EP0358722A1 - Needle ring with needles for the combing cylinders of an open-end spinning frame. - Google Patents

Needle ring with needles for the combing cylinders of an open-end spinning frame.

Info

Publication number
EP0358722A1
EP0358722A1 EP88905654A EP88905654A EP0358722A1 EP 0358722 A1 EP0358722 A1 EP 0358722A1 EP 88905654 A EP88905654 A EP 88905654A EP 88905654 A EP88905654 A EP 88905654A EP 0358722 A1 EP0358722 A1 EP 0358722A1
Authority
EP
European Patent Office
Prior art keywords
needles
needle
ring
section
cross
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.)
Granted
Application number
EP88905654A
Other languages
German (de)
French (fr)
Other versions
EP0358722B1 (en
Inventor
Jorg Stauffer
Pierre Muller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stamatech AG
Original Assignee
Ringtex Kolifrath Sarl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ringtex Kolifrath Sarl filed Critical Ringtex Kolifrath Sarl
Priority to AT88905654T priority Critical patent/ATE94918T1/en
Publication of EP0358722A1 publication Critical patent/EP0358722A1/en
Application granted granted Critical
Publication of EP0358722B1 publication Critical patent/EP0358722B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • Needle ring provided with needles for the opening roller 5 of an open-end spinning machine
  • An all-steel set corresponds more or less to a punched, ie sharp-edged saw blade used in the grooves of the roller.
  • the opening rollers with all-steel fittings have the advantage over the needle rollers that they can be used in almost all spinning boxes, even when heavily contaminated wool is spun, whereas the known needle rollers are only in the
  • the new needle roller provided according to the present invention now has both the advantages of the all-steel clothing rollers and the advantages of the bis-5
  • FIG. 1 shows a side view of a needle ring
  • FIG. 3 shows the detail from FIG. 2, designated III, but on a larger scale
  • FIG. 4 shows a round needle cross-section
  • FIG. 5 shows a flattened needle cross-section on the scale of FIG. 4
  • FIG. 6 shows a plan view of the needle inserted in the hole on an even larger scale.
  • FIGS. 1, 2 and 3 how the needles 1 are inserted into a needle ring 2 which is expediently made of aluminum or brass.
  • the ring has, for example, an inner diameter of 50 mm and an outer diameter of 58 mm, that is to say a wall thickness of 4 mm, the needles being 1 7 mm long, that is to say 4 mm in the ring and projecting approximately 3 mm from the ring surface .
  • the currently known needle rings are equipped with a few hundred needles, each of which has a circular cross section with a diameter of 0.8 mm, for example.
  • the needle roller according to the present invention now does not contain needles with a circular cross section, as shown in FIG. 4 of the drawing, but needles with a flattened cross section.
  • the cross section can thus either have an oval shape or the shape of a rectangle provided with rounded corners or a shape lying between these two shapes, the needle tip essentially having a lancet-like shape.
  • Such needles are produced, for example, from sections of a round wire in that, as is known in the manufacture of needles, they are attached to them Sections on one side grind a tip.
  • these needles are pressed so flat that their resulting width 1b reaches about 4 to 6 times the thickness la reduced by pressing, ie the longer cross-sectional axis 4 is approximately three times as long as the shorter cross-sectional axis 5.
  • These needles 1 with lancet-like tips are now arranged in the ring 2 such that the shorter axis 5 of the needle cross-section runs parallel to the ring axis 2a.
  • these needles also have a
  • the needles 1 can sit radially in the ring 2 or, as shown in the drawing, they can be used in the ring 2 such that their axes 1c on the needle foot with the ring radius 2b on the needle foot with the ring radius have an angle c of up to Form 30 °.
  • the holes into which the needles are inserted are expediently bores 3 with a diameter 3a which is somewhat smaller than the width 1b of the flat-pressed needles, so that the needles 1 can only be inserted into these holes 3 after two grooves have been created in the wall of each hole by punching.
  • These grooves are dimensioned such that the needles 1 have to be used with a certain amount of force, which has the consequence that the needles 1 are then captively stuck in the bore 3 deformed in this way.
  • the needle used only fills the cross section of the bore 3 to a fraction, so that there is an opening 3b on each side of each needle, which can not only be used for this, through an inside of the needle ring supplied air flow or a negative pressure applied to the inside of the needle ring to control the air flow causing the fiber transport in the spinning unit, but also, if desired, to continuously or intermittently suck off fine dirt.
  • Needle rings with lancet-like needle tips which have been produced from round needles by flat pressing, have the same good properties with regard to the resolving power such as the needle rings with sawtooth strips inserted, which are unsuitable per se because of their relatively short service life.
  • the needles have a completely different texture than the sawtooth strips, they have a considerably longer service life than the opening rollers provided with the sawtooth strips and are therefore also suitable for replacing them when there is no need for the possibility to use the control of the air flow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

