EP0321974B1 - Commande du battant pour un métier à tisser - Google Patents

Commande du battant pour un métier à tisser Download PDF

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Publication number
EP0321974B1
EP0321974B1 EP88121482A EP88121482A EP0321974B1 EP 0321974 B1 EP0321974 B1 EP 0321974B1 EP 88121482 A EP88121482 A EP 88121482A EP 88121482 A EP88121482 A EP 88121482A EP 0321974 B1 EP0321974 B1 EP 0321974B1
Authority
EP
European Patent Office
Prior art keywords
sley
drive
support
slay
toggle lever
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
EP88121482A
Other languages
German (de)
English (en)
Other versions
EP0321974A1 (fr
Inventor
Hans Grossmann
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.)
Novatech GmbH Siebe und Technologie fuer Papier
Original Assignee
Herman Wangner GmbH and Co KG
Novatech GmbH Siebe und Technologie fuer Papier
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 Herman Wangner GmbH and Co KG, Novatech GmbH Siebe und Technologie fuer Papier filed Critical Herman Wangner GmbH and Co KG
Priority to AT88121482T priority Critical patent/ATE76666T1/de
Publication of EP0321974A1 publication Critical patent/EP0321974A1/fr
Application granted granted Critical
Publication of EP0321974B1 publication Critical patent/EP0321974B1/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
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/60—Construction or operation of slay

