EP3859067B1 - Warp knitting machine - Google Patents

Warp knitting machine Download PDF

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Publication number
EP3859067B1
EP3859067B1 EP21178973.0A EP21178973A EP3859067B1 EP 3859067 B1 EP3859067 B1 EP 3859067B1 EP 21178973 A EP21178973 A EP 21178973A EP 3859067 B1 EP3859067 B1 EP 3859067B1
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EP
European Patent Office
Prior art keywords
bar
sections
knitting machine
warp knitting
main shaft
Prior art date
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Active
Application number
EP21178973.0A
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German (de)
French (fr)
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EP3859067A3 (en
EP3859067A2 (en
Inventor
Klaus Brandl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Karl Mayer Stoll R&D GmbH
Original Assignee
Karl Mayer Stoll R&D GmbH
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Publication date
Application filed by Karl Mayer Stoll R&D GmbH filed Critical Karl Mayer Stoll R&D GmbH
Priority to EP21178973.0A priority Critical patent/EP3859067B1/en
Priority to CN202110818614.0A priority patent/CN115467081A/en
Publication of EP3859067A2 publication Critical patent/EP3859067A2/en
Publication of EP3859067A3 publication Critical patent/EP3859067A3/en
Priority to TW111107352A priority patent/TWI805247B/en
Priority to KR1020220070993A priority patent/KR20220167246A/en
Application granted granted Critical
Publication of EP3859067B1 publication Critical patent/EP3859067B1/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/06—Needle bars; Sinker bars
    • D04B27/08—Driving devices therefor
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/10—Devices for supplying, feeding, or guiding threads to needles
    • D04B27/24—Thread guide bar assemblies
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/10—Devices for supplying, feeding, or guiding threads to needles
    • D04B27/24—Thread guide bar assemblies
    • D04B27/26—Shogging devices therefor
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/34—Take-up or draw-off devices for knitted products
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B37/00—Auxiliary apparatus or devices for use with knitting machines
    • D04B37/06—Auxiliary apparatus or devices for use with knitting machines with warp knitting machines