Alors que les aiguilles des bagues à aiguilles connues présentent une section transversale circulaire, les aiguilles (1) de la bague à aiguilles (2) décrite ont une section transversale ovale, rectangulaire avec des coins arrondis, ou une forme intermédiaire entre ces deux formes. La dimension plus réduite (1a) de la section transversale des aiguilles s'étend parallèlement à l'axe de la bague. Les aiguilles (1) elles-mêmes peuvent être perpendiculairement fixées sur une bague ou former un angle alpha ne dépassant pas 30° avec le rayon (2b), alors que l'angle beta formé par la pointe doit être compris entre 15° et 45°. Ces aiguilles sont montées dans des orifices circulaires (3) dont le diamètre est quelque peu inférieur à la largeur (1b) des aiguilles, qui à son tour, est égale à quatre ou six fois l'épaisseur des aiguilles, ce qui fait que l'aiguille ne remplit pas tout le volume de l'orifice. Deux canaux (3b) restent ouverts qui peuvent être utilisés pour guider le courant d'air de transport des fibres. Ces bagues à aiguille ont une vie utile relativement longue par rapport aux bagues à aiguilles connues dont les aiguilles ont une section transversale circulaire, donc une vie utile considérablement plus longue que celle de cylindres couverts pourvus de garnitures de cadre dites tout-acier, mais au contraire des cylindres à aiguilles connus, peuvent être utilisées avec pratiquement tous les métiers à filer open-end.While the needles of known needle rings have a circular cross section, the needles (1) of the needle ring (2) described have an oval, rectangular cross section with rounded corners, or an intermediate shape between these two shapes. The smaller dimension (1a) of the cross section of the needles extends parallel to the axis of the ring. The needles (1) themselves can be perpendicularly fixed on a ring or form an alpha angle not exceeding 30 ° with the radius (2b), while the beta angle formed by the tip must be between 15 ° and 45 °. These needles are mounted in circular orifices (3) whose diameter is somewhat less than the width (1b) of the needles, which in turn is equal to four or six times the thickness of the needles, which means that l the needle does not fill the entire volume of the orifice. Two channels (3b) remain open which can be used to guide the flow of fiber transport air. These needle rings have a relatively long useful life compared to known needle rings whose needles have a circular cross section, therefore a useful life considerably longer than that of covered cylinders provided with so-called all-steel frame fittings, but at unlike known needle cylinders, can be used with almost all open-end spinning looms.

