EP3530790B1 - Slider needle - Google Patents

Slider needle Download PDF

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Publication number
EP3530790B1
EP3530790B1 EP18158283.4A EP18158283A EP3530790B1 EP 3530790 B1 EP3530790 B1 EP 3530790B1 EP 18158283 A EP18158283 A EP 18158283A EP 3530790 B1 EP3530790 B1 EP 3530790B1
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EP
European Patent Office
Prior art keywords
flank
guide rail
area
shaft
guide
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EP18158283.4A
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German (de)
French (fr)
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EP3530790A1 (en
Inventor
Klaus Brandl
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Karl Mayer Stoll R&D GmbH
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Karl Mayer R&D GmbH
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Priority to EP18158283.4A priority Critical patent/EP3530790B1/en
Priority to CN201810600104.4A priority patent/CN110184736B/en
Publication of EP3530790A1 publication Critical patent/EP3530790A1/en
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Publication of EP3530790B1 publication Critical patent/EP3530790B1/en
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    • 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
    • D04B35/06—Sliding-tongue needles

Definitions

  • the present invention relates to a compound needle with a shaft which has a longitudinal direction, a hook area which has a catching space which is partially delimited by a hook, and a guide area for a slide, the shaft having a cross section which is larger than a cross section of the hook area and a transition area is arranged between the hook area and the shaft, which is asymmetrical.
  • Such a compound needle is for example off DE 31 43 743 A1 known.
  • the shaft merges into the hook area with a slightly angled transition area.
  • the transition area has a thickness which increases uniformly from the hook area to the shaft.
  • Such a compound needle is used in a warp knitting machine, in particular in the field of automatic warp knitting machines and Raschel machines, as a so-called work needle.
  • the knitting machine is equipped with compound needles and slides, each compound needle being assigned a slide that can be moved in the guide area.
  • the mesh that is newly formed in the trap must slide out of the trap over the transition area onto the shaft.
  • the mesh is widened considerably. The widening can be done up to twice or three times the mesh size. The widening is practically unavoidable because the guide area for the slide requires a correspondingly large cross section of the shaft.
  • the widening of the mesh has the consequence that the warp knitting machine has to exert great forces in order to push the compound needle against the knitting blank or the stitch comb as an abutment through the stitch and to widen the mesh against the thread tension.
  • the invention is based on the object of keeping the load on the warp knitting machine small during loop formation.
  • the cross-section in the transition area between the hook area and the shaft is enlarged in several sections, i.e. distributed over a greater length based on the longitudinal direction of the shaft and in different directions of the mesh at different times, so that the Widening the mesh requires less force.
  • the two planes preferably intersect at a right angle. This results in at least four different points of attack with which the transition area attacks the "inside" of the mesh with a time offset in order to widen it.
  • the transition area does not have any symmetries.
  • the mesh is acted upon in order to expand it, at the same time only in a relatively narrowly delimited circumferential area or in a few circumferential areas of the mesh.
  • the transition area preferably has a first flank on one side and a second flank on its opposite side, the first flank and the second flank having different starting positions and / or gradients with respect to the longitudinal axis of the shaft.
  • the flanks are on both sides of the trap area or, if you look at the compound needle from the side of the hook, to the left and right of the trap area.
  • the mesh is thus widened first to the left and then to the right or vice versa. This keeps the forces necessary to widen the mesh small.
  • the starting position of the second flank is arranged in the area of an end position of the first flank.
  • An exact correspondence between the starting position of the second flank and the end position of the first flank is not required.
  • the two flanks can overlap by about 15% to 20% of their length. The widening of the mesh in one direction is then practical completed when the mesh begins to widen in an opposite direction.
  • the guide region has a first guide rail and a second guide rail and the guide rails have different courses in the transition region.
  • the guide rails also guide the slide when the warp knitting machine is in operation.
  • the height of the rail decreases so that the trap area can remain open. This decrease or, in the opposite direction, the increase in height now has a different course for the guide rails, so that the mesh can be widened first through one guide rail and then, if necessary, through the other guide rail.
  • the first guide rail has a different starting position than the second guide rail. In this way, the loop is first widened by the first guide rail and then, optionally additionally, by the second guide rail.
  • first guide rail has a different slope and / or curvature than the second guide rail. This also allows the mesh to widen at different points of attack.
  • the first guide rail preferably has a starting position which corresponds to an end position of the first flank. The widening of the on the first guide rail then immediately follows the widening of the mesh on the first flank.
  • the second guide rail has an initial position which corresponds to an end position of the second flank.
  • the widening of the mesh on the second guide rail then directly follows the widening of the mesh on the second flank.
  • Fig. 1 shows a compound needle 1, wherein Fig. 1a a side view and Figure 1b shows a front view.
  • the compound needle 1 has a shaft 2 which has a longitudinal direction.
  • the compound needle 1 also has a hook area 3 which has a catching space 4 which is partly delimited by a hook 5.
  • a slide is usually used which is guided in a guide area 6.
  • the slide is not shown here for reasons of clarity.
  • the guide area 6 has a first guide rail 7 and a second guide rail 8, between which the slide is guided.
  • a transition area 9 is provided between the hook area 3 and the shaft 2, in which the cross section of the compound needle 1 increases from the cross section of the hook area 3 to the cross section of the shaft 2.
  • the cross section here lies in a cutting plane which is directed perpendicular to the longitudinal direction.
  • the longitudinal direction runs from one end 10 of the compound needle to the closed end of the trap chamber 4.
  • the transition area 9 is asymmetrical. How to look at the Figures 1a and 1b As can be seen, the transition region 9 is designed asymmetrically in relation to at least two planes which run through the longitudinal axis of the shaft 2. In a particularly preferred embodiment, the transition area has no symmetries at all.
  • the transition area 9 has a first flank 11 on one side and a second flank 12 on its opposite side in a part which is usually referred to as the “conical area”.
  • the first flank 11 is formed on the right side of the compound needle and the second flank 12 is formed on the left side of the compound needle 1 when looking at the compound needle 1 from the side of the hook 5.
  • a front side 13 is accordingly arranged on the side of the hook 5 of the compound needle 1, with a rear side 14 being located opposite.
  • the guide area 6 is arranged in the front side 13.
  • the first flank 11 has a starting position 15 and the second flank 12 has a starting position 16.
  • One can in Figure 1b It is easy to see that the first flank 11 and the second flank 12 have different starting positions 15, 16 in relation to the longitudinal axis of the shaft 2.
  • first flank 11 and the second flank 12 have different gradients with respect to the longitudinal axis of the shaft.
  • the first guide rail 7 has a first starting position 17 and the second guide rail 8 has a second starting position 18.
  • the first guide rail 7 directly adjoins the first flank 11.
  • an end position of the first flank 11 corresponds to the starting position 17 of the first rail 7.
  • the second rail 8 directly adjoins the second flank 12.
  • the starting position 18 of the second rail 8 corresponds to the end position of the second flank 12.
  • Fig. 2 shows a modified form of the compound needle, which essentially corresponds to the embodiment Fig. 1 corresponds.
  • the overlap between the first flank 11 and the second flank 12 is smaller, so that an end position 19 of the first flank 11 is arranged in the area of the starting position 16 of the second flank 12.
  • the two positions 16, 19 do not have to match exactly.
  • An overlap of the two flanks 11, 12 by 15% to 20% of their length is entirely permissible.