Definitions

  • the present invention relates to a warp knitting machine with a bar arrangement having a longitudinal direction, which is driven by a drive train, the bar arrangement being divided into at least two bar sections arranged next to one another and the drive train acting on both sections, the drive train having a number corresponding to the number of bar sections Has drive train sections, wherein the drive train sections with different phase positions having a phase difference, acting on the bar sections.
  • Such a warp knitting machine is, for example, from DE 10 2012 000 309 B4 known.
  • DE 41 29 723 A1 shows a double-head warp knitting machine in which each head has a knitting needle bar and the knitting needle bars are arranged parallel to one another.
  • the knitting needle bars are driven with different phase angles by two main shafts.
  • a warp knitting machine is used to produce warp knitted goods.
  • a sheet of threads which consists of a large number of threads arranged parallel to one another, is fed to a knitting area.
  • Knitting elements which include at least knitting needles and guide needles, work together in the knitting area.
  • the knitting needles are arranged on a knitting needle bar.
  • the guide needles are arranged on one or more guide bars. During a stitch formation process, the threads are guided around the knitting needles with the help of the guide needles.
  • the guide needles usually perform a pivoting movement transverse to the longitudinal direction. The knitting needles must be raised and lowered.
  • DE 20 2010 014 672 U1 shows a warp knitting machine with a machine frame in which a main shaft train is mounted.
  • the main shafting is driven by a drive motor, which acts on the main shafting between the two ends of the main shafting.
  • the object of the invention is to enable a high productivity of a warp knitting machine in a simple manner.
  • the bar arrangement here includes in particular the knitting needle bar, which must be raised and lowered in a stitch-forming process.
  • the individual bar sections will be raised and lowered at different times. Accordingly, those with the Movement of the knitting needle bar associated forces on the individual bar sections offset in time to each other, so that not all forces can act simultaneously in the same direction on the supporting structure of the warp knitting machine. By distributing the forces that occur over time, the overall load on the supporting structure can be reduced and a relatively high machine speed can be achieved at the same time. So you do not need different tools to manufacture the individual main shaft sections.
  • the bar arrangement preferably has two bar sections and the drive train has two drive train sections, which have a phase difference in the range from 150° to 210°, in particular in the range from 170° to 190°, to one another. In the ideal case, the phase difference is 180°.
  • the two bar sections are therefore driven in phase opposition to one another. When one section of the bar makes a rising move, the other section of the bar makes a falling move. Ideally, the resulting forces cancel each other out. Even if a complete compensation of the forces cannot be achieved, the anti-phase drive leads to a reduction in the forces that act on the supporting structure.
  • each bar section is associated with a pattern device. If the knitting needles rise and fall at different times in the individual bar sections, the guide needles (or other thread guides) must be controlled accordingly. This can easily be done by using a separate pattern setup for each bar section.
  • the pattern device of each bar section is preferably driven with a phase position corresponding to the bar section. This simplifies the control.
  • the pattern means of a bar section is driven by the drive train section associated with the bar section.
  • the corresponding phase position is thus automatically achieved.
  • the bar sections are preferably arranged next to one another in the longitudinal direction. In this way, the working width of the warp knitting machine can easily be increased, in particular doubled.
  • the bar sections are arranged one behind the other transversely to the longitudinal direction. So you arrange two needle formations back to back, so to speak. This also enables increased productivity to be achieved.
  • the drive train preferably has a main shaft which determines the phasing of each drive train section.
  • the main shaft has eccentrics, for example for individual connecting rods or multiple connecting rods. These eccentrics determine when the knitting needle bar is raised and lowered with the help of the connecting rod or rods. By aligning the eccentricity of the eccentrics, the phase position of the respective drive train section can be determined in a simple manner.
  • each main shaft section forms its own component and the components are connected to one another. This simplifies production.
  • Two main shaft sections are preferably connected to one another by a connecting device which causes the angular offset.
  • the connecting device can be designed, for example, as a shaft that is arranged between the main shaft sections.
  • the individual main shaft sections are now no longer mounted on the connecting device with the same angular orientation, but with the desired angular offset, which then defines the phase difference between the drive shaft sections.
  • a coupling between at least one main shaft section and a connecting device preferably enables a plurality of different angular positions between the main shaft section and the connecting device.
  • the coupling enables a first angular position, for example at 0°, and a second angular position at 180°. With that, the Assembly kept simple. You only have to stock a limited number of items.
  • Each bar section is preferably assigned its own yarn feed system, which is arranged between a warp beam and a knitting area.
  • the warp beam is not included in the yarn feed system here.
  • the thread feed system is also referred to simply as the "crosshair system”. This is subdivided accordingly, since it has to absorb different movements.
  • a goods take-off and/or a warp beam axis are designed together for at least two bar sections. This means that the goods take-off is designed in one piece or is only driven by one drive. The same also applies to the warp beam axis in the alternative or additional configuration. Goods take-off and/or the warp beam axis cannot therefore move completely independently of one another.
  • the bar arrangement comprises at least the knitting needle bar. If the knitting needles are designed as compound needles, the bar arrangement also includes a compound bar and possibly a pile sinker bar.
  • the warp knitting machine 1 has first foundation bars 4 and second foundation bars 5 . More guide bars can be provided.
  • the bar sections 2, 3 are driven by a drive train which in the present case has a main shaft 6 which is driven by a drive motor 7.
  • the main shaft 6 is mounted in a machine bed 8 and is lubricated by an oil supply 9 .
  • the first bar assembly 2 is connected to the mainshaft 6 via connecting rods 10-12 ( 2 ).
  • the second bar section 3 is connected to the main shaft 6 via connecting rods 13-15.
  • the main shaft 6 has a drive train section 16 for the first bar section 2 and a drive train section 17 for the second bar section 3.
  • the two drive train sections 16, 17 are in 2 shown with only part of their length.
  • Connecting rods 10-12 shown are arranged in connecting rod boxes 18.
  • four connecting rod boxes are provided for the first bar section 2 .
  • the connecting rods 13-15 are provided in connecting rod cases 19.
  • Four connecting rod boxes 19 are also provided for the second bar section 3 .
  • the first guide bars 4 are driven in a controlled manner by a first pattern device 20 .
  • the second guide bars 5 are driven in a controlled manner by a second pattern device 21 .
  • the first pattern device 20 is connected to the main shaft 6 , more precisely to the first main shaft section 16 , via a first transmission element 22 .
  • the second pattern device is connected to the second section 17 of the main shaft 6 via a second transmission element 23 .
  • the warp knitting machine 1 also has a plurality of warp beams 24-26 for the first bar section 2 and a plurality of warp beams 27-29 for the second bar section 3. Threads that are deducted from the partial warp beams 24-26 are guided through the first guide bar 4. Threads that are drawn off from the second partial warp beams 27-29 are guided through the second guide bars 5.
  • a knitted fabric formed by stitch formation with the threads drawn off from the partial warp beams 24-29 is, if necessary, relaxed by a first relaxation device 30 (for the knitted fabric produced with the aid of the first bar section 2) and by a second relaxation device 31 (for the knitted product produced with the aid of the second Bar section 3 produced knitwear) out and then wound up in a coil 32.
  • the partial warp beams 24-29 are arranged on a common warp beam axis 44.
  • the roll-up 32 is also uniform for the entire working width of the warp knitting machine 1.
  • a first crosshair system 33 is arranged between the partial warp beams 24-26 and the first bar section 2.
  • FIG. A second crosshair system 34 is arranged between the second partial warp beams 27-29 and the second bar section 3 .
  • the two reticle systems 33, 34 are designed separately from one another.
  • the connecting rods 10-12 are each mounted on the main shaft 6 on eccentrics.
  • An eccentric 35 is shown for the connecting rod 12 .
  • the eccentric has an axis of rotation 36 .
  • the connecting rod 12 is located (in the representation of 2 ) in its lowest position, also known as the "top layer”.
  • the connecting rod 15 is also mounted on an eccentric 37 which has an axis of rotation 38 .
  • the axis of rotation 38 of the second eccentric 37 coincides with the axis of rotation 36 of the first eccentric 35 . It can be seen that the connecting rod 15 in the second Main shaft section 17 is in its uppermost position. This position is also referred to as "extended position".
  • a corresponding arrangement of the eccentric is also provided for the connecting rods 10, 11 for the first main shaft section 16 and the connecting rods 13, 14 for the second main shaft section 17.
  • the eccentric 37 in the second main shaft section 17 is offset by 180° to the first eccentric 35 in the first main shaft section 16 .
  • a mainshaft member 39 is shown separate from eccentric 35.
  • This main shaft element 39 has a groove 40 which defines a "zero position”.
  • the second eccentric 37 is also connected to a main shaft element 41, which is shown separately here, the main shaft element 41 having a groove 42 which also defines a zero position.
  • the two grooves 40, 42 are offset from one another by 180° in the direction of rotation of the main shaft 6.
  • a corresponding main shaft element 39' or 41' is in turn provided at the other end of each main shaft section.
  • connection between the main shaft sections 16, 17 takes place with a connecting device 43, which is shown only schematically in 1 is shown.
  • the connecting device 43 can now be designed in such a way that its connection geometry with the main shaft sections 16, 17, ie with the main shaft elements 39', 41', allows a connection in two (or more) different angular positions.
  • the connecting device 43 can have two spring mounting positions that are offset by 180° from one another, with a spring being inserted into only one of the spring mountings in order to create a non-rotatable connection between the main shaft section 16 and the connecting device 43 or between the main shaft section 17 and the connecting device 43 to effect.
  • the pattern devices 20, 21 also act in phase opposition on the guide bars 4, 5, so that the forces acting in the longitudinal direction are at least largely compensated.
  • the exemplary embodiment shown has two bar sections 2, 3. However, it is easily possible to divide the warp knitting machine 1 into more than two sections, in which case other phase differences are then produced between the individual bar sections. For example, when using three bar sections, it may be appropriate to provide a phase difference of 120° between each bar section. In the case of four sections, a phase difference of 90° can be provided, for example.
  • the individual main shaft sections 16, 17 can be of the same design.
  • the phase offset is then brought about by the connecting device 43 .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Description

