EP0316575B1 - Device to readjust the height of the cutting wire of a cutting mechanism in double plush looms - Google Patents

Device to readjust the height of the cutting wire of a cutting mechanism in double plush looms 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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cutting
rails
rail
cutting device
loom
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German (de)
French (fr)
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EP0316575A1 (en
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Roger Bostyn
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    • 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)

Description

Die vorliegende Erfindung betrifft die Schneideinrichtung, die beim Herstellen von Doppelgeweben die die Faserdecke von Samt oder Plüsch bildenden Polfäden durchschneidet und dabei die beiden Grundgewebe trennt. Insbesondere betrifft die vorliegende Erfindung die Bestandteile einer solchen Schneideinrichtung, die den Abstand zwischen dem oberen und unteren Schneidlineal und die vertikale Lage des Messers bezüglich der beiden Schneidlineale bestimmen. Siehe zum Beispiel FR-A-2562566 und FR-A-2493355.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. In particular, 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.

Beim Herstellen von Doppelgeweben wird die Höhe der Fasserdecke (= Polhöhe) des hergestellten Gewebes von mehreren Hilfsgrößen festgelegt, von denen die folgenden am wichtigsten sind: das Verhältnis der Zuführgettfäden wirkende Spannung und die Einstellung des Schneidlinealabstandes der Schneideinrichtung, das heißt, die Größe der Öffnung zwischen dem unteren und oberen Schneidlineal, durch die hindurch das unaufgetrennte Doppelgewebe zum Messer geführt wird. Falls die Einstellung jener Größe mit anderen Hilfsgrößen nicht übereinstimmt, die mit die Höhe der Faserdecke, die sog. Polhöhe, bestimmen, ist das hergestellte Gewebe von minderer Qualität.When producing double fabrics, the height of the drum cover (= pile height) of the fabric produced is determined by several auxiliary variables, the most important of which are the following: the ratio of the feed thread threads acting and the setting of the cutting ruler distance of the cutting device, i.e. the size of the opening between the lower and upper cutting ruler, through which the unseparated double fabric is guided to the knife. If the setting of that size does not match other auxiliary sizes that determine the height of the fiber cover, the so-called pile height, the fabric produced is of poor quality.

Andererseits ist die Gleichheit der Polhöhen der aufgetrennten Gewebe neben anderen Hilfsgrößen durch die Positionierung des oberen bzw. unteren Schneidlineals in bezug auf die feste Schneidplatte vorgegeben. Das obere und untere Schneidlineal muß derart angeordnet sein, daß die Linie, die bei der Bewegung des Schneidwagens vom Eingriffspunkt des Messers verfolgt wird, gerade in der Mitte zwischen, also gleichweit zu den beiden Schneidlinealen liegt. Wenn diese Forderung nicht erfüllt ist, kann die Polhöhe jedes der beiden sich ergebenden Faserdeckengewebe unterschiedlich sein und/oder über die Breite der fertigen Faserdekkengewebe variieren.On the other hand, 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.

Bis heute wurde das untere und obere Schneidlineal von Hand mit Stellschrauben und Einstellmuttern in die richtige Lage gebracht. Jene Einstellung kann einzeln nach einer Probier- und Fehlermethode vorgenommen werden, bei der die Einstellung selbst einzeln nach einigen gewebten Metern und die Polhöhe der beiden erhaltenen Faserdeckengewebe an zahlreichen zu vermessenden Stellen kontrolliert und bei einer Ungleichheit jener Polhöhe die Einstellung der beiden Schneidlineale angepaßt werden kann. Diese Handlungen mußten einige Male wiederholt werden, ehe die richtige Einstellung erhalten wurde. Hierfür wurde nicht nur eine erhebliche Zeit zum Einstellen benötigt, sondern ergab zugleich mehrere Meter Faserdeckengewebe von zweiter Qualität.To date, 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.

Die vorliegende Erfindung hat zum Ziel, die Schneideinrichtung von Webstühlen für Doppelgewebe zu verbessern, damit die Einstellung der beiden Schneidlineale schnell und richtig vor sich gehen kann.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.

Die Schneideinrichtung gemäß der Erfindung ist einerseits dadurch gekennzeichnet, daß sie mit einem oder mehreren elektronischen Positionsfühlern versehen ist, die ein Signal ausgeben, das mit der Position des oberen und unteren Schneidlineals im Hinblick auf das Messer in Beziehung steht.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.