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

Description

Die vorliegende Erfindung betrifft eine Schiebernadel mit einem Schaft, der eine Längsrichtung aufweist, einem Hakenbereich, der einen Fangraum aufweist, der zum Teil durch einen Haken begrenzt ist, und einem Führungsbereich für einen Schieber, wobei der Schaft einen Querschnitt aufweist, der größer ist als ein Querschnitt des Hakenbereichs und zwischen dem Hakenbereich und dem Schaft ein Übergangsbereich angeordnet ist, der asymmetrisch ausgebildet ist.The present invention relates to a compound needle with a shaft which has a longitudinal direction, a hook area which has a catching space which is partially delimited by a hook, and a guide area for a slide, the shaft having a cross section which is larger than a cross section of the hook area and a transition area is arranged between the hook area and the shaft, which is asymmetrical.

Eine derartige Schiebernadel ist beispielsweise aus DE 31 43 743 A1 bekannt. Der Schaft geht mit einem geringfügig abgewinkelten Übergangsbereich in den Hakenbereich über. Der Übergangsbereich weist eine Dicke auf, die vom Hakenbereich zum Schaft gleichförmig zunimmt.Such a compound needle is for example off DE 31 43 743 A1 known. The shaft merges into the hook area with a slightly angled transition area. The transition area has a thickness which increases uniformly from the hook area to the shaft.