Die vorliegende Erfindung betrifft eine Kettenwirkmaschine mit einer eine Längsrichtung aufweisende Barrenanordnung, die von einem Antriebsstrang angetrieben ist, wobei die Barrenanordnung in mindestens zwei nebeneinander angeordnete Barrenabschnitte unterteilt ist und der Antriebsstrang auf beide Abschnitte wirkt, wobei der Antriebsstrang eine der Zahl der Barrenabschnitte entsprechende Anzahl von Antriebsstrang-Abschnitten aufweist, wobei die Antriebsstrang-Abschnitte mit unterschiedlichen Phasenlagen, die eine Phasendifferenz aufweisen, auf die Barrenabschnitte einwirken.The present invention relates to a warp knitting machine with a bar arrangement having a longitudinal direction, which is driven by a drive train, the bar arrangement being divided into at least two bar sections arranged next to one another and the drive train acting on both sections, the drive train having a number corresponding to the number of bar sections Has drive train sections, wherein the drive train sections with different phase positions having a phase difference, acting on the bar sections.

Eine derartige Kettenwirkmaschine ist beispielsweise aus DE 10 2012 000 309 B4 bekannt.Such a warp knitting machine is, for example, from DE 10 2012 000 309 B4 known.

DE 41 29 723 A1 zeigt eine doppelfonturige Kettenwirkmaschine, bei der jede Fontur eine Wirknadelbarre aufweist und die Wirknadelbarren parallel zueinander angeordnet sind. Die Wirknadelbarren werden mit unterschiedlichen Phasenlagen durch zwei Hauptwellen angetrieben. Eine Kettenwirkmaschine dient zur Erzeugung einer kettengewirkten Ware. Hierzu wird eine Fadenschar, die aus einer Vielzahl von parallel nebeneinander angeordneten Fäden besteht, einem Wirkbereich zugeführt. In dem Wirkbereich wirken Wirkelemente zusammen, die zumindest Wirknadeln und Legenadeln umfassen. Die Wirknadeln sind an einer Wirknadelbarre angeordnet. Die Legenadeln sind an einer oder mehreren Legebarren angeordnet. Bei einem Maschenbildungsvorgang werden die Fäden mit Hilfe der Legenadeln um die Wirknadeln herumgeführt. Die Legenadeln führen dabei üblicherweise eine Schwenkbewegung quer zur Längsrichtung aus. Die Wirknadeln müssen angehoben und abgesenkt werden. DE 41 29 723 A1 shows a double-head warp knitting machine in which each head has a knitting needle bar and the knitting needle bars are arranged parallel to one another. The knitting needle bars are driven with different phase angles by two main shafts. A warp knitting machine is used to produce warp knitted goods. For this purpose, a sheet of threads, which consists of a large number of threads arranged parallel to one another, is fed to a knitting area. Knitting elements, which include at least knitting needles and guide needles, work together in the knitting area. The knitting needles are arranged on a knitting needle bar. The guide needles are arranged on one or more guide bars. During a stitch formation process, the threads are guided around the knitting needles with the help of the guide needles. The guide needles usually perform a pivoting movement transverse to the longitudinal direction. The knitting needles must be raised and lowered.

Um mit einer derartigen Kettenwirkmaschine möglichst viel Ware zu produzieren, gibt es im Prinzip zwei Möglichkeiten. Man kann die Arbeitsbreite der Kettenwirkmaschine, also ihre Erstreckung in Längsrichtung, vergrößern oder man kann die Arbeitsgeschwindigkeit erhöhen. Die Kombination dieser beiden Maßnahmen ist jedoch nicht ohne weiteres möglich. Je breiter die Kettenwirkmaschine ist, desto größer sind die Kräfte, die zum Antreiben der Barrenanordnung erforderlich sind. Diese Kräfte müssen von der tragenden Struktur der Kettenwirkmaschine, in der Regel dem Maschinenrahmen, aufgenommen werden. Dies erfordert eine sehr aufwändige Bauweise und eine sehr komplexe Konstruktion sowie aufwändige Systeme zur Kompensation der Kräfte, Tilgung und Ähnliches.In order to produce as much fabric as possible with such a warp knitting machine, there are in principle two options. You can increase the working width of the warp knitting machine, ie its length in the longitudinal direction, or you can increase the working speed. However, the combination of these two measures is not readily possible. The wider the warp knitting machine, the greater the forces required to drive the bar assembly. These forces must be absorbed by the supporting structure of the warp knitting machine, usually the machine frame. This requires a very expensive construction and a very complex construction as well as expensive systems for compensating for the forces, eradication and the like.

DE 20 2010 014 672 U1 zeigt eine Kettenwirkmaschine mit einem Maschinenrahmen, in dem ein Hauptwellenstrang gelagert ist. Der Hauptwellenstrang wird durch einen Antriebsmotor angetrieben, der zwischen den beiden Enden des Hauptwellenstrangs am Hauptwellenstrang angreift. DE 20 2010 014 672 U1 shows a warp knitting machine with a machine frame in which a main shaft train is mounted. The main shafting is driven by a drive motor, which acts on the main shafting between the two ends of the main shafting.

Der Erfindung liegt die Aufgabe zugrunde, auf einfache Weise eine hohe Produktivität einer Kettenwirkmaschine zu ermöglichen.The object of the invention is to enable a high productivity of a warp knitting machine in a simple manner.

Diese Aufgabe wird bei einer Kettenwirkmaschine der eingangs genannten Art dadurch gelöst, dass mindestens zwei Hauptwellenabschnitte gleich ausgebildet und mit einem der Phasendifferenz entsprechenden Winkelversatz zueinander angeordnet sind.This object is achieved in a warp knitting machine of the type mentioned at the outset in that at least two main shaft sections are of identical design and are arranged with an angular offset relative to one another that corresponds to the phase difference.

