EP0241036A2 - Cutting device for a double plush loom, especially a drive mechanism for such a cutting device, and a loom with such a cutting device - Google Patents
Cutting device for a double plush loom, especially a drive mechanism for such a cutting device, and a loom with such a cutting device Download PDFInfo
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- EP0241036A2 EP0241036A2 EP87105283A EP87105283A EP0241036A2 EP 0241036 A2 EP0241036 A2 EP 0241036A2 EP 87105283 A EP87105283 A EP 87105283A EP 87105283 A EP87105283 A EP 87105283A EP 0241036 A2 EP0241036 A2 EP 0241036A2
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- Prior art keywords
- shaft
- drive
- cutting
- drive shaft
- drive according
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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 invention relates to the cutting device of a double-piece weaving machine.
- Such a cutting device cuts through the pile threads, which connect the two base fabrics, so that two pile fabrics (separated from one another) are then obtained.
- the invention relates to the drive for the cutting carriage of such a cutting device.
- the cutting carriage moves back and forth across the cutting bench, which is arranged across the width of the weaving machine, and cuts a series of pile threads with each pass.
- the drives known to date for such a cutting device mainly consist of a crank or a traction device which is driven by the drive of the weaving machine with a crank mechanism or a rotating crank mechanism which moves in a forward and backward movement over a limited circular sector.
- the end of this crank or pulling device interacts with a roller pulling element, the rope of which is guided across the width of the loom and along the cutting bench and is connected to the cutting carriage.
- the roller pulling element converts the relatively short stroke of the end of the crank or pulling device into a larger stroke which corresponds to the desired movement of the cutting carriage.
- Another existing drive consists of a crank mechanism, which is coupled to a tooth sector, which in turn is coupled via a transmission to a drum, on which a cable is arranged, which, connected to the cutting carriage, rolls up or rolls onto / from the for this intended width of the drum.
- This drive also has the disadvantage that, given the effect of the mass of the toothed sector and that of the drum, it is not suitable for high working speeds.
- the aim of the invention is to eliminate these disadvantages by creating a simpler and more compact drive for the cutting carriage of the cutting device for a double-piece weaving machine. It is also the object of the invention to provide a drive which can be easily adapted to the width of the weaving machine and to the width of the fabric.
- the drive according to the invention is characterized by a swivel body, one end of which is rotatably connected to a shaft which is oriented at a right angle, and is fixedly connected to an oscillating shaft which is rotatably arranged in the weaving machine, and of which the other end is rotatable and is eccentrically connected to a drive shaft driven by the drive shaft of the loom.
- the drive according to the invention is further characterized by a cyclic gear or planetary gear, which is connected on the one hand to the oscillation shaft which carries the swivel body, and on the other hand is connected to the cutting carriage via a drive element.
- the Schwenlckelasticity (1) in Figure 1 runs on one side on a bracket (2) which is rotatably connected to an axis (3) and which engages around an oscillation shaft (4) on which the axis (3) at right angles and firmly mounted.
- the sleeve (6) sits tightly around the oscillation shaft (4), so that the shaft (3) of both pins (5) is aligned at right angles to the oscillation shaft (4).
- the swivel body (1) can consequently on the one hand rotate about the axis (3) via a circular sector limited by the shape, and on the other hand can rotate together with the oscillation shaft (4).
- the swivel body (1) runs out onto a round point of attack (7) which is rotatably and eccentrically connected to the drive shaft (8).
- the eccentric connection between the point of attack (7) and the drive shaft (8) consists, for example, of a convex-concave disk (9) which is firmly connected to the drive shaft (8) and which is connected to its edge an opening (10) is provided, in which the point of attack (7) is rotatably mounted.
- the longitudinal axis (11) of the swivel body (1) describes a conical surface (dashed line, Figure 1).
- the oscillating swivel body (1) forces the shaft (3) or the pins (5) to pivot back and forth, so that the oscillation shaft (4) also rotates back and forth within a limited angle.
- the swivel body (1) is rotatably connected via the bracket (2) to the pins (5), which are arranged at right angles on the oscillation shaft (4) by means of a sleeve (6); the point of attack (7), which is rotatably and eccentrically in the convex-concave disc (9) on the drive shaft (8).
- the oscillation shaft (4) is the input shaft, for example of the cyclo drive (12).
- the shaft (13) is the output shaft of the cyclo drive (12).
- This toothed belt (15) is then connected to the cutting carriage (16), which runs over the cutting bench (17) and around a row of guide toothed wheels (18), FIG. 3, across the width of the loom at the top along the cutting bench (17) and at the bottom back, running.
- Another way of transferring the movement of the shaft (13) to the cutting carriage (16) is to use a rope which rolls up and down around a drum which is mounted on the shaft (13) and which one Cutting bench (17) is guided along and is attached to the cutting carriage (16) there.
