EP4067546B1 - Warp knitting tool bar - Google Patents

Warp knitting tool bar Download PDF

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Publication number
EP4067546B1
EP4067546B1 EP21166460.2A EP21166460A EP4067546B1 EP 4067546 B1 EP4067546 B1 EP 4067546B1 EP 21166460 A EP21166460 A EP 21166460A EP 4067546 B1 EP4067546 B1 EP 4067546B1
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EP
European Patent Office
Prior art keywords
longitudinal
transverse
segment
tool bar
projection
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EP21166460.2A
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German (de)
French (fr)
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EP4067546A1 (en
Inventor
Günter Schuler
Steffen Kaufhold
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Karl Mayer Stoll R&D GmbH
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Karl Mayer Stoll R&D GmbH
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Priority to EP21166460.2A priority Critical patent/EP4067546B1/en
Priority to CN202210329949.0A priority patent/CN115142186B/en
Publication of EP4067546A1 publication Critical patent/EP4067546A1/en
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Publication of EP4067546B1 publication Critical patent/EP4067546B1/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/10—Devices for supplying, feeding, or guiding threads to needles
    • D04B27/24—Thread guide bar assemblies
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/06—Needle bars; Sinker bars

Definitions

  • the present invention relates to a knitting tool bar according to the preamble of claim 1.
  • Such a knitting tool bar is made, for example EP 2 623 652 A1 known.
  • the segments have grooves into which knitting tools can be inserted.
  • a segment extends in the longitudinal direction of the body by a maximum of 7.62 cm (three inches), preferably a maximum of 5.08 cm (2 inches) and in particular a maximum of 2.54 cm (one inch).
  • the interaction of the transverse formation and counter-transverse formation secures a position of the segment in the longitudinal direction of the body and thus the positions of the knitting tools accommodated in the grooves of the segment.
  • the individual segments can have a small distance from one another, so that the length of each segment can change under the influence of temperature without changing the positions of the knitting tools beyond a permissible level.
  • a knitting tool bar of a warp knitting machine is to be equipped with knitting tools or knitting tools of the knitting tool bar have to be exchanged, then a relatively complex alignment of the knitting tools is required. The time required to align the knitting tools is not available for the production of a knitted fabric and therefore reduces the productivity of the warp knitting machine.
  • a bar has a largely flat contact surface in which several wall surfaces are arranged in the form of bores.
  • a tool module with a module body can be brought into contact with the contact surface.
  • the module body has several pins protruding from the back, that can enter the bores.
  • the pins form contact surfaces which are separated from a contact surface arranged on the back of the module body by a groove.
  • the module body has a rectangular projection which can be brought into contact with the upper side of the bar.
  • U.S. 2,902,847 A describes a needle holder for a warp knitting machine.
  • a bar has a longitudinal groove into which a segment called a needle holder is inserted.
  • the needle holder carries multiple needles.
  • the needles are held in the needle holder by holding means formed by a spring plate.
  • the needle holder with the needles is clamped to the bar by a cover that is attached to the bar with a screw.
  • U.S. 6,116,173 A describes a module and a bar for tufting tools on which tufting needles are attached by being cast into a base body.
  • the base body has a T-shaped projection with a horizontal ridge and a vertical ridge.
  • the bar has a longitudinal groove from which transverse grooves extend.
  • the base body has two transverse grooves which are separated from one another by a projection, or the base body has a U-shaped recess on its upper side and a longitudinal groove in the region of its underside.
  • the U-shaped recess can also be replaced by an elongated hole.
  • GB 2 266 537 A shows modular elements of a tufting machine, thus does not disclose a knitting tool bar.
  • the tufting machine has two needle bars on which needle mounting blocks or gripper blocks or reed support blocks can be placed.
  • the respective blocks have on their rear side facing the needle bars T-shaped projections, of which a vertical web in a vertical groove on the Needle bars can occur while the horizontally extending web can rest on the underside or on the top of the respective needle bar.
  • the invention is based on the object of designing a knitting tool bar in such a way that a warp knitting machine can be operated with high productivity.
  • a longitudinal formation running in the longitudinal direction is provided in the contact surface, with at least one segment having a counter-longitudinal formation that interacts with the longitudinal formation.
  • the segment can then be positioned very precisely not only in the longitudinal direction in a simple manner.
  • the interaction of the transverse formation and counter-transverse formation is responsible for this positioning.
  • the segment is also positioned very precisely transversely to the longitudinal direction.
  • the interaction of longitudinal and counter-longitudinal shaping is responsible for this.
  • the knitting tools that are accommodated in the segment are then in turn positioned with a very high level of accuracy in the longitudinal and transverse directions of the bar, so that subsequent straightening can be carried out with less effort or, in the best case, can even be omitted entirely.
  • the longitudinal projection is designed as a longitudinal groove in the contact surface and the counter-longitudinal projection as a longitudinal projection on the segment.
  • the longitudinal projection then enters the longitudinal groove during assembly of the segment on the contact surface.
  • a longitudinal groove can be produced relatively easily during the manufacture of the body, particularly in the case of knitting tool bars whose body is formed from a fiber-reinforced plastic.
  • the transverse formation is designed as a transverse groove and the counter-transverse formation as a transverse projection on the segment. This is an easy way to form the two lofts.
  • the transverse projection is spaced a predetermined distance from the longitudinal projection. This also allows material to be saved within certain limits.
  • the segment preferably has a needle foot receptacle and the projection is arranged in the area of the needle foot receptacle.
  • the knitting tools that are held in the segment are designed as knitting needles, for example, they usually have a needle butt.
  • the needle butt enters the needle butt receptacle and prevents the knitting needle from moving in the direction is pulled out of the segment along its length.
  • the needle butt seat forms a depression that results in a slight weakening of the segment. If, however, the projection is arranged in the area of the needle foot receptacle, then this weakening of the segment is at least partially compensated.
