EP0099843A1 - Mechanism for driving the pattern cards in shedding mechanisms - Google Patents

Mechanism for driving the pattern cards in shedding mechanisms Download PDF

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Publication number
EP0099843A1
EP0099843A1 EP83420120A EP83420120A EP0099843A1 EP 0099843 A1 EP0099843 A1 EP 0099843A1 EP 83420120 A EP83420120 A EP 83420120A EP 83420120 A EP83420120 A EP 83420120A EP 0099843 A1 EP0099843 A1 EP 0099843A1
Authority
EP
European Patent Office
Prior art keywords
paper
shell
needles
stop plate
mechanism according
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Withdrawn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
EP83420120A
Other languages
German (de)
French (fr)
Inventor
Henri Magat
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
Verdol SA
Staeubli Verdol SA
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 Verdol SA, Staeubli Verdol SA filed Critical Verdol SA
Publication of EP0099843A1 publication Critical patent/EP0099843A1/en
Withdrawn legal-status Critical Current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
    • D03C3/24—Features common to jacquards of different types
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/16—Verdol or other jacquards having intermediate power-operated needles between reading needles and lifting-hooks

Definitions

  • the present invention relates to improvements made to the armor mechanics of the Verdol type and more particularly to their mechanism for driving the paper.
  • the improvements which are the subject of the present invention aim to remedy these drawbacks and to make it possible to vary the air gap of the passage of the paper so that it passes freely during its advancement and that, on the contrary, during the reading it is pinched so as to present an excellent flatness which ensures a better selection.
  • the shaft on which the drive wheels are fixed is provided with a vertical reciprocating movement which causes a simultaneous displacement of the usual paper guide shell to bring it into contact with a stop plate loaded elastically downwards so that during reading the paper is pinched between the shell and the stop plate.
  • FIG. 1 Schematically illustrated in FIG. 1 a mechanism according to the invention comprising in the usual manner a main shaft 1, freely rotating in a transverse shell 2 by means of bearings 2a.
  • the paper scrolls over the top of the shell driven by spike wheels 3 which cooperate with perforations provided for this purpose on the two edges of the paper and which are wedged on the shaft 1.
  • the latter is driven in a jerky manner, that is to say, that it rotates by a certain angle to move the paper and then stops during the time of reading of the latter by the needles which have been referenced 4. It is observed that the lower part thereof is guided by a fixed cross-member 5 provided with holes 5a, through which said needles pass.
  • the fixed crosspiece has a certain number of perforations 5c through which studs 6a fasten with an abutment plate 6 having the same width as the zone of the paper read by the needles. Note however that its two transverse edges 6b, 6c are raised to avoid damaging the paper 7.
  • the upper end of the studs 6a which protrudes above the fixed cross member 5 is provided with a retainer 8 constituted for example by a washer 8a placed below a transverse pin 8b.
  • a retainer 8 constituted for example by a washer 8a placed below a transverse pin 8b.
  • the downward stroke of the abutment plate is limited by contacting the retainers 8 against the upper face of the cross-member 5.
  • the cross-member considered comprises openings 5d above which is located a flange 5e against which one of the ends of a compression spring 9 abuts, the opposite end of which bears on the top of the stop plate so that the latter is constantly loaded down.
  • holes 6d, 6e arranged opposite those 5a, 5b of the fixed cross member so as to allow the needles 4 to cross it freely.
  • the shell 2 is associated with a mechanism 11 so that it is subjected to a vertical reciprocating movement of determined amplitude.
  • this solution is the most advantageous one could very well provide other means for vertically moving the shaft 1 which would cause the similar movement of the shell 1.
  • the air gap that is to say the distance separating the top of the shell 2 below the stop plate 6 located at its lowest position, allows the free passage of the paper 7 when the wheels 3 ' entail to move it over the shell.
  • the mechanism 11 arrives in the top dead center area so that the top of the shell presses the paper against the stop plate 6 which moves elastically upwards against the reaction of the spring 9, until the shell reaches its top dead center, the reading taking place during the time when the shell and the stop plate are in contact. It is arranged so that the paper remains clamped between the shell and the abutment plate for a time greater than that of its reading by the needles 4.
  • the weight of the shell 2 is of course reduced by making it comprise only two cheeks each supporting a bearing 2a, and a cross-member 2c supporting the paper at the outlet of the wheels 3.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Handcart (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

