EP0607565B1 - Magnet system for a selection block on textile machines - Google Patents

Magnet system for a selection block on textile machines Download PDF

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Publication number
EP0607565B1
EP0607565B1 EP93120012A EP93120012A EP0607565B1 EP 0607565 B1 EP0607565 B1 EP 0607565B1 EP 93120012 A EP93120012 A EP 93120012A EP 93120012 A EP93120012 A EP 93120012A EP 0607565 B1 EP0607565 B1 EP 0607565B1
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EP
European Patent Office
Prior art keywords
magnet
control flap
selection block
housing
shell
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 - Lifetime
Application number
EP93120012A
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German (de)
French (fr)
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EP0607565A2 (en
EP0607565A3 (en
Inventor
Dietmar Harting
Ernst-Heinrich Dipl.-Ing. Harting
Wilhelm Gosewehr
Wolfgang Dipl.-Ing. Neuhaus
Michael Dipl.-Ing. Zwahr
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Harting Stiftung and Co KG
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Harting AG and Co KG
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Application filed by Harting AG and Co KG filed Critical Harting AG and Co KG
Publication of EP0607565A2 publication Critical patent/EP0607565A2/en
Publication of EP0607565A3 publication Critical patent/EP0607565A3/en
Application granted granted Critical
Publication of EP0607565B1 publication Critical patent/EP0607565B1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • H01F7/08Electromagnets; Actuators including electromagnets with armatures
    • H01F7/14Pivoting armatures
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/66Devices for determining or controlling patterns ; Programme-control arrangements
    • D04B15/68Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
    • D04B15/78Electrical devices