  • the projection and the needle butt receptacles preferably at least partially overlap in a direction transverse to the longitudinal direction.
  • the projection overlaps the needle butt receptacle at the edge that faces the side of the segment from which the knitting tools protrude. This avoids “hinging” in the segment and makes the segment strong enough for easy assembly.
  • the segment is preferably held on the contact surface by at least one clamping cover, the clamping cover being fastened to the body with at least one screw which is screwed into a screw-in area.
  • the clamping cover in cooperation with the screw, then presses the segment against the contact surface and thus prevents the transverse and counter-transverse projections and the longitudinal and counter-longitudinal projections from being able to separate from one another.
  • the screw-in area is preferably higher than the contact surface. This means that more material is available here for screwing in the screw, which is advantageous for securely holding the screw.
  • the longitudinal groove is preferably at a predetermined distance from the screw-in area. This makes it possible to support the segment on both sides of the longitudinal groove on the body.
  • the transverse groove preferably merges into the longitudinal groove. This allows you to reduce the mass of the body somewhat.
  • the lower the mass of the corpus the lower the forces required to accelerate and decelerate the corpus. Such acceleration and deceleration is required in every knitting operation. The lower the forces, the faster the warp knitting machine equipped with the knitting tool bar can be operated.
  • the predetermined distance is greater than the transverse width of the longitudinal projection. It is also advantageous that the transverse projection has a length transverse to the longitudinal direction that is greater than half the length of the segment transverse to the longitudinal direction.
  • the material saving due to the shortened length of the transverse projection is used to save weight, but on the other hand it is ensured that the segment cannot be pivoted in relation to the longitudinal direction.
  • the longitudinal groove is designed as a continuous groove over the length of the body. On the one hand, this simplifies the manufacture of the body. On the other hand, material is again saved, which keeps the mass of the body small.
  • the transverse groove is open towards a longitudinal edge of the body. This makes it easier to bring the segment into contact with the contact surface of the body. You can thread the segment with the transverse projection into the transverse groove and then swing the segment down onto the contact surface until the longitudinal projection enters the longitudinal groove.
  • At least one segment is preferably preloaded with knitting tools.
  • the segment can then be loaded in an automatic loading machine, which can simultaneously adjust the knitting tools in the segment.
  • the pre-assembled segment can then be mounted on the knitting tool bar. Due to the double fixation of the segment in the longitudinal direction and in the transverse direction, the knitting tools then automatically have their correct position.
  • the figures show a knitting tool bar 1 of a warp knitting machine with a body 2 which has a longitudinal direction 3 which is represented by a double arrow.
  • the knitting tool bar 1 has a knitting tool holder which has a plurality of segments 4 that are separate from one another. The segments 4 rest against a contact surface 5 of the body 2 ( 6 ).
  • transverse grooves 6 In the contact surface 5 several transverse formations are formed in the form of transverse grooves 6 ( Figures 3 and 4 ).
  • Each segment 4 has a counter-transverse formation in the form of a transverse projection 7 ( Figures 1 and 2 ).
  • the transverse groove 6 and the transverse projection 7 run transversely to the longitudinal direction 3, ie in the transverse direction.
  • the width of the transverse projection 7 is adapted to the width of the transverse groove 6 .
  • the body 2 also has a longitudinal formation in the contact surface 5 , which is designed as a longitudinal groove 8 .
  • each segment has a counter-longitudinal projection in the form of a longitudinal projection 9 .
  • the longitudinal groove 8 and the longitudinal projection 9 run in the longitudinal direction 3.
  • the longitudinal projection 9 is adapted to the longitudinal groove 8.
  • the segment 4 has a needle foot receptacle 10 into which a needle foot 11 of a knitting tool, which is shown here in figure 5 is shown as a knitting needle 12 occur can.
  • the needle butt 11 ensures that the knitting needle 12 can be pulled out of the segment 4 in the direction of its longitudinal extension.
  • the longitudinal projection 9 and the needle butt receptacle 10 partially overlap.
  • the longitudinal projection overlaps the side of the needle butt receptacle on which the needle butt 11 of the knitting needle 12 rests.
  • the segment 4 is held on the contact surface 5 by a clamping cover 13 .
  • the clamp cover 13 is attached to the body with a screw 14 .
  • the screw 14 is screwed into a screw-in area 15 .
  • the screw-in area 15 is increased relative to the contact surface, ie it has a spacing transversely to the longitudinal direction 3 and transversely to the transverse direction.
  • a distance 16 is provided between the screw-in area 15 and the longitudinal groove 8 , which can also be regarded as part of the contact surface 5 .
  • a region 17 of the segment 4 can be placed at this distance 16 , so that the segment 4 can lie against the body 2 on both sides of the longitudinal groove 8 .
  • the transverse groove 6 merges into the longitudinal groove 8.
  • the transverse projection 7 is arranged at a predetermined distance A from the longitudinal projection 9 .
  • the distance A is greater than the width of the longitudinal projection 9 in the transverse direction, i.e. transverse to the longitudinal direction 3.
  • the transverse projection 7 has a length transverse to the longitudinal direction 3 which is greater than half the length of the segment 4 transverse to the longitudinal direction 3 the transverse projection 7 is a sufficiently reliable insurance against twisting of the segment 4 relative to the body 2.
  • the longitudinal groove 8 is designed as a continuous groove over the length of the body.
  • the transverse groove 6 is open towards a longitudinal edge of the body 2 .
  • the segment 4 is preferably preloaded with knitting tools, i.e. the segment 4 can be provided with knitting needles 12 (or other knitting tools) before it is mounted on the body 2 of the knitting tool bar 1 . It is thus possible to insert the knitting tools into the segment 4 by means of an automatic placement machine, in which case the automatic placement machine can also take on the task of straightening the knitting tools at the same time.
  • the knitting tools then have a clearly defined position in segment 4.
  • segment 4 on the body 2 of the bar also has a precisely defined position, so that the Knitting tools in turn can take a precise positioning on the body 2 of the knitting tool bar 1. A straightening following the mounting can then be omitted or can at least be carried out with less effort.

