EP0627510B2 - Auflösewalze für eine O-E-Spinnvorrichtung und Verfahren zu ihrer Herstellung - Google Patents
Auflösewalze für eine O-E-Spinnvorrichtung und Verfahren zu ihrer Herstellung Download PDFInfo
- Publication number
- EP0627510B2 EP0627510B2 EP94108472A EP94108472A EP0627510B2 EP 0627510 B2 EP0627510 B2 EP 0627510B2 EP 94108472 A EP94108472 A EP 94108472A EP 94108472 A EP94108472 A EP 94108472A EP 0627510 B2 EP0627510 B2 EP 0627510B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- opening roller
- recesses
- depth
- teeth
- helical groove
- 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
- 238000007383 open-end spinning Methods 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000835 fiber Substances 0.000 claims description 20
- 230000035515 penetration Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 description 7
- 238000009987 spinning Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004381 surface treatment Methods 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
- D01H4/30—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
- the invention relates to an opening roller a fiber separation device of an open-end spinning machine, with a cylinder body attached to its outer circumference has teeth cut through it Penetration of at least one spiral groove with one Number of recesses are formed, as well as one Process for producing the opening roller mentioned above.
- Open-end spinning machines are the opening rollers mostly as a cylindrical body formed on the outer periphery of a spiral groove is provided, in which a sawtooth wire is rolled, whose teeth are the working elements in the dissolution of the sliver to individual fibers (U.S. Patent 4 342137).
- Opening rollers especially what their lifespan concerns, not satisfactory. It therefore follows a surface treatment on the rolling in of the clothing wire the opening roller to make them more wear-resistant close. Show through that Defects caused by rolling in as well as defects in the surface of the clothing wire that is coating make it difficult or even impossible, which makes the Function of the opening roller is negatively affected. On Another disadvantage of this opening roller is that Possibility that in the alleys through the toothless Part of the saw tooth set are formed, Dirt and fiber accumulations stick that then irregularities or other defects on the spun yarn.
- Disintegration rollers are also known, e.g. to DE OS 19 39 683, in which on the circumference of the cylinder body saw-like teeth with the help of a spiral groove are formed, from the upper part by axially extending Incisions on the front and back surfaces the teeth are shaped.
- DD-PS 210 714 is also a compact toothed ring known for fiber separation on open-end spinning machines, its external teeth in helical turns are manufactured with a certain helix angle.
- the latter feature means that the shape of the set of such an opening roller Opening roller with sawtooth set is similar, and that at the high spinning speeds of the current Open-end spinning it to stick of dirt or fibers in the lower area between the rows of teeth can come.
- the fibers become Retracted tooth base.
- the biggest disadvantage is that axial incisions through which the forehead and Back surfaces of the teeth are shaped.
- the teeth of the Opening rollers come into contact in rows at the same time with the sliver so that the resolution of the Sliver takes place jerkily.
- the fibers are therefore not evenly, but in tufts Spinning process fed, which has an undesirable influence of yarn quality.
- a bottom of the spiral groove, which is in the Cross section has a curvature.
- the depth of the recesses can be adjusted, the after the first variant in comparison with the Depth of the spiral groove is greater. In this case it is on most advantageous if the depth of the recesses is around a multiple greater than 0.05 to 0.5 than the depth of the spiral groove.
- the depth of the recesses in The circumferential direction changes cyclically.
- the outer periphery of the opening roller cylinder body can the teeth to the mass distribution of the Sliver can be adjusted transversely to the direction of transport.
- Another variation is the depth of the recesses smaller than the depth of the spiral groove.
- the best results in running the fibers in the separation process on Scope will be achieved if the diameter of the Flanges compared to the diameter of the tip circle the teeth are larger or the same size.
- the cylinder body is advantageously made of a hardenable steel manufactured.
- the essence of the manufacturing process the opening roller is that the cylinder body a rotary movement during the manufacture of the recesses is granted.
- the opening roller 1 for a opening device an open-end spinning machine consists in the illustrated embodiments from a cylinder body 2, an axial bore 21 for storage the opening roller on a not shown Has drive shaft.
- the cylinder body 2 of the opening roller 1 can also be designed in a different way be, e.g. in one piece with the drive shaft, or in several pieces as a ring-shaped outer body that on a cylindrical base body is mounted as a carrier, which has a coaxial bore 21 for storage on the drive shaft.
