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EP0627510B2 - Cylindre peigneur pour une machine à filer à bout libre et méthode pour fabriquer celui-ci - Google Patents
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EP0627510B2 - Cylindre peigneur pour une machine à filer à bout libre et méthode pour fabriquer celui-ci - Google Patents

Cylindre peigneur pour une machine à filer à bout libre et méthode pour fabriquer celui-ci Download PDF

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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
Application number
EP94108472A
Other languages
German (de)
English (en)
Other versions
EP0627510B1 (fr
EP0627510A1 (fr
Inventor
Milos Mladek
Oldrich Tesar
Jaroslav Kaplan
Ladislav Pirkl
Dobroslav Musil
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.)
Rieter Elitex AS
Original Assignee
Rieter Elitex AS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27179631&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0627510(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from CZ931060A external-priority patent/CZ279649B6/cs
Priority claimed from CZ931062A external-priority patent/CZ279219B6/cs
Priority claimed from CZ931061A external-priority patent/CZ280033B6/cs
Application filed by Rieter Elitex AS filed Critical Rieter Elitex AS
Publication of EP0627510A1 publication Critical patent/EP0627510A1/fr
Application granted granted Critical
Publication of EP0627510B1 publication Critical patent/EP0627510B1/fr
Publication of EP0627510B2 publication Critical patent/EP0627510B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)

Claims (17)