Description

Mit Nadeln versehener Nadelring für die Auflösewalze 5 einer Offen-End-Spinn-MaschineNeedle ring provided with needles for the opening roller 5 of an open-end spinning machine
Beschreibungdescription
10 Technisches Gebiet der Erfindung und Stand der Technik10 Technical field of the invention and prior art
Für Offen-End-Spinn-Maschinen gibt es derzeit im wesent¬ lichen zwei Sorten von Auflösewalzen, nämlich solche mit ^~~ einer Ganzstahlgarnitur und solche mit eingesetzten Nadeln. Eine Ganzstahlgarnitur entspricht mehr oder weniger einem in Rillen der Walze eingesetzten, gestanz¬ ten, also scharfkantigen Sägeblatt.There are currently essentially two types of opening rollers for open-end spinning machines, namely those with an all-steel set and those with inserted needles. An all-steel set corresponds more or less to a punched, ie sharp-edged saw blade used in the grooves of the roller.
*-° Die Auflösewalzen mit Ganzstahlgarnitur haben ge¬ genüber den Nadelwalzen den Vorteil, dass sie sich in fast allen Spinnboxen verwenden lassen und zwar auch dann, wenn stark verunreinigte Wolle versponnen werden uss, während die bekannten Nadelwalzen sich nur in den* - ° The opening rollers with all-steel fittings have the advantage over the needle rollers that they can be used in almost all spinning boxes, even when heavily contaminated wool is spun, whereas the known needle rollers are only in the
" Spinnboxen einiger Spinnmaschinenhersteller verwenden lassen. Der Vorteil der Nadelwalzen besteht darin, dass sie eine gegenüber den Ganzstahlgarniturenwalzen wesent¬ lich längere Standzeit aufweisen."Have spinning boxes from some spinning machine manufacturers used. The advantage of the needle rollers is that they have a considerably longer service life than the all-steel clothing rollers.
0 Darstellung der Erfindung0 representation of the invention
Die neue mit Nadeln versehene Auflösewalze nach der vorliegenden Erfindung weist nun sowohl die Vorteile der Ganzstahlgarniturenwalzen wie auch die Vorteile der bis- 5The new needle roller provided according to the present invention now has both the advantages of the all-steel clothing rollers and the advantages of the bis-5
Ed/op/17238/Fall 1 + 2 her bekannten Nadelwalzen auf, d.h. sie lässt sich in allen Offen-End-Spinn-Maschinen verwenden und sie weist mindestens die gleiche Standzeit wie die bisher bekannten Nadelwalzen auf. Sie ist dadurch gekennzeichnet, dass die Nadeln nicht den an sich bekannten runden Querschnitt haben, sondern dass ihr Querschnitt entweder eine ovale Form oder die Form eines mit abgerundeten Ecken ver¬ sehenen Rechtecks oder eine zwischen diesen beiden Formen liegende Form aufweist, mit anderen Worten, dass die Nadeln einen abgeflachten Querschnitt aufweisen, also eine lanzettmesserartige Spitze besitzen. Diese Nadeln sitzen zweckmässigerweise so im Nadelring, dass die kürzere Abmessung der Nadelguerschnitte zur Ringachse parallel verläuft. Dabei können die Nadelachsen radial verlaufen oder am Nadelfuss mit dem Ringradius einen Winkel von bis zu 30° bilden. Der Winkel an der Nadelspitze, gemessen im Schnitt quer zur Walzenachse beträgt vorteilhafterweise 15° - 45°.Ed / op / 17238 / case 1 + 2 known needle rollers, ie it can be used in all open-end spinning machines and it has at least the same service life as the previously known needle rollers. It is characterized in that the needles do not have the round cross section known per se, but that their cross section has either an oval shape or the shape of a rectangle provided with rounded corners or a shape lying between these two shapes, in other words, that the needles have a flattened cross section, that is to say they have a lancet-like tip. These needles are expediently seated in the needle ring in such a way that the shorter dimension of the needle cross-sections runs parallel to the ring axis. The needle axes can run radially or form an angle of up to 30 ° with the ring radius on the needle foot. The angle at the needle tip, measured on average across the roll axis, is advantageously 15 ° -45 °.
Kurze Beschreibung der ZeichnungBrief description of the drawing
Nachfolgend werden anhand der beiliegenden Zeichnung Ausführungsbeispiele der Erfindung beschrieben. In der Zeichnung zeigtExemplary embodiments of the invention are described below with reference to the accompanying drawing. In the drawing shows
die Figur 1 eine Seitenansicht eines Nadelrings einer1 shows a side view of a needle ring