Eine derartige Schiebernadel wird in einer Kettenwirkmaschine, insbesondere im Bereich der Kettenwirkautomaten und Raschelmaschinen, als sogenannte Arbeitsnadel verwendet.Such a compound needle is used in a warp knitting machine, in particular in the field of automatic warp knitting machines and Raschel machines, as a so-called work needle.

Hierzu ist die Wirkmaschine mit Schiebernadeln und Schiebern ausgestattet, wobei jeder Schiebernadel ein Schieber zugeordnet ist, der in dem Führungsbereich bewegbar ist.For this purpose, the knitting machine is equipped with compound needles and slides, each compound needle being assigned a slide that can be moved in the guide area.

Beim Herstellen einer Wirkware werden nacheinander Maschenreihen gebildet. Wenn eine Maschenreihe fertig gestellt worden ist, befinden sich die Maschen im Fangraum. Die Schiebernadel muss dann steigen, um für die Masche der nächsten Maschenreihe wieder verfügbar zu sein. Führungselemente, die an Legebarren angeordnet sind, führen dann Fäden in der gewünschten Musterung um die jeweiligen Schiebernadeln. Der Fangraum wird dann durch die Schieber geschlossen und die Schiebernadel bewegt sich durch die Masche der zuvor gebildeten Maschenreihe wieder nach unten.When producing a knitted fabric, rows of stitches are formed one after the other. When a row of stitches has been completed, the stitches are in the trap area. The compound needle must then rise in order to be available again for the stitch of the next stitch row. Guide elements, which are arranged on guide bars, then guide threads in the desired pattern around the respective compound needles. The trap is then closed by the slide and the compound needle moves back down through the mesh of the previously formed row of stitches.

Beim Steigen der Schiebernadel muss die Masche, die sich neu gebildet im Fangraum befindet, aus dem Fangraum über den Übergangsbereich auf den Schaft gleiten. Dabei wird die Masche stark geweitet. Die Weitung kann bis zum Doppelten oder Dreifachen der Maschengröße erfolgen. Die Weitung lässt sich praktisch nicht vermeiden, weil der Führungsbereich für den Schieber einen entsprechend großen Querschnitt des Schaftes erfordert.When the compound needle rises, the mesh that is newly formed in the trap must slide out of the trap over the transition area onto the shaft. The mesh is widened considerably. The widening can be done up to twice or three times the mesh size. The widening is practically unavoidable because the guide area for the slide requires a correspondingly large cross section of the shaft.

Die Weitung der Masche hat zur Folge, dass die Kettenwirkmaschine große Kräfte aufbringen muss, um die Schiebernadel gegen die Wirkplatine bzw. den Stechkamm als Widerlager durch die Masche zu stoßen und die Maschen gegen die Fadenspannung zu weiten.The widening of the mesh has the consequence that the warp knitting machine has to exert great forces in order to push the compound needle against the knitting blank or the stitch comb as an abutment through the stitch and to widen the mesh against the thread tension.

Der Erfindung liegt die Aufgabe zu Grunde, die Belastung der Kettenwirkmaschine bei der Maschenbildung klein zu halten.The invention is based on the object of keeping the load on the warp knitting machine small during loop formation.

Diese Aufgabe wird mit einer Schiebernadel der eingangsgenannten Art dadurch gelöst, dass der Übergangsbereich in Bezug auf mindestens zwei Ebenen, die durch die Längsachse des Schaftes verlaufen, asymmetrisch ausgebildet ist.This object is achieved with a compound needle of the type mentioned in that the transition area in relation to at least two Planes that run through the longitudinal axis of the shaft, is asymmetrical.

Bei einer asymmetrischen Ausbildung erfolgt die Vergrößerung des Querschnitts im Übergangsbereich zwischen dem Hakenbereich und dem Schaft in mehreren Abschnitten, also zum einen verteilt über eine größere Länge bezogen auf die Längsrichtung des Schafts und zum anderen in verschiedene Richtungen der Masche zu unterschiedlichen Zeitpunkten, so dass die Aufweitung der Masche eine geringere Kraft erfordert.In the case of an asymmetrical design, the cross-section in the transition area between the hook area and the shaft is enlarged in several sections, i.e. distributed over a greater length based on the longitudinal direction of the shaft and in different directions of the mesh at different times, so that the Widening the mesh requires less force.