- the cylinder body 2 of the opening roller 1 has teeth 3 on its circumference, the tips of which 36 lie on the tip circle 31.
- On the end faces 22 of the Cylinder body 2 can be arranged flanges 4 as it e.g. 1 in the embodiment of FIG Case is. In the remaining figures, the flanges are 4 not shown, but they can be provided.
- the teeth 3 on the circumference of the cylinder body 2 are spiraled through at least one the circumference of the cylinder 2 extending groove 5 with left or right slope formed, the walls of which Flanks 32 of teeth 3 form while a number of recesses 6 the end faces 33 and back 34 form the teeth 3.
- As shown in Fig. 1, run the recesses 6 transverse to the circumferential direction of the Cylinder body 2 of the opening roller 1 in the direction of Auxiliary line 72, which with the axis 7 of the cylinder body 2 parallel surface line 71 an angle ⁇ forms, whose maximum value should not be greater than 45 ° should.
- the diameter of the flanges 4 corresponds at least the size of the diameter of the tip circle 31 of the teeth 3 of the cylinder body 2.
- the diameter of the Flanges 4 is equal to each other.
- Construction designs of the opening roller 1 can the flanges 4 on the end faces 22 of the cylinder body 2, or only one flange 4 be provided, or it can be the diameter of the Flanges 4 may be different.
- the flanges 4 serve to improve the Guiding the individual fibers on the circumference of the cylinder body 2.
- the flanges 4, the diameter of which is larger than the diameter of the tip circle 31 of the teeth 3 are also used to protect the teeth 3 from Damage, e.g. when laying on a flat surface or when storing opening rollers next to each other.
- the bottom of the spiral groove 5 different shapes that correspond to each technological conditions when separating the Sliver, to a certain quality and / or certain rotational speed of the opening roller 1 tuned are.
- Another important technological Parameter is the negative pressure in the resolver, especially the negative pressure in the zone in which the individual fibers leave the opening roller 1.
- FIG. 3 Another version of the bottom 51 of the Spiral groove 5 is shown in Fig. 3; the bottom is 51 in cross section a continuous arc 52 ', the the edges flowing into the flanks 32 of the teeth 3 transforms.
- FIGS. 5, 6, 7 and 11 Another variant of the Bottom 51 of the spiral groove 5 is in FIGS. 5, 6, 7 and 11 shown.
- the bottom 51 is curved, so that the spiral groove 5 is deeper at the edges than in the middle, whereby they in these marginal zones by arch 52 in the flanks 32 of teeth 3 passes over.
- the depth of the recesses 6, whose Penetration with the spiral groove 5 forms the teeth 3, can be different.
- the depth of the recesses 6 greater than or equal to the depth of the spiral groove 5.
- this version can be made over the width of the cylinder body 2 of the opening roller 1 arranged obliquely Recesses as well as just arranged recesses be applied. The best results through the right, on the respective fiber material, the spinning speed and vacuum conditions coordinated combination of the described Characteristics achieved what in detail through experiments is to be determined in each case.
- the depth of the recesses 6 is equal to the smallest depth 53 the spiral groove 5 and the bottom of the spiral groove 5 is through an arched surface of revolution is formed.
- the 7 is the Depth of the recesses 6 greater than the smallest depth 53 of the spiral groove 5.
- the shaped surface of rotation of the Bottom 51 of the spiral groove 5 is 54 in its curved part through the lower floor surface 61 of the recess 6 interrupted.
- the end faces 33 and the back 34 of the teeth 3 thus formed are larger than that Flanks 32 of the teeth 3, which is particularly the case Loosening of the fibers from the surface of the opening roller 1 has a favorable effect on the fiber separation process.
- the depth of the recesses 6 is smaller than the greatest depth 55 of the spiral groove 5.
- the depth of the recesses 6 is equal to the greatest depth 55 the spiral groove 5, or it can also be larger than that greatest depth 55 of the spiral groove 5.
- the end faces 33 and the back 34 of the teeth 3 extended even more compared to the flanks 32 of the Teeth 3, because the whole shaped surface of rotation of Bottom 51 of the spiral groove 5 through the recesses 6 is interrupted.
- the shape has a cylindrical surface, as shown in FIG. 9, and if at the same time the depth of the recesses 6 is greater than the depth of the spiral groove 5, the cylinder surface of the bottom 51 of the spiral groove 5 through the bottom surfaces 61 of the recesses 6 interrupted.
