EP0269115B1 - Dispositif d'entraînement des lances pour métiers à tisser - Google Patents

Dispositif d'entraînement des lances pour métiers à tisser Download PDF

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Publication number
EP0269115B1
EP0269115B1 EP87117509A EP87117509A EP0269115B1 EP 0269115 B1 EP0269115 B1 EP 0269115B1 EP 87117509 A EP87117509 A EP 87117509A EP 87117509 A EP87117509 A EP 87117509A EP 0269115 B1 EP0269115 B1 EP 0269115B1
Authority
EP
European Patent Office
Prior art keywords
axis
projection
gripper
connection
crank arm
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
EP87117509A
Other languages
German (de)
English (en)
Other versions
EP0269115A3 (en
EP0269115A2 (fr
Inventor
Heinz Maassen
Günter Meyer
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.)
N.V. MICHEL VAN DE WIELE
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0269115A2 publication Critical patent/EP0269115A2/fr
Publication of EP0269115A3 publication Critical patent/EP0269115A3/de
Application granted granted Critical
Publication of EP0269115B1 publication Critical patent/EP0269115B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/271—Rapiers
    • D03D47/273—Rapier rods
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/275—Drive mechanisms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18272—Planetary gearing and slide

Definitions

  • the invention relates to a rapier bar drive for weaving machines according to the preamble of claim 1.
  • a gear of the type mentioned above which is also referred to as a cycloid gear, has proven itself in principle.
  • the path that the gripper rod executes during its outward or return movement is determined by the selected dimensions of the gear parts. It is equal to four times the effective length of the crank arm or the link lever. The path length is thus fixed.
  • the invention has for its object to provide a rapier rod drive for weaving machines of the type mentioned, which allows an easy to carry out change in the drive stroke, without the risk of misalignment.
  • crank arm and link lever A costly and time-consuming exchange of crank arm and link lever is not necessary.
  • the corresponding plug-in connection is momentarily released and restored after rotation by 180 °. This is quick and easy to do.
  • the change in the effective length of the corresponding part is exactly predetermined by the eccentricity. There is no risk of unintentional self-regulation.
  • the gripper bar drive shown in FIGS. 1 to 4 has an isosceles straight thrust crank gear as a so-called cycloid gear, which has a drive shaft 1 which is rotatably mounted on a carrier 100, a toothed sun wheel 2, a crank arm 3, which is arranged coaxially to the carrier 100 and is fixedly attached to the carrier 100 in this rotatably mounted crank pin 4, a toothed planet gear 5 fastened thereon, a linkage lever 6 detachably connected to the crank pin 4 and a gear connection between the sun gear 2 and the planet gear 5 formed by a toothed belt 7 indicated by a dot-dash line.
  • a articulation pin 8 for a gripper bar 9 indicated by dash-dotted lines.
  • the drive shaft 1 is mounted on a carrier 100 to which the sun gear 2 is also rigidly attached.
  • the distance between the axis of the drive shaft 1 and the axis of the crank pin 4 is denoted by L K and the distance between the axis of the crank pin 4 and the axis of the pivot pin 8 by the letter L H.
  • L K the distance between the axis of the drive shaft 1 and the axis of the crank pin 4
  • L H the distance between the axis of the crank pin 4 and the axis of the pivot pin 8
  • connection between the crank arm 3 and the drive shaft 1 and the connection between the link lever 6 and the crank pin 4 each contain a fastening attachment attached to the drive shaft 1 or the crank pin 4 at the upper end of these parts 10, whose supply axis (central axis) M is eccentric to the axis of the drive shaft 1 or the crank pin 4 by the amount e.
  • the crank arm 3 and the articulation lever 6 have receiving openings 13 and 16 for the fastening lugs 10.
  • the parts are expediently connected to one another by means of screws or similar fastening means, which are only indicated schematically in FIGS. 2 and 4 at the number 11. There may be two or more such screws or the like.
  • the drive is shown in a setting in which the effective lengths L K and L H of the crank arm 3 and the articulation lever 6 have their greatest value, so that the path of the rectilinear gripper rod 9 is greatest .
  • Fig. 5 is shown by the amount e eccentric attachment projection 10 on the upper end of the drive shaft 1 or the crank pin 4 on a larger scale.
  • the receiving opening 13 or 16 in the crank arm 3 or in the articulation lever 6 can in particular have the shape of a downwardly open recess. Fastening screws are only indicated here with the number 11.
  • the fastening sets 10 can in particular have a boundary surface 14 that is rotationally symmetrical with respect to the projection axis M.
  • This can be a cylindrical surface or a surface of another shape, particularly advantageously also a conical surface or a surface composed of several shapes. With 11a threaded holes for screws are designated.
  • FIG. 7 shows a fastening projection 10 designed as a polygon 15. This can be a hexagon or a shape with a different (even) number of edges. Accordingly, the receiving opening is formed in the crank arm or in the articulation lever.
  • a shortening or lengthening of the gripper rod path can be achieved by simply moving the crank arm and the articulation lever. With a rotationally symmetrical shape, intermediate settings can also be achieved. If it is fastened with screws, then mounting holes for the screws are provided at corresponding angular positions. In the context of the invention, however, it is also in such and other designs to effect the fixing of the crank arm or the articulation lever on a fastening attachment by clamping.
  • the fastening end of the crank arm or the articulation lever can be designed, e.g. slotted so that it can be attached in the desired position by means of clamping screws.
  • crank arm 3 and the articulation lever 6 have elongated holes 18 for the passage of fastening screws 19. Depending on the position in which the crank arm 3 or the articulation lever 6 is fastened, this also results in a shortening or lengthening of the path of the gripper bar.
  • the ends of the elongated holes can serve as fixed end positions.
  • 11 and 12 schematically show an embodiment of the drive in which a toothed belt 7 is provided as a gear connection between the sun gear 2 and the planet gear 5. If the effective length of the crank arm 3 and the articulation lever 6 is adjusted, it is possible without difficulty that replace the timing belt that fits one setting with a length that matches the other setting. The design can also be made so that a compensation can be done by a tensioning device for the toothed belt 7.
  • 11 and 12 only schematically show a tension roller 21 which can be adjusted by any amount V in the direction of the arrow with the aid of suitable means available to the person skilled in the art.
  • FIG. 13 and 14 show an embodiment in which an intermediate gear 22 is provided as a gear connection between the sun gear 2 and the planet gear 5.
  • the bearing 23 of this intermediate gear 22 can be adjusted in the direction of the arrow in a guide slot 24 by an amount V required in each case if the effective length of the crank arm 3 or the articulation lever 6 is changed.
  • the guide slot 24 is provided in an extension 25 of the crank arm 3. Additional mounting and adjusting means for such an adjustable bearing are available to the person skilled in the art.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (9)

