EP0297586B1 - Doppelhub-Offenfach-Jacquardmaschine - Google Patents

Doppelhub-Offenfach-Jacquardmaschine Download PDF

Info

Publication number
EP0297586B1
EP0297586B1 EP88110491A EP88110491A EP0297586B1 EP 0297586 B1 EP0297586 B1 EP 0297586B1 EP 88110491 A EP88110491 A EP 88110491A EP 88110491 A EP88110491 A EP 88110491A EP 0297586 B1 EP0297586 B1 EP 0297586B1
Authority
EP
European Patent Office
Prior art keywords
machine according
jacquard machine
lifting
lifting knives
oscillating
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
EP88110491A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0297586A2 (de
EP0297586A3 (en
Inventor
Walter Keim
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.)
Grosse Webereimaschinen GmbH
Original Assignee
Grosse Webereimaschinen 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 Grosse Webereimaschinen GmbH filed Critical Grosse Webereimaschinen GmbH
Publication of EP0297586A2 publication Critical patent/EP0297586A2/de
Publication of EP0297586A3 publication Critical patent/EP0297586A3/de
Application granted granted Critical
Publication of EP0297586B1 publication Critical patent/EP0297586B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

  • the invention relates to a double-stroke open pocket jacquard machine according to the preamble of claim 1.
  • Jacquard machines of this type are widely known (see e.g. DE-B1-25 33 216).
  • Various types of training have recently been specified for jacquard machines of this type, by means of which the working speed, i.e. the number of subject changes per unit of time can be increased.
  • the specialist positions are changed by moving lifting knives between a low and a high position under pattern-controlled, i.e. optional, take of boards or not.
  • the lifting knives of a lifting knife set are conventionally arranged in a respective knife frame or knife bar, which is moved by a gear between the two specialist positions, as a rule up and down, which results in extremely high loads and thus high wear during the entire specialist stroke.
  • the arrangement of beams, knives and gears must therefore be very stiff and therefore has a high mass. This can lead to vibrations at high working speeds (high speeds of the drive motor).
  • the two knife frames or knife bars must be moved in opposite directions without being allowed to interfere with each other. This creates additional design difficulties.
  • an oscillating shaft is provided, on which the lifting knives of a set are articulated individually, whereby an individual adjustment and a simple individual exchange is possible.
  • the oscillating shaft itself is moved by a gear mechanism which is relatively easy to form and which causes the oscillating movement. It is essential that the parts causing the movement of the lifting knives are no longer arranged in a frame with a high mass, but are articulated on an oscillating shaft that can be supported in the machine frame.
  • jacquard machines of very large dimensions can be created since the oscillating shafts can be supported in a simple manner and the knives can also have a comparatively large length since they are in Direction of their longitudinal extent in the machine frame to avoid twisting or deflection can be performed.
  • the design according to the invention also enables simple maintenance and readjustment, since only a change in the gearbox, preferably only the exchange of an eccentric, is required to change the specialist stroke, and for the fine adjustment only a shift in part of a clamping device carrying the lifting knife is required.
  • the invention is explained on the basis of a double-stroke open-pocket jacquard machine with lifting knives running in the warp thread direction and with inclined pocket formation.
  • the invention is also applicable to those jacquard machines in which the lifting knives run in the weft direction and in which no inclined pocket but a straight pocket is formed, that is to say for each jacquard machine in which two sets of lifting knives are moved between two specialist positions, with reference to the training the intervention between the lifting knife and the circuit boards and whether the circuit boards are actuated in the high or low position is not important.
  • a control arrangement (not shown) is used to determine whether or not a respective circuit board 4 is to be taken from the respective lifting knife 2 or 3 into the other specialist position.
  • Such control arrangements are widely known, it can be mechanical or electromechanical.
  • the boards 4 In the low position, the boards 4 can come to rest on a schematically illustrated board base 5.