Die Barrenanordnung umfasst hier insbesondere die Wirknadelbarre, die in einem Maschenbildungsvorgang angehoben und abgesenkt werden muss. Wenn man nun Antriebsstrang-Abschnitte mit unterschiedlichen Phasenlagen verwendet, dann werden die einzelnen Barrenabschnitte zu unterschiedlichen Zeiten angehoben und abgesenkt. Dementsprechend treten auch die mit der Bewegung der Wirknadelbarre verbundenen Kräfte an den einzelnen Barrenabschnitten zeitlich versetzt zueinander auf, so dass nicht alle Kräfte gleichzeitig in die gleiche Richtung auf die tragende Struktur der Kettenwirkmaschine einwirken können. Durch eine zeitliche Verteilung der auftretenden Kräfte lässt sich also die Gesamtbelastung der tragenden Struktur reduzieren und gleichzeitig auch eine relativ hohe Maschinengeschwindigkeit erreichen. Man benötigt also nicht unterschiedliche Werkzeuge, um die einzelnen Hauptwellenabschnitte zu fertigen.The bar arrangement here includes in particular the knitting needle bar, which must be raised and lowered in a stitch-forming process. Now, if you use drive train sections with different phasing, then the individual bar sections will be raised and lowered at different times. Accordingly, those with the Movement of the knitting needle bar associated forces on the individual bar sections offset in time to each other, so that not all forces can act simultaneously in the same direction on the supporting structure of the warp knitting machine. By distributing the forces that occur over time, the overall load on the supporting structure can be reduced and a relatively high machine speed can be achieved at the same time. So you do not need different tools to manufacture the individual main shaft sections.

Vorzugsweise weist die Barrenanordnung zwei Barrenabschnitte auf und der Antriebsstrang weist zwei Antriebsstrang-Abschnitte auf, die eine Phasendifferenz im Bereich von 150° bis 210°, insbesondere im Bereich von 170° bis 190°, zueinander aufweisen. Im Idealfall beträgt die Phasendifferenz 180°. Die beiden Barrenabschnitte werden also gegenphasig zueinander angetrieben. Wenn ein Barrenabschnitt eine steigende Bewegung ausführt, führt der andere Barrenabschnitt eine sinkende Bewegung aus. Die dabei entstehenden Kräfte heben sich im Idealfall gegeneinander auf. Auch wenn eine vollständige Kompensation der Kräfte nicht erreicht werden kann, führt der gegenphasige Antrieb doch zu einer Verminderung der Kräfte, die auf die tragende Struktur einwirken.The bar arrangement preferably has two bar sections and the drive train has two drive train sections, which have a phase difference in the range from 150° to 210°, in particular in the range from 170° to 190°, to one another. In the ideal case, the phase difference is 180°. The two bar sections are therefore driven in phase opposition to one another. When one section of the bar makes a rising move, the other section of the bar makes a falling move. Ideally, the resulting forces cancel each other out. Even if a complete compensation of the forces cannot be achieved, the anti-phase drive leads to a reduction in the forces that act on the supporting structure.

Vorzugsweise ist jedem Barrenabschnitt eine Mustereinrichtung zugeordnet. Wenn die Wirknadeln in den einzelnen Barrenabschnitten zu unterschiedlichen Zeiten steigen und sinken, müssen die Legenadeln (oder andere Fadenführer) entsprechend angesteuert werden. Dies ist auf einfache Weise dann möglich, wenn man für jeden Barrenabschnitt eine eigene Mustereinrichtung verwendet.Preferably, each bar section is associated with a pattern device. If the knitting needles rise and fall at different times in the individual bar sections, the guide needles (or other thread guides) must be controlled accordingly. This can easily be done by using a separate pattern setup for each bar section.

Vorzugsweise ist die Mustereinrichtung eines jeden Barrenabschnitts mit einer dem Barrenabschnitt entsprechenden Phasenlage angesteuert. Dies vereinfacht die Ansteuerung.The pattern device of each bar section is preferably driven with a phase position corresponding to the bar section. This simplifies the control.

Vorzugsweise ist die Mustereinrichtung eines Barrenabschnitts von dem dem Barrenabschnitt zugeordneten Antriebsstrang-Abschnitt angetrieben. Damit wird die entsprechende Phasenlage automatisch erreicht.Preferably, the pattern means of a bar section is driven by the drive train section associated with the bar section. The corresponding phase position is thus automatically achieved.

Bevorzugterweise sind die Barrenabschnitte in Längsrichtung nebeneinander angeordnet. Man kann dadurch die Arbeitsbreite der Kettenwirkmaschine auf einfache Weise vergrößern, insbesondere verdoppeln.The bar sections are preferably arranged next to one another in the longitudinal direction. In this way, the working width of the warp knitting machine can easily be increased, in particular doubled.

In einer Alternative dazu kann vorgesehen sein, dass die Barrenabschnitte quer zur Längsrichtung hintereinander angeordnet sind. Man ordnet also sozusagen zwei Nadelfonturen Rücken an Rücken an. Auch damit lässt sich eine erhöhte Produktivität erreichen.In an alternative to this, it can be provided that the bar sections are arranged one behind the other transversely to the longitudinal direction. So you arrange two needle formations back to back, so to speak. This also enables increased productivity to be achieved.

Bevorzugterweise weist der Antriebsstrang eine Hauptwelle auf, die die Phasenlage eines jeden Antriebsstrang-Abschnitts bestimmt. Die Hauptwelle weist beispielsweise für einzelne Pleuel oder mehrere Pleuel jeweils Exzenter auf. Diese Exzenter bestimmen, wann mit Hilfe des Pleuels oder der Pleuel die Wirknadelbarre angehoben und abgesenkt wird. Durch eine Ausrichtung der Exzentrizität der Exzenter kann man auf einfache Weise die Phasenlage des jeweiligen Antriebsstrang-Abschnitts bestimmen.The drive train preferably has a main shaft which determines the phasing of each drive train section. The main shaft has eccentrics, for example for individual connecting rods or multiple connecting rods. These eccentrics determine when the knitting needle bar is raised and lowered with the help of the connecting rod or rods. By aligning the eccentricity of the eccentrics, the phase position of the respective drive train section can be determined in a simple manner.

