EP2145990B1 - Needle selection device - Google Patents

Needle selection device Download PDF

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Publication number
EP2145990B1
EP2145990B1 EP20080012752 EP08012752A EP2145990B1 EP 2145990 B1 EP2145990 B1 EP 2145990B1 EP 20080012752 EP20080012752 EP 20080012752 EP 08012752 A EP08012752 A EP 08012752A EP 2145990 B1 EP2145990 B1 EP 2145990B1
Authority
EP
European Patent Office
Prior art keywords
needle
selection
selection element
selecting
leg
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.)
Expired - Fee Related
Application number
EP20080012752
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German (de)
French (fr)
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EP2145990A1 (en
Inventor
Armin Diebold
Stefan Mayer
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.)
H Stoll GmbH and Co KG
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H Stoll GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by H Stoll GmbH and Co KG filed Critical H Stoll GmbH and Co KG
Priority to EP20080012752 priority Critical patent/EP2145990B1/en
Priority to DE200850002304 priority patent/DE502008002304D1/en
Priority to CN200910159386XA priority patent/CN101629356B/en
Publication of EP2145990A1 publication Critical patent/EP2145990A1/en
Application granted granted Critical
Publication of EP2145990B1 publication Critical patent/EP2145990B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
    • D04B15/78—Electrical devices