The driving wheels (3) for the paper (7) are keyed on a shaft (1) pivoting in bearings (2a) of the shell (2) supporting the paper. This shell is subjected to the vertical to-and-fro movements of a connecting-rod/crank device (10, 11) which lifts the shell (2) so that it lays the paper (7) against a stop plate (6) loaded downwards by springs (9) from the fixed crossmember (5) of the shedding mechanism. <IMAGE>

Description

La présente invention est relative à des perfectionnements apportés aux mécaniques d'armure du genre Verdol et plus particulièrement à leur mécanisme d'entraînement du papier.The present invention relates to improvements made to the armor mechanics of the Verdol type and more particularly to their mechanism for driving the paper.

Actuellement ce dernier coulisse dans un entrefer constitué par une coquille dans laquelle tournent des roues à picots, et la traverse qui forme le guidage de la partie inférieure des aiguillettes. Cet entrefer est maintenu constant à une valeur voisine de 1 mm pendant toute la durée du passage du papier. Bien que celui-ci soit relativement rigide, il se présente sous forme légèrement ondulée lorsque les aiguillettes viennent le palper de manière soit à buter contre lui, soit à pénétrer dans ses perforations. Dans ces conditions on assiste quelquefois à des erreurs de lecture et de toute manière l'usure du papier est relativement rapide du fait des vibrations auquel il est soumis à son entrée dans le mécanisme d'entraînement.Currently the latter slides in an air gap consisting of a shell in which spike wheels rotate, and the cross member which forms the guide of the lower part of the needles. This air gap is kept constant at a value close to 1 mm for the duration of the passage of the paper. Although the latter is relatively rigid, it is in slightly wavy form when the needles come to feel it so as either to abut against it, or to penetrate into its perforations. Under these conditions there are sometimes errors in reading and in any case the wear of the paper is relatively rapid due to the vibrations to which it is subjected when it enters the drive mechanism.

Les perfectionnements qui font l'objet de la présente invention visent à remédier à ces inconvénients et à permettre de faire varier l'entrefer du passage du papier de telle sorte qu'il passe librement lors de son avancement et qu'au contraire lors de la lecture il soit pincé de manière à présenter une excellente planéité qui assure une meilleure sélection.The improvements which are the subject of the present invention aim to remedy these drawbacks and to make it possible to vary the air gap of the passage of the paper so that it passes freely during its advancement and that, on the contrary, during the reading it is pinched so as to present an excellent flatness which ensures a better selection.

A cet effet l'arbre sur lequel sont calées les roues d'entraînement est pourvu d'un mouvement de va-et-vient vertical qui entraîne un déplacement simultané de la coquille usuelle de guidage du papier pour amener celle-ci en contact avec une plaque-butée chargée élastiquement en direction du bas de telle sorte que pendant la lecture le papier soit pincé entre la coquille et la plaque-butée.For this purpose the shaft on which the drive wheels are fixed is provided with a vertical reciprocating movement which causes a simultaneous displacement of the usual paper guide shell to bring it into contact with a stop plate loaded elastically downwards so that during reading the paper is pinched between the shell and the stop plate.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :

  • Fig. 1 est une coupe transversale d'un mécanisme suivant l'invention à la position ouverte de son entrefer.
  • Fig. 2 est une vue semblable à celle de fig. 1 mais montrant le mécanisme lorsque le papier est pincé.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of procure:
  • Fig. 1 is a cross section of a mechanism according to the invention in the open position of its air gap.
  • Fig. 2 is a view similar to that of FIG. 1 but showing the mechanism when the paper is pinched.