Hierbei ist bevorzugt, dass jeder Hauptwellenabschnitt ein eigenes Bauteil bildet und die Bauteile miteinander verbunden sind. Dies vereinfacht die Fertigung.It is preferred here that each main shaft section forms its own component and the components are connected to one another. This simplifies production.

Vorzugsweise sind zwei Hauptwellenabschnitte durch eine Verbindungseinrichtung miteinander verbunden, die den Winkelversatz bewirkt. Die Verbindungseinrichtung kann beispielsweise als Welle ausgebildet sein, die zwischen den Hauptwellenabschnitten angeordnet ist. Die einzelnen Hauptwellenabschnitte werden nun nicht mehr mit der gleichen Winkelausrichtung an der Verbindungseinrichtung montiert, sondern mit dem gewünschten Winkelversatz, der dann die Phasendifferenz zwischen den Antriebswellen-Abschnitten definiert.Two main shaft sections are preferably connected to one another by a connecting device which causes the angular offset. The connecting device can be designed, for example, as a shaft that is arranged between the main shaft sections. The individual main shaft sections are now no longer mounted on the connecting device with the same angular orientation, but with the desired angular offset, which then defines the phase difference between the drive shaft sections.

Bevorzugterweise ermöglicht eine Kupplung zwischen mindestens einem Hauptwellenabschnitt und einer Verbindungseinrichtung mehrere unterschiedliche Winkelstellungen zwischen dem Hauptwellenabschnitt und der Verbindungseinrichtung. Im einfachsten Fall ermöglicht die Kupplung eine erste Winkelstellung beispielsweise bei 0° und eine zweite Winkelstellung bei 180°. Damit wird die Montage einfach gehalten. Man muss nur eine begrenzte Anzahl von Elementen vorrätig halten.A coupling between at least one main shaft section and a connecting device preferably enables a plurality of different angular positions between the main shaft section and the connecting device. In the simplest case, the coupling enables a first angular position, for example at 0°, and a second angular position at 180°. With that, the Assembly kept simple. You only have to stock a limited number of items.

Vorzugsweise ist jedem Barrenabschnitt ein eigenes Fadenzuführsystem zugeordnet, das zwischen einem Kettbaum und einem Wirkbereich angeordnet ist. Der Kettbaum wird hier nicht zum Fadenzuführsystem gerechnet. Das Fadenzuführsystem wird auch vereinfacht als "Fadenkreuzsystem" bezeichnet. Dieses wird entsprechend unterteilt, da es unterschiedliche Bewegungen aufnehmen muss.Each bar section is preferably assigned its own yarn feed system, which is arranged between a warp beam and a knitting area. The warp beam is not included in the yarn feed system here. The thread feed system is also referred to simply as the "crosshair system". This is subdivided accordingly, since it has to absorb different movements.

Auch ist von Vorteil, dass ein Warenabzug und/oder eine Kettbaumachse jeweils für mindestens zwei Barrenabschnitte gemeinsam ausgebildet sind. Dies bedeutet, dass der Warenabzug einteilig ausgebildet oder nur von einem Antrieb angetrieben ist. Das Gleiche gilt in der alternativen oder zusätzlichen Ausgestaltung auch für die Kettbaumachse. Warenabzug und/oder Kettbaumachse können sich also nicht vollkommen unabhängig voneinander bewegen.It is also advantageous that a goods take-off and/or a warp beam axis are designed together for at least two bar sections. This means that the goods take-off is designed in one piece or is only driven by one drive. The same also applies to the warp beam axis in the alternative or additional configuration. Goods take-off and/or the warp beam axis cannot therefore move completely independently of one another.

Die Erfindung wird im Folgenden anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit einer Zeichnung beschrieben. Hierin zeigen:

Fig. 1
eine schematische Darstellung einer Kettenwirkmaschine und
Fig. 2
eine vereinfachte Darstellung eines Teils einer Hauptwelle.
The invention is described below using a preferred exemplary embodiment in conjunction with a drawing. Show in it:
1
a schematic representation of a warp knitting machine and
2
a simplified representation of part of a main shaft.

Fig. 1 zeigt in stark schematisierter Form eine Kettenwirkmaschine 1 mit einer Barrenanordnung, die mindestens zwei nebeneinander angeordnete Barrenabschnitte 2, 3 aufweist. Die Barrenanordnung umfasst zumindest die Wirknadelbarre. Wenn die Wirknadeln als Schiebernadeln ausgebildet sind, umfasst die Barrenanordnung auch eine Schieberbarre und ggfs. eine Polplatinenbarre. 1 shows in a highly schematic form a warp knitting machine 1 with a bar arrangement which has at least two bar sections 2, 3 arranged next to one another. The bar arrangement comprises at least the knitting needle bar. If the knitting needles are designed as compound needles, the bar arrangement also includes a compound bar and possibly a pile sinker bar.

Weiterhin weist die Kettenwirkmaschine 1 erste Grundlegebarren 4 und zweite Grundlegebarren 5 auf. Weitere Legebarren können vorgesehen sein. Die Barrenabschnitte 2, 3 werden von einem Antriebsstrang angetrieben, der im vorliegenden Fall eine Hauptwelle 6 aufweist, die von einem Antriebsmotor 7 angetrieben ist. Die Hauptwelle 6 ist in einem Maschinenbett 8 gelagert und ist von einem Ölvorrat 9 geschmiert.Furthermore, the warp knitting machine 1 has first foundation bars 4 and second foundation bars 5 . More guide bars can be provided. The bar sections 2, 3 are driven by a drive train which in the present case has a main shaft 6 which is driven by a drive motor 7. The main shaft 6 is mounted in a machine bed 8 and is lubricated by an oil supply 9 .