Definitions

  • the invention relates to a magnet system for a selection block in textile machines, especially bistable magnet system for needle selection, wherein a magnetic is used to select the needle assigned to the magnet system actuatable, rotatably mounted elongated control flap is provided, which is designed as an anchor of the respective magnet system, and which end of the control flap facing the magnet system with permanent magnetic Means is provided, and a selection block with such Magnet systems.
  • Knitting machines circular knitting and flat knitting machines
  • magnetic systems are provided for the selection of the needles, which are generally in so-called selection blocks are summarized.
  • a specific knitting pattern to knit must be certain at a time Knitting needles can be selected and other needles just Not.
  • the control of the selection means is modern Knitting machines made electronically, one speaks then from electronic needle selection.
  • the desired pattern is in an electronic memory filed and is when knitting the textile part read out, and the needles are over the interface of the selection block selected accordingly.
  • the selection block there are energy converters that convert electrical control signal into a mechanical one Change in position of those required for needle selection Control flaps that protrude from the selection block.
  • the selection blocks are generally of a number provided by control flaps, each control flap one Selection level served.
  • Each control flap is with one Control curve provided with needle or circuit board feet cooperates.
  • the control flap can have two positions take, namely the "basic position" non-selection and select the "working position".
  • the board feet run in the 'Non-select' position past the control flaps and are not touched. If a control flap is moved to the 'select' position, the assigned board foot runs on the control curve and is towards the knitting cylinder or needle bed pressed. Due to the change in position of the board mechanically the prerequisite is created that lifting (Select) the corresponding needle from the 'Do not knit' position to 'Knit' position or 'Catch' is accomplished.
  • control flaps in the Both positions are preferably small electric magnets used in the selection block.
  • Such a selection block is from EP-0 219 029-B1 known.
  • the known system is made up of a large number of small magnets, individual parts and Assemblies built that an assembly of the selection block design complex and cost-intensive.
  • FR-A-1 564 603 and also FR-A-2 093 555 is a magnet system known for a selection block in textile machines for needle selection, being magnetic for the selection of the needles assigned to the magnet system actuatable control flaps are provided, the armature in one piece are trained. It is also known from FR-A-1 564 603 that To design the magnet system bistable, the one facing the magnet system End of the control flaps or the armature with permanent magnetic Means is to be provided.
  • the invention is therefore based on the object of a magnet system of the type mentioned at the beginning that reduces the drive power required and thus the volume can be reduced. In doing so also a simple and inexpensive installation as well as a Reduction of the pitch distance in the case of adjacent ones Magnet systems can be achieved.
  • the magnet system one with an excitation winding provided, elongated magnetic core, which forms a control flap magnet region on the end face that the control flap is essentially in the axial direction of the magnetic core axis extends that that provided with the permanent magnetic means End of the control flap is arranged in front of the end face of the magnetic core, that a single permanent magnet is provided as the permanent magnetic means is, the direction of polarization parallel to the end face or transverse runs to the magnetic core axis, and that on both sides of the magnetic core and the control flap magnet area a pole piece is provided, which before the end of the magnetic core and the permanent magnet area the control flap extends and is connected in a magnetically conductive manner or is in one piece with the bottom of a half-shell housing, so that for the Return flow of the control flow is a closed soft magnetic return over the soft magnetic housing shell to the other, rear Side of the magnetic core is present.
  • the magnet system according to the invention also less wear and thus increased wear Lifespan.
  • Selection block 1 shown for a textile machine.
  • the selection block essentially consists of one cuboid housing in which several magnet systems are arranged, each control flap 2 for control of the needles of the textile machine.
  • control flaps protrude in the illustration of FIG. 1A on the left side of the selection block.
  • On the selection block is on the opposite side provided a connector 3 through which the electrical Signals for actuation / control of the individual Magnet systems are performed.
  • control flaps can each be in two different Positions are moved, in the illustration at the lower control flap the second possible position is indicated by dashed lines.
  • the front edge of the control flap covers a distance of approx. 2 mm.
  • the adjacent control flaps 2 are at a pitch distance P arranged of about 5 mm, mentioned here should be that even smaller distances easily possible are.
  • the selection block 1 consists essentially of two Half shells 4, 5, used in the magnet systems 6 are.
  • 2 is a section through the selection block 3
  • FIG. 3 shows a view the one half-shell 4 with the magnet systems used.
  • For better visibility of details 4 is a half-shell in perspective Shown view in which only one of the magnet systems is inserted.
  • the magnet systems 6 essentially consist of one with an iron core 7 provided bobbin 8 on the an excitation winding 9 is wound.
  • the magnet systems are form-fitting in corresponding recesses in the Half-shell inserted, with the lower end of the core magnetically conductive with the half-shell made of magnetic conductive material is connected.
  • In the front The area of the magnet system are lateral pole pieces 11 formed in the half-shell, which also serves as a stop serve for the movement of the control flap 2.
  • the control valve which is shown in FIGS. 5 A, B enlarged is rotatably supported on an axis 12, and her the end face 13 of the iron core 7 of the Magnetic system end is with a permanent magnet 14 provided.
  • the control flap 2 shown in FIGS. 5 A, B is manufactured as a stamped and bent part made of steel. She is with a cranked storage area 16 for receiving the Axis 12 and an angled area 17 on which the Control surfaces 15 are formed. The opposite The area of the control flap is overmouldable Contour with undercut 18 and hole 19 provided, onto which a plastic part 20 is injection molded. The plastic part is provided with a recess in which a permanent magnet is inserted and attached.
  • 6 A, B is a modified control valve 2 ' shown.
  • the plastic part 20 ' With the recess for receiving of the permanent magnet, as well as the bearing area 16 ' includes.
  • a Steel part 22 used (molded) that with the control surfaces 15 for controlling the needles of the knitting machine is provided.
  • the coil body 7 is a sectional view of the coil body 8 shown with the iron core 7 of the magnet system.
  • the coil body is made of plastic material injected and with molded locking tabs 23 and centering 24 provided when inserting the bobbin / of the magnet system in the recesses of the Snap the half-shell behind the corresponding locking shoulders and keep the magnet system positioned in the half shell.
  • the magnet systems are in a mutual in the half shells Distance of 2 P used. Then there are the magnet systems of a half shell around the pitch distance P offset to the magnet systems of the others Half-shell provided so that when the the two half shells the control flaps the total Have pitch pitch P. With this arrangement it is possible, the magnetic systems of a half shell for themselves ultimately considered at twice the distance Pitch distance P to be provided, thereby volume advantages arise for every magnet system.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Textile Engineering (AREA)
  • Power Engineering (AREA)
  • Knitting Machines (AREA)
  • Looms (AREA)

Description

Die Erfindung betrifft ein Magnetsystem für einen Selektionsblock in Textilmaschinen, insbesondere bistabiles Magnetsystem für die Nadelauswahl, wobei zur Auswahl der dem Magnetsystem zugeordneten Nadel eine magnetisch betätigbare, drehbar gelagerte Längliche Steuerklappe vorgesehen ist, die als Anker des jeweiligen Magnetsystemes ausgebildet ist, und wobei das dem Magnetsystem zugewandte Ende der Steuerklappe mit permanentmagnetischen Mitteln versehen ist, sowie einen Selektionsblock mit derartigen Magnetsystemen.The invention relates to a magnet system for a selection block in textile machines, especially bistable magnet system for needle selection, wherein a magnetic is used to select the needle assigned to the magnet system actuatable, rotatably mounted elongated control flap is provided, which is designed as an anchor of the respective magnet system, and which end of the control flap facing the magnet system with permanent magnetic Means is provided, and a selection block with such Magnet systems.

In modernen Strickmaschinen (Rundstrick- und Flachstrickmaschinen) sind zur Auswahl der Nadeln Magnetsysteme vorgesehen, die im allgemeinen in sogenannten Selektionsblöcken zusammengefaßt sind. Um ein bestimmtes Strickmuster zu stricken, müssen zu einem Zeitpunkt bestimmte Stricknadeln ausgewählt werden und andere Nadeln eben nicht. Die Ansteuerung der Auswahlmittel wird bei modernen Strickmaschinen elektronisch vorgenommen, man spricht dann von elektronischer Nadelauswahl.In modern knitting machines (circular knitting and flat knitting machines) magnetic systems are provided for the selection of the needles, which are generally in so-called selection blocks are summarized. A specific knitting pattern to knit must be certain at a time Knitting needles can be selected and other needles just Not. The control of the selection means is modern Knitting machines made electronically, one speaks then from electronic needle selection.