Definitions

  • the invention relates to a needle selection device of a knitting machine for selecting knitting needles, with a selection element and a magnet system by which the selection element can be influenced.
  • Such a needle selector is, for example, from EP 0 748 887 B1 known.
  • Needle selection elements are provided which select needles according to the knitting data and bring the needles into action to participate in the knitting process. This makes it possible to knit different patterns with the knitting machine.
  • a selection element 27 is arranged between the lock plate 61 and a selection magnet system 80.
  • the selection element 27 lies with its elastic leg 29 on the back of a slider 20. Furthermore, the slider 20 is partially on the needle board 14.
  • the selection elements When the selection elements are dropped from the selection magnet system into an operating position, the selection elements have no horizontal guidance. They are only pressed by the elastic leg 29 to the wedges 6, 7, which represents a certain uncertainty factor for the needle selection.
  • the object of the present invention is to provide a needle selection device which has fewer tolerances and in which the selection element is guided in a safer manner.
  • a needle selection device of the type mentioned wherein at least one guide element is seen voform and the selection element has a cooperating with the at least one guide guide, wherein the guide is expandable against a restoring force.
  • This measure ensures that the selection element is always guided, in particular horizontally. As a result, the position of the selection element is set more accurately than in the prior art regardless of the selection state, which ensures a more reliable selection of the needle.
  • the guide can be designed as a horizontal guide.
  • the selection element is height-fixed by the at least one guide element.
  • the selection element is arranged in a defined horizontal position.
  • the guide can be formed by two legs, wherein an upper leg engages over at least one guide element. In an idle state, so if the selector is not affected by the Magnet system is tightened, the two legs have a defined distance from each other. If the selection element is brought into contact with the magnet system, then the upper leg, which is supported by the at least one guide element, remains substantially in its horizontal position, while by widening the guide, the second leg can pivot in the direction of the magnet system. This movement takes place against a restoring force, so that the selection element, when it is no longer tightened by the magnet system, automatically resumes its rest position.
  • the legs are connected together in such a way that they form the shape of a horizontal U.
  • the upper leg or a connecting region of the legs is designed to be flexible in bending.
  • the force which is necessary to pull the selector element from the position in which it adheres to the magnet system back to its starting position from the bending stress of the flexurally elastic leg, which may be formed as a bending spring, or by bending zones, for example in Connecting region of the two legs to be generated.
  • the guide elements represent a limitation of the displacement path of the selection element in the retracted and needle-near position.
  • the projection may in principle be provided on both legs, but is preferably provided on the lower leg.
  • the distance between the lower and the upper leg is preferably designed so that the guide elements are included. In particular, the distance between the legs is matched to the guide elements.
  • the guide elements may for example be formed in each case as wires, which extend through needle bed webs transversely to the direction of movement of the selection element through the needle bed.
  • the selection element is designed to be yielding in an area at its remote end. As a result, tolerances of the selection element or tolerances of lock parts, which act on the selection element in this area, be compensated.
  • the end remote from the needle comprises a leg which can be deflected against a restoring force and which cooperates with a lock part.
  • the deflectable leg can be formed flexurally elastic and represent a bending spring.
  • the selection element and the slider are arranged in the direction of movement of the slider only one behind the other. This means that they do not overlap and are not stacked in the vertical direction. This also allows tolerances can be avoided. Overall, the needle selector can be made flatter thereby.
  • the scope of the invention also includes a knitting machine having a needle selection device according to the invention.
  • the Fig. 1a to 1d show the course of the selection of a knitting needle, which is to participate in the knitting process for the purpose of stitching or for hanging stitches, etc.
  • the selection is made by means of a selection element 1, which cooperates with a selection magnet system 2.
  • the selection element 1 and the selection magnet system 2 are part of a needle selector 100, in which the selection element 1 a Slider 3 acted upon, which in turn acts on a needle plate 4 shown only in sections, whereby the unillustrated foot according to the selection state of the selection element 1 with its corresponding lock parts is engaged or not.
  • the selection element 1 is mounted with its upper leg 11 on the formed as wires 6 and 7 guide elements which extend transversely to the direction of movement of the selection element 1 through the needle bed webs 9 of the needle bed 5.
  • the selection element 1 For storage of the selection element 1, other cross-sectional shapes of the guide elements can be used.
  • the selection element 1 further comprises a lower leg 12, which is connected via a region 13 with the upper leg 11.
  • the distance between the two legs 11 and 12 to each other corresponds approximately to the diameter of the wires 6 and 7, resulting in an exact height fixation of the selection element 1 in the needle bed.
  • the space between the legs 11, 12 forms a guide.
  • the upper leg 11 is resilient (bending elastic) executed and the lower leg 12 rigid. This is achieved in that the upper leg has a cross section which allows a bend, and the lower leg 12 has a cross section which prevents bending, so that the lower leg 12 is rigid.
  • the lower leg 12 has approximately on half of its length on a projection 14 which is, in the installed state of the selection element 1 in the needle bed 5, between the two wires 6 and 7 and extending in the direction of the upper leg 11.
  • the wires 6 and 7 have in addition to the storage of the selection element 1, the second task of limiting the displacement of the selection element 1, wherein the wire 6 forms the boundary point for the retracted position of the selection element 1 and the wire 7, the boundary point for its foremost (needle) position , They act together with the projection 14 of the selection element 1 in each case, which comes in the rear and front end position of the selection element 1 in the immediate vicinity of one of the wires 6 and 7.
  • the leg 12 widens at its rear end to the functional area 15.
  • the system is carried out on the selection magnet system 2.
  • the supply movement is introduced to the selection magnet system 2 on the surface 152. Due to the elastic leg 151, the needle-distal region of the selection element is made yielding.
  • control foot 16 In front of the functional area 15, directed upwards, is the control foot 16, which, when the selection element 1 is not pivoted downwards, interacts with the lock part 83.
  • the lock parts 83 and 84 for movement initiation in the selection element 1 via its control foot 16 are attached to the lock plate 8.
  • the foot 17 is directed upward, with which the exact position of the selection element 1 to the selection point of the selection magnet system 2 is determined by comprising of the lock parts 85 and 86 becomes. These lock parts also move the Selection element 1 on foot 17 from its advanced position to its selection position.
  • the lock plate 8 has at its rear end the angle bar 81. In the opening 82, the selection magnet system 2 is fixed. By this arrangement, the selection element 1 is located between the lock plate 8 and the selection magnet system. 2
  • Fig. 1a shows in detail a situation in which the selection element 1 is in its selection position, in which it was brought by the detection of the foot 17 through the lock parts 85, 86.
  • the projection 14 of the selection element 1 is located close to the wire 6.
  • FIG. 1b is pressed by the application of the leg 151 through the lock member 84, the selection element 1 with its surface 150 on the permanent magnet, not shown, of the selection magnet system 2.
  • leg 151 is formed as a bending spring, the predetermined by the lock part 84 Andschreibweg be increased so that any tolerances in the components 1, 2, 84 are compensated and thus always secure pressing the surface 150 of the selection element 1 secured to the selection magnet system 2 is.
  • the selection element 1 is located in the Fig. 1c with its surface 150, which is formed on the leg 12, on the selection magnet system 2 at. In this case, the selection element 1 is supported by its legs 11 on the wires 6 and 7.
  • the permanent magnet must at least apply the force that is generated by the deformation of the leg 11 (bending spring).
  • Fig. 2a shows the in the Fig. 1a to 1d shown and described, preferred embodiment of the selection element 1 in an enlarged view.
  • the upper leg 11 is resilient by a suitably selected cross-section.
  • the lower leg 12 for the purpose of positioning and positioning accuracy of the selection element 1 when pressing the selection magnet system 2 towards executed by a suitably selected cross section dimensionally stable.
  • Fig. 2b shows a further embodiment of a selection element 1 '.
  • Selection element 1 Unlike in Fig. 2a Selection element 1 'has a defined bending region 18 between the upper and lower dimensionally stable legs 11, 12. In this bending region 18, the cross-section is reduced so that the pivotal movement of the leg 12 takes place in it and the corresponding force is generated which the leg 12 is retracted to its original position.
  • Fig. 2c also shows a further embodiment of a selection element 1 ".
  • selection element 1 is in this selection element 1 "of the bending region 18 'in the region of the articulation of the dimensionally stable leg 11 to the dimensionally stable legs 12th

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

Description

Die Erfindung betrifft eine Nadelauswahleinrichtung einer Strickmaschine zur Auswahl von Stricknadeln, mit einem Auswahlelement und einem Magnetsystem, durch das das Auswahlelement beeinflussbar ist.The invention relates to a needle selection device of a knitting machine for selecting knitting needles, with a selection element and a magnet system by which the selection element can be influenced.

Eine derartige Nadelauswahleinrichtung ist beispielsweise aus der EP 0 748 887 B1 bekannt geworden.Such a needle selector is, for example, from EP 0 748 887 B1 known.

