EP0136244B1 - Vorrichtung zum Steuern der Messerkasten in Schaftmaschinen - Google Patents

Vorrichtung zum Steuern der Messerkasten in Schaftmaschinen Download PDF

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Publication number
EP0136244B1
EP0136244B1 EP19840420141 EP84420141A EP0136244B1 EP 0136244 B1 EP0136244 B1 EP 0136244B1 EP 19840420141 EP19840420141 EP 19840420141 EP 84420141 A EP84420141 A EP 84420141A EP 0136244 B1 EP0136244 B1 EP 0136244B1
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EP
European Patent Office
Prior art keywords
connecting rods
frames
rocker
control
weaving mechanism
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
Application number
EP19840420141
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English (en)
French (fr)
Other versions
EP0136244A1 (de
Inventor
Ulrich Mutschler
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.)
Staeubli Verdol SA
Original Assignee
Staeubli Verdol SA
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Filing date
Publication date
Application filed by Staeubli Verdol SA filed Critical Staeubli Verdol SA
Publication of EP0136244A1 publication Critical patent/EP0136244A1/de
Application granted granted Critical
Publication of EP0136244B1 publication Critical patent/EP0136244B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/32—Jacquard driving mechanisms
    • D03C3/36—Griffe operating mechanisms

Definitions

  • Mechanics of the kind in question include two claw frames intended to cooperate with the hooks in order to raise part of them and lower some others in order to open the pitch.
  • the frames slide relative to a central vertical slide.
  • the present invention relates more particularly to the control of opposite alternative movements of these frames.
  • Mechanics known hitherto of the kind described in Japanese utility model No. 1 134034, and in FR-A-2 167 756 comprise on each of their lateral faces two pendulums each associated with two connecting rods articulated by elsewhere to the two executives.
  • the first balance is provided with an alternating movement communicated by one end of a control lever, the opposite end of which is associated with a crank whose rotation speed is twice as slow as that of the shaft of the loom.
  • the reciprocating movement of the first balance is transmitted to the other balance by means of a connecting rod which gives it a tilt in the same direction as that of the first.
  • the connecting rods associated with each frame are parallel to each other and are articulated on the arms of each pendulum.
  • the inertia effects of the connecting rod and the control lever are added to the pivot axis of the first balance.
  • the two pendulums exert significant actions in the same direction on the chassis of the mechanics.
  • the control rods of the frames communicate to the central slide, and for each of them, forces in the same direction.
  • the position of the point of articulation of the control lever on the first balance has been determined so that there is a single orientation of the balance which corresponds to the point of intersection of the claws, this orientation being determined twice per cycle by two positions in large diametrically opposite of the crank. Once this orientation has been determined, it suffices to obtain the desired result by choosing the points of articulation of the connecting rods on the pendulums and the length of the latter so that at this orientation the two claw frames are at half their travel. , that is to say that the mechanics is in the so-called claw growth position.
  • the link rod for the pendulums causes a reverse tilting of the second relative to the first in order to cancel the reactions on the frame to reversals of direction of rotation, while the control rods of the frames are oriented symmetrically in order to balance the reactions on the vertical guidance of the frames.
  • a usual armor mechanism is controlled by a rotating shaft 1 with which is associated a crank pin 2 carried by a radial arm 1 a and on which is articulated one of the ends of a control rod 3 whose opposite end is mounted pivoting with respect to an axis 4 provided at the end of a cross-shaped pendulum 5, which rotates around a fixed axis 6.
  • a connecting rod 7 joins the pendulum 5 to another pendulum 8 pivoting around an axis fixed 9.
  • the two ends of the horizontal branches of the two pendulums are coupled to connecting rods 10, 11 -12, 13 respectively articulated two by two to the upper frame 14 and to the lower frame 15. It is observed that the two frames in question move vertically in opposition being guided by a central vertical slide 16.
  • crankpin 2 When the crankpin 2 rotates while being driven by the shaft 1, it causes the pendulum 5 to tilt which causes that of the pendulum 8 whose movement is identical to that of the first.
  • this balance comprises a plate 19 in the form of a "bell return" which constitutes a hub for the rotation of the balance relative to the fixed axis 6.
  • a plate 19 is articulated one of the ends of the connecting rod 7, the opposite end of which is hinged to a plate 20 forming part of the second balance 21, said plate constituting the hub of the latter with respect to the fixed axis 9.
  • the bell return 19 and the plate 20 are associated with two suitably braced sheet flanges which include lights 18a, 18b, 21a, 21b intended for fixing the lower ends of the control rods of the claw frames 14, 15.
  • the fixing of said lower ends is effected by an arrangement which is the subject of an earlier patent of the present applicant.
  • connecting rods 10 and 11 which are fixed in the slots 18b, 21 has two rockers diverge in the upward direction to come to articulate at the upper frame 14, while the connecting rods 12, 13 start from the slots 18a, 21b and converge to come and be subjected to the lower frame 15.
  • Each of the connecting rods comprises a usual device making it possible to lengthen or shorten them, each of these devices being referenced 22.
  • the balance 18 switches for example clockwise, but the position of the connecting rod 7 causes a tilting in the opposite direction of the balance 21, so that by placing judiciously the lower ends of the connecting rods in the slots 18a, 18b and 21a, 21b it is possible to obtain a vertical movement in opposition to the frames 14 and 15 under the conditions described above, that is to say by eliminating the effects of inertia of the two pendulums and eliminating the forces on the slide 16.
  • This determination of the location of the ends of the connecting rods in the slots is calculated such that at the point of intersection of the claws, correspond two diametrically opposite positions of the crankpin 2 At this position of claw growth, which corresponds to half the travel of each of the frames, they are always parallel to each other even if we work in an oblique crowd, that is to say -to say that in p high position the frames are convergent with respect to the front or rear of the mechanics.
  • This oblique crowd position is obtained of course by moving the lower ends of the connecting rods in their slots.