Das gewünschte Muster ist in einem elektronischen Speicher abgelegt und wird beim Stricken des Textilteiles ausgelesen, und die Nadeln werden über die Schnittstelle des Selektionsblockes entsprechend ausgewählt.The desired pattern is in an electronic memory filed and is when knitting the textile part read out, and the needles are over the interface of the selection block selected accordingly.

Im Selektionsblock befinden sich Energiewandler, die das elektrische Ansteuersignal umwandeln in eine mechanische Lageänderung der für die Nadelauswahl erforderlichen Steuerklappen, die aus dem Selektionsblock herausragen. In the selection block there are energy converters that convert electrical control signal into a mechanical one Change in position of those required for needle selection Control flaps that protrude from the selection block.

Die Selektionsblöcke sind im allgemeinen mit einer Anzahl von Steuerklappen versehen, wobei jede Steuerklappe eine Selektionsebene bedient. Jede Steuerklappe ist mit einer Steuerkurve versehen, die mit Nadel- bzw. Platinenfüßen zusammenwirkt. Die Steuerklappe kann dabei zwei Stellungen einnehmen, nämlich die "Grundstellung" Nichtselektieren und die "Arbeitsstellung" Selektieren.The selection blocks are generally of a number provided by control flaps, each control flap one Selection level served. Each control flap is with one Control curve provided with needle or circuit board feet cooperates. The control flap can have two positions take, namely the "basic position" non-selection and select the "working position".

In der Stellung 'Nichtselektieren' laufen die Platinenfüße an den Steuerklappen vorbei und werden nicht berührt. Wird eine Steuerklappe in die Stellung 'Selektieren' bewegt, läuft der zugeordnete Platinenfuß auf die Steuerkurve und wird in Richtung Strickzylinder bzw. Nadelbett gedrückt. Durch die so erfolgte Lageänderung der Platine wird mechanisch die Voraussetzung geschaffen, daß das Anheben (Selektieren) der entsprechenden Nadel aus der Stellung 'Nichtstricken' in die Stellung 'Stricken' bzw. 'Fangen' bewerkstelligt wird.The board feet run in the 'Non-select' position past the control flaps and are not touched. If a control flap is moved to the 'select' position, the assigned board foot runs on the control curve and is towards the knitting cylinder or needle bed pressed. Due to the change in position of the board mechanically the prerequisite is created that lifting (Select) the corresponding needle from the 'Do not knit' position to 'Knit' position or 'Catch' is accomplished.

Zum Antrieb und Positionieren der Steuerklappen in die beiden Stellungen werden vorzugsweise Elektro-Kleinmagnete im Selektionsblock verwendet.To drive and position the control flaps in the Both positions are preferably small electric magnets used in the selection block.

Ein derartiger Selektionsblock ist aus der EP-0 219 029-B1 bekannt.Such a selection block is from EP-0 219 029-B1 known.

Bei der Verwendung von Elektro-Kleinmagneten, die als in sich selbständige Magnetsysteme in den Selektionsblock eingesetzt sind, können jedoch nur relativ große Abstände der nebeneinander bzw. übereinander angeordneten Steuerklappen realisiert werden. Somit lassen sich bei dem bekannten System keine Klappenabstände (Pitch-Abstände) wesentlich kleiner als 5 mm realisieren.When using small electrical magnets that are considered in independent magnet systems in the selection block are used, but can only be relatively large distances the control flaps arranged side by side or one above the other will be realized. Thus, in the known System no flap distances (pitch distances) essential realize less than 5 mm.

Schließlich ist auch die für die Anwendung erforderliche elektromagnetische Leistungsfähigkeit der Antriebsmagnete (Kraft, Umschaltzeit, Verlustleistung, Lebensdauer) vom Volumen des Elektromagneten abhängig. Bei der Minimierung des Volumens eines optimal bemessenen Elektromagneten stößt man schnell an eine untere Grenze, die nicht mehr unterschritten werden kann, und es ist somit für eine bestimmte Anzahl von Selektionsebenen und für einen bestimmten Pitch-Abstand das Volumen des Selektionsblockes praktisch vorgegeben und kann nicht mehr ohne weiteres verringert werden.Finally, there is also the one required for the application electromagnetic performance of the drive magnets (Force, switching time, power loss, service life) from Volume of the electromagnet depends. When minimizing the volume of an optimally sized electromagnet you quickly reach a lower limit that no longer can be undercut, and it is therefore for a certain Number of selection levels and for a specific one Pitch distance is the volume of the selection block practically predetermined and can no longer easily be reduced.