Bei bekannten Strickmaschinen ist eine große Anzahl von Nadeln in Nadelbetten angeordnet. Es sind Nadelauswahlelemente vorgesehen, die Nadeln entsprechend den Strickdaten auswählen und die Nadeln in Tätigkeit bringen, welche am Strickvorgang teilnehmen sollen. Dadurch ist es möglich, unterschiedliche Muster mit der Strickmaschine zu stricken.In known knitting machines, a large number of needles are arranged in needle beds. Needle selection elements are provided which select needles according to the knitting data and bring the needles into action to participate in the knitting process. This makes it possible to knit different patterns with the knitting machine.

Bei der bekannten Nadelauswahleinrichtung ist ein Auswahlelement 27 zwischen der Schlossplatte 61 und einem Auswahlmagnetsystem 80 angeordnet. Das Auswahlelement 27 liegt mit seinem elastischen Schenkel 29 auf dem Rücken eines Schiebers 20 auf. Weiterhin liegt der Schieber 20 teilweise auf der Nadelplatine 14 auf. Durch die Lagerung des Auswahlelements 27 auf diesen Bauteilen 20, 14 werden Toleranzen in die Nadelauswahleinrichtung gebracht, welche die Funktionalität vermindern können.In the known needle selection device, a selection element 27 is arranged between the lock plate 61 and a selection magnet system 80. The selection element 27 lies with its elastic leg 29 on the back of a slider 20. Furthermore, the slider 20 is partially on the needle board 14. By the storage of the selection element 27 on these components 20, 14 tolerances are placed in the needle selector, which can reduce the functionality.

Wenn die Auswahlelemente vom Auswahlmagnetsystem in eine Tätigkeitsposition abgeworfen werden, haben die Auswahlelemente horizontal keine Zwangsführung. Sie werden lediglich durch den elastischen Schenkel 29 an die Keile 6, 7 angedrückt, was einen gewissen Unsicherheitsfaktor für die Nadelauswahl darstellt.When the selection elements are dropped from the selection magnet system into an operating position, the selection elements have no horizontal guidance. They are only pressed by the elastic leg 29 to the wedges 6, 7, which represents a certain uncertainty factor for the needle selection.

Aufgabe der vorliegenden Erfindung ist es, eine Nadelauswahleinrichtung bereitzustellen, die weniger Toleranzen aufweist und bei der das Auswahlelement sicherer geführt ist.The object of the present invention is to provide a needle selection device which has fewer tolerances and in which the selection element is guided in a safer manner.

Gelöst wird diese Aufgabe erfindungsgemäß durch eine Nadelauswahleinrichtung der eingangs genannten Art, wobei zumindest ein Führungselement vogesehen ist und das Auswahlelement eine mit dem zumindest einem Führungselement zusammenwirkende Führung aufweist, wobei die Führung gegen eine Rückstellkraft aufweitbar ist. Durch diese Maßnahme wird sichergestellt, dass das Auswahlelement stets, insbesondere horizontal, geführt ist. Dadurch ist die Lage des Auswahlelements unabhängig vom Auswahlzustand genauer festgelegt als im Stand der Technik, was eine zuverlässigere Nadelauswahl sicherstellt. Die Führung kann als Horizontalführung ausgebildet sein.This object is achieved according to the invention by a needle selection device of the type mentioned, wherein at least one guide element is seen vogesehen and the selection element has a cooperating with the at least one guide guide, wherein the guide is expandable against a restoring force. This measure ensures that the selection element is always guided, in particular horizontally. As a result, the position of the selection element is set more accurately than in the prior art regardless of the selection state, which ensures a more reliable selection of the needle. The guide can be designed as a horizontal guide.

Gemäß einer bevorzugten Ausführungsform kann vorgesehen sein, dass das Auswahlelement durch das zumindest eine Führungselement höhenfixiert ist. Somit ist das Auswahlelement in einer definierten horizontalen Lage angeordnet. Die Nachteile des Standes der Technik werden vermieden.According to a preferred embodiment it can be provided that the selection element is height-fixed by the at least one guide element. Thus, the selection element is arranged in a defined horizontal position. The disadvantages of the prior art are avoided.

Die Führung kann durch zwei Schenkel gebildet sein, wobei ein oberer Schenkel zumindest ein Führungselement übergreift. In einem Ruhezustand, also wenn das Auswahlelement nicht durch das Magnetsystem angezogen ist, weisen die beiden Schenkel einen definierten Abstand zueinander auf. Wird das Auswahlelement mit dem Magnetsystem in Kontakt gebracht, so bleibt der obere Schenkel, der durch das zumindest eine Führungselement gestützt ist, im Wesentlichen in seiner horizontalen Position, während durch Aufweiten der Führung der zweite Schenkel in Richtung auf das Magnetsystem verschwenken kann. Diese Bewegung erfolgt gegen eine Rückstellkraft, sodass das Auswahlelement, wenn es durch das Magnetsystem nicht mehr angezogen wird, seine Ruhelage automatisch wieder einnimmt. Vorzugsweise sind die Schenkel in der Weise miteinander verbunden, dass sie die Form eines liegenden U bilden.The guide can be formed by two legs, wherein an upper leg engages over at least one guide element. In an idle state, so if the selector is not affected by the Magnet system is tightened, the two legs have a defined distance from each other. If the selection element is brought into contact with the magnet system, then the upper leg, which is supported by the at least one guide element, remains substantially in its horizontal position, while by widening the guide, the second leg can pivot in the direction of the magnet system. This movement takes place against a restoring force, so that the selection element, when it is no longer tightened by the magnet system, automatically resumes its rest position. Preferably, the legs are connected together in such a way that they form the shape of a horizontal U.

