EP0459922A1 - Elektromagnetische Einheit zum Antrieb von Schafmaschinen und andere Webvorrichtungen - Google Patents

Elektromagnetische Einheit zum Antrieb von Schafmaschinen und andere Webvorrichtungen Download PDF

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Publication number
EP0459922A1
EP0459922A1 EP91420176A EP91420176A EP0459922A1 EP 0459922 A1 EP0459922 A1 EP 0459922A1 EP 91420176 A EP91420176 A EP 91420176A EP 91420176 A EP91420176 A EP 91420176A EP 0459922 A1 EP0459922 A1 EP 0459922A1
Authority
EP
European Patent Office
Prior art keywords
electromagnets
cassette
box
tail
cassettes
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.)
Withdrawn
Application number
EP91420176A
Other languages
English (en)
French (fr)
Inventor
Jean-Paul Froment
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.)
Staubli Faverges SCA
Original Assignee
Staubli Faverges SCA
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 Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP0459922A1 publication Critical patent/EP0459922A1/de
Withdrawn legal-status Critical Current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
    • D03C3/20—Electrically-operated jacquards
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D03C1/144—Features common to dobbies of different types linking to the heald frame
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D03C1/22—Needles; Needle boxes; Needle boards

Definitions

  • the present invention relates to the dobby and other weaving mechanics used for training the crowd on the weaving looms, and it relates more particularly to the control of these mechanics by electromagnetic means.
  • each electromagnet comprises a coil for the attraction, against elastic return means, of a pivoting pallet whose free end is suitable, in one of the two operating positions, forming a stop for a needle moved alternately along its axis, which needle cooperates with a device equipped with pushers and knives with reciprocating movement to operate the control of an actuating lever of the dobby.
  • the electromagnetic control unit according to the invention is defined in claim 1.
  • the invention consists in mounting the coils and the pivoting pallets inside a series of flat cassettes which are held side by side in an openable box, each of said cassettes comprising, in addition to internal stops capable of limiting very precisely. the movement of each pallet by defining for the latter two perfectly localized positions, at least one calibrated hole intended to be crossed by the movable needle associated with the control device with pushers and knives of the dobby or other mechanical.
  • each of the cassettes integrates its own guide means and the members for positioning its constituent elements, so that any risk of defective positioning with respect to the elements of the dobby is radically avoided.
  • Fig. 1 is a cross-section illustrating very schematically the installation of an electromagnetic control unit according to the invention in a weaving dobby, assumed to be of the rotary type.
  • Fig. 2 is a cross section, on a larger scale, of the unit envisaged in itself.
  • Fig. 3 is a vertical section, still on a larger scale, of one of the cassettes of the unit according to FIG. 2.
  • the rotary dobby, of the negative type, schematically illustrated in FIG. 1 has a known construction and comprises, for the operation of each of the heald frames 1, an oscillating suspension lever 2 which is coupled to a connecting rod 3 with which are associated on the one hand a eccentric 4 mounted idly on a main shaft 5 driven by an intermittent rotational movement, on the other hand a coupling hook 6 brought to tilt on a plate 4 a secured to the above-mentioned eccentric.
  • a spring 7 tends to engage the spout of each hook 6 in one or the other of the two opposite notches of a driver 8 wedged on the shaft 5, thereby ensuring the rotation of the eccentric 4 and the connecting rod control 3.
  • levers 9 articulated at 10 on the frame of the dobby and coupled to each other by a link 11; a spring 12 hooked to one of these levers 9 tends to apply the opposite lever against a fixed stop 13.
  • lever 9 act two parallel pushers 14 with which two knives 15 are associated which are driven in an alternating lateral movement to tend to axially pushing said pushers when they are arranged in alignment with the knives.
  • the lateral actuation of the pushers 14 is operated using two transverse needles 16 guided in a fixed rake 17 and associated with a movable leveler 18.
  • Elastic means in the form of a spring associated with each needle, tend to push it upwards so that it can receive the command from the electromagnetic unit 19 containing the weaving program, which unit is the subject of the present invention.
  • this unit 10 is in the form of a box consisting of a lower box 20 and a removable cover 21, assembled to each other in any suitable manner, for example using screws not shown.
  • this box 20-21 are stored side by side a series of cassettes 22, the number of which in fact corresponds to that of the heald frames 1 actuated by the dobby in question.
  • Each cassette 22, advantageously produced by assembling two symmetrical halves of molded plastic, has laterally two tabs 22 a which are shaped and dimensioned to be pinched between the edges facing the housing 20 and the cover 21 during the 'assembly of these, ensuring, by their elastic deformability, the application of the bottom of each cassette 22 against the bottom of said housing, without other member.
  • each cassette 22 is provided with two upper bosses 22 b on which the printed circuit 23 is clipped which allows the electrical supply of the electromagnets, according to the weaving program incorporated in an electronic memory. associated with said circuit 23, all in known manner.
  • each cassette 22 Inside each cassette 22 are provided two housings for two coils 24 (see fig. 3) each of which is arranged around a metal core 24 a .
  • Each coil 24 is associated with a pallet 25 pivotally mounted on a fixed axis 26 integral with the cassette 22.
  • the latter also includes a central stop 27 on either side of which are arranged two lateral stops 28 in order to limit the angular displacement of the tail 25 has thinned each tipping platform 25. It should be noted that the latter is permanently subjected to the action of a spring 29 bearing against a relief 30 of the cassette 22.
  • this spring 29 tends to hold the pallet 25 which is associated with the tail 25 has applied against the center stop 27, as shown in the left part of fig. 3, thereby defining a first stable position.
  • the core 24 has attracted the pallet 25 that switches angularly, tail 25 has thus coming to bear against the side stop 28 which accordingly defines a second stable position, such that 'illustrated in the right part of fig. 3.
  • each cassette 22 includes a boss 31 which projects outwards and which is engaged with clearance as small as possible within an opening in the bottom of the housing 20, which opening has been referenced 20a in fig. 2, the boss 31 is pierced with two parallel holes 31 a which are calibrated to allow the engagement, practically without lateral play, of the needles 16, each hole 31 a being positioned so as to be aligned with respect to the shank 25 a of one of the two pallets 25 when these are in the rest position in abutment against the central stop 27.
  • the precision obtained is such that the angular displacement of the pallets 25 can be maintained at a minimum value which avoids any phenomenon of inertia liable to affect the operation of the assembly at high speed. Furthermore, the mounting of the electromagnets 24-25 in independent cassettes 22 considerably facilitates the production of control units capable of comprising the desired number of pairs of electromagnets, depending on the number of heald frames 1 to order.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP91420176A 1990-05-31 1991-05-30 Elektromagnetische Einheit zum Antrieb von Schafmaschinen und andere Webvorrichtungen Withdrawn EP0459922A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9007048A FR2662710B1 (fr) 1990-05-31 1990-05-31 Unite electro-magnetique pour la commande des ratieres et autres mecaniques de tissage.
FR9007048 1990-05-31