Bei dem bekannten Selektionsblock sind für jedes Antriebssystem zwei Lagerstellen vorhanden, nämlich eine Lagerstelle des Magnetankers und eine Lagerstelle der jeweiligen Steuerklappe, in denen jeweils Reibungsverluste auftreten. Eine zusätzliche Reibstelle ist die Verbindungsstelle zwischen dem Magnetanker und der jeweiligen Steuerklappe, in denen jeweils Reibungsverluste auftreten. Durch das notwendige Spiel in den Lagerstellen und der Verbindungsstelle entsteht auch ein nicht unerhebliches Prellen der Steuerklappen beim Erreichen ihrer Endlagen. Dieses Prellen wirkt sich dabei umso stärker aus, je höher die Arbeitsgeschwindigkeit/ Taktfrequenz der Strickmaschine ist.In the known selection block are for each drive system two bearings available, namely one Bearing point of the magnet armature and a bearing point of the respective Control flap, each in which friction losses occur. An additional friction point is the connection point between the magnet armature and the respective Control flap in which friction losses occur. Because of the necessary play in the bearings and the connection point also creates a not inconsiderable one Bounce of the control flaps when they reach their end positions. This bouncing has an even stronger effect the higher the working speed / clock frequency of the Knitting machine is.

Daneben ist das bekannte System aus einer Vielzahl von speziell zu justierenden Kleinmagneten, Einzelteilen und Baugruppen aufgebaut, die eine Montage des Selektionsblockes aufwendig und kostenintensiv gestalten.In addition, the known system is made up of a large number of small magnets, individual parts and Assemblies built that an assembly of the selection block design complex and cost-intensive.

Aus der FR-A-1 564 603 und auch der FR-A-2 093 555 ist ein Magnetsystem für einen Selektionsblock in Textilmaschinen für die Nadelauswahl bekannt, wobei zur Auswahl der dem Magnetsystem zugeordneten Nadeln magnetisch betätigbare Steuerklappen vorgesehen sind, deren Anker einstückig ausgebildet sind. Dabei ist es aus der FR-A-1 564 603 auch bekannt, das Magnetsystem bistabil auszubilden, wobei das dem Magnetsystem zugewandte Ende der Steuerklappen bzw. der Anker mit permanentmagnetischen Mitteln zu versehen ist.FR-A-1 564 603 and also FR-A-2 093 555 is a magnet system known for a selection block in textile machines for needle selection, being magnetic for the selection of the needles assigned to the magnet system actuatable control flaps are provided, the armature in one piece are trained. It is also known from FR-A-1 564 603 that To design the magnet system bistable, the one facing the magnet system End of the control flaps or the armature with permanent magnetic Means is to be provided.

Der Erfindung liegt somit die Aufgabe zugrunde, ein Magnetsystem der eingangs genannten Art dahingehend auszubilden, daß die erforderliche Antriebsleistung reduziert und somit das Volumen verringert werden kann. Dabei soll auch eine einfache und kostengünstige Montage sowie eine Reduzierung des Pitch-Abstandes bei benachbart angeordneten Magnetsystemen erzielt werden.The invention is therefore based on the object of a magnet system of the type mentioned at the beginning that reduces the drive power required and thus the volume can be reduced. In doing so also a simple and inexpensive installation as well as a Reduction of the pitch distance in the case of adjacent ones Magnet systems can be achieved.

Diese Aufgabe wird dadurch gelöst, daß das Magnetsystem einen mit einer Erregerwicklung versehenen, länglichen Magnetkern aufweist, der Stirnseitig einen Steuerklappenmagnetbereich bildet, daß die Steuerklappe sich im wesentlichen in axialer Richtung der Magnetkernachse erstreckt, daß das mit den permanetmagnetischen Mitteln versehene Ende der Steuerklappe vor der Stirnseite des Magnetkernes angeordnet ist, daß als permanentmagnetisches Mittel ein einziger Permanentmagnet vorgesehen ist, dessen Polarisierungsrichtung parallel zur Stirnfläche bzw. quer zur Magnetkernachse verläuft, und daß zu beiden Seiten des Magnetkernes und des Steuerklappenmagnetbereiches je ein Polstück vorgesehen ist, das sich vor dem Ende des Magnetkernes und des Permanentmagnetbereiches der Steuerklappe erstreckt und weichmagnetisch leitend verbunden ist bzw. einstückig ist mit dem Boden eines Halbschalengehäuses, so daß für den Rückfluß des Steuerflusses ein geschlossener weichmagnetischer Rückschluß über die weichmagnetische Gehäuseschale zur anderen, hinteren Seite des Magnetkerns vorhanden ist.This object is achieved in that the magnet system one with an excitation winding provided, elongated magnetic core, which forms a control flap magnet region on the end face that the control flap is essentially in the axial direction of the magnetic core axis extends that that provided with the permanent magnetic means End of the control flap is arranged in front of the end face of the magnetic core, that a single permanent magnet is provided as the permanent magnetic means is, the direction of polarization parallel to the end face or transverse runs to the magnetic core axis, and that on both sides of the magnetic core and the control flap magnet area a pole piece is provided, which before the end of the magnetic core and the permanent magnet area the control flap extends and is connected in a magnetically conductive manner or is in one piece with the bottom of a half-shell housing, so that for the Return flow of the control flow is a closed soft magnetic return over the soft magnetic housing shell to the other, rear Side of the magnetic core is present.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 bis 4 näher erläutert.Further advantageous embodiments of the invention are explained in more detail in claims 2 to 4.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß durch den Fortfall einer Lagerstelle sowie der Verbindungsstelle zwischen Magnetanker und Steuerklappe die Reibungsverluste des Magnetsystemes entscheidend verringert werden, wodurch z.B. eine geringere Antriebsleistung zur Betätigung der jeweiligen Steuerklappe benötigt wird. Das bedeutet, daß letztendlich das Volumen des Magnetsystems verringert werden kann, wodurch wiederum kleinere Pitch-Abstände realisiert werden können. The advantages achieved with the invention are in particular in the fact that by eliminating a depository and the connection point between the magnet armature and Control flap the friction losses of the magnet system crucial can be reduced, e.g. a lesser Drive power for actuating the respective control flap is needed. That means ultimately that Volume of the magnet system can be reduced, which again smaller pitch distances can be realized.