Gemäß einer bevorzugten Ausführungsform kann vorgesehen sein, dass der obere Schenkel oder ein Verbindungsbereich der Schenkel biegeelastisch ausgebildet ist. Dadurch kann die Kraft, welche nötig ist, um das Auswahlelement aus der Position, in welcher es am Magnetsystem anhaftet, zurück in seine Ausgangsposition zu ziehen, aus der Biegespannung des biegeelastischen Schenkels, der als Biegefeder ausgebildet sein kann, oder durch Biegezonen, beispielsweise im Verbindungsbereich der beiden Schenkel, erzeugt werden.According to a preferred embodiment it can be provided that the upper leg or a connecting region of the legs is designed to be flexible in bending. Thereby, the force which is necessary to pull the selector element from the position in which it adheres to the magnet system back to its starting position, from the bending stress of the flexurally elastic leg, which may be formed as a bending spring, or by bending zones, for example in Connecting region of the two legs to be generated.

Besondere Vorteile ergeben sich, wenn zwei Führungselemente vorgesehen sind und an einem der Schenkel ein in den Zwischenraum zwischen den Führungselementen ragender Vorsprung vorgesehen ist. Durch das Zusammenwirken des Vorsprungs und der Führungselemente kann das Auswahlelement nur in Grenzen horizontal bewegt werden. Die Führungselemente stellen eine Begrenzung des Verschiebewegs des Auswahlelements in der zurückgezogenen und nadelnahen Position dar. Der Vorsprung kann grundsätzlich an beiden Schenkeln vorgesehen sein, ist jedoch vorzugsweise am unteren Schenkel vorgesehen. Der Abstand zwischen dem unteren und dem oberen Schenkel ist vorzugsweise so ausgelegt, dass die Führungselemente umfasst werden. Insbesondere ist der Abstand zwischen den Schenkeln auf die Führungselemente abgestimmt. Die Führungselemente können beispielsweise jeweils als Drähte ausgebildet sein, welche sich durch Nadelbettstege quer zur Bewegungsrichtung des Auswahlelements durch das Nadelbett erstrecken.Particular advantages arise when two guide elements are provided and provided on one of the legs in the space between the guide elements projecting projection. Due to the interaction of the projection and the guide elements, the selection element can only be moved horizontally within limits. The guide elements represent a limitation of the displacement path of the selection element in the retracted and needle-near position. The projection may in principle be provided on both legs, but is preferably provided on the lower leg. The distance between the lower and the upper leg is preferably designed so that the guide elements are included. In particular, the distance between the legs is matched to the guide elements. The guide elements may for example be formed in each case as wires, which extend through needle bed webs transversely to the direction of movement of the selection element through the needle bed.

Gemäß einer besonders bevorzugten Ausgestaltung der Erfindung kann vorgesehen sein, dass das Auswahlelement an seinem nadelfernen Ende in einem Bereich nachgiebig ausgestaltet ist. Dadurch können Toleranzen des Auswahlelements bzw. Toleranzen von Schlossteilen, die das Auswahlelement in diesem Bereich beaufschlagen, ausgeglichen werden.According to a particularly preferred embodiment of the invention can be provided that the selection element is designed to be yielding in an area at its remote end. As a result, tolerances of the selection element or tolerances of lock parts, which act on the selection element in this area, be compensated.

Gemäß einer Weiterbildung kann vorgesehen sein, dass das nadelferne Ende einen gegen eine Rückstellkraft auslenkbaren Schenkel umfasst, der mit einem Schlossteil zusammenwirkt. Der auslenkbare Schenkel kann dabei biegeelastisch ausgebildet sein und eine Biegefeder darstellen.According to a further development, it can be provided that the end remote from the needle comprises a leg which can be deflected against a restoring force and which cooperates with a lock part. The deflectable leg can be formed flexurally elastic and represent a bending spring.

Weitere Vorteile ergeben sich, wenn das Auswahlelement weder auf einer Nadelplatine noch auf einem mit der Nadelplatine zusammenwirkenden Schieber aufliegt. Dadurch werden die im Bezug zum Stand der Technik beschriebenen Nachteile durch Toleranzen vermieden. Es ist eine genauere Positionierung des Auswahlelements zum Auswahlmagneten möglich.Further advantages are obtained when the selection element rests neither on a needle board nor on a cooperating with the needle board slide. As a result, the disadvantages described in relation to the prior art are avoided by tolerances. It is possible a more precise positioning of the selection element to the selection magnet.