- the cyclic gear (12) converts the back and forth rotation within a limited angle of the oscillation shaft (4) into a number of revolutions of the shaft (13). If the oscillation wave (4) for example rotated back and forth at an angle of 60 degrees, the shaft (13) will rotate back and forth with 6 revolutions when the cyclo-transmission (12) works with a gear ratio of 36.
- the motion amplification can also be realized with a planetary gear, with a gear "amplifier” or a combination instead of with a cyclo gear.
- the gears (19) are interchangeable, so that the drive shaft (8) with a determined by the choice of these gears rotates ratio to the main shaft of the loom. This ratio can be 1: 2, 1: 3 or 1: 4.
- the choice determines the number of aisles of the cutting carriage, which is available for a certain number of the reed stop. This represents the first setting option of the drive according to the invention.
- the drive according to the invention can therefore be easily adapted to the width of the weaving machine; it is sufficient to mount a gear (14) or a drum on the shaft (13), which (s) converts the number of turns that the shaft (13) experiences during a direction of movement into a suitable stroke length of the toothed belt (15) or Rope and thus that of the cutting carriage (16). Carpet, velvet or plush fabrics of different widths can be produced on a weaving machine with a certain width.
- the drive according to the invention also offers here a simple scheme. It is sufficient to make the eccentricity (the distance from the center) of the point of application (7) larger than the drive shaft (8), Figure 2, in order to get a longer distance of the cutting carriage.
- This eccentricity can be adjusted by arranging a larger disk (9), FIG. 1, on the drive shaft (8) or by the disk (9) towards the oscillation shaft (4) opposite the drive shaft (8). is moved.
- the point of attack (7) must not only be rotatable, but also be displaceably and tiltably connected to the disk (9).
- the disc (9) can also be replaced by a rod with adjustable length.
- Figure 4 shows a preferred embodiment of the adjustable, eccentric connection between the drive shaft (8) and swivel body (1).
- This cylindrical end is rotatably seated in an opening (10) near the edge of the disc (9).
- This convex-concave disc (9) forms the cylindrical surface of a cylinder segment.
- the outer surface or the surface oriented towards the drive shaft (8) is designed to form a friction connection by means of screws.
- the disc (9) is provided with one or more slots (23), as a result of which the disc (9) can be displaced over a certain distance by the screws (24) which pass through these slots (23).
- the drive shaft (8) runs out on a flat disc (25) in which a cylindrical groove is made.
- the convex-concave disc (9) and the flat disc (25) fit on them Way in different positions on each other.
- the washer is also provided with threaded holes (27) into which the screws (24) fit.
- Both disks (9 and 25) can consequently be connected to one another in a certain position with a friction lock by clamping the screws (24).
- the slots (23) limit the setting of the eccentricity between the point of attack (7) and the drive shaft (8) by their length. In this way, the drive according to the invention can be easily adapted to the fabric width.
- the pinion (20) on the shaft (21), Figure 3, for the switching function allows the cutting device drive to be switched on and off in a simple manner. It is sufficient to shift the switching pinion (20) on the shaft (21) in order to decouple the drive. However, the drive must be blocked, on the one hand to lock the cutting carriage (16) on one end of the cutting bench (17), and on the other hand to maintain the synchronization between the weaving operation and the cutting operation when weaving double pieces with the pinion (20) switched on. To do this, it is sufficient to lock one of the gears (19) when uncoupling the pinion (20).
- the drive of the cutting device which can be switched on and off in a simple manner, makes the weaving machine much more polyvalent: the weaving machine can be used either for weaving double pieces or for simple weaving.
- the advantages of the cutting device according to the invention in particular the drive for a cutting device according to the invention for double-piece weaving machines, are thus obvious.
- the drive according to the invention is much more compact, which not only saves a lot of space and weight, but also and above all allows a higher number of revolutions for the weaving machine, in view of the fact that the one to be set in motion Mass is reduced compared to known drives.
- the drive according to the invention allows a much easier adjustment of the cutting movement.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
Abstract
Description
Die Erfindung bezieht sich auf die Schneideinrichtung einer Doppelstück-Webmaschine. Eine derartige Schneideinrichtung schneidet die Polfäden, welche beide Grundgewebe verbinden, durch, so dass dann zwei (voneinander) getrennte Polgewebe erzielt werden.The invention relates to the cutting device of a double-piece weaving machine. Such a cutting device cuts through the pile threads, which connect the two base fabrics, so that two pile fabrics (separated from one another) are then obtained.