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

Description

Die vorliegende Erfindung betrifft eine Wirkwerkzeugbarre nach dem Oberbegriff des Anspruchs 1.The present invention relates to a knitting tool bar according to the preamble of claim 1.

Eine derartige Wirkwerkzeugbarre ist beispielsweise aus EP 2 623 652 A1 bekannt. Die Segmente weisen Nuten auf, in die Wirkwerkzeuge eingesetzt werden können. Ein Segment hat dabei eine Erstreckung in Längsrichtung des Korpus, die maximal 7,62 cm (drei Zoll), vorzugsweise maximal 5,08 cm (2 Zoll) und insbesondere maximal 2,54 cm (ein Zoll) beträgt. Das Zusammenwirken von Querausformung und Gegenquerausformung sichert eine Position des Segments in Längsrichtung des Korpus und damit die Positionen der in den Nuten des Segments aufgenommenen Wirkwerkzeuge. Die einzelnen Segmente können einen kleinen Abstand zueinander aufweisen, so dass sich die Länge eines jeden Segments unter Temperatureinflüssen verändern kann, ohne die Positionen der Wirkwerkzeuge über ein zulässiges Maß hinaus zu verändern.Such a knitting tool bar is made, for example EP 2 623 652 A1 known. The segments have grooves into which knitting tools can be inserted. A segment extends in the longitudinal direction of the body by a maximum of 7.62 cm (three inches), preferably a maximum of 5.08 cm (2 inches) and in particular a maximum of 2.54 cm (one inch). The interaction of the transverse formation and counter-transverse formation secures a position of the segment in the longitudinal direction of the body and thus the positions of the knitting tools accommodated in the grooves of the segment. The individual segments can have a small distance from one another, so that the length of each segment can change under the influence of temperature without changing the positions of the knitting tools beyond a permissible level.

Wenn eine Wirkwerkzeugbarre einer Kettenwirkmaschine mit Wirkwerkzeugen bestückt werden soll oder Wirkwerkzeuge der Wirkwerkzeugbarre ausgetauscht werden müssen, ist anschließend ein relativ aufwändiges Ausrichten der Wirkwerkzeuge erforderlich. Die Zeit, die zum Ausrichten der Wirkwerkzeuge erforderlich ist, steht für eine Produktion einer Wirkware nicht zur Verfügung und mindert daher die Produktivität der Kettenwirkmaschine.If a knitting tool bar of a warp knitting machine is to be equipped with knitting tools or knitting tools of the knitting tool bar have to be exchanged, then a relatively complex alignment of the knitting tools is required. The time required to align the knitting tools is not available for the production of a knitted fabric and therefore reduces the productivity of the warp knitting machine.

DE 20 2012 104 948 U1 zeigt ein Werkzeugmodul für eine Textilmaschine. Eine Barre weist eine weitgehend ebene Anlagefläche auf, in der mehrere Wandungsflächen in Form von Bohrungen angeordnet sind. An die Anlagefläche kann ein Werkzeugmodul mit einem Modulkörper zur Anlage gebracht werden. Der Modulkörper weist mehrere von der Rückseite vorspringende Zapfen auf, die in die Bohrungen eintreten können. Die Zapfen bilden Anlageflächen, die von einer an der Rückseite des Modulkörpers angeordneten Anlagefläche durch eine Nut getrennt sind. Der Modulkörper weist an seinem oberen Ende einen Rechteckvorsprung auf, der an der Oberseite der Barre zur Anlage gebracht werden kann. DE 20 2012 104 948 U1 shows a tool module for a textile machine. A bar has a largely flat contact surface in which several wall surfaces are arranged in the form of bores. A tool module with a module body can be brought into contact with the contact surface. The module body has several pins protruding from the back, that can enter the bores. The pins form contact surfaces which are separated from a contact surface arranged on the back of the module body by a groove. At its upper end, the module body has a rectangular projection which can be brought into contact with the upper side of the bar.

US 2 902 847 A beschreibt einen Nadelhalter für eine Kettenwirkmaschine. Eine Barre weist eine Längsnut auf, in die ein als Nadelhalter bezeichnetes Segment eingesetzt ist. Der Nadelhalter trägt mehrere Nadeln. Die Nadeln sind im Nadelhalter durch ein Federblech gebildetes Haltemittel gehalten. Der Nadelhalter mit den Nadeln wird durch einen Deckel an der Barre festgespannt, der mit einer Schraube an der Barre befestigt ist. U.S. 2,902,847 A describes a needle holder for a warp knitting machine. A bar has a longitudinal groove into which a segment called a needle holder is inserted. The needle holder carries multiple needles. The needles are held in the needle holder by holding means formed by a spring plate. The needle holder with the needles is clamped to the bar by a cover that is attached to the bar with a screw.

US 6 116 173 A beschreibt ein Modul und eine Barre für Tuftingwerkzeuge, an der Tuftingnadeln befestigt sind, indem sie in einen Grundkörper eingegossen sind. Der Grundkörper weist einen T-förmigen Vorsprung mit einem horizontalen Steg und einen vertikalen Steg auf. Die Barre weist eine Längsnut auf, aus der heraus sich Quernuten erstrecken. In alternativen Ausgestaltungen weist der Grundkörper zwei Quernuten auf, die durch einen Vorsprung voneinander getrennt sind oder der Grundkörper weist eine U-förmige Ausnehmung an seiner Oberseite und eine Längsnut im Bereich seiner Unterseite auf. Die U-förmige Ausnehmung kann auch durch eine längliche Bohrung ersetzt werden. U.S. 6,116,173 A describes a module and a bar for tufting tools on which tufting needles are attached by being cast into a base body. The base body has a T-shaped projection with a horizontal ridge and a vertical ridge. The bar has a longitudinal groove from which transverse grooves extend. In alternative configurations, the base body has two transverse grooves which are separated from one another by a projection, or the base body has a U-shaped recess on its upper side and a longitudinal groove in the region of its underside. The U-shaped recess can also be replaced by an elongated hole.

