EP2811057B1 - Circular knitting machine with spreader - Google Patents

Circular knitting machine with spreader Download PDF

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Publication number
EP2811057B1
EP2811057B1 EP14168310.2A EP14168310A EP2811057B1 EP 2811057 B1 EP2811057 B1 EP 2811057B1 EP 14168310 A EP14168310 A EP 14168310A EP 2811057 B1 EP2811057 B1 EP 2811057B1
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EP
European Patent Office
Prior art keywords
circular knitting
knitting machine
central rod
bearing
machine according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
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EP14168310.2A
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German (de)
French (fr)
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EP2811057A1 (en
Inventor
Stefan Seeger
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Sipra Patententwicklungs und Beteiligungs GmbH
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Sipra Patententwicklungs und Beteiligungs GmbH
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Publication of EP2811057A1 publication Critical patent/EP2811057A1/en
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Publication of EP2811057B1 publication Critical patent/EP2811057B1/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/88—Take-up or draw-off devices for knitting products

Definitions

  • the invention relates to a circular knitting machine with a round knitting unit equipped with needles and a spreader disposed below the circular knitting unit for the fabric tube formed by the circular knitting unit, which is rotatably mounted on a central rod arranged coaxially to the machine axis.
  • the fabric tube With the spreader, the fabric tube is formed into a flat-laid, two-ply web and then removed and wound up.
  • the knit exerts considerable forces on the temple. These are transferred to the center rod, which can lead to fatigue fractures of the center rod. In addition, wrinkling and ringing of the fabric during winding may occur, which makes its further processing difficult.
  • the DE 24 43 067 describes a spreader with hinged brackets, which are connected via a damper unit with a rigid spreader frame.
  • the damper units can absorb some of the forces exerted by the knitted tube.
  • this solution is structurally complex. The damper units tire over time and must be replaced regularly.
  • the US 2,751,768 A discloses a circular knitting machine with a Kratzenabzug having two edges, which are each provided at its periphery with teeth and which perform a phase-shifted by 180 ° to each other tumbling about a central rod.
  • the present invention has for its object to provide a circular knitting machine with a spreader available that can absorb forces generated by the knitted tube in a structurally simple manner.
  • a circular knitting machine with a round knitting unit equipped with needles and a spreader disposed below the circular knitting unit for the fabric tube formed by the circular knitting unit, which is rotatably mounted on a central rod arranged coaxially to the machine axis, which is characterized in that on the center bar Spherical bearing is arranged, which allows limited pivoting movements of the temple with respect to the central rod.
  • the broad holder can deflect the forces exerted by the knit tube by pivoting movements with respect to the center bar and thereby relieve the center bar.
  • it can not come to a lateral deflection of the temple, so that the removal and winding of the web is not affected.
  • a ringing or wrinkling in the web can also be avoided by the pivoting spreader.
  • the joint bearing may be formed as a ball joint bearing, which allows a uniform movement of the temple in all spatial directions perpendicular to the direction of the longitudinal axis of the central rod.
  • a Another possibility is to form the joint stock as an elastic joint stock. This can be done by means of spring elements or other elastic coupling elements. These elastic bearing elements can also absorb forces in the direction of the central rod.
  • the spreader can also be arranged rotatably on the center rod via the joint bearing, d. H. Joint and pivot bearing for the temple are arranged in a unit in the region of the lower end of the central rod.
  • the center bar may be divided into upper and lower sections and the pivot bearing may be disposed between the upper and lower sections. The longer the lower section of the center bar is chosen, the greater the possible pivot radius of the temple and thus its ability to evade forces generated by the fabric.
  • a coupling device can be arranged with the joint bearing for connecting the sections to one another.
  • This coupling device may, for example, have a holding element and a fastening element, which are connected to one another by spacer screws.
  • the retaining element is connected to one of the sections of the central rod, for example the upper section, and the fastening element to the other section.
  • the joint bearing can be arranged on the fastener. About the distance screws also the mutual distance of the two middle bar sections can be adjusted.
  • the in Fig. 1 shown spreader 10 has two trapezoidal bracket 11, 12, which are connected to each other at its base 16 and are held by struts 13, 14 at an angle ⁇ to each other.
  • the length of the base 16 can be adjusted and thereby adapted to the diameter of the knitted tube.
  • the base 16 is connected via a bracket 17 and a pivot bearing 18 with a lower portion 20.1 of a central rod 20, which in turn on a machine frame of the not shown here Circular knitting machine is attached.
  • the center rod 20 is aligned coaxially with the central axis of the circular knitting machine.
  • the closer structure of the FIGS. 2 and 3 is apparent.
  • the spreader 10 can pivot with respect to the central axis 20 and thus dodge forces that are exerted on him by the knitted tube (not shown) produced by the circular knitting machine. Thus, these forces are not transmitted to the central rod 20.
  • the center rod 20 thus experiences by the joint bearing 22 a significant relief.
  • the generated by the spreader 10 from the fabric tube, flat, two-ply web can be removed and wound tension-free by the limited pivotability of the temple 10.
  • Fig. 2 It illustrates the construction of the coupling unit 21. It has a holding element 23 which is connected to the upper section 20.2 of the central rod and which is connected by means of spacer screws 24 to an annular fastening element 25. On the underside of the fastening element 25, the joint bearing 22 and the lower portion 20.1 of the central rod 20 are attached.
  • the joint bearing 22 is made according to Fig. 3 from a bearing shell 26 which can be screwed to the fastening element 25, a joint ball 27 and a spacer ring 28.
  • the joint ball 27 is hollow, so that the upper end of the lower center rod portion 20.1 can be passed through it.
  • the length of the lower one Center bar section 20.1 determines the pivot radius of the temple 10th
  • Fig. 4 shows a further embodiment of a joint bearing 122, which is arranged between two central rod sections 20.1 and 20.2 of the Breithalters not shown here and designed as an elastic joint.
  • the upper center bar section 20. 2 is again fastened to a holding element 23, while the lower center bar section 20. 1 is arranged on a fastening element 125.
  • the holding element 123 and the fastening element 125 are connected to one another via an elastic element 30.
  • the elastic member 30 forms the pivot bearing 122 and may for example be made of rubber, polyurethane or other plastic.
  • FIG. 5 another elastic spherical plain bearing 222 is shown. It is formed by four spring elements 31 which are arranged between a holding element 223, to which the upper center bar section 20.2 is fastened, and a fastening element for the lower center bar section 20.1.
  • the elastic member 30 and the spring elements 31 of the joint bearings 122 and 222 allow a limited pivotal movement between the center rod sections 20.1 and 20.2 and thus also a temple 10 (FIG. Fig. 1 ), which is fixed to the lower center bar section 20.1.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Knitting Machines (AREA)
  • Prostheses (AREA)