Auflδsewalze, wobei jedoch nur die sozusagen parallel zur Zeichnungsebene angeordneten Nadeln eingezeichnet sind,Auflδsewalze, but only the needles are arranged parallel to the plane of the drawing, so to speak,
die Figur 2 die dazugehörige Seitenansicht, wobei jedoch nur eine einzige Nadel eingezeichnet ist,2 shows the associated side view, but only a single needle is shown,
die Figur 3 das mit III bezeichnete Detail aus der Figur 2, jedoch in grösserem Massstab, die Figur 4 einen runden Nadelguerschnitt,FIG. 3 shows the detail from FIG. 2, designated III, but on a larger scale, FIG. 4 shows a round needle cross-section,
die Figur 5 einen abgeflachten Nadelquerschnitt im Masε- stab der Figur 4 und5 shows a flattened needle cross-section on the scale of FIG. 4 and
die Figur 6 eine Draufsicht auf die im Loch eingesetze Nadel in nochmals grösserem Massstab.6 shows a plan view of the needle inserted in the hole on an even larger scale.
Bevorzugte Ausführungsbeispiele der ErfindungPreferred embodiments of the invention
Aus den Figuren 1, 2 und 3 ist ersichtlich, wie die Nadeln 1 in einem zweckmässigerweise aus Aluminium oder Messing bestehenden Nadelring 2 eingesetzt sind. Der Ring hat beispielsweise einen Innendurchmesser von 50 mm und einen äusseren Durchmesser von 58 mm, also eine Wand¬ stärke von 4 mm, wobei die Nadeln 1 7 mm lang sind, also 4 mm im Ring stecken und ca. 3 mm aus der Ringoberfläche vorstehen. Die derzeit bekannten Nadelringe sind mit einigen Hundert Nadeln ausgerüstet, die je einen kreis¬ runden Querschnitt mit beispielsweise einem Durchmesser von 0,8 mm aufweisen.It can be seen from FIGS. 1, 2 and 3 how the needles 1 are inserted into a needle ring 2 which is expediently made of aluminum or brass. The ring has, for example, an inner diameter of 50 mm and an outer diameter of 58 mm, that is to say a wall thickness of 4 mm, the needles being 1 7 mm long, that is to say 4 mm in the ring and projecting approximately 3 mm from the ring surface . The currently known needle rings are equipped with a few hundred needles, each of which has a circular cross section with a diameter of 0.8 mm, for example.
Die Nadelwalze gemäss der vorliegenden Erfindung enthält nun nicht Nadeln mit einem kreisrunden Quer¬ schnitt, wie er in der Figur 4 der Zeichnung dargestellt ist, sondern Nadeln mit einem abgeflachten Querschnitt. Der Querschnitt kann also entweder etwa eine ovale Form oder die Form eines mit abgerundeten Ecken versehenen Rechtecks oder eine zwischen diesen beiden Formen liegende Form aufweisen, wobei die Nadelspitze im wesentlichen eine lanzettmesserartige Form besitzt. Derartige Nadeln werden beispielsweise aus Abschnitten eines runden Drahtes dadurch hergestellt, dass man, wie das bei der Herstellung von Nadeln bekannt ist, an diese Abschnitte an einer Seite eine Spitze anschleift. Nachher werden diese Nadeln so flach gepresst, dass ihre dadurch entstandene Breite 1b etwa das 4- bis 6-fache der durch das Pressen reduzierten Dicke la erreicht, d.h. die längere Querschnittsachse 4 ist ungefähr dreimal so lang wie die kürzere Querschnittsachse 5. Diese Nadeln 1 mit lanzettmesserartigen Spitzen sind nun so im Ring 2 angeordnet, dass die kürzere Achse 5 des Nadelquerschnittε zur Ringachse 2a parallel verläuft. Auch diese Nadeln haben, wie die Nadeln mit rundem Querschnitt, an derThe needle roller according to the present invention now does not contain needles with a circular cross section, as shown in FIG. 4 of the drawing, but needles with a flattened cross section. The cross section can thus either have an oval shape or the shape of a rectangle provided with rounded corners or a shape lying between these two shapes, the needle tip essentially having a lancet-like shape. Such needles are produced, for example, from sections of a round wire in that, as is known in the manufacture of needles, they are attached to them Sections on one side grind a tip. Afterwards, these needles are pressed so flat that their resulting width 1b reaches about 4 to 6 times the thickness la reduced by pressing, ie the longer cross-sectional axis 4 is approximately three times as long as the shorter cross-sectional axis 5. These needles 1 with lancet-like tips are now arranged in the ring 2 such that the shorter axis 5 of the needle cross-section runs parallel to the ring axis 2a. Like the needles with a round cross-section, these needles also have a