GB 2 266 537 A zeigt modulare Elemente einer Tuftingmaschine, offenbart also nicht eine Wirkwerkzeugbarre. Die Tuftingmaschine weist zwei Nadelstangen auf, an denen Nadelmontageblöcke oder Greifer-Blöcke oder Riet-Trägerblöcke angeordnet werden können. Die jeweiligen Blöcke weisen an ihrer den Nadelstangen zugewandten Rückseite T-förmige Vorsprünge auf, von denen ein jeweils vertikal verlaufender Steg in eine vertikal verlaufende Nut an den Nadelstangen eintreten kann, während der horizontal verlaufende Steg an der Unterseite bzw. an der Oberseite der jeweiligen Nadelstange anliegen kann. GB 2 266 537 A shows modular elements of a tufting machine, thus does not disclose a knitting tool bar. The tufting machine has two needle bars on which needle mounting blocks or gripper blocks or reed support blocks can be placed. The respective blocks have on their rear side facing the needle bars T-shaped projections, of which a vertical web in a vertical groove on the Needle bars can occur while the horizontally extending web can rest on the underside or on the top of the respective needle bar.

Der Erfindung liegt die Aufgabe zugrunde, eine Wirkwerkzeugbarre so auszubilden, dass eine Kettenwirkmaschine mit hoher Produktivität betrieben werden kann.The invention is based on the object of designing a knitting tool bar in such a way that a warp knitting machine can be operated with high productivity.

Hierzu ist vorgesehen, dass in der Anlagefläche eine in Längsrichtung verlaufende Längsausformung vorgesehen ist, wobei mindestens ein Segment eine mit der Längsausformung zusammenwirkende Gegenlängsausformung aufweist.For this purpose, it is provided that a longitudinal formation running in the longitudinal direction is provided in the contact surface, with at least one segment having a counter-longitudinal formation that interacts with the longitudinal formation.

Das Segment kann dann auf einfache Weise nicht nur in Längsrichtung sehr genau positioniert werden. Für diese Positionierung ist das Zusammenwirken von Querausformung und Gegenquerausformung verantwortlich. Das Segment wird auch quer zur Längsrichtung sehr genau positioniert. Hierzu ist das Zusammenwirken von Längsausformung und Gegenlängsausformung verantwortlich. Die Wirkwerkzeuge, die in dem Segment aufgenommen sind, sind dann wiederum mit einer sehr hohen Genauigkeit in Längs- und Querrichtung der Barre positioniert, so dass ein nachfolgendes Richten mit verringertem Aufwand durchgeführt werden kann oder im günstigsten Fall sogar vollkommen entfallen kann.The segment can then be positioned very precisely not only in the longitudinal direction in a simple manner. The interaction of the transverse formation and counter-transverse formation is responsible for this positioning. The segment is also positioned very precisely transversely to the longitudinal direction. The interaction of longitudinal and counter-longitudinal shaping is responsible for this. The knitting tools that are accommodated in the segment are then in turn positioned with a very high level of accuracy in the longitudinal and transverse directions of the bar, so that subsequent straightening can be carried out with less effort or, in the best case, can even be omitted entirely.

Die Längsausformung ist als Längsnut in der Anlagefläche und die Gegenlängsausformung als Längsvorsprung am Segment ausgebildet. Der Längsvorsprung tritt dann bei der Montage des Segments an der Anlagefläche in die Längsnut ein. Eine Längsnut lässt sich insbesondere bei Wirkwerkzeugbarren, deren Korpus aus einem faserverstärkten Kunststoff gebildet ist, relativ einfach bereits bei der Herstellung des Korpus erzeugen.The longitudinal projection is designed as a longitudinal groove in the contact surface and the counter-longitudinal projection as a longitudinal projection on the segment. The longitudinal projection then enters the longitudinal groove during assembly of the segment on the contact surface. A longitudinal groove can be produced relatively easily during the manufacture of the body, particularly in the case of knitting tool bars whose body is formed from a fiber-reinforced plastic.

Die Querausformung ist als Quernut und die Gegenquerausformung als Quervorsprung am Segment ausgebildet. Dies ist eine einfache Möglichkeit, um die beiden Ausformungen zu bilden.The transverse formation is designed as a transverse groove and the counter-transverse formation as a transverse projection on the segment. This is an easy way to form the two lofts.

Der Quervorsprung ist mit einem vorbestimmten Abstand zum Längsvorsprung angeordnet. Auch damit lässt sich in gewissen Grenzen Material einsparen.The transverse projection is spaced a predetermined distance from the longitudinal projection. This also allows material to be saved within certain limits.

Vorzugsweise weist das Segment eine Nadelfußaufnahme auf und der Vorsprung ist im Bereich der Nadelfußaufnahme angeordnet. Wenn die Wirkwerkzeuge, die in dem Segment gehalten sind, beispielsweise als Wirknadeln ausgebildet sind, weisen sie in der Regel einen Nadelfuß auf. Der Nadelfuß tritt in die Nadelfußaufnahme ein und sichert dagegen, dass die Wirknadel in Richtung ihrer Längserstreckung aus dem Segment herausgezogen wird. Die Nadelfußaufnahme bildet eine Vertiefung, die zu einer leichten Schwächung des Segments führt. Wenn man allerdings den Vorsprung im Bereich der Nadelfußaufnahme anordnet, dann wird diese Schwächung des Segments zumindest teilweise kompensiert.The segment preferably has a needle foot receptacle and the projection is arranged in the area of the needle foot receptacle. If the knitting tools that are held in the segment are designed as knitting needles, for example, they usually have a needle butt. The needle butt enters the needle butt receptacle and prevents the knitting needle from moving in the direction is pulled out of the segment along its length. The needle butt seat forms a depression that results in a slight weakening of the segment. If, however, the projection is arranged in the area of the needle foot receptacle, then this weakening of the segment is at least partially compensated.

