EP0316575B1 - Dispositif pour régler la hauteur du fer coupant dans un mécanisme de coupage d'un métier à tisser double pièce - Google Patents

Dispositif pour régler la hauteur du fer coupant dans un mécanisme de coupage d'un métier à tisser double pièce Download PDF

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Publication number
EP0316575B1
EP0316575B1 EP88116962A EP88116962A EP0316575B1 EP 0316575 B1 EP0316575 B1 EP 0316575B1 EP 88116962 A EP88116962 A EP 88116962A EP 88116962 A EP88116962 A EP 88116962A EP 0316575 B1 EP0316575 B1 EP 0316575B1
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EP
European Patent Office
Prior art keywords
cutting
rails
rail
cutting device
loom
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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
EP88116962A
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German (de)
English (en)
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EP0316575A1 (fr
Inventor
Roger Bostyn
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Individual
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Individual
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/16—Double-plush looms, i.e. for weaving two pile fabrics face-to-face
    • D03D39/18—Separating the two plush layers, e.g. by cutting

Definitions

  • the present invention relates to the cutting device which, when producing double fabrics, cuts through the pile threads forming the fiber cover of velvet or plush and thereby separates the two base fabrics.
  • the present invention relates to the components of such a cutting device, which determine the distance between the upper and lower cutting rulers and the vertical position of the knife with respect to the two cutting rulers. See for example FR-A-2562566 and FR-A-2493355.
  • the equality of the pile heights of the cut tissues, in addition to other auxiliary variables, is predetermined by the positioning of the upper or lower cutting ruler with respect to the fixed cutting insert.
  • the upper and lower cutting rulers must be arranged in such a way that the line that is traced from the point of engagement of the knife during the movement of the cutting carriage lies exactly in the middle between, that is to say equidistant from, the two cutting rulers. If this requirement is not met, the pile height of each of the two resulting fiber cover fabrics can be different and / or vary across the width of the finished fiber cover fabrics.
  • the lower and upper cutting rulers have been brought into the correct position by hand using set screws and adjusting nuts. That adjustment can be made individually according to a trial and error method, in which the adjustment itself is woven individually according to some Meters and the pile height of the two fiber blanket fabrics obtained are checked at numerous points to be measured and if the pile height is not the same, the setting of the two cutting rulers can be adjusted. These actions had to be repeated several times before the correct attitude was obtained. This not only required a considerable amount of time to adjust, but also resulted in several meters of second-class fiber ceiling fabric.
  • the aim of the present invention is to improve the cutting device of looms for double fabrics so that the setting of the two cutting rulers can proceed quickly and correctly.
  • the cutting device according to the invention is characterized on the one hand in that it is provided with one or more electronic position sensors which emit a signal which is related to the position of the upper and lower cutting ruler with respect to the knife.
  • the cutting device according to the invention is, on the other hand, characterized in that one or more adjusting spindles driven by an electric motor act on each cutting ruler.
  • the cutting device is provided with a processor to which a screen for data reproduction and a keyboard for data input are connected, and which receives the measurement data of the electronic position sensors and on the basis of the data entered via the keyboard of the desired position of the cutting rulers and on the ground of the measurement data controls the electric motors of the setting spindles so that the desired position of the cutting rulers is set.
  • the pile warp threads and warp threads 1 (FIG. 1) at the height of the edge forming the fabric, which is symbolically represented by the reed 2 in the stop position, are processed to form an inseparable double fabric 3, which consists of two parallel base fabrics, which are connected by pile warp threads formed by the fiber blankets.
  • the cutting device of the loom for double fabrics cuts the pile warp threads that form the fiber blankets and thus separates the two base fabrics, so that two fiber blanket fabrics 9 are obtained, which are removed via diversion rollers 10.
  • such a cutting device consists of the cutting plate 8, on which a cutting carriage 7, which carries a knife 6, moves back and forth.
  • two cutting rulers arranged parallel to one another namely the upper and lower cutting rulers 4 and 5, are provided. Between the two rulers 4 and 5 there is an opening, the so-called "bite".
  • the cutting rulers 4 and 5 have the task of feeding the undivided double fabric to the knife.