Die zwei Ebenen schneiden sich vorzugsweise unter einem rechten Winkel. Damit ergeben sich mindestens vier unterschiedliche Angriffspunkte, mit denen der Übergangsbereich an der "Innenseite" der Masche zeitlich versetzt angreift, um sie auf zu weiten.The two planes preferably intersect at a right angle. This results in at least four different points of attack with which the transition area attacks the "inside" of the mesh with a time offset in order to widen it.

Es ist bevorzugt, dass der Übergangsbereich keine Symmetrien aufweist. Damit erfolgt in jedem Fall eine Beaufschlagung der Masche, um sie aufzuweiten, zeitgleich immer nur an einem relativ eng begrenzten Umfangsbereich oder an wenigen Umfangsbereichen der Masche.It is preferred that the transition area does not have any symmetries. In any case, the mesh is acted upon in order to expand it, at the same time only in a relatively narrowly delimited circumferential area or in a few circumferential areas of the mesh.

Bevorzugter Weise weist der Übergangsbereich eine erste Flanke auf einer Seite und eine zweite Flanke auf seiner gegenüberliegenden Seite auf, wobei die erste Flanke und die zweite Flanke unterschiedliche Anfangspositionen und/oder Steigungen in Bezug auf die Längsachse des Schaftes aufweisen. Die Flanken liegen dabei beidseits des Fangraumes oder, wenn man von der Seite des Hakens auf die Schiebernadel blickt, links und rechts des Fangraums. Damit erfolgt die Aufweitung der Masche zunächst nach links und dann nach rechts oder umgekehrt. Dies hält die zum Aufweiten der Masche notwendigen Kräfte klein.The transition area preferably has a first flank on one side and a second flank on its opposite side, the first flank and the second flank having different starting positions and / or gradients with respect to the longitudinal axis of the shaft. The flanks are on both sides of the trap area or, if you look at the compound needle from the side of the hook, to the left and right of the trap area. The mesh is thus widened first to the left and then to the right or vice versa. This keeps the forces necessary to widen the mesh small.

Auch ist von Vorteil, wenn die Anfangsposition der zweiten Flanke im Bereich einer Endposition der ersten Flanke angeordnet ist. Eine exakte Übereinstimmung der Anfangsposition der zweiten Flanke mit der Endposition der ersten Flanke ist nicht erforderlich. Die beiden Flanken können sich durchaus um etwa 15 % bis 20 % ihrer Länge überschneiden. Die Aufweitung der Masche in eine Richtung ist dann praktisch abgeschlossen, wenn die Aufweitung der Masche in eine gegenüberliegende Richtung beginnt.It is also advantageous if the starting position of the second flank is arranged in the area of an end position of the first flank. An exact correspondence between the starting position of the second flank and the end position of the first flank is not required. The two flanks can overlap by about 15% to 20% of their length. The widening of the mesh in one direction is then practical completed when the mesh begins to widen in an opposite direction.

In einer vorteilhaften Ausgestaltung ist vorgesehen, dass der Führungsbereich eine erste Führungsschiene und eine zweite Führungsschiene aufweist und die Führungsschienen im Übergangsbereich unterschiedliche Verläufe aufweisen. Die Führungsschienen führen im Übrigen den Schieber im Betrieb der Kettenwirkmaschine. Im Übergangsbereich nimmt die Höhe der Schiene ab, damit der Fangraum offen bleiben kann. Diese Abnahme oder in umgekehrter Richtung die Vergrößerung der Höhe hat nun für die Führungsschienen jeweils einen unterschiedlichen Verlauf, so dass die Masche zunächst durch die eine Führungsschiene und dann, gegebenenfalls auch, durch die andere Führungsschiene aufgeweitet werden kann.In an advantageous embodiment it is provided that the guide region has a first guide rail and a second guide rail and the guide rails have different courses in the transition region. The guide rails also guide the slide when the warp knitting machine is in operation. In the transition area the height of the rail decreases so that the trap area can remain open. This decrease or, in the opposite direction, the increase in height now has a different course for the guide rails, so that the mesh can be widened first through one guide rail and then, if necessary, through the other guide rail.

Hierbei ist bevorzugt, dass die erste Führungsschiene eine andere Anfangsposition als die zweite Führungsschiene aufweist. Damit wird die Masche zunächst durch die erste Führungsschiene geweitet und dann, gegebenenfalls zusätzlich, durch die zweite Führungsschiene.It is preferred here that the first guide rail has a different starting position than the second guide rail. In this way, the loop is first widened by the first guide rail and then, optionally additionally, by the second guide rail.