- the End faces 33 and the back 34 of the thus formed Teeth 3 are larger than the flanks 32 of teeth 3, which particularly affects the detachment of the fibers from the surface of the opening roller 1 and transition in the feed channel at the end of the fiber separation process has a favorable effect.
- the depth of the recesses 6 can be greater than the depth of the spiral groove 5, the bottom 51 the spiral surface 5 forming surface of revolution through the recesses 6 is interrupted.
- the depth of the recesses changes 6 along the length of the recesses 6 or across the width of the opening roller 1, creating the shape the tip of tooth 3 can be changed, e.g. so that the recesses 6 deeper and the teeth 3 are sharper, so that in operation that in the middle of the rotating cylinder body 2 of Opening roller 1 fed sliver through the sharp Teeth 3 of the middle part of the toothed outer circumference of the cylinder body 2 of the opening roller 1 is isolated.
- This way the mass distribution of the sliver fed from the opening roller 1 taken into account what happened at Separation process has a positive effect
- the length of the recesses can be 6 different Take values, but it is not shorter than that Distance between the outer edges of the tooth feet 35 the teeth 3 of the edge rows on the outer circumference of the Cylinder body 2 of the opening roller 1.
- the depth the recesses 6 may be smaller than the depth of the spiral groove 5.
- the most suitable for this version Shape of the bottom 51 the one in which the Cross section of the bottom 51 an arc 52 or Is straight, the depth of the recesses 6 not is larger than the straight flank 32 of the teeth 3. This Execution is particularly high quality for machining Suitable raw material.
- the most stressed part of the The end faces 33 form the surface of the opening roller 1 of the teeth.
- the recesses 6 arranged perpendicular to the spiral groove 5. This means that the angle ⁇ of the deflection of the recesses 6 the helix angle ⁇ of the helix the spiral groove 5 is the same as in FIG. 13 shown.
- the opening roller 1 is the cylinder body 2 made of hardenable Steel made, after completion of the Spiral groove 5 of the cylinder body 2 hardened or at least is partially hardened. After that, either the recesses 6 made, or there may be another Heat treatment can be made. On Another indispensable process is the elimination of the ridge and the edges of the one with the Fibers in contact with the surface of the cylinder body 2 of the opening roller 1. Following this can the surface of the cylinder body 2 with a wear-resistant layer.
- the cylinder body 2 When machining the recesses 6 the cylinder body 2 simultaneously rotates granted. If both the rotational speed of the Cylinder body 2 and the feed rate of the machining tool are constant the recesses 6 in the projection in the plane of Top view a straight direction. If against constant feed rate of the processing tool the rotational speed of the cylinder body 2 varies, the recesses 6 in the Projection into the plane of the top view the shape of a Curve.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
- Fig. 1 -
- eine Vorderansicht der Auflösewalze;
- Fig. 2 -
- ein Detail der Auflösewalze in Seitenansicht;
- Fig. 3 -
- die Ansicht von Fig. 2 gemäß der Schnittlinie A - A;
- Fig. 4 - 7 -
- die Ansicht von Fig. 2 gemäß der Schnittlinie A - A bei verschiedenen Ausführungsförmen der Erfindung;
- Fig. 8 -
- ein Detail der Auflösewalze gemäß Fig. 1 in Seitenansicht;
- Fig. 9 -
- die Ansicht von Fig. 8 gemäß der Schnittlinie A - A;
- Fig. 10 -
- ein Detail einer anderen Ausführung der Erfindung in Seitenansicht;
- Fig. 11 -
- die Ansicht von Fig. 10 gemäß der Schnittlinie A - A;
- Fig. 12 -
- eine Ansicht der Figuren 2, 8 oder 10, gemäß der Schnittlinie B - B;
- Fig. 13 -
- eine andere Ausführung in der Ansicht gemäß Fig. 12.