On a illustré schématiquement en fig. 1 un mécanisme suivant l'invention comprenant à la manière usuelle un arbre principal 1, tournant librement dans une coquille transversale 2 par l'intermédiaire de paliers 2a. Le papier défile sur le dessus de la coquille entraînée par des roues à picots 3 qui coopèrent avec des perforations ménagées à cet effet sur les deux bords du papier et qui sont calées sur l'arbre 1. L'entraînement de ce dernier s'effectue de manière saccadée, c'est-à-dire,'qu'il tourne d'un certain angle pour déplacer le papier puis s'arrête pendant le temps de lecture de ce dernier par les aiguillettes qui ont été référencées 4. On observe que la partie inférieure de celles-ci est guidée par une traverse fixe 5 pourvue de trous 5a, traversés par lesdites aiguillettes.Schematically illustrated in FIG. 1 a mechanism according to the invention comprising in the usual manner a main shaft 1, freely rotating in a transverse shell 2 by means of bearings 2a. The paper scrolls over the top of the shell driven by spike wheels 3 which cooperate with perforations provided for this purpose on the two edges of the paper and which are wedged on the shaft 1. The latter is driven in a jerky manner, that is to say, that it rotates by a certain angle to move the paper and then stops during the time of reading of the latter by the needles which have been referenced 4. It is observed that the lower part thereof is guided by a fixed cross-member 5 provided with holes 5a, through which said needles pass.

La traverse fixe comporte un certain nombre de perforations 5c que traversent des goujons 6a solidaires d'une plaque-butée 6 présentant la même largeur que la zone du papier lue par les aiguillettes. On note toutefois que ses deux bords transversaux 6b, 6c sont relevés pour éviter d'endommager le papier 7.The fixed crosspiece has a certain number of perforations 5c through which studs 6a fasten with an abutment plate 6 having the same width as the zone of the paper read by the needles. Note however that its two transverse edges 6b, 6c are raised to avoid damaging the paper 7.

L'extrémité supérieure des goujons 6a qui dépasse au-dessus de la traverse fixe 5 est pourvue d'un arrêtoir 8 constitué par exemple par une rondelle 8a placée en dessous d'une goupille transversale 8b. Ainsi la course vers le bas de la plaque-butée est-elle limitée par contact des arrêtoirs 8 contre la face supérieure de la traverse 5. De place en place la traverse considérée comprend des ouvertures 5d au-dessus desquelles est située une bride 5e contre laquelle bute l'une des extrémités d'un ressort de compression 9 dont l'extrémité opposée prend appui sur le dessus de la plaque butée de telle sorte que celle-ci est de manière constante chargée vers le bas. On observe enfin la présence dans la plaque-butée de trous 6d, 6e disposés en vis-à-vis de ceux 5a, 5b de la traverse fixe de manière à permettre aux aiguillettes 4 de la traverser librement.The upper end of the studs 6a which protrudes above the fixed cross member 5 is provided with a retainer 8 constituted for example by a washer 8a placed below a transverse pin 8b. Thus, the downward stroke of the abutment plate is limited by contacting the retainers 8 against the upper face of the cross-member 5. From place to place the cross-member considered comprises openings 5d above which is located a flange 5e against which one of the ends of a compression spring 9 abuts, the opposite end of which bears on the top of the stop plate so that the latter is constantly loaded down. Finally, we observe the presence in the abutment plate of holes 6d, 6e arranged opposite those 5a, 5b of the fixed cross member so as to allow the needles 4 to cross it freely.

