EP0529227B1 - Curseur pour un anneau à paroi inclinée - Google Patents

Curseur pour un anneau à paroi inclinée Download PDF

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Publication number
EP0529227B1
EP0529227B1 EP92110611A EP92110611A EP0529227B1 EP 0529227 B1 EP0529227 B1 EP 0529227B1 EP 92110611 A EP92110611 A EP 92110611A EP 92110611 A EP92110611 A EP 92110611A EP 0529227 B1 EP0529227 B1 EP 0529227B1
Authority
EP
European Patent Office
Prior art keywords
traveller
ring
arms
longer
amounts
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
EP92110611A
Other languages
German (de)
English (en)
Other versions
EP0529227A1 (fr
Inventor
Franz Oberholzer
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.)
Braecker AG
Original Assignee
Braecker AG
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 Braecker AG filed Critical Braecker AG
Publication of EP0529227A1 publication Critical patent/EP0529227A1/fr
Application granted granted Critical
Publication of EP0529227B1 publication Critical patent/EP0529227B1/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
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/52—Ring-and-traveller arrangements
    • D01H7/60—Rings or travellers; Manufacture thereof not otherwise provided for ; Cleaning means for rings
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/52—Ring-and-traveller arrangements
    • D01H7/60—Rings or travellers; Manufacture thereof not otherwise provided for ; Cleaning means for rings
    • D01H7/604—Travellers