Die Schneideinrichtung gemäß der Erfindung ist andererseits dadurch gekennzeichnet, daß an jedem Schneidlineal eine oder mehrere durch einen Elektromotor angetriebene Einstellspindeln angreifen.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.

Weiterhin ist die Schneideinrichtung gemäß der Erfindung mit einem Prozessor versehen, an dem zur Datenwiedergabe ein Bildschirm und zur Dateneingabe eine Tastatur angeschlossen sind, und der die Meßdaten der elektronischen Positionsfühler empfängt und auf Grund der über die Tastatur eingebrachten Daten der Sollposition der Schneidlineale und auf Grund der Meßdaten die Elektromotoren der Einstellspindeln steuert, damit die erwünschte Position der Schneidlineale eingestellt wird.Furthermore, the cutting device according to the invention 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.

Weitere Besonderheiten der Schneideinrichtung gemäß der Erfindung ergeben sich aus der folgenden Beschreibung einer bevorzugten Ausführungsform der Schneideinrichtung, ohne eine Einschränkung darzustellen. Diese Beschreibung nimmt auf die beigefügten Figuren bezug:

  • Figur 1 ist eine Seitenansicht der beiden Schneidlineale mit einer schematischen Wiedergabe des Rietes und des Doppelgewebes.
  • Figur 2 ist eine Rückansicht auf ein Außenende der beiden Schneidlineale.
  • Die Figuren 3a und 3b sind schematische Schnitte durch die Positionsfühler, die bezüglich des Messermaßes in der Ruhelage (Figur 3a) und in der Meßlage (Figur 3b) gezeigt sind.
  • Figur 4 ist eine schematische Wiedergabe des Prozessors und der Schneideinrichtung gemäß der Erfindung.
Further special features of the cutting device according to the invention result from the following description of a preferred embodiment of the cutting device, without representing any restriction. This description refers to the attached figures:
  • Figure 1 is a side view of the two cutting rulers with a schematic representation of the reed and the double fabric.
  • Figure 2 is a rear view of an outer end of the two cutting rulers.
  • Figures 3a and 3b are schematic sections through the position sensors, which are shown with respect to the knife dimension in the rest position (Figure 3a) and in the measuring position (Figure 3b).
  • Figure 4 is a schematic representation of the processor and cutter according to the invention.

Beim Herstellen von Doppelgeweben werden die Polkettfäden und Kettfäden 1 (Figur 1) in der Höhe des das Gewebe bildenden Randes, der symbolisch durch das Riet 2 in der Anschlagstellung wiedergegeben ist, zu einem unzertrennten Doppelgewebe 3 verarbeitet, das aus zwei parallelen Grundgeweben besteht, die unter sich durch die Faserdecken bildende Polkettfäden verbunden sind. Die Schneideinrichtung des Webstuhles für Doppelgewebe zerschneidet die die Faserdecken bildenden Polkettfäden und trennt somit die beiden Grundgewebe, damit zwei Faserdeckengewebe 9 erhalten werden, die über Umleitrollen 10 abgeführt werden. Eine derartige Schneideinrichtung besteht in jedem Fall aus der Schneidplatte 8, auf der sich ein Schneidwagen 7, der ein Messer 6 trägt, hin- und herbewegt. Gegenüber der Schneidplatte 8 sind zwei parallel zueinander angeordnete Schneidlineale, nämlich das obere und untere Schneidlineal 4 bzw. 5 vorgesehen. Zwischen den beiden Schneidlinealen 4 und 5 befindet sich eine Öffnung, der sog. "Biß". Die Schneidlineale 4 und 5 haben die Aufgabe, das unzertrennte Doppelgewebe dem Messer zuzuleiten. Um zwei Faserdeckengewebe 9 mit derselben konstanten Deckenhöhe zu erhalten, werden die Schneidlineale 4 und 5 derart eingestellt, daß ihr Zwischenraum mit der gewünschten Faserdeckenhöhe übereinstimmt, und daß sie parallel im selben Abstand zu der Bahn des sich bewegenden Messerangriffspunktes liegen.When producing double fabrics, 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. In any case, 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. Opposite the cutting plate 8, 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. In order to obtain two fiber blanket fabrics 9 with the same constant ceiling height, 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.