Description

Die Erfindung betrifft eine Rundstrickmaschine mit einer mit Nadeln bestückten Rundstrickeinheit und einem unterhalb der Rundstrickeinheit angeordneten Breithalter für den von der Rundstrickeinheit gebildeten Warenschlauch, der an einer koaxial zur Maschinenachse angeordneten Mittelstange drehbar gelagert ist.The invention relates to a circular knitting machine with a round knitting unit equipped with needles and a spreader disposed below the circular knitting unit for the fabric tube formed by the circular knitting unit, which is rotatably mounted on a central rod arranged coaxially to the machine axis.

Mit dem Breithalter wird der Gestrickschlauch zu einer flach gelegten, doppellagigen Warenbahn geformt und anschließend abgezogen und aufgewickelt. Das Gestrick übt dabei erhebliche Kräfte auf den Breithalter aus. Diese werden auf die Mittelstange übertragen, wodurch es zu Ermüdungsbrüchen der Mittelstange kommen kann. Außerdem kann es zu Falten- und Ringelbildung des Gestricks beim Aufwickeln kommen, was dessen weitere Verarbeitung erschwert.With the spreader, the fabric tube is formed into a flat-laid, two-ply web and then removed and wound up. The knit exerts considerable forces on the temple. These are transferred to the center rod, which can lead to fatigue fractures of the center rod. In addition, wrinkling and ringing of the fabric during winding may occur, which makes its further processing difficult.