Insbesondere bezieht sich die Erfindung auf dem Antrieb für den Schneidwagen einer derartigen Schneideinrichtung. Der Schneidwagen bewegt sich über die Schneidbank, die über die Breite der Webmaschine angeordnet ist, in einer Vorwärts- und Rückwärtsbewegung und schneidet bei jedem Durchgang eine Reihe Polfäden durch.In particular, the invention relates to the drive for the cutting carriage of such a cutting device. The cutting carriage moves back and forth across the cutting bench, which is arranged across the width of the weaving machine, and cuts a series of pile threads with each pass.
Die bis heute bekannten Antriebe für eine derartige Schneideinrichtung bestehen in der Hauptsache aus einer Kurbel oder einer Zugvorrichtung, die vom Antrieb der Webmaschine aus mit einem Kurbelmechanismus oder einem rotierenden Kurbelmechanismus angetrieben wird, die sich in einer Vorwärts- und Rückwärtsbewegung über einen begrenzten Kreissektor bewegt. Das Ende dieser Kurbel- oder Zugeinrichtung wirkt mit einem Rollenzugelement zusammen, dessen Seil über die Breite des Webstuhls und entlang der Schneidbank geführt wird und mit dem Schneidwagen verbunden ist. Das Rollenzugelement setzt der relativ kurzen Hub des Endes der Kurbel- oder Zugvorrichtung in ein grosseren Hub um, der mit der gewünschten Bewegung des Schneidwagens übereinstimmt.The drives known to date for such a cutting device mainly consist of a crank or a traction device which is driven by the drive of the weaving machine with a crank mechanism or a rotating crank mechanism which moves in a forward and backward movement over a limited circular sector. The end of this crank or pulling device interacts with a roller pulling element, the rope of which is guided across the width of the loom and along the cutting bench and is connected to the cutting carriage. The roller pulling element converts the relatively short stroke of the end of the crank or pulling device into a larger stroke which corresponds to the desired movement of the cutting carriage.
Der Nachteil dieses Antriebs ist zweifach : Einerseits ist dieser Antrieb an die Gewebebreite schwierig anzupassen. Andererseits ist dies die schwere Masse des Antriebs. Die Trägheit dieser Masse begrenzt die Vorwärts-und Rückwärtsbewegungsfrequenz des Schneidwagens und somit die Tourenzahl (i.S. Höchstgeschwindigkeit in Schusse pro Minute) der Webmaschine.The disadvantage of this drive is twofold: On the one hand, this drive is difficult to adapt to the fabric width. On the other hand, this is the heavy mass of the drive. The inertia of this mass limits the forward and backward movement frequency of the cutting carriage and thus the number of revolutions (iS maximum speed in wefts per minute) of the weaving machine.
Ein anderer esistierender Antrieb besteht aus einem Kurbelmechanismus, der an einen Zahnsektor gekuppelt ist, der seinerseits über eine Transmission an eine Trommel gekoppelt ist, auf welcher ein Seil angeordnet ist, das, verbunden mit dem Schneidwagen, aufrollt beziehungsweise abrollt auf die/von der dafür vorgesehenen Breite der Trommel. Dieser Antrieb hat auch den Nachteil, dass er in Anbetracht der Auswirkung der Masse des Zahnsektors wie derjenigen der Trommel für hohe Arbeitsgeschwindigkeiten nicht geeignet ist.Another existing drive consists of a crank mechanism, which is coupled to a tooth sector, which in turn is coupled via a transmission to a drum, on which a cable is arranged, which, connected to the cutting carriage, rolls up or rolls onto / from the for this intended width of the drum. This drive also has the disadvantage that, given the effect of the mass of the toothed sector and that of the drum, it is not suitable for high working speeds.
Die Erfindung hat zum Ziel, diese Nachteile dadurch zu beseitigen, dass ein einfacherer und kompakterer Antrieb für den Schneidwagen der Schneideinrichtung für eine Doppelstück-Webmaschine geschaffen wird. Ferner ist es das Ziel der Erfindung, einen auf eine einfache Weise an die Breite der Webmaschine und an die Breite des Gewebes anpassungsfähigen Antrieb zu schaffen.The aim of the invention is to eliminate these disadvantages by creating a simpler and more compact drive for the cutting carriage of the cutting device for a double-piece weaving machine. It is also the object of the invention to provide a drive which can be easily adapted to the width of the weaving machine and to the width of the fabric.
Der Erfindungsgemässe Antrieb wird gekennzeichnet durch einen Schwenkkörper, von dem ein Ende drehbar mit einer Welle verbunden ist, die rechtwinklig ausgerichtet ist auf, und fest verbunden ist mit einer Oszillationswelle, die in der Webmaschine drehbar angeordnet ist, und von dem das andere Ende drehbar und exzentrisch mit einer von der Antriebswelle der Webmaschine angetriebenen Antriebswelle verbunden ist.The drive according to the invention is characterized by a swivel body, one end of which is rotatably connected to a shaft which is oriented at a right angle, and is fixedly connected to an oscillating shaft which is rotatably arranged in the weaving machine, and of which the other end is rotatable and is eccentrically connected to a drive shaft driven by the drive shaft of the loom.
