EP0565885B1 - Transmission pour les métiers à tisser sans navette comprenant des griffes qui se déplacent en avant et en arrière - Google Patents

Transmission pour les métiers à tisser sans navette comprenant des griffes qui se déplacent en avant et en arrière Download PDF

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Publication number
EP0565885B1
EP0565885B1 EP93104309A EP93104309A EP0565885B1 EP 0565885 B1 EP0565885 B1 EP 0565885B1 EP 93104309 A EP93104309 A EP 93104309A EP 93104309 A EP93104309 A EP 93104309A EP 0565885 B1 EP0565885 B1 EP 0565885B1
Authority
EP
European Patent Office
Prior art keywords
pinion
gear teeth
gear
shaft
engagement
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
EP93104309A
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German (de)
English (en)
Other versions
EP0565885A1 (fr
Inventor
Wilhelm Dipl.-Ing. Herrlein (Fh)
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
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 Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP0565885A1 publication Critical patent/EP0565885A1/fr
Application granted granted Critical
Publication of EP0565885B1 publication Critical patent/EP0565885B1/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
    • D03D47/275—Drive mechanisms
    • 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
    • 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
    • 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
    • Y10T74/1828—Cam, lever, and slide
    • 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
    • Y10T74/19—Gearing
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/19074—Single drive plural driven
    • Y10T74/19079—Parallel
    • Y10T74/19093—Spur and bevel
    • 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
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19674—Spur and bevel