Auch ist von Vorteil, wenn die erste Führungsschiene eine andere Steigung und/oder Krümmung als die zweite Führungsschiene aufweist. Auch dadurch lässt sich die Aufweitung der Masche an unterschiedlichen Angriffspunkten bewirken.It is also advantageous if the first guide rail has a different slope and / or curvature than the second guide rail. This also allows the mesh to widen at different points of attack.

Vorzugsweise weist die erste Führungsschiene eine Anfangsposition auf, die einer Endposition der ersten Flanke entspricht. Die Aufweitung der an der ersten Führungsschiene schließt sich dann unmittelbar an die Aufweitung der Masche an der ersten Flanke an.The first guide rail preferably has a starting position which corresponds to an end position of the first flank. The widening of the on the first guide rail then immediately follows the widening of the mesh on the first flank.

In entsprechender Weise kann vorgesehen sein, dass die zweite Führungsschiene eine Anfangsposition aufweist, die einer Endposition der zweiten Flanke entspricht. Auch hier schließt sich dann die Aufweitung der Masche an der zweiten Führungsschiene unmittelbar an die Aufweitung der Masche an der zweiten Flanke an.In a corresponding manner, it can be provided that the second guide rail has an initial position which corresponds to an end position of the second flank. Here, too, the widening of the mesh on the second guide rail then directly follows the widening of the mesh on the second flank.

Die Erfindung wird im Folgenden anhand von bevorzugten Ausführungsbeispielen in Verbindung mit der Zeichnung beschrieben. Hierin zeigen:

Fig. 1
eine erste Ausgestaltung einer Schiebernadel und
Fig. 2
eine zweite Ausgestaltung einer Schiebernadel.
The invention is described below on the basis of preferred exemplary embodiments in conjunction with the drawing. Show here:
Fig. 1
a first embodiment of a compound needle and
Fig. 2
a second embodiment of a compound needle.

In allen Figuren sind gleiche und einander entsprechende Elemente mit den gleichen Bezugszeichen versehen.In all figures, the same and corresponding elements are provided with the same reference symbols.

Fig. 1 zeigt eine Schiebernadel 1, wobei Fig. 1a eine Seitenansicht und Fig. 1b eine Vorderansicht zeigt. Fig. 1 shows a compound needle 1, wherein Fig. 1a a side view and Figure 1b shows a front view.

Die Schiebernadel 1 weist einen Schaft 2 auf, der eine Längsrichtung aufweist. Ferner weist die Schiebernadel 1 einen Hakenbereich 3 auf, der einen Fangraum 4 aufweist, der zum Teil durch einen Haken 5 begrenzt ist. Um bei einem Maschenbildungsvorgang den Haken 5 durch eine zuvor gebildete Masche ziehen zu können, wird üblicherweise ein Schieber verwendet, der in einem Führungsbereich 6 geführt ist. Der Schieber ist hier aus Gründen der Übersicht nicht dargestellt. Der Führungsbereich 6 weist eine erste Führungsschiene 7 und eine zweite Führungsschiene 8 auf, zwischen denen der Schieber geführt wird.The compound needle 1 has a shaft 2 which has a longitudinal direction. The compound needle 1 also has a hook area 3 which has a catching space 4 which is partly delimited by a hook 5. In order to be able to pull the hook 5 through a previously formed loop during a loop formation process, a slide is usually used which is guided in a guide area 6. The slide is not shown here for reasons of clarity. The guide area 6 has a first guide rail 7 and a second guide rail 8, between which the slide is guided.

Es ist aus Fig. 1a und 1b ohne weitere zu erkennen, dass der Hakenbereich 3 eine wesentlich kleineren Querschnitt aufweist als der Schaft 2. Die Größe des Querschnitts des Schafts 2 kann durchaus das Zwei- bis Dreifache der Größe des Querschnitts des Hakenbereichs 3 betragen.It's over Figures 1a and 1b without further recognizing that the hook area 3 has a significantly smaller cross section than the shaft 2. The size of the cross section of the shaft 2 can be two to three times the size of the cross section of the hook area 3.