Der erfindungsgemässe Antrieb wird ferner gekennzeichnet durch ein Zyklogetriebe oder Planetengetriebe, welches einerseits mit der Oszillationswelle, welche den Schwenkkörper trägt, verbunden ist, und andererseits über ein Triebelement mit dem Schneidwagen verbunden ist.The drive according to the invention is further characterized by a cyclic gear or planetary gear, which is connected on the one hand to the oscillation shaft which carries the swivel body, and on the other hand is connected to the cutting carriage via a drive element.
Der erfindungsgemässe Antrieb kann unter unterschiedlichen Ausführungsformen realisiert werden. Als Beispiel, ohne jedweden einschränkenden Charakter, folgt nachstehend eine ausführliche Beschreibung einer möglichen Ausführungsform eines erfindungsgemässen Antriebs. Diese Beschreibung verweist auf die beigefügten Figuren, in den (bedeuten) :
- Figur 1 : Schematische perspektivische Sicht auf dem Schwenkkörper und dessen Anordnung.
- Figur 2 : Teilweise Draufsicht auf die Schneideinrichtung mit erfindungsgemässen Antrieb.
- Figur 3 : Teilweise Voransicht der Schneideinrichtung mit erfindungsgemässen Antrieb.
- Figur 4 : Schnitt der Oszillationswelle mit Markierung von Antriebswelle, Schwenkkörper und -deren einstellbaren Verbindung.
- Figure 1: Schematic perspective view of the swivel body and its arrangement.
- Figure 2: Partial top view of the cutting device with the drive according to the invention.
- Figure 3: Partial preview of the cutting device with the drive according to the invention.
- Figure 4: Section of the oscillation shaft with marking of the drive shaft, swivel body and their adjustable connection.
Der Schwenlckörper (1) in Figur 1 läuft an einer Seite auf einen Bügel (2) aus, der mit einer Achse (3) drehbar verbunden ist, und der um eine Oszillationswelle (4) greift, auf der die Achse (3) rechtwinklig und fest montiert sitzt. Die Welle (3) besteht in der Hauptsache aus zwei= Zapfen (5), die in ihrer beiderseitigen Verlängerung an beiden Seiten einer Hülse (6) angebracht sind. Die Hülse (6) sitzt fest um die Oszillationswelle (4), so dass die Welle (3) von beiden Zapfen (5) rechtwinklig auf die Oszillationswelle (4) ausgerichtet ist. Der Schwenkkörper (1) kann demzufolge einerseits über einen durch die Form begrenzten Kreissektor um die Achse (3) drehen, und kann andererseits zusammen mit der Oszillationswelle (4) mitdrehen.The Schwenlckkörper (1) in Figure 1 runs on one side on a bracket (2) which is rotatably connected to an axis (3) and which engages around an oscillation shaft (4) on which the axis (3) at right angles and firmly mounted. The shaft (3) mainly consists of two = pins (5), which are attached to both sides of a sleeve (6) in their extension on both sides. The sleeve (6) sits tightly around the oscillation shaft (4), so that the shaft (3) of both pins (5) is aligned at right angles to the oscillation shaft (4). The swivel body (1) can consequently on the one hand rotate about the axis (3) via a circular sector limited by the shape, and on the other hand can rotate together with the oscillation shaft (4).
Auf sein anderes Ende zu läuft der Schwenkkörper (1) auf einen runden Angriffspunkt (7) aus, der drehbar und exzentrisch mit der Antriebswelle (8) verbunden ist. Die exzentrische Verbindung zwischen Angriffspunkt (7) und Antriebswelle (8) besteht beispielsweise aus einer Konvex-Konkav-Scheibe (9) welche mit der Antriebswelle (8) fest verbunden ist, und die zu ihrem Rand hin mit einer Öffnung (10) versehen ist, in die der Angriffspunkt, (7) drehbar montiert ist. Dreht sich die Antriebswelle (8), beschreibt die Längen-Achse (11) des Schwenkkörpers (1) eine Kegelmantelfläche (gestrichelte Linie, Figur 1). Der oszillierende Schwenkkörper (1) zwingt die Welle (3) oder die Zapfen (5) hin und zurück zu schwenken, so dass auch die Oszillationswelle (4) pendelnd innerhalb eines begrenzten Winkels hin und zurück dreht.Towards its other end, the swivel body (1) runs out onto a round point of attack (7) which is rotatably and eccentrically connected to the drive shaft (8). The eccentric connection between the point of attack (7) and the drive shaft (8) consists, for example, of a convex-concave disk (9) which is firmly connected to the drive shaft (8) and which is connected to its edge an opening (10) is provided, in which the point of attack (7) is rotatably mounted. If the drive shaft (8) rotates, the longitudinal axis (11) of the swivel body (1) describes a conical surface (dashed line, Figure 1). The oscillating swivel body (1) forces the shaft (3) or the pins (5) to pivot back and forth, so that the oscillation shaft (4) also rotates back and forth within a limited angle.