Definitions

  • the invention relates to a loom drive for a loom with a toggle lever moved by a complementary curve drive, which is articulated on the one hand on the machine frame and on the other hand on the loom support.
  • a parking device for a weaving machine in which the sley is driven by a crank rod that can be bent.
  • the crank rod is bent by an angle lever under spring resistance.
  • the break point is arranged slightly below the longitudinal line of the crank rod, so that the crank rod is stable when pressure is exerted.
  • it cannot be subjected to tension, since the crank rod would then stretch somewhat, so that the break point and the two end points of the crank rod lie on one line, as a result of which the crank lever would be in an unstable position.
  • the return movement of the sley takes place in the known storage device by the weight of the sley. Because to turn off the kink the crank rod runs against the angle lever, it can only be switched off when the sley is moving.
  • the sley In textile looms, the sley is usually driven directly by a crank or other cam mechanism. In the heavier weaving machines for technical fabrics, for example paper machine clothing, a higher impact force of the reed is required and the sley is therefore mostly driven by a toggle lever which is driven by an eccentric or complementary curve drive. The toggle lever is guided.
  • the invention has for its object to improve a shutter drive of the type mentioned so that the weaving speed is increased.
  • the pivot point of the sley support can be placed close to the sley, which means that when the stop point moves e.g. 80 mm the massive sley only has to move by 63 mm.
  • a further reduction in the mass to be moved can be achieved in that the complementary curve drive and the toggle lever are arranged below the heald support and the toggle lever engages the heald support below its pivot point, since the height of the loom support can then be reduced to less than half. At the same time, the shutter drive takes up less space.
  • the arm of the toggle lever articulated on the loom support is preferably designed to be able to be bent about a break point and the inflection point is guided on a curve, the curve being swiveled away for quick shutdown and, in addition, with quick shutdown a shock absorber being pivoted up to the point at which the toggle lever is articulated on the loom support.
  • the quick-release device takes into account that the part of the toggle lever articulated on the loom support works both on pressure and on tension. Since the curve can be swung away regardless of a movement of the sley, the quick shutdown can also be carried out when the sley is stationary.
  • the complementary curve drive is driven by the main shaft of the weaving machine. While in a conventional weaving machine for the production of paper machine screens from chemical wires, the loom support has a length of typically 1.3 m, the pivot point being at the lower end and the reed making a movement of 270 mm, a loom support is sufficient in a comparable loom drive according to the invention a length of about 0.5 m.
  • the upper fret of the reed moves on an arc with a radius of 255 mm.
  • the toggle lever is also hinged at a distance of 255 mm below the pivot point.
  • the upper fret of the reed like the articulation point between the shop support and the toggle, moves on an arc of 91 mm in length.
  • the center of gravity of the sley which is closer to the fulcrum, moves on an arc of 63 mm.
  • the shorter length of the loom support not only reduces the mass to be moved, but the reed also describes a shorter path. Both contribute to increasing the working speed of the weaving machine.
  • FIG 1 only the warp beam 12, the shaft frame 13, the goods tree 14 and the sley 18 of the loom support 1 and its drive are shown of a weaving machine.
  • the shutter drive has a toggle lever 2 and a complementary curve drive 3.
  • the sley 18 carries the reed 4 at its upper end.
  • the sley support 1 can be pivoted about a pivot point 5, which is located approximately in the middle of the sley support 1.
  • the toggle lever 2 has a first arm 6, which is articulated at the lower end of the weaving support 1 (articulation point 16), and a second arm 7, which is driven by the complementary curve drive 3.
  • the first arm 6 is only about half the length of the second arm 7, and the toggle lever 2 is designed such that when the reed 4 is attached to the fabric (attachment point 15) it is almost completely folded, so that the two arms 6, 7 extend almost parallel and the toggle lever 2 is able to exert the greatest force.
  • the toggle lever 2 opens so far that the two arms 6, 7 form an angle of approximately 30 °.
  • the second arm 7 of the toggle lever 2 extends approximately horizontally and is arranged in such a way that its hinge point 17, with which it is attached to the machine frame, is offset on one side below the weaving support 1, while the connection point 19 of the two arms 6, 7 offset to the other side below the shop support 1 lies.
  • the drive 3 is expediently designed as a double roller guide with two complementary curves.
  • the second arm 7 has a leg 20 projecting approximately at an angle of 90 ° from the articulation point 17.
  • a roller 21 or 22 is arranged, which roll on different curves 23, 24, which are complementary to each other, that is, the two curves 23, 24 have such a shape that both roles 21, 22 rest against the associated curve 23 or 24 and the second arm 7 is thereby positively guided in its movement.
  • the shape of the curves 23, 24 and their interaction with the two rollers 21, 22 need not be described in more detail, since such double roller guides with complementary curves are generally known.
  • the reed 4 strikes with its upper fret.
  • the permissible stop force of the reed 4 is not as high as in the case of a stop with the lower fret.
  • the striking force is sufficient even with a stop with the upper collar of the reed 4.
  • Figure 2 shows a first embodiment of the quick-release device.
  • the first arm 6 is designed to be foldable, so that the first arm 6 itself acts as a toggle lever.
  • the first arm 6 In normal operation of the weaving machine, the first arm 6 is always in its almost extended position. It is only slightly bent upwards by a degree or two.
  • the Bending point 8 of the first arm 6 In order to avoid buckling of the first arm 6 in normal operation, the Bending point 8 of the first arm 6 positively guided on a curve 9.
  • two cam rollers 26, 27 are rotatably mounted next to one another at the break point 8, which roll during the normal weaving process in a cam 9, which is formed by a lower cam track 28 and an upper cam track 29.
  • the lower cam track 28 is fixed, while the upper cam track 29 can be swung away upwards.
  • the upper cam track 29 is pivoted upwards.
  • a locking lever 30, which locks the upper cam track 29 during the weaving process is released by a cam disk 31.
  • the first arm 6 can thereby buckle upward, so that it no longer exerts any force on the loom support 1.
  • a shock absorber 10 is pivoted towards the articulation point 16.
  • Figure 3 shows another embodiment of the quick-release device. It differs from the embodiment of Figure 2 in that the two cam tracks 28, 29 are firmly connected to each other and therefore the curve 9 is pivoted away at a quick stop, for which purpose the locking lever 30 is pivoted away by turning the cam 31 so that it Curve 9 releases.
  • the pivoting away of the curve 9 and thus the buckling of the first arm 6 is supported by a compression spring 32.