Definitions

  • the invention relates to a gear for defenseless weaving machines with weft insertion elements which can be pushed back and forth alternately into the shed.
  • Such a transmission is e.g. known from DE-PS 37 31 990. It is used in a defenseless weaving machine to derive a rotary movement with an alternating direction of rotation from a continuous rotary movement of the main drive shaft, in order in this way to control a drive wheel for pushing the weft thread insertion members back and forth.
  • the weft thread to be inserted is inserted by grippers which are arranged at the tip of rods or at the tip of flexible bands.
  • the weft thread to be inserted is gripped at its end by these grippers by means of clamping devices outside the shed.
  • the rods or tapes are usually advanced in opposite directions from the two weaving machine sides into the shed. After the thread end has been transferred from a giving rapier to a receiving rapier, the rods are withdrawn again and the weft thread is completely inserted into the shed.
  • Various embodiments are known for clamping the weft thread on the hook and handing it over. However, these different possibilities are not important for the task to be solved here and therefore do not need to be described.
  • drive elements for the weft insertion member are required, which are moved alternately with different directions of rotation.
  • This can e.g. Be discs on which a flexible band is wound, or drive wheels with teeth that are in engagement with a perforation in flexible bands or with racks in rigid gripper bars.
  • the gears used for this use as the above-mentioned DE-PS shows, usually in a first gear part, continuously rotating cam or cam disks, of which a connecting rod is moved via oscillatingly mounted scanning rollers, which engages a tooth sector piece and turns it back and forth oscillating movement offset.
  • the oscillating movement of the tooth sector piece is taken off by a pinion and, via further gear members with the required speed ratio, onto a drive element for the weft insertion, e.g. a drive gear, which is in engagement with the toothing part of a gripper bar, or which engages in the perforation of a flexible belt, transmitted.
  • a drive element for the weft insertion e.g. a drive gear, which is in engagement with the toothing part of a gripper bar, or which engages in the perforation of a flexible belt, transmitted.
  • additional angle drives are also inserted here.
  • the swinging movement of the tooth sector piece is converted in this way into alternating rotary movement of the drive wheel.
  • the stroke of the oscillating movement can usually be changed by adjusting the connecting rod connection on the tooth sector piece. As a result, it is also possible to precisely adjust or change the stroke, that is to say the feed path of the gripper into the shed, as required.
  • Such a transmission design for generating an alternating back and forth movement for the weft insertion element in the form of a rapier of a weaving machine always has only one output shaft on the transmission output side. For this reason, only one drive gearwheel meshes with the teeth of the gripper bar.
  • the power transmission from the drive gear to the gripper rods leads to increased wear both on the drive gear and on the gripper rod. This wear must be avoided and the service life of the drive pinion and gripper rod increased.
  • the object of the invention is therefore to distribute the drive forces, which were previously transmitted from only one drive pinion to the gripper bars, to two drive pinions which are simultaneously engaged with the gripper bar.
  • the gear 1, 2 serves to convert a continuous rotational movement of the weaving machine main shaft 3 into an alternating right and left rotation movement of the drive pinions 4, 5 arranged on the output shafts 6, 7 for the weft insertion element 8.
  • cam disks 9, 10 are arranged, on the circumference of which there are contact rollers 11, 12. These scanning rollers 11, 12 are rotatably supported at the ends of an angle lever 13.
  • the angle lever 13 itself can swing back and forth around a machine-fixed bearing 14.
  • the oscillating movement of the angle lever 13 is guided to a connecting rod 16 by a lever arm 15 and transmitted through it to the tooth sector piece 17.
  • the tooth sector piece 17 is rotatably received in a machine-fixed bearing 18.
  • the connection between the connecting rod 16 and the tooth sector piece 17 is brought about by a joint 19.
  • This joint is adjustably arranged in an arcuate bearing 20 (elongated hole) in the tooth sector piece 17 in order in this way to ensure a stroke adjustment of the tooth sector piece 17 and thus also a stroke adjustment for the weft insertion element 8.
  • the tooth sector piece 17 has a circular toothing 21. With the toothing 21, a pinion 22 is engaged, which according to. Fig. 2 can be brought into engagement with the internal teeth 23 of a bevel gear 24.
  • the axis 25 of the bevel gear 24 lies in the vertical plane, vertically offset and parallel to the bearing axis 18 of the tooth sector piece 17th
  • FIG. 2 shows a top view of FIG. 1, partly in section. A part of the toothing 21 of the tooth sector piece 17 is visible below the pinion 22.
  • the pinion 22 engaged with the toothing 21 is designed as a sleeve and is rotatably arranged on the axis 25.
  • the axis 25 is rotatably mounted in the partial transmission 2.
  • the bevel gear 24 meshes with a bevel gear 26, the axis of which runs at right angles to the axis of the bevel gear 24 and forms the output axis 26a of the bevel gear transmission formed from the bevel gears 24 and 26 and known from DE-PS 37 31 990 within the sub-transmission 2.
  • a gear wheel 29 is connected in a rotationally fixed manner to the driven shaft 26a between the bearings 27, 28 receiving the driven shaft 26a.
  • two output shafts 6, 7 having teeth 30 are rotatably supported in the bearings 31, 32 in the partial transmission 2.
  • the toothing 30 is in constant engagement with the gear 29.
  • One end of the output shafts 6, 7 protrudes from the housing 33 enveloping the partial transmission 2.
  • a pinion 4 or 5 is rotatably arranged.
  • the pinions 4, 5 are in operative connection with the teeth of the weft insertion element 8 (see FIG. 1).
  • Fig. 3 shows a transmission structure in which, instead of the gear 29, an outer wheel 35 with internal teeth 34 is rotatably arranged between the bearings 27, 28 of the output shaft 26a thereon.
  • the output shafts 6, 7 carry, on their end leading into the transmission, a pinion 36 or 37, the toothing of which engages with the inner toothing 34 of the outer wheel 35.
  • the remaining structure of the partial transmission corresponds to that of FIG. 2.
  • Fig. 4 shows a transmission 2a with a different structure from the aforementioned transmissions.
  • the aforementioned partial transmissions 1 and 2 are omitted here.
  • a tooth sector piece 17 has an arcuate recess 38, the upper circular arc 38 'of which has a toothing 39 directed into the recess 38. With this toothing, the pinion 40 is engaged, which is rotatably connected to the shaft 41 of the outer wheel 35.
  • the shaft 41 of the outer wheel 35 lies in the vertical plane parallel to the bearing axis 18 of the toothed sector piece 17.
  • the outer wheel 35 has an internal toothing 34, into which, in the manner of a planetary gear, are arranged axially parallel and above the geometric longitudinal axis 42 of the shaft 41 on the output shafts 6, 7 Engage pinion 36.37.
  • the output shafts 6.7 form the output of the transmission.
  • the free end of the respective output shaft 6.7 takes a pinion 4.5 rotatably.
  • Both pinions 4, 5 are in engagement with the toothing of the weft insertion element 8, for example with a looper rod carrying the looper.
  • the weft thread insertion element 8 executes an alternating forward and backward movement according to double arrow 44.
  • FIG. 5 shows the gear 2a in a sectional view along the line II in FIG. 4.
  • the bearing axis 18 of the tooth sector piece 17 is accommodated in the bearings 49, 50 shown schematically.
  • the tooth sector piece 17 has an arcuate recess 38 with internal teeth 39 which meshes with the pinion 40.
  • the pinion 40 is coaxially connected to the outer wheel 35 and arranged in a rotationally fixed manner on the shaft 41 of the outer wheel 35.
  • the outer wheel 35 and the shaft 41 consist of one piece here.
  • the shaft 41 is also received in schematically illustrated bearings 47, 48 of the housing or in parts of the gear housing 33.