In Figur 2 sind dieselben Elemente bezeichnet : Der Schwenkkörper (1) über den Bügel (2) drehbar verbunden mit den Zapfen (5), welche mittels einer Hülse (6) rechtwinklig auf der Oszillationswelle (4) angeordnet sind; der Angriffspunkt (7), der drehbar und exzentrisch in der Konvex-Konkav-Scheibe (9) auf der Antriebswelle (8) sitzt.The same elements are designated in FIG. 2: the swivel body (1) is rotatably connected via the bracket (2) to the pins (5), which are arranged at right angles on the oscillation shaft (4) by means of a sleeve (6); the point of attack (7), which is rotatably and eccentrically in the convex-concave disc (9) on the drive shaft (8).
Die Oszillationswelle (4) ist die Eingangswelle, beispielsweise des Zyklogetriebes (12). Die Welle (13) ist die Ausgangswelle des Zyklogetriebes (12). Auf dieser Welle (13) sitzt beispielsweise ein Zahnrad (14), um das herum ein Zahnriemen (15) läuft.The oscillation shaft (4) is the input shaft, for example of the cyclo drive (12). The shaft (13) is the output shaft of the cyclo drive (12). A gear (14), for example, around which a toothed belt (15) runs sits on this shaft (13).
Dieser Zahnriemen (15) ist dann mit dem Schneidwagen (16) verbunden, der über die Schneidbank (17) läuft und um eine Reihe von Führungszahnrädern (18), Figur 3, über die Breite des Webstuhls zuoberst entlang der Schneidbank (17) und zuunterst zurück, läuft.This toothed belt (15) is then connected to the cutting carriage (16), which runs over the cutting bench (17) and around a row of guide toothed wheels (18), FIG. 3, across the width of the loom at the top along the cutting bench (17) and at the bottom back, running.
Eine andere Möglichkeit, die Bewegung der Welle (13) auf den Schneidwagen (16) zu übertragen, ist die, ein Seil zu verwenden, das um eine Trommel, welche auf die Welle (13) montiert ist, auf- und abrollt und welches der Schneidbank (17) entlang geführt wird und dort an dem Schneidwagen (16) befestigt ist.Another way of transferring the movement of the shaft (13) to the cutting carriage (16) is to use a rope which rolls up and down around a drum which is mounted on the shaft (13) and which one Cutting bench (17) is guided along and is attached to the cutting carriage (16) there.
Das Zyklogetriebe (12) setzt die hin-und rückwärtsverlaufende Drehung innerhalb eines begrenzten Winkels der Oszillationswelle (4) in eine Anzahl Umdrehungen der Welle (13) um. Wenn die Oszillationswelle (4) beispielsweise hin und her pendelnd unter einem Winkel von 60 Grad rotiert, wird die Welle (13) mit 6 Umdrehungen hin und zurück drehen, wenn das Zyklogetriebe (12) mit einem Übersetzung von 36 arbeitet. Die Bewegungsverstärkung kann auch mit einem Planetengetriebe, mit einem Zahnrad- "Verstärker" oder Kombination statt mit einem Zyklogetriebe realisiert werden.The cyclic gear (12) converts the back and forth rotation within a limited angle of the oscillation shaft (4) into a number of revolutions of the shaft (13). If the oscillation wave (4) for example rotated back and forth at an angle of 60 degrees, the shaft (13) will rotate back and forth with 6 revolutions when the cyclo-transmission (12) works with a gear ratio of 36. The motion amplification can also be realized with a planetary gear, with a gear "amplifier" or a combination instead of with a cyclo gear.