  • the cutting rulers 4 and 5 are set such that their space coincides with the desired fiber ceiling height and that they are parallel and at the same distance from the path of the moving knife application point.
  • the upper and lower cutting rulers 4 and 5 are provided on the one hand with electronic position sensors 11 and 12 and on the other hand with adjusting spindles 13 and 14 driven by electric motors 15 (FIGS. 1 and 2).
  • the position sensors 11 and 12 and the electric motors 15 of the adjusting spindles 13 and 14 are coupled among themselves via a processor (FIG. 4).
  • the position sensors 11 and 12 output signals related to the position of each of the cutting rulers 4 and 5 with respect to the knife.
  • the position sensors 11 are arranged between the outer ends of each cutting ruler 4 and 5; for example, its core is fixed to the lower cutting ruler 5 and its housing to the upper cutting ruler 4.
  • These position sensors 11 consequently output a signal which is related to the position of the two cutting rulers 4 and 5 or to the free opening ("bite").
  • the position sensor 12 is with its housing 16 against an outer end of, for example, the upper cutting ruler 4
  • the movable core of that position sensor (FIG. 3) can assume two positions: a rest position (FIG. 3a) and a measuring position (FIG. 3b).
  • the movable core 17 is held in its rest position under spring action and under its simultaneous action by an electromagnet Measurement position pressed against the top of the temporarily stationary knife 6.
  • the position sensor 12 thus outputs a signal which is related to the position of the upper cutting ruler with respect to the knife 6.
  • the operation of the position sensors 11 and 12 is preferably based on the transformer action, the sinusoidal signal being impressed on the primary winding via a modulator and the coupling to the two secondary windings being determined by the position of an adjustable core.
  • a linear output signal is obtained via an amplifier and a modulator depending on the position of a displaceable core.
  • the adjusting spindles 14 interact with a screw wire which is fixedly connected to the outer ends of the lower cutting ruler and are supported by a bearing 19 against the outer ends of the upper cutting ruler 4.
  • the adjusting spindles 14 thus regulate the size of the distance between the cutting rulers, and the adjusting spindles 13 cooperate with a screw wire firmly connected to the frame 18 of the loom and are supported via an axial bearing 19 against the outer ends of the upper cutting ruler 4.
  • the adjusting spindles 13 thus set the position of the intermediate space in relation to the knife 6.
  • Each adjusting spindle is driven by an electric motor 15, which is controlled by a processor.
  • FIG. 4 shows the position sensors 11 at the outer end of the two cutting rulers 4 and 5, the position sensor 12, which is only provided at an outer end of the cutting rulers 4 and 5, and the electric motors 15 of the respective adjusting spindle pair 13 and 14, respectively.
  • the measurement signals of the position sensors 11, 12 are converted in an intermediate unit (interface) 20 with a filter 21, a multiplexer 22 and an analog / digital converter 23 into a digital signal which is fed to a processor 24 on which a keyboard and a Screen 25 are connected.
  • the processor 24 drives the electric motors 15 via a buffer 26 and at the same time guides the core 17 of the position sensor 12 from its rest position into its measuring position.
  • the processor adjusts the electric motors 15 on the basis of the data entered via the keyboard about the desired position and size of the cutting ruler distance and the measurement data received from the position sensors 11 and 12 about the position and size of the cutting ruler distance. It may be necessary that the adjusting spindles 13, which bring this distance with respect to the knife 6 and thus the frame into the correct position, are to be provided with an additional measuring device which gives the data about the position of the cutting ruler distance with respect to the frame, since the knife 6 does not represent an absolute reference point because of the resilient arrangement of the cutting carriage 7. That data can then be fed to the processor 24 as in FIG.
  • the two cutting rulers 4 and 5 can be provided with two separate adjusting spindles which can be adjusted with respect to the frame and then mutually independently adjusted with respect to the frame, and that the position of the outer ends of the cutting rulers 4 and 5 can be checked with respect to the frame by means of own position sensors so that in a known position of the knife with respect to the frame the processor can control the electric motors of the adjusting spindles.
  • a less elaborate embodiment of the invention does not have the controlled electric motors on the adjusting spindles and, because of the uninterrupted measurement of the size and position of the cutting ruler distance obtained with the device according to the invention, requires manual adjustment of the cutting rulers 4 and 5.
  • the device according to the invention allows the location and size of the Check the ruler spacing constantly, even during weaving. When switching the loom, the cutting ruler distance can be adjusted and set quickly and easily.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Looms (AREA)

