EP0340162A1 - Métier à tisser - Google Patents

Métier à tisser Download PDF

Info

Publication number
EP0340162A1
EP0340162A1 EP89810258A EP89810258A EP0340162A1 EP 0340162 A1 EP0340162 A1 EP 0340162A1 EP 89810258 A EP89810258 A EP 89810258A EP 89810258 A EP89810258 A EP 89810258A EP 0340162 A1 EP0340162 A1 EP 0340162A1
Authority
EP
European Patent Office
Prior art keywords
changer
drive
sliding block
segment
weft
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.)
Granted
Application number
EP89810258A
Other languages
German (de)
English (en)
Other versions
EP0340162B1 (fr
Inventor
Frantisek Jankovsky
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
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 Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0340162A1 publication Critical patent/EP0340162A1/fr
Application granted granted Critical
Publication of EP0340162B1 publication Critical patent/EP0340162B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/38—Weft pattern mechanisms

Definitions

  • the invention relates to a weaving machine with a weft changing device, with at least one drive for this device, the output member of which can be moved back and forth between two discrete positions, and with an output, on which at least two weft feeders can be moved into the respective entry position of the weft.
  • Such changing devices for only two weft colors are called mixing changers in the weaving mill, although the program for changing weft threads can be very limited.
  • two weft threads are alternately fed into a weaving machine, the changing device moving alternately from one position to the other.
  • the so-called mixing changer devices were developed from multi-weft devices in order to obtain as uniform a fabric as possible, even in the case of single-colored fabric, in which the transition from one weft bobbin to the other is less noticeable.
  • Such a multi-shot device for four shot colors is described, for example, in German Patent No. 1,710,356 or in the US Patent of the same patent family No. 3,528,459.
  • Essential elements of this Devices are used for a weft changing device which is very common in projectile weaving machines. It is possible to change two shot colors.
  • a weft thread changer is shown in a perspective view, in which the changing process is effected by a crank eccentric.
  • stops or a locking lever are provided which engages in cutouts on the changer segment.
  • the invention which solves this problem, is characterized in that between the drive and the output a link coupling the drive and the output is arranged, which is arranged relative to the drive and the output so that during the movement of the output member of the drive from one End position in the other the link is in an indifferent position from which it can move in two directions, whereby the output can also be pivoted in two different directions.
  • the changer drive is formed by a cam disk transmission which is connected to a changer segment via an oscillating coupling, said oscillating coupling being connected to the changer drive and the Changer segment are each connected in a bearing point.
  • the bearing points and the fulcrum of the changer segment are arranged against each other in such a way that during the movement of the changer drive from one end position to the other the vibrating coupler comes into an indifferent position relative to the changer drive and to the changer segment, in which the two bearing points of the vibrating coupler and the pivot point of the changer segment lie on a straight line. From this indifferent position, the oscillating coupling and thus the changer segment can be controlled in any direction.
  • An additional drive can be articulated to the changer segment, which acts at least on the oscillating coupler or on the changer segment during the indifferent position.
  • the additional drive consists, for example, of at least one controllable magnet which is effective in two directions.
  • connection of the additional drive to the changer segment can contain a sliding block, which can be moved into different positions by the additional drive, a sliding block of the changer segment guided in the backdrop being restricted in one direction or the other in its direction of movement depending on the position of the sliding block.
  • a circular disk can be embedded in the sliding block, which can be rotated relative to the sliding block and contains the sliding block for the sliding block.
  • a weft thread changing device can be realized with the few components, which works without sudden internal stresses.
  • the additional drive can be built very easily compared to known control devices for weft threads, since it is only slightly loaded.
  • an additional drive must be available so that the vibrating coupling does not remain in the indifferent position and to block the Device leads, while at high speed the vibrating coupling can overcome the indifferent position due to its inertia.
  • the weaving machine 1 carries a weft thread changing device 3 in a frame 2 on a weft device 5.
  • Weft thread bobbins 92 are provided in a weft reel frame 91, from which the weft thread 9 is drawn off in the direction of the weft device.
  • the weft 9 is, for example, in a projectile weaving machine by a projectile accelerated by the weft device 5 93 drawn between the warp 71.
  • the warp is unwound from a warp beam 7 and controlled by heald frames 72.
  • the finished fabric 73 is wound up by a fabric tree 74.
  • the mechanical functions of the weaving machine are made possible by a drive 8, which is formed, among other things, by an electric motor 81, a flywheel 82 and a main shaft 83.
  • a control device 10 ensures the monitoring of various functions and the coordinated sequence of movements to be controlled in the weaving machine.
  • FIG. 2 shows, as the simplest example of a weft thread changing device, a mixed changer, with which two types of weft thread 9, which are brought to a changer segment 30 by eyelets 6, are alternately offered to a projectile 93, in that the thread feeder 95 or 96 converts into a projectile 93 aligned position can be pivoted.
  • the projectile 93 is shown between the warp threads 71 shortly after firing when it enters the shed, while it was immediately before the thread feeder 95 when the thread was transferred.
  • the changer segment 30 is driven by an eccentric 321 on the main shaft 83, which acts on an arm 301 of the changer segment 30 via a rod 322 and an angle lever 323 and a spring element 324.
  • a locking plate 302 with grooves 303 is attached to the rear of the changer segment, into which a locking lever 311 of a locking device 31 can engage.
  • the locking device is also moved by the main shaft 83 or another auxiliary shaft connected to the main shaft 83 by a gear via a cam disk drive 313 and a rod 312 from the locking position shown in FIG. 2 to a second position, during which the changer segment 30 moves .