Weiterhin kann vorgesehen sein, dass das Auswahlelement und der Schieber in Bewegungsrichtung des Schiebers gesehen lediglich hintereinander angeordnet sind. Dies bedeutet, dass sie sich nicht überlappen und in vertikaler Richtung gesehen nicht übereinander angeordnet sind. Auch dadurch können Toleranzen vermieden werden. Insgesamt kann die Nadelauswahleinrichtung dadurch flacher hergestellt werden.Furthermore, it can be provided that the selection element and the slider are arranged in the direction of movement of the slider only one behind the other. This means that they do not overlap and are not stacked in the vertical direction. This also allows tolerances can be avoided. Overall, the needle selector can be made flatter thereby.

In den Rahmen der Erfindung fällt außerdem eine Strickmaschine mit einer erfindungsgemäßen Nadelauswahleinrichtung.The scope of the invention also includes a knitting machine having a needle selection device according to the invention.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden detaillierten Beschreibung von Ausführungsbeispielen der Erfindung, anhand der Figuren der Zeichnung, die erfindungswesentliche Einzelheiten zeigen, sowie aus den Ansprüchen.Further features and advantages of the invention will become apparent from the following detailed description of embodiments of the invention, with reference to the figures of the drawing, which show details essential to the invention, and from the claims.

Es zeigen:

Fig. 1a bis 1d
teilweise Schnittdarstellungen durch ein Nadelbett einer Strickmaschine für unterschiedliche Stellungen eines Auswahlelements;
Fig. 2a bis 2c
unterschiedliche Ausgestaltungen des Auswahlelements.
Show it:
Fig. 1a to 1d
partly sectional views through a needle bed of a knitting machine for different positions of a selection element;
Fig. 2a to 2c
different embodiments of the selection element.

Die Fig. 1a bis 1d zeigen den Ablauf der Auswahl einer Stricknadel, welche am Strickprozess zum Zweck der Maschenbildung oder zum Umhängen von Maschen usw. teilnehmen soll. Die Auswahl erfolgt mittels eines Auswahlelements 1, welches dazu mit einem Auswahlmagnetsystem 2 zusammenarbeitet.The Fig. 1a to 1d show the course of the selection of a knitting needle, which is to participate in the knitting process for the purpose of stitching or for hanging stitches, etc. The selection is made by means of a selection element 1, which cooperates with a selection magnet system 2.

Das Auswahlelement 1 und das Auswahlmagnetsystem 2 sind Teil einer Nadelauswahleinrichtung 100, bei welcher das Auswahlelement 1 einen Schieber 3 beaufschlagt, welcher wiederum auf eine nur abschnittweise dargestellte Nadelplatine 4 einwirkt, wodurch deren nicht dargestellter Fuß entsprechend dem Auswahlzustand des Auswahlelements 1 mit ihren korrespondierenden Schlossteilen in Eingriff kommt oder nicht.The selection element 1 and the selection magnet system 2 are part of a needle selector 100, in which the selection element 1 a Slider 3 acted upon, which in turn acts on a needle plate 4 shown only in sections, whereby the unillustrated foot according to the selection state of the selection element 1 with its corresponding lock parts is engaged or not.

In einer bevorzugten Ausgestaltung ist das Auswahlelement 1 mit seinem oberen Schenkel 11 auf den als Drähte 6 und 7 ausgebildeten Führungselementen gelagert, welche sich quer zur Bewegungsrichtung des Auswahlelements 1 durch die Nadelbettstege 9 des Nadelbetts 5 erstrecken. Zur Lagerung des Auswahlelements 1 können auch andere Querschnittsformen der Führungselemente verwendet werden.In a preferred embodiment, the selection element 1 is mounted with its upper leg 11 on the formed as wires 6 and 7 guide elements which extend transversely to the direction of movement of the selection element 1 through the needle bed webs 9 of the needle bed 5. For storage of the selection element 1, other cross-sectional shapes of the guide elements can be used.

Das Auswahlelement 1 umfasst weiter einen unteren Schenkel 12, welcher über einen Bereich 13 mit dem oberen Schenkel 11 verbunden ist. Der Abstand der beiden Schenkel 11 und 12 zueinander entspricht etwa dem Durchmesser der Drähte 6 und 7, wodurch sich eine exakte Höhenfixierung des Auswahlelements 1 im Nadelbett ergibt. Der Freiraum zwischen den Schenkeln 11, 12 bildet eine Führung.The selection element 1 further comprises a lower leg 12, which is connected via a region 13 with the upper leg 11. The distance between the two legs 11 and 12 to each other corresponds approximately to the diameter of the wires 6 and 7, resulting in an exact height fixation of the selection element 1 in the needle bed. The space between the legs 11, 12 forms a guide.