Claims (10)

1. Dispositif de coupe pour séparer un tissu tissé en double pièces en deux pièces séparées, ce dispositif comprenant un banc de coupe fixe (8) qui porte un chariot de coupe (7) faisant un mouvement de va-et-vient et qui doté d'un couteau (6), une règle du haut (4) et une règle d'en bas (5), qui sont agencées toutes deux de manière à pouvoir se déplacer en hauteur vis-à-vis du banc de coupe fixe (8) et présentent un guidage du haut, respectivement d'en bas du tissu double-pièce non coupé, le dispositif étant caractérisé en ce qu'il est prévu un ou plusieurs détecteurs de position électroniques qui produisent un signal en fonction de la position de la règle supérieure, respectivement inférieure (4, 5) vis-à-vis du couteau.
2. Dispositif de coupe selon la revendication 1, caractérisé en ce que les détecteurs de position électroniques (11, 12) sont attachés entre les extrémités externes des règles et les points de référence fixes du métier à tisser.
3. Dispositif de coupe selon la revendication 1, caractérisé en ce que les détecteurs de position électroniques (11, 12) sont attachés, d'une part, entre la règle supérieure ou inférieure et les points de référence fixes du métier et, d'autre part, mutuellement entre les deux règles.
4. Dispositif selon la revendication 3, caractérisé en ce que les points de référence fixes sont la partie supérieure, respectivement la partie inférieure du couteau (6).
5. Dispositif de coupe selon la revendication 1, dans lequel les règles (4, 5) sont agencées de manière à pouvoir effectuer un mouvement vertical grâce à des moyens de guidage, caractérisé en ce qu'une ou plusieurs tiges filetés de réglage (13, 14) entraînée(s) par un moteur électronique (15) actionnent sur chaque règle (4, 5).
6. Dispositif de coupe selon la revendication 5, caractérisé en ce que les tiges filetées de réglage (13, 14) se vissent dans un écrou qui est attaché au châssis (18) du métier et coopèrent avec un palier axial (19) sur les extrémités externes des règles (4, 5).
7. Dispositif selon la revendication 5, caractérisé en ce que les tiges filetées de réglage (13, 14) se vissent, sur les extrémités externes des règles (4, 5), dans un écrou et coopèrent avec un palier axial (19) qui est attaché au châssis (18) du métier.
8. Dispositif selon la revendication 5, caractérisé en ce qu'un premier groupe de tiges filetées de réglages (14) est porté par la règle supérieure (4) ou la règle inférieure (5) et coopère avec un écrou qui est porté par la règle inférieure (5), respectivement la règle supérieure (4), et en ce qu'un second groupe de tiges filetées de réglage (13) est porté par des pièces reliées de manière fixe au châssis (18) du métier ou sur la règle supérieure (4) ou encore sur la règle inférieure (5) et coopère avec un écrou qui est tenu sur les extrémités externes de la règle du haut (4) ou de la règle d'en bas (5) ou encore des pièces reliées de manière fixe au châssis du métier (18).
9. Dispositif de coupe selon l'une quelconque des revendications précédentes, doté d'un processeur dispositif électronique (24), auquel des moyens de périphérie (25) sont raccordés pour introduire et afficher des données et qui reçoit des signaux de mesures des détecteurs de position électroniques et commande les moteurs électriques des tiges filetées de réglage en fonction des données introduites dans les moyens de périphérie sur la position théorique des règles et des mesures effectuées, de telle sorte que la position souhaitée des règles soit atteinte.
10. Métier à tisser à double-pièce doté d'un dispositif de coupe selon l'une quelconque des revendications précédentes.
EP88116962A 1987-10-12 1988-10-12 Dispositif pour régler la hauteur du fer coupant dans un mécanisme de coupage d'un métier à tisser double pièce Expired - Lifetime EP0316575B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8701167 1987-10-12
BE8701167A BE1000995A4 (nl) 1987-10-12 1987-10-12 Inrichting voor het regelen van de beet in de snijinrichting van dubbelstukweefmachines.