  • Each board 4 is connected to a choir cord 8 which is guided over a harness floor 6 and is expediently fixed in a resilient manner (harness pull down). These choir cords 8 are connected to the associated warp thread 7, as is usual.
  • the lifting knives 2 of the first set and the lifting knives 3 of the second set are each arranged approximately parallel to one another and offset from the lifting knives 3, 2 of the other set across the width of the jacquard machine or the machine frame 1.
  • the lifting knives 2, 3 are essentially flat steel parts which are provided with notches, recesses or the like, via which the boards 4 can be taken along by means of corresponding hooks or the like, provided the boards 4 are not made by the control arrangement (not shown) the path of movement of the lifting knives 2, 3 are moved out.
  • Each lifting knife is connected at its ends via a respective lever arrangement to a movement device which is common to all lifting knives of the same set.
  • the right end 9 of the lifting knife 2 in FIG. 1 is connected via a lever arrangement 10 to a clamping device 11 which is fixed to an oscillating shaft 12.
  • the left end 13 in FIG. 1 of the lifting knife 2 is connected via a lever arrangement 14 to a clamping device 15 which is fixed to an oscillating shaft 16.
  • the right end 17 of the lifting knife 3 of the other lifting knife set is connected via a lever arrangement 18 to a clamping device 19 which is fixed to an oscillating shaft 20.
  • the left end 21 of this lifting knife 3 is connected via a lever arrangement 22 to a clamping device 23 which is fixed to an oscillating shaft 24.
  • Each set of lifting knives is thus connected to a pair of oscillating shafts at both ends via a respective set of lever arrangements in such a way that a pivoting movement of the oscillating shafts achieves a corresponding lifting movement of the lifting knives.
  • the respective lifting knife 2, 3 is connected to the lever arrangements 10, 14 and 18, 22 assigned at the end so that each lifting knife is suspended at one end with a lever arrangement and at the other end is fixed upright with the lever arrangement assigned there, ie that the oscillating shafts assigned to a lifting knife 2, 3 or a lifting knife set, namely on the one hand 12 and 16 and on the other hand 20 and 24; are arranged crosswise.
  • the lever arrangement is formed in two parts in the exemplary embodiment, as will be explained with reference to the lever arrangement 10. This consists of a first lever arm 25 connected to the clamping device 11 and a second lever arm 26 which is pivotably attached to the right end 9 of the lifting knife 2 on the one hand and to the free end of the first lever arm 25 on the other hand. If the second lever arms of the two lever arrangements assigned to a lifting knife are dimensioned such that the lifting knives are essentially parallel to one another (e.g.) are arranged horizontally, then a straight shed formation is achieved. However, if the dimensioning is selected as in the exemplary embodiment, inclined subject formation is achieved. As mentioned, each first lever arm of the lever arrangement is fastened in the associated clamping device. If this attachment is adjustable in the direction of extension of the lever arm, then a fine adjustment of the specialist stroke can be achieved. It has been shown that adjustments of approximately 5 mm are possible.
  • the oscillating shafts 12, 20, and also the two other oscillating shafts 16, 24, not shown in FIG. 2 are mounted in the machine frame 1 and only support the clamping devices 11, 19 (or 23, 15 ) and the associated lever arrangements the respective lifting knives. With a corresponding length of the oscillating shafts 12, 20, these can be supported on the machine frame 1 via a support device.
  • a support tube 27 is connected to the machine frame 1, in particular welded, with supports 28 and 29 attached, for example welded, to the circumference of the support tube, which receive the oscillating shafts 12 and 20 via schematically illustrated bearings 30 and 31 .
  • supports 28 and 29 attached, for example welded, to the circumference of the support tube, which receive the oscillating shafts 12 and 20 via schematically illustrated bearings 30 and 31 .
  • Several such supports can be arranged distributed over the length of the oscillating shaft 12, 20 (or 16, 24). This prevents the respective oscillating wave from bending.
  • a respective support 32, 33, 34, 35 is attached to a shaft stub of each oscillating shaft 12, 16, 20, 24 protruding from the machine frame 1.
  • Each carrier is essentially U-shaped and is connected centrally to the respective oscillating shaft.