  1. Entraînement des lances pour métier à tisser comprenant:
    - un arbre d'entraînement (1) monté à rotation sur un support (100) avec un axe d'arbre,
    - un bras de manivelle (3) longitudinal, qui peut être relié de manière résistant à la torsion avec l'arbre d'entraînement (1) dans la zone d'une de ses deux extrémités,
    - un maneton de manivelle (4) avec un axe de maneton, qui est monté à rotation sur le bras de manivelle (3) dans la zone de son autre extrémité,
    - un levier articulé longitudinal (6), qui peut être raccordé au maneton de manivelle (4) de manière résistant à la torsion dans la zone d'une de ses deux extrémités et dont l'autre extrémité est conformée avec un élément de liaison (8) pour la relier à une lance (9),
    - une roue solaire (2) maintenue sur le support (100) et agencée coaxialement avec l'arbre d'entraînement (1),
    - une roue planétaire (5) reliée au maneton de manivelle (4) de manière résistant à la torsion,
    - une liaison d'entraînement (7, 22) entre la roue solaire (2) et la roue planétaire (5),
    caractérisé en ce qu'au moins une des pièces, à savoir l'arbre d'entraînement (1) et le maneton de manivelle, est reliée au bras de manivelle (3) ou au levier articulé (6), respectivement, par une liaison à fiches, un axe de la liaison à fiches étant parallèle à l'axe de l'arbre ou à l'axe du maneton et écarté de ceux-ci d'une distance d'excentricité (e), comprenant une saillie (10) agencée sur une des deux parties à relier respectivement l'une à l'autre, l'arbre d'entraînement (1) et le bras de manivelle (3) ou le maneton de manivelle (4) et le levier articulé (6), l'axe (M) de la saillie définissant l'axe de la liaison à fiches pouvant être positionné, au choix, dans une des deux positions angulaires décalées l'une de l'autre de 180° autour de l'axe de la saillie (M) relativement à l'autre partie respective dans une ouverture (13, 16) prévue sur l'autre partie et adaptée à la périphérie de la saillie à l'aide de moyens de fixation (11).
  2. Entraînement des lances selon la revendication 1, caractérisé en ce que la saillie (10) présente une surface périphérique externe cylindrique coaxiale avec l'axe de la saillie.
  3. Entraînement des lances selon la revendication 1, caractérisé en ce que la saillie (10) se présente sous la forme d'un polygone (15) avec un nombre pair de sommets.
  4. Entraînement des lances selon la revendication 1, caractérisé en ce que la saillie (10) est conformée longitudinalement dans un plan perpendiculaire à l'axe (M) de la saillie.
  5. Entraînement des lances selon la revendication 1, caractérisé en ce que les moyens de fixation (11) comprennent des boulons (11a) dont les axes sont parallèles à l'axe (M) de la saillie.
  6. Entraînement des lances selon l'une quelconque des revendications précédentes, caractérisé en ce que la distance (e) entre l'axe de l'arbre et l'axe (M) de la saillie de la liaison à fiches entre l'arbre d'entraînement (1) et le bras de manivelle (3) est égale à la distance (e) entre l'axe du maneton et l'axe (M) de la saillie de la liaison à fiches entre le maneton de manivelle (4) et le levier articulé (6).
  7. Entraînement des lances selon l'une quelconque des revendications précédentes, caractérisé en ce que la saillie (10) est formée sur l'arbre d'entraînement (1) ou sur le maneton de manivelle (4).
  8. Entraînement des lances selon l'une quelconque des revendications 1 à 7, caractérisé par un engrenage, dans lequel il est prévu à titre de liaison d'entraînement entre la roue solaire (2) et la roue planétaire (1) une courroie dentée (7) avec un dispositif de tension (21).
  9. Entraînement des lances selon l'une quelconque des revendications 1 à 7, caractérisé par un engrenage, dans lequel il est prévu comme liaison d'entraînement entre la roue solaire (2) et la roue planétaire (5) une roue intermédiaire déplaçable (22).
EP87117509A 1986-11-28 1987-11-26 Dispositif d'entraînement des lances pour métiers à tisser Expired - Lifetime EP0269115B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3640717 1986-11-28
DE19863640717 DE3640717A1 (de) 1986-11-28 1986-11-28 Greiferstangenantrieb fuer webmaschinen