Die erste Barrenanordnung 2 steht mit der Hauptwelle 6 über Pleuel 10-12 in Verbindung (Fig. 2). Der zweite Barrenabschnitt 3 steht mit der Hauptwelle 6 über Pleuel 13-15 in Verbindung. Die Hauptwelle 6 weist für den ersten Barrenabschnitt 2 einen Antriebsstrang-Abschnitt 16 auf und für den zweiten Barrenabschnitt 3 einen Antriebsstrang-Abschnitt 17. Die beiden Antriebsstrang-Abschnitte 16, 17 sind in Fig. 2 nur mit einem Teil ihrer Länge dargestellt.The first bar assembly 2 is connected to the mainshaft 6 via connecting rods 10-12 ( 2 ). The second bar section 3 is connected to the main shaft 6 via connecting rods 13-15. The main shaft 6 has a drive train section 16 for the first bar section 2 and a drive train section 17 for the second bar section 3. The two drive train sections 16, 17 are in 2 shown with only part of their length.

Die in Fig. 2 dargestellten Pleuel 10-12 sind in Pleuelkästen 18 angeordnet. Für den ersten Barrenabschnitt 2 sind im vorliegenden Ausführungsbeispiel vier Pleuelkästen vorgesehen. Die Pleuel 13-15 sind in Pleuelkästen 19 vorgesehen. Auch für den zweiten Barrenabschnitt 3 sind vier Pleuelkästen 19 vorgesehen.In the 2 Connecting rods 10-12 shown are arranged in connecting rod boxes 18. In the present exemplary embodiment, four connecting rod boxes are provided for the first bar section 2 . The connecting rods 13-15 are provided in connecting rod cases 19. Four connecting rod boxes 19 are also provided for the second bar section 3 .

Die ersten Legebarren 4 werden von einer ersten Mustereinrichtung 20 gesteuert angetrieben. Die zweiten Legebarren 5 werden von einer zweiten Mustereinrichtung 21 gesteuert angetrieben. Die erste Mustereinrichtung 20 steht mit der Hauptwelle 6, genauer gesagt dem ersten Hauptwellenabschnitt 16, über ein erstes Übertragungselement 22 in Verbindung. Die zweite Mustereinrichtung steht mit dem zweiten Abschnitt 17 der Hauptwelle 6 über ein zweites Übertragungselement 23 in Verbindung.The first guide bars 4 are driven in a controlled manner by a first pattern device 20 . The second guide bars 5 are driven in a controlled manner by a second pattern device 21 . The first pattern device 20 is connected to the main shaft 6 , more precisely to the first main shaft section 16 , via a first transmission element 22 . The second pattern device is connected to the second section 17 of the main shaft 6 via a second transmission element 23 .

Die Kettenwirkmaschine 1 weist weiterhin mehrere Teilkettbäume 24-26 für den ersten Barrenabschnitt 2 und mehrere Teilkettbäume 27-29 für den zweiten Barrenabschnitt 3 auf. Fäden, die von den Teilkettbäumen 24-26 abgezogen werden, werden durch die erste Legebarre 4 geführt. Fäden, die von den zweiten Teilkettbäumen 27-29 abgezogen werden, werden durch die zweiten Legebarren 5 geführt.The warp knitting machine 1 also has a plurality of warp beams 24-26 for the first bar section 2 and a plurality of warp beams 27-29 for the second bar section 3. Threads that are deducted from the partial warp beams 24-26 are guided through the first guide bar 4. Threads that are drawn off from the second partial warp beams 27-29 are guided through the second guide bars 5.

Eine durch Maschenbildung mit den von den Teilkettbäumen 24-29 abgezogenen Fäden gebildete Wirkware wird, falls erforderlich, durch eine erste Relaxiereinrichtung 30 (für die mit Hilfe des ersten Barrenabschnitts 2 erzeugte Wirkware) und durch eine zweite Relaxiereinrichtung 31 (für die mit Hilfe des zweiten Barrenabschnitts 3 erzeugte Wirkware) geführt und dann in einer Aufrollung 32 aufgewickelt.A knitted fabric formed by stitch formation with the threads drawn off from the partial warp beams 24-29 is, if necessary, relaxed by a first relaxation device 30 (for the knitted fabric produced with the aid of the first bar section 2) and by a second relaxation device 31 (for the knitted product produced with the aid of the second Bar section 3 produced knitwear) out and then wound up in a coil 32.

Die Teilkettbäume 24-29 sind auf einer gemeinsamen Kettbaumachse 44 angeordnet. Auch die Aufrollung 32 ist für die gesamte Arbeitsbreite der Kettenwirkmaschine 1 einheitlich.The partial warp beams 24-29 are arranged on a common warp beam axis 44. The roll-up 32 is also uniform for the entire working width of the warp knitting machine 1.

Zwischen den Teilkettbäumen 24-26 und dem ersten Barrenabschnitt 2 ist ein erstes Fadenkreuzsystem 33 angeordnet. Zwischen den zweiten Teilkettbäumen 27-29 und dem zweiten Barrenabschnitt 3 ist ein zweites Fadenkreuzsystem 34 angeordnet. Die beiden Fadenkreuzsysteme 33, 34 sind voneinander getrennt ausgebildet.A first crosshair system 33 is arranged between the partial warp beams 24-26 and the first bar section 2. FIG. A second crosshair system 34 is arranged between the second partial warp beams 27-29 and the second bar section 3 . The two reticle systems 33, 34 are designed separately from one another.

Die Pleuel 10-12 sind auf der Hauptwelle 6 jeweils auf Exzentern gelagert. Ein Exzenter 35 ist für den Pleuel 12 dargestellt. Der Exzenter weist eine Rotationsachse 36 auf. Der Pleuel 12 befindet sich (in der Darstellung der Fig. 2) in seiner untersten Position, die auch als "Decklage" bezeichnet wird.The connecting rods 10-12 are each mounted on the main shaft 6 on eccentrics. An eccentric 35 is shown for the connecting rod 12 . The eccentric has an axis of rotation 36 . The connecting rod 12 is located (in the representation of 2 ) in its lowest position, also known as the "top layer".