Definitions

  • the invention relates to a ring traveler for an inclined flange ring of a ring spinning or ring twisting machine according to the preamble of claim 1.
  • a ring traveler of this type is known from DE-GM 78 14 259.
  • the two straight parts of the connecting piece which are connected to one another by an arcuate part, run at the same angles to the parallel rotor legs and are of equal length.
  • the connecting piece therefore has a symmetrical configuration with the aim of increasing the distance of the tip or apex from the top of the ring in order to create a sufficiently large thread passage.
  • a ring traveler has become known from US Pat. No. 4,481,764, in which the thread run is provided with a less narrow path than the above-mentioned runner with a symmetrical configuration of the connecting piece delimiting the thread passage.
  • the asymmetrically designed connecting piece between the two runner legs has a first part designed as a quarter-circle arc and a straight second part, the latter connecting to the longer runner leg. The load on the connecting piece by the thread is distributed over a larger area as a result of the free path created with the quarter-circle arc.
  • the applicant has been introducing runners for inclined flange rings under the name "SU-BM", which also has an asymmetrically designed and comparatively highly protruding connecting piece.
  • the parts directly adjoining the arcuate part on both sides are formed here by different long straight parts, of which the longer of the two is adjacent to the longer runner leg.
  • the asymmetry serves the goal of increasing the thread passage or allowing it to take place further away from the top of the ring.
  • the dust deposits during operation show that there is considerable fiber abrasion on the ring and that the intended goal has not been achieved.
  • the runner mentioned is also unsatisfactory because the relatively large amount of wire material requires an extension of the runner at the foot in order to balance the mass distribution. Accordingly, the rotor must be made of relatively thin wire for a given total mass, which is not conducive to the distribution and dissipation of the frictional heat and thus does not allow high production rates.
  • the object of the present invention is to provide the runner with a configuration which determines its position relative to the ring when it rotates on the ring, both with regard to its own running behavior and also in optimize with respect to the thread run.
  • the position of the runner in relation to the ring in relation to it is of great importance both for the spinning process and for the wear of the runner, which is of primary interest here.
  • the solution of the object according to the invention is based on the insight that an increase in performance without reducing the rotor service life by influencing this position by means of the design of the rotor in its main dimensions is possible to an unexpected extent.
  • the design of the connecting piece for influencing the position of the thread passage on the rotor and the passage conditions also contributes to a further increase in performance.
  • the specified ratio between length and width of the rotor according to the invention places its center of gravity relatively high on the ring and at a relatively large distance from its running surface.
  • the selected asymmetrical position of the thread passage which is precisely defined in the radial direction by the connecting piece, has the extremely advantageous consequence that the runner assumes both a reduced angle of inclination (viewed in elevation) and a smaller deflection angle (viewed in plan) when rotating around a radial plane of the ring . It can be assumed that this runner position is due, among other things, to the comparatively short lever arm between the point of application of the thread tension and the result of the length-width ratio of the runner Location of the center of gravity is due. The comparatively small distance between the point of application of the braking forces of the ring and the center of gravity should also have an advantageous effect for the small angle of inclination.
  • the width of the runner in the thread path is of decisive importance. This width results on the one hand from the relatively large angle enclosed by the straight parts and on the other hand from the comparatively large radius of the circular-arc-shaped part.
  • the runner according to the invention maintains a stable position due to the precisely defined thread passage or the thread tension which always acts in the same way. It is therefore possible to make better use of the clear rotor cross-section and to save wire length by reducing the main dimensions accordingly. With the same required rotor weight, an enlarged proportion of the same can therefore be laid in the material cross section of the wire or of the rotor formed therefrom.
  • the comparatively large material cross section favors the rapid distribution and dissipation of the frictional heat in the rotor. This, as well as the more even wear of the counter surface due to the smaller deflection angle, results in a considerable extension of its service life.
  • the position of the rotor on the ring also makes optimal use of the dimensions created by the design of the connecting piece for the thread passage, so that the risk of thread friction on the top of the ring is avoided despite the shortening of the clear height. It should be noted here that the relatively large angle between the straight parts of the connector together with the large radius of the arcuate part allows the thread passage anyway close to the apex of the connector.
  • FIG. 1 denotes a longer, in relation to the position on a ring of inner, straight runner legs, to which a shorter, straight runner leg 3 connects via a curved piece 2 and a connecting piece generally identified by 10.
  • the arc piece 2 has the radius R2.
  • the runner legs 1 and 3 run approximately parallel to one another at a distance 4. This distance 4 is subsequently understood as a reference variable for the dimensions on the runner.
  • On the side of the runner leg 3 facing away from the connecting piece, the latter is connected to an engagement piece 6 via a quarter-circle arc piece 5 with the radius R5.
  • the engagement piece 6, which is accordingly in the right Extends angle to the runner legs 1 and 3, limited with the longer of the same a placement gap 7.
  • the connecting piece 10 is formed from two straight parts 11 and 12, an arcuate part 13 lying between them and an arc section 14.
  • the straight part 11 is connected directly to the curved piece 2 and forms an angle ⁇ with the runner leg 1, while the angle 12 enclosed with the other straight part 12 is ⁇ .
  • the arcuate part 13 forms at the intersection of an axis 15 a vertex 16 of the connector 10.
  • the axis 15, which thus contains the center 17 for the radius R13, runs parallel to the rotor legs 1 and 3 and they is distanced from the longer one by the measure 18.
  • a straight line 19 which runs at right angles to the axis 15 and connects the ends of the rotor legs 1 and 3 adjacent to the connecting piece 10, the apex 16 is removed by the dimension 20.
  • the runner formed from steel wire has a semicircular cross section and the rounded side is directed inwards so that it forms the inside. Runners with such a cross-sectional configuration are known.
  • the rounded inside of the rotor forms the counter surface 8 for the interaction in the region of the rotor leg 1 and the curved piece 2 with the tread of an inclined flange ring. This will be discussed in more detail in connection with the explanation of FIGS. 2 to 4.
  • the thickness 23, together with the width of the wire cross section, is selected in accordance with the rotor weight required for the processing of a specific thread and, in the case of the rotor according to the invention, can also be large, thanks to the short wire length.
  • Running tests were carried out on slanted flange rings 50 of the type shown in FIG. In this FIG. 2, the thread 70 processed by the runner 60 is shown together with the cops 80.
  • the rings 50 had an inside diameter of 36-45 mm, an angle of 33 ° typical for the inclination of the slightly convexly curved partial running surface 52.
  • the radius of the circularly curved upper partial contact surface 54 was 1 mm.
  • FIG. 3 and 4 show the actual position of a rotor 60 according to the invention on a ring 50 in spinning mode.
  • Fig. 3 which shows the rotor viewed from the inside of the ring, the inclination of the Rotor 60 can be seen relative to an axial plane 56 of the ring 50.
  • This shows the importance of a small angle of inclination ⁇ for optimal utilization of the rotor cross-section in relation to its clear height 22 and in particular for a sufficient thread passage above the top 51 of the ring 50 given the dimensions of the rotor 60.
  • the free and usable for the thread passage cross section between the ring top and the connector 10 is obviously larger, the smaller the angle ⁇ can be kept. With the rotor according to the invention, it is possible to keep this angle below 20 °, and one of 18 ° was determined for the dimensions given in the preferred exemplary embodiment.
  • FIG. 4 shows the position of the rotor in the plan relative to the axial plane 56 of the ring 50, makes it clear that the rotor according to the invention experiences a slight deflection under the effect of the thread tension thanks to the design described.
  • the counter surface 8 (FIG. 1) of the rotor rests with a wide contact surface on the partial contact surface 52 of the ring. This favors the distribution of the frictional heat and facilitates its dissipation.
  • ⁇ values around 10 ° were determined with the rotor according to the invention.
  • the longer runner leg does not necessarily have to be straight, but can have a slight curvature such that the counter surface is convexly curved.
  • Runners according to the invention can of course be placed on the market on storage or magazine bars and can remain on the bars until they are used.
  • the bars expediently have a cross section which is adapted to the internal shape and size of the runners to the extent that correspondence areas are assigned to the runner legs (e.g. 1 or 3 in FIG. 1) are.
  • the distance between these surfaces should preferably not be less than the distance 4 reduced by a runner wire thickness in order to avoid entanglement of adjacent runners.
  • Corresponding corners of a z. B. be generally rectangular rod cross section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (7)