Zur Abhilfe dieses Problems ist in der DE 12 28 021 vorgeschlagen worden, den Breithalter an Ketten an der Maschine aufzuhängen. Diese Art der Aufhängung des Breithalters kann jedoch zu einer relativ starken seitlichen Verschiebung des Breithalters durch die vom Gestrickschlauch ausgeübten Kräfte führen, was ein gleichmäßiges Abziehen und Aufwickeln der Warenbahn erschwert.To remedy this problem is in the DE 12 28 021 has been proposed to hang the spreader on chains on the machine. However, this type of suspension of the temple can cause a relatively strong lateral displacement of the temple by the fabric tube exerted forces, which makes it difficult evenly pulling and winding the web.

Die DE 24 43 067 beschreibt einen Breithalter mit gelenkig gelagerten Bügeln, die über eine Dämpfereinheit mit einem starren Breithalterrahmen verbunden sind. Die Dämpfereinheiten können einen Teil der vom Gestrickschlauch ausgeübten Kräfte aufnehmen. Allerdings ist diese Lösung konstruktiv aufwändig. Die Dämpfereinheiten ermüden im Laufe der Zeit und müssen regelmäßig ausgetauscht werden.The DE 24 43 067 describes a spreader with hinged brackets, which are connected via a damper unit with a rigid spreader frame. The damper units can absorb some of the forces exerted by the knitted tube. However, this solution is structurally complex. The damper units tire over time and must be replaced regularly.

Außerdem sind beispielsweise aus der DE 31 12 181 Breithalter bekannt, die verschiedene Verstellmöglichkeiten von einzelnen Breithalterteilen zueinander aufweisen, um vom Gestrick ausgeübte Kräfte ausgleichen zu können. Auch diese Lösungen sind konstruktiv sehr aufwändig.In addition, for example, from the DE 31 12 181 Breithalter known that have different adjustment options of individual Breithalterteilen each other to compensate for forces exerted by the fabric can. These solutions are structurally very complex.

Die US 2,751,768 A offenbart eine Rundstrickmaschine mit einem Kratzenabzug, der zwei Ränder aufweist, die an ihrem Umfang jeweils mit Zähnen versehen sind und die eine um 180° zueinander phasenverschobene Taumelbewegung um eine Mittelstange ausführen.The US 2,751,768 A discloses a circular knitting machine with a Kratzenabzug having two edges, which are each provided at its periphery with teeth and which perform a phase-shifted by 180 ° to each other tumbling about a central rod.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Rundstrickmaschine mit einem Breithalter zur Verfügung zu stellen, der auf konstruktiv einfache Weise vom Gestrickschlauch erzeugte Kräfte aufnehmen kann.The present invention has for its object to provide a circular knitting machine with a spreader available that can absorb forces generated by the knitted tube in a structurally simple manner.

Die Aufgabe wird gelöst durch eine Rundstrickmaschine mit einer mit Nadeln bestückten Rundstrickeinheit und einem unterhalb der Rundstrickeinheit angeordneten Breithalter für den von der Rundstrickeinheit gebildeten Warenschlauch, der an einer koaxial zur Maschinenachse angeordneten Mittelstange drehbar gelagert ist, die dadurch gekennzeichnet ist, dass an der Mittelstange ein Gelenklager angeordnet ist, das begrenzte Schwenkbewegungen des Breithalters bezüglich der Mittelstange ermöglicht.The object is achieved by a circular knitting machine with a round knitting unit equipped with needles and a spreader disposed below the circular knitting unit for the fabric tube formed by the circular knitting unit, which is rotatably mounted on a central rod arranged coaxially to the machine axis, which is characterized in that on the center bar Spherical bearing is arranged, which allows limited pivoting movements of the temple with respect to the central rod.