  • Each carrier carries, as is explained with reference to the carrier 32, a cam roller 36 on one leg, which is in contact with an eccentric 37 which is fastened on a rotating shaft 38.
  • the rotating shaft 38 is connected to the drive motor 39 of the loom, expediently via a gear arrangement, not shown.
  • the eccentric 37 is preferably designed to be interchangeable. Through a suitable choice of the dimensions of the eccentric 37, different shifts in the sense of a rough adjustment are possible and can be redetermined for each individual case by exchanging the eccentric 37.
  • Each oscillating shaft can now be assigned its own eccentric with a rotating shaft coupled to the drive motor 39.
  • the cam roller 40 on the carrier 34 is in contact, in such a way that when the lifting knives of the one lifting knife set have reached the high position via the engagement between the cam roller and the eccentric, the lifting knives of the other lifting knife set then have reached the low position, and vice versa.
  • the formation of the eccentric 37 and the assignment of the cam rollers 36, 40 is such that a complete stroke is carried out with one revolution of the rotating shaft 38, that is to say each lifting knife 2, 3 has reached both specialist positions once.
  • the two cam rollers 36, 40 are arranged offset by 180 ° with respect to the axis of the rotating shaft 38.
  • the respective other legs of the carriers 32, 34 are connected to one another via a tab 41 articulated on these legs, the tab engaging around the rotating shaft 38 via an elongated hole 42. In this way, an inevitable contact of the cam rollers 36, 40 on the eccentric 37 is achieved via a positive connection.
  • the other two oscillating shafts 16, 24 are in an essentially identical manner via cam rollers 43, 44 in a form-fitting manner in contact with an eccentric 45 of a rotating shaft 46, which is also coupled to the drive motor 39, for example via a belt drive or the like Belt drive can achieve the connection to the rotating shaft 38, which in turn is coupled to the drive motor 39.
  • a tab 47 is provided, which brings about the positive engagement.
  • one of the two eccentric gear arrangements can be replaced by a simple mounting in the frame in the case of inclined compartment formation, but with a suitable length of the It must be ensured that the necessary minimum stroke is achieved for all boards. For this reason, the selected arrangement is preferable, as this enables shorter knives to be reached.
  • the training shown ensures reliable synchronization of the movements, in particular the movement of the lifting knives 2 and 3 between their two respective specialist positions.
  • another gear arrangement which effects this synchronization can also be selected.
  • a comparable gear arrangement 50 can also be provided on the other side of the machine frame 1, that of the one shown in FIG. 2 on the left side Gear arrangement essentially corresponds.
  • their expandability and interchangeability are difficult because the connection to the drive motor 39 is effected on this side.
  • the lifting knives 2 and 3 are assigned a guide 48 and 49, respectively, which can be moved in the machine frame 1 indicated in this regard in the same direction as the lifting knives 2, 3.
  • These guides 48, 49 are preferably provided centrally with respect to the points of attack of the plates 4 or the lifting knives 2, 3.
  • These guides 48, 49 on the one hand prevent the knives 2, 3 from buckling or bending out of the plane of the drawing corresponding to FIG. 1, and on the other hand prevent the lifting knives 2, 3 from being displaced in their longitudinal extent and parallel to the plane of the drawing, in order to prevent them from being drawn prevent large bending or pivoting of the boards 4.
  • the design of the jacquard machine according to the invention achieves that only the lifting knives move almost exclusively are, whereby the mass to be moved is reduced to the utmost.
  • the oscillating shaft can still be supported in order to avoid deflection. In this way, the load which is exerted on the driving arrangement is largely reduced, largely using rotating parts which can be easily stored in the machine frame, as a result of which the construction is considerably simplified. Furthermore, the design is simplified and simple adjustment is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP88110491A 1987-07-02 1988-06-30 Doppelhub-Offenfach-Jacquardmaschine Expired - Lifetime EP0297586B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3721932 1987-07-02
DE19873721932 DE3721932A1 (de) 1987-07-02 1987-07-02 Doppelhub-offenfach-jacquardmaschine