Vorzugsweise überlappen sich der Vorsprung und die Nadelfußaufnahmen in einer Richtung quer zur Längsrichtung zumindest teilweise. Insbesondere kann hier vorgesehen sein, dass der Vorsprung die Nadelfußaufnahme an dem Rand überlappt, der der Seite des Segments zugewandt ist, aus dem die Wirkwerkzeuge vorstehen. Dadurch wird eine "Scharnierbildung" im Segment vermieden und das Segment wird stabil genug, um es auf einfache Weise montieren zu können.The projection and the needle butt receptacles preferably at least partially overlap in a direction transverse to the longitudinal direction. In particular, it can be provided here that the projection overlaps the needle butt receptacle at the edge that faces the side of the segment from which the knitting tools protrude. This avoids "hinging" in the segment and makes the segment strong enough for easy assembly.

Vorzugsweise ist das Segment durch mindestens einen Klemmdeckel an der Anlagefläche gehalten, wobei der Klemmdeckel mit mindestens einer Schraube am Korpus befestigt ist, die in einen Einschraubbereich eingeschraubt ist. Der Klemmdeckel im Zusammenwirken mit der Schraube presst dann das Segment gegen die Anlagefläche und verhindert so, dass sich die Querausformung und Gegenquerausformung und die Längsausformung und Gegenlängsausformung voneinander trennen können.The segment is preferably held on the contact surface by at least one clamping cover, the clamping cover being fastened to the body with at least one screw which is screwed into a screw-in area. The clamping cover, in cooperation with the screw, then presses the segment against the contact surface and thus prevents the transverse and counter-transverse projections and the longitudinal and counter-longitudinal projections from being able to separate from one another.

Vorzugsweise ist der Einschraubbereich gegenüber der Anlagefläche erhöht. Damit steht hier mehr Material zum Einschrauben der Schraube zur Verfügung, was für eine sichere Halterung der Schraube von Vorteil ist.The screw-in area is preferably higher than the contact surface. This means that more material is available here for screwing in the screw, which is advantageous for securely holding the screw.

Vorzugsweise weist die Längsnut einen vorbestimmten Abstand zum Einschraubbereich auf. Damit ist es möglich, das Segment auf beiden Seiten der Längsnut am Korpus abzustützen.The longitudinal groove is preferably at a predetermined distance from the screw-in area. This makes it possible to support the segment on both sides of the longitudinal groove on the body.

Vorzugsweise geht die Quernut in die Längsnut über. Damit kann man die Masse des Korpus etwas verringern. Je geringer die Masse des Korpus ist, desto geringer sind die Kräfte, die man zum Beschleunigen und Abbremsen des Korpus benötigt. Ein derartiges Beschleunigen und Abbremsen ist bei jedem Maschenbildungsvorgang erforderlich. Je geringer die Kräfte sind, desto schneller kann die Kettenwirkmaschine, die mit der Wirkwerkzeugbarre ausgerüstet ist, betrieben werden.The transverse groove preferably merges into the longitudinal groove. This allows you to reduce the mass of the body somewhat. The lower the mass of the corpus, the lower the forces required to accelerate and decelerate the corpus. Such acceleration and deceleration is required in every knitting operation. The lower the forces, the faster the warp knitting machine equipped with the knitting tool bar can be operated.

Vorzugsweise ist der vorbestimmte Abstand größer als die Breite des Längsvorsprungs in Querrichtung. Weiterhin ist von Vorteil, dass der Quervorsprung eine Länge quer zur Längsrichtung aufweist, die größer ist als die Hälfte der Länge des Segments quer zur Längsrichtung. Man nutzt also einerseits die Materialeinsparung durch die verkürzte Länge des Quervorsprungs zur Gewichtsersparnis aus, stellt andererseits aber sicher, dass das Segment gegenüber der Längsrichtung nicht verschwenkt werden kann.Preferably, the predetermined distance is greater than the transverse width of the longitudinal projection. It is also advantageous that the transverse projection has a length transverse to the longitudinal direction that is greater than half the length of the segment transverse to the longitudinal direction. Thus, on the one hand, the material saving due to the shortened length of the transverse projection is used to save weight, but on the other hand it is ensured that the segment cannot be pivoted in relation to the longitudinal direction.

Auch ist von Vorteil, wenn die Längsnut als über die Länge des Korpus durchgehende Nut ausgebildet ist. Dies vereinfacht zum einen die Herstellung des Korpus. Zum anderen wird wiederum Material eingespart, was die Masse des Korpus klein hält.It is also advantageous if the longitudinal groove is designed as a continuous groove over the length of the body. On the one hand, this simplifies the manufacture of the body. On the other hand, material is again saved, which keeps the mass of the body small.

Auch ist von Vorteil, wenn die Quernut zu einer Längskante des Korpus hin offen ist. Dies erleichtert es, das Segment an der Anlagefläche des Korpus zur Anlage zu bringen. Man kann das Segment mit dem Quervorsprung in die Quernut einfädeln und dann das Segment auf die Anlagefläche hin herabschwenken, bis der Längsvorsprung in die Längsnut eintritt.It is also advantageous if the transverse groove is open towards a longitudinal edge of the body. This makes it easier to bring the segment into contact with the contact surface of the body. You can thread the segment with the transverse projection into the transverse groove and then swing the segment down onto the contact surface until the longitudinal projection enters the longitudinal groove.