- 1
- Auflösewalze
- 2
- Zylinderkörper
- 21
- Öffnung
- 22
- Stirnseite des Zylinderkörpers
- 3
- Zähne
- 31
- Kopfkreis der Zähne
- 32
- Zahnflanke
- 33
- Zahnstirnseite
- 34
- Zahnrücken
- 35
- Zahnfuß
- 36
- Zahnspitze
- 4
- Flansch
- 5
- Spiralnut
- 51
- Boden der Spiralnut
- 52
- Vertiefter Teil des Bodens, Bogenübergang
- 52'
- Durchgehender Boden
- 53
- Kleinste Tiefe
- 54
- Gewölbter Teil des Bodens
- 55
- Größte Tiefe
- 6
- Ausnehmungen
- 61
- Bodenflächen der Ausnehmung
- 7
- Achse des Zylinderkörpers der Auflösewalze
- 71
- Mantellinie
- 72
- Hilfsgerade
- α
- Winkel zur Mantellinie der Ausnehmung
- β
- Steigungswinkel der Spiralnut
Claims (17)
- Auflösewalze einer Faservereinzelungsvorrichtung einer Offen-End-Spinnvorrichtung mit einem Zylinderkörper (2), der an seinem äußeren Umfang mit Zähnen (3) ausgestattet ist, die durch die Durchdringung wenigstens einer Spiralnut (5) mit einer Anzahl von Ausnehmungen (6) gebildet sind,
dadurch gekennzeichnet, daß
die Ausnehmungen (6) am Umfang des Zylinderkörpers (2) in einem Winkel (α) zu der mit der Achse (7)des Zylinderkörpers (2) parallelen Mantellinie (71) verlaufen, der Winkel (α) nicht größer als 45° ist, und daß die Ausnehmungen (6) in zur Spiralnut (5) senkrechter Richtung gebildet sind. - Auflösewalze nach Anspruch 1, dadurch gekennzeichnet, daß der Boden (51) der Spiralnut (5) im Querschnitt die Form eines an den Rändern stufenlos in die Flanken (32) der Zähne (3) übergehenden Bogens (52') hat.
- Auflösewalze nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Boden (51) der Spiralnut (5) im Querschnitt die Form einer an den Rändern durch Bögen (52) in die Flanken (32) der Zähne (3) übergehenden Geraden hat.
- Auflösewalze nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Boden (51) der Spiralnut (5) im Querschnitt eine Wölbung (54 aufweist.
- Auflösewalze einer Faservereinzelungsvorrichtung einer Offen-End-Spinnvorrichtung mit einem Zylinderkörper (2), der an seinem äußeren Umfang mit Zähnen (3) ausgestattet ist, die durch die Durchdringung wenigstens einer Spiralnut (5) mit einer Anzahl von Ausnehmungen (6) gebildet sind, dadurch gekennzeichnet, daß der Boden (51) der Spiralnut (5) im Querschnitt eine Wölbung (54) aufweist.
- Auflösewalze nach Anspruch 5, dadurch gekennzeichnet, daß die Wölbung (54) des Bodens (51) an den Rändern durch Bögen (52) in die Flanken (32) der Zähne (3) übergeht.
- Auflösewalze nach einen oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Seitenwände der Spiralnut (5) derart ausgebildet sind, daß sich die Spiralnut (5) vom Boden (51)zur Zahnspitze (36) hin erweitert.
- Auflösewalze nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Tiefe der Ausnehmungen (6) größer als die Tiefe der Spiralnut (5) ist.
- Auflösewalze einer Faservereinzelungsvorrichtung einer Offen-End-Spinnvorrichtung mit einem Zylinderkörper (2), der an seinen äußeren Umfang mit Zähnen ausgestattet ist, die durch die Durchdringung wenigstens einer Spiralnut (5) mit einer Anzahl von Ausnehmungen (6) gebildet sind, dadurch gekennzeichnet, daß die Tiefe der Ausnehmungen (6) größer als die Tiefe der Spiralnut (5) ist.
- Auflösewalze nach Anspruch 9, dadurch gekennzeichnet, daß die Tiefe der Ausnehmungen (6) um ein zwischen 0,05 und 0,5 liegendes Vielfaches größer als die Tiefe der Spiralnut (5) ist.
- Auflösewalze nach einem oder mehreren der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Tiefe der Ausnehmungen (6) sich über den Umfang des Zylinderkörpers (2) zyklisch verändert.
- Auflösewalze nach einem oder mehreren der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die Tiefe der Ausnehmungen (6) über die Breite des Außenumfangs des Zylinderkörpers (2) der Auflösewalze (1) variiert.