Bei der Schneideinrichtung gemäß der Erfindung ist das obere und untere Schneidlineal 4 und 5 einerseits mit elektronischen Positionsfühlern 11 und 12 und andererseits mit von Elektromotoren 15 angetriebenen Einstellspindeln 13 und 14 versehen (Figuren 1 und 2). Die Positionsfühler 11 und 12 und die Elektromotoren 15 der Einstellspindeln 13 und 14 sind unter sich über einen Prozessor gekoppelt (Figur 4).In the cutting device according to the invention, 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).

Die Positionsfühler 11 und 12 geben Signale aus, die in Beziehung zu der Position jedes der Schneidlineale 4 und 5 in bezug auf das Messer stehen. Bei der in den Figuren 1 und 2 angegebenen Ausführungsform sind die Positionsfühler 11 zwischen den Außenenden jedes Schneidlineals 4 und 5 angeordnet; beispielsweise ist ihr Kern an dem unteren Schneidlineal 5 und ihr Gehäuse an dem oberen Schneidlineal 4 befestigt. Diese Positionsfühler 11 geben folglich ein Signal aus, das zu der Position der beiden Schneidlineale 4 und 5 zueinander oder zu der freien Öffnung ("Biß˝) in Beziehung steht. Der Positionsfühler 12 ist mit seinem Gehäuse 16 gegen ein Außenende beispielsweise des oberen Schneidlineals 4 befestigt. Der bewegbare Kern jenes Positionsfühlers (Figur 3) kann zwei Stellungen einnehmen: eine Ruhelage (Figur 3a) und eine Meßlage (Figur 3b). Der bewegbare Kern 17 wird unter Federwirkung in seiner Ruhelage gehalten und unter der gleichzeitigen Wirkung eines Elektromagneten in seine Meßlage gegen die Oberseite des vorübergehend stillstehenden Messers 6 gedrückt. Der Positionsfühler 12 gibt somit ein Signal aus, das in Beziehung zu der Position des oberen Schneidlineals in bezug auf das Messer 6 steht.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. In the embodiment shown in Figures 1 and 2, 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.

Die Arbeitsweise der Positionsfühler 11 und 12 beruht vorzugsweise auf der Transformatorwirkung, wobei der Primärwicklung über einen Modulator ein sinusförmiges Signal aufgeprägt und die Kopplung zu den beiden Sekundärwicklungen durch die Lage eines verstellbaren Kernes bestimmt wird. Über einen Verstärker und einen Modulator wird in Abhängigkeit von der Lage eines verschiebbaren Kernes ein lineares Ausgangssignal erhalten.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.

Die Einstellspindeln 14 wirken mit einem fest mit den Außenenden des unteren Schneidlineals verbundenen Schraubdraht zusammen und stützen sich durch ein Lager 19 gegen die Außenenden des oberen Schneidlineals 4 ab. Die Einstellspindeln 14 regeln somit die Größe des Abstandes zwischen den Schneidlinealen, und die Einstellspindeln 13 wirken mit einem fest am Rahmen 18 des Webstuhles angebundenen Schraubdraht zusammen und stützen sich über ein axiales Lager 19 gegen die Außenenden des oberen Schneidlineals 4 ab. Die Einstellspindeln 13 stellen somit die Position des Zwischenraumes in bezug auf das Messer 6 ein. Jede Einstellspindel wird von einem Elektromotor 15 angetrieben, der von einem Prozessor aus gesteuert wird.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.