Im zweiten Hauptwellenabschnitt 17 ist der Pleuel 15 ebenfalls auf einem Exzenter 37 gelagert, der eine Rotationsachse 38 aufweist. Die Rotationsachse 38 des zweiten Exzenters 37 stimmt mit der Rotationsachse 36 des ersten Exzenters 35 überein. Man kann erkennen, dass der Pleuel 15 im zweiten Hauptwellenabschnitt 17 in seiner obersten Position ist. Diese Position wird auch als "Strecklage" bezeichnet.In the second main shaft section 17 the connecting rod 15 is also mounted on an eccentric 37 which has an axis of rotation 38 . The axis of rotation 38 of the second eccentric 37 coincides with the axis of rotation 36 of the first eccentric 35 . It can be seen that the connecting rod 15 in the second Main shaft section 17 is in its uppermost position. This position is also referred to as "extended position".

Eine entsprechende Anordnung der Exzenter ist auch bei den Pleueln 10, 11 für den ersten Hauptwellenabschnitt 16 und den Pleueln 13, 14 für den zweiten Hauptwellenabschnitt 17 vorgesehen.A corresponding arrangement of the eccentric is also provided for the connecting rods 10, 11 for the first main shaft section 16 and the connecting rods 13, 14 for the second main shaft section 17.

Der Exzenter 37 im zweiten Hauptwellenabschnitt 17 ist um 180° zum ersten Exzenter 35 im ersten Hauptwellenabschnitt 16 versetzt. Wenn also die Hauptwelle gedreht wird, dann werden vereinfacht ausgedrückt die Teile des ersten Barrenabschnitts 2 angehoben, während die entsprechenden Teile des zweiten Barrenabschnitts 3 abgesenkt werden. Beim Anheben der ersten Barrenanordnung 2 muss das Maschinenbett 8 eine in Schwerkraftrichtung gerichtete Kraft aufnehmen. Beim Absenken muss das Maschinenbett eine entgegengesetzt der Schwerkraftrichtung gerichtete Kraft aufnehmen. Wenn nun die Hauptwellenabschnitte mit einer Phasendifferenz von 180° zueinander ausgerichtet sind, dann heben sich die Kräfte, die vom ersten Barrenabschnitt 2 auf das Maschinenbett 8 wirken, mit den Kräften, die vom zweiten Barrenabschnitt 3 auf das Maschinenbett 8 wirken, auf oder kompensieren sich zumindest teilweise.The eccentric 37 in the second main shaft section 17 is offset by 180° to the first eccentric 35 in the first main shaft section 16 . Thus, when the main shaft is rotated, then, to put it simply, the parts of the first bar section 2 are raised while the corresponding parts of the second bar section 3 are lowered. When the first bar arrangement 2 is raised, the machine bed 8 must absorb a force directed in the direction of gravity. When lowering, the machine bed must absorb a force that is directed opposite to the direction of gravity. If the main shaft sections are aligned with one another with a phase difference of 180°, then the forces that act on the machine bed 8 from the first bar section 2 cancel out or compensate for one another with the forces that act on the machine bed 8 from the second bar section 3 at least partially.

Um das Verständnis weiter zu erleichtern, ist ein Hauptwellenelement 39 getrennt vom Exzenter 35 dargestellt. Dieses Hauptwellenelement 39 weist eine Nut 40 auf, die eine "Nulllage" definiert. Auch der zweite Exzenter 37 ist mit einem Hauptwellenelement 41 verbunden, das hier getrennt dargestellt ist, wobei das Hauptwellenelement 41 eine Nut 42 aufweist, die ebenfalls eine Nulllage definiert. Die beiden Nuten 40, 42 sind in Drehrichtung der Hauptwelle 6 um 180° zueinander versetzt.To further facilitate understanding, a mainshaft member 39 is shown separate from eccentric 35. This main shaft element 39 has a groove 40 which defines a "zero position". The second eccentric 37 is also connected to a main shaft element 41, which is shown separately here, the main shaft element 41 having a groove 42 which also defines a zero position. The two grooves 40, 42 are offset from one another by 180° in the direction of rotation of the main shaft 6.

Am anderen Ende eines jeden Hauptwellenabschnitts ist wiederum ein entsprechendes Hauptwellenelement 39' bzw. 41' vorgesehen.A corresponding main shaft element 39' or 41' is in turn provided at the other end of each main shaft section.

Die Verbindung zwischen den Hauptwellenabschnitten 16. 17 erfolgt mit einer Verbindungseinrichtung 43, die lediglich schematisch in Fig. 1 dargestellt ist.The connection between the main shaft sections 16, 17 takes place with a connecting device 43, which is shown only schematically in 1 is shown.

Die Verbindungseinrichtung 43 kann nun so ausgebildet sein, dass ihre Verbindungsgeometrie mit den Hauptwellenabschnitten 16, 17, also mit den Hauptwellenelementen 39', 41' eine Verbindung in jeweils zwei (oder mehr) unterschiedlichen Winkelstellungen zulässt. Beispielsweise kann die Verbindungseinrichtung 43 zwei Federaufnahmepositionen aufweisen, die um 180° zueinander versetzt sind, wobei jeweils nur in eine der Federaufnahmen eine Feder eingesetzt wird, um eine drehfeste Verbindung zwischen dem Hauptwellenabschnitt 16 und der Verbindungseinrichtung 43 bzw. zwischen dem Hauptwellenabschnitt 17 und der Verbindungseinrichtung 43 zu bewirken.The connecting device 43 can now be designed in such a way that its connection geometry with the main shaft sections 16, 17, ie with the main shaft elements 39', 41', allows a connection in two (or more) different angular positions. For example, the connecting device 43 can have two spring mounting positions that are offset by 180° from one another, with a spring being inserted into only one of the spring mountings in order to create a non-rotatable connection between the main shaft section 16 and the connecting device 43 or between the main shaft section 17 and the connecting device 43 to effect.

Die Mustereinrichtungen 20, 21 wirken ebenfalls gegenphasig auf die Legebarren 4, 5, so dass auch die in Längsrichtung wirkenden Kräfte zumindest weitgehend kompensiert werden.The pattern devices 20, 21 also act in phase opposition on the guide bars 4, 5, so that the forces acting in the longitudinal direction are at least largely compensated.