Darüber hinaus weist das erfindungsgemäße Magnetsystem auch einen geringeren Verschleiß und somit eine erhöhte Lebensdauer auf.In addition, the magnet system according to the invention also less wear and thus increased wear Lifespan.

Daneben tritt durch die Verringerung der Anzahl der Lager/Verbindungsstellen auch ein geringeres Prellen der Steuerklappen auf, so daß das Magnetsystem mit höheren Taktfrequenzen betrieben werden kann.In addition, due to the reduction in the number of bearings / connection points also less bouncing Control flaps open, so that the magnet system with higher Clock frequencies can be operated.

Schließlich wird durch einen einfachen Aufbau des Magnetsystems bzw. eines kompletten Selektionsblockes auch eine Reduzierung der Montagekosten erzielt.Finally, a simple construction of the magnet system or a complete selection block too achieved a reduction in assembly costs.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen

Fig. 1 A,B,C
die Ansichten eines Selektionsblockes,
Fig. 2
die Ansicht des Selektionsblockes gem. Fig. 1 im Schnitt entlang der Linie 2-2,
Fig. 3
die Ansicht eines geöffneten SelektionsBlockes,
Fig. 4
die perspektivische Ansicht eines geöffneten Selektionsblockes,
Fig. 5 A,B
die Ansichten einer Steuerklappe,
Fig. 6 A,B
die Ansichten einer modifizierten Steuerklappe, und
Fig. 7
die Ansicht eines Spulenkörpers mit eingefügtem Magnetkern.
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it
Fig. 1A, B, C
the views of a selection block,
Fig. 2
the view of the selection block acc. 1 in section along the line 2-2,
Fig. 3
the view of an open selection block,
Fig. 4
the perspective view of an open selection block,
Fig. 5 A, B
the views of a control flap,
Fig. 6 A, B
the views of a modified control valve, and
Fig. 7
the view of a bobbin with inserted magnetic core.

In der Fig. 1 A,B,C ist in verschiedenen Ansichten ein Selektionsblock 1 für eine Textilmaschine dargestellt. Der Selektionsblock besteht im wesentlichen aus einem quaderförmigen Gehäuse, in dem mehrere Magnetsysteme angeordnet sind, die jeweils Steuerklappen 2 zur Steuerung der Nadeln der Textilmaschine beeinflussen.1A, B, C is in different views Selection block 1 shown for a textile machine. The selection block essentially consists of one cuboid housing in which several magnet systems are arranged, each control flap 2 for control of the needles of the textile machine.

Die Steuerklappen ragen in der Darstellung der Fig. 1 A auf der linken Seite des Selektionsblocks hervor. Auf der gegenüberliegenden Seite ist der Selektionsblock mit einem Steckverbinder 3 versehen, über den die elektrischen Signale zur Betätigung/Steuerung der einzelnen Magnetsysteme geführt werden.The control flaps protrude in the illustration of FIG. 1A on the left side of the selection block. On the selection block is on the opposite side provided a connector 3 through which the electrical Signals for actuation / control of the individual Magnet systems are performed.

Die Steuerklappen können jeweils in zwei verschiedene Stellungen bewegt werden, wobei in der Darstellung bei der unteren Steuerklappe die zweite mögliche Stellung gestrichelt angedeutet ist. Die Vorderkante der Steuerklappe legt dabei einen Weg von ca. 2 mm zurück.The control flaps can each be in two different Positions are moved, in the illustration at the lower control flap the second possible position is indicated by dashed lines. The front edge of the control flap covers a distance of approx. 2 mm.