In der bevorzugten Ausgestaltung des Auswahlelements 1 ist der obere Schenkel 11 federnd (biegeelastisch) ausgeführt und der untere Schenkel 12 starr ausgeführt. Dies wird dadurch erreicht, dass der obere Schenkel einen Querschnitt besitzt, welcher eine Biegung zulässt, und der untere Schenkel 12 einen Querschnitt besitzt, welcher eine Biegung verhindert, sodass der untere Schenkel 12 biegesteif ist.In the preferred embodiment of the selection element 1, the upper leg 11 is resilient (bending elastic) executed and the lower leg 12 rigid. This is achieved in that the upper leg has a cross section which allows a bend, and the lower leg 12 has a cross section which prevents bending, so that the lower leg 12 is rigid.

Der untere Schenkel 12 weist etwa auf der Hälfte seiner Länge einen Vorsprung 14 auf, welcher sich, in eingebautem Zustand des Auswahlelements 1 im Nadelbett 5, zwischen den beiden Drähten 6 und 7 befindet und sich in Richtung des oberen Schenkels 11 erstreckt.The lower leg 12 has approximately on half of its length on a projection 14 which is, in the installed state of the selection element 1 in the needle bed 5, between the two wires 6 and 7 and extending in the direction of the upper leg 11.

Die Drähte 6 und 7 haben neben der Lagerung des Auswahlelements 1 die zweite Aufgabe der Begrenzung des Verschiebeweges des Auswahlelements 1, wobei der Draht 6 den Begrenzungspunkt für die zurückgezogene Position des Auswahlelements 1 und der Draht 7 den Begrenzungspunkt für seine vorderste (nadelnahe) Position bildet. Sie wirken dabei mit dem Vorsprung 14 des Auswahlelements 1 jeweils zusammen, welcher in der hinteren und vorderen Endlage des Auswahlelements 1 in die direkte Nähe von einem der Drähte 6 und 7 kommt.The wires 6 and 7 have in addition to the storage of the selection element 1, the second task of limiting the displacement of the selection element 1, wherein the wire 6 forms the boundary point for the retracted position of the selection element 1 and the wire 7, the boundary point for its foremost (needle) position , They act together with the projection 14 of the selection element 1 in each case, which comes in the rear and front end position of the selection element 1 in the immediate vicinity of one of the wires 6 and 7.

Der Schenkel 12 erweitert sich an seinem hinteren Ende zum Funktionsbereich 15. An der Fläche 150 erfolgt die Anlage am Auswahlmagnetsystem 2. Am als Biegefeder wirkenden Schenkel 151 wird an der Fläche 152 die Anbietebewegung an das Auswahlmagnetsystem 2 eingeleitet. Aufgrund des elastischen Schenkels 151 ist der nadelferne Bereich des Auswahlelements nachgiebig ausgeführt.The leg 12 widens at its rear end to the functional area 15. At the surface 150, the system is carried out on the selection magnet system 2. On acting as a bending spring leg 151, the supply movement is introduced to the selection magnet system 2 on the surface 152. Due to the elastic leg 151, the needle-distal region of the selection element is made yielding.

Vor dem Funktionsbereich 15 steht, nach oben gerichtet, der Steuerfuß 16 ab, der, wenn das Auswahlelement 1 nicht nach unten verschwenkt ist, mit dem Schlossteil 83 zusammenwirkt. Die Schlossteile 83 und 84 zur Bewegungseinleitung in das Auswahlelement 1 über seinen Steuerfuß 16 sind an der Schlossplatte 8 angebracht.In front of the functional area 15, directed upwards, is the control foot 16, which, when the selection element 1 is not pivoted downwards, interacts with the lock part 83. The lock parts 83 and 84 for movement initiation in the selection element 1 via its control foot 16 are attached to the lock plate 8.

Im Bereich 13 der Verbindung des oberen Schenkels 11 mit dem unteren Schenkel 12 steht, nach oben gerichtet, der Fuß 17 ab, mit welchem die exakte Position des Auswahlelements 1 zur Auswahlstelle des Auswahlmagnetsystems 2 bestimmt wird, indem er von den Schlossteilen 85 und 86 umfasst wird. Diese Schlossteile bewegen zudem das Auswahlelement 1 am Fuß 17 von seiner vorgeschobenen Position in seine Auswahlposition.In the area 13 of the connection of the upper leg 11 with the lower leg 12, the foot 17 is directed upward, with which the exact position of the selection element 1 to the selection point of the selection magnet system 2 is determined by comprising of the lock parts 85 and 86 becomes. These lock parts also move the Selection element 1 on foot 17 from its advanced position to its selection position.

Die Schlossplatte 8 weist an ihrem hinteren Ende die Winkelleiste 81 auf. In deren Durchbruch 82 ist das Auswahlmagnetsystem 2 fixiert. Durch diese Anordnung befindet sich das Auswahlelement 1 zwischen der Schlossplatte 8 und dem Auswahlmagnetsystem 2.The lock plate 8 has at its rear end the angle bar 81. In the opening 82, the selection magnet system 2 is fixed. By this arrangement, the selection element 1 is located between the lock plate 8 and the selection magnet system. 2

Fig. 1a zeigt im Detail eine Situation, in welcher sich das Auswahlelement 1 in seiner Auswahlposition befindet, in die es durch das Erfassen des Fußes 17 durch die Schlossteile 85, 86 gebracht wurde. Fig. 1a shows in detail a situation in which the selection element 1 is in its selection position, in which it was brought by the detection of the foot 17 through the lock parts 85, 86.