Landscapes

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

Claims (5)

  1. Entraînement de battant pour un métier à tisser, comportant un levier à genouillère (2) déplacé par un jeu de cames complémentaires (3) et lié par articulation d'une part au bâti de la machine et d'autre part au support de battant (1), caractérisé par le fait que, lors de la butée du battant (4) contre le tissu, le levier à genouillère (2) est replié.
  2. Entraînement de battant selon revendication 1, caractérisé par le fait que le jeu de cames complémentaires (3) et le levier à genouillère (2) sont agencés plus bas que le support de battant (1) et par le fait que le levier à genouillère (2) attaque le support de battant (1) en dessous du point de pivotement (5) de celui-ci.
  3. Entraînement de battant selon revendication 1 ou 2, caractérisé par le fait que le bras (6) du levier à genouillère (2) lié par articulation au support de battant (1) est conçu-réalisé de manière à pouvoir être replié autour d'un point de pliage (8), lequel point de pliage (8) est guidé sur un moyen du genre came (9) qui est escamotable par pivotement aux fins de remisage rapide.
  4. Entraînement de battant selon revendication 3, caractérisé par le fait qu'en cas de remisage rapide un amortisseur (10) est basculé en direction du point (11) où le levier à genouillère (2) est articulé sur le support de battant (1).
  5. Entraînement de battant selon l'une des revendications 1 à 4, caractérisé par le fait que le jeu de cames complémentaires (3) est remplacé par un système à excentrique(s).
EP88121482A 1987-12-22 1988-12-22 Commande du battant pour un métier à tisser Expired - Lifetime EP0321974B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88121482T ATE76666T1 (de) 1987-12-22 1988-12-22 Webladenantrieb fuer eine webmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873743661 DE3743661A1 (de) 1987-12-22 1987-12-22 Webladenantrieb fuer eine webmaschine
DE3743661 1987-12-22

Publications (2)

Publication Number Publication Date
EP0321974A1 EP0321974A1 (fr) 1989-06-28
EP0321974B1 true EP0321974B1 (fr) 1992-05-27

Family

ID=6343328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121482A Expired - Lifetime EP0321974B1 (fr) 1987-12-22 1988-12-22 Commande du battant pour un métier à tisser

Country Status (6)

Country Link
US (1) US5000230A (fr)
EP (1) EP0321974B1 (fr)
JP (1) JPH01201552A (fr)
AT (1) ATE76666T1 (fr)
CA (1) CA1322316C (fr)
DE (2) DE3743661A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4122249C1 (fr) * 1991-07-05 1992-09-24 Juergens Maschinenbau Gmbh & Co Kg, 4407 Emsdetten, De
DE202005018856U1 (de) * 2005-12-01 2007-04-12 Wangner Gmbh & Co Kg Halterung für das Webblatt einer Nahtwebmaschine, um den Nahtschussfaden wahlweise mittels Schrägstellung der Riete oder verfahrbarer Rolle einzuwälzen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE302114C (fr) *
US2159865A (en) * 1937-10-05 1939-05-23 Shimwell Oliver Beat-up mechanism of looms for weaving
US2624372A (en) * 1949-04-18 1953-01-06 Draper Corp Lay motion for looms
DE2101720A1 (de) * 1971-01-15 1972-09-21 Emil Jäger KG, 4400 Münster Antrieb für die Ladenbewegung von Webstühlen
CS150044B1 (fr) * 1971-07-12 1973-09-04
DE2208881A1 (de) * 1972-02-25 1973-09-06 Jaeger Emil Kg Drahtwebmaschine
DE2246431C3 (de) * 1972-09-21 1978-09-28 Maschinenfabrik Rueti Ag, Rueti, Zuerich (Schweiz) Webmaschine
CH633837A5 (de) * 1978-06-30 1982-12-31 Rueti Ag Maschf Verfahren zur herstellung von florgewebe und webmaschine zur durchfuehrung des verfahrens.
FR2486550A1 (fr) * 1980-07-10 1982-01-15 Alsacienne Constr Meca Dispositif permettant de modifier la position du peigne sur le battant d'une machine a tisser
FR2520015A1 (fr) * 1982-01-21 1983-07-22 Gagey Etienne Dispositif pour la commande du battant d'un metier a tisser

Also Published As

Publication number Publication date
US5000230A (en) 1991-03-19
CA1322316C (fr) 1993-09-21
ATE76666T1 (de) 1992-06-15
DE3871510D1 (de) 1992-07-02
EP0321974A1 (fr) 1989-06-28
JPH01201552A (ja) 1989-08-14
DE3743661A1 (de) 1989-07-06

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