Landscapes

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

Claims (3)

  1. Transmission pour métiers à tisser sans navettes munis d'organes (8) d'insertion des fils de trame, pouvant être déplacés alternativement vers l'avant et vers l'arrière dans une foule de tissage, comprenant une transmission partielle (1) dotée de disques à cames (9, 10) tournant en continu, et de moyens de transmission (11, 12, 13, 14, 15, 16, 19), les disques à cames imprimant un mouvement alternatif oscillant, par l'intermédiaire des moyens de transmission, à une pièce (17) à secteur denté présentant une denture (21) ; et une transmission partielle (2) pourvue d'un pignon (22) en prise avec la denture (21), le pignon (22) entraînant une première roue conique (24) en prise avec une seconde roue conique (26), et la roue conique (26) étant par ailleurs verrouillée en rotation sur un axe mené (26a) qui est monté rotatif, et sur lequel une roue dentée (29) est verrouillée en rotation, caractérisée par le fait que la transmission partielle (2) renferme, en outre, deux arbres de sortie (6, 7) munis de dentures (30), agencés à distance l'un de l'autre, dont les axes sont parallèles à l'axe mené (26a), et dont les dentures sont en prise permanente avec la roue dentée (29) ; et par le fait qu'un pignon considéré (4, respectivement 5), verrouillé en rotation sur l'extrémité libre de chaque arbre de sortie (6, 7), est en liaison efficace avec une denture des organes (8) d'insertion des fils de trame.
  2. Transmission pour métiers à tisser sans navettes munis d'organes (8) d'insertion des fils de trame, pouvant être déplacés alternativement vers l'avant et vers l'arrière dans une foule de tissage, comprenant une transmission partielle (1) dotée de disques à cames (9, 10) tournant en continu, et de moyens de transmission (11, 12, 13, 14, 15, 16, 19), les disques à cames (9, 10) imprimant un mouvement alternatif oscillant, par l'intermédiaire des moyens de transmission, à une pièce (17) à secteur denté présentant une denture (21) ; et une transmission partielle (2) pourvue d'un pignon (22) en prise avec la denture (21), le pignon (22) entraînant une première roue conique (24) en prise avec une seconde roue conique (26), et la roue conique (26) étant par ailleurs verrouillée en rotation sur un axe mené (26a) qui est monté rotatif, caractérisée par le fait
    a) qu'une roue extérieure (35) à denture intérieure (34) est verrouillée en rotation sur l'axe mené (26a),
    b) que la transmission partielle (2) renferme deux arbres de sortie (6, 7) dont les axes sont montés parallèlement à l'axe mené (26a), les arbres de sortie portant un pignon considéré (36, respectivement 37) côté entraînement, et les pignons (36, 37) étant en prise avec la denture intérieure (34) de la roue extérieure (35), et
    c) qu'un pignon (4, respectivement 5), verrouillé en rotation sur l'extrémité libre de l'arbre de sortie (6, 7), est en liaison efficace avec une denture des organes (8) d'insertion des fils de trame.
  3. Transmission pour métiers à tisser sans navettes munis d'organes (8) d'insertion des fils de trame, pouvant être déplacés alternativement vers l'avant et vers l'arrière dans une foule de tissage, comprenant des disques à cames (9, 10) tournant en continu et des moyens de transmission (11, 12, 12, 14, 15, 16, 19), les disques à cames imprimant par l'intermédiaire des moyens de transmission, autour d'un axe de portée (18), un mouvement alternatif oscillant à un élément d'entraînement (17) dont la réalisation présente une similitude avec celle d'une pièce à secteur, caractérisée par le fait qu'un évidement (38), délimité par au moins un arc de cercle supérieur (38'), est ménagé dans l'élément d'entraînement (17) avec une denture (39) qui est présente dans l'arc de cercle (38'), et avec laquelle engrène un pignon (40) agencé coaxialement sur un arbre (41) monté dans le carter (33), et verrouillé en rotation sur ledit arbre (41) ; par le fait qu'une roue extérieure (35) à denture intérieure (34) est, par ailleurs, agencée coaxialement sur l'arbre (41) et est verrouillée en rotation sur ledit arbre (41) ; par le fait que deux arbres de sortie (6, 7) disposés à l'extérieur d'un axe longitudinal (42) de l'arbre (41), et dont les axes sont parallèles audit arbre (41), sont équipés d'un pignon considéré (36, respectivement 37) côté entraînement, et les pignons (36, 37) sont en prise avec la denture intérieure (34) de la roue extérieure (35) ; et par le fait qu'un pignon (4, respectivement 5), verrouillé en rotation sur l'extrémité libre de l'arbre de sortie (6, 7), est en liaison efficace avec une denture des organes (8) d'insertion des fils de trame.
EP93104309A 1992-04-15 1993-03-17 Transmission pour les métiers à tisser sans navette comprenant des griffes qui se déplacent en avant et en arrière Expired - Lifetime EP0565885B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4212536A DE4212536C1 (fr) 1992-04-15 1992-04-15
DE4212536 1992-04-15

