in one of the two directions given with the angle β, this essentially ensures no fiber comes to lie parallel to the yarn end or perpendicular to the friction spinning drum. This intensity of the air flow depends on the excess pressure in the suction channel mentioned, on the free air passage area through the holes and on the possibility of sucking air into the delivery channel. For those fibers that lie on the rows of holes according to the angle β, the angle γ corresponds to the angle β.
Das Zusammenspiel der vorgenannten drei Bedingungen muss von Fall zu Fall bestimmt werden. Beispielsweise wird man sich primär für einen Durchmesser der Löcher 15 und für den Abstand dazwischen entscheiden müssen und wird dementsprechend je nach erforderlicher Luftmenge (m³/min.) einen Unterdruck im Saugkanal wählen.The interaction of the above three conditions must be determined on a case by case basis. For example, you will have to decide primarily for the diameter of the
Claims (8)
- A friction spinning device (6; 20) in the form of a perforated drum (6), for a friction spinning installation for the production of a yarn (9), with a fibre transport passage (5) by means of which freely floating fibres (13) are transported onto the friction spinning device (6) and are formed to a yarn (9) at a yarn formation line (10), the yarn being withdrawn in a predetermined direction (B, C), the opening (7) of the fibre transport passage (5) being provided substantially parallel to the yarn formation line (10) and at a given spacing (F) therefrom, and the fibre tranport passage (5) being inclined to the yarn formation position with an angle (α) which is smaller than 90° but greater than 5°, characterized in that
the arrangement of the holes (15) forming the perforations is such that the straight lines (16) joining the hole centers, compared to the transport passage (5), are oppositely inclined to the yarn formation line (10) define an angle (ß) with the yarn formation line (10) which is greater than 0° but less than 90°. - A friction spinning device in accordance with claim 1, characterized in that
the straight lines (16) connecting the hole centers define two angles (ß) of different magnitudes within the range of 0° and 90°. - A friction spinning device in accordance with claim 2, characterized in that
one of the angles (ß) is at most 80°. - A friction spinning device in accordance with claim 2, characterized in that
one of the angles (ß) is at least 5°. - A friction spinning device in accordance with claims 1 - 5, characterized in that
the angles (ß) lie between 5° and 75°. - A friction spinning device in accordance with claim 5, characterized in that
one of the angles (ß) is smaller than 30° but greater than 10°. - A method with the use of the friction spinning device in accordance with one of the claims 1 - 6, characterized in that
the speed and the amount of the airstream delivering the fibres on the perforated surface of the friction spinning device is chosen in such a way that the fibres lie on the perforated surface of the friction spinning device in the direction of the rows of holes. - A method with the use of the friction spinning device in accordance with one of the preceding claims characterized in that
the relation between the air speed in the fibre transport passage (5) and the speed of the perforated friction spinning device (6) is chosen in such a way that the fibres perform a so-called centrifugal straightening movement upon being caught by the friction spinning device (6) and come to lie on the said friction spinning device in a position (13.1) which has an inclination γ oppositely disposed to the yarn formation position (10) in comparison to the inclination α of the fibre transport passage (5).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853521665 DE3521665A1 (en) | 1985-06-18 | 1985-06-18 | FRICTION SPIDER FOR A FRICTION SPIDER DEVICE |