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

Claims (4)

1. Schaftmaschine mit zwei Messerkästen (14, 15), die abwechselnd in Bezug aufeinander mittels Stangen (10, 11-12, 13) verschoben werden, welche ihrerseits durch einen Mechanismus verschoben werden, der aus einem Stangen-Kurbelsystem (2, 5) besteht, der auf einen ersten Schwinghebel (5) einwirkt, der mit einem zweiten (8) durch eine kleine Verbindungsstange (7) verbunden ist, dadurch gekennzeichnet, dass die kleine Verbindungsstange (7) der Schwinghebel (18, 21) mit Mitteln versehen ist, durch die sie mit ihnen koppelbar ist, so dass diese kleine Verbindungsstange (7) eine umgekehrte Schwingbewegung des zweiten Schwinghebels (21) in Bezug auf den ersten (18) bewirkt, und dass die Steuerstangen (10, 11-12, 13) der Kästen (14, 15) symmetrisch ausgerichtet sind.
2. Schaftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass sie Stangen (10, 1 1 die den oberen Kasten (14) steuern, nach oben auseinanderstreben, während diejenigen (12, 13), die mit dem unteren Kasten (15) zusammenarbeiten, nach oben zu zusammenlaufen.
3. Schaftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass der Anlenkpunkt (17) des Steuerhebels (3) am ersten Schwinghebel (18, 21) entsprechend dem Kreuzen der Messer geschieht, d.h., an der Stelle, wo sich die beiden Messerkästen (14, 15) in der Mitte ihres Hubes befinden, wobei diese einzige Ausrichtung zweimal pro Zyklus durch zwei 180° gegeneinander versetzte Stellungen des Kurbelzypfens (2) bestimmt wird.
4. Schaftmaschine nach Anspruch 3, dadurch gekennzeichnet, dass die Stangen (10, 11-12, 13) an den Schwinghebeln (18, 21) in Öffnungen (18a, 18b, 21 a, 21 b) befestigt sind, damit das Öffnen des Faches schräg erfolgen kann.
EP19840420141 1983-08-26 1984-08-24 Vorrichtung zum Steuern der Messerkasten in Schaftmaschinen Expired EP0136244B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8313944 1983-08-26
FR8313944A FR2551096B1 (fr) 1983-08-26 1983-08-26 Mecanisme perfectionne pour la commande des cadres de griffes d'une mecanique d'armure

Publications (2)

Publication Number Publication Date
EP0136244A1 EP0136244A1 (de) 1985-04-03
EP0136244B1 true EP0136244B1 (de) 1987-01-28

Family

ID=9291899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840420141 Expired EP0136244B1 (de) 1983-08-26 1984-08-24 Vorrichtung zum Steuern der Messerkasten in Schaftmaschinen

Country Status (3)

Country Link
EP (1) EP0136244B1 (de)
DE (1) DE3462274D1 (de)
FR (1) FR2551096B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4027575C1 (en) * 1990-08-31 1992-02-06 Wolfgang 5600 Wuppertal De Herold Skew shed for loom - has lifting knives to carry sinkers for controlling needles, permitting high working speed
FR2669648B1 (fr) * 1990-11-27 1993-01-29 Staubli Verdol Ensemble de commande du mouvement des cadres d'un dispositif de formation de la foule telle qu'une mecanique d'armure.
FR2669650B1 (fr) * 1990-11-27 1994-04-29 Staubli Verdol Mecanisme de commande des cadres d'un dispositif de formation de la foule.
FR2690696B1 (fr) * 1992-04-30 1995-06-23 Staubli Verdol Mecanisme de commande en va-et-vient des cadres de griffes d'un dispositif de formation de la foule d'un metier a tisser.
CN103526383A (zh) * 2013-10-31 2014-01-22 江苏万工科技集团有限公司 双摇杆摆块七杆提花机构

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2167756A1 (en) * 1972-01-08 1973-08-24 Zangs Ag Maschf Double lifting mechanism - for jacquard mechanism of a double warp loom
DE2826412C2 (de) * 1978-06-16 1980-04-10 Maschinenfabrik Carl Zangs Ag, 4150 Krefeld Schaftzug für eine Webmaschine

Also Published As

Publication number Publication date
FR2551096B1 (fr) 1986-06-06
DE3462274D1 (en) 1987-03-05
FR2551096A1 (fr) 1985-03-01
EP0136244A1 (de) 1985-04-03

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