Der Vorsprung 14 des Auswahlelements 1 befindet sich nahe an dem Draht 6.The projection 14 of the selection element 1 is located close to the wire 6.

Ausweislich Fig. 1b wird durch die Beaufschlagung des Schenkels 151 durch das Schlossteil 84 das Auswahlelement 1 mit seiner Fläche 150 an den nicht dargestellten Dauermagneten des Auswahlmagnetsystems 2 angedrückt.evidenced Fig. 1b is pressed by the application of the leg 151 through the lock member 84, the selection element 1 with its surface 150 on the permanent magnet, not shown, of the selection magnet system 2.

Da der Schenkel 151 als Biegefeder ausgebildet ist, kann der durch das Schlossteil 84 vorgegebene Andrückweg vergrößert sein, damit eventuelle Toleranzen in den Bauteilen 1, 2, 84 ausgeglichen werden und somit immer ein sicheres Andrücken der Fläche 150 des Auswahlelements 1 an das Auswahlmagnetsystem 2 gesichert ist.Since the leg 151 is formed as a bending spring, the predetermined by the lock part 84 Andrückweg be increased so that any tolerances in the components 1, 2, 84 are compensated and thus always secure pressing the surface 150 of the selection element 1 secured to the selection magnet system 2 is.

Das Auswahlelement 1 liegt in der Fig. 1c mit seiner Fläche 150, die am Schenkel 12 ausgebildet ist, am Auswahlmagnetsystem 2 an. Dabei stützt sich das Auswahlelement 1 über seinen Schenkel 11 an den Drähten 6 und 7 ab.The selection element 1 is located in the Fig. 1c with its surface 150, which is formed on the leg 12, on the selection magnet system 2 at. In this case, the selection element 1 is supported by its legs 11 on the wires 6 and 7.

Der Dauermagnet muss mindestens die Kraft aufbringen, welche durch die Verformung des Schenkels 11 (Biegefeder) generiert wird.The permanent magnet must at least apply the force that is generated by the deformation of the leg 11 (bending spring).

Bleibt das Auswahlelement 1 mit seiner Fläche 150 am Auswahlmagnetsystem 2 haften, bis es dieses durch die Schlittenbewegung verlässt, so kommt sein Steuerfuß 16 nicht in Kontakt mit dem Schlossteil 83. Dadurch wird in die mit dem Auswahlelement 1 korrespondierende, nicht dargestellte Stricknadel keine Bewegung eingeleitet.If the selection element 1 with its surface 150 adhere to the selection magnet system 2 until it leaves the latter by the carriage movement, then its control foot 16 does not come into contact with the lock part 83. As a result, no movement is initiated in the knitting needle corresponding to the selection element 1 ,

In der Fig. 1d wurde durch eine Elektromagnetspule die Kraft des Dauermagneten neutralisiert. Die Kraft, welche durch die Verformung des Schenkels 11 des Auswahlelements 1 generiert wurde, hat den Schenkel 12 daher wieder in seine Ausgangslage zurückgezogen. Dadurch kommt der Steuerfuß 16 des Auswahlelements 1 in Eingriff mit dem Schlossteil 83. Dadurch wird in das Auswahlelement 1 eine Vortriebsbewegung eingeleitet, welche im Zusammenwirken mit dem Schieber 3 den nicht dargestellten Fuß der Nadelplatine 4 in Eingriff mit nicht dargestellten Schlossteilen bringt, welche die Nadelbewegung einleiten.In the Fig. 1d The force of the permanent magnet was neutralized by an electromagnetic coil. The force which was generated by the deformation of the leg 11 of the selection element 1 has therefore withdrawn the leg 12 back to its original position. As a result, the control foot 16 of the selection element 1 comes into engagement with the lock part 83. As a result, a propulsion movement is introduced into the selection element 1, which in cooperation with the slider 3 brings the foot of the needle board 4, not shown, into engagement with lock parts, not shown, which control the needle movement initiate.

Fig. 2a zeigt die in den Fig. 1a bis 1d gezeigte und beschriebene, bevorzugte Ausführung des Auswahlelements 1 in vergrößerter Darstellung. Fig. 2a shows the in the Fig. 1a to 1d shown and described, preferred embodiment of the selection element 1 in an enlarged view.

Zum Verschwenken des Auswahlelements 1 in die Position, in welcher es am Dauermagneten des Auswahlmagnetsystems 2 anhaftet, und zum Ziehen des Auswahlelements 1 zurück in seine Ausgangsposition ist der obere Schenkel 11 durch einen geeignet gewählten Querschnitt federelastisch.For pivoting the selection element 1 in the position in which it adheres to the permanent magnet of the selection magnet system 2, and for pulling the selection element 1 back to its original position, the upper leg 11 is resilient by a suitably selected cross-section.

Im Gegensatz dazu ist der untere Schenkel 12 zum Zwecke der Lage- und Positioniergenauigkeit des Auswahlelements 1 beim Drücken zum Auswahlmagnetsystem 2 hin durch einen geeignet gewählten Querschnitt formsteif ausgeführt.In contrast, the lower leg 12 for the purpose of positioning and positioning accuracy of the selection element 1 when pressing the selection magnet system 2 towards executed by a suitably selected cross section dimensionally stable.