  1. Cylindre d'ouvraison d'un dispositif d'individualisation de fibres d'un métier à filer à bouts libres avec un corps de cylindre (2) qui, sur sa circonférence extérieure, est doté de dents (3) qui sont formées par la pénétration d'au moins une rainure spirale (5) comportant un certain nombre d'évidements (6),
    caractérisé en ce que
    les évidements (6) à la circonférence du corps de cylindre (2) s'étendent dans un angle (a) à la ligne de couverture (71) parallèle à l'axe (7) du corps de cylindre (2), que l'angle (a) n'est pas supérieur à 45° et que les évidements (6) sont formés dans la direction perpendiculaire à la rainure spirale (5).
  2. Cylindre d'ouvraison selon la revendication de brevet 1, caractérisé en ce que le fond (51) la rainure spirale (5) comporte en section transversale la forme d'un arc (52') qui, en zone de bordure, se transforme continuellement en les flancs (32) des dents (3).
  3. Cylindre d'ouvraison selon l'une quelconque des revendications de brevet 1 ou 2, caractérisé en ce que le fond (51) la rainure spirale (5) comporte en section transversale la forme d'une droite qui, en zone de bordure, se transforme continuellement en les flancs (32) des dents (3) par des arcs (52).
  4. Cylindre d'ouvraison selon l'une quelconque ou plusieurs des revendications de brevet 1 à 3, caractérisé en ce que le fond (51) la rainure spirale (5) comporte en section transversale une incurvation (54).
  5. Cylindre d'ouvraison d'un dispositif d'individualisation de fibres d'un métier à filer à bouts libres avec un corps de cylindre (2) qui, sur sa circonférence extérieure, est doté de dents (3) qui sont formées par la pénétration d'au moins une rainure spirale (5) comportant un certain nombre d'évidements (6), caractérisé en ce que le fond (51) la rainure spirale (5) comporte en section transversale une incurvation (54).
  6. Cylindre d'ouvraison selon la revendication de brevet 5, caractérisé en ce que l'incurvation (54) du fond (51), en zone de bordure, se transforme continuellement en les flancs (32) des dents (3) par des arcs (52).
  7. Cylindre d'ouvraison selon l'une quelconque ou plusieurs des revendications de brevet 1 à 6, caractérisé en ce que les parois latérales de la rainure spirale (5) se présente sous une forme telle que la rainure spirale (5) s'élargit du fond (51) vers la pointe des dents (36).
  8. Cylindre d'ouvraison selon l'une quelconque ou plusieurs des revendications de brevet 1 à 7, caractérisé en ce que la profondeur des évidements (6) est supérieure à la profondeur de la rainure spirale (5).
  9. Cylindre d'ouvraison d'un dispositif d'individualisation de fibres d'un métier à filer à bouts libres avec un corps de cylindre (2) qui, sur sa circonférence extérieure, est doté de dents (3) qui sont formées par la pénétration d'au moins une rainure spirale (5) comportant un certain nombre d'évidements (6), caractérisé en ce que la profondeur des évidements (6) est supérieure à la profondeur de la rainure spirale (5).
  10. Cylindre d'ouvraison selon la revendication de brevet 9, caractérisé en ce que la profondeur des évidements (6) est supérieure à la profondeur de la rainure spirale (5) d'un facteur de multiplication variant entre 0,05 et 0,5.
  11. Cylindre d'ouvraison selon l'une quelconque ou plusieurs des revendications de brevet 1 à 10, caractérisé en ce que la profondeur des évidements (6) se modifie cycliquement sur la circonférence du corps de cylindre (2).
  12. Cylindre d'ouvraison selon l'une quelconque ou plusieurs des revendications de brevet 1 à 11, caractérisé en ce que la profondeur des évidements (6) varie sur la largeur de la circonférence extérieure dur corps de cylindre (2) du cylindre d'ouvraison (1).
  13. Cylindre d'ouvraison selon l'une quelconque ou plusieurs des revendications de brevet 1 à 7, 11 et 12, sans les revendications de brevet 8 à 10, caractérisé en ce que la profondeur des évidements (6) est plus faible que la profondeur de la rainure spirale (5).
  14. Cylindre d'ouvraison selon l'une quelconque ou plusieurs des revendications de brevet 1 à 13, caractérisé en ce qu'il est prévu sur les faces frontales (22) du corps de cylindre (2) des brides (4), dont le diamètre correspond au moins au diamètre du cercle de tête (31) des dents (3).
  15. Cylindre d'ouvraison selon l'une quelconque ou plusieurs des revendications de brevet 1 à 14, caractérisé en ce que le corps de cylindre (2) est réalisé en acier apte à la trempe.
  16. Cylindre d'ouvraison selon l'une quelconque ou plusieurs des revendications de brevet 1 à 7, 11, 12, 14 et 15, sans les revendications de brevet 8 à 10 et 13, caractérisé en ce que la profondeur des évidements (6) est aussi grande que la profondeur de la rainure spirale (5).
  17. Procédé pour la fabrication du cylindre d'ouvraison selon l'une quelconque ou plusieurs des revendications de brevet 1 à 16, caractérisé en ce qu'il est transmis au corps de cylindre (2), lors de la réalisation des évidements (6), un mouvement de rotation par rapport à son axe de rotation.
EP94108472A 1993-06-03 1994-06-01 Cylindre peigneur pour une machine à filer à bout libre et méthode pour fabriquer celui-ci Expired - Lifetime EP0627510B2 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CZ106293 1993-06-03
CZ931060A CZ279649B6 (cs) 1993-06-03 1993-06-03 Vyčesávací váleček ojednocovacího ústrojí bezvřetenového dopřádacího stroje a způsob jeho výroby
CZ931062A CZ279219B6 (cs) 1993-06-03 1993-06-03 Vyčesávací váleček ojednocovacího ústrojí bezvřetenového dopřádacího stroje
CZ106093 1993-06-03
CZ106193 1993-06-03
CZ931061A CZ280033B6 (cs) 1993-06-03 1993-06-03 Vyčesávací váleček ojednocovacího ústrojí

Publications (3)

Publication Number Publication Date
EP0627510A1 EP0627510A1 (fr) 1994-12-07
EP0627510B1 EP0627510B1 (fr) 2000-09-20
EP0627510B2 true EP0627510B2 (fr) 2004-11-24

Family

ID=27179631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94108472A Expired - Lifetime EP0627510B2 (fr) 1993-06-03 1994-06-01 Cylindre peigneur pour une machine à filer à bout libre et méthode pour fabriquer celui-ci

Country Status (2)

Country Link
EP (1) EP0627510B2 (fr)
DE (1) DE59409525D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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
EP0627510B1 (fr) 2000-09-20
EP0627510A1 (fr) 1994-12-07
DE59409525D1 (de) 2000-10-26

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