Publications (3)

Publication Number Publication Date
EP0297586A2 EP0297586A2 (de) 1989-01-04
EP0297586A3 EP0297586A3 (en) 1989-11-23
EP0297586B1 true EP0297586B1 (de) 1995-12-13

Family

ID=6330789

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110491A Expired - Lifetime EP0297586B1 (de) 1987-07-02 1988-06-30 Doppelhub-Offenfach-Jacquardmaschine

Country Status (5)

Country Link
US (1) US4936352A (it)
EP (1) EP0297586B1 (it)
JP (1) JPS6477641A (it)
CS (1) CS275707B6 (it)
DE (2) DE3721932A1 (it)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1004308A3 (nl) * 1989-07-17 1992-10-27 Wiele Michel Van De Nv Aandrijfsysteem voor de messenroosters van een dubbel-hef-opengaap jacquardmachine, en dergelijke jacquardmachines van een dergelijk aandrijfsysteem voorzien.
FR2658539B1 (fr) * 1990-02-22 1992-06-05 Staubli Verdol Sarl Ets Mecanisme de commande du mouvement des cadres de griffes d'un dispositif de formation de la foule.
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.
FR2703697B1 (fr) * 1993-04-07 1995-06-23 Staubli Sa Ets Mécanique jacquard à courses différenciées.
DE9307391U1 (de) * 1993-04-26 1993-09-30 Textilma Ag, Hergiswil Fachbildevorrichtung für eine Webmaschine
FR2717189B1 (fr) * 1994-03-10 1996-07-19 Staubli Verdol Mécanisme de commande de mouvement de va-et-vient des cadres de griffes d'une mécanique d'armure.
DE59608928D1 (de) * 1995-09-21 2002-04-25 Textilma Ag Vorrichtung zur wahlweisen steuerung einer oszillierenden querbewegung eines fadens, insbesondere eines kettfadens einer webmaschine
DE19651799A1 (de) * 1996-12-13 1998-06-18 Schoenherr Webstuhlbau Gmbh Antriebsvorrichtung für die Fachbildeelemente von Webmaschinen
FR2757544B1 (fr) * 1996-12-19 1999-03-05 Staubli Lyon Dispositif de formation de la foule, procede de montage et metier a tisser de type jacquard equipe d'un tel dispositif
GB9715480D0 (en) * 1997-07-23 1997-10-01 Bonas Machine Co Drive mechanism for a griffe frame
FR2802219B1 (fr) * 1999-12-14 2002-10-18 Staubli Sa Ets Dispositif de formation de la foule pour metier a tisser de type jacquard
BE1015313A3 (nl) * 2003-01-16 2005-01-11 Michel Van De Wiele N V Nv Harnasinrichting voor een weefmachine.
BE1016559A4 (nl) * 2005-03-21 2007-01-09 Wiele Michel Van De Nv Jacquardinrichting.
CN102443918A (zh) * 2010-09-30 2012-05-09 吴江市雪绒花制衣厂 织机旋转开口装置
CN104372487B (zh) * 2013-08-14 2016-12-28 王伯奇 复动式提刀差动提花机传动机构及其传动方式
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
CN104593927B (zh) * 2015-01-19 2016-04-13 杨玲燕 一种摇杆的摆动机构
DE202015105812U1 (de) * 2015-11-02 2017-01-30 GITEC Grosse Internationale Technologie GmbH Fachbildevorrichtung
CN105350136A (zh) * 2015-12-04 2016-02-24 浙江奇汇电子提花机有限公司 低速电子提花装置
BE1024030B1 (nl) 2016-04-08 2017-11-06 Nv Michel Van De Wiele Jacquard met vernieuwd aandrijfsysteem
BE1024029B1 (nl) 2016-04-08 2017-11-06 Nv Michel Van De Wiele Gaapvormingsmodule voor een weefinrichting

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1535220B1 (de) * 1965-03-10 1970-12-23 Grosse Webereimaschinen Gmbh Fachbildeeinrichtung fuer Doppelhub-Jacquardmaschinen
CH590945A5 (it) * 1975-01-31 1977-08-31 Sulzer Ag
GB2047755B (en) * 1979-04-24 1983-03-30 Bonas Machine Co Loom heald control means
JPS57198478A (en) * 1981-06-01 1982-12-06 Canon Inc Transferring device
FR2535742A1 (fr) * 1982-11-04 1984-05-11 Verdol Sa Mecanique d'armure a selection perfectionnee des crochets
JPH0733611B2 (ja) * 1986-09-08 1995-04-12 株式会社豊田自動織機製作所 織機における開口運動の異常検出方法

Also Published As

Publication number Publication date
DE3721932C2 (it) 1990-01-04
EP0297586A2 (de) 1989-01-04
CS275707B6 (en) 1992-03-18
DE3854769D1 (de) 1996-01-25
US4936352A (en) 1990-06-26
JPS6477641A (en) 1989-03-23
DE3721932A1 (de) 1989-01-19
EP0297586A3 (en) 1989-11-23

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