Die Unteransprüche geben vorteilhafte Ausgestaltungen der erfindungsgemäßen Rundstrickmaschine an.The dependent claims indicate advantageous embodiments of the circular knitting machine according to the invention.

Durch das Gelenklager kann der Breithalter erfindungsgemäß den durch den Gestrickschlauch ausgeübten Kräften durch Schwenkbewegungen bezüglich der Mittelstange ausweichen und dadurch die Mittelstange entlasten. Im Gegensatz zu den bekannten Kettenaufhängungen von Breithaltern kann es jedoch nicht zu einem seitlichen Ausweichen des Breithalters kommen, sodass das Abziehen und Aufwickeln der Warenbahn nicht beeinträchtigt wird. Eine Ringel- oder Faltenbildung in der Warenbahn kann durch den schwenkbaren Breithalter ebenfalls vermieden werden.By means of the spherical plain bearing, according to the invention, the broad holder can deflect the forces exerted by the knit tube by pivoting movements with respect to the center bar and thereby relieve the center bar. In contrast to the known chain suspensions of Breithaltern, however, it can not come to a lateral deflection of the temple, so that the removal and winding of the web is not affected. A ringing or wrinkling in the web can also be avoided by the pivoting spreader.

Vorzugsweise kann das Gelenklager als Kugelgelenklager ausgebildet sein, das eine gleichmäßige Bewegung des Breithalters in allen Raumrichtungen senkrecht zur Richtung der Längsachse der Mittelstange erlaubt. Eine andere Möglichkeit besteht darin, das Gelenklager als elastisches Gelenklager auszubilden. Dies kann mit Hilfe von Federelementen oder anderen elastischen Kupplungselementen erfolgen. Diese elastischen Lagerelemente können auch Kräfte in Richtung der Mittelstange aufnehmen.Preferably, the joint bearing may be formed as a ball joint bearing, which allows a uniform movement of the temple in all spatial directions perpendicular to the direction of the longitudinal axis of the central rod. A Another possibility is to form the joint stock as an elastic joint stock. This can be done by means of spring elements or other elastic coupling elements. These elastic bearing elements can also absorb forces in the direction of the central rod.

Bei einer ersten Ausgestaltung kann der Breithalter über das Gelenklager auch drehbar an der Mittelstange angeordnet sein, d. h. Gelenk- und Drehlager für den Breithalter sind in einer Einheit im Bereich des unteren Endes der Mittelstange angeordnet.In a first embodiment, the spreader can also be arranged rotatably on the center rod via the joint bearing, d. H. Joint and pivot bearing for the temple are arranged in a unit in the region of the lower end of the central rod.

Sind dagegen größere Schwenkradien des Breithalters erwünscht, so kann die Mittelstange in einen oberen und einen unteren Abschnitt aufgeteilt sein und das Gelenklager zwischen dem oberen und dem unteren Abschnitt angeordnet werden. Je länger der untere Abschnitt der Mittelstange gewählt wird, desto größer ist der mögliche Schwenkradius des Breithalters und damit seine Möglichkeit, vom Gestrick erzeugten Kräften auszuweichen.On the other hand, if larger swivel radii of the temple are desired, the center bar may be divided into upper and lower sections and the pivot bearing may be disposed between the upper and lower sections. The longer the lower section of the center bar is chosen, the greater the possible pivot radius of the temple and thus its ability to evade forces generated by the fabric.

Zwischen den beiden Mittelstangenabschnitten kann eine Kopplungseinrichtung mit dem Gelenklager zur Verbindung der Abschnitte miteinander angeordnet sein. Diese Kopplungseinrichtung kann beispielsweise ein Halteelement und ein Befestigungselement aufweisen, die durch Abstandsschrauben miteinander verbunden sind. Das Halteelement ist dabei mit einem der Abschnitte der Mittelstange, beispielsweise dem oberen Abschnitt verbunden und das Befestigungselement mit dem anderen Abschnitt. Das Gelenklager kann dabei am Befestigungselement angeordnet sein. Über die Abstandsschrauben kann außerdem der gegenseitige Abstand der beiden Mittelstangenabschnitte justiert werden.Between the two middle rod sections, a coupling device can be arranged with the joint bearing for connecting the sections to one another. This coupling device may, for example, have a holding element and a fastening element, which are connected to one another by spacer screws. The retaining element is connected to one of the sections of the central rod, for example the upper section, and the fastening element to the other section. The joint bearing can be arranged on the fastener. About the distance screws also the mutual distance of the two middle bar sections can be adjusted.