Die benachbarten Steuerklappen 2 sind in einem Pitch-Abstand P von ca. 5 mm angeordnet, wobei hier erwähnt werden soll, daß auch noch kleinere Abstände ohne weiteres möglich sind.The adjacent control flaps 2 are at a pitch distance P arranged of about 5 mm, mentioned here should be that even smaller distances easily possible are.

Der Selektionsblock 1 besteht im wesentlichen aus zwei Halbschalen 4, 5, in die Magnetsysteme 6 eingesetzt sind. In der Fig. 2 ist ein Schnitt durch den Selektionsblock dargestellt, und die Fig. 3 zeigt eine Ansicht der einen Halbschale 4 mit den eingesetzten Magnetsystemen. Der besseren Erkennbarkeit von Einzelheiten halber ist in der Fig. 4 eine Halbschale in perspektivischer Ansicht dargestellt, in der lediglich eines der Magnetsysteme eingesetzt ist.The selection block 1 consists essentially of two Half shells 4, 5, used in the magnet systems 6 are. 2 is a section through the selection block 3, and FIG. 3 shows a view the one half-shell 4 with the magnet systems used. For better visibility of details 4 is a half-shell in perspective Shown view in which only one of the magnet systems is inserted.

Die Magnetsysteme 6 bestehen im wesentlichen aus einem mit einem Eisenkern 7 versehenen Spulenkörper 8, auf den eine Erregerwicklung 9 gewickelt ist. Die Magnetsysteme sind formschlüssig in entsprechende Aussparungen der Halbschale eingesetzt, wobei das untere Ende des Kernes magnetisch leitend mit der Halbschale, die aus magnetisch leitendem Material besteht, verbunden ist. Im vorderen Bereich des Magnetsystems sind seitliche Polstücke 11 in der Halbschale ausgebildet, die auch als Anschlag für die Bewegung der Steuerklappe 2 dienen. The magnet systems 6 essentially consist of one with an iron core 7 provided bobbin 8 on the an excitation winding 9 is wound. The magnet systems are form-fitting in corresponding recesses in the Half-shell inserted, with the lower end of the core magnetically conductive with the half-shell made of magnetic conductive material is connected. In the front The area of the magnet system are lateral pole pieces 11 formed in the half-shell, which also serves as a stop serve for the movement of the control flap 2.

Die Steuerklappe, die in den Fig. 5 A,B vergrößert dargestellt ist, ist auf einer Achse 12 drehbeweglich gelagert, und ihr der Stirnfläche 13 des Eisenkernes 7 des Magnetsystems zuweisendes Ende ist mit einem Permanentmagneten 14 versehen.The control valve, which is shown in FIGS. 5 A, B enlarged is rotatably supported on an axis 12, and her the end face 13 of the iron core 7 of the Magnetic system end is with a permanent magnet 14 provided.

Die Polarisierungsrichtung dieses Permanentmagneten verläuft dabei parallel zur Stirnfläche des Eisenkernes 7. Durch die Wirkung des Permanentmagneten wird das mit dem Permanentmagneten versehene Ende der Steuerklappe, das zwischen den beiden Polstücken 11 angeordnet ist, zunächst gegen eines der beiden Polstücke gezogen und verharrt dort aufgrund permanentmagnetischer Haftung. Durch eine Bestromung der Erregerwicklung des Magnetsystemes mit einem entsprechend gerichteten Strom wird eine der Haftung entgegengesetzte kraft erzeugt, die das mit dem Permanentmagneten versehene Ende der Steuerklappe in die gegenüberliegende Position treibt, wo es nach Abschaltung des Erregerstromes ebenfalls wieder permanentmagnetisch haftend verharrt. Das vordere, mit Steuerflächen 15 zu Steuerung der Nadeln versehene Ende der Steuerklappe wurde dabei von einer ersten Stellung in eine zweite Stellung bewegt.The direction of polarization of this permanent magnet runs parallel to the end face of the iron core 7. Due to the effect of the permanent magnet, that with the Permanent magnet end of the control flap, the is arranged between the two pole pieces 11, initially pulled against one of the two pole pieces and remains there there due to permanent magnetic liability. By energizing the excitation winding of the magnet system with an appropriately directed current becomes one of liability the opposite force is generated by the permanent magnet provided end of the control flap in the opposite position, where it is after The excitation current is also switched off again permanently magnetically clinging stuck. The front, with control surfaces 15 to control the needles provided end of The control flap was moved from a first position to moved to a second position.

Die in den Fig. 5 A,B dargestellte Steuerklappe 2 ist als Stanz-Biegeteil aus Stahl hergestellt. Sie ist mit einem gekröpften Lagerbereich 16 für die Aufnahme der Achse 12 und einem abgewinkelten Bereich 17, an dem die Steuerflächen 15 ausgebildet sind, versehen. Der gegenüberliegende Bereich der Steuerklappe ist mit einer umspritzfähigen Kontur mit Hinterschnitt 18 und Bohrung 19 versehen, an den ein Kunststoffteil 20 angespritzt ist. Das Kunststoffteil ist mit einer Ausnehmung versehen, in die ein Permanentmagnet eingefügt und befestigt ist.The control flap 2 shown in FIGS. 5 A, B is manufactured as a stamped and bent part made of steel. She is with a cranked storage area 16 for receiving the Axis 12 and an angled area 17 on which the Control surfaces 15 are formed. The opposite The area of the control flap is overmouldable Contour with undercut 18 and hole 19 provided, onto which a plastic part 20 is injection molded. The plastic part is provided with a recess in which a permanent magnet is inserted and attached.