Das dargestellte Ausführungsbeispiel hat zwei Barrenabschnitte 2, 3. Es ist aber ohne weiteres möglich, die Kettenwirkmaschine 1 in mehr als zwei Abschnitte zu unterteilen, wobei man dann andere Phasendifferenzen zwischen den einzelnen Barrenabschnitten erzeugt. Wenn man beispielsweise drei Barrenabschnitte verwendet, kann es zweckmäßig sein, eine Phasendifferenz von jeweils 120° zwischen den einzelnen Barrenabschnitten vorzusehen. Bei vier Abschnitten kann man beispielsweise eine Phasendifferenz von 90° vorsehen.The exemplary embodiment shown has two bar sections 2, 3. However, it is easily possible to divide the warp knitting machine 1 into more than two sections, in which case other phase differences are then produced between the individual bar sections. For example, when using three bar sections, it may be appropriate to provide a phase difference of 120° between each bar section. In the case of four sections, a phase difference of 90° can be provided, for example.

Die einzelnen Hauptwellenabschnitte 16, 17 können gleich ausgebildet sein. Der Phasenversatz wird dann durch die Verbindungseinrichtung 43 bewirkt.The individual main shaft sections 16, 17 can be of the same design. The phase offset is then brought about by the connecting device 43 .

Claims (14)

  1. Warp knitting machine (1) with a bar arrangement having a longitudinal direction, which is driven by a drive train, wherein the bar arrangement is divided into at least two bar sections (2, 3) arranged side by side and the drive train acts on both bar sections (2, 3), wherein the drive train has a number of drive train sections corresponding to the number of bar sections (2, 3), 3), wherein the drive train sections act on the bar sections (2, 3) with different phase positions having a phase difference, characterized in that at least two main shaft sections (16, 17) are of the same design and are arranged with an angular offset relative to one another corresponding to the phase difference.
  2. Warp knitting machine according to claim 1, characterized in that the bar arrangement has two bar sections (2, 3) and the drive train has two drive train sections which have a phase difference in the range from 150° to 210°, in particular in the range from 170° to 190°, with respect to one another.
  3. Warp knitting machine according to claim 1 or 2, characterized in that a pattern device (20, 21) is associated with each bar section (2, 3).
  4. Warp knitting machine according to claim 3, characterized in that the pattern device (20, 21) of each bar section (2, 3) is controlled with a phase position corresponding to the bar section (2, 3).
  5. Warp knitting machine according to claim 3 or 4, characterized in that the pattern device (20, 21) of a bar section (2, 3) is driven by the drive train section associated with the bar section (2, 3).
  6. Warp knitting machine according to one of the claims 1 to 5, characterized in that the bar sections (2, 3) are arranged side by side in longitudinal direction.
  7. Warp knitting machine according to one of the claims 1 to 5, characterized in that the bar sections (2, 3) are arranged one behind the other transversely to the longitudinal direction.
  8. Warp knitting machine according to one of the claims 1 to 7, characterized in that the drive train comprises a main shaft (6) which determines the phase position of each drive train section.
  9. Warp knitting machine according to claim 8, characterized in that the main shaft (6) comprises a plurality of main shaft sections (16, 17), the main shaft sections (16 ,17) determining the phase position of each drive train section.
  10. Warp knitting machine according to claim 9, characterized in that each main shaft section (16, 17) forms a separate component and the components are interconnected.
  11. Warp knitting machine according to any one of claims 1 to 10, characterized in that two main shaft sections (16, 17) are connected to each other by a connecting device (43) which effects the angular offset.
  12. Warp knitting machine according to claim 11, characterized in that a coupling between at least one main shaft section (16, 17) and a connecting device (43) allows several different angular positions between the main shaft section (16, 17) and the connecting device (43).
  13. Warp knitting machine according to one of the claims 1 to 12, characterized in that each bar section (2, 3) is assigned its own yarn feed system (33, 34) which is arranged between a warp beam (24-29) and a knitting area.
  14. Warp knitting machine according to one of the claims 1 to 13, characterized in that a fabric take-off (32) and/or a warp beam axis (44) are each formed jointly for at least two bar sections (2, 3).
EP21178973.0A 2021-06-11 2021-06-11 Warp knitting machine Active EP3859067B1 (en)

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EP21178973.0A EP3859067B1 (en) 2021-06-11 2021-06-11 Warp knitting machine
CN202110818614.0A CN115467081A (en) 2021-06-11 2021-07-20 Warp knitting machine
TW111107352A TWI805247B (en) 2021-06-11 2022-03-01 warp knitting machine
KR1020220070993A KR20220167246A (en) 2021-06-11 2022-06-10 warp knitting machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266411A (en) * 1979-10-15 1981-05-12 Veb Wirkmaschinenbau Karl-Marx-Stadt Method and machine for forming plush-loop warp knit fabric
DE4129723A1 (en) * 1991-09-06 1993-03-11 Liba Maschf Warp knitting machine - has hooked needle and thread guides reciprocating in same direction during lap
DE502006003709D1 (en) * 2006-01-25 2009-06-25 Groz Beckert Kg Knitting needle and barre for this
JP2008280630A (en) * 2007-05-09 2008-11-20 Yoshida Sangyo Kk Warp knitting machine
DE202010014672U1 (en) * 2010-10-23 2010-12-30 Karl Mayer China LTD., Changzhou Warp knitting machine
DE102012000309B4 (en) * 2012-01-10 2014-11-13 Karl Mayer Textilmaschinenfabrik Gmbh Knitting machine for processing at least two webs
CN103409933B (en) * 2013-08-31 2015-03-11 福建省鑫港纺织机械有限公司 Divided-structure wide-jacquard warp knitting machine
EP3363939B1 (en) * 2018-02-27 2021-04-07 KARL MAYER STOLL R&D GmbH Double bar knitting machine
CN110699844A (en) * 2019-12-03 2020-01-17 晋江市鹏太机械科技有限公司 Warp knitting machine with guide bar bed assembly driven at two sides
CN111334925A (en) * 2020-03-11 2020-06-26 卡尔迈耶研发有限公司 Main shaft driving structure for double-needle bar warp knitting machine

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CN115467081A (en) 2022-12-13
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EP3859067A2 (en) 2021-08-04
KR20220167246A (en) 2022-12-20

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