Nachfolgend wird ein Ausführungsbeispiel eines Breithalters einer erfindungsgemäßen Rundstrickmaschine anhand der Zeichnung näher beschrieben.An exemplary embodiment of a wide holder of a circular knitting machine according to the invention will be described in more detail below with reference to the drawing.

Dabei zeigen:

Fig. 1
eine perspektivische Ansicht eines Breithalters mit geteilter Mittelstange;
Fig. 2
eine vergrößerte Detailansicht des Verbindungsbereichs der Mittelstangenabschnitte des Breithalters aus Fig. 1;
Fig. 3
eine Explosionszeichnung eines Gelenklagers an der Mittelstange des Breithalters aus Fig. 1;
Fig. 4
eine perspektivische Ansicht eines zweiten Verbindungsbereichs der Mittelstangenabschnitte eines Breithalters;
Fig. 5
eine perspektivische Ansicht eines dritten Verbindungsbereichs der Mittelstangenabschnitte eines Breithalters.
Showing:
Fig. 1
a perspective view of a Breithalters with divided center rod;
Fig. 2
an enlarged detail view of the connecting portion of the center bar sections of the temple Fig. 1 ;
Fig. 3
an exploded view of a hinge bearing on the central rod of the temple Fig. 1 ;
Fig. 4
a perspective view of a second connecting portion of the center bar sections of a broader;
Fig. 5
a perspective view of a third connecting portion of the center bar portions of a temple.

Der in Fig. 1 gezeigte Breithalter 10 weist zwei trapezförmige Bügel 11, 12 auf, die an ihrer Basis 16 miteinander verbunden sind und durch Streben 13, 14 in einem Winkel α zueinander gehalten sind. Die Länge der Basis 16 kann verstellt und dadurch dem Durchmesser des Gestrickschlauchs angepasst werden.The in Fig. 1 shown spreader 10 has two trapezoidal bracket 11, 12, which are connected to each other at its base 16 and are held by struts 13, 14 at an angle α to each other. The length of the base 16 can be adjusted and thereby adapted to the diameter of the knitted tube.

Die Basis 16 ist über einen Bügel 17 und ein Drehlager 18 mit einem unteren Abschnitt 20.1 einer Mittelstange 20 verbunden, die ihrerseits an einem Maschinenrahmen der hier nicht näher dargestellten Rundstrickmaschine befestigt ist. Die Mittelstange 20 ist dabei koaxial zur Mittelachse der Rundstrickmaschine ausgerichtet.The base 16 is connected via a bracket 17 and a pivot bearing 18 with a lower portion 20.1 of a central rod 20, which in turn on a machine frame of the not shown here Circular knitting machine is attached. The center rod 20 is aligned coaxially with the central axis of the circular knitting machine.