In der Figur 4 sind die Positionsfühler 11 am Außenende der beiden Schneidlineale 4 und 5, der Positionsfühler 12, der nur an einem Außenende der Schneidlineale 4 und 5 vorgesehen ist, und die Elektromotoren 15 des jeweiligen Einstellspindelpaares 13 bzw. 14 wiedergegeben. Die Meßsignale der Positionsfühler 11, 12 werden in einer Zwischeneinheit (Schnittstelle) 20 mit einem Filter 21, einem Multiplexer 22 und einem Analog/Digital-Wandler 23 in ein digitales Signal umgewandelt, das einem Prozessor 24 zugeleitet wird, an dem eine Tastatur und ein Bildschirm 25 angeschlossen sind. Der Prozessor 24 treibt über einen Puffer 26 die Elektromotoren 15 an und führt zugleich den Kern 17 des Positionsfühlers 12 aus seiner Ruhelage in seine Meßlage. Auf Grund der über die Tastatur eingebrachten Daten über die Sollposition und Größe des Schneidlinealabstandes und der von den Positionsfühlern 11 und 12 empfangenen Meßdaten über die Lage und Größe des Schneidlinealabstandes stellt der Prozessor die Elektromotoren 15 ein. Dabei kann es notwendig sein, daß die Einstellspindeln 13, die diesen Abstand bezüglich des Messers 6 und somit des Rahmens in die richtige Lage bringen, mit einer zusätzlichen Meßeinrichtung zu versehen sind, die die Daten über die Lage des Schneidlinealabstandes bezüglich des Rahmens angibt, da das Messer 6 wegen der federnden Anordnung des Schneidwagens 7 keinen absoluten Bezugspunkt darstellt. Jene Daten können dann wie in Figur 4 dem Prozessor 24 zugeführt werden.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.

Es ist einleuchtend, daß die beiden Schneidlineale 4 und 5 mit zwei eigenen Einstellspindeln versehen sein können, die sich in bezug auf den Rahmen einstellen und dann gegenseitig unabhängig voneinander in bezug auf den Rahmen eingestellt werden können, und daß die Lage der Außenenden der Schneidlineale 4 und 5 bezüglich des Rahmens durch eigene Positionsfühler kontrolliert werden kann, damit in einer bekannten Position des Messers bezüglich des Rahmens der Prozessor die Elektromotoren der Einstellspindeln steuern kann. Eine weniger ausgearbeitete Ausführungsform der Erfindung verfügt nicht über die gesteuerten Elektromotoren an den Einstellspindeln und verlangt auf Grund einer ununterbrochenen Messung der Größe und Lage des Schneidlinealabstandes, der mit der Einrichtung gemäß der Erfindung erhalten wird, eine Handeinstellung der Schneidlineale 4 und 5.It is obvious that 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.

Die Einrichtung gemäß der Erfindung ermöglicht, die Lage und Größe des Schneidlinealabstandes ständig, auch während des Webens zu kontrollieren. Bei der Umschaltung des Webstuhles kann der Schneidlinealabstand einfach und schnell angepaßt und eingestellt werden.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.

Claims (10)

1. Cutting device to split a face-to-face woven fabric consisting of a fixed cutting bank (8), over which a knife carriage (7) provided with a knife blade (6) moves to and fro, and of a top cutting rail (4) and a bottom cutting rail (5), both of which are arranged for vertical adjustment in relation to the fixed cutting bank (8), and which form top and bottom guides for the unsplit face-to-face fabric (3), characterized in that the cutting device is provided with one or more electronic displacement transducers which produces a signal proportional to the position of the top and bottom cutting rails (4, 5) respectively in relation to the knife blade.
2. Cutting device according to claim 1, characterized in that the electronic displacement transducer (11, 12) is disposed between the ends of the cutting rails and fixed reference points on the loom.
3. Cutting device according to claim 1, characterized in that the electronic displacement transducer (11, 12) is disposed, on the one hand, between the top or bottom cutting rail and fixed reference points on the loom and, on the other hand, between the two cutting rails.
4. Cutting device according to claim 3, characterized in that the fixed reference points are the upper side or the underside of the knife blade (6).
5. Cutting device according to claim 1, in which the cutting rails (4, 5) are arranged so as to be movable up and down by auxiliary guide means, characterized in that one or more adjusting spindles (13, 14), driven by an electric motor (15), acts on each of the cutting rails (4, 5).
6. Cutting device according to claim 5, characterized in that the adjusting spindles (13, 14) engage with a screw thread, fastened to the frame (18) of the loom, and cooperate with an exial bearing (19) in the ends of one of the cutting rails (4, 5).
7. Cutting device according to claim 5, characterized in that the adjusting spindles (13, 14) engage in a screw thread in an end of the cutting rails (4, 5) and cooperate with an axial bearing (19) fastened to the frame (18) of the loom.
8. Cutting device according to claim 5, characterized in that a first group of adjusting spindles (14) bears against the top cutting rail (4) or bottom cutting rail (5) and cooperates with a screw thread provided respectively in the bottom cutting rail (5) or top bottom rail (4), and in that a second group of adjusting spindles (13) bears against components fastened to the frame (18) of the loom, or on the top cutting rail (4) or on the bottom cutting rail (5) and cooperates with a screw thread which is provided in the ends of the top cutting rails (4) or bottom cutting rail (5) or on components fastened to the frame (18) of the loom.
9. Cutting device according to one of the preceding claims, provided with a processor unit (24), to which means (25) for inputting and displaying data are connected, and which receives measurement data form the electronic displacement transducers and controls the electric motors of the adjusting spindles on the basis of the data input by the means regarding a desired position of the cutting rails and on the basis of the measurement data, so that the desired positon of the cutting rails is obtained.
10. Loom for face-to-face fabrics, provided with a cutting device according to one or more of the preceding claims.
EP88116962A 1987-10-12 1988-10-12 Device to readjust the height of the cutting wire of a cutting mechanism in double plush looms Expired - Lifetime EP0316575B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8701167 1987-10-12
BE8701167A BE1000995A4 (en) 1987-10-12 1987-10-12 Device for regulating the bite into the cutter unit piece of double looms.