Fig. 2b zeigt eine weitere Ausgestaltung eines Auswahlelements 1'. Fig. 2b shows a further embodiment of a selection element 1 '.

Im Unterschied zum in Fig. 2a gezeigten Auswahlelement 1 besitzt das Auswahlelement 1' einen definierten Biegebereich 18 zwischen den oberen und unteren formsteifen Schenkeln 11, 12. In diesem Biegebereich 18 ist der Querschnitt so verkleinert, dass in ihm die Schwenkbewegung des Schenkels 12 geschieht und die entsprechende Kraft generiert wird, mit welcher der Schenkel 12 in seine Ausgangsposition zurückgezogen wird.Unlike in Fig. 2a Selection element 1 'has a defined bending region 18 between the upper and lower dimensionally stable legs 11, 12. In this bending region 18, the cross-section is reduced so that the pivotal movement of the leg 12 takes place in it and the corresponding force is generated which the leg 12 is retracted to its original position.

Fig. 2c zeigt ebenfalls eine weitere Ausgestaltung eines Auswahlelements 1". Fig. 2c also shows a further embodiment of a selection element 1 ".

Im Unterschied zum in Fig. 2b gezeigten Auswahlelement 1 liegt bei diesem Auswahlelement 1" der Biegebereich 18' im Bereich der Anlenkung des formsteifen Schenkels 11 an den formsteifen Schenkel 12.Unlike in Fig. 2b shown selection element 1 is in this selection element 1 "of the bending region 18 'in the region of the articulation of the dimensionally stable leg 11 to the dimensionally stable legs 12th

Claims (11)

  1. A needle selecting device (100) of a knitting machine for selecting knitting needles, comprising a selecting element (1, 1', 1") and a magnetic system (2) by which the selecting element (1, 1',1") can be influenced, characterized in that at least one guiding element is provided and the selecting element (1, 1', 1") has a guide which interacts with the at least one guiding element, wherein the guide can be expanded against a resetting force.
  2. The needle selecting device according to claim 1, characterized in that the selecting element (1, 1', 1") is fixed in height by the at least one guiding element.
  3. The needle selecting device according to claim 1 or claim 2, characterized in that the guide is formed by two legs (11, 12), wherein an upper leg (11) engages over at least one guiding element.
  4. The needle selecting device according to any one of the preceding claims, characterized in that the guide is formed as horizontal guide.
  5. The needle selecting device according to any one of the preceding claims, characterized in that the upper leg (11) or a connecting region (13) of the legs (11, 12) is formed in a flexurally elastic manner.
  6. The needle selecting device according to any one of the preceding claims, characterized in that two guiding elements are provided, and on one of the legs (11, 12), a projection (14) is provided which projects into the space between the guiding elements.
  7. The needle selecting device according to any one of the preceding claim, characterized in that the selecting element (1, 1', 1") is formed in a resilient manner in a region at its end remote from the needle.
  8. A knitting machine comprising a needle selecting device (100) according to any one of the preceding claims.
  9. The knitting machine according to claim 8, characterized in that the selecting element's (1, 1', 1") end remote from the needle comprises a leg (151) which is deflectable against a resetting force and which interacts with a cam part (84).
  10. The knitting machine according to any one of the preceding claims 8 or 9, characterized in that the selecting element (1, 1', 1") does not abut on a needle sinker (4) nor on a slide (3) interacting with the needle sinker (4).
  11. The knitting machine according to any one of the preceding claims 8 to 10, characterized in that the selecting element (1, 1', 1") and the slide (3) are arranged only one behind the other.
EP20080012752 2008-07-15 2008-07-15 Needle selection device Expired - Fee Related EP2145990B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20080012752 EP2145990B1 (en) 2008-07-15 2008-07-15 Needle selection device
DE200850002304 DE502008002304D1 (en) 2008-07-15 2008-07-15 Needle selection device
CN200910159386XA CN101629356B (en) 2008-07-15 2009-07-15 Needle selection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20080012752 EP2145990B1 (en) 2008-07-15 2008-07-15 Needle selection device

Publications (2)

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EP2145990A1 EP2145990A1 (en) 2010-01-20
EP2145990B1 true EP2145990B1 (en) 2011-01-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080012752 Expired - Fee Related EP2145990B1 (en) 2008-07-15 2008-07-15 Needle selection device

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EP (1) EP2145990B1 (en)
CN (1) CN101629356B (en)
DE (1) DE502008002304D1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5694792A (en) * 1995-06-15 1997-12-09 Shima Seiki Manufacturing, Ltd. Needle selection device of flat knitting machine
CN100368615C (en) * 2002-06-26 2008-02-13 株式会社岛精机制作所 Needle selection device of weft knitting machine

Also Published As

Publication number Publication date
EP2145990A1 (en) 2010-01-20
DE502008002304D1 (en) 2011-02-24
CN101629356B (en) 2011-11-16
CN101629356A (en) 2010-01-20

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