  • the locking lever 311 only releases the changer segment 30 after the changer drive has overcome its dead center position. This results in a break for the changer segment, during which the thread transfer of the weft feeder 95 or 96 to a projectile 93 takes place. Part of the working stroke of the changer drive 23 is stored by the spring element 324, while the changer segment 30 is still locked by the locking device 31. In the end positions of the changer segment, it rests against a stop 306 by means of a stop lever 305, whereby a swinging of the changer segment in the respective end position is avoided. If the weft thread changing device is to work according to a sample program in which the weft threads are to be inserted in any order, a mechanism according to the aforementioned US-PS is necessary, for example. Several changer drives 32 act together and simultaneously on the changer segment 30.
  • FIG. 3 shows an embodiment of the weft thread changing device according to the invention.
  • the changer drive is connected to the changer segment 30 without a spring element 324. 2 is replaced by a cam disk gear 327, which is connected to the changer segment 30 via a push rod 328, a changer lever 325 and an oscillating coupling 326.
  • the arrangement is drawn in the indifferent position of the oscillating coupling 326 with respect to the changer segment 30.
  • the two possible end positions of the changer segment 30, which is pivoted about the axis 304, are shown.
  • the changer lever 325 mounted on the changer axis 310 is in each case in the same Position.
  • the oscillating coupling 326 passes through the indifferent position shown in FIG. 3 due to its own inertia and the inertia of the changer segment 30 with the weft thread sensors 95 and 96, which can be moved in guides of the changer segment 30.
  • the action of an external force on the system during the indifferent position of the oscillating coupling 326 can prevent the changer segment 30 and the oscillating coupling 326 from swinging from one end position to the other if the inertial forces are overcome in the indifferent position.
  • This can be effected, for example, by an additional drive 47 according to FIG. 3, which acts on the changer segment 30 via an arm 301.
  • 4 is designed, for example, as a double-acting magnet, in which a magnet armature 473 is pulled back and forth by means of magnet windings 471 or 472.
  • the magnetic windings 471, 472 can be excited via electrical lines 100, which are connected to the controller 10 of the weaving machine.
  • the changer lever 325 swings back and forth once during a weaving cycle, wherein it is in the end positions shown in FIGS. 5 and 6 during the weft insertion. If the same weft color is to be entered during several weaving cycles, for example the weft color 9a according to FIG. 5 in the upper position of the changer segment 30, the additional drive 47 must prevent the changer lever 325 from moving from the other end position according to FIG. 3 during the oscillating movement Vibrating coupling 326 swings upwards. This is achieved when the momentum of the changer segment 30 with the Weft thread transmitters 95 and 96 as well as the vibrating coupler are overcome by the additional drive 47 until the indifferent position of the vibrating coupler 326 in FIG.
  • the principle described can also be used, for example, to implement a 4-color changing device similar to that in US Pat. No. 3,528,459 if, as shown in FIG. 11, two changer drives 32a, b operating in parallel according to the present invention each have an oscillating coupling 326a, b instead of the rocker arm 329 in Fig. 3 of the present invention acts on a scale lever 35 as mentioned in the aforementioned US patent.
  • the weighing lever 35 in the US document is then connected on the drive side via a tab 33a, 33b each with an oscillating coupling 326a, b, and on the output side to the changer segment 30.
  • the additional drive for the changer segment 30 can also be designed as a locking device 4, which is shown in FIGS. 7 and the following figures.
  • An arm 301 is articulated on the changer segment 30 and carries a sliding block 308 at one end. This moves in a backdrop 43 of a sliding block 42, which has a plurality of areas 431, 432, 433, through which the range of motion of the sliding block 308 can be restricted in one direction or the other.
  • the sliding block In the position of the sliding block shown in FIG. 7, the sliding block can swing through from the left extreme position to the right extreme position, the oscillating coupling 326 and thus also the changer segment 30 alternately in one or other extreme position.
  • the shot color a and the shot color b are alternately transferred to a projectile 93.
  • FIGS. 9c-9f of the sliding block enable a further reduction in the magnetic power because, when using these sliding blocks, the magnet only has to travel a very short stroke.
  • a disc 46c is in the sliding block 42c in FIG. 9c used, which has a longer and a shorter slot perpendicular to it. The disc can rotate freely in the sliding block 42c, its movement being interrelated to the movement of the sliding block 308 and thus the entire changer segment.
  • the interaction of the disk 46c with the sliding block 308 and the arm 301 on the changer element 30 is shown in the sequence of figures 10a-10c.
  • 10a shows the pure mixer changer operation 1: 1, that is, the alternating weft insertion of one weft color a and b.
  • the sliding block 308 moves from one possible end position to the other in the longer slot in the disk 42c. If the sliding block 42c is raised upward by a small amount ⁇ h by means of the magnet 40, the sliding block 308 presses on the lower contour of the longer slot of the disk, whereby it is pivoted to the right according to the arrow in FIG. 10b. As a result, the disk 46c begins to rotate counterclockwise in the direction of the arrow according to FIG. 10b. With proper selection of the measure of the stroke .DELTA.h the disc rotates 46c to a total of 90 o to the position in Fig. 10c, the arm 301 may cover only half the maximum swivel angle. It is prevented from pivoting further, since the sliding block according to FIG.
  • the sliding block 308 can now only move in the left area of the sliding block 42c up to the center thereof. If the original position according to FIG. 10a is to be restored, the sliding block 42c is shifted shortly before the sliding block 308 hits the contour of the long slot in disc 46c by a small amount ⁇ h ', so that the point of impact of the sliding block 308 in long slot of the disc 46c is slightly above the pivot point of the disc. As a result, the disc 46c is pivoted back again by 90 ° , so that the arm 301 extends into right end position can swing through. Accordingly, the washer 46c can also in a comparison with FIG. Are brought to 180 o pivoted position 10c when the lifting of the slide block 42c is performed by the dimension ⁇ h during pivoting of the arm 301 from right to left in Fig. 10a opposite to the direction of the arrow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP89810258A 1988-04-25 1989-04-05 Métier à tisser Expired - Lifetime EP0340162B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1535/88 1988-04-25
CH153588 1988-04-25