Vorzugsweise ist mindestens ein Segment mit Wirkwerkzeugen vorbestückt. Das Bestücken des Segments kann dann in einem Bestückungsautomaten erfolgen, der gleichzeitig das Richten der Wirkwerkzeuge im Segment vornehmen kann. Das vorbestückte Segment kann dann an der Wirkwerkzeugbarre montiert werden. Aufgrund der doppelten Fixierung des Segments in Längsrichtung und in Querrichtung haben dann die Wirkwerkzeuge automatisch ihre korrekte Position.At least one segment is preferably preloaded with knitting tools. The segment can then be loaded in an automatic loading machine, which can simultaneously adjust the knitting tools in the segment. The pre-assembled segment can then be mounted on the knitting tool bar. Due to the double fixation of the segment in the longitudinal direction and in the transverse direction, the knitting tools then automatically have their correct position.

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

Fig. 1
ein Segment einer Wirkwerkzeugbarre in perspektivischer Darstellung von einer Seite,
Fig. 2
das Segment in perspektivischer Darstellung von der gegenüberliegenden Seite,
Fig. 3
einen Teil eines Korpus einer Wirkwerkzeugbarre in perspektivischer Darstellung von einer Seite,
Fig. 4
den Teil der Wirkwerkzeugbarre in perspektivischer Darstellung von der anderen Seite,
Fig. 5
den Teil der Wirkwerkzeugbarre mit angesetztem Segment und
Fig. 6
eine Darstellung entsprechend Fig. 5 mit aufgesetzten Klemmdeckeln.
The invention is described below using a preferred exemplary embodiment in conjunction with the drawing. Show in it:
1
a segment of a knitting tool bar in a perspective view from one side,
2
the segment in a perspective view from the opposite side,
3
a part of a body of a knitting tool bar in a perspective view from one side,
4
the part of the knitting tool bar in a perspective view from the other side,
figure 5
the part of the knitting tool bar with the attached segment and
6
a representation accordingly figure 5 with attached clamp covers.

Die Fig. zeigen eine Wirkwerkzeugbarre 1 einer Kettenwirkmaschine mit einem Korpus 2, der eine Längsrichtung 3 aufweist, die durch einen Doppelpfeil dargestellt ist. Die Wirkwerkzeugbarre 1 weist eine Wirkwerkzeugaufnahme auf, die mehrere voneinander getrennte Segmente 4 aufweist. Die Segmente 4 liegen an einer Anlagefläche 5 des Korpus 2 an (Fig. 6).The figures show a knitting tool bar 1 of a warp knitting machine with a body 2 which has a longitudinal direction 3 which is represented by a double arrow. The knitting tool bar 1 has a knitting tool holder which has a plurality of segments 4 that are separate from one another. The segments 4 rest against a contact surface 5 of the body 2 ( 6 ).

In der Anlagefläche 5 sind mehrere Querausformungen in der Form von Quernuten 6 ausgebildet (Fig. 3 und 4). Jedes Segment 4 weist eine Gegenquerausformung in Form eines Quervorsprungs 7 auf (Fig. 1 und 2). Die Quernut 6 und der Quervorsprung 7 verlaufen quer zur Längsrichtung 3, also in Querrichtung. Der Quervorsprung 7 weist eine Breite auf, die an die Breite der Quernut 6 angepasst ist. Wenn der Quervorsprung 7 in die Quernut eingesetzt worden ist, dann ist das Segment 4 an der Anlagefläche 5 in Längsrichtung 3 positioniert.In the contact surface 5 several transverse formations are formed in the form of transverse grooves 6 ( Figures 3 and 4 ). Each segment 4 has a counter-transverse formation in the form of a transverse projection 7 ( Figures 1 and 2 ). The transverse groove 6 and the transverse projection 7 run transversely to the longitudinal direction 3, ie in the transverse direction. The width of the transverse projection 7 is adapted to the width of the transverse groove 6 . When the transverse projection 7 has been inserted into the transverse groove, the segment 4 is positioned in the longitudinal direction 3 on the contact surface 5 .

Der Korpus 2 weist in der Anlagefläche 5 weiterhin eine Längsausformung auf, die als Längsnut 8 ausgebildet ist. In entsprechender Weise weist jedes Segment eine Gegenlängsausformung in Form eines Längsvorsprungs 9 auf. Die Längsnut 8 und der Längsvorsprung 9 verlaufen in Längsrichtung 3. Der Längsvorsprung 9 ist an die Längsnut 8 angepasst. Wenn das Segment 4 an der Anlagefläche 5 anliegt, dann tritt nicht nur der Quervorsprung 7 in die Quernut 6 ein und sichert damit die Position des Segments 4 in Längsrichtung 3, sondern der Längsvorsprung 9 tritt in die Längsnut 8 ein und sichert damit die Position des Segments 4 quer zur Längsrichtung 3.The body 2 also has a longitudinal formation in the contact surface 5 , which is designed as a longitudinal groove 8 . Correspondingly, each segment has a counter-longitudinal projection in the form of a longitudinal projection 9 . The longitudinal groove 8 and the longitudinal projection 9 run in the longitudinal direction 3. The longitudinal projection 9 is adapted to the longitudinal groove 8. When the segment 4 rests against the contact surface 5, not only does the transverse projection 7 enter the transverse groove 6 and thus secure the position of the segment 4 in the longitudinal direction 3, but the longitudinal projection 9 enters the longitudinal groove 8 and thus secure the position of the Segment 4 transverse to the longitudinal direction 3.

Das Segment 4 weist eine Nadelfußaufnahme 10 auf, in die ein Nadelfuß 11 eines Wirkwerkzeugs, das hier in Fig. 5 als Wirknadel 12 dargestellt ist, eintreten kann. Der Nadelfuß 11 sichert dagegen, dass die Wirknadel 12 aus dem Segment 4 in Richtung ihrer Längserstreckung herausgezogen werden kann.The segment 4 has a needle foot receptacle 10 into which a needle foot 11 of a knitting tool, which is shown here in figure 5 is shown as a knitting needle 12 occur can. The needle butt 11, on the other hand, ensures that the knitting needle 12 can be pulled out of the segment 4 in the direction of its longitudinal extension.