La coquille 2 est associée à un mécanisme 11 de telle sorte qu'elle est soumise à un mouvement vertical de va-et- vient d'amplitude déterminée. Bien que cette solution soit la plus avantageuse on pourrait fort bien prévoir d'autres moyens de faire déplacer verticalement l'arbre 1 qui entraînerait le mouvement similaire de la coquille 1. Au point mort bas du_mécanisme 11, c'est-à-dire à la position illustrée en fig. 1 l'entrefer, c'est-à-dire la distance séparant le dessus de la coquille 2 au dessous de la plaque-butée 6 située à sa position la plus basse, permet le passage libre du papier 7 lorsque les roues 3 l'entraînent pour le déplacer sur la coquille. Lorsque le déplacement est suffisant et que la plage de lecture se trouve située en dessous des aiguillettes 4, le mécanisme 11 arrive dans la zone de point mort haut de telle sorte que le dessus de la coquille plaque le papier contre la plaque-butée 6 qui se déplace élastiquement vers le haut à l'encontre de la réaction du ressort 9, jusqu'à ce que la coquille atteigne son point mort haut, la lecture s'effectuant pendant le temps ou la coquille et la plaque butée sont en contact. On s'arrange pour que le papier reste serré entre la coquille et la plaque-butée pendant un temps supérieur à celui de sa lecture par les aiguillettes 4.The shell 2 is associated with a mechanism 11 so that it is subjected to a vertical reciprocating movement of determined amplitude. Although this solution is the most advantageous one could very well provide other means for vertically moving the shaft 1 which would cause the similar movement of the shell 1. At bottom dead center of the mechanism 11, that is to say at the position illustrated in fig. 1 the air gap, that is to say the distance separating the top of the shell 2 below the stop plate 6 located at its lowest position, allows the free passage of the paper 7 when the wheels 3 ' entail to move it over the shell. When the displacement is sufficient and the reading range is located below the needles 4, the mechanism 11 arrives in the top dead center area so that the top of the shell presses the paper against the stop plate 6 which moves elastically upwards against the reaction of the spring 9, until the shell reaches its top dead center, the reading taking place during the time when the shell and the stop plate are in contact. It is arranged so that the paper remains clamped between the shell and the abutment plate for a time greater than that of its reading by the needles 4.

On aperçoit une échancrure 2b de la coquille 2 qui permet aux aiguillettes de traverser la plaque-butée et les perforations du papier et de dépasser en dessous de celui-ci.We see a notch 2b of the shell 2 which allows the needles to pass through the abutment plate and the perforations of the paper and protrude below it.

En vue de diminuer les inerties on réduit bien entendu le poids de la coquille 2 en ne lui faisant comporter que deux joues supportant chacune un palier 2a, et une traverse 2c soutenant le papier à la sortie des roues 3.In order to reduce the inertia, the weight of the shell 2 is of course reduced by making it comprise only two cheeks each supporting a bearing 2a, and a cross-member 2c supporting the paper at the outlet of the wheels 3.

Claims (6)