- Auflösewalze nach einem oder mehreren der Ansprüche 1 bis 7, 11 und 12, ohne 8 bis 10, dadurch gekennzeichnet, daß die Tiefe der Ausnehmungen (6) kleiner als die Tiefe der Spiralnut (5) ist.
- Auflösewalze nach einem oder mehreren der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß an den Stirnseiten (22) des Zylinderkörpers (2) Flansche (4) vorgesehen sind, deren Durchmesser mindestens dem Durchmesser des Kopfkreises (31) der Zähne (3) entspricht.
- Auflösewalze nach einem oder mehreren der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß der Zylinderkörper (2) aus härtbarem Stahl gefertigt ist.
- Auflösewalze nach einem oder mehreren der Ansprüche 1 bis 7, 11, 13, 14 und 15, ohne 8 bis 10 und 13, dadurch gekennzeichnet, daß die Tiefe der Ausnehmungen (6) gleich groß ist wie die Tiefe der Spiralnut (5).
- Verfahren zur Herstellung der Auflösewalze nach einem oder mehreren der Ansprüche 1 bis 18, dadurch gekennzeichnet, daß dem Zylinderkörper (2) bei der Fertigung der Ausnehmungen (6) eine Drehbewegung um seine Drehachse erteilt wird.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZ106093 | 1993-06-03 | ||
| CZ931061A CZ280033B6 (cs) | 1993-06-03 | 1993-06-03 | Vyčesávací váleček ojednocovacího ústrojí |
| CZ931060A CZ279649B6 (cs) | 1993-06-03 | 1993-06-03 | Vyčesávací váleček ojednocovacího ústrojí bezvřetenového dopřádacího stroje a způsob jeho výroby |
| CZ106293 | 1993-06-03 | ||
| CZ931062A CZ279219B6 (cs) | 1993-06-03 | 1993-06-03 | Vyčesávací váleček ojednocovacího ústrojí bezvřetenového dopřádacího stroje |
| CZ106193 | 1993-06-03 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0627510A1 EP0627510A1 (de) | 1994-12-07 |
| EP0627510B1 EP0627510B1 (de) | 2000-09-20 |
| EP0627510B2 true EP0627510B2 (de) | 2004-11-24 |
Family
ID=27179631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94108472A Expired - Lifetime EP0627510B2 (de) | 1993-06-03 | 1994-06-01 | Auflösewalze für eine O-E-Spinnvorrichtung und Verfahren zu ihrer Herstellung |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0627510B2 (de) |
| DE (1) | DE59409525D1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10224188A1 (de) * | 2002-05-31 | 2003-12-11 | Schlafhorst & Co W | Auflösewalzeneinheit eines Offenend-Spinnaggregats |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD210714A1 (de) † | 1982-10-12 | 1984-06-20 | Ver Baumwollspinnereien Und Zw | Kompaktzahnring zur faservereinzelung an offen-end-spinnmaschinen |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH319180A (de) * | 1953-07-14 | 1957-02-15 | Streiff V Orelli Fritz | Sägezahnganzstahlgarnitur an Deckeln von Deckelkarden |
| CH502450A (de) * | 1969-02-28 | 1971-01-31 | Vyzk Ustav Bavlnarsky | Kämmwalze zum Auflösen eines Faserbandes in einzelne Fasern für spindellose Feinspinnmaschinen |
| CS228288B1 (en) * | 1981-12-07 | 1984-05-14 | Jindrich Strmiska | Combing bar for clearing and tearing up textile materials,particularly cotton type materials on a cleaning machine |
| DE3827344C2 (de) * | 1988-08-12 | 1997-07-10 | Fritz Stahlecker | Garniturring für Auflösewalzen von Spinnmaschinen |
-
1994
- 1994-06-01 EP EP94108472A patent/EP0627510B2/de not_active Expired - Lifetime
- 1994-06-01 DE DE59409525T patent/DE59409525D1/de not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD210714A1 (de) † | 1982-10-12 | 1984-06-20 | Ver Baumwollspinnereien Und Zw | Kompaktzahnring zur faservereinzelung an offen-end-spinnmaschinen |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0627510A1 (de) | 1994-12-07 |
| EP0627510B1 (de) | 2000-09-20 |
| DE59409525D1 (de) | 2000-10-26 |
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| DE690560C (de) | Einrichtung zum Verdichten eines Faserbandes |
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