Die Antriebswelle (8), auf der die Konvex-Konkav-Scheibe (9) sitzt, welche mit dem Angriffspunkt (7) des Schwenkkörpers (1) (Figur 1 und 2) zusammenspielt, wird über eine Reihe Zahnräder (19) von einem Schaltritzel (20) aus angetrieben, welches seinerseits über eine Welle (21) und eine Kupplung (nicht dargestellt) von der Hauptwelle der Webmaschine aus angetrieben wird, Figur 3. Die Zahnräder (19) sind auswechselbar, so dass die Antriebswelle (8) mit einem durch die Wahl dieser Zahnräder bestimmten Verhältnis zur Hauptwelle der Webmaschine rotiert. Dieses Verhältnis kann 1:2, 1:3 oder 1:4 sein. Die Wahl bestimmt die Anzahl Gänge des Schneidwagens, welche sich für einen bestimmten Zahl des Riedblattanschlags gibt. Dies stellt die erste Einstellmöglichkeit des erfindungsgemässen Antriebs dar.The drive shaft (8), on which the convex-concave disc (9) sits, which interacts with the point of attack (7) of the swivel body (1) (FIGS. 1 and 2), is switched by a gear pinion via a series of gearwheels (19) (20) driven, which in turn is driven by a shaft (21) and a clutch (not shown) from the main shaft of the loom, Figure 3. The gears (19) are interchangeable, so that the drive shaft (8) with a determined by the choice of these gears rotates ratio to the main shaft of the loom. This ratio can be 1: 2, 1: 3 or 1: 4. The choice determines the number of aisles of the cutting carriage, which is available for a certain number of the reed stop. This represents the first setting option of the drive according to the invention.
Die Grösse des Zahnrades (14) oder die der Trommel mit der Seilantrieb, Figur 3, bestimmt die Hublänge, über die sich der Schneidwagen (16) hin und her bewegt. Der erfindungsgemässe Antrieb ist demzufolge auf eine einfache Weise an die Breite der Webmaschine anzupasen; es genügt, auf die Welle (13) ein Zahnrad (14) oder eine Trommel zu montieren, welche (s) die Anzahl Touren, die die Welle (13) während einer Bewegungsrichtung erfährt, umsetzt in eine passende Hublänge des Zahnriemens (15) oder Seiles und damit die des Schneidwagens (16). Auf einer Webmachine mit einer bestimmten Breite können Teppich-, Samt- oder Plüschgewebe unterschiedlicher Breite gefertigt werden. Auch hier bietet der erfindungsgemässe Antrieb eine einfache Regelung. Es genügt, die Exzentrizität (die Entfernung vom Mittelpunkt) des Angriffspunktes (7) gegenüber der Antriebswelle (8), Figur 2, grösser zu machen, um eine längere Strecke des Schneidwagens zu bekommen.The size of the gear wheel (14) or that of the drum with the cable drive, FIG. 3, determines the stroke length over which the cutting carriage (16) moves back and forth. The drive according to the invention can therefore be easily adapted to the width of the weaving machine; it is sufficient to mount a gear (14) or a drum on the shaft (13), which (s) converts the number of turns that the shaft (13) experiences during a direction of movement into a suitable stroke length of the toothed belt (15) or Rope and thus that of the cutting carriage (16). Carpet, velvet or plush fabrics of different widths can be produced on a weaving machine with a certain width. The drive according to the invention also offers here a simple scheme. It is sufficient to make the eccentricity (the distance from the center) of the point of application (7) larger than the drive shaft (8), Figure 2, in order to get a longer distance of the cutting carriage.
Das Einstellen dieser Exzentrizität kann dadurch bewerkstelligt werden, dass eine grössere Scheibe (9), Figur 1, auf der Antriebswelle (8) angeordnet wird, oder dadurch, dass die Scheibe (9) zur Oszillationswelle (4) hin gegenüber die Antriebswelle (8) versetzt wird. Dazu muss der Angriffspunkt (7) nicht allein drehbar, sondern auch verschiebbar und kippbar mit der Scheibe (9) verbunden sein. Die Scheibe (9) kann auch durch eine Stange mit regelbarer Länge ersetzt werden. Figur 4 zeigt eine vorzugsweise Ausführungsform der einstellbaren, exzentrischen Verbindung zwischen Antriebswelle (8) und Schwenkkörper (1). In Figur 4 sind die Oszillationswelle (4), die Hülse (6), die Achse (3) in der Form von zwei Zapfen (5), der Bügel (2) und der Angriffspunkt (7) des Schwenkkörpers (1), welcher eine Längen-Achse (11) hat, die Antriebswelle (8) sowie die Konvex-Konkav-Scheibe (9) angedeutet. Der Angriffspunkt (7) besteht aus einem zylindrischen Ende des Schwenkkörpers (1).This eccentricity can be adjusted by arranging a larger disk (9), FIG. 1, on the drive shaft (8) or by the disk (9) towards the oscillation shaft (4) opposite the drive shaft (8). is moved. For this purpose, the point of attack (7) must not only be rotatable, but also be displaceably and tiltably connected to the disk (9). The disc (9) can also be replaced by a rod with adjustable length. Figure 4 shows a preferred embodiment of the adjustable, eccentric connection between the drive shaft (8) and swivel body (1). In Figure 4, the oscillation shaft (4), the sleeve (6), the axis (3) in the form of two pins (5), the bracket (2) and the point of attack (7) of the swivel body (1), which one Length axis (11) has indicated the drive shaft (8) and the convex-concave disc (9). The point of attack (7) consists of a cylindrical end of the swivel body (1).