| DE3521665 | 1985-06-18 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0206198A2 EP0206198A2 (en) | 1986-12-30 |
| EP0206198A3 EP0206198A3 (en) | 1988-01-27 |
| EP0206198B1 true EP0206198B1 (en) | 1991-08-21 |
Family
ID=6273486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86108187A Expired - Lifetime EP0206198B1 (en) | 1985-06-18 | 1986-06-16 | Means for friction spinning in a friction spinning apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4696155A (en) |
| EP (1) | EP0206198B1 (en) |
| JP (1) | JPS6228413A (en) |
| DE (2) | DE3521665A1 (en) |
| IN (1) | IN167332B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN165873B (en) * | 1984-10-15 | 1990-02-03 | Rieter Ag Maschf | |
| DE3629378A1 (en) * | 1986-08-29 | 1988-03-03 | Fritz Stahlecker | ROLLER FOR A OE FRICTION SPINNING DEVICE AND THEIR PRODUCTION |
| DE3832110A1 (en) * | 1988-09-21 | 1990-03-29 | Rieter Ag Maschf | FRICTION SPIDER DEVICE |
| DE4007607A1 (en) * | 1990-03-09 | 1991-09-12 | Schubert & Salzer Maschinen | SPINNING METHOD AND DEVICE FOR PRODUCING A YARN |
| JP2611520B2 (en) * | 1990-09-11 | 1997-05-21 | 三菱電機株式会社 | Strain detector |
| JPH08500153A (en) * | 1992-08-18 | 1996-01-09 | ニコラス ジャコブセン、アラン | Improved method and apparatus for open end twist spinning |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1231198A (en) * | 1967-09-11 | 1971-05-12 | ||
| DE2361313A1 (en) * | 1973-01-17 | 1974-07-18 | Fehrer Ernst | METHOD OF SPINNING TEXTILE FIBERS |
| AT344552B (en) * | 1976-02-02 | 1978-07-25 | Fehrer Ernst Gmbh | DEVICE FOR SPINNING TEXTILE FIBERS |
| AT338665B (en) * | 1976-02-10 | 1977-09-12 | Fehrer Ernst Gmbh | DEVICE FOR SPINNING TEXTILE FIBERS |
| FR2383253A1 (en) * | 1977-03-09 | 1978-10-06 | Vyzk Ustav Bavlnarsky | FRICTIONAL YARN SPINNING METHOD AND DEVICE FOLLOWING THE OPEN-END PRINCIPLE |
| US4399650A (en) * | 1978-10-26 | 1983-08-23 | Alan Parker | Friction type yarn spinner |
| DE3114093C2 (en) * | 1980-04-19 | 1986-06-05 | Hollingsworth (U.K.) Ltd., Accrington, Lancashire | Roller for a friction spinning device |
| AT390276B (en) * | 1982-12-03 | 1990-04-10 | Fehrer Textilmasch | DEVICE FOR PRODUCING A YARN |
| DE3300636A1 (en) * | 1983-01-11 | 1984-07-12 | Fritz 7347 Bad Überkingen Stahlecker | Open-end friction-spinning device |
| DE3316656A1 (en) * | 1983-05-06 | 1984-11-08 | Fritz 7347 Bad Überkingen Stahlecker | DEVICE FOR OE-FRICTION SPINNING |
| DE3318924A1 (en) * | 1983-05-25 | 1984-11-29 | Fritz 7347 Bad Überkingen Stahlecker | Open-end friction spinning device |
| DE3323189A1 (en) * | 1983-06-28 | 1985-01-10 | Fritz 7347 Bad Überkingen Stahlecker | Open-end friction spinning device |
| AT385283B (en) * | 1983-07-13 | 1988-03-10 | Fehrer Textilmasch | DEVICE FOR PRODUCING A YARN |
| DE3336547A1 (en) * | 1983-10-07 | 1985-04-18 | Fritz 7347 Bad Überkingen Stahlecker | DEVICE FOR OE-FRICTION SPINNING |
| DE3403964A1 (en) * | 1984-02-04 | 1985-08-08 | Fritz 7347 Bad Überkingen Stahlecker | DEVICE FOR OE-FRICTION SPINNING |
| JPS61152830A (en) * | 1984-12-27 | 1986-07-11 | Toyoda Autom Loom Works Ltd | Porous roller for absorption twisting spinning machine |
-
1985
- 1985-06-18 DE DE19853521665 patent/DE3521665A1/en not_active Withdrawn
-
1986
- 1986-04-16 IN IN281/MAS/86A patent/IN167332B/en unknown
- 1986-05-26 JP JP61119399A patent/JPS6228413A/en active Pending
- 1986-06-16 US US06/874,522 patent/US4696155A/en not_active Expired - Fee Related
- 1986-06-16 EP EP86108187A patent/EP0206198B1/en not_active Expired - Lifetime
- 1986-06-16 DE DE8686108187T patent/DE3680958D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE3680958D1 (en) | 1991-09-26 |
| DE3521665A1 (en) | 1987-01-02 |
| US4696155A (en) | 1987-09-29 |
| EP0206198A2 (en) | 1986-12-30 |
| IN167332B (en) | 1990-10-06 |
| JPS6228413A (en) | 1987-02-06 |
| EP0206198A3 (en) | 1988-01-27 |
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