Zwischen dem Hakenbereich 3 und dem Schaft 2 ist ein Übergangsbereich 9 vorgesehen, in dem sich der Querschnitt der Schiebernadel 1 vom Querschnitt des Hakenbereichs 3 zum Querschnitt des Schafts 2 vergrößert. Der Querschnitt liegt hierbei in einer Schnittebene, die senkrecht zur Längsrichtung gerichtet ist. Die Längsrichtung verläuft von einem Ende 10 der Schiebernadel zum geschlossenen Ende des Fangraums 4.A transition area 9 is provided between the hook area 3 and the shaft 2, in which the cross section of the compound needle 1 increases from the cross section of the hook area 3 to the cross section of the shaft 2. The cross section here lies in a cutting plane which is directed perpendicular to the longitudinal direction. The longitudinal direction runs from one end 10 of the compound needle to the closed end of the trap chamber 4.

Der Übergangsbereich 9 ist asymmetrisch ausgebildet. Wie man durch eine Zusammenschau der Figuren 1a und 1b erkennen kann, ist der Übergangsbereich 9 in Bezug auf mindestens zwei Ebenen, die durch die Längsachse des Schaftes 2 verlaufen, asymmetrisch ausgebildet. In einer besonders bevorzugten Ausgestaltung weist der Übergangsbereich überhaupt keine Symmetrien auf.The transition area 9 is asymmetrical. How to look at the Figures 1a and 1b As can be seen, the transition region 9 is designed asymmetrically in relation to at least two planes which run through the longitudinal axis of the shaft 2. In a particularly preferred embodiment, the transition area has no symmetries at all.

Dies kann man beispielsweise dadurch realisieren, dass der Übergangsbereich 9 in einem Teil, der üblicherweise als "Konusbereich" bezeichnet wird, eine erste Flanke 11 auf einer Seite und eine zweite Flanke 12 auf seiner gegenüberliegenden Seite aufweist. Um die nachfolgende Erläuterung zu vereinfachen, ist die erste Flanke 11 an der rechten Seite der Schiebernadel und die zweiten Flanke 12 an der linken Seite der Schiebernadel 1 ausgebildet, wenn man von der Seite des Hakens 5 auf die Schiebernadel 1 blickt. Auf der Seite des Hakens 5 der Schiebernadel 1 ist dementsprechend eine Vorderseite 13 angeordnet, wobei sich gegenüberliegend eine Rückseite 14 befindet. In der Vorderseite 13 ist der Führungsbereich 6 angeordnet.This can be achieved, for example, in that the transition area 9 has a first flank 11 on one side and a second flank 12 on its opposite side in a part which is usually referred to as the “conical area”. In order to simplify the following explanation, the first flank 11 is formed on the right side of the compound needle and the second flank 12 is formed on the left side of the compound needle 1 when looking at the compound needle 1 from the side of the hook 5. A front side 13 is accordingly arranged on the side of the hook 5 of the compound needle 1, with a rear side 14 being located opposite. The guide area 6 is arranged in the front side 13.

Die erste Flanke 11 weist eine Anfangsposition 15 auf und die zweite Flanke 12 weist eine Anfangsposition 16 auf. Man kann in Fig. 1b gut erkennen, dass die erste Flanke 11 und die zweite Flanke 12 unterschiedliche Anfangspositionen 15, 16 in Bezug auf die Längsachse des Schaftes 2 aufweisen.The first flank 11 has a starting position 15 and the second flank 12 has a starting position 16. One can in Figure 1b It is easy to see that the first flank 11 and the second flank 12 have different starting positions 15, 16 in relation to the longitudinal axis of the shaft 2.

Alternativ oder zusätzlich kann auch vorgesehen sein, dass die erste Flanke 11 und die zweite Flanke 12 unterschiedliche Steigungen in Bezug auf die Längsachse des Schaftes aufweisen.Alternatively or additionally, it can also be provided that the first flank 11 and the second flank 12 have different gradients with respect to the longitudinal axis of the shaft.

Wenn nun eine Masche aus dem Fangraum 4 auf den Schaft 2 überführt werden soll, muss sie geweitet werden, weil der Schaft 2 einen größeren Querschnitt als der Hakenbereich 3 aufweist. Durch die dargestellte Ausbildung wird die Masche zunächst auf die erste Flanke 11 geführt und durch die Steigung der Flanke 11 aufgeweitet. Wenn die Masche bereits etwas aufgeweitet worden ist, und zwar in eine Richtung (im vorliegenden Fall nach rechts), dann wird sie auf der zweiten Flanke 12 in die entgegengesetzte Richtung (im vorliegenden Fall nach links) aufgeweitet. Durch dieses zeitlich versetzte Aufweiten lassen sich die Kräfte, die zum Aufweiten der Masche benötigt werden klein halten.If a loop is to be transferred from the catching space 4 to the shaft 2, it must be widened because the shaft 2 has a larger cross-section than the hook area 3. As a result of the configuration shown, the mesh is first guided onto the first flank 11 and widened by the slope of the flank 11. If the mesh has already been widened somewhat, specifically in one direction (in the present case to the right), then it is widened on the second flank 12 in the opposite direction (in the present case to the left). By means of this staggered expansion, the forces that are required to expand the mesh can be kept small.