Publications (3)

Publication Number Publication Date
EP0269115A2 EP0269115A2 (fr) 1988-06-01
EP0269115A3 EP0269115A3 (en) 1990-03-07
EP0269115B1 true EP0269115B1 (fr) 1993-09-29

Family

ID=6315016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117509A Expired - Lifetime EP0269115B1 (fr) 1986-11-28 1987-11-26 Dispositif d'entraînement des lances pour métiers à tisser

Country Status (3)

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US (1) US4984609A (fr)
EP (1) EP0269115B1 (fr)
DE (2) DE3640717A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108620691B (zh) * 2018-03-21 2019-10-11 湖北工业大学 一种摆线轮齿廓修形方法及摆线轮、rv减速器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES314759A1 (es) * 1965-06-22 1965-10-01 Ramon Balaguer Golobart Telar multiple
BE695650A (fr) * 1966-05-10 1967-09-01
DE1710249B1 (de) * 1967-01-11 1972-05-31 Jean Gusken Maschinenfabrik Ei Greiferstangenantrieb fuer Webmaschinen mit Entnahme des Schussfadens von ortsfesten Spulen
US3999580A (en) * 1975-06-26 1976-12-28 Cox Foundry & Machine Company Weft inserting rapier guide mechanism for a shuttleless loom
NL155604B (nl) * 1975-10-06 1978-01-16 Picanol Nv Aandrijfinrichting voor naalden op een naaldgetouw.
JPS5489398A (en) * 1977-11-05 1979-07-16 Ives Eng Ltd Handle for instrument
SU1121331A1 (ru) * 1983-01-13 1984-10-30 Ивановский Ордена Трудового Красного Знамени Текстильный Институт Им.М.В.Фрунзе Привод рапиры ткацкого станка

Also Published As

Publication number Publication date
EP0269115A3 (en) 1990-03-07
DE3640717A1 (de) 1988-06-09
US4984609A (en) 1991-01-15
DE3787617D1 (de) 1993-11-04
EP0269115A2 (fr) 1988-06-01

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