Publications (2)

Publication Number Publication Date
EP0340162A1 true EP0340162A1 (fr) 1989-11-02
EP0340162B1 EP0340162B1 (fr) 1992-08-12

Family

ID=4212697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810258A Expired - Lifetime EP0340162B1 (fr) 1988-04-25 1989-04-05 Métier à tisser

Country Status (5)

Country Link
US (1) US4936355A (fr)
EP (1) EP0340162B1 (fr)
JP (1) JPH01306649A (fr)
DE (1) DE58902024D1 (fr)
RU (1) RU1806230C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0467824A1 (fr) * 1990-07-16 1992-01-22 GebràœDer Sulzer Aktiengesellschaft Métier à tisser avec un dispositif changeur de trame
EP0515309A1 (fr) * 1991-05-23 1992-11-25 Gebrüder Sulzer Aktiengesellschaft Dispositif changeur de fil de trame pour métiers à tisser à projectiles
EP0533617A1 (fr) * 1991-09-19 1993-03-24 Sulzer RàœTi Ag Métier à projectiles avec un dispositif changeur de trame

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0409773B1 (fr) * 1989-07-21 1994-04-20 Sulzer RàœTi Ag Dispositif changeur de fil de trame pour métier à tisser
US5209272A (en) * 1991-05-23 1993-05-11 Sulzer Brothers Limited Gripper changer for projectile looms
IT1293507B1 (it) * 1997-07-30 1999-03-01 Nuovo Pignone Spa Dispositivo selettore per la presentazione dei fili di trama nei telai tessili senza navetta
US8596303B1 (en) 2012-01-11 2013-12-03 Susan B. Ballenger Supplementary beater for a handloom

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE714188A (fr) * 1967-04-27 1968-10-25
BE716984A (fr) * 1967-06-22 1968-12-23
EP0190798A1 (fr) * 1985-02-04 1986-08-13 GebràœDer Sulzer Aktiengesellschaft Dispositif de changement de trame pour métiers à tisser