In den Fig. 6 A,B ist eine modifizierte Steuerklappe 2' dargestellt. Hierbei ist ein aus Kunststoffmaterial spritztechnisch hergestellter Grundkörper 21 vorgesehen, der das Kunststoffteil 20' mit der Ausnehmung zur Aufnahme des Permanentmagneten, sowie den Lagerbereich 16' beinhaltet. Am vorderen Ende des Grundkörpers ist ein Stahlteil 22 eingesetzt (umspritzt), das mit den Steuerflächen 15 zur Steuerung der Nadeln der Strickmaschine versehen ist.6 A, B is a modified control valve 2 ' shown. Here is one made of plastic material basic body 21 produced by injection molding, the plastic part 20 'with the recess for receiving of the permanent magnet, as well as the bearing area 16 ' includes. At the front end of the body is a Steel part 22 used (molded) that with the control surfaces 15 for controlling the needles of the knitting machine is provided.

In der Fig. 7 ist in einer Schnittdarstellung der Spulenkörper 8 mit dem Eisenkern 7 des Magnetsystemes dargestellt. Der Spulenkörper ist aus Kunststoffmaterial gespritzt und mit angeformten Rastzungen 23 und Zentriermitteln 24 versehen, die beim Einsetzen des Spulenkörpers / des Magnetsystems in die Ausnehmungen der Halbschale hinter entsprechenden Rastschultern verrasten und das Magnetsystem in der Halbschale positioniert halten.7 is a sectional view of the coil body 8 shown with the iron core 7 of the magnet system. The coil body is made of plastic material injected and with molded locking tabs 23 and centering 24 provided when inserting the bobbin / of the magnet system in the recesses of the Snap the half-shell behind the corresponding locking shoulders and keep the magnet system positioned in the half shell.

Die Magnetsysteme sind in den Halbschalen in einem gegenseitigen Abstand von 2 P eingesetzt. Dabei sind dann die Magnetsysteme der einen Halbschale um den Pitch-Abstand P versetzt zu den Magnet systemen der anderen Halbschale vorgesehen, so daß beim Zusammenfügen der beiden Halbschalen die Steuerklappen insgesamt den Pitch-Abstand P aufweisen. Durch diese Anordnung ist es möglich, die Magnetsysteme einer Halbschale für sich betrachtet im doppelten Abstand als dem letztendlich erzielten Pitch-Abstand P vorzusehen, wodurch Volumenvorteile für jedes Magnetsystem entstehen.The magnet systems are in a mutual in the half shells Distance of 2 P used. Then there are the magnet systems of a half shell around the pitch distance P offset to the magnet systems of the others Half-shell provided so that when the the two half shells the control flaps the total Have pitch pitch P. With this arrangement it is possible, the magnetic systems of a half shell for themselves ultimately considered at twice the distance Pitch distance P to be provided, thereby volume advantages arise for every magnet system.

Claims (4)

  1. Magnet system (6) for a selection block (1) in textile machines, wherein there is provided, for selecting the needle associated with the magnet system (6), a magnetically actuatable, rotatably mounted, elongated control flap (2, 2') which is constructed as the armature of the particular magnet system, and wherein that end of the control flap which faces towards the magnet system is provided with permanently magnetic means (14),
    characterised in that
    the magnet system (6) has an elongated magnet core (7) which is provided with an exciter winding (9) and forms, at its end face, a control flap magnet region, that the control flap (2, 2') extends substantially in the axial direction of the magnet core axis, that that end of the control flap which is provided with the permanently magnetic means is disposed in front of the end face (13) of the magnet core (7), that there is provided, as the permanently magnetic means, a single permanent magnet (14), the direction of polarisation of which runs parallel to the end face (13) or transversely to the magnet core axis, and that there is provided, on either side of the magnet core (7) and of the control flap magnet region, a pole piece (11) in each case which extends in front of the end of the magnet core and of the permanent magnet region of the control flap and is connected in a mildly magnetically conductive manner to, or is in one piece with, the bottom of a half-shell housing (4, 5), so that there exists, for the return flow of the control flux, a closed, mildly magnetic return path via the mildly magnetic housing shell (4, 5) to the other, rear side of the magnet core (7).
  2. Selection block with magnet systems according to claim 1 disposed in a housing, characterised in that
    the housing is constructed as a half-shell (4, 5) and that the magnet systems (6) of the half-shell (4, 5) are capable of functioning on their own.
  3. Selection block with magnet systems according to claim 1 disposed in a housing, characterised in that
    the housing consists of two half-shells (4, 5), each partial shell containing driving assemblies which are at a distance from each other and which are inserted between the driving assemblies of the other partial shell in an alternating manner in each case when the partial shells are joined together.
  4. Selection block according to one of the preceding claims, characterised in that
    the housing is manufactured from magnetically conductive material.
EP93120012A 1993-01-08 1993-12-11 Magnet system for a selection block on textile machines Expired - Lifetime EP0607565B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4300291 1993-01-08
DE4300291A DE4300291C2 (en) 1993-01-08 1993-01-08 Magnet system for a selection block in textile machines