Spitze einen Winkel jo von 15° - 45°. Die Nadeln 1 können an sich radial im Ring 2 sitzen oder sie können, wie das in der Zeichnung dargestellt ist, so im Ring 2 eingesetzt sein, dass ihre Achsen 1c am Nadelfuss mit dem Ringradius 2b am Nadelfuss mit dem Ringradiuε einen Winkelc von bis zu 30° bilden.Point an angle jo of 15 ° - 45 °. The needles 1 can sit radially in the ring 2 or, as shown in the drawing, they can be used in the ring 2 such that their axes 1c on the needle foot with the ring radius 2b on the needle foot with the ring radius have an angle c of up to Form 30 °.
Bei den Löchern, in die die Nadeln eingesetzt werden, handelt es sich, wie aus der Figur 6 ersichtlich ist, zweckmässigerweise um Bohrungen 3 mit einem Durchmesser 3a, der etwas kleiner ist als die Breite lb der flach- gepressten Nadeln, so dass die Nadeln 1 in diese Boh¬ rungen 3 erst eingesetzt werden können, nachdem in die Wand jeder Bohrung durch Stanzen zwei Nuten erzeugt worden sind. Diese Nuten sind so bemessen, dass die Nadeln 1 mit einem gewissen Kraftaufwand eingesetzt werden müssen, was zur Folge hat, dass die Nadeln 1 dann in der so deformierten Bohrung 3 unverlierbar festsitzen. Beim Einsetzen der Nadeln 1 bzw. bereits beim Stanzen der Nuten, ist natürlich darauf zu achten, dass die Nadel¬ breitseite parallel zur Umfangεrichtung des Ringes 2 verläuft. Wie man aus der Figur 3 ersehen kann, füllt die eingesetzte Nadel den Querschnitt der Bohrung 3 nur zu einem Bruchteil aus, so dass beidseits jeder Nadel je eine Öffnung 3b vorhanden ist, die nicht nur dazu benützt werden kann, durch einen ins Innere des Nadelringes zugeführten Luftεtrom oder einen ans Innere des Nadel¬ ringes angelegten Unterdruck den den Fasertransport im Spinnaggregat bewirkenden Luftstrom zu steuern, sondern gewünschten Falls auch dazu, feinen Schmutz kontinuier- lieh oder intermittierend abzusaugen. Abgesehen davon, dass sich mit den flachen Nadeln diese Möglichkeit der Luftstromsteuerung ergibt, lässt sich noch ein weiterer Vorteil erzielen: Nadelringe mit lanzettmesserartigen Nadelspitzen, die aus runden Nadeln durch Flachpressen hergestellt worden sind, haben die gleich guten Eigen¬ schaften in bezug auf das Auflösevermögen wie die wegen ihrer verhältniεmässig kurzen Standzeit an sich unzweck- mässigen Nadelringe mit eingeεetzten Sägezahnstreifen. Sie besitzen jedoch dank der Tatεache, daεε die Nadeln eine völlig andere Textur als die Sägezahnstreifen aufweisen, eine wesentlich längere Standzeit als die mit den Sägezahnstreifen versehenen Auflösewalzen und eigenen sich daher auch dann dazu, jene zu ersetzen, wenn kein Bedürfnis besteht, von der Möglichkeit der Steuerung des Luftstromes Gebrauch zu machen. As can be seen in FIG. 6, the holes into which the needles are inserted are expediently bores 3 with a diameter 3a which is somewhat smaller than the width 1b of the flat-pressed needles, so that the needles 1 can only be inserted into these holes 3 after two grooves have been created in the wall of each hole by punching. These grooves are dimensioned such that the needles 1 have to be used with a certain amount of force, which has the consequence that the needles 1 are then captively stuck in the bore 3 deformed in this way. When inserting the needles 1 or already when punching the grooves, it must of course be ensured that the broad side of the needle runs parallel to the circumferential direction of the ring 2. As can be seen from FIG. 3, the needle used only fills the cross section of the bore 3 to a fraction, so that there is an opening 3b on each side of each needle, which can not only be used for this, through an inside of the needle ring supplied air flow or a negative pressure applied to the inside of the needle ring to control the air flow causing the fiber transport in the spinning unit, but also, if desired, to continuously or intermittently suck off fine dirt. Apart from the fact that this possibility of air flow control is provided with the flat needles, a further advantage can be achieved: Needle rings with lancet-like needle tips, which have been produced from round needles by flat pressing, have the same good properties with regard to the resolving power such as the needle rings with sawtooth strips inserted, which are unsuitable per se because of their relatively short service life. However, thanks to the fact that the needles have a completely different texture than the sawtooth strips, they have a considerably longer service life than the opening rollers provided with the sawtooth strips and are therefore also suitable for replacing them when there is no need for the possibility to use the control of the air flow.