Dieses zylindrische Ende sitzt drehbar in einer Öffnung (10) nahe dem Rand der Scheibe (9). Diese Konvex-Konkav-Scheibe (9) bildet die zylindrische Fläche eines Zylindersegments. Die Aussenfläche oder die zur Antriebswelle (8) hin orientierte Fläche ist so ausgelegt, um eine Reibsverbindung mittels Schrauben zu bilden. Ferner ist die Scheibe (9) mit einer oder mehreren Schlitze (23) versehen, wodurch die Scheibe (9) über eine, gewisse Strecke um die Schrauben (24), welche durch diese Schlitze (23) hindurch gehen, zu verschieben ist. Die Antriebswelle (8) läuft auf eine flache Scheibe (25) aus, in welcher eine zylindrische Rille angebracht ist. Die Konvex-Konkav-Scheibe (9) und die flache Scheibe (25) passen auf diese Weise in unterschiedlichen Stellungen aufeinander. Ferner ist die Scheibe mit Gewindelöchern (27) versehen, in welche die Schrauben (24) passen. Beide Scheiben (9 und 25) können folglich in einer bestimmten Position mit einem Reibverschluss gegeneinander durch das Einspannen der Schrauben (24) verbunden werden. Die Schlitze (23) begrenzen das Einstellen der Exzentrizität zwischen Angriffspunkt (7) und Antriebswelle (8) durch ihre Länge. Auf diese Weise kann der erfindungsgemässe Antrieb auf einfache Weise an die Gewebebreite angespasst werden.This cylindrical end is rotatably seated in an opening (10) near the edge of the disc (9). This convex-concave disc (9) forms the cylindrical surface of a cylinder segment. The outer surface or the surface oriented towards the drive shaft (8) is designed to form a friction connection by means of screws. Furthermore, the disc (9) is provided with one or more slots (23), as a result of which the disc (9) can be displaced over a certain distance by the screws (24) which pass through these slots (23). The drive shaft (8) runs out on a flat disc (25) in which a cylindrical groove is made. The convex-concave disc (9) and the flat disc (25) fit on them Way in different positions on each other. The washer is also provided with threaded holes (27) into which the screws (24) fit. Both disks (9 and 25) can consequently be connected to one another in a certain position with a friction lock by clamping the screws (24). The slots (23) limit the setting of the eccentricity between the point of attack (7) and the drive shaft (8) by their length. In this way, the drive according to the invention can be easily adapted to the fabric width.
Das Ritzel (20) auf der Welle (21), Figur 3, für die Schaltfunktion gestattet das Ein- und Ausschalten des Antriebs der Schneideinrichtung auf einfache Art und Weise. Es genügt, das Schaltritzel (20) auf der Welle (21) zu verschieben, um den Antrieb zu entkoppeln. Dabei muss jedoch der Antrieb blockiert werden, einerseits, um den Schneidwagen (16) auf einem Ende der Schneidbank (17) zu arretieren, andererseits, um die Synchronisierung zwischen dem Webbetrieb und dem Schneidbetrieb beim Weben von Doppelstücken bei eingeschaltetem Zahnritzel (20) aufrechtzuerhalten. Dafür genügt es, eines der Zahnräder (19) beim Entkoppeln des Zahnritzels (20) zu arretieren. Der auf eine einfache Weise ein- und auszuschaltende Antrieb der Schneideinrichtung macht die Webmaschine viel polyvalenter : die Webmaschine kann wahlweise eingesetzt werden für das Weben von Doppelstücken oder für einfaches Weben.The pinion (20) on the shaft (21), Figure 3, for the switching function allows the cutting device drive to be switched on and off in a simple manner. It is sufficient to shift the switching pinion (20) on the shaft (21) in order to decouple the drive. However, the drive must be blocked, on the one hand to lock the cutting carriage (16) on one end of the cutting bench (17), and on the other hand to maintain the synchronization between the weaving operation and the cutting operation when weaving double pieces with the pinion (20) switched on. To do this, it is sufficient to lock one of the gears (19) when uncoupling the pinion (20). The drive of the cutting device, which can be switched on and off in a simple manner, makes the weaving machine much more polyvalent: the weaving machine can be used either for weaving double pieces or for simple weaving.