Publications (3)

Publication Number Publication Date
EP0607565A2 EP0607565A2 (en) 1994-07-27
EP0607565A3 EP0607565A3 (en) 1995-05-31
EP0607565B1 true EP0607565B1 (en) 1999-03-17

Family

ID=6477860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93120012A Expired - Lifetime EP0607565B1 (en) 1993-01-08 1993-12-11 Magnet system for a selection block on textile machines

Country Status (6)

Country Link
US (1) US5408852A (en)
EP (1) EP0607565B1 (en)
JP (1) JP2690453B2 (en)
KR (1) KR0122863B1 (en)
DE (2) DE4300291C2 (en)
TW (1) TW265429B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19827150A1 (en) * 1998-06-18 1999-12-23 Wilhelm Gosewehr Needle selection mechanism for a knitter
CN100460580C (en) * 2006-06-29 2009-02-11 冯加林 Electromagnet for controlling shuttle box of weft machine
CN102560862A (en) * 2012-01-13 2012-07-11 东莞市沃德电子科技有限公司 Needle selector of flat knitting machine
CN103924375A (en) * 2014-04-30 2014-07-16 龙金禄 Eight-blade high-frequency electromagnet driving type needle selector
CN104532464B (en) * 2015-01-21 2016-08-24 唐山雾谷机电设备有限公司 The driver of slide cam selector
CN111020852A (en) * 2019-12-24 2020-04-17 常熟长润智能科技有限公司 Needle selection piece fixing structure and control method thereof
CN112853596A (en) * 2020-12-30 2021-05-28 福建海睿达科技有限公司 Textile apparatus, control method thereof, and storage medium

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1635848C3 (en) * 1967-03-06 1978-11-23 Mayer & Cie Gmbh & Co, 7470 Albstadt Pattern device for circular knitting machines with rotating needle carriers
GB1187911A (en) * 1968-02-16 1970-04-15 Wildt Mellor Bromley Ltd Improved Patterning Mechanism for Knitting Machines.
GB1344078A (en) * 1970-05-22 1974-01-16 Wildt Mellor Bromley Ltd Patterning mechanisms for knitting machines
IT1185431B (en) * 1985-10-14 1987-11-12 Lonati Spa DEVICE FOR THE SELECTION OF NEEDLES IN A KNITTING MACHINE, IN PARTICULAR FOR SOCKS
IT1196477B (en) * 1986-07-08 1988-11-16 Lonati Spa NEEDLE SELECTION DEVICE IN A CIRCULAR KNITTING MACHINE, IN PARTICULAR FOR SOCKS
IT1235780B (en) * 1987-02-16 1992-10-16 Lonati Spa DEVICE FOR THE SELECTION OF NEEDLES IN CIRCULAR MACHINES FOR BUTTONS, SHOES AND SIMILAR
ES2003000A6 (en) * 1987-03-17 1988-10-01 Jumberca Sa Needle selection system for a circular knitting machine.
US5046334A (en) * 1987-10-07 1991-09-10 Nagata Seiki Kabushiki Kaisha Electromagnetic needle selector for circular knitting machines
US4972686A (en) * 1987-10-07 1990-11-27 Nagata Seiki Kabushiki Kaisha Electromagnetic needle selector for circular knitting machines
GB2229198B (en) * 1989-03-15 1992-09-09 Nagata Seiki Kk Piezoelectric needle selector in a circular knitting machine
IT1229699B (en) * 1989-05-11 1991-09-07 Savio Spa NEEDLE SELECTOR DEVICE IN A CIRCULAR KNITTING MACHINE USING LOW INERTIA AND ELECTROMAGNETIC CONTROL LEVERS.
DE4213764C1 (en) * 1992-04-27 1993-10-07 Harting Elektronik Gmbh Magnet system for needle selection in textile machines

Also Published As

Publication number Publication date
DE4300291C2 (en) 1996-09-05
KR0122863B1 (en) 1997-11-27
EP0607565A2 (en) 1994-07-27
JPH06212541A (en) 1994-08-02
US5408852A (en) 1995-04-25
EP0607565A3 (en) 1995-05-31
DE4300291A1 (en) 1994-07-14
DE59309460D1 (en) 1999-04-22
JP2690453B2 (en) 1997-12-10
TW265429B (en) 1995-12-11

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