Publications (1)

Publication Number Publication Date
EP0459922A1 true EP0459922A1 (de) 1991-12-04

Family

ID=9397340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91420176A Withdrawn EP0459922A1 (de) 1990-05-31 1991-05-30 Elektromagnetische Einheit zum Antrieb von Schafmaschinen und andere Webvorrichtungen

Country Status (4)

Country Link
US (1) US5125435A (de)
EP (1) EP0459922A1 (de)
JP (1) JPH089819B2 (de)
FR (1) FR2662710B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499305A1 (de) * 1991-02-13 1992-08-19 NUOVOPIGNONE INDUSTRIE MECCANICHE E FONDERIA S.p.A. Verbesserte Vorrichtung für das Selektieren von Wechseln der Kipphebel in einem Kammmechanismus einer Frottierwebmaschine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1265200B1 (it) * 1993-11-19 1996-10-31 Nuovo Pignone Spa Sistema perfezionato di eletromagneti-aste colpitrici per il dispositivo di una rattiera rotativa
FR2772792B1 (fr) * 1997-12-24 2000-01-28 Staubli Sa Ets Boitier de positionnement d'actionneurs electriques pour la formation de la foule et metier a tisser
FR2772794B1 (fr) * 1997-12-24 2000-01-28 Staubli Sa Ets Mecanique d'armure du type jacquard et metier a tisser equipe d'une telle mecanique
FR2794140B1 (fr) * 1999-05-31 2001-07-13 Staubli Sa Ets Mecanique d'armure de type jacquard et metier a tisser equipe d'une telle mecanique
FR2899602B1 (fr) * 2006-04-11 2008-05-23 Staubli Faverges Sca Ratiere rotative, metier a tisser comprenant une telle ratiere et procede de commande d'une telle ratiere
JP5188944B2 (ja) * 2008-12-08 2013-04-24 株式会社豊田自動織機 綜絖枠

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2809248A1 (de) * 1978-03-03 1979-09-06 Grosse Webereimaschinen Gmbh Vorrichtung zum mustergemaessen steuern von einleseelementen bei textilmaschinen
EP0091962A1 (de) * 1981-10-28 1983-10-26 SAEKI, Toyojiro Vorrichtung zum übersetzen eines webmusters in mechanische handlungen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344078A (en) * 1970-05-22 1974-01-16 Wildt Mellor Bromley Ltd Patterning mechanisms for knitting machines
FR2515703B1 (de) * 1981-11-05 1983-12-09 Staubli Sa Ets
DE3222581C2 (de) * 1982-06-16 1984-12-13 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Elektromagnetisch steuerbare Kupplung einer Textilmaschine
US4609897A (en) * 1984-12-28 1986-09-02 Thermosen, Incorporated Miniature relay
GB2188335A (en) * 1986-03-27 1987-09-30 Da Kong Enterprise Needle selection mechanism for circular knitting machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2809248A1 (de) * 1978-03-03 1979-09-06 Grosse Webereimaschinen Gmbh Vorrichtung zum mustergemaessen steuern von einleseelementen bei textilmaschinen
EP0091962A1 (de) * 1981-10-28 1983-10-26 SAEKI, Toyojiro Vorrichtung zum übersetzen eines webmusters in mechanische handlungen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499305A1 (de) * 1991-02-13 1992-08-19 NUOVOPIGNONE INDUSTRIE MECCANICHE E FONDERIA S.p.A. Verbesserte Vorrichtung für das Selektieren von Wechseln der Kipphebel in einem Kammmechanismus einer Frottierwebmaschine
US5199466A (en) * 1991-02-13 1993-04-06 Nyuovopignone Industrie Meccaniche E Fonderia S.P.A. Control device for the rocker arm of a terry loom reed operating mechanism

Also Published As

Publication number Publication date
US5125435A (en) 1992-06-30
JPH04228646A (ja) 1992-08-18
JPH089819B2 (ja) 1996-01-31
FR2662710B1 (fr) 1992-08-28
FR2662710A1 (fr) 1991-12-06

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