Claims

Patentansprüche Claims
1. Mit Nadeln versehener Nadelring für die Auflöse- walze einer Offen-End-Spinn-Maschine, dadurch gekennzeich¬ net, dasε der Querschnitt der Nadeln (1) entweder eine ovale Form oder die Form eines mit abgerundeten Ecken versehenen Rechteckes oder eine zwischen diesen beiden Formen liegende Form aufweist.1. Needle ring provided with needles for the opening roller of an open-end spinning machine, characterized in that the cross-section of the needles (1) is either an oval shape or the shape of a rectangle provided with rounded corners or one between them has both lying form.
2. Nadelring nach Anspruch 1, dadurch gekennzeichnet, dass die kürzere Abmessung (5) der Nadelquerschnitte zur Ringachse (2a) parallel verläuft.2. Needle ring according to claim 1, characterized in that the shorter dimension (5) of the needle cross sections to the ring axis (2a) runs parallel.
3. Nadelring nach Anspruch 2, dadurch gekennzeichnet, dass die Nadeln so im Ring εitzen, dass ihre Achsen radial zum Ring verlaufen oder dass sie am Nadelfuss mit dem Ringradius einen Winkel bis zu 30° bilden.3. Needle ring according to claim 2, characterized in that the needles sit in the ring such that their axes run radially to the ring or that they form an angle of up to 30 ° with the ring radius on the needle foot.
4. Nadelring nach Anspruch 2 oder Anspruch 3, dadurch gekennzeichnet, dasε der Winkel an den Nadel- εpitzen im Schnitt quer zur Ringachεe 15° - 45° beträgt.4. Needle ring according to claim 2 or claim 3, characterized in that the angle at the needle ε tips in cross section to the ring axis is 15 ° - 45 °.
5. Nadelring nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dasε die Nadeln in runden Löchern (3) sitzen, deren Durchmesεer etwaε geringer alε die Breite (lb) der Nadeln ist aber ein Mehrfaches der Nadeldicke (la) beträgt. 5. needle ring according to one of claims 1 to 4, characterized in that the needles sit in round holes (3) whose diameter is approximately less than the width (lb) of the needles but is a multiple of the needle thickness (la).
EP88905654A 1987-08-03 1988-07-21 Needle ring with needles for the combing cylinders of an open-end spinning frame Expired - Lifetime EP0358722B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88905654T ATE94918T1 (en) 1987-08-03 1988-07-21 NEEDED NEEDLE RING FOR THE OPENING ROLLER OF AN OPEN-END SPINNING MACHINE.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH2967/87 1987-08-03
CH296787 1987-08-03
CH80788 1988-03-03
CH807/88 1988-03-03

Publications (2)

Publication Number Publication Date
EP0358722A1 true EP0358722A1 (en) 1990-03-21
EP0358722B1 EP0358722B1 (en) 1993-09-22

Family

ID=25685746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88905654A Expired - Lifetime EP0358722B1 (en) 1987-08-03 1988-07-21 Needle ring with needles for the combing cylinders of an open-end spinning frame

Country Status (5)

Country Link
US (1) US5019110A (en)
EP (1) EP0358722B1 (en)
JP (1) JPH02500118A (en)
DE (1) DE3884393D1 (en)
WO (1) WO1989001064A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH681020A5 (en) * 1990-04-30 1992-12-31 Rieter Ag Maschf
DE19531605C2 (en) * 1995-08-28 2001-07-19 Graf & Co Ag Fixed comb for a combing machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1323885A (en) * 1919-12-02 Machine for treating wool
US304208A (en) * 1884-08-26 Verviers
US1115990A (en) * 1913-07-23 1914-11-03 William R Brown Fiber-cleaning apparatus.
GB287325A (en) * 1927-03-29 1928-03-22 Frank Holdsworth Bentham Improvements in or connected with faller pins and bars for gill boxes and the like
US1944526A (en) * 1932-03-04 1934-01-23 Arthur J Perron Shoddy-picker
US2028919A (en) * 1934-06-27 1936-01-28 W H Bagshaw Co Textile picker
US2261452A (en) * 1939-10-03 1941-11-04 William Crabb & Company Picker lag and pin
CH505919A (en) * 1969-01-31 1971-04-15 Chr Burckhardt Fa Needle roller
DE3146006A1 (en) * 1981-11-20 1983-06-01 Staedtler & Uhl, 8540 Schwabach NEEDLE FOR TEXTILE MACHINES AND DEVICE AND METHOD FOR THEIR PRODUCTION

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8901064A1 *

Also Published As

Publication number Publication date
EP0358722B1 (en) 1993-09-22
JPH02500118A (en) 1990-01-18
DE3884393D1 (en) 1993-10-28
WO1989001064A1 (en) 1989-02-09
US5019110A (en) 1991-05-28

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