Wie man insbesondere in den Fig. 1 und 2 erkennen kann, überlappen sich der Längsvorsprung 9 und die Nadelfußaufnahme 10 teilweise. Der Längsvorsprung überlappt insbesondere die Seite der Nadelfußaufnahme, an der der Nadelfuß 11 der Wirknadel 12 anliegt.How to particular in the Figures 1 and 2 can see, the longitudinal projection 9 and the needle butt receptacle 10 partially overlap. In particular, the longitudinal projection overlaps the side of the needle butt receptacle on which the needle butt 11 of the knitting needle 12 rests.

Das Segment 4 wird durch einen Klemmdeckel 13 an der Anlagefläche 5 gehalten. Der Klemmdeckel 13 ist mit einer Schraube 14 am Korpus befestigt. Die Schraube 14 ist in einen Einschraubbereich 15 eingeschraubt.The segment 4 is held on the contact surface 5 by a clamping cover 13 . The clamp cover 13 is attached to the body with a screw 14 . The screw 14 is screwed into a screw-in area 15 .

Wie man insbesondere in den Fig. 3 und 4 erkennen kann, ist der Einschraubbereich 15 gegenüber der Anlagefläche erhöht, d. h. er weist quer zur Längsrichtung 3 und quer zur Querrichtung einen Abstand auf. Zwischen dem Einschraubbereich 15 und der Längsnut 8 ist ein Abstand 16 vorgesehen, den man auch als Teil der Anlagefläche 5 ansehen kann. Auf diesen Abstand 16 kann ein Bereich 17 des Segments 4 abgelegt werden, so dass das Segment 4 beidseits der Längsnut 8 am Korpus 2 anliegen kann.How to particular in the Figures 3 and 4 can see, the screw-in area 15 is increased relative to the contact surface, ie it has a spacing transversely to the longitudinal direction 3 and transversely to the transverse direction. A distance 16 is provided between the screw-in area 15 and the longitudinal groove 8 , which can also be regarded as part of the contact surface 5 . A region 17 of the segment 4 can be placed at this distance 16 , so that the segment 4 can lie against the body 2 on both sides of the longitudinal groove 8 .

Wie man insbesondere in Fig. 4 erkennen kann, geht die Quernut 6 in die Längsnut 8 über. Allerdings ist der Quervorsprung 7 mit einem vorbestimmten Abstand A zum Längsvorsprung 9 angeordnet. Der Abstand A ist größer als die Breite des Längsvorsprungs 9 in Querrichtung, also quer zur Längsrichtung 3. Der Quervorsprung 7 weist eine Länge quer zur Längsrichtung 3 auf, die größer ist als die Hälfte der Länge des Segments 4 quer zur Längsrichtung 3. Damit bildet der Quervorsprung 7 eine ausreichend zuverlässige Versicherung gegen ein Verdrehen des Segments 4 gegenüber dem Korpus 2.How to get in particular 4 can see, the transverse groove 6 merges into the longitudinal groove 8. However, the transverse projection 7 is arranged at a predetermined distance A from the longitudinal projection 9 . The distance A is greater than the width of the longitudinal projection 9 in the transverse direction, i.e. transverse to the longitudinal direction 3. The transverse projection 7 has a length transverse to the longitudinal direction 3 which is greater than half the length of the segment 4 transverse to the longitudinal direction 3 the transverse projection 7 is a sufficiently reliable insurance against twisting of the segment 4 relative to the body 2.

Die Längsnut 8 ist als über die Länge des Korpus durchgehende Nut ausgebildet. Die Quernut 6 ist zu einer Längskante des Korpus 2 hin offen.The longitudinal groove 8 is designed as a continuous groove over the length of the body. The transverse groove 6 is open towards a longitudinal edge of the body 2 .

Diese Maßnahmen bewirken, dass man in gewissen Grenzen Material einsparen kann, so dass die Masse der Wirkwerkzeugbarre 1 kleingehalten werden kann.These measures mean that material can be saved within certain limits, so that the mass of the knitting tool bar 1 can be kept small.

Das Segment 4 ist vorzugsweise mit Wirkwerkzeugen vorbestückt, d.h. das Segment 4 kann mit Wirknadeln 12 (oder anderen Wirkwerkzeugen) versehen sein, bevor es an dem Korpus 2 der Wirkwerkzeugbarre 1 montiert wird. Damit ist es möglich, die Wirkwerkzeuge durch einen Bestückungsautomaten in das Segment 4 einzusetzen, wobei der Bestückungsautomat auch gleichzeitig das Richten der Wirkwerkzeuge übernehmen kann. Die Wirkwerkzeuge haben dann eine klar definierte Position in dem Segment 4. Durch die Paarung von Quernut 6 und Quervorsprung 7 und die Paarung von Längsnut 8 und Längsvorsprung 9 hat dann das Segment 4 am Korpus 2 der Barre eine ebenfalls genau festgelegte Position, so dass die Wirkwerkzeuge wiederum eine genaue Positionierung an dem Korpus 2 der Wirkwerkzeugbarre 1 einnehmen können. Ein dem Montieren nachfolgendes Richten kann dann entfallen oder kann zumindest mit geringerem Aufwand durchgeführt werden.The segment 4 is preferably preloaded with knitting tools, i.e. the segment 4 can be provided with knitting needles 12 (or other knitting tools) before it is mounted on the body 2 of the knitting tool bar 1 . It is thus possible to insert the knitting tools into the segment 4 by means of an automatic placement machine, in which case the automatic placement machine can also take on the task of straightening the knitting tools at the same time. The knitting tools then have a clearly defined position in segment 4. Through the pairing of transverse groove 6 and transverse projection 7 and the pairing of longitudinal groove 8 and longitudinal projection 9, segment 4 on the body 2 of the bar also has a precisely defined position, so that the Knitting tools in turn can take a precise positioning on the body 2 of the knitting tool bar 1. A straightening following the mounting can then be omitted or can at least be carried out with less effort.