Die erste Führungsschiene 7 weist eine erste Anfangsposition 17 auf und die zweite Führungsschiene 8 weist eine zweite Anfangsposition 18 auf. Man kann in Fig. 1b erkennen, dass die beiden Anfangspositionen 17, 18 verschieden und in Längsrichtung gegeneinander versetzt sind. Man kann in Fig. 1a erkennen, dass die zweite Schiene 8 schneller größer wird als die erste Schiene 7. Die erste Schiene 7 und die zweite Schiene 8 haben dementsprechend unterschiedliche Verläufe. Dies kann man dadurch realisieren, dass die erste Führungsschiene 7 eine andere Steigung und/oder Krümmung als die zweite Führungsschiene 8 aufweist.The first guide rail 7 has a first starting position 17 and the second guide rail 8 has a second starting position 18. One can in Figure 1b recognize that the two starting positions 17, 18 are different and offset from one another in the longitudinal direction. One can in Fig. 1a recognize that the second rail 8 becomes larger faster than the first rail 7. The first rail 7 and the second rail 8 accordingly have different courses. This can be achieved in that the first guide rail 7 has a different slope and / or curvature than the second guide rail 8.

Wie man in Fig. 1b erkennen kann, schließt sich die erste Führungsschiene 7 unmittelbar an die erste Flanke 11 an. Mit anderen Worten entspricht eine Endposition der ersten Flanke 11 der Anfangsposition 17 der ersten Schiene 7. In gleicher Weise schließt sich die zweite Schiene 8 unmittelbar an die zweite Flanke 12 an. Die Anfangsposition 18 der zweiten Schiene 8 entspricht der Endposition der zweiten Flanke 12.How to get in Figure 1b can see, the first guide rail 7 directly adjoins the first flank 11. In other words, an end position of the first flank 11 corresponds to the starting position 17 of the first rail 7. In the same way, the second rail 8 directly adjoins the second flank 12. The starting position 18 of the second rail 8 corresponds to the end position of the second flank 12.

Durch die Ausbildung der Führungsschienen 7, 8 in diesem Teil des Übergangsbereichs 9 erfolgt in ähnlicher Weise, wie bei den Flanken 11, 12 des Konusbereichs eine Aufweitung der Masche zunächst an der ersten Führungsschiene 7 und dann, etwas später einsetzend, aber gleichzeitig, an der zweiten Führungsschiene 8, wobei die Aufweitung an der zweiten Führungsschiene 8 aufgrund der stärkeren Zunahme der Höhe der zweiten Führungsschiene 9 hier etwas schneller erfolgt. Gleichwohl lassen sich die Kräfte, die zum Aufweiten der Masche benötigt werden, kleiner halten, als wenn die Masche mit einem Mal aufgeweitet würde.The formation of the guide rails 7, 8 in this part of the transition area 9 results in a widening of the mesh first on the first guide rail 7 and then, starting a little later, but at the same time, on the flanks 11, 12 of the conical area second guide rail 8, the widening on the second guide rail 8 taking place somewhat faster here due to the greater increase in the height of the second guide rail 9. At the same time, the forces that are required to expand the mesh can be kept smaller than if the mesh were expanded all at once.

Fig. 2 zeigt eine abgewandelte Form der Schiebernadel, die im Wesentlichen der Ausführungsform nach Fig. 1 entspricht. Fig. 2 shows a modified form of the compound needle, which essentially corresponds to the embodiment Fig. 1 corresponds.

Wie man in Fig. 2b erkennen kann, ist hier jedoch die Überlappung zwischen der ersten Flanke 11 und der zweiten Flanke 12 geringer, so dass eine Endposition 19 der ersten Flanke 11 im Bereich der Anfangsposition 16 der zweiten Flanke 12 angeordnet ist. Die beiden Positionen 16, 19 müssen nicht exakt übereinstimmen. Eine Überlappung der beiden Flanken 11, 12 um 15 % bis 20 % ihrer Länge ist durchaus zulässig.How to get in Figure 2b can be seen, the overlap between the first flank 11 and the second flank 12 is smaller, so that an end position 19 of the first flank 11 is arranged in the area of the starting position 16 of the second flank 12. The two positions 16, 19 do not have to match exactly. An overlap of the two flanks 11, 12 by 15% to 20% of their length is entirely permissible.