1. Mécanisme d'entraînement de papier d'une mécanique d'armure du genre Verdol, caractérisé en ce qu'il comprend des moyens (2, 10-11, 6) de pincer ce papier (7) au moment de sa lecture par les aiguillettes (4).1. A paper drive mechanism for a Verdol-type weave mechanism, characterized in that it comprises means (2, 10-11, 6) for pinching this paper (7) when it is read by the needles (4). 2. Mécanisme suivant la revendication 1, caractérisé en ce que la coquille usuelle (2) de guidage du papier (7) est soumise à un mouvement de va-et-vient vertical pour amener celui-ci en contact avec une plaque-butée (6) chargée élastiquement en direction du bas.2. Mechanism according to claim 1, characterized in that the usual shell (2) for guiding the paper (7) is subjected to a vertical reciprocating movement to bring the latter into contact with a stop plate ( 6) loaded elastically towards the bottom. 3. Mécanisme suivant la revendication 2, caractérisé en ce que la plaque-butée (6) comporte des goujons verticaux (6a) qui coulissent librement dans une traverse fixe (5) dans laquelle les aiguillettes (4) sont guidées, ces goujons (6) comportant des arrêtoirs (8) propres à limiter la course vers le bas de ladite plaque-butée (6).3. Mechanism according to claim 2, characterized in that the abutment plate (6) comprises vertical studs (6a) which slide freely in a fixed crosspiece (5) in which the needles (4) are guided, these studs (6 ) comprising retainers (8) capable of limiting the downward stroke of said stop plate (6). 4. Mécanisme suivant la revendication 3, caractérisé en ce que des ressorts de compression (9) chargent la plaque butée (6) en direction du bas leurs extrémités étant respectivement en appui contre la plaque-butée (6) et contre des brides (5e) de la traverse fixe (5).4. Mechanism according to claim 3, characterized in that compression springs (9) load the stop plate (6) towards the bottom, their ends being respectively in abutment against the stop plate (6) and against flanges (5th ) of the fixed crossmember (5). 5. Mécanisme suivant la revendication 2, caractérisé en ce qu'on ménage dans la plaque-butée (6) des trous (5a, 5b) situés en vis-à-vis des aiguillettes (4).5. Mechanism according to claim 2, characterized in that household in the stop plate (6) holes (5a, 5b) located opposite the needles (4). 6. Mécanisme suivant l'une quelconque des revendications précédentes, caractérisé en ce que la coquille (2) est liée à un dispositif à bielle et manivelle (10, 11) qui est agencé afin que le papier (7) reste serré entre la coquille (2) et la plaque-butée (6) pendant un temps supérieur à celui de sa lecture par les aiguillettes (4).6. Mechanism according to any one of the preceding claims, characterized in that the shell (2) is linked to a connecting rod and crank device (10, 11) which is arranged so that the paper (7) remains clamped between the shell (2) and the abutment plate (6) for a time greater than that of its reading by the needles (4).
EP83420120A 1982-07-19 1983-07-18 Mechanism for driving the pattern cards in shedding mechanisms Withdrawn EP0099843A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8212848 1982-07-19
FR8212848A FR2530270A1 (en) 1982-07-19 1982-07-19 IMPROVED MECHANISM FOR PAPER TRAINING OF ARMOR MECHANICS

Publications (1)

Publication Number Publication Date
EP0099843A1 true EP0099843A1 (en) 1984-02-01

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ID=9276228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83420120A Withdrawn EP0099843A1 (en) 1982-07-19 1983-07-18 Mechanism for driving the pattern cards in shedding mechanisms

Country Status (4)

Country Link
EP (1) EP0099843A1 (en)
JP (1) JPS5926542A (en)
ES (1) ES524205A0 (en)
FR (1) FR2530270A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1750670A (en) * 1929-01-30 1930-03-18 Hunter George Jacquard mechanism
DE657967C (en) * 1936-02-01 1938-03-18 Carl Zangs Act Ges Maschf Double stroke shaft machine
FR2339690A1 (en) * 1976-01-30 1977-08-26 Staeubli Ag LANDING AND CONTROL DEVICE, ESPECIALLY FOR A CROWD TRAINING MACHINE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1750670A (en) * 1929-01-30 1930-03-18 Hunter George Jacquard mechanism
DE657967C (en) * 1936-02-01 1938-03-18 Carl Zangs Act Ges Maschf Double stroke shaft machine
FR2339690A1 (en) * 1976-01-30 1977-08-26 Staeubli Ag LANDING AND CONTROL DEVICE, ESPECIALLY FOR A CROWD TRAINING MACHINE

Also Published As

Publication number Publication date
FR2530270A1 (en) 1984-01-20
ES8404430A1 (en) 1984-04-16
ES524205A0 (en) 1984-04-16
JPS5926542A (en) 1984-02-10
FR2530270B1 (en) 1985-01-18

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Inventor name: MAGAT, HENRI