Die Vorteile der erfindungsgemässen Schneideinrichtung, insbesondere der Antrieb für eine erfindungsgemässe Schneideinrichtung für Doppelstück-Webmaschinen liegen somit auf der Hand. Der erfindungsgemässe Antrieb ist viel kompakter, was nicht allein viel Platz- und Gewichtseinsparung mit sich bringt, sondern auch und vor allem höhere Tourenzahl der Webmaschine gestattet, dies in Anbetracht dessen, dass die in Bewegung zu setzende Masse im Vergleich zu bekannten Antrieben reduziert wird. Ferner gestattet der erfindungsgemässe Antrieb eine viel einfacherere Einstellung der Schneidbewegung.The advantages of the cutting device according to the invention, in particular the drive for a cutting device according to the invention for double-piece weaving machines, are thus obvious. The drive according to the invention is much more compact, which not only saves a lot of space and weight, but also and above all allows a higher number of revolutions for the weaving machine, in view of the fact that the one to be set in motion Mass is reduced compared to known drives. Furthermore, the drive according to the invention allows a much easier adjustment of the cutting movement.
Claims (15)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE904573 | 1986-04-10 | ||
BE1/011473A BE904573A (en) | 1986-04-10 | 1986-04-10 | CUTTING DEVICE FOR DOUBLE-PIECE WEAVING MACHINE, PARTICULARLY DRIVE FOR SUCH CUTTING DEVICE, AND WEAVING MACHINE EQUIPPED WITH SUCH CUTTING DEVICE. |
BE904573 | 1986-04-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0241036A2 true EP0241036A2 (en) | 1987-10-14 |
EP0241036A3 EP0241036A3 (en) | 1988-02-03 |
Family
ID=25661100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP8787105283A Withdrawn EP0241036A3 (en) | 1986-04-10 | 1987-04-09 | Cutting device for a double plush loom, especially a drive mechanism for such a cutting device, and a loom with such a cutting device |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0241036A3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1217115A1 (en) | 2000-12-22 | 2002-06-26 | SCHÖNHERR Textilmaschinenbau GmbH | Drive device for the knife carriage on a double carpet loom |
DE10137183A1 (en) * | 2001-07-31 | 2003-02-20 | Staeubli Gmbh | Drive device for working elements on weaving machines |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US610711A (en) * | 1898-09-13 | Knife-sled motion for plush or velvet looms | ||
FR2329906A1 (en) * | 1975-10-13 | 1977-05-27 | Multinorm Bv | DEVICE FOR TRANSFORMING A ROTARY MOVEMENT INTO A BACK-AND-BACK MOVEMENT IN AN AGRICULTURAL MACHINE WITH OSCILLATING TOOLS |
DD157349A1 (en) * | 1981-01-28 | 1982-11-03 | Bernhard Huether | DRIVE DEVICE FOR THE KNIFE SLOT ON DOUBLE CARPET WEAVING MACHINES |
DE3111424A1 (en) * | 1981-03-24 | 1982-11-25 | Hans Norbert 4060 Viersen Heesen | Cutting device for double fabrics in or outside weaving or knitting machines |
FR2515766A1 (en) * | 1981-11-03 | 1983-05-06 | Jay Electronique Sa | Transformation of rotary to oscillatory movement for control barrier - uses crank with axially rotating connecting rod to drive output shaft and electrical contacts to remove drive towards end of travel |
-
1987
- 1987-04-09 EP EP8787105283A patent/EP0241036A3/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US610711A (en) * | 1898-09-13 | Knife-sled motion for plush or velvet looms | ||
FR2329906A1 (en) * | 1975-10-13 | 1977-05-27 | Multinorm Bv | DEVICE FOR TRANSFORMING A ROTARY MOVEMENT INTO A BACK-AND-BACK MOVEMENT IN AN AGRICULTURAL MACHINE WITH OSCILLATING TOOLS |
DD157349A1 (en) * | 1981-01-28 | 1982-11-03 | Bernhard Huether | DRIVE DEVICE FOR THE KNIFE SLOT ON DOUBLE CARPET WEAVING MACHINES |
DE3111424A1 (en) * | 1981-03-24 | 1982-11-25 | Hans Norbert 4060 Viersen Heesen | Cutting device for double fabrics in or outside weaving or knitting machines |
FR2515766A1 (en) * | 1981-11-03 | 1983-05-06 | Jay Electronique Sa | Transformation of rotary to oscillatory movement for control barrier - uses crank with axially rotating connecting rod to drive output shaft and electrical contacts to remove drive towards end of travel |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1217115A1 (en) | 2000-12-22 | 2002-06-26 | SCHÖNHERR Textilmaschinenbau GmbH | Drive device for the knife carriage on a double carpet loom |
DE10137183A1 (en) * | 2001-07-31 | 2003-02-20 | Staeubli Gmbh | Drive device for working elements on weaving machines |
Also Published As
Publication number | Publication date |
---|---|
EP0241036A3 (en) | 1988-02-03 |
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