Claims (9)

  1. Slider needle (1) having a shaft (2) which has a longitudinal direction, a hook region (3) which has a catch space (4), which is partially bounded by a hook (5), and a guide region (6) for a slider, the shaft (2) having a cross-section, which is larger than a cross-section of the hook region (3), and a transition region (9) which is asymmetrically formed is arranged between the hook region (3) and the shank (2), characterized in that the transition region (9) is asymmetrically formed with respect to at least two planes which run through the longitudinal axis of the shank.
  2. Slider needle according to claim 1, characterized in that the transition region (9) has no symmetries.
  3. Slider needle according to one of claims 1 or 2, characterized in that the transition region (9) has a first flank (11) on one side and a second flank (12) on its opposite side, the first flank (11) and the second flank (12) having different initial positions (15, 16) and/or pitches with respect to the longitudinal axis of the shaft (2).
  4. Slider needle according to claim 3, characterized in that the initial position (16) of the second flank (12) is arranged in the region of an end position (19) of the first flank (11).
  5. Slider needle according to one of claims 1 to 4, characterized in that the guide region (6) has a first guide rail (7) and a second guide rail (8), and the guide rails (7, 8) have different courses in the transition region (9).
  6. Slider needle according to claim 5, characterized in that the first guide rail (7) has a different initial position (17) than the second guide rail (8).
  7. Slider needle according to claim 5 or 6, characterized in that the first guide rail (7) has a different pitch and/or curvature than the second guide rail (8).
  8. Slider needle according to any of claims 5 to 7, characterized in that the first guide rail (7) has an initial position (17) which corresponds to an end position of the first flank (11).
  9. Slider needle according to any one of claims 5 to 8, characterized in that the second guide rail (8) has an initial position (18) which corresponds to an end position of the second flank (12).
EP18158283.4A 2018-02-23 2018-02-23 Slider needle Active EP3530790B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18158283.4A EP3530790B1 (en) 2018-02-23 2018-02-23 Slider needle
CN201810600104.4A CN110184736B (en) 2018-02-23 2018-06-12 Composite needle

Applications Claiming Priority (1)

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EP18158283.4A EP3530790B1 (en) 2018-02-23 2018-02-23 Slider needle

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EP3530790A1 EP3530790A1 (en) 2019-08-28
EP3530790B1 true EP3530790B1 (en) 2020-08-26

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CN (1) CN110184736B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3617357B1 (en) * 2019-09-27 2021-08-18 KARL MAYER STOLL R&D GmbH Warp knitting needle and method for producing a warp knitted net
EP3702504B1 (en) * 2020-06-30 2022-09-07 KARL MAYER STOLL R&D GmbH Warp knitting machine, sliding-tongue needle assembly and method for producing an elastic warp knit fabric
CN113512815B (en) * 2021-07-16 2022-10-18 广州市赛德精工科技有限公司 Groove needle of warp knitting machine

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Publication number Priority date Publication date Assignee Title
DE2815385C2 (en) * 1978-04-10 1979-10-25 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Warp knitting machine with compound needles
DE3005787C2 (en) * 1980-02-15 1983-03-31 Liba Maschinenfabrik Gmbh, 8674 Naila Warp knitting machine
DE3143743C2 (en) * 1981-11-04 1985-01-24 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Compound needle for warp knitting machines
DE10164550A1 (en) * 2001-12-18 2003-07-10 Sipra Patent Beteiligung Needle for knitting or warp knitting machines and knitting machine equipped with them
DE502004008493D1 (en) * 2004-10-07 2009-01-02 Stoll H Gmbh & Co Kg Tongue needle for a knitting machine
DE502005003487D1 (en) * 2005-09-22 2008-05-08 Groz Beckert Kg knitting tool
CN205443602U (en) * 2015-12-28 2016-08-10 江苏润源控股集团有限公司 Double needle bar warp machine cuts open cloth device

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Publication number Publication date
CN110184736A (en) 2019-08-30
CN110184736B (en) 2021-03-19
EP3530790A1 (en) 2019-08-28

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