Claims (12)

  1. A knitting tool bar (1) with a body (2) comprising a longitudinal direction (3) and a knitting tool holder attached to a contact surface (5) of the body (2), which comprises a plurality of separate segments (4), wherein the contact surface (5) for each segment (4) comprises a transverse formation running transversely to the longitudinal direction (3), and each segment (4) comprises a mating transverse formation that matches the transverse formation, wherein a longitudinal formation running in the longitudinal direction is provided in the contact surface (5), wherein at least one segment (4) comprises a mating longitudinal formation interacting with the longitudinal formation and wherein the longitudinal formation is designed as longitudinal groove (8) on the contact surface (5), and the mating longitudinal formation is designed as longitudinal projection (9) on the segment (4), wherein the transverse formation is designed as a transverse groove (6) and the mating transverse formation is designed as a transverse projection (7) on the segment (4) characterized in that the transverse projection (7) is arranged at a predetermined distance (A) to the longitudinal projection (9).
  2. Knitting tool bar according to Claim 1, characterized in that the segment (4) comprises a needle foot holder (10), and the longitudinal projection (9) is arranged in the area of the needle foot holder (10).
  3. Knitting tool bar according to Claim 2, characterized in that the longitudinal projection (9) and the needle foot holder (10) at least partially overlap in a direction transversely to the longitudinal direction (3).
  4. Knitting tool bar according to any one of the Claims 1 to 3, characterized in that the segment (4) is held by at least one clamping cover (13) on the contact surface (5), wherein the clamping cover (13) is fixed with at least one screw (14) to the body (2), which is screwed into a screw-in area (15).
  5. Knitting tool bar according to Claim 4, characterized in that the screw-in area (15) is elevated with relation to the contact surface (5).
  6. Knitting tool bar according to Claim 4 or 5, characterized in that the longitudinal groove (8) is at a predetermined distance to the screw-in area (15).
  7. Knitting tool bar according to any of Claims 1 to 6, characterized in that transverse groove (6) transitions into longitudinal groove (8).
  8. Knitting tool bar according to Claim 7, characterized in that the predetermined distance (A) is greater than the width of the longitudinal projection (9) in the transverse direction.
  9. Knitting tool bar according to Claim 7 or 8, characterized in that the transverse projection (7) comprises a length transverse longitudinal direction (3) which is greater than half the length of the segment (4) that is transverse to the longitudinal direction (3).
  10. Knitting tool bar according to any one of the Claims 1 to 9, characterized in that the longitudinal groove (8) is designed as a groove continuous across the length of the body (2).
  11. Knitting tool bar according to any one of the Claims 1 to 10, characterized in that the transverse groove (6) is open to a longitudinal edge of the body (2).
  12. Knitting tool bar according to any one of the Claims 1 to 11, characterized in that at least one segment (4) is pre-equipped with knitting tools.
EP21166460.2A 2021-03-31 2021-03-31 Warp knitting tool bar Active EP4067546B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21166460.2A EP4067546B1 (en) 2021-03-31 2021-03-31 Warp knitting tool bar
CN202210329949.0A CN115142186B (en) 2021-03-31 2022-03-31 Knitting tool bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21166460.2A EP4067546B1 (en) 2021-03-31 2021-03-31 Warp knitting tool bar

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EP4067546A1 EP4067546A1 (en) 2022-10-05
EP4067546B1 true EP4067546B1 (en) 2023-05-03

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ID=75339643

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Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB788764A (en) * 1955-02-23 1958-01-08 Karl Mayer Erste Hessische Wir Improvements in or relating to needle bars for warp knitting machines
US5295450A (en) * 1992-05-01 1994-03-22 Card-Monroe Corp. Tufting machine with self-aligning gauging modules
DE29520281U1 (en) * 1995-12-21 1996-03-14 Jos. Zimmermann GmbH & Co KG, 52064 Aachen Module and bar for tufting tools
ES2371248T3 (en) * 2004-10-18 2011-12-28 Nippon Mayer Ltd. PROCEDURE AND APPARATUS FOR THE MANUFACTURE OF A THREE-DIMENSION FABRIC OF THREADED URDIMBRE WITH VARIABLE CROSS SECTIONS.
DE102009020028B4 (en) * 2009-05-05 2017-02-16 Karl Mayer Textilmaschinenfabrik Gmbh Warp knitting machine
EP2570541B1 (en) * 2011-09-16 2014-03-26 Karl Mayer Textilmaschinenfabrik GmbH Actuating tool bar
EP2623652A1 (en) 2012-01-31 2013-08-07 Karl Mayer Textilmaschinenfabrik GmbH Knitting tool block and method for creating same
EP2650416A1 (en) * 2012-04-12 2013-10-16 Karl Mayer Textilmaschinenfabrik GmbH Guide bar assembly for a warp knitting machine
DE202012104948U1 (en) * 2012-12-18 2013-01-24 Groz-Beckert Kg Tool module for textile machine
EP3081681B1 (en) * 2015-04-15 2017-03-22 Karl Mayer Textilmaschinenfabrik GmbH Warp knitting tool bar
EP3249087A1 (en) * 2016-05-27 2017-11-29 Karl Mayer Textilmaschinenfabrik GmbH Bar of a knitwear machine
ES2747548T3 (en) * 2017-01-25 2020-03-10 Karl Mayer R&D Gmbh Knitting Toolbar
EP3587644B1 (en) * 2018-06-22 2021-03-10 KARL MAYER STOLL R&D GmbH Warp knitting tool mounting unit

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CN115142186B (en) 2023-10-10
EP4067546A1 (en) 2022-10-05

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