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2547838B1 (fr) * 1983-06-24 1985-11-29 Alsacienne Constr Mat Tex Dispositif melangeur de fils de trame pour machines a tisser
NL8600858A (nl) * 1986-04-03 1987-11-02 Picanol Nv Aandrijf- en stuurmechanisme voor het klemmen, presenteren en vasthouden van inslagdraden bij grijperweefmachines.
NL8600857A (nl) * 1986-04-03 1987-11-02 Picanol Nv Werkwijze voor het klemmen, vasthouden en presenteren van inslagdraden bij grijperweefmachines en inrichting hiertoe aangewend.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE714188A (fr) * 1967-04-27 1968-10-25
BE716984A (fr) * 1967-06-22 1968-12-23
EP0190798A1 (fr) * 1985-02-04 1986-08-13 GebràœDer Sulzer Aktiengesellschaft Dispositif de changement de trame pour métiers à tisser

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0467824A1 (fr) * 1990-07-16 1992-01-22 GebràœDer Sulzer Aktiengesellschaft Métier à tisser avec un dispositif changeur de trame
EP0515309A1 (fr) * 1991-05-23 1992-11-25 Gebrüder Sulzer Aktiengesellschaft Dispositif changeur de fil de trame pour métiers à tisser à projectiles
US5186218A (en) * 1991-05-23 1993-02-16 Sulzer Brothers Limited Gripper changer for projectile looms
EP0533617A1 (fr) * 1991-09-19 1993-03-24 Sulzer RàœTi Ag Métier à projectiles avec un dispositif changeur de trame
US5247968A (en) * 1991-09-19 1993-09-28 Sulzer Brothers Limited Projectile loom having a composite material multiple weft device

Also Published As

Publication number Publication date
RU1806230C (ru) 1993-03-30
JPH01306649A (ja) 1989-12-11
DE58902024D1 (de) 1992-09-17
US4936355A (en) 1990-06-26
EP0340162B1 (fr) 1992-08-12

Similar Documents

Publication Publication Date Title
EP0772703B1 (fr) Dispositif de formation de lisieres pour metier a tisser
DE2204815A1 (de) Vorrichtung zum bewegen von fadenfuehrungseinrichtungen von textilmaschinen
DE2904367C3 (de) Elektromagnetisch arbeitende Jacqard-Steuervorrichtung
DE2940202A1 (de) Webmaschine
EP0340162B1 (fr) Métier à tisser
DE4020301C2 (fr)
DE2165538C3 (de) Steuervorrichtung für eine Flachstrickmaschine
DE69103223T2 (de) Geschlossenfach-Schaftmaschine für Webmaschinen.
DE2164948A1 (de) Verfahren zum weben von doppel-florgeweben
EP0576990B1 (fr) Dispositif pour l'enclenchement et le déclenchement alternatif de l'entrâinement d'au moins deux dispositifs d'insertion de trame d'un métier à tisser
DD296117A5 (de) Steuermechanismus zum auswaehlen von schussfaeden bei greiferwebmaschinen
DE69104536T2 (de) Verbesserter Mechanismus zur Webkantenerzeugung bei einem Gewebe, das auf einer schützenfreien Webmaschine gewebt wird.
DE2628690A1 (de) Lanzenantriebsvorrichtung fuer schuetzenlose webmaschinen
DE3716124C1 (de) Schussfadenwechselvorrichtung an Webmaschinen zum wahlweisen Bewegen von Vorlagefingern
DE69126569T2 (de) Steuervorrichtung zum Programmieren von Rotationsschaftmaschinen für Webmaschinen
DE60309921T2 (de) Vorrichtung zur durchführung der programmierung von drehbaren schaftmaschinen bei webmaschinen
DE590276C (de) Webstuhl mit ortsfest gelagerten Schuetzenkaesten und beweglicher Lade
DE60109842T2 (de) Verfahren und Vorrichtung zum Steuern und Regeln der Plüschhenkelbildung in Frottierwebmaschinen
DE3533329C2 (fr)
DE3119476A1 (de) Elektromagnetischer kupplungsmechanismus einer schaftmaschine
DE370915C (de) Webstuhl mit senkrecht verlaufender Webkette, insbesondere zum Weben von Baendern und aehnlichen Stoffbahnen
AT229239B (de) Einrichtung zum automatischen Schußspulenwechsel bei Mehrschützenwebstühlen mit einseitiger Schützenwechselvorrichtung
DE1535512C (de) Steuervorrichtung für die Registrier- und Wähleinrichtung eines Schaftwebstuhls
CH544717A (de) Garnspule, Verfahren zu deren Herstellung und Vorrichtung zur Durchführung des Verfahrens
EP0467824A1 (fr) Métier à tisser avec un dispositif changeur de trame

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19890407

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE IT

17Q First examination report despatched

Effective date: 19910605

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE IT

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

REF Corresponds to:

Ref document number: 58902024

Country of ref document: DE

Date of ref document: 19920917

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940318

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050405