  1. Curseur pour anneau à bride inclinée d'une machine à filer ou à retordre à anneau, comprenant deux branches (1, 3) de curseur orientées à peu près de la même manière, parmi lesquelles la branche longue comporte la contre-surface (8) destinée à l'appui sur la portée de l'anneau et la branche courte comporte un élément de prise (6) incliné vers l'intérieur prévu pour venir en prise avec un épaulement de l'anneau, et un élément de liaison (10) qui s'étend entre les deux branches du curseur et comporte deux parties droites (11, 12) formant entre elles un angle obtus (β) parmi lesquelles la première se raccorde par un élément incurvé (2) à la branche longue (1) du curseur, et une partie en forme d'arc de cercle (13) qui relie entre elles ces parties droites et forme un sommet (16) dont la distance (18) à la branche longue du curseur est plus grande que sa distance à la branche courte, caractérisé en ce que l'extension longitudinale (21) du curseur est approximativement de 215% de la distance (4) entre les deux branches du curseur, et la distance partielle (18) entre la branche longue du curseur et un axe (15) à peu près parallèle aux branches du curseur et passant par le sommet est égale à environ 54% de cette distance.
  2. Curseur selon la revendication 1, caractérisé en ce que la hauteur (20) du sommet au-dessus d'une droite imaginaire de liaison (19) entre les extrémités, proches de l'élément de liaison, des branches du curseur est égale à environ 50% de la distance (4) et le rayon (R₁₃) de la partie en forme d'arc de cercle, dont le centre (17) est situé sur l'axe, correspond à environ 35% de cette distance, et en ce que l'angle (β) inclus entre les parties droites de l'élément de liaison est d'environ 110° et l'angle (α) compris entre la branche longue du curseur et la partie droite voisine (11) est d'environ 125°.
  3. Curseur selon la revendication 1 ou 2, caractérisé en ce que le rayon de l'élément incurvé (2) est égal à environ 41% de la distance (4) entre les branches (1, 3) du curseur.
  4. Curseur selon l'une des revendications précédentes, caractérisé en ce que la branche longue du curseur présente une légère courbure convexe sur le côté de la contre-surface.
  5. Utilisation du curseur selon l'une des revendications 1 à 4 sur un anneau à bride inclinée dans lequel le rayon de la portée partielle supérieure (54) de l'élément incurvé (2) du curseur (60) est égal à environ 34% de la distance (4) entre les branches (1, 3) de curseur.
  6. Utilisation selon la revendication 5, caractérisée en ce que l'angle compris entre une ligne imaginaire de liaison entre les zones d'extrémités de la portée partielle inférieure (52) à courbure convexe (52) et l'axe de l'anneau est de 33°.
  7. Utilisation selon la revendication 4, où la branche longue du curseur est incurvée de façon convexe sur sa contre-surface, caractérisée en ce que la génératrice de la portée inférieure de l'anneau est rectiligne.
EP92110611A 1991-08-13 1992-06-24 Curseur pour un anneau à paroi inclinée Expired - Lifetime EP0529227B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH238891 1991-08-13
CH2388/91 1991-08-13

Publications (2)

Publication Number Publication Date
EP0529227A1 EP0529227A1 (fr) 1993-03-03
EP0529227B1 true EP0529227B1 (fr) 1994-12-14

Family

ID=4232621

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92110611A Expired - Lifetime EP0529227B1 (fr) 1991-08-13 1992-06-24 Curseur pour un anneau à paroi inclinée

Country Status (6)

Country Link
US (2) US5297380A (fr)
EP (1) EP0529227B1 (fr)
JP (1) JPH07107208B2 (fr)
KR (1) KR950004487B1 (fr)
DE (1) DE59200965D1 (fr)
TR (1) TR26247A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6027998B2 (ja) * 2014-04-16 2016-11-16 株式会社豊田自動織機 リング式紡機の液潤滑の無いリング／トラベラ系

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831313A (en) * 1955-01-10 1958-04-22 Du Pont Ring traveler
DE1284338B (de) * 1962-10-19 1968-11-28 Vnii Tekstilnogo I Ljogkogo Ma Zwirnvorrichtung fuer Spinn- und Zwirnmaschinen
US3159963A (en) * 1962-10-19 1964-12-08 Zakharov Grigory Nickolajevich Ring for spinning and twisting frames and traveller for the same
GB1578552A (en) * 1977-05-14 1980-11-05 Eadie Bros & Co Ltd Travellers for ring spinning machines
DE7929378U1 (de) * 1978-11-06 1980-02-28 Rieter Deutschland Gmbh, 7410 Reutlingen Spinnring mit Innenring
DE3272364D1 (en) * 1982-01-18 1986-09-04 Rieter Ag Maschf Traveller for a ring-spinning machine

Also Published As

Publication number Publication date
TR26247A (tr) 1995-02-15
DE59200965D1 (de) 1995-01-26
USRE35139E (en) 1996-01-02
JPH07107208B2 (ja) 1995-11-15
EP0529227A1 (fr) 1993-03-03
JPH07189053A (ja) 1995-07-25
KR950004487B1 (ko) 1995-05-01
US5297380A (en) 1994-03-29
KR930004526A (ko) 1993-03-22

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