Publications (2)

Publication Number Publication Date
EP0316575A1 EP0316575A1 (fr) 1989-05-24
EP0316575B1 true EP0316575B1 (fr) 1991-08-21

Family

ID=3882920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88116962A Expired - Lifetime EP0316575B1 (fr) 1987-10-12 1988-10-12 Dispositif pour régler la hauteur du fer coupant dans un mécanisme de coupage d'un métier à tisser double pièce

Country Status (6)

Country Link
US (1) US4892120A (fr)
EP (1) EP0316575B1 (fr)
BE (1) BE1000995A4 (fr)
DD (1) DD283168A5 (fr)
DE (1) DE3864383D1 (fr)
ES (1) ES2026623T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1003628A5 (nl) * 1990-05-21 1992-05-05 Wiele Michel Van De Nv Lancettenhouder.
BE1008719A5 (nl) * 1994-09-14 1996-07-02 Wiele Michel Van De Nv Snijinrichting voor een dubbelstuk-weefmachine.
DE19713089C2 (de) * 1997-03-27 2000-07-27 Dornier Gmbh Lindauer Verfahren und Vorrichtung zur Steuerung und Überwachung der Schneidfunktion einer elektromotorisch angetriebenen Fadenschere in Webmaschinen
BE1015479A3 (nl) * 2003-04-23 2005-04-05 Wiele Michel Van De Nv Symmetrische beetmeting.
BE1022811A9 (nl) * 2015-03-12 2016-10-04 Wiele Michel Van De Nv Klemming van de positie van de breedtestukken van een weefgeleidingsinrichting
BE1022813A9 (nl) * 2015-03-12 2016-10-04 Wiele Michel Van De Nv Regeling van de onderlinge positie van de breedtestukken van een weefselgeleidingsinrichting
DE102018211531B4 (de) 2018-07-11 2020-03-05 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Webmaschine sowie Verfahren zum Führen eines Gewebes in einer Webmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1127341A (en) * 1966-01-18 1968-09-18 G H Norton & Company Ltd Improvements in or relating to woven pile products and the weaving thereof
FR2493355A1 (fr) * 1980-11-04 1982-05-07 Avrin Bernard Dispositif de controle des variations de hauteur de poils de velours
DD161206A3 (de) * 1981-12-09 1985-05-29 Halbmond Teppiche Oelsnitz Vog Vorrichtung zur florhoehenueberwachung bei doppelflorgeweben
FR2527654A1 (fr) * 1982-05-26 1983-12-02 Alsacienne Constr Meca Perfectionnement aux dispositifs de coupe des poils pour machine a tisser le velours en double nappe
FR2562566B1 (fr) * 1984-04-09 1986-06-06 Menissier Pierre Appareil destine a separer en deux nappes de type velours un produit textile ou paratextile compose de deux nappes retenant tendu entre elles deux un reseau de fils textiles naturels, synthetiques ou metalliques

Also Published As

Publication number Publication date
US4892120A (en) 1990-01-09
DE3864383D1 (de) 1991-09-26
ES2026623T3 (es) 1992-05-01
DD283168A5 (de) 1990-10-03
EP0316575A1 (fr) 1989-05-24
BE1000995A4 (nl) 1989-05-30

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