Publications (2)

Publication Number Publication Date
EP0565885A1 EP0565885A1 (fr) 1993-10-20
EP0565885B1 true EP0565885B1 (fr) 1996-11-13

Family

ID=6456833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104309A Expired - Lifetime EP0565885B1 (fr) 1992-04-15 1993-03-17 Transmission pour les métiers à tisser sans navette comprenant des griffes qui se déplacent en avant et en arrière

Country Status (4)

Country Link
US (1) US5370010A (fr)
EP (1) EP0565885B1 (fr)
JP (1) JPH0610235A (fr)
DE (2) DE4212536C1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104005162B (zh) * 2014-06-10 2015-08-26 浙江泰坦股份有限公司 织机传动机构
JP6708405B2 (ja) * 2014-12-22 2020-06-10 イテマ・ソチエタ・ペル・アツィオーニＩＴＥＭＡ Ｓ．ｐ．Ａ． 織機における横糸の挿入システム
CN104674438A (zh) * 2015-03-03 2015-06-03 江苏友诚数控科技有限公司 一种织机的凸轮引纬机构
CN105442157B (zh) * 2016-01-11 2017-08-04 天津工业大学 用于碳纤维立体织机的引纬传动机构
EP4008818A1 (fr) 2020-12-07 2022-06-08 Picanol Procédé et dispositif de réglage de course de déplacement d'un dispositif de préhension
EP4008817A1 (fr) 2020-12-07 2022-06-08 Picanol Procédé et dispositif pour déterminer un paramètre de mouvement d'une pince
WO2022122271A1 (fr) 2020-12-07 2022-06-16 Picanol Procédé et dispositif pour déterminer un paramètre de mouvement d'une pince

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US998808A (en) * 1909-04-19 1911-07-25 Merrill O Steere Narrow-ware loom.
US1619389A (en) * 1925-02-14 1927-03-01 Frederick V Winters Vacuum-creating instrument
US2084645A (en) * 1936-05-22 1937-06-22 Edward A Kliewer Well pump
FR1228374A (fr) * 1958-03-21 1960-08-29 Bendix Aviat Corp Machine alternative à engrenage utilisable notamment comme vérin pneumatique ou hydraulique
CH411555A (fr) * 1965-03-08 1966-04-15 Bobst Fils Sa J Machine travaillant des feuilles
GB1404075A (en) * 1973-02-22 1975-08-28 Brintons Ltd Looms
US4147067A (en) * 1975-10-28 1979-04-03 Friedrich Kocks Gmbh & Company Linear drives
GB2073789B (en) * 1980-04-09 1984-08-08 Mackie & Sons Ltd J Tape drives
DE3826156A1 (de) * 1987-09-23 1989-04-20 Dornier Gmbh Lindauer Getriebe fuer schuetzenlose webmaschinen mit abwechselnd ins webfach vor- und zurueckschiebbaren schussfadeneintragorganen
DE3731990C1 (en) * 1987-09-23 1989-01-05 Dornier Gmbh Lindauer Gear for shuttleless looms with weft-thread insertion members alternately pushable into the shed forwards and backwards

Also Published As

Publication number Publication date
EP0565885A1 (fr) 1993-10-20
DE4212536C1 (fr) 1993-04-15
DE59304450D1 (de) 1996-12-19
US5370010A (en) 1994-12-06
JPH0610235A (ja) 1994-01-18

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