Zwischen dem unteren Abschnitt 20.1 der Mittelstange 20 und einem oberen Abschnitt 20.2 der Mittelstange 20 sind eine Kopplungseinheit 21 und ein Gelenklager 22 angeordnet, deren näherer Aufbau aus den Fig. 2 und 3 ersichtlich ist. Durch das Gelenklager 22 kann der Breithalter 10 bezüglich der Mittelachse 20 verschwenken und somit Kräften ausweichen, die durch den durch die Rundstrickmaschine erzeugten Gestrickschlauch (nicht dargestellt) auf ihn ausgeübt werden. Damit werden diese Kräfte nicht auf die Mittelstange 20 übertragen. Die Mittelstange 20 erfährt somit durch das Gelenklager 22 eine deutliche Entlastung. Außerdem kann die durch den Breithalter 10 aus dem Gestrickschlauch erzeugte, flache, doppellagige Warenbahn durch die begrenzte Verschwenkbarkeit des Breithalters 10 spannungsfrei abgezogen und aufgewickelt werden.Between the lower portion 20.1 of the central rod 20 and an upper portion 20.2 of the central rod 20, a coupling unit 21 and a spherical bearing 22 are arranged, the closer structure of the FIGS. 2 and 3 is apparent. By the joint bearing 22, the spreader 10 can pivot with respect to the central axis 20 and thus dodge forces that are exerted on him by the knitted tube (not shown) produced by the circular knitting machine. Thus, these forces are not transmitted to the central rod 20. The center rod 20 thus experiences by the joint bearing 22 a significant relief. In addition, the generated by the spreader 10 from the fabric tube, flat, two-ply web can be removed and wound tension-free by the limited pivotability of the temple 10.

Fig. 2 verdeutlicht den Aufbau der Kopplungseinheit 21. Sie weist ein mit dem oberen Abschnitt 20.2 der Mittelstange verbundenes Halteelement 23 auf, das mittels Abstandschrauben 24 mit einem ringförmigen Befestigungselement 25 verbunden ist. Auf der Unterseite des Befestigungselements 25 sind das Gelenklager 22 sowie der untere Abschnitt 20.1 der Mittelstange 20 befestigt. Fig. 2 It illustrates the construction of the coupling unit 21. It has a holding element 23 which is connected to the upper section 20.2 of the central rod and which is connected by means of spacer screws 24 to an annular fastening element 25. On the underside of the fastening element 25, the joint bearing 22 and the lower portion 20.1 of the central rod 20 are attached.

Das Gelenklager 22 besteht gemäß Fig. 3 aus einer Lagerschale 26, die mit dem Befestigungselement 25 verschraubbar ist, einer Gelenkkugel 27 und einem Distanzring 28. Die Gelenkkugel 27 ist hohl ausgeführt, sodass das obere Ende des unteren Mittelstangenabschnitts 20.1 durch sie hindurchgeführt werden kann. Die Länge des unteren Mittelstangenabschnitts 20.1 bestimmt den Schwenkradius des Breithalters 10.The joint bearing 22 is made according to Fig. 3 from a bearing shell 26 which can be screwed to the fastening element 25, a joint ball 27 and a spacer ring 28. The joint ball 27 is hollow, so that the upper end of the lower center rod portion 20.1 can be passed through it. The length of the lower one Center bar section 20.1 determines the pivot radius of the temple 10th

Fig. 4 zeigt eine weitere Ausführungsform eines Gelenklagers 122, das zwischen zwei Mittelstangenabschnitten 20.1 und 20.2 des hier nicht näher dargestellten Breithalters angeordnet und als elastisches Gelenk ausgeführt ist. Der obere Mittelstangenabschnitt 20.2 ist wieder an einem Halteelement 23 befestigt, während der untere Mittelstangenabschnitt 20.1 an einem Befestigungselement 125 angeordnet ist. Das Halteelement 123 und das Befestigungselement 125 sind über ein elastisches Element 30 miteinander verbunden. Das elastische Element 30 bildet das Gelenklager 122 und kann beispielsweise aus Gummi, Polyurethan oder einem anderen Kunststoff bestehen. Fig. 4 shows a further embodiment of a joint bearing 122, which is arranged between two central rod sections 20.1 and 20.2 of the Breithalters not shown here and designed as an elastic joint. The upper center bar section 20. 2 is again fastened to a holding element 23, while the lower center bar section 20. 1 is arranged on a fastening element 125. The holding element 123 and the fastening element 125 are connected to one another via an elastic element 30. The elastic member 30 forms the pivot bearing 122 and may for example be made of rubber, polyurethane or other plastic.