Publications (2)

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

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EP88116962A Expired - Lifetime EP0316575B1 (en) 1987-10-12 1988-10-12 Device to readjust the height of the cutting wire of a cutting mechanism in double plush looms

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US (1) US4892120A (en)
EP (1) EP0316575B1 (en)
BE (1) BE1000995A4 (en)
DD (1) DD283168A5 (en)
DE (1) DE3864383D1 (en)
ES (1) ES2026623T3 (en)

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Publication number Priority date Publication date Assignee Title
BE1003628A5 (en) * 1990-05-21 1992-05-05 Wiele Michel Van De Nv Lancettenhouder.
BE1008719A5 (en) * 1994-09-14 1996-07-02 Wiele Michel Van De Nv CUTTING DEVICE FOR A PIECE DOUBLE-loom.
DE19713089C2 (en) * 1997-03-27 2000-07-27 Dornier Gmbh Lindauer Method and device for controlling and monitoring the cutting function of an electric motor-operated thread scissors in weaving machines
BE1015479A3 (en) * 2003-04-23 2005-04-05 Wiele Michel Van De Nv Balanced bite measurement.
BE1022811A9 (en) * 2015-03-12 2016-10-04 Wiele Michel Van De Nv CLOSING THE POSITION OF THE WIDTHS OF A WEAVING GUIDANCE DEVICE
BE1022813A9 (en) * 2015-03-12 2016-10-04 Wiele Michel Van De Nv ARRANGEMENT OF THE INTERCONNECTION OF THE WIDTHS OF A TISSUE GUIDANCE DEVICE
DE102018211531B4 (en) 2018-07-11 2020-03-05 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Loom and method for guiding a fabric in a loom

Family Cites Families (5)

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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 (en) * 1980-11-04 1982-05-07 Avrin Bernard Face=to=face velvets - monitored continuously by electronic system to adjust cutter position and control pile height
DD161206A3 (en) * 1981-12-09 1985-05-29 Halbmond Teppiche Oelsnitz Vog DEVICE FOR FLOOR LEVEL MONITORING IN DOUBLE FLOOR WOVEN
FR2527654A1 (en) * 1982-05-26 1983-12-02 Alsacienne Constr Meca IMPROVEMENT TO HAIR CUTTING DEVICES FOR DOUBLE LAPPED VELVET MACHINE
FR2562566B1 (en) * 1984-04-09 1986-06-06 Menissier Pierre APPARATUS FOR SEPARATING IN TWO VELVET-LIKE TABLECLOTS A TEXTILE OR PARATEXTILE PRODUCT COMPOSED OF TWO TABLECLOTHS RETAINING TENSIONED BETWEEN BOTH A NETWORK OF NATURAL, SYNTHETIC OR METALLIC TEXTILE THREADS

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US4892120A (en) 1990-01-09
DE3864383D1 (en) 1991-09-26
ES2026623T3 (en) 1992-05-01
DD283168A5 (en) 1990-10-03
EP0316575A1 (en) 1989-05-24
BE1000995A4 (en) 1989-05-30

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