In Fig. 5 ist ein weiteres elastisches Gelenklager 222 dargestellt. Es wird von vier Federelementen 31 gebildet, die zwischen einem Halteelement 223, an dem der obere Mittelstangenabschnitt 20.2 befestigt ist, und einem Befestigungselement für den unteren Mittelstangenabschnitt 20.1 angeordnet sind.In Fig. 5 another elastic spherical plain bearing 222 is shown. It is formed by four spring elements 31 which are arranged between a holding element 223, to which the upper center bar section 20.2 is fastened, and a fastening element for the lower center bar section 20.1.

Auch das elastische Element 30 und die Federelemente 31 der Gelenklager 122 und 222 erlauben eine begrenzte Schwenkbewegung zwischen den Mittelstangenabschnitten 20.1 und 20.2 und damit auch eines Breithalters 10 (Fig. 1), der am unteren Mittelstangenabschnitt 20.1 befestigt ist.Also, the elastic member 30 and the spring elements 31 of the joint bearings 122 and 222 allow a limited pivotal movement between the center rod sections 20.1 and 20.2 and thus also a temple 10 (FIG. Fig. 1 ), which is fixed to the lower center bar section 20.1.

Claims (8)

  1. Circular knitting machine with a circular knitting unit fitted with needles and an expander (10) arranged under the circular knitting unit for a tubular knit, which is formed by the circular knitting unit and is rotatably mounted on a central rod (20) arranged coaxially to the machine axis, characterised in that a pivoting bearing (22) is arranged on the central rod (20), that bearing allowing limited swivel movements of the expander (10) relative to the central rod (20) in such a manner that the expander (10) can evade the forces caused by the tubular knit by swivel movements relative to the central rod (20) and thereby release pressure from the central rod (20).
  2. Circular knitting machine according to claim 1, characterised in that the pivoting bearing (22) is a ball bearing.
  3. Circular knitting machine according to claim 1, characterised in that the pivoting bearing is an elastic pivoting bearing.
  4. Circular knitting machine according to one of claims 1 to 3, characterised in that the expander (10) is rotatably mounted on the central rod (20) by means of the pivoting bearing (22).
  5. Circular knitting machine according to one of claims 1 to 3, characterised in that the central rod (20) is divided into an upper and a lower section (20.2, 20.1) and the pivoting bearing (22) is arranged between the upper and the lower section (20.2, 20.1).
  6. Circular knitting machine according to claim 5, characterised in that a coupling arrangement (21) with the pivoting bearing is arranged between the two central rod sections (20.1, 20.2).
  7. Circular knitting machine according to claim 6, characterised in that the coupling arrangement (21) has a holding element (23) and a fastening element (25), which are connected to one another by spacer screws (24).
  8. Circular knitting machine according to claim 7, characterised in that the pivoting bearing (22) is arranged on the fastening element (25).
EP14168310.2A 2013-06-07 2014-05-14 Circular knitting machine with spreader Not-in-force EP2811057B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013105941.4A DE102013105941A1 (en) 2013-06-07 2013-06-07 Circular knitting machine with spreader

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EP2811057A1 EP2811057A1 (en) 2014-12-10
EP2811057B1 true EP2811057B1 (en) 2016-11-02

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US (1) US9347156B2 (en)
EP (1) EP2811057B1 (en)
JP (1) JP2014237916A (en)
CN (1) CN104233617B (en)
DE (1) DE102013105941A1 (en)
TW (1) TWI612194B (en)

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DE102013105941A1 (en) * 2013-06-07 2014-12-11 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Circular knitting machine with spreader
KR101969068B1 (en) * 2018-02-13 2019-04-15 (주)유영산업 Guide device for slitter
CN108589007B (en) * 2018-05-04 2019-09-13 石狮市振富针纺机械有限公司 A kind of knitting circular knitting machine support cloth apparatus

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US9347156B2 (en) 2016-05-24
US20140360231A1 (en) 2014-12-11
DE102013105941A1 (en) 2014-12-11
CN104233617A (en) 2014-12-24
TWI612194B (en) 2018-01-21
EP2811057A1 (en) 2014-12-10
JP2014237916A (en) 2014-12-18
CN104233617B (en) 2018-05